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     def set_channel_name(self, name):
  57         self._channel_name = name
  58         if self.label_name:
  59             self.label_name.set_text(name)
  60         if self.channel:
  61             self.channel.name = name
  62     channel_name = property(get_channel_name, set_channel_name)
  63
  64     def realize(self):
  65         #print "Realizing channel \"%s\"" % self.channel_name
  66
  67         self.slider_adjustment.connect("volume-changed", self.on_volume_changed)
  68         self.balance_adjustment.connect("value-changed", self.on_balance_changed)
  69         self.connect('midi-event-received', self.on_midi_event_received)
  70
  71         self.slider = None
  72         self.create_slider_widget()
  73
  74         if self.stereo:
  75             self.meter = meter.StereoMeterWidget(self.meter_scale)
  76         else:
  77             self.meter = meter.MonoMeterWidget(self.meter_scale)
  78         self.on_vumeter_color_changed(self.gui_factory)
  79
  80         self.meter.set_events(gtk.gdk.SCROLL_MASK)
  81
  82         self.gui_factory.connect("default-meter-scale-changed", self.on_default_meter_scale_changed)
  83         self.gui_factory.connect("default-slider-scale-changed", self.on_default_slider_scale_changed)
  84         self.gui_factory.connect('vumeter-color-changed', self.on_vumeter_color_changed)
  85         self.gui_factory.connect('vumeter-color-scheme-changed', self.on_vumeter_color_changed)
  86         self.gui_factory.connect('use-custom-widgets-changed', self.on_custom_widgets_changed)
  87
  88         self.abspeak = abspeak.AbspeakWidget()
  89         self.abspeak.connect("reset", self.on_abspeak_reset)
  90         self.abspeak.connect("volume-adjust", self.on_abspeak_adjust)
  91
  92         self.volume_digits = gtk.Entry()
  93         self.volume_digits.connect("key-press-event", self.on_volume_digits_key_pressed)
  94         self.volume_digits.connect("focus-out-event", self.on_volume_digits_focus_out)
  95
  96         self.connect("key-press-event", self.on_key_pressed)
  97         self.connect("scroll-event", self.on_scroll)
  98
  99     def unrealize(self):
 100         #print "Unrealizing channel \"%s\"" % self.channel_name
 101         pass
 102
 103     def create_balance_widget(self):
 104         if self.gui_factory.use_custom_widgets and phat:
 105             self.balance = phat.HFanSlider()
 106             self.balance.set_default_value(0)
 107             self.balance.set_adjustment(self.balance_adjustment)
 108         else:
 109             self.balance = gtk.HScale(self.balance_adjustment)
 110             self.balance.set_draw_value(False)
 111         self.pack_start(self.balance, False)
 112         if self.monitor_button:
 113             self.reorder_child(self.monitor_button, -1)
 114         self.balance.show()
 115
 116     def create_slider_widget(self):
 117         parent = None
 118         if self.slider:
 119             parent = self.slider.get_parent()
 120             self.slider.destroy()
 121         if self.gui_factory.use_custom_widgets:
 122             self.slider = slider.CustomSliderWidget(self.slider_adjustment)
 123         else:
 124             self.slider = slider.GtkSlider(self.slider_adjustment)
 125         if parent:
 126             parent.pack_start(self.slider)
 127             parent.reorder_child(self.slider, 0)
 128         self.slider.show()
 129
 130     def on_default_meter_scale_changed(self, gui_factory, scale):
 131         #print "Default meter scale change detected."
 132         self.meter.set_scale(scale)
 133
 134     def on_default_slider_scale_changed(self, gui_factory, scale):
 135         #print "Default slider scale change detected."
