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 gi
  19 from gi.repository import Gtk
  20 from gi.repository import Gdk
  21 from gi.repository import GObject
  22 import slider
  23 import meter
  24 import abspeak
  25 from serialization import SerializedObject
  26
  27 try:
  28     import phat
  29 except:
  30     phat = None
  31
  32 button_padding = 1
  33
  34 css = b"""
  35 :not(button) > label {min-width: 100px;}
  36 button {padding: 0px}
  37 """
  38
  39 css_provider = Gtk.CssProvider()
  40 css_provider.load_from_data(css)
  41 context = Gtk.StyleContext()
  42 screen = Gdk.Screen.get_default()
  43 context.add_provider_for_screen(screen, css_provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
  44
  45 class Channel(Gtk.VBox, SerializedObject):
  46     '''Widget with slider and meter used as base class for more specific
  47        channel widgets'''
  48     monitor_button = None
  49
  50     def __init__(self, app, name, stereo):
  51         Gtk.VBox.__init__(self)
  52         self.app = app
  53         self.mixer = app.mixer
  54         self.gui_factory = app.gui_factory
  55         self._channel_name = name
  56         self.stereo = stereo
  57         self.meter_scale = self.gui_factory.get_default_meter_scale()
  58         self.slider_scale = self.gui_factory.get_default_slider_scale()
  59         self.slider_adjustment = slider.AdjustmentdBFS(self.slider_scale, 0.0, 0.02)
  60         self.balance_adjustment = Gtk.Adjustment(0.0, -1.0, 1.0, 0.02)
  61         self.future_out_mute = None
  62         self.future_volume_midi_cc = None
  63         self.future_balance_midi_cc = None
  64         self.future_mute_midi_cc = None
  65         self.future_solo_midi_cc = None
  66
  67     def get_channel_name(self):
  68         return self._channel_name
  69
  70     label_name = None
  71     channel = None
  72     post_fader_output_channel = None
  73     def set_channel_name(self, name):
  74         self.app.on_channel_rename(self._channel_name, name);
  75         self._channel_name = name
  76         if self.label_name:
  77             self.label_name.set_text(name)
  78         if self.channel:
  79             self.channel.name = name
  80         if self.post_fader_output_channel:
  81             self.post_fader_output_channel.name = "%s Out" % name;
  82     channel_name = property(get_channel_name, set_channel_name)
  83
  84     def realize(self):
  85         #print "Realizing channel \"%s\"" % self.channel_name
  86         if self.future_out_mute != None:
  87             self.channel.out_mute = self.future_out_mute
  88
  89         self.slider_adjustment.connect("volume-changed", self.on_volume_changed)
  90         self.balance_adjustment.connect("value-changed", self.on_balance_changed)
  91
  92         self.slider = None
  93         self.create_slider_widget()
  94
  95         if self.stereo:
  96             self.meter = meter.StereoMeterWidget(self.meter_scale)
  97         else:
  98             self.meter = meter.MonoMeterWidget(self.meter_scale)
  99         self.on_vumeter_color_changed(self.gui_factory)
 100
 101         self.meter.set_events(Gdk.EventMask.SCROLL_MASK)
 102
 103         self.gui_factory.connect("default-meter-scale-changed", self.on_default_meter_scale_changed)
 104         self.gui_factory.connect("default-slider-scale-changed", self.on_default_slider_scale_changed)
 105         self.gui_factory.connect('vumeter-color-changed', self.on_vumeter_color_changed)
 106         self.gui_factory.connect('vumeter-color-scheme-changed', self.on_vumeter_color_changed)
 107         self.gui_factory.connect('use-custom-widgets-changed', self.on_custom_widgets_changed)
 108
 109         self.abspeak = abspeak.AbspeakWidget()
 110         self.abspeak.connect("reset", self.on_abspeak_reset)
 111         self.abspeak.connect("volume-adjust", self.on_abspeak_adjust)
 112
 113         self.volume_digits = Gtk.Entry()
 114         self.volume_digits.set_property('xalign', 0.5)
 115         self.volume_digits.connect("key-press-event", self.on_volume_digits_key_pressed)
 116         self.volume_digits.connect("focus-out-event", self.on_volume_digits_focus_out)
 117
 118         self.connect("key-press-event", self.on_key_pressed)
 119         self.connect("scroll-event", self.on_scroll)
 120
 121     def unrealize(self):
 122         #print "Unrealizing channel \"%s\"" % self.channel_name
 123         pass
 124
 125     def balance_preferred_width(self):
 126         return (20, 20)
 127
 128     def _preferred_height(self):
 129         return (0, 100)
 130
 131     def create_balance_widget(self):
 132         if self.gui_factory.use_custom_widgets and phat:
 133             self.balance = phat.HFanSlider()
 134             self.balance.set_default_value(0)
 135             self.balance.set_adjustment(self.balance_adjustment)
 136         else:
 137             self.balance = Gtk.Scale()
 138             self.balance.get_preferred_width = self.balance_preferred_width
 139             self.balance.get_preferred_height = self._preferred_height
 140             self.balance.set_orientation(Gtk.Orientation.HORIZONTAL)
 141             self.balance.set_adjustment(self.balance_adjustment)
 142             self.balance.set_draw_value(False)
 143         self.pack_start(self.balance, False, True, 0)
 144         if self.monitor_button:
 145             self.reorder_child(self.monitor_button, -1)
 146         self.balance.show()
 147
 148     def create_slider_widget(self):
 149         parent = None
 150         if self.slider:
 151             parent = self.slider.get_parent()
 152             self.slider.destroy()
 153         if self.gui_factory.use_custom_widgets:
 154             self.slider = slider.CustomSliderWidget(self.slider_adjustment)
 155         else:
 156             self.slider = slider.GtkSlider(self.slider_adjustment)
 157         if parent:
 158             parent.pack_start(self.slider, True, True, 0)
 159             parent.reorder_child(self.slider, 0)
 160         self.slider.show()
 161
 162     def on_default_meter_scale_changed(self, gui_factory, scale):
 163         #print "Default meter scale change detected."
