channel.py

   1 # This file is part of jack_mixer
   2 #
   3 # Copyright (C) 2006 Nedko Arnaudov <nedko@arnaudov.name>
   4 #
   5 # This program is free software; you can redistribute it and/or modify
   6 # it under the terms of the GNU General Public License as published by
   7 # the Free Software Foundation; version 2 of the License
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program; if not, write to the Free Software
  16 # Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  17
  18 import gtk
  19 import gobject
  20 import glib
  21 import slider
  22 import meter
  23 import abspeak
  24 from serialization import SerializedObject
  25
  26 try:
  27     import phat
  28 except:
  29     phat = None
  30
  31
  32 class Channel(gtk.VBox, SerializedObject):
  33     '''Widget with slider and meter used as base class for more specific
  34        channel widgets'''
  35     monitor_button = None
  36
  37     def __init__(self, app, name, stereo):
  38         gtk.VBox.__init__(self)
  39         self.app = app
  40         self.mixer = app.mixer
  41         self.gui_factory = app.gui_factory
  42         self._channel_name = name
  43         self.stereo = stereo
  44         self.meter_scale = self.gui_factory.get_default_meter_scale()
  45         self.slider_scale = self.gui_factory.get_default_slider_scale()
  46         self.slider_adjustment = slider.AdjustmentdBFS(self.slider_scale, 0.0)
  47         self.balance_adjustment = gtk.Adjustment(0.0, -1.0, 1.0, 0.02)
  48         self.future_volume_midi_cc = None
  49         self.future_balance_midi_cc = None
  50
  51     def get_channel_name(self):
  52         return self._channel_name
  53
  54     label_name = None
  55     channel = None
  56     post_fader_output_channel = None
  57     def set_channel_name(self, name):
  58         self.app.on_channel_rename(self._channel_name, name);
  59         self._channel_name = name
  60         if self.label_name:
  61             self.label_name.set_text(name)
  62         if self.channel:
  63             self.channel.name = name
  64         if self.post_fader_output_channel:
  65             self.post_fader_output_channel.name = "%s Out" % name;
  66     channel_name = property(get_channel_name, set_channel_name)
  67
  68     def realize(self):
  69         #print "Realizing channel \"%s\"" % self.channel_name
  70
  71         self.slider_adjustment.connect("volume-changed", self.on_volume_changed)
  72         self.balance_adjustment.connect("value-changed", self.on_balance_changed)
  73
  74         self.slider = None
  75         self.create_slider_widget()
  76
  77         if self.stereo:
  78             self.meter = meter.StereoMeterWidget(self.meter_scale)
  79         else:
  80             self.meter = meter.MonoMeterWidget(self.meter_scale)
  81         self.on_vumeter_color_changed(self.gui_factory)
  82
  83         self.meter.set_events(gtk.gdk.SCROLL_MASK)
  84
  85         self.gui_factory.connect("default-meter-scale-changed", self.on_default_meter_scale_changed)
  86         self.gui_factory.connect("default-slider-scale-changed", self.on_default_slider_scale_changed)
  87         self.gui_factory.connect('vumeter-color-changed', self.on_vumeter_color_changed)
  88         self.gui_factory.connect('vumeter-color-scheme-changed', self.on_vumeter_color_changed)
  89         self.gui_factory.connect('use-custom-widgets-changed', self.on_custom_widgets_changed)
  90
  91         self.abspeak = abspeak.AbspeakWidget()
  92         self.abspeak.connect("reset", self.on_abspeak_reset)
  93         self.abspeak.connect("volume-adjust", self.on_abspeak_adjust)
  94
  95         self.volume_digits = gtk.Entry()
  96         self.volume_digits.connect("key-press-event", self.on_volume_digits_key_pressed)
  97         self.volume_digits.connect("focus-out-event", self.on_volume_digits_focus_out)
  98
  99         self.connect("key-press-event", self.on_key_pressed)
 100         self.connect("scroll-event", self.on_scroll)
 101
 102     def unrealize(self):
 103         #print "Unrealizing channel \"%s\"" % self.channel_name
 104         pass
 105
 106     def create_balance_widget(self):
 107         if self.gui_factory.use_custom_widgets and phat:
 108             self.balance = phat.HFanSlider()
 109             self.balance.set_default_value(0)
 110             self.balance.set_adjustment(self.balance_adjustment)
 111         else:
 112             self.balance = gtk.HScale(self.balance_adjustment)
 113             self.balance.set_draw_value(False)
 114         self.pack_start(self.balance, False)
 115         if self.monitor_button:
 116             self.reorder_child(self.monitor_button, -1)
 117         self.balance.show()
 118
 119     def create_slider_widget(self):
 120         parent = None
 121         if self.slider:
 122             parent = self.slider.get_parent()
 123             self.slider.destroy()
 124         if self.gui_factory.use_custom_widgets:
 125             self.slider = slider.CustomSliderWidget(self.slider_adjustment)
 126         else:
 127             self.slider = slider.GtkSlider(self.slider_adjustment)
 128         if parent:
 129             parent.pack_start(self.slider)
 130             parent.reorder_child(self.slider, 0)
 131         self.slider.show()
 132
 133     def on_default_meter_scale_changed(self, gui_factory, scale):
 134         #print "Default meter scale change detected."
