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 SerializedObject
  27
  28 try:
  29     import phat
  30 except:
  31     phat = None
  32
  33
  34 class Channel(gtk.VBox, SerializedObject):
  35     '''Widget with slider and meter used as base class for more specific
  36        channel widgets'''
  37     monitor_button = None
  38
  39     def __init__(self, app, name, stereo):
  40         gtk.VBox.__init__(self)
  41         self.app = app
  42         self.mixer = app.mixer
  43         self.gui_factory = app.gui_factory
  44         self._channel_name = name
  45         self.stereo = stereo
  46         self.meter_scale = self.gui_factory.get_default_meter_scale()
  47         self.slider_scale = self.gui_factory.get_default_slider_scale()
  48         self.slider_adjustment = slider.AdjustmentdBFS(self.slider_scale, 0.0)
  49         self.balance_adjustment = gtk.Adjustment(0.0, -1.0, 1.0, 0.02)
  50         self.future_volume_midi_cc = None
  51         self.future_balance_midi_cc = None
  52
  53     def get_channel_name(self):
  54         return self._channel_name
  55
  56     label_name = None
  57     channel = None
  58     def set_channel_name(self, name):
  59         self._channel_name = name
  60         if self.label_name:
  61             self.label_name.set_text(name)
  62         if self.channel:
  63             self.channel.name = name
  64     channel_name = property(get_channel_name, set_channel_name)
  65
  66     def realize(self):
  67         #print "Realizing channel \"%s\"" % self.channel_name
  68
  69         self.slider_adjustment.connect("volume-changed", self.on_volume_changed)
  70         self.balance_adjustment.connect("value-changed", self.on_balance_changed)
  71         self.connect('midi-event-received', self.on_midi_event_received)
  72
  73         self.slider = None
  74         self.create_slider_widget()
  75
  76         if self.stereo:
  77             self.meter = meter.StereoMeterWidget(self.meter_scale)
  78         else:
  79             self.meter = meter.MonoMeterWidget(self.meter_scale)
  80         self.on_vumeter_color_changed(self.gui_factory)
  81
  82         self.meter.set_events(gtk.gdk.SCROLL_MASK)
  83
  84         self.gui_factory.connect("default-meter-scale-changed", self.on_default_meter_scale_changed)
  85         self.gui_factory.connect("default-slider-scale-changed", self.on_default_slider_scale_changed)
  86         self.gui_factory.connect('vumeter-color-changed', self.on_vumeter_color_changed)
  87         self.gui_factory.connect('vumeter-color-scheme-changed', self.on_vumeter_color_changed)
  88         self.gui_factory.connect('use-custom-widgets-changed', self.on_custom_widgets_changed)
  89
  90         self.abspeak = abspeak.AbspeakWidget()
  91         self.abspeak.connect("reset", self.on_abspeak_reset)
  92         self.abspeak.connect("volume-adjust", self.on_abspeak_adjust)
  93
  94         self.volume_digits = gtk.Entry()
  95         self.volume_digits.connect("key-press-event", self.on_volume_digits_key_pressed)
  96         self.volume_digits.connect("focus-out-event", self.on_volume_digits_focus_out)
  97
  98         self.connect("key-press-event", self.on_key_pressed)
  99         self.connect("scroll-event", self.on_scroll)
 100
 101     def unrealize(self):
 102         #print "Unrealizing channel \"%s\"" % self.channel_name
 103         pass
 104
 105     def create_balance_widget(self):
 106         if self.gui_factory.use_custom_widgets and phat:
 107             self.balance = phat.HFanSlider()
 108             self.balance.set_default_value(0)
 109             self.balance.set_adjustment(self.balance_adjustment)
 110         else:
 111             self.balance = gtk.HScale(self.balance_adjustment)
 112             self.balance.set_draw_value(False)
 113         self.pack_start(self.balance, False)
 114         if self.monitor_button:
 115             self.reorder_child(self.monitor_button, -1)
 116         self.balance.show()
 117
 118     def create_slider_widget(self):
 119         parent = None
 120         if self.slider:
 121             parent = self.slider.get_parent()
 122             self.slider.destroy()
 123         if self.gui_factory.use_custom_widgets:
 124             self.slider = slider.CustomSliderWidget(self.slider_adjustment)
 125         else:
 126             self.slider = slider.GtkSlider(self.slider_adjustment)
 127         if parent:
 128             parent.pack_start(self.slider)
 129             parent.reorder_child(self.slider, 0)
 130         self.slider.show()
 131
 132     def on_default_meter_scale_changed(self, gui_factory, scale):
 133         #print "Default meter scale change detected."
