--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/flax/CueFaders.py	Wed Jul 03 09:37:57 2002 +0000
@@ -0,0 +1,714 @@
+from __future__ import division, nested_scopes
+import Tix as Tk
+import time
+from TreeDict import TreeDict, allow_class_to_be_pickled
+from TLUtility import enumerate
+import Submaster, dmxclient
+
+cue_state_indicator_colors = {
+             # bg       fg
+    'prev' : ('blue',   'white'),
+    'cur' :  ('yellow', 'black'),
+    'next' : ('red',    'white'),
+}
+
+# TODO 
+# FIXE pause fades, set new time to be remaining about of time in the fade so 
+#           fade can continue properly
+# FIXE make fades work properly: the set_next / prev bug
+# WONT find cue by page ("not necessawy!")
+# WONT CueFader controls KeyboardController?  unlikely
+# FIXE AutoSave loop
+
+class LabelledScale(Tk.Frame):
+    """Scale with two labels: a name and current value"""
+    def __init__(self, master, label, **opts):
+        Tk.Frame.__init__(self, master, bd=2, relief='raised', bg='black')
+        self.labelformatter = opts.get('labelformatter')
+        try:
+            del opts['labelformatter']
+        except KeyError:
+            pass
+
+        opts.setdefault('variable', Tk.DoubleVar())
+        opts.setdefault('showvalue', 0)
+
+        self.normaltrough = opts.get('troughcolor', 'black')
+        self.flashtrough = opts.get('flashtroughcolor', 'red')
+        try:
+            del opts['flashtroughcolor']
+        except KeyError:
+            pass
+
+        self.scale_var = opts['variable']
+        self.scale = Tk.Scale(self, **opts)
+        self.scale.pack(side='top', expand=1, fill='both')
+        self.name = Tk.Label(self, text=label, bg='black', fg='white')
+        self.name.pack(side='bottom')
+        self.scale_value = Tk.Label(self, bg='black', fg='white')
+        self.scale_value.pack(side='bottom')
+        self.scale_var.trace('w', self.update_value_label)
+        self.update_value_label()
+        self.disabled = (self.scale['state'] == 'disabled')
+    def set_label(self, label):
+        self.name['text'] = label
+    def update_value_label(self, *args):
+        val = self.scale_var.get() * 100
+        if self.labelformatter:
+            format = self.labelformatter(val)
+        else:
+            format = "%0.2f" % val
+        self.scale_value['text'] = format
+        if val != 0:
+            self.scale['troughcolor'] = self.flashtrough
+        else:
+            self.scale['troughcolor'] = self.normaltrough
+    def disable(self):
+        if not self.disabled:
+            self.scale['state'] = 'disabled'
+            self.scale_var.set(0)
+            self.disabled = 1
+    def enable(self):
+        if self.disabled:
+            self.scale['state'] = 'normal'
+            self.disabled = 0
+
+class TimedGoButton(Tk.Frame):
+    """Go button, fade time entry, and time fader"""
+    def __init__(self, master, name, scale_to_fade, **kw):
+        Tk.Frame.__init__(self, master, bg='black')
+        self.name = name
+        self.scale_to_fade = scale_to_fade
+        self.button = Tk.Button(self, text=name, command=self.start_fade, **kw)
+        self.button.pack(fill='both', expand=1, side='left')
+
+        self.timer_var = Tk.DoubleVar()
+        self.timer_entry = Tk.Control(self, step=0.5, min=0, integer=0, 
+            variable=self.timer_var, selectmode='immediate')
+        for widget in (self.timer_entry, self.timer_entry.entry, 
+            self.timer_entry.incr, self.timer_entry.decr, self.button, self):
+            widget.bind("<4>", self.wheelscroll)
+            widget.bind("<5>", self.wheelscroll)
+        self.timer_entry.entry.configure(width=5, bg='black', fg='white')
+        self.timer_entry.pack(fill='y', side='left')
+        self.timer_var.set(2)
+        self.disabled = (self.button['state'] == 'disabled')
+        self.start_time = 0
+        self.fading = 0
+        self.last_after_key = 0
+    def manual_override(self, *args):
+        self.end_fade()
+    def wheelscroll(self, event):
+        """Mouse wheel increments or decrements timer."""
