Changeset - 5f0c6bc8e9de
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dmcc - 22 years ago 2002-07-12 10:39:21

for my next trick, i'll object-ize this properly
1 file changed with 73 insertions and 284 deletions:
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light8/ExtSliderMapper.py
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""" The External Slider Mapping widget determines which pots map to which
 
submasters.  It tells you the status of each mapping and saves and loads
 
presets.  The show is relying on this module!  Do not lose it!
 

	
 
FUQ (frequently unasked question(s))
 

	
 
1. What's with all the *args?
 

	
 
It lets functions take any number of arguments and throw them away.
 
Callbacks do this, and we typically don't care about what they have to say. """
 

	
 
"""some more of the panels"""
 
from Tix import *
 
from uihelpers import FancyDoubleVar, get_selection
 

	
 
stdfont = ('Arial', 8)
 
colors = ('lightBlue', 'lightPink', 'lightGreen', 'aquamarine1')
 

	
 
class SliderMapping:
 
    def __init__(self, color, default='disconnected', synced=0, 
 
                 extinputlevel=0, sublevel=0):
 
        self.color = color
 
        self.subname = StringVar() # name of submaster we're connected to
 
        self.subname.set(default)
 
        self.sublevel = DoubleVar() # scalelevel variable of that submaster
 
        # self.sublevel = FancyDoubleVar() # scalelevel variable of that submaster
 
        self.sublevel.set(sublevel)
 
        self.synced = BooleanVar() # currently synced
 
        self.synced.set(synced)
 
        self.extlevel = DoubleVar() # external slider's input
 
        self.extlevel.set(extinputlevel)
 
        self.widgets = [] # list of widgets drawn
 
        self.sublabel = None # the label which represents a sub level.  
 
                             # we hold on to it so we can change its 
 
                             # textvariable
 
        self.statuslabel = None # tells us sync status
 
        self.lastbgcolor = None # last background color drawn to avoid 
 
                                # unnecessary redraws
 
        self.subnames = [] # we need to keep track of this for idiotic reasons
 
    def sync(self, *args):
 
        self.synced.set(1)
 
        self.color_bg()
 
    def unsync(self, *args):
 
        self.synced.set(0)
 
        self.color_bg()
 
    def issynced(self):
 
        return self.synced.get()
 
    def disconnect(self, *args):
 
        self.set_subname('disconnected') # a bit hack-like
 
        # self.sublevel.delete_named('sync')
 
        '''
 
        try:
 
            if self.sublevel.unsync_trace_cbname is not None:
 
                # self.sublevel.trace_vdelete('w', 
 
                    # self.sublevel.unsync_trace_cbname)
 
                self.sublevel._tk.call('trace', 'vdelete', self.sublevel._name, 
 
                    'w', self.sublevel.unsync_trace_cbname)
 
                self.sublevel.unsync_trace_cbname = None
 
        except AttributeError:
 
            pass
 
        '''
 
            
 
        self.sublabel.configure(text="N/A")
 
        self.color_bg()
 
    def isdisconnected(self):
 
        return self.subname.get() == 'disconnected' # a bit more hack-like
 
    def check_synced(self, *args):
 
        'If external level is near than the sublevel, it synces'
 
        if self.isdisconnected(): 
 
            self.unsync()
 
            return
 

	
 
        if abs(self.extlevel.get() - self.sublevel.get()) <= 0.02:
 
            self.sync()
 
    def changed_extinput(self, newlevel):
 
        'When a new external level is received, this incorporates it'
 
        self.extlevel.set(newlevel)
 
        self.check_synced()
 
        self.color_bg()
 
    def set_subname(self, newname):
 
        try:
 
            self.listbox.listbox.select_clear(0, END)
 
        except IndexError:
 
            pass
 
        try:
 
            newindex = self.subnames.index(newname)
 
            self.listbox.listbox.select_set(newindex)
 
            self.listbox.listbox.see(newindex)
 
        except ValueError:
 
            pass
 

	
 
        self.subname.set(newname)
 
        self.unsync()
 
        self.color_bg()
 
    def color_bg(self):
 
        if self.widgets:
 
            if self.isdisconnected():
 
                color = 'honeyDew4'
 
