# common bits of __init__(...)

def __init__(self,

show_id,

showlist,

root,

canvas,

show_params,

track_params,

pp_dir,

pp_home,

pp_profile,

end_callback,

command_callback):

# create debugging log object

self.mon=Monitor()

self.mon.trace(self,'')

# instantiate arguments

self.show_id=show_id

self.showlist=showlist

self.root=root

self.canvas=canvas['canvas-obj']

self.show_canvas_x1 = canvas['show-canvas-x1']

self.show_canvas_y1 = canvas['show-canvas-y1']

self.show_canvas_x2 = canvas['show-canvas-x2']

self.show_canvas_y2 = canvas['show-canvas-y2']

self.show_canvas_width = canvas['show-canvas-width']

self.show_canvas_height= canvas['show-canvas-height']

self.show_canvas_centre_x= canvas['show-canvas-centre-x']

self.show_canvas_centre_y= canvas['show-canvas-centre-y']

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

self.end_callback=end_callback

self.command_callback=command_callback

# get background image from profile.

self.background_file=''

if self.track_params['background-image'] != '':

self.background_file= self.track_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']

# 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)

# 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 Animate so we can send animation commands

self.animate = Animate()

# initialise state and signals

self.background_obj=None

self.show_text_obj=None

self.track_text_obj=None

self.hint_obj=None

self.background=None

self.freeze_at_end_required='no' # overriden by videoplayer

self.tick_timer=None

self.terminate_signal=False

self.play_state=''

def pre_load(self):

# Control other shows at beginning

self.show_control(self.track_params['show-control-begin'])

pass

# common bits of show(....)

def pre_show(self):

self.mon.trace(self,'')

# show_x_content moved to just before ready_callback to improve flicker.

self.show_x_content()

# and whatecer the plugin has created

self.pim.show_plugin()

#ready callback hides and closes players from previous track, also displays show background

if self.ready_callback is not None:

self.ready_callback(self.enable_show_background)

# create animation events

reason,message=self.animate.animate(self.animate_begin_text,id(self))

if reason == 'error':

self.mon.err(self,message)

self.play_state='show-failed'

if self.finished_callback is not None:

self.finished_callback('error',message)

else:

# return to start playing the track.

self.mon.log(self,">show track received from show Id: "+ str(self.show_id))

return

# to keep landscape happy

def ready_callback(self,enable_show_background):

self.mon.fatal(self,'ready callback not overridden')

self.end('error','ready callback not overridden')

def finished_callback(self,reason,message):

self.mon.fatal(self,'finished callback not overridden')

self.end('error','finished callback not overridden')

def closed_callback(self,reason,message):

self.mon.fatal(self,'closed callback not overridden')

self.end('error','closed callback not overridden')

# Control shows so pass the show control commands back to PiPresents via the command callback

def show_control(self,show_control_text):

lines = show_control_text.split('\n')

for line in lines:

if line.strip() == "":

continue

# print 'show control command: ',line

self.command_callback(line, source='track',show=self.show_params['show-ref'])

# *****************

# hide content and end animation, show control etc.

# called by ready calback and end

# *****************

def hide(self):

self.mon.trace(self,'')

# abort the timer

if self.tick_timer is not None:

self.canvas.after_cancel(self.tick_timer)

self.tick_timer=None

self.hide_x_content()

# stop the plugin

if self.track_params['plugin'] != '':

self.pim.stop_plugin()

# Control concurrent shows at end

self.show_control(self.track_params['show-control-end'])

# clear events list for this track

if self.track_params['animate-clear'] == 'yes':

self.animate.clear_events_list(id(self))

# create animation events for ending

reason,message=self.animate.animate(self.animate_end_text,id(self))

if reason == 'error':

self.play_state='show-failed'

if self.finished_callback is not None:

self.finished_callback('error',message)

else:

return

def terminate(self):

self.mon.trace(self,'')

self.terminate_signal=True

if self.play_state == 'showing':

# call the derived class's stop method

self.stop()

else:

self.end('killed','terminate with no track or show open')

# must be overriden by derived class

def stop(self):

self.mon.fatal(self,'stop not overidden by derived class')

self.play_state='show-failed'

if self.finished_callback is not None:

self.finished_callback('error','stop not overidden by derived class')

def get_play_state(self):

return self.play_state

# *****************

# ending the player

# *****************

def end(self,reason,message):

self.mon.trace(self,'')

# stop the plugin

if self.terminate_signal is True:

reason='killed'

self.terminate_signal=False

self.hide()

self.end_callback(reason,message)

self=None

# *****************

# displaying common things

# *****************

def load_plugin(self):

# load the plugin if required

if self.track_params['plugin'] != '':

reason,message,self.track = self.pim.load_plugin(self.track,self.track_params['plugin'])

return reason,message

def draw_plugin(self):

# load the plugin if required

if self.track_params['plugin'] != '':

self.pim.draw_plugin()

return

def load_x_content(self,enable_menu):

self.mon.trace(self,'')

self.background_obj=None

self.background=None

self.track_text_obj=None

self.show_text_obj=None

self.hint_obj=None

self.track_obj=None

# background image

if self.background_file != '':

background_img_file = self.complete_path(self.background_file)

if not os.path.exists(background_img_file):

return 'error',"Track background file not found "+ background_img_file

else:

pil_background_img=Image.open(background_img_file)