+        if event.num == 4: # scroll up
+            self.timer_entry.increment()
+        else:            # scroll down
+            self.timer_entry.decrement()
+    def start_fade(self, end_level=1):
+        self.last_start_time = self.start_time
+        self.start_time = time.time()
+        self.start_level = self.scale_to_fade.scale_var.get()
+        self.end_level = end_level
+
+        if self.fading == 1: # if we're already fading
+            self.fading = 'paused'
+            # new fade should be as long as however much was left
+            self.fade_length = self.fade_length - \
+                (time.time() - self.last_start_time)
+            self.button['text'] = 'Unpause'
+            self.after_cancel(self.last_after_key)
+        else:
+            try:
+                fade_time = float(self.timer_var.get())
+            except ValueError:
+                # since we use a TixControl now, i don't think we need to worry 
+                # about validation any more.
+                print ">>> Can't fade -- bad time", self.timer_var.get()
+                return
+
+            # if we're not already fading, we get our time from the entry
+            if self.fading != 'paused':
+                self.fade_length = fade_time
+
+            self.button['text'] = 'Pause'
+            self.fading = 1
+            self.do_fade()
+    def do_fade(self):
+        diff = time.time() - self.start_time
+        if diff < self.fade_length:
+            percent = diff / self.fade_length
+            newlevel = self.start_level + \
+                (percent * (self.end_level - self.start_level))
+            self.scale_to_fade.scale_var.set(newlevel)
+
+            if newlevel != self.end_level:
+                self.last_after_key = self.after(10, self.do_fade)
+            else:
+                self.end_fade()
+        else:
+            self.scale_to_fade.scale_var.set(self.end_level)
+            self.end_fade()
+    def end_fade(self):
+        self.button['text'] = self.name
+        self.fading = 0
+        self.after_cancel(self.last_after_key)
+    def disable(self):
+        if not self.disabled:
+            self.button['state'] = 'disabled'
+            self.disabled = 1
+    def enable(self):
+        if self.disabled:
+            self.button['state'] = 'normal'
+            self.disabled = 0
+    def set_time(self, time):
+        self.timer_var.set(time)
+    def get_time(self):
+        return self.timer_var.get()
+    def is_fading(self):
+        return self.fading
+
+class CueFader(Tk.Frame):
+    def __init__(self, master, cuelist):
+        Tk.Frame.__init__(self, master, bg='black')
+        self.cuelist = cuelist
+        self.cuelist.set_fader(self)
+
+        self.last_levels_sent = 0
+        self.current_dmx_levels = [0] * 68
+        self.after(0, self.send_dmx_levels_loop) # start DMX sending loop
+
+        # this is a mechanism to stop Tk from autoshifting too much.
+        # if this variable is true, the mouse button is down.  we don't want
+        # to shift until they release it.  when it is released, we will
+        # set it to false and then call autoshift.