            # stupid hack
 
            # elif abs(self.extlevel.get() - self.sublevel.get()) <= 0.02:
 
            elif self.issynced():
 
                color = 'honeyDew2'
 
            else: # unsynced
 
                color = 'red'
 

	
 
            if self.statuslabel: # more stupid hackery
 
                if color == 'honeyDew2': # connected
 
                    self.statuslabel['text'] = 'Sync'
 
                elif self.extlevel.get() < self.sublevel.get():
 
                    self.statuslabel['text'] = 'No sync (go up)'
 
                else:
 
                    self.statuslabel['text'] = 'No sync (go down)'
 

	
 
            # print "color", color, "lastbgcolor", self.lastbgcolor
 
            if self.lastbgcolor == color: return
 
            for widget in self.widgets:
 
                widget.configure(bg=color)
 
            self.lastbgcolor = color
 
    def set_sublevel_var(self, newvar):
 
        'newvar is one of the variables in scalelevels'
 

	
 
        if newvar is not self.sublevel:
 
            # self.sublevel.delete_named('sync')
 
            self.sublevel = newvar
 
            self.sublabel.configure(textvariable=newvar)
 
            # self.sublevel.trace_named('sync', lambda *args: self.unsync(*args))
 
            '''
 
            try:
 
                if self.sublevel.unsync_trace_cbname is not None:
 
                    # remove an old trace
 
                    self.sublevel.trace_vdelete('w',
 
                        self.sublevel.unsync_trace_cbname)
 
            except AttributeError:
 
                pass # it didn't have one
 

	
 
            self.sublevel = newvar
 
            self.sublevel.unsync_trace_cbname = self.sublevel.trace('w', 
 
                self.unsync)
 
            '''
 

	
 
        # if self.sublabel:
 
            # self.sublabel.configure(textvariable=newvar)
 
        self.check_synced()
 
    def get_mapping(self):
 
        'Get name of submaster currently mapped'
 
        return self.subname.get()
 
    def get_level_pair(self):
 
        'Returns suitable output for ExtSliderMapper.get_levels()'
 
        return (self.subname.get(), self.extlevel.get())
 
    def listbox_cb(self, *args):
 
        selection = get_selection(self.listbox.listbox)
 
        self.disconnect()
 
        self.subname.set(self.subnames[selection])
 
        self.listbox.listbox.select_set(selection)
 
    def draw_interface(self, master, subnames):
 
        'Draw interface into master, given a list of submaster names'
 
        self.subnames = subnames
 
        frame = Frame(master, bg='black')
 
        self.listbox = ScrolledListBox(frame, scrollbar='y', bg='black')
 
        self.listbox.listbox.bind("<<ListboxSelect>>", self.listbox_cb, add=1)
 
        self.listbox.listbox.configure(font=stdfont, exportselection=0, 
 
            selectmode=BROWSE, bg='black', fg='white', 
 
            selectbackground=self.color)
 
        self.listbox.vsb.configure(troughcolor=self.color)
 
        # self.listbox.listbox.insert(END, "disconnected")
 
        for s in subnames:
 
            self.listbox.listbox.insert(END, s)
 
        statframe = Frame(frame, bg='black')
 