 134         self.meter.set_scale(scale)
 135
 136     def on_default_slider_scale_changed(self, gui_factory, scale):
 137         #print "Default slider scale change detected."
 138         self.slider_scale = scale
 139         self.slider_adjustment.set_scale(scale)
 140         self.channel.midi_scale = self.slider_scale.scale
 141
 142     def on_vumeter_color_changed(self, gui_factory, *args):
 143         color = gui_factory.get_vumeter_color()
 144         color_scheme = gui_factory.get_vumeter_color_scheme()
 145         if color_scheme != 'solid':
 146             self.meter.set_color(None)
 147         else:
 148             self.meter.set_color(gtk.gdk.color_parse(color))
 149
 150     def on_custom_widgets_changed(self, gui_factory, value):
 151         self.balance.destroy()
 152         self.create_balance_widget()
 153         self.create_slider_widget()
 154
 155     def on_abspeak_adjust(self, abspeak, adjust):
 156         #print "abspeak adjust %f" % adjust
 157         self.slider_adjustment.set_value_db(self.slider_adjustment.get_value_db() + adjust)
 158         self.channel.abspeak = None
 159         #self.update_volume(False)   # We want to update gui even if actual decibels have not changed (scale wrap for example)
 160
 161     def on_abspeak_reset(self, abspeak):
 162         #print "abspeak reset"
 163         self.channel.abspeak = None
 164
 165     def on_volume_digits_key_pressed(self, widget, event):
 166         if (event.keyval == gtk.keysyms.Return or event.keyval == gtk.keysyms.KP_Enter):
 167             db_text = self.volume_digits.get_text()
 168             try:
 169                 db = float(db_text)
 170                 #print "Volume digits confirmation \"%f dBFS\"" % db
 171             except (ValueError), e:
 172                 #print "Volume digits confirmation ignore, reset to current"
 173                 self.update_volume(False)
 174                 return
 175             self.slider_adjustment.set_value_db(db)
 176             #self.grab_focus()
 177             #self.update_volume(False)   # We want to update gui even if actual decibels have not changed (scale wrap for example)
 178
 179     def on_volume_digits_focus_out(self, widget, event):
 180         #print "volume digits focus out detected"
 181         self.update_volume(False)
 182
 183     def read_meter(self):
 184         if not self.channel:
 185             return
 186         if self.stereo:
 187             meter_left, meter_right = self.channel.meter
 188             self.meter.set_values(meter_left, meter_right)
 189         else:
 190             self.meter.set_value(self.channel.meter[0])
 191
 192         self.abspeak.set_peak(self.channel.abspeak)
 193
 194     def on_scroll(self, widget, event):
 195         if event.direction == gtk.gdk.SCROLL_DOWN:
 196             self.slider_adjustment.step_down()
 197         elif event.direction == gtk.gdk.SCROLL_UP:
 198             self.slider_adjustment.step_up()
 199         return True
 200
 201     def update_volume(self, update_engine):
 202         db = self.slider_adjustment.get_value_db()
 203
 204         db_text = "%.2f" % db
 205         self.volume_digits.set_text(db_text)
 206
 207         if update_engine:
 208             #print "Setting engine volume to " + db_text
 209             self.channel.volume = db
 210             self.app.update_monitor(self)
 211
 212     def on_volume_changed(self, adjustment):
 213         self.update_volume(True)
 214
 215     def on_balance_changed(self, adjustment):
 216         balance = self.balance_adjustment.get_value()
 217         #print "%s balance: %f" % (self.channel_name, balance)
 218         self.channel.balance = balance
 219         self.app.update_monitor(self)
 220
 221     def on_key_pressed(self, widget, event):
 222         if (event.keyval == gtk.keysyms.Up):
 223             #print self.channel_name + " Up"
 224             self.slider_adjustment.step_up()
 225             return True
 226         elif (event.keyval == gtk.keysyms.Down):
 227             #print self.channel_name + " Down"
 228             self.slider_adjustment.step_down()
 229             return True
 230
 231         return False
 232
 233     def serialize(self, object_backend):
 234         object_backend.add_property("volume", "%f" % self.slider_adjustment.get_value_db())
 235         object_backend.add_property("balance", "%f" % self.balance_adjustment.get_value())
 236
 237         if self.channel.volume_midi_cc:
 238             object_backend.add_property('volume_midi_cc', str(self.channel.volume_midi_cc))
 239         if self.channel.balance_midi_cc:
 240             object_backend.add_property('balance_midi_cc', str(self.channel.balance_midi_cc))
 241
 242     def unserialize_property(self, name, value):
 243         if name == "volume":
 244             self.slider_adjustment.set_value_db(float(value))
 245             return True
 246         if name == "balance":
 247             self.balance_adjustment.set_value(float(value))
 248             return True
 249         if name == 'volume_midi_cc':
 250             self.future_volume_midi_cc = int(value)
 251             return True
 252         if name == 'balance_midi_cc':
 253             self.future_balance_midi_cc = int(value)
 254             return True
 255         return False
 256
 257     def on_midi_event_received(self, *args):
 258         self.slider_adjustment.set_value_db(self.channel.volume)
 259         self.balance_adjustment.set_value(self.channel.balance)
 260
 261     def midi_change_callback(self, *args):
 262         # the changes are not applied directly to the widgets as they
 263         # absolutely have to be done from the gtk thread.
