from Tix import * from time import time # time is on my side from util import subsetdict from FlyingFader import FlyingFader # statuses are: # stopped - no cue is loaded or cue is stopped # running - cue is running, not complete # finished - cue is finished, next is loaded stdfont = ('Arial', 10) def get_selection(listbox): 'Given a listbox, returns first selection as integer' selection = int(listbox.curselection()[0]) # blech return selection class Fader(Frame): 'User interface for cue fader' def __init__(self, master, cues, scalelevels): self.master = master self.cues = cues self.scalelevels = scalelevels self.time_start = 0 self.init_layout() self.stop() def init_layout(self): Frame.__init__(self, self.master) # info variables self.cuename = StringVar() self.cuelength = DoubleVar() self.cuetarget = StringVar() # info about a running cue self.cuestatus = StringVar() # text description self.cuestatus.set("stopped") self.cuepercent = DoubleVar() # percent complete self.cuepercent.set(0) self.cuepercent.trace('w', self.update_percent) self.cuetimeelapse = StringVar() # time elapsed self.cuetimeelapse.set('0s') self.cuetimeleft = StringVar() # time left self.cuetimeleft.set('0s') buttonframe = Frame(self) topframe = Frame(self) # to contain cue list and infoframe infoframe = Frame(topframe) topframe.pack() self.listbox = ScrolledListBox(topframe, command=self.update_selection) self.listbox.listbox.configure({'exportselection' : 0, 'selectmode' : EXTENDED}) for c in self.cues: self.listbox.listbox.insert(END, c.name) self.listbox.pack(side=LEFT) self.listbox.listbox.bind("<>", self.update_selection, add=1) Button(buttonframe, text="Go", command=self.go, font=stdfont, bg='green').pack(side=LEFT) Button(buttonframe, text="Stop", command=self.stop, font=stdfont, bg='red').pack(side=LEFT) Button(buttonframe, text="Prev", command=self.prev, font=stdfont).pack(side=LEFT) nextbutton = Button(buttonframe, text="Next", command=self.next, font=stdfont) # Button(buttonframe, text="Load", command=self.mark_start, bg='grey80', # font=stdfont).pack(side=LEFT) Label(infoframe, textvariable=self.cuename, font=('Arial', 12), bg='lightBlue').grid(columnspan=4, sticky=NE+SW) Label(infoframe, text="Length", font=stdfont, bg='lightPink').grid(row=1, sticky=NE+SW) Label(infoframe, textvariable=self.cuelength, font=stdfont).grid(row=1, column=1, columnspan=3, sticky=NE+SW) Label(infoframe, text="Target", font=stdfont, bg='lightPink').grid(row=2, sticky=NE+SW) Label(infoframe, textvariable=self.cuetarget, font=stdfont, wraplength=250).grid(row=2, column=1, columnspan=3, sticky=NE+SW) Label(infoframe, text="Status", font=stdfont, bg='lightPink').grid(row=3, sticky=NE+SW) Label(infoframe, textvariable=self.cuestatus, font=stdfont).grid(row=3, column=1, columnspan=3, sticky=NE+SW) Label(infoframe, text="Time Elapsed", font=stdfont, bg='lightPink').grid(row=4, sticky=NE+SW) Label(infoframe, textvariable=self.cuetimeelapse, font=stdfont).grid(row=4, column=1, sticky=NE+SW) Label(infoframe, text="Time Remain", font=stdfont, bg='lightPink').grid(row=4, column=2, sticky=NE+SW) Label(infoframe, textvariable=self.cuetimeleft, font=stdfont).grid(row=4, column=3, sticky=NE+SW) Label(infoframe, text="Percent Complete", font=stdfont, bg='lightPink').grid(row=5, column=0, sticky=NE+SW) self.percentlabel = Label(infoframe, font=stdfont) self.percentlabel.grid(row=5, column=1, columnspan=3, sticky=NE+SW) # s = Scale(infoframe, variable=self.cuepercent, s = Scale(buttonframe, variable=self.cuepercent, showvalue=0, length=220, width=18, sliderlength=30, to=100,res=.1,from_=0,bd=1, font=stdfont, orient='horiz') # s.grid(row=6, columnspan=4, sticky='ew') nextbutton.pack(side=RIGHT) s.pack(side=RIGHT, expand=1, fill=X) infoframe.pack(side=RIGHT, fill=BOTH, expand=1) buttonframe.pack(side=BOTTOM, expand=1, fill=X) self.listbox.listbox.select_set(0) self.update_selection() def mark_start(self): self.time_start = time() startlevels = dict([(k, v.get()) for k, v in self.scalelevels.items()]) # print "going to mark with", startlevels self.current.start(startlevels, self.time_start) def update_percent(self, *args): if self.cuestatus.get() != 'running': self.cuestatus.set("running") self.mark_start() percent = self.cuepercent.get() self.percentlabel.config(text='%.1f%%' % percent) percent /= 100 elapsed = percent * self.current.dur self.cuetimeelapse.set('%.1fs' % elapsed) self.cuetimeleft.set('%.1fs' % (self.current.dur - elapsed)) newlevels = self.current.get_levels(self.time_start + elapsed) # print "newlevels", newlevels for ch, lev in newlevels.items(): try: self.scalelevels[ch].set(lev) except KeyError: pass def update_selection(self, *args): self.cuestatus.set('stopped') selection = get_selection(self.listbox.listbox) self.current = self.cues[selection] self.cuename.set(self.current.name) self.cuelength.set(self.current.dur) target = ', '.join(['%s -> %.2f' % (n, lev) for n, lev in self.current.get_end_levels().items()]) self.cuetarget.set(target) self.cuetimeelapse.set('0s') self.cuetimeleft.set('%.1fs' % self.current.dur) self.cuepercent.set(0) def go(self): self.update_selection() self.cuestatus.set("running") self.mark_start() self.running_loop() def stop(self): self.cuestatus.set('stopped') def prev(self): self.stop() selection = get_selection(self.listbox.listbox) if selection != 0: self.listbox.listbox.select_clear(selection) self.listbox.listbox.select_set(selection - 1) self.update_selection() self.mark_start() def next(self): self.stop() selection = get_selection(self.listbox.listbox) if selection != self.listbox.listbox.size() - 1: self.listbox.listbox.select_clear(selection) self.listbox.listbox.select_set(selection + 1) self.update_selection() self.mark_start() def running_loop(self): if self.cuestatus.get() == 'stopped': return curtime = time() elapsed = (curtime - self.time_start) if elapsed > self.current.dur: self.cuestatus.set('stopped') self.cuepercent.set(100) # advance cues if okay self.next() return self.cuepercent.set(100 * elapsed / self.current.dur) self.after(30, self.running_loop)