 135         self.meter.set_scale(scale)
 136
 137     def on_default_slider_scale_changed(self, gui_factory, scale):
 138         #print "Default slider scale change detected."
 139         self.slider_scale = scale
 140         self.slider_adjustment.set_scale(scale)
 141         self.channel.midi_scale = self.slider_scale.scale
 142
 143     def on_vumeter_color_changed(self, gui_factory, *args):
 144         color = gui_factory.get_vumeter_color()
 145         color_scheme = gui_factory.get_vumeter_color_scheme()
 146         if color_scheme != 'solid':
 147             self.meter.set_color(None)
 148         else:
 149             self.meter.set_color(gtk.gdk.color_parse(color))
 150
 151     def on_custom_widgets_changed(self, gui_factory, value):
 152         self.balance.destroy()
 153         self.create_balance_widget()
 154         self.create_slider_widget()
 155
 156     def on_abspeak_adjust(self, abspeak, adjust):
 157         #print "abspeak adjust %f" % adjust
 158         self.slider_adjustment.set_value_db(self.slider_adjustment.get_value_db() + adjust)
 159         self.channel.abspeak = None
 160         #self.update_volume(False)   # We want to update gui even if actual decibels have not changed (scale wrap for example)
 161
 162     def on_abspeak_reset(self, abspeak):
 163         #print "abspeak reset"
 164         self.channel.abspeak = None
 165
 166     def on_volume_digits_key_pressed(self, widget, event):
 167         if (event.keyval == gtk.keysyms.Return or event.keyval == gtk.keysyms.KP_Enter):
 168             db_text = self.volume_digits.get_text()
 169             try:
 170                 db = float(db_text)
 171                 #print "Volume digits confirmation \"%f dBFS\"" % db
 172             except (ValueError), e:
 173                 #print "Volume digits confirmation ignore, reset to current"
 174                 self.update_volume(False)
 175                 return
 176             self.slider_adjustment.set_value_db(db)
 177             #self.grab_focus()
 178             #self.update_volume(False)   # We want to update gui even if actual decibels have not changed (scale wrap for example)
 179
 180     def on_volume_digits_focus_out(self, widget, event):
 181         #print "volume digits focus out detected"
 182         self.update_volume(False)
 183
 184     def read_meter(self):
 185         if not self.channel:
 186             return
 187         if self.stereo:
 188             meter_left, meter_right = self.channel.meter
 189             self.meter.set_values(meter_left, meter_right)
 190         else:
 191             self.meter.set_value(self.channel.meter[0])
 192
 193         self.abspeak.set_peak(self.channel.abspeak)
 194
 195     def on_scroll(self, widget, event):
 196         if event.direction == gtk.gdk.SCROLL_DOWN:
 197             self.slider_adjustment.step_down()
 198         elif event.direction == gtk.gdk.SCROLL_UP:
 199             self.slider_adjustment.step_up()
 200         return True
 201
 202     def update_volume(self, update_engine):
 203         db = self.slider_adjustment.get_value_db()
 204
 205         db_text = "%.2f" % db
 206         self.volume_digits.set_text(db_text)
 207
 208         if update_engine:
 209             #print "Setting engine volume to " + db_text
 210             self.channel.volume = db
 211             self.app.update_monitor(self)
 212
 213     def on_volume_changed(self, adjustment):
 214         self.update_volume(True)
 215
 216     def on_balance_changed(self, adjustment):
 217         balance = self.balance_adjustment.get_value()
 218         #print "%s balance: %f" % (self.channel_name, balance)
 219         self.channel.balance = balance
 220         self.app.update_monitor(self)
 221
 222     def on_key_pressed(self, widget, event):
 223         if (event.keyval == gtk.keysyms.Up):
 224             #print self.channel_name + " Up"
 225             self.slider_adjustment.step_up()
 226             return True
 227         elif (event.keyval == gtk.keysyms.Down):
 228             #print self.channel_name + " Down"
 229             self.slider_adjustment.step_down()
 230             return True
 231
 232         return False
 233
 234     def serialize(self, object_backend):
 235         object_backend.add_property("volume", "%f" % self.slider_adjustment.get_value_db())
 236         object_backend.add_property("balance", "%f" % self.balance_adjustment.get_value())
 237
 238         if self.channel.volume_midi_cc:
 239             object_backend.add_property('volume_midi_cc', str(self.channel.volume_midi_cc))
 240         if self.channel.balance_midi_cc:
 241             object_backend.add_property('balance_midi_cc', str(self.channel.balance_midi_cc))
 242
 243     def unserialize_property(self, name, value):
 244         if name == "volume":
 245             self.slider_adjustment.set_value_db(float(value))
 246             return True
 247         if name == "balance":
 248             self.balance_adjustment.set_value(float(value))
 249             return True
 250         if name == 'volume_midi_cc':
 251             self.future_volume_midi_cc = int(value)
 252             return True
 253         if name == 'balance_midi_cc':
 254             self.future_balance_midi_cc = int(value)
 255             return True
 256         return False
 257
 258     def midi_events_check(self):
 259         if self.channel.midi_got_events:
 260             self.slider_adjustment.set_value_db(self.channel.volume)