+        self.no_shifts_until_release = 0
+
+        self.scales = {}
+        self.shift_buttons = {}
+        self.go_buttons = {}
+        
+        topframe = Tk.Frame(self, bg='black')
+
+        self.set_prev_button = Tk.Button(topframe, text='Set Prev',
+            command=lambda: cuelist.set_selection_as_prev(),
+            fg='white', bg='blue')
+        self.set_prev_button.pack(side='left')
+
+        self.auto_shift = Tk.IntVar()
+        self.auto_shift.set(1)
+
+        self.auto_shift_checkbutton = Tk.Checkbutton(topframe, 
+            variable=self.auto_shift, text='Autoshift', 
+            command=self.toggle_autoshift, bg='black', fg='white',
+            highlightbackground='black')
+        self.auto_shift_checkbutton.pack(fill='both', side='left')
+
+        self.auto_load_times = Tk.IntVar()
+        self.auto_load_times.set(1)
+
+        self.auto_load_times_checkbutton = Tk.Checkbutton(topframe, 
+            variable=self.auto_load_times, text='Autoload Times', 
+            bg='black', fg='white', 
+            highlightbackground='black')
+        self.auto_load_times_checkbutton.pack(fill='both', side='left')
+
+        self.mute = Tk.IntVar()
+        self.mute.set(0)
+
+        self.mutebutton = Tk.Checkbutton(topframe, 
+            variable=self.mute, text='Mute', 
+            bg='black', fg='white', 
+            highlightbackground='black',
+            command=self.send_dmx_levels)
+        self.mutebutton.pack(fill='both', side='left')
+
+        self.set_next_button = Tk.Button(topframe, text='Set Next',
+            command=lambda: cuelist.set_selection_as_next(),
+            fg='white', bg='red')
+        self.set_next_button.pack(side='left')
+
+        topframe.pack(side='top')
+
+        faderframe = Tk.Frame(self, bg='black')
+        self.direction_info = (('Prev', 1, 0, 'left', 'blue'),
+                               ('Next', 0, 1, 'right', 'red'))
+        for name, start, end, side, color in self.direction_info:
+            frame = Tk.Frame(self, bg='black')
+            scale = LabelledScale(frame, name, from_=start, to_=end, 
+                res=0.0001, orient='horiz', flashtroughcolor=color,
+                labelformatter=lambda val, name=name: self.get_scale_desc(val, 
+                                                                          name))
+            scale.pack(fill='x', expand=0)
+            go = TimedGoButton(frame, 'Go %s' % name, scale, bg=color, 
+                fg='white', width=10)
+            go.pack(fill='both', expand=1)
+            frame.pack(side=side, fill='both', expand=1)
+        
+            shift = Tk.Button(frame, text="Shift %s" % name, state='disabled',
+                command=lambda name=name: self.shift(name), fg=color, 
+                bg='black')
+
+            self.scales[name] = scale
+            self.shift_buttons[name] = shift
+            self.go_buttons[name] = go
+
+            scale.scale_var.trace('w', \
+                lambda x, y, z, name=name, scale=scale: self.xfade(name, scale))
+            go.timer_var.trace('w',
+                lambda x, y, z, scale=scale: scale.update_value_label())
+
+            def button_press(event, name=name, scale=scale):
+                self.no_shifts_until_release = 1 # prevent shifts until release
+            def button_release(event, name=name, scale=scale):
+                self.no_shifts_until_release = 0
+                self.autoshift(name, scale)
+
+            scale.scale.bind("<ButtonPress>", button_press)
+            scale.scale.bind("<ButtonRelease>", button_release)
+        faderframe.pack(side='bottom', fill='both', expand=1)
+
+        self.current_dir = 'Next'
+        self.cues_as_subs = {}
+        self.update_cue_cache()
+    def reload_cue_times(self):
+        prev, cur, next = self.cuelist.get_current_cues()
+        self.go_buttons['Next'].set_time(next.time)
+    def update_cue_cache(self, compute_dmx_levels=1):
+        """Rebuilds subs from the current cues.  As this is expensive, we don't
+        do it unless necessary (i.e. whenever we shift or a cue is edited)"""
+        # print "update_cue_cache"
+        # load the subs to fade between
+        for cue, name in zip(self.cuelist.get_current_cues(), 
+                             ('Prev', 'Cur', 'Next')):
+            self.cues_as_subs[name] = cue.get_levels_as_sub()
+        if compute_dmx_levels:
+            self.compute_dmx_levels()
+    def compute_dmx_levels(self):
+        """Compute the DMX levels to send.  This should get called whenever the
+        DMX levels could change: either during a crossfade or when a cue is
+        edited.  Since this is called when we know that a change might occur,
+        we will send the new levels too."""