 264         self.emit('midi-event-received')
 265
 266     def on_monitor_button_toggled(self, button):
 267         if not button.get_active():
 268             self.app.main_mix.monitor_button.set_active(True)
 269         else:
 270             for channel in self.app.channels + self.app.output_channels + [self.app.main_mix]:
 271                 if channel.monitor_button.get_active() and channel.monitor_button is not button:
 272                     channel.monitor_button.handler_block_by_func(
 273                                 channel.on_monitor_button_toggled)
 274                     channel.monitor_button.set_active(False)
 275                     channel.monitor_button.handler_unblock_by_func(
 276                                 channel.on_monitor_button_toggled)
 277             self.app.set_monitored_channel(self)
 278
 279     def set_monitored(self):
 280         if self.channel:
 281             self.app.set_monitored_channel(self)
 282         self.monitor_button.set_active(True)
 283
 284 gobject.signal_new('midi-event-received', Channel,
 285                 gobject.SIGNAL_RUN_FIRST | gobject.SIGNAL_ACTION,
 286                 gobject.TYPE_NONE, ())
 287
 288 class InputChannel(Channel):
 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         self.channel.remove()
 396         self.channel = None
 397
 398     channel_properties_dialog = None
 399     def on_channel_properties(self):
 400         if not self.channel_properties_dialog:
 401             self.channel_properties_dialog = ChannelPropertiesDialog(self, self.app)
 402         self.channel_properties_dialog.show()
 403         self.channel_properties_dialog.present()
 404
 405     def on_label_mouse(self, widget, event):
 406         if event.type == gtk.gdk._2BUTTON_PRESS:
 407             if event.button == 1:
 408                 self.on_channel_properties()
 409
 410     def on_mute_toggled(self, button):
 411         self.channel.mute = self.mute.get_active()
 412         self.app.update_monitor(self.app.main_mix)
 413
 414     def on_mute_button_pressed(self, button, event, *args):
 415         if event.button == 3:
 416             # right click on the mute button, act on all output channels
 417             if button.get_active(): # was muted
 418                 button.set_active(False)
 419                 if hasattr(button, 'touched_channels'):
 420                     touched_channels = button.touched_channels
 421                     for chan in touched_channels:
 422                         ctlgroup = self.get_control_group(chan)
 423                         ctlgroup.mute.set_active(False)
 424                     del button.touched_channels
 425             else: # was not muted
 426                 button.set_active(True)
 427                 touched_channels = []
 428                 for chan in self.app.output_channels:
 429                     ctlgroup = self.get_control_group(chan)
 430                     if not ctlgroup.mute.get_active():
 431                         ctlgroup.mute.set_active(True)
 432                         touched_channels.append(chan)
 433                 button.touched_channels = touched_channels
 434             return True
 435         return False
 436
 437     def on_solo_toggled(self, button):
 438         self.channel.solo = self.solo.get_active()
 439         self.app.update_monitor(self.app.main_mix)
 440
 441     def on_solo_button_pressed(self, button, event, *args):
 442         if event.button == 3:
 443             # right click on the solo button, act on all output channels
 444             if button.get_active(): # was soloed
 445                 button.set_active(False)
 446                 if hasattr(button, 'touched_channels'):
 447                     touched_channels = button.touched_channels
 448                     for chan in touched_channels:
 449                         ctlgroup = self.get_control_group(chan)
 450                         ctlgroup.solo.set_active(False)
 451                     del button.touched_channels
 452             else: # was not soloed
 453                 button.set_active(True)
 454                 touched_channels = []
 455                 for chan in self.app.output_channels:
 456                     ctlgroup = self.get_control_group(chan)
 457                     if not ctlgroup.solo.get_active():
 458                         ctlgroup.solo.set_active(True)
 459                         touched_channels.append(chan)
 460                 button.touched_channels = touched_channels
 461             return True