 261             self.balance_adjustment.set_value(self.channel.balance)
 262
 263     def on_midi_event_received(self, *args):
 264         self.slider_adjustment.set_value_db(self.channel.volume)
 265         self.balance_adjustment.set_value(self.channel.balance)
 266
 267     def on_monitor_button_toggled(self, button):
 268         if not button.get_active():
 269             self.app.main_mix.monitor_button.set_active(True)
 270         else:
 271             for channel in self.app.channels + self.app.output_channels + [self.app.main_mix]:
 272                 if channel.monitor_button.get_active() and channel.monitor_button is not button:
 273                     channel.monitor_button.handler_block_by_func(
 274                                 channel.on_monitor_button_toggled)
 275                     channel.monitor_button.set_active(False)
 276                     channel.monitor_button.handler_unblock_by_func(
 277                                 channel.on_monitor_button_toggled)
 278             self.app.set_monitored_channel(self)
 279
 280     def set_monitored(self):
 281         if self.channel:
 282             self.app.set_monitored_channel(self)
 283         self.monitor_button.set_active(True)
 284
 285 class InputChannel(Channel):
 286     post_fader_output_channel = None
 287
 288     def __init__(self, app, name, stereo):
 289         Channel.__init__(self, app, name, stereo)
 290
 291     def realize(self):
 292         self.channel = self.mixer.add_channel(self.channel_name, self.stereo)
 293         if self.channel == None:
 294             raise Exception,"Cannot create a channel"
 295         Channel.realize(self)
 296         if self.future_volume_midi_cc:
 297             self.channel.volume_midi_cc = self.future_volume_midi_cc
 298         if self.future_balance_midi_cc:
 299             self.channel.balance_midi_cc = self.future_balance_midi_cc
 300         self.channel.midi_scale = self.slider_scale.scale
 301
 302         self.on_volume_changed(self.slider_adjustment)
 303         self.on_balance_changed(self.balance_adjustment)
 304
 305         # vbox child at upper part
 306         self.vbox = gtk.VBox()
 307         self.pack_start(self.vbox, False)
 308         self.label_name = gtk.Label()
 309         self.label_name.set_text(self.channel_name)
 310         self.label_name.set_size_request(0, -1)
 311         self.label_name_event_box = gtk.EventBox()
 312         self.label_name_event_box.connect("button-press-event", self.on_label_mouse)
 313         self.label_name_event_box.add(self.label_name)
 314         self.vbox.pack_start(self.label_name_event_box, True)
 315 #         self.label_stereo = gtk.Label()
 316 #         if self.stereo:
 317 #             self.label_stereo.set_text("stereo")
 318 #         else:
 319 #             self.label_stereo.set_text("mono")
 320 #         self.label_stereo.set_size_request(0, -1)
 321 #         self.vbox.pack_start(self.label_stereo, True)
 322
 323         # hbox for mute and solo buttons
 324         self.hbox_mutesolo = gtk.HBox()
 325
 326         self.mute = gtk.ToggleButton()
 327         self.mute.set_label("M")
 328         self.mute.set_active(self.channel.mute)
 329         self.mute.connect("button-press-event", self.on_mute_button_pressed)
 330         self.mute.connect("toggled", self.on_mute_toggled)
 331         self.hbox_mutesolo.pack_start(self.mute, True)
 332
 333         self.solo = gtk.ToggleButton()
 334         self.solo.set_label("S")
 335         self.solo.set_active(self.channel.solo)
 336         self.solo.connect("button-press-event", self.on_solo_button_pressed)
 337         self.solo.connect("toggled", self.on_solo_toggled)
 338         self.hbox_mutesolo.pack_start(self.solo, True)
 339
 340         self.vbox.pack_start(self.hbox_mutesolo, False)
 341
 342         frame = gtk.Frame()
 343         frame.set_shadow_type(gtk.SHADOW_IN)
 344         frame.add(self.abspeak);
 345         self.pack_start(frame, False)
 346
 347         # hbox child at lower part
 348         self.hbox = gtk.HBox()
 349         self.hbox.pack_start(self.slider, True)
 350         frame = gtk.Frame()
 351         frame.set_shadow_type(gtk.SHADOW_IN)
 352         frame.add(self.meter);
 353         self.hbox.pack_start(frame, True)
 354         frame = gtk.Frame()
 355         frame.set_shadow_type(gtk.SHADOW_IN)
 356         frame.add(self.hbox);
 357         self.pack_start(frame, True)
 358
 359         self.volume_digits.set_size_request(0, -1)
 360         self.pack_start(self.volume_digits, False)
 361
 362         self.create_balance_widget()
 363
 364         self.monitor_button = gtk.ToggleButton('MON')
 365         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 366         self.pack_start(self.monitor_button, False, False)
 367
 368     def add_control_group(self, channel):
 369         control_group = ControlGroup(channel, self)
 370         control_group.show_all()
 371         self.vbox.pack_start(control_group, False)
 372         return control_group
 373
 374     def remove_control_group(self, channel):
 375         ctlgroup = self.get_control_group(channel)
 376         self.vbox.remove(ctlgroup)
 377
 378     def update_control_group(self, channel):
 379         for control_group in self.vbox.get_children():
 380             if isinstance(control_group, ControlGroup):
 381                 if control_group.output_channel is channel:
 382                     control_group.update()
 383
 384     def get_control_group(self, channel):
 385         for control_group in self.vbox.get_children():
 386             if isinstance(control_group, ControlGroup):
 387                 if control_group.output_channel is channel:
 388                     return control_group
 389         return None
 390
 391     def unrealize(self):
 392         Channel.unrealize(self)
 393         if self.post_fader_output_channel:
 394             self.post_fader_output_channel.remove()
 395             self.post_fader_output_channel = None
 396         self.channel.remove()
 397         self.channel = None
 398
 399     channel_properties_dialog = None
 400     def on_channel_properties(self):
 401         if not self.channel_properties_dialog:
 402             self.channel_properties_dialog = ChannelPropertiesDialog(self, self.app)
 403         self.channel_properties_dialog.show()
 404         self.channel_properties_dialog.present()
 405
 406     def on_label_mouse(self, widget, event):
 407         if event.type == gtk.gdk._2BUTTON_PRESS:
 408             if event.button == 1:
 409                 self.on_channel_properties()
 410
 411     def on_mute_toggled(self, button):
 412         self.channel.mute = self.mute.get_active()
 413         self.app.update_monitor(self.app.main_mix)
 414
 415     def on_mute_button_pressed(self, button, event, *args):
 416         if event.button == 3:
 417             # right click on the mute button, act on all output channels
 418             if button.get_active(): # was muted
 419                 button.set_active(False)
 420                 if hasattr(button, 'touched_channels'):
 421                     touched_channels = button.touched_channels
 422                     for chan in touched_channels:
 423                         ctlgroup = self.get_control_group(chan)
 424                         ctlgroup.mute.set_active(False)
 425                     del button.touched_channels
 426             else: # was not muted
 427                 button.set_active(True)
 428                 touched_channels = []
 429                 for chan in self.app.output_channels:
 430                     ctlgroup = self.get_control_group(chan)
 431                     if not ctlgroup.mute.get_active():
 432                         ctlgroup.mute.set_active(True)
 433                         touched_channels.append(chan)
 434                 button.touched_channels = touched_channels
 435             return True
 436         return False
 437
 438     def on_solo_toggled(self, button):
 439         self.channel.solo = self.solo.get_active()
 440         self.app.update_monitor(self.app.main_mix)
 441
 442     def on_solo_button_pressed(self, button, event, *args):
 443         if event.button == 3:
 444             # right click on the solo button, act on all output channels
 445             if button.get_active(): # was soloed
 446                 button.set_active(False)
 447                 if hasattr(button, 'touched_channels'):
 448                     touched_channels = button.touched_channels
 449                     for chan in touched_channels:
 450                         ctlgroup = self.get_control_group(chan)
 451                         ctlgroup.solo.set_active(False)
 452                     del button.touched_channels
 453             else: # was not soloed
 454                 button.set_active(True)
 455                 touched_channels = []
 456                 for chan in self.app.output_channels:
 457                     ctlgroup = self.get_control_group(chan)
 458                     if not ctlgroup.solo.get_active():
 459                         ctlgroup.solo.set_active(True)
 460                         touched_channels.append(chan)
 461                 button.touched_channels = touched_channels
 462             return True
 463         return False
 464
 465     @classmethod
 466     def serialization_name(cls):
 467         return 'input_channel'
 468
 469     def serialize(self, object_backend):
 470         object_backend.add_property("name", self.channel_name)
 471         if self.stereo:
 472             object_backend.add_property("type", "stereo")
 473         else:
 474             object_backend.add_property("type", "mono")
 475         Channel.serialize(self, object_backend)
 476
 477     def unserialize_property(self, name, value):
 478         if name == "name":
 479             self.channel_name = str(value)
 480             return True
 481         if name == "type":
 482             if value == "stereo":
 483                 self.stereo = True
 484                 return True
 485             if value == "mono":
 486                 self.stereo = False
 487                 return True
 488         return Channel.unserialize_property(self, name, value)
 489
 490
 491 available_colours = [
 492     ('#ef2929', '#cc0000', '#840000'),
 493     ('#729fcf', '#3465a4', '#204a67'),
 494     ('#8aa234', '#73d216', '#4e7a06'),
 495     ('#fce84f', '#edd400', '#c48000'),
 496     ('#fcaf3e', '#f57900', '#ae5c00'),
 497     ('#ad7fa8', '#75507b', '#4c3556'),
 498     ('#e9b96e', '#c17d11', '#6f4902'),
 499 ]
 500
 501 class OutputChannel(Channel):
 502     colours = available_colours[:]
 503     _display_solo_buttons = False
 504
 505     _init_muted_channels = None
 506     _init_solo_channels = None
 507
 508     def __init__(self, app, name, stereo):
 509         Channel.__init__(self, app, name, stereo)