 136         self.slider_scale = scale
 137         self.slider_adjustment.set_scale(scale)
 138         self.channel.midi_scale = self.slider_scale.scale
 139
 140     def on_vumeter_color_changed(self, gui_factory, *args):
 141         color = gui_factory.get_vumeter_color()
 142         color_scheme = gui_factory.get_vumeter_color_scheme()
 143         if color_scheme != 'solid':
 144             self.meter.set_color(None)
 145         else:
 146             self.meter.set_color(gtk.gdk.color_parse(color))
 147
 148     def on_custom_widgets_changed(self, gui_factory, value):
 149         self.balance.destroy()
 150         self.create_balance_widget()
 151         self.create_slider_widget()
 152
 153     def on_abspeak_adjust(self, abspeak, adjust):
 154         #print "abspeak adjust %f" % adjust
 155         self.slider_adjustment.set_value_db(self.slider_adjustment.get_value_db() + adjust)
 156         self.channel.abspeak = None
 157         #self.update_volume(False)   # We want to update gui even if actual decibels have not changed (scale wrap for example)
 158
 159     def on_abspeak_reset(self, abspeak):
 160         #print "abspeak reset"
 161         self.channel.abspeak = None
 162
 163     def on_volume_digits_key_pressed(self, widget, event):
 164         if (event.keyval == gtk.keysyms.Return or event.keyval == gtk.keysyms.KP_Enter):
 165             db_text = self.volume_digits.get_text()
 166             try:
 167                 db = float(db_text)
 168                 #print "Volume digits confirmation \"%f dBFS\"" % db
 169             except (ValueError), e:
 170                 #print "Volume digits confirmation ignore, reset to current"
 171                 self.update_volume(False)
 172                 return
 173             self.slider_adjustment.set_value_db(db)
 174             #self.grab_focus()
 175             #self.update_volume(False)   # We want to update gui even if actual decibels have not changed (scale wrap for example)
 176
 177     def on_volume_digits_focus_out(self, widget, event):
 178         #print "volume digits focus out detected"
 179         self.update_volume(False)
 180
 181     def read_meter(self):
 182         if not self.channel:
 183             return
 184         if self.stereo:
 185             meter_left, meter_right = self.channel.meter
 186             self.meter.set_values(meter_left, meter_right)
 187         else:
 188             self.meter.set_value(self.channel.meter[0])
 189
 190         self.abspeak.set_peak(self.channel.abspeak)
 191
 192     def on_scroll(self, widget, event):
 193         if event.direction == gtk.gdk.SCROLL_DOWN:
 194             self.slider_adjustment.step_down()
 195         elif event.direction == gtk.gdk.SCROLL_UP:
 196             self.slider_adjustment.step_up()
 197         return True
 198
 199     def update_volume(self, update_engine):
 200         db = self.slider_adjustment.get_value_db()
 201
 202         db_text = "%.2f" % db
 203         self.volume_digits.set_text(db_text)
 204
 205         if update_engine:
 206             #print "Setting engine volume to " + db_text
 207             self.channel.volume = db
 208             self.app.update_monitor(self)
 209
 210     def on_volume_changed(self, adjustment):
 211         self.update_volume(True)
 212
 213     def on_balance_changed(self, adjustment):
 214         balance = self.balance_adjustment.get_value()
 215         #print "%s balance: %f" % (self.channel_name, balance)
 216         self.channel.balance = balance
 217         self.app.update_monitor(self)
 218
 219     def on_key_pressed(self, widget, event):
 220         if (event.keyval == gtk.keysyms.Up):
 221             #print self.channel_name + " Up"
 222             self.slider_adjustment.step_up()
 223             return True
 224         elif (event.keyval == gtk.keysyms.Down):
 225             #print self.channel_name + " Down"
 226             self.slider_adjustment.step_down()
 227             return True
 228
 229         return False
 230
 231     def serialize(self, object_backend):
 232         object_backend.add_property("volume", "%f" % self.slider_adjustment.get_value_db())
 233         object_backend.add_property("balance", "%f" % self.balance_adjustment.get_value())
 234
 235         if self.channel.volume_midi_cc:
 236             object_backend.add_property('volume_midi_cc', str(self.channel.volume_midi_cc))
 237         if self.channel.balance_midi_cc:
 238             object_backend.add_property('balance_midi_cc', str(self.channel.balance_midi_cc))
 239
 240     def unserialize_property(self, name, value):
 241         if name == "volume":
 242             self.slider_adjustment.set_value_db(float(value))
 243             return True
 244         if name == "balance":
 245             self.balance_adjustment.set_value(float(value))
 246             return True
 247         if name == 'volume_midi_cc':
 248             self.future_volume_midi_cc = int(value)
 249             return True
 250         if name == 'balance_midi_cc':
 251             self.future_balance_midi_cc = int(value)
 252             return True
 253         return False
 254
 255     def on_midi_event_received(self, *args):
 256         self.slider_adjustment.set_value_db(self.channel.volume)
 257         self.balance_adjustment.set_value(self.channel.balance)
 258
 259     def midi_change_callback(self, *args):
 260         # the changes are not applied directly to the widgets as they
 261         # absolutely have to be done from the gtk thread.
