class ResourceReader:
config=None
def __init__(self):
self.mon=Monitor()
self.mon.on()
def read(self,pp_dir,pp_home):
if ResourceReader.config==None:
tryfile=pp_home+os.sep+"resources.cfg"
if os.path.exists(tryfile):
filename=tryfile
else:
self.mon.log(self,"Resources not found at "+ tryfile)
tryfile=pp_dir+os.sep+'pp_home'+os.sep+"resources.cfg"
if os.path.exists(tryfile):
filename=tryfile
else:
self.mon.log(self,"Resources not found at "+ tryfile)
self.mon.err(self,"resources.cfg not found")
return False
ResourceReader.config = ConfigParser.ConfigParser()
ResourceReader.config.read(filename)
self.mon.log(self,"Read resources from "+ filename)
return True
def get(self,section,item):
if ResourceReader.config.has_option(section,item)==False:
return False
else:
return ResourceReader.config.get(section,item)
class ResourceReader:
config = None
def __init__(self):
self.mon = Monitor()
self.mon.on()
def read(self, pp_dir, pp_home):
if ResourceReader.config == None:
tryfile = pp_home + os.sep + "resources.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
self.mon.log(self, "Resources not found at " + tryfile)
tryfile = pp_dir + os.sep + 'pp_home' + os.sep + "resources.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
self.mon.log(self, "Resources not found at " + tryfile)
self.mon.err(self, "resources.cfg not found")
return False
ResourceReader.config = ConfigParser.ConfigParser()
ResourceReader.config.read(filename)
self.mon.log(self, "Read resources from " + filename)
return True
def get(self, section, item):
if ResourceReader.config.has_option(section, item) == False:
return False
else:
return ResourceReader.config.get(section, item)
class ResourceReader(object):
config = None
def __init__(self):
self.mon = Monitor()
self.mon.on()
def read(self, pp_dir, pp_home, pp_profile):
"""
looks for resources.cfg in the profile, then in pp_home, then in the pi_presents directory.
returns True if it finds the resources.cfg, otherwise returns False
::param pp_dir: the PiPresents directory
::param pp_home: the current pp_home directory
::param pp_profile: the current profile directory
"""
if not ResourceReader.config:
profile_config = os.path.join(pp_profile, "resources.cfg")
home_config = os.path.join(pp_home, "resources.cfg")
pp_config = os.path.join(pp_dir, 'pp_home', "resources.cfg")
# try inside profile
if os.path.exists(profile_config):
config_path = profile_config
# try inside pp_home
elif os.path.exists(home_config):
config_path = home_config
# try in the pi presents directory
elif os.path.exists(pp_config):
config_path = pp_config
else:
# throw an error if we can't find any config files
self.mon.err(self, "resources.cfg not found at {0}, {1} or {2}".format(profile_config, home_config, pp_config))
return False
ResourceReader.config = ConfigParser.ConfigParser()
ResourceReader.config.read(config_path)
self.mon.log(self, "resources.cfg read from " + config_path)
return True
def get(self, section, item):
if not ResourceReader.config.has_option(section, item):
return False
else:
return ResourceReader.config.get(section, item)
class ResourceReader:
config = None
def __init__(self):
self.mon = Monitor()
self.mon.on()
def read(self, pp_dir, pp_home, pp_profile):
if ResourceReader.config == None:
# try inside profile
tryfile = pp_profile + os.sep + "resources.cfg"
# self.mon.log(self,"Trying resources.cfg in profile at: "+ tryfile)
if os.path.exists(tryfile):
filename = tryfile
else:
# try inside pp_home
# self.mon.log(self,"resources.cfg not found at "+ tryfile+ " trying pp_home")
tryfile = pp_home + os.sep + "resources.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
# try inside pipresents
# self.mon.log(self,"resources.cfg not found at "+ tryfile + " trying inside pipresents")
tryfile = pp_dir + os.sep + 'pp_home' + os.sep + "resources.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
self.mon.log(self,
"resources.cfg not found at " + tryfile)
self.mon.err(self, "resources.cfg not found")
return False
ResourceReader.config = ConfigParser.ConfigParser()
ResourceReader.config.read(filename)
self.mon.log(self, "resources.cfg read from " + filename)
return True
def get(self, section, item):
if ResourceReader.config.has_option(section, item) == False:
return False
else:
return ResourceReader.config.get(section, item)
class ResourceReader:
config=None
def __init__(self):
self.mon=Monitor()
self.mon.on()
def read(self,pp_dir,pp_home,pp_profile):
if ResourceReader.config==None:
# try inside profile
tryfile=pp_profile+os.sep+"resources.cfg"
# self.mon.log(self,"Trying resources.cfg in profile at: "+ tryfile)
if os.path.exists(tryfile):
filename=tryfile
else:
# try inside pp_home
# self.mon.log(self,"resources.cfg not found at "+ tryfile+ " trying pp_home")
tryfile=pp_home+os.sep+"resources.cfg"
if os.path.exists(tryfile):
filename=tryfile
else:
# try inside pipresents
# self.mon.log(self,"resources.cfg not found at "+ tryfile + " trying inside pipresents")
tryfile=pp_dir+os.sep+'pp_home'+os.sep+"resources.cfg"
if os.path.exists(tryfile):
filename=tryfile
else:
self.mon.log(self,"resources.cfg not found at "+ tryfile)
self.mon.err(self,"resources.cfg not found")
return False
ResourceReader.config = ConfigParser.ConfigParser()
ResourceReader.config.read(filename)
self.mon.log(self,"resources.cfg read from "+ filename)
return True
def get(self,section,item):
if ResourceReader.config.has_option(section,item)==False:
return False
else:
return ResourceReader.config.get(section,item)
class uzblDriver(object):
def __init__(self, widget):
self.widget = widget
self.mon = Monitor()
self.mon.on()
self._process = None
self.fifo = ""
def pause(self):
pass
def stop(self):
self.control("exit")
# kill the subprocess (uzbl). Used for tidy up on exit.
def terminate(self, reason):
self.terminate_reason = reason
if self.exists_fifo():
self.control("exit")
# self._process.close(force=True)
self.end_play_signal = True
def play(self, track, geometry):
self.start_play_signal = False
self.end_play_signal = False
# track= "'"+ track.replace("'","'\\''") + "'"
cmd = "uzbl-browser " + geometry + "--uri=" + track
self.mon.log(self, "Send command to uzbl: " + cmd)
self._process = pexpect.spawn(cmd)
# uncomment to monitor output to and input from uzbl (read pexpect manual)
# fout= file('/home/pi/pipresents/uzbllogfile.txt','w') #uncomment and change sys.stdout to fout to log to a file
# self._process.logfile_send = sys.stdout # send just commands to stdout
# self._process.logfile=fout # send all communications to log
# and poll for fifo to be available
self.get_fifo()
# poll for fifo to be available
# when it is set start_play_signal
# then monitor for it to be delted because browser is closed
# and the set end_play signal
def get_fifo(self):
"""
Look for UZBL's FIFO-file in /tmp.
Don't give up until it has been found.
"""
candidates = glob("/tmp/uzbl_fifo_*")
for file in candidates:
if S_ISFIFO(os_stat(file).st_mode):
self.mon.log(self, "Found UZBL fifo in %s." % file)
self.fifo = file
self.start_play_signal = True
return
# print 'not found trying again'
self.widget.after(500, self.get_fifo)
def exists_fifo(self):
if os.path.exists(self.fifo):
return True
else:
return False
# send commands to uzbl via the fifo
def control(self, data):
if self.exists_fifo():
self.mon.log(self, "send command to uzbl:" + data)
f = open(self.fifo, "a")
f.write("%s\n" % data)
f.close()
# test of whether _process is running
def is_running(self):
return self._process.isalive()
class MenuShow:
""" Displays a menu with optional hint below it. User can traverse the menu and
select a track using key or button presses.
Interface:
* play - displays the menu and selects the first entry
* input_pressed, - receives user events passes them to a Player if a track is playing,
otherwise actions them with _next, _previous, _play_selected_track, _end
Optional display of eggtimer by means of Players ready_callback
Supports imageplayer, videoplayer,messagplayer,audioplayer,menushow,mediashow
Destroys itself on exit
"""
# *********************
# external interface
# ********************
def __init__(self,
show_params,
root,
canvas,
showlist,
pp_dir,
pp_home,
pp_profile):
""" canvas - the canvas that the menu is to be written on
show - the name of the configuration dictionary section for the menu
showlist - the showlist
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory"""
self.mon=Monitor()
self.mon.on()
self.display_guidelines_command=show_params['menu-guidelines']
self.display_guidelines=self.display_guidelines_command
#instantiate arguments
self.show_params=show_params
self.root=root
self.canvas=canvas
self.showlist=showlist
self.pp_dir=pp_dir
self.pp_home=pp_home
self.pp_profile=pp_profile
# open resources
self.rr=ResourceReader()
# init variables
self.drawn = None
self.player=None
self.shower=None
self.menu_timeout_running=None
self.error=False
def play(self,show_id,end_callback,ready_callback,top=False,command='nil'):
""" displays the menu
end_callback - function to be called when the menu exits
ready_callback - callback when menu is ready to display (not used)
top is True when the show is top level (run from [start])
"""
#instantiate arguments
self.show_id=show_id
self.end_callback=end_callback
self.ready_callback=ready_callback
self.top=top
self.command=command
# check data files are available.
self.menu_file = self.pp_profile + "/" + self.show_params['medialist']
if not os.path.exists(self.menu_file):
self.mon.err(self,"Medialist file not found: "+ self.menu_file)
self.end('error',"Medialist file not found")
#create a medialist for the menu and read it.
self.medialist=MediaList()
if self.medialist.open_list(self.menu_file,self.showlist.sissue()) == False:
self.mon.err(self,"Version of medialist different to Pi Presents")
self.end('error',"Version of medialist different to Pi Presents")
#get control bindings for this show if top level
controlsmanager=ControlsManager()
if self.top==True:
self.controls_list=controlsmanager.default_controls()
# and merge in controls from profile
self.controls_list=controlsmanager.merge_show_controls(self.controls_list,self.show_params['controls'])
if self.show_params['has-background']=="yes":
background_index=self.medialist.index_of_track ('pp-menu-background')
if background_index>=0:
self.menu_img_file = self.complete_path(self.medialist.track(background_index)['location'])
if not os.path.exists(self.menu_img_file):
self.mon.err(self,"Menu background file not found: "+ self.menu_img_file)
self.end('error',"Menu background file not found")
else:
self.mon.err(self,"Menu background not found in medialist")
self.end('error',"Menu background not found")
self.end_menushow_signal= False
if self.ready_callback<>None:
self.ready_callback()
self.menu_timeout_value=int(self.show_params['timeout'])*1000
self.do_menu()
def do_menu(self):
#start timeout alarm if required
if int(self.show_params['timeout'])<>0:
self.menu_timeout_running=self.canvas.after(self.menu_timeout_value,self.timeout_menu)
if self.show_params['menu-background-colour']<>'':
self.canvas.config(bg=self.show_params['menu-background-colour'])
self.canvas.delete('pp-content')
self.canvas.update()
# display background image
if self.show_params['has-background']=="yes":
self.display_background()
self.delete_eggtimer()
self.display_new_menu()
self.canvas.tag_raise('pp-click-area')
self.canvas.update_idletasks( )
# display menu text if enabled
if self.show_params['menu-text']<> '':
self.canvas.create_text(int(self.show_params['menu-text-x']),int(self.show_params['menu-text-y']),
anchor=NW,
text=self.show_params['menu-text'],
fill=self.show_params['menu-text-colour'],
font=self.show_params['menu-text-font'],
tag='pp-content')
self.canvas.update_idletasks( )
# display instructions (hint)
hint_text=self.show_params['hint-text']
if hint_text<>'':
self.canvas.create_text(int(self.show_params['hint-x']),int(self.show_params['hint-y']),
anchor=NW,
text=hint_text,
fill=self.show_params['hint-colour'],
font=self.show_params['hint-font'],
tag='pp-content')
self.canvas.update_idletasks( )
#stop received from another concurrent show
def managed_stop(self):
if self.menu_timeout_running<>None:
self.canvas.after_cancel(self.menu_timeout_running)
self.menu_timeout_running=None
if self.shower<>None:
self.shower.managed_stop()
elif self.player<>None:
self.end_menushow_signal=True
self.player.input_pressed('stop')
else:
self.end('normal','stopped by ShowManager')
# kill or error received
def terminate(self,reason):
if self.menu_timeout_running<>None:
self.canvas.after_cancel(self.menu_timeout_running)
self.menu_timeout_running=None
if self.shower<>None:
self.shower.terminate(reason)
elif self.player<>None:
self.player.terminate(reason)
else:
self.end(reason,'Terminated no shower or player running')
# respond to user inputs.
def input_pressed(self,symbol,edge,source):
self.mon.log(self,"Show Id: "+str(self.show_id)+" received key or operation: " + symbol)
if self.show_params['disable-controls']=='yes':
return
# if at top convert symbolic name to operation otherwise lower down we have received an operation
# look through list of standard symbols to find match (symbolic-name, function name) operation =lookup (symbol
if self.top==True:
operation=self.lookup_control(symbol,self.controls_list)
else:
operation=symbol
# print 'operation',operation
# if no match for symbol against standard operations then return
if operation=='':
return
else:
if self.shower<>None:
# if next lower show is running pass down operatin to the show and lower levels
self.shower.input_pressed(operation,source,edge)
else:
#service the standard inputs for this show
if operation=='stop':
if self.menu_timeout_running<>None:
self.canvas.after_cancel(self.menu_timeout_running)
self.menu_timeout_running=None
if self.shower<>None:
self.shower.input_pressed('stop',edge,source)
elif self.player<>None:
self.player.input_pressed('stop')
else:
# not at top so end the show
if self.top == False:
self.end('normal',"exit from stop command")
else:
pass
elif operation in ('up','down'):
# if child or sub-show running and is a show pass down
# if child not running - move
if self.shower<>None:
self.shower.input_pressed(operation,edge,source)
else:
if self.player==None:
if self.menu_timeout_running<>None:
self.canvas.after_cancel(self.menu_timeout_running)
self.menu_timeout_running=self.canvas.after(self.menu_timeout_value,self.timeout_menu)
if operation=='up':
self.previous()
else:
self.next()
elif operation =='play':
# if child running and is show - pass down
# if no track already running - play
if self.shower<>None:
self.shower.input_pressed(operation,edge,source)
else:
if self.player==None:
self.play_selected_track(self.medialist.selected_track())
elif operation == 'pause':
# pass down if show or track running.
if self.shower<>None:
self.shower.input_pressed(operation,edge,source)
elif self.player<>None:
self.player.input_pressed(operation)
elif operation[0:4]=='omx-' or operation[0:6]=='mplay-'or operation[0:5]=='uzbl-':
if self.player<>None:
self.player.input_pressed(operation)
def lookup_control(self,symbol,controls_list):
for control in controls_list:
if symbol == control[0]:
return control[1]
return ''
# *********************
# INTERNAL FUNCTIONS
# ********************
# *********************
# Sequencing
# *********************
def timeout_menu(self):
self.end('normal','menu timeout')
return
def next(self):
self.highlight_menu_entry(self.menu_index,False)
self.medialist.next('ordered')
if self.menu_index==self.menu_length-1:
self.menu_index=0
else:
self.menu_index+=1
self.highlight_menu_entry(self.menu_index,True)
def previous(self):
self.highlight_menu_entry(self.menu_index,False)
if self.menu_index==0:
self.menu_index=self.menu_length-1
else:
self.menu_index-=1
self.medialist.previous('ordered')
self.highlight_menu_entry(self.menu_index,True)
# at the end of a track just re-display the menu with the original callback from the menu
def what_next(self,message):
# user wants to end
if self.end_menushow_signal==True:
self.end_menushow_signal=False
self.end('normal',"show ended by user")
else:
self.do_menu()
# *********************
# Dispatching to Players
# *********************
def play_selected_track(self,selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
#remove menu and show working.....
if self.menu_timeout_running<>None:
self.canvas.after_cancel(self.menu_timeout_running)
self.menu_timeout_running=None
self.canvas.delete('pp-content')
self.display_eggtimer(self.resource('menushow','m01'))
# dispatch track by type
self.player=None
self.shower=None
track_type = selected_track['type']
self.mon.log(self,"Track type is: "+ track_type)
if track_type=="video":
# create a videoplayer
track_file=self.complete_path(selected_track['location'])
self.player=VideoPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.delete_eggtimer,
enable_menu=False)
elif track_type=="audio":
# create a audioplayer
track_file=self.complete_path(selected_track['location'])
self.player=AudioPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.delete_eggtimer,
enable_menu=False)
elif track_type=="image":
# images played from menus don't have children
track_file=self.complete_path(selected_track['location'])
self.player=ImagePlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.delete_eggtimer,
enable_menu=False,
)
elif track_type=="web":
# create a browser
track_file=self.complete_path(selected_track['location'])
self.player=BrowserPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.delete_eggtimer,
enable_menu=False)
elif track_type=="message":
# bit odd because MessagePlayer is used internally to display text.
text=selected_track['text']
self.player=MessagePlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(text,
self.showlist,
self.end_player,
self.delete_eggtimer,
enable_menu=False
)
elif track_type=="show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >=0:
self.showlist.select(index)
selected_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ selected_track['sub-show'])
self.end("Unknown show")
if selected_show['type']=="mediashow":
self.shower= MediaShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.delete_eggtimer,top=False,command='nil')
elif selected_show['type']=="liveshow":
self.shower= LiveShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.delete_eggtimer,top=False,command='nil')
elif selected_show['type']=="radiobuttonshow":
self.shower= RadioButtonShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="hyperlinkshow":
self.shower= HyperlinkShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="menu":
self.shower= MenuShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.delete_eggtimer,top=False,command='nil')
else:
self.mon.err(self,"Unknown Show Type: "+ selected_show['type'])
self.end("Unknown show type")
else:
self.mon.err(self,"Unknown Track Type: "+ track_type)
self.end("Unknown track type")
# callback from when player ends
def end_player(self,reason,message):
self.mon.log(self,"Returned from player with message: "+ message)
self.player=None
if reason in("killed","error"):
self.end(reason,message)
else:
self.display_eggtimer(self.resource('menushow','m02'))
self.what_next(message)
# callback from when shower ends
def end_shower(self,show_id,reason,message):
self.mon.log(self,"Returned from shower with message: "+ message)
self.shower=None
if reason in ("killed","error"):
self.end(reason,message)
else:
self.display_eggtimer(self.resource('menushow','m03'))
self.what_next(message)
# *********************
# Ending the show
# *********************
# finish the player for killing, error or normally
# this may be called directly if sub/child shows or players are not running
# if they might be running then need to call terminate?????
def end(self,reason,message):
self.mon.log(self,"Ending menushow: "+ self.show_params['show-ref'])
if self.menu_timeout_running<>None:
self.canvas.after_cancel(self.menu_timeout_running)
self.menu_timeout_running=None
self.end_callback(self.show_id,reason,message)
self=None
return
# *********************
# Displaying things
# *********************
def display_background(self):
pil_menu_img=PIL.Image.open(self.menu_img_file)
self.menu_background = PIL.ImageTk.PhotoImage(pil_menu_img)
self.drawn = self.canvas.create_image(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
image=self.menu_background,
anchor=CENTER,
tag='pp-content')
def display_new_menu(self):
# calculate menu geometry
error,reason=self.calculate_geometry()
if error<>'normal':
self.mon.err(self,"Menu geometry error: "+ reason)
self.end('error',"Menu geometry error")
else:
# display the menu entries
self.display_menu_entries()
def display_menu_entries(self):
# init the loop
column_index=0
row_index=0
self.menu_length=1
# id store is a list of elements each being a list of the three ids of the elements of the entry
self.menu_entry_id=[]
# offsets for the above
self.icon_id_index=0 # rectangle around the icon
self.image_id_index=1 # icon image - needed for tkinter
self.text_id_index=2 # the text - need whn no icon is displayed
#select the startof the medialist
self.medialist.start()
#loop through menu entries
while True:
#display the entry
#calculate top left corner of entry
self.calculate_entry_position(column_index,row_index)
# display the button strip
self.display_entry_strip()
#display the selected entry highlight
icon_id=self.display_icon_rectangle()
#display the image in the icon
image_id=self.display_icon_image()
if self.show_params['menu-text-mode']<>'none':
text_id=self.display_icon_text()
else:
text_id=None
#append id's to the list
self.menu_entry_id.append([icon_id,image_id,text_id])
self.canvas.update_idletasks( )
#and loop
if self.medialist.at_end():
break
self.menu_length+=1
self.medialist.next('ordered')
if self.direction=='horizontal':
column_index+=1
if column_index>=self.menu_columns:
column_index=0
row_index+=1
else:
row_index+=1
if row_index>=self.menu_rows:
row_index=0
column_index+=1
# finally select and highlight the first entry
self.medialist.start()
self.menu_index=0
self.highlight_menu_entry(self.menu_index,True)
def print_geometry(self,total_width,total_height):
print 'menu width: ', self.menu_width
print 'columns', self.menu_columns
print 'icon width: ', self.icon_width
print 'horizontal padding: ', self.menu_horizontal_padding
print 'text width: ', self.text_width
print 'entry width: ', self.entry_width
print 'total width: ', total_width
print 'x separation: ', self.x_separation
print ''
print 'menu height', self.menu_height
print 'rows: ', self.menu_rows
print 'icon height', self.icon_height
print 'vertical padding: ', self.menu_vertical_padding
print 'text height', self.text_height
print 'entry height', self.entry_height
print 'total height', total_height
print 'y separation', self.y_separation
# ------------------------------------------------------------------
#calculate menu entry size and separation between menu entries
# ------------------------------------------------------------------
def calculate_geometry(self):
self.display_strip=self.show_params['menu-strip']
self.screen_width=int(self.canvas['width'])
self.screen_height=int(self.canvas['height'])
if self.display_strip=='yes':
self.strip_padding=int(self.show_params['menu-strip-padding'])
else:
self.strip_padding=0
# parse the menu window
error,reason,self.menu_x_left,self.menu_y_top,self.menu_x_right,self.menu_y_bottom=self.parse_menu_window(self.show_params['menu-window'])
if error<>'normal':
return 'error',"Menu Window error: "+ reason
if self.show_params['menu-icon-mode']=='none' and self.show_params['menu-text-mode']=='none':
return 'error','Icon and Text are both None'
if self.show_params['menu-icon-mode']=='none' and self.show_params['menu-text-mode']=='overlay':
return 'error','cannot overlay none icon'
self.direction=self.show_params['menu-direction']
self.menu_width=self.menu_x_right - self.menu_x_left
self.menu_height=self.menu_y_bottom - self.menu_y_top
self.list_length=self.medialist.display_length()
# get or calculate rows and columns
if self.direction=='horizontal':
if self.show_params['menu-columns']=='':
return 'error','blank columns for horizontal direction'
self.menu_columns=int(self.show_params['menu-columns'])
self.menu_rows=self.list_length//self.menu_columns
if self.list_length % self.menu_columns<>0:
self.menu_rows+=1
else:
if self.show_params['menu-rows']=='':
return 'error','blank rows for vertical direction'
self.menu_rows=int(self.show_params['menu-rows'])
self.menu_columns=self.list_length//self.menu_rows
if self.list_length % self.menu_rows<>0:
self.menu_columns+=1
self.x_separation=int(self.show_params['menu-horizontal-separation'])
self.y_separation=int(self.show_params['menu-vertical-separation'])
# get size of padding depending on exitence of icon and text
if self.show_params['menu-icon-mode'] in ('thumbnail','bullet') and self.show_params['menu-text-mode'] == 'right':
self.menu_horizontal_padding=int(self.show_params['menu-horizontal-padding'])
else:
self.menu_horizontal_padding=0
if self.show_params['menu-icon-mode'] in ('thumbnail','bullet') and self.show_params['menu-text-mode'] == 'below':
self.menu_vertical_padding=int(self.show_params['menu-vertical-padding'])
else:
self.menu_vertical_padding=0
#calculate size of icon depending on use
if self.show_params['menu-icon-mode'] in ('thumbnail','bullet'):
self.icon_width=int(self.show_params['menu-icon-width'])
self.icon_height=int(self.show_params['menu-icon-height'])
else:
self.icon_width=0
self.icon_height=0
#calculate size of text box depending on mode
if self.show_params['menu-text-mode']<>'none':
self.text_width=int(self.show_params['menu-text-width'])
self.text_height=int(self.show_params['menu-text-height'])
else:
self.text_width=0
self.text_height=0
# calculate size of entry box by combining text and icon sizes
if self.show_params['menu-text-mode'] == 'right':
self.entry_width=self.icon_width+self.menu_horizontal_padding+self.text_width
self.entry_height=max(self.text_height,self.icon_height)
elif self.show_params['menu-text-mode']=='below':
self.entry_width=max(self.text_width,self.icon_width)
self.entry_height=self.icon_height + self.menu_vertical_padding + self.text_height
else:
# no text or overlaid text
if self.show_params['menu-icon-mode'] in ('thumbnail','bullet'):
# icon only
self.entry_width=self.icon_width
self.entry_height=self.icon_height
else:
#text only
self.entry_width=self.text_width
self.entry_height=self.text_height
if self.entry_width<=self.menu_horizontal_padding:
return 'error','entry width is zero'
if self.entry_height<=self.menu_vertical_padding:
return 'error','entry height is zero'
# calculate totals for debugging puropses
total_width=self.menu_columns * self.entry_width +(self.menu_columns-1)*self.x_separation
total_height=self.menu_rows * self.entry_height + (self.menu_rows-1)*self.y_separation
# self.print_geometry(total_width,total_height)
# display guidelines and debgging text if there is a problem
if total_width>self.menu_width and self.display_guidelines<>'never':
self.display_guidelines='always'
self.mon.log(self,'\nMENU IS WIDER THAN THE WINDOW')
self.print_geometry(total_width,total_height)
if total_height>self.menu_height and self.display_guidelines<>'never':
self.display_guidelines='always'
self.mon.log(self,'\nMENU IS TALLER THAN THE WINDOW')
self.print_geometry(total_width,total_height)
# display calculated total rectangle guidelines for debugging
if self.display_guidelines=='always':
points=[self.menu_x_left,self.menu_y_top, self.menu_x_left+total_width,self.menu_y_top+total_height]
# and display the icon rectangle
self.canvas.create_rectangle(points,
outline='red',
fill='',
tag='pp-content')
# display menu rectangle guidelines for debugging
if self.display_guidelines=='always':
points=[self.menu_x_left,self.menu_y_top, self.menu_x_right,self.menu_y_bottom]
self.canvas.create_rectangle(points,
outline='blue',
fill='',
tag='pp-content')
return 'normal',''
def calculate_entry_position(self,column_index,row_index):
self.entry_x=self.menu_x_left+ column_index*(self.x_separation+self.entry_width)
self.entry_y=self.menu_y_top+ row_index*(self.y_separation+self.entry_height)
def display_entry_strip(self):
if self.display_strip=='yes':
if self.direction=='vertical':
#display the strip
strip_points=[self.entry_x - self.strip_padding -1 ,
self.entry_y - self.strip_padding - 1,
self.entry_x+ self.entry_width + self.strip_padding - 1,
self.entry_y+self.entry_height+ self.strip_padding - 1]
self.canvas.create_rectangle(strip_points,
outline='',
fill='gray',
stipple='gray12',
tag='pp-content')
top_l_points=[self.entry_x - self.strip_padding,
self.entry_y - self.strip_padding,
self.entry_x + self.entry_width + self.strip_padding ,
self.entry_y - self.strip_padding]
self.canvas.create_line(top_l_points,
fill='light gray',
tag='pp-content')
bottom_l_points=[self.entry_x - self.strip_padding,
self.entry_y + self.entry_height + self.strip_padding,
self.entry_x+ self.entry_width + self.strip_padding ,
self.entry_y+ self.entry_height + self.strip_padding]
self.canvas.create_line(bottom_l_points,
fill='dark gray',
tag='pp-content')
left_l_points=[self.entry_x - self.strip_padding,
self.entry_y - self.strip_padding,
self.entry_x - self.strip_padding,
self.entry_y + self.entry_height + self.strip_padding]
self.canvas.create_line(left_l_points,
fill='gray',
tag='pp-content')
else:
#display the strip vertically
strip_points=[self.entry_x - self.strip_padding +1 ,
self.entry_y - self.strip_padding +1,
self.entry_x+self.entry_width + self.strip_padding -1,
self.entry_y + self.entry_height+ self.strip_padding -1]
self.canvas.create_rectangle(strip_points,
outline='',
fill='gray',
stipple='gray12',
tag='pp-content')
top_l_points=[self.entry_x - self.strip_padding,
self.entry_y - self.strip_padding,
self.entry_x + self.entry_width + self.strip_padding,
self.entry_y - self.strip_padding]
self.canvas.create_line(top_l_points,
fill='light gray',
tag='pp-content')
left_l_points=[self.entry_x - self.strip_padding,
self.entry_y - self.strip_padding,
self.entry_x - self.strip_padding,
self.entry_y + self.entry_height+ self.strip_padding]
self.canvas.create_line(left_l_points,
fill='gray',
tag='pp-content')
right_l_points=[self.entry_x +self.entry_width + self.strip_padding,
self.entry_y - self.strip_padding,
self.entry_x +self.entry_width + self.strip_padding,
self.entry_y + self.entry_height+ self.strip_padding]
self.canvas.create_line(right_l_points,
fill='dark gray',
tag='pp-content')
# display the rectangle that goes arond the icon when the entry is selected
def display_icon_rectangle(self):
if self.show_params['menu-icon-mode'] in ('thumbnail','bullet'):
#calculate icon parameters
if self.icon_width<self.text_width and self.show_params['menu-text-mode']=='below':
self.icon_x_left=self.entry_x+abs(self.icon_width-self.text_width)/2
else:
self.icon_x_left=self.entry_x
self.icon_x_right=self.icon_x_left+self.icon_width
if self.icon_height<self.text_height and self.show_params['menu-text-mode']=='right':
self.icon_y_top=self.entry_y+abs(self.icon_height-self.text_height)/2
else:
self.icon_y_top=self.entry_y
self.icon_y_bottom=self.icon_y_top+self.icon_height
req_horiz_sep=self.menu_horizontal_padding
req_vert_sep=self.menu_vertical_padding
points=[self.icon_x_left,self.icon_y_top,self.icon_x_right,self.icon_y_top,self.icon_x_right,self.icon_y_bottom,self.icon_x_left,self.icon_y_bottom]
# display guidelines make it white when not selctedfor debugging
if self.display_guidelines=='always':
outline='white'
else:
outline=''
# and display the icon rectangle
icon_id=self.canvas.create_polygon(points,
outline=outline,
fill='',
tag='pp-content')
else:
# not using icon so set starting point for text to zero icon size
self.icon_x_right=self.entry_x
self.icon_y_bottom=self.entry_y
req_horiz_sep=0
req_vert_sep=0
icon_id=None
return icon_id
#display the image in a menu entry
def display_icon_image(self):
image_id=None
if self.show_params['menu-icon-mode'] == 'thumbnail':
# try for the thumbnail
if self.medialist.selected_track()['thumbnail']<>'' and os.path.exists(self.complete_path(self.medialist.selected_track()['thumbnail'])):
self.pil_image=PIL.Image.open(self.complete_path(self.medialist.selected_track()['thumbnail']))
else:
#cannot find thumbnail get the image if its an image track
if self.medialist.selected_track()['type'] =='image':
self.track=self.complete_path(self.medialist.selected_track()['location'])
else:
self.track=''
if self.medialist.selected_track()['type']=='image' and os.path.exists(self.track)==True:
self.pil_image=PIL.Image.open(self.track)
else:
#use a standard thumbnail
type=self.medialist.selected_track()['type']
standard=self.pp_dir+os.sep+'pp_home'+os.sep+'pp_resources'+os.sep+type+'.png'
if os.path.exists(standard)==True:
self.pil_image=PIL.Image.open(standard)
self.mon.log(self,'WARNING: default thumbnail used for '+self.medialist.selected_track()['title'])
else:
self.pil_image=None
# display the image
if self.pil_image<>None:
self.pil_image=self.pil_image.resize((self.icon_width-2,self.icon_height-2))
image_id=PIL.ImageTk.PhotoImage(self.pil_image)
self.canvas.create_image(self.icon_x_left+1, self.icon_y_top+1,
image=image_id, anchor=NW,
tag='pp-content')
else:
image_id=None
elif self.show_params['menu-icon-mode'] =='bullet':
bullet=self.complete_path(self.show_params['menu-bullet'])
if os.path.exists(bullet)==False:
self.pil_image=None
else:
self.pil_image=PIL.Image.open(bullet)
if self.pil_image<>None:
self.pil_image=self.pil_image.resize((self.icon_width-2,self.icon_height-2))
image_id=PIL.ImageTk.PhotoImage(self.pil_image)
self.canvas.create_image(self.icon_x_left+1, self.icon_y_top+1,
image=image_id, anchor=NW,
tag='pp-content')
else:
image_id=None
return image_id
#display the text of a menu entry
def display_icon_text(self):
text_mode=self.show_params['menu-text-mode']
if self.show_params['menu-icon-mode'] in ('thumbnail','bullet'):
if text_mode=='right':
if self.icon_height>self.text_height:
text_y_top=self.entry_y+abs(self.icon_height-self.text_height)/2
else:
text_y_top=self.entry_y
text_y_bottom=text_y_top+self.text_height
text_x_left=self.icon_x_right+self.menu_horizontal_padding
text_x_right=text_x_left+self.text_width
text_x=text_x_left
text_y=text_y_top+(self.text_height/2)
elif text_mode=='below':
text_y_top=self.icon_y_bottom+self.menu_vertical_padding
text_y_bottom=text_y_top+self.text_height
if self.icon_width>self.text_width:
text_x_left=self.entry_x+abs(self.icon_width-self.text_width)/2
else:
text_x_left=self.entry_x
text_x_right=text_x_left+self.text_width
text_x=text_x_left+(self.text_width/2)
text_y=text_y_top
else:
# icon with text_mode=overlay or none
text_x_left=self.icon_x_left
text_x_right= self.icon_x_right
text_y_top=self.icon_y_top
text_y_bottom=self.icon_y_bottom
text_x=(text_x_left+text_x_right)/2
text_y=(text_y_top+text_y_bottom)/2
else:
#no icon text only
text_y_top=self.entry_y
text_y_bottom=text_y_top+self.text_height
text_x_left=self.entry_x
text_x_right=text_x_left+self.text_width
text_x=self.entry_x
text_y=self.entry_y+self.text_height/2
#display the guidelines for debugging
if self.display_guidelines=='always':
points=[text_x_left,text_y_top,text_x_right,text_y_top,text_x_right,text_y_bottom,text_x_left,text_y_bottom]
self.canvas.create_polygon(points,fill= '' ,
outline='white',
tag='pp-content')
# display the text
if text_mode=='below' and self.show_params['menu-icon-mode'] in ('thumbnail','bullet'):
anchor=N
justify=CENTER
elif text_mode=='overlay' and self.show_params['menu-icon-mode'] in ('thumbnail','bullet'):
anchor=CENTER
justify=CENTER
else:
anchor=W
justify=LEFT
text_id=self.canvas.create_text(text_x,text_y,
text=self.medialist.selected_track()['title'],
anchor=anchor,
fill=self.show_params['entry-colour'],
font=self.show_params['entry-font'],
width=self.text_width,
justify=justify,
tag='pp-content')
return text_id
def highlight_menu_entry(self,index,state):
if self.show_params['menu-icon-mode']<>'none':
if state==True:
self.canvas.itemconfig(self.menu_entry_id[index][self.icon_id_index],
outline=self.show_params['entry-select-colour'],
width=4,
)
else:
self.canvas.itemconfig(self.menu_entry_id[index][self.icon_id_index],
outline='',
width=1
)
else:
if state==True:
self.canvas.itemconfig(self.menu_entry_id[index][self.text_id_index],
fill=self.show_params['entry-select-colour'])
else:
self.canvas.itemconfig(self.menu_entry_id[index][self.text_id_index],
fill=self.show_params['entry-colour'])
def display_eggtimer(self,text):
# print "display eggtimer"
self.canvas.create_text(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
text= text,
fill='white',
font="Helvetica 20 bold",
tag='pp-eggtimer')
self.canvas.update_idletasks( )
def delete_eggtimer(self):
# print"delete eggtimer"
self.canvas.delete('pp-eggtimer')
self.canvas.update_idletasks( )
# *********************
# utilities
# *********************
def complete_path(self,track_file):
# complete path of the filename of the selected entry
if track_file<>'' and track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
return track_file
def parse_menu_window(self,line):
if line<>'':
fields = line.split()
if len(fields) not in (1, 2,4):
return 'error','wrong number of fields',0,0,0,0
if len(fields)==1:
if fields[0]=='fullscreen':
return 'normal','',0,0,self.screen_width - 1, self.screen_height - 1
else:
return 'error','single field is not fullscreen',0,0,0,0
if len(fields)==2:
if fields[0].isdigit() and fields[1].isdigit():
return 'normal','',int(fields[0]),int(fields[1]),self.screen_width, self.screen_height
else:
return 'error','field is not a digit',0,0,0,0
if len(fields)==4:
if fields[0].isdigit() and fields[1].isdigit() and fields[2].isdigit() and fields[3].isdigit():
return 'normal','',int(fields[0]),int(fields[1]),int(fields[2]),int(fields[3])
else:
return 'error','field is not a digit',0,0,0,0
else:
return 'error','line is blank',0,0,0,0
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
# timers may be running so need terminate
self.terminate("error")
else:
return value
class PPIO:
"""
PPIO provides some IO facilties for Pi presents
- configures GPIO pins from data in gpio.cfg
- reads and debounces inputs pins, provides callbacks on state changes which are used to trigger mediashows
- for output pins allows players to put events, which request the change of state of pins, into a queue. Events are executed at the required time.
"""
# constants for buttons
# cofiguration from gpio.cfg
PIN = 0 # pin on RPi board GPIO connector e.g. P1-11
DIRECTION = 1 # IN/OUT/NONE (None is not used)
NAME = 2 # name for output
RISING_NAME = 3 # name for rising edge callback
FALLING_NAME = 4 # name ofr falling edge callback
ONE_NAME = 5 # name for one state callback
ZERO_NAME = 6 # name for zero state callback
REPEAT = 7 #reperat interval for state callbacks (mS)
THRESHOLD = 8 # threshold of debounce count for state change to be considered
PULL = 9 # pull up or down or none
# dynamic data
COUNT = 10 # variable - count of the number of times the input has been 0 (limited to threshold)
PRESSED = 11 # variable - debounced state
LAST = 12 # varible - last state - used to detect edge
REPEAT_COUNT = 13
TEMPLATE = [
'', #pin
'', # direction
'', #name
'',
'',
'',
'', #input names
0, # repeat
0, #threshold
'', #pull
0,
False,
False,
0
] #dynamics
PINLIST = ('P1-03', 'P1-05', 'P1-07', 'P1-08', 'P1-10', 'P1-11', 'P1-12',
'P1-13', 'P1-15', 'P1-16', 'P1-18', 'P1-19', 'P1-21', 'P1-22',
'P1-23', 'P1-24', 'P1-26')
# index of shutdown pin
SHUTDOWN_INDEX = 0
# constants for sequencer
SEQUENCER_PIN = 0 # GPIO pin number, the xx in P1-xx
SEQUENCER_TO_STATE = 1 # False = off , True =on
SEQUENCER_TIME = 2 # time since the epoch in seconds
SEQUENCER_TAG = 3 # tag used to delete all matching event, usually a track reference.
# CLASS VARIABLES
events = []
pins = []
last_poll_time = 0
options = None
# gpio_enabled=False
EVENT_TEMPLATE = [0, False, 0, None]
#executed by main program and by each object using gpio
def __init__(self):
self.mon = Monitor()
self.mon.on()
self.options = command_options()
# executed once from main program
def init(self,
pp_dir,
pp_home,
pp_profile,
widget,
button_tick,
callback=None):
# instantiate arguments
self.widget = widget
self.pp_dir = pp_dir
self.pp_profile = pp_profile
self.pp_home = pp_home
self.button_tick = button_tick
self.callback = callback
PPIO.SHUTDOWN_INDEX = 0
# read gpio.cfg file.
if self.read(self.pp_dir, self.pp_home, self.pp_profile) == False:
return False
import RPi.GPIO as GPIO
self.GPIO = GPIO
#construct the GPIO control list from the configuration
for index, pin_def in enumerate(PPIO.PINLIST):
pin = copy.deepcopy(PPIO.TEMPLATE)
pin_bits = pin_def.split('-')
pin_num = pin_bits[1:]
pin[PPIO.PIN] = int(pin_num[0])
if self.config.has_section(pin_def) == False:
self.mon.log(self, "no pin definition for " + pin_def)
pin[PPIO.DIRECTION] = 'None'
else:
# unused pin
if self.config.get(pin_def, 'direction') == 'none':
pin[PPIO.DIRECTION] = 'none'
else:
pin[PPIO.DIRECTION] = self.config.get(pin_def, 'direction')
if pin[PPIO.DIRECTION] == 'in':
# input pin
pin[PPIO.RISING_NAME] = self.config.get(
pin_def, 'rising-name')
pin[PPIO.FALLING_NAME] = self.config.get(
pin_def, 'falling-name')
pin[PPIO.ONE_NAME] = self.config.get(
pin_def, 'one-name')
pin[PPIO.ZERO_NAME] = self.config.get(
pin_def, 'zero-name')
if pin[PPIO.FALLING_NAME] == 'pp-shutdown':
PPIO.SHUTDOWN_INDEX = index
if self.config.get(pin_def, 'repeat') <> '':
pin[PPIO.REPEAT] = int(
self.config.get(pin_def, 'repeat'))
else:
pin[PPIO.REPEAT] = -1
pin[PPIO.THRESHOLD] = int(
self.config.get(pin_def, 'threshold'))
if self.config.get(pin_def, 'pull-up-down') == 'up':
pin[PPIO.PULL] = GPIO.PUD_UP
elif self.config.get(pin_def,
'pull-up-down') == 'down':
pin[PPIO.PULL] = GPIO.PUD_DOWN
else:
pin[PPIO.PULL] = GPIO.PUD_OFF
else:
# output pin
pin[PPIO.NAME] = self.config.get(pin_def, 'name')
# print pin
PPIO.pins.append(copy.deepcopy(pin))
# setup GPIO
self.GPIO.setwarnings(False)
self.GPIO.setmode(self.GPIO.BOARD)
# set up the GPIO inputs and outputs
for index, pin in enumerate(PPIO.pins):
num = pin[PPIO.PIN]
if pin[PPIO.DIRECTION] == 'in':
self.GPIO.setup(num, self.GPIO.IN, pull_up_down=pin[PPIO.PULL])
elif pin[PPIO.DIRECTION] == 'out':
self.GPIO.setup(num, self.GPIO.OUT)
self.GPIO.setup(num, False)
self.reset_inputs()
PPIO.gpio_enabled = True
#init timer
self.button_tick_timer = None
PPIO.last_scheduler_time = long(time.time())
return True
# called by main program only
def poll(self):
# look at the buttons
self.do_buttons()
# kick off output pin sequencer
poll_time = long(time.time())
# is current time greater than last time the sceduler was run (previous second or more)
# run in a loop to catch up because root.after can get behind when images are being rendered etc.
while PPIO.last_scheduler_time <= poll_time:
self.do_sequencer(PPIO.last_scheduler_time)
PPIO.last_scheduler_time += 1
# and loop
self.button_tick_timer = self.widget.after(self.button_tick, self.poll)
# called by main program only
def terminate(self):
if self.button_tick_timer <> None:
self.widget.after_cancel(self.button_tick_timer)
self.clear_events_list(None)
self.reset_outputs()
self.GPIO.cleanup()
# ************************************************
# gpio input functions
# called by main program only
# ************************************************
def reset_inputs(self):
for pin in PPIO.pins:
pin[PPIO.COUNT] = 0
pin[PPIO.PRESSED] == False
pin[PPIO.LAST] == False
pin[PPIO.REPEAT_COUNT] = pin[PPIO.REPEAT]
# index is of the pins array, provided by the callback ***** needs to be name
def shutdown_pressed(self):
if PPIO.SHUTDOWN_INDEX <> 0:
return PPIO.pins[PPIO.SHUTDOWN_INDEX][PPIO.PRESSED]
else:
return False
def do_buttons(self):
for index, pin in enumerate(PPIO.pins):
if pin[PPIO.DIRECTION] == 'in':
# debounce
if self.GPIO.input(pin[PPIO.PIN]) == 0:
if pin[PPIO.COUNT] < pin[PPIO.THRESHOLD]:
pin[PPIO.COUNT] += 1
if pin[PPIO.COUNT] == pin[PPIO.THRESHOLD]:
pin[PPIO.PRESSED] = True
else: # input us 1
if pin[PPIO.COUNT] > 0:
pin[PPIO.COUNT] -= 1
if pin[PPIO.COUNT] == 0:
pin[PPIO.PRESSED] = False
#detect edges
# falling edge
if pin[PPIO.PRESSED] == True and pin[PPIO.LAST] == False:
pin[PPIO.LAST] = pin[PPIO.PRESSED]
pin[PPIO.REPEAT_COUNT] = pin[PPIO.REPEAT]
if pin[PPIO.FALLING_NAME] <> '' and self.callback <> None:
self.callback(index, pin[PPIO.FALLING_NAME], "falling")
#rising edge
if pin[PPIO.PRESSED] == False and pin[PPIO.LAST] == True:
pin[PPIO.LAST] = pin[PPIO.PRESSED]
pin[PPIO.REPEAT_COUNT] = pin[PPIO.REPEAT]
if pin[PPIO.RISING_NAME] <> '' and self.callback <> None:
self.callback(index, pin[PPIO.RISING_NAME], "rising")
# do state callbacks
if pin[PPIO.REPEAT_COUNT] == 0:
if pin[PPIO.ZERO_NAME] <> '' and pin[
PPIO.PRESSED] == True and self.callback <> None:
self.callback(index, pin[PPIO.ZERO_NAME], "zero")
if pin[PPIO.ONE_NAME] <> '' and pin[
PPIO.PRESSED] == False and self.callback <> None:
self.callback(index, pin[PPIO.ONE_NAME], "zero")
pin[PPIO.REPEAT_COUNT] = pin[PPIO.REPEAT]
else:
if pin[PPIO.REPEAT] <> -1:
pin[PPIO.REPEAT_COUNT] -= 1
# ************************************************
# gpio output sequencer functions
# ************************************************
# execute events at the appropriate time and remove from list (runs from main program only)
# runs through list a number of times because of problems with pop messing up list
def do_sequencer(self, schedule_time):
# print 'sequencer run for: ' + str(schedule_time) + ' at ' + str(long(time.time()))
while True:
event_found = False
for index, item in enumerate(PPIO.events):
if item[PPIO.SEQUENCER_TIME] <= schedule_time:
event = PPIO.events.pop(index)
event_found = True
self.do_event(event[PPIO.SEQUENCER_PIN],
event[PPIO.SEQUENCER_TO_STATE],
item[PPIO.SEQUENCER_TIME])
break
if event_found == False: break
# execute an event
def do_event(self, pin, to_state, req_time):
self.mon.log(
self,
'pin P1-' + str(pin) + ' set ' + str(to_state) + ' required: ' +
str(req_time) + ' actual: ' + str(long(time.time())))
# print 'pin P1-'+ str(pin)+ ' set '+ str(to_state) + ' required: ' + str(req_time)+ ' actual: ' + str(long(time.time()))
self.GPIO.output(pin, to_state)
# ************************************************
# gpio output sequencer interface methods
# these can be called from many classes so need to operate on class variables
# ************************************************
def animate(self, text, tag):
if self.options['gpio'] == True:
lines = text.split("\n")
for line in lines:
error_text = self.parse_animate_fields(line, tag)
if error_text <> '':
return 'error', error_text
return 'normal', ''
return 'normal', ''
# clear event list
def clear_events_list(self, tag):
if self.options['gpio'] == True:
self.mon.log(self, 'clear events list ')
# empty event list
if tag == None:
PPIO.events = []
else:
self.remove_events(tag)
def reset_outputs(self):
if self.options['gpio'] == True:
self.mon.log(self, 'reset outputs')
for index, pin in enumerate(PPIO.pins):
num = pin[PPIO.PIN]
if pin[PPIO.DIRECTION] == 'out':
self.GPIO.output(num, False)
# ************************************************
# internal functions
# these can be called from many classes so need to operate on class variables
# ************************************************
def parse_animate_fields(self, line, tag):
fields = line.split()
if len(fields) == 0:
return ''
name = fields[0]
pin = self.pin_of(name)
if pin == -1:
return 'Unknown gpio logical output in: ' + line
to_state_text = fields[1]
if not (to_state_text in ('on', 'off')):
return 'Illegal to-state in : ' + line
if to_state_text == 'on':
to_state = True
else:
to_state = False
if len(fields) == 2:
delay_text = '0'
else:
delay_text = fields[2]
if not delay_text.isdigit():
return 'Delay is not an integer in : ' + line
delay = int(delay_text)
self.add_event(pin, to_state, delay, tag)
# self.print_events()
return ''
def pin_of(self, name):
for pin in PPIO.pins:
# print " in list" + pin[PPIO.NAME] + str(pin[PPIO.PIN] )
if pin[PPIO.NAME] == name and pin[PPIO.DIRECTION] == 'out':
return pin[PPIO.PIN]
return -1
def print_events(self):
print
for i in PPIO.events:
print i
def add_event(self, sequencer_pin, sequencer_to_state, sequencer_time,
sequencer_tag):
poll_time = long(time.time())
# delay is 0 so just do it, don't queue it.
#if sequencer_time == 0:
#print "firing now",poll_time
#self.do_event(sequencer_pin,sequencer_to_state,poll_time)
#return
# prepare the event
event = PPIO.EVENT_TEMPLATE
event[PPIO.SEQUENCER_PIN] = sequencer_pin
event[PPIO.SEQUENCER_TO_STATE] = sequencer_to_state
event[PPIO.SEQUENCER_TIME] = sequencer_time + poll_time + 1
event[PPIO.SEQUENCER_TAG] = sequencer_tag
# print event
# find the place in the events list and insert
# first item in the list is earliest, if two have the same time then last to be added is fired last.
abs_time = sequencer_time + poll_time
copy_event = copy.deepcopy(event)
for index, item in enumerate(PPIO.events):
if abs_time < item[PPIO.SEQUENCER_TIME]:
PPIO.events.insert(index, copy_event)
return copy_event
PPIO.events.append(copy_event)
return copy_event
# remove an event not used and does not work
def remove_event(self, event):
for index, item in enumerate(PPIO.events):
if event == item:
del PPIO.events[index]
return True
return False
# remove all the events with the same tag, usually a track reference
def remove_events(self, tag):
left = []
for item in PPIO.events:
if tag <> item[PPIO.SEQUENCER_TAG]:
left.append(item)
PPIO.events = left
#self.print_events()
# ***********************************
# reading gpio.cfg functions
# ************************************
def read(self, pp_dir, pp_home, pp_profile):
# try inside profile
tryfile = pp_profile + os.sep + "gpio.cfg"
# self.mon.log(self,"Trying gpio.cfg in profile at: "+ tryfile)
if os.path.exists(tryfile):
filename = tryfile
else:
# try inside pp_home
# self.mon.log(self,"gpio.cfg not found at "+ tryfile+ " trying pp_home")
tryfile = pp_home + os.sep + "gpio.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
# try inside pipresents
# self.mon.log(self,"gpio.cfg not found at "+ tryfile + " trying inside pipresents")
tryfile = pp_dir + os.sep + 'pp_home' + os.sep + "gpio.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
self.mon.log(self, "gpio.cfg not found at " + tryfile)
self.mon.err(self, "gpio.cfg not found")
return False
self.config = ConfigParser.ConfigParser()
self.config.read(filename)
self.mon.log(self, "gpio.cfg read from " + filename)
return True
class TimeOfDay:
# add to a list of times with
# time, show id, callback (should go to the calling show I think)
# cancel events with specific tag
# remove a specific event
#terminate tod
#keep time ticker one second tick time
# do callback when time is reached 24 hour clock, just rotates
# needs ticker to run from main program but events to be added/cancelled from a number of instances.
#Its the sequemcer in reverse.
# CLASS VARIABLES
# fields of the times list
TIME=0 # time at which trigger is to be generated - seconds from midnight
TAG=1 # tag used to delete all matching events, usually a show reference.
CALLBACK = 2 # instance of function to call when event is detected
SOURCE = 3 # source text
QUIET = 4 # whether the next show time should be displayed True,false
TEMPLATE = [0,'',None,'',False]
times=[] #list of times of day used to generate callbacks, earliest first
last_scheduler_time=long(time.time())
now_seconds=0
#executed by main program and by each object using tod
def __init__(self):
self.mon=Monitor()
self.mon.on()
# executed once from main program
def init(self,pp_dir,pp_home,widget,tod_tick):
# instantiate arguments
TimeOfDay.widget=widget
self.pp_dir=pp_dir
self.pp_home=pp_home
self.tod_tick=tod_tick
#init variables
self.tick_timer=None
TimeOfDay.last_poll_time=long(time.time())
midnight = datetime.datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
now =datetime.datetime.now()
TimeOfDay.delta=(now-midnight)
TimeOfDay.now_seconds= TimeOfDay.delta.seconds
# called by main program only
def poll(self):
poll_time=long(time.time())
# is current time greater than last time the sceduler was run
# run in a loop to catch up because root.after can get behind when images are being rendered etc.
while poll_time>TimeOfDay.last_scheduler_time:
self.do_scheduler(poll_time - TimeOfDay.last_scheduler_time)
TimeOfDay.last_scheduler_time +=1
# and loop
self.tick_timer=TimeOfDay.widget.after(self.tod_tick,self.poll)
# called by main program only
def terminate(self):
if self.tick_timer<>None:
TimeOfDay.widget.after_cancel(self.tick_timer)
self.clear_times_list(None)
# execute events at the appropriate time.
# called by main program only
def do_scheduler(self,diff):
midnight = datetime.datetime.now().replace(hour=0, minute=0, second=0, microsecond=0)
now =datetime.datetime.now()
TimeOfDay.delta=(now-midnight)
TimeOfDay.now_seconds= TimeOfDay.delta.seconds-diff
TimeOfDay.synced=True
# print 'scheduler time', TimeOfDay.now_seconds, ' diff ', diff
for index, item in enumerate(TimeOfDay.times):
# print item[TimeOfDay.TIME]
if item[TimeOfDay.TIME]==TimeOfDay.now_seconds:
# print 'event fired'
self.do_event(item)
# execute an event
def do_event(self,event):
self.mon.log (self,'Event : ' + str(event[TimeOfDay.TIME])+' '+ str(event[TimeOfDay.TAG]) + ' at ' +datetime.datetime.now().ctime())
# print 'Event : ' + str(event[TimeOfDay.TIME])+' '+ str(event[TimeOfDay.TAG]) + ' at ' +datetime.datetime.now().ctime()
event[TimeOfDay.CALLBACK]()
def next_event_time(self):
#look for next event
for index, item in enumerate(TimeOfDay.times):
# print 'trying ',item[TimeOfDay.SOURCE]
if TimeOfDay.now_seconds < item[TimeOfDay.TIME]:
break
else:
return [TimeOfDay.times[0][TimeOfDay.SOURCE],'tomorrow',TimeOfDay.times[0][TimeOfDay.TAG],TimeOfDay.times[0][TimeOfDay.QUIET]]
return [item[TimeOfDay.SOURCE],'',item[TimeOfDay.TAG],item[TimeOfDay.QUIET]]
#
# ************************************************
# The methods below can be called from many classes so need to operate on class variables
# ************************************************
def add_times(self,text,tag,callback,quiet_text):
if quiet_text=='time-quiet':
quiet=True
else:
quiet=False
lines = text.split("\n")
for line in lines:
error_text=self.parse_tod_fields(line,tag,callback,quiet)
if error_text <>'':
return error_text
# print TimeOfDay.times
return ''
def parse_tod_fields(self,line,tag,callback,quiet):
fields = line.split()
if len(fields)==0:
return ''
for field in fields:
self.parse_event_text(field,tag,callback,quiet)
return ''
def parse_event_text(self,time_text,tag,callback,quiet):
if time_text[0]=='+':
seconds=TimeOfDay.now_seconds+int(time_text.lstrip('+'))
else:
fields=time_text.split(':')
if len(fields)>2:
secs=int(fields[2])
else:
secs=0
seconds=int(fields[0])*3600+int(fields[1])*60+secs
self.add_event(seconds,tag,callback,time_text,quiet)
def add_event(self,seconds,tag,callback,source,quiet):
# seconds since midnight is integer
# find the place in the list and insert
# first item in the list is earliest, if two have the same time then last to be added is fired last.
for index, item in enumerate(TimeOfDay.times):
if seconds<item[TimeOfDay.TIME]:
TimeOfDay.times.insert(index,copy.deepcopy(TimeOfDay.TEMPLATE))
break
else:
TimeOfDay.times.append(copy.deepcopy(TimeOfDay.TEMPLATE))
index=len(TimeOfDay.times)-1
TimeOfDay.times[index][TimeOfDay.CALLBACK]=callback
TimeOfDay.times[index][TimeOfDay.TIME]=seconds
TimeOfDay.times[index][TimeOfDay.TAG]=tag
TimeOfDay.times[index][TimeOfDay.SOURCE]=source
TimeOfDay.times[index][TimeOfDay.QUIET]=quiet
self.mon.log (self,'create time of day event ' + source + ' for show '+str(tag) + ' ' + str(quiet))
# self.print_times()
return TimeOfDay.times[index]
def print_times(self):
print
for i in TimeOfDay.times:
print i
# remove an event
def remove_event(self,event):
for index, item in enumerate(PPIO.events):
if event==item:
del PPIO.events[index]
return True
return False
#clear times list
def clear_times_list(self,tag):
self.mon.log(self,'clear time of day list ' + str(tag))
# empty event list
if tag==None:
TimeOfDay.events=[]
else:
self.remove_events(tag)
# remove all the events with the same tag, usually a show reference
def remove_events(self,tag):
left=[]
for item in TimeOfDay.times:
if tag<>item[TimeOfDay.TAG]:
left.append(item)
TimeOfDay.times= left
class LiveShow:
NEW_TRACKS = {
'image': {
'title': 'New Image',
'track-ref': '',
'type': 'image',
'location': '',
'duration': '',
'transition': '',
'track-text': '',
'track-text-font': '',
'track-text-colour': '',
'track-text-x': '0',
'track-text-y': '0'
},
'video': {
'title': 'New Video',
'track-ref': '',
'type': 'video',
'location': '',
'omx-audio': ''
}
}
IMAGE_FILES = ('.gif', '.jpg', '.jpeg', '.bmp', '.png', '.tif')
VIDEO_FILES = ('.mp4', '.mkv', '.avi', '.mp2', '.wmv')
AUDIO_FILES = ('.mp3', '.wav', '.ogg')
# *******************
# External interface
# ********************
def __init__(self, show, canvas, showlist, pp_home, pp_profile):
""" canvas - the canvas that the show is to be written on
showlist - used jus to check the issue of medialist against showlist
show - the dictionary for the show to be played
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon = Monitor()
self.mon.on()
#instantiate arguments
self.show = show
self.showlist = showlist
self.canvas = canvas
self.pp_home = pp_home
self.pp_profile = pp_profile
# open resources
self.rr = ResourceReader()
# Init variables
self.player = None
self.shower = None
self._end_liveshow_signal = False
self._play_child_signal = False
self.error = False
self._livelist = None
self._new_livelist = None
def play(self,
end_callback,
ready_callback=None,
top=False,
command='nil'):
""" displays the liveshow
end_callback - function to be called when the liveshow exits
ready_callback - callback when liveshow is ready to display
top is True when the show is top level (i.e. run from start show)
"""
#instantiate the arguments
self._end_callback = end_callback
self._ready_callback = ready_callback
self.top = top
self.mon.log(self, "Starting show: " + self.show['show-ref'])
# check data files are available.
self.media_file = self.pp_profile + os.sep + self.show['medialist']
if not os.path.exists(self.media_file):
self.mon.err(self, "Medialist file not found: " + self.media_file)
self._stop("Medialist file not found")
self.options = command_options()
self._pp_live_dir1 = self.pp_home + os.sep + 'pp_live_tracks'
if not os.path.exists(self._pp_live_dir1):
os.mkdir(self._pp_live_dir1)
self._pp_live_dir2 = ''
if self.options['liveshow'] <> "":
self._pp_live_dir2 = self.options['liveshow']
if not os.path.exists(self._pp_live_dir2):
self.mon.err(
self,
"live tracks directory not found " + self._pp_live_dir2)
self._end('error', "live tracks directory not found")
#create a medialist for the liveshow and read it.
