channel.py

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