# print 'pil_background_img ',pil_background_img

image_width,image_height=pil_background_img.size

window_width=self.show_canvas_width

window_height=self.show_canvas_height

if image_width != window_width or image_height != window_height:

pil_background_img=pil_background_img.resize((window_width, window_height))

self.background = ImageTk.PhotoImage(pil_background_img)

del pil_background_img

self.background_obj = self.canvas.create_image(self.show_canvas_x1,

self.show_canvas_y1,

image=self.background,

anchor=NW)

# print '\nloaded background_obj: ',self.background_obj

# load the track content. Dummy function below is overridden in players

status,message=self.load_track_content()

if status == 'error':

return 'error',message

# load show text if enabled

if self.show_params['show-text'] != '' and self.track_params['display-show-text'] == 'yes':

x,y,anchor,justify=calculate_text_position(self.show_params['show-text-x'],self.show_params['show-text-y'],

self.show_canvas_x1,self.show_canvas_y1,

self.show_canvas_centre_x,self.show_canvas_centre_y,

self.show_canvas_x2,self.show_canvas_y2,self.show_params['show-text-justify'])

self.show_text_obj=self.canvas.create_text(x,y,

anchor=anchor,

justify=justify,

text=self.show_params['show-text'],

fill=self.show_params['show-text-colour'],

font=self.show_params['show-text-font'])

# load track text if enabled

if self.track_params['track-text'] != '':

x,y,anchor,justify=calculate_text_position(self.track_params['track-text-x'],self.track_params['track-text-y'],

self.show_canvas_x1,self.show_canvas_y1,

self.show_canvas_centre_x,self.show_canvas_centre_y,

self.show_canvas_x2,self.show_canvas_y2,self.track_params['track-text-justify'])

self.track_text_obj=self.canvas.create_text(x,y,

anchor=anchor,

justify=justify,

text=self.track_params['track-text'],

fill=self.track_params['track-text-colour'],

font=self.track_params['track-text-font'])

# load instructions if enabled

if enable_menu is True:

x,y,anchor,justify=calculate_text_position(self.show_params['hint-x'],self.show_params['hint-y'],

self.show_canvas_x1,self.show_canvas_y1,

self.show_canvas_centre_x,self.show_canvas_centre_y,

self.show_canvas_x2,self.show_canvas_y2,self.show_params['hint-justify'])

self.hint_obj=self.canvas.create_text(x,y,

justify=justify,

text=self.show_params['hint-text'],

fill=self.show_params['hint-colour'],

font=self.show_params['hint-font'],

anchor=anchor)

self.display_show_canvas_rectangle()

self.pim.draw_plugin()

self.canvas.tag_raise('pp-click-area')

self.canvas.itemconfig(self.background_obj,state='hidden')

self.canvas.itemconfig(self.show_text_obj,state='hidden')

self.canvas.itemconfig(self.track_text_obj,state='hidden')

self.canvas.itemconfig(self.hint_obj,state='hidden')

self.canvas.update_idletasks( )

return 'normal','x-content loaded'

# display the rectangle that is the show canvas

def display_show_canvas_rectangle(self):

# coords=[self.show_canvas_x1,self.show_canvas_y1,self.show_canvas_x2-1,self.show_canvas_y2-1]

# self.canvas.create_rectangle(coords,

# outline='yellow',

# fill='')

pass

# dummy functions to manipulate the track content, overidden in some players,

# message text in messageplayer

# image in imageplayer

# menu stuff in menuplayer

def load_track_content(self):

return 'normal','player has no track content to load'

def show_track_content(self):

pass

def hide_track_content(self):

pass

def show_x_content(self):

self.mon.trace(self,'')

# background colour

if self.background_colour != '':

self.canvas.config(bg=self.background_colour)

# print 'showing background_obj: ', self.background_obj

# reveal background image and text

self.canvas.itemconfig(self.background_obj,state='normal')

self.show_track_content()

self.canvas.itemconfig(self.show_text_obj,state='normal')

self.canvas.itemconfig(self.track_text_obj,state='normal')

self.canvas.itemconfig(self.hint_obj,state='normal')

# self.canvas.update_idletasks( )

# decide whether the show background should be enabled.

# print 'DISPLAY SHOW BG',self.track_params['display-show-background'],self.background_obj

if self.background_obj is None and self.track_params['display-show-background']=='yes':

self.enable_show_background=True

else:

self.enable_show_background=False

# print 'ENABLE SB',self.enable_show_background

def hide_x_content(self):

self.mon.trace(self,'')

self.hide_track_content()

self.canvas.itemconfig(self.background_obj,state='hidden')

self.canvas.itemconfig(self.show_text_obj,state='hidden')

self.canvas.itemconfig(self.track_text_obj,state='hidden')

self.canvas.itemconfig(self.hint_obj,state='hidden')

# self.canvas.update_idletasks( )

self.canvas.delete(self.background_obj)

self.canvas.delete(self.show_text_obj)

self.canvas.delete(self.track_text_obj)

self.canvas.delete(self.hint_obj)

self.background=None

# self.canvas.update_idletasks( )

# ****************

# utilities

# *****************

def get_links(self):

return self.track_params['links']

# produce an absolute path from the relative one in track paramters

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:]

elif track_file[0] == "@":

track_file=self.pp_profile+track_file[1:]

return track_file

# get a text string from resources.cfg

def resource(self,section,item):

value=self.rr.get(section,item)