# it should be empty of anonymous tracks but read it to check its version.
self.medialist = MediaList()
if self.medialist.open_list(self.media_file,
self.showlist.sissue()) == False:
self.mon.err(self, "Version of medialist different to Pi Presents")
self._end('error', "Version of medialist different to Pi Presents")
if self.ready_callback <> None:
self.ready_callback()
self._play_first_track()
# respond to key presses.
def key_pressed(self, key_name):
self.mon.log(self, "received key: " + key_name)
if key_name == '':
pass
elif key_name == 'escape':
# if next lower show eor player is running pass down to stop the show/track
# ELSE stop this show except for exceptions
if self.shower <> None:
self.shower.key_pressed(key_name)
elif self.player <> None:
self.player.key_pressed(key_name)
else:
# not at top so stop the show
if self.top == False:
self._stop("exit show to higher level")
else:
pass
elif key_name in ('up', 'down'):
# if child or sub-show is running and is a show pass to show, track does not use up/down
if self.shower <> None:
self.shower.key_pressed(key_name)
elif key_name == 'return':
# if child show or sub-show is running and is show - pass down
# ELSE use Return to start child
if self.shower <> None:
self.shower.key_pressed(key_name)
else:
if self.show['has-child'] == "yes":
self._play_child()
elif key_name in ('p', ' '):
# pass down if show or track running.
if self.shower <> None:
self.shower.key_pressed(key_name)
elif self.player <> None:
self.player.key_pressed(key_name)
def button_pressed(self, button, edge):
if button == 'play': self.key_pressed("return")
elif button == 'up': self.key_pressed("up")
elif button == 'down': self.key_pressed("down")
elif button == 'stop': self.key_pressed("escape")
elif button == 'pause': self.key_pressed('p')
# kill or error
def terminate(self, reason):
if self.shower <> None:
self.mon.log(self, "sent terminate to shower")
self.shower.terminate(reason)
elif self.player <> None:
self.mon.log(self, "sent terminate to player")
self.player.terminate(reason)
else:
self._end(reason,
'terminated without terminating shower or player')
def _tidy_up(self):
pass
def resource(self, section, item):
value = self.rr.get(section, item)
if value == False:
self.mon.err(self,
"resource: " + section + ': ' + item + " not found")
self.terminate("error", 'Cannot find resource')
else:
return value
# ***************************
# Respond to key/button presses
# ***************************
def _stop(self, message):
self._end_liveshow_signal = True
def _play_child(self):
self._play_child_signal = True
if self.player <> None:
self.player.key_pressed("escape")
# ***************************
# end of show functions
# ***************************
def _end(self, reason, message):
self._end_liveshow_signal = False
self.mon.log(self, "Ending Liveshow: " + self.show['show-ref'])
self._tidy_up()
self._end_callback(reason, message)
self = None
return
def _nend(self):
self._end('normal', 'end from state machine')
# ***************************
# Livelist
# ***************************
def _livelist_add_track(self, afile):
(root, title) = os.path.split(afile)
(root, ext) = os.path.splitext(afile)
if ext.lower() in LiveShow.IMAGE_FILES:
self._livelist_new_track(LiveShow.NEW_TRACKS['image'], {
'title': title,
'track-ref': '',
'location': afile
})
if ext.lower() in LiveShow.VIDEO_FILES:
self._livelist_new_track(LiveShow.NEW_TRACKS['video'], {
'title': title,
'track-ref': '',
'location': afile
})
if ext.lower() in LiveShow.AUDIO_FILES:
self._livelist_new_track(LiveShow.NEW_TRACKS['video'], {
'title': title,
'track-ref': '',
'location': afile
})
def _livelist_new_track(self, fields, values):
new_track = fields
self._new_livelist.append(copy.deepcopy(new_track))
last = len(self._new_livelist) - 1
self._new_livelist[last].update(values)
def _new_livelist_create(self):
self._new_livelist = []
if os.path.exists(self._pp_live_dir1):
for file in os.listdir(self._pp_live_dir1):
file = self._pp_live_dir1 + os.sep + file
(root_file, ext_file) = os.path.splitext(file)
if ext_file.lower(
) in LiveShow.IMAGE_FILES + LiveShow.VIDEO_FILES + LiveShow.AUDIO_FILES:
self._livelist_add_track(file)
if os.path.exists(self._pp_live_dir2):
for file in os.listdir(self._pp_live_dir2):
file = self._pp_live_dir2 + os.sep + file
(root_file, ext_file) = os.path.splitext(file)
if ext_file.lower(
) in LiveShow.IMAGE_FILES + LiveShow.VIDEO_FILES + LiveShow.AUDIO_FILES:
self._livelist_add_track(file)
self._new_livelist = sorted(
self._new_livelist,
key=lambda track: os.path.basename(track['location']).lower())
# for it in self._new_livelist:
# print it['location']
# print ''
def _livelist_replace_if_changed(self):
self._new_livelist_create()
if self._new_livelist <> self._livelist:
self._livelist = copy.deepcopy(self._new_livelist)
self._livelist_index = 0
def _livelist_next(self):
if self._livelist_index == len(self._livelist) - 1:
self._livelist_index = 0
else:
self._livelist_index += 1
# ***************************
# Play Loop
# ***************************
def _play_first_track(self):
self._new_livelist_create()
self._livelist = copy.deepcopy(self._new_livelist)
self._livelist_index = 0
self._play_track()
def _play_track(self):
self._livelist_replace_if_changed()
if len(self._livelist) > 0:
self._play_selected_track(self._livelist[self._livelist_index])
else:
self.display_message(self.canvas, None,
self.resource('liveshow', 'm01'), 5,
self._what_next)
def _what_next(self):
# user wants to end
if self._end_liveshow_signal == True:
self._end_liveshow_signal = False
self._end('normal', "show ended by user")
# play child?
elif self._play_child_signal == True:
self._play_child_signal = False
index = self.medialist.index_of_track('pp-child-show')
if index >= 0:
#don't select the track as need to preserve mediashow sequence.
child_track = self.medialist.track(index)
self._display_eggtimer(self.resource('liveshow', 'm02'))
self._play_selected_track(child_track)
else:
self.mon.err(
self, "Child show not found in medialist: " +
self.show['pp-child-show'])
self._end('error', "child show not found in medialist")
# otherwise loop to next track
else:
self._livelist_next()
self._play_track()
# ***************************
# Dispatching to Players/Shows
# ***************************
# used to display internal messages in situations where a medialist entry could not be used.
def display_message(self, canvas, source, content, duration,
_display_message_callback):
self._display_message_callback = _display_message_callback
tp = {
'duration': duration,
'message-colour': 'white',
'message-font': 'Helvetica 20 bold'
}
self.player = MessagePlayer(canvas, tp, tp)
self.player.play(content, self._display_message_end, None)
def _display_message_end(self, reason, message):
self.player = None
if reason in ("killed", 'error'):
self._end(reason, message)
else:
self._display_message_callback()
def complete_path(self, selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file[0] == "+":
track_file = self.pp_home + track_file[1:]
self.mon.log(self, "Track to play is: " + track_file)
return track_file
def _play_selected_track(self, selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected_track is a dictionary for the track/show
"""
# self.canvas.delete(ALL)
# is menu required
if self.show['has-child'] == "yes":
enable_child = True
else:
enable_child = False
#dispatch track by type
self.player = None
self.shower = None
track_type = selected_track['type']
self.mon.log(self, "Track type is: " + track_type)
if track_type == "image":
track_file = self.complete_path(selected_track)
# images played from menus don't have children
self.player = ImagePlayer(self.canvas, self.show, selected_track)
self.player.play(track_file,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "video":
# create a videoplayer
track_file = self.complete_path(selected_track)
self.player = VideoPlayer(self.canvas, self.show, selected_track)
self.player.play(track_file,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >= 0:
self.showlist.select(index)
selected_show = self.showlist.selected_show()
else:
self.mon.err(
self, "Show not found in showlist: " +
selected_track['sub-show'])
self._stop("Unknown show")
if selected_show['type'] == "mediashow":
self.shower = MediaShow(selected_show, self.canvas,
self.showlist, self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower, top=False, command='nil')
elif selected_show['type'] == "menu":
self.shower = MenuShow(selected_show, self.canvas,
self.showlist, self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower, top=False, command='nil')
else:
self.mon.err(self,
"Unknown Show Type: " + selected_show['type'])
self._stop("Unknown show type")
else:
self.mon.err(self, "Unknown Track Type: " + track_type)
self._stop("Unknown track type")
def ready_callback(self):
self._delete_eggtimer()
def end_player(self, reason, message):
self.mon.log(self, "Returned from player with message: " + message)
self.player = None
if reason in ("killed", "error"):
self._end(reason, message)
else:
self._what_next()
def end_shower(self, reason, message):
self.mon.log(self, "Returned from shower with message: " + message)
self.shower = None
if reason in ("killed", "error"):
self._end(reason, message)
else:
self._what_next()
def _display_eggtimer(self, text):
self.canvas.create_text(int(self.canvas['width']) / 2,
int(self.canvas['height']) / 2,
text=text,
fill='white',
font="Helvetica 20 bold")
self.canvas.update_idletasks()
def _delete_eggtimer(self):
self.canvas.delete(ALL)
class BrowserPlayer:
#state constants
_CLOSED = "player_closed" #probably will not exist
_STARTING = "player_starting" #uzbl beinf loaded and fifo created
_WAITING = "wait for timeout" # waiting for browser to appear on the screen
_PLAYING = "player_playing" #track is playing to the screen
_ENDING = "player_ending" #track is in the process of ending due to quit or duration exceeded
# ***************************************
# EXTERNAL COMMANDS
# ***************************************
def __init__(self,
show_id,
root,
canvas,
show_params,
track_params,
pp_dir,
pp_home,
pp_profile):
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show_id=show_id
self.root=root,
self.canvas = canvas
self.show_params=show_params
self.track_params=track_params
self.pp_dir=pp_dir
self.pp_home=pp_home
self.pp_profile=pp_profile
# get duration limit (secs ) from profile
if self.track_params['duration']<>"":
self.duration= int(self.track_params['duration'])
else:
self.duration= int(self.show_params['duration'])
self.duration_limit=20*self.duration
# get background image from profile.
self.background_file=''
if self.track_params['background-image']<>"":
self.background_file= self.track_params['background-image']
else:
if self.track_params['display-show-background']=='yes':
self.background_file= self.show_params['background-image']
# get background colour from profile.
if self.track_params['background-colour']<>"":
self.background_colour= self.track_params['background-colour']
else:
self.background_colour= self.show_params['background-colour']
#get animation instructions from profile
self.animate_begin_text=self.track_params['animate-begin']
self.animate_end_text=self.track_params['animate-end']
# open the plugin Manager
self.pim=PluginManager(self.show_id,self.root,self.canvas,self.show_params,self.track_params,self.pp_dir,self.pp_home,self.pp_profile)
#create an instance of PPIO so we can create gpio events
self.ppio = PPIO()
# could put instance generation in play, not sure which is better.
self.bplayer=uzblDriver(self.canvas)
self.command_timer=None
self.tick_timer=None
self.init_play_state_machine()
def play(self, track,
showlist,
end_callback,
ready_callback,
enable_menu=False):
#instantiate arguments
self.track=track
self.showlist=showlist
self.end_callback=end_callback # callback when finished
self.ready_callback=ready_callback #callback when ready to play
self.enable_menu=enable_menu
# callback to the calling object to e.g remove egg timer.
if self.ready_callback<>None:
self.ready_callback()
# create an instance of showmanager so we can control concurrent shows
self.show_manager=ShowManager(self.show_id,self.showlist,self.show_params,self.root,self.canvas,self.pp_dir,self.pp_profile,self.pp_home)
#web window
if self.track_params['web-window']<>'':
self.web_window= self.track_params['web-window']
else:
self.web_window= self.show_params['web-window']
reason,message,command,has_window,x1,y1,x2,y2=self.parse_window(self.web_window)
if reason =='error':
self.mon.err(self,'web window error: '+' ' + message + ' in ' + self.web_window)
self.end_callback(reason,message)
self=None
else:
#deal with web_window
if has_window==False:
self.geometry = ' --geometry=maximized '
else:
width=x2-x1
height=y2-y1
self.geometry = "--geometry=%dx%d%+d%+d " % (width,height,x1,y1)
# get browser commands
reason,message=self.parse_commands(self.track_params['browser-commands'])
if reason != 'normal':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# Control other shows at beginning
reason,message=self.show_manager.show_control(self.track_params['show-control-begin'])
if reason == 'error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
#display content
reason,message=self.display_content()
if reason == 'error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# create animation events
reason,message=self.ppio.animate(self.animate_begin_text,id(self))
if reason=='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# start playing the track.
self.start_play_state_machine()
def terminate(self,reason):
"""
terminate the player in special circumstances
normal user termination if by key_pressed 'stop'
reason will be killed or error
"""
# circumvents state machine to terminate lower level and then itself.
if self.bplayer<>None:
self.mon.log(self,"sent terminate to uzbldriver")
self.bplayer.terminate(reason)
self.end('killed',' end without waiting for uzbl to finish') # end without waiting
else:
self.mon.log(self,"terminate, uzbldriver not running")
self.end('killed','terminate, uzbldriver not running')
def get_links(self):
return self.track_params['links']
def input_pressed(self,symbol):
# print symbol, symbol[0:5]
if symbol[0:5]=='uzbl-':
self.control(symbol[5:])
elif symbol == 'pause':
self.pause()
elif symbol=='stop':
self.stop()
# ***************************************
# INTERNAL FUNCTIONS
# ***************************************
#browser do not do pause
def pause(self):
self.mon.log(self,"!<pause rejected")
return False
# other control when playing, not currently used
def control(self,char):
if self.play_state==BrowserPlayer._PLAYING and char not in ('exit'):
self.mon.log(self,"> send control to uzbl:"+ char)
self.bplayer.control(char)
return True
else:
self.mon.log(self,"!<control rejected")
return False
# respond to normal stop
def stop(self):
# send signal to stop the track to the state machine
self.mon.log(self,">stop received")
self.quit_signal=True
# ***************************************
# sequencing
# ***************************************
"""self. play_state controls the playing sequence, it has the following values.
I am not entirely sure the starting and ending states are required.
- _closed - the mplayer process is not running, mplayer process can be initiated
- _starting - mplayer process is running but is not yet able to receive controls
- _playing - playing a track, controls can be sent
- _ending - mplayer is doing its termination, controls cannot be sent
"""
def init_play_state_machine(self):
self.quit_signal=False
self.play_state=BrowserPlayer._CLOSED
def start_play_state_machine(self):
#initialise all the state machine variables
self.duration_count = 0
self.quit_signal=False # signal that user has pressed stop
#play the track
self.bplayer.play(self.track,self.geometry)
self.mon.log (self,'Playing track from show Id: '+ str(self.show_id))
self.play_state=BrowserPlayer._STARTING
# and start polling for state changes and count duration
self.tick_timer=self.canvas.after(50, self.play_state_machine)
def play_state_machine(self):
if self.play_state == BrowserPlayer._CLOSED:
self.mon.log(self," State machine: " + self.play_state)
return
elif self.play_state == BrowserPlayer._STARTING:
# self.mon.log(self," State machine: " + self.play_state)
# if uzbl fifo is available can send comands to uzbl but change to wait state to wait for it to appear on screen
if self.bplayer.start_play_signal==True:
self.mon.log(self," <fifo available signal received from uzbl")
self.bplayer.start_play_signal=False
self.play_state=BrowserPlayer._WAITING
# get rid of status bar
self.bplayer.control('set show_status = 0')
# and get ready to wait for browser to appear
self.wait_count= 50 # 10 seconds at 200mS steps
self.mon.log(self," State machine: uzbl process alive")
self.tick_timer=self.canvas.after(200, self.play_state_machine)
elif self.play_state == BrowserPlayer._WAITING:
if self.wait_count==0:
# set state to playing
self.play_state = BrowserPlayer._PLAYING
# and start executing the browser commands
self.play_commands()
self.mon.log(self," State machine: uzbl_playing started")
self.wait_count -=1
self.tick_timer=self.canvas.after(200, self.play_state_machine)
elif self.play_state == BrowserPlayer._PLAYING:
self.duration_count+=1
# self.mon.log(self," State machine: " + self.play_state)
# service any queued stop signals and test duration count
if self.quit_signal==True or (self.duration_limit>0 and self.duration_count>self.duration_limit):
self.mon.log(self," Service stop required signal or timeout")
# self.quit_signal=False
self.stop_bplayer()
self.play_state = BrowserPlayer._ENDING
# uzbl reports it is terminating so change to ending state
if self.bplayer.end_play_signal:
self.mon.log(self," <end play signal received")
self.play_state = BrowserPlayer._ENDING
self.tick_timer=self.canvas.after(50, self.play_state_machine)
elif self.play_state == BrowserPlayer._ENDING:
# self.mon.log(self," State machine: " + self.play_state)
# if spawned process has closed can change to closed state
# self.mon.log (self," State machine : is luakit process running? - " + str(self.bplayer.is_running()))
if self.bplayer.is_running() ==False:
self.mon.log(self," <uzbl process is dead")
if self.quit_signal==True:
self.quit_signal=False
self.play_state = BrowserPlayer._CLOSED
self.end('normal','quit required or timeout')
else:
self.tick_timer=self.canvas.after(50, self.play_state_machine)
def stop_bplayer(self):
# send signal to stop the track to the state machine
self.mon.log(self," >send stop to uzbl driver")
if self.play_state==BrowserPlayer._PLAYING:
self.bplayer.stop()
return True
else:
self.mon.log(self,"!<stop rejected")
return False
# *****************
# ending the player
# *****************
def end(self,reason,message):
# stop the plugin
if self.pim<>None:
self.pim.stop_plugin()
# abort the timers
if self.tick_timer<>None:
self.canvas.after_cancel(self.tick_timer)
self.tick_timer=None
if self.command_timer<>None:
self.canvas.after_cancel(self.command_timer)
self.tick_timer=None
# clean up and fifos and sockets left by uzbl
os.system('rm -f /tmp/uzbl_*')
if reason in ('error','killed'):
self.end_callback(reason,message)
self=None
else:
# normal end so do show control and animation
# Control concurrent shows at end
reason,message=self.show_manager.show_control(self.track_params['show-control-end'])
if reason =='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# clear events list for this track
if self.track_params['animate-clear']=='yes':
self.ppio.clear_events_list(id(self))
# create animation events for ending
reason,message=self.ppio.animate(self.animate_end_text,id(self))
if reason=='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
self.end_callback('normal',"track has terminated or quit")
self=None
# *****************
# displaying things
# *****************
def display_content(self):
self.canvas.delete('pp-content')
#background colour
if self.background_colour<>'':
self.canvas.config(bg=self.background_colour)
if self.background_file<>'':
self.background_img_file = self.complete_path(self.background_file)
if not os.path.exists(self.background_img_file):
self.mon.err(self,"Audio background file not found: "+ self.background_img_file)
self.end('error',"Audio background file not found")
else:
pil_background_img=PIL.Image.open(self.background_img_file)
self.background = PIL.ImageTk.PhotoImage(pil_background_img)
self.drawn = self.canvas.create_image(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
image=self.background,
anchor=CENTER,
tag='pp-content')
# execute the plugin if required
if self.track_params['plugin']<>'':
reason,message,self.track = self.pim.do_plugin(self.track,self.track_params['plugin'],)
if reason <> 'normal':
return reason,message
# display hint text if enabled
if self.enable_menu== True:
self.canvas.create_text(int(self.show_params['hint-x']),
int(self.show_params['hint-y']),
text=self.show_params['hint-text'],
fill=self.show_params['hint-colour'],
font=self.show_params['hint-font'],
anchor=NW,
tag='pp-content')
# display show text if enabled
if self.show_params['show-text']<> ''and self.track_params['display-show-text']=='yes':
self.canvas.create_text(int(self.show_params['show-text-x']),int(self.show_params['show-text-y']),
anchor=NW,
text=self.show_params['show-text'],
fill=self.show_params['show-text-colour'],
font=self.show_params['show-text-font'],
tag='pp-content')
# display track text if enabled
if self.track_params['track-text']<> '':
self.canvas.create_text(int(self.track_params['track-text-x']),int(self.track_params['track-text-y']),
anchor=NW,
text=self.track_params['track-text'],
fill=self.track_params['track-text-colour'],
font=self.track_params['track-text-font'],
tag='pp-content')
self.mon.log(self,"Displayed background and text ")
self.canvas.tag_raise('pp-click-area')
self.canvas.update_idletasks( )
return 'normal',''
# *******************
# browser commands
# ***********************
def parse_commands(self,command_text):
self.command_list=[]
lines = command_text.split('\n')
for line in lines:
if line.strip()=="":
continue
reason,entry=self.parse_command(line)
if reason != 'normal':
return 'error',entry
self.command_list.append(copy.deepcopy(entry))
# print self.command_list
return 'normal',''
def parse_command(self,line):
fields = line.split()
if fields[0]=='uzbl':
# print fields[0], line[4:]
return 'normal',[fields[0],line[4:]]
if len(fields) not in (1,2):
return 'error',"incorrect number of fields in command: " + line
command=fields[0]
arg=''
if command not in ('load','refresh','wait','exit','loop'):
return 'error','unknown command: '+ command
if command in ('refresh','exit','loop') and len(fields)<>1:
return 'error','incorrect number of fields for '+ command + 'in: ' + line
if command == 'load':
if len(fields)<>2:
return 'error','incorrect number of fields for '+ command + 'in: ' + line
else:
arg = fields[1]
if command == 'wait':
if len(fields)<>2:
return 'error','incorrect number of fields for '+ command + 'in: ' + line
else:
arg = fields[1]
if not arg.isdigit():return 'error','Argument for Wait is not 0 or positive number in: ' + line
return 'normal',[command,arg]
def play_commands(self):
if len(self.command_list)==0:
return
self.loop=0
self.command_index=0
self.canvas.after(100,self.execute_command)
def execute_command(self):
entry=self.command_list[self.command_index]
command=entry[0]
arg=entry[1]
if self.command_index==len(self.command_list)-1:
self.command_index=self.loop
else:
self.command_index+=1
# execute command
if command == 'load':
#self.canvas.focus_force()
#self.root.lower()
file=self.complete_path(arg)
self.bplayer.control('uri '+ file)
self.command_timer=self.canvas.after(10,self.execute_command)
elif command == 'refresh':
self.bplayer.control('reload_ign_cache')
self.command_timer=self.canvas.after(10,self.execute_command)
elif command == 'wait':
self.command_timer=self.canvas.after(1000*int(arg),self.execute_command)
elif command=='exit':
self.quit_signal=True
elif command=='loop':
self.loop=self.command_index
self.command_timer=self.canvas.after(10,self.execute_command)
elif command=='uzbl':
self.bplayer.control(arg)
self.command_timer=self.canvas.after(10,self.execute_command)
# *****************
# utilities
# *****************
def complete_path(self,track_file):
# complete path of the filename of the selected entry
if track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Background image is "+ track_file)
return track_file
def parse_window(self,line):
# parses warp _ or xy2
fields = line.split()
# check there is a command field
if len(fields) < 1:
return 'error','no type field','',False,0,0,0,0
#deal with warp which has 1 or 5 arguments
# check basic syntax
if fields[0] <>'warp':
return 'error','not a valid type','',False,0,0,0,0
if len(fields) not in (1,5):
return 'error','wrong number of coordinates for warp','',False,0,0,0,0
# deal with window coordinates
if len(fields) == 5:
#window is specified
if not (fields[1].isdigit() and fields[2].isdigit() and fields[3].isdigit() and fields[4].isdigit()):
return 'error','coordinates are not positive integers','',False,0,0,0,0
has_window=True
return 'normal','',fields[0],has_window,int(fields[1]),int(fields[2]),int(fields[3]),int(fields[4])
else:
# fullscreen
has_window=False
return 'normal','',fields[0],has_window,0,0,0,0
class MediaShow:
# *******************
# External interface
# ********************
def __init__(self, show_params, root, canvas, showlist, pp_dir, pp_home,
pp_profile):
""" canvas - the canvas that the menu is to be written on
show - the dictionary fo the show to be played
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon = Monitor()
self.mon.on()
#instantiate arguments
self.show_params = show_params
self.showlist = showlist
self.root = root
self.canvas = canvas
self.pp_dir = pp_dir
self.pp_home = pp_home
self.pp_profile = pp_profile
# open resources
self.rr = ResourceReader()
# Init variables
self.player = None
self.shower = None
self.poll_for_interval_timer = None
self.poll_for_continue_timer = None
self.waiting_for_interval = False
self.interval_timer = None
self.duration_timer = None
self.error = False
self.interval_timer_signal = False
self.end_trigger_signal = False
self.end_mediashow_signal = False
self.next_track_signal = False
self.previous_track_signal = False
self.play_child_signal = False
self.req_next = 'nil'
#create and instance of TimeOfDay scheduler so we can add events
self.tod = TimeOfDay()
self.state = 'closed'
def play(self,
show_id,
end_callback,
show_ready_callback,
top=False,
command='nil'):
""" displays the mediashow
end_callback - function to be called when the menu exits
ready_callback - callback when menu is ready to display (not used)
top is True when the show is top level (run from [start])
"""
#instantiate the arguments
self.show_id = show_id
self.end_callback = end_callback
self.show_ready_callback = show_ready_callback
self.top = top
self.command = command
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Starting show")
# check data files are available.
self.media_file = self.pp_profile + "/" + self.show_params['medialist']
if not os.path.exists(self.media_file):
self.mon.err(self, "Medialist file not found: " + self.media_file)
self.end('error', "Medialist file not found")
#create a medialist for the mediashow and read it.
self.medialist = MediaList()
if self.medialist.open_list(self.media_file,
self.showlist.sissue()) == False:
self.mon.err(self, "Version of medialist different to Pi Presents")
self.end('error', "Version of medialist different to Pi Presents")
#get controls for this show if top level
controlsmanager = ControlsManager()
if self.top == True:
self.controls_list = controlsmanager.default_controls()
# and merge in controls from profile
self.controls_list = controlsmanager.merge_show_controls(
self.controls_list, self.show_params['controls'])
#set up the time of day triggers for the show
if self.show_params['trigger'] in ('time', 'time-quiet'):
error_text = self.tod.add_times(self.show_params['trigger-input'],
id(self), self.tod_start_callback,
self.show_params['trigger'])
if error_text <> '':
self.mon.err(self, error_text)
self.end('error', error_text)
if self.show_params['trigger-end'] == 'time':
# print self.show_params['trigger-end-time']
error_text = self.tod.add_times(
self.show_params['trigger-end-time'], id(self),
self.tod_end_callback, 'n/a')
if error_text <> '':
self.mon.err(self, error_text)
self.end('error', error_text)
if self.show_params['trigger-end'] == 'duration':
error_text = self.calculate_duration(
self.show_params['trigger-end-time'])
if error_text <> '':
self.mon.err(self, error_text)
self.end('error', error_text)
self.state = 'closed'
self.egg_timer = None
self.wait_for_trigger()
# ********************************
# Respond to external events
# ********************************
#stop received from another concurrent show
def managed_stop(self):
# if next lower show is running pass down to stop the show and lower level
if self.shower <> None:
self.shower.managed_stop()
else:
#stop the show if not at top
self.end_mediashow_signal = True
# and if track is runing stop that first
if self.player <> None:
self.player.input_pressed('stop')
# kill or error
def terminate(self, reason):
if self.shower <> None:
self.shower.terminate(reason)
elif self.player <> None:
self.player.terminate(reason)
else:
self.end(reason,
' terminated with no shower or player to terminate')
# respond to input events
def input_pressed(self, symbol, edge, source):
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": received input: " + symbol)
# check symbol against mediashow triggers, triggers can be used at top or lower level
# and not affected by disable-controls
if self.state == 'waiting' and self.show_params['trigger'] in (
'input',
'input-quiet') and symbol == self.show_params['trigger-input']:
self.start_show()
elif self.state == 'playing' and self.show_params[
'trigger-next'] == 'input' and symbol == self.show_params[
'next-input']:
self.next()
# internal functions are triggered only when disable-controls is 'no'
if self.show_params['disable-controls'] == 'yes':
return
# if at top convert symbolic name to operation otherwise lower down we have received an operation
# look through list of standard symbols to find match (symbolic-name, function name) operation =lookup (symbol
if self.top == True:
operation = self.lookup_control(symbol, self.controls_list)
else:
operation = symbol
# print 'operation',operation
self.do_operation(operation, edge, source)
#service the standard inputs for this show
def do_operation(self, operation, edge, source):
if self.shower <> None:
# if next lower show is running pass down to stop the show and lower level
self.shower.input_pressed(operation, edge, source)
else:
# control this show and its tracks
# print 'operation',operation
if operation == 'stop':
if self.top == False:
# not at top so stop the current show
self.end_mediashow_signal = True
# and if a track is running stop that first
if self.player <> None:
self.player.input_pressed('stop')
else:
# top = True, just stop track if running
if self.player <> None:
self.player.input_pressed('stop')
elif operation in ('up', 'down'):
#if playing rather than waiting use keys for next or previous
if operation == 'up' and self.state == 'playing':
self.previous()
else:
self.next()
elif operation == 'play':
# use 'play' to start child if state=playing or to trigger the show if waiting for trigger
if self.state == 'playing':
if self.show_params['has-child'] == 'yes':
self.play_child_signal = True
self.child_track_ref = 'pp-child-show'
# and stop the current track if its running
if self.player <> None:
self.player.input_pressed('stop')
else:
if self.state == 'waiting':
self.start_show()
elif operation == 'pause':
if self.player <> None:
self.player.input_pressed(operation)
#if the operation is omxplayer or mplayer runtime control then pass it to player if running
elif operation[0:4] == 'omx-' or operation[
0:6] == 'mplay-' or operation[0:5] == 'uzbl-':
if self.player <> None:
self.player.input_pressed(operation)
def lookup_control(self, symbol, controls_list):
for control in controls_list:
if symbol == control[0]:
return control[1]
return ''
# ***************************
# Show sequencer
# ***************************
def end_interval_timer(self):
self.interval_timer_signal = True
# callback from time of day scheduler
def tod_start_callback(self):
if self.state == 'waiting' and self.show_params['trigger'] in (
'time', 'time-quiet'):
self.start_show()
def tod_end_callback(self):
if self.state == 'playing' and self.show_params['trigger-end'] in (
'time', 'duration'):
self.end_trigger_signal = True
if self.shower <> None:
self.shower.input_pressed('stop')
elif self.player <> None:
self.player.input_pressed('stop')
def stop(self, message):
self.end_mediashow_signal = True
if self.interval_timer <> None:
self.canvas.after_cancel(self.interval_timer)
def next(self):
# stop track if running and set signal
self.next_track_signal = True
if self.shower <> None:
self.shower.input_pressed("stop")
else:
if self.player <> None:
self.player.input_pressed("stop")
def previous(self):
self.previous_track_signal = True
if self.shower <> None:
self.shower.input_pressed("stop")
else:
if self.player <> None:
self.player.input_pressed("stop")
# wait for trigger sets the state to waiting so that events can do a start show.
def wait_for_trigger(self):
self.state = 'waiting'
if self.show_ready_callback <> None:
self.show_ready_callback()
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Waiting for trigger: " + self.show_params['trigger'])
if self.show_params['trigger'] == "input":
# blank screen waiting for trigger if auto, otherwise display something
if self.show_params['progress'] == "manual":
text = self.resource('mediashow', 'm01')
else:
text = self.resource('mediashow', 'm02')
self.display_message(self.canvas, 'text', text, 0, self.start_show)
elif self.show_params['trigger'] == "input-quiet":
# blank screen waiting for trigger
text = self.resource('mediashow', 'm10')
self.display_message(self.canvas, 'text', text, 0, self.start_show)
pass
elif self.show_params['trigger'] in ('time', 'time-quiet'):
# show next show notice
quiet = 3
# if next show is this one display text
next_show = self.tod.next_event_time()
if next_show[quiet] == False:
if next_show[1] == 'tomorrow':
text = self.resource('mediashow', 'm09')
else:
text = self.resource('mediashow', 'm08')
text = text.replace('%tt', next_show[0])
self.display_message(self.canvas, 'text', text, 0,
self.start_show)
elif self.show_params['trigger'] == "start":
self.start_show()
else:
self.mon.err(self,
"Unknown trigger: " + self.show_params['trigger'])
self.end('error', "Unknown trigger type")
def start_show(self):
self.state = 'playing'
self.direction = 'forward'
# self.canvas.delete(ALL)
# start interval timer
if self.show_params['repeat'] == "interval" and self.show_params[
'repeat-interval'] <> 0:
self.interval_timer_signal = False
self.interval_timer = self.canvas.after(
int(self.show_params['repeat-interval']) * 1000,
self.end_interval_timer)
# start duration timer
if self.show_params['trigger-end'] == 'duration':
# print 'set alarm ', self.duration
self.duration_timer = self.canvas.after(self.duration * 1000,
self.tod_end_callback)
# and play the first track unless commanded otherwise
if self.command == 'backward':
self.medialist.finish()
else:
self.medialist.start()
self.play_selected_track(self.medialist.selected_track())
def what_next(self):
self.direction = 'forward'
# end of show trigger caused by tod
if self.end_trigger_signal == True:
self.end_trigger_signal = False
if self.top == True:
self.state = 'waiting'
self.wait_for_trigger()
else:
# not at top so stop the show
self.end('normal', 'sub-show end time trigger')
# user wants to end, wait for any shows or tracks to have ended then end show
# probalby will get here with end_m set when player and shower has finished
elif self.end_mediashow_signal == True:
if self.player == None and self.shower == None:
self.end_mediashow_signal = False
self.end('normal', "show ended by user")
#returning from a subshow needing to move onward
elif self.req_next == 'do-next':
self.req_next = 'nil'
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
#returning from a subshow needing to move backward
elif self.req_next == 'do-previous':
self.req_next = 'nil'
self.direction = 'backward'
self.medialist.previous(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# user wants to play child
elif self.play_child_signal == True:
self.play_child_signal = False
index = self.medialist.index_of_track(self.child_track_ref)
if index >= 0:
#don't use select the track as need to preserve mediashow sequence.
child_track = self.medialist.track(index)
self.display_eggtimer(self.resource('mediashow', 'm07'))
self.play_selected_track(child_track)
else:
self.mon.err(
self, "Child show not found in medialist: " +
self.show_params['pp-child-show'])
self.end('error', "child show not found in medialist")
# skip to next track on user input
elif self.next_track_signal == True:
self.next_track_signal = False
if self.medialist.at_end() == True:
if self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'oneshot' and self.top == False:
self.end('do-next', "Return from Sub Show")
elif self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'single-run' and self.top == False:
self.end('do-next', "Return from Sub Show")
else:
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
else:
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# skip to previous track on user input
elif self.previous_track_signal == True:
self.previous_track_signal = False
self.direction = 'backward'
if self.medialist.at_start() == True:
if self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'oneshot' and self.top == False:
self.end('do-previous', "Return from Sub Show")
elif self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'single-run' and self.top == False:
self.end('do-previous', "Return from Sub Show")
else:
self.medialist.previous(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
else:
self.medialist.previous(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# track is finished and we are on auto
elif self.show_params['progress'] == "auto":
if self.medialist.at_end() == True:
# oneshot
if self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'oneshot' and self.top == False:
self.end('normal', "End of Oneshot in subshow")
elif self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'oneshot' and self.top == True:
self.wait_for_trigger()
# single run
elif self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'single-run' and self.top == True:
self.end('normal', "End of Single Run")
elif self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'single-run' and self.top == False:
self.end('do-next',
"End of single run - Return from Sub Show")
# repeating and waiting to restart
elif self.waiting_for_interval == True:
if self.interval_timer_signal == True:
self.interval_timer_signal = False
self.waiting_for_interval = False
self.start_show()
else:
self.poll_for_interval_timer = self.canvas.after(
1000, self.what_next)
elif self.show_params[
'sequence'] == "ordered" and self.show_params[
'repeat'] == 'interval' and int(
self.show_params['repeat-interval']) > 0:
self.waiting_for_interval = True
self.poll_for_interval_timer = self.canvas.after(
1000, self.what_next)
#elif self.show_params['sequence']=="ordered" and self.show_params['repeat']=='interval' and int(self.show_params['repeat-interval'])==0:
elif self.show_params['repeat'] == 'interval' and int(
self.show_params['repeat-interval']) == 0:
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# shuffling so there is no end condition
elif self.show_params['sequence'] == "shuffle":
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
else:
self.mon.err(
self, "Unhandled playing event: " +
self.show_params['sequence'] + ' with ' +
self.show_params['repeat'] + " of " +
self.show_params['repeat-interval'])
self.end('error', "Unhandled playing event")
else:
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# track has finished and we are on manual progress
elif self.show_params['progress'] == "manual":
self.delete_eggtimer()
self.canvas.delete('pp-content')
if self.show_params['trigger-next'] == 'input':
self.display_eggtimer(self.resource('mediashow', 'm03'))
self.poll_for_continue_timer = self.canvas.after(
2000, self.what_next)
else:
#unhandled state
self.mon.err(self, "Unhandled playing event: ")
self.end('error', "Unhandled playing event")
# ***************************
# Dispatching to Players/Shows
# ***************************
def ready_callback(self):
self.delete_eggtimer()
def play_selected_track(self, selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
self.delete_eggtimer()
if self.show_params['progress'] == "manual":
self.display_eggtimer(self.resource('mediashow', 'm04'))
# is menu required
if self.show_params['has-child'] == "yes":
self.enable_child = True
else:
self.enable_child = False
#dispatch track by type
self.player = None
self.shower = None
track_type = selected_track['type']
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Track type is: " + track_type)
if track_type == "video":
# create a videoplayer
track_file = self.complete_path(selected_track)
self.player = VideoPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type == "audio":
# create a audioplayer
track_file = self.complete_path(selected_track)
self.player = AudioPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type == "web":
# create a browser
track_file = self.complete_path(selected_track)
self.player = BrowserPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type == "image":
track_file = self.complete_path(selected_track)
# images played from menus don't have children
self.player = ImagePlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type == "message":
# bit odd because MessagePlayer is used internally to display text.
text = selected_track['text']
self.player = MessagePlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(text,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type == "show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >= 0:
self.showlist.select(index)
selected_show = self.showlist.selected_show()
else:
self.mon.err(
self, "Show not found in showlist: " +
selected_track['sub-show'])
self.end('error', "Unknown show")
if selected_show['type'] == "mediashow":
self.shower = MediaShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command=self.direction)
elif selected_show['type'] == "liveshow":
self.shower = LiveShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "radiobuttonshow":
self.shower = RadioButtonShow(selected_show, self.root,
self.canvas, self.showlist,
self.pp_dir, self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "hyperlinkshow":
self.shower = HyperlinkShow(selected_show, self.root,
self.canvas, self.showlist,
self.pp_dir, self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "menu":
self.shower = MenuShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
else:
self.mon.err(self,
"Unknown Show Type: " + selected_show['type'])
self.end('error' "Unknown show type")
else:
self.mon.err(self, "Unknown Track Type: " + track_type)
self.end('error', "Unknown track type")
def end_player(self, reason, message):
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Returned from player with message: " + message)
self.player = None
self.req_next = 'nil'
if reason in ("killed", "error"):
self.end(reason, message)
else:
# elif>else move to what-next?
if self.show_params['progress'] == "manual":
self.display_eggtimer(self.resource('mediashow', 'm05'))
self.req_next = reason
self.what_next()
else:
self.req_next = reason
self.what_next()
def end_shower(self, show_id, reason, message):
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Returned from shower with message: " + message)
self.shower = None
self.req_next = 'nil'
if reason in ("killed", "error"):
self.end(reason, message)
else:
if self.show_params['progress'] == "manual":
self.display_eggtimer(self.resource('mediashow', 'm06'))
self.req_next = reason
self.what_next()
else:
self.req_next = reason
self.what_next()
# ***************************
# end of show
# ***************************
def end(self, reason, message):
self.end_mediashow_signal = False
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Ending Mediashow")
self.tidy_up()
self.end_callback(self.show_id, reason, message)
self = None
return
def tidy_up(self):
#clear outstanding time of day events for this show
# self.tod.clear_times_list(id(self))
if self.poll_for_continue_timer <> None:
self.canvas.after_cancel(self.poll_for_continue_timer)
self.poll_for_continue_timer = None
if self.poll_for_interval_timer <> None:
self.canvas.after_cancel(self.poll_for_interval_timer)
self.poll_for_interval_timer = None
if self.interval_timer <> None:
self.canvas.after_cancel(self.interval_timer)
self.interval_timer = None
if self.duration_timer <> None:
self.canvas.after_cancel(self.duration_timer)
self.duration_timer = None
# ***************************
# displaying things
# ***************************
def display_eggtimer(self, text):
self.canvas.create_text(int(self.canvas['width']) / 2,
int(self.canvas['height']) / 2,
text=text,
fill='white',
font="Helvetica 20 bold",
tag='pp-eggtimer')
self.canvas.update_idletasks()
def delete_eggtimer(self):
self.canvas.delete('pp-eggtimer')
self.canvas.update_idletasks()
# used to display internal messages in situations where a medialist entry could not be used.
def display_message(self, canvas, source, content, duration,
_display_message_callback):
self.display_message_callback = _display_message_callback
tp = {
'duration': duration,
'message-colour': 'white',
'message-font': 'Helvetica 20 bold',
'background-colour': '',
'message-justify': 'left',
'background-image': '',
'show-control-begin': '',
'show-control-end': '',
'animate-begin': '',
'animate-clear': '',
'animate-end': '',
'message-x': '',
'message-y': '',
'display-show-background': 'no',
'display-show-text': 'no',
'show-text': '',
'track-text': '',
'plugin': ''
}
self.player = MessagePlayer(self.show_id, self.root, canvas, tp, tp,
self.pp_dir, self.pp_home, self.pp_profile)
self.player.play(content, self.showlist, self.display_message_end,
None, False)
def display_message_end(self, reason, message):
self.player = None
if reason in ('error', 'killed'):
self.end(reason, message)
else:
self.display_message_callback()
# ***************************
# utilities
# ***************************
def calculate_duration(self, line):
fields = line.split(':')
if len(fields) == 1:
secs = fields[0]
minutes = '0'
hours = '0'
if len(fields) == 2:
secs = fields[1]
minutes = fields[0]
hours = '0'
if len(fields) == 3:
secs = fields[2]
minutes = fields[1]
hours = fields[0]
self.duration = 3600 * long(hours) + 60 * long(minutes) + long(secs)
return ''
def resource(self, section, item):
value = self.rr.get(section, item)
if value == False:
self.mon.err(self,
"resource: " + section + ': ' + item + " not found")
self.terminate("error")
else:
return value
def complete_path(self, selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file <> '' and track_file[0] == "+":
track_file = self.pp_home + track_file[1:]
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Track to play is: " + track_file)
return track_file
class MessagePlayer:
""" Displays lines of text in the centre of a black screen"""
# *******************
# external commands
# *******************
def __init__(self,canvas,cd,track_params):
"""
canvas - the canvas onto which the image is to be drawn
cd - configuration dictionary for the show from which player was called
"""
self.mon=Monitor()
self.mon.on()
self.canvas=canvas
self.cd=cd
self.track_params=track_params
# get config from medialist if there.
if 'duration' in self.track_params and self.track_params['duration']<>"":
self.duration= int(self.track_params['duration'])
else:
self.duration= int(self.cd['duration'])
# keep dwell and porch as an integer multiple of tick
self.tick = 100 # tick time for image display (milliseconds)
self.dwell = (1000*self.duration)
self.centre_x = int(self.canvas['width'])/2
self.centre_y = int(self.canvas['height'])/2
def play(self,
text,
end_callback,
ready_callback,
enable_menu=False,
starting_callback=None,
playing_callback=None,
ending_callback=None):
# instantiate arguments
self.text=text
self.enable_menu=enable_menu
self.ready_callback=ready_callback
self.end_callback=end_callback
#init state and signals
self.quit_signal=False
self.kill_required_signal=False
self.error=False
self._tick_timer=None
self.drawn=None
# and start text display
self._start_dwell()
def key_pressed(self,key_name):
self.mon.log(self,"key received: "+key_name)
if key_name=='':
return
elif key_name in ('p'):
return
elif key_name=='escape':
self._stop()
return
def button_pressed(self,button,edge):
self.mon.log(self,"button received: "+button)
if button =='pause':
return
elif button=='stop':
self._stop()
return
def terminate(self,reason):
if reason=='error':
self.error=True
else:
self.kill_required_signal=True
self.quit_signal=True
# *******************
# internal functions
# *******************
def _stop(self):
self.quit_signal=True
def _error(self):
self.error=True
self.quit_signal=True
#called when dwell has completed or quit signal is received
def _end(self,reason,message):
if self._tick_timer<>None:
self.canvas.after_cancel(self._tick_timer)
self._tick_timer=None
self.quit_signal=False
#self.canvas.delete(ALL)
self.canvas.update_idletasks( )
if self.error==True:
self.end_callback("error",message)
self=None
elif self.kill_required_signal==True:
self.end_callback("killed",message)
self=None
else:
self.end_callback('normal',message)
self=None
def _start_dwell(self):
self.dwell_counter=0
if self.ready_callback<>None:
self.ready_callback()
# display text
self.canvas.create_text(self.centre_x, self.centre_y,
text=self.text.rstrip('\n'),
fill=self.track_params['message-colour'],
font=self.track_params['message-font'])
# display instructions (hint)
if self.enable_menu==True:
self.canvas.create_text(int(self.canvas['width'])/2,
int(self.canvas['height']) - int(self.cd['hint-y']),
text=self.cd['hint-text'],
fill=self.cd['hint-colour'],
font=self.cd['hint-font'])
self.canvas.update_idletasks( )
self._tick_timer=self.canvas.after(self.tick, self._do_dwell)
def _do_dwell(self):
if self.quit_signal == True:
self.mon.log(self,"quit received")
self._end('normal','user quit')
else:
if self.dwell<>0:
self.dwell_counter=self.dwell_counter+1
if self.dwell_counter==self.dwell/self.tick:
self._end('normal','finished')
else:
self._tick_timer=self.canvas.after(self.tick, self._do_dwell)
else:
self._tick_timer=self.canvas.after(self.tick, self._do_dwell)
class AudioPlayer:
_CLOSED = "mplayer_closed" #probably will not exist
_STARTING = "mplayer_starting" #track is being prepared
_PLAYING = "mplayer_playing" #track is playing to the screen, may be paused
_ENDING = "mplayer_ending" #track is in the process of ending due to quit or end of track
_WAITING = "wait for timeout" # track has finished but timeout still running
#_LEFT = "-af channels=2:1:0:0:1:1,resample=48000:1 "
# _RIGHT = "-af channels=2:1:0:1:1:0,resample=48000:1 "
#_STEREO = "-af channels=2,resample=48000:1 "
_LEFT = "channels=2:1:0:0:1:1"
_RIGHT = "channels=2:1:0:1:1:0"
_STEREO = "channels=2"
# ***************************************
# EXTERNAL COMMANDS
# ***************************************
def __init__(self,
show_id,
canvas,
pp_home,
show_params,
track_params ):
"""
canvas - the canvas onto which the background image is to be drawn
show_params - configuration of show playing the track
track_params - config dictionary for this track overrides show_params
"""
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show_id=show_id
self.show_params=show_params #configuration dictionary for the videoplayer
self.canvas = canvas #canvas onto which video should be played but isn't! Use as widget for alarm
self.pp_home=pp_home
self.track_params=track_params
# get duration (secs ) from profile
self.duration= int(self.track_params['duration'])
self.duration_limit=20*self.duration
# get background image from profile.
self.background_file = self.track_params['background-image']
# get audio sink from profile.
if self.track_params['mplayer-audio']<>"":
self.mplayer_audio= self.track_params['mplayer-audio']
else:
self.mplayer_audio= self.show_params['mplayer-audio']
# get audio volume from profile.
if self.track_params['mplayer-volume']<>"":
self.mplayer_volume= self.track_params['mplayer-volume'].strip()
else:
self.mplayer_volume= self.show_params['mplayer-volume'].strip()
self.volume_option= 'volume=' + self.mplayer_volume
#get speaker from profile
if self.track_params['audio-speaker']<>"":
self.audio_speaker= self.track_params['audio-speaker']
else:
self.audio_speaker= self.show_params['audio-speaker']
if self.audio_speaker=='left':
self.speaker_option=AudioPlayer._LEFT
elif self.audio_speaker=='right':
self.speaker_option=AudioPlayer._RIGHT
else:
self.speaker_option=AudioPlayer._STEREO
#get animation instructions from profile
self.animate_begin_text=self.track_params['animate-begin']
self.animate_end_text=self.track_params['animate-end']
#create an instance of PPIO so we can create gpio events
self.ppio = PPIO()
# could put instance generation in play, not sure which is better.
self.mplayer=mplayerDriver(self.canvas)
self._tick_timer=None
self.error=False
self.terminate_me=False
self._init_play_state_machine()
def play(self, track,
end_callback,
ready_callback,
enable_menu=False,
starting_callback=None,
playing_callback=None,
ending_callback=None):
"""
play - plays the specified track, the first call after __init__
track - full path of track to play
end_callback - callback when track ends (reason,message)
reason = killed - return from a terminate with reason = killed
error - return because player or lower level has generated and runtime error
normal - anything else
message = ant tesxt, used for debugging
ready_callback - callback when the track is ready to play, use to stop eggtimer etc.
enable_menu - True if the track is to have a child show
starting/playing/ending callback - called repeatedly in each state for show to display status, time etc.
"""
#instantiate arguments
self.track=track
self.ready_callback=ready_callback #callback when ready to play
self.enable_menu=enable_menu
self.end_callback=end_callback # callback when finished
self.starting_callback=starting_callback #callback during starting state
self.playing_callback=playing_callback #callback during playing state
self.ending_callback=ending_callback # callback during ending state
# enable_menu is not used by AudioPlayer
# select the sound sink
if self.mplayer_audio<>"":
if self.mplayer_audio=='hdmi':
os.system("amixer -q -c 0 cset numid=3 2")
else:
os.system("amixer -q -c 0 cset numid=3 1")
# callback to the calling object to e.g remove egg timer.
if self.ready_callback<>None:
self.ready_callback()
# display image and text
self.display_image()
# create animation events
error_text=self.ppio.animate(self.animate_begin_text,id(self))
if error_text<>'':
self.mon.err(self,error_text)
self.error=True
self._end('error',error_text)
# and start playing the track.
if self.play_state == AudioPlayer._CLOSED:
self.mon.log(self,">play track received")
self._start_play_state_machine()
return True
else:
self.mon.log(self,"!< play track rejected")
return False
def key_pressed(self,key_name):
"""
respond to user or system key presses
"""
if key_name=='':
return
elif key_name in ('p',' '):
self._pause()
return
elif key_name=='escape':
self._stop()
return
def button_pressed(self,button,edge):
"""
respond to user button presses
"""
if button =='pause':
self._pause()
return
elif button=='stop':
self._stop()
return
def terminate(self,reason):
"""
terminate the player in special circumstances
normal user termination if by key_pressed 'escape'
reason will be killed or error
"""
# circumvents state machine to terminate lower level and then itself.
self.terminate_me=True
if self.mplayer<>None:
self.mon.log(self,"sent terminate to mplayerdriver")
self.mplayer.terminate(reason)
self._end('killed',' end without waiting') # end without waiting
else:
self.mon.log(self,"terminate, mplayerdriver not running")
self._end('killed','terminate, mplayerdriver not running')
# ***************************************
# INTERNAL FUNCTIONS
# ***************************************
#toggle pause
def _pause(self):
if self.play_state in (AudioPlayer._PLAYING,AudioPlayer._ENDING) and self.track<>'':
self.mplayer.pause()
return True
else:
self.mon.log(self,"!<pause rejected")
return False
# other control when playing, not currently used
def _control(self,char):
if self.play_state==AudioPlayer._PLAYING and self.track<>'':
self.mon.log(self,"> send control to mplayer: "+ char)
self.mplayer.control(char)
return True
else:
self.mon.log(self,"!<control rejected")
return False
# respond to normal stop
def _stop(self):
# send signal to stop the track to the state machine
self.mon.log(self,">stop received")
self._stop_required_signal=True
#respond to internal error by setting flags to cause state machine to stop player
#use this rather than end if the driver and its spawned process might still be running
def _error(self):
self.error=True
self._stop_required_signal=True
# tidy up and end AudioPlayer.
def _end(self,reason,message):
# self.canvas.delete(ALL)
# abort the timer
if self._tick_timer<>None:
self.canvas.after_cancel(self._tick_timer)
self._tick_timer=None
if self.error==True or reason=='error':
self.end_callback("error",message)
self=None
elif self.terminate_me==True:
self.end_callback("killed",message)
self=None
else:
# clear events list for this track
if self.track_params['animate-clear']=='yes':
self.ppio.clear_events_list(id(self))
# create animation events for ending
error_text=self.ppio.animate(self.animate_end_text,id(self))
if error_text=='':
self.end_callback('normal',"track has terminated or quit")
self=None
else:
self.mon.err(self,error_text)
self.end_callback("error",error_text)
self=None
# ***************************************
# # PLAYING STATE MACHINE
# ***************************************
"""self. play_state controls the playing sequence, it has the following values.
I am not entirely sure the starting and ending states are required.
- _closed - the mplayer process is not running, mplayer process can be initiated
- _starting - mplayer process is running but is not yet able to receive controls
- _playing - playing a track, controls can be sent
- _ending - mplayer is doing its termination, controls cannot be sent
"""
def _init_play_state_machine(self):
self._stop_required_signal=False
self.play_state=AudioPlayer._CLOSED
def _start_play_state_machine(self):
#initialise all the state machine variables
self.duration_count = 0
self._stop_required_signal=False # signal that user has pressed stop
#play the track
options = self.show_params['mplayer-other-options'] + '-af '+ self.speaker_option+','+self.volume_option + ' '
if self.track<>'':
self.mplayer.play(self.track,options)
self.mon.log (self,'Playing track from show Id: '+ str(self.show_id))
self.play_state=AudioPlayer._STARTING
else:
self.play_state=AudioPlayer._PLAYING
# and start polling for state changes and count duration
self._tick_timer=self.canvas.after(50, self._play_state_machine)
def _play_state_machine(self):
self.duration_count+=1
if self.play_state == AudioPlayer._CLOSED:
self.mon.log(self," State machine: " + self.play_state)
return
elif self.play_state == AudioPlayer._STARTING:
self.mon.log(self," State machine: " + self.play_state)
# if mplayer is playing the track change to play state
if self.mplayer.start_play_signal==True:
self.mon.log(self," <start play signal received from mplayer")
self.mplayer.start_play_signal=False
self.play_state=AudioPlayer._PLAYING
self.mon.log(self," State machine: mplayer_playing started")
self._do_starting()
self._tick_timer=self.canvas.after(50, self._play_state_machine)
elif self.play_state == AudioPlayer._PLAYING:
# self.mon.log(self," State machine: " + self.play_state)
# service any queued stop signals
if self._stop_required_signal==True or (self.duration_limit<>0 and self.duration_count>self.duration_limit):
self.mon.log(self," Service stop required signa or timeout")
# self._stop_required_signal=False
if self.track<>'':
self._stop_mplayer()
self.play_state = AudioPlayer._ENDING
else:
self.play_state = AudioPlayer._CLOSED
self._end('normal','stop required signa or timeout')
# mplayer reports it is terminating so change to ending state
if self.track<>'' and self.mplayer.end_play_signal:
self.mon.log(self," <end play signal received")
self.mon.log(self," <end detected at: " + str(self.mplayer.audio_position))
self.play_state = AudioPlayer._ENDING
self._do_playing()
self._tick_timer=self.canvas.after(50, self._play_state_machine)
elif self.play_state == AudioPlayer._ENDING:
# self.mon.log(self," State machine: " + self.play_state)
self._do_ending()
# if spawned process has closed can change to closed state
# self.mon.log (self," State machine : is mplayer process running? - " + str(self.mplayer.is_running()))
if self.mplayer.is_running() ==False:
self.mon.log(self," <mplayer process is dead")
if self._stop_required_signal==True:
self._stop_required_signal=False
self.play_state = AudioPlayer._CLOSED
self._end('normal','mplayer dead')
elif self.duration_limit<>0 and self.duration_count<self.duration_limit:
self.play_state= AudioPlayer._WAITING
self._tick_timer=self.canvas.after(50, self._play_state_machine)
else:
self.play_state = AudioPlayer._CLOSED
self._end('normal','mplayer dead')
else:
self._tick_timer=self.canvas.after(50, self._play_state_machine)
elif self.play_state == AudioPlayer._WAITING:
# self.mon.log(self," State machine: " + self.play_state)
if self._stop_required_signal==True or (self.duration_limit<>0 and self.duration_count>self.duration_limit):
self.mon.log(self," Service stop required signal or timeout from wait")
self._stop_required_signal=False
self.play_state = AudioPlayer._CLOSED
self._end('normal','mplayer dead')
else:
self._tick_timer=self.canvas.after(50, self._play_state_machine)
# allow calling object do things in each state by calling the appropriate callback
def _do_playing(self):
if self.track<>'':
self.audio_position=self.mplayer.audio_position
if self.playing_callback<>None:
self.playing_callback()
def _do_starting(self):
self.audio_position=0.0
if self.starting_callback<>None:
self.starting_callback()
def _do_ending(self):
if self.ending_callback<>None:
self.ending_callback()
def _stop_mplayer(self):
# send signal to stop the track to the state machine
self.mon.log(self," >stop mplayer received from state machine")
if self.play_state==AudioPlayer._PLAYING:
self.mplayer.stop()
return True
else:
self.mon.log(self,"!<stop rejected")
return False
# *****************
# image and text
# *****************
def display_image(self):
if self.background_file<>'' or self.show_params['show-text']<> '' or self.track_params['track-text']<> '' or self.enable_menu== True or self.track_params['clear-screen']=='yes':
self.canvas.config(bg='black')
self.canvas.delete(ALL)
if self.background_file<>'':
self.background_img_file = self.complete_path(self.background_file)
if not os.path.exists(self.background_img_file):
self.mon.err(self,"Audio background file not found: "+ self.background_img_file)
self._end('error',"Audio background file not found")
else:
pil_background_img=PIL.Image.open(self.background_img_file)
self.background = PIL.ImageTk.PhotoImage(pil_background_img)
self.drawn = self.canvas.create_image(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
image=self.background,
anchor=CENTER)
# display hint text if enabled
if self.enable_menu== True:
self.canvas.create_text(int(self.canvas['width'])/2, int(self.canvas['height']) - int(self.show_params['hint-y']),
text=self.show_params['hint-text'],
fill=self.show_params['hint-colour'],
font=self.show_params['hint-font'])
# display show text if enabled
if self.show_params['show-text']<> '':
self.canvas.create_text(int(self.show_params['show-text-x']),int(self.show_params['show-text-y']),
anchor=NW,
text=self.show_params['show-text'],
fill=self.show_params['show-text-colour'],
font=self.show_params['show-text-font'])
# display track text if enabled
if self.track_params['track-text']<> '':
self.canvas.create_text(int(self.track_params['track-text-x']),int(self.track_params['track-text-y']),
anchor=NW,
text=self.track_params['track-text'],
fill=self.track_params['track-text-colour'],
font=self.track_params['track-text-font'])
self.mon.log(self,"Displayed background and text ")
self.canvas.update_idletasks( )
def complete_path(self,track_file):
# complete path of the filename of the selected entry
if track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Background image is "+ track_file)
return track_file
class uzblDriver(object):
def __init__(self,widget):
self.widget=widget
self.mon=Monitor()
self.mon.on()
self._process=None
self.fifo=''
def pause(self):
pass
def stop(self):
self.control('exit')
# kill the subprocess (uzbl). Used for tidy up on exit.
def terminate(self,reason):
self.terminate_reason=reason
if self.exists_fifo():
self.control('exit')
#self._process.close(force=True)
self.end_play_signal=True
def play(self, track, geometry):
self.start_play_signal = False
self.end_play_signal=False
# track= "'"+ track.replace("'","'\\''") + "'"
cmd='uzbl-browser ' + geometry + '--uri='+track
self.mon.log(self, "Send command to uzbl: "+ cmd)
self._process = pexpect.spawn(cmd)
# uncomment to monitor output to and input from uzbl (read pexpect manual)
# fout= file('/home/pi/pipresents/uzbllogfile.txt','w') #uncomment and change sys.stdout to fout to log to a file
# self._process.logfile_send = sys.stdout # send just commands to stdout
# self._process.logfile=fout # send all communications to log
# and poll for fifo to be available
self.get_fifo()
# poll for fifo to be available
# when it is set start_play_signal
# then monitor for it to be delted because browser is closed
# and the set end_play signal
def get_fifo(self):
"""
Look for UZBL's FIFO-file in /tmp.
Don't give up until it has been found.
"""
candidates = glob('/tmp/uzbl_fifo_*')
for file in candidates:
if S_ISFIFO(os_stat(file).st_mode):
self.mon.log(self, 'Found UZBL fifo in %s.' % file)
self.fifo=file
self.start_play_signal=True
return
# print 'not found trying again'
self.widget.after(500,self.get_fifo)
def exists_fifo(self):
if os.path.exists(self.fifo):
return True
else:
return False
# send commands to uzbl via the fifo
def control(self,data):
if self.exists_fifo():
self.mon.log(self,'send command to uzbl:'+data)
f = open(self.fifo, 'a')
f.write('%s\n' % data)
f.close()
# test of whether _process is running
def is_running(self):
return self._process.isalive()
class MenuShow:
""" Displays a menu with optional hint below it. User can traverse the menu and
select a track using key or button presses.