	
 
        self.statuslabel = Label(statframe, text="No sync", width=15, 
 
            font=stdfont)
 
        self.statuslabel.grid(columnspan=2, sticky=W)
 
        ilabel = Label(statframe, text="Input", fg='blue', font=stdfont)
 
        ilabel.grid(row=1, sticky=W)
 
        extlabel = Label(statframe, textvariable=self.extlevel, width=5, 
 
            font=stdfont)
 
        extlabel.grid(row=1, column=1)
 
        rlabel = Label(statframe, text="Real", font=stdfont)
 
        rlabel.grid(row=2, sticky=W)
 
        self.sublabel = Label(statframe, text="N/A", width=5, font=stdfont)
 
        self.sublabel.grid(row=2, column=1)
 
        disc_button = Button(statframe, text="Disconnect", 
 
            command=self.disconnect, padx=0, pady=0, font=stdfont)
 
        disc_button.grid(row=3, columnspan=2)
 
        statframe.pack(side=BOTTOM, expand=1, fill=BOTH)
 
        self.listbox.pack(expand=1, fill=BOTH)
 
        frame.pack(side=LEFT, expand=1, fill=BOTH)
 

	
 
        self.widgets = [frame, self.listbox, statframe, self.statuslabel, 
 
                        ilabel, extlabel, rlabel, self.sublabel, disc_button]
 

	
 
class ExtSliderMapper(Frame):
 
    def __init__(self, parent, sliderlevels, sliderinput, 
 
                 lightboard, filename='slidermapping', numsliders=4):
 
    def __init__(self, parent, sliderlevels, sliderinput, filename='slidermapping',
 
                 numsliders=4):
 
        'Slider levels is scalelevels, sliderinput is an ExternalInput object'
 
        Frame.__init__(self, parent, bg='black')
 
        Frame.__init__(self, parent)
 
        self.parent = parent
 
        self.sliderlevels = sliderlevels
 
        self.sliderinput = sliderinput
 
        self.filename = filename
 
        self.numsliders = numsliders
 
        self.lightboard = lightboard
 
        self.file = None
 

	
 
        # don't call setup, let them do that when scalelevels is created
 
    def setup(self):
 
        self.subnames = self.sliderlevels.keys()
 
        self.subnames.sort()
 
        self.presets = {}
 
        self.load_presets()
 

	
 
        self.current_preset = StringVar() # name of current preset
 
        self.current_mappings = []
 
        for i, color in zip(range(self.numsliders), colors):
 
            self.current_mappings.append(SliderMapping(color))
 
        self.current_mapping_name = StringVar()
 
        self.current_mapping = []
 
        self.attached = []
 
        self.levels_read = []
 
        for i in range(self.numsliders):
 
            cm_var = StringVar()
 
            cm_var.set('disconnected')
 
            self.current_mapping.append(cm_var)
 
            self.attached.append(BooleanVar())
 
            self.levels_read.append(DoubleVar())
 

	
 
        self.reallevellabels = []
 
        self.draw_interface()
 
    def load_presets(self, *args):
 
        self.presets = {}
 
    def load_presets(self):
 
        self.file = open(self.filename, 'r')
 
        lines = self.file.readlines()
 
        for l in lines:
 
            tokens = l[:-1].split('\t')
 
            name = tokens.pop(0)
 
            self.presets[name] = tokens
 
        self.file.close()
 
        if args: # called from callback
 
            self.draw_interface()
 
    def save_presets(self):
 
        self.file = open(self.filename, 'w')
 
        self.file.seek(0)
 
        preset_names = self.presets.keys()
 
        preset_names.sort()
 
        for p in preset_names:
 
            s = '\t'.join([p] + self.presets[p]) + '\n'
 
            self.file.write(s)
 
        self.file.close()
 
    def load_scalelevels(self):
 
        for slidermap in self.current_mappings:
 
        for m, rll, levread, att in zip(self.current_mapping, self.reallevellabels, 
 
                                        self.levels_read, self.attached):
 
            try:
 
                v = self.sliderlevels[slidermap.get_mapping()]
 
                slidermap.set_sublevel_var(v)
 