+        cur_sub = self.cues_as_subs.get('Cur')
+        if cur_sub:
+            scale = self.scales[self.current_dir]
+            scale_val = scale.scale_var.get() 
+
+            other_sub = self.cues_as_subs[self.current_dir]
+            current_levels_as_sub = cur_sub.crossfade(other_sub, scale_val)
+            self.current_dmx_levels = current_levels_as_sub.get_dmx_list()
+            self.send_dmx_levels()
+
+            # print "compute_dmx_levels: fade at", scale_val
+            # print "between", cur_sub.name, 
+            # print "and", other_sub.name
+            # print 
+    def send_dmx_levels(self, *args):
+        # print "send_dmx_levels", self.current_dmx_levels
+        if self.mute.get():
+            dmxclient.outputlevels([0] * 68)
+        else:
+            dmxclient.outputlevels(self.current_dmx_levels)
+        self.last_levels_sent = time.time()
+    def send_dmx_levels_loop(self):
+        diff = time.time() - self.last_levels_sent
+        if diff >= 2: # too long since last send
+            self.send_dmx_levels()
+            self.after(200, self.send_dmx_levels_loop)
+        else:
+            self.after(int((2 - diff) * 100), self.send_dmx_levels_loop)
+    def get_scale_desc(self, val, name):
+        """Returns a description to the TimedGoButton"""
+        go_button = self.go_buttons.get(name)
+        if go_button:
+            time = go_button.get_time()
+            return "%0.2f%%, %0.1fs left" % (val, time - ((val / 100.0) * time))
+        else:
+            return "%0.2f%%" % val
+    def toggle_autoshift(self):
+        for name, button in self.shift_buttons.items():
+            if not self.auto_shift.get():
+                button.pack(side='bottom', fill='both', expand=1)
+            else:
+                button.pack_forget()
+    def shift(self, name):
+        # to prevent overshifting
+        if self.no_shifts_until_release:
+            return
+        # print "shift", name
+
+        self.cuelist.shift((-1, 1)[name == 'Next'])
+        self.update_cue_cache(compute_dmx_levels=0)
+        for scale_name, scale in self.scales.items():
+            # print "shift: setting scale to 0", scale_name
+            scale.scale.set(0)
+            self.go_buttons[scale_name].manual_override()
+        self.update_cue_cache(compute_dmx_levels=1)
+
+        if self.auto_load_times.get():
+            self.reload_cue_times()
+    def autoshift(self, name, scale):
+        scale_val = scale.scale_var.get() 
+
+        if scale_val == 1:
+            if self.auto_shift.get():
+                self.shift(name)
+    def xfade(self, name, scale):
+        if self.auto_shift.get():
+            self.autoshift(name, scale)
+            scale_val = scale.scale_var.get() 
+        else:
+            scale_val = scale.scale_var.get() 
+            if scale_val == 1:
+                self.shift_buttons[name]['state'] = 'normal'
+            else:
+                # disable any dangerous shifting
+                self.shift_buttons[name]['state'] = 'disabled'
+
+        d = self.opposite_direction(name)
+        if scale_val != 0:
+            # disable illegal three part crossfades
+            self.scales[d].disable()
+            self.go_buttons[d].disable()
+        else:
+            # undo above work
+            self.scales[d].enable()
+            self.go_buttons[d].enable()
+
+        self.current_dir = name
+        self.compute_dmx_levels()
+    def opposite_direction(self, d):
+        if d == 'Next':
+            return 'Prev'
+        else:
+            return 'Next'
+
+class Cue:
+    """A Cue has a name, a time, and any number of other attributes."""