Interface:
* play - displays the menu and selects the first entry
* key_pressed, button_pressed - receives user events passes them to a Player if a track is playing,
otherwise actions them with _next, _previous, _play_selected_track, _end
Optional display of eggtimer by means of Players ready_callback
Supports imageplayer, videoplayer,messagplayer,menushow,mediashow
Destroys itself on exit
"""
# *********************
# external interface
# ********************
def __init__(self,
show,
canvas,
showlist,
pp_home,
pp_profile):
""" canvas - the canvas that the menu is to be written on
show - the name of the configuration dictionary section for the menu
cf - the configuration object
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory"""
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show=show
self.showlist=showlist
self.canvas=canvas
self.pp_home=pp_home
self.pp_profile=pp_profile
# open resources
self.rr=ResourceReader()
# init variables
self.drawn = None
self.player=None
self.shower=None
self.menu_timeout_running=None
self.error=False
def play(self,end_callback,ready_callback=None,top=False,command='nil'):
""" displays the menu
end_callback - function to be called when the menu exits
ready_callback - callback when menu is ready to display (not used)
top is True when the show is top level (run from [start])
"""
#instantiate arguments
self.end_callback=end_callback
self.ready_callback=ready_callback
self.top=top
self.command=command
# check data files are available.
self.menu_file = self.pp_profile + "/" + self.show['medialist']
if not os.path.exists(self.menu_file):
self.mon.err(self,"Medialist file not found: "+ self.menu_file)
self._end('error',"Medialist file not found")
#create a medialist for the menu and read it.
self.medialist=MediaList()
if self.medialist.open_list(self.menu_file,self.showlist.sissue()) == False:
self.mon.err(self,"Version of medialist different to Pi Presents")
self._end('error',"Version of medialist different to Pi Presents")
if self.show['has-background']=="yes":
background_index=self.medialist.index_of_track ('pp-menu-background')
if background_index>=0:
self.menu_img_file = self.complete_path(self.medialist.track(background_index))
if not os.path.exists(self.menu_img_file):
self.mon.err(self,"Menu background file not found: "+ self.menu_img_file)
self._end('error',"Menu background file not found")
else:
self.mon.err(self,"Menu background not found in medialist")
self._end('error',"Menu background not found")
#start timeout alarm if required
if int(self.show['timeout'])<>0:
self.menu_timeout_running=self.canvas.after(int(self.show['timeout'])*1000,self._timeout_menu)
if self.ready_callback<>None:
self.ready_callback()
self.canvas.delete(ALL)
# display background image
if self.show['has-background']=="yes":
self._display_background()
#display the list of video titles
self._display_video_titles()
# display instructions (hint)
self.canvas.create_text(int(self.canvas['width'])/2,
int(self.canvas['height']) - int(self.show['hint-y']),
text=self.show['hint-text'],
fill=self.show['hint-colour'],
font=self.show['hint-font'])
self.canvas.update( )
# respond to key presses.
def key_pressed(self,key_name):
self.mon.log(self,"received key: " + key_name)
if key_name=='':
pass
elif key_name=='escape':
# if next lower show eor player is running pass down to stop bottom level
# ELSE stop this show if not at top
if self.shower<>None:
self.shower.key_pressed(key_name)
elif self.player<>None:
self.player.key_pressed(key_name)
else:
# not at top so stop the show
if self.top == False:
self._end('normal',"exit from stop command")
else:
pass
elif key_name in ('up','down'):
# if child or sub-show running and is a show pass down
# if child not running - move
if self.shower<>None:
self.shower.key_pressed(key_name)
else:
if self.player==None:
if key_name=='up':
self._previous()
else:
self._next()
elif key_name=='return':
# if child running and is show - pass down
# if no track already running - play
if self.shower<>None:
self.shower.key_pressed(key_name)
else:
if self.player==None:
self._play_selected_track(self.medialist.selected_track())
elif key_name in ('p',' '):
# pass down if show or track running.
if self.shower<>None:
self.shower.key_pressed(key_name)
elif self.player<>None:
self.player.key_pressed(key_name)
def button_pressed(self,button,edge):
if button=='play': self.key_pressed("return")
elif button =='up': self.key_pressed("up")
elif button=='down': self.key_pressed("down")
elif button=='stop': self.key_pressed("escape")
elif button=='pause': self.key_pressed('p')
# kill or error
def terminate(self,reason):
if self.shower<>None:
self.mon.log(self,"sent terminate to shower")
self.shower.terminate(reason)
elif self.player<>None:
self.mon.log(self,"sent terminate to player")
self.player.terminate(reason)
else:
self._end(reason,'terminated without terminating shower or player')
# *********************
# INTERNAL FUNCTIONS
# ********************
# *********************
# language resources
# *********************
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
# timers may be running so need terminate
self.terminate("error")
else:
return value
# *********************
# Sequencing
# *********************
def _timeout_menu(self):
self._end('normal','menu timeout')
return
# finish the player for killing, error or normally
# this may be called directly sub/child shows or players are not running
# if they might be running then need to call terminate.
def _end(self,reason,message):
self.canvas.delete(ALL)
self.canvas.update_idletasks( )
self.mon.log(self,"Ending menushow: "+ self.show['show-ref'])
if self.menu_timeout_running<>None:
self.canvas.after_cancel(self.menu_timeout_running)
self.menu_timeout_running=None
self.end_callback(reason,message)
self=None
return
def _next(self):
self._highlight_menu_entry(self.menu_index,False)
self.medialist.next()
if self.menu_index==self.menu_length-1:
self.menu_index=0
else:
self.menu_index+=1
self._highlight_menu_entry(self.menu_index,True)
def _previous(self):
self._highlight_menu_entry(self.menu_index,False)
if self.menu_index==0:
self.menu_index=self.menu_length-1
else:
self.menu_index-=1
self.medialist.previous()
self._highlight_menu_entry(self.menu_index,True)
# *********************
# Dispatching to Players
# *********************
def complete_path(self,selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Track to play is: "+ track_file)
return track_file
def _play_selected_track(self,selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
#remove menu and show working.....
self.canvas.delete(ALL)
if self.menu_timeout_running<>None:
self.canvas.after_cancel(self.menu_timeout_running)
self.menu_timeout_running=None
self._display_eggtimer(self.resource('menushow','m01'))
# dispatch track by type
self.player=None
self.shower=None
track_type = selected_track['type']
self.mon.log(self,"Track type is: "+ track_type)
if track_type=="video":
# create a videoplayer
track_file=self.complete_path(selected_track)
self.player=VideoPlayer(self.canvas,self.show,selected_track)
self.player.play(track_file,
self._end_player,
self._delete_eggtimer,
enable_menu=False)
elif track_type=="image":
# images played from menus don't have children
enable_child=False
track_file=self.complete_path(selected_track)
self.player=ImagePlayer(self.canvas,self.show,selected_track)
self.player.play(track_file,
self._end_player,
self._delete_eggtimer,
enable_menu=enable_child,
)
elif track_type=="message":
# bit odd because MessagePlayer is used internally to display text.
text=selected_track['text']
self.player=MessagePlayer(self.canvas,self.show,selected_track)
self.player.play(text,
self._end_player,
self._delete_eggtimer,
enable_menu=False
)
elif track_type=="show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >=0:
self.showlist.select(index)
selected_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ selected_track['sub-show'])
self._end("Unknown show")
if selected_show['type']=="mediashow":
self.shower= MediaShow(selected_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.shower.play(self._end_shower,top=False,command='nil')
elif selected_show['type']=="liveshow":
self.shower= LiveShow(selected_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower,top=False,command='nil')
elif selected_show['type']=="menu":
self.shower= MenuShow(selected_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.shower.play(self._end_shower,top=False,command='nil')
else:
self.mon.err(self,"Unknown Show Type: "+ selected_show['type'])
self._end("Unknown show type")
else:
self.mon.err(self,"Unknown Track Type: "+ track_type)
self._end("Unknown track type")
# callback from when player ends
def _end_player(self,reason,message):
self.mon.log(self,"Returned from player with message: "+ message)
self.player=None
if reason in("killed","error"):
self._end(reason,message)
self._display_eggtimer(self.resource('menushow','m02'))
self._what_next(message)
# callback from when shower ends
def _end_shower(self,reason,message):
self.mon.log(self,"Returned from shower with message: "+ message)
self.shower=None
if message in ("killed","error"):
self._end(reason,message)
self._display_eggtimer(self.resource('menushow','m03'))
self._what_next(message)
# at the end of a track just re-display the menu with the original callback from the menu
def _what_next(self,message):
self.mon.log(self,"Re-displaying menu")
self.play(self.end_callback,top=self.top)
# *********************
# Displaying things
# *********************
def _display_background(self):
pil_menu_img=PIL.Image.open(self.menu_img_file)
# adjust brightness and rotate (experimental)
# enh=PIL.ImageEnhance.Brightness(pil_menu_img)
# pil_menu_img=enh.enhance(0.1)
# pil_menu_img=pil_menu_img.rotate(45)
self.menu_background = PIL.ImageTk.PhotoImage(pil_menu_img)
self.drawn = self.canvas.create_image(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
image=self.menu_background,
anchor=CENTER)
def _display_video_titles(self):
self.menu_length=1
self.menu_entry_id=[]
x=int(self.show['menu-x'])
y=int(self.show['menu-y'])
self.medialist.start()
while True:
id=self.canvas.create_text(x,y,anchor=NW,
text="* "+self.medialist.selected_track()['title'],
fill=self.show['entry-colour'],
font=self.show['entry-font'])
self.menu_entry_id.append(id)
y=y + int(self.show['menu-spacing'])
if self.medialist.at_end():
break
self.menu_length+=1
self.medialist.next()
# select and highlight the first entry
self.medialist.start()
self.menu_index=0
self._highlight_menu_entry(self.menu_index,True)
# self.medialist.print_list()
def _highlight_menu_entry(self,index,state):
if state==True:
self.canvas.itemconfig(self.menu_entry_id[index],fill=self.show['entry-select-colour'])
else:
self.canvas.itemconfig(self.menu_entry_id[index],fill=self.show['entry-colour'])
def _display_eggtimer(self,text):
self.canvas.create_text(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
text= text,
fill='white',
font="Helvetica 20 bold")
self.canvas.update_idletasks( )
def _delete_eggtimer(self):
self.canvas.delete(ALL)
class MessagePlayer:
""" Displays lines of text in the centre of a coloured screen with background image
See pp_imageplayer for common software design description
"""
# *******************
# external commands
# *******************
def __init__(self,show_id,root,canvas,show_params,track_params,pp_dir,pp_home,pp_profile):
self.mon=Monitor()
self.mon.on()
self.root=root
self.canvas=canvas
self.show_id=show_id
self.track_params=track_params
self.show_params=show_params
self.pp_dir=pp_dir
self.pp_home=pp_home
self.pp_profile=pp_profile
# get config from medialist if there.
if 'duration' in self.track_params and self.track_params['duration']<>"":
self.duration= int(self.track_params['duration'])
else:
self.duration= int(self.show_params['duration'])
# get background image from profile.
self.background_file=''
if self.track_params['background-image']<>"":
self.background_file= self.track_params['background-image']
else:
if self.track_params['display-show-background']=='yes':
self.background_file= self.show_params['background-image']
# get background colour from profile.
if self.track_params['background-colour']<>"":
self.background_colour= self.track_params['background-colour']
else:
self.background_colour= self.show_params['background-colour']
self.centre_x = int(self.canvas['width'])/2
self.centre_y = int(self.canvas['height'])/2
# keep tick as an integer sub-multiple of 1 second
self.tick = 100 # tick time for image display (milliseconds)
self.dwell = 1000*self.duration
#get animation instructions from profile
self.animate_begin_text=self.track_params['animate-begin']
self.animate_end_text=self.track_params['animate-end']
# open the plugin Manager
self.pim=PluginManager(self.show_id,self.root,self.canvas,self.show_params,self.track_params,self.pp_dir,self.pp_home,self.pp_profile)
#create an instance of PPIO so we can create gpio events
self.ppio = PPIO()
def play(self,
text,
showlist,
end_callback,
ready_callback,
enable_menu=False):
# instantiate arguments
self.text=text
self.showlist=showlist
self.end_callback=end_callback
self.ready_callback=ready_callback
self.enable_menu=enable_menu
#init state and signals
self.quit_signal=False
self.tick_timer=None
self.drawn=None
# create an instance of showmanager so we can control concurrent shows
self.show_manager=ShowManager(self.show_id,self.showlist,self.show_params,self.root,self.canvas,self.pp_dir,self.pp_profile,self.pp_home)
# Control other shows at beginning
reason,message=self.show_manager.show_control(self.track_params['show-control-begin'])
if reason == 'error':
self.end_callback(reason,message)
self=None
else:
#display content
reason,message=self.display_content()
if reason == 'error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# create animation events
reason,message=self.ppio.animate(self.animate_begin_text,id(self))
if reason=='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# start text display
self.start_dwell()
def terminate(self,reason):
# no lower level things to terminate so just go to end
self.end(reason,'kill or error')
def get_links(self):
return self.track_params['links']
def input_pressed(self,symbol):
self.mon.log(self,"input received: "+symbol)
if symbol=='stop':
self.stop()
# *******************
# internal functions
# *******************
def stop(self):
self.quit_signal=True
# *******************
# sequencing
# *******************
def start_dwell(self):
self.dwell_counter=0
if self.ready_callback<>None:
self.ready_callback()
self.tick_timer=self.canvas.after(self.tick, self.do_dwell)
def do_dwell(self):
if self.quit_signal == True:
self.mon.log(self,"quit received")
self.end('normal','user quit')
else:
if self.dwell<>0:
self.dwell_counter=self.dwell_counter+1
if self.dwell_counter==self.dwell/self.tick:
self.end('normal','finished')
else:
self.tick_timer=self.canvas.after(self.tick, self.do_dwell)
else:
self.tick_timer=self.canvas.after(self.tick, self.do_dwell)
# *****************
# ending the player
# *****************
def end(self,reason,message):
# stop the plugin
if self.track_params['plugin']<>'':
self.pim.stop_plugin()
# abort the timer
if self.tick_timer<>None:
self.canvas.after_cancel(self.tick_timer)
self.tick_timer=None
if reason in ('error','killed'):
self.end_callback(reason,message)
self=None
else:
# normal end so do show control
# Control concurrent shows at end
reason,message=self.show_manager.show_control(self.track_params['show-control-end'])
if reason =='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# clear events list for this track
if self.track_params['animate-clear']=='yes':
self.ppio.clear_events_list(id(self))
# create animation events for ending
reason,message=self.ppio.animate(self.animate_end_text,id(self))
if reason=='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
self.end_callback('normal',"track has terminated or quit")
self=None
# *****************
# displaying things
# *****************
def display_content(self):
if self.background_colour<>'':
self.canvas.config(bg=self.background_colour)
self.canvas.delete('pp-content')
if self.background_file<>'':
self.background_img_file = self.complete_path(self.background_file)
if not os.path.exists(self.background_img_file):
self.mon.err(self,"Message background file not found: "+ self.background_img_file)
self.end('error',"Message background file not found")
else:
pil_background_img=PIL.Image.open(self.background_img_file)
self.background = PIL.ImageTk.PhotoImage(pil_background_img)
self.drawn = self.canvas.create_image(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
image=self.background,
anchor=CENTER,
tag='pp-content')
# display show text if enabled
if self.show_params['show-text']<> ''and self.track_params['display-show-text']=='yes':
self.canvas.create_text(int(self.show_params['show-text-x']),int(self.show_params['show-text-y']),
anchor=NW,
text=self.show_params['show-text'],
fill=self.show_params['show-text-colour'],
font=self.show_params['show-text-font'],
tag='pp-content')
# display track text if enabled
if self.track_params['track-text']<> '':
self.canvas.create_text(int(self.track_params['track-text-x']),int(self.track_params['track-text-y']),
anchor=NW,
text=self.track_params['track-text'],
fill=self.track_params['track-text-colour'],
font=self.track_params['track-text-font'],
tag='pp-content')
# execute the plugin if required
if self.track_params['plugin']<>'':
reason,message,self.text = self.pim.do_plugin(self.text,self.track_params['plugin'])
if reason <> 'normal':
return reason,message
# display message text
if self.track_params['message-x']<>'':
self.canvas.create_text(int(self.track_params['message-x']), int(self.track_params['message-y']),
text=self.text.rstrip('\n'),
fill=self.track_params['message-colour'],
font=self.track_params['message-font'],
justify=self.track_params['message-justify'],
anchor = 'nw',
tag='pp-content')
else:
self.canvas.create_text(int(self.canvas['width'])/2, int(self.canvas['height'])/2,
text=self.text.rstrip('\n'),
fill=self.track_params['message-colour'],
font=self.track_params['message-font'],
justify=self.track_params['message-justify'],
tag='pp-content')
# display instructions (hint)
if self.enable_menu==True:
self.canvas.create_text(int(self.show_params['hint-x']),
int(self.show_params['hint-y']),
text=self.show_params['hint-text'],
fill=self.show_params['hint-colour'],
font=self.show_params['hint-font'],
anchor=NW,
tag='pp-content')
self.canvas.tag_raise('pp-click-area')
self.canvas.update_idletasks( )
return 'normal',''
# *****************
# utilities
# *****************
def complete_path(self,track_file):
# complete path of the filename of the selected entry
if track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Background image is "+ track_file)
return track_file
class LiveShow:
""" plays a set of tracks the content of which is dynamically specified by plaacing track files
in one of two directories. Tracks are played in file leafname alphabetical order.
Can be interrupted
"""
# *******************
# External interface
# ********************
def __init__(self,
show_params,
root,
canvas,
showlist,
pp_dir,
pp_home,
pp_profile):
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show_params =show_params
self.showlist=showlist
self.root=root
self.canvas=canvas
self.pp_dir=pp_dir
self.pp_home=pp_home
self.pp_profile=pp_profile
# open resources
self.rr=ResourceReader()
#create and instance of TimeOfDay scheduler so we can add events
self.tod=TimeOfDay()
# Init variables
self.player=None
self.shower=None
self.end_liveshow_signal=False
self.end_trigger_signal= False
self.play_child_signal = False
self.error=False
self.egg_timer=None
self.duration_timer=None
self.state='closed'
self.livelist=None
self.new_livelist= None
def play(self,show_id,end_callback,ready_callback, top=False,command='nil'):
global defaultDur
if defaultDur == None:
defaultDur = self.showlist.get_dur()
#instantiate the arguments
self.show_id=show_id
self.end_callback=end_callback
self.ready_callback=ready_callback
self.top=top
self.mon.log(self,"Starting show: " + self.show_params['show-ref'])
# check data files are available.
self.media_file = self.pp_profile + os.sep + self.show_params['medialist']
if not os.path.exists(self.media_file):
self.mon.err(self,"Medialist file not found: "+ self.media_file)
self.end_liveshow_signal=True
self.options=command_options()
self.pp_live_dir1 = self.pp_home + os.sep + 'pp_live_tracks'
if not os.path.exists(self.pp_live_dir1):
os.mkdir(self.pp_live_dir1)
os.mkdir(self.pp_live_dir1+os.sep+ 'Archive')
self.pp_live_dir2=''
if self.options['liveshow'] <>"":
self.pp_live_dir2 = self.options['liveshow']
if not os.path.exists(self.pp_live_dir2):
self.mon.err(self,"live tracks directory not found " + self.pp_live_dir2)
self.end('error',"live tracks directory not found")
#create a medialist for the liveshow and read it.
# it should be empty of anonymous tracks but read it to check its version.
self.medialist=MediaList()
if self.medialist.open_list(self.media_file,self.showlist.sissue())==False:
self.mon.err(self,"Version of medialist different to Pi Presents")
self.end('error',"Version of medialist different to Pi Presents")
#get control bindings for this show if top level
controlsmanager=ControlsManager()
if self.top==True:
self.controls_list=controlsmanager.default_controls()
# and merge in controls from profile
self.controls_list=controlsmanager.merge_show_controls(self.controls_list,self.show_params['controls'])
#set up the time of day triggers for the show
if self.show_params['trigger-start']in('time','time-quiet'):
error_text=self.tod.add_times(self.show_params['trigger-start-time'],id(self),self.tod_start_callback,self.show_params['trigger-start'])
if error_text<>'':
self.mon.err(self,error_text)
self.end('error',error_text)
if self.show_params['trigger-end']=='time':
error_text=self.tod.add_times(self.show_params['trigger-end-time'],id(self),self.tod_end_callback,'n/a')
if error_text<>'':
self.mon.err(self,error_text)
self.end('error',error_text)
if self.show_params['trigger-end']=='duration':
error_text=self.calculate_duration(self.show_params['trigger-end-time'])
if error_text<>'':
self.mon.err(self,error_text)
self.end('error',error_text)
self.wait_for_trigger()
def managed_stop(self):
# if next lower show eor player is running pass down to stop the show/track
if self.shower<>None:
self.shower.managed_stop()
else:
self.end_liveshow_signal=True
if self.player<>None:
self.player.input_pressed('stop')
# kill or error
def terminate(self,reason):
if self.shower<>None:
self.shower.terminate(reason)
elif self.player<>None:
self.player.terminate(reason)
else:
self.end(reason,'terminated without terminating shower or player')
# respond to key presses.
def input_pressed(self,symbol,edge,source):
self.mon.log(self,"received key: " + symbol)
if self.show_params['disable-controls']=='yes':
return
# if at top convert symbolic name to operation otherwise lower down we have received an operation
# look through list of standard symbols to find match (symbolic-name, function name) operation =lookup (symbol
if self.top==True:
operation=self.lookup_control(symbol,self.controls_list)
else:
operation=symbol
# print 'operation',operation
# if no match for symbol against standard operations then return
if operation=='':
return
else:
#service the standard inputs for this show
if operation=='stop':
# if next lower show eor player is running pass down to stop the show/track
# ELSE stop this show except for exceptions
if self.shower<>None:
self.shower.input_pressed('stop',edge,source)
elif self.player<>None:
self.player.input_pressed('stop')
else:
# not at top so stop the show
if self.top == False:
self.end_liveshow_signal=True
else:
pass
elif operation in ('up','down'):
# if child or sub-show is running and is a show pass to show, track does not use up/down
if self.shower<>None:
self.shower.input_pressed(operation,edge,source)
elif operation=='play':
# if child show or sub-show is running and is show - pass down
# ELSE use Return to start child
if self.shower<>None:
self.shower.input_pressed(operation,edge,source)
else:
if self.show_params['has-child']=="yes":
self.play_child_signal=True
if self.player<>None:
self.player.input_pressed("stop")
elif operation == 'pause':
# pass down if show or track running.
if self.shower<>None:
self.shower.input_pressed(operation,edge,source)
elif self.player<>None:
self.player.input_pressed(operation)
elif operation[0:4]=='omx-' or operation[0:6]=='mplay-':
if self.player<>None:
self.player.input_pressed(operation)
def lookup_control(self,symbol,controls_list):
for control in controls_list:
if symbol == control[0]:
return control[1]
return ''
# ***************************
# Constructing Livelist
# ***************************
def livelist_add_track(self,afile):
(root,title)=os.path.split(afile)
(root_plus,ext)= os.path.splitext(afile)
if ext.lower() in PPdefinitions.IMAGE_FILES:
self.livelist_new_track(PPdefinitions.new_tracks['image'],{'title':title,'track-ref':'','location':afile})
if ext.lower() in PPdefinitions.VIDEO_FILES:
self.livelist_new_track(PPdefinitions.new_tracks['video'],{'title':title,'track-ref':'','location':afile})
if ext.lower() in PPdefinitions.AUDIO_FILES:
self.livelist_new_track(PPdefinitions.new_tracks['audio'],{'title':title,'track-ref':'','location':afile})
if ext.lower() in PPdefinitions.WEB_FILES:
self.livelist_new_track(PPdefinitions.new_tracks['web'],{'title':title,'track-ref':'','location':afile})
if ext.lower()=='.cfg':
self.livelist_new_plugin(afile,title)
def livelist_new_plugin(self,plugin_cfg,title):
# read the file which is a plugin cfg file into a dictionary
self.plugin_config = ConfigParser.ConfigParser()
self.plugin_config.read(plugin_cfg)
self.plugin_params = dict(self.plugin_config.items('plugin'))
# create a new livelist entry of a type specified in the config file with plugin
self.livelist_new_track(PPdefinitions.new_tracks[self.plugin_params['type']],{'title':title,'track-ref':'','plugin':plugin_cfg,'location':plugin_cfg})
def livelist_new_track(self,fields,values):
new_track=fields
self.new_livelist.append(copy.deepcopy(new_track))
last = len(self.new_livelist)-1
self.new_livelist[last].update(values)
def new_livelist_create(self):
self.new_livelist=[]
if os.path.exists(self.pp_live_dir1):
for file in os.listdir(self.pp_live_dir1):
file = self.pp_live_dir1 + os.sep + file
(root_file,ext_file)= os.path.splitext(file)
if (ext_file.lower() in PPdefinitions.IMAGE_FILES+PPdefinitions.VIDEO_FILES+PPdefinitions.AUDIO_FILES+PPdefinitions.WEB_FILES) or (ext_file.lower()=='.cfg'):
self.livelist_add_track(file)
if os.path.exists(self.pp_live_dir2):
for file in os.listdir(self.pp_live_dir2):
file = self.pp_live_dir2 + os.sep + file
(root_file,ext_file)= os.path.splitext(file)
if ext_file.lower() in PPdefinitions.IMAGE_FILES+PPdefinitions.VIDEO_FILES+PPdefinitions.AUDIO_FILES+PPdefinitions.WEB_FILES or (ext_file.lower()=='.cfg'):
self.livelist_add_track(file)
self.new_livelist= sorted(self.new_livelist, key= lambda track: os.path.basename(track['location']).lower())
# print 'LIVELIST'
# for it in self.new_livelist:
# print 'type: ', it['type'], 'loc: ',it['location'],'\nplugin cfg: ', it['plugin']
# print ''
def livelist_replace_if_changed(self):
self.new_livelist_create()
if self.new_livelist<>self.livelist:
self.livelist=copy.deepcopy(self.new_livelist)
self.livelist_index = 1
def livelist_next(self):
skip = False
if self.livelist_index== len(self.livelist)-1:
self.livelist_index=0
else:
self.livelist_index +=1
#Author Joe Houng
#get properties from file name if it exists
runningFileName = self.livelist[self.livelist_index]['title']
fileNameTupel = ProcessFileName(runningFileName)
dur = fileNameTupel[0]
startDate = fileNameTupel[1]
endDate = fileNameTupel[2]
if dur == "":
#duration not specified in filename
global defaultDur
dur = defaultDur
if startDate != "":
curDate = time.strftime('%Y-%m-%d-%H-%M-%S')
if startDate > curDate:
print dur
self.livelist_index +=1
skip = True
dur = defaultDur
if skip == False:
if endDate != "":
if endDate <= time.strftime('%Y-%m-%d-%H-%M-%S'):
try:
toArchive(runningFileName, self.pp_home)
except IOError:
None
self.showlist.assign_dur(dur);
skip = False
# ***************************
# Sequencing
# ***************************
def wait_for_trigger(self):
self.state='waiting'
if self.ready_callback<>None:
self.ready_callback()
self.mon.log(self,"Waiting for trigger: "+ self.show_params['trigger-start'])
if self.show_params['trigger-start'] in ('time','time-quiet'):
# if next show is this one display text
next_show=self.tod.next_event_time()
if next_show[3]<>True:
if next_show[1]=='tomorrow':
text = self.resource('liveshow','m04')
else:
text = self.resource('liveshow','m03')
text=text.replace('%tt',next_show[0])
self.display_message(self.canvas,'text',text,0,self.play_first_track)
elif self.show_params['trigger-start']=="start":
self.play_first_track()
else:
self.mon.err(self,"Unknown trigger: "+ self.show_params['trigger-start'])
self.end('error',"Unknown trigger type")
# callbacks from time of day scheduler
def tod_start_callback(self):
if self.state=='waiting' and self.show_params['trigger-start']in('time','time-quiet'):
self.play_first_track()
def tod_end_callback(self):
if self.state=='playing' and self.show_params['trigger-end'] in ('time','duration'):
self.end_trigger_signal=True
if self.shower<>None:
self.shower.input_pressed('stop','front','')
elif self.player<>None:
self.player.input_pressed('stop')
def play_first_track(self):
self.state='playing'
skip = False
# start duration timer
if self.show_params['trigger-end']=='duration':
# print 'set alarm ', self.duration
self.duration_timer = self.canvas.after(self.duration*1000,self.tod_end_callback)
self.new_livelist_create()
self.livelist = copy.deepcopy(self.new_livelist)
self.livelist_index = 0
#Author Joe Houng
#get properties from file name if it exists
runningFileName = self.livelist[self.livelist_index]['title']
fileNameTupel = ProcessFileName(runningFileName)
dur = fileNameTupel[0]
startDate = fileNameTupel[1]
endDate = fileNameTupel[2]
if dur == "":
#duration not specified in filename
global defaultDur
dur = defaultDur
if startDate != "":
curDate = time.strftime('%Y-%m-%d')
if startDate > curDate:
print dur
self.livelist_index +=1
skip = True
if skip == False:
if endDate != "":
if endDate <= time.strftime('%Y-%m-%d'):
toArchive(runningFileName)
self.showlist.assign_dur(dur);
skip = False
self.play_track()
def play_track(self):
self.livelist_replace_if_changed()
if len(self.livelist)>0:
self.play_selected_track(self.livelist[self.livelist_index])
else:
self.display_message(self.canvas,None,self.resource('liveshow','m01'),5,self.what_next)
def what_next(self):
# end of show time trigger
if self.end_trigger_signal==True:
self.end_trigger_signal=False
if self.top==True:
self.state='waiting'
self.wait_for_trigger()
else:
# not at top so stop the show
self.end('normal','sub-show end time trigger')
# user wants to end
elif self.end_liveshow_signal==True:
self.end_liveshow_signal=False
self.end('normal',"show ended by user")
# play child?
elif self.play_child_signal == True:
self.play_child_signal=False
index = self.medialist.index_of_track('pp-child-show')
if index >=0:
#don't select the track as need to preserve mediashow sequence.
child_track=self.medialist.track(index)
self.display_eggtimer(self.resource('liveshow','m02'))
self.play_selected_track(child_track)
else:
self.mon.err(self,"Child show not found in medialist: "+ self.show_params['pp-child-show'])
self.end('error',"child show not found in medialist")
# otherwise loop to next track
else:
self.livelist_next()
self.play_track()
# ***************************
# Dispatching to Players/Shows
# ***************************
def ready_callback(self):
self.delete_eggtimer()
def play_selected_track(self,selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected_track is a dictionary for the track/show
"""
self.canvas.delete('pp-content')
# is menu required
if self.show_params['has-child']=="yes":
enable_child=True
else:
enable_child=False
#dispatch track by type
self.player=None
self.shower=None
track_type = selected_track['type']
self.mon.log(self,"Track type is: "+ track_type)
if track_type=="image":
track_file=self.complete_path(selected_track)
# images played from menus don't have children
self.player=ImagePlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type=="video":
# create a videoplayer
track_file=self.complete_path(selected_track)
self.player=VideoPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type=="audio":
# create a audioplayer
track_file=self.complete_path(selected_track)
self.player=AudioPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type=="message":
# bit odd because MessagePlayer is used internally to display text.
text=selected_track['text']
self.player=MessagePlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(text,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child
)
elif track_type=="web":
# create a browser
track_file=self.complete_path(selected_track)
self.player=BrowserPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type=="show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >=0:
self.showlist.select(index)
selected_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ selected_track['sub-show'])
self.end_liveshow_signal=True
if selected_show['type']=="mediashow":
self.shower= MediaShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="menu":
self.shower= MenuShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="radiobuttonshow":
self.shower= RadioButtonShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="hyperlinkshow":
self.shower= HyperlinkShow(selected_show,
sef.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
else:
self.mon.err(self,"Unknown Show Type: "+ selected_show['type'])
self.end_liveshow_signal=True
else:
self.mon.err(self,"Unknown Track Type: "+ track_type)
self.end_liveshow_signal=True
def end_shower(self,show_id,reason,message):
self.mon.log(self,"Returned from shower with message: "+ message)
self.shower=None
if reason in("killed","error"):
self.end(reason,message)
else:
self.what_next()
def end_player(self,reason,message):
self.mon.log(self,"Returned from player with message: "+ message)
self.player=None
if reason in("killed","error"):
self.end(reason,message)
else:
self.what_next()
# ***************************
# end of show
# ***************************
def end(self,reason,message):
self.end_liveshow_signal=False
self.mon.log(self,"Ending Liveshow: "+ self.show_params['show-ref'])
self.tidy_up()
self.end_callback(self.show_id,reason,message)
self=None
def tidy_up(self):
if self.duration_timer<>None:
self.canvas.after_cancel(self.duration_timer)
self.duration_timer=None
#clear outstanding time of day events for this show
# self.tod.clear_times_list(id(self))
# ******************************
# Displaying things
# *********************************
def display_eggtimer(self,text):
self.egg_timer=self.canvas.create_text(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
text= text,
fill='white',
font="Helvetica 20 bold",
tag='pp-eggtimer')
self.canvas.update_idletasks( )
def delete_eggtimer(self):
self.canvas.delete('pp-eggtimer')
self.canvas.update_idletasks( )
# used to display internal messages in situations where a medialist entry could not be used.
def display_message(self,canvas,source,content,duration,display_message_callback):
self.display_message_callback=display_message_callback
tp={'duration':duration,'message-colour':'white','message-font':'Helvetica 20 bold','message-justify':'left',
'background-colour':'','background-image':'','show-control-begin':'','show-control-end':'',
'animate-begin':'','animate-clear':'','animate-end':'','message-x':'','message-y':'',
'display-show-background':'no','display-show-text':'no','show-text':'','track-text':'',
'plugin':''}
self.player=MessagePlayer(self.show_id,self.root,canvas,tp,tp,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(content,self.showlist,self.display_message_end,None)
def display_message_end(self,reason,message):
self.player=None
if reason in ("killed",'error'):
self.end(reason,message)
else:
self.display_message_callback()
# ******************************
# utilities
# *********************************
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
self.terminate("error",'Cannot find resource')
else:
return value
def complete_path(self,selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file<>'' and track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Track to play is: "+ track_file)
return track_file
def calculate_duration(self,line):
fields=line.split(':')
if len(fields)==1:
secs=fields[0]
minutes='0'
hours='0'
if len(fields)==2:
secs=fields[1]
minutes=fields[0]
hours='0'
if len(fields)==3:
secs=fields[2]
minutes=fields[1]
hours=fields[0]
self.duration=3600*long(hours)+60*long(minutes)+long(secs)
return ''
class ImagePlayer:
""" Displays an image on a canvas for a period of time. Image display can be interrupted
Implements animation of transitions but Pi is too slow without GPU aceleration."""
# slide state constants
NO_SLIDE = 0
SLIDE_IN = 1
SLIDE_DWELL= 2
SLIDE_OUT= 3
# *******************
# external commands
# *******************
def __init__(self,canvas,cd,track_params):
"""
canvas - the canvas onto which the image is to be drawn
cd - dictionary of show parameters
track_params - disctionary of track paramters
"""
self.mon=Monitor()
self.mon.on()
self.canvas=canvas
self.cd=cd
self.track_params=track_params
# open resources
self.rr=ResourceReader()
# get config from medialist if there.
if 'duration' in self.track_params and self.track_params['duration']<>"":
self.duration= int(self.track_params['duration'])
else:
self.duration= int(self.cd['duration'])
if 'transition' in self.track_params and self.track_params['transition']<>"":
self.transition= self.track_params['transition']
else:
self.transition= self.cd['transition']
# keep dwell and porch as an integer multiple of tick
self.porch = 1000 #length of pre and post porches for an image (milliseconds)
self.tick = 100 # tick time for image display (milliseconds)
self.dwell = (1000*self.duration)- (2*self.porch)
if self.dwell<0: self.dwell=0
self.centre_x = int(self.canvas['width'])/2
self.centre_y = int(self.canvas['height'])/2
def play(self,
track,
end_callback,
ready_callback,
enable_menu=False,
starting_callback=None,
playing_callback=None,
ending_callback=None):
# instantiate arguments
self.track=track
self.enable_menu=enable_menu
self.ready_callback=ready_callback
self.end_callback=end_callback
#init state and signals
self.state=ImagePlayer.NO_SLIDE
self.quit_signal=False
self.kill_required_signal=False
self.error=False
self._tick_timer=None
self.drawn=None
self.paused=False
self.pause_text=None
if os.path.exists(self.track)==True:
self.pil_image=PIL.Image.open(self.track)
# adjust brightness and rotate (experimental)
# pil_image_enhancer=PIL.ImageEnhance.Brightness(pil_image)
# pil_image=pil_image_enhancer.enhance(0.1)
# pil_image=pil_image.rotate(45)
# tk_image = PIL.ImageTk.PhotoImage(pil_image)
# resize image to fit canvas
canvas_width = self.canvas.winfo_width()
canvas_height = self.canvas.winfo_height()
if int(canvas_width) == 1 and int(canvas_height) == 1:
canvas_width = self.canvas.winfo_reqwidth()
canvas_height = self.canvas.winfo_reqheight()
image_ratio = float(self.pil_image.size[0]) / float(self.pil_image.size[1])
canvas_ratio = float(canvas_width) / float(canvas_height)
if image_ratio < canvas_ratio:
image_height = canvas_height
image_width = self.pil_image.size[0] * canvas_height / self.pil_image.size[1]
elif image_ratio > canvas_ratio:
image_width = canvas_width
image_height = self.pil_image.size[1] * canvas_width / self.pil_image.size[0]
else:
image_width = canvas_width
image_height = canvas_height
self.pil_image = self.pil_image.resize((int(image_width), int(image_height)), PIL.Image.ANTIALIAS)
else:
self.pil_image=None
# display 'Out of Order' for 7 seconds
self.dwell = (1000*7)- (2*self.porch)
if self.dwell<0: self.dwell=0
# and start image rendering
self._start_front_porch()
def key_pressed(self,key_name):
if key_name=='':
return
elif key_name in ('p',' '):
self.pause()
elif key_name=='escape':
self._stop()
return
def button_pressed(self,button,edge):
if button =='pause':
self.pause()
elif button=='stop':
self._stop()
return
def terminate(self,reason):
if reason=='error':
self.error=True
self.quit_signal=True
else:
self.kill_required_signal=True
self.quit_signal=True
def pause(self):
if not self.paused:
self.paused = True
else:
self.paused=False
# *******************
# internal functions
# *******************
def _stop(self):
self.quit_signal=True
def _error(self):
self.error=True
self.quit_signal=True
#called when back porch has completed or quit signal is received
def _end(self,reason,message):
if self._tick_timer<>None:
self.canvas.after_cancel(self._tick_timer)
self._tick_timer=None
self.quit_signal=False
# self.canvas.delete(ALL)
self.canvas.update_idletasks( )
self.state=self.NO_SLIDE
if self.error==True:
self.end_callback("error",message)
self=None
elif self.kill_required_signal==True:
self.end_callback("killed",message)
self=None
else:
self.end_callback(reason,message)
self=None
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
self._error()
else:
return value
def _start_front_porch(self):
self.state=ImagePlayer.SLIDE_IN
self.porch_counter=0
if self.ready_callback<>None: self.ready_callback()
if self.transition=="cut":
#just display the slide full brightness. No need for porch but used for symmetry
if self.pil_image<>None:
self.tk_img=PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x, self.centre_y,
image=self.tk_img, anchor=CENTER)
elif self.transition=="fade":
#experimental start black and increase brightness (controlled by porch_counter).
self._display_image()
elif self.transition == "slide":
#experimental, start in middle and move to right (controlled by porch_counter)
if self.pil_image<>None:
self.tk_img=PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x, self.centre_y,
image=self.tk_img, anchor=CENTER)
elif self.transition=="crop":
#experimental, start in middle and crop from right (controlled by porch_counter)
if self.pil_image<>None:
self.tk_img=PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x, self.centre_y,
image=self.tk_img, anchor=CENTER)
self._tick_timer=self.canvas.after(self.tick, self._do_front_porch)
def _do_front_porch(self):
if self.quit_signal == True:
self._end('normal','user quit')
else:
self.porch_counter=self.porch_counter+1
# print "doing slide front porch " +str(self.porch_counter)
self._display_image()
if self.porch_counter==self.porch/self.tick:
self._start_dwell()
else:
self._tick_timer=self.canvas.after(self.tick,self._do_front_porch)
def _start_dwell(self):
self.state=ImagePlayer.SLIDE_DWELL
self.dwell_counter=0
self._tick_timer=self.canvas.after(self.tick, self._do_dwell)
def _do_dwell(self):
if self.quit_signal == True:
self.mon.log(self,"quit received")
self._end('normal','user quit')
else:
if self.paused == False:
self.dwell_counter=self.dwell_counter+1
# one time flipping of pause text
if self.paused==True and self.pause_text==None:
self.pause_text=self.canvas.create_text(100,100, anchor=NW,
text=self.resource('imageplayer','m01'),
fill="white",
font="arial 25 bold")
self.canvas.update_idletasks( )
if self.paused==False and self.pause_text<>None:
self.canvas.delete(self.pause_text)
self.pause_text=None
self.canvas.update_idletasks( )
if self.dwell_counter==self.dwell/self.tick:
self._start_back_porch()
else:
self._tick_timer=self.canvas.after(self.tick, self._do_dwell)
def _start_back_porch(self):
self.state=ImagePlayer.SLIDE_OUT
self.porch_counter=self.porch/self.tick
if self.transition=="cut":
# just keep displaying the slide full brightness.
# No need for porch but used for symmetry
pass
elif self.transition=="fade":
#experimental start full and decrease brightness (controlled by porch_counter).
self._display_image()
elif self.transition== "slide":
#experimental, start in middle and move to right (controlled by porch_counter)
if self.pil_image<>None:
self.tk_img=PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x, self.centre_y,
image=self.tk_img, anchor=CENTER)
elif self.transition =="crop":
#experimental, start in middle and crop from right (controlled by porch_counter)
if self.pil_image<>None:
self.tk_img=PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x, self.centre_y,
image=self.tk_img, anchor=CENTER)
self._tick_timer=self.canvas.after(self.tick, self._do_back_porch)
def _do_back_porch(self):
if self.quit_signal == True:
self._end('normal','user quit')
else:
self.porch_counter=self.porch_counter-1
self._display_image()
if self.porch_counter==0:
self._end('normal','finished')
else:
self._tick_timer=self.canvas.after(self.tick,self._do_back_porch)
def _display_image(self):
if self.transition=="cut":
pass
# all the methods below have incorrect code !!!
elif self.transition=="fade":
if self.pil_image<>None:
self.enh=PIL.ImageEnhance.Brightness(self.pil_image)
prop=float(self.porch_counter)/float(20) #????????
self.pil_img=self.enh.enhance(prop)
self.tk_img=PIL.ImageTk.PhotoImage(self.pil_img)
self.drawn = self.canvas.create_image(self.centre_x, self.centre_y,
image=self.tk_img, anchor=CENTER)
elif self.transition=="slide":
if self.pil_image<>None:
self.canvas.move(self.drawn,5,0)
elif self.transition=="crop":
if self.pil_image<>None:
self.crop= 10*self.porch_counter
self.pil_img=self.pil_image.crop((0,0,1000-self.crop,1080))
self.tk_img=PIL.ImageTk.PhotoImage(self.pil_img)
self.drawn = self.canvas.create_image(self.centre_x, self.centre_y,
image=self.tk_img, anchor=CENTER)
# display message if image is not available
if self.pil_image== None:
self.canvas.create_text(self.centre_x, self.centre_y,
text=self.resource('imageplayer','m02'),
fill='white',
font='arial 30 bold')
# display instructions if enabled
if self.enable_menu== True:
self.canvas.create_text(self.centre_x, int(self.canvas['height']) - int(self.cd['hint-y']),
text=self.cd['hint-text'],
fill=self.cd['hint-colour'],
font=self.cd['hint-font'])
# display show text if enabled
if self.cd['show-text']<> '':
self.canvas.create_text(int(self.cd['show-text-x']),int(self.cd['show-text-y']),
anchor=NW,
text=self.cd['show-text'],
fill=self.cd['show-text-colour'],
font=self.cd['show-text-font'])
# display track text if enabled
if self.track_params['track-text']<> '':
self.canvas.create_text(int(self.track_params['track-text-x']),int(self.track_params['track-text-y']),
anchor=NW,
text=self.track_params['track-text'],
fill=self.track_params['track-text-colour'],
font=self.track_params['track-text-font'])
self.canvas.update_idletasks( )
class LiveShow:
NEW_TRACKS={'image':{'title':'New Image','track-ref':'','type':'image','location':'','duration':'','transition':'',
'track-text':'','track-text-font':'','track-text-colour':'','track-text-x':'0','track-text-y':'0'},
'video':{'title':'New Video','track-ref':'','type':'video','location':'','omx-audio':''}}
IMAGE_FILES=('.gif','.jpg','.jpeg','.bmp','.png','.tif')
VIDEO_FILES=('.mp4','.mkv','.avi','.mp2','.wmv', '.vob')
AUDIO_FILES=('.mp3','.wav','.ogg')
# *******************
# External interface
# ********************
def __init__(self,
show,
canvas,
showlist,
pp_home,
pp_profile):
""" canvas - the canvas that the show is to be written on
showlist - used jus to check the issue of medialist against showlist
show - the dictionary for the show to be played
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show =show
self.showlist=showlist
self.canvas=canvas
self.pp_home=pp_home
self.pp_profile=pp_profile
# open resources
self.rr=ResourceReader()
# Init variables
self.player=None
self.shower=None
self._end_liveshow_signal=False
self._play_child_signal = False
self.error=False
self._livelist=None
self._new_livelist= None
def play(self,end_callback,ready_callback=None, top=False,command='nil'):
""" displays the liveshow
end_callback - function to be called when the liveshow exits
ready_callback - callback when liveshow is ready to display
top is True when the show is top level (i.e. run from start show)
"""
#instantiate the arguments
self._end_callback=end_callback
self._ready_callback=ready_callback
self.top=top
self.mon.log(self,"Starting show: " + self.show['show-ref'])
# check data files are available.
self.media_file = self.pp_profile + os.sep + self.show['medialist']
if not os.path.exists(self.media_file):
self.mon.err(self,"Medialist file not found: "+ self.media_file)
self._stop("Medialist file not found")
self.options=command_options()
self._pp_live_dir1 = self.pp_home + os.sep + 'pp_live_tracks'
if not os.path.exists(self._pp_live_dir1):
os.mkdir(self._pp_live_dir1)
self._pp_live_dir2=''
if self.options['liveshow'] <>"":
self._pp_live_dir2 = self.options['liveshow']
if not os.path.exists(self._pp_live_dir2):
self.mon.err(self,"live tracks directory not found " + self._pp_live_dir2)
self._end('error',"live tracks directory not found")
#create a medialist for the liveshow and read it.
# it should be empty of anonymous tracks but read it to check its version.
self.medialist=MediaList()
if self.medialist.open_list(self.media_file,self.showlist.sissue())==False:
self.mon.err(self,"Version of medialist different to Pi Presents")
self._end('error',"Version of medialist different to Pi Presents")
if self.ready_callback<>None:
self.ready_callback()
self._play_first_track()
# respond to key presses.
def key_pressed(self,key_name):
self.mon.log(self,"received key: " + key_name)
if key_name=='':
pass
elif key_name=='escape':
# if next lower show eor player is running pass down to stop the show/track
# ELSE stop this show except for exceptions
if self.shower<>None:
self.shower.key_pressed(key_name)
elif self.player<>None:
self.player.key_pressed(key_name)
else:
# not at top so stop the show
if self.top == False:
self._stop("exit show to higher level")
else:
pass
elif key_name in ('up','down'):
# if child or sub-show is running and is a show pass to show, track does not use up/down
if self.shower<>None:
self.shower.key_pressed(key_name)
elif key_name=='return':
# if child show or sub-show is running and is show - pass down
# ELSE use Return to start child
if self.shower<>None:
self.shower.key_pressed(key_name)
else:
if self.show['has-child']=="yes":
self._play_child()
elif key_name in ('p',' '):
# pass down if show or track running.
if self.shower<>None:
self.shower.key_pressed(key_name)
elif self.player<>None:
self.player.key_pressed(key_name)
def button_pressed(self,button,edge):
if button=='play': self.key_pressed("return")
elif button =='up': self.key_pressed("up")
elif button=='down': self.key_pressed("down")
elif button=='stop': self.key_pressed("escape")
elif button=='pause': self.key_pressed('p')
# kill or error
def terminate(self,reason):
if self.shower<>None:
self.mon.log(self,"sent terminate to shower")
self.shower.terminate(reason)
elif self.player<>None:
self.mon.log(self,"sent terminate to player")
self.player.terminate(reason)
else:
self._end(reason,'terminated without terminating shower or player')
def _tidy_up(self):
pass
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
self.terminate("error",'Cannot find resource')
else:
return value
# ***************************
# Respond to key/button presses
# ***************************
def _stop(self,message):
self._end_liveshow_signal=True
def _play_child(self):
self._play_child_signal=True
if self.player<>None:
self.player.key_pressed("escape")
# ***************************
# end of show functions
# ***************************
def _end(self,reason,message):
self._end_liveshow_signal=False
self.mon.log(self,"Ending Liveshow: "+ self.show['show-ref'])
self._tidy_up()
self._end_callback(reason,message)
self=None
return
def _nend(self):
self._end('normal','end from state machine')
# ***************************
# Livelist
# ***************************
def _livelist_add_track(self,afile):
(root,title)=os.path.split(afile)
(root,ext)= os.path.splitext(afile)
if ext.lower() in LiveShow.IMAGE_FILES:
self._livelist_new_track(LiveShow.NEW_TRACKS['image'],{'title':title,'track-ref':'','location':afile})
if ext.lower() in LiveShow.VIDEO_FILES:
self._livelist_new_track(LiveShow.NEW_TRACKS['video'],{'title':title,'track-ref':'','location':afile})
if ext.lower() in LiveShow.AUDIO_FILES:
self._livelist_new_track(LiveShow.NEW_TRACKS['video'],{'title':title,'track-ref':'','location':afile})
def _livelist_new_track(self,fields,values):
new_track=fields
self._new_livelist.append(copy.deepcopy(new_track))
last = len(self._new_livelist)-1
self._new_livelist[last].update(values)
def _new_livelist_create(self):
self._new_livelist=[]
if os.path.exists(self._pp_live_dir1):
for file in os.listdir(self._pp_live_dir1):
file = self._pp_live_dir1 + os.sep + file
(root_file,ext_file)= os.path.splitext(file)
if ext_file.lower() in LiveShow.IMAGE_FILES+LiveShow.VIDEO_FILES+LiveShow.AUDIO_FILES:
self._livelist_add_track(file)
if os.path.exists(self._pp_live_dir2):
for file in os.listdir(self._pp_live_dir2):
file = self._pp_live_dir2 + os.sep + file
(root_file,ext_file)= os.path.splitext(file)
if ext_file.lower() in LiveShow.IMAGE_FILES+LiveShow.VIDEO_FILES+LiveShow.AUDIO_FILES:
self._livelist_add_track(file)
self._new_livelist= sorted(self._new_livelist, key= lambda track: os.path.basename(track['location']).lower())
# for it in self._new_livelist:
# print it['location']
# print ''
def _livelist_replace_if_changed(self):
self._new_livelist_create()
if self._new_livelist<>self._livelist:
self._livelist=copy.deepcopy(self._new_livelist)
self._livelist_index=0
def _livelist_next(self):
if self._livelist_index== len(self._livelist)-1:
self._livelist_index=0
else:
self._livelist_index +=1
# ***************************
# Play Loop
# ***************************
def _play_first_track(self):
self._new_livelist_create()
self._livelist = copy.deepcopy(self._new_livelist)
self._livelist_index = 0
self._play_track()
def _play_track(self):
self._livelist_replace_if_changed()
if len(self._livelist)>0:
self._play_selected_track(self._livelist[self._livelist_index])
else:
self.display_message(self.canvas,None,self.resource('liveshow','m01'),5,self._what_next)
def _what_next(self):
# user wants to end
if self._end_liveshow_signal==True:
self._end_liveshow_signal=False
self._end('normal',"show ended by user")
# play child?
elif self._play_child_signal == True:
self._play_child_signal=False
index = self.medialist.index_of_track('pp-child-show')
if index >=0:
#don't select the track as need to preserve mediashow sequence.
child_track=self.medialist.track(index)
self._display_eggtimer(self.resource('liveshow','m02'))
self._play_selected_track(child_track)
else:
self.mon.err(self,"Child show not found in medialist: "+ self.show['pp-child-show'])
self._end('error',"child show not found in medialist")
# otherwise loop to next track
else:
self._livelist_next()
self._play_track()
# ***************************
# Dispatching to Players/Shows
# ***************************
# used to display internal messages in situations where a medialist entry could not be used.
def display_message(self,canvas,source,content,duration,_display_message_callback):
self._display_message_callback=_display_message_callback
tp={'duration':duration,'message-colour':'white','message-font':'Helvetica 20 bold'}
self.player=MessagePlayer(canvas,tp,tp)
self.player.play(content,self._display_message_end,None)
def _display_message_end(self,reason,message):
self.player=None
if reason in ("killed",'error'):
self._end(reason,message)
else:
self._display_message_callback()
def complete_path(self,selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Track to play is: "+ track_file)
return track_file
def _play_selected_track(self,selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected_track is a dictionary for the track/show
"""
# self.canvas.delete(ALL)
# is menu required
if self.show['has-child']=="yes":
enable_child=True
else:
enable_child=False
#dispatch track by type
self.player=None
self.shower=None
track_type = selected_track['type']
self.mon.log(self,"Track type is: "+ track_type)
if track_type=="image":
track_file=self.complete_path(selected_track)
# images played from menus don't have children
self.player=ImagePlayer(self.canvas,self.show,selected_track)
self.player.play(track_file,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type=="video":
# create a videoplayer
track_file=self.complete_path(selected_track)
self.player=VideoPlayer(self.canvas,self.show,selected_track)
self.player.play(track_file,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type=="show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >=0:
self.showlist.select(index)
selected_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ selected_track['sub-show'])
self._stop("Unknown show")
if selected_show['type']=="mediashow":
self.shower= MediaShow(selected_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower,top=False,command='nil')
elif selected_show['type']=="menu":
self.shower= MenuShow(selected_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower,top=False,command='nil')
else:
self.mon.err(self,"Unknown Show Type: "+ selected_show['type'])
self._stop("Unknown show type")
else:
self.mon.err(self,"Unknown Track Type: "+ track_type)
self._stop("Unknown track type")
def ready_callback(self):
self._delete_eggtimer()
def end_player(self,reason,message):
self.mon.log(self,"Returned from player with message: "+ message)
self.player=None
if reason in("killed","error"):
self._end(reason,message)
else:
self._what_next()
def end_shower(self,reason,message):
self.mon.log(self,"Returned from shower with message: "+ message)
self.shower=None
if reason in("killed","error"):
self._end(reason,message)
else:
self._what_next()
def _display_eggtimer(self,text):
self.canvas.create_text(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
text= text,
fill='white',
font="Helvetica 20 bold")
self.canvas.update_idletasks( )
def _delete_eggtimer(self):
self.canvas.delete(ALL)
class MessagePlayer:
""" Displays lines of text in the centre of a black screen"""
# *******************
# external commands
# *******************
def __init__(self, canvas, cd, track_params):
"""
canvas - the canvas onto which the image is to be drawn
cd - configuration dictionary for the show from which player was called
"""
self.mon = Monitor()
self.mon.on()
self.canvas = canvas
self.cd = cd
self.track_params = track_params
# get config from medialist if there.
if 'duration' in self.track_params and self.track_params[
'duration'] <> "":
self.duration = int(self.track_params['duration'])
else:
self.duration = int(self.cd['duration'])
# keep dwell and porch as an integer multiple of tick
self.tick = 100 # tick time for image display (milliseconds)
self.dwell = (1000 * self.duration)
self.centre_x = int(self.canvas['width']) / 2
self.centre_y = int(self.canvas['height']) / 2
def play(self,
text,
end_callback,
ready_callback,
enable_menu=False,
starting_callback=None,
playing_callback=None,
ending_callback=None):
# instantiate arguments
self.text = text
self.enable_menu = enable_menu
self.ready_callback = ready_callback
self.end_callback = end_callback
#init state and signals
self.quit_signal = False
self.kill_required_signal = False
self.error = False
self._tick_timer = None
self.drawn = None
# and start text display
self._start_dwell()
def key_pressed(self, key_name):
self.mon.log(self, "key received: " + key_name)
if key_name == '':
return
elif key_name in ('p'):
return
elif key_name == 'escape':
self._stop()
return
def button_pressed(self, button, edge):
self.mon.log(self, "button received: " + button)
if button == 'pause':
return
elif button == 'stop':
self._stop()
return
def terminate(self, reason):
if reason == 'error':
self.error = True
else:
self.kill_required_signal = True
self.quit_signal = True
# *******************
# internal functions
# *******************
def _stop(self):
self.quit_signal = True
def _error(self):
self.error = True
self.quit_signal = True
#called when dwell has completed or quit signal is received
def _end(self, reason, message):
if self._tick_timer <> None:
self.canvas.after_cancel(self._tick_timer)
self._tick_timer = None
self.quit_signal = False
#self.canvas.delete(ALL)
self.canvas.update_idletasks()
if self.error == True:
self.end_callback("error", message)
self = None
elif self.kill_required_signal == True:
self.end_callback("killed", message)
self = None
else:
self.end_callback('normal', message)
self = None
def _start_dwell(self):
self.dwell_counter = 0
if self.ready_callback <> None:
self.ready_callback()
# display text
self.canvas.create_text(self.centre_x,
self.centre_y,
text=self.text.rstrip('\n'),
fill=self.track_params['message-colour'],
font=self.track_params['message-font'])
# display instructions (hint)
if self.enable_menu == True:
self.canvas.create_text(int(self.canvas['width']) / 2,
int(self.canvas['height']) -
int(self.cd['hint-y']),
text=self.cd['hint-text'],
fill=self.cd['hint-colour'],
font=self.cd['hint-font'])
self.canvas.update_idletasks()
self._tick_timer = self.canvas.after(self.tick, self._do_dwell)
def _do_dwell(self):
if self.quit_signal == True:
self.mon.log(self, "quit received")
self._end('normal', 'user quit')
else:
if self.dwell <> 0:
self.dwell_counter = self.dwell_counter + 1
if self.dwell_counter == self.dwell / self.tick:
self._end('normal', 'finished')
else:
self._tick_timer = self.canvas.after(
self.tick, self._do_dwell)
else:
self._tick_timer = self.canvas.after(self.tick, self._do_dwell)
class VideoPlayer:
""" plays a track using omxplayer
See pp_imageplayer for common software design description
"""
_CLOSED = "omx_closed" #probably will not exist
_STARTING = "omx_starting" #track is being prepared
_PLAYING = "omx_playing" #track is playing to the screen, may be paused
_ENDING = "omx_ending" #track is in the process of ending due to quit or end of track
# ***************************************
# EXTERNAL COMMANDS
# ***************************************
def __init__(self,
show_id,
root,
canvas,
show_params,
track_params ,
pp_dir,
pp_home,
pp_profile):
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show_id=show_id
self.root=root
self.canvas = canvas
self.show_params=show_params
self.track_params=track_params
self.pp_dir=pp_dir
self.pp_home=pp_home
self.pp_profile=pp_profile
# get config from medialist if there.
if self.track_params['omx-audio']<>"":
self.omx_audio= self.track_params['omx-audio']
else:
self.omx_audio= self.show_params['omx-audio']
if self.omx_audio<>"": self.omx_audio= "-o "+ self.omx_audio
if self.track_params['omx-volume']<>"":
self.omx_volume= self.track_params['omx-volume']
else:
self.omx_volume= self.show_params['omx-volume']
if self.omx_volume<>"":
self.omx_volume= "--vol "+ str(int(self.omx_volume)*100) + ' '
if self.track_params['omx-window']<>'':
self.omx_window= self.track_params['omx-window']
else:
self.omx_window= self.show_params['omx-window']
# get background image from profile.
self.background_file=''
if self.track_params['background-image']<>"":
self.background_file= self.track_params['background-image']
else:
if self.track_params['display-show-background']=='yes':
self.background_file= self.show_params['background-image']
# get background colour from profile.
if self.track_params['background-colour']<>"":
self.background_colour= self.track_params['background-colour']
else:
self.background_colour= self.show_params['background-colour']
self.centre_x = int(self.canvas['width'])/2
self.centre_y = int(self.canvas['height'])/2
#get animation instructions from profile
self.animate_begin_text=self.track_params['animate-begin']
self.animate_end_text=self.track_params['animate-end']
# open the plugin Manager
self.pim=PluginManager(self.show_id,self.root,self.canvas,self.show_params,self.track_params,self.pp_dir,self.pp_home,self.pp_profile)
#create an instance of PPIO so we can create gpio events
self.ppio = PPIO()
# could put instance generation in play, not sure which is better.
self.omx=OMXDriver(self.canvas)
self.tick_timer=None
self.init_play_state_machine()
def play(self, track,
showlist,
end_callback,
ready_callback,
enable_menu=False):
#instantiate arguments
self.track=track
self.showlist=showlist
self.ready_callback=ready_callback #callback when ready to play
self.end_callback=end_callback # callback when finished
self.enable_menu = enable_menu
# callback to the calling object to e.g remove egg timer and enable click areas.
if self.ready_callback<>None:
self.ready_callback()
# create an instance of showmanager so we can control concurrent shows
self.show_manager=ShowManager(self.show_id,self.showlist,self.show_params,self.root,self.canvas,self.pp_dir,self.pp_profile,self.pp_home)
#set up video window
reason,message,comand,has_window,x1,y1,x2,y2= self.parse_window(self.omx_window)
if reason =='error':
self.mon.err(self,'omx window error: ' + message + ' in ' + self.omx_window)
self.end_callback(reason,message)
else:
if has_window==True:
self.omx_window= '--win " '+ str(x1) + ' ' + str(y1) + ' ' + str(x2) + ' ' + str(y2) + ' " '
else:
self.omx_window=''
# Control other shows at beginning
reason,message=self.show_manager.show_control(self.track_params['show-control-begin'])
if reason in ('error','killed'):
self.end_callback(reason,message)
self=None
else:
#display content
reason,message=self.display_content()
if reason == 'error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# create animation events
reason,message=self.ppio.animate(self.animate_begin_text,id(self))
if reason=='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# start playing the video.
if self.play_state == VideoPlayer._CLOSED:
self.mon.log(self,">play track received")
self.start_play_state_machine(self.track)
else:
self.mon.err(self,'play track rejected')
self.end_callback('error','play track rejected')
self=None
def terminate(self,reason):
# circumvents state machine and does not wait for omxplayer to close
if self.omx<>None:
self.mon.log(self,"sent terminate to omxdriver")
self.omx.terminate(reason)
self.end('killed',' end without waiting for omxplayer to finish') # end without waiting
else:
self.mon.log(self,"terminate, omxdriver not running")
self.end('killed','terminate, mplayerdriver not running')
def input_pressed(self,symbol):
if symbol[0:4]=='omx-':
self.control(symbol[4])
elif symbol =='pause':
self.pause()
elif symbol=='stop':
self.stop()
else:
pass
def get_links(self):
return self.track_params['links']
# ***************************************
# INTERNAL FUNCTIONS
# ***************************************
# respond to normal stop
def stop(self):
# send signal to stop the track to the state machine
self.mon.log(self,">stop received")
self.quit_signal=True
#toggle pause
def pause(self):
if self.play_state in (VideoPlayer._PLAYING,VideoPlayer._ENDING):
self.omx.pause()
return True
#NIK
# for pausing video after first frame
elif self.play_state == VideoPlayer._STARTING:
self.omx.delayed_pause = True
return True
#NIK
else:
self.mon.log(self,"!<pause rejected")
return False
# other control when playing
def control(self,char):
if self.play_state==VideoPlayer._PLAYING and char not in ('q'):
self.mon.log(self,"> send control to omx: "+ char)
self.omx.control(char)
return True
else:
self.mon.log(self,"!<control rejected")
return False
# ***********************
# sequencing
# **********************
"""self. play_state controls the playing sequence, it has the following values.
I am not entirely sure the starting and ending states are required.
- _closed - the omx process is not running, omx process can be initiated
- _starting - omx process is running but is not yet able to receive controls
- _playing - playing a track, controls can be sent
- _ending - omx is doing its termination, controls cannot be sent
"""
def init_play_state_machine(self):
self.quit_signal=False
self.play_state=VideoPlayer._CLOSED
def start_play_state_machine(self,track):
#initialise all the state machine variables
#self.iteration = 0 # for debugging
self.quit_signal=False # signal that user has pressed stop
self.play_state=VideoPlayer._STARTING
#play the selected track
options=self.omx_audio+ " " + self.omx_volume + ' ' + self.omx_window + ' ' + self.show_params['omx-other-options']+" "
# NIK ADDITION
# adding subtitles file for video
if 'omx-subtitles' in self.track_params and self.track_params['omx-subtitles'] <> '':
subtitles_full_path = self.complete_path(self.track_params['omx-subtitles'])
if os.path.exists (subtitles_full_path):
options += '--font-size 40 --subtitles "' + subtitles_full_path + '" '
if 'omx-subtitles-numlines' in self.track_params and self.track_params['omx-subtitles-numlines'] <> '':
options += '--lines ' + self.track_params['omx-subtitles-numlines'] + ' '
# END NIK ADDITION
self.omx.play(track,options)
self.mon.log (self,'Playing track from show Id: '+ str(self.show_id))
# and start polling for state changes
self.tick_timer=self.canvas.after(50, self.play_state_machine)
def play_state_machine(self):
if self.play_state == VideoPlayer._CLOSED:
self.mon.log(self," State machine: " + self.play_state)
return
elif self.play_state == VideoPlayer._STARTING:
self.mon.log(self," State machine: " + self.play_state)
# if omxplayer is playing the track change to play state
if self.omx.start_play_signal==True:
self.mon.log(self," <start play signal received from omx")
self.omx.start_play_signal=False
self.play_state=VideoPlayer._PLAYING
self.mon.log(self," State machine: omx_playing started")
self.tick_timer=self.canvas.after(50, self.play_state_machine)
elif self.play_state == VideoPlayer._PLAYING:
# self.mon.log(self," State machine: " + self.play_state)
# service any queued stop signals
if self.quit_signal==True:
self.mon.log(self," Service stop required signal")
self.stop_omx()
self.quit_signal=False
# self.play_state = VideoPlayer._ENDING
# omxplayer reports it is terminating so change to ending state
if self.omx.end_play_signal:
self.mon.log(self," <end play signal received")
self.mon.log(self," <end detected at: " + str(self.omx.video_position))
if self.omx.end_play_reason<>'nice_day':
# deal with omxplayer not sending 'have a nice day'
self.mon.warn(self," <end detected at: " + str(self.omx.video_position))
self.mon.warn(self," <pexpect reports: "+self.omx.end_play_reason)
self.mon.warn(self,'pexpect.before is'+self.omx.xbefore)
self.play_state = VideoPlayer._ENDING
self.ending_count=0
self.tick_timer=self.canvas.after(200, self.play_state_machine)
elif self.play_state == VideoPlayer._ENDING:
self.mon.log(self," State machine: " + self.play_state)
# if spawned process has closed can change to closed state
self.mon.log (self," State machine : is omx process running? - " + str(self.omx.is_running()))
if self.omx.is_running() ==False:
self.mon.log(self," <omx process is dead")
self.play_state = VideoPlayer._CLOSED
self.end('normal','quit by user or system')
else:
self.ending_count+=1
if self.ending_count>10:
# deal with omxplayer not terminating at the end of a track
self.mon.warn(self," <omxplayer failed to close at: " + str(self.omx.video_position))
self.mon.warn(self,'pexpect.before is'+self.omx.xbefore)
self.omx.kill()
self.mon.warn(self,'omxplayer now terminated ')
self.play_state = VideoPlayer._CLOSED
self.end('normal','end from omxplayer failed to terminate')
else:
self.tick_timer=self.canvas.after(200, self.play_state_machine)
def stop_omx(self):
# send signal to stop the track to the state machine
self.mon.log(self," >stop omx received from state machine")
if self.play_state==VideoPlayer._PLAYING:
self.omx.stop()
return True
else:
self.mon.log(self,"!<stop rejected")
return False
# *****************
# ending the player
# *****************
def end(self,reason,message):
# stop the plugin
if self.track_params['plugin']<>'':
self.pim.stop_plugin()
# os.system("xrefresh -display :0")
# abort the timer
if self.tick_timer<>None:
self.canvas.after_cancel(self.tick_timer)
self.tick_timer=None
if reason in ('error','killed'):
self.end_callback(reason,message)
self=None
else:
# normal end so do show control and animation
# Control concurrent shows at end
reason,message=self.show_manager.show_control(self.track_params['show-control-end'])
if reason =='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# clear events list for this track
if self.track_params['animate-clear']=='yes':
self.ppio.clear_events_list(id(self))
# create animation events for ending
reason,message=self.ppio.animate(self.animate_end_text,id(self))
if reason=='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
self.end_callback('normal',"track has terminated or quit")
self=None
# *****************
# displaying things
# *****************
def display_content(self):
#background colour
if self.background_colour<>'':
self.canvas.config(bg=self.background_colour)
# delete previous content
self.canvas.delete('pp-content')
# background image
if self.background_file<>'':
self.background_img_file = self.complete_path(self.background_file)
if not os.path.exists(self.background_img_file):
self.mon.err(self,"Video background file not found: "+ self.background_img_file)
self.end('error',"Video background file not found")
else:
pil_background_img=PIL.Image.open(self.background_img_file)
self.background = PIL.ImageTk.PhotoImage(pil_background_img)
self.drawn = self.canvas.create_image(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
image=self.background,
anchor=CENTER,
tag='pp-content')
# execute the plugin if required
if self.track_params['plugin']<>'':
reason,message,self.track = self.pim.do_plugin(self.track,self.track_params['plugin'],)
if reason <> 'normal':
return reason,message
# display show text if enabled
if self.show_params['show-text']<> '' and self.track_params['display-show-text']=='yes':
self.canvas.create_text(int(self.show_params['show-text-x']),int(self.show_params['show-text-y']),
anchor=NW,
text=self.show_params['show-text'],
fill=self.show_params['show-text-colour'],
font=self.show_params['show-text-font'],
tag='pp-content')
# display track text if enabled
if self.track_params['track-text']<> '':
self.canvas.create_text(int(self.track_params['track-text-x']),int(self.track_params['track-text-y']),
anchor=NW,
text=self.track_params['track-text'],
fill=self.track_params['track-text-colour'],
font=self.track_params['track-text-font'],
tag='pp-content')
# display instructions if enabled
if self.enable_menu== True:
self.canvas.create_text(int(self.show_params['hint-x']),
int(self.show_params['hint-y']),
text=self.show_params['hint-text'],
fill=self.show_params['hint-colour'],
font=self.show_params['hint-font'],
anchor=NW,
tag='pp-content')
self.canvas.tag_raise('pp-click-area')
self.canvas.update_idletasks( )
return 'normal',''
# ****************
# utilities
# *****************
def complete_path(self,track_file):
# complete path of the filename of the selected entry
if track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Background image is "+ track_file)
return track_file
# original _
# warp _ or xy2
def parse_window(self,line):
fields = line.split()
# check there is a command field
if len(fields) < 1:
return 'error','no type field','',False,0,0,0,0
# deal with original which has 1
if fields[0]=='original':
if len(fields) <> 1:
return 'error','number of fields for original','',False,0,0,0,0
return 'normal','',fields[0],False,0,0,0,0
#deal with warp which has 1 or 5 arguments
# check basic syntax
if fields[0] <>'warp':
return 'error','not a valid type','',False,0,0,0,0
if len(fields) not in (1,5):
return 'error','wrong number of coordinates for warp','',False,0,0,0,0
# deal with window coordinates
if len(fields) == 5:
#window is specified
if not (fields[1].isdigit() and fields[2].isdigit() and fields[3].isdigit() and fields[4].isdigit()):
return 'error','coordinates are not positive integers','',False,0,0,0,0
has_window=True
return 'normal','',fields[0],has_window,int(fields[1]),int(fields[2]),int(fields[3]),int(fields[4])
else:
# fullscreen
has_window=True
return 'normal','',fields[0],has_window,0,0,self.canvas['width'],self.canvas['height']
class MediaList:
"""
manages a media list of tracks and the track selected from the medialist
"""
def __init__(self):
self.clear()
self.mon=Monitor()
self.mon.on()
# Functions for the editor dealing with complete list
def clear(self):
self._tracks = [] #MediaList, stored as a list of dicts
self._num_tracks=0
self._selected_track_index=-1 # index of currently selected track
def print_list(self):
print '\n'
print self._tracks
def first(self):
self.select(0)
def length(self):
return self._num_tracks
def append(self, track_dict):
print '\ntrack dict',track_dict
"""appends a track dictionary to the end of the medialist store"""
self._tracks.append(copy.deepcopy(track_dict))
self._num_tracks+=1
def update(self,index,values):
self._tracks[index].update(values)
def remove(self,index):
self._tracks.pop(index)
self._num_tracks-=1
# deselect any track, saves worrying about whether index needs changing
self._selected_track_index=-1
def move_up(self):
if self._selected_track_index<>0:
self._tracks.insert(self._selected_track_index-1, self._tracks.pop(self._selected_track_index))
self.select(self._selected_track_index-1)
def move_down(self):
if self._selected_track_index<>self._num_tracks-1:
self._tracks.insert(self._selected_track_index+1, self._tracks.pop(self._selected_track_index))
self.select(self._selected_track_index+1)
def replace(self,index,replacement):
self._tracks[index]= replacement
# Common functions work for anything
def track_is_selected(self):
if self._selected_track_index>=0:
return True
else:
return False
def selected_track_index(self):
return self._selected_track_index
def track(self,index):
return self._tracks[index]
def selected_track(self):
"""returns a dictionary containing all fields in the selected track """
return self._selected_track
def select(self,index):
"""does housekeeping necessary when a track is selected"""
if self._num_tracks>0 and index>=0 and index< self._num_tracks:
self._selected_track_index=index
self._selected_track = self._tracks[index]
return True
else:
return False
# Dealing with anonymous tracks for use and display
def at_end(self):
# true is selected track is last anon
index=self._num_tracks-1
while index>=0:
if self._tracks[index] ['track-ref'] =="":
end=index
if self._selected_track_index==end:
return True
else:
return False
index -=1
return False
def index_of_end(self):
index=self._num_tracks-1
while index >= 0:
if self._tracks[index] ['track-ref'] =="":
return index
index -=1
return -1
def at_start(self):
index=0
while index<self._num_tracks:
if self._tracks[index] ['track-ref'] =="":
start = index
if self._selected_track_index==start:
return True
else:
return False
index +=1
return False
def index_of_start(self):
index=0
while index<self._num_tracks:
if self._tracks[index] ['track-ref'] =="":
return index
index +=1
return False
def display_length(self):
count=0
index=0
while index<self._num_tracks:
if self._tracks[index] ['track-ref'] =="":
count+=1
index +=1
return count
def start(self):
# select first anymous track in the list
index=0
while index<self._num_tracks:
if self._tracks[index] ['track-ref'] =="":
self.select(index)
return True
index +=1
return False
def finish(self):
# select first anymous track in the list
index=self._num_tracks-1
while index>=0:
if self._tracks[index] ['track-ref'] =="":
self.select(index)
return True
index -=1
return False
def next(self,sequence):
if sequence=='ordered':
if self._selected_track_index== self._num_tracks-1:
index=0
else:
index= self._selected_track_index+1
end=self._selected_track_index
else:
index=random.randint(0,self._num_tracks-1)
if index==0:
end=self._num_tracks-1
else:
end=index-1
#search for next anonymous track
# print 'index', index, 'end',end
while index<>end:
if self._tracks[index] ['track-ref'] =="":
self.select(index)
return True
if index== self._num_tracks-1:
index=0
else:
index= index+1
return False
def previous(self,sequence):
if sequence=='ordered':
if self._selected_track_index == 0:
index=self._num_tracks-1
else:
index= self._selected_track_index-1
end = self._selected_track_index
else:
index=random.randint(0,self._num_tracks-1)
if index==self._num_tracks-1:
end=0
else:
end=index+1
# print 'index', index, 'end',end
#search for previous anonymous track
while index<>end :
if self._tracks[index] ['track-ref'] =="":
self.select(index)
return True
if index == 0:
index=self._num_tracks-1
else:
index= index-1
return False
# Lookup for labelled tracks
def index_of_track(self,wanted_track):
index = 0
for track in self._tracks:
if track['track-ref']==wanted_track:
return index
index +=1
return -1
# open and save
def open_list(self,filename,showlist_issue):
"""
opens a saved medialist
medialists are stored as json arrays.
