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 Test:
def __init__(self, track, pp_dir, pp_home, show_params, ct):
self.track = track
self.show_params = show_params
self.pp_home = pp_home
self.ct = ct
self.break_from_loop = False
# create and instance of a Tkinter top level window and refer to it as 'my_window'
my_window = Tk()
my_window.title("AudioPlayer Test Harness")
# change the look of the window
my_window.configure(background="grey")
window_width = 1500
window_height = 900
canvas_height = window_height
canvas_width = window_width
# defne response to main window closing
my_window.protocol("WM_DELETE_WINDOW", self.terminate)
my_window.geometry("%dx%d+200+20" % (window_width, window_height))
# Always use CTRL-Break key to close the program as a get out of jail
my_window.bind("<Break>", self.e_terminate)
my_window.bind("s", self.play_event)
my_window.bind("p", self.pause_event)
my_window.bind("q", self.stop_event)
my_window.bind("l", self.loop_event)
my_window.bind("n", self.next_event)
# setup a canvas onto which will not be drawn the video!!
canvas = Canvas(my_window, bg="black")
canvas.config(height=canvas_height, width=canvas_width)
canvas.pack()
# make sure focus is set on canvas.
canvas.focus_set()
self.canvas = canvas
# create an instance of PPIO and start polling
self.ppio = PPIO()
self.ppio.init(pp_dir, pp_home, self.canvas, 50, self.callback)
self.ppio.poll()
my_window.mainloop()
def callback(self, index, name, edge):
print name, edge
# key presses
def e_terminate(self, event):
self.terminate()
def play_event(self, event):
self.vp = AudioPlayer(self.canvas, self.pp_home, self.show_params, self.ct)
self.vp.play(
self.track, self.on_end, self.do_ready, False, self.do_starting, self.do_playing, self.do_finishing
)
# toggles pause
def pause_event(self, event):
self.vp.key_pressed("p")
def stop_event(self, event):
self.break_from_loop = True
self.vp.key_pressed("escape")
def loop_event(self, event):
# just kick off the first track, callback decides what to do next
self.break_from_loop = False
self.vp = AudioPlayer(self.canvas, self.pp_home, self.show_params)
self.vp.play(
self.track, self.what_next, self, do_ready, False, self.do_starting, self.do_playing, self.do_finishing
)
def next_event(self, event):
self.break_from_loop = False
self.vp.key_pressed("down")
def what_next(self, reason, message):
self.vp = None
if reason in ("killed", "error"):
self.end(reason, message)
else:
if self.break_from_loop == True:
self.break_from_loop = False
print "test harness: loop interupted"
return
else:
self.vp = AudioPlayer(self.canvas, self.show_params)
self.vp.play(self.track, self.what_next, self.do_starting, self.do_playing, self.do_finishing)
def on_end(self, reason, message):
self.vp = None
print "Test Class: callback from AudioPlayer says: " + message
if reason in ("killed", "error"):
self.end(reason, message)
else:
return
def do_ready(self):
print "test class message from AudioPlayer: ready to play"
return
def do_starting(self):
print "test class message from AudioPlayer: do starting"
return
def do_playing(self):
# self.display_time.set(self.time_string(self.vp.audio_position))
# print "test class message from AudioPlayer: do playing"
return
def do_finishing(self):
print "test class message from AudioPlayer: do ending"
return
def terminate(self):
if self.vp == None:
self.end("killled", "killled")
else:
self.vp.terminate("killed")
return
def _end(self, reason, message):
self.ppio.terminate()
exit()
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 Test:
def __init__(self, track, pp_dir, pp_home, show_params, ct):
self.track = track
self.show_params = show_params
self.pp_home = pp_home
self.ct = ct
self.break_from_loop = False
# create and instance of a Tkinter top level window and refer to it as 'my_window'
my_window = Tk()
my_window.title("AudioPlayer Test Harness")
# change the look of the window
my_window.configure(background='grey')
window_width = 1500
window_height = 900
canvas_height = window_height
canvas_width = window_width
#defne response to main window closing
my_window.protocol("WM_DELETE_WINDOW", self.terminate)
my_window.geometry("%dx%d+200+20" % (window_width, window_height))
# Always use CTRL-Break key to close the program as a get out of jail
my_window.bind("<Break>", self.e_terminate)
my_window.bind("s", self.play_event)
my_window.bind("p", self.pause_event)
my_window.bind("q", self.stop_event)
my_window.bind("l", self.loop_event)
my_window.bind("n", self.next_event)
#setup a canvas onto which will not be drawn the video!!
canvas = Canvas(my_window, bg='black')
canvas.config(height=canvas_height, width=canvas_width)
canvas.pack()
# make sure focus is set on canvas.
canvas.focus_set()
self.canvas = canvas
#create an instance of PPIO and start polling
self.ppio = PPIO()
self.ppio.init(pp_dir, pp_home, self.canvas, 50, self.callback)
self.ppio.poll()
my_window.mainloop()
def callback(self, index, name, edge):
print name, edge
#key presses
def e_terminate(self, event):
self.terminate()
def play_event(self, event):
self.vp = AudioPlayer(self.canvas, self.pp_home, self.show_params,
self.ct)
self.vp.play(self.track, self.on_end, self.do_ready, False,
self.do_starting, self.do_playing, self.do_finishing)
# toggles pause
def pause_event(self, event):
self.vp.key_pressed('p')
def stop_event(self, event):
self.break_from_loop = True
self.vp.key_pressed('escape')
def loop_event(self, event):
#just kick off the first track, callback decides what to do next
self.break_from_loop = False
self.vp = AudioPlayer(self.canvas, self.pp_home, self.show_params)
self.vp.play(self.track, self.what_next, self, do_ready, False,
self.do_starting, self.do_playing, self.do_finishing)
def next_event(self, event):
self.break_from_loop = False
self.vp.key_pressed('down')
def what_next(self, reason, message):
self.vp = None
if reason in ('killed', 'error'):
self.end(reason, message)
else:
if self.break_from_loop == True:
self.break_from_loop = False
print "test harness: loop interupted"
return
else:
self.vp = AudioPlayer(self.canvas, self.show_params)
self.vp.play(self.track, self.what_next, self.do_starting,
self.do_playing, self.do_finishing)
def on_end(self, reason, message):
self.vp = None
print "Test Class: callback from AudioPlayer says: " + message
if reason in ('killed', 'error'):
self.end(reason, message)
else:
return
def do_ready(self):
print "test class message from AudioPlayer: ready to play"
return
def do_starting(self):
print "test class message from AudioPlayer: do starting"
return
def do_playing(self):
#self.display_time.set(self.time_string(self.vp.audio_position))
# print "test class message from AudioPlayer: do playing"
return
def do_finishing(self):
print "test class message from AudioPlayer: do ending"
return
def terminate(self):
if self.vp == None:
self.end('killled', 'killled')
else:
self.vp.terminate('killed')
return
def _end(self, reason, message):
self.ppio.terminate()
exit()
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