 164         self.meter.set_scale(scale)
 165
 166     def on_default_slider_scale_changed(self, gui_factory, scale):
 167         #print "Default slider scale change detected."
 168         self.slider_scale = scale
 169         self.slider_adjustment.set_scale(scale)
 170         self.channel.midi_scale = self.slider_scale.scale
 171
 172     def on_vumeter_color_changed(self, gui_factory, *args):
 173         color = gui_factory.get_vumeter_color()
 174         color_scheme = gui_factory.get_vumeter_color_scheme()
 175         if color_scheme != 'solid':
 176             self.meter.set_color(None)
 177         else:
 178             self.meter.set_color(Gdk.color_parse(color))
 179
 180     def on_custom_widgets_changed(self, gui_factory, value):
 181         self.balance.destroy()
 182         self.create_balance_widget()
 183         self.create_slider_widget()
 184
 185     def on_abspeak_adjust(self, abspeak, adjust):
 186         #print "abspeak adjust %f" % adjust
 187         self.slider_adjustment.set_value_db(self.slider_adjustment.get_value_db() + adjust)
 188         self.channel.abspeak = None
 189         #self.update_volume(False)   # We want to update gui even if actual decibels have not changed (scale wrap for example)
 190
 191     def on_abspeak_reset(self, abspeak):
 192         #print "abspeak reset"
 193         self.channel.abspeak = None
 194
 195     def on_volume_digits_key_pressed(self, widget, event):
 196         if (event.keyval == Gdk.KEY_Return or event.keyval == Gdk.KEY_KP_Enter):
 197             db_text = self.volume_digits.get_text()
 198             try:
 199                 db = float(db_text)
 200                 #print "Volume digits confirmation \"%f dBFS\"" % db
 201             except (ValueError) as e:
 202                 #print "Volume digits confirmation ignore, reset to current"
 203                 self.update_volume(False)
 204                 return
 205             self.slider_adjustment.set_value_db(db)
 206             #self.grab_focus()
 207             #self.update_volume(False)   # We want to update gui even if actual decibels have not changed (scale wrap for example)
 208
 209     def on_volume_digits_focus_out(self, widget, event):
 210         #print "volume digits focus out detected"
 211         self.update_volume(False)
 212
 213     def read_meter(self):
 214         if not self.channel:
 215             return
 216         if self.stereo:
 217             meter_left, meter_right = self.channel.meter
 218             self.meter.set_values(meter_left, meter_right)
 219         else:
 220             self.meter.set_value(self.channel.meter[0])
 221
 222         self.abspeak.set_peak(self.channel.abspeak)
 223
 224     def on_scroll(self, widget, event):
 225         if event.direction == Gdk.ScrollDirection.DOWN:
 226             self.slider_adjustment.step_down()
 227         elif event.direction == Gdk.ScrollDirection.UP:
 228             self.slider_adjustment.step_up()
 229         return True
 230
 231     def update_volume(self, update_engine):
 232         db = self.slider_adjustment.get_value_db()
 233
 234         db_text = "%.2f" % db
 235         self.volume_digits.set_text(db_text)
 236
 237         if update_engine:
 238             self.channel.volume = db
 239             self.app.update_monitor(self)
 240
 241     def on_volume_changed(self, adjustment):
 242         self.update_volume(True)
 243
 244     def on_balance_changed(self, adjustment):
 245         balance = self.balance_adjustment.get_value()
 246         #print "%s balance: %f" % (self.channel_name, balance)
 247         self.channel.balance = balance
 248         self.app.update_monitor(self)
 249
 250     def on_key_pressed(self, widget, event):
 251         if (event.keyval == Gdk.KEY_Up):
 252             #print self.channel_name + " Up"
 253             self.slider_adjustment.step_up()
 254             return True
 255         elif (event.keyval == Gdk.KEY_Down):
 256             #print self.channel_name + " Down"
 257             self.slider_adjustment.step_down()
 258             return True
 259
 260         return False
 261
 262     def serialize(self, object_backend):
 263         object_backend.add_property("volume", "%f" % self.slider_adjustment.get_value_db())
 264         object_backend.add_property("balance", "%f" % self.balance_adjustment.get_value())
 265
 266         if hasattr(self.channel, 'out_mute'):
 267             object_backend.add_property('out_mute', str(self.channel.out_mute))
 268         if self.channel.volume_midi_cc != -1:
 269             object_backend.add_property('volume_midi_cc', str(self.channel.volume_midi_cc))
 270         if self.channel.balance_midi_cc != -1:
 271             object_backend.add_property('balance_midi_cc', str(self.channel.balance_midi_cc))
 272         if self.channel.mute_midi_cc != -1:
 273             object_backend.add_property('mute_midi_cc', str(self.channel.mute_midi_cc))
 274         if self.channel.solo_midi_cc != -1:
 275             object_backend.add_property('solo_midi_cc', str(self.channel.solo_midi_cc))
 276
 277
 278     def unserialize_property(self, name, value):
 279         if name == "volume":
 280             self.slider_adjustment.set_value_db(float(value))
 281             return True
 282         if name == "balance":
 283             self.balance_adjustment.set_value(float(value))
 284             return True
 285         if name == 'out_mute':
 286             self.future_out_mute = (value == 'True')
 287             return True
 288         if name == 'volume_midi_cc':
 289             self.future_volume_midi_cc = int(value)