 462         return False
 463
 464     def serialization_name(self):
 465         return input_channel_serialization_name()
 466
 467     def serialize(self, object_backend):
 468         object_backend.add_property("name", self.channel_name)
 469         if self.stereo:
 470             object_backend.add_property("type", "stereo")
 471         else:
 472             object_backend.add_property("type", "mono")
 473         Channel.serialize(self, object_backend)
 474
 475     def unserialize_property(self, name, value):
 476         if name == "name":
 477             self.channel_name = str(value)
 478             return True
 479         if name == "type":
 480             if value == "stereo":
 481                 self.stereo = True
 482                 return True
 483             if value == "mono":
 484                 self.stereo = False
 485                 return True
 486         return Channel.unserialize_property(self, name, value)
 487
 488 def input_channel_serialization_name():
 489     return "input_channel"
 490
 491
 492 available_colours = [
 493     ('#ef2929', '#cc0000', '#840000'),
 494     ('#729fcf', '#3465a4', '#204a67'),
 495     ('#8aa234', '#73d216', '#4e7a06'),
 496     ('#fce84f', '#edd400', '#c48000'),
 497     ('#fcaf3e', '#f57900', '#ae5c00'),
 498     ('#ad7fa8', '#75507b', '#4c3556'),
 499     ('#e9b96e', '#c17d11', '#6f4902'),
 500 ]
 501
 502 class OutputChannel(Channel):
 503     colours = available_colours[:]
 504     _display_solo_buttons = False
 505
 506     _init_muted_channels = None
 507     _init_solo_channels = None
 508
 509     def __init__(self, app, name, stereo):
 510         Channel.__init__(self, app, name, stereo)
 511
 512     def get_display_solo_buttons(self):
 513         return self._display_solo_buttons
 514
 515     def set_display_solo_buttons(self, value):
 516         self._display_solo_buttons = value
 517         # notifying control groups
 518         for inputchannel in self.app.channels:
 519             inputchannel.update_control_group(self)
 520
 521     display_solo_buttons = property(get_display_solo_buttons, set_display_solo_buttons)
 522
 523     def realize(self):
 524         Channel.realize(self)
 525         self.channel = self.mixer.add_output_channel(self.channel_name, self.stereo)
 526         if self.channel == None:
 527             raise Exception,"Cannot create a channel"
 528         Channel.realize(self)
 529
 530         self.channel.midi_scale = self.slider_scale.scale
 531         self.channel.midi_change_callback = self.midi_change_callback
 532
 533         self.on_volume_changed(self.slider_adjustment)
 534         self.on_balance_changed(self.balance_adjustment)
 535
 536         # vbox child at upper part
 537         self.vbox = gtk.VBox()
 538         self.pack_start(self.vbox, False)
 539         self.label_name = gtk.Label()
 540         self.label_name.set_text(self.channel_name)
 541         self.label_name.set_size_request(0, -1)
 542         self.label_name_event_box = gtk.EventBox()
 543         self.label_name_event_box.connect('button-press-event', self.on_label_mouse)
 544         self.label_name_event_box.add(self.label_name)
 545         if not self.colours:
 546             OutputChannel.colours = available_colours[:]
 547         for color in self.colours:
 548             self.color_tuple = [gtk.gdk.color_parse(color[x]) for x in range(3)]
 549             self.colours.remove(color)
 550             break
 551         self.label_name_event_box.modify_bg(gtk.STATE_NORMAL, self.color_tuple[1])
 552         self.vbox.pack_start(self.label_name_event_box, True)
 553         frame = gtk.Frame()
 554         frame.set_shadow_type(gtk.SHADOW_IN)
 555         frame.add(self.abspeak);
 556         self.vbox.pack_start(frame, False)
 557
 558         # hbox child at lower part
 559         self.hbox = gtk.HBox()
 560         self.hbox.pack_start(self.slider, True)
 561         frame = gtk.Frame()
 562         frame.set_shadow_type(gtk.SHADOW_IN)
 563         frame.add(self.meter);
 564         self.hbox.pack_start(frame, True)
 565         frame = gtk.Frame()
 566         frame.set_shadow_type(gtk.SHADOW_IN)
 567         frame.add(self.hbox);
 568         self.pack_start(frame, True)
 569
 570         self.volume_digits.set_size_request(0, -1)
 571         self.pack_start(self.volume_digits, False)
 572
 573         self.create_balance_widget()
 574
 575         self.monitor_button = gtk.ToggleButton('MON')
