gtk2_ardour/mixer_strip.cc

   1 /*
   2     Copyright (C) 2000-2006 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   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., 675 Mass Ave, Cambridge, MA 02139, USA.
  17 */
  18
  19 #include <cmath>
  20 #include <algorithm>
  21
  22 #include <sigc++/bind.h>
  23
  24 #include <pbd/convert.h>
  25 #include <pbd/enumwriter.h>
  26
  27 #include <gtkmm2ext/gtk_ui.h>
  28 #include <gtkmm2ext/utils.h>
  29 #include <gtkmm2ext/choice.h>
  30 #include <gtkmm2ext/stop_signal.h>
  31 #include <gtkmm2ext/doi.h>
  32 #include <gtkmm2ext/slider_controller.h>
  33 #include <gtkmm2ext/bindable_button.h>
  34
  35 #include <ardour/ardour.h>
  36 #include <ardour/session.h>
  37 #include <ardour/audioengine.h>
  38 #include <ardour/route.h>
  39 #include <ardour/audio_track.h>
  40 #include <ardour/audio_diskstream.h>
  41 #include <ardour/panner.h>
  42 #include <ardour/send.h>
  43 #include <ardour/processor.h>
  44 #include <ardour/profile.h>
  45 #include <ardour/ladspa_plugin.h>
  46 #include <ardour/auto_bundle.h>
  47 #include <ardour/user_bundle.h>
  48
  49 #include "ardour_ui.h"
  50 #include "ardour_dialog.h"
  51 #include "mixer_strip.h"
  52 #include "mixer_ui.h"
  53 #include "keyboard.h"
  54 #include "public_editor.h"
  55 #include "send_ui.h"
  56 #include "io_selector.h"
  57 #include "utils.h"
  58 #include "gui_thread.h"
  59
  60 #include "i18n.h"
  61
  62 using namespace sigc;
  63 using namespace ARDOUR;
  64 using namespace PBD;
  65 using namespace Gtk;
  66 using namespace Gtkmm2ext;
  67 using namespace std;
  68
  69 int MixerStrip::scrollbar_height = 0;
  70
  71 #ifdef VARISPEED_IN_MIXER_STRIP
  72 static void
  73 speed_printer (char buf[32], Gtk::Adjustment& adj, void* arg)
  74 {
  75         float val = adj.get_value ();
  76
  77         if (val == 1.0) {
  78                 strcpy (buf, "1");
  79         } else {
  80                 snprintf (buf, 32, "%.3f", val);
  81         }
  82 }
  83 #endif
  84
  85 MixerStrip::MixerStrip (Mixer_UI& mx, Session& sess, bool in_mixer)
  86         : AxisView(sess)
  87         , RouteUI (sess, _("Mute"), _("Solo"), _("Record"))
  88         ,_mixer(mx)
  89         , _mixer_owned (in_mixer)
  90         , pre_processor_box (PreFader, sess, mx.plugin_selector(), mx.selection(), in_mixer)
  91         , post_processor_box (PostFader, sess, mx.plugin_selector(), mx.selection(), in_mixer)
  92         , gpm (sess)
  93         , panners (sess)
  94         , button_table (3, 2)
  95         , middle_button_table (1, 2)
  96         , bottom_button_table (1, 2)
  97         , meter_point_label (_("pre"))
  98         , comment_button (_("Comments"))
  99         , speed_adjustment (1.0, 0.001, 4.0, 0.001, 0.1)
 100         , speed_spinner (&speed_adjustment, "MixerStripSpeedBase", true)
 101
 102 {
 103         init ();
 104 }
 105
 106 MixerStrip::MixerStrip (Mixer_UI& mx, Session& sess, boost::shared_ptr<Route> rt, bool in_mixer)
 107         : AxisView(sess)
 108         , RouteUI (sess, _("Mute"), _("Solo"), _("Record"))
 109         ,_mixer(mx)
 110         , _mixer_owned (in_mixer)
 111         , pre_processor_box (PreFader, sess, mx.plugin_selector(), mx.selection(), in_mixer)
 112         , post_processor_box (PostFader, sess, mx.plugin_selector(), mx.selection(), in_mixer)
 113         , gpm (sess)
 114         , panners (sess)
 115         , button_table (3, 2)
 116         , middle_button_table (1, 2)
 117         , bottom_button_table (1, 2)
 118         , meter_point_label (_("pre"))
 119         , comment_button (_("Comments"))
 120         , speed_adjustment (1.0, 0.001, 4.0, 0.001, 0.1)
 121         , speed_spinner (&speed_adjustment, "MixerStripSpeedBase", true)
 122
 123 {
 124         init ();
 125         set_route (rt);
 126 }
 127
 128 void
 129 MixerStrip::init ()
 130 {