+    def __init__(self, name, time=3, sub_levels='', **attrs):
+        self.name = name
+        self.time = time
+        self.sub_levels = sub_levels
+        self.__dict__.update(attrs)
+    def __repr__(self):
+        return "<Cue %s, length %s>" % (self.name, self.time)
+    def get_levels_as_sub(self):
+        """Get this Cue as a combined Submaster, normalized.  This method
+        should not be called constantly, since it is somewhat expensive.  It
+        will reload the submasters from disk, combine all subs together, and
+        then compute the normalized form."""
+        subdict = {}
+        for line in self.sub_levels.split(','):
+            try:
+                line = line.strip()
+                if not line: 
+                    continue
+                sub, scale = line.split(':')
+                sub = sub.strip()
+                scale = float(scale)
+                subdict[sub] = scale
+            except ValueError:
+                print "Parsing error for '%s' in %s" % (self.sub_levels, self)
+
+        s = Submaster.Submasters()
+        newsub = Submaster.sub_maxes(*[s[sub] * scale 
+            for sub, scale in subdict.items()])
+        return newsub.get_normalized_copy()
+
+empty_cue = Cue('empty')
+
+allow_class_to_be_pickled(Cue)
+
+class CueList:
+    """Persistent list of Cues"""
+    def __init__(self, filename):
+        self.filename = filename
+        self.treedict = TreeDict()
+        try:
+            self.treedict.load(filename)
+        except IOError:
+            self.treedict.cues = []
+        self.cues = self.treedict.cues
+        self.current_cue_index = -1
+        self.next_pointer = 0
+        self.prev_pointer = None
+
+        import atexit
+        atexit.register(self.save)
+    def add_cue(self, cue, index=None):
+        """Adds a Cue object to the list.  If no index is specified,
+        the cue will be added to the end."""
+        index = index or len(self.cues)
+        self.cues.insert(index, cue)
+    def shift(self, diff):
+        """Shift through cue history"""
+        old_index = self.current_cue_index
+        self.current_cue_index = None
+        if diff < 0: # if going backwards
+            if self.prev_pointer: # use a prev pointer if we have one
+                self.current_cue_index = self.prev_pointer
+            self.next_pointer = old_index
+            self.prev_pointer = None
+        else:
+            if self.next_pointer: # use a next pointer if we have one
+                self.current_cue_index = self.next_pointer
+            self.next_pointer = None
+            self.prev_pointer = old_index
+        if not self.current_cue_index:
+            self.current_cue_index = old_index + diff
+    def set_next(self, index):
+        self.next_pointer = index
+    def set_prev(self, index):
+        self.prev_pointer = index
+    def bound_index(self, index):
+        if not self.cues or index < 0:
+            return None
+        else:
+            return min(index, len(self.cues) - 1)
+    def get_current_cue_indices(self):
+        """Returns a list of the indices of three cues: the previous cue,
+        the current cue, and the next cue."""
+        cur = self.current_cue_index
+        return [self.bound_index(index) for index in
+                    (self.prev_pointer or cur - 1, 
+                     cur, 
+                     self.next_pointer or cur + 1)]
+    def get_current_cues(self):
+        """Returns a list of three cues: the previous cue, the current cue,
+        and the next cue."""
+        return [self.get_cue_by_index(index) 
+            for index in self.get_current_cue_indices()]
+    def get_cue_by_index(self, index):
+        try:
+            return self.cues[self.bound_index(index)]
+        except TypeError:
+            return empty_cue
+    def __del__(self):
+        self.save()
+    def save(self, backup=0):
+        if backup:
+
+            backupfilename = "%s-backup" % self.filename
+            print time.asctime(), "Saving backup version of cues to", \
+                backupfilename
+            self.treedict.save(backupfilename)
+        else:
+            print time.asctime(), "Saving cues to", self.filename
+            self.treedict.save(self.filename)
+    def reload(self):
+        # TODO: we probably will need to make sure that indices still make
+        # sense, etc.