"""
ifile = open(filename, 'rb')
mdict = json.load(ifile)
ifile.close()
self._tracks = mdict['tracks']
if 'issue' in mdict:
self.issue= mdict['issue']
else:
self.issue="1.0"
if self.issue==showlist_issue:
self._num_tracks=len(self._tracks)
self._selected_track_index=-1
return True
else:
return False
def issue(self):
return self.issue
def save_list(self,filename):
""" save a medialist """
if filename=="":
return False
dic={'issue':self.issue,'tracks':self._tracks}
filename=str(filename)
filename = string.replace(filename,'\\','/')
tries = 1
while tries<=10:
# print "save medialist ",filename
try:
ofile = open(filename, "wb")
json.dump(dic,ofile,sort_keys=True,indent=1)
ofile.close()
self.mon.log(self,"Saved medialist "+ filename)
break
except IOError:
self.mon.err(self,"failed to save medialist, trying again " + str(tries))
tries+=1
return
# for the future
def open_csv(self,filename):
"""
opens a saved csv medialist
"""
if filename !="" and os.path.exists(filename):
ifile = open(filename, 'rb')
pl=csv.reader(ifile)
for pl_row in pl:
if len(pl_row) != 0:
entry=dict([('type',pl_row[2]),('location',pl_row[0]),('title',pl_row[1])])
self.append(copy.deepcopy(entry))
ifile.close()
return True
else:
return False
class OMXDriver(object):
_STATUS_REXP = re.compile(r"V :\s*([\d.]+).*")
_DONE_REXP = re.compile(r"have a nice day.*")
_LAUNCH_CMD = '/usr/bin/omxplayer -s ' #needs changing if user has installed his own version of omxplayer elsewhere
def __init__(self):
self.mon = Monitor()
self.mon.on()
self.paused = None
def control(self, char):
self._process.send(char)
def pause(self):
self._process.send('p')
if not self.paused:
self.paused = True
else:
self.paused = False
def play(self, track, options):
self._pp(track, options, False)
def prepare(self, track, options):
self._pp(track, options, True)
def show(self):
# unpause to start playing
self._process.send('p')
self.paused = False
def stop(self):
self._process.send('q')
# kill the subprocess (omxplayer.bin). Used for tidy up on exit.
def terminate(self, reason):
self.terminate_reason = reason
self._process.send('q')
def terminate_reason(self):
return self.terminate_reason
#try:
#self._process
#except AttributeError:
#return
#else:
#self._process.send('q')
#terminated=self._process.terminate(force=True)
#if terminated==True:
#self.mon.log(self,"killed omxplayer sub-process")
#else:
#self.mon.err(self,"FAILED to kill omxplayer sub-process")
# test of whether _process is running
def is_running(self):
return self._process.isalive()
# ***********************************
# INTERNAL FUNCTIONS
# ************************************
def _pp(self, track, options, pause_before_play):
self.paused = False
self.start_play_signal = False
self.end_play_signal = False
self.terminate_reason = ''
track = "'" + track.replace("'", "'\\''") + "'"
cmd = OMXDriver._LAUNCH_CMD + options + " " + track
self.mon.log(self, "Send command to omxplayer: " + cmd)
self._process = pexpect.spawn(cmd)
# uncomment to monitor output to and input from omxplayer.bin (read pexpect manual)
fout = file(
'omxlogfile.txt',
'w') #uncomment and change sys.stdout to fout to log to a file
#self._process.logfile_send = sys.stdout # send just commands to stdout
self._process.logfile = fout # send all communications to log file
if pause_before_play:
self._process.send('p')
self.paused = True
#start the thread that is going to monitor sys.stdout. Presumably needs a thread because of blocking
self._position_thread = Thread(target=self._get_position)
self._position_thread.start()
def _get_position(self):
self.start_play_signal = True
self.video_position = 0.0
self.audio_position = 0.0
while True:
index = self._process.expect([
OMXDriver._STATUS_REXP, pexpect.TIMEOUT, pexpect.EOF,
OMXDriver._DONE_REXP
])
if index == 1:
continue # timeout - it doesn't block so is a thread needed?
elif index in (2, 3):
#Have a nice day detected
self.end_play_signal = True
break
else:
# presumably matches _STATUS_REXP so get video position
# has a bug, position is not displayed for an audio track (mp3). Need to look at another field in the status, but how to extract it
self.video_position = float(self._process.match.group(1))
self.audio_position = 0.0
sleep(0.05)
class LiveShow:
""" plays a set of tracks the content of which is dynamically specified by plaacing track files
in one of two directories. Tracks are played in file leafname alphabetical order.
Can be interrupted
"""
# *******************
# External interface
# ********************
def __init__(self, show_params, root, canvas, showlist, pp_dir, pp_home,
pp_profile):
self.mon = Monitor()
self.mon.on()
#instantiate arguments
self.show_params = show_params
self.showlist = showlist
self.root = root
self.canvas = canvas
self.pp_dir = pp_dir
self.pp_home = pp_home
self.pp_profile = pp_profile
# open resources
self.rr = ResourceReader()
#create and instance of TimeOfDay scheduler so we can add events
self.tod = TimeOfDay()
# Init variables
self.player = None
self.shower = None
self.end_liveshow_signal = False
self.end_trigger_signal = False
self.play_child_signal = False
self.error = False
self.egg_timer = None
self.duration_timer = None
self.state = 'closed'
self.livelist = None
self.new_livelist = None
def play(self,
show_id,
end_callback,
ready_callback,
top=False,
command='nil'):
#instantiate the arguments
self.show_id = show_id
self.end_callback = end_callback
self.ready_callback = ready_callback
self.top = top
self.mon.log(self, "Starting show: " + self.show_params['show-ref'])
# check data files are available.
self.media_file = self.pp_profile + os.sep + self.show_params[
'medialist']
if not os.path.exists(self.media_file):
self.mon.err(self, "Medialist file not found: " + self.media_file)
self.end_liveshow_signal = True
self.options = command_options()
self.pp_live_dir1 = self.pp_home + os.sep + 'pp_live_tracks'
if not os.path.exists(self.pp_live_dir1):
os.mkdir(self.pp_live_dir1)
self.pp_live_dir2 = ''
if self.options['liveshow'] <> "":
self.pp_live_dir2 = self.options['liveshow']
if not os.path.exists(self.pp_live_dir2):
self.mon.err(
self,
"live tracks directory not found " + self.pp_live_dir2)
self.end('error', "live tracks directory not found")
#create a medialist for the liveshow and read it.
# it should be empty of anonymous tracks but read it to check its version.
self.medialist = MediaList()
if self.medialist.open_list(self.media_file,
self.showlist.sissue()) == False:
self.mon.err(self, "Version of medialist different to Pi Presents")
self.end('error', "Version of medialist different to Pi Presents")
#get control bindings for this show if top level
controlsmanager = ControlsManager()
if self.top == True:
self.controls_list = controlsmanager.default_controls()
# and merge in controls from profile
self.controls_list = controlsmanager.merge_show_controls(
self.controls_list, self.show_params['controls'])
#set up the time of day triggers for the show
if self.show_params['trigger-start'] in ('time', 'time-quiet'):
error_text = self.tod.add_times(
self.show_params['trigger-start-time'], id(self),
self.tod_start_callback, self.show_params['trigger-start'])
if error_text <> '':
self.mon.err(self, error_text)
self.end('error', error_text)
if self.show_params['trigger-end'] == 'time':
error_text = self.tod.add_times(
self.show_params['trigger-end-time'], id(self),
self.tod_end_callback, 'n/a')
if error_text <> '':
self.mon.err(self, error_text)
self.end('error', error_text)
if self.show_params['trigger-end'] == 'duration':
error_text = self.calculate_duration(
self.show_params['trigger-end-time'])
if error_text <> '':
self.mon.err(self, error_text)
self.end('error', error_text)
self.wait_for_trigger()
def managed_stop(self):
# if next lower show eor player is running pass down to stop the show/track
if self.shower <> None:
self.shower.managed_stop()
else:
self.end_liveshow_signal = True
if self.player <> None:
self.player.input_pressed('stop')
# kill or error
def terminate(self, reason):
if self.shower <> None:
self.shower.terminate(reason)
elif self.player <> None:
self.player.terminate(reason)
else:
self.end(reason, 'terminated without terminating shower or player')
# respond to key presses.
def input_pressed(self, symbol, edge, source):
self.mon.log(self, "received key: " + symbol)
if self.show_params['disable-controls'] == 'yes':
return
# if at top convert symbolic name to operation otherwise lower down we have received an operation
# look through list of standard symbols to find match (symbolic-name, function name) operation =lookup (symbol
if self.top == True:
operation = self.lookup_control(symbol, self.controls_list)
else:
operation = symbol
# print 'operation',operation
# if no match for symbol against standard operations then return
if operation == '':
return
else:
#service the standard inputs for this show
if operation == 'stop':
# if next lower show eor player is running pass down to stop the show/track
# ELSE stop this show except for exceptions
if self.shower <> None:
self.shower.input_pressed('stop', edge, source)
elif self.player <> None:
self.player.input_pressed('stop')
else:
# not at top so stop the show
if self.top == False:
self.end_liveshow_signal = True
else:
pass
elif operation in ('up', 'down'):
# if child or sub-show is running and is a show pass to show, track does not use up/down
if self.shower <> None:
self.shower.input_pressed(operation, edge, source)
elif operation == 'play':
# if child show or sub-show is running and is show - pass down
# ELSE use Return to start child
if self.shower <> None:
self.shower.input_pressed(operation, edge, source)
else:
if self.show_params['has-child'] == "yes":
self.play_child_signal = True
if self.player <> None:
self.player.input_pressed("stop")
elif operation == 'pause':
# pass down if show or track running.
if self.shower <> None:
self.shower.input_pressed(operation, edge, source)
elif self.player <> None:
self.player.input_pressed(operation)
elif operation[0:4] == 'omx-' or operation[0:6] == 'mplay-':
if self.player <> None:
self.player.input_pressed(operation)
def lookup_control(self, symbol, controls_list):
for control in controls_list:
if symbol == control[0]:
return control[1]
return ''
# ***************************
# Constructing Livelist
# ***************************
def livelist_add_track(self, afile):
(root, title) = os.path.split(afile)
(root_plus, ext) = os.path.splitext(afile)
if ext.lower() in PPdefinitions.IMAGE_FILES:
self.livelist_new_track(PPdefinitions.new_tracks['image'], {
'title': title,
'track-ref': '',
'location': afile
})
if ext.lower() in PPdefinitions.VIDEO_FILES:
self.livelist_new_track(PPdefinitions.new_tracks['video'], {
'title': title,
'track-ref': '',
'location': afile
})
if ext.lower() in PPdefinitions.AUDIO_FILES:
self.livelist_new_track(PPdefinitions.new_tracks['audio'], {
'title': title,
'track-ref': '',
'location': afile
})
if ext.lower() in PPdefinitions.WEB_FILES:
self.livelist_new_track(PPdefinitions.new_tracks['web'], {
'title': title,
'track-ref': '',
'location': afile
})
if ext.lower() == '.cfg':
self.livelist_new_plugin(afile, title)
def livelist_new_plugin(self, plugin_cfg, title):
# read the file which is a plugin cfg file into a dictionary
self.plugin_config = ConfigParser.ConfigParser()
self.plugin_config.read(plugin_cfg)
self.plugin_params = dict(self.plugin_config.items('plugin'))
# create a new livelist entry of a type specified in the config file with plugin
self.livelist_new_track(
PPdefinitions.new_tracks[self.plugin_params['type']], {
'title': title,
'track-ref': '',
'plugin': plugin_cfg,
'location': plugin_cfg
})
def livelist_new_track(self, fields, values):
new_track = fields
self.new_livelist.append(copy.deepcopy(new_track))
last = len(self.new_livelist) - 1
self.new_livelist[last].update(values)
def new_livelist_create(self):
self.new_livelist = []
if os.path.exists(self.pp_live_dir1):
for file in os.listdir(self.pp_live_dir1):
file = self.pp_live_dir1 + os.sep + file
(root_file, ext_file) = os.path.splitext(file)
if (ext_file.lower() in PPdefinitions.IMAGE_FILES +
PPdefinitions.VIDEO_FILES + PPdefinitions.AUDIO_FILES +
PPdefinitions.WEB_FILES) or (ext_file.lower()
== '.cfg'):
self.livelist_add_track(file)
if os.path.exists(self.pp_live_dir2):
for file in os.listdir(self.pp_live_dir2):
file = self.pp_live_dir2 + os.sep + file
(root_file, ext_file) = os.path.splitext(file)
if ext_file.lower(
) in PPdefinitions.IMAGE_FILES + PPdefinitions.VIDEO_FILES + PPdefinitions.AUDIO_FILES + PPdefinitions.WEB_FILES or (
ext_file.lower() == '.cfg'):
self.livelist_add_track(file)
self.new_livelist = sorted(
self.new_livelist,
key=lambda track: os.path.basename(track['location']).lower())
# print 'LIVELIST'
# for it in self.new_livelist:
# print 'type: ', it['type'], 'loc: ',it['location'],'\nplugin cfg: ', it['plugin']
# print ''
def livelist_replace_if_changed(self):
self.new_livelist_create()
if self.new_livelist <> self.livelist:
self.livelist = copy.deepcopy(self.new_livelist)
self.livelist_index = 0
def livelist_next(self):
if self.livelist_index == len(self.livelist) - 1:
self.livelist_index = 0
else:
self.livelist_index += 1
# ***************************
# Sequencing
# ***************************
def wait_for_trigger(self):
self.state = 'waiting'
if self.ready_callback <> None:
self.ready_callback()
self.mon.log(
self, "Waiting for trigger: " + self.show_params['trigger-start'])
if self.show_params['trigger-start'] in ('time', 'time-quiet'):
# if next show is this one display text
next_show = self.tod.next_event_time()
if next_show[3] <> True:
if next_show[1] == 'tomorrow':
text = self.resource('liveshow', 'm04')
else:
text = self.resource('liveshow', 'm03')
text = text.replace('%tt', next_show[0])
self.display_message(self.canvas, 'text', text, 0,
self.play_first_track)
elif self.show_params['trigger-start'] == "start":
self.play_first_track()
else:
self.mon.err(
self, "Unknown trigger: " + self.show_params['trigger-start'])
self.end('error', "Unknown trigger type")
# callbacks from time of day scheduler
def tod_start_callback(self):
if self.state == 'waiting' and self.show_params['trigger-start'] in (
'time', 'time-quiet'):
self.play_first_track()
def tod_end_callback(self):
if self.state == 'playing' and self.show_params['trigger-end'] in (
'time', 'duration'):
self.end_trigger_signal = True
if self.shower <> None:
self.shower.input_pressed('stop', 'front', '')
elif self.player <> None:
self.player.input_pressed('stop')
def play_first_track(self):
self.state = 'playing'
# start duration timer
if self.show_params['trigger-end'] == 'duration':
# print 'set alarm ', self.duration
self.duration_timer = self.canvas.after(self.duration * 1000,
self.tod_end_callback)
self.new_livelist_create()
self.livelist = copy.deepcopy(self.new_livelist)
self.livelist_index = 0
self.play_track()
def play_track(self):
self.livelist_replace_if_changed()
if len(self.livelist) > 0:
self.play_selected_track(self.livelist[self.livelist_index])
else:
self.display_message(self.canvas, None,
self.resource('liveshow', 'm01'), 5,
self.what_next)
def what_next(self):
# end of show time trigger
if self.end_trigger_signal == True:
self.end_trigger_signal = False
if self.top == True:
self.state = 'waiting'
self.wait_for_trigger()
else:
# not at top so stop the show
self.end('normal', 'sub-show end time trigger')
# user wants to end
elif self.end_liveshow_signal == True:
self.end_liveshow_signal = False
self.end('normal', "show ended by user")
# play child?
elif self.play_child_signal == True:
self.play_child_signal = False
index = self.medialist.index_of_track('pp-child-show')
if index >= 0:
#don't select the track as need to preserve mediashow sequence.
child_track = self.medialist.track(index)
self.display_eggtimer(self.resource('liveshow', 'm02'))
self.play_selected_track(child_track)
else:
self.mon.err(
self, "Child show not found in medialist: " +
self.show_params['pp-child-show'])
self.end('error', "child show not found in medialist")
# otherwise loop to next track
else:
self.livelist_next()
self.play_track()
# ***************************
# Dispatching to Players/Shows
# ***************************
def ready_callback(self):
self.delete_eggtimer()
def play_selected_track(self, selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected_track is a dictionary for the track/show
"""
self.canvas.delete('pp-content')
# is menu required
if self.show_params['has-child'] == "yes":
enable_child = True
else:
enable_child = False
#dispatch track by type
self.player = None
self.shower = None
track_type = selected_track['type']
self.mon.log(self, "Track type is: " + track_type)
if track_type == "image":
track_file = self.complete_path(selected_track)
# images played from menus don't have children
self.player = ImagePlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "video":
# create a videoplayer
track_file = self.complete_path(selected_track)
self.player = VideoPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "audio":
# create a audioplayer
track_file = self.complete_path(selected_track)
self.player = AudioPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "message":
# bit odd because MessagePlayer is used internally to display text.
text = selected_track['text']
self.player = MessagePlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(text,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "web":
# create a browser
track_file = self.complete_path(selected_track)
self.player = BrowserPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >= 0:
self.showlist.select(index)
selected_show = self.showlist.selected_show()
else:
self.mon.err(
self, "Show not found in showlist: " +
selected_track['sub-show'])
self.end_liveshow_signal = True
if selected_show['type'] == "mediashow":
self.shower = MediaShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "menu":
self.shower = MenuShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "radiobuttonshow":
self.shower = RadioButtonShow(selected_show, self.root,
self.canvas, self.showlist,
self.pp_dir, self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "hyperlinkshow":
self.shower = HyperlinkShow(selected_show, sef.root,
self.canvas, self.showlist,
self.pp_dir, self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
else:
self.mon.err(self,
"Unknown Show Type: " + selected_show['type'])
self.end_liveshow_signal = True
else:
self.mon.err(self, "Unknown Track Type: " + track_type)
self.end_liveshow_signal = True
def end_shower(self, show_id, reason, message):
self.mon.log(self, "Returned from shower with message: " + message)
self.shower = None
if reason in ("killed", "error"):
self.end(reason, message)
else:
self.what_next()
def end_player(self, reason, message):
self.mon.log(self, "Returned from player with message: " + message)
self.player = None
if reason in ("killed", "error"):
self.end(reason, message)
else:
self.what_next()
# ***************************
# end of show
# ***************************
def end(self, reason, message):
self.end_liveshow_signal = False
self.mon.log(self, "Ending Liveshow: " + self.show_params['show-ref'])
self.tidy_up()
self.end_callback(self.show_id, reason, message)
self = None
def tidy_up(self):
if self.duration_timer <> None:
self.canvas.after_cancel(self.duration_timer)
self.duration_timer = None
#clear outstanding time of day events for this show
# self.tod.clear_times_list(id(self))
# ******************************
# Displaying things
# *********************************
def display_eggtimer(self, text):
self.egg_timer = self.canvas.create_text(int(self.canvas['width']) / 2,
int(self.canvas['height']) /
2,
text=text,
fill='white',
font="Helvetica 20 bold",
tag='pp-eggtimer')
self.canvas.update_idletasks()
def delete_eggtimer(self):
self.canvas.delete('pp-eggtimer')
self.canvas.update_idletasks()
# used to display internal messages in situations where a medialist entry could not be used.
def display_message(self, canvas, source, content, duration,
display_message_callback):
self.display_message_callback = display_message_callback
tp = {
'duration': duration,
'message-colour': 'white',
'message-font': 'Helvetica 20 bold',
'message-justify': 'left',
'background-colour': '',
'background-image': '',
'show-control-begin': '',
'show-control-end': '',
'animate-begin': '',
'animate-clear': '',
'animate-end': '',
'message-x': '',
'message-y': '',
'display-show-background': 'no',
'display-show-text': 'no',
'show-text': '',
'track-text': '',
'plugin': ''
}
self.player = MessagePlayer(self.show_id, self.root, canvas, tp, tp,
self.pp_dir, self.pp_home, self.pp_profile)
self.player.play(content, self.showlist, self.display_message_end,
None)
def display_message_end(self, reason, message):
self.player = None
if reason in ("killed", 'error'):
self.end(reason, message)
else:
self.display_message_callback()
# ******************************
# utilities
# *********************************
def resource(self, section, item):
value = self.rr.get(section, item)
if value == False:
self.mon.err(self,
"resource: " + section + ': ' + item + " not found")
self.terminate("error", 'Cannot find resource')
else:
return value
def complete_path(self, selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file <> '' and track_file[0] == "+":
track_file = self.pp_home + track_file[1:]
self.mon.log(self, "Track to play is: " + track_file)
return track_file
def calculate_duration(self, line):
fields = line.split(':')
if len(fields) == 1:
secs = fields[0]
minutes = '0'
hours = '0'
if len(fields) == 2:
secs = fields[1]
minutes = fields[0]
hours = '0'
if len(fields) == 3:
secs = fields[2]
minutes = fields[1]
hours = fields[0]
self.duration = 3600 * long(hours) + 60 * long(minutes) + long(secs)
return ''
class MediaList:
"""
manages a media list of tracks and the track selected from the medialist
"""
def __init__(self):
self.clear()
self.mon = Monitor()
self.mon.on()
# Functions for the editor dealing with complete list
def clear(self):
self._tracks = [] #MediaList, stored as a list of dicts
self._num_tracks = 0
self._selected_track_index = -1 # index of currently selected track
def print_list(self):
print self._tracks
def first(self):
self.select(0)
def length(self):
return self._num_tracks
def append(self, track_dict):
"""appends a track dictionary to the end of the medialist store"""
self._tracks.append(copy.deepcopy(track_dict))
self._num_tracks += 1
def update(self, index, values):
self._tracks[index].update(values)
def remove(self, index):
self._tracks.pop(index)
self._num_tracks -= 1
# deselect any track, saves worrying about whether index needs changing
self._selected_track_index = -1
def move_up(self):
if self._selected_track_index <> 0:
self._tracks.insert(self._selected_track_index - 1,
self._tracks.pop(self._selected_track_index))
self.select(self._selected_track_index - 1)
def move_down(self):
if self._selected_track_index <> self._num_tracks - 1:
self._tracks.insert(self._selected_track_index + 1,
self._tracks.pop(self._selected_track_index))
self.select(self._selected_track_index + 1)
def replace(self, index, replacement):
self._tracks[index] = replacement
# Common functions work for anything
def track_is_selected(self):
if self._selected_track_index >= 0:
return True
else:
return False
def selected_track_index(self):
return self._selected_track_index
def track(self, index):
return self._tracks[index]
def selected_track(self):
"""returns a dictionary containing all fields in the selected track """
return self._selected_track
def select(self, index):
"""does housekeeping necessary when a track is selected"""
if self._num_tracks > 0 and index >= 0 and index < self._num_tracks:
self._selected_track_index = index
self._selected_track = self._tracks[index]
return True
else:
return False
# Dealing with anonymous tracks for use and display
def at_end(self):
# true is selected track is last anon
index = self._num_tracks - 1
while index >= 0:
if self._tracks[index]['track-ref'] == "":
end = index
if self._selected_track_index == end:
return True
else:
return False
index -= 1
return False
def index_of_end(self):
index = self._num_tracks - 1
while index >= 0:
if self._tracks[index]['track-ref'] == "":
return index
index -= 1
return -1
def at_start(self):
index = 0
while index < self._num_tracks:
if self._tracks[index]['track-ref'] == "":
start = index
if self._selected_track_index == start:
return True
else:
return False
index += 1
return False
def index_of_start(self):
index = 0
while index < self._num_tracks:
if self._tracks[index]['track-ref'] == "":
return index
index += 1
return False
def display_length(self):
count = 0
index = 0
while index < self._num_tracks:
if self._tracks[index]['track-ref'] == "":
count += 1
index += 1
return count
def start(self):
# select first anymous track in the list
index = 0
while index < self._num_tracks:
if self._tracks[index]['track-ref'] == "":
self.select(index)
return True
index += 1
return False
def finish(self):
# select first anymous track in the list
index = self._num_tracks - 1
while index >= 0:
if self._tracks[index]['track-ref'] == "":
self.select(index)
return True
index -= 1
return False
def next(self):
if self._selected_track_index == self._num_tracks - 1:
index = 0
else:
index = self._selected_track_index + 1
end = self._selected_track_index
while index <> end:
if self._tracks[index]['track-ref'] == "":
self.select(index)
return True
if index == self._num_tracks - 1:
index = 0
else:
index = index + 1
return False
def previous(self):
if self._selected_track_index == 0:
index = self._num_tracks - 1
else:
index = self._selected_track_index - 1
end = self._selected_track_index
while index <> end:
if self._tracks[index]['track-ref'] == "":
self.select(index)
return True
if index == 0:
index = self._num_tracks - 1
else:
index = index - 1
return False
# Lookup for labelled tracks
def index_of_track(self, wanted_track):
index = 0
for track in self._tracks:
if track['track-ref'] == wanted_track:
return index
index += 1
return -1
# open and save
def open_list(self, filename, showlist_issue):
"""
opens a saved medialist
medialists are stored as json arrays.
"""
ifile = open(filename, 'rb')
mdict = json.load(ifile)
ifile.close()
self._tracks = mdict['tracks']
if 'issue' in mdict:
self.issue = mdict['issue']
else:
self.issue = "1.0"
if self.issue == showlist_issue:
self._num_tracks = len(self._tracks)
self._selected_track_index = -1
return True
else:
return False
def issue(self):
return self.issue
def save_list(self, filename):
""" save a medialist """
if filename == "":
return False
dic = {'issue': self.issue, 'tracks': self._tracks}
filename = str(filename)
filename = string.replace(filename, '\\', '/')
tries = 1
while tries <= 10:
# print "save medialist ",filename
try:
ofile = open(filename, "wb")
json.dump(dic, ofile, sort_keys=True, indent=1)
ofile.close()
self.mon.log(self, "Saved medialist " + filename)
break
except IOError:
self.mon.err(
self,
"failed to save medialist, trying again " + str(tries))
tries += 1
return
# for the future
def open_csv(self, filename):
"""
opens a saved csv medialist
"""
if filename != "" and os.path.exists(filename):
ifile = open(filename, 'rb')
pl = csv.reader(ifile)
for pl_row in pl:
if len(pl_row) != 0:
entry = dict([('type', pl_row[2]), ('location', pl_row[0]),
('title', pl_row[1])])
self.append(copy.deepcopy(entry))
ifile.close()
return True
else:
return False
class HyperlinkShow:
"""
Aimed at touchscreens but can be used for any purpose where the user is required to follow hyperlinks between tracks
Profiles for media tracks (message, image, video, audio ) specify links to other tracks
in a link a symbolic name of an input is associated with a track-reference
The show begins at first-track and then uses events (GPIO, keypresses etc.) to link to other tracks via their symbolic names
If using 'call' keeps a record of the tracks it has visited so the 'return' command can go back.
Executes timeout-track if no user input is received.
links are of the form:
symbolic-name command [track-ref]
link commands:
call <track-ref> play track-ref and add it to the path
return - return 1 back up the path removing the track from the path, stops at home-track.
return n - return n tracks back up the path removing the track from the path, stops at home-track.
return <track-ref> return to <track-ref> removing tracks from the path
home - return to home-track removing tracks from the path
jump <track-ref-> - play trck-ref forgetting the path back to home-track
goto <track-ref> - play track-ref, forget the path
exit - end the hyperlink show
null - inhibits the link defined in the show with the same symbolic name.
reserved symbolic names
pp-onend command - pseudo symbolic name for end of a track
interface:
* play - selects the first track to play (first-track)
* input_pressed, - receives user events passes them to a Shower/Player if a track is playing,
otherwise actions them depending on the symbolic name supplied
"""
# *********************
# external interface
# ********************
def __init__(self, show_params, root, canvas, showlist, pp_dir, pp_home,
pp_profile):
""" canvas - the canvas that the tracks of the event show are to be written on
show_params - the name of the configuration dictionary section for the hyperlinkshow
showlist - the showlist, to enable runningnof show type tracks.
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon = Monitor()
self.mon.on()
#instantiate arguments
self.show_params = show_params
self.root = root
self.showlist = showlist
self.canvas = canvas
self.pp_dir = pp_dir
self.pp_home = pp_home
self.pp_profile = pp_profile
# open resources
self.rr = ResourceReader()
#create a path stack
self.path = PathManager()
# init variables
self.drawn = None
self.player = None
self.shower = None
self.timeout_running = None
self.error = False
def play(self,
show_id,
end_callback,
ready_callback,
top=False,
command='nil'):
""" starts the hyperlink show at start-track
end_callback - function to be called when the show exits
ready_callback - callback when event-show is ready to display its forst track (not used?)
top is True when the show is top level (run from [start] or from show control)
command is not used
"""
#instantiate arguments
self.show_id = show_id
self.end_callback = end_callback
self.ready_callback = ready_callback
self.top = top
self.command = command
# check data files are available.
self.medialist_file = self.pp_profile + "/" + self.show_params[
'medialist']
if not os.path.exists(self.medialist_file):
self.mon.err(self,
"Medialist file not found: " + self.medialist_file)
self.end('error', "Medialist file not found")
#create a medialist object for the hyperlinkshow and read the file into it.
self.medialist = MediaList()
if self.medialist.open_list(self.medialist_file,
self.showlist.sissue()) == False:
self.mon.err(self, "Version of medialist different to Pi Presents")
self.end('error', "Version of medialist different to Pi Presents")
#get controls for this show if top level
controlsmanager = ControlsManager()
if self.top == True:
self.controls_list = controlsmanager.default_controls()
# and merge in controls from profile
self.controls_list = controlsmanager.merge_show_controls(
self.controls_list, self.show_params['controls'])
# read show links and destinations
self.first_track_ref = self.show_params['first-track-ref']
self.home_track_ref = self.show_params['home-track-ref']
self.timeout_track_ref = self.show_params['timeout-track-ref']
# state variables and signals
self.end_hyperlinkshow_signal = False
self.egg_timer = None
self.next_track_signal = False
self.next_track_ref = ''
self.current_track_ref = ''
self.current_track_type = ''
# ready callback for show
if self.ready_callback <> None:
self.ready_callback()
self.canvas.delete('pp-content')
self.canvas.config(bg='black')
self.do_first_track()
#stop received from another concurrent show via ShowManager
def managed_stop(self):
# set signal to stop the hyperlinkshow when all sub-shows and players have ended
self.end_hyperlinkshow_signal = True
# then stop and shows or tracks.
if self.shower <> None:
self.shower.managed_stop()
elif self.player <> None:
self.player.input_pressed('stop')
else:
self.end('normal', 'stopped by ShowManager')
# kill or error
def terminate(self, reason):
self.end_hyperlinkshow_signal = True
if self.shower <> None:
self.shower.terminate(reason)
elif self.player <> None:
self.player.terminate(reason)
else:
self.end(reason, 'terminated without terminating shower or player')
# respond to inputs
def input_pressed(self, symbol, edge, source):
self.mon.log(self, "received symbol: " + symbol)
#does the symbol match a link, if so execute it
if self.is_link(symbol, edge, source) == True:
return
# controls are disabled so ignore anything else
if self.show_params['disable-controls'] == 'yes':
return
# does it match a control
# if at top convert symbolic name to operation otherwise lower down we have received an operatio
# look through list of controls to find match
if self.top == True:
operation = self.lookup_control(symbol, self.controls_list)
else:
operation = symbol
# print 'operation',operation
if operation <> '':
self.do_operation(operation, edge, source)
def do_operation(self, operation, edge, source):
if self.shower <> None:
# if next lower show is running pass down to stop the show and lower level
self.shower.input_pressed(operation, edge, source)
else:
# control this show and its tracks
if operation == 'stop':
if self.player <> None:
if self.current_track_ref == self.first_track_ref and self.top == False:
self.end_radiobuttonshow_signal = True
self.player.input_pressed('stop')
elif operation == 'pause':
if self.player <> None:
self.player.input_pressed(operation)
elif operation[0:4] == 'omx-' or operation[
0:6] == 'mplay-' or operation[0:5] == 'uzbl-':
if self.player <> None:
self.player.input_pressed(operation)
def is_link(self, symbol, edge, source):
# find the first entry in links that matches the symbol and execute its operation
# print 'hyperlinkshow ',symbol
found = False
for link in self.links:
#print link
if symbol == link[0]:
found = True
if link[1] <> 'null':
# print 'match',link[0]
link_operation = link[1]
if link_operation == 'home':
self.do_home(edge, source)
elif link_operation == 'return':
self.do_return(link[2], edge, source)
elif link_operation == 'call':
self.do_call(link[2], edge, source)
elif link_operation == 'goto':
self.do_goto(link[2], edge, source)
elif link_operation == 'jump':
self.do_jump(link[2], edge, source)
elif link_operation == 'exit':
self.end('normal', 'executed exit command')
return found
def lookup_control(self, symbol, controls_list):
for control in controls_list:
if symbol == control[0]:
return control[1]
return ''
# *********************
# INTERNAL FUNCTIONS
# ********************
# *********************
# Show Sequencer
# *********************
def timeout_callback(self):
self.do_call(self.timeout_track_ref, 'front', 'timeout')
def do_call(self, track_ref, edge, source):
if track_ref <> self.current_track_ref:
self.mon.log(self, 'call: ' + track_ref)
self.next_track_signal = True
self.next_track_op = 'call'
self.next_track_arg = track_ref
if self.shower <> None:
self.shower.input_pressed('stop', edge, source)
elif self.player <> None:
self.player.input_pressed('stop')
else:
self.what_next()
def do_goto(self, to, edge, source):
if to <> self.current_track_ref:
self.mon.log(self, 'goto: ' + to)
self.next_track_signal = True
self.next_track_op = 'goto'
self.next_track_arg = to
if self.shower <> None:
self.shower.input_pressed('stop', edge, source)
elif self.player <> None:
self.player.input_pressed('stop')
else:
self.what_next()
def do_jump(self, to, edge, source):
if to <> self.current_track_ref:
self.mon.log(self, 'jump to: ' + to)
self.next_track_signal = True
self.next_track_op = 'jump'
self.next_track_arg = to
if self.shower <> None:
self.shower.input_pressed('stop', edge, source)
elif self.player <> None:
self.player.input_pressed('stop')
else:
self.what_next()
def do_return(self, to, edge, source):
self.next_track_signal = True
if to.isdigit() or to == '':
self.mon.log(self, 'hyperlink command - return by: ' + to)
self.next_track_op = 'return-by'
if to == '':
self.next_track_arg = '1'
else:
self.next_track_arg = to
else:
self.mon.log(self, 'hyperlink command - return to: ' + to)
self.next_track_op = 'return-to'
self.next_track_arg = to
if self.shower <> None:
self.shower.input_pressed('stop', edge, source)
elif self.player <> None:
self.player.input_pressed('stop')
else:
self.what_next()
def do_home(self, edge, source):
if self.current_track_ref <> self.home_track_ref:
self.mon.log(self, 'hyperlink command - home')
self.next_track_signal = True
self.next_track_op = 'home'
if self.shower <> None:
self.shower.input_pressed('stop', edge, source)
elif self.player <> None:
self.player.input_pressed('stop')
else:
self.what_next()
def do_first_track(self):
index = self.medialist.index_of_track(self.first_track_ref)
if index >= 0:
#don't use select the track as not using selected_track in hyperlinkshow
first_track = self.medialist.track(index)
self.current_track_ref = first_track['track-ref']
self.path.append(first_track['track-ref'])
self.play_selected_track(first_track)
else:
self.mon.err(
self, "first-track not found in medialist: " +
self.show_params['first-track-ref'])
self.end('error', "first track not found in medialist")
def what_next(self):
# user wants to end the show
if self.end_hyperlinkshow_signal == True:
self.end_hyperlinkshow_signal = False
self.end('normal', "show ended by user")
# user has selected another track
elif self.next_track_signal == True:
self.next_track_signal = False
# home
if self.next_track_op in ('home'):
# back to 1 before home
back_ref = self.path.back_to(self.home_track_ref)
if back_ref == '':
self.mon.err(
self, "home - home track not in path: " +
self.home_track_ref)
self.end('error', "home - home track not in path")
# play home
self.next_track_ref = self.home_track_ref
self.path.append(self.next_track_ref)
# return-by
elif self.next_track_op in ('return-by'):
if self.current_track_ref <> self.home_track_ref:
# back n stopping at home
# back one more and return it
back_ref = self.path.back_by(self.home_track_ref,
self.next_track_arg)
# use returned track
self.next_track_ref = back_ref
self.path.append(self.next_track_ref)
# return-to
elif self.next_track_op in ('return-to'):
#back to one before return-to track
back_ref = self.path.back_to(self.next_track_arg)
if back_ref == '':
self.mon.err(
self, "return-to - track not in path: " +
self.next_track_arg)
self.end('error', "return-to - track not in path")
# and append the return to track
self.next_track_ref = self.next_track_arg
self.path.append(self.next_track_ref)
# call
elif self.next_track_op in ('call'):
# append the required track
self.path.append(self.next_track_arg)
self.next_track_ref = self.next_track_arg
# goto
elif self.next_track_op in ('goto'):
self.path.pop_for_sibling()
## #back to first track and remove it
## back_ref=self.path.back_to(self.first_track_ref)
## if back_ref=='':
## self.mon.err(self,"goto - first track not in path: "+self.first_track_ref)
## self.end('error',"goto - first track not in path")
#add the goto track
self.next_track_ref = self.next_track_arg
self.path.append(self.next_track_arg)
# jump
elif self.next_track_op in ('jump'):
# back to home and remove it
back_ref = self.path.back_to(self.home_track_ref)
if back_ref == '':
self.mon.err(
self, "jump - home track not in path: " +
self.home_track_ref)
self.end('error', "jump - track not in path")
# add back the home track without playing it
self.path.append(self.home_track_ref)
# append the jumped to track
self.next_track_ref = self.next_track_arg
self.path.append(self.next_track_ref)
else:
self.mon.err(
self, "unaddressed what next: " + self.next_track_op +
' ' + self.next_track_arg)
self.end('error', "unaddressed what next")
self.current_track_ref = self.next_track_ref
index = self.medialist.index_of_track(self.next_track_ref)
if index >= 0:
#don't use select the track as not using selected_track in hyperlinkshow
next_track = self.medialist.track(index)
self.play_selected_track(next_track)
else:
self.mon.err(
self, "next-track not found in medialist: " +
self.next_track_ref)
self.end('error', "next track not found in medialist")
else:
#track ends naturally
#then input pp-onend symbolic name
self.input_pressed('pp-onend', 'front', 'key')
# *********************
# Dispatching to Players
# *********************
def page_callback(self):
# called from a Player when ready to play, merge the links from the track with those from the show
# and then enable the click areas
self.delete_eggtimer()
links_text = self.player.get_links()
reason, message, track_links = self.path.parse_links(links_text)
if reason == 'error':
self.mon.err(self, message + " in page")
self.end('error', message)
self.path.merge_links(self.links, track_links)
# enable the click-area that are in the list of links
self.enable_click_areas()
def enable_click_areas(self):
for link in self.links:
#print 'trying link ',link[0]
if not ('key-'
in link[0]) and link[1] <> 'null' and link[0] <> 'pp-auto':
# print 'enabling link ',link[0]
self.canvas.itemconfig(link[0], state='normal')
def play_selected_track(self, selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
if self.timeout_running <> None:
self.canvas.after_cancel(self.timeout_running)
self.timeout_running = None
# self.canvas.delete(ALL)
self.display_eggtimer(self.resource('hyperlinkshow', 'm01'))
self.current_track_type = selected_track['type']
#read the show links. Track links will be added by ready_callback
links_text = self.show_params['links']
reason, message, self.links = self.path.parse_links(links_text)
if reason == 'error':
self.mon.err(self, message + " in show")
self.end('error', message)
#start timeout for the track if required
if self.current_track_ref <> self.first_track_ref and int(
self.show_params['timeout']) <> 0:
self.timeout_running = self.canvas.after(
int(self.show_params['timeout']) * 1000, self.timeout_callback)
# dispatch track by type
self.player = None
self.shower = None
track_type = selected_track['type']
self.mon.log(self, "Track type is: " + track_type)
if track_type == "video":
# create a videoplayer
track_file = self.complete_path(selected_track)
self.player = VideoPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type == "audio":
# create a audioplayer
track_file = self.complete_path(selected_track)
self.player = AudioPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type == "image":
track_file = self.complete_path(selected_track)
self.player = ImagePlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(
track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False,
)
elif track_type == "web":
# create a browser
track_file = self.complete_path(selected_track)
self.player = BrowserPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type == "message":
# bit odd because MessagePlayer is used internally to display text.
text = selected_track['text']
self.player = MessagePlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(text,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type == "show":
self.enable_click_areas()
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >= 0:
self.showlist.select(index)
selected_show = self.showlist.selected_show()
else:
self.mon.err(
self, "Show not found in showlist: " +
selected_track['sub-show'])
self.end("Unknown show")
if selected_show['type'] == "mediashow":
self.shower = MediaShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "liveshow":
self.shower = LiveShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "radiobuttonshow":
self.shower = RadioButtonShow(selected_show, self.root,
self.canvas, self.showlist,
self.pp_dir, self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "hyperlinkshow":
self.shower = HyperlinkShow(selected_show, self.root,
self.canvas, self.showlist, self,
pp_dir, self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "menu":
self.shower = MenuShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
else:
self.mon.err(self,
"Unknown Show Type: " + selected_show['type'])
self.end("Unknown show type")
else:
self.mon.err(self, "Unknown Track Type: " + track_type)
self.end("Unknown track type")
# callback from when player ends
def end_player(self, reason, message):
self.mon.log(self, "Returned from player with message: " + message)
self.player = None
# this does not seem to change the colour of the polygon
self.canvas.itemconfig('pp-click-area', state='hidden')
self.canvas.update_idletasks()
if reason in ("killed", "error"):
self.end(reason, message)
else:
self.display_eggtimer(self.resource('hyperlinkshow', 'm02'))
self.what_next()
# callback from when shower ends
def end_shower(self, show_id, reason, message):
self.mon.log(self, "Returned from shower with message: " + message)
self.shower = None
self.canvas.itemconfig('pp-click-area', state='hidden')
self.canvas.update_idletasks()
if reason in ("killed", "error"):
self.end(reason, message)
else:
self.display_eggtimer(self.resource('hyperlinkshow', 'm03'))
self.what_next()
# *********************
# End the show
# *********************
# finish the player for killing, error or normally
# this may be called directly sub/child shows or players are not running
# if they might be running then need to call terminate.
def end(self, reason, message):
self.mon.log(self,
"Ending hyperlinkshow: " + self.show_params['show-ref'])
self.end_callback(self.show_id, reason, message)
self = None
return
# *********************
# displaying things
# *********************
def display_eggtimer(self, text):
#self.egg_timer=self.canvas.create_text(int(self.canvas['width'])/2,
#int(self.canvas['height'])/2,
#text= text,
# fill='white',
# font="Helvetica 20 bold")
#self.canvas.update_idletasks( )
pass
def delete_eggtimer(self):
if self.egg_timer != None:
self.canvas.delete(self.egg_timer)
# *********************
# utilities
# *********************
def complete_path(self, selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file <> '' and track_file[0] == "+":
track_file = self.pp_home + track_file[1:]
self.mon.log(self, "Track to play is: " + track_file)
return track_file
def resource(self, section, item):
value = self.rr.get(section, item)
if value == False:
self.mon.err(self,
"resource: " + section + ': ' + item + " not found")
# players or showers may be running so need terminate
self.terminate("error")
else:
return value
class ShowList:
"""
manages a list of show and the show selected from the showlist
"""
IMAGE_FILES = ("Image files", ".gif", ".GIF", ".jpg", ".JPG", ".jpeg", ".JPEG")
VIDEO_FILES = ("video files", ".mp4", ".MP4", ".mkv", ".MKV", ".avi", ".AVI")
AUDIO_FILES = ("audio files", ".mp3", ".MP3")
def __init__(self):
self.mon = Monitor()
self.mon.on()
self.clear()
def clear(self):
self._shows = [] # MediaList, stored as a list of dicts
self._num_shows = 0
self._selected_show_index = -1 # index of currently selected show
def print_list(self):
print self._shows
def length(self):
return self._num_shows
def at_end(self):
if self._selected_show_index == self._num_shows - 1:
return True
else:
return False
def at_start(self):
if self._selected_show_index == 0:
return True
else:
return False
def show_is_selected(self):
if self._selected_show_index >= 0:
return True
else:
return False
def selected_show_index(self):
return self._selected_show_index
def shows(self):
return self._shows
def show(self, index):
return self._shows[index]
def selected_show(self):
"""returns a dictionary containing all fields in the selected show """
return self._selected_show
def append(self, show_dict):
"""appends a show dictionary to the end of the showlist store"""
self._shows.append(copy.deepcopy(show_dict))
self._num_shows += 1
def remove(self, index):
self._shows.pop(index)
self._num_shows -= 1
# deselect any show, saves worrying about whether index needs changing
self._selected_show_index = -1
def replace(self, index, replacement):
self._shows[index] = replacement
def first(self):
self.select(0)
def next(self):
if self.length() > 0:
if self._selected_show_index == self.length() - 1:
index = 0
else:
index = self._selected_show_index + 1
self.select(index)
def previous(self):
if self.length() > 0:
if self._selected_show_index == 0:
index = self.length() - 1
else:
index = self._selected_show_index - 1
self.select(index)
def index_of_show(self, wanted_show):
index = 0
for show in self._shows:
if show["show-ref"] == wanted_show:
return index
index += 1
return -1
def select(self, index):
"""
user clicks on a show in the Shows list so try and select it.
"""
# needs forgiving int for possible tkinter upgrade
self._selected_show_index = index
self._selected_show = self._shows[index]
def open_json(self, filename):
"""
opens a saved showlistlist
showlists are stored in files as json arrays within a object 'shows'.
shows are stored internally as a list of dictionaries in self._shows
"""
if filename != "" and os.path.exists(filename):
ifile = open(filename, "rb")
sdict = json.load(ifile)
ifile.close()
self._shows = sdict["shows"]
if "issue" in sdict:
self.issue = sdict["issue"]
else:
self.issue = "1.0"
self._num_shows = len(self._shows)
self._selected_show_index = -1
return True
else:
return False
def sissue(self):
return self.issue
def save_list(self, filename):
""" save a showlist """
if filename == "":
return False
if os.name == "nt":
filename = string.replace(filename, "/", "\\")
else:
filename = string.replace(filename, "\\", "/")
print "save showlist ", filename
dic = {"issue": self.issue, "shows": self._shows}
ofile = open(filename, "wb")
json.dump(dic, ofile, sort_keys=True, indent=1)
ofile.close()
return
# =====================================================
# old stuff
def open_cfg(self, filename):
"""
opens a saved showlist
each show is a section of a confiParser file
shows are stored as a list of dictionaries in self._shows
"""
if filename != "" and os.path.exists(filename):
self.config = ConfigParser.ConfigParser()
self.config.read(filename)
self._shows = []
for section in self.sections():
self._shows.append(self.dictionary_of(section))
self._num_shows = len(self._shows)
self._selected_show_index = -1
return True
else:
return False
def has_show(self, section):
return self.config.has_section(section)
def sections(self):
return self.config.sections()
def get(self, section, item):
return self.config.get(section, item, 0)
def dictionary_of(self, section):
return dict(self.config.items(section))
class RadioButtonShow:
"""
starts at 'first-track' which can be any type of track or a show
The show has links of the form symbolic-name play track-ref
key, gpio or click area will play the referenced track
at the end of that track control will return to first-track
links in the tracks are ignored. Links are inherited from the show.
timeout returns to first-track
interface:
* play - selects the first track to play (first-track)
* input_pressed, - receives user events passes them to a Shower/Player if a track is playing,
otherwise actions them depending on the symbolic name supplied
"""
# *********************
# external interface
# ********************
def __init__(self,
show_params,
root,
canvas,
showlist,
pp_dir,
pp_home,
pp_profile):
""" canvas - the canvas that the tracks of the event show are to be written on
show_params - the name of the configuration dictionary section for the radiobuttonshow
showlist - the showlist, to enable runningnof show type tracks.
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show_params=show_params
self.showlist=showlist
self.root=root
self.canvas=canvas
self.pp_dir=pp_dir
self.pp_home=pp_home
self.pp_profile=pp_profile
# open resources
self.rr=ResourceReader()
#create a path stack - only used to parse the links.
self.path = PathManager()
# init variables
self.drawn = None
self.player=None
self.shower=None
self.timeout_running=None
self.error=False
def play(self,show_id,end_callback,ready_callback,top=False,command='nil'):
""" starts the hyperlink show at start-track
end_callback - function to be called when the show exits
ready_callback - callback when event-show is ready to display its forst track (not used?)
top is True when the show is top level (run from [start] or from show control)
command is not used
"""
#instantiate arguments
self.show_id=show_id
self.end_callback=end_callback
self.ready_callback=ready_callback
self.top=top
self.command=command
# check data files are available.
self.medialist_file = self.pp_profile + "/" + self.show_params['medialist']
if not os.path.exists(self.medialist_file):
self.mon.err(self,"Medialist file not found: "+ self.medialist_file)
self.end('error',"Medialist file not found")
#create a medialist object for the radiobuttonshow and read the file into it.
self.medialist=MediaList()
if self.medialist.open_list(self.medialist_file,self.showlist.sissue()) == False:
self.mon.err(self,"Version of medialist different to Pi Presents")
self.end('error',"Version of medialist different to Pi Presents")
# read show destinations
self.first_track_ref=self.show_params['first-track-ref']
#get control bindings for this show if top level
controlsmanager=ControlsManager()
if self.top==True:
self.controls_list=controlsmanager.default_controls()
# and merge in controls from profile
self.controls_list=controlsmanager.merge_show_controls(self.controls_list,self.show_params['controls'])
#read the show links. Track links will be added by ready_callback
links_text=self.show_params['links']
reason,message,self.links=self.path.parse_links(links_text)
if reason=='error':
self.mon.err(self,message + " in show")
self.end('error',message)
# state variables and signals
self.end_radiobuttonshow_signal= False
self.egg_timer=None
self.next_track_signal=False
self.next_track_ref=''
self.current_track_ref=''
self.current_track_type=''
# ready callback for show
if self.ready_callback<>None:
self.ready_callback()
self.canvas.delete('pp-content')
self.canvas.config(bg='black')
self.do_first_track()
#stop received from another concurrent show via ShowManager
def managed_stop(self):
# set signal to stop the radiobuttonshow when all sub-shows and players have ended
self.end_radiobuttonshow_signal=True
# then stop and shows or tracks.
if self.shower<>None:
self.shower.managed_stop()
elif self.player<>None:
self.player.input_pressed('stop')
else:
self.end('normal','stopped by ShowManager')
# kill or error
def terminate(self,reason):
self.end_radiobuttonshow_signal=True
if self.shower<>None:
self.shower.terminate(reason)
elif self.player<>None:
self.player.terminate(reason)
else:
self.end(reason,'terminated without terminating shower or player')
# respond to inputs
def input_pressed(self,symbol,edge,source):
self.mon.log(self,"received symbol: " + symbol)
#does the symbol match a link, if so execute it
if self.is_link(symbol,edge,source)==True:
return
# controls are disabled so ignore inputs
if self.show_params['disable-controls']=='yes':
return
# does it match a control
# if at top convert symbolic name to operation otherwise lower down we have received an operatio
# look through list of controls to find match
if self.top==True:
operation=self.lookup_control(symbol,self.controls_list)
else:
operation=symbol
# print 'operation',operation
if operation<>'':
self.do_operation(operation,edge,source)
def do_operation(self,operation,edge,source):
if self.shower<>None:
# if next lower show is running pass down to stop the show and lower level
self.shower.input_pressed(operation,edge,source)
else:
#control this show and its tracks
if operation=='stop':
if self.player<>None:
if self.current_track_ref==self.first_track_ref and self.top==False:
self.end_radiobuttonshow_signal=True
self.player.input_pressed('stop')
elif operation == 'pause':
if self.player<>None:
self.player.input_pressed(operation)
elif operation[0:4]=='omx-' or operation[0:6]=='mplay-'or operation[0:5]=='uzbl-':
if self.player<>None:
self.player.input_pressed(operation)
def lookup_control(self,symbol,controls_list):
for control in controls_list:
if symbol == control[0]:
return control[1]
return ''
def is_link(self,symbol,edge,source):
# we have links which locally define symbolic names to be converted to radiobuttonshow operations
# find the first entry in links that matches the symbol and execute its operation
#print 'radiobuttonshow ',symbol
found=False
for link in self.links:
#print link
if symbol==link[0]:
found=True
if link[1]<>'null':
#print 'match',link[0]
link_operation=link[1]
if link_operation=='play':
self.do_play(link[2],edge,source)
return found
# *********************
# INTERNAL FUNCTIONS
# ********************
# *********************
# Show Sequencer
# *********************
def timeout_callback(self):
self.do_play(self.first_track_ref,'front','timeout')
def do_play(self,track_ref,edge,source):
if track_ref<>self.current_track_ref:
# print 'executing play ',track_ref
self.next_track_signal=True
self.next_track_op='play'
self.next_track_arg=track_ref
if self.shower<>None:
self.shower.input_pressed('stop',edge,source)
elif self.player<>None:
self.player.input_pressed('stop')
else:
self.what_next()
def do_first_track(self):
index = self.medialist.index_of_track(self.first_track_ref)
if index >=0:
#don't use select the track as not using selected_track in radiobuttonshow
first_track=self.medialist.track(index)
self.path.append(first_track['track-ref'])
self.current_track_ref=self.first_track_ref
self.play_selected_track(first_track)
else:
self.mon.err(self,"first-track not found in medialist: "+ self.show_params['first-frack-ref'])
self.end('error',"first track not found in medialist")
def what_next(self):
# user wants to end the show
if self.end_radiobuttonshow_signal==True:
self.end_radiobuttonshow_signal=False
self.end('normal',"show ended by user")
# user has selected another track
elif self.next_track_signal==True:
self.next_track_signal=False
self.next_track_ref=self.next_track_arg
self.current_track_ref=self.next_track_ref
index = self.medialist.index_of_track(self.next_track_ref)
if index >=0:
#don't use select the track as not using selected_track in radiobuttonshow
next_track=self.medialist.track(index)
self.play_selected_track(next_track)
else:
self.mon.err(self,"next-track not found in medialist: "+ self.next_track_ref)
self.end('error',"next track not found in medialist")
else:
#track ends naturally
self.next_track_ref=self.first_track_ref
self.current_track_ref=self.next_track_ref
index = self.medialist.index_of_track(self.next_track_ref)
if index >=0:
#don't use select the track as not using selected_track in radiobuttonshow
next_track=self.medialist.track(index)
self.play_selected_track(next_track)
else:
self.mon.err(self,"next-track not found in medialist: "+ self.next_track_ref)
self.end('error',"next track not found in medialist")
# *********************
# Dispatching to Players
# *********************
def page_callback(self):
# called from a Player when ready to play, if first-track merge the links from the track with those from the show
self.delete_eggtimer()
if self.current_track_ref==self.first_track_ref:
#links_text=self.player.get_links()
#reason,message,track_links=self.path.parse_links(links_text)
#if reason=='error':
#self.mon.err(self,message + " in page")
#self.end('error',message)
#self.path.merge_links(self.links,track_links)
pass
def play_selected_track(self,selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
if self.timeout_running<>None:
self.canvas.after_cancel(self.timeout_running)
self.timeout_running=None
# self.display_eggtimer(self.resource('radiobuttonshow','m01'))
self.current_track_type = selected_track['type']
#start timeout for the track if required
if self.current_track_ref<>self.first_track_ref and int(self.show_params['timeout'])<>0:
self.timeout_running=self.canvas.after(int(self.show_params['timeout'])*1000,self.timeout_callback)
# dispatch track by type
self.player=None
self.shower=None
track_type = selected_track['type']
self.mon.log(self,"Track type is: "+ track_type)
if track_type=="video":
# create a videoplayer
track_file=self.complete_path(selected_track)
self.player=VideoPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type=="audio":
# create a audioplayer
track_file=self.complete_path(selected_track)
self.player=AudioPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type=="image":
track_file=self.complete_path(selected_track)
self.player=ImagePlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False,
)
elif track_type=="web":
# create a browser
track_file=self.complete_path(selected_track)
self.player=BrowserPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type=="message":
# bit odd because MessagePlayer is used internally to display text.
text=selected_track['text']
self.player=MessagePlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(text,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False
)
elif track_type=="show":
# self.enable_click_areas()
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >=0:
self.showlist.select(index)
selected_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ selected_track['sub-show'])
self.end("Unknown show")
if selected_show['type']=="mediashow":
self.shower= MediaShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="liveshow":
self.shower= LiveShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="radiobuttonshow":
self.shower= RadioButtonShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="hyperlinkshow":
self.shower= HyperlinkShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="menu":
self.shower= MenuShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
else:
self.mon.err(self,"Unknown Show Type: "+ selected_show['type'])
self.end("Unknown show type")
else:
self.mon.err(self,"Unknown Track Type: "+ track_type)
self.end("Unknown track type")
# callback from when player ends
def end_player(self,reason,message):
self.mon.log(self,"Returned from player with message: "+ message)
self.player=None
# this does not seem to change the colour of the polygon
# self.canvas.itemconfig('pp-click-area',state='hidden')
self.canvas.update_idletasks( )
if reason in("killed","error"):
self.end(reason,message)
else:
#self.display_eggtimer(self.resource('radiobuttonshow','m02'))
self.what_next()
# callback from when shower ends
def end_shower(self,show_id,reason,message):
self.mon.log(self,"Returned from shower with message: "+ message)
self.shower=None
# self.canvas.itemconfig('pp-click-area',state='hidden')
self.canvas.update_idletasks( )
if reason in ("killed","error"):
self.end(reason,message)
else:
#self.display_eggtimer(self.resource('radiobuttonshow','m03'))
self.what_next()
# *********************
# End the show
# *********************
# finish the player for killing, error or normally
# this may be called directly sub/child shows or players are not running
# if they might be running then need to call terminate.
def end(self,reason,message):
self.mon.log(self,"Ending radiobuttonshow: "+ self.show_params['show-ref'])
self.end_callback(self.show_id,reason,message)
self=None
return
# *********************
# displaying things
# *********************
def display_eggtimer(self,text):
#self.egg_timer=self.canvas.create_text(int(self.canvas['width'])/2,
#int(self.canvas['height'])/2,
#text= text,
# fill='white',
# font="Helvetica 20 bold")
#self.canvas.update_idletasks( )
pass
def delete_eggtimer(self):
if self.egg_timer!=None:
self.canvas.delete(self.egg_timer)
# *********************
# utilities
# *********************
def complete_path(self,selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file<>'' and track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Track to play is: "+ track_file)
return track_file
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
# players or showers may be running so need terminate
self.terminate("error")
else:
return value
class ShowManager:
# ShowManager manages PiPresents' concurrent shows. It does not manage sub-shows or child-shows.
# concurrent shows are always 'top level' shows:
# They can be started by the start show or by 'myshow start' in the Show Control field of players
# They can be stopped either by 'myshow stop' in the Show Control field in players
# or in the case of mediashows by making them single-run in its Repeat field
# a show with the same reference should not be run twice as there is no way to reference an individual instance when stopping
# ??? this could be changed as there is single-run to stop them, the stop command could stop all instances.
# Declare class variables
shows = []
shutdown_required = False
SHOW_TEMPLATE = ['', None]
SHOW_REF = 0 # show-reference - name of the show as in editor
SHOW_OBJ = 1 # the python object
def __init__(self, show_id, showlist, show_params, root, canvas, pp_dir,
pp_profile, pp_home):
self.showlist = showlist
self.show_params = show_params
self.root = root
self.canvas = canvas
self.pp_dir = pp_dir
self.pp_profile = pp_profile
self.pp_home = pp_home
self.show_id = show_id
self.mon = Monitor()
self.mon.on()
# Initialise, first time through only in pipresents.py
def init(self, all_shows_ended_callback):
ShowManager.all_shows_ended_callback = all_shows_ended_callback
ShowManager.shows = []
ShowManager.shutdown_required = False
# **************************************
# functions to manipulate show register
# **************************************
#adds a new concurrent show to the register if not already there, returns an index for use by start and stop
def register_show(self, ref):
registered = self.show_registered(ref)
if registered == -1:
ShowManager.shows.append(copy.deepcopy(ShowManager.SHOW_TEMPLATE))
index = len(ShowManager.shows) - 1
ShowManager.shows[index][ShowManager.SHOW_REF] = ref
ShowManager.shows[index][ShowManager.SHOW_OBJ] = None
return index
else:
return registered
# is the show registered?
# can be used to return the index to the show
def show_registered(self, show_ref):
index = 0
for show in ShowManager.shows:
if show[ShowManager.SHOW_REF] == show_ref:
return index
index += 1
return -1
# needs calling program to check that the show is not already running
def set_running(self, index, show_obj):
ShowManager.shows[index][ShowManager.SHOW_OBJ] = show_obj
# print 'running', ShowManager.shows
# print "started show ", ShowManager.shows[index][ShowManager.SHOW_REF]
# is the show running?
def show_running(self, index):
if ShowManager.shows[index][ShowManager.SHOW_OBJ] <> None:
return ShowManager.shows[index][ShowManager.SHOW_OBJ]
else:
return None
def set_stopped(self, index):
ShowManager.shows[index][ShowManager.SHOW_OBJ] = None
# print "stopped show ", ShowManager.shows[index][ShowManager.SHOW_REF]
#print 'stopping', ShowManager.shows
# are all shows stopped?
def all_shows_stopped(self):
all_stopped = True
for show in ShowManager.shows:
if show[ShowManager.SHOW_OBJ] <> None:
all_stopped = False
return all_stopped
# *********************************
# show control
# *********************************
# control initial shows from PiPresents so command is always start
def start_initial_shows(self, start_shows_text):
show_refs = start_shows_text.split()
fields = ['', '']
for show_ref in show_refs:
fields[0] = show_ref
fields[1] = 'start'
reason, message = self.control_a_show(fields)
if reason <> 'normal':
return reason, message
#no shows started
return 'normal', ''
# Control shows from Players so need to handle start and stop commands
def show_control(self, show_control_text):
lines = show_control_text.split('\n')
for line in lines:
if line.strip() == "":
continue
fields = line.split()
#control a show and return its ending reason
# print 'show control fields: ',fields
reason, message = self.control_a_show(fields)
if reason <> 'normal':
return reason, message
#all commands done OK
return 'normal', ''
def control_a_show(self, fields):
show_ref = fields[0]
show_command = fields[1]
if show_command == 'start':
return self.start_show(show_ref)
elif show_command == 'stop':
return self.stop_show(show_ref)
elif show_command == 'exit':
return self.stop_all_shows()
elif show_command == 'shutdownnow':
ShowManager.shutdown_required = True
return self.stop_all_shows()
else:
return 'error', 'command not recognised ' + show_command
def stop_show(self, show_ref):
index = self.show_registered(show_ref)
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Stopping show " + show_ref + ' ' + str(index))
show_obj = self.show_running(index)
if show_obj <> None:
show_obj.managed_stop()
return 'normal', 'stopped a concurrent show'
def stop_all_shows(self):
for show in ShowManager.shows:
self.stop_show(show[ShowManager.SHOW_REF])
return 'normal', 'stopped all shows'
def start_show(self, show_ref):
show_index = self.showlist.index_of_show(show_ref)
if show_index < 0:
return 'error', "Show not found in showlist: " + show_ref
show = self.showlist.show(show_index)
index = self.register_show(show_ref)
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Starting show " + show_ref + ' ' + str(index))
if self.show_running(index):
self.mon.log(self, "show already running " + show_ref)
return 'normal', 'this concurrent show already running'
if show['type'] == "mediashow":
show_obj = MediaShow(show, self.root, self.canvas, self.showlist,
self.pp_dir, self.pp_home, self.pp_profile)
self.set_running(index, show_obj)
show_obj.play(index,
self._end_play_show,
None,
top=True,
command='nil')
return 'normal', 'concurrent show started'
if show['type'] == "radiobuttonshow":
show_obj = RadioButtonShow(show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.set_running(index, show_obj)
show_obj.play(index,
self._end_play_show,
None,
top=True,
command='nil')
return 'normal', 'concurrent show started'
if show['type'] == "hyperlinkshow":
show_obj = HyperlinkShow(show, self.root, self.canvas,
self.showlist, self.pp_dir, self.pp_home,
self.pp_profile)
self.set_running(index, show_obj)
show_obj.play(index,
self._end_play_show,
None,
top=True,
command='nil')
return 'normal', 'concurrent show started'
elif show['type'] == "menu":
show_obj = MenuShow(show, self.root, self.canvas, self.showlist,
self.pp_dir, self.pp_home, self.pp_profile)
self.set_running(index, show_obj)
show_obj.play(index,
self._end_play_show,
None,
top=True,
command='nil')
return 'normal', 'concurrent show started'
elif show['type'] == "liveshow":
show_obj = LiveShow(show, self.root, self.canvas, self.showlist,
self.pp_dir, self.pp_home, self.pp_profile)
self.set_running(index, show_obj)
show_obj.play(index,
self._end_play_show,
None,
top=True,
command='nil')
return 'normal', 'concurrent show started'
else:
return 'error', "unknown show type in start concurrent show - " + show[
'type']
def _end_play_show(self, index, reason, message):
self.mon.log(
self, self.show_params['show-ref'] + ' ' + str(self.show_id) +
": Returned from show with message: " + message)
# print 'returned to showplayer'
self.set_stopped(index)
if self.all_shows_stopped() == True:
ShowManager.all_shows_ended_callback('normal', 'All shows ended',
ShowManager.shutdown_required)
return reason, message
class ScreenDriver:
config = None
def __init__(self):
self.mon = Monitor()
self.mon.on()
#read screen.cfg
def read(self, pp_dir, pp_home, pp_profile):
if ScreenDriver.config == None:
# try inside profile
tryfile = pp_profile + os.sep + "screen.cfg"
# self.mon.log(self,"Trying screen.cfg in profile at: "+ tryfile)
if os.path.exists(tryfile):
filename = tryfile
else:
# try inside pp_home
# self.mon.log(self,"screen.cfg not found at "+ tryfile+ " trying pp_home")
tryfile = pp_home + os.sep + "screen.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
# try inside pipresents
# self.mon.log(self,"screen.cfg not found at "+ tryfile + " trying inside pipresents")
tryfile = pp_dir + os.sep + 'pp_home' + os.sep + "screen.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
self.mon.log(self,
"screen.cfg not found at " + tryfile)
self.mon.err(self, "screen.cfg not found")
return False
ScreenDriver.config = ConfigParser.ConfigParser()
ScreenDriver.config.read(filename)
self.mon.log(self, "screen.cfg read from " + filename)
return True
def click_areas(self):
return ScreenDriver.config.sections()
def get(self, section, item):
return ScreenDriver.config.get(section, item)
# make click areas on the screen, bind them to their symbolic name, and create a callback if it is clicked.
# click areas must be polygon as outline rectangles are not filled as far as find_closest goes
def make_click_areas(self, canvas, callback):
self.canvas = canvas
self.callback = callback
reason = ''
for area in self.click_areas():
reason, message, points = self.parse_points(
self.get(area, 'points'), self.get(area, 'name'))
if reason == 'error':
break
self.canvas.create_polygon(
points,
fill=self.get(area, 'fill-colour'),
outline=self.get(area, 'outline-colour'),
tags=("pp-click-area", self.get(area, 'name')),
state='hidden')
# write the label at the centroid
if self.get(area, 'text') <> '':
vertices = len(points) / 2
# print area, 'vertices',vertices
sum_x = 0
sum_y = 0
for i in range(0, vertices):
# print i
sum_x = sum_x + int(points[2 * i])
# print int(points[2*i])
sum_y = sum_y + int(points[2 * i + 1])
# print int(points[2*i+1])
text_centre_x = sum_x / vertices
text_centre_y = sum_y / vertices
self.canvas.create_text(text_centre_x,
text_centre_y,
text=self.get(area, 'text'),
fill=self.get(area, 'text-colour'),
font=self.get(area, 'text-font'),
tags=('pp-click-area',
self.get(area, 'name')),
state='hidden')
self.canvas.bind('<Button-1>', self.click_pressed)
if reason == 'error':
return 'error', message
else:
return 'normal', ''
# callback for click on screen
def click_pressed(self, event):
overlapping = event.widget.find_overlapping(event.x - 5, event.y - 5,
event.x + 5, event.y + 5)
for item in overlapping:
#print self.canvas.gettags(item)
if ('pp-click-area'
in self.canvas.gettags(item)) and self.canvas.itemcget(
item, 'state') == 'normal':
self.mon.log(
self, "Click on screen: " + self.canvas.gettags(item)[1])
self.callback(self.canvas.gettags(item)[1], 'front', 'screen')
def parse_points(self, points_text, area):
if points_text.strip() == '':
return 'error', 'No points in click area: ' + area, []
points = points_text.split()
if len(points) < 6:
return 'error', 'Less than 3 vertices in click area: ' + area, []
if len(points) % 2 <> 0:
return 'error', 'Odd number of points in click area: ' + area, []
for point in points:
if not point.isdigit():
return 'error','point is not a positive integer in click area: '+area,[]
return 'normal', 'parsed points OK', points
class PPIO:
"""
PPIO provides some IO facilties for Pi presents
- configures GPIO pins from data in gpio.cfg
- reads and debounces inputs pins, provides callbacks on state changes which are used to trigger mediashows
- for output pins allows players to put events, which request the change of state of pins, into a queue. Events are executed at the required time.