 290             return True
 291         if name == 'balance_midi_cc':
 292             self.future_balance_midi_cc = int(value)
 293             return True
 294         if name == 'mute_midi_cc':
 295             self.future_mute_midi_cc = int(value)
 296             return True
 297         if name == 'solo_midi_cc':
 298             self.future_solo_midi_cc = int(value)
 299             return True
 300         return False
 301
 302     def on_midi_event_received(self, *args):
 303         self.slider_adjustment.set_value_db(self.channel.volume)
 304         self.balance_adjustment.set_value(self.channel.balance)
 305
 306     def on_monitor_button_toggled(self, button):
 307         if button.get_active():
 308             for channel in self.app.channels + self.app.output_channels:
 309                 if channel.monitor_button.get_active() and channel.monitor_button is not button:
 310                     channel.monitor_button.handler_block_by_func(
 311                                 channel.on_monitor_button_toggled)
 312                     channel.monitor_button.set_active(False)
 313                     channel.monitor_button.handler_unblock_by_func(
 314                                 channel.on_monitor_button_toggled)
 315             self.app.set_monitored_channel(self)
 316
 317     def set_monitored(self):
 318         if self.channel:
 319             self.app.set_monitored_channel(self)
 320         self.monitor_button.set_active(True)
 321
 322 class InputChannel(Channel):
 323     post_fader_output_channel = None
 324
 325     def __init__(self, app, name, stereo):
 326         Channel.__init__(self, app, name, stereo)
 327
 328     def realize(self):
 329         self.channel = self.mixer.add_channel(self.channel_name, self.stereo)
 330
 331         if self.channel == None:
 332             raise Exception("Cannot create a channel")
 333         Channel.realize(self)
 334         if self.future_volume_midi_cc != None:
 335             self.channel.volume_midi_cc = self.future_volume_midi_cc
 336         if self.future_balance_midi_cc != None:
 337             self.channel.balance_midi_cc = self.future_balance_midi_cc
 338         if self.future_mute_midi_cc != None:
 339             self.channel.mute_midi_cc = self.future_mute_midi_cc
 340         if self.future_solo_midi_cc != None:
 341             self.channel.solo_midi_cc = self.future_solo_midi_cc
 342         if self.app._init_solo_channels and self.channel_name in self.app._init_solo_channels:
 343             self.channel.solo = True
 344
 345         self.channel.midi_scale = self.slider_scale.scale
 346
 347         self.on_volume_changed(self.slider_adjustment)
 348         self.on_balance_changed(self.balance_adjustment)
 349
 350         # vbox child at upper part
 351         self.vbox = Gtk.VBox()
 352         self.pack_start(self.vbox, False, True, 0)
 353         self.label_name = Gtk.Label()
 354         self.label_name.set_text(self.channel_name)
 355         self.label_name.set_width_chars(0)
 356         self.label_name_event_box = Gtk.EventBox()
 357         self.label_name_event_box.connect("button-press-event", self.on_label_mouse)
 358         self.label_name_event_box.add(self.label_name)
 359         self.vbox.pack_start(self.label_name_event_box, True, True, 0)
 360 #         self.label_stereo = Gtk.Label()
 361 #         if self.stereo:
 362 #             self.label_stereo.set_text("stereo")
 363 #         else:
 364 #             self.label_stereo.set_text("mono")
 365 #         self.label_stereo.set_size_request(0, -1)
 366 #         self.vbox.pack_start(self.label_stereo, True)
 367
 368         self.hbox_mutesolo = Gtk.HBox()
 369         vbox_mutesolo = Gtk.VBox()
 370         vbox_mutesolo.pack_start(self.hbox_mutesolo, True, True, button_padding)
 371         self.vbox.pack_start(vbox_mutesolo, True, True, 0)
 372
 373         self.mute = Gtk.ToggleButton()
 374         self.mute.set_label("M")
 375         self.mute.set_name("mute")
 376         self.mute.set_active(self.channel.out_mute)
 377         self.mute.connect("toggled", self.on_mute_toggled)
 378         self.hbox_mutesolo.pack_start(self.mute, True, True, button_padding)
 379
 380         self.solo = Gtk.ToggleButton()
 381         self.solo.set_label("S")
 382         self.solo.set_name("solo")
 383         self.solo.set_active(self.channel.solo)
 384         self.solo.connect("toggled", self.on_solo_toggled)
 385         self.hbox_mutesolo.pack_start(self.solo, True, True, button_padding)
 386
 387         self.vbox.pack_start(self.hbox_mutesolo, True, True, 0)
 388
 389         frame = Gtk.Frame()
 390         frame.set_shadow_type(Gtk.ShadowType.IN)
 391         frame.add(self.abspeak);
 392         self.pack_start(frame, False, True, 0)
 393
 394         # hbox child at lower part
 395         self.hbox = Gtk.HBox()
 396         self.hbox.pack_start(self.slider, True, True, 0)
 397         frame = Gtk.Frame()
 398         frame.set_shadow_type(Gtk.ShadowType.IN)
 399         frame.add(self.meter);
 400         self.hbox.pack_start(frame, True, True, 0)
 401         frame = Gtk.Frame()
 402         frame.set_shadow_type(Gtk.ShadowType.IN)
 403         frame.add(self.hbox);
 404         self.pack_start(frame, True, True, 0)
 405
 406         self.volume_digits.set_width_chars(6)
 407         self.pack_start(self.volume_digits, False, False, 0)
 408
 409         self.create_balance_widget()
 410
 411         self.monitor_button = Gtk.ToggleButton('MON')
 412         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 413         self.pack_start(self.monitor_button, False, False, 0)