 510
 511     def get_display_solo_buttons(self):
 512         return self._display_solo_buttons
 513
 514     def set_display_solo_buttons(self, value):
 515         self._display_solo_buttons = value
 516         # notifying control groups
 517         for inputchannel in self.app.channels:
 518             inputchannel.update_control_group(self)
 519
 520     display_solo_buttons = property(get_display_solo_buttons, set_display_solo_buttons)
 521
 522     def realize(self):
 523         Channel.realize(self)
 524         self.channel = self.mixer.add_output_channel(self.channel_name, self.stereo)
 525         if self.channel == None:
 526             raise Exception,"Cannot create a channel"
 527         Channel.realize(self)
 528
 529         self.channel.midi_scale = self.slider_scale.scale
 530
 531         self.on_volume_changed(self.slider_adjustment)
 532         self.on_balance_changed(self.balance_adjustment)
 533
 534         # vbox child at upper part
 535         self.vbox = gtk.VBox()
 536         self.pack_start(self.vbox, False)
 537         self.label_name = gtk.Label()
 538         self.label_name.set_text(self.channel_name)
 539         self.label_name.set_size_request(0, -1)
 540         self.label_name_event_box = gtk.EventBox()
 541         self.label_name_event_box.connect('button-press-event', self.on_label_mouse)
 542         self.label_name_event_box.add(self.label_name)
 543         if not self.colours:
 544             OutputChannel.colours = available_colours[:]
 545         for color in self.colours:
 546             self.color_tuple = [gtk.gdk.color_parse(color[x]) for x in range(3)]
 547             self.colours.remove(color)
 548             break
 549         self.label_name_event_box.modify_bg(gtk.STATE_NORMAL, self.color_tuple[1])
 550         self.vbox.pack_start(self.label_name_event_box, True)
 551         frame = gtk.Frame()
 552         frame.set_shadow_type(gtk.SHADOW_IN)
 553         frame.add(self.abspeak);
 554         self.vbox.pack_start(frame, False)
 555
 556         # hbox child at lower part
 557         self.hbox = gtk.HBox()
 558         self.hbox.pack_start(self.slider, True)
 559         frame = gtk.Frame()
 560         frame.set_shadow_type(gtk.SHADOW_IN)
 561         frame.add(self.meter);
 562         self.hbox.pack_start(frame, True)
 563         frame = gtk.Frame()
 564         frame.set_shadow_type(gtk.SHADOW_IN)
 565         frame.add(self.hbox);
 566         self.pack_start(frame, True)
 567
 568         self.volume_digits.set_size_request(0, -1)
 569         self.pack_start(self.volume_digits, False)
 570
 571         self.create_balance_widget()
 572
 573         self.monitor_button = gtk.ToggleButton('MON')
 574         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 575         self.pack_start(self.monitor_button, False, False)
 576
 577         # add control groups to the input channels, and initialize them
 578         # appropriately
 579         for input_channel in self.app.channels:
 580             ctlgroup = input_channel.add_control_group(self)
 581             if self._init_muted_channels and input_channel.channel.name in self._init_muted_channels:
 582                 ctlgroup.mute.set_active(True)
 583             if self._init_solo_channels and input_channel.channel.name in self._init_solo_channels:
 584                 ctlgroup.solo.set_active(True)
 585         self._init_muted_channels = None
 586         self._init_solo_channels = None
 587
 588     channel_properties_dialog = None
 589     def on_channel_properties(self):
 590         if not self.channel_properties_dialog:
 591             self.channel_properties_dialog = OutputChannelPropertiesDialog(self, self.app)
 592         self.channel_properties_dialog.show()
 593         self.channel_properties_dialog.present()
 594
 595     def on_label_mouse(self, widget, event):
 596         if event.type == gtk.gdk._2BUTTON_PRESS:
 597             if event.button == 1:
 598                 self.on_channel_properties()
 599
 600     def unrealize(self):
 601         # remove control groups from input channels
 602         for input_channel in self.app.channels:
 603             input_channel.remove_control_group(self)
 604         # then remove itself
 605         Channel.unrealize(self)
 606         self.channel.remove()
 607         self.channel = None
 608
 609     @classmethod
 610     def serialization_name(cls):
 611         return 'output_channel'
 612
 613     def serialize(self, object_backend):
 614         object_backend.add_property("name", self.channel_name)
 615         if self.stereo:
 616             object_backend.add_property("type", "stereo")
 617         else:
 618             object_backend.add_property("type", "mono")
 619         if self.display_solo_buttons:
 620             object_backend.add_property("solo_buttons", "true")
 621         muted_channels = []
 622         solo_channels = []
 623         for input_channel in self.app.channels:
 624             if self.channel.is_muted(input_channel.channel):
 625                 muted_channels.append(input_channel)
 626             if self.channel.is_solo(input_channel.channel):
 627                 solo_channels.append(input_channel)
 628         if muted_channels:
 629             object_backend.add_property('muted_channels', '|'.join([x.channel.name for x in muted_channels]))
 630         if solo_channels:
 631             object_backend.add_property('solo_channels', '|'.join([x.channel.name for x in solo_channels]))
 632         Channel.serialize(self, object_backend)
 633
 634     def unserialize_property(self, name, value):
 635         if name == "name":
 636             self.channel_name = str(value)
 637             return True
 638         if name == "type":
 639             if value == "stereo":
 640                 self.stereo = True
 641                 return True
 642             if value == "mono":
 643                 self.stereo = False
 644                 return True
 645         if name == "solo_buttons":
 646             if value == "true":
 647                 self.display_solo_buttons = True
 648                 return True
 649         if name == 'muted_channels':
 650             self._init_muted_channels = value.split('|')
 651             return True
 652         if name == 'solo_channels':
 653             self._init_solo_channels = value.split('|')
 654             return True
 655         return Channel.unserialize_property(self, name, value)
 656
 657 class MainMixChannel(Channel):
 658     _init_muted_channels = None
 659     _init_solo_channels = None
 660
 661     def __init__(self, app):
 662         Channel.__init__(self, app, "MAIN", True)
 663
 664     def realize(self):
 665         Channel.realize(self)
 666         self.channel = self.mixer.main_mix_channel
 667         self.channel.midi_scale = self.slider_scale.scale
 668
 669         self.on_volume_changed(self.slider_adjustment)
 670         self.on_balance_changed(self.balance_adjustment)
 671
 672         # vbox child at upper part
 673         self.vbox = gtk.VBox()
 674         self.pack_start(self.vbox, False)
 675         self.label_name = gtk.Label()
 676         self.label_name.set_text(self.channel_name)
 677         self.label_name.set_size_request(0, -1)
 678         self.vbox.pack_start(self.label_name, False)
 679         frame = gtk.Frame()
 680         frame.set_shadow_type(gtk.SHADOW_IN)
 681         frame.add(self.abspeak);
 682         self.vbox.pack_start(frame, False)
 683
 684         # hbox child at lower part
 685         self.hbox = gtk.HBox()
 686         self.hbox.pack_start(self.slider, True)
 687         frame = gtk.Frame()
 688         frame.set_shadow_type(gtk.SHADOW_IN)
 689         frame.add(self.meter);
 690         self.hbox.pack_start(frame, True)
 691         frame = gtk.Frame()
 692         frame.set_shadow_type(gtk.SHADOW_IN)
 693         frame.add(self.hbox);
 694         self.pack_start(frame, True)
 695
 696         self.volume_digits.set_size_request(0, -1)
 697         self.pack_start(self.volume_digits, False)
 698
 699         self.create_balance_widget()
 700
 701         self.monitor_button = gtk.ToggleButton('MON')
 702         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 703         self.pack_start(self.monitor_button, False, False)
 704
 705         for input_channel in self.app.channels:
 706             if self._init_muted_channels and input_channel.channel.name in self._init_muted_channels:
 707                 input_channel.mute.set_active(True)
 708             if self._init_solo_channels and input_channel.channel.name in self._init_solo_channels:
 709                 input_channel.solo.set_active(True)
 710         self._init_muted_channels = None
 711         self._init_solo_channels = None
 712
 713     def unrealize(self):
 714         Channel.unrealize(self)
 715         self.channel = False
 716
 717     @classmethod
 718     def serialization_name(cls):
 719         return 'main_mix_channel'
 720
 721     def serialize(self, object_backend):
 722         muted_channels = []
 723         solo_channels = []
 724         for input_channel in self.app.channels:
 725             if input_channel.channel.mute:
 726                 muted_channels.append(input_channel)
 727             if input_channel.channel.solo:
 728                 solo_channels.append(input_channel)
 729         if muted_channels:
 730             object_backend.add_property('muted_channels', '|'.join([x.channel.name for x in muted_channels]))
 731         if solo_channels:
 732             object_backend.add_property('solo_channels', '|'.join([x.channel.name for x in solo_channels]))
 733         Channel.serialize(self, object_backend)
 734
 735     def unserialize_property(self, name, value):
 736         if name == 'muted_channels':
 737             self._init_muted_channels = value.split('|')
 738             return True
 739         if name == 'solo_channels':
 740             self._init_solo_channels = value.split('|')
 741             return True
 742         return Channel.unserialize_property(self, name, value)
 743
 744
 745 class ChannelPropertiesDialog(gtk.Dialog):
 746     channel = None
 747
 748     def __init__(self, parent, app):
 749         self.channel = parent
 750         self.app = app
 751         self.mixer = self.channel.mixer
 752         gtk.Dialog.__init__(self,
 753                         'Channel "%s" Properties' % self.channel.channel_name,
 754                         self.channel.gui_factory.topwindow)
 755
 756         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 757         self.ok_button = self.add_button(gtk.STOCK_APPLY, gtk.RESPONSE_APPLY)
 758         self.set_default_response(gtk.RESPONSE_APPLY);
 759
 760         self.create_ui()
 761         self.fill_ui()
 762
 763         self.connect('response', self.on_response_cb)