 576         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 577         self.pack_start(self.monitor_button, False, False)
 578
 579         # add control groups to the input channels, and initialize them
 580         # appropriately
 581         for input_channel in self.app.channels:
 582             ctlgroup = input_channel.add_control_group(self)
 583             if self._init_muted_channels and input_channel.channel.name in self._init_muted_channels:
 584                 ctlgroup.mute.set_active(True)
 585             if self._init_solo_channels and input_channel.channel.name in self._init_solo_channels:
 586                 ctlgroup.solo.set_active(True)
 587         self._init_muted_channels = None
 588         self._init_solo_channels = None
 589
 590     channel_properties_dialog = None
 591     def on_channel_properties(self):
 592         if not self.channel_properties_dialog:
 593             self.channel_properties_dialog = OutputChannelPropertiesDialog(self, self.app)
 594         self.channel_properties_dialog.show()
 595         self.channel_properties_dialog.present()
 596
 597     def on_label_mouse(self, widget, event):
 598         if event.type == gtk.gdk._2BUTTON_PRESS:
 599             if event.button == 1:
 600                 self.on_channel_properties()
 601
 602     def unrealize(self):
 603         # remove control groups from input channels
 604         for input_channel in self.app.channels:
 605             input_channel.remove_control_group(self)
 606         # then remove itself
 607         Channel.unrealize(self)
 608         self.channel.remove()
 609         self.channel = None
 610
 611     def serialization_name(self):
 612         return output_channel_serialization_name()
 613
 614     def serialize(self, object_backend):
 615         object_backend.add_property("name", self.channel_name)
 616         if self.stereo:
 617             object_backend.add_property("type", "stereo")
 618         else:
 619             object_backend.add_property("type", "mono")
 620         if self.display_solo_buttons:
 621             object_backend.add_property("solo_buttons", "true")
 622         muted_channels = []
 623         solo_channels = []
 624         for input_channel in self.app.channels:
 625             if self.channel.is_muted(input_channel.channel):
 626                 muted_channels.append(input_channel)
 627             if self.channel.is_solo(input_channel.channel):
 628                 solo_channels.append(input_channel)
 629         if muted_channels:
 630             object_backend.add_property('muted_channels', '|'.join([x.channel.name for x in muted_channels]))
 631         if solo_channels:
 632             object_backend.add_property('solo_channels', '|'.join([x.channel.name for x in solo_channels]))
 633         Channel.serialize(self, object_backend)
 634
 635     def unserialize_property(self, name, value):
 636         if name == "name":
 637             self.channel_name = str(value)
 638             return True
 639         if name == "type":
 640             if value == "stereo":
 641                 self.stereo = True
 642                 return True
 643             if value == "mono":
 644                 self.stereo = False
 645                 return True
 646         if name == "solo_buttons":
 647             if value == "true":
 648                 self.display_solo_buttons = True
 649                 return True
 650         if name == 'muted_channels':
 651             self._init_muted_channels = value.split('|')
 652             return True
 653         if name == 'solo_channels':
 654             self._init_solo_channels = value.split('|')
 655             return True
 656         return Channel.unserialize_property(self, name, value)
 657
 658 def output_channel_serialization_name():
 659     return "output_channel"
 660
 661 class MainMixChannel(Channel):
 662     _init_muted_channels = None
 663     _init_solo_channels = None
 664
 665     def __init__(self, app):
 666         Channel.__init__(self, app, "MAIN", True)
 667
 668     def realize(self):
 669         Channel.realize(self)
 670         self.channel = self.mixer.main_mix_channel
 671         self.channel.midi_scale = self.slider_scale.scale
 672         self.channel.midi_change_callback = self.midi_change_callback
 673
 674         self.on_volume_changed(self.slider_adjustment)
 675         self.on_balance_changed(self.balance_adjustment)
 676
 677         # vbox child at upper part
 678         self.vbox = gtk.VBox()
 679         self.pack_start(self.vbox, False)
 680         self.label_name = gtk.Label()