 414
 415     def add_control_group(self, channel):
 416         control_group = ControlGroup(channel, self)
 417         control_group.show_all()
 418         self.vbox.pack_start(control_group, True, True, 0)
 419         return control_group
 420
 421     def remove_control_group(self, channel):
 422         ctlgroup = self.get_control_group(channel)
 423         self.vbox.remove(ctlgroup)
 424
 425     def update_control_group(self, channel):
 426         for control_group in self.vbox.get_children():
 427             if isinstance(control_group, ControlGroup):
 428                 if control_group.output_channel is channel:
 429                     control_group.update()
 430
 431     def get_control_group(self, channel):
 432         for control_group in self.vbox.get_children():
 433             if isinstance(control_group, ControlGroup):
 434                 if control_group.output_channel is channel:
 435                     return control_group
 436         return None
 437
 438     def unrealize(self):
 439         Channel.unrealize(self)
 440         if self.post_fader_output_channel:
 441             self.post_fader_output_channel.remove()
 442             self.post_fader_output_channel = None
 443         self.channel.remove()
 444         self.channel = None
 445
 446     channel_properties_dialog = None
 447     def on_channel_properties(self):
 448         if not self.channel_properties_dialog:
 449             self.channel_properties_dialog = ChannelPropertiesDialog(self, self.app)
 450         self.channel_properties_dialog.show()
 451         self.channel_properties_dialog.present()
 452
 453     def on_label_mouse(self, widget, event):
 454         if event.type == Gdk.EventType._2BUTTON_PRESS:
 455             if event.button == 1:
 456                 self.on_channel_properties()
 457
 458     def on_mute_toggled(self, button):
 459         self.channel.out_mute = self.mute.get_active()
 460
 461     def on_solo_toggled(self, button):
 462         self.channel.solo = self.solo.get_active()
 463
 464     def midi_events_check(self):
 465         if hasattr(self, 'channel') and self.channel.midi_in_got_events:
 466             self.mute.set_active(self.channel.out_mute)
 467             self.solo.set_active(self.channel.solo)
 468             Channel.on_midi_event_received(self)
 469
 470     def on_solo_button_pressed(self, button, event, *args):
 471         if event.button == 3:
 472             # right click on the solo button, act on all output channels
 473             if button.get_active(): # was soloed
 474                 button.set_active(False)
 475                 if hasattr(button, 'touched_channels'):
 476                     touched_channels = button.touched_channels
 477                     for chan in touched_channels:
 478                         ctlgroup = self.get_control_group(chan)
 479                         ctlgroup.solo.set_active(False)
 480                     del button.touched_channels
 481             else: # was not soloed
 482                 button.set_active(True)
 483                 touched_channels = []
 484                 for chan in self.app.output_channels:
 485                     ctlgroup = self.get_control_group(chan)
 486                     if not ctlgroup.solo.get_active():
 487                         ctlgroup.solo.set_active(True)
 488                         touched_channels.append(chan)
 489                 button.touched_channels = touched_channels
 490             return True
 491         return False
 492
 493     @classmethod
 494     def serialization_name(cls):
 495         return 'input_channel'
 496
 497     def serialize(self, object_backend):
 498         object_backend.add_property("name", self.channel_name)
 499         if self.stereo:
 500             object_backend.add_property("type", "stereo")
 501         else:
 502             object_backend.add_property("type", "mono")
 503         Channel.serialize(self, object_backend)
 504
 505     def unserialize_property(self, name, value):
 506         if name == "name":
 507             self.channel_name = str(value)
 508             return True
 509         if name == "type":
 510             if value == "stereo":
 511                 self.stereo = True
 512                 return True
 513             if value == "mono":
 514                 self.stereo = False
 515                 return True
 516         return Channel.unserialize_property(self, name, value)
 517
 518
 519 available_colours = [
 520     ('#648fcb', '#204c98', '#426cb8'),
 521     ('#984a9a', '#542656', '#744676'),
 522     ('#7f9abb', '#3f5677', '#5f7697'),
 523     ('#bf8f9f', '#7b4d5b', '#9b6f7b'),
 524     ('#ba6d89', '#762945', '#964965'),
 525     ('#4c9196', '#0c5156', '#2c7176'),
 526     ('#56a2c0', '#166280', '#3682a0'),
 527 ]
 528
 529 class OutputChannel(Channel):
 530     colours = available_colours[:]
 531     _display_solo_buttons = False
 532
 533     _init_muted_channels = None
 534     _init_solo_channels = None
 535
 536     def __init__(self, app, name, stereo):
 537         Channel.__init__(self, app, name, stereo)
 538
 539     def get_display_solo_buttons(self):
 540         return self._display_solo_buttons
 541
 542     def set_display_solo_buttons(self, value):
 543         self._display_solo_buttons = value
 544         # notifying control groups
 545         for inputchannel in self.app.channels:
 546             inputchannel.update_control_group(self)
 547
 548     display_solo_buttons = property(get_display_solo_buttons, set_display_solo_buttons)
 549
 550     def realize(self):