 764         self.connect('delete-event', self.on_response_cb)
 765
 766     def create_frame(self, label, child):
 767         frame = gtk.Frame('')
 768         frame.set_border_width(3)
 769         #frame.set_shadow_type(gtk.SHADOW_NONE)
 770         frame.get_label_widget().set_markup('<b>%s</b>' % label)
 771
 772         alignment = gtk.Alignment(0, 0, 1, 1)
 773         alignment.set_padding(0, 0, 12, 0)
 774         frame.add(alignment)
 775         alignment.add(child)
 776
 777         return frame
 778
 779     def create_ui(self):
 780         vbox = gtk.VBox()
 781         self.vbox.add(vbox)
 782
 783         table = gtk.Table(2, 2, False)
 784         vbox.pack_start(self.create_frame('Properties', table))
 785         table.set_row_spacings(5)
 786         table.set_col_spacings(5)
 787
 788         table.attach(gtk.Label('Name'), 0, 1, 0, 1)
 789         self.entry_name = gtk.Entry()
 790         self.entry_name.set_activates_default(True)
 791         self.entry_name.connect('changed', self.on_entry_name_changed)
 792         table.attach(self.entry_name, 1, 2, 0, 1)
 793
 794         table.attach(gtk.Label('Mode'), 0, 1, 1, 2)
 795         self.mode_hbox = gtk.HBox()
 796         table.attach(self.mode_hbox, 1, 2, 1, 2)
 797         self.mono = gtk.RadioButton(label='Mono')
 798         self.stereo = gtk.RadioButton(label='Stereo', group=self.mono)
 799         self.mode_hbox.pack_start(self.mono)
 800         self.mode_hbox.pack_start(self.stereo)
 801
 802         table = gtk.Table(2, 3, False)
 803         vbox.pack_start(self.create_frame('MIDI Control Channels', table))
 804         table.set_row_spacings(5)
 805         table.set_col_spacings(5)
 806
 807         table.attach(gtk.Label('Volume'), 0, 1, 0, 1)
 808         self.entry_volume_cc = gtk.Entry()
 809         self.entry_volume_cc.set_activates_default(True)
 810         self.entry_volume_cc.set_editable(False)
 811         self.entry_volume_cc.set_width_chars(3)
 812         table.attach(self.entry_volume_cc, 1, 2, 0, 1)
 813         self.button_sense_midi_volume = gtk.Button('Autoset')
 814         self.button_sense_midi_volume.connect('clicked',
 815                         self.on_sense_midi_volume_clicked)
 816         table.attach(self.button_sense_midi_volume, 2, 3, 0, 1)
 817
 818         table.attach(gtk.Label('Balance'), 0, 1, 1, 2)
 819         self.entry_balance_cc = gtk.Entry()
 820         self.entry_balance_cc.set_activates_default(True)
 821         self.entry_balance_cc.set_width_chars(3)
 822         self.entry_balance_cc.set_editable(False)
 823         table.attach(self.entry_balance_cc, 1, 2, 1, 2)
 824         self.button_sense_midi_balance = gtk.Button('Autoset')
 825         self.button_sense_midi_balance.connect('clicked',
 826                         self.on_sense_midi_balance_clicked)
 827         table.attach(self.button_sense_midi_balance, 2, 3, 1, 2)
 828
 829         self.vbox.show_all()
 830
 831     def fill_ui(self):
 832         self.entry_name.set_text(self.channel.channel_name)
 833         if self.channel.channel.is_stereo:
 834             self.stereo.set_active(True)
 835         else:
 836             self.mono.set_active(True)
 837         self.mode_hbox.set_sensitive(False)
 838         self.entry_volume_cc.set_text('%s' % self.channel.channel.volume_midi_cc)
 839         self.entry_balance_cc.set_text('%s' % self.channel.channel.balance_midi_cc)
 840
 841     def sense_popup_dialog(self, entry):
 842         window = gtk.Window(gtk.WINDOW_TOPLEVEL)
 843         window.set_destroy_with_parent(True)
 844         window.set_transient_for(self)
 845         window.set_decorated(False)
 846         window.set_modal(True)
 847         window.set_position(gtk.WIN_POS_CENTER_ON_PARENT)
 848         window.set_border_width(10)
 849
 850         vbox = gtk.VBox(10)
 851         window.add(vbox)
 852         window.timeout = 5
 853         vbox.pack_start(gtk.Label('Please move the MIDI control you want to use for this function.'))
 854         timeout_label = gtk.Label('This window will close in 5 seconds')
 855         vbox.pack_start(timeout_label)
 856         def close_sense_timeout(window, entry):
 857             window.timeout -= 1
 858             timeout_label.set_text('This window will close in %d seconds.' % window.timeout)
 859             if window.timeout == 0:
 860                 window.destroy()
 861                 entry.set_text('%s' % self.mixer.last_midi_channel)
 862                 return False
 863             return True
 864         window.show_all()
 865         glib.timeout_add_seconds(1, close_sense_timeout, window, entry)
 866
 867     def on_sense_midi_volume_clicked(self, *args):
 868         self.sense_popup_dialog(self.entry_volume_cc)
 869
 870     def on_sense_midi_balance_clicked(self, *args):
 871         self.sense_popup_dialog(self.entry_balance_cc)
 872
 873     def on_response_cb(self, dlg, response_id, *args):
 874         self.channel.channel_properties_dialog = None
 875         self.destroy()
 876         if response_id == gtk.RESPONSE_APPLY:
 877             name = self.entry_name.get_text()
 878             self.channel.channel_name = name
 879             self.channel.channel.volume_midi_cc = int(self.entry_volume_cc.get_text())
 880             self.channel.channel.balance_midi_cc = int(self.entry_balance_cc.get_text())
 881
 882     def on_entry_name_changed(self, entry):
 883         sensitive = False
 884         if len(entry.get_text()):