 131         input_selector = 0;
 132         output_selector = 0;
 133         group_menu = 0;
 134         _marked_for_display = false;
 135         route_ops_menu = 0;
 136         ignore_comment_edit = false;
 137         ignore_toggle = false;
 138         ignore_speed_adjustment = false;
 139         comment_window = 0;
 140         comment_area = 0;
 141         _width_owner = 0;
 142
 143         width_button.add (*(manage (new Gtk::Image (::get_icon("strip_width")))));
 144         hide_button.add (*(manage (new Gtk::Image (::get_icon("hide")))));
 145
 146         input_label.set_text (_("Input"));
 147         ARDOUR_UI::instance()->set_tip (&input_button, _("Click to choose inputs"), "");
 148         input_button.add (input_label);
 149         input_button.set_name ("MixerIOButton");
 150         input_label.set_name ("MixerIOButtonLabel");
 151
 152         output_label.set_text (_("Output"));
 153         ARDOUR_UI::instance()->set_tip (&output_button, _("Click to choose outputs"), "");
 154         output_button.add (output_label);
 155         output_button.set_name ("MixerIOButton");
 156         output_label.set_name ("MixerIOButtonLabel");
 157
 158         ARDOUR_UI::instance()->set_tip (&meter_point_button, _("Select metering point"), "");
 159         meter_point_button.add (meter_point_label);
 160         meter_point_button.set_name ("MixerStripMeterPreButton");
 161         meter_point_label.set_name ("MixerStripMeterPreButton");
 162
 163         /* TRANSLATORS: this string should be longest of the strings
 164            used to describe meter points. In english, it's "input".
 165         */
 166         set_size_request_to_display_given_text (meter_point_button, _("tupni"), 5, 5);
 167
 168         bottom_button_table.attach (meter_point_button, 1, 2, 0, 1);
 169
 170         meter_point_button.signal_button_press_event().connect (mem_fun (gpm, &GainMeter::meter_press), false);
 171         /* XXX what is this meant to do? */
 172         //meter_point_button.signal_button_release_event().connect (mem_fun (gpm, &GainMeter::meter_release), false);
 173
 174         hide_button.set_events (hide_button.get_events() & ~(Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK));
 175
 176         mute_button->set_name ("MixerMuteButton");
 177         solo_button->set_name ("MixerSoloButton");
 178
 179         button_table.set_homogeneous (true);
 180         button_table.set_spacings (0);
 181
 182         button_table.attach (name_button, 0, 2, 0, 1);
 183         button_table.attach (input_button, 0, 2, 1, 2);
 184
 185         middle_button_table.set_homogeneous (true);
 186         middle_button_table.set_spacings (0);
 187         middle_button_table.attach (*mute_button, 0, 1, 0, 1);
 188         middle_button_table.attach (*solo_button, 1, 2, 0, 1);
 189
 190         bottom_button_table.set_col_spacings (0);
 191         bottom_button_table.set_homogeneous (true);
 192         bottom_button_table.attach (group_button, 0, 1, 0, 1);
 193
 194         name_button.add (name_label);
 195         name_button.set_name ("MixerNameButton");
 196         Gtkmm2ext::set_size_request_to_display_given_text (name_button, "longest label", 2, 2);
 197
 198         name_label.set_name ("MixerNameButtonLabel");
 199         ARDOUR_UI::instance()->set_tip (&group_button, _("Mix group"), "");
 200         group_button.add (group_label);
 201         group_button.set_name ("MixerGroupButton");
 202         group_label.set_name ("MixerGroupButtonLabel");
 203
 204         comment_button.set_name ("MixerCommentButton");
 205
 206         comment_button.signal_clicked().connect (mem_fun(*this, &MixerStrip::comment_button_clicked));
 207
 208         global_vpacker.set_border_width (0);
 209         global_vpacker.set_spacing (0);
 210
 211         VBox *whvbox = manage (new VBox);
 212