 551         self.channel = self.mixer.add_output_channel(self.channel_name, self.stereo)
 552         if self.channel == None:
 553             raise Exception("Cannot create a channel")
 554         Channel.realize(self)
 555         if self.future_volume_midi_cc != None:
 556             self.channel.volume_midi_cc = self.future_volume_midi_cc
 557         if self.future_balance_midi_cc != None:
 558             self.channel.balance_midi_cc = self.future_balance_midi_cc
 559         if self.future_mute_midi_cc != None:
 560             self.channel.mute_midi_cc = self.future_mute_midi_cc
 561         self.channel.midi_scale = self.slider_scale.scale
 562
 563         self.on_volume_changed(self.slider_adjustment)
 564         self.on_balance_changed(self.balance_adjustment)
 565
 566         # vbox child at upper part
 567         self.vbox = Gtk.VBox()
 568         self.pack_start(self.vbox, False, True, 0)
 569         self.label_name = Gtk.Label()
 570         self.label_name.set_text(self.channel_name)
 571         self.label_name.set_width_chars(0)
 572         self.label_name_event_box = Gtk.EventBox()
 573         self.label_name_event_box.connect('button-press-event', self.on_label_mouse)
 574         self.label_name_event_box.add(self.label_name)
 575         if not self.colours:
 576             OutputChannel.colours = available_colours[:]
 577         for color in self.colours:
 578             self.color_tuple = [Gdk.color_parse(color[x]) for x in range(3)]
 579             self.colours.remove(color)
 580             break
 581         self.label_name_event_box.modify_bg(Gtk.StateType.NORMAL, self.color_tuple[1])
 582         self.vbox.pack_start(self.label_name_event_box, True, True, 0)
 583         self.mute = Gtk.ToggleButton()
 584         self.mute.set_label("M")
 585         self.mute.set_name("mute")
 586         self.mute.set_active(self.channel.out_mute)
 587         self.mute.connect("toggled", self.on_mute_toggled)
 588         hbox = Gtk.HBox()
 589         hbox.pack_start(self.mute, True, True, button_padding)
 590         self.vbox.pack_start(hbox, True, True, button_padding)
 591
 592         frame = Gtk.Frame()
 593         frame.set_shadow_type(Gtk.ShadowType.IN)
 594         frame.add(self.abspeak);
 595         self.vbox.pack_start(frame, False, True, 0)
 596
 597         # hbox child at lower part
 598         self.hbox = Gtk.HBox()
 599         self.hbox.pack_start(self.slider, True, True, 0)
 600         frame = Gtk.Frame()
 601         frame.set_shadow_type(Gtk.ShadowType.IN)
 602         frame.add(self.meter);
 603         self.hbox.pack_start(frame, True, True, 0)
 604         frame = Gtk.Frame()
 605         frame.set_shadow_type(Gtk.ShadowType.IN)
 606         frame.add(self.hbox);
 607         self.pack_start(frame, True, True, 0)
 608
 609         self.volume_digits.set_width_chars(6)
 610         self.pack_start(self.volume_digits, False, True, 0)
 611
 612         self.create_balance_widget()
 613
 614         self.monitor_button = Gtk.ToggleButton('MON')
 615         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 616         self.pack_start(self.monitor_button, False, False, 0)
 617
 618         # add control groups to the input channels, and initialize them
 619         # appropriately
 620         for input_channel in self.app.channels:
 621             ctlgroup = input_channel.add_control_group(self)
 622             if self._init_muted_channels and input_channel.channel.name in self._init_muted_channels:
 623                 ctlgroup.mute.set_active(True)
 624             if self._init_solo_channels and input_channel.channel.name in self._init_solo_channels:
 625                 ctlgroup.solo.set_active(True)
 626         self._init_muted_channels = None
 627         self._init_solo_channels = None
 628
 629     channel_properties_dialog = None
 630     def on_channel_properties(self):
 631         if not self.channel_properties_dialog:
 632             self.channel_properties_dialog = OutputChannelPropertiesDialog(self, self.app)
 633         self.channel_properties_dialog.show()
 634         self.channel_properties_dialog.present()
 635
 636     def on_label_mouse(self, widget, event):
 637         if event.type == Gdk.EventType._2BUTTON_PRESS:
 638             if event.button == 1:
 639                 self.on_channel_properties()
 640
 641     def on_mute_toggled(self, button):
 642         self.channel.out_mute = self.mute.get_active()
 643
 644     def midi_events_check(self):
 645         if self.channel != None and self.channel.midi_in_got_events:
 646             self.mute.set_active(self.channel.out_mute)
 647             Channel.on_midi_event_received(self)
 648
 649     def unrealize(self):
 650         # remove control groups from input channels
 651         for input_channel in self.app.channels:
 652             input_channel.remove_control_group(self)
 653         # then remove itself
 654         Channel.unrealize(self)
 655         self.channel.remove()
 656         self.channel = None
 657
 658     @classmethod
 659     def serialization_name(cls):
 660         return 'output_channel'
 661
 662     def serialize(self, object_backend):
 663         object_backend.add_property("name", self.channel_name)
 664         if self.stereo:
 665             object_backend.add_property("type", "stereo")
 666         else:
 667             object_backend.add_property("type", "mono")
 668         if self.display_solo_buttons:
 669             object_backend.add_property("solo_buttons", "true")
 670         muted_channels = []
 671         solo_channels = []
 672         for input_channel in self.app.channels:
 673             if self.channel.is_muted(input_channel.channel):
 674                 muted_channels.append(input_channel)
 675             if self.channel.is_solo(input_channel.channel):
 676                 solo_channels.append(input_channel)
 677         if muted_channels:
 678             object_backend.add_property('muted_channels', '|'.join([x.channel.name for x in muted_channels]))
 679         if solo_channels:
 680             object_backend.add_property('solo_channels', '|'.join([x.channel.name for x in solo_channels]))
 681         Channel.serialize(self, object_backend)
 682
 683     def unserialize_property(self, name, value):
 684         if name == "name":
 685             self.channel_name = str(value)
 686             return True
 687         if name == "type":
 688             if value == "stereo":
 689                 self.stereo = True
 690                 return True
 691             if value == "mono":
 692                 self.stereo = False
 693                 return True
 694         if name == "solo_buttons":
 695             if value == "true":
 696                 self.display_solo_buttons = True
 697                 return True
 698         if name == 'muted_channels':
 699             self._init_muted_channels = value.split('|')
 700             return True
 701         if name == 'solo_channels':
 702             self._init_solo_channels = value.split('|')
 703             return True
 704         return Channel.unserialize_property(self, name, value)
 705
 706 class ChannelPropertiesDialog(Gtk.Dialog):
 707     channel = None
 708
 709     def __init__(self, parent, app):
 710         self.channel = parent
 711         self.app = app
 712         self.mixer = self.channel.mixer
 713         Gtk.Dialog.__init__(self, 'Channel "%s" Properties' % self.channel.channel_name, app.window)
 714
 715         self.add_button(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL)
 716         self.ok_button = self.add_button(Gtk.STOCK_APPLY, Gtk.ResponseType.APPLY)
 717         self.set_default_response(Gtk.ResponseType.APPLY);
 718
 719         self.create_ui()
 720         self.fill_ui()
 721
 722         self.connect('response', self.on_response_cb)
 723         self.connect('delete-event', self.on_response_cb)
 724
 725     def create_frame(self, label, child):
 726         frame = Gtk.Frame()
 727         frame.set_label('')
 728         frame.set_border_width(3)
 729         #frame.set_shadow_type(Gtk.ShadowType.NONE)
 730         frame.get_label_widget().set_markup('<b>%s</b>' % label)
 731
 732         alignment = Gtk.Alignment.new(0, 0, 1, 1)
 733         alignment.set_padding(0, 0, 12, 0)
 734         frame.add(alignment)
 735         alignment.add(child)
 736
 737         return frame
 738
 739     def create_ui(self):
 740         vbox = Gtk.VBox()
 741         self.vbox.add(vbox)
 742
 743         table = Gtk.Table(2, 3, False)
 744         vbox.pack_start(self.create_frame('Properties', table), True, True, 0)
 745         table.set_row_spacings(5)
 746         table.set_col_spacings(5)
 747
 748         table.attach(Gtk.Label(label='Name'), 0, 1, 0, 1)
 749         self.entry_name = Gtk.Entry()
 750         self.entry_name.set_activates_default(True)
 751         self.entry_name.connect('changed', self.on_entry_name_changed)
 752         table.attach(self.entry_name, 1, 2, 0, 1)
 753
 754         table.attach(Gtk.Label(label='Mode'), 0, 1, 1, 2)
 755         self.mode_hbox = Gtk.HBox()
 756         table.attach(self.mode_hbox, 1, 2, 1, 2)
 757         self.mono = Gtk.RadioButton(label='Mono')
 758         self.stereo = Gtk.RadioButton(label='Stereo', group=self.mono)
 759         self.mode_hbox.pack_start(self.mono, True, True, 0)
 760         self.mode_hbox.pack_start(self.stereo, True, True, 0)
 761
 762         table = Gtk.Table(2, 3, False)
 763         vbox.pack_start(self.create_frame('MIDI Control Channels', table), True, True, 0)
 764         table.set_row_spacings(5)
 765         table.set_col_spacings(5)
 766
 767         table.attach(Gtk.Label(label='Volume'), 0, 1, 0, 1)
 768         self.entry_volume_cc = Gtk.Entry()
 769         self.entry_volume_cc.set_activates_default(True)
 770         self.entry_volume_cc.set_editable(False)
 771         self.entry_volume_cc.set_width_chars(3)
 772         table.attach(self.entry_volume_cc, 1, 2, 0, 1)
 773         self.button_sense_midi_volume = Gtk.Button('Autoset')
 774         self.button_sense_midi_volume.connect('clicked',
 775                         self.on_sense_midi_volume_clicked)
 776         table.attach(self.button_sense_midi_volume, 2, 3, 0, 1)
 777
 778         table.attach(Gtk.Label(label='Balance'), 0, 1, 1, 2)
 779         self.entry_balance_cc = Gtk.Entry()
 780         self.entry_balance_cc.set_activates_default(True)
 781         self.entry_balance_cc.set_width_chars(3)
 782         self.entry_balance_cc.set_editable(False)
 783         table.attach(self.entry_balance_cc, 1, 2, 1, 2)
 784         self.button_sense_midi_balance = Gtk.Button('Autoset')
 785         self.button_sense_midi_balance.connect('clicked',
 786                         self.on_sense_midi_balance_clicked)
 787         table.attach(self.button_sense_midi_balance, 2, 3, 1, 2)
 788
 789         table.attach(Gtk.Label(label='Mute'), 0, 1, 2, 3)
 790         self.entry_mute_cc = Gtk.Entry()
 791         self.entry_mute_cc.set_activates_default(True)
 792         self.entry_mute_cc.set_editable(False)
 793         self.entry_mute_cc.set_width_chars(3)
 794         table.attach(self.entry_mute_cc, 1, 2, 2, 3)
 795         self.button_sense_midi_mute = Gtk.Button('Autoset')