                # print "ESM: Yes submaster named", slidermap.get_mapping()
 
                v = self.sliderlevels[m.get()] # actual scalelevel variable
 
                rll.configure(textvariable=v)
 
                if levread.get() >= v.get():   # attach if physical goes above virtual
 
                    att.set(1)
 
            except KeyError:
 
                name = slidermap.get_mapping()
 
                if name != 'disconnected':
 
                    print "ESM: No submaster named", name
 
                pass
 
                
 
    def get_levels(self):
 
        'Called by changelevels, returns a dict of new values for submasters'
 
        'To be called by changelevels, I think'
 
        if not self.current_mapping_name: return {}
 
        if not self.sliderinput: return {}
 

	
 
        self.load_scalelevels() # freshen our input from the submasters
 

	
 
        for m, color in zip(self.current_mappings, colors):
 
            name = m.get_mapping()
 
            lastsub = self.subs_highlighted.get(color)
 
            if name is not lastsub:
 
                if lastsub is not None:
 
                    try: 
 
                        self.lightboard.highlight_sub(lastsub, 'restore')
 
                    except KeyError:
 
                        pass
 
                try:
 
                    self.lightboard.highlight_sub(name, color)
 
                except KeyError:
 
                    pass
 
                self.subs_highlighted[color] = name
 
        self.load_scalelevels()
 

	
 
        rawlevels = self.sliderinput.get_levels()
 
        for rawlev, slidermap in zip(rawlevels, self.current_mappings):
 
            slidermap.changed_extinput(rawlev)
 
        for rawlev, levlabvar in zip(rawlevels, self.levels_read):
 
            levlabvar.set(rawlev)
 
        outputlevels = {}
 
        return dict([(name.get(), lev) 
 
            for name, lev, att in zip(self.current_mapping, 
 
                                      rawlevels, 
 
                                      self.attached) 
 
            if att.get()])
 

	
 
        return dict([m.get_level_pair()
 
            for m in self.current_mappings
 
            if m.issynced()])
 
    def draw_interface(self):
 
        self.subs_highlighted = {}
 
        subchoiceframe = Frame(self, bg='black')
 
        for m in self.current_mappings:
 
            m.draw_interface(subchoiceframe, self.subnames)
 
        self.reallevellabels = []
 
        subchoiceframe = Frame(self)
 
        for i, mapping, isattached, lev in zip(range(self.numsliders), 
 
                                               self.current_mapping, 
 
                                               self.attached,
 
                                               self.levels_read):
 
            f = Frame(subchoiceframe)
 
            # Label(f, text="Slider %d" % (i+1)).pack(side=LEFT)
 
            c = ComboBox(f, variable=mapping)
 
            c.slistbox.listbox.insert(END, "disconnected")
 
            for s in self.subnames:
 
                c.slistbox.listbox.insert(END, s)
 
            c.entry.configure(width=12)
 
            statframe = Frame(f)
 
            Checkbutton(statframe, variable=isattached, 
 
                text="Attached").grid(columnspan=2, sticky=W)
 
            Label(statframe, text="Input", fg='red').grid(row=1, sticky=W)
 
            Label(statframe, textvariable=lev, fg='red', width=5).grid(row=1, column=1)
 
            Label(statframe, text="Real").grid(row=2, sticky=W)
 
            l = Label(statframe, text="N/A", width=5)
 
            l.grid(row=2, column=1)
 
            self.reallevellabels.append(l)
 
            statframe.pack(side=BOTTOM, expand=1, fill=X)
 
            c.pack()
 
            f.pack(side=LEFT, expand=1, fill=BOTH)
 
        subchoiceframe.pack()
 
        
 
        presetframe = Frame(self, bg='black')
 
        Label(presetframe, text="Preset:", font=('Arial', 10), bg='black', 
 
            fg='white').pack(side=LEFT)
 
        self.presetcombo = ComboBox(presetframe, variable=self.current_preset, 
 
                                    editable=1, command=self.apply_preset,
 
                                    dropdown=1)
 
        self.presetcombo.slistbox.configure(bg='black')
 
        self.presetcombo.slistbox.listbox.configure(bg='black', fg='white')
 
        self.presetcombo.entry.configure(bg='black', fg='white')
 
        presetframe = Frame(self)
 