 681         self.label_name.set_text(self.channel_name)
 682         self.label_name.set_size_request(0, -1)
 683         self.vbox.pack_start(self.label_name, False)
 684         frame = gtk.Frame()
 685         frame.set_shadow_type(gtk.SHADOW_IN)
 686         frame.add(self.abspeak);
 687         self.vbox.pack_start(frame, False)
 688
 689         # hbox child at lower part
 690         self.hbox = gtk.HBox()
 691         self.hbox.pack_start(self.slider, True)
 692         frame = gtk.Frame()
 693         frame.set_shadow_type(gtk.SHADOW_IN)
 694         frame.add(self.meter);
 695         self.hbox.pack_start(frame, True)
 696         frame = gtk.Frame()
 697         frame.set_shadow_type(gtk.SHADOW_IN)
 698         frame.add(self.hbox);
 699         self.pack_start(frame, True)
 700
 701         self.volume_digits.set_size_request(0, -1)
 702         self.pack_start(self.volume_digits, False)
 703
 704         self.create_balance_widget()
 705
 706         self.monitor_button = gtk.ToggleButton('MON')
 707         self.monitor_button.connect('toggled', self.on_monitor_button_toggled)
 708         self.pack_start(self.monitor_button, False, False)
 709
 710         for input_channel in self.app.channels:
 711             if self._init_muted_channels and input_channel.channel.name in self._init_muted_channels:
 712                 input_channel.mute.set_active(True)
 713             if self._init_solo_channels and input_channel.channel.name in self._init_solo_channels:
 714                 input_channel.solo.set_active(True)
 715         self._init_muted_channels = None
 716         self._init_solo_channels = None
 717
 718     def unrealize(self):
 719         Channel.unrealize(self)
 720         self.channel = False
 721
 722     def serialization_name(self):
 723         return main_mix_serialization_name()
 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 def main_mix_serialization_name():
 749     return "main_mix_channel"
 750
 751
 752 class ChannelPropertiesDialog(gtk.Dialog):
 753     channel = None
 754
 755     def __init__(self, parent, app):
 756         self.channel = parent
 757         self.app = app
 758         self.mixer = self.channel.mixer
 759         gtk.Dialog.__init__(self,
 760                         'Channel "%s" Properties' % self.channel.channel_name,
 761                         self.channel.gui_factory.topwindow)
 762
 763         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 764         self.ok_button = self.add_button(gtk.STOCK_APPLY, gtk.RESPONSE_APPLY)
 765
 766         self.create_ui()
 767         self.fill_ui()
 768
 769         self.connect('response', self.on_response_cb)
 770         self.connect('delete-event', self.on_response_cb)
 771
 772     def create_frame(self, label, child):
 773         frame = gtk.Frame('')
 774         frame.set_border_width(3)
 775         #frame.set_shadow_type(gtk.SHADOW_NONE)
 776         frame.get_label_widget().set_markup('<b>%s</b>' % label)
 777
 778         alignment = gtk.Alignment(0, 0, 1, 1)
 779         alignment.set_padding(0, 0, 12, 0)
 780         frame.add(alignment)
 781         alignment.add(child)
 782
 783         return frame
 784
 785     def create_ui(self):
 786         vbox = gtk.VBox()
 787         self.vbox.add(vbox)
 788
 789         table = gtk.Table(2, 2, False)
 790         vbox.pack_start(self.create_frame('Properties', table))
 791         table.set_row_spacings(5)
 792         table.set_col_spacings(5)
 793
 794         table.attach(gtk.Label('Name'), 0, 1, 0, 1)
 795         self.entry_name = gtk.Entry()
 796         self.entry_name.set_activates_default(True)
 797         self.entry_name.connect('changed', self.on_entry_name_changed)
 798         table.attach(self.entry_name, 1, 2, 0, 1)
 799
 800         table.attach(gtk.Label('Mode'), 0, 1, 1, 2)
 801         self.mode_hbox = gtk.HBox()
 802         table.attach(self.mode_hbox, 1, 2, 1, 2)
 803         self.mono = gtk.RadioButton(label='Mono')
 804         self.stereo = gtk.RadioButton(label='Stereo', group=self.mono)
 805         self.mode_hbox.pack_start(self.mono)
 806         self.mode_hbox.pack_start(self.stereo)
 807
 808         table = gtk.Table(2, 3, False)
 809         vbox.pack_start(self.create_frame('MIDI Control Channels', table))
 810         table.set_row_spacings(5)
 811         table.set_col_spacings(5)
 812
 813         table.attach(gtk.Label('Volume'), 0, 1, 0, 1)
 814         self.entry_volume_cc = gtk.Entry()
 815         self.entry_volume_cc.set_activates_default(True)