 262         self.emit('midi-event-received')
 263
 264     def on_monitor_button_toggled(self, button):
 265         if not button.get_active():
 266             self.app.main_mix.monitor_button.set_active(True)
 267         else:
 268             for channel in self.app.channels + self.app.output_channels + [self.app.main_mix]:
 269                 if channel.monitor_button.get_active() and channel.monitor_button is not button:
 270                     channel.monitor_button.handler_block_by_func(
 271                                 channel.on_monitor_button_toggled)
 272                     channel.monitor_button.set_active(False)
 273                     channel.monitor_button.handler_unblock_by_func(
 274                                 channel.on_monitor_button_toggled)
 275             self.app.set_monitored_channel(self)
 276
 277     def set_monitored(self):
 278         if self.channel:
 279             self.app.set_monitored_channel(self)
 280         self.monitor_button.set_active(True)
 281
 282 gobject.signal_new('midi-event-received', Channel,
 283                 gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION,
 284                 gobject.TYPE_NONE, ())
 285
 286 class InputChannel(Channel):
 287     post_fader_output_channel = None
 288
 289     def __init__(self, app, name, stereo):
 290         Channel.__init__(self, app, name, stereo)
 291
 292     def realize(self):
 293         self.channel = self.mixer.add_channel(self.channel_name, self.stereo)
 294         if self.channel == None:
 295             raise Exception,"Cannot create a channel"
 296         Channel.realize(self)
 297         if self.future_volume_midi_cc:
 298             self.channel.volume_midi_cc = self.future_volume_midi_cc
 299         if self.future_balance_midi_cc:
 300             self.channel.balance_midi_cc = self.future_balance_midi_cc
 301         self.channel.midi_scale = self.slider_scale.scale
 302         self.channel.midi_change_callback = self.midi_change_callback
 303
 304         self.on_volume_changed(self.slider_adjustment)
 305         self.on_balance_changed(self.balance_adjustment)
 306
 307         # vbox child at upper part
 308         self.vbox = gtk.VBox()
 309         self.pack_start(self.vbox, False)
 310         self.label_name = gtk.Label()
 311         self.label_name.set_text(self.channel_name)
 312         self.label_name.set_size_request(0, -1)
 313         self.label_name_event_box = gtk.EventBox()
 314         self.label_name_event_box.connect("button-press-event", self.on_label_mouse)
 315         self.label_name_event_box.add(self.label_name)
 316         self.vbox.pack_start(self.label_name_event_box, True)
 317 #         self.label_stereo = gtk.Label()
 318 #         if self.stereo:
 319 #             self.label_stereo.set_text("stereo")
 320 #         else:
 321 #             self.label_stereo.set_text("mono")
 322 #         self.label_stereo.set_size_request(0, -1)
 323 #         self.vbox.pack_start(self.label_stereo, True)
 324
 325         # hbox for mute and solo buttons
 326         self.hbox_mutesolo = gtk.HBox()
 327
 328         self.mute = gtk.ToggleButton()
 329         self.mute.set_label("M")
 330         self.mute.set_active(self.channel.mute)
 331         self.mute.connect("button-press-event", self.on_mute_button_pressed)
 332         self.mute.connect("toggled", self.on_mute_toggled)
 333         self.hbox_mutesolo.pack_start(self.mute, True)
 334
 335         self.solo = gtk.ToggleButton()
 336         self.solo.set_label("S")
 337         self.solo.set_active(self.channel.solo)
 338         self.solo.connect("button-press-event", self.on_solo_button_pressed)
 339         self.solo.connect("toggled", self.on_solo_toggled)
 340         self.hbox_mutesolo.pack_start(self.solo, True)
 341
 342         self.vbox.pack_start(self.hbox_mutesolo, False)
 343
 344         frame = gtk.Frame()
 345         frame.set_shadow_type(gtk.SHADOW_IN)
 346         frame.add(self.abspeak);
 347         self.pack_start(frame, False)
 348
 349         # hbox child at lower part
 350         self.hbox = gtk.HBox()
 351         self.hbox.pack_start(self.slider, True)
 352         frame = gtk.Frame()
 353         frame.set_shadow_type(gtk.SHADOW_IN)
 354         frame.add(self.meter);
 355         self.hbox.pack_start(frame, True)
 356         frame = gtk.Frame()
 357         frame.set_shadow_type(gtk.SHADOW_IN)
 358         frame.add(self.hbox);
 359         self.pack_start(frame, True)
 360
 361         self.volume_digits.set_size_request(0, -1)
 362         self.pack_start(self.volume_digits, False)
 363
 364         self.create_balance_widget()
 365
 366         self.monitor_button = gtk.ToggleButton('MON')
 367         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 368         self.pack_start(self.monitor_button, False, False)
 369
 370     def add_control_group(self, channel):
 371         control_group = ControlGroup(channel, self)
 372         control_group.show_all()
 373         self.vbox.pack_start(control_group, False)
 374         return control_group
 375
 376     def remove_control_group(self, channel):
 377         ctlgroup = self.get_control_group(channel)
 378         self.vbox.remove(ctlgroup)
 379
 380     def update_control_group(self, channel):
 381         for control_group in self.vbox.get_children():
 382             if isinstance(control_group, ControlGroup):
 383                 if control_group.output_channel is channel:
 384                     control_group.update()
 385
 386     def get_control_group(self, channel):
 387         for control_group in self.vbox.get_children():
 388             if isinstance(control_group, ControlGroup):
 389                 if control_group.output_channel is channel:
 390                     return control_group
 391         return None
 392
 393     def unrealize(self):
 394         Channel.unrealize(self)
 395         if self.post_fader_output_channel:
 396             self.post_fader_output_channel.remove()
 397             self.post_fader_output_channel = None
 398         self.channel.remove()
 399         self.channel = None
 400
 401     channel_properties_dialog = None
 402     def on_channel_properties(self):
 403         if not self.channel_properties_dialog:
 404             self.channel_properties_dialog = ChannelPropertiesDialog(self, self.app)
 405         self.channel_properties_dialog.show()
 406         self.channel_properties_dialog.present()
 407
 408     def on_label_mouse(self, widget, event):
 409         if event.type == gtk.gdk._2BUTTON_PRESS:
 410             if event.button == 1:
 411                 self.on_channel_properties()
 412
 413     def on_mute_toggled(self, button):
 414         self.channel.mute = self.mute.get_active()
 415         self.app.update_monitor(self.app.main_mix)
 416
 417     def on_mute_button_pressed(self, button, event, *args):
 418         if event.button == 3:
 419             # right click on the mute button, act on all output channels
 420             if button.get_active(): # was muted
 421                 button.set_active(False)
 422                 if hasattr(button, 'touched_channels'):
 423                     touched_channels = button.touched_channels
 424                     for chan in touched_channels:
 425                         ctlgroup = self.get_control_group(chan)
 426                         ctlgroup.mute.set_active(False)
 427                     del button.touched_channels
 428             else: # was not muted
 429                 button.set_active(True)
 430                 touched_channels = []
 431                 for chan in self.app.output_channels:
 432                     ctlgroup = self.get_control_group(chan)
 433                     if not ctlgroup.mute.get_active():
 434                         ctlgroup.mute.set_active(True)
 435                         touched_channels.append(chan)
 436                 button.touched_channels = touched_channels
 437             return True
 438         return False
 439
 440     def on_solo_toggled(self, button):
 441         self.channel.solo = self.solo.get_active()
 442         self.app.update_monitor(self.app.main_mix)
 443
 444     def on_solo_button_pressed(self, button, event, *args):
 445         if event.button == 3:
 446             # right click on the solo button, act on all output channels
 447             if button.get_active(): # was soloed
 448                 button.set_active(False)
 449                 if hasattr(button, 'touched_channels'):
 450                     touched_channels = button.touched_channels
 451                     for chan in touched_channels:
 452                         ctlgroup = self.get_control_group(chan)
 453                         ctlgroup.solo.set_active(False)
 454                     del button.touched_channels
 455             else: # was not soloed
 456                 button.set_active(True)
 457                 touched_channels = []
 458                 for chan in self.app.output_channels:
 459                     ctlgroup = self.get_control_group(chan)
 460                     if not ctlgroup.solo.get_active():
 461                         ctlgroup.solo.set_active(True)
 462                         touched_channels.append(chan)
 463                 button.touched_channels = touched_channels
 464             return True
 465         return False
 466
 467     @classmethod
 468     def serialization_name(cls):
 469         return 'input_channel'
 470
 471     def serialize(self, object_backend):
 472         object_backend.add_property("name", self.channel_name)
 473         if self.stereo:
 474             object_backend.add_property("type", "stereo")
 475         else:
 476             object_backend.add_property("type", "mono")
 477         Channel.serialize(self, object_backend)
 478
 479     def unserialize_property(self, name, value):
 480         if name == "name":
 481             self.channel_name = str(value)
 482             return True
 483         if name == "type":
 484             if value == "stereo":
 485                 self.stereo = True
 486                 return True
 487             if value == "mono":
 488                 self.stereo = False
 489                 return True
 490         return Channel.unserialize_property(self, name, value)
 491
 492
 493 available_colours = [
 494     ('#ef2929', '#cc0000', '#840000'),
 495     ('#729fcf', '#3465a4', '#204a67'),
 496     ('#8aa234', '#73d216', '#4e7a06'),
 497     ('#fce84f', '#edd400', '#c48000'),
 498     ('#fcaf3e', '#f57900', '#ae5c00'),
 499     ('#ad7fa8', '#75507b', '#4c3556'),
 500     ('#e9b96e', '#c17d11', '#6f4902'),
 501 ]
 502
 503 class OutputChannel(Channel):
 504     colours = available_colours[:]
 505     _display_solo_buttons = False
 506
 507     _init_muted_channels = None
 508     _init_solo_channels = None
 509
 510     def __init__(self, app, name, stereo):
 511         Channel.__init__(self, app, name, stereo)