        Label(presetframe, text="Preset:").pack(side=LEFT)
 
        self.presetcombo = ComboBox(presetframe, variable=self.current_mapping_name, 
 
                                    editable=1, command=self.apply_preset)
 
        self.draw_presets()
 
        self.presetcombo.pack(side=LEFT)
 
        Button(presetframe, text="Prev", padx=0, pady=0, bg='black', 
 
                fg='white', font=stdfont, 
 
                command=self.prev_preset).pack(side=LEFT)
 
        Button(presetframe, text="Next", padx=0, pady=0, bg='black', 
 
                fg='white', font=stdfont, 
 
                command=self.next_preset).pack(side=LEFT)
 
        Button(presetframe, text="Add", padx=0, pady=0, bg='black', 
 
                fg='white', font=stdfont, 
 
        Button(presetframe, text="Add", padx=0, pady=0, 
 
                command=self.add_preset).pack(side=LEFT)
 
        Button(presetframe, text="Delete", padx=0, pady=0, bg='black', 
 
                fg='white', font=stdfont,
 
        Button(presetframe, text="Delete", padx=0, pady=0, 
 
                command=self.delete_preset).pack(side=LEFT)
 
        Button(presetframe, text="Disconnect", padx=0, pady=0, bg='black', 
 
                fg='white', font=stdfont,
 
                command=self.disconnect_all).pack(side=LEFT)
 
        Button(presetframe, text="Reload", padx=0, pady=0, bg='black', 
 
                fg='white', font=stdfont,
 
                command=self.load_presets).pack(side=LEFT)
 
        presetframe.pack(side=BOTTOM)
 
    def apply_preset(self, preset):
 
        if not preset: return
 
        preset_mapping = self.presets.get(preset)
 
        if not preset_mapping: return
 
        self.disconnect_all()
 
        for subname, slidermap in zip(preset_mapping, self.current_mappings):
 
            slidermap.set_subname(subname)
 
    def change_preset_by_index(self, delta):
 
        preset_names = self.presets.keys()
 
        preset_names.sort()
 
        try:
 
            next = preset_names[preset_names.index(self.current_preset.get())
 
                + delta]
 
            self.current_preset.set(next)
 
            self.apply_preset(next)
 
        except (IndexError, ValueError):
 
            print "Light 8.8: Can't go in that direction.  Dig up!"
 
    def next_preset(self, *args):
 
        self.change_preset_by_index(1)
 
    def prev_preset(self, *args):
 
        self.change_preset_by_index(-1)
 
        mapping = self.presets.get(preset)
 
        if not mapping: return
 
        for name, var, att in zip(mapping, self.current_mapping, self.attached):
 
            var.set(name)
 
            att.set(0) # detach all sliders
 
    def delete_preset(self, *args):
 
        del self.presets[self.current_preset.get()]
 
        del self.presets[self.current_mapping_name.get()]
 
        self.presetcombo.slistbox.listbox.delete(0, END)
 
        self.draw_presets()
 
        self.save_presets()
 
    def add_preset(self, *args):
 
        self.presets[self.current_preset.get()] = [m.get_mapping() 
 
                for m in self.current_mappings]
 
        self.presets[self.current_mapping_name.get()] = [m.get() 
 
                for m in self.current_mapping]
 
        self.presetcombo.slistbox.listbox.delete(0, END)
 
        self.draw_presets()
 
        self.save_presets()
 
        self.draw_interface()
 
    def draw_presets(self):
 
        preset_names = self.presets.keys()
 
        preset_names.sort()
 
        for p in preset_names:
 
            self.presetcombo.slistbox.listbox.insert(END, p)
 
    def disconnect_all(self):
 
        for m in self.current_mappings:
 
            m.disconnect()
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