 885             if self.channel and self.channel.channel.name == entry.get_text():
 886                 sensitive = True
 887             elif entry.get_text() not in [x.channel.name for x in self.app.channels] + \
 888                         [x.channel.name for x in self.app.output_channels] + ['MAIN']:
 889                 sensitive = True
 890         self.ok_button.set_sensitive(sensitive)
 891
 892
 893 class NewChannelDialog(ChannelPropertiesDialog):
 894     def __init__(self, app):
 895         gtk.Dialog.__init__(self, 'New Channel', app.window)
 896         self.mixer = app.mixer
 897         self.app = app
 898         self.create_ui()
 899
 900         self.stereo.set_active(True) # default to stereo
 901
 902         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 903         self.ok_button = self.add_button(gtk.STOCK_ADD, gtk.RESPONSE_OK)
 904         self.ok_button.set_sensitive(False)
 905         self.set_default_response(gtk.RESPONSE_OK);
 906
 907     def get_result(self):
 908         return {'name': self.entry_name.get_text(),
 909                 'stereo': self.stereo.get_active(),
 910                 'volume_cc': self.entry_volume_cc.get_text(),
 911                 'balance_cc': self.entry_balance_cc.get_text()
 912                }
 913
 914 class OutputChannelPropertiesDialog(ChannelPropertiesDialog):
 915     def create_ui(self):
 916         ChannelPropertiesDialog.create_ui(self)
 917
 918         vbox = gtk.VBox()
 919         self.vbox.pack_start(self.create_frame('Input Channels', vbox))
 920
 921         self.display_solo_buttons = gtk.CheckButton('Display solo buttons')
 922         vbox.pack_start(self.display_solo_buttons)
 923
 924         self.vbox.show_all()
 925
 926     def fill_ui(self):
 927         ChannelPropertiesDialog.fill_ui(self)
 928         self.display_solo_buttons.set_active(self.channel.display_solo_buttons)
 929
 930     def on_response_cb(self, dlg, response_id, *args):
 931         ChannelPropertiesDialog.on_response_cb(self, dlg, response_id, *args)
 932         if response_id == gtk.RESPONSE_APPLY:
 933             self.channel.display_solo_buttons = self.display_solo_buttons.get_active()
 934
 935
 936 class NewOutputChannelDialog(OutputChannelPropertiesDialog):
 937     def __init__(self, app):
 938         gtk.Dialog.__init__(self, 'New Output Channel', app.window)
 939         self.mixer = app.mixer
 940         self.app = app
 941         self.create_ui()
 942
 943         # TODO: disable mode for output channels as mono output channels may
 944         # not be correctly handled yet.
 945         self.mode_hbox.set_sensitive(False)
 946         self.stereo.set_active(True) # default to stereo
 947
 948         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 949         self.ok_button = self.add_button(gtk.STOCK_ADD, gtk.RESPONSE_OK)
 950         self.ok_button.set_sensitive(False)
 951         self.set_default_response(gtk.RESPONSE_OK);
 952
 953     def get_result(self):
 954         return {'name': self.entry_name.get_text(),
 955                 'stereo': self.stereo.get_active(),
 956                 'volume_cc': self.entry_volume_cc.get_text(),
 957                 'balance_cc': self.entry_balance_cc.get_text(),
 958                 'display_solo_buttons': self.display_solo_buttons.get_active(),
 959                }
 960
 961
 962 class ControlGroup(gtk.Alignment):
 963     def __init__(self, output_channel, input_channel):
 964         gtk.Alignment.__init__(self, 0.5, 0.5, 0, 0)
 965         self.output_channel = output_channel
 966         self.input_channel = input_channel
 967         self.app = input_channel.app
 968
 969         hbox = gtk.HBox()
 970         self.hbox = hbox
 971         self.add(hbox)
 972
 973         mute = gtk.ToggleButton()
 974         self.mute = mute
 975         mute.set_label("M")
 976         mute.connect("toggled", self.on_mute_toggled)
 977         hbox.pack_start(mute, False)
 978
 979         solo = gtk.ToggleButton()
 980         self.solo = solo
 981         solo.set_label("S")
 982         solo.connect("toggled", self.on_solo_toggled)
 983         if self.output_channel.display_solo_buttons:
 984             hbox.pack_start(solo, True)
 985
 986         mute.modify_bg(gtk.STATE_PRELIGHT, output_channel.color_tuple[0])
 987         mute.modify_bg(gtk.STATE_NORMAL, output_channel.color_tuple[1])
 988         mute.modify_bg(gtk.STATE_ACTIVE, output_channel.color_tuple[2])
 989         solo.modify_bg(gtk.STATE_PRELIGHT, output_channel.color_tuple[0])
 990         solo.modify_bg(gtk.STATE_NORMAL, output_channel.color_tuple[1])
 991         solo.modify_bg(gtk.STATE_ACTIVE, output_channel.color_tuple[2])
 992
 993     def update(self):
 994         if self.output_channel.display_solo_buttons:
 995             if not self.solo in self.hbox.get_children():
 996                 self.hbox.pack_start(self.solo, True)
 997                 self.solo.show()
 998         else:
 999             if self.solo in self.hbox.get_children():
1000                 self.hbox.remove(self.solo)
1001
1002     def on_mute_toggled(self, button):
1003         self.output_channel.channel.set_muted(self.input_channel.channel, button.get_active())
1004         self.app.update_monitor(self)
1005
1006     def on_solo_toggled(self, button):
1007         self.output_channel.channel.set_solo(self.input_channel.channel, button.get_active())
1008         self.app.update_monitor(self)
1009