--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/light8/Fader.py	Wed Jul 03 09:37:57 2002 +0000
@@ -0,0 +1,194 @@
+from Tix import *
+from time import time # time is on my side
+from util import subsetdict
+from FlyingFader import FlyingFader
+from uihelpers import get_selection
+
+# 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)
+
+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("<<ListboxSelect>>", 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)