"""
# constants for buttons
# cofiguration from gpio.cfg
PIN=0 # pin on RPi board GPIO connector e.g. P1-11
DIRECTION = 1 # IN/OUT/NONE (None is not used)
NAME = 2 # name for output
RISING_NAME=3 # name for rising edge callback
FALLING_NAME=4 # name ofr falling edge callback
ONE_NAME=5 # name for one state callback
ZERO_NAME = 6 # name for zero state callback
REPEAT = 7 #reperat interval for state callbacks (mS)
THRESHOLD = 8 # threshold of debounce count for state change to be considered
PULL = 9 # pull up or down or none
# dynamic data
COUNT=10 # variable - count of the number of times the input has been 0 (limited to threshold)
PRESSED = 11 # variable - debounced state
LAST = 12 # varible - last state - used to detect edge
REPEAT_COUNT = 13
TEMPLATE = ['', #pin
'', # direction
'', #name
'','','','', #input names
0, # repeat
0, #threshold
'', #pull
0,False,False,0] #dynamics
PINLIST = ('P1-03','P1-05','P1-07','P1-08',
'P1-10','P1-11','P1-12','P1-13','P1-15','P1-16','P1-18','P1-19',
'P1-21','P1-22','P1-23','P1-24','P1-26')
# index of shutdown pin
SHUTDOWN_INDEX=0
# constants for sequencer
SEQUENCER_PIN = 0 # GPIO pin number, the xx in P1-xx
SEQUENCER_TO_STATE = 1 # False = off , True =on
SEQUENCER_TIME = 2 # time since the epoch in seconds
SEQUENCER_TAG = 3 # tag used to delete all matching event, usually a track reference.
# CLASS VARIABLES
events=[]
pins=[]
last_poll_time=0
options=None
# gpio_enabled=False
EVENT_TEMPLATE=[0,False,0,None]
#executed by main program and by each object using gpio
def __init__(self):
self.mon=Monitor()
self.mon.on()
self.options=command_options()
# executed once from main program
def init(self,pp_dir,pp_home,pp_profile,widget,button_tick,callback=None):
# instantiate arguments
self.widget=widget
self.pp_dir=pp_dir
self.pp_profile=pp_profile
self.pp_home=pp_home
self.button_tick=button_tick
self.callback=callback
PPIO.SHUTDOWN_INDEX=0
# read gpio.cfg file.
if self.read(self.pp_dir,self.pp_home,self.pp_profile)==False:
return False
import RPi.GPIO as GPIO
self.GPIO = GPIO
#construct the GPIO control list from the configuration
for index, pin_def in enumerate(PPIO.PINLIST):
pin=copy.deepcopy(PPIO.TEMPLATE)
pin_bits = pin_def.split('-')
pin_num=pin_bits[1:]
pin[PPIO.PIN]=int(pin_num[0])
if self.config.has_section(pin_def)==False:
self.mon.log(self, "no pin definition for "+ pin_def)
pin[PPIO.DIRECTION]='None'
else:
# unused pin
if self.config.get(pin_def,'direction')=='none':
pin[PPIO.DIRECTION]='none'
else:
pin[PPIO.DIRECTION]=self.config.get(pin_def,'direction')
if pin[PPIO.DIRECTION]=='in':
# input pin
pin[PPIO.RISING_NAME]=self.config.get(pin_def,'rising-name')
pin[PPIO.FALLING_NAME]=self.config.get(pin_def,'falling-name')
pin[PPIO.ONE_NAME]=self.config.get(pin_def,'one-name')
pin[PPIO.ZERO_NAME]=self.config.get(pin_def,'zero-name')
if pin[PPIO.FALLING_NAME]=='pp-shutdown':
PPIO.SHUTDOWN_INDEX=index
if self.config.get(pin_def,'repeat')<>'':
pin[PPIO.REPEAT]=int(self.config.get(pin_def,'repeat'))
else:
pin[PPIO.REPEAT]=-1
pin[PPIO.THRESHOLD]=int(self.config.get(pin_def,'threshold'))
if self.config.get(pin_def,'pull-up-down')=='up':
pin[PPIO.PULL]=GPIO.PUD_UP
elif self.config.get(pin_def,'pull-up-down')=='down':
pin[PPIO.PULL]=GPIO.PUD_DOWN
else:
pin[PPIO.PULL]=GPIO.PUD_OFF
else:
# output pin
pin[PPIO.NAME]=self.config.get(pin_def,'name')
# print pin
PPIO.pins.append(copy.deepcopy(pin))
# setup GPIO
self.GPIO.setwarnings(False)
self.GPIO.setmode(self.GPIO.BOARD)
# set up the GPIO inputs and outputs
for index, pin in enumerate(PPIO.pins):
num = pin[PPIO.PIN]
if pin[PPIO.DIRECTION]=='in':
self.GPIO.setup(num,self.GPIO.IN,pull_up_down=pin[PPIO.PULL])
elif pin[PPIO.DIRECTION]=='out':
self.GPIO.setup(num,self.GPIO.OUT)
self.GPIO.setup(num,False)
self.reset_inputs()
PPIO.gpio_enabled=True
#init timer
self.button_tick_timer=None
PPIO.last_scheduler_time=long(time.time())
return True
# called by main program only
def poll(self):
# look at the buttons
self.do_buttons()
# kick off output pin sequencer
poll_time=long(time.time())
# is current time greater than last time the sceduler was run (previous second or more)
# run in a loop to catch up because root.after can get behind when images are being rendered etc.
while PPIO.last_scheduler_time<=poll_time:
self.do_sequencer(PPIO.last_scheduler_time)
PPIO.last_scheduler_time +=1
# and loop
self.button_tick_timer=self.widget.after(self.button_tick,self.poll)
# called by main program only
def terminate(self):
if self.button_tick_timer<>None:
self.widget.after_cancel(self.button_tick_timer)
self.clear_events_list(None)
self.reset_outputs()
self.GPIO.cleanup()
# ************************************************
# gpio input functions
# called by main program only
# ************************************************
def reset_inputs(self):
for pin in PPIO.pins:
pin[PPIO.COUNT]=0
pin[PPIO.PRESSED]==False
pin[PPIO.LAST]==False
pin[PPIO.REPEAT_COUNT]=pin[PPIO.REPEAT]
# index is of the pins array, provided by the callback ***** needs to be name
def shutdown_pressed(self):
if PPIO.SHUTDOWN_INDEX<>0:
return PPIO.pins[PPIO.SHUTDOWN_INDEX][PPIO.PRESSED]
else:
return False
def do_buttons(self):
for index, pin in enumerate(PPIO.pins):
if pin[PPIO.DIRECTION]=='in':
# debounce
if self.GPIO.input(pin[PPIO.PIN])==0:
if pin[PPIO.COUNT]<pin[PPIO.THRESHOLD]:
pin[PPIO.COUNT]+=1
if pin[PPIO.COUNT]==pin[PPIO.THRESHOLD]:
pin[PPIO.PRESSED]=True
else: # input us 1
if pin[PPIO.COUNT]>0:
pin[PPIO.COUNT]-=1
if pin[PPIO.COUNT]==0:
pin[PPIO.PRESSED]=False
#detect edges
# falling edge
if pin[PPIO.PRESSED]==True and pin[PPIO.LAST]==False:
pin[PPIO.LAST]=pin[PPIO.PRESSED]
pin[PPIO.REPEAT_COUNT]=pin[PPIO.REPEAT]
if pin[PPIO.FALLING_NAME]<>'' and self.callback <> None:
self.callback(index, pin[PPIO.FALLING_NAME],"falling")
#rising edge
if pin[PPIO.PRESSED]==False and pin[PPIO.LAST]==True:
pin[PPIO.LAST]=pin[PPIO.PRESSED]
pin[PPIO.REPEAT_COUNT]=pin[PPIO.REPEAT]
if pin[PPIO.RISING_NAME]<>'' and self.callback <> None:
self.callback(index, pin[PPIO.RISING_NAME],"rising")
# do state callbacks
if pin[PPIO.REPEAT_COUNT]==0:
if pin[PPIO.ZERO_NAME]<>'' and pin[PPIO.PRESSED]==True and self.callback<>None:
self.callback(index, pin[PPIO.ZERO_NAME],"zero")
if pin[PPIO.ONE_NAME]<>'' and pin[PPIO.PRESSED]==False and self.callback<>None:
self.callback(index, pin[PPIO.ONE_NAME],"zero")
pin[PPIO.REPEAT_COUNT]=pin[PPIO.REPEAT]
else:
if pin[PPIO.REPEAT]<>-1:
pin[PPIO.REPEAT_COUNT]-=1
# ************************************************
# gpio output sequencer functions
# ************************************************
# execute events at the appropriate time and remove from list (runs from main program only)
# runs through list a number of times because of problems with pop messing up list
def do_sequencer(self,schedule_time):
# print 'sequencer run for: ' + str(schedule_time) + ' at ' + str(long(time.time()))
while True:
event_found=False
for index, item in enumerate(PPIO.events):
if item[PPIO.SEQUENCER_TIME]<=schedule_time:
event=PPIO.events.pop(index)
event_found=True
self.do_event(event[PPIO.SEQUENCER_PIN],event[PPIO.SEQUENCER_TO_STATE],item[PPIO.SEQUENCER_TIME])
break
if event_found==False: break
# execute an event
def do_event(self,pin,to_state,req_time):
self.mon.log (self,'pin P1-'+ str(pin)+ ' set '+ str(to_state) + ' required: ' + str(req_time)+ ' actual: ' + str(long(time.time())))
# print 'pin P1-'+ str(pin)+ ' set '+ str(to_state) + ' required: ' + str(req_time)+ ' actual: ' + str(long(time.time()))
self.GPIO.output(pin,to_state)
# ************************************************
# gpio output sequencer interface methods
# these can be called from many classes so need to operate on class variables
# ************************************************
def animate(self,text,tag):
if self.options['gpio']==True:
lines = text.split("\n")
for line in lines:
error_text=self.parse_animate_fields(line,tag)
if error_text <>'':
return 'error',error_text
return 'normal',''
return 'normal',''
# clear event list
def clear_events_list(self,tag):
if self.options['gpio']==True:
self.mon.log(self,'clear events list ')
# empty event list
if tag==None:
PPIO.events=[]
else:
self.remove_events(tag)
def reset_outputs(self):
if self.options['gpio']==True:
self.mon.log(self,'reset outputs')
for index, pin in enumerate(PPIO.pins):
num = pin[PPIO.PIN]
if pin[PPIO.DIRECTION]=='out':
self.GPIO.output(num,False)
# ************************************************
# internal functions
# these can be called from many classes so need to operate on class variables
# ************************************************
def parse_animate_fields(self,line,tag):
fields= line.split()
if len(fields)==0:
return ''
name=fields[0]
pin= self.pin_of(name)
if pin ==-1:
return 'Unknown gpio logical output in: ' + line
to_state_text=fields[1]
if not (to_state_text in ('on','off')):
return 'Illegal to-state in : '+ line
if to_state_text == 'on':
to_state=True
else:
to_state=False
if len(fields)==2:
delay_text='0'
else:
delay_text=fields[2]
if not delay_text.isdigit():
return 'Delay is not an integer in : '+ line
delay=int(delay_text)
self.add_event(pin,to_state,delay,tag)
# self.print_events()
return ''
def pin_of(self,name):
for pin in PPIO.pins:
# print " in list" + pin[PPIO.NAME] + str(pin[PPIO.PIN] )
if pin[PPIO.NAME]==name and pin[PPIO.DIRECTION]=='out':
return pin[PPIO.PIN]
return -1
def print_events(self):
print
for i in PPIO.events:
print i
def add_event(self,sequencer_pin,sequencer_to_state,sequencer_time,sequencer_tag):
poll_time=long(time.time())
# delay is 0 so just do it, don't queue it.
#if sequencer_time == 0:
#print "firing now",poll_time
#self.do_event(sequencer_pin,sequencer_to_state,poll_time)
#return
# prepare the event
event=PPIO.EVENT_TEMPLATE
event[PPIO.SEQUENCER_PIN]=sequencer_pin
event[PPIO.SEQUENCER_TO_STATE]=sequencer_to_state
event[PPIO.SEQUENCER_TIME]=sequencer_time+poll_time+1
event[PPIO.SEQUENCER_TAG]=sequencer_tag
# print event
# find the place in the events list and insert
# first item in the list is earliest, if two have the same time then last to be added is fired last.
abs_time=sequencer_time+poll_time
copy_event= copy.deepcopy(event)
for index, item in enumerate(PPIO.events):
if abs_time<item[PPIO.SEQUENCER_TIME]:
PPIO.events.insert(index,copy_event)
return copy_event
PPIO.events.append(copy_event)
return copy_event
# remove an event not used and does not work
def remove_event(self,event):
for index, item in enumerate(PPIO.events):
if event==item:
del PPIO.events[index]
return True
return False
# remove all the events with the same tag, usually a track reference
def remove_events(self,tag):
left=[]
for item in PPIO.events:
if tag<>item[PPIO.SEQUENCER_TAG]:
left.append(item)
PPIO.events= left
#self.print_events()
# ***********************************
# reading gpio.cfg functions
# ************************************
def read(self,pp_dir,pp_home,pp_profile):
# try inside profile
tryfile=pp_profile+os.sep+"gpio.cfg"
# self.mon.log(self,"Trying gpio.cfg in profile at: "+ tryfile)
if os.path.exists(tryfile):
filename=tryfile
else:
# try inside pp_home
# self.mon.log(self,"gpio.cfg not found at "+ tryfile+ " trying pp_home")
tryfile=pp_home+os.sep+"gpio.cfg"
if os.path.exists(tryfile):
filename=tryfile
else:
# try inside pipresents
# self.mon.log(self,"gpio.cfg not found at "+ tryfile + " trying inside pipresents")
tryfile=pp_dir+os.sep+'pp_home'+os.sep+"gpio.cfg"
if os.path.exists(tryfile):
filename=tryfile
else:
self.mon.log(self,"gpio.cfg not found at "+ tryfile)
self.mon.err(self,"gpio.cfg not found")
return False
self.config = ConfigParser.ConfigParser()
self.config.read(filename)
self.mon.log(self,"gpio.cfg read from "+ filename)
return True
class EditItem(tkSimpleDialog.Dialog):
def __init__(self, parent, title, field_content, record_specs,field_specs,show_refs,initial_media_dir,pp_home_dir,initial_tab):
self.mon=Monitor()
self.mon.on()
#save the extra arg to instance variable
self.field_content = field_content # dictionary - the track parameters to be edited
self.record_specs= record_specs # list of field names and seps/tabs in the order that they appear
self.field_specs=field_specs # disctionary of specs referenced by field name
self.show_refs=show_refs
self.show_refs.append('')
self.initial_media_dir=initial_media_dir
self.pp_home_dir=pp_home_dir
self.initial_tab=initial_tab
# list of stringvars from which to get edited values (for optionmenu only??)
self.entries=[]
#and call the base class _init_which calls body immeadiately and apply on OK pressed
tkSimpleDialog.Dialog.__init__(self, parent, title)
def body(self,root):
self.root=root
bar = TabBar(root, init_name=self.initial_tab)
self.body_fields(root,bar)
# bar.config(bd=1, relief=RIDGE) # add some border
bar.show()
def body_fields(self, master,bar):
# get fields for this record using the record type in the loaded record
record_fields=self.record_specs[self.field_content['type']]
# init results of building the form
self.tab_row=1 # row on form
self.fields=[] # generated by body_fields - list of field objects in record fields order, not for sep or tab
self.field_index=0 # index to self.fields incremented after each field except tab and sep
self.entries=[] # generated by body_fields - list of stringvars in record fields order, used option-menus only
# populate the dialog box using the record fields to determine the order
for field in record_fields:
#get list of values where required
values=[]
if self.field_specs[field]['shape']in("option-menu",'spinbox'):
if self.field_specs[field]['param']in ('sub-show','start-show','controlled-show'):
values=self.show_refs
else:
values=self.field_specs[field]['values']
else:
values=[]
# make the entry
obj=self.make_entry(master,self.field_specs[field],values,bar)
if obj<>None:
self.fields.append(obj)
self.field_index +=1
return None # No initial focus
# create an entry in a dialog box
def make_entry(self,master,field_spec,values,bar):
# print 'make row',self.field_index,field_spec['shape']
if field_spec['shape']=='tab':
self.current_tab = Tab(master, field_spec['name'])
bar.add(self.current_tab,field_spec['text'])
self.tab_row=1
return None
elif field_spec['shape']=='sep':
Label(self.current_tab,text='', anchor=W).grid(row=self.tab_row,column=0,sticky=W)
self.tab_row+=1
return None
else:
# get the name of the field
parameter=field_spec['param']
# print 'content', parameter, self.field_content[field_spec['param']]
# is it in the field content dictionary
if not parameter in self.field_content:
self.mon.log(self,"Value for field not found in opened file: " + parameter)
return None
else:
if field_spec['must']=='yes':
bg='pink'
else:
bg='white'
#write the label
Label(self.current_tab,text=field_spec['text'], anchor=W).grid(row=self.tab_row,column=0,sticky=W)
# make the editable field
if field_spec['shape']in ('entry','colour','browse','font'):
obj=Entry(self.current_tab,bg=bg,width=40,font='arial 11')
obj.insert(END,self.field_content[field_spec['param']])
elif field_spec['shape']=='text':
obj=ScrolledText(self.current_tab,bg=bg,height=8,width=40,font='arial 11')
obj.insert(END,self.field_content[field_spec['param']])
elif field_spec['shape']=='spinbox':
obj=Spinbox(self.current_tab,bg=bg,values=values,wrap=True)
obj.insert(END,self.field_content[field_spec['param']])
elif field_spec['shape']=='option-menu':
self.option_val = StringVar(self.current_tab)
self.option_val.set(self.field_content[field_spec['param']])
obj = apply(OptionMenu, [self.current_tab, self.option_val] + values)
self.entries.append(self.option_val)
else:
self.mon.log(self,"Uknown shape for: " + parameter)
return None
if field_spec['read-only']=='yes':
obj.config(state="readonly",bg='dark grey')
obj.grid(row=self.tab_row,column=1,sticky=W)
#display buttons where required
if field_spec['shape']=='browse':
but=Button(self.current_tab,width=1,height=1,bg='dark grey',command=(lambda o=obj: self.browse(o)))
but.grid(row=self.tab_row,column=2,sticky=W)
elif field_spec['shape']=='colour':
but=Button(self.current_tab,width=1,height=1,bg='dark grey',command=(lambda o=obj: self.pick_colour(o)))
but.grid(row=self.tab_row,column=2,sticky=W)
elif field_spec['shape']=='font':
but=Button(self.current_tab,width=1,height=1,bg='dark grey',command=(lambda o=obj: self.pick_font(o)))
but.grid(row=self.tab_row,column=2,sticky=W)
self.tab_row+=1
return obj
def apply(self):
# get list of fields in the record in the same order as the form was generated
record_fields=self.record_specs[self.field_content['type']]
field_index=0 # index to self.fields - not incremented for tab and sep
entry_index=0 # index of stringvars for option_menu
for field in record_fields:
# get the details of this field
field_spec=self.field_specs[field]
# print 'reading row',field_index,field_spec['shape']
# and get the value
if field_spec['shape']not in ('sep','tab'):
# print field_spec['param']
if field_spec['shape']=='text':
self.field_content[field_spec['param']]=self.fields[field_index].get(1.0,END).rstrip('\n')
elif field_spec['shape']=='option-menu':
self.field_content[field_spec['param']]=self.entries[entry_index].get()
entry_index+=1
else:
self.field_content[field_spec['param']]=self.fields[field_index].get().strip()
# print self.field_content[field_spec['param']]
field_index +=1
self.result=True
return self.result
def pick_colour(self,obj):
rgb,colour=askcolor()
#print rgb,colour
if colour<>None:
obj.delete(0,END)
obj.insert(END,colour)
def pick_font(self,obj):
font=askChooseFont(self.root)
print font
if font<>None:
obj.delete(0,END)
obj.insert(END,font)
def browse(self,obj):
# print "initial directory ", self.options.initial_media_dir
file_path=tkFileDialog.askopenfilename(initialdir=self.initial_media_dir, multiple=False)
if file_path=='':
return
file_path=os.path.normpath(file_path)
#print "file path ", file_path
relpath = os.path.relpath(file_path,self.pp_home_dir)
#print "relative path ",relpath
common = os.path.commonprefix([file_path,self.pp_home_dir])
#print "common ",common
if common.endswith("pp_home") == False:
obj.delete(0,END)
obj.insert(END,file_path)
else:
location = "+" + os.sep + relpath
location = string.replace(location,'\\','/')
#print "location ",location
obj.delete(0,END)
obj.insert(END,location)
def buttonbox(self):
'''add modified button box.
override standard one to get rid of key bindings which cause trouble with text widget
'''
box = Frame(self)
w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)
w.pack(side=LEFT, padx=5, pady=5)
w = Button(box, text="Cancel", width=10, command=self.cancel)
w.pack(side=LEFT, padx=5, pady=5)
#self.bind("<Return>", self.ok)
#self.bind("<Escape>", self.cancel)
box.pack()
class ShowList:
"""
manages a list of show and the show selected from the showlist
"""
IMAGE_FILES = ('Image files', '.gif', '.GIF', '.jpg', '.JPG', '.jpeg',
'.JPEG')
VIDEO_FILES = ('video files', '.mp4', '.MP4', '.mkv', '.MKV', '.avi',
'.AVI')
AUDIO_FILES = ('audio files', '.mp3', '.MP3')
def __init__(self):
self.mon = Monitor()
self.mon.on()
self.clear()
def clear(self):
self._shows = [] #MediaList, stored as a list of dicts
self._num_shows = 0
self._selected_show_index = -1 # index of currently selected show
def print_list(self):
print self._shows
def length(self):
return self._num_shows
def at_end(self):
if self._selected_show_index == self._num_shows - 1:
return True
else:
return False
def at_start(self):
if self._selected_show_index == 0:
return True
else:
return False
def show_is_selected(self):
if self._selected_show_index >= 0:
return True
else:
return False
def selected_show_index(self):
return self._selected_show_index
def shows(self):
return self._shows
def show(self, index):
return self._shows[index]
def selected_show(self):
"""returns a dictionary containing all fields in the selected show """
return self._selected_show
def append(self, show_dict):
"""appends a show dictionary to the end of the showlist store"""
self._shows.append(copy.deepcopy(show_dict))
self._num_shows += 1
def remove(self, index):
self._shows.pop(index)
self._num_shows -= 1
# deselect any show, saves worrying about whether index needs changing
self._selected_show_index = -1
def replace(self, index, replacement):
self._shows[index] = replacement
def first(self):
self.select(0)
def next(self):
if self.length() > 0:
if self._selected_show_index == self.length() - 1:
index = 0
else:
index = self._selected_show_index + 1
self.select(index)
def previous(self):
if self.length() > 0:
if self._selected_show_index == 0:
index = self.length() - 1
else:
index = self._selected_show_index - 1
self.select(index)
def index_of_show(self, wanted_show):
index = 0
for show in self._shows:
if show['show-ref'] == wanted_show:
return index
index += 1
return -1
def select(self, index):
"""
user clicks on a show in the Shows list so try and select it.
"""
# needs forgiving int for possible tkinter upgrade
self._selected_show_index = index
self._selected_show = self._shows[index]
def open_json(self, filename):
"""
opens a saved showlistlist
showlists are stored in files as json arrays within a object 'shows'.
shows are stored internally as a list of dictionaries in self._shows
"""
if filename != "" and os.path.exists(filename):
ifile = open(filename, 'rb')
sdict = json.load(ifile)
ifile.close()
self._shows = sdict['shows']
if 'issue' in sdict:
self.issue = sdict['issue']
else:
self.issue = "1.0"
self._num_shows = len(self._shows)
self._selected_show_index = -1
return True
else:
return False
def sissue(self):
return self.issue
def save_list(self, filename):
""" save a showlist """
if filename == "":
return False
if os.name == 'nt':
filename = string.replace(filename, '/', '\\')
else:
filename = string.replace(filename, '\\', '/')
print "save showlist ", filename
dic = {'issue': self.issue, 'shows': self._shows}
ofile = open(filename, "wb")
json.dump(dic, ofile, sort_keys=True, indent=1)
ofile.close()
return
# =====================================================
# old stuff
def open_cfg(self, filename):
"""
opens a saved showlist
each show is a section of a confiParser file
shows are stored as a list of dictionaries in self._shows
"""
if filename != "" and os.path.exists(filename):
self.config = ConfigParser.ConfigParser()
self.config.read(filename)
self._shows = []
for section in self.sections():
self._shows.append(self.dictionary_of(section))
self._num_shows = len(self._shows)
self._selected_show_index = -1
return True
else:
return False
def has_show(self, section):
return self.config.has_section(section)
def sections(self):
return self.config.sections()
def get(self, section, item):
return self.config.get(section, item, 0)
def dictionary_of(self, section):
return dict(self.config.items(section))
class mplayerDriver(object):
_STATUS_REXP = re.compile(r"V :\s*([\d.]+).*")
_DONE_REXP = re.compile(r"Exiting*")
_LAUNCH_CMD = 'mplayer -quiet '
def __init__(self,widget):
self.widget=widget
self.mon=Monitor()
self.mon.on()
self._process=None
self.paused=None
def control(self,char):
if self._process<>None:
self._process.send(char)
def pause(self):
if self._process<>None:
self._process.send('p')
if not self.paused:
self.paused = True
else:
self.paused=False
def play(self, track, options):
self._pp(track, options,False)
def prepare(self, track, options):
self._pp(track, options,True)
def show(self):
# unpause to start playing
if self._process<>None:
self._process.send('p')
self.paused = False
def stop(self):
if self._process<>None:
self._process.send('q')
# kill the subprocess (mplayer). Used for tidy up on exit.
def terminate(self,reason):
self.terminate_reason=reason
if self._process<>None:
self._process.send('q')
else:
self.end_play_signal=True
def terminate_reason(self):
return self.terminate_reason
# test of whether _process is running
def is_running(self):
return self._process.isalive()
# ***********************************
# INTERNAL FUNCTIONS
# ************************************
def _pp(self, track, options, pause_before_play):
self.paused=False
self.start_play_signal = False
self.end_play_signal=False
self.terminate_reason=''
track= "'"+ track.replace("'","'\\''") + "'"
cmd = mplayerDriver._LAUNCH_CMD + options +" " + track
self.mon.log(self, "Send command to mplayer: "+ cmd)
self._process = pexpect.spawn(cmd)
# uncomment to monitor output to and input from mplayer (read pexpect manual)
# fout= file('/home/pi/pipresents/mplayerlogfile.txt','w') #uncomment and change sys.stdout to fout to log to a file
#self._process.logfile_send = sys.stdout # send just commands to stdout
# self._process.logfile=fout # send all communications to log file
if pause_before_play:
self._process.send('p')
self.paused = True
#start the thread that is going to monitor sys.stdout. Presumably needs a thread because of blocking
self._position_thread = Thread(target=self._get_position)
self._position_thread.start()
def _get_position(self):
#print 'hang'
#while True:
#pass
self.start_play_signal = True
self.audio_position=0.0
while True:
index = self._process.expect([mplayerDriver._STATUS_REXP,
pexpect.TIMEOUT,
pexpect.EOF,
mplayerDriver._DONE_REXP])
if index == 1: continue # timeout - it doesn't block so is a thread needed?
elif index in (2, 3):
#Exiting
self.end_play_signal=True
break
else:
# presumably matches _STATUS_REXP so get video position
# has a bug, position is not displayed for an audio track (mp3). Need to look at another field in the status, but how to extract it
self.audio_position = 0.0
sleep(0.05)
class ControlsManager:
config = None
global_controls = []
def __init__(self):
self.mon = Monitor()
self.mon.on()
#read controls.cfg, done once in Pi Presents
def read(self, pp_dir, pp_home, pp_profile):
if ControlsManager.config == None:
# try inside profile
tryfile = pp_profile + os.sep + "controls.cfg"
# self.mon.log(self,"Trying controls.cfg in profile at: "+ tryfile)
if os.path.exists(tryfile):
filename = tryfile
else:
# try inside pp_home
# self.mon.log(self,"controls.cfg not found at "+ tryfile+ " trying pp_home")
tryfile = pp_home + os.sep + "controls.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
# try inside pipresents
# self.mon.log(self,"controls.cfg not found at "+ tryfile + " trying inside pipresents")
tryfile = pp_dir + os.sep + 'pp_home' + os.sep + "controls.cfg"
if os.path.exists(tryfile):
filename = tryfile
else:
self.mon.log(self,
"controls.cfg not found at " + tryfile)
self.mon.err(self, "controls.cfg not found")
return False
ControlsManager.config = ConfigParser.ConfigParser()
ControlsManager.config.read(filename)
self.mon.log(self, "controls.cfg read from " + filename)
return True
def parse_defaults(self):
if ControlsManager.config.has_section('controls'):
ControlsManager.global_controls = ControlsManager.config.items(
'controls')
# print 'global controls ',ControlsManager.global_controls
return True
else:
return False
# get the default controls for the show that has been read in by read from controls.cfg
def default_controls(self):
control_defs = ControlsManager.global_controls
controls_list = []
for control_def in control_defs:
op = control_def[1]
default_name = control_def[0]
controls_list.append([default_name, op])
return controls_list
# Merge in controls from a show.
# the set of default controls for all shows can be overridden in a top level show
# by the controls defined in the show
# if show has an operation other than 'null' change the symbolic name to that inthe show
# if the show has a null operation change the operation of the attached symbolic name to null
def merge_show_controls(self, controls_list, show_text):
# print 'show text: ',show_text
reason, message, show_controls = self.parse_controls(show_text)
# print 'show controls:',show_controls
# overwrite the default symbolic_name if re-defined in the show
for show_control in show_controls:
show_name = show_control[0]
show_operation = show_control[1]
# find the operation in the controls list and change its name
# print 'op to change name of: ',show_operation
# print 'change to ',show_name
for control in controls_list:
if control[1] == show_operation:
control[0] = show_name
# print 'after rename ',controls_list
# add additional operations if defined in the show
for show_control in show_controls:
show_name = show_control[0]
show_operation = show_control[1]
# is operation in the controls list
# print 'op to add: ',show_operation
# print 'name to add ',show_name
found = False
for control in controls_list:
if control[1] == show_operation:
found = True
# if the operation has not been found and it is omx- or mplay- then add it.
if found == False and (show_operation[0:4] == 'omx-'
or show_operation[0:6] == 'mplay-'):
# print 'appending ', show_name,show_operation
controls_list.append([show_name, show_operation])
# step through controls list dealing with null
new_controls = []
# find the name in controls list and delete it?
for control in controls_list:
name = control[0]
operation = control[1]
found = False
for show_control in show_controls:
show_name = show_control[0]
show_operation = show_control[1]
if show_name == name and show_operation == 'null':
found = True
break
if found == False:
new_controls.append(control)
# print 'preserved ',control
# print 'merged controls',new_controls
return new_controls
# parse controls from controls field in a show
def parse_controls(self, controls_text):
controls = []
lines = controls_text.split('\n')
num_lines = 0
for line in lines:
if line.strip() == "":
continue
num_lines += 1
error_text, control = self.parse_control(line.strip())
if error_text <> "":
return 'error', error_text, controls
controls.append(copy.deepcopy(control))
return 'normal', '', controls
def parse_control(self, line):
fields = line.split()
if len(fields) <> 2:
return "incorrect number of fields in control", ['', '']
symbol = fields[0]
operation = fields[1]
if operation in (
'stop', 'play', 'up', 'down', 'pause', 'null'
) or operation[0:4] == 'omx-' or operation[0:6] == 'mplay-':
return '', [symbol, operation]
else:
return "unknown operation", ['', '']
class PiPresents:
def __init__(self):
self.pipresents_issue = "1.2"
self.pipresents_minorissue = '1.2.3f'
self.nonfull_window_width = 0.5 # proportion of width
self.nonfull_window_height = 0.6 # proportion of height
self.nonfull_window_x = 0 # position of top left corner
self.nonfull_window_y = 0 # position of top left corner
StopWatch.global_enable = False
#****************************************
# Initialisation
# ***************************************
# get command line options
self.options = command_options()
# get pi presents code directory
pp_dir = sys.path[0]
self.pp_dir = pp_dir
if not os.path.exists(pp_dir + "/pipresents.py"):
tkMessageBox.showwarning("Pi Presents",
"Bad Application Directory")
exit()
#Initialise logging
Monitor.log_path = pp_dir
self.mon = Monitor()
self.mon.on()
# 0 - errors only
# 1 - errors and warnings
# 2 - everything
if self.options['debug'] == True:
Monitor.global_enable = 2
else:
Monitor.global_enable = 0
# UNCOMMENT THIS TO LOG WARNINGS AND ERRORS ONLY
# Monitor.global_enable=1
self.mon.log(
self,
"\n\n\n\n\n*****************\nPi Presents is starting, Version:" +
self.pipresents_minorissue)
self.mon.log(self, "Version: " + self.pipresents_minorissue)
self.mon.log(self, " OS and separator:" + os.name + ' ' + os.sep)
self.mon.log(self, "sys.path[0] - location of code: " + sys.path[0])
# self.mon.log(self,"os.getenv('HOME') - user home directory (not used): " + os.getenv('HOME'))
# self.mon.log(self,"os.path.expanduser('~') - user home directory: " + os.path.expanduser('~'))
# optional other classes used
self.ppio = None
self.tod = None
#get profile path from -p option
if self.options['profile'] <> "":
self.pp_profile_path = "/pp_profiles/" + self.options['profile']
else:
self.pp_profile_path = "/pp_profiles/pp_profile"
#get directory containing pp_home from the command,
if self.options['home'] == "":
home = os.path.expanduser('~') + os.sep + "pp_home"
else:
home = self.options['home'] + os.sep + "pp_home"
self.mon.log(self, "pp_home directory is: " + home)
#check if pp_home exists.
# try for 10 seconds to allow usb stick to automount
# fall back to pipresents/pp_home
self.pp_home = pp_dir + "/pp_home"
found = False
for i in range(1, 10):
self.mon.log(self,
"Trying pp_home at: " + home + " (" + str(i) + ')')
if os.path.exists(home):
found = True
self.pp_home = home
break
time.sleep(1)
if found == True:
self.mon.log(
self,
"Found Requested Home Directory, using pp_home at: " + home)
else:
self.mon.log(
self,
"FAILED to find requested home directory, using default to display error message: "
+ self.pp_home)
#check profile exists, if not default to error profile inside pipresents
self.pp_profile = self.pp_home + self.pp_profile_path
if os.path.exists(self.pp_profile):
self.mon.log(
self, "Found Requested profile - pp_profile directory is: " +
self.pp_profile)
else:
self.pp_profile = pp_dir + "/pp_home/pp_profiles/pp_profile"
self.mon.log(
self,
"FAILED to find requested profile, using default to display error message: pp_profile"
)
if self.options['verify'] == True:
val = Validator()
if val.validate_profile(None, pp_dir, self.pp_home,
self.pp_profile, self.pipresents_issue,
False) == False:
tkMessageBox.showwarning("Pi Presents", "Validation Failed")
exit()
# open the resources
self.rr = ResourceReader()
# read the file, done once for all the other classes to use.
if self.rr.read(pp_dir, self.pp_home, self.pp_profile) == False:
self.end('error', 'cannot find resources.cfg')
#initialise and read the showlist in the profile
self.showlist = ShowList()
self.showlist_file = self.pp_profile + "/pp_showlist.json"
if os.path.exists(self.showlist_file):
self.showlist.open_json(self.showlist_file)
else:
self.mon.err(self, "showlist not found at " + self.showlist_file)
self.end('error', 'showlist not found')
# check profile and Pi Presents issues are compatible
if float(self.showlist.sissue()) <> float(self.pipresents_issue):
self.mon.err(
self, "Version of profile " + self.showlist.sissue() +
" is not same as Pi Presents, must exit")
self.end('error', 'wrong version of profile')
# get the 'start' show from the showlist
index = self.showlist.index_of_show('start')
if index >= 0:
self.showlist.select(index)
self.starter_show = self.showlist.selected_show()
else:
self.mon.err(self, "Show [start] not found in showlist")
self.end('error', 'start show not found')
# ********************
# SET UP THE GUI
# ********************
#turn off the screenblanking and saver
if self.options['noblank'] == True:
call(["xset", "s", "off"])
call(["xset", "s", "-dpms"])
self.root = Tk()
self.title = 'Pi Presents - ' + self.pp_profile
self.icon_text = 'Pi Presents'
self.root.title(self.title)
self.root.iconname(self.icon_text)
self.root.config(bg='black')
# get size of the screen
self.screen_width = self.root.winfo_screenwidth()
self.screen_height = self.root.winfo_screenheight()
# set window dimensions and decorations
if self.options['fullscreen'] == True:
self.root.attributes('-fullscreen', True)
os.system('unclutter &')
self.window_width = self.screen_width
self.window_height = self.screen_height
self.window_x = 0
self.window_y = 0
self.root.geometry("%dx%d%+d%+d" %
(self.window_width, self.window_height,
self.window_x, self.window_y))
self.root.attributes('-zoomed', '1')
else:
self.window_width = int(self.screen_width *
self.nonfull_window_width)
self.window_height = int(self.screen_height *
self.nonfull_window_height)
self.window_x = self.nonfull_window_x
self.window_y = self.nonfull_window_y
self.root.geometry("%dx%d%+d%+d" %
(self.window_width, self.window_height,
self.window_x, self.window_y))
#canvas covers the whole window
self.canvas_height = self.screen_height
self.canvas_width = self.screen_width
# make sure focus is set.
self.root.focus_set()
#define response to main window closing.
self.root.protocol("WM_DELETE_WINDOW", self.exit_pressed)
#setup a canvas onto which will be drawn the images or text
self.canvas = Canvas(self.root, bg='black')
self.canvas.config(height=self.canvas_height,
width=self.canvas_width,
highlightthickness=0)
# self.canvas.pack()
self.canvas.place(x=0, y=0)
self.canvas.focus_set()
# ****************************************
# INITIALISE THE INPUT DRIVERS
# ****************************************
# looks after bindings between symbolic names and internal operations
controlsmanager = ControlsManager()
if controlsmanager.read(pp_dir, self.pp_home,
self.pp_profile) == False:
self.end('error', 'cannot find or error in controls.cfg.cfg')
else:
controlsmanager.parse_defaults()
# each driver takes a set of inputs, binds them to symboic names
# and sets up a callback which returns the symbolic name when an input event occurs/
# use keyboard driver to bind keys to symbolic names and to set up callback
kbd = KbdDriver()
if kbd.read(pp_dir, self.pp_home, self.pp_profile) == False:
self.end('error', 'cannot find or error in keys.cfg')
kbd.bind_keys(self.root, self.input_pressed)
self.sr = ScreenDriver()
# read the screen click area config file
if self.sr.read(pp_dir, self.pp_home, self.pp_profile) == False:
self.end('error', 'cannot find screen.cfg')
# create click areas on the canvas, must be polygon as outline rectangles are not filled as far as find_closest goes
reason, message = self.sr.make_click_areas(self.canvas,
self.input_pressed)
if reason == 'error':
self.mon.err(self, message)
self.end('error', message)
# ****************************************
# INITIALISE THE APPLICATION AND START
# ****************************************
self.shutdown_required = False
#kick off GPIO if enabled by command line option
if self.options['gpio'] == True:
from pp_gpio import PPIO
# initialise the GPIO
self.ppio = PPIO()
# PPIO.gpio_enabled=False
if self.ppio.init(pp_dir, self.pp_home, self.pp_profile,
self.canvas, 50, self.gpio_pressed) == False:
self.end('error', 'gpio error')
# and start polling gpio
self.ppio.poll()
#kick off the time of day scheduler
self.tod = TimeOfDay()
self.tod.init(pp_dir, self.pp_home, self.canvas, 500)
self.tod.poll()
# Create list of start shows initialise them and then run them
self.run_start_shows()
#start tkinter
self.root.mainloop()
# *********************
# RUN START SHOWS
# ********************
def run_start_shows(self):
#start show manager
show_id = -1 #start show
self.show_manager = ShowManager(show_id, self.showlist,
self.starter_show, self.root,
self.canvas, self.pp_dir,
self.pp_profile, self.pp_home)
#first time through so empty show register and set callback to terminate Pi Presents if all shows have ended.
self.show_manager.init(self.all_shows_ended_callback)
#parse the start shows field and start the initial shows
start_shows_text = self.starter_show['start-show']
self.show_manager.start_initial_shows(start_shows_text)
#callback from ShowManager when all shows have ended
def all_shows_ended_callback(self, reason, message, force_shutdown):
self.mon.log(self, "All shows ended, so terminate Pi Presents")
if force_shutdown == True:
self.shutdown_required = True
self.mon.log(self, "shutdown forced by profile")
self.terminate('killed')
else:
self.end(reason, message)
# *********************
# User inputs
# ********************
#gpio callback - symbol provided by gpio
def gpio_pressed(self, index, symbol, edge):
self.mon.log(self, "GPIO Pressed: " + symbol)
self.input_pressed(symbol, edge, 'gpio')
# all input events call this callback with a symbolic name.
def input_pressed(self, symbol, edge, source):
self.mon.log(self, "input received: " + symbol)
if symbol == 'pp-exit':
self.exit_pressed()
elif symbol == 'pp-shutdown':
self.shutdown_pressed('delay')
elif symbol == 'pp-shutdownnow':
self.shutdown_pressed('now')
else:
for show in self.show_manager.shows:
show_obj = show[ShowManager.SHOW_OBJ]
if show_obj <> None:
show_obj.input_pressed(symbol, edge, source)
# **************************************
# respond to exit inputs by terminating
# **************************************
def shutdown_pressed(self, when):
if when == 'delay':
self.root.after(5000, self.on_shutdown_delay)
else:
self.shutdown_required = True
self.exit_pressed()
def on_shutdown_delay(self):
if self.ppio.shutdown_pressed():
self.shutdown_required = True
self.exit_pressed()
def exit_pressed(self):
self.mon.log(self, "kill received from user")
#terminate any running shows and players
self.mon.log(self, "kill sent to shows")
self.terminate('killed')
# kill or error
def terminate(self, reason):
needs_termination = False
for show in self.show_manager.shows:
if show[ShowManager.SHOW_OBJ] <> None:
needs_termination = True
self.mon.log(
self,
"Sent terminate to show " + show[ShowManager.SHOW_REF])
show[ShowManager.SHOW_OBJ].terminate(reason)
if needs_termination == False:
self.end(reason,
'terminate - no termination of lower levels required')
# ******************************
# Ending Pi Presents after all the showers and players are closed
# **************************
def end(self, reason, message):
self.mon.log(
self, "Pi Presents ending with message: " + reason + ' ' + message)
if reason == 'error':
self.tidy_up()
self.mon.log(self, "exiting because of error")
#close logging files
self.mon.finish()
exit()
else:
self.tidy_up()
self.mon.log(self, "no error - exiting normally")
#close logging files
self.mon.finish()
if self.shutdown_required == True:
# call(['sudo', 'shutdown', '-h', '-t 5','now'])
call(['sudo', 'shutdown', '-h', 'now'])
exit()
else:
exit()
# tidy up all the peripheral bits of Pi Presents
def tidy_up(self):
#turn screen blanking back on
if self.options['noblank'] == True:
call(["xset", "s", "on"])
call(["xset", "s", "+dpms"])
# tidy up gpio
if self.options['gpio'] == True and self.ppio <> None:
self.ppio.terminate()
#tidy up time of day scheduler
if self.tod <> None:
self.tod.terminate()
# *****************************
# utilitities
# ****************************
def resource(self, section, item):
value = self.rr.get(section, item)
if value == False:
self.mon.err(self,
"resource: " + section + ': ' + item + " not found")
self.terminate("error")
else:
return value
class MediaShow:
# *******************
# External interface
# ********************
def __init__(self, show, canvas, showlist, pp_home, pp_profile):
""" canvas - the canvas that the menu is to be written on
show - the dictionary fo the show to be played
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon = Monitor()
self.mon.on()
#instantiate arguments
self.show = show
self.showlist = showlist
self.canvas = canvas
self.pp_home = pp_home
self.pp_profile = pp_profile
# open resources
self.rr = ResourceReader()
# Init variables
self.player = None
self.shower = None
self._poll_for_interval_timer = None
self._poll_for_continue_timer = None
self._waiting_for_interval = False
self._interval_timer = None
self.error = False
self._interval_timer_signal = False
self._end_mediashow_signal = False
self._next_track_signal = False
self._previous_track_signal = False
self._play_child_signal = False
self._req_next = 'nil'
self._state = 'closed'
def play(self,
end_callback,
ready_callback=None,
top=False,
command='nil'):
""" displays the mediashow
end_callback - function to be called when the menu exits
ready_callback - callback when menu is ready to display (not used)
top is True when the show is top level (run from [start])
"""
#instantiate the arguments
self._end_callback = end_callback
self._ready_callback = ready_callback
self.top = top
self.command = command
self.mon.log(self, "Starting show: " + self.show['show-ref'])
# check data files are available.
self.media_file = self.pp_profile + "/" + self.show['medialist']
if not os.path.exists(self.media_file):
self.mon.err(self, "Medialist file not found: " + self.media_file)
self._end('error', "Medialist file not found")
#create a medialist for the mediashow and read it.
self.medialist = MediaList()
if self.medialist.open_list(self.media_file,
self.showlist.sissue()) == False:
self.mon.err(self, "Version of medialist different to Pi Presents")
self._end('error', "Version of medialist different to Pi Presents")
self._wait_for_trigger()
# respond to key presses.
def key_pressed(self, key_name):
self.mon.log(self, "received key: " + key_name)
if key_name == '':
pass
elif key_name == 'escape':
# if next lower show is running pass down to stop the show and lower level
if self.shower <> None:
self.shower.key_pressed(key_name)
# if not at top stop the show
else:
if self.top == False:
self._end_mediashow_signal = True
# and if a track is running stop that first
if self.player <> None:
self.player.key_pressed(key_name)
else:
# at top level in a manual presentation stop the track
if self.show['progress'] == 'manual':
if self.player <> None:
self.player.key_pressed(key_name)
elif key_name in ('up', 'down'):
# if child or sub-show is running and is a show pass to show, track does not use up/down
# otherwise use keys for next or previous
if self.shower <> None:
self.shower.key_pressed(key_name)
else:
if key_name == 'up':
self._previous()
else:
self._next()
elif key_name == 'return':
# if child show or sub-show is running and is show - pass down- player does not use return
# ELSE use Return to start child or to start the show if waiting
if self.shower <> None:
self.shower.key_pressed(key_name)
else:
if self._state == 'playing':
if self.show['has-child'] == 'yes':
self._play_child_signal = True
# and stop the current track if its running
if self.player <> None:
self.player.key_pressed("escape")
else:
self._start_show()
elif key_name == 'pir':
self._start_show()
elif key_name in ('p', ' '):
# pass down if show or track running.
if self.shower <> None:
self.shower.key_pressed(key_name)
elif self.player <> None:
self.player.key_pressed(key_name)
def button_pressed(self, button, edge):
if button == 'play': self.key_pressed("return")
elif button == 'up': self.key_pressed("up")
elif button == 'down': self.key_pressed("down")
elif button == 'stop': self.key_pressed("escape")
elif button == 'pause': self.key_pressed('p')
elif button == 'PIR': self.key_pressed('pir')
# kill or error
def terminate(self, reason):
if self.shower <> None:
self.mon.log(self, "sent terminate to shower")
self.shower.terminate(reason)
elif self.player <> None:
self.mon.log(self, "sent terminate to player")
self.player.terminate(reason)
else:
self._end(reason,
'terminated without terminating shower or player')
def _tidy_up(self):
if self._poll_for_continue_timer <> None:
self.canvas.after_cancel(self._poll_for_continue_timer)
self._poll_for_continue_timer = None
if self._poll_for_interval_timer <> None:
self.canvas.after_cancel(self._poll_for_interval_timer)
self._poll_for_interval_timer = None
if self._interval_timer <> None:
self.canvas.after_cancel(self._interval_timer)
self._interval_timer = None
def resource(self, section, item):
value = self.rr.get(section, item)
if value == False:
self.mon.err(self,
"resource: " + section + ': ' + item + " not found")
self.terminate("error")
else:
return value
# ***************************
# Respond to key/button presses
# ***************************
def _stop(self, message):
self._end_mediashow_signal = True
if self._interval_timer <> None:
self.canvas.after_cancel(self._interval_timer)
def _next(self):
# stop track if running and set signal
self._next_track_signal = True
if self.shower <> None:
self.shower.key_pressed("escape")
else:
if self.player <> None:
self.player.key_pressed("escape")
def _previous(self):
self._previous_track_signal = True
if self.shower <> None:
self.shower.key_pressed("escape")
else:
if self.player <> None:
self.player.key_pressed("escape")
# ***************************
# end of show functions
# ***************************
def _end(self, reason, message):
self._end_mediashow_signal = False
self.mon.log(self, "Ending Mediashow: " + self.show['show-ref'])
self._tidy_up()
self._end_callback(reason, message)
self = None
return
# ***************************
# Show sequencer
# ***************************
def _wait_for_trigger(self):
self._state = 'waiting'
if self.ready_callback <> None:
self.ready_callback()
self.mon.log(self, "Waiting for trigger: " + self.show['trigger'])
if self.show['trigger'] == "button":
# blank screen waiting for trigger if auto, otherwise display something
if self.show['progress'] == "manual":
text = self.resource('mediashow', 'm01')
else:
text = ""
self.display_message(self.canvas, 'text', text, 0,
self._start_show)
elif self.show['trigger'] == "PIR":
# blank screen waiting for trigger
text = self.resource('mediashow', 'm02')
self.display_message(self.canvas, 'text', text, 0,
self._start_show)
elif self.show['trigger'] == "start":
self._start_show()
else:
self.mon.err(self, "Unknown trigger: " + self.show['trigger'])
self._end('error', "Unknown trigger type")
def _start_show(self):
self._state = 'playing'
self._direction = 'forward'
# start interval timer
if self.show[
'repeat'] == "interval" and self.show['repeat-interval'] <> 0:
self._interval_timer_signal = False
self._interval_timer = self.canvas.after(
int(self.show['repeat-interval']) * 1000,
self._end_interval_timer)
# and play the first track unless commanded otherwise
if self.command == 'backward':
self.medialist.finish()
else:
self.medialist.start()
self._play_selected_track(self.medialist.selected_track())
def _what_next(self):
self._direction = 'forward'
# user wants to end, wait for any shows or tracks to have ended then end show
if self._end_mediashow_signal == True:
if self.player == None and self.shower == None:
self._end_mediashow_signal = False
self._end('normal', "show ended by user")
else:
pass
#returning from a subshow needing to move onward
elif self._req_next == 'do-next':
self._req_next = 'nil'
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
#returning from a subshow needing to move backward
elif self._req_next == 'do-previous':
self._req_next = 'nil'
self._direction = 'backward'
self.medialist.previous()
self._play_selected_track(self.medialist.selected_track())
# user wants to play child
elif self._play_child_signal == True:
self._play_child_signal = False
index = self.medialist.index_of_track('pp-child-show')
if index >= 0:
#don't select the track as need to preserve mediashow sequence.
child_track = self.medialist.track(index)
self._display_eggtimer(self.resource('mediashow', 'm07'))
self._play_selected_track(child_track)
else:
self.mon.err(
self, "Child show not found in medialist: " +
self.show['pp-child-show'])
self._end('error', "child show not found in medialist")
# skip to next track on user input
elif self._next_track_signal == True:
self._next_track_signal = False
if self.medialist.at_end() == True:
if self.show['sequence'] == "ordered" and self.show[
'repeat'] == 'oneshot' and self.top == False:
self._end('do-next', "Return from Sub Show")
else:
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
else:
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
# skip to previous track on user input
elif self._previous_track_signal == True:
self._previous_track_signal = False
self._direction = 'backward'
if self.medialist.at_start() == True:
if self.show['sequence'] == "ordered" and self.show[
'repeat'] == 'oneshot' and self.top == False:
self._end('do-previous', "Return from Sub Show")
else:
self.medialist.previous()
self._play_selected_track(self.medialist.selected_track())
else:
self.medialist.previous()
self._play_selected_track(self.medialist.selected_track())
# track is finished and we are on auto
elif self.show['progress'] == "auto":
if self.medialist.at_end() == True:
if self.show['sequence'] == "ordered" and self.show[
'repeat'] == 'oneshot' and self.top == False:
self._end('do-next', "Return from Sub Show")
#### elif
elif self.show['sequence'] == "ordered" and self.show[
'repeat'] == 'oneshot' and self.top == True:
self._wait_for_trigger()
elif self._waiting_for_interval == True:
if self._interval_timer_signal == True:
self._interval_timer_signal = False
self._waiting_for_interval = False
self._start_show()
else:
self._poll_for_interval_timer = self.canvas.after(
1000, self._what_next)
elif self.show['sequence'] == "ordered" and self.show[
'repeat'] == 'interval' and int(
self.show['repeat-interval']) > 0:
self._waiting_for_interval = True
self._poll_for_interval_timer = self.canvas.after(
1000, self._what_next)
elif self.show['sequence'] == "ordered" and self.show[
'repeat'] == 'interval' and int(
self.show['repeat-interval']) == 0:
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
else:
self.mon.err(self, "Unhandled playing event: ")
self._end('error', "Unhandled playing event")
else:
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
# track has finished and we are on manual progress
elif self.show['progress'] == "manual":
self._delete_eggtimer()
self._display_eggtimer(self.resource('mediashow', 'm03'))
self._poll_for_continue_timer = self.canvas.after(
500, self._what_next)
else:
#unhandled state
self.mon.err(self, "Unhandled playing event: ")
self._end('error', "Unhandled playing event")
def _end_interval_timer(self):
self._interval_timer_signal = True
# ***************************
# Dispatching to Players/Shows
# ***************************
# used to display internal messages in situations where a medialist entry could be used.
def display_message(self, canvas, source, content, duration,
_display_message_callback):
self._display_message_callback = _display_message_callback
tp = {
'duration': duration,
'message-colour': 'white',
'message-font': 'Helvetica 20 bold'
}
self.player = MessagePlayer(canvas, tp, tp)
self.player.play(content, self._display_message_end, None)
def _display_message_end(self, reason, message):
self.player = None
if reason in ('error', 'killed'):
self._end(reason, message)
else:
self._display_message_callback()
def complete_path(self, selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file[0] == "+":
track_file = self.pp_home + track_file[1:]
self.mon.log(self, "Track to play is: " + track_file)
return track_file
def _play_selected_track(self, selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
self.canvas.delete(ALL)
if self.show['progress'] == "manual":
self._display_eggtimer(self.resource('mediashow', 'm04'))
# is menu required
if self.show['has-child'] == "yes":
enable_child = True
else:
enable_child = False
#dispatch track by type
self.player = None
self.shower = None
track_type = selected_track['type']
self.mon.log(self, "Track type is: " + track_type)
if track_type == "video":
# create a videoplayer
track_file = self.complete_path(selected_track)
self.player = VideoPlayer(self.canvas, self.show, selected_track)
self.player.play(track_file,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "image":
track_file = self.complete_path(selected_track)
# images played from menus don't have children
self.player = ImagePlayer(self.canvas, self.show, selected_track)
self.player.play(track_file,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "message":
# bit odd because MessagePlayer is used internally to display text.
text = selected_track['text']
self.player = MessagePlayer(self.canvas, self.show, selected_track)
self.player.play(text,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type == "show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >= 0:
self.showlist.select(index)
selected_show = self.showlist.selected_show()
else:
self.mon.err(
self, "Show not found in showlist: " +
selected_track['sub-show'])
self._end('error', "Unknown show")
if selected_show['type'] == "mediashow":
self.shower = MediaShow(selected_show, self.canvas,
self.showlist, self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower,
top=False,
command=self._direction)
elif selected_show['type'] == "liveshow":
self.shower = LiveShow(selected_show, self.canvas,
self.showlist, self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower, top=False, command='nil')
elif selected_show['type'] == "menu":
self.shower = MenuShow(selected_show, self.canvas,
self.showlist, self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower, top=False, command='nil')
else:
self.mon.err(self,
"Unknown Show Type: " + selected_show['type'])
self._end('error' "Unknown show type")
else:
self.mon.err(self, "Unknown Track Type: " + track_type)
self._end('error', "Unknown track type")
def ready_callback(self):
self._delete_eggtimer()
def end_player(self, reason, message):
self._req_next = 'nil'
self.mon.log(self, "Returned from player with message: " + message)
self.player = None
if reason in ("killed", "error"):
self._end(reason, message)
elif self.show['progress'] == "manual":
self._display_eggtimer(self.resource('mediashow', 'm05'))
self._req_next = reason
self._what_next()
else:
self._req_next = reason
self._what_next()
def end_shower(self, reason, message):
self._req_next = 'nil'
self.mon.log(self, "Returned from shower with message: " + message)
self.shower = None
if reason in ("killed", "error"):
self._end(reason, message)
elif self.show['progress'] == "manual":
self._display_eggtimer(self.resource('mediashow', 'm06'))
self._req_next = reason
self._what_next()
else:
self._req_next = reason
self._what_next()
def _display_eggtimer(self, text):
self.canvas.create_text(int(self.canvas['width']) / 2,
int(self.canvas['height']) / 2,
text=text,
fill='white',
font="Helvetica 20 bold")
self.canvas.update_idletasks()
def _delete_eggtimer(self):
self.canvas.delete(ALL)
class VideoPlayer:
""" plays a track using omxplayer
See pp_imageplayer for common software design description
"""
_CLOSED = "omx_closed" #probably will not exist
_STARTING = "omx_starting" #track is being prepared
_PLAYING = "omx_playing" #track is playing to the screen, may be paused
_ENDING = "omx_ending" #track is in the process of ending due to quit or end of track
# ***************************************
# EXTERNAL COMMANDS
# ***************************************
def __init__(self,
show_id,
root,
canvas,
show_params,
track_params ,
pp_dir,
pp_home,
pp_profile):
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show_id=show_id
self.root=root
self.canvas = canvas
self.show_params=show_params
self.track_params=track_params
self.pp_dir=pp_dir
self.pp_home=pp_home
self.pp_profile=pp_profile
# get config from medialist if there.
if self.track_params['omx-audio']<>"":
self.omx_audio= self.track_params['omx-audio']
else:
self.omx_audio= self.show_params['omx-audio']
if self.omx_audio<>"": self.omx_audio= "-o "+ self.omx_audio
if self.track_params['omx-volume']<>"":
self.omx_volume= self.track_params['omx-volume']
else:
self.omx_volume= self.show_params['omx-volume']
if self.omx_volume<>"":
self.omx_volume= "--vol "+ str(int(self.omx_volume)*100) + ' '
if self.track_params['omx-window']<>'':
self.omx_window= self.track_params['omx-window']
else:
self.omx_window= self.show_params['omx-window']
# get background image from profile.
self.background_file=''
if self.track_params['background-image']<>"":
self.background_file= self.track_params['background-image']
else:
if self.track_params['display-show-background']=='yes':
self.background_file= self.show_params['background-image']
# get background colour from profile.
if self.track_params['background-colour']<>"":
self.background_colour= self.track_params['background-colour']
else:
self.background_colour= self.show_params['background-colour']
self.centre_x = int(self.canvas['width'])/2
self.centre_y = int(self.canvas['height'])/2
#get animation instructions from profile
self.animate_begin_text=self.track_params['animate-begin']
self.animate_end_text=self.track_params['animate-end']
# open the plugin Manager
self.pim=PluginManager(self.show_id,self.root,self.canvas,self.show_params,self.track_params,self.pp_dir,self.pp_home,self.pp_profile)
#create an instance of PPIO so we can create gpio events
self.ppio = PPIO()
# could put instance generation in play, not sure which is better.
self.omx=OMXDriver(self.canvas)
self.tick_timer=None
self.init_play_state_machine()
def play(self, track,
showlist,
end_callback,
ready_callback,
enable_menu=False):
#instantiate arguments
self.track=track
self.showlist=showlist
self.ready_callback=ready_callback #callback when ready to play
self.end_callback=end_callback # callback when finished
self.enable_menu = enable_menu
# callback to the calling object to e.g remove egg timer and enable click areas.
if self.ready_callback<>None:
self.ready_callback()
# create an instance of showmanager so we can control concurrent shows
self.show_manager=ShowManager(self.show_id,self.showlist,self.show_params,self.root,self.canvas,self.pp_dir,self.pp_profile,self.pp_home)
#set up video window
reason,message,comand,has_window,x1,y1,x2,y2= self.parse_window(self.omx_window)
if reason =='error':
self.mon.err(self,'omx window error: ' + message + ' in ' + self.omx_window)
self.end_callback(reason,message)
else:
if has_window==True:
self.omx_window= '--win " '+ str(x1) + ' ' + str(y1) + ' ' + str(x2) + ' ' + str(y2) + ' " '
else:
self.omx_window=''
# Control other shows at beginning
reason,message=self.show_manager.show_control(self.track_params['show-control-begin'])
if reason in ('error','killed'):
self.end_callback(reason,message)
self=None
else:
#display content
reason,message=self.display_content()
if reason == 'error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# create animation events
reason,message=self.ppio.animate(self.animate_begin_text,id(self))
if reason=='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# start playing the video.
if self.play_state == VideoPlayer._CLOSED:
self.mon.log(self,">play track received")
self.start_play_state_machine(self.track)
else:
self.mon.err(self,'play track rejected')
self.end_callback('error','play track rejected')
self=None
def terminate(self,reason):
# circumvents state machine and does not wait for omxplayer to close
if self.omx<>None:
self.mon.log(self,"sent terminate to omxdriver")
self.omx.terminate(reason)
self.end('killed',' end without waiting for omxplayer to finish') # end without waiting
else:
self.mon.log(self,"terminate, omxdriver not running")
self.end('killed','terminate, mplayerdriver not running')
def input_pressed(self,symbol):
if symbol[0:4]=='omx-':
self.control(symbol[4])
elif symbol =='pause':
self.pause()
elif symbol=='stop':
self.stop()
else:
pass
def get_links(self):
return self.track_params['links']
# ***************************************
# INTERNAL FUNCTIONS
# ***************************************
# respond to normal stop
def stop(self):
# send signal to stop the track to the state machine
self.mon.log(self,">stop received")
self.quit_signal=True
#toggle pause
def pause(self):
if self.play_state in (VideoPlayer._PLAYING,VideoPlayer._ENDING):
self.omx.pause()
return True
else:
self.mon.log(self,"!<pause rejected")
return False
# other control when playing
def control(self,char):
if self.play_state==VideoPlayer._PLAYING and char not in ('q'):
self.mon.log(self,"> send control to omx: "+ char)
self.omx.control(char)
return True
else:
self.mon.log(self,"!<control rejected")
return False
# ***********************
# sequencing
# **********************
"""self. play_state controls the playing sequence, it has the following values.