 796         self.button_sense_midi_mute.connect('clicked',
 797                         self.on_sense_midi_mute_clicked)
 798         table.attach(self.button_sense_midi_mute, 2, 3, 2, 3)
 799
 800         if (isinstance(self, NewChannelDialog) or (self.channel and
 801             isinstance(self.channel, InputChannel))):
 802             table.attach(Gtk.Label(label='Solo'), 0, 1, 3, 4)
 803             self.entry_solo_cc = Gtk.Entry()
 804             self.entry_solo_cc.set_activates_default(True)
 805             self.entry_solo_cc.set_editable(False)
 806             self.entry_solo_cc.set_width_chars(3)
 807             table.attach(self.entry_solo_cc, 1, 2, 3, 4)
 808             self.button_sense_midi_solo = Gtk.Button('Autoset')
 809             self.button_sense_midi_solo.connect('clicked',
 810                             self.on_sense_midi_solo_clicked)
 811             table.attach(self.button_sense_midi_solo, 2, 3, 3, 4)
 812
 813         self.vbox.show_all()
 814
 815     def fill_ui(self):
 816         self.entry_name.set_text(self.channel.channel_name)
 817         if self.channel.channel.is_stereo:
 818             self.stereo.set_active(True)
 819         else:
 820             self.mono.set_active(True)
 821         self.mode_hbox.set_sensitive(False)
 822         self.entry_volume_cc.set_text('%s' % self.channel.channel.volume_midi_cc)
 823         self.entry_balance_cc.set_text('%s' % self.channel.channel.balance_midi_cc)
 824         self.entry_mute_cc.set_text('%s' % self.channel.channel.mute_midi_cc)
 825         if (self.channel and isinstance(self.channel, InputChannel)):
 826             self.entry_solo_cc.set_text('%s' % self.channel.channel.solo_midi_cc)
 827
 828     def sense_popup_dialog(self, entry):
 829         window = Gtk.Window.new(Gtk.WindowType.TOPLEVEL)
 830         window.set_destroy_with_parent(True)
 831         window.set_transient_for(self)
 832         window.set_decorated(False)
 833         window.set_modal(True)
 834         window.set_position(Gtk.WindowPosition.CENTER_ON_PARENT)
 835         window.set_border_width(10)
 836
 837         vbox = Gtk.VBox(10)
 838         window.add(vbox)
 839         window.timeout = 5
 840         vbox.pack_start(Gtk.Label(label='Please move the MIDI control you want to use for this function.'), True, True, 0)
 841         timeout_label = Gtk.Label(label='This window will close in 5 seconds')
 842         vbox.pack_start(timeout_label, True, True, 0)
 843         def close_sense_timeout(window, entry):
 844             window.timeout -= 1
 845             timeout_label.set_text('This window will close in %d seconds.' % window.timeout)
 846             if window.timeout == 0:
 847                 window.destroy()
 848                 entry.set_text('%s' % self.mixer.last_midi_channel)
 849                 return False
 850             return True
 851         window.show_all()
 852         GObject.timeout_add_seconds(1, close_sense_timeout, window, entry)
 853
 854     def on_sense_midi_volume_clicked(self, *args):
 855         self.mixer.last_midi_channel = int(self.entry_volume_cc.get_text())
 856         self.sense_popup_dialog(self.entry_volume_cc)
 857
 858     def on_sense_midi_balance_clicked(self, *args):
 859         self.mixer.last_midi_channel = int(self.entry_balance_cc.get_text())
 860         self.sense_popup_dialog(self.entry_balance_cc)
 861
 862     def on_sense_midi_mute_clicked(self, *args):
 863         self.mixer.last_midi_channel = int(self.entry_mute_cc.get_text())
 864         self.sense_popup_dialog(self.entry_mute_cc)
 865
 866     def on_sense_midi_solo_clicked(self, *args):
 867         self.mixer.last_midi_channel = int(self.entry_solo_cc.get_text())
 868         self.sense_popup_dialog(self.entry_solo_cc)
 869
 870     def on_response_cb(self, dlg, response_id, *args):
 871         self.channel.channel_properties_dialog = None
 872         name = self.entry_name.get_text()
 873         if response_id == Gtk.ResponseType.APPLY:
 874             self.channel.channel_name = name
 875             try:
 876                 if self.entry_volume_cc.get_text() != '-1':
 877                     self.channel.channel.volume_midi_cc = int(self.entry_volume_cc.get_text())
 878             except ValueError:
 879                 pass
 880             try:
 881                 if self.entry_balance_cc.get_text() != '-1':
 882                     self.channel.channel.balance_midi_cc = int(self.entry_balance_cc.get_text())
 883             except ValueError:
 884                 pass
 885             try:
 886                 if self.entry_mute_cc.get_text() != '-1':
 887                     self.channel.channel.mute_midi_cc = int(self.entry_mute_cc.get_text())
 888             except ValueError:
 889                 pass
 890             try:
 891                 if hasattr(self, 'entry_solo_cc') and self.entry_solo_cc.get_text() != '-1':
 892                     self.channel.channel.solo_midi_cc = int(self.entry_solo_cc.get_text())
 893             except ValueError:
 894                 pass
 895         self.destroy()
 896
 897     def on_entry_name_changed(self, entry):
 898         sensitive = False
 899         if len(entry.get_text()):
 900             if self.channel and self.channel.channel.name == entry.get_text():
 901                 sensitive = True
 902             elif entry.get_text() not in [x.channel.name for x in self.app.channels] + \
 903                         [x.channel.name for x in self.app.output_channels] + ['MAIN']:
 904                 sensitive = True
 905         self.ok_button.set_sensitive(sensitive)
 906
 907
 908 class NewChannelDialog(ChannelPropertiesDialog):