 512
 513     def get_display_solo_buttons(self):
 514         return self._display_solo_buttons
 515
 516     def set_display_solo_buttons(self, value):
 517         self._display_solo_buttons = value
 518         # notifying control groups
 519         for inputchannel in self.app.channels:
 520             inputchannel.update_control_group(self)
 521
 522     display_solo_buttons = property(get_display_solo_buttons, set_display_solo_buttons)
 523
 524     def realize(self):
 525         Channel.realize(self)
 526         self.channel = self.mixer.add_output_channel(self.channel_name, self.stereo)
 527         if self.channel == None:
 528             raise Exception,"Cannot create a channel"
 529         Channel.realize(self)
 530
 531         self.channel.midi_scale = self.slider_scale.scale
 532         self.channel.midi_change_callback = self.midi_change_callback
 533
 534         self.on_volume_changed(self.slider_adjustment)
 535         self.on_balance_changed(self.balance_adjustment)
 536
 537         # vbox child at upper part
 538         self.vbox = gtk.VBox()
 539         self.pack_start(self.vbox, False)
 540         self.label_name = gtk.Label()
 541         self.label_name.set_text(self.channel_name)
 542         self.label_name.set_size_request(0, -1)
 543         self.label_name_event_box = gtk.EventBox()
 544         self.label_name_event_box.connect('button-press-event', self.on_label_mouse)
 545         self.label_name_event_box.add(self.label_name)
 546         if not self.colours:
 547             OutputChannel.colours = available_colours[:]
 548         for color in self.colours:
 549             self.color_tuple = [gtk.gdk.color_parse(color[x]) for x in range(3)]
 550             self.colours.remove(color)
 551             break
 552         self.label_name_event_box.modify_bg(gtk.STATE_NORMAL, self.color_tuple[1])
 553         self.vbox.pack_start(self.label_name_event_box, True)
 554         frame = gtk.Frame()
 555         frame.set_shadow_type(gtk.SHADOW_IN)
 556         frame.add(self.abspeak);
 557         self.vbox.pack_start(frame, False)
 558
 559         # hbox child at lower part
 560         self.hbox = gtk.HBox()
 561         self.hbox.pack_start(self.slider, True)
 562         frame = gtk.Frame()
 563         frame.set_shadow_type(gtk.SHADOW_IN)
 564         frame.add(self.meter);
 565         self.hbox.pack_start(frame, True)
 566         frame = gtk.Frame()
 567         frame.set_shadow_type(gtk.SHADOW_IN)
 568         frame.add(self.hbox);
 569         self.pack_start(frame, True)
 570
 571         self.volume_digits.set_size_request(0, -1)
 572         self.pack_start(self.volume_digits, False)
 573
 574         self.create_balance_widget()
 575
 576         self.monitor_button = gtk.ToggleButton('MON')
 577         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 578         self.pack_start(self.monitor_button, False, False)
 579
 580         # add control groups to the input channels, and initialize them
 581         # appropriately
 582         for input_channel in self.app.channels:
 583             ctlgroup = input_channel.add_control_group(self)
 584             if self._init_muted_channels and input_channel.channel.name in self._init_muted_channels:
 585                 ctlgroup.mute.set_active(True)
 586             if self._init_solo_channels and input_channel.channel.name in self._init_solo_channels:
 587                 ctlgroup.solo.set_active(True)
 588         self._init_muted_channels = None
 589         self._init_solo_channels = None
 590
 591     channel_properties_dialog = None
 592     def on_channel_properties(self):
 593         if not self.channel_properties_dialog:
 594             self.channel_properties_dialog = OutputChannelPropertiesDialog(self, self.app)
 595         self.channel_properties_dialog.show()
 596         self.channel_properties_dialog.present()
 597
 598     def on_label_mouse(self, widget, event):
 599         if event.type == gtk.gdk._2BUTTON_PRESS:
 600             if event.button == 1:
 601                 self.on_channel_properties()
 602
 603     def unrealize(self):
 604         # remove control groups from input channels
 605         for input_channel in self.app.channels:
 606             input_channel.remove_control_group(self)
 607         # then remove itself
 608         Channel.unrealize(self)
 609         self.channel.remove()
 610         self.channel = None
 611
 612     @classmethod
 613     def serialization_name(cls):
 614         return 'output_channel'
 615
 616     def serialize(self, object_backend):
 617         object_backend.add_property("name", self.channel_name)
 618         if self.stereo:
 619             object_backend.add_property("type", "stereo")
 620         else:
 621             object_backend.add_property("type", "mono")
 622         if self.display_solo_buttons:
 623             object_backend.add_property("solo_buttons", "true")
 624         muted_channels = []
 625         solo_channels = []
 626         for input_channel in self.app.channels:
 627             if self.channel.is_muted(input_channel.channel):
 628                 muted_channels.append(input_channel)
 629             if self.channel.is_solo(input_channel.channel):
 630                 solo_channels.append(input_channel)
 631         if muted_channels:
 632             object_backend.add_property('muted_channels', '|'.join([x.channel.name for x in muted_channels]))
 633         if solo_channels:
 634             object_backend.add_property('solo_channels', '|'.join([x.channel.name for x in solo_channels]))
 635         Channel.serialize(self, object_backend)
 636
 637     def unserialize_property(self, name, value):
 638         if name == "name":
 639             self.channel_name = str(value)
 640             return True
 641         if name == "type":
 642             if value == "stereo":
 643                 self.stereo = True
 644                 return True
 645             if value == "mono":
 646                 self.stereo = False
 647                 return True
 648         if name == "solo_buttons":
 649             if value == "true":
 650                 self.display_solo_buttons = True
 651                 return True
 652         if name == 'muted_channels':
 653             self._init_muted_channels = value.split('|')
 654             return True
 655         if name == 'solo_channels':
 656             self._init_solo_channels = value.split('|')
 657             return True
 658         return Channel.unserialize_property(self, name, value)
 659
 660 class MainMixChannel(Channel):
 661     _init_muted_channels = None
 662     _init_solo_channels = None
 663
 664     def __init__(self, app):
 665         Channel.__init__(self, app, "MAIN", True)
 666
 667     def realize(self):
 668         Channel.realize(self)
 669         self.channel = self.mixer.main_mix_channel
 670         self.channel.midi_scale = self.slider_scale.scale
 671         self.channel.midi_change_callback = self.midi_change_callback
 672
 673         self.on_volume_changed(self.slider_adjustment)
 674         self.on_balance_changed(self.balance_adjustment)
 675
 676         # vbox child at upper part
 677         self.vbox = gtk.VBox()
 678         self.pack_start(self.vbox, False)
 679         self.label_name = gtk.Label()
 680         self.label_name.set_text(self.channel_name)
 681         self.label_name.set_size_request(0, -1)
 682         self.vbox.pack_start(self.label_name, False)
 683         frame = gtk.Frame()
 684         frame.set_shadow_type(gtk.SHADOW_IN)
 685         frame.add(self.abspeak);
 686         self.vbox.pack_start(frame, False)
 687
 688         # hbox child at lower part
 689         self.hbox = gtk.HBox()
 690         self.hbox.pack_start(self.slider, True)
 691         frame = gtk.Frame()
 692         frame.set_shadow_type(gtk.SHADOW_IN)
 693         frame.add(self.meter);
 694         self.hbox.pack_start(frame, True)
 695         frame = gtk.Frame()
 696         frame.set_shadow_type(gtk.SHADOW_IN)
 697         frame.add(self.hbox);
 698         self.pack_start(frame, True)
 699
 700         self.volume_digits.set_size_request(0, -1)
 701         self.pack_start(self.volume_digits, False)
 702
 703         self.create_balance_widget()
 704
 705         self.monitor_button = gtk.ToggleButton('MON')
 706         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 707         self.pack_start(self.monitor_button, False, False)
 708
 709         for input_channel in self.app.channels:
 710             if self._init_muted_channels and input_channel.channel.name in self._init_muted_channels:
 711                 input_channel.mute.set_active(True)
 712             if self._init_solo_channels and input_channel.channel.name in self._init_solo_channels:
 713                 input_channel.solo.set_active(True)
 714         self._init_muted_channels = None
 715         self._init_solo_channels = None
 716
 717     def unrealize(self):
 718         Channel.unrealize(self)
 719         self.channel = False
 720
 721     @classmethod
 722     def serialization_name(cls):
 723         return 'main_mix_channel'
 724
 725     def serialize(self, object_backend):
 726         muted_channels = []
 727         solo_channels = []
 728         for input_channel in self.app.channels:
 729             if input_channel.channel.mute:
 730                 muted_channels.append(input_channel)
 731             if input_channel.channel.solo:
 732                 solo_channels.append(input_channel)
 733         if muted_channels:
 734             object_backend.add_property('muted_channels', '|'.join([x.channel.name for x in muted_channels]))
 735         if solo_channels:
 736             object_backend.add_property('solo_channels', '|'.join([x.channel.name for x in solo_channels]))
 737         Channel.serialize(self, object_backend)
 738
 739     def unserialize_property(self, name, value):
 740         if name == 'muted_channels':
 741             self._init_muted_channels = value.split('|')
 742             return True
 743         if name == 'solo_channels':
 744             self._init_solo_channels = value.split('|')
 745             return True
 746         return Channel.unserialize_property(self, name, value)
 747
 748
 749 class ChannelPropertiesDialog(gtk.Dialog):
 750     channel = None
 751
 752     def __init__(self, parent, app):
 753         self.channel = parent
 754         self.app = app
 755         self.mixer = self.channel.mixer
 756         gtk.Dialog.__init__(self,
 757                         'Channel "%s" Properties' % self.channel.channel_name,
 758                         self.channel.gui_factory.topwindow)
 759
 760         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 761         self.ok_button = self.add_button(gtk.STOCK_APPLY, gtk.RESPONSE_APPLY)
 762
 763         self.create_ui()
 764         self.fill_ui()
 765
 766         self.connect('response', self.on_response_cb)