 213         width_button.set_name ("MixerWidthButton");
 214         hide_button.set_name ("MixerHideButton");
 215         top_event_box.set_name ("MixerTopEventBox");
 216
 217         width_button.signal_clicked().connect (mem_fun(*this, &MixerStrip::width_clicked));
 218         hide_button.signal_clicked().connect (mem_fun(*this, &MixerStrip::hide_clicked));
 219
 220         width_hide_box.pack_start (width_button, false, true);
 221         width_hide_box.pack_start (top_event_box, true, true);
 222         width_hide_box.pack_end (hide_button, false, true);
 223         Gtk::Alignment *gain_meter_alignment = Gtk::manage(new Gtk::Alignment());
 224         gain_meter_alignment->set_padding(0, 4, 0, 0);
 225         gain_meter_alignment->add(gpm);
 226
 227         whvbox->pack_start (width_hide_box, true, true);
 228
 229         global_vpacker.pack_start (*whvbox, Gtk::PACK_SHRINK);
 230         global_vpacker.pack_start (button_table,Gtk::PACK_SHRINK);
 231         global_vpacker.pack_start (pre_processor_box, true, true);
 232         global_vpacker.pack_start (middle_button_table,Gtk::PACK_SHRINK);
 233         global_vpacker.pack_start (*gain_meter_alignment,Gtk::PACK_SHRINK);
 234         global_vpacker.pack_start (bottom_button_table,Gtk::PACK_SHRINK);
 235         global_vpacker.pack_start (post_processor_box, true, true);
 236         if (!is_midi_track()) {
 237                 global_vpacker.pack_start (panners, Gtk::PACK_SHRINK);
 238         }
 239         global_vpacker.pack_start (output_button, Gtk::PACK_SHRINK);
 240         global_vpacker.pack_start (comment_button, Gtk::PACK_SHRINK);
 241
 242         global_frame.add (global_vpacker);
 243         global_frame.set_shadow_type (Gtk::SHADOW_IN);
 244         global_frame.set_name ("BaseFrame");
 245
 246         add (global_frame);
 247
 248         /* force setting of visible selected status */
 249
 250         _selected = true;
 251         set_selected (false);
 252
 253         _packed = false;
 254         _embedded = false;
 255
 256         _session.engine().Stopped.connect (mem_fun(*this, &MixerStrip::engine_stopped));
 257         _session.engine().Running.connect (mem_fun(*this, &MixerStrip::engine_running));
 258
 259         input_button.signal_button_press_event().connect (mem_fun(*this, &MixerStrip::input_press), false);
 260         output_button.signal_button_press_event().connect (mem_fun(*this, &MixerStrip::output_press), false);
 261
 262         solo_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::solo_press), false);
 263         solo_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::solo_release), false);
 264         mute_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::mute_press), false);
 265         mute_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::mute_release), false);
 266
 267         /* we don't need this if its not an audio track, but we don't know that yet and it doesn't
 268            hurt (much).
 269         */
 270
 271         rec_enable_button->set_name ("MixerRecordEnableButton");
 272         rec_enable_button->signal_button_press_event().connect (mem_fun(*this, &RouteUI::rec_enable_press), false);
 273         rec_enable_button->signal_button_release_event().connect (mem_fun(*this, &RouteUI::rec_enable_release));
 274
 275         name_button.signal_button_press_event().connect (mem_fun(*this, &MixerStrip::name_button_button_press), false);
 276         group_button.signal_button_press_event().connect (mem_fun(*this, &MixerStrip::select_mix_group), false);
 277
 278         _width = (Width) -1;
 279
 280         /* start off as a passthru strip. we'll correct this, if necessary,
 281            in update_diskstream_display().
 282         */
 283
 284         /* start off as a passthru strip. we'll correct this, if necessary,
 285            in update_diskstream_display().