 816         self.entry_volume_cc.set_editable(False)
 817         self.entry_volume_cc.set_width_chars(3)
 818         table.attach(self.entry_volume_cc, 1, 2, 0, 1)
 819         self.button_sense_midi_volume = gtk.Button('Autoset')
 820         self.button_sense_midi_volume.connect('clicked',
 821                         self.on_sense_midi_volume_clicked)
 822         table.attach(self.button_sense_midi_volume, 2, 3, 0, 1)
 823
 824         table.attach(gtk.Label('Balance'), 0, 1, 1, 2)
 825         self.entry_balance_cc = gtk.Entry()
 826         self.entry_balance_cc.set_activates_default(True)
 827         self.entry_balance_cc.set_width_chars(3)
 828         self.entry_balance_cc.set_editable(False)
 829         table.attach(self.entry_balance_cc, 1, 2, 1, 2)
 830         self.button_sense_midi_balance = gtk.Button('Autoset')
 831         self.button_sense_midi_balance.connect('clicked',
 832                         self.on_sense_midi_balance_clicked)
 833         table.attach(self.button_sense_midi_balance, 2, 3, 1, 2)
 834
 835         self.vbox.show_all()
 836
 837     def fill_ui(self):
 838         self.entry_name.set_text(self.channel.channel_name)
 839         if self.channel.channel.is_stereo:
 840             self.stereo.set_active(True)
 841         else:
 842             self.mono.set_active(True)
 843         self.mode_hbox.set_sensitive(False)
 844         self.entry_volume_cc.set_text('%s' % self.channel.channel.volume_midi_cc)
 845         self.entry_balance_cc.set_text('%s' % self.channel.channel.balance_midi_cc)
 846
 847     def sense_popup_dialog(self, entry):
 848         window = gtk.Window(gtk.WINDOW_TOPLEVEL)
 849         window.set_destroy_with_parent(True)
 850         window.set_transient_for(self)
 851         window.set_decorated(False)
 852         window.set_modal(True)
 853         window.set_position(gtk.WIN_POS_CENTER_ON_PARENT)
 854         window.set_border_width(10)
 855
 856         vbox = gtk.VBox(10)
 857         window.add(vbox)
 858         window.timeout = 5
 859         vbox.pack_start(gtk.Label('Please move the MIDI control you want to use for this function.'))
 860         timeout_label = gtk.Label('This window will close in 5 seconds')
 861         vbox.pack_start(timeout_label)
 862         def close_sense_timeout(window, entry):
 863             window.timeout -= 1
 864             timeout_label.set_text('This window will close in %d seconds.' % window.timeout)
 865             if window.timeout == 0:
 866                 window.destroy()
 867                 entry.set_text('%s' % self.mixer.last_midi_channel)
 868                 return False
 869             return True
 870         window.show_all()
 871         glib.timeout_add_seconds(1, close_sense_timeout, window, entry)
 872
 873     def on_sense_midi_volume_clicked(self, *args):
 874         self.sense_popup_dialog(self.entry_volume_cc)
 875
 876     def on_sense_midi_balance_clicked(self, *args):
 877         self.sense_popup_dialog(self.entry_balance_cc)
 878
 879     def on_response_cb(self, dlg, response_id, *args):
 880         self.channel.channel_properties_dialog = None
 881         self.destroy()
 882         if response_id == gtk.RESPONSE_APPLY:
 883             name = self.entry_name.get_text()
 884             self.channel.channel_name = name
 885             self.channel.channel.volume_midi_cc = int(self.entry_volume_cc.get_text())
 886             self.channel.channel.balance_midi_cc = int(self.entry_balance_cc.get_text())
 887
 888     def on_entry_name_changed(self, entry):
 889         sensitive = False
 890         if len(entry.get_text()):
 891             if self.channel and self.channel.channel.name == entry.get_text():
 892                 sensitive = True
 893             elif entry.get_text() not in [x.channel.name for x in self.app.channels] + \
 894                         [x.channel.name for x in self.app.output_channels] + ['MAIN']:
 895                 sensitive = True
 896         self.ok_button.set_sensitive(sensitive)
 897
 898
 899 class NewChannelDialog(ChannelPropertiesDialog):
 900     def __init__(self, app):
 901         gtk.Dialog.__init__(self, 'New Channel', app.window)
 902         self.mixer = app.mixer
 903         self.app = app
 904         self.create_ui()
 905
 906         self.stereo.set_active(True) # default to stereo
 907
 908         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 909         self.ok_button = self.add_button(gtk.STOCK_ADD, gtk.RESPONSE_OK)
 910         self.ok_button.set_sensitive(False)