 767         self.connect('delete-event', self.on_response_cb)
 768
 769     def create_frame(self, label, child):
 770         frame = gtk.Frame('')
 771         frame.set_border_width(3)
 772         #frame.set_shadow_type(gtk.SHADOW_NONE)
 773         frame.get_label_widget().set_markup('<b>%s</b>' % label)
 774
 775         alignment = gtk.Alignment(0, 0, 1, 1)
 776         alignment.set_padding(0, 0, 12, 0)
 777         frame.add(alignment)
 778         alignment.add(child)
 779
 780         return frame
 781
 782     def create_ui(self):
 783         vbox = gtk.VBox()
 784         self.vbox.add(vbox)
 785
 786         table = gtk.Table(2, 2, False)
 787         vbox.pack_start(self.create_frame('Properties', table))
 788         table.set_row_spacings(5)
 789         table.set_col_spacings(5)
 790
 791         table.attach(gtk.Label('Name'), 0, 1, 0, 1)
 792         self.entry_name = gtk.Entry()
 793         self.entry_name.set_activates_default(True)
 794         self.entry_name.connect('changed', self.on_entry_name_changed)
 795         table.attach(self.entry_name, 1, 2, 0, 1)
 796
 797         table.attach(gtk.Label('Mode'), 0, 1, 1, 2)
 798         self.mode_hbox = gtk.HBox()
 799         table.attach(self.mode_hbox, 1, 2, 1, 2)
 800         self.mono = gtk.RadioButton(label='Mono')
 801         self.stereo = gtk.RadioButton(label='Stereo', group=self.mono)
 802         self.mode_hbox.pack_start(self.mono)
 803         self.mode_hbox.pack_start(self.stereo)
 804
 805         table = gtk.Table(2, 3, False)
 806         vbox.pack_start(self.create_frame('MIDI Control Channels', table))
 807         table.set_row_spacings(5)
 808         table.set_col_spacings(5)
 809
 810         table.attach(gtk.Label('Volume'), 0, 1, 0, 1)
 811         self.entry_volume_cc = gtk.Entry()
 812         self.entry_volume_cc.set_activates_default(True)
 813         self.entry_volume_cc.set_editable(False)
 814         self.entry_volume_cc.set_width_chars(3)
 815         table.attach(self.entry_volume_cc, 1, 2, 0, 1)
 816         self.button_sense_midi_volume = gtk.Button('Autoset')
 817         self.button_sense_midi_volume.connect('clicked',
 818                         self.on_sense_midi_volume_clicked)
 819         table.attach(self.button_sense_midi_volume, 2, 3, 0, 1)
 820
 821         table.attach(gtk.Label('Balance'), 0, 1, 1, 2)
 822         self.entry_balance_cc = gtk.Entry()
 823         self.entry_balance_cc.set_activates_default(True)
 824         self.entry_balance_cc.set_width_chars(3)
 825         self.entry_balance_cc.set_editable(False)
 826         table.attach(self.entry_balance_cc, 1, 2, 1, 2)
 827         self.button_sense_midi_balance = gtk.Button('Autoset')
 828         self.button_sense_midi_balance.connect('clicked',
 829                         self.on_sense_midi_balance_clicked)
 830         table.attach(self.button_sense_midi_balance, 2, 3, 1, 2)
 831
 832         self.vbox.show_all()
 833
 834     def fill_ui(self):
 835         self.entry_name.set_text(self.channel.channel_name)
 836         if self.channel.channel.is_stereo:
 837             self.stereo.set_active(True)
 838         else:
 839             self.mono.set_active(True)
 840         self.mode_hbox.set_sensitive(False)
 841         self.entry_volume_cc.set_text('%s' % self.channel.channel.volume_midi_cc)
 842         self.entry_balance_cc.set_text('%s' % self.channel.channel.balance_midi_cc)
 843
 844     def sense_popup_dialog(self, entry):
 845         window = gtk.Window(gtk.WINDOW_TOPLEVEL)
 846         window.set_destroy_with_parent(True)
 847         window.set_transient_for(self)
 848         window.set_decorated(False)
 849         window.set_modal(True)
 850         window.set_position(gtk.WIN_POS_CENTER_ON_PARENT)
 851         window.set_border_width(10)
 852
 853         vbox = gtk.VBox(10)
 854         window.add(vbox)
 855         window.timeout = 5
 856         vbox.pack_start(gtk.Label('Please move the MIDI control you want to use for this function.'))
 857         timeout_label = gtk.Label('This window will close in 5 seconds')
 858         vbox.pack_start(timeout_label)
 859         def close_sense_timeout(window, entry):
 860             window.timeout -= 1
 861             timeout_label.set_text('This window will close in %d seconds.' % window.timeout)
 862             if window.timeout == 0:
 863                 window.destroy()
 864                 entry.set_text('%s' % self.mixer.last_midi_channel)
 865                 return False
 866             return True
 867         window.show_all()
 868         glib.timeout_add_seconds(1, close_sense_timeout, window, entry)
 869
 870     def on_sense_midi_volume_clicked(self, *args):
 871         self.sense_popup_dialog(self.entry_volume_cc)
 872
 873     def on_sense_midi_balance_clicked(self, *args):
 874         self.sense_popup_dialog(self.entry_balance_cc)
 875
 876     def on_response_cb(self, dlg, response_id, *args):
 877         self.channel.channel_properties_dialog = None
 878         self.destroy()
 879         if response_id == gtk.RESPONSE_APPLY:
 880             name = self.entry_name.get_text()
 881             self.channel.channel_name = name
 882             self.channel.channel.volume_midi_cc = int(self.entry_volume_cc.get_text())
 883             self.channel.channel.balance_midi_cc = int(self.entry_balance_cc.get_text())
 884
 885     def on_entry_name_changed(self, entry):
 886         sensitive = False