I am not entirely sure the starting and ending states are required.
- _closed - the omx process is not running, omx process can be initiated
- _starting - omx process is running but is not yet able to receive controls
- _playing - playing a track, controls can be sent
- _ending - omx is doing its termination, controls cannot be sent
"""
def init_play_state_machine(self):
self.quit_signal=False
self.play_state=VideoPlayer._CLOSED
def start_play_state_machine(self,track):
#initialise all the state machine variables
#self.iteration = 0 # for debugging
self.quit_signal=False # signal that user has pressed stop
self.play_state=VideoPlayer._STARTING
#play the selected track
options=self.omx_audio+ " " + self.omx_volume + ' ' + self.omx_window + ' ' + self.show_params['omx-other-options']+" "
self.omx.play(track,options)
self.mon.log (self,'Playing track from show Id: '+ str(self.show_id))
# and start polling for state changes
self.tick_timer=self.canvas.after(50, self.play_state_machine)
def play_state_machine(self):
if self.play_state == VideoPlayer._CLOSED:
self.mon.log(self," State machine: " + self.play_state)
return
elif self.play_state == VideoPlayer._STARTING:
self.mon.log(self," State machine: " + self.play_state)
# if omxplayer is playing the track change to play state
if self.omx.start_play_signal==True:
self.mon.log(self," <start play signal received from omx")
self.omx.start_play_signal=False
self.play_state=VideoPlayer._PLAYING
self.mon.log(self," State machine: omx_playing started")
self.tick_timer=self.canvas.after(50, self.play_state_machine)
elif self.play_state == VideoPlayer._PLAYING:
# self.mon.log(self," State machine: " + self.play_state)
# service any queued stop signals
if self.quit_signal==True:
self.mon.log(self," Service stop required signal")
self.stop_omx()
self.quit_signal=False
# self.play_state = VideoPlayer._ENDING
# omxplayer reports it is terminating so change to ending state
if self.omx.end_play_signal:
self.mon.log(self," <end play signal received")
self.mon.log(self," <end detected at: " + str(self.omx.video_position))
if self.omx.end_play_reason<>'nice_day':
# deal with omxplayer not sending 'have a nice day'
self.mon.warn(self," <end detected at: " + str(self.omx.video_position))
self.mon.warn(self," <pexpect reports: "+self.omx.end_play_reason)
self.mon.warn(self,'pexpect.before is'+self.omx.xbefore)
self.play_state = VideoPlayer._ENDING
self.ending_count=0
self.tick_timer=self.canvas.after(200, self.play_state_machine)
elif self.play_state == VideoPlayer._ENDING:
self.mon.log(self," State machine: " + self.play_state)
# if spawned process has closed can change to closed state
self.mon.log (self," State machine : is omx process running? - " + str(self.omx.is_running()))
if self.omx.is_running() ==False:
self.mon.log(self," <omx process is dead")
self.play_state = VideoPlayer._CLOSED
self.end('normal','quit by user or system')
else:
self.ending_count+=1
if self.ending_count>10:
# deal with omxplayer not terminating at the end of a track
self.mon.warn(self," <omxplayer failed to close at: " + str(self.omx.video_position))
self.mon.warn(self,'pexpect.before is'+self.omx.xbefore)
self.omx.kill()
self.mon.warn(self,'omxplayer now terminated ')
self.play_state = VideoPlayer._CLOSED
self.end('normal','end from omxplayer failed to terminate')
else:
self.tick_timer=self.canvas.after(200, self.play_state_machine)
def stop_omx(self):
# send signal to stop the track to the state machine
self.mon.log(self," >stop omx received from state machine")
if self.play_state==VideoPlayer._PLAYING:
self.omx.stop()
return True
else:
self.mon.log(self,"!<stop rejected")
return False
# *****************
# ending the player
# *****************
def end(self,reason,message):
# stop the plugin
if self.track_params['plugin']<>'':
self.pim.stop_plugin()
# os.system("xrefresh -display :0")
# abort the timer
if self.tick_timer<>None:
self.canvas.after_cancel(self.tick_timer)
self.tick_timer=None
if reason in ('error','killed'):
self.end_callback(reason,message)
self=None
else:
# normal end so do show control and animation
# Control concurrent shows at end
reason,message=self.show_manager.show_control(self.track_params['show-control-end'])
if reason =='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
# clear events list for this track
if self.track_params['animate-clear']=='yes':
self.ppio.clear_events_list(id(self))
# create animation events for ending
reason,message=self.ppio.animate(self.animate_begin_text,id(self))
if reason=='error':
self.mon.err(self,message)
self.end_callback(reason,message)
self=None
else:
self.end_callback('normal',"track has terminated or quit")
self=None
# *****************
# displaying things
# *****************
def display_content(self):
#background colour
if self.background_colour<>'':
self.canvas.config(bg=self.background_colour)
# delete previous content
self.canvas.delete('pp-content')
# background image
if self.background_file<>'':
self.background_img_file = self.complete_path(self.background_file)
if not os.path.exists(self.background_img_file):
self.mon.err(self,"Video background file not found: "+ self.background_img_file)
self.end('error',"Video background file not found")
else:
pil_background_img=PIL.Image.open(self.background_img_file)
self.background = PIL.ImageTk.PhotoImage(pil_background_img)
self.drawn = self.canvas.create_image(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
image=self.background,
anchor=CENTER,
tag='pp-content')
# execute the plugin if required
if self.track_params['plugin']<>'':
reason,message,self.track = self.pim.do_plugin(self.track,self.track_params['plugin'],)
if reason <> 'normal':
return reason,message
# display show text if enabled
if self.show_params['show-text']<> '' and self.track_params['display-show-text']=='yes':
self.canvas.create_text(int(self.show_params['show-text-x']),int(self.show_params['show-text-y']),
anchor=NW,
text=self.show_params['show-text'],
fill=self.show_params['show-text-colour'],
font=self.show_params['show-text-font'],
tag='pp-content')
# display track text if enabled
if self.track_params['track-text']<> '':
self.canvas.create_text(int(self.track_params['track-text-x']),int(self.track_params['track-text-y']),
anchor=NW,
text=self.track_params['track-text'],
fill=self.track_params['track-text-colour'],
font=self.track_params['track-text-font'],
tag='pp-content')
# display instructions if enabled
if self.enable_menu== True:
self.canvas.create_text(int(self.show_params['hint-x']),
int(self.show_params['hint-y']),
text=self.show_params['hint-text'],
fill=self.show_params['hint-colour'],
font=self.show_params['hint-font'],
anchor=NW,
tag='pp-content')
self.canvas.tag_raise('pp-click-area')
self.canvas.update_idletasks( )
return 'normal',''
# ****************
# utilities
# *****************
def complete_path(self,track_file):
# complete path of the filename of the selected entry
if track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Background image is "+ track_file)
return track_file
# original _
# warp _ or xy2
def parse_window(self,line):
fields = line.split()
# check there is a command field
if len(fields) < 1:
return 'error','no type field','',False,0,0,0,0
# deal with original which has 1
if fields[0]=='original':
if len(fields) <> 1:
return 'error','number of fields for original','',False,0,0,0,0
return 'normal','',fields[0],False,0,0,0,0
#deal with warp which has 1 or 5 arguments
# check basic syntax
if fields[0] <>'warp':
return 'error','not a valid type','',False,0,0,0,0
if len(fields) not in (1,5):
return 'error','wrong number of coordinates for warp','',False,0,0,0,0
# deal with window coordinates
if len(fields) == 5:
#window is specified
if not (fields[1].isdigit() and fields[2].isdigit() and fields[3].isdigit() and fields[4].isdigit()):
return 'error','coordinates are not positive integers','',False,0,0,0,0
has_window=True
return 'normal','',fields[0],has_window,int(fields[1]),int(fields[2]),int(fields[3]),int(fields[4])
else:
# fullscreen
has_window=True
return 'normal','',fields[0],has_window,0,0,self.canvas['width'],self.canvas['height']
class ShowManager:
# ShowManager manages PiPresents' concurrent shows. It does not manage sub-shows or child-shows.
# concurrent shows are always 'top level' shows:
# They can be started by the start show or by 'myshow start' in the Show Control field of players
# They can be stopped either by 'myshow stop' in the Show Control field in players
# or in the case of mediashows by making them single-run in its Repeat field
# a show with the same reference should not be run twice as there is no way to reference an individual instance when stopping
# ??? this could be changed as there is single-run to stop them, the stop command could stop all instances.
# Declare class variables
shows=[]
shutdown_required=False
SHOW_TEMPLATE=['',None]
SHOW_REF= 0 # show-reference - name of the show as in editor
SHOW_OBJ = 1 # the python object
def __init__(self,show_id,showlist,show_params,root,canvas,pp_dir,pp_profile,pp_home):
self.showlist=showlist
self.show_params=show_params
self.root=root
self.canvas=canvas
self.pp_dir=pp_dir
self.pp_profile=pp_profile
self.pp_home=pp_home
self.show_id=show_id
self.mon=Monitor()
self.mon.on()
# Initialise, first time through only in pipresents.py
def init(self,all_shows_ended_callback):
ShowManager.all_shows_ended_callback=all_shows_ended_callback
ShowManager.shows=[]
ShowManager.shutdown_required=False
# **************************************
# functions to manipulate show register
# **************************************
#adds a new concurrent show to the register if not already there, returns an index for use by start and stop
def register_show(self,ref):
registered=self.show_registered(ref)
if registered==-1:
ShowManager.shows.append(copy.deepcopy(ShowManager.SHOW_TEMPLATE))
index=len(ShowManager.shows)-1
ShowManager.shows[index][ShowManager.SHOW_REF]=ref
ShowManager.shows[index][ShowManager.SHOW_OBJ]=None
return index
else:
return registered
# is the show registered?
# can be used to return the index to the show
def show_registered(self,show_ref):
index=0
for show in ShowManager.shows:
if show[ShowManager.SHOW_REF]==show_ref:
return index
index+=1
return -1
# needs calling program to check that the show is not already running
def set_running(self,index,show_obj):
ShowManager.shows[index][ShowManager.SHOW_OBJ]=show_obj
# print 'running', ShowManager.shows
# print "started show ", ShowManager.shows[index][ShowManager.SHOW_REF]
# is the show running?
def show_running(self,index):
if ShowManager.shows[index][ShowManager.SHOW_OBJ]<>None:
return ShowManager.shows[index][ShowManager.SHOW_OBJ]
else:
return None
def set_stopped(self,index):
ShowManager.shows[index][ShowManager.SHOW_OBJ]=None
# print "stopped show ", ShowManager.shows[index][ShowManager.SHOW_REF]
#print 'stopping', ShowManager.shows
# are all shows stopped?
def all_shows_stopped(self):
all_stopped=True
for show in ShowManager.shows:
if show[ShowManager.SHOW_OBJ]<>None:
all_stopped=False
return all_stopped
# *********************************
# show control
# *********************************
# control initial shows from PiPresents so command is always start
def start_initial_shows(self,start_shows_text):
show_refs= start_shows_text.split()
fields=['','']
for show_ref in show_refs:
fields[0]=show_ref
fields[1]='start'
reason,message=self.control_a_show(fields)
if reason<>'normal':
return reason,message
#no shows started
return 'normal',''
# Control shows from Players so need to handle start and stop commands
def show_control(self,show_control_text):
lines = show_control_text.split('\n')
for line in lines:
if line.strip()=="":
continue
fields= line.split()
#control a show and return its ending reason
# print 'show control fields: ',fields
reason,message=self.control_a_show(fields)
if reason<>'normal':
return reason,message
#all commands done OK
return 'normal',''
def control_a_show(self,fields):
show_ref=fields[0]
show_command=fields[1]
if show_command=='start':
return self.start_show(show_ref)
elif show_command =='stop':
return self.stop_show(show_ref)
elif show_command=='exit':
return self.stop_all_shows()
elif show_command=='shutdownnow':
ShowManager.shutdown_required=True
return self.stop_all_shows()
else:
return 'error','command not recognised '+ show_command
def stop_show(self,show_ref):
index=self.show_registered(show_ref)
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Stopping show "+ show_ref + ' ' + str(index))
show_obj=self.show_running(index)
if show_obj<>None:
show_obj.managed_stop()
return 'normal','stopped a concurrent show'
def stop_all_shows(self):
for show in ShowManager.shows:
self.stop_show(show[ShowManager.SHOW_REF])
return 'normal','stopped all shows'
def start_show(self,show_ref):
show_index = self.showlist.index_of_show(show_ref)
if show_index <0:
return 'error',"Show not found in showlist: "+ show_ref
show=self.showlist.show(show_index)
index=self.register_show(show_ref)
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Starting show "+ show_ref + ' ' + str(index))
if self.show_running(index):
self.mon.log(self,"show already running "+show_ref)
return 'normal','this concurrent show already running'
if show['type']=="mediashow":
show_obj = MediaShow(show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.set_running(index,show_obj)
show_obj.play(index,self._end_play_show,None,top=True,command='nil')
return 'normal','concurrent show started'
if show['type']=="radiobuttonshow":
show_obj = RadioButtonShow(show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.set_running(index,show_obj)
show_obj.play(index,self._end_play_show,None,top=True,command='nil')
return 'normal','concurrent show started'
if show['type']=="hyperlinkshow":
show_obj = HyperlinkShow(show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.set_running(index,show_obj)
show_obj.play(index,self._end_play_show,None,top=True,command='nil')
return 'normal','concurrent show started'
elif show['type']=="menu":
show_obj = MenuShow(show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.set_running(index,show_obj)
show_obj.play(index,self._end_play_show,None,top=True,command='nil')
return 'normal','concurrent show started'
elif show['type']=="liveshow":
show_obj= LiveShow(show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.set_running(index,show_obj)
show_obj.play(index,self._end_play_show,None,top=True,command='nil')
return 'normal','concurrent show started'
else:
return 'error',"unknown show type in start concurrent show - "+ show['type']
def _end_play_show(self,index,reason,message):
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Returned from show with message: "+ message)
# print 'returned to showplayer'
self.set_stopped(index)
if self.all_shows_stopped()==True:
ShowManager.all_shows_ended_callback('normal','All shows ended',ShowManager.shutdown_required)
return reason,message
class OMXDriver(object):
_STATUS_REXP = re.compile(r"M:\s*(\w*)\s*V:")
_DONE_REXP = re.compile(r"have a nice day.*")
_LAUNCH_CMD = '/usr/bin/omxplayer -s ' #needs changing if user has installed his own version of omxplayer elsewhere
def __init__(self,widget):
self.widget=widget
self.mon=Monitor()
self.mon.on()
self.paused=None
self._process=None
def control(self,char):
self._process.send(char)
def pause(self):
self._process.send('p')
if not self.paused:
self.paused = True
else:
self.paused=False
def play(self, track, options):
self._pp(track, options,False)
def prepare(self, track, options):
self._pp(track, options,True)
def show(self):
# unpause to start playing
self._process.send('p')
self.paused = False
def stop(self):
if self._process<>None:
self._process.send('q')
# kill the subprocess (omxplayer.bin). Used for tidy up on exit.
def terminate(self,reason):
self.terminate_reason=reason
if self._process<>None:
self._process.send('q')
def terminate_reason(self):
return self.terminate_reason
# test of whether _process is running
def is_running(self):
return self._process.isalive()
# kill off omxplayer when it hasn't terminated at the end of a track.
# send SIGINT (CTRL C) so it has a chance to tidy up daemons and omxplayer.bin
def kill(self):
self._process.kill(signal.SIGINT)
# ***********************************
# INTERNAL FUNCTIONS
# ************************************
def _pp(self, track, options, pause_before_play):
self.paused=False
self.start_play_signal = False
self.end_play_signal=False
self.terminate_reason=''
track= "'"+ track.replace("'","'\\''") + "'"
cmd = OMXDriver._LAUNCH_CMD + options +" " + track
self.mon.log(self, "Send command to omxplayer: "+ cmd)
self._process = pexpect.spawn(cmd)
# uncomment to monitor output to and input from omxplayer.bin (read pexpect manual)
fout= file('omxlogfile.txt','w') #uncomment and change sys.stdout to fout to log to a file
# self._process.logfile_send = sys.stdout # send just commands to stdout
self._process.logfile=fout # send all communications to log file
if pause_before_play:
self._process.send('p')
self.paused = True
#start the thread that is going to monitor sys.stdout. Presumably needs a thread because of blocking
self._position_thread = Thread(target=self._get_position)
self._position_thread.start()
def _get_position(self):
self.start_play_signal = True
self.video_position=0.0
self.audio_position=0.0
while True:
index = self._process.expect([OMXDriver._DONE_REXP,
pexpect.TIMEOUT,
pexpect.EOF,
OMXDriver._STATUS_REXP]
,timeout=10)
if index == 1: #timeout omxplayer should not do this
self.end_play_signal=True
self.xbefore=self._process.before
self.xafter=self._process.after
self.match=self._process.match
self.end_play_reason='timeout'
break
# continue
elif index == 2: #2 is eof omxplayer should not send this
#eof detected
self.end_play_signal=True
self.xbefore=self._process.before
self.xafter=self._process.after
self.match=self._process.match
self.end_play_reason='eof'
break
elif index==0: #0 is done
#Have a nice day detected
self.end_play_signal=True
self.xbefore=self._process.before
self.xafter=self._process.after
self.match=self._process.match
self.end_play_reason='nice_day'
break
else:
# - 3 matches _STATUS_REXP so get time stamp
self.video_position = float(self._process.match.group(1))
self.audio_position = 0.0
#sleep is Ok here as it is a seperate thread. self.widget.after has funny effects as its not in the maion thread.
sleep(0.05) # stats output rate seem to be about 170mS.
class PiPresents:
def __init__(self):
self.pipresents_issue="1.2"
self.nonfull_window_width = 0.6 # proportion of width
self.nonfull_window_height= 0.6 # proportion of height
self.nonfull_window_x = 0 # position of top left corner
self.nonfull_window_y=0 # position of top left corner
StopWatch.global_enable=False
#****************************************
# Initialisation
# ***************************************
# get command line options
self.options=command_options()
# get pi presents code directory
pp_dir=sys.path[0]
self.pp_dir=pp_dir
if not os.path.exists(pp_dir+"/pipresents.py"):
tkMessageBox.showwarning("Pi Presents","Bad Application Directory")
exit()
#Initialise logging
Monitor.log_path=pp_dir
self.mon=Monitor()
self.mon.on()
if self.options['debug']==True:
Monitor.global_enable=True
else:
Monitor.global_enable=False
self.mon.log (self, "Pi Presents is starting")
self.mon.log (self," OS and separator:" + os.name +' ' + os.sep)
self.mon.log(self,"sys.path[0] - location of code: "+sys.path[0])
# self.mon.log(self,"os.getenv('HOME') - user home directory (not used): " + os.getenv('HOME'))
# self.mon.log(self,"os.path.expanduser('~') - user home directory: " + os.path.expanduser('~'))
# optional other classes used
self.ppio=None
self.tod=None
#get profile path from -p option
if self.options['profile']<>"":
self.pp_profile_path="/pp_profiles/"+self.options['profile']
else:
self.pp_profile_path = "/pp_profiles/pp_profile"
#get directory containing pp_home from the command,
if self.options['home'] =="":
home = os.path.expanduser('~')+ os.sep+"pp_home"
else:
home = self.options['home'] + os.sep+ "pp_home"
self.mon.log(self,"pp_home directory is: " + home)
#check if pp_home exists.
# try for 10 seconds to allow usb stick to automount
# fall back to pipresents/pp_home
self.pp_home=pp_dir+"/pp_home"
found=False
for i in range (1, 10):
self.mon.log(self,"Trying pp_home at: " + home + " (" + str(i)+')')
if os.path.exists(home):
found=True
self.pp_home=home
break
time.sleep (1)
if found==True:
self.mon.log(self,"Found Requested Home Directory, using pp_home at: " + home)
else:
self.mon.log(self,"FAILED to find requested home directory, using default to display error message: " + self.pp_home)
#check profile exists, if not default to error profile inside pipresents
self.pp_profile=self.pp_home+self.pp_profile_path
if os.path.exists(self.pp_profile):
self.mon.log(self,"Found Requested profile - pp_profile directory is: " + self.pp_profile)
else:
self.pp_profile=pp_dir+"/pp_home/pp_profiles/pp_profile"
self.mon.log(self,"FAILED to find requested profile, using default to display error message: pp_profile")
if self.options['verify']==True:
val =Validator()
if val.validate_profile(None,pp_dir,self.pp_home,self.pp_profile,self.pipresents_issue,False) == False:
tkMessageBox.showwarning("Pi Presents","Validation Failed")
exit()
# open the resources
self.rr=ResourceReader()
# read the file, done once for all the other classes to use.
if self.rr.read(pp_dir,self.pp_home,self.pp_profile)==False:
self.end('error','cannot find resources.cfg')
#initialise and read the showlist in the profile
self.showlist=ShowList()
self.showlist_file= self.pp_profile+ "/pp_showlist.json"
if os.path.exists(self.showlist_file):
self.showlist.open_json(self.showlist_file)
else:
self.mon.err(self,"showlist not found at "+self.showlist_file)
self.end('error','showlist not found')
# check profile and Pi Presents issues are compatible
if float(self.showlist.sissue())<>float(self.pipresents_issue):
self.mon.err(self,"Version of profile " + self.showlist.sissue() + " is not same as Pi Presents, must exit")
self.end('error','wrong version of profile')
# get the 'start' show from the showlist
index = self.showlist.index_of_show('start')
if index >=0:
self.showlist.select(index)
self.starter_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show [start] not found in showlist")
self.end('error','start show not found')
# ********************
# SET UP THE GUI
# ********************
#turn off the screenblanking and saver
if self.options['noblank']==True:
call(["xset","s", "off"])
call(["xset","s", "-dpms"])
self.root=Tk()
self.title='Pi Presents - '+ self.pp_profile
self.icon_text= 'Pi Presents'
self.root.title(self.title)
self.root.iconname(self.icon_text)
self.root.config(bg='black')
# get size of the screen
self.screen_width = self.root.winfo_screenwidth()
self.screen_height = self.root.winfo_screenheight()
# set window dimensions and decorations
if self.options['fullscreen']==True:
self.root.attributes('-fullscreen', True)
os.system('unclutter &')
self.window_width=self.screen_width
self.window_height=self.screen_height
self.window_x=0
self.window_y=0
self.root.geometry("%dx%d%+d%+d" % (self.window_width,self.window_height,self.window_x,self.window_y))
self.root.attributes('-zoomed','1')
else:
self.window_width=int(self.screen_width*self.nonfull_window_width)
self.window_height=int(self.screen_height*self.nonfull_window_height)
self.window_x=self.nonfull_window_x
self.window_y=self.nonfull_window_y
self.root.geometry("%dx%d%+d%+d" % (self.window_width,self.window_height,self.window_x,self.window_y))
#canvas covers the whole window
self.canvas_height=self.screen_height
self.canvas_width=self.screen_width
# make sure focus is set.
self.root.focus_set()
#define response to main window closing.
self.root.protocol ("WM_DELETE_WINDOW", self.exit_pressed)
#setup a canvas onto which will be drawn the images or text
self.canvas = Canvas(self.root, bg='black')
self.canvas.config(height=self.canvas_height,
width=self.canvas_width,
highlightthickness=0)
# self.canvas.pack()
self.canvas.place(x=0,y=0)
self.canvas.focus_set()
# ****************************************
# INITIALISE THE INPUT DRIVERS
# ****************************************
# looks after bindings between symbolic names and internal operations
controlsmanager=ControlsManager()
if controlsmanager.read(pp_dir,self.pp_home,self.pp_profile)==False:
self.end('error','cannot find or error in controls.cfg.cfg')
else:
controlsmanager.parse_defaults()
# each driver takes a set of inputs, binds them to symboic names
# and sets up a callback which returns the symbolic name when an input event occurs/
# use keyboard driver to bind keys to symbolic names and to set up callback
kbd=KbdDriver()
if kbd.read(pp_dir,self.pp_home,self.pp_profile)==False:
self.end('error','cannot find or error in keys.cfg')
kbd.bind_keys(self.root,self.input_pressed)
self.sr=ScreenDriver()
# read the screen click area config file
if self.sr.read(pp_dir,self.pp_home,self.pp_profile)==False:
self.end('error','cannot find screen.cfg')
# create click areas on the canvas, must be polygon as outline rectangles are not filled as far as find_closest goes
reason,message = self.sr.make_click_areas(self.canvas,self.input_pressed)
if reason=='error':
self.mon.err(self,message)
self.end('error',message)
# ****************************************
# INITIALISE THE APPLICATION AND START
# ****************************************
self.shutdown_required=False
#kick off GPIO if enabled by command line option
if self.options['gpio']==True:
from pp_gpio import PPIO
# initialise the GPIO
self.ppio=PPIO()
# PPIO.gpio_enabled=False
if self.ppio.init(pp_dir,self.pp_home,self.pp_profile,self.canvas,50,self.gpio_pressed)==False:
self.end('error','gpio error')
# and start polling gpio
self.ppio.poll()
#kick off the time of day scheduler
self.tod=TimeOfDay()
self.tod.init(pp_dir,self.pp_home,self.canvas,500)
self.tod.poll()
# Create list of start shows initialise them and then run them
self.run_start_shows()
#start tkinter
self.root.mainloop( )
# *********************
# RUN START SHOWS
# ********************
def run_start_shows(self):
#start show manager
show_id=-1 #start show
self.show_manager=ShowManager(show_id,self.showlist,self.starter_show,self.root,self.canvas,self.pp_dir,self.pp_profile,self.pp_home)
#first time through so empty show register and set callback to terminate Pi Presents if all shows have ended.
self.show_manager.init(self.all_shows_ended_callback)
#parse the start shows field and start the initial shows
start_shows_text=self.starter_show['start-show']
self.show_manager.start_initial_shows(start_shows_text)
#callback from ShowManager when all shows have ended
def all_shows_ended_callback(self,reason,message,force_shutdown):
self.mon.log(self,"All shows ended, so terminate Pi Presents")
if force_shutdown==True:
self.shutdown_required=True
self.mon.log(self,"shutdown forced by profile")
self.terminate('killed')
else:
self.end(reason,message)
# *********************
# User inputs
# ********************
#gpio callback - symbol provided by gpio
def gpio_pressed(self,index,symbol,edge):
self.mon.log(self, "GPIO Pressed: "+ symbol)
self.input_pressed(symbol,edge,'gpio')
# all input events call this callback with a symbolic name.
def input_pressed(self,symbol,edge,source):
self.mon.log(self,"input received: "+symbol)
if symbol=='pp-exit':
self.exit_pressed()
elif symbol=='pp-shutdown':
self.shutdown_pressed('delay')
elif symbol=='pp-shutdownnow':
self.shutdown_pressed('now')
else:
for show in self.show_manager.shows:
show_obj=show[ShowManager.SHOW_OBJ]
if show_obj<>None:
show_obj.input_pressed(symbol,edge,source)
# **************************************
# respond to exit inputs by terminating
# **************************************
def shutdown_pressed(self, when):
if when=='delay':
self.root.after(5000,self.on_shutdown_delay)
else:
self.shutdown_required=True
self.exit_pressed()
def on_shutdown_delay(self):
if self.ppio.shutdown_pressed():
self.shutdown_required=True
self.exit_pressed()
def exit_pressed(self):
self.mon.log(self, "kill received from user")
#terminate any running shows and players
self.mon.log(self,"kill sent to shows")
self.terminate('killed')
# kill or error
def terminate(self,reason):
needs_termination=False
for show in self.show_manager.shows:
if show[ShowManager.SHOW_OBJ]<>None:
needs_termination=True
self.mon.log(self,"Sent terminate to show "+ show[ShowManager.SHOW_REF])
show[ShowManager.SHOW_OBJ].terminate(reason)
if needs_termination==False:
self.end(reason,'terminate - no termination of lower levels required')
# ******************************
# Ending Pi Presents after all the showers and players are closed
# **************************
def end(self,reason,message):
self.mon.log(self,"Pi Presents ending with message: " + reason + ' ' + message)
if reason=='error':
self.tidy_up()
self.mon.log(self, "exiting because of error")
#close logging files
self.mon.finish()
exit()
else:
self.tidy_up()
self.mon.log(self,"no error - exiting normally")
#close logging files
self.mon.finish()
if self.shutdown_required==True:
call(['sudo', 'shutdown', '-h', '-t 5','now'])
exit()
else:
exit()
# tidy up all the peripheral bits of Pi Presents
def tidy_up(self):
#turn screen blanking back on
if self.options['noblank']==True:
call(["xset","s", "on"])
call(["xset","s", "+dpms"])
# tidy up gpio
if self.options['gpio']==True and self.ppio<>None:
self.ppio.terminate()
#tidy up time of day scheduler
if self.tod<>None:
self.tod.terminate()
# *****************************
# utilitities
# ****************************
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
self.terminate("error")
else:
return value
class VideoPlayer:
_CLOSED = "omx_closed" #probably will not exist
_STARTING = "omx_starting" #track is being prepared
_PLAYING = "omx_playing" #track is playing to the screen, may be paused
_ENDING = "omx_ending" #track is in the process of ending due to quit or end of track
# ***************************************
# EXTERNAL COMMANDS
# ***************************************
def __init__(self,
canvas,
cd,
track_params ):
"""
canvas - the canvas onto which the video is to be drawn (not!!)
cd - configuration dictionary
track_params - config dictionary for this track overides cd
"""
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.cd=cd #configuration dictionary for the videoplayer
self.canvas = canvas #canvas onto which video should be played but isn't! Use as widget for alarm
self.track_params=track_params
# get config from medialist if there.
if 'omx-audio' in self.track_params and self.track_params['omx-audio']<>"":
self.omx_audio= self.track_params['omx-audio']
else:
self.omx_audio= self.cd['omx-audio']
if self.omx_audio<>"": self.omx_audio= "-o "+ self.omx_audio
# could put instance generation in play, not sure which is better.
self.omx=OMXDriver()
self._tick_timer=None
self.error=False
self.terminate_required=False
self._init_play_state_machine()
def play(self, track,
end_callback,
ready_callback,
enable_menu=False,
starting_callback=None,
playing_callback=None,
ending_callback=None):
#instantiate arguments
self.ready_callback=ready_callback #callback when ready to play
self.end_callback=end_callback # callback when finished
self.starting_callback=starting_callback #callback during starting state
self.playing_callback=playing_callback #callback during playing state
self.ending_callback=ending_callback # callback during ending state
# enable_menu is not used by videoplayer
# and start playing the video.
if self.play_state == VideoPlayer._CLOSED:
self.mon.log(self,">play track received")
self._start_play_state_machine(track)
return True
else:
self.mon.log(self,"!< play track rejected")
return False
def key_pressed(self,key_name):
if key_name=='':
return
elif key_name in ('p',' '):
self._pause()
return
elif key_name=='escape':
self._stop()
return
def button_pressed(self,button,edge):
if button =='pause':
self._pause()
return
elif button=='stop':
self._stop()
return
def terminate(self,reason):
# circumvents state machine
self.terminate_required=True
if self.omx<>None:
self.mon.log(self,"sent terminate to omxdriver")
self.omx.terminate(reason)
else:
self.mon.log(self,"terminate, omxdriver not running")
self._end()
# ***************************************
# INTERNAL FUNCTIONS
# ***************************************
# respond to normal stop
def _stop(self):
# send signal to stop the track to the state machine
self.mon.log(self,">stop received")
self._stop_required_signal=True
#respond to internal error
def _error(self):
self.error=True
self._stop_required_signal=True
#toggle pause
def _pause(self):
if self.play_state in (VideoPlayer._PLAYING,VideoPlayer._ENDING):
self.omx.pause()
return True
else:
self.mon.log(self,"!<pause rejected")
return False
# other control when playing, used?
def _control(self,char):
if self.play_state==VideoPlayer._PLAYING:
self.mon.log(self,"> send control ot omx: "+ char)
self.omx.control(char)
return True
else:
self.mon.log(self,"!<control rejected")
return False
# called to end omxdriver
def _end(self):
if self._tick_timer<>None:
self.canvas.after_cancel(self._tick_timer)
self._tick_timer=None
if self.error==True:
self.end_callback("error",'error')
self=None
elif self.terminate_required==True:
self.end_callback("killed",'killed')
self=None
else:
self.end_callback('normal',"track has terminated")
self=None
# ***************************************
# # PLAYING STATE MACHINE
# ***************************************
"""self. play_state controls the playing sequence, it has the following values.
I am not entirely sure the starting and ending states are required.
- _closed - the omx process is not running, omx process can be initiated
- _starting - omx process is running but is not yet able to receive controls
- _playing - playing a track, controls can be sent
- _ending - omx is doing its termination, controls cannot be sent
"""
def _init_play_state_machine(self):
self._stop_required_signal=False
self.play_state=VideoPlayer._CLOSED
def _start_play_state_machine(self,track):
#initialise all the state machine variables
#self.iteration = 0 # for debugging
self._stop_required_signal=False # signal that user has pressed stop
self.play_state=VideoPlayer._STARTING
#play the selected track
options=self.omx_audio+" "+self.cd['omx-other-options']+" "
self.omx.play(track,options)
# and start polling for state changes
self._tick_timer=self.canvas.after(50, self._play_state_machine)
def _play_state_machine(self):
if self.play_state == VideoPlayer._CLOSED:
self.mon.log(self," State machine: " + self.play_state)
return
elif self.play_state == VideoPlayer._STARTING:
self.mon.log(self," State machine: " + self.play_state)
# if omxplayer is playing the track change to play state
if self.omx.start_play_signal==True:
self.mon.log(self," <start play signal received from omx")
self.omx.start_play_signal=False
# callback to the calling object to e.g remove egg timer.
if self.ready_callback<>None:
self.ready_callback()
self.play_state=VideoPlayer._PLAYING
self.mon.log(self," State machine: omx_playing started")
self._do_starting()
self._tick_timer=self.canvas.after(50, self._play_state_machine)
elif self.play_state == VideoPlayer._PLAYING:
# self.mon.log(self," State machine: " + self.play_state)
# service any queued stop signals
if self._stop_required_signal==True:
self.mon.log(self," Service stop required signal")
self._stop_omx()
self._stop_required_signal=False
self.play_state = VideoPlayer._ENDING
# omxplayer reports it is terminating so change to ending state
if self.omx.end_play_signal:
self.mon.log(self," <end play signal received")
self.mon.log(self," <end detected at: " + str(self.omx.video_position))
self.play_state = VideoPlayer._ENDING
self._do_playing()
self._tick_timer=self.canvas.after(200, self._play_state_machine)
elif self.play_state == VideoPlayer._ENDING:
self.mon.log(self," State machine: " + self.play_state)
self._do_ending()
# if spawned process has closed can change to closed state
self.mon.log (self," State machine : is omx process running? - " + str(self.omx.is_running()))
if self.omx.is_running() ==False:
self.mon.log(self," <omx process is dead")
self.play_state = VideoPlayer._CLOSED
self._end()
else:
self._tick_timer=self.canvas.after(200, self._play_state_machine)
# allow calling object do things in each state by calling the appropriate callback
def _do_playing(self):
self.video_position=self.omx.video_position
self.audio_position=self.omx.audio_position
if self.playing_callback<>None:
self.playing_callback()
def _do_starting(self):
self.video_position=0.0
self.audio_position=0.0
if self.starting_callback<>None:
self.starting_callback()
def _do_ending(self):
if self.ending_callback<>None:
self.ending_callback()
def _stop_omx(self):
# send signal to stop the track to the state machine
self.mon.log(self," >stop omx received from state machine")
if self.play_state==VideoPlayer._PLAYING:
self.omx.stop()
return True
else:
self.mon.log(self,"!<stop rejected")
return False
class PPEditor:
# ***************************************
# INIT
# ***************************************
def __init__(self):
self.editor_issue="1.2"
# get command options
self.command_options=ed_options()
# get directory holding the code
self.pp_dir=sys.path[0]
if not os.path.exists(self.pp_dir+os.sep+"pp_editor.py"):
tkMessageBox.showwarning("Pi Presents","Bad Application Directory")
exit()
#Initialise logging
Monitor.log_path=self.pp_dir
self.mon=Monitor()
self.mon.on()
if self.command_options['debug'] == True:
Monitor.global_enable=True
else:
Monitor.global_enable=False
self.mon.log (self, "Pi Presents Editor is starting")
self.mon.log (self," OS and separator " + os.name +' ' + os.sep)
self.mon.log(self,"sys.path[0] - location of code: code "+sys.path[0])
# set up the gui
#root is the Tkinter root widget
self.root = tk.Tk()
self.root.title("Editor for Pi Presents")
# self.root.configure(background='grey')
self.root.resizable(False,False)
#define response to main window closing
self.root.protocol ("WM_DELETE_WINDOW", self.app_exit)
# bind some display fields
self.filename = tk.StringVar()
self.display_selected_track_title = tk.StringVar()
self.display_show = tk.StringVar()
# define menu
menubar = Menu(self.root)
profilemenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
profilemenu.add_command(label='Open', command = self.open_existing_profile)
profilemenu.add_command(label='Validate', command = self.validate_profile)
menubar.add_cascade(label='Profile', menu = profilemenu)
ptypemenu = Menu(profilemenu, tearoff=0, bg="grey", fg="black")
ptypemenu.add_command(label='Exhibit', command = self.new_exhibit_profile)
ptypemenu.add_command(label='Media Show', command = self.new_mediashow_profile)
ptypemenu.add_command(label='Menu', command = self.new_menu_profile)
ptypemenu.add_command(label='Presentation', command = self.new_presentation_profile)
ptypemenu.add_command(label='Interactive', command = self.new_interactive_profile)
ptypemenu.add_command(label='Live Show', command = self.new_liveshow_profile)
ptypemenu.add_command(label='RadioButton Show', command = self.new_radiobuttonshow_profile)
ptypemenu.add_command(label='Hyperlink Show', command = self.new_hyperlinkshow_profile)
ptypemenu.add_command(label='Blank', command = self.new_blank_profile)
profilemenu.add_cascade(label='New from Template', menu = ptypemenu)
showmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
showmenu.add_command(label='Delete', command = self.remove_show)
showmenu.add_command(label='Edit', command = self.m_edit_show)
showmenu.add_command(label='Copy To', command = self.copy_show)
menubar.add_cascade(label='Show', menu = showmenu)
stypemenu = Menu(showmenu, tearoff=0, bg="grey", fg="black")
stypemenu.add_command(label='Menu', command = self.add_menu)
stypemenu.add_command(label='MediaShow', command = self.add_mediashow)
stypemenu.add_command(label='LiveShow', command = self.add_liveshow)
stypemenu.add_command(label='HyperlinkShow', command = self.add_hyperlinkshow)
stypemenu.add_command(label='RadioButtonShow', command = self.add_radiobuttonshow)
showmenu.add_cascade(label='Add', menu = stypemenu)
medialistmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
menubar.add_cascade(label='MediaList', menu = medialistmenu)
medialistmenu.add_command(label='Add', command = self.add_medialist)
medialistmenu.add_command(label='Delete', command = self.remove_medialist)
trackmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
trackmenu.add_command(label='Delete', command = self.remove_track)
trackmenu.add_command(label='Edit', command = self.m_edit_track)
trackmenu.add_command(label='Add from Dir', command = self.add_tracks_from_dir)
trackmenu.add_command(label='Add from File', command = self.add_track_from_file)
menubar.add_cascade(label='Track', menu = trackmenu)
typemenu = Menu(trackmenu, tearoff=0, bg="grey", fg="black")
typemenu.add_command(label='Video', command = self.new_video_track)
typemenu.add_command(label='Audio', command = self.new_audio_track)
typemenu.add_command(label='Image', command = self.new_image_track)
typemenu.add_command(label='Web', command = self.new_web_track)
typemenu.add_command(label='Message', command = self.new_message_track)
typemenu.add_command(label='Show', command = self.new_show_track)
typemenu.add_command(label='Menu Background', command = self.new_menu_background_track)
typemenu.add_command(label='Child Show', command = self.new_child_show_track)
trackmenu.add_cascade(label='New', menu = typemenu)
toolsmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
menubar.add_cascade(label='Tools', menu = toolsmenu)
toolsmenu.add_command(label='Update All', command = self.update_all)
optionsmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
menubar.add_cascade(label='Options', menu = optionsmenu)
optionsmenu.add_command(label='Edit', command = self.edit_options)
helpmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
menubar.add_cascade(label='Help', menu = helpmenu)
helpmenu.add_command(label='Help', command = self.show_help)
helpmenu.add_command(label='About', command = self.about)
self.root.config(menu=menubar)
top_frame=Frame(self.root)
top_frame.pack(side=TOP)
bottom_frame=Frame(self.root)
bottom_frame.pack(side=TOP, fill=BOTH, expand=1)
left_frame=Frame(bottom_frame, padx=5)
left_frame.pack(side=LEFT)
middle_frame=Frame(bottom_frame,padx=5)
middle_frame.pack(side=LEFT)
right_frame=Frame(bottom_frame,padx=5,pady=10)
right_frame.pack(side=LEFT)
updown_frame=Frame(bottom_frame,padx=5)
updown_frame.pack(side=LEFT)
tracks_title_frame=Frame(right_frame)
tracks_title_frame.pack(side=TOP)
tracks_label = Label(tracks_title_frame, text="Tracks in Selected Medialist")
tracks_label.pack()
tracks_frame=Frame(right_frame)
tracks_frame.pack(side=TOP)
shows_title_frame=Frame(left_frame)
shows_title_frame.pack(side=TOP)
shows_label = Label(shows_title_frame, text="Shows")
shows_label.pack()
shows_frame=Frame(left_frame)
shows_frame.pack(side=TOP)
shows_title_frame=Frame(left_frame)
shows_title_frame.pack(side=TOP)
medialists_title_frame=Frame(left_frame)
medialists_title_frame.pack(side=TOP)
medialists_label = Label(medialists_title_frame, text="Medialists")
medialists_label.pack()
medialists_frame=Frame(left_frame)
medialists_frame.pack(side=LEFT)
# define buttons
add_button = Button(middle_frame, width = 5, height = 2, text='Edit\nShow',
fg='black', command = self.m_edit_show, bg="light grey")
add_button.pack(side=RIGHT)
add_button = Button(updown_frame, width = 5, height = 1, text='Add',
fg='black', command = self.add_track_from_file, bg="light grey")
add_button.pack(side=TOP)
add_button = Button(updown_frame, width = 5, height = 1, text='Edit',
fg='black', command = self.m_edit_track, bg="light grey")
add_button.pack(side=TOP)
add_button = Button(updown_frame, width = 5, height = 1, text='Up',
fg='black', command = self.move_track_up, bg="light grey")
add_button.pack(side=TOP)
add_button = Button(updown_frame, width = 5, height = 1, text='Down',
fg='black', command = self.move_track_down, bg="light grey")
add_button.pack(side=TOP)
# define display of showlist
scrollbar = Scrollbar(shows_frame, orient=tk.VERTICAL)
self.shows_display = Listbox(shows_frame, selectmode=SINGLE, height=7,
width = 40, bg="white",activestyle=NONE,
fg="black", yscrollcommand=scrollbar.set)
scrollbar.config(command=self.shows_display.yview)
scrollbar.pack(side=RIGHT, fill=Y)
self.shows_display.pack(side=LEFT, fill=BOTH, expand=1)
self.shows_display.bind("<ButtonRelease-1>", self.e_select_show)
# define display of medialists
scrollbar = Scrollbar(medialists_frame, orient=tk.VERTICAL)
self.medialists_display = Listbox(medialists_frame, selectmode=SINGLE, height=7,
width = 40, bg="white",activestyle=NONE,
fg="black",yscrollcommand=scrollbar.set)
scrollbar.config(command=self.medialists_display.yview)
scrollbar.pack(side=RIGHT, fill=Y)
self.medialists_display.pack(side=LEFT, fill=BOTH, expand=1)
self.medialists_display.bind("<ButtonRelease-1>", self.select_medialist)
# define display of tracks
scrollbar = Scrollbar(tracks_frame, orient=tk.VERTICAL)
self.tracks_display = Listbox(tracks_frame, selectmode=SINGLE, height=15,
width = 40, bg="white",activestyle=NONE,
fg="black",yscrollcommand=scrollbar.set)
scrollbar.config(command=self.tracks_display.yview)
scrollbar.pack(side=RIGHT, fill=Y)
self.tracks_display.pack(side=LEFT,fill=BOTH, expand=1)
self.tracks_display.bind("<ButtonRelease-1>", self.e_select_track)
# initialise editor options class
self.options=Options(self.pp_dir) #creates options file in code directory if necessary
# initialise variables
self.init()
#and enter Tkinter event loop
self.root.mainloop()
# ***************************************
# INIT AND EXIT
# ***************************************
def app_exit(self):
self.root.destroy()
exit()
def init(self):
self.options.read()
self.pp_home_dir = self.options.pp_home_dir
self.initial_media_dir = self.options.initial_media_dir
self.mon.log(self,"Data Home from options is "+self.pp_home_dir)
self.mon.log(self,"Initial Media from options is "+self.initial_media_dir)
self.current_medialist=None
self.current_showlist=None
self.current_show=None
self.shows_display.delete(0,END)
self.medialists_display.delete(0,END)
self.tracks_display.delete(0,END)
# ***************************************
# MISCELLANEOUS
# ***************************************
def edit_options(self):
"""edit the options then read them from file"""
eo = OptionsDialog(self.root, self.options.options_file,'Edit Options')
if eo.result==True: self.init()
def show_help (self):
tkMessageBox.showinfo("Help",
"Read 'manual.pdf'")
def about (self):
tkMessageBox.showinfo("About","Editor for Pi Presents Profiles\n"
+"For profile version: " + self.editor_issue + "\nAuthor: Ken Thompson"+
"\nWebsite: http://pipresents.wordpress.com/")
def validate_profile(self):
val =Validator()
val.validate_profile(self.root,self.pp_dir,self.pp_home_dir,self.pp_profile_dir,self.editor_issue,True)
# **************
# PROFILES
# **************
def open_existing_profile(self):
initial_dir=self.pp_home_dir+os.sep+"pp_profiles"
if os.path.exists(initial_dir)==False:
self.mon.err(self,"Home directory not found: " + initial_dir + "\n\nHint: Data Home option must end in pp_home")
return
dir_path=tkFileDialog.askdirectory(initialdir=initial_dir)
# dir_path="C:\Users\Ken\pp_home\pp_profiles\\ttt"
if len(dir_path)>0:
self.open_profile(dir_path)
def open_profile(self,dir_path):
showlist_file = dir_path + os.sep + "pp_showlist.json"
if os.path.exists(showlist_file)==False:
self.mon.err(self,"Not a Profile: " + dir_path + "\n\nHint: Have you opened the profile directory?")
return
self.pp_profile_dir = dir_path
self.root.title("Editor for Pi Presents - "+ self.pp_profile_dir)
if self.open_showlist(self.pp_profile_dir)==False:
self.init()
return
self.open_medialists(self.pp_profile_dir)
self.refresh_tracks_display()
def new_profile(self,profile):
d = Edit1Dialog(self.root,"New Profile","Name", "")
if d .result == None:
return
name=str(d.result)
if name=="":
tkMessageBox.showwarning("New Profile","Name is blank")
return
to = self.pp_home_dir + os.sep + "pp_profiles"+ os.sep + name
if os.path.exists(to)== True:
tkMessageBox.showwarning( "New Profile","Profile exists\n(%s)" % to )
return
shutil.copytree(profile, to, symlinks=False, ignore=None)
self.open_profile(to)
def new_exhibit_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_exhibit"
self.new_profile(profile)
def new_interactive_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_interactive"
self.new_profile(profile)
def new_menu_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_menu"
self.new_profile(profile)
def new_presentation_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_presentation"
self.new_profile(profile)
def new_blank_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_blank"
self.new_profile(profile)
def new_mediashow_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_mediashow"
self.new_profile(profile)
def new_liveshow_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_liveshow"
self.new_profile(profile)
def new_radiobuttonshow_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_radiobuttonshow"
self.new_profile(profile)
def new_hyperlinkshow_profile(self):
profile = self.pp_dir+"/pp_home/pp_profiles/ppt_hyperlinkshow"
self.new_profile(profile)
# ***************************************
# Shows
# ***************************************
def open_showlist(self,dir):
showlist_file = dir + os.sep + "pp_showlist.json"
if os.path.exists(showlist_file)==False:
self.mon.err(self,"showlist file not found at " + dir + "\n\nHint: Have you opened the profile directory?")
self.app_exit()
self.current_showlist=ShowList()
self.current_showlist.open_json(showlist_file)
if float(self.current_showlist.sissue())<float(self.editor_issue) or (self.command_options['forceupdate'] == True and float(self.current_showlist.sissue())==float(self.editor_issue)):
self.update_profile()
self.mon.err(self,"Version of profile has been updated to "+self.editor_issue+", please re-open")
return False
if float(self.current_showlist.sissue())>float(self.editor_issue):
self.mon.err(self,"Version of profile is greater than editor, must exit")
self.app_exit()
self.refresh_shows_display()
return True
def save_showlist(self,dir):
if self.current_showlist<>None:
showlist_file = dir + os.sep + "pp_showlist.json"
self.current_showlist.save_list(showlist_file)
def add_eventshow(self):
self.add_show(PPdefinitions.new_shows['eventshow'])
def add_mediashow(self):
self.add_show(PPdefinitions.new_shows['mediashow'])
def add_liveshow(self):
self.add_show(PPdefinitions.new_shows['liveshow'])
def add_radiobuttonshow(self):
self.add_show(PPdefinitions.new_shows['radiobuttonshow'])
def add_hyperlinkshow(self):
self.add_show(PPdefinitions.new_shows['hyperlinkshow'])
def add_menu(self):
self.add_show(PPdefinitions.new_shows['menu'])
def add_start(self):
self.add_show(PPdefinitions.new_shows['start'])
def add_show(self,default):
# append it to the showlist and then add the medialist
if self.current_showlist<>None:
d = Edit1Dialog(self.root,"AddShow",
"Show Reference", "")
if d.result == None:
return
name=str(d.result)
if name=="":
tkMessageBox.showwarning(
"Add Show",
"Name is blank"
)
return
if self.current_showlist.index_of_show(name)<>-1:
tkMessageBox.showwarning(
"Add Show",
"A Show with this name already exists"
)
return
copied_show=self.current_showlist.copy(default,name)
mediafile=self.add_medialist(name)
if mediafile<>'':
copied_show['medialist']=mediafile
self.current_showlist.append(copied_show)
self.save_showlist(self.pp_profile_dir)
self.refresh_shows_display()
def remove_show(self):
if self.current_showlist<>None and self.current_showlist.length()>0 and self.current_showlist.show_is_selected():
if tkMessageBox.askokcancel("Delete Show","Delete Show"):
index= self.current_showlist.selected_show_index()
self.current_showlist.remove(index)
self.save_showlist(self.pp_profile_dir)
self.refresh_shows_display()
def show_refs(self):
_show_refs=[]
for index in range(self.current_showlist.length()):
if self.current_showlist.show(index)['show-ref']<>"start":
_show_refs.append(copy.deepcopy(self.current_showlist.show(index)['show-ref']))
return _show_refs
def refresh_shows_display(self):
self.shows_display.delete(0,self.shows_display.size())
for index in range(self.current_showlist.length()):
self.shows_display.insert(END, self.current_showlist.show(index)['title']+" ["+self.current_showlist.show(index)['show-ref']+"]")
if self.current_showlist.show_is_selected():
self.shows_display.itemconfig(self.current_showlist.selected_show_index(),fg='red')
self.shows_display.see(self.current_showlist.selected_show_index())
def e_select_show(self,event):
if self.current_showlist<>None and self.current_showlist.length()>0:
mouse_item_index=int(event.widget.curselection()[0])
self.current_showlist.select(mouse_item_index)
self.refresh_shows_display()
def copy_show(self):
if self.current_showlist<>None and self.current_showlist.show_is_selected():
self.add_show(self.current_showlist.selected_show())
def m_edit_show(self):
self.edit_show(PPdefinitions.show_types,PPdefinitions.show_field_specs)
def edit_show(self,show_types,field_specs):
if self.current_showlist<>None and self.current_showlist.show_is_selected():
d=EditItem(self.root,"Edit Show",self.current_showlist.selected_show(),show_types,field_specs,self.show_refs(),
self.initial_media_dir,self.pp_home_dir,'show')
if d.result == True:
self.save_showlist(self.pp_profile_dir)
self.refresh_shows_display()
# ***************************************
# Medialists
# ***************************************
def open_medialists(self,dir):
self.medialists = []
for file in os.listdir(dir):
if file.endswith(".json") and file<>'pp_showlist.json':
self.medialists = self.medialists + [file]
self.medialists_display.delete(0,self.medialists_display.size())
for index in range (len(self.medialists)):
self.medialists_display.insert(END, self.medialists[index])
self.current_medialists_index=-1
self.current_medialist=None
def add_medialist(self,name=None):
if name==None:
d = Edit1Dialog(self.root,"Add Medialist",
"File", "")
if d.result == None:
return ''
name=str(d.result)
if name=="":
tkMessageBox.showwarning(
"Add medialist",
"Name is blank"
)
return ''
if not name.endswith(".json"):
name=name+(".json")
path = self.pp_profile_dir + os.sep + name
if os.path.exists(path)== True:
tkMessageBox.showwarning("Add medialist","Medialist file exists\n(%s)" % path)
return ''
nfile = open(path,'wb')
nfile.write("{")
nfile.write("\"issue\": \""+self.editor_issue+"\",\n")
nfile.write("\"tracks\": [")
nfile.write("]")
nfile.write("}")
nfile.close()
# append it to the list
self.medialists.append(copy.deepcopy(name))
# add title to medialists display
self.medialists_display.insert(END, name)
# and set it as the selected medialist
self.refresh_medialists_display()
return name
def remove_medialist(self):
if self.current_medialist<>None:
if tkMessageBox.askokcancel("Delete Medialist","Delete Medialist"):
os.remove(self.pp_profile_dir+ os.sep + self.medialists[self.current_medialists_index])
self.open_medialists(self.pp_profile_dir)
self.refresh_medialists_display()
self.refresh_tracks_display()
def select_medialist(self,event):
"""
user clicks on a medialst in a profile so try and select it.