 909     def __init__(self, app):
 910         Gtk.Dialog.__init__(self, 'New Channel', app.window)
 911         self.mixer = app.mixer
 912         self.app = app
 913         self.create_ui()
 914         self.fill_ui()
 915
 916         self.stereo.set_active(True) # default to stereo
 917
 918         self.add_button(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL)
 919         self.ok_button = self.add_button(Gtk.STOCK_ADD, Gtk.ResponseType.OK)
 920         self.ok_button.set_sensitive(False)
 921         self.set_default_response(Gtk.ResponseType.OK);
 922
 923     def fill_ui(self):
 924         self.entry_volume_cc.set_text('-1')
 925         self.entry_balance_cc.set_text('-1')
 926         self.entry_mute_cc.set_text('-1')
 927         self.entry_solo_cc.set_text('-1')
 928
 929     def get_result(self):
 930         return {'name': self.entry_name.get_text(),
 931                 'stereo': self.stereo.get_active(),
 932                 'volume_cc': self.entry_volume_cc.get_text(),
 933                 'balance_cc': self.entry_balance_cc.get_text(),
 934                 'mute_cc': self.entry_mute_cc.get_text(),
 935                 'solo_cc': self.entry_solo_cc.get_text()
 936                }
 937
 938 class OutputChannelPropertiesDialog(ChannelPropertiesDialog):
 939     def create_ui(self):
 940         ChannelPropertiesDialog.create_ui(self)
 941
 942         vbox = Gtk.VBox()
 943         self.vbox.pack_start(self.create_frame('Input Channels', vbox), True, True, 0)
 944
 945         self.display_solo_buttons = Gtk.CheckButton('Display solo buttons')
 946         vbox.pack_start(self.display_solo_buttons, True, True, 0)
 947
 948         self.vbox.show_all()
 949
 950     def fill_ui(self):
 951         ChannelPropertiesDialog.fill_ui(self)
 952         self.display_solo_buttons.set_active(self.channel.display_solo_buttons)
 953
 954     def on_response_cb(self, dlg, response_id, *args):
 955         if response_id == Gtk.ResponseType.APPLY:
 956             self.channel.display_solo_buttons = self.display_solo_buttons.get_active()
 957         ChannelPropertiesDialog.on_response_cb(self, dlg, response_id, *args)
 958
 959
 960 class NewOutputChannelDialog(OutputChannelPropertiesDialog):
 961     def __init__(self, app):
 962         Gtk.Dialog.__init__(self, 'New Output Channel', app.window)
 963         self.mixer = app.mixer
 964         self.app = app
 965         self.create_ui()
 966         self.fill_ui()
 967
 968         # TODO: disable mode for output channels as mono output channels may
 969         # not be correctly handled yet.
 970         self.mode_hbox.set_sensitive(False)
 971         self.stereo.set_active(True) # default to stereo
 972
 973         self.add_button(Gtk.STOCK_CANCEL, Gtk.ResponseType.CANCEL)
 974         self.ok_button = self.add_button(Gtk.STOCK_ADD, Gtk.ResponseType.OK)
 975         self.ok_button.set_sensitive(False)
 976         self.set_default_response(Gtk.ResponseType.OK);
 977
 978     def fill_ui(self):
 979         self.entry_volume_cc.set_text('-1')
 980         self.entry_balance_cc.set_text('-1')
 981         self.entry_mute_cc.set_text('-1')
 982
 983     def get_result(self):
 984         return {'name': self.entry_name.get_text(),
 985                 'stereo': self.stereo.get_active(),
 986                 'volume_cc': self.entry_volume_cc.get_text(),
 987                 'balance_cc': self.entry_balance_cc.get_text(),
 988                 'mute_cc': self.entry_mute_cc.get_text(),
 989                 'display_solo_buttons': self.display_solo_buttons.get_active(),
 990                }
 991
 992 class ControlGroup(Gtk.Alignment):
 993     def __init__(self, output_channel, input_channel):
 994         GObject.GObject.__init__(self)
 995         self.set(0.5, 0.5, 1, 1)
 996         self.output_channel = output_channel
 997         self.input_channel = input_channel
 998         self.app = input_channel.app
 999
1000         hbox = Gtk.HBox()
1001         vbox = Gtk.VBox()
1002         self.hbox = hbox
1003         vbox.pack_start(hbox, True, True, button_padding)
1004         self.add(vbox)
1005
1006         vbox.modify_bg(Gtk.StateType.NORMAL, output_channel.color_tuple[1])
1007         mute_name = "%s_mute" % output_channel.channel.name
1008         mute = Gtk.ToggleButton()
1009         mute.set_label("M")
1010         mute.set_name("mute")
1011         mute.connect("toggled", self.on_mute_toggled)
1012         self.mute = mute
1013         hbox.pack_start(mute, True, True, button_padding)
1014         solo = Gtk.ToggleButton()
1015         solo.set_name("solo")
1016         solo.set_label("S")
1017         solo.connect("toggled", self.on_solo_toggled)
1018         self.solo = solo
1019
1020         if self.output_channel.display_solo_buttons:
1021             hbox.pack_start(solo, True, True, button_padding)
1022
1023     def update(self):
1024         if self.output_channel.display_solo_buttons:
1025             if not self.solo in self.hbox.get_children():
1026                 self.hbox.pack_start(self.solo, True, True, 0)
1027                 self.solo.show()
1028         else:
1029             if self.solo in self.hbox.get_children():
1030                 self.hbox.remove(self.solo)
1031
1032     def on_mute_toggled(self, button):
1033         self.output_channel.channel.set_muted(self.input_channel.channel, button.get_active())
1034         self.app.update_monitor(self)
1035
1036     def on_solo_toggled(self, button):
1037         self.output_channel.channel.set_solo(self.input_channel.channel, button.get_active())
1038         self.app.update_monitor(self)
1039