 911         self.set_default_response(gtk.RESPONSE_OK);
 912
 913     def get_result(self):
 914         return {'name': self.entry_name.get_text(),
 915                 'stereo': self.stereo.get_active(),
 916                 'volume_cc': self.entry_volume_cc.get_text(),
 917                 'balance_cc': self.entry_balance_cc.get_text()
 918                }
 919
 920 class OutputChannelPropertiesDialog(ChannelPropertiesDialog):
 921     def create_ui(self):
 922         ChannelPropertiesDialog.create_ui(self)
 923
 924         vbox = gtk.VBox()
 925         self.vbox.pack_start(self.create_frame('Input Channels', vbox))
 926
 927         self.display_solo_buttons = gtk.CheckButton('Display solo buttons')
 928         vbox.pack_start(self.display_solo_buttons)
 929
 930         self.vbox.show_all()
 931
 932     def fill_ui(self):
 933         ChannelPropertiesDialog.fill_ui(self)
 934         self.display_solo_buttons.set_active(self.channel.display_solo_buttons)
 935
 936     def on_response_cb(self, dlg, response_id, *args):
 937         ChannelPropertiesDialog.on_response_cb(self, dlg, response_id, *args)
 938         if response_id == gtk.RESPONSE_APPLY:
 939             self.channel.display_solo_buttons = self.display_solo_buttons.get_active()
 940
 941
 942 class NewOutputChannelDialog(OutputChannelPropertiesDialog):
 943     def __init__(self, app):
 944         gtk.Dialog.__init__(self, 'New Output Channel', app.window)
 945         self.mixer = app.mixer
 946         self.app = app
 947         self.create_ui()
 948
 949         # TODO: disable mode for output channels as mono output channels may
 950         # not be correctly handled yet.
 951         self.mode_hbox.set_sensitive(False)
 952         self.stereo.set_active(True) # default to stereo
 953
 954         self.add_button(gtk.STOCK_CANCEL, gtk.RESPONSE_CANCEL)
 955         self.ok_button = self.add_button(gtk.STOCK_ADD, gtk.RESPONSE_OK)
 956         self.ok_button.set_sensitive(False)
 957         self.set_default_response(gtk.RESPONSE_OK);
 958
 959     def get_result(self):
 960         return {'name': self.entry_name.get_text(),
 961                 'stereo': self.stereo.get_active(),
 962                 'volume_cc': self.entry_volume_cc.get_text(),
 963                 'balance_cc': self.entry_balance_cc.get_text(),
 964                 'display_solo_buttons': self.display_solo_buttons.get_active(),
 965                }
 966
 967
 968 class ControlGroup(gtk.Alignment):
 969     def __init__(self, output_channel, input_channel):
 970         gtk.Alignment.__init__(self, 0.5, 0.5, 0, 0)
 971         self.output_channel = output_channel
 972         self.input_channel = input_channel
 973         self.app = input_channel.app
 974
 975         hbox = gtk.HBox()
 976         self.hbox = hbox
 977         self.add(hbox)
 978
 979         mute = gtk.ToggleButton()
 980         self.mute = mute
 981         mute.set_label("M")
 982         mute.connect("toggled", self.on_mute_toggled)
 983         hbox.pack_start(mute, False)
 984
 985         solo = gtk.ToggleButton()
 986         self.solo = solo
 987         solo.set_label("S")
 988         solo.connect("toggled", self.on_solo_toggled)
 989         if self.output_channel.display_solo_buttons:
 990             hbox.pack_start(solo, True)
 991
 992         mute.modify_bg(gtk.STATE_PRELIGHT, output_channel.color_tuple[0])
 993         mute.modify_bg(gtk.STATE_NORMAL, output_channel.color_tuple[1])
 994         mute.modify_bg(gtk.STATE_ACTIVE, output_channel.color_tuple[2])
 995         solo.modify_bg(gtk.STATE_PRELIGHT, output_channel.color_tuple[0])
 996         solo.modify_bg(gtk.STATE_NORMAL, output_channel.color_tuple[1])
 997         solo.modify_bg(gtk.STATE_ACTIVE, output_channel.color_tuple[2])
 998
 999     def update(self):
1000         if self.output_channel.display_solo_buttons:
1001             if not self.solo in self.hbox.get_children():
1002                 self.hbox.pack_start(self.solo, True)
1003                 self.solo.show()
1004         else:
1005             if self.solo in self.hbox.get_children():
1006                 self.hbox.remove(self.solo)
1007
1008     def on_mute_toggled(self, button):
1009         self.output_channel.channel.set_muted(self.input_channel.channel, button.get_active())
1010         self.app.update_monitor(self)
1011
1012     def on_solo_toggled(self, button):
1013         self.output_channel.channel.set_solo(self.input_channel.channel, button.get_active())
1014         self.app.update_monitor(self)
1015