 286         */
 287
 288         if (is_midi_track())
 289                 set_name ("MidiTrackStripBase");
 290         else
 291                 set_name ("AudioTrackStripBase");
 292
 293         add_events (Gdk::BUTTON_RELEASE_MASK);
 294 }
 295
 296 MixerStrip::~MixerStrip ()
 297 {
 298         GoingAway(); /* EMIT_SIGNAL */
 299
 300         if (input_selector) {
 301                 delete input_selector;
 302         }
 303
 304         if (output_selector) {
 305                 delete output_selector;
 306         }
 307 }
 308
 309 void
 310 MixerStrip::set_route (boost::shared_ptr<Route> rt)
 311 {
 312         if (rec_enable_button->get_parent()) {
 313                 button_table.remove (*rec_enable_button);
 314         }
 315
 316 #ifdef VARISPEED_IN_MIXER_STRIP
 317         if (speed_frame->get_parent()) {
 318                 button_table.remove (*speed_frame);
 319         }
 320 #endif
 321
 322         RouteUI::set_route (rt);
 323
 324         panners.set_io (rt);
 325         gpm.set_io (rt);
 326         pre_processor_box.set_route (rt);
 327         post_processor_box.set_route (rt);
 328
 329         if (set_color_from_route()) {
 330                 set_color (unique_random_color());
 331         }
 332
 333         if (_mixer_owned && (route()->is_master() || route()->is_control())) {
 334
 335                 if (scrollbar_height == 0) {
 336                         HScrollbar scrollbar;
 337                         Gtk::Requisition requisition(scrollbar.size_request ());
 338                         scrollbar_height = requisition.height;
 339                 }
 340
 341                 EventBox* spacer = manage (new EventBox);
 342                 spacer->set_size_request (-1, scrollbar_height);
 343                 global_vpacker.pack_start (*spacer, false, false);
 344         }
 345
 346         if (is_audio_track()) {
 347
 348                 boost::shared_ptr<AudioTrack> at = audio_track();
 349
 350                 connections.push_back (at->FreezeChange.connect (mem_fun(*this, &MixerStrip::map_frozen)));
 351
 352 #ifdef VARISPEED_IN_MIXER_STRIP
 353                 speed_adjustment.signal_value_changed().connect (mem_fun(*this, &MixerStrip::speed_adjustment_changed));
 354
 355                 speed_frame.set_name ("BaseFrame");
 356                 speed_frame.set_shadow_type (Gtk::SHADOW_IN);
 357                 speed_frame.add (speed_spinner);
 358
 359                 speed_spinner.set_print_func (speed_printer, 0);
 360
 361                 ARDOUR_UI::instance()->tooltips().set_tip (speed_spinner, _("Varispeed"));
 362
 363                 button_table.attach (speed_frame, 0, 2, 5, 6);
 364 #endif /* VARISPEED_IN_MIXER_STRIP */
 365
 366                 button_table.attach (*rec_enable_button, 0, 2, 2, 3);
 367         }
 368
 369         if (_route->phase_invert()) {
 370                 name_label.set_text (X_("Ø ") + name_label.get_text());
 371         } else {
 372                 name_label.set_text (_route->name());
 373         }
 374
 375         switch (_route->meter_point()) {
 376         case MeterInput:
 377                 meter_point_label.set_text (_("input"));
 378                 break;
 379
 380         case MeterPreFader:
 381                 meter_point_label.set_text (_("pre"));
 382                 break;
 383
 384         case MeterPostFader:
 385                 meter_point_label.set_text (_("post"));
 386                 break;
 387         }
 388
 389         ARDOUR_UI::instance()->tooltips().set_tip (comment_button, _route->comment().empty() ?
 390                                                    _("Click to Add/Edit Comments"):
 391                                                    _route->comment());
 392
 393         connections.push_back (_route->meter_change.connect (mem_fun(*this, &MixerStrip::meter_changed)));
 394         connections.push_back (_route->input_changed.connect (mem_fun(*this, &MixerStrip::input_changed)));
 395         connections.push_back (_route->output_changed.connect (mem_fun(*this, &MixerStrip::output_changed)));
 396         connections.push_back (_route->mute_changed.connect (mem_fun(*this, &RouteUI::mute_changed)));
 397         connections.push_back (_route->solo_changed.connect (mem_fun(*this, &RouteUI::solo_changed)));
 398         connections.push_back (_route->solo_safe_changed.connect (mem_fun(*this, &RouteUI::solo_changed)));
 399         connections.push_back (_route->mix_group_changed.connect (mem_fun(*this, &MixerStrip::mix_group_changed)));
 400         connections.push_back (_route->panner().Changed.connect (mem_fun(*this, &MixerStrip::connect_to_pan)));
 401
 402         if (is_audio_track()) {
 403                 connections.push_back (audio_track()->DiskstreamChanged.connect (mem_fun(*this, &MixerStrip::diskstream_changed)));