+        self.treedict.load(self.filename)
+
+class TkCueList(CueList, Tk.Frame):
+    def __init__(self, master, filename):
+        CueList.__init__(self, filename)
+        Tk.Frame.__init__(self, master, bg='black')
+        self.fader = None
+        
+        self.edit_tl = Tk.Toplevel()
+        self.editor = CueEditron(self.edit_tl, 
+            changed_callback=self.cue_changed)
+        self.editor.pack(fill='both', expand=1)
+
+        def edit_cue(index):
+            index = int(index)
+            self.editor.set_cue_to_edit(self.cues[index])
+            
+        self.columns = ('name', 'time', 'page', 'cuenum', 'desc', 'sub_levels')
+        self.scrolled_hlist = Tk.ScrolledHList(self,
+            options='hlist.columns %d hlist.header 1' % len(self.columns))
+        self.hlist = self.scrolled_hlist.hlist
+        self.hlist.configure(fg='white', bg='black', 
+            command=self.select_callback, browsecmd=edit_cue)
+        self.hlist.bind("<4>", self.wheelscroll)
+        self.hlist.bind("<5>", self.wheelscroll)
+        self.scrolled_hlist.pack(fill='both', expand=1)
+
+        boldfont = self.tk.call('tix', 'option', 'get', 
+            'bold_font')
+        header_style = Tk.DisplayStyle('text', refwindow=self,
+            anchor='center', padx=8, pady=2, font=boldfont)
+
+        for count, header in enumerate(self.columns):
+            self.hlist.header_create(count, itemtype='text',
+                text=header, style=header_style)
+
+        self.cue_label_windows = {}
+        for count, cue in enumerate(self.cues):
+            self.display_cue(count, cue)
+        self.update_cue_indicators()
+        self.save_loop()
+    def set_fader(self, fader):
+        self.fader = fader
+    def wheelscroll(self, evt):
+        """Perform mouse wheel scrolling"""
+        if evt.num == 4: # scroll down
+            amount = -2
+        else:            # scroll up
+            amount = 2
+        self.hlist.yview('scroll', amount, 'units')
+    def cue_changed(self, cue):
+        path = self.cues.index(cue)
+        for col, header in enumerate(self.columns):
+            try:
+                text = getattr(cue, header)
+            except AttributeError:
+                text = ''
+
+            if col == 0:
+                self.cue_label_windows[path]['text'] = text
+            else:
+                self.hlist.item_configure(path, col, text=text)
+
+        if cue in self.get_current_cues() and self.fader:
+            self.fader.update_cue_cache()
+            self.fader.reload_cue_times()
+    def display_cue(self, path, cue):
+        for col, header in enumerate(self.columns):
+            try:
+                text = getattr(cue, header)
+            except AttributeError:
+                text = ''
+
+            if col == 0:
+                lab = Tk.Label(self.hlist, text=text, fg='white', bg='black')
+                def select_and_highlight(event):
+                    self.select_callback(path)
+                    self.hlist.selection_clear()
+                    self.hlist.selection_set(path)
+
+                lab.bind("<Double-1>", select_and_highlight)
+                self.hlist.add(path, itemtype='window', window=lab)
+                self.cue_label_windows[path] = lab
+            else:
+                self.hlist.item_create(path, col, text=text)
+    def reset_cue_indicators(self, cue_indices=None):
+        """If cue_indices is None, we'll reset all of them."""