"""
# needs forgiving int for possible tkinter upgrade
if len(self.medialists)>0:
self.current_medialists_index=int(event.widget.curselection()[0])
self.current_medialist=MediaList()
if not self.current_medialist.open_list(self.pp_profile_dir+ os.sep + self.medialists[self.current_medialists_index],self.current_showlist.sissue()):
self.mon.err(self,"medialist is a different version to showlist: "+ self.medialists[self.current_medialists_index])
self.app_exit()
self.refresh_tracks_display()
self.refresh_medialists_display()
def refresh_medialists_display(self):
self.medialists_display.delete(0,len(self.medialists))
for index in range (len(self.medialists)):
self.medialists_display.insert(END, self.medialists[index])
if self.current_medialist<>None:
self.medialists_display.itemconfig(self.current_medialists_index,fg='red')
self.medialists_display.see(self.current_medialists_index)
def save_medialist(self):
basefile=self.medialists[self.current_medialists_index]
#print type(basefile)
# basefile=str(basefile)
#print type(basefile)
file = self.pp_profile_dir+ os.sep + basefile
self.current_medialist.save_list(file)
# ***************************************
# Tracks
# ***************************************
def refresh_tracks_display(self):
self.tracks_display.delete(0,self.tracks_display.size())
if self.current_medialist<>None:
for index in range(self.current_medialist.length()):
if self.current_medialist.track(index)['track-ref']<>"":
track_ref_string=" ["+self.current_medialist.track(index)['track-ref']+"]"
else:
track_ref_string=""
self.tracks_display.insert(END, self.current_medialist.track(index)['title']+track_ref_string)
if self.current_medialist.track_is_selected():
self.tracks_display.itemconfig(self.current_medialist.selected_track_index(),fg='red')
self.tracks_display.see(self.current_medialist.selected_track_index())
def e_select_track(self,event):
if self.current_medialist<>None and self.current_medialist.length()>0:
mouse_item_index=int(event.widget.curselection()[0])
self.current_medialist.select(mouse_item_index)
self.refresh_tracks_display()
def m_edit_track(self):
self.edit_track(PPdefinitions.track_types,PPdefinitions.track_field_specs)
def edit_track(self,track_types,field_specs):
if self.current_medialist<>None and self.current_medialist.track_is_selected():
d=EditItem(self.root,"Edit Track",self.current_medialist.selected_track(),track_types,field_specs,self.show_refs(),
self.initial_media_dir,self.pp_home_dir,'track')
if d.result == True:
self.save_medialist()
self.refresh_tracks_display()
def move_track_up(self):
if self.current_medialist<>None and self.current_medialist.track_is_selected():
self.current_medialist.move_up()
self.refresh_tracks_display()
self.save_medialist()
def move_track_down(self):
if self.current_medialist<>None and self.current_medialist.track_is_selected():
self.current_medialist.move_down()
self.refresh_tracks_display()
self.save_medialist()
def new_track(self,fields,values):
if self.current_medialist<>None:
#print '\nfields ', fields
#print '\nvalues ', values
new_track=copy.deepcopy(fields)
#print ',\new track ',new_track
self.current_medialist.append(new_track)
#print '\nbefore values ',self.current_medialist.print_list()
if values<>None:
self.current_medialist.update(self.current_medialist.length()-1,values)
self.current_medialist.select(self.current_medialist.length()-1)
self.refresh_tracks_display()
self.save_medialist()
def new_message_track(self):
self.new_track(PPdefinitions.new_tracks['message'],None)
def new_video_track(self):
self.new_track(PPdefinitions.new_tracks['video'],None)
def new_audio_track(self):
self.new_track(PPdefinitions.new_tracks['audio'],None)
def new_web_track(self):
self.new_track(PPdefinitions.new_tracks['web'],None)
def new_image_track(self):
self.new_track(PPdefinitions.new_tracks['image'],None)
def new_show_track(self):
self.new_track(PPdefinitions.new_tracks['show'],None)
def new_menu_background_track(self):
self.new_track(PPdefinitions.new_tracks['menu-background'],None)
def new_child_show_track(self):
self.new_track(PPdefinitions.new_tracks['child-show'],None)
def remove_track(self):
if self.current_medialist<>None and self.current_medialist.length()>0 and self.current_medialist.track_is_selected():
if tkMessageBox.askokcancel("Delete Track","Delete Track"):
index= self.current_medialist.selected_track_index()
self.current_medialist.remove(index)
self.save_medialist()
self.refresh_tracks_display()
def add_track_from_file(self):
if self.current_medialist==None: return
# print "initial directory ", self.options.initial_media_dir
files_path=tkFileDialog.askopenfilename(initialdir=self.options.initial_media_dir, multiple=True)
# fix for tkinter bug
files_path = self.root.tk.splitlist(files_path)
for file_path in files_path:
file_path=os.path.normpath(file_path)
# print "file path ", file_path
self.add_track(file_path)
self.save_medialist()
def add_tracks_from_dir(self):
if self.current_medialist==None: return
image_specs =[
PPdefinitions.IMAGE_FILES,
PPdefinitions.VIDEO_FILES,
PPdefinitions.AUDIO_FILES,
PPdefinitions.WEB_FILES,
('All files', '*')] #last one is ignored in finding files
# in directory, for dialog box only
directory=tkFileDialog.askdirectory(initialdir=self.options.initial_media_dir)
# deal with tuple returned on Cancel
if len(directory)==0: return
# make list of exts we recognise
exts = []
for image_spec in image_specs[:-1]:
image_list=image_spec[1:]
for ext in image_list:
exts.append(copy.deepcopy(ext))
for file in os.listdir(directory):
(root_file,ext_file)= os.path.splitext(file)
if ext_file.lower() in exts:
file_path=directory+os.sep+file
#print "file path before ", file_path
file_path=os.path.normpath(file_path)
#print "file path after ", file_path
self.add_track(file_path)
self.save_medialist()
def add_track(self,afile):
relpath = os.path.relpath(afile,self.pp_home_dir)
#print "relative path ",relpath
common = os.path.commonprefix([afile,self.pp_home_dir])
#print "common ",common
if common.endswith("pp_home") == False:
location = afile
else:
location = "+" + os.sep + relpath
location = string.replace(location,'\\','/')
#print "location ",location
(root,title)=os.path.split(afile)
(root,ext)= os.path.splitext(afile)
if ext.lower() in PPdefinitions.IMAGE_FILES:
self.new_track(PPdefinitions.new_tracks['image'],{'title':title,'track-ref':'','location':location})
elif ext.lower() in PPdefinitions.VIDEO_FILES:
self.new_track(PPdefinitions.new_tracks['video'],{'title':title,'track-ref':'','location':location})
elif ext.lower() in PPdefinitions.AUDIO_FILES:
self.new_track(PPdefinitions.new_tracks['audio'],{'title':title,'track-ref':'','location':location})
elif ext.lower() in PPdefinitions.WEB_FILES:
self.new_track(PPdefinitions.new_tracks['web'],{'title':title,'track-ref':'','location':location})
else:
self.mon.err(self,afile + " - file extension not recognised")
# *********************************************
# update profile
# **********************************************
def update_all(self):
self.init()
for profile_file in os.listdir(self.pp_home_dir+os.sep+'pp_profiles'):
# self.mon.log (self,"Updating "+profile_file)
self.pp_profile_dir = self.pp_home_dir+os.sep+'pp_profiles'+ os.sep + profile_file
if not os.path.exists(self.pp_profile_dir+os.sep+"pp_showlist.json"):
tkMessageBox.showwarning("Pi Presents","Not a profile, skipping "+self.pp_profile_dir)
else:
self.current_showlist=ShowList()
#self.mon.log (self,"Checking version "+profile_file)
self.current_showlist.open_json(self.pp_profile_dir+os.sep+"pp_showlist.json")
if float(self.current_showlist.sissue())<float(self.editor_issue):
self.mon.log(self,"Version of profile "+profile_file+ " is being updated to "+self.editor_issue)
self.update_profile()
elif (self.command_options['forceupdate'] == True and float(self.current_showlist.sissue())==float(self.editor_issue)):
self.mon.log(self, "Forced updating of " + profile_file + ' to '+self.editor_issue)
self.update_profile()
elif float(self.current_showlist.sissue())>float(self.editor_issue):
tkMessageBox.showwarning("Pi Presents", "Version of profile " +profile_file+ " is greater than editor, skipping")
else:
self.mon.log(self," Profile " + profile_file + " Already up to date ")
self.init()
tkMessageBox.showwarning("Pi Presents","All profiles updated")
def update_profile(self):
#open showlist and update its shows
# self.mon.log (self,"Updating show ")
ifile = open(self.pp_profile_dir + os.sep + "pp_showlist.json", 'rb')
shows = json.load(ifile)['shows']
ifile.close()
replacement_shows=self.update_shows(shows)
dic={'issue':self.editor_issue,'shows':replacement_shows}
ofile = open(self.pp_profile_dir + os.sep + "pp_showlist.json", "wb")
json.dump(dic,ofile,sort_keys=True,indent=1)
# UPDATE MEDIALISTS AND THEIR TRACKS
for file in os.listdir(self.pp_profile_dir):
if file.endswith(".json") and file<>'pp_showlist.json':
# self.mon.log (self,"Updating medialist " + file)
#open a medialist and update its tracks
ifile = open(self.pp_profile_dir + os.sep + file, 'rb')
tracks = json.load(ifile)['tracks']
ifile.close()
replacement_tracks=self.update_tracks(tracks)
dic={'issue':self.editor_issue,'tracks':replacement_tracks}
ofile = open(self.pp_profile_dir + os.sep + file, "wb")
json.dump(dic,ofile,sort_keys=True,indent=1)
def update_tracks(self,old_tracks):
# get correct spec from type of field
replacement_tracks=[]
for old_track in old_tracks:
#print '\nold track ',old_track
track_type=old_track['type']
spec_fields=PPdefinitions.new_tracks[track_type]
left_overs=dict()
# go through track and delete fields not in spec
for key in old_track.keys():
if key in spec_fields:
left_overs[key]=old_track[key]
#print '\n leftovers',left_overs
replacement_track=copy.deepcopy(PPdefinitions.new_tracks[track_type])
#print '\n before update', replacement_track
replacement_track.update(left_overs)
#print '\nafter update',replacement_track
replacement_tracks.append(copy.deepcopy(replacement_track))
return replacement_tracks
def update_shows(self,old_shows):
# get correct spec from type of field
replacement_shows=[]
for old_show in old_shows:
show_type=old_show['type']
spec_fields=PPdefinitions.new_shows[show_type]
left_overs=dict()
# go through track and delete fields not in spec
for key in old_show.keys():
if key in spec_fields:
left_overs[key]=old_show[key]
# print '\n leftovers',left_overs
replacement_show=copy.deepcopy(PPdefinitions.new_shows[show_type])
replacement_show.update(left_overs)
replacement_shows.append(copy.deepcopy(replacement_show))
return replacement_shows
class RadioButtonShow:
"""
starts at 'first-track' which can be any type of track or a show
The show has links of the form symbolic-name play track-ref
key, gpio or click area will play the referenced track
at the end of that track control will return to first-track
links in the tracks are ignored. Links are inherited from the show.
timeout returns to first-track
interface:
* play - selects the first track to play (first-track)
* input_pressed, - receives user events passes them to a Shower/Player if a track is playing,
otherwise actions them depending on the symbolic name supplied
"""
# *********************
# external interface
# ********************
def __init__(self, show_params, root, canvas, showlist, pp_dir, pp_home,
pp_profile):
""" canvas - the canvas that the tracks of the event show are to be written on
show_params - the name of the configuration dictionary section for the radiobuttonshow
showlist - the showlist, to enable runningnof show type tracks.
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon = Monitor()
self.mon.on()
#instantiate arguments
self.show_params = show_params
self.showlist = showlist
self.root = root
self.canvas = canvas
self.pp_dir = pp_dir
self.pp_home = pp_home
self.pp_profile = pp_profile
# open resources
self.rr = ResourceReader()
#create a path stack - only used to parse the links.
self.path = PathManager()
# init variables
self.drawn = None
self.player = None
self.shower = None
self.timeout_running = None
self.error = False
def play(self,
show_id,
end_callback,
ready_callback,
top=False,
command='nil'):
""" starts the hyperlink show at start-track
end_callback - function to be called when the show exits
ready_callback - callback when event-show is ready to display its forst track (not used?)
top is True when the show is top level (run from [start] or from show control)
command is not used
"""
#instantiate arguments
self.show_id = show_id
self.end_callback = end_callback
self.ready_callback = ready_callback
self.top = top
self.command = command
# check data files are available.
self.medialist_file = self.pp_profile + "/" + self.show_params[
'medialist']
if not os.path.exists(self.medialist_file):
self.mon.err(self,
"Medialist file not found: " + self.medialist_file)
self.end('error', "Medialist file not found")
#create a medialist object for the radiobuttonshow and read the file into it.
self.medialist = MediaList()
if self.medialist.open_list(self.medialist_file,
self.showlist.sissue()) == False:
self.mon.err(self, "Version of medialist different to Pi Presents")
self.end('error', "Version of medialist different to Pi Presents")
# read show destinations
self.first_track_ref = self.show_params['first-track-ref']
#get control bindings for this show if top level
controlsmanager = ControlsManager()
if self.top == True:
self.controls_list = controlsmanager.default_controls()
# and merge in controls from profile
self.controls_list = controlsmanager.merge_show_controls(
self.controls_list, self.show_params['controls'])
#read the show links. Track links will be added by ready_callback
links_text = self.show_params['links']
reason, message, self.links = self.path.parse_links(links_text)
if reason == 'error':
self.mon.err(self, message + " in show")
self.end('error', message)
# state variables and signals
self.end_radiobuttonshow_signal = False
self.egg_timer = None
self.next_track_signal = False
self.next_track_ref = ''
self.current_track_ref = ''
self.current_track_type = ''
# ready callback for show
if self.ready_callback <> None:
self.ready_callback()
self.canvas.delete('pp-content')
self.canvas.config(bg='black')
self.do_first_track()
#stop received from another concurrent show via ShowManager
def managed_stop(self):
# set signal to stop the radiobuttonshow when all sub-shows and players have ended
self.end_radiobuttonshow_signal = True
# then stop and shows or tracks.
if self.shower <> None:
self.shower.managed_stop()
elif self.player <> None:
self.player.input_pressed('stop')
else:
self.end('normal', 'stopped by ShowManager')
# kill or error
def terminate(self, reason):
self.end_radiobuttonshow_signal = True
if self.shower <> None:
self.shower.terminate(reason)
elif self.player <> None:
self.player.terminate(reason)
else:
self.end(reason, 'terminated without terminating shower or player')
# respond to inputs
def input_pressed(self, symbol, edge, source):
self.mon.log(self, "received symbol: " + symbol)
#does the symbol match a link, if so execute it
if self.is_link(symbol, edge, source) == True:
return
# controls are disabled so ignore inputs
if self.show_params['disable-controls'] == 'yes':
return
# does it match a control
# if at top convert symbolic name to operation otherwise lower down we have received an operatio
# look through list of controls to find match
if self.top == True:
operation = self.lookup_control(symbol, self.controls_list)
else:
operation = symbol
# print 'operation',operation
if operation <> '':
self.do_operation(operation, edge, source)
def do_operation(self, operation, edge, source):
if self.shower <> None:
# if next lower show is running pass down to stop the show and lower level
self.shower.input_pressed(operation, edge, source)
else:
#control this show and its tracks
if operation == 'stop':
if self.player <> None:
if self.current_track_ref == self.first_track_ref and self.top == False:
self.end_radiobuttonshow_signal = True
self.player.input_pressed('stop')
elif operation == 'pause':
if self.player <> None:
self.player.input_pressed(operation)
elif operation[0:4] == 'omx-' or operation[
0:6] == 'mplay-' or operation[0:5] == 'uzbl-':
if self.player <> None:
self.player.input_pressed(operation)
def lookup_control(self, symbol, controls_list):
for control in controls_list:
if symbol == control[0]:
return control[1]
return ''
def is_link(self, symbol, edge, source):
# we have links which locally define symbolic names to be converted to radiobuttonshow operations
# find the first entry in links that matches the symbol and execute its operation
#print 'radiobuttonshow ',symbol
found = False
for link in self.links:
#print link
if symbol == link[0]:
found = True
if link[1] <> 'null':
#print 'match',link[0]
link_operation = link[1]
if link_operation == 'play':
self.do_play(link[2], edge, source)
return found
# *********************
# INTERNAL FUNCTIONS
# ********************
# *********************
# Show Sequencer
# *********************
def timeout_callback(self):
self.do_play(self.first_track_ref, 'front', 'timeout')
def do_play(self, track_ref, edge, source):
if track_ref <> self.current_track_ref:
# print 'executing play ',track_ref
self.next_track_signal = True
self.next_track_op = 'play'
self.next_track_arg = track_ref
if self.shower <> None:
self.shower.input_pressed('stop', edge, source)
elif self.player <> None:
self.player.input_pressed('stop')
else:
self.what_next()
def do_first_track(self):
index = self.medialist.index_of_track(self.first_track_ref)
if index >= 0:
#don't use select the track as not using selected_track in radiobuttonshow
first_track = self.medialist.track(index)
self.path.append(first_track['track-ref'])
self.current_track_ref = self.first_track_ref
self.play_selected_track(first_track)
else:
self.mon.err(
self, "first-track not found in medialist: " +
self.show_params['first-frack-ref'])
self.end('error', "first track not found in medialist")
def what_next(self):
# user wants to end the show
if self.end_radiobuttonshow_signal == True:
self.end_radiobuttonshow_signal = False
self.end('normal', "show ended by user")
# user has selected another track
elif self.next_track_signal == True:
self.next_track_signal = False
self.next_track_ref = self.next_track_arg
self.current_track_ref = self.next_track_ref
index = self.medialist.index_of_track(self.next_track_ref)
if index >= 0:
#don't use select the track as not using selected_track in radiobuttonshow
next_track = self.medialist.track(index)
self.play_selected_track(next_track)
else:
self.mon.err(
self, "next-track not found in medialist: " +
self.next_track_ref)
self.end('error', "next track not found in medialist")
else:
#track ends naturally
self.next_track_ref = self.first_track_ref
self.current_track_ref = self.next_track_ref
index = self.medialist.index_of_track(self.next_track_ref)
if index >= 0:
#don't use select the track as not using selected_track in radiobuttonshow
next_track = self.medialist.track(index)
self.play_selected_track(next_track)
else:
self.mon.err(
self, "next-track not found in medialist: " +
self.next_track_ref)
self.end('error', "next track not found in medialist")
# *********************
# Dispatching to Players
# *********************
def page_callback(self):
# called from a Player when ready to play, if first-track merge the links from the track with those from the show
self.delete_eggtimer()
if self.current_track_ref == self.first_track_ref:
#links_text=self.player.get_links()
#reason,message,track_links=self.path.parse_links(links_text)
#if reason=='error':
#self.mon.err(self,message + " in page")
#self.end('error',message)
#self.path.merge_links(self.links,track_links)
pass
def play_selected_track(self, selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
if self.timeout_running <> None:
self.canvas.after_cancel(self.timeout_running)
self.timeout_running = None
# self.display_eggtimer(self.resource('radiobuttonshow','m01'))
self.current_track_type = selected_track['type']
#start timeout for the track if required
if self.current_track_ref <> self.first_track_ref and int(
self.show_params['timeout']) <> 0:
self.timeout_running = self.canvas.after(
int(self.show_params['timeout']) * 1000, self.timeout_callback)
# dispatch track by type
self.player = None
self.shower = None
track_type = selected_track['type']
self.mon.log(self, "Track type is: " + track_type)
if track_type == "video":
# create a videoplayer
track_file = self.complete_path(selected_track)
self.player = VideoPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type == "audio":
# create a audioplayer
track_file = self.complete_path(selected_track)
self.player = AudioPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type == "image":
track_file = self.complete_path(selected_track)
self.player = ImagePlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(
track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False,
)
elif track_type == "web":
# create a browser
track_file = self.complete_path(selected_track)
self.player = BrowserPlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type == "message":
# bit odd because MessagePlayer is used internally to display text.
text = selected_track['text']
self.player = MessagePlayer(self.show_id, self.root, self.canvas,
self.show_params, selected_track,
self.pp_dir, self.pp_home,
self.pp_profile)
self.player.play(text,
self.showlist,
self.end_player,
self.page_callback,
enable_menu=False)
elif track_type == "show":
# self.enable_click_areas()
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >= 0:
self.showlist.select(index)
selected_show = self.showlist.selected_show()
else:
self.mon.err(
self, "Show not found in showlist: " +
selected_track['sub-show'])
self.end("Unknown show")
if selected_show['type'] == "mediashow":
self.shower = MediaShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "liveshow":
self.shower = LiveShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "radiobuttonshow":
self.shower = RadioButtonShow(selected_show, self.root,
self.canvas, self.showlist,
self.pp_dir, self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "hyperlinkshow":
self.shower = HyperlinkShow(selected_show, self.root,
self.canvas, self.showlist,
self.pp_dir, self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
elif selected_show['type'] == "menu":
self.shower = MenuShow(selected_show, self.root, self.canvas,
self.showlist, self.pp_dir,
self.pp_home, self.pp_profile)
self.shower.play(self.show_id,
self.end_shower,
self.ready_callback,
top=False,
command='nil')
else:
self.mon.err(self,
"Unknown Show Type: " + selected_show['type'])
self.end("Unknown show type")
else:
self.mon.err(self, "Unknown Track Type: " + track_type)
self.end("Unknown track type")
# callback from when player ends
def end_player(self, reason, message):
self.mon.log(self, "Returned from player with message: " + message)
self.player = None
# this does not seem to change the colour of the polygon
# self.canvas.itemconfig('pp-click-area',state='hidden')
self.canvas.update_idletasks()
if reason in ("killed", "error"):
self.end(reason, message)
else:
#self.display_eggtimer(self.resource('radiobuttonshow','m02'))
self.what_next()
# callback from when shower ends
def end_shower(self, show_id, reason, message):
self.mon.log(self, "Returned from shower with message: " + message)
self.shower = None
# self.canvas.itemconfig('pp-click-area',state='hidden')
self.canvas.update_idletasks()
if reason in ("killed", "error"):
self.end(reason, message)
else:
#self.display_eggtimer(self.resource('radiobuttonshow','m03'))
self.what_next()
# *********************
# End the show
# *********************
# finish the player for killing, error or normally
# this may be called directly sub/child shows or players are not running
# if they might be running then need to call terminate.
def end(self, reason, message):
self.mon.log(self,
"Ending radiobuttonshow: " + self.show_params['show-ref'])
self.end_callback(self.show_id, reason, message)
self = None
return
# *********************
# displaying things
# *********************
def display_eggtimer(self, text):
#self.egg_timer=self.canvas.create_text(int(self.canvas['width'])/2,
#int(self.canvas['height'])/2,
#text= text,
# fill='white',
# font="Helvetica 20 bold")
#self.canvas.update_idletasks( )
pass
def delete_eggtimer(self):
if self.egg_timer != None:
self.canvas.delete(self.egg_timer)
# *********************
# utilities
# *********************
def complete_path(self, selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file <> '' and track_file[0] == "+":
track_file = self.pp_home + track_file[1:]
self.mon.log(self, "Track to play is: " + track_file)
return track_file
def resource(self, section, item):
value = self.rr.get(section, item)
if value == False:
self.mon.err(self,
"resource: " + section + ': ' + item + " not found")
# players or showers may be running so need terminate
self.terminate("error")
else:
return value
class MediaShow:
# *******************
# External interface
# ********************
def __init__(self,
show,
canvas,
showlist,
pp_home,
pp_profile):
""" canvas - the canvas that the menu is to be written on
show - the dictionary fo the show to be played
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show =show
self.showlist=showlist
self.canvas=canvas
self.pp_home=pp_home
self.pp_profile=pp_profile
# open resources
self.rr=ResourceReader()
# Init variables
self.player=None
self.shower=None
self._poll_for_interval_timer=None
self._poll_for_continue_timer=None
self._waiting_for_interval=False
self._interval_timer=None
self.error=False
self._interval_timer_signal=False
self._end_mediashow_signal=False
self._next_track_signal=False
self._previous_track_signal=False
self._play_child_signal = False
self._req_next='nil'
self._state='closed'
def play(self,end_callback,ready_callback=None, top=False,command='nil'):
""" displays the mediashow
end_callback - function to be called when the menu exits
ready_callback - callback when menu is ready to display (not used)
top is True when the show is top level (run from [start])
"""
#instantiate the arguments
self._end_callback=end_callback
self._ready_callback=ready_callback
self.top=top
self.command=command
self.mon.log(self,"Starting show: " + self.show['show-ref'])
# check data files are available.
self.media_file = self.pp_profile + "/" + self.show['medialist']
if not os.path.exists(self.media_file):
self.mon.err(self,"Medialist file not found: "+ self.media_file)
self._end('error',"Medialist file not found")
#create a medialist for the mediashow and read it.
self.medialist=MediaList()
if self.medialist.open_list(self.media_file,self.showlist.sissue())==False:
self.mon.err(self,"Version of medialist different to Pi Presents")
self._end('error',"Version of medialist different to Pi Presents")
self._wait_for_trigger()
# respond to key presses.
def key_pressed(self,key_name):
self.mon.log(self,"received key: " + key_name)
if key_name=='':
pass
elif key_name=='escape':
# if next lower show is running pass down to stop the show and lower level
if self.shower<>None:
self.shower.key_pressed(key_name)
# if not at top stop the show
else:
if self.top == False:
self._end_mediashow_signal=True
# and if a track is running stop that first
if self.player<>None:
self.player.key_pressed(key_name)
else:
# at top level in a manual presentation stop the track
if self.show['progress']=='manual':
if self.player<>None:
self.player.key_pressed(key_name)
elif key_name in ('up','down'):
# if child or sub-show is running and is a show pass to show, track does not use up/down
# otherwise use keys for next or previous
if self.shower<>None:
self.shower.key_pressed(key_name)
else:
if key_name=='up':
self._previous()
else:
self._next()
elif key_name=='return':
# if child show or sub-show is running and is show - pass down- player does not use return
# ELSE use Return to start child or to start the show if waiting
if self.shower<>None:
self.shower.key_pressed(key_name)
else:
if self._state=='playing':
if self.show['has-child']=='yes':
self._play_child_signal=True
# and stop the current track if its running
if self.player<>None:
self.player.key_pressed("escape")
else:
self._start_show()
elif key_name=='pir':
self._start_show()
elif key_name in ('p',' '):
# pass down if show or track running.
if self.shower<>None:
self.shower.key_pressed(key_name)
elif self.player<>None:
self.player.key_pressed(key_name)
def button_pressed(self,button,edge):
if button=='play': self.key_pressed("return")
elif button =='up': self.key_pressed("up")
elif button=='down': self.key_pressed("down")
elif button=='stop': self.key_pressed("escape")
elif button=='pause': self.key_pressed('p')
elif button=='PIR': self.key_pressed('pir')
# kill or error
def terminate(self,reason):
if self.shower<>None:
self.mon.log(self,"sent terminate to shower")
self.shower.terminate(reason)
elif self.player<>None:
self.mon.log(self,"sent terminate to player")
self.player.terminate(reason)
else:
self._end(reason,'terminated without terminating shower or player')
def _tidy_up(self):
if self._poll_for_continue_timer<>None:
self.canvas.after_cancel(self._poll_for_continue_timer)
self._poll_for_continue_timer=None
if self._poll_for_interval_timer<>None:
self.canvas.after_cancel(self._poll_for_interval_timer)
self._poll_for_interval_timer=None
if self._interval_timer<>None:
self.canvas.after_cancel(self._interval_timer)
self._interval_timer=None
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
self.terminate("error")
else:
return value
# ***************************
# Respond to key/button presses
# ***************************
def _stop(self,message):
self._end_mediashow_signal=True
if self._interval_timer<>None:
self.canvas.after_cancel(self._interval_timer)
def _next(self):
# stop track if running and set signal
self._next_track_signal=True
if self.shower<>None:
self.shower.key_pressed("escape")
else:
if self.player<>None:
self.player.key_pressed("escape")
def _previous(self):
self._previous_track_signal=True
if self.shower<>None:
self.shower.key_pressed("escape")
else:
if self.player<>None:
self.player.key_pressed("escape")
# ***************************
# end of show functions
# ***************************
def _end(self,reason,message):
self._end_mediashow_signal=False
self.mon.log(self,"Ending Mediashow: "+ self.show['show-ref'])
self._tidy_up()
self._end_callback(reason,message)
self=None
return
# ***************************
# Show sequencer
# ***************************
def _wait_for_trigger(self):
self._state='waiting'
if self.ready_callback<>None:
self.ready_callback()
self.mon.log(self,"Waiting for trigger: "+ self.show['trigger'])
if self.show['trigger']=="button":
# blank screen waiting for trigger if auto, otherwise display something
if self.show['progress']=="manual":
text= self.resource('mediashow','m01')
else:
text=""
self.display_message(self.canvas,'text',text,0,self._start_show)
elif self.show['trigger']=="PIR":
# blank screen waiting for trigger
text = self.resource('mediashow','m02')
self.display_message(self.canvas,'text',text,0,self._start_show)
elif self.show['trigger']=="start":
self._start_show()
else:
self.mon.err(self,"Unknown trigger: "+ self.show['trigger'])
self._end('error',"Unknown trigger type")
def _start_show(self):
self._state='playing'
self._direction='forward'
# start interval timer
if self.show['repeat']=="interval" and self.show['repeat-interval']<>0:
self._interval_timer_signal=False
self._interval_timer=self.canvas.after(int(self.show['repeat-interval'])*1000,self._end_interval_timer)
# and play the first track unless commanded otherwise
if self.command=='backward':
self.medialist.finish()
else:
self.medialist.start()
self._play_selected_track(self.medialist.selected_track())
def _what_next(self):
self._direction='forward'
# user wants to end, wait for any shows or tracks to have ended then end show
if self._end_mediashow_signal==True:
if self.player==None and self.shower==None:
self._end_mediashow_signal=False
self._end('normal',"show ended by user")
else:
pass
#returning from a subshow needing to move onward
elif self._req_next=='do-next':
self._req_next='nil'
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
#returning from a subshow needing to move backward
elif self._req_next=='do-previous':
self._req_next='nil'
self._direction='backward'
self.medialist.previous()
self._play_selected_track(self.medialist.selected_track())
# user wants to play child
elif self._play_child_signal == True:
self._play_child_signal=False
index = self.medialist.index_of_track('pp-child-show')
if index >=0:
#don't select the track as need to preserve mediashow sequence.
child_track=self.medialist.track(index)
self._display_eggtimer(self.resource('mediashow','m07'))
self._play_selected_track(child_track)
else:
self.mon.err(self,"Child show not found in medialist: "+ self.show['pp-child-show'])
self._end('error',"child show not found in medialist")
# skip to next track on user input
elif self._next_track_signal==True:
self._next_track_signal=False
if self.medialist.at_end()==True:
if self.show['sequence']=="ordered" and self.show['repeat']=='oneshot' and self.top==False:
self._end('do-next',"Return from Sub Show")
else:
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
else:
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
# skip to previous track on user input
elif self._previous_track_signal==True:
self._previous_track_signal=False
self._direction='backward'
if self.medialist.at_start()==True:
if self.show['sequence']=="ordered" and self.show['repeat']=='oneshot' and self.top==False:
self._end('do-previous',"Return from Sub Show")
else:
self.medialist.previous()
self._play_selected_track(self.medialist.selected_track())
else:
self.medialist.previous()
self._play_selected_track(self.medialist.selected_track())
# track is finished and we are on auto
elif self.show['progress']=="auto":
if self.medialist.at_end()==True:
if self.show['sequence']=="ordered" and self.show['repeat']=='oneshot' and self.top==False:
self._end('do-next',"Return from Sub Show")
#### elif
elif self.show['sequence']=="ordered" and self.show['repeat']=='oneshot' and self.top==True:
self._wait_for_trigger()
elif self._waiting_for_interval==True:
if self._interval_timer_signal==True:
self._interval_timer_signal=False
self._waiting_for_interval=False
self._start_show()
else:
self._poll_for_interval_timer=self.canvas.after(1000,self._what_next)
elif self.show['sequence']=="ordered" and self.show['repeat']=='interval' and int(self.show['repeat-interval'])>0:
self._waiting_for_interval=True
self._poll_for_interval_timer=self.canvas.after(1000,self._what_next)
elif self.show['sequence']=="ordered" and self.show['repeat']=='interval' and int(self.show['repeat-interval'])==0:
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
else:
self.mon.err(self,"Unhandled playing event: ")
self._end('error',"Unhandled playing event")
else:
self.medialist.next()
self._play_selected_track(self.medialist.selected_track())
# track has finished and we are on manual progress
elif self.show['progress']=="manual":
self._delete_eggtimer()
self._display_eggtimer(self.resource('mediashow','m03'))
self._poll_for_continue_timer=self.canvas.after(500,self._what_next)
else:
#unhandled state
self.mon.err(self,"Unhandled playing event: ")
self._end('error',"Unhandled playing event")
def _end_interval_timer(self):
self._interval_timer_signal=True
# ***************************
# Dispatching to Players/Shows
# ***************************
# used to display internal messages in situations where a medialist entry could be used.
def display_message(self,canvas,source,content,duration,_display_message_callback):
self._display_message_callback=_display_message_callback
tp={'duration':duration,'message-colour':'white','message-font':'Helvetica 20 bold'}
self.player=MessagePlayer(canvas,tp,tp)
self.player.play(content,self._display_message_end,None)
def _display_message_end(self,reason,message):
self.player=None
if reason in ('error','killed'):
self._end(reason,message)
else:
self._display_message_callback()
def complete_path(self,selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,"Track to play is: "+ track_file)
return track_file
def _play_selected_track(self,selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
self.canvas.delete(ALL)
if self.show['progress']=="manual":
self._display_eggtimer(self.resource('mediashow','m04'))
# is menu required
if self.show['has-child']=="yes":
enable_child=True
else:
enable_child=False
#dispatch track by type
self.player=None
self.shower=None
track_type = selected_track['type']
self.mon.log(self,"Track type is: "+ track_type)
if track_type=="video":
# create a videoplayer
track_file=self.complete_path(selected_track)
self.player=VideoPlayer(self.canvas,self.show,selected_track)
self.player.play(track_file,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type=="image":
track_file=self.complete_path(selected_track)
# images played from menus don't have children
self.player=ImagePlayer(self.canvas,self.show,selected_track)
self.player.play(track_file,
self.end_player,
self.ready_callback,
enable_menu=enable_child)
elif track_type=="message":
# bit odd because MessagePlayer is used internally to display text.
text=selected_track['text']
self.player=MessagePlayer(self.canvas,self.show,selected_track)
self.player.play(text,
self.end_player,
self.ready_callback,
enable_menu=enable_child
)
elif track_type=="show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >=0:
self.showlist.select(index)
selected_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ selected_track['sub-show'])
self._end('error',"Unknown show")
if selected_show['type']=="mediashow":
self.shower= MediaShow(selected_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower,top=False,command=self._direction)
elif selected_show['type']=="liveshow":
self.shower= LiveShow(selected_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower,top=False,command='nil')
elif selected_show['type']=="menu":
self.shower= MenuShow(selected_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.shower.play(self.end_shower,top=False,command='nil')
else:
self.mon.err(self,"Unknown Show Type: "+ selected_show['type'])
self._end('error'"Unknown show type")
else:
self.mon.err(self,"Unknown Track Type: "+ track_type)
self._end('error',"Unknown track type")
def ready_callback(self):
self._delete_eggtimer()
def end_player(self,reason,message):
self._req_next='nil'
self.mon.log(self,"Returned from player with message: "+ message)
self.player=None
if reason in("killed","error"):
self._end(reason,message)
elif self.show['progress']=="manual":
self._display_eggtimer(self.resource('mediashow','m05'))
self._req_next=reason
self._what_next()
else:
self._req_next=reason
self._what_next()
def end_shower(self,reason,message):
self._req_next='nil'
self.mon.log(self,"Returned from shower with message: "+ message)
self.shower=None
if reason in("killed","error"):
self._end(reason,message)
elif self.show['progress']=="manual":
self._display_eggtimer(self.resource('mediashow','m06'))
self._req_next=reason
self._what_next()
else:
self._req_next=reason
self._what_next()
def _display_eggtimer(self,text):
self.canvas.create_text(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
text= text,
fill='white',
font="Helvetica 20 bold")
self.canvas.update_idletasks( )
def _delete_eggtimer(self):
self.canvas.delete(ALL)
class PiPresents:
# Constants for list of start shows
SHOW_TEMPLATE=['',None,-1]
NAME = 0 # text name of the show
SHOW = 1 # the show object
ID = 2 # Numeic identity of the show object, sent to the instance and returned in callbacks
def __init__(self):
self.pipresents_issue="1.2"
StopWatch.global_enable=False
#****************************************
# INTERPRET COMMAND LINE
# ***************************************
self.options=command_options()
pp_dir=sys.path[0]
if not os.path.exists(pp_dir+"/pipresents.py"):
tkMessageBox.showwarning("Pi Presents","Bad Application Directory")
exit()
#Initialise logging
Monitor.log_path=pp_dir
self.mon=Monitor()
self.mon.on()
if self.options['debug']==True:
Monitor.global_enable=True
else:
Monitor.global_enable=False
self.mon.log (self, "Pi Presents is starting")
self.mon.log (self," OS and separator:" + os.name +' ' + os.sep)
self.mon.log(self,"sys.path[0] - location of code: "+sys.path[0])
# self.mon.log(self,"os.getenv('HOME') - user home directory (not used): " + os.getenv('HOME'))
# self.mon.log(self,"os.path.expanduser('~') - user home directory: " + os.path.expanduser('~'))
self.ppio=None
self.tod=None
# create profile for pp_editor test files if already not there.
if not os.path.exists(pp_dir+"/pp_home/pp_profiles/pp_editor"):
self.mon.log(self,"Making pp_editor directory")
os.makedirs(pp_dir+"/pp_home/pp_profiles/pp_editor")
#profile path from -p option
if self.options['profile']<>"":
self.pp_profile_path="/pp_profiles/"+self.options['profile']
else:
self.pp_profile_path = "/pp_profiles/pp_profile"
#get directory containing pp_home from the command,
if self.options['home'] =="":
home = os.path.expanduser('~')+ os.sep+"pp_home"
else:
home = self.options['home'] + os.sep+ "pp_home"
self.mon.log(self,"pp_home directory is: " + home)
#check if pp_home exists.
# try for 10 seconds to allow usb stick to automount
# fall back to pipresents/pp_home
self.pp_home=pp_dir+"/pp_home"
for i in range (1, 10):
self.mon.log(self,"Trying pp_home at: " + home + " (" + str(i)+')')
if os.path.exists(home):
self.mon.log(self,"Using pp_home at: " + home)
self.pp_home=home
break
time.sleep (1)
#check profile exists, if not default to error profile inside pipresents
self.pp_profile=self.pp_home+self.pp_profile_path
if not os.path.exists(self.pp_profile):
self.pp_profile=pp_dir+"/pp_home/pp_profiles/pp_profile"
if self.options['verify']==True:
val =Validator()
if val.validate_profile(None,pp_dir,self.pp_home,self.pp_profile,self.pipresents_issue,False) == False:
tkMessageBox.showwarning("Pi Presents","Validation Failed")
exit()
# open the resources
self.rr=ResourceReader()
# read the file, done once for all the other classes to use.
if self.rr.read(pp_dir,self.pp_home)==False:
#self.mon.err(self,"Version of profile " + self.showlist.sissue() + " is not same as Pi Presents, must exit")
self._end('error','cannot find resources.cfg')
#initialise the showlists and read the showlists
self.showlist=ShowList()
self.showlist_file= self.pp_profile+ "/pp_showlist.json"
if os.path.exists(self.showlist_file):
self.showlist.open_json(self.showlist_file)
else:
self.mon.err(self,"showlist not found at "+self.showlist_file)
self._end('error','showlist not found')
if float(self.showlist.sissue())<>float(self.pipresents_issue):
self.mon.err(self,"Version of profile " + self.showlist.sissue() + " is not same as Pi Presents, must exit")
self._end('error','wrong version of profile')
# get the 'start' show from the showlist
index = self.showlist.index_of_show('start')
if index >=0:
self.showlist.select(index)
self.starter_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show [start] not found in showlist")
self._end('error','start show not found')
# ********************
# SET UP THE GUI
# ********************
#turn off the screenblanking and saver
if self.options['noblank']==True:
call(["xset","s", "off"])
call(["xset","s", "-dpms"])
self.root=Tk()
# control display of window decorations
if self.options['fullscreen']==True:
self.root.attributes('-fullscreen', True)
#self.root = Tk(className="fspipresents")
os.system('unclutter &')
else:
#self.root = Tk(className="pipresents")
pass
self.title='Pi Presents - '+ self.pp_profile
self.icon_text= 'Pi Presents'
self.root.title(self.title)
self.root.iconname(self.icon_text)
self.root.config(bg='black')
# get size of the screen
self.screen_width = self.root.winfo_screenwidth()
self.screen_height = self.root.winfo_screenheight()
# set window dimensions
self.window_height=self.screen_height
self.window_width=self.screen_width
self.window_x=0
self.window_y=0
if self.options['fullscreen']==True:
bar=self.options['fullscreen']
# allow just 2 pixels for the hidden taskbar - not any more
if bar in ('left','right'):
self.window_width=self.screen_width
else:
self.window_height=self.screen_height
if bar =="left":
self.window_x=0
if bar =="top":
self.window_y=0
self.root.geometry("%dx%d%+d%+d" % (self.window_width,self.window_height,self.window_x,self.window_y))
self.root.attributes('-zoomed','1')
else:
self.window_width=self.screen_width-600
self.window_height=self.screen_height-200
self.window_x=50
self.root.geometry("%dx%d%+d%+d" % (self.window_width,self.window_height,self.window_x,self.window_y))
#canvas covers the whole window
self.canvas_height=self.window_height
self.canvas_width=self.window_width
# make sure focus is set.
self.root.focus_set()
#define response to main window closing.
self.root.protocol ("WM_DELETE_WINDOW", self.on_break_key)
# Always use CTRL-Break key to close the program as a get out of jail
self.root.bind("<Break>",self.e_on_break_key)
#pass all other keys along to start shows and hence to 'players'
self.root.bind("<Escape>", self._escape_pressed)
self.root.bind("<Up>", self._up_pressed)
self.root.bind("<Down>", self._down_pressed)
self.root.bind("<Return>", self._return_pressed)
self.root.bind("<space>", self._pause_pressed)
self.root.bind("p", self._pause_pressed)
#setup a canvas onto which will be drawn the images or text
self.canvas = Canvas(self.root, bg='black')
self.canvas.config(height=self.canvas_height, width=self.canvas_width)
self.canvas.pack()
# make sure focus is set on canvas.
self.canvas.focus_set()
# ****************************************
# INITIALISE THE APPLICATION AND START
# ****************************************
self.shutdown_required=False
#kick off GPIO if enabled by command line option
if self.options['gpio']==True:
from pp_gpio import PPIO
# initialise the GPIO
self.ppio=PPIO()
# PPIO.gpio_enabled=False
if self.ppio.init(pp_dir,self.pp_profile,self.canvas,50,self.button_pressed)==False:
self._end('error','gpio error')
# and start polling gpio
self.ppio.poll()
#kick off the time of day scheduler
self.tod=TimeOfDay()
self.tod.init(pp_dir,self.pp_home,self.canvas,500)
self.tod.poll()
# Create list of start shows initialise them and then run them
self.start_shows = self.create_start_show_list()
self.init_shows()
self.run_shows()
self.root.mainloop( )
# *********************
# EXIT APP
# *********************
# kill or error
def terminate(self,reason):
needs_termination=False
for start_show in self.start_shows:
if start_show[PiPresents.SHOW]<>None:
needs_termination=True
self.mon.log(self,"Sent terminate to show "+ start_show[PiPresents.NAME])
start_show[PiPresents.SHOW].terminate(reason)
if needs_termination==False:
self._end(reason)
def tidy_up(self):
#turn screen blanking back on
if self.options['noblank']==True:
call(["xset","s", "on"])
call(["xset","s", "+dpms"])
# tidy up gpio
if self.options['gpio']==True and self.ppio<>None:
self.ppio.terminate()
#tidy up time of day scheduler
if self.tod<>None:
self.tod.terminate()
#close logging files
self.mon.finish()
def on_kill_callback(self):
self.tidy_up()
if self.shutdown_required==True:
call(['sudo', 'shutdown', '-h', '-t 5','now'])
else:
exit()
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
self.terminate("error")
else:
return value
# *********************
# Key and button presses
# ********************
def shutdown_pressed(self):
self.root.after(5000,self.on_shutdown_delay)
def on_shutdown_delay(self):
if self.ppio.is_pressed('shutdown'):
self.shutdown_required=True
self.on_break_key()
def button_pressed(self,index,button,edge):
self.mon.log(self, "Button Pressed: "+button)
if button=="shutdown":
self.shutdown_pressed()
else:
for start_show in self.start_shows:
print "sending to show" , start_show[PiPresents.NAME]
start_show[PiPresents.SHOW].button_pressed(button,edge)
# key presses - convert from events to call to _key_pressed
def _escape_pressed(self,event): self._key_pressed("escape")
def _up_pressed(self,event): self._key_pressed("up")
def _down_pressed(self,event): self._key_pressed("down")
def _return_pressed(self,event): self._key_pressed("return")
def _pause_pressed(self,event): self._key_pressed("p")
def _key_pressed(self,key_name):
# key pressses are sent only to the controlled show.
self.mon.log(self, "Key Pressed: "+ key_name)
for start_show in self.start_shows:
start_show[PiPresents.SHOW].key_pressed(key_name)
def on_break_key(self):
self.mon.log(self, "kill received from user")
#terminate any running shows and players
self.mon.log(self,"kill sent to shows")
self.terminate('killed')
def e_on_break_key(self,event):
self.on_break_key()
# *********************
# Start show creation and running and return from
# ********************
# Extract shows from start show
def create_start_show_list(self):
start_shows_text=self.starter_show['start-show']
shows=[]
index=0
fields= start_shows_text.split()
for field in fields:
show = PiPresents.SHOW_TEMPLATE
show[PiPresents.NAME]=field
show[PiPresents.ID]=index
shows.append(copy.deepcopy(show))
index+=1
return shows
def init_shows(self):
# build list of shows to run by instantiating their classes.
for start_show in self.start_shows:
index = self.showlist.index_of_show(start_show[PiPresents.NAME])
if index >=0:
self.showlist.select(index)
show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ start_show[PiPresents.NAME])
self._end('error','show not found in showlist')
if show['type']=="mediashow":
show_obj = MediaShow(show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
start_show[PiPresents.SHOW]=show_obj
elif show['type']=="menu":
show_obj = MenuShow(show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
start_show[PiPresents.SHOW]=show_obj
elif show['type']=="liveshow":
show_obj= LiveShow(show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
start_show[PiPresents.SHOW]=show_obj
else:
self.mon.err(self,"unknown mediashow type in start show - "+ show['type'])
self._end('error','unknown mediashow type')
# run each of the shows in the list
def run_shows(self):
for start_show in self.start_shows:
show_obj = start_show[PiPresents.SHOW]
show_obj.play(start_show[PiPresents.ID],self._end_play_show,top=True,command='nil')
def _end_play_show(self,show_id,reason,message):
self.mon.log(self,"Show " + str(show_id) + " returned to Pipresents with reason: " + reason )
self.start_shows[show_id][PiPresents.SHOW]=None
# if all the shows have ended then end Pi Presents
all_terminated=True
for start_show in self.start_shows:
if start_show[PiPresents.SHOW]<>None:
all_terminated=False
if all_terminated==True:
self._end(reason,message)
def _end(self,reason,message):
self.mon.log(self,"Pi Presents ending with message: " + message)
if reason=='error':
self.mon.log(self, "exiting because of error")
self.tidy_up()
exit()
if reason=='killed':
self.mon.log(self,"kill received - exiting")
self.on_kill_callback()
else:
# should never be here or fatal error
self.mon.log(self, "exiting because invalid end reasosn")
self.tidy_up()
exit()
class OMXDriver(object):
_STATUS_REXP = re.compile(r"V :\s*([\d.]+).*")
_DONE_REXP = re.compile(r"have a nice day.*")
_LAUNCH_CMD = '/usr/bin/omxplayer -s ' #needs changing if user has installed his own version of omxplayer elsewhere
def __init__(self,widget):
self.widget=widget
self.mon=Monitor()
self.mon.on()
self.paused=None
def control(self,char):
self._process.send(char)
def pause(self):
self._process.send('p')
if not self.paused:
self.paused = True
else:
self.paused=False
def play(self, track, options):
self._pp(track, options,False)
def prepare(self, track, options):
self._pp(track, options,True)
def show(self):
# unpause to start playing
self._process.send('p')
self.paused = False
def stop(self):
self._process.send('q')
# kill the subprocess (omxplayer.bin). Used for tidy up on exit.
def terminate(self,reason):
self.terminate_reason=reason
self._process.send('q')
def terminate_reason(self):
return self.terminate_reason
# test of whether _process is running
def is_running(self):
return self._process.isalive()
# ***********************************
# INTERNAL FUNCTIONS
# ************************************
def _pp(self, track, options, pause_before_play):
self.paused=False
self.start_play_signal = False
self.end_play_signal=False
self.terminate_reason=''
track= "'"+ track.replace("'","'\\''") + "'"
cmd = OMXDriver._LAUNCH_CMD + options +" " + track
self.mon.log(self, "Send command to omxplayer: "+ cmd)
self._process = pexpect.spawn(cmd)
# uncomment to monitor output to and input from omxplayer.bin (read pexpect manual)
fout= file('omxlogfile.txt','w') #uncomment and change sys.stdout to fout to log to a file
# self._process.logfile_send = sys.stdout # send just commands to stdout
self._process.logfile=fout # send all communications to log file
if pause_before_play:
self._process.send('p')
self.paused = True
#start the thread that is going to monitor sys.stdout. Presumably needs a thread because of blocking
self._position_thread = Thread(target=self._get_position)
self._position_thread.start()
def _get_position(self):
self.start_play_signal = True
self.video_position=0.0
self.audio_position=0.0
while True:
index = self._process.expect([OMXDriver._STATUS_REXP,
pexpect.TIMEOUT,
pexpect.EOF,
OMXDriver._DONE_REXP])
if index == 1:
continue
elif index in (2, 3):
#Have a nice day detected
self.end_play_signal=True
break
else:
# presumably matches _STATUS_REXP so get video position
# has a bug, position is not displayed for an audio track (mp3). Need to look at another field in the status, but how to extract it
self.video_position = float(self._process.match.group(1))
self.audio_position = 0.0
#sleep is Ok here as it is a seperate thread. self.widget.after has funny effects as its not in the maion thread.
sleep(0.05)
class PPEditor:
# ***************************************
# INIT
# ***************************************
def __init__(self):
self.editor_issue = "1.2"
# get command options
self.command_options = ed_options()
# get directory holding the code
self.pp_dir = sys.path[0]
if not os.path.exists(self.pp_dir + os.sep + "pp_editor.py"):
tkMessageBox.showwarning("Pi Presents",
"Bad Application Directory")
exit()
#Initialise logging
Monitor.log_path = self.pp_dir
self.mon = Monitor()
self.mon.on()
if self.command_options['debug'] == True:
Monitor.global_enable = True
else:
Monitor.global_enable = False
self.mon.log(self, "Pi Presents Editor is starting")
self.mon.log(self, " OS and separator " + os.name + ' ' + os.sep)
self.mon.log(self,
"sys.path[0] - location of code: code " + sys.path[0])
# set up the gui
#root is the Tkinter root widget
self.root = tk.Tk()
self.root.title("Editor for Pi Presents")
# self.root.configure(background='grey')
self.root.resizable(False, False)
#define response to main window closing
self.root.protocol("WM_DELETE_WINDOW", self.app_exit)
# bind some display fields
self.filename = tk.StringVar()
self.display_selected_track_title = tk.StringVar()
self.display_show = tk.StringVar()
# define menu
menubar = Menu(self.root)
profilemenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
profilemenu.add_command(label='Open',
command=self.open_existing_profile)
profilemenu.add_command(label='Validate',
command=self.validate_profile)
menubar.add_cascade(label='Profile', menu=profilemenu)
ptypemenu = Menu(profilemenu, tearoff=0, bg="grey", fg="black")
ptypemenu.add_command(label='Exhibit',
command=self.new_exhibit_profile)
ptypemenu.add_command(label='Media Show',
command=self.new_mediashow_profile)
ptypemenu.add_command(label='Menu', command=self.new_menu_profile)
ptypemenu.add_command(label='Presentation',
command=self.new_presentation_profile)
ptypemenu.add_command(label='Interactive',
command=self.new_interactive_profile)
ptypemenu.add_command(label='Live Show',
command=self.new_liveshow_profile)
ptypemenu.add_command(label='RadioButton Show',
command=self.new_radiobuttonshow_profile)
ptypemenu.add_command(label='Hyperlink Show',
command=self.new_hyperlinkshow_profile)
ptypemenu.add_command(label='Blank', command=self.new_blank_profile)
profilemenu.add_cascade(label='New from Template', menu=ptypemenu)
showmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
showmenu.add_command(label='Delete', command=self.remove_show)
showmenu.add_command(label='Edit', command=self.m_edit_show)
showmenu.add_command(label='Copy To', command=self.copy_show)
menubar.add_cascade(label='Show', menu=showmenu)
stypemenu = Menu(showmenu, tearoff=0, bg="grey", fg="black")
stypemenu.add_command(label='Menu', command=self.add_menu)
stypemenu.add_command(label='MediaShow', command=self.add_mediashow)
stypemenu.add_command(label='LiveShow', command=self.add_liveshow)
stypemenu.add_command(label='HyperlinkShow',
command=self.add_hyperlinkshow)
stypemenu.add_command(label='RadioButtonShow',
command=self.add_radiobuttonshow)
showmenu.add_cascade(label='Add', menu=stypemenu)
medialistmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
menubar.add_cascade(label='MediaList', menu=medialistmenu)
medialistmenu.add_command(label='Add', command=self.add_medialist)
medialistmenu.add_command(label='Delete',
command=self.remove_medialist)
trackmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
trackmenu.add_command(label='Delete', command=self.remove_track)
trackmenu.add_command(label='Edit', command=self.m_edit_track)
trackmenu.add_command(label='Add from Dir',
command=self.add_tracks_from_dir)
trackmenu.add_command(label='Add from File',
command=self.add_track_from_file)
menubar.add_cascade(label='Track', menu=trackmenu)
typemenu = Menu(trackmenu, tearoff=0, bg="grey", fg="black")
typemenu.add_command(label='Video', command=self.new_video_track)
typemenu.add_command(label='Audio', command=self.new_audio_track)
typemenu.add_command(label='Image', command=self.new_image_track)
typemenu.add_command(label='Web', command=self.new_web_track)
typemenu.add_command(label='Message', command=self.new_message_track)
typemenu.add_command(label='Show', command=self.new_show_track)
typemenu.add_command(label='Menu Background',
command=self.new_menu_background_track)
typemenu.add_command(label='Child Show',
command=self.new_child_show_track)
trackmenu.add_cascade(label='New', menu=typemenu)
toolsmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
menubar.add_cascade(label='Tools', menu=toolsmenu)
toolsmenu.add_command(label='Update All', command=self.update_all)
optionsmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
menubar.add_cascade(label='Options', menu=optionsmenu)
optionsmenu.add_command(label='Edit', command=self.edit_options)
helpmenu = Menu(menubar, tearoff=0, bg="grey", fg="black")
menubar.add_cascade(label='Help', menu=helpmenu)
helpmenu.add_command(label='Help', command=self.show_help)
helpmenu.add_command(label='About', command=self.about)
self.root.config(menu=menubar)
top_frame = Frame(self.root)
top_frame.pack(side=TOP)
bottom_frame = Frame(self.root)
bottom_frame.pack(side=TOP, fill=BOTH, expand=1)
left_frame = Frame(bottom_frame, padx=5)
left_frame.pack(side=LEFT)
middle_frame = Frame(bottom_frame, padx=5)
middle_frame.pack(side=LEFT)
right_frame = Frame(bottom_frame, padx=5, pady=10)
right_frame.pack(side=LEFT)
updown_frame = Frame(bottom_frame, padx=5)
updown_frame.pack(side=LEFT)
tracks_title_frame = Frame(right_frame)
tracks_title_frame.pack(side=TOP)
tracks_label = Label(tracks_title_frame,
text="Tracks in Selected Medialist")
tracks_label.pack()
tracks_frame = Frame(right_frame)
tracks_frame.pack(side=TOP)
shows_title_frame = Frame(left_frame)
shows_title_frame.pack(side=TOP)
shows_label = Label(shows_title_frame, text="Shows")
shows_label.pack()
shows_frame = Frame(left_frame)
shows_frame.pack(side=TOP)
shows_title_frame = Frame(left_frame)
shows_title_frame.pack(side=TOP)
medialists_title_frame = Frame(left_frame)
medialists_title_frame.pack(side=TOP)
medialists_label = Label(medialists_title_frame, text="Medialists")
medialists_label.pack()
medialists_frame = Frame(left_frame)
medialists_frame.pack(side=LEFT)
# define buttons
add_button = Button(middle_frame,
width=5,
height=2,
text='Edit\nShow',
fg='black',
command=self.m_edit_show,
bg="light grey")
add_button.pack(side=RIGHT)
add_button = Button(updown_frame,
width=5,
height=1,
text='Add',
fg='black',
command=self.add_track_from_file,
bg="light grey")
add_button.pack(side=TOP)
add_button = Button(updown_frame,
width=5,
height=1,
text='Edit',
fg='black',
command=self.m_edit_track,
bg="light grey")
add_button.pack(side=TOP)
add_button = Button(updown_frame,
width=5,
height=1,
text='Up',
fg='black',
command=self.move_track_up,
bg="light grey")
add_button.pack(side=TOP)
add_button = Button(updown_frame,
width=5,
height=1,
text='Down',
fg='black',
command=self.move_track_down,
bg="light grey")
add_button.pack(side=TOP)
# define display of showlist
scrollbar = Scrollbar(shows_frame, orient=tk.VERTICAL)
self.shows_display = Listbox(shows_frame,
selectmode=SINGLE,
height=7,
width=40,
bg="white",
activestyle=NONE,
fg="black",
yscrollcommand=scrollbar.set)
scrollbar.config(command=self.shows_display.yview)
scrollbar.pack(side=RIGHT, fill=Y)
self.shows_display.pack(side=LEFT, fill=BOTH, expand=1)
self.shows_display.bind("<ButtonRelease-1>", self.e_select_show)
# define display of medialists
scrollbar = Scrollbar(medialists_frame, orient=tk.VERTICAL)
self.medialists_display = Listbox(medialists_frame,
selectmode=SINGLE,
height=7,
width=40,
bg="white",
activestyle=NONE,
fg="black",
yscrollcommand=scrollbar.set)
scrollbar.config(command=self.medialists_display.yview)
scrollbar.pack(side=RIGHT, fill=Y)
self.medialists_display.pack(side=LEFT, fill=BOTH, expand=1)
self.medialists_display.bind("<ButtonRelease-1>",
self.select_medialist)
# define display of tracks
scrollbar = Scrollbar(tracks_frame, orient=tk.VERTICAL)
self.tracks_display = Listbox(tracks_frame,
selectmode=SINGLE,
height=15,
width=40,
bg="white",
activestyle=NONE,
fg="black",
yscrollcommand=scrollbar.set)
scrollbar.config(command=self.tracks_display.yview)
scrollbar.pack(side=RIGHT, fill=Y)
self.tracks_display.pack(side=LEFT, fill=BOTH, expand=1)
self.tracks_display.bind("<ButtonRelease-1>", self.e_select_track)
# initialise editor options class
self.options = Options(
self.pp_dir) #creates options file in code directory if necessary
# initialise variables
self.init()
#and enter Tkinter event loop
self.root.mainloop()
# ***************************************
# INIT AND EXIT
# ***************************************
def app_exit(self):
self.root.destroy()
exit()
def init(self):
self.options.read()
self.pp_home_dir = self.options.pp_home_dir
self.initial_media_dir = self.options.initial_media_dir
self.mon.log(self, "Data Home from options is " + self.pp_home_dir)
self.mon.log(self,
"Initial Media from options is " + self.initial_media_dir)
self.current_medialist = None
self.current_showlist = None
self.current_show = None
self.shows_display.delete(0, END)
self.medialists_display.delete(0, END)
self.tracks_display.delete(0, END)
# ***************************************
# MISCELLANEOUS
# ***************************************
def edit_options(self):
"""edit the options then read them from file"""
eo = OptionsDialog(self.root, self.options.options_file,
'Edit Options')
if eo.result == True: self.init()
def show_help(self):
tkMessageBox.showinfo("Help", "Read 'manual.pdf'")
def about(self):
tkMessageBox.showinfo(
"About",
"Editor for Pi Presents Profiles\n" + "For profile version: " +
self.editor_issue + "\nAuthor: Ken Thompson" +
"\nWebsite: http://pipresents.wordpress.com/")
def validate_profile(self):
val = Validator()
val.validate_profile(self.root, self.pp_dir, self.pp_home_dir,
self.pp_profile_dir, self.editor_issue, True)
# **************
# PROFILES
# **************
def open_existing_profile(self):
initial_dir = self.pp_home_dir + os.sep + "pp_profiles"
if os.path.exists(initial_dir) == False:
self.mon.err(
self, "Home directory not found: " + initial_dir +
"\n\nHint: Data Home option must end in pp_home")
return
dir_path = tkFileDialog.askdirectory(initialdir=initial_dir)
# dir_path="C:\Users\Ken\pp_home\pp_profiles\\ttt"
if len(dir_path) > 0:
self.open_profile(dir_path)
def open_profile(self, dir_path):
showlist_file = dir_path + os.sep + "pp_showlist.json"
if os.path.exists(showlist_file) == False:
self.mon.err(
self, "Not a Profile: " + dir_path +
"\n\nHint: Have you opened the profile directory?")
return
self.pp_profile_dir = dir_path
self.root.title("Editor for Pi Presents - " + self.pp_profile_dir)
if self.open_showlist(self.pp_profile_dir) == False:
self.init()
return
self.open_medialists(self.pp_profile_dir)
self.refresh_tracks_display()
def new_profile(self, profile):
d = Edit1Dialog(self.root, "New Profile", "Name", "")
if d.result == None:
return
name = str(d.result)
if name == "":
tkMessageBox.showwarning("New Profile", "Name is blank")
return
to = self.pp_home_dir + os.sep + "pp_profiles" + os.sep + name
if os.path.exists(to) == True:
tkMessageBox.showwarning("New Profile",
"Profile exists\n(%s)" % to)
return
shutil.copytree(profile, to, symlinks=False, ignore=None)
self.open_profile(to)
def new_exhibit_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_exhibit"
self.new_profile(profile)
def new_interactive_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_interactive"
self.new_profile(profile)
def new_menu_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_menu"
self.new_profile(profile)
def new_presentation_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_presentation"
self.new_profile(profile)
def new_blank_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_blank"
self.new_profile(profile)
def new_mediashow_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_mediashow"
self.new_profile(profile)
def new_liveshow_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_liveshow"
self.new_profile(profile)
def new_radiobuttonshow_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_radiobuttonshow"
self.new_profile(profile)
def new_hyperlinkshow_profile(self):
profile = self.pp_dir + "/pp_home/pp_profiles/ppt_hyperlinkshow"
self.new_profile(profile)
# ***************************************
# Shows
# ***************************************
def open_showlist(self, dir):
showlist_file = dir + os.sep + "pp_showlist.json"
if os.path.exists(showlist_file) == False:
self.mon.err(
self, "showlist file not found at " + dir +
"\n\nHint: Have you opened the profile directory?")
self.app_exit()
self.current_showlist = ShowList()
self.current_showlist.open_json(showlist_file)
if float(self.current_showlist.sissue()) < float(
self.editor_issue) or (
self.command_options['forceupdate'] == True
and float(self.current_showlist.sissue()) == float(
self.editor_issue)):
self.update_profile()
self.mon.err(
self, "Version of profile has been updated to " +
self.editor_issue + ", please re-open")
return False
if float(self.current_showlist.sissue()) > float(self.editor_issue):
self.mon.err(
self, "Version of profile is greater than editor, must exit")
self.app_exit()
self.refresh_shows_display()
return True
def save_showlist(self, dir):
if self.current_showlist <> None:
showlist_file = dir + os.sep + "pp_showlist.json"
self.current_showlist.save_list(showlist_file)
def add_eventshow(self):
self.add_show(PPdefinitions.new_shows['eventshow'])
def add_mediashow(self):
self.add_show(PPdefinitions.new_shows['mediashow'])
def add_liveshow(self):
self.add_show(PPdefinitions.new_shows['liveshow'])
def add_radiobuttonshow(self):
self.add_show(PPdefinitions.new_shows['radiobuttonshow'])
def add_hyperlinkshow(self):
self.add_show(PPdefinitions.new_shows['hyperlinkshow'])
def add_menu(self):
self.add_show(PPdefinitions.new_shows['menu'])
def add_start(self):
self.add_show(PPdefinitions.new_shows['start'])
def add_show(self, default):
# append it to the showlist and then add the medialist
if self.current_showlist <> None:
d = Edit1Dialog(self.root, "AddShow", "Show Reference", "")
if d.result == None:
return
name = str(d.result)
if name == "":
tkMessageBox.showwarning("Add Show", "Name is blank")
return
if self.current_showlist.index_of_show(name) <> -1:
tkMessageBox.showwarning(
"Add Show", "A Show with this name already exists")
return
copied_show = self.current_showlist.copy(default, name)
mediafile = self.add_medialist(name)
if mediafile <> '':
copied_show['medialist'] = mediafile
self.current_showlist.append(copied_show)
self.save_showlist(self.pp_profile_dir)
self.refresh_shows_display()
def remove_show(self):
if self.current_showlist <> None and self.current_showlist.length(
) > 0 and self.current_showlist.show_is_selected():
if tkMessageBox.askokcancel("Delete Show", "Delete Show"):
index = self.current_showlist.selected_show_index()
self.current_showlist.remove(index)
self.save_showlist(self.pp_profile_dir)
self.refresh_shows_display()
def show_refs(self):
_show_refs = []
for index in range(self.current_showlist.length()):
if self.current_showlist.show(index)['show-ref'] <> "start":
_show_refs.append(
copy.deepcopy(
self.current_showlist.show(index)['show-ref']))
return _show_refs
def refresh_shows_display(self):
self.shows_display.delete(0, self.shows_display.size())
for index in range(self.current_showlist.length()):
self.shows_display.insert(
END,
self.current_showlist.show(index)['title'] + " [" +
self.current_showlist.show(index)['show-ref'] + "]")
if self.current_showlist.show_is_selected():
self.shows_display.itemconfig(
self.current_showlist.selected_show_index(), fg='red')
self.shows_display.see(self.current_showlist.selected_show_index())
def e_select_show(self, event):
if self.current_showlist <> None and self.current_showlist.length(
) > 0:
mouse_item_index = int(event.widget.curselection()[0])
self.current_showlist.select(mouse_item_index)
self.refresh_shows_display()
def copy_show(self):
if self.current_showlist <> None and self.current_showlist.show_is_selected(
):
self.add_show(self.current_showlist.selected_show())
def m_edit_show(self):
self.edit_show(PPdefinitions.show_types,
PPdefinitions.show_field_specs)
def edit_show(self, show_types, field_specs):
if self.current_showlist <> None and self.current_showlist.show_is_selected(
):
d = EditItem(self.root, "Edit Show",
self.current_showlist.selected_show(), show_types,
field_specs, self.show_refs(), self.initial_media_dir,
self.pp_home_dir, 'show')
if d.result == True:
self.save_showlist(self.pp_profile_dir)
self.refresh_shows_display()
# ***************************************
# Medialists
# ***************************************
def open_medialists(self, dir):
self.medialists = []
for file in os.listdir(dir):
if file.endswith(".json") and file <> 'pp_showlist.json':
self.medialists = self.medialists + [file]
self.medialists_display.delete(0, self.medialists_display.size())
for index in range(len(self.medialists)):
self.medialists_display.insert(END, self.medialists[index])
self.current_medialists_index = -1
self.current_medialist = None
def add_medialist(self, name=None):
if name == None:
d = Edit1Dialog(self.root, "Add Medialist", "File", "")
if d.result == None:
return ''
name = str(d.result)
if name == "":
tkMessageBox.showwarning("Add medialist", "Name is blank")
return ''
if not name.endswith(".json"):
name = name + (".json")
path = self.pp_profile_dir + os.sep + name
if os.path.exists(path) == True:
tkMessageBox.showwarning("Add medialist",
"Medialist file exists\n(%s)" % path)
return ''
nfile = open(path, 'wb')
nfile.write("{")
nfile.write("\"issue\": \"" + self.editor_issue + "\",\n")
nfile.write("\"tracks\": [")
nfile.write("]")
nfile.write("}")
nfile.close()
# append it to the list
self.medialists.append(copy.deepcopy(name))
# add title to medialists display
self.medialists_display.insert(END, name)
# and set it as the selected medialist
self.refresh_medialists_display()
return name
def remove_medialist(self):
if self.current_medialist <> None:
if tkMessageBox.askokcancel("Delete Medialist",
"Delete Medialist"):
os.remove(self.pp_profile_dir + os.sep +
self.medialists[self.current_medialists_index])
self.open_medialists(self.pp_profile_dir)
self.refresh_medialists_display()
self.refresh_tracks_display()
def select_medialist(self, event):
"""
user clicks on a medialst in a profile so try and select it.
"""
# needs forgiving int for possible tkinter upgrade
if len(self.medialists) > 0:
self.current_medialists_index = int(event.widget.curselection()[0])
self.current_medialist = MediaList('ordered')
if not self.current_medialist.open_list(
self.pp_profile_dir + os.sep +
self.medialists[self.current_medialists_index],
self.current_showlist.sissue()):
self.mon.err(
self, "medialist is a different version to showlist: " +
self.medialists[self.current_medialists_index])
self.app_exit()
self.refresh_tracks_display()
self.refresh_medialists_display()
def refresh_medialists_display(self):
self.medialists_display.delete(0, len(self.medialists))
for index in range(len(self.medialists)):
self.medialists_display.insert(END, self.medialists[index])
if self.current_medialist <> None:
self.medialists_display.itemconfig(self.current_medialists_index,
fg='red')
self.medialists_display.see(self.current_medialists_index)
def save_medialist(self):
basefile = self.medialists[self.current_medialists_index]
#print type(basefile)
# basefile=str(basefile)
#print type(basefile)
file = self.pp_profile_dir + os.sep + basefile
self.current_medialist.save_list(file)
# ***************************************
# Tracks
# ***************************************
def refresh_tracks_display(self):
self.tracks_display.delete(0, self.tracks_display.size())
if self.current_medialist <> None:
for index in range(self.current_medialist.length()):
if self.current_medialist.track(index)['track-ref'] <> "":
track_ref_string = " [" + self.current_medialist.track(
index)['track-ref'] + "]"
else:
track_ref_string = ""
self.tracks_display.insert(
END,
self.current_medialist.track(index)['title'] +
track_ref_string)
if self.current_medialist.track_is_selected():
self.tracks_display.itemconfig(
self.current_medialist.selected_track_index(), fg='red')
self.tracks_display.see(
self.current_medialist.selected_track_index())
def e_select_track(self, event):
if self.current_medialist <> None and self.current_medialist.length(
) > 0:
mouse_item_index = int(event.widget.curselection()[0])
self.current_medialist.select(mouse_item_index)
self.refresh_tracks_display()
def m_edit_track(self):
self.edit_track(PPdefinitions.track_types,
PPdefinitions.track_field_specs)
def edit_track(self, track_types, field_specs):
if self.current_medialist <> None and self.current_medialist.track_is_selected(
):
d = EditItem(self.root, "Edit Track",
self.current_medialist.selected_track(), track_types,
field_specs, self.show_refs(), self.initial_media_dir,
self.pp_home_dir, 'track')
if d.result == True:
self.save_medialist()
self.refresh_tracks_display()
def move_track_up(self):
if self.current_medialist <> None and self.current_medialist.track_is_selected(
):
self.current_medialist.move_up()
self.refresh_tracks_display()
self.save_medialist()
def move_track_down(self):
if self.current_medialist <> None and self.current_medialist.track_is_selected(
):
self.current_medialist.move_down()
self.refresh_tracks_display()
self.save_medialist()
def new_track(self, fields, values):
if self.current_medialist <> None:
#print '\nfields ', fields
#print '\nvalues ', values
new_track = copy.deepcopy(fields)
#print ',\new track ',new_track
self.current_medialist.append(new_track)
#print '\nbefore values ',self.current_medialist.print_list()
if values <> None:
self.current_medialist.update(
self.current_medialist.length() - 1, values)
self.current_medialist.select(self.current_medialist.length() - 1)
self.refresh_tracks_display()
self.save_medialist()
def new_message_track(self):
self.new_track(PPdefinitions.new_tracks['message'], None)
def new_video_track(self):
self.new_track(PPdefinitions.new_tracks['video'], None)
def new_audio_track(self):
self.new_track(PPdefinitions.new_tracks['audio'], None)
def new_web_track(self):
self.new_track(PPdefinitions.new_tracks['web'], None)
def new_image_track(self):
self.new_track(PPdefinitions.new_tracks['image'], None)
def new_show_track(self):
self.new_track(PPdefinitions.new_tracks['show'], None)
def new_menu_background_track(self):
self.new_track(PPdefinitions.new_tracks['menu-background'], None)
def new_child_show_track(self):
self.new_track(PPdefinitions.new_tracks['child-show'], None)
def remove_track(self):
if self.current_medialist <> None and self.current_medialist.length(
) > 0 and self.current_medialist.track_is_selected():
if tkMessageBox.askokcancel("Delete Track", "Delete Track"):
index = self.current_medialist.selected_track_index()
self.current_medialist.remove(index)
self.save_medialist()
self.refresh_tracks_display()
def add_track_from_file(self):
if self.current_medialist == None: return
# print "initial directory ", self.options.initial_media_dir
files_path = tkFileDialog.askopenfilename(
initialdir=self.options.initial_media_dir, multiple=True)
# fix for tkinter bug
files_path = self.root.tk.splitlist(files_path)
for file_path in files_path:
file_path = os.path.normpath(file_path)
# print "file path ", file_path
self.add_track(file_path)
self.save_medialist()
def add_tracks_from_dir(self):
if self.current_medialist == None: return
image_specs = [
PPdefinitions.IMAGE_FILES, PPdefinitions.VIDEO_FILES,
PPdefinitions.AUDIO_FILES, PPdefinitions.WEB_FILES,
('All files', '*')
] #last one is ignored in finding files
# in directory, for dialog box only
directory = tkFileDialog.askdirectory(
initialdir=self.options.initial_media_dir)
# deal with tuple returned on Cancel
if len(directory) == 0: return
# make list of exts we recognise
exts = []
for image_spec in image_specs[:-1]:
image_list = image_spec[1:]
for ext in image_list:
exts.append(copy.deepcopy(ext))
for file in os.listdir(directory):
(root_file, ext_file) = os.path.splitext(file)
if ext_file.lower() in exts:
file_path = directory + os.sep + file
#print "file path before ", file_path
file_path = os.path.normpath(file_path)
#print "file path after ", file_path
self.add_track(file_path)
self.save_medialist()
def add_track(self, afile):
relpath = os.path.relpath(afile, self.pp_home_dir)
#print "relative path ",relpath
common = os.path.commonprefix([afile, self.pp_home_dir])
#print "common ",common
if common.endswith("pp_home") == False:
location = afile
else:
location = "+" + os.sep + relpath
location = string.replace(location, '\\', '/')
#print "location ",location
(root, title) = os.path.split(afile)
(root, ext) = os.path.splitext(afile)
if ext.lower() in PPdefinitions.IMAGE_FILES:
self.new_track(PPdefinitions.new_tracks['image'], {
'title': title,
'track-ref': '',
'location': location
})
elif ext.lower() in PPdefinitions.VIDEO_FILES:
self.new_track(PPdefinitions.new_tracks['video'], {
'title': title,
'track-ref': '',
'location': location
})
elif ext.lower() in PPdefinitions.AUDIO_FILES:
self.new_track(PPdefinitions.new_tracks['audio'], {
'title': title,
'track-ref': '',
'location': location
})
elif ext.lower() in PPdefinitions.WEB_FILES:
self.new_track(PPdefinitions.new_tracks['web'], {
'title': title,
'track-ref': '',
'location': location
})
else:
self.mon.err(self, afile + " - file extension not recognised")
# *********************************************
# update profile
# **********************************************
def update_all(self):
self.init()
for profile_file in os.listdir(self.pp_home_dir + os.sep +
'pp_profiles'):
# self.mon.log (self,"Updating "+profile_file)
self.pp_profile_dir = self.pp_home_dir + os.sep + 'pp_profiles' + os.sep + profile_file
if not os.path.exists(self.pp_profile_dir + os.sep +
"pp_showlist.json"):
tkMessageBox.showwarning(
"Pi Presents",
"Not a profile, skipping " + self.pp_profile_dir)
else:
self.current_showlist = ShowList()
#self.mon.log (self,"Checking version "+profile_file)
self.current_showlist.open_json(self.pp_profile_dir + os.sep +
"pp_showlist.json")
if float(self.current_showlist.sissue()) < float(
self.editor_issue):
self.mon.log(
self, "Version of profile " + profile_file +
" is being updated to " + self.editor_issue)
self.update_profile()
elif (self.command_options['forceupdate'] == True
and float(self.current_showlist.sissue()) == float(
self.editor_issue)):
self.mon.log(
self, "Forced updating of " + profile_file + ' to ' +
self.editor_issue)
self.update_profile()
elif float(self.current_showlist.sissue()) > float(
self.editor_issue):
tkMessageBox.showwarning(
"Pi Presents", "Version of profile " + profile_file +
" is greater than editor, skipping")
else:
self.mon.log(
self,
" Profile " + profile_file + " Already up to date ")
self.init()
tkMessageBox.showwarning("Pi Presents", "All profiles updated")
def update_profile(self):
#open showlist and update its shows
# self.mon.log (self,"Updating show ")
ifile = open(self.pp_profile_dir + os.sep + "pp_showlist.json", 'rb')
shows = json.load(ifile)['shows']
ifile.close()
replacement_shows = self.update_shows(shows)
dic = {'issue': self.editor_issue, 'shows': replacement_shows}
ofile = open(self.pp_profile_dir + os.sep + "pp_showlist.json", "wb")
json.dump(dic, ofile, sort_keys=True, indent=1)
# UPDATE MEDIALISTS AND THEIR TRACKS
for file in os.listdir(self.pp_profile_dir):
if file.endswith(".json") and file <> 'pp_showlist.json':
# self.mon.log (self,"Updating medialist " + file)
#open a medialist and update its tracks
ifile = open(self.pp_profile_dir + os.sep + file, 'rb')
tracks = json.load(ifile)['tracks']
ifile.close()
replacement_tracks = self.update_tracks(tracks)
dic = {
'issue': self.editor_issue,
'tracks': replacement_tracks
}
ofile = open(self.pp_profile_dir + os.sep + file, "wb")
json.dump(dic, ofile, sort_keys=True, indent=1)
def update_tracks(self, old_tracks):
# get correct spec from type of field
replacement_tracks = []
for old_track in old_tracks:
#print '\nold track ',old_track
track_type = old_track['type']
spec_fields = PPdefinitions.new_tracks[track_type]
left_overs = dict()
# go through track and delete fields not in spec
for key in old_track.keys():
if key in spec_fields:
left_overs[key] = old_track[key]
#print '\n leftovers',left_overs
replacement_track = copy.deepcopy(
PPdefinitions.new_tracks[track_type])
#print '\n before update', replacement_track
replacement_track.update(left_overs)
#print '\nafter update',replacement_track
replacement_tracks.append(copy.deepcopy(replacement_track))
return replacement_tracks
def update_shows(self, old_shows):
# get correct spec from type of field
replacement_shows = []
for old_show in old_shows:
show_type = old_show['type']
spec_fields = PPdefinitions.new_shows[show_type]
left_overs = dict()
# go through track and delete fields not in spec
for key in old_show.keys():
if key in spec_fields:
left_overs[key] = old_show[key]
# print '\n leftovers',left_overs
replacement_show = copy.deepcopy(
PPdefinitions.new_shows[show_type])
replacement_show.update(left_overs)
replacement_shows.append(copy.deepcopy(replacement_show))
return replacement_shows
class KbdDriver:
config=None
def __init__(self):
self.mon=Monitor()
self.mon.on()
# sets up tkinter keyboard events such that any key press
# does a callback to 'callback' with the event object and a symbolic name.
def bind_keys(self,widget,callback):
for option in KbdDriver.config.items('keys'):
condition=option[0]
symbolic_name=option[1]
# print condition,symbolic_name
widget.bind(condition, lambda event, name=symbolic_name: self.specific_key(callback,name))
# bind all the normal keys that return a printing character such that x produces pp-key-x
widget.bind("<Key>", lambda event : self.normal_key(callback,event))
## # bind special keys to the specified symbolic name
## widget.bind("<Break>", lambda event, name='pp-exit': self.specific_key(callback,name))
## widget.bind("<Escape>", lambda event, name='pp-stop': self.specific_key(callback,name))
## widget.bind("<Up>", lambda event, name='pp-up': self.specific_key(callback,name))
## widget.bind("<Down>", lambda event, name='pp-down': self.specific_key(callback,name))
## widget.bind("<Return>", lambda event, name='pp-play': self.specific_key(callback,name))
##
def specific_key(self,callback,name):
callback(name,'front','key')
# alphanumeric keys- convert to symbolic by adding pp-key-
def normal_key(self,callback,event):
key=event.char
if key<>'':
callback('pp-key-'+key,'front','key')
#read the key bindings from keys.cfg
def read(self,pp_dir,pp_home,pp_profile):
if KbdDriver.config==None:
# try inside profile
tryfile=pp_profile+os.sep+"keys.cfg"
# self.mon.log(self,"Trying keys.cfg in profile at: "+ tryfile)
if os.path.exists(tryfile):
filename=tryfile
else:
# try inside pp_home
# self.mon.log(self,"keys.cfg not found at "+ tryfile+ " trying pp_home")
tryfile=pp_home+os.sep+"keys.cfg"
if os.path.exists(tryfile):
filename=tryfile
else:
# try inside pipresents
# self.mon.log(self,"keys.cfg not found at "+ tryfile + " trying inside pipresents")
tryfile=pp_dir+os.sep+'pp_home'+os.sep+"keys.cfg"
if os.path.exists(tryfile):
filename=tryfile
else:
self.mon.log(self,"keys.cfg not found at "+ tryfile)
self.mon.err(self,"keys.cfg not found")
return False
KbdDriver.config = ConfigParser.ConfigParser()
KbdDriver.config.optionxform=str
KbdDriver.config.read(filename)
self.mon.log(self,"keys.cfg read from "+ filename)
if KbdDriver.config.has_section('keys')==False:
self.mon.err(self,"no [keys] section in keys.cfg")
return False
return True
def has_section(self,section):
if KbdDriver.config.has_section('keys')==False:
return False
class ImagePlayer:
""" Displays an image on a canvas for a period of time. Image display can be interrupted
Implements animation of transitions but Pi is too slow without GPU aceleration."""
# slide state constants
NO_SLIDE = 0
SLIDE_IN = 1
SLIDE_DWELL = 2
SLIDE_OUT = 3
# *******************
# external commands
# *******************
def __init__(self, canvas, cd, track_params):
"""
canvas - the canvas onto which the image is to be drawn
cd - dictionary of show parameters
track_params - disctionary of track paramters
"""
self.mon = Monitor()
self.mon.on()
self.canvas = canvas
self.cd = cd
self.track_params = track_params
# open resources
self.rr = ResourceReader()
# get config from medialist if there.
if 'duration' in self.track_params and self.track_params[
'duration'] <> "":
self.duration = int(self.track_params['duration'])
else:
self.duration = int(self.cd['duration'])
if 'transition' in self.track_params and self.track_params[
'transition'] <> "":
self.transition = self.track_params['transition']
else:
self.transition = self.cd['transition']
# keep dwell and porch as an integer multiple of tick
self.porch = 1000 #length of pre and post porches for an image (milliseconds)
self.tick = 100 # tick time for image display (milliseconds)
self.dwell = (1000 * self.duration) - (2 * self.porch)
if self.dwell < 0: self.dwell = 0
self.centre_x = int(self.canvas['width']) / 2
self.centre_y = int(self.canvas['height']) / 2
def play(self,
track,
end_callback,
ready_callback,
enable_menu=False,
starting_callback=None,
playing_callback=None,
ending_callback=None):
# instantiate arguments
self.track = track
self.enable_menu = enable_menu
self.ready_callback = ready_callback
self.end_callback = end_callback
#init state and signals
self.state = ImagePlayer.NO_SLIDE
self.quit_signal = False
self.kill_required_signal = False
self.error = False
self._tick_timer = None
self.drawn = None
self.paused = False
self.pause_text = None
if os.path.exists(self.track) == True:
self.pil_image = PIL.Image.open(self.track)
# adjust brightness and rotate (experimental)
# pil_image_enhancer=PIL.ImageEnhance.Brightness(pil_image)
# pil_image=pil_image_enhancer.enhance(0.1)
# pil_image=pil_image.rotate(45)
# tk_image = PIL.ImageTk.PhotoImage(pil_image)
else:
self.pil_image = None
# display 'Out of Order' for 7 seconds
self.dwell = (1000 * 7) - (2 * self.porch)
if self.dwell < 0: self.dwell = 0
# and start image rendering
self._start_front_porch()
def key_pressed(self, key_name):
if key_name == '':
return
elif key_name in ('p', ' '):
self.pause()
elif key_name == 'escape':
self._stop()
return
def button_pressed(self, button, edge):
if button == 'pause':
self.pause()
elif button == 'stop':
self._stop()
return
def terminate(self, reason):
if reason == 'error':
self.error = True
self.quit_signal = True
else:
self.kill_required_signal = True
self.quit_signal = True
def pause(self):
if not self.paused:
self.paused = True
else:
self.paused = False
# *******************
# internal functions
# *******************
def _stop(self):
self.quit_signal = True
def _error(self):
self.error = True
self.quit_signal = True
#called when back porch has completed or quit signal is received
def _end(self, reason, message):
if self._tick_timer <> None:
self.canvas.after_cancel(self._tick_timer)
self._tick_timer = None
self.quit_signal = False
# self.canvas.delete(ALL)
self.canvas.update_idletasks()
self.state = self.NO_SLIDE
if self.error == True:
self.end_callback("error", message)
self = None
elif self.kill_required_signal == True:
self.end_callback("killed", message)
self = None
else:
self.end_callback(reason, message)
self = None
def resource(self, section, item):
value = self.rr.get(section, item)
if value == False:
self.mon.err(self,
"resource: " + section + ': ' + item + " not found")
self._error()
else:
return value
def _start_front_porch(self):
self.state = ImagePlayer.SLIDE_IN
self.porch_counter = 0
if self.ready_callback <> None: self.ready_callback()
if self.transition == "cut":
#just display the slide full brightness. No need for porch but used for symmetry
if self.pil_image <> None:
self.tk_img = PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x,
self.centre_y,
image=self.tk_img,
anchor=CENTER)
elif self.transition == "fade":
#experimental start black and increase brightness (controlled by porch_counter).
self._display_image()
elif self.transition == "slide":
#experimental, start in middle and move to right (controlled by porch_counter)
if self.pil_image <> None:
self.tk_img = PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x,
self.centre_y,
image=self.tk_img,
anchor=CENTER)
elif self.transition == "crop":
#experimental, start in middle and crop from right (controlled by porch_counter)
if self.pil_image <> None:
self.tk_img = PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x,
self.centre_y,
image=self.tk_img,
anchor=CENTER)
self._tick_timer = self.canvas.after(self.tick, self._do_front_porch)
def _do_front_porch(self):
if self.quit_signal == True:
self._end('normal', 'user quit')
else:
self.porch_counter = self.porch_counter + 1
# print "doing slide front porch " +str(self.porch_counter)
self._display_image()
if self.porch_counter == self.porch / self.tick:
self._start_dwell()
else:
self._tick_timer = self.canvas.after(self.tick,
self._do_front_porch)
def _start_dwell(self):
self.state = ImagePlayer.SLIDE_DWELL
self.dwell_counter = 0
self._tick_timer = self.canvas.after(self.tick, self._do_dwell)
def _do_dwell(self):
if self.quit_signal == True:
self.mon.log(self, "quit received")
self._end('normal', 'user quit')
else:
if self.paused == False:
self.dwell_counter = self.dwell_counter + 1
# one time flipping of pause text
if self.paused == True and self.pause_text == None:
self.pause_text = self.canvas.create_text(100,
100,
anchor=NW,
text=self.resource(
'imageplayer',
'm01'),
fill="white",
font="arial 25 bold")
self.canvas.update_idletasks()
if self.paused == False and self.pause_text <> None:
self.canvas.delete(self.pause_text)
self.pause_text = None
self.canvas.update_idletasks()
if self.dwell_counter == self.dwell / self.tick:
self._start_back_porch()
else:
self._tick_timer = self.canvas.after(self.tick, self._do_dwell)
def _start_back_porch(self):
self.state = ImagePlayer.SLIDE_OUT
self.porch_counter = self.porch / self.tick
if self.transition == "cut":
# just keep displaying the slide full brightness.
# No need for porch but used for symmetry
pass
elif self.transition == "fade":
#experimental start full and decrease brightness (controlled by porch_counter).
self._display_image()
elif self.transition == "slide":
#experimental, start in middle and move to right (controlled by porch_counter)
if self.pil_image <> None:
self.tk_img = PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x,
self.centre_y,
image=self.tk_img,
anchor=CENTER)
elif self.transition == "crop":
#experimental, start in middle and crop from right (controlled by porch_counter)
if self.pil_image <> None:
self.tk_img = PIL.ImageTk.PhotoImage(self.pil_image)
self.drawn = self.canvas.create_image(self.centre_x,
self.centre_y,
image=self.tk_img,
anchor=CENTER)
self._tick_timer = self.canvas.after(self.tick, self._do_back_porch)
def _do_back_porch(self):
if self.quit_signal == True:
self._end('normal', 'user quit')
else:
self.porch_counter = self.porch_counter - 1
self._display_image()
if self.porch_counter == 0:
self._end('normal', 'finished')
else:
self._tick_timer = self.canvas.after(self.tick,
self._do_back_porch)
def _display_image(self):
if self.transition == "cut":
pass
# all the methods below have incorrect code !!!
elif self.transition == "fade":
if self.pil_image <> None:
self.enh = PIL.ImageEnhance.Brightness(self.pil_image)
prop = float(self.porch_counter) / float(20) #????????
self.pil_img = self.enh.enhance(prop)
self.tk_img = PIL.ImageTk.PhotoImage(self.pil_img)
self.drawn = self.canvas.create_image(self.centre_x,
self.centre_y,
image=self.tk_img,
anchor=CENTER)
elif self.transition == "slide":
if self.pil_image <> None:
self.canvas.move(self.drawn, 5, 0)
elif self.transition == "crop":
if self.pil_image <> None:
self.crop = 10 * self.porch_counter
self.pil_img = self.pil_image.crop(
(0, 0, 1000 - self.crop, 1080))
self.tk_img = PIL.ImageTk.PhotoImage(self.pil_img)
self.drawn = self.canvas.create_image(self.centre_x,
self.centre_y,
image=self.tk_img,
anchor=CENTER)
# display message if image is not available
if self.pil_image == None:
self.canvas.create_text(self.centre_x,
self.centre_y,
text=self.resource('imageplayer', 'm02'),
fill='white',
font='arial 30 bold')
# display instructions if enabled
if self.enable_menu == True:
self.canvas.create_text(self.centre_x,
int(self.canvas['height']) -
int(self.cd['hint-y']),
text=self.cd['hint-text'],
fill=self.cd['hint-colour'],
font=self.cd['hint-font'])
# display show text if enabled
if self.cd['show-text'] <> '':
self.canvas.create_text(int(self.cd['show-text-x']),
int(self.cd['show-text-y']),
anchor=NW,
text=self.cd['show-text'],
fill=self.cd['show-text-colour'],
font=self.cd['show-text-font'])
# display track text if enabled
if self.track_params['track-text'] <> '':
self.canvas.create_text(
int(self.track_params['track-text-x']),
int(self.track_params['track-text-y']),
anchor=NW,
text=self.track_params['track-text'],
fill=self.track_params['track-text-colour'],
font=self.track_params['track-text-font'])
self.canvas.update_idletasks()
class ShowList:
"""
manages a list of show and the show selected from the showlist
"""
IMAGE_FILES=('Image files', '.gif','.GIF','.jpg','.JPG','.jpeg','.JPEG')
VIDEO_FILES=('video files','.mp4','.MP4','.mkv','.MKV','.avi','.AVI')
AUDIO_FILES=('audio files','.mp3','.MP3')
def __init__(self):
self.mon=Monitor()
self.mon.on()
self.clear()
def clear(self):
self._shows = [] #MediaList, stored as a list of dicts
self._num_shows=0
self._selected_show_index=-1 # index of currently selected show
def print_list(self):
print self._shows
def get_dur(self):
return self._shows[1]["duration"]
def assign_dur(self, duration):
self._shows[1]["duration"] = duration
#return for debugging purposes
return self._shows[1]["duration"]
def length(self):
return self._num_shows
def at_end(self):
if self._selected_show_index==self._num_shows-1:
return True
else:
return False
def at_start(self):
if self._selected_show_index==0:
return True
else:
return False
def show_is_selected(self):
if self._selected_show_index>=0:
return True
else:
return False
def selected_show_index(self):
return self._selected_show_index
def shows(self):
return self._shows
def show(self,index):
return self._shows[index]
def selected_show(self):
"""returns a dictionary containing all fields in the selected show """
return self._selected_show
def append(self, show_dict):
"""appends a show dictionary to the end of the showlist store"""
self._shows.append(copy.deepcopy(show_dict))
self._num_shows+=1
def copy(self,show_dict,new_name):
show_to_copy=copy.deepcopy(show_dict)
show_to_copy['show-ref']=new_name
show_to_copy['title']=new_name
return show_to_copy
def remove(self,index):
self._shows.pop(index)
self._num_shows-=1
# deselect any show, saves worrying about whether index needs changing
self._selected_show_index=-1
def replace(self,index,replacement):
self._shows[index]= replacement
def first(self):
self.select(0)
def next(self):
if self.length()>0:
if self._selected_show_index== self.length()-1:
index=0
else:
index= self._selected_show_index+1
self.select(index)
def previous(self):
if self.length()>0:
if self._selected_show_index == 0:
index=self.length()-1
else:
index= self._selected_show_index-1
self.select(index)
def index_of_show(self,wanted_show):
index = 0
for show in self._shows:
if show['show-ref']==wanted_show:
return index
index +=1
return -1
def select(self, index):
"""
user clicks on a show in the Shows list so try and select it.
"""
# needs forgiving int for possible tkinter upgrade
self._selected_show_index=index
self._selected_show=self._shows[index]
def open_json(self,filename):
"""
opens a saved showlistlist
showlists are stored in files as json arrays within a object 'shows'.
shows are stored internally as a list of dictionaries in self._shows
"""
if filename !="" and os.path.exists(filename):
ifile = open(filename, 'rb')
sdict= json.load(ifile)
ifile.close()
self._shows=sdict['shows']
if 'issue' in sdict:
self.issue= sdict['issue']
else:
self.issue="1.0"
self._num_shows=len(self._shows)
self._selected_show_index=-1
return True
else:
return False
def sissue(self):
return self.issue
def save_list(self,filename):
""" save a showlist """
if filename=="":
return False
if os.name=='nt':
filename = string.replace(filename,'/','\\')
else:
filename = string.replace(filename,'\\','/')
dic={'issue':self.issue,'shows':self._shows}
ofile = open(filename, "wb")
json.dump(dic,ofile,sort_keys=True,indent=1)
ofile.close()
return
# =====================================================
# old stuff
def open_cfg(self,filename):
"""
opens a saved showlist
each show is a section of a confiParser file
shows are stored as a list of dictionaries in self._shows
"""
if filename !="" and os.path.exists(filename):
self.config=ConfigParser.ConfigParser()
self.config.read(filename)
self._shows=[]
for section in self.sections():
self._shows.append(self.dictionary_of(section))
self._num_shows=len(self._shows)
self._selected_show_index=-1
return True
else:
return False
def has_show(self,section):
return self.config.has_section(section)
def sections(self):
return self.config.sections()
def get(self,section,item):
return self.config.get(section,item,0)
def dictionary_of(self,section):
return dict(self.config.items(section))
class PiPresents:
def __init__(self):
self.pipresents_issue="1.1"
StopWatch.global_enable=False
#****************************************
# INTERPRET COMMAND LINE
# ***************************************
self.options=command_options()
pp_dir=sys.path[0]
if not os.path.exists(pp_dir+"/pipresents.py"):
tkMessageBox.showwarning("Pi Presents","Bad Application Directory")
exit()
#Initialise logging
Monitor.log_path=pp_dir
self.mon=Monitor()
self.mon.on()
if self.options['debug']==True:
Monitor.global_enable=True
else:
Monitor.global_enable=False
self.mon.log (self, "Pi Presents is starting")
#self.show=None
# create profile for pp_editor test files if already not there.
if not os.path.exists(pp_dir+"/pp_home/pp_profiles/pp_editor"):
self.mon.log(self,"Making pp_editor directory")
os.makedirs(pp_dir+"/pp_home/pp_profiles/pp_editor")
#profile path from -p option
if self.options['profile']<>"":
self.pp_profile_path="/pp_profiles/"+self.options['profile']
else:
self.pp_profile_path = "/pp_profiles/pp_profile"
#get directory containing pp_home from the command,
if self.options['home'] =="":
home = os.path.expanduser('~')+ os.sep+"pp_home"
else:
home = self.options['home'] + os.sep+ "pp_home"
#check if pp_home exists.
# try for 10 seconds to allow usb stick to automount
# fall back to pipresents/pp_home
self.pp_home=pp_dir+"/pp_home"
for i in range (1, 10):
self.mon.log(self,"Trying pp_home at: " + home + " " + str(i))
if os.path.exists(home):
self.mon.log(self,"Using pp_home at: " + home)
self.pp_home=home
break
time.sleep (1)
#check profile exists, if not default to error profile inside pipresents
self.pp_profile=self.pp_home+self.pp_profile_path
if not os.path.exists(self.pp_profile):
self.pp_profile=pp_dir+"/pp_home/pp_profiles/pp_profile"
if self.options['verify']==True:
val =Validator()
if val.validate_profile(None,self.pp_home,self.pp_profile,self.pipresents_issue,False) == False:
tkMessageBox.showwarning("Pi Presents","Validation Failed")
exit()
# open the resources
self.rr=ResourceReader()
# read the file, done once for all the other classes to use.
self.rr.read(pp_dir,self.pp_home)
#initialise the showlists and read the showlists
self.showlist=ShowList()
self.showlist_file= self.pp_profile+ "/pp_showlist.json"
if os.path.exists(self.showlist_file):
self.showlist.open_json(self.showlist_file)
else:
self.mon.err(self,"showlist not found at "+self.showlist_file)
self._end('error','showlist not found')
if float(self.showlist.sissue())<>float(self.pipresents_issue):
self.mon.err(self,"Version of profile " + self.showlist.sissue() + " is not same as Pi Presents, must exit")
self._end('error','wrong version of profile')
# get the starter show from the showlist
index = self.showlist.index_of_show('start')
if index >=0:
self.showlist.select(index)
self.starter_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show [start] not found in showlist")
self._end('error','start show not found')
# ********************
# SET UP THE GUI
# ********************
#turn off the screenblanking and saver
if self.options['noblank']==True:
call(["xset","s", "off"])
call(["xset","s", "-dpms"])
# control display of window decorations
if self.options['fullscreen']<>"partial":
self.root = Tk(className="fspipresents")
os.system('unclutter &')
else:
self.root = Tk(className="pipresents")
self.title='Pi Presents - '+ self.pp_profile
self.icon_text= 'Pi Presents'
self.root.title(self.title)
self.root.iconname(self.icon_text)
self.root.config(bg='black')
# get size of the screen
self.screen_width = self.root.winfo_screenwidth()
self.screen_height = self.root.winfo_screenheight()
# set window dimensions
self.window_height=self.screen_height
self.window_width=self.screen_width
self.window_x=0
self.window_y=0
if self.options['fullscreen']<>"partial":
bar=self.options['fullscreen']
# allow just 2 pixels for the hidden taskbar
if bar in ('left','right'):
self.window_width=self.screen_width-2
else:
self.window_height=self.screen_height-2
if bar =="left":
self.window_x=2
if bar =="top":
self.window_y=2
self.root.geometry("%dx%d%+d%+d" % (self.window_width,self.window_height,self.window_x,self.window_y))
self.root.attributes('-zoomed','1')
else:
self.window_width=self.screen_width-200
self.window_height=self.screen_height-200
self.window_x=50
self.root.geometry("%dx%d%+d%+d" % (self.window_width,self.window_height,self.window_x,self.window_y))
#canvas covers the whole window
self.canvas_height=self.window_height
self.canvas_width=self.window_width
# make sure focus is set.
self.root.focus_set()
#define response to main window closing.
self.root.protocol ("WM_DELETE_WINDOW", self.on_break_key)
# Always use CTRL-Break key to close the program as a get out of jail
self.root.bind("<Break>",self.e_on_break_key)
#pass all other keys along to 'shows' and hence to 'players'
self.root.bind("<Escape>", self._escape_pressed)
self.root.bind("<Up>", self._up_pressed)
self.root.bind("<Down>", self._down_pressed)
self.root.bind("<Return>", self._return_pressed)
self.root.bind("<space>", self._pause_pressed)
self.root.bind("p", self._pause_pressed)
#setup a canvas onto which will be drawn the images or text
self.canvas = Canvas(self.root, bg='black')
self.canvas.config(height=self.canvas_height, width=self.canvas_width)
#self.canvas.grid(row=1,columnspan=2)
self.canvas.pack()
# make sure focus is set on canvas.
self.canvas.focus_set()
# ****************************************
# INITIALISE THE APPLICATION AND START
# ****************************************
self.shutdown_required=False
#kick off GPIO if enabled by command line option
if self.options['gpio']==True:
from pp_buttons import Buttons
# initialise the buttons connected to GPIO
self.Buttons=Buttons
self.buttons = Buttons(self.root,20,self.button_pressed)
self.buttons.poll()
# kick off the initial show
self.show=None
# get the start show from the showlist
index = self.showlist.index_of_show(self.starter_show['start-show'])
if index >=0:
self.showlist.select(index)
self.start_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ self.starter_show['start-show'])
self._end('error','show not found in showlist')
if self.start_show['type']=="mediashow":
self.show= MediaShow(self.start_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.show.play(self._end_play_show,top=True,command='nil')
self.root.mainloop( )
elif self.start_show['type']=="menu":
self.show= MenuShow(self.start_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.show.play(self._end_play_show,top=True,command='nil')
self.root.mainloop( )
elif self.start_show['type']=="liveshow":
self.show= LiveShow(self.start_show,
self.canvas,
self.showlist,
self.pp_home,
self.pp_profile)
self.show.play(self._end_play_show,top=True,command='nil')
self.root.mainloop( )
else:
self.mon.err(self,"unknown mediashow type in start show - "+ self.start_show['type'])
self._end('error','unknown mediashow type')
def _end_play_show(self,reason,message):
self.mon.log(self,"Returned to piresents with reason: " + reason +" and message " + message)
self._end(reason,message)
def _end(self,reason,message):
self.mon.log(self,"Pi Presents ending with message: " + message)
self.show=None
if reason=='error':
self.mon.log(self, "exiting because of error")
self.tidy_up()
exit()
if reason=='killed':
self.mon.log(self,"kill received - exiting")
self.on_kill_callback()
else:
# should never be here or fatal error
self.mon.log(self, "exiting because invalid end reasosn")
self.tidy_up()
exit()
# *********************
# EXIT APP
# *********************
# kill or error
def terminate(self,reason):
if self.shower<>None:
self.mon.log(self,"sent terminate to shower")
self.shower.terminate(reason)
else:
self._end(reason,message)
def tidy_up(self):
#turn screen blanking back on
if self.options['noblank']==True:
call(["xset","s", "on"])
call(["xset","s", "+dpms"])
if self.options['gpio']==True:
self.buttons.kill()
#close logging files
self.mon.finish()
def on_kill_callback(self):
self.tidy_up()
if self.shutdown_required==True:
call(['sudo', 'shutdown', '-h', '-t 5','now'])
else:
exit()
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
self.terminate("error")
else:
return value
# *********************
# Key and button presses
# ********************
def shutdown_pressed(self):
self.root.after(5000,self.on_shutdown_delay)
def on_shutdown_delay(self):
if self.buttons.is_pressed(self.Buttons.SHUTDOWN):
self.shutdown_required=True
self.on_break_key()
def button_pressed(self,index,button,edge):
self.mon.log(self, "Button Pressed: "+button)
if button=="shutdown":
self.shutdown_pressed()
else:
if self.show<>None:
self.show.button_pressed(button,edge)
# key presses
def _escape_pressed(self,event): self._key_pressed("escape")
def _up_pressed(self,event): self._key_pressed("up")
def _down_pressed(self,event): self._key_pressed("down")
def _return_pressed(self,event): self._key_pressed("return")
def _pause_pressed(self,event): self._key_pressed("p")
def _key_pressed(self,key_name):
self.mon.log(self, "Key Pressed: "+ key_name)
# if a show is running pass the key to it.
if self.show<>None:
self.show.key_pressed(key_name)
def on_break_key(self):
self.mon.log(self, "kill received from user")
#terminate any running shows and players
if self.show<>None:
self.mon.log(self,"kill sent to show")
self.show.terminate('killed')
def e_on_break_key(self,event):
self.on_break_key()
class MediaShow:
# *******************
# External interface
# ********************
def __init__(self,
show_params,
root,
canvas,
showlist,
pp_dir,
pp_home,
pp_profile):
""" canvas - the canvas that the menu is to be written on
show - the dictionary fo the show to be played
pp_home - Pi presents data_home directory
pp_profile - Pi presents profile directory
"""
self.mon=Monitor()
self.mon.on()
#instantiate arguments
self.show_params =show_params
self.showlist=showlist
self.root=root
self.canvas=canvas
self.pp_dir=pp_dir
self.pp_home=pp_home
self.pp_profile=pp_profile
# open resources
self.rr=ResourceReader()
# Init variables
self.player=None
self.shower=None
self.poll_for_interval_timer=None
self.poll_for_continue_timer=None
self.waiting_for_interval=False
self.interval_timer=None
self.duration_timer=None
self.error=False
self.interval_timer_signal=False
self.end_trigger_signal=False
self.end_mediashow_signal=False
self.next_track_signal=False
self.previous_track_signal=False
self.play_child_signal = False
self.req_next='nil'
#create and instance of TimeOfDay scheduler so we can add events
self.tod=TimeOfDay()
self.state='closed'
def play(self,show_id,end_callback,show_ready_callback, top=False,command='nil'):
""" displays the mediashow
end_callback - function to be called when the menu exits
ready_callback - callback when menu is ready to display (not used)
top is True when the show is top level (run from [start])
"""
#instantiate the arguments
self.show_id=show_id
self.end_callback=end_callback
self.show_ready_callback=show_ready_callback
self.top=top
self.command=command
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Starting show")
# check data files are available.
self.media_file = self.pp_profile + "/" + self.show_params['medialist']
if not os.path.exists(self.media_file):
self.mon.err(self,"Medialist file not found: "+ self.media_file)
self.end('error',"Medialist file not found")
#create a medialist for the mediashow and read it.
self.medialist=MediaList(self.show_params['sequence'])
if self.medialist.open_list(self.media_file,self.showlist.sissue())==False:
self.mon.err(self,"Version of medialist different to Pi Presents")
self.end('error',"Version of medialist different to Pi Presents")
#get controls for this show if top level
controlsmanager=ControlsManager()
if self.top==True:
self.controls_list=controlsmanager.default_controls()
# and merge in controls from profile
self.controls_list=controlsmanager.merge_show_controls(self.controls_list,self.show_params['controls'])
#set up the time of day triggers for the show
if self.show_params['trigger']in('time','time-quiet'):
error_text=self.tod.add_times(self.show_params['trigger-input'],id(self),self.tod_start_callback,self.show_params['trigger'])
if error_text<>'':
self.mon.err(self,error_text)
self.end('error',error_text)
if self.show_params['trigger-end']=='time':
# print self.show_params['trigger-end-time']
error_text=self.tod.add_times(self.show_params['trigger-end-time'],id(self),self.tod_end_callback,'n/a')
if error_text<>'':
self.mon.err(self,error_text)
self.end('error',error_text)
if self.show_params['trigger-end']=='duration':
error_text=self.calculate_duration(self.show_params['trigger-end-time'])
if error_text<>'':
self.mon.err(self,error_text)
self.end('error',error_text)
self.state='closed'
self.egg_timer=None
self.wait_for_trigger()
# ********************************
# Respond to external events
# ********************************
#stop received from another concurrent show
def managed_stop(self):
# if next lower show is running pass down to stop the show and lower level
if self.shower<>None:
self.shower.managed_stop()
else:
#stop the show if not at top
self.end_mediashow_signal=True
# and if track is runing stop that first
if self.player<>None:
self.player.input_pressed('stop')
# kill or error
def terminate(self,reason):
if self.shower<>None:
self.shower.terminate(reason)
elif self.player<>None:
self.player.terminate(reason)
else:
self.end(reason,' terminated with no shower or player to terminate')
# respond to input events
def input_pressed(self,symbol,edge,source):
self.mon.log(self, self.show_params['show-ref']+ ' '+ str(self.show_id)+": received input: " + symbol)
# check symbol against mediashow triggers, triggers can be used at top or lower level
# and not affected by disable-controls
if self.state=='waiting' and self.show_params['trigger'] in ('input','input-quiet')and symbol == self.show_params['trigger-input']:
self.start_show()
elif self.state=='playing' and self.show_params['trigger-next']=='input' and symbol == self.show_params['next-input']:
self.next()
# internal functions are triggered only when disable-controls is 'no'
if self.show_params['disable-controls']=='yes':
return
# if at top convert symbolic name to operation otherwise lower down we have received an operation
# look through list of standard symbols to find match (symbolic-name, function name) operation =lookup (symbol
if self.top==True:
operation=self.lookup_control(symbol,self.controls_list)
else:
operation=symbol
# print 'operation',operation
self.do_operation(operation,edge,source)
#service the standard inputs for this show
def do_operation(self,operation,edge,source):
if self.shower<>None:
# if next lower show is running pass down to stop the show and lower level
self.shower.input_pressed(operation,edge,source)
else:
# control this show and its tracks
# print 'operation',operation
if operation=='stop':
if self.top == False:
# not at top so stop the current show
self.end_mediashow_signal=True
# and if a track is running stop that first
if self.player<>None:
self.player.input_pressed('stop')
else:
# top = True, just stop track if running
if self.player<>None:
self.player.input_pressed('stop')
elif operation in ('up','down'):
#if playing rather than waiting use keys for next or previous
if operation=='up' and self.state=='playing':
self.previous()
else:
self.next()
elif operation=='play':
# use 'play' to start child if state=playing or to trigger the show if waiting for trigger
if self.state=='playing':
if self.show_params['has-child']=='yes':
self.play_child_signal=True
self.child_track_ref='pp-child-show'
# and stop the current track if its running
if self.player<>None:
self.player.input_pressed('stop')
else:
if self.state=='waiting':
self.start_show()
elif operation == 'pause':
if self.player<>None:
self.player.input_pressed(operation)
#if the operation is omxplayer or mplayer runtime control then pass it to player if running
elif operation[0:4]=='omx-' or operation[0:6]=='mplay-'or operation[0:5]=='uzbl-':
if self.player<>None:
self.player.input_pressed(operation)
def lookup_control(self,symbol,controls_list):
for control in controls_list:
if symbol == control[0]:
return control[1]
return ''
# ***************************
# Show sequencer
# ***************************
def end_interval_timer(self):
self.interval_timer_signal=True
# callback from time of day scheduler
def tod_start_callback(self):
if self.state=='waiting' and self.show_params['trigger']in('time','time-quiet'):
self.start_show()
def tod_end_callback(self):
if self.state=='playing' and self.show_params['trigger-end'] in ('time','duration'):
self.end_trigger_signal=True
if self.shower<>None:
self.shower.input_pressed('stop')
elif self.player<>None:
self.player.input_pressed('stop')
def stop(self,message):
self.end_mediashow_signal=True
if self.interval_timer<>None:
self.canvas.after_cancel(self.interval_timer)
def next(self):
# stop track if running and set signal
self.next_track_signal=True
if self.shower<>None:
self.shower.input_pressed("stop")
else:
if self.player<>None:
self.player.input_pressed("stop")
def previous(self):
self.previous_track_signal=True
if self.shower<>None:
self.shower.input_pressed("stop")
else:
if self.player<>None:
self.player.input_pressed("stop")
# wait for trigger sets the state to waiting so that events can do a start show.
def wait_for_trigger(self):
self.state='waiting'
if self.show_ready_callback<>None:
self.show_ready_callback()
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Waiting for trigger: "+ self.show_params['trigger'])
if self.show_params['trigger']=="input":
# blank screen waiting for trigger if auto, otherwise display something
if self.show_params['progress']=="manual":
text= self.resource('mediashow','m01')
else:
text= self.resource('mediashow','m02')
self.display_message(self.canvas,'text',text,0,self.start_show)
elif self.show_params['trigger']=="input-quiet":
# blank screen waiting for trigger
text = self.resource('mediashow','m10')
self.display_message(self.canvas,'text',text,0,self.start_show)
pass
elif self.show_params['trigger'] in ('time','time-quiet'):
# show next show notice
quiet=3
# if next show is this one display text
next_show=self.tod.next_event_time()
if next_show[quiet]==False:
if next_show[1]=='tomorrow':
text = self.resource('mediashow','m09')
else:
text = self.resource('mediashow','m08')
text=text.replace('%tt',next_show[0])
self.display_message(self.canvas,'text',text,0,self.start_show)
elif self.show_params['trigger']=="start":
self.start_show()
else:
self.mon.err(self,"Unknown trigger: "+ self.show_params['trigger'])
self.end('error',"Unknown trigger type")
def start_show(self):
self.state='playing'
self.direction='forward'
# self.canvas.delete(ALL)
# start interval timer
if self.show_params['repeat']=="interval" and self.show_params['repeat-interval']<>0:
self.interval_timer_signal=False
self.interval_timer=self.canvas.after(int(self.show_params['repeat-interval'])*1000,self.end_interval_timer)
# start duration timer
if self.show_params['trigger-end']=='duration':
# print 'set alarm ', self.duration
self.duration_timer = self.canvas.after(self.duration*1000,self.tod_end_callback)
# and play the first track unless commanded otherwise
if self.command=='backward':
self.medialist.finish()
else:
self.medialist.start()
self.play_selected_track(self.medialist.selected_track())
def what_next(self):
self.direction='forward'
# end of show trigger caused by tod
if self.end_trigger_signal==True:
self.end_trigger_signal=False
if self.top==True:
self.state='waiting'
self.wait_for_trigger()
else:
# not at top so stop the show
self.end('normal','sub-show end time trigger')
# user wants to end, wait for any shows or tracks to have ended then end show
# probalby will get here with end_m set when player and shower has finished
elif self.end_mediashow_signal==True:
if self.player==None and self.shower==None:
self.end_mediashow_signal=False
self.end('normal',"show ended by user")
#returning from a subshow needing to move onward
elif self.req_next=='do-next':
self.req_next='nil'
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
#returning from a subshow needing to move backward
elif self.req_next=='do-previous':
self.req_next='nil'
self.direction='backward'
self.medialist.previous(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# user wants to play child
elif self.play_child_signal == True:
self.play_child_signal=False
index = self.medialist.index_of_track(self.child_track_ref)
if index >=0:
#don't use select the track as need to preserve mediashow sequence.
child_track=self.medialist.track(index)
self.display_eggtimer(self.resource('mediashow','m07'))
self.play_selected_track(child_track)
else:
self.mon.err(self,"Child show not found in medialist: "+ self.show_params['pp-child-show'])
self.end('error',"child show not found in medialist")
# skip to next track on user input
elif self.next_track_signal==True:
self.next_track_signal=False
if self.medialist.at_end()==True:
if self.show_params['sequence']=="ordered" and self.show_params['repeat']=='oneshot' and self.top==False:
self.end('do-next',"Return from Sub Show")
elif self.show_params['sequence']=="ordered" and self.show_params['repeat']=='single-run' and self.top==False:
self.end('do-next',"Return from Sub Show")
else:
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
else:
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# skip to previous track on user input
elif self.previous_track_signal==True:
self.previous_track_signal=False
self.direction='backward'
if self.medialist.at_start()==True:
if self.show_params['sequence']=="ordered" and self.show_params['repeat']=='oneshot' and self.top==False:
self.end('do-previous',"Return from Sub Show")
elif self.show_params['sequence']=="ordered" and self.show_params['repeat']=='single-run' and self.top==False:
self.end('do-previous',"Return from Sub Show")
else:
self.medialist.previous(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
else:
self.medialist.previous(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# track is finished and we are on auto
elif self.show_params['progress']=="auto":
if self.medialist.at_end()==True:
# oneshot
if self.show_params['repeat']=='oneshot' and self.top==False:
self.end('normal',"End of Oneshot in subshow")
elif self.show_params['sequence']=="ordered" and self.show_params['repeat']=='oneshot' and self.top==True:
self.wait_for_trigger()
# single run
elif self.show_params['repeat']=='single-run' and self.top==True:
self.end('normal',"End of Single Run")
elif self.show_params['repeat']=='single-run' and self.top==False:
self.end('do-next',"End of single run - Return from Sub Show")
# repeating and waiting to restart
elif self.waiting_for_interval==True:
if self.interval_timer_signal==True:
self.interval_timer_signal=False
self.waiting_for_interval=False
self.start_show()
else:
self.poll_for_interval_timer=self.canvas.after(1000,self.what_next)
elif self.show_params['repeat']=='interval' and int(self.show_params['repeat-interval'])>0:
self.waiting_for_interval=True
self.poll_for_interval_timer=self.canvas.after(1000,self.what_next)
#elif self.show_params['sequence']=="ordered" and self.show_params['repeat']=='interval' and int(self.show_params['repeat-interval'])==0:
elif self.show_params['repeat']=='interval' and int(self.show_params['repeat-interval'])==0:
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# shuffling so there is no end condition
elif self.show_params['sequence']=="shuffle":
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
else:
self.mon.err(self,"Unhandled playing event: "+self.show_params['sequence'] +' with ' + self.show_params['repeat']+" of "+ self.show_params['repeat-interval'])
self.end('error',"Unhandled playing event")
else:
self.medialist.next(self.show_params['sequence'])
self.play_selected_track(self.medialist.selected_track())
# track has finished and we are on manual progress
elif self.show_params['progress']=="manual":
self.delete_eggtimer()
self.canvas.delete('pp-content')
if self.show_params['trigger-next']=='input':
self.display_eggtimer(self.resource('mediashow','m03'))
self.poll_for_continue_timer=self.canvas.after(2000,self.what_next)
else:
#unhandled state
self.mon.err(self,"Unhandled playing event: ")
self.end('error',"Unhandled playing event")
# ***************************
# Dispatching to Players/Shows
# ***************************
def ready_callback(self):
self.delete_eggtimer()
def play_selected_track(self,selected_track):
""" selects the appropriate player from type field of the medialist and computes
the parameters for that type
selected track is a dictionary for the track/show
"""
self.delete_eggtimer()
if self.show_params['progress']=="manual":
self.display_eggtimer(self.resource('mediashow','m04'))
# is menu required
if self.show_params['has-child']=="yes":
self.enable_child=True
else:
self.enable_child=False
#dispatch track by type
self.player=None
self.shower=None
track_type = selected_track['type']
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Track type is: "+ track_type)
if track_type=="video":
# create a videoplayer
track_file=self.complete_path(selected_track)
self.player=VideoPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type=="audio":
# create a audioplayer
track_file=self.complete_path(selected_track)
self.player=AudioPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type=="web":
# create a browser
track_file=self.complete_path(selected_track)
self.player=BrowserPlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type=="image":
track_file=self.complete_path(selected_track)
# images played from menus don't have children
self.player=ImagePlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(track_file,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child)
elif track_type=="message":
# bit odd because MessagePlayer is used internally to display text.
text=selected_track['text']
self.player=MessagePlayer(self.show_id,self.root,self.canvas,self.show_params,selected_track,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(text,
self.showlist,
self.end_player,
self.ready_callback,
enable_menu=self.enable_child
)
elif track_type=="show":
# get the show from the showlist
index = self.showlist.index_of_show(selected_track['sub-show'])
if index >=0:
self.showlist.select(index)
selected_show=self.showlist.selected_show()
else:
self.mon.err(self,"Show not found in showlist: "+ selected_track['sub-show'])
self.end('error',"Unknown show")
if selected_show['type']=="mediashow":
self.shower= MediaShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
print "Starting MediaShow: {0}".format(selected_track['sub-show'])
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command=self.direction)
elif selected_show['type']=="liveshow":
self.shower= LiveShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="radiobuttonshow":
self.shower= RadioButtonShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="hyperlinkshow":
self.shower= HyperlinkShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
elif selected_show['type']=="menu":
self.shower= MenuShow(selected_show,
self.root,
self.canvas,
self.showlist,
self.pp_dir,
self.pp_home,
self.pp_profile)
self.shower.play(self.show_id,self.end_shower,self.ready_callback,top=False,command='nil')
else:
self.mon.err(self,"Unknown Show Type: "+ selected_show['type'])
self.end('error'"Unknown show type")
else:
self.mon.err(self,"Unknown Track Type: "+ track_type)
self.end('error',"Unknown track type")
def end_player(self,reason,message):
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Returned from player with message: "+ message)
self.player=None
self.req_next='nil'
if reason in("killed","error"):
self.end(reason,message)
else:
# elif>else move to what-next?
if self.show_params['progress']=="manual":
self.display_eggtimer(self.resource('mediashow','m05'))
self.req_next=reason
self.what_next()
else:
self.req_next=reason
self.what_next()
def end_shower(self,show_id,reason,message):
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Returned from shower with message: "+ message)
self.shower=None
self.req_next='nil'
if reason in("killed","error"):
self.end(reason,message)
else:
if self.show_params['progress']=="manual":
self.display_eggtimer(self.resource('mediashow','m06'))
self.req_next=reason
self.what_next()
else:
self.req_next=reason
self.what_next()
# ***************************
# end of show
# ***************************
def end(self,reason,message):
self.end_mediashow_signal=False
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Ending Mediashow")
self.tidy_up()
self.end_callback(self.show_id,reason,message)
self=None
return
def tidy_up(self):
#clear outstanding time of day events for this show
# self.tod.clear_times_list(id(self))
if self.poll_for_continue_timer<>None:
self.canvas.after_cancel(self.poll_for_continue_timer)
self.poll_for_continue_timer=None
if self.poll_for_interval_timer<>None:
self.canvas.after_cancel(self.poll_for_interval_timer)
self.poll_for_interval_timer=None
if self.interval_timer<>None:
self.canvas.after_cancel(self.interval_timer)
self.interval_timer=None
if self.duration_timer<>None:
self.canvas.after_cancel(self.duration_timer)
self.duration_timer=None
# ***************************
# displaying things
# ***************************
def display_eggtimer(self,text):
self.canvas.create_text(int(self.canvas['width'])/2,
int(self.canvas['height'])/2,
text= text,
fill='white',
font="Helvetica 20 bold",
tag='pp-eggtimer')
self.canvas.update_idletasks( )
def delete_eggtimer(self):
self.canvas.delete('pp-eggtimer')
self.canvas.update_idletasks( )
# used to display internal messages in situations where a medialist entry could not be used.
def display_message(self,canvas,source,content,duration,_display_message_callback):
self.display_message_callback=_display_message_callback
tp={'duration':duration,'message-colour':'white','message-font':'Helvetica 20 bold','background-colour':'',
'message-justify':'left','background-image':'','show-control-begin':'','show-control-end':'',
'animate-begin':'','animate-clear':'','animate-end':'','message-x':'','message-y':'',
'display-show-background':'no','display-show-text':'no','show-text':'','track-text':'',
'plugin':''}
self.player=MessagePlayer(self.show_id,self.root,canvas,tp,tp,self.pp_dir,self.pp_home,self.pp_profile)
self.player.play(content,self.showlist,self.display_message_end,None,False)
def display_message_end(self,reason,message):
self.player=None
if reason in ('error','killed'):
self.end(reason,message)
else:
self.display_message_callback()
# ***************************
# utilities
# ***************************
def calculate_duration(self,line):
fields=line.split(':')
if len(fields)==1:
secs=fields[0]
minutes='0'
hours='0'
if len(fields)==2:
secs=fields[1]
minutes=fields[0]
hours='0'
if len(fields)==3:
secs=fields[2]
minutes=fields[1]
hours=fields[0]
self.duration=3600*long(hours)+60*long(minutes)+long(secs)
return ''
def resource(self,section,item):
value=self.rr.get(section,item)
if value==False:
self.mon.err(self, "resource: "+section +': '+ item + " not found" )
self.terminate("error")
else:
return value
def complete_path(self,selected_track):
# complete path of the filename of the selected entry
track_file = selected_track['location']
if track_file<>'' and track_file[0]=="+":
track_file=self.pp_home+track_file[1:]
self.mon.log(self,self.show_params['show-ref']+ ' '+ str(self.show_id)+ ": Track to play is: "+ track_file)
return track_file
class EditItem(tkSimpleDialog.Dialog):
def __init__(self, parent, title, field_content, record_specs, field_specs,
show_refs, initial_media_dir, pp_home_dir, initial_tab):
self.mon = Monitor()
self.mon.on()
#save the extra arg to instance variable
self.field_content = field_content # dictionary - the track parameters to be edited
self.record_specs = record_specs # list of field names and seps/tabs in the order that they appear
self.field_specs = field_specs # disctionary of specs referenced by field name
self.show_refs = show_refs
self.show_refs.append('')
self.initial_media_dir = initial_media_dir
self.pp_home_dir = pp_home_dir
self.initial_tab = initial_tab
# list of stringvars from which to get edited values (for optionmenu only??)
self.entries = []
#and call the base class _init_which calls body immeadiately and apply on OK pressed
tkSimpleDialog.Dialog.__init__(self, parent, title)
def body(self, root):
self.root = root
bar = TabBar(root, init_name=self.initial_tab)
self.body_fields(root, bar)
# bar.config(bd=1, relief=RIDGE) # add some border
bar.show()
def body_fields(self, master, bar):
# get fields for this record using the record type in the loaded record
record_fields = self.record_specs[self.field_content['type']]
# init results of building the form
self.tab_row = 1 # row on form
self.fields = [
] # generated by body_fields - list of field objects in record fields order, not for sep or tab
self.field_index = 0 # index to self.fields incremented after each field except tab and sep
self.entries = [
] # generated by body_fields - list of stringvars in record fields order, used option-menus only
# populate the dialog box using the record fields to determine the order
for field in record_fields:
#get list of values where required
values = []
if self.field_specs[field]['shape'] in ("option-menu", 'spinbox'):
if self.field_specs[field]['param'] in ('sub-show',
'start-show',
'controlled-show'):
values = self.show_refs
else:
values = self.field_specs[field]['values']
else:
values = []
# make the entry
obj = self.make_entry(master, self.field_specs[field], values, bar)
if obj <> None:
self.fields.append(obj)
self.field_index += 1
return None # No initial focus
# create an entry in a dialog box
def make_entry(self, master, field_spec, values, bar):
# print 'make row',self.field_index,field_spec['shape']
if field_spec['shape'] == 'tab':
self.current_tab = Tab(master, field_spec['name'])
bar.add(self.current_tab, field_spec['text'])
self.tab_row = 1
return None
elif field_spec['shape'] == 'sep':
Label(self.current_tab, text='', anchor=W).grid(row=self.tab_row,
column=0,
sticky=W)
self.tab_row += 1
return None
else:
# get the name of the field
parameter = field_spec['param']
# print 'content', parameter, self.field_content[field_spec['param']]
# is it in the field content dictionary
if not parameter in self.field_content:
self.mon.log(
self,
"Value for field not found in opened file: " + parameter)
return None
else:
if field_spec['must'] == 'yes':
bg = 'pink'
else:
bg = 'white'
#write the label
Label(self.current_tab, text=field_spec['text'],
anchor=W).grid(row=self.tab_row, column=0, sticky=W)
# make the editable field
if field_spec['shape'] in ('entry', 'colour', 'browse',
'font'):
obj = Entry(self.current_tab,
bg=bg,
width=40,
font='arial 11')
obj.insert(END, self.field_content[field_spec['param']])
elif field_spec['shape'] == 'text':
obj = ScrolledText(self.current_tab,
bg=bg,
height=8,
width=40,
font='arial 11')
obj.insert(END, self.field_content[field_spec['param']])
elif field_spec['shape'] == 'spinbox':
obj = Spinbox(self.current_tab,
bg=bg,
values=values,
wrap=True)
obj.insert(END, self.field_content[field_spec['param']])
elif field_spec['shape'] == 'option-menu':
self.option_val = StringVar(self.current_tab)
self.option_val.set(
self.field_content[field_spec['param']])
obj = apply(OptionMenu,
[self.current_tab, self.option_val] + values)
self.entries.append(self.option_val)
else:
self.mon.log(self, "Uknown shape for: " + parameter)
return None
if field_spec['read-only'] == 'yes':
obj.config(state="readonly", bg='dark grey')
obj.grid(row=self.tab_row, column=1, sticky=W)
#display buttons where required
if field_spec['shape'] == 'browse':
but = Button(self.current_tab,
width=1,
height=1,
bg='dark grey',
command=(lambda o=obj: self.browse(o)))
but.grid(row=self.tab_row, column=2, sticky=W)
elif field_spec['shape'] == 'colour':
but = Button(self.current_tab,
width=1,
height=1,
bg='dark grey',
command=(lambda o=obj: self.pick_colour(o)))
but.grid(row=self.tab_row, column=2, sticky=W)
elif field_spec['shape'] == 'font':
but = Button(self.current_tab,
width=1,
height=1,
bg='dark grey',
command=(lambda o=obj: self.pick_font(o)))
but.grid(row=self.tab_row, column=2, sticky=W)
self.tab_row += 1
return obj
def apply(self):
# get list of fields in the record in the same order as the form was generated
record_fields = self.record_specs[self.field_content['type']]
field_index = 0 # index to self.fields - not incremented for tab and sep
entry_index = 0 # index of stringvars for option_menu
for field in record_fields:
# get the details of this field
field_spec = self.field_specs[field]
# print 'reading row',field_index,field_spec['shape']
# and get the value
if field_spec['shape'] not in ('sep', 'tab'):
# print field_spec['param']
if field_spec['shape'] == 'text':
self.field_content[
field_spec['param']] = self.fields[field_index].get(
1.0, END).rstrip('\n')
elif field_spec['shape'] == 'option-menu':
self.field_content[
field_spec['param']] = self.entries[entry_index].get()
entry_index += 1
else:
self.field_content[field_spec['param']] = self.fields[
field_index].get().strip()
# print self.field_content[field_spec['param']]
field_index += 1
self.result = True
return self.result
def pick_colour(self, obj):
rgb, colour = askcolor()
#print rgb,colour
if colour <> None:
obj.delete(0, END)
obj.insert(END, colour)
def pick_font(self, obj):
font = askChooseFont(self.root)
print font
if font <> None:
obj.delete(0, END)
obj.insert(END, font)
def browse(self, obj):
# print "initial directory ", self.options.initial_media_dir
file_path = tkFileDialog.askopenfilename(
initialdir=self.initial_media_dir, multiple=False)
if file_path == '':
return
file_path = os.path.normpath(file_path)
#print "file path ", file_path
relpath = os.path.relpath(file_path, self.pp_home_dir)
#print "relative path ",relpath
common = os.path.commonprefix([file_path, self.pp_home_dir])
#print "common ",common
if common.endswith("pp_home") == False:
obj.delete(0, END)
obj.insert(END, file_path)
else:
location = "+" + os.sep + relpath
location = string.replace(location, '\\', '/')
#print "location ",location
obj.delete(0, END)
obj.insert(END, location)
def buttonbox(self):
'''add modified button box.
override standard one to get rid of key bindings which cause trouble with text widget
'''
box = Frame(self)
w = Button(box, text="OK", width=10, command=self.ok, default=ACTIVE)
w.pack(side=LEFT, padx=5, pady=5)
w = Button(box, text="Cancel", width=10, command=self.cancel)
w.pack(side=LEFT, padx=5, pady=5)
#self.bind("<Return>", self.ok)
#self.bind("<Escape>", self.cancel)
box.pack()