 404                 connections.push_back (get_diskstream()->SpeedChanged.connect (mem_fun(*this, &MixerStrip::speed_changed)));
 405         }
 406
 407         connections.push_back (_route->NameChanged.connect (mem_fun(*this, &RouteUI::name_changed)));
 408         connections.push_back (_route->comment_changed.connect (mem_fun(*this, &MixerStrip::comment_changed)));
 409         connections.push_back (_route->gui_changed.connect (mem_fun(*this, &MixerStrip::route_gui_changed)));
 410
 411         set_stuff_from_route ();
 412
 413         /* now force an update of all the various elements */
 414
 415         pre_processor_box.update();
 416         post_processor_box.update();
 417         mute_changed (0);
 418         solo_changed (0);
 419         name_changed ();
 420         comment_changed (0);
 421         mix_group_changed (0);
 422
 423         connect_to_pan ();
 424
 425         panners.setup_pan ();
 426
 427         if (is_audio_track()) {
 428                 speed_changed ();
 429         }
 430
 431         update_diskstream_display ();
 432         update_input_display ();
 433         update_output_display ();
 434
 435         add_events (Gdk::BUTTON_RELEASE_MASK);
 436
 437         pre_processor_box.show();
 438
 439         if (!route()->is_master() && !route()->is_control()) {
 440                 /* we don't allow master or control routes to be hidden */
 441                 hide_button.show();
 442         }
 443         width_button.show();
 444         width_hide_box.show();
 445         global_frame.show();
 446         global_vpacker.show();
 447         button_table.show();
 448         middle_button_table.show();
 449         bottom_button_table.show();
 450         gain_unit_button.show();
 451         gain_unit_label.show();
 452         meter_point_button.show();
 453         meter_point_label.show();
 454         diskstream_button.show();
 455         diskstream_label.show();
 456         input_button.show();
 457         input_label.show();
 458         output_button.show();
 459         output_label.show();
 460         name_label.show();
 461         name_button.show();
 462         comment_button.show();
 463         group_button.show();
 464         group_label.show();
 465         speed_spinner.show();
 466         speed_label.show();
 467         speed_frame.show();
 468
 469         show();
 470 }
 471
 472 void
 473 MixerStrip::set_stuff_from_route ()
 474 {
 475         XMLProperty *prop;
 476
 477         ensure_xml_node ();
 478
 479         /* if width is not set, it will be set by the MixerUI or editor */
 480
 481         if ((prop = xml_node->property ("strip-width")) != 0) {
 482                 set_width (Width (string_2_enum (prop->value(), _width)), this);
 483         }
 484
 485         if ((prop = xml_node->property ("shown-mixer")) != 0) {
 486                 if (prop->value() == "no") {
 487                         _marked_for_display = false;
 488                 } else {
 489                         _marked_for_display = true;
 490                 }
 491         } else {
 492                 /* backwards compatibility */
 493                 _marked_for_display = true;
 494         }
 495 }
 496
 497 void
 498 MixerStrip::set_width (Width w, void* owner)
 499 {
 500         /* always set the gpm width again, things may be hidden */
 501
 502         gpm.set_width (w);
 503         panners.set_width (w);
 504         pre_processor_box.set_width (w);
 505         post_processor_box.set_width (w);
 506
 507         boost::shared_ptr<AutomationList> gain_automation = _route->gain_control()->alist();
 508
 509         _width_owner = owner;
 510
 511         ensure_xml_node ();
 512
 513         _width = w;
 514
 515         if (_width_owner == this) {
 516                 xml_node->add_property ("strip-width", enum_2_string (_width));
 517         }
 518
 519         switch (w) {
 520         case Wide:
 521                 set_size_request (-1, -1);
 522
 523                 if (rec_enable_button)  {
 524                         ((Gtk::Label*)rec_enable_button->get_child())->set_text (_("record"));
 525                 }
 526                 ((Gtk::Label*)mute_button->get_child())->set_text  (_("Mute"));
 527                 ((Gtk::Label*)solo_button->get_child())->set_text (_("Solo"));
 528
 529                 if (_route->comment() == "") {
 530                        comment_button.unset_bg (STATE_NORMAL);
 531                        ((Gtk::Label*)comment_button.get_child())->set_text (_("comments"));
 532                 } else {
 533                        comment_button.modify_bg (STATE_NORMAL, color());
 534                        ((Gtk::Label*)comment_button.get_child())->set_text (_("*comments*"));
 535                 }
 536
 537                 ((Gtk::Label*)gpm.gain_automation_style_button.get_child())->set_text (gpm.astyle_string(gain_automation->automation_style()));
 538                 ((Gtk::Label*)gpm.gain_automation_state_button.get_child())->set_text (gpm.astate_string(gain_automation->automation_state()));
 539                 ((Gtk::Label*)panners.pan_automation_style_button.get_child())->set_text (panners.astyle_string(_route->panner().automation_style()));
 540                 ((Gtk::Label*)panners.pan_automation_state_button.get_child())->set_text (panners.astate_string(_route->panner().automation_state()));
 541                 Gtkmm2ext::set_size_request_to_display_given_text (name_button, "long", 2, 2);
 542                 break;
 543
 544         case Narrow:
 545                 if (rec_enable_button) {
 546                         ((Gtk::Label*)rec_enable_button->get_child())->set_text (_("Rec"));
 547                 }
 548                 ((Gtk::Label*)mute_button->get_child())->set_text (_("M"));
 549                 ((Gtk::Label*)solo_button->get_child())->set_text (_("S"));
 550
 551                 if (_route->comment() == "") {
 552                        comment_button.unset_bg (STATE_NORMAL);
 553                        ((Gtk::Label*)comment_button.get_child())->set_text (_("Cmt"));
 554                 } else {
 555                        comment_button.modify_bg (STATE_NORMAL, color());
 556                        ((Gtk::Label*)comment_button.get_child())->set_text (_("*Cmt*"));
 557                 }
 558
 559                 ((Gtk::Label*)gpm.gain_automation_style_button.get_child())->set_text (gpm.short_astyle_string(gain_automation->automation_style()));
 560                 ((Gtk::Label*)gpm.gain_automation_state_button.get_child())->set_text (gpm.short_astate_string(gain_automation->automation_state()));
 561                 ((Gtk::Label*)panners.pan_automation_style_button.get_child())->set_text (panners.short_astyle_string(_route->panner().automation_style()));
 562                 ((Gtk::Label*)panners.pan_automation_state_button.get_child())->set_text (panners.short_astate_string(_route->panner().automation_state()));
 563                 Gtkmm2ext::set_size_request_to_display_given_text (name_button, "longest label", 2, 2);
 564                 set_size_request (max (50, gpm.get_gm_width()), -1);
 565                 break;
 566         }
 567
 568         update_input_display ();
 569         update_output_display ();
 570         mix_group_changed (0);
 571         name_changed ();
 572
 573 }
 574
 575 void
 576 MixerStrip::set_packed (bool yn)
 577 {
 578         _packed = yn;
 579
 580         ensure_xml_node ();
 581
 582         if (_packed) {
 583                 xml_node->add_property ("shown-mixer", "yes");
 584         } else {
 585                 xml_node->add_property ("shown-mixer", "no");
 586         }
 587 }
 588
 589
 590 gint
 591 MixerStrip::output_press (GdkEventButton *ev)
 592 {
 593         using namespace Menu_Helpers;
 594         if (!_session.engine().connected()) {
 595                 MessageDialog msg (_("Not connected to JACK - no I/O changes are possible"));
 596                 msg.run ();
 597                 return true;
 598         }
 599
 600         MenuList& citems = output_menu.items();
 601         switch (ev->button) {
 602
 603         case 1:
 604         {
 605                 output_menu.set_name ("ArdourContextMenu");
 606                 citems.clear();
 607
 608                 citems.push_back (MenuElem (_("Edit"), mem_fun(*this, &MixerStrip::edit_output_configuration)));
 609                 citems.push_back (SeparatorElem());
 610                 citems.push_back (MenuElem (_("Disconnect"), mem_fun (*(static_cast<RouteUI*>(this)), &RouteUI::disconnect_output)));
 611                 citems.push_back (SeparatorElem());
 612
 613                 std::vector<boost::shared_ptr<Bundle> > current = _route->bundles_connected_to_outputs ();
 614
 615                 _session.foreach_bundle (
 616                         bind (mem_fun (*this, &MixerStrip::add_bundle_to_output_menu), current)
 617                         );
 618
 619                 output_menu.popup (1, ev->time);
 620                 break;
 621         }
 622
 623         default:
 624                 break;
 625         }
 626         return TRUE;
 627 }
 628
 629 void
 630 MixerStrip::edit_output_configuration ()
 631 {
 632         if (output_selector == 0) {
 633                 output_selector = new IOSelectorWindow (_session, _route, false);
 634         }
 635
 636         if (output_selector->is_visible()) {
 637                 output_selector->get_toplevel()->get_window()->raise();
 638         } else {
 639                 output_selector->present ();
 640         }
 641 }
 642
 643 void
 644 MixerStrip::edit_input_configuration ()
 645