+        cue_indices = cue_indices or self.cue_label_windows.keys()
+        for key in cue_indices:
+            if key is None:
+                continue
+            window = self.cue_label_windows[key]
+            window.configure(fg='white', bg='black')
+    def update_cue_indicators(self):
+        states = dict(zip(self.get_current_cue_indices(), 
+                     ('prev', 'cur', 'next')))
+
+        for count, state in states.items():
+            if count is None:
+                continue
+            window = self.cue_label_windows[count]
+            bg, fg = cue_state_indicator_colors[state]
+            window.configure(bg=bg, fg=fg)
+    def shift(self, diff):
+        self.reset_cue_indicators(self.get_current_cue_indices())
+        CueList.shift(self, diff)
+        self.update_cue_indicators()
+        # try to see all indices, but next takes priority over all, and cur
+        # over prev
+        for index in self.get_current_cue_indices():
+            if index is not None:
+                self.hlist.see(index)
+    def select_callback(self, index):
+        new_next = int(index)
+        self.set_next(new_next)
+    def set_next(self, index):
+        prev, cur, next = self.get_current_cue_indices()
+        self.reset_cue_indicators((next,))
+        CueList.set_next(self, index)
+        self.update_cue_indicators()
+
+        if self.fader: # XXX this is untested
+            self.fader.update_cue_cache()
+    def set_prev(self, index):
+        prev, cur, next = self.get_current_cue_indices()
+        self.reset_cue_indicators((prev,))
+        CueList.set_prev(self, index)
+        self.update_cue_indicators()
+
+        if self.fader: # XXX this is untested
+            self.fader.update_cue_cache()
+    def set_selection_as_prev(self):
+        sel = self.hlist.info_selection()
+        if sel:
+            self.set_prev(int(sel[0]))
+    def set_selection_as_next(self):
+        sel = self.hlist.info_selection()
+        if sel:
+            self.set_next(int(sel[0]))
+    def save_loop(self):
+        """This saves the CueList every minute."""
+        self.save(backup=1)
+        self.after(60000, self.save_loop)
+
+class CueEditron(Tk.Frame):
+    def __init__(self, master, changed_callback=None, cue=None):
+        Tk.Frame.__init__(self, master, bg='black')
+        self.master = master
+        self.cue = cue
+        self.changed_callback = changed_callback
+        self.enable_callbacks = 1
+
+        self.setup_editing_forms()
+        self.set_cue_to_edit(cue)
+    def set_cue_to_edit(self, cue):
+        if cue != self.cue:
+            self.cue = cue
+            self.fill_in_cue_info()
+            self.set_title()
+    def set_title(self):
+            try:
+                self.master.title("Editing '%s'" % self.cue.name)
+            except AttributeError:
+                pass
+    def setup_editing_forms(self):
+        self.variables = {}
+        for row, field in enumerate(('name', 'time', 'page', 'cuenum', 'desc', 
+            'sub_levels')):
+            lab = Tk.Label(self, text=field, fg='white', bg='black')
+            lab.grid(row=row, column=0, sticky='nsew')
+
+            entryvar = Tk.StringVar()
+            entry = Tk.Entry(self, fg='white', bg='black', 
+                textvariable=entryvar, insertbackground='white',
+                highlightcolor='red') # TODO this red/black is backwards
+            entry.grid(row=row, column=1, sticky='nsew')
+
+            self.variables[field] = entryvar
+
+            def field_changed(x, y, z, field=field, entryvar=entryvar):
+                if self.cue:
+                    setattr(self.cue, field, entryvar.get())
+                    if self.enable_callbacks and self.changed_callback:
+                        self.changed_callback(self.cue)
+                if field == 'name':
+                    self.set_title()
+
+            entryvar.trace('w', field_changed)
+        self.columnconfigure(1, weight=1)
+    def fill_in_cue_info(self):
+        self.enable_callbacks = 0
+        for row, field in enumerate(('name', 'time', 'page', 'cuenum', 'desc', 
+            'sub_levels')):
+            text = ''
+            if self.cue:
+                try:
+                    text = getattr(self.cue, field)
+                except AttributeError:
+                    pass
+            self.variables[field].set(text)
+        self.enable_callbacks = 1
+
+if __name__ == "__main__":
+    root = Tk.Tk()
+    root.title("ShowMaster 9000")
+    root.geometry("600x670")
+    cl = TkCueList(root, 'cues/dolly')
+    cl.pack(fill='both', expand=1)
+
+    fader = CueFader(root, cl)
+    fader.pack(fill='both', expand=1)
+    try:
+        Tk.mainloop()
+    except KeyboardInterrupt:
+        root.destroy()