 887         if len(entry.get_text()):
 888             if self.channel and self.channel.channel.name == entry.get_text():
 889                 sensitive = True
 890             elif entry.get_text() not in [x.channel.name for x in self.app.channels] + \
 891                         [x.channel.name for x in self.app.output_channels] + ['MAIN']:
 892                 sensitive = True
 893         self.ok_button.set_sensitive(sensitive)
 894
 895
 896 class NewChannelDialog(ChannelPropertiesDialog):
 897     def __init__(self, app):
 898         gtk.Dialog.__init__(self, 'New Channel', app.window)
 899         self.mixer = app.mixer
 900         self.app = app
 901         self.create_ui()
 902
 903         self.stereo.set_active(True) # default to stereo
 904
 905         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 906         self.ok_button = self.add_button(gtk.STOCK_ADD, gtk.RESPONSE_OK)
 907         self.ok_button.set_sensitive(False)
 908         self.set_default_response(gtk.RESPONSE_OK);
 909
 910     def get_result(self):
 911         return {'name': self.entry_name.get_text(),
 912                 'stereo': self.stereo.get_active(),
 913                 'volume_cc': self.entry_volume_cc.get_text(),
 914                 'balance_cc': self.entry_balance_cc.get_text()
 915                }
 916
 917 class OutputChannelPropertiesDialog(ChannelPropertiesDialog):
 918     def create_ui(self):
 919         ChannelPropertiesDialog.create_ui(self)
 920
 921         vbox = gtk.VBox()
 922         self.vbox.pack_start(self.create_frame('Input Channels', vbox))
 923
 924         self.display_solo_buttons = gtk.CheckButton('Display solo buttons')
 925         vbox.pack_start(self.display_solo_buttons)
 926
 927         self.vbox.show_all()
 928
 929     def fill_ui(self):
 930         ChannelPropertiesDialog.fill_ui(self)
 931         self.display_solo_buttons.set_active(self.channel.display_solo_buttons)
 932
 933     def on_response_cb(self, dlg, response_id, *args):
 934         ChannelPropertiesDialog.on_response_cb(self, dlg, response_id, *args)
 935         if response_id == gtk.RESPONSE_APPLY:
 936             self.channel.display_solo_buttons = self.display_solo_buttons.get_active()
 937
 938
 939 class NewOutputChannelDialog(OutputChannelPropertiesDialog):
 940     def __init__(self, app):
 941         gtk.Dialog.__init__(self, 'New Output Channel', app.window)
 942         self.mixer = app.mixer
 943         self.app = app
 944         self.create_ui()
 945
 946         # TODO: disable mode for output channels as mono output channels may
 947         # not be correctly handled yet.
 948         self.mode_hbox.set_sensitive(False)
 949         self.stereo.set_active(True) # default to stereo
 950
 951         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 952         self.ok_button = self.add_button(gtk.STOCK_ADD, gtk.RESPONSE_OK)
 953         self.ok_button.set_sensitive(False)
 954         self.set_default_response(gtk.RESPONSE_OK);
 955
 956     def get_result(self):
 957         return {'name': self.entry_name.get_text(),
 958                 'stereo': self.stereo.get_active(),
 959                 'volume_cc': self.entry_volume_cc.get_text(),
 960                 'balance_cc': self.entry_balance_cc.get_text(),
 961                 'display_solo_buttons': self.display_solo_buttons.get_active(),
 962                }
 963
 964
 965 class ControlGroup(gtk.Alignment):
 966     def __init__(self, output_channel, input_channel):
 967         gtk.Alignment.__init__(self, 0.5, 0.5, 0, 0)
 968         self.output_channel = output_channel
 969         self.input_channel = input_channel
 970         self.app = input_channel.app
 971
 972         hbox = gtk.HBox()
 973         self.hbox = hbox
 974         self.add(hbox)
 975
 976         mute = gtk.ToggleButton()
 977         self.mute = mute
 978         mute.set_label("M")
 979         mute.connect("toggled", self.on_mute_toggled)
 980         hbox.pack_start(mute, False)
 981
 982         solo = gtk.ToggleButton()
 983         self.solo = solo
 984         solo.set_label("S")
 985         solo.connect("toggled", self.on_solo_toggled)
 986         if self.output_channel.display_solo_buttons:
 987             hbox.pack_start(solo, True)
 988
 989         mute.modify_bg(gtk.STATE_PRELIGHT, output_channel.color_tuple[0])
 990         mute.modify_bg(gtk.STATE_NORMAL, output_channel.color_tuple[1])
 991         mute.modify_bg(gtk.STATE_ACTIVE, output_channel.color_tuple[2])
 992         solo.modify_bg(gtk.STATE_PRELIGHT, output_channel.color_tuple[0])
 993         solo.modify_bg(gtk.STATE_NORMAL, output_channel.color_tuple[1])
 994         solo.modify_bg(gtk.STATE_ACTIVE, output_channel.color_tuple[2])
 995
 996     def update(self):
 997         if self.output_channel.display_solo_buttons:
 998             if not self.solo in self.hbox.get_children():
 999                 self.hbox.pack_start(self.solo, True)
1000                 self.solo.show()
1001         else:
1002             if self.solo in self.hbox.get_children():
1003                 self.hbox.remove(self.solo)
1004
1005     def on_mute_toggled(self, button):
1006         self.output_channel.channel.set_muted(self.input_channel.channel, button.get_active())
1007         self.app.update_monitor(self)
1008
1009     def on_solo_toggled(self, button):
1010         self.output_channel.channel.set_solo(self.input_channel.channel, button.get_active())
1011         self.app.update_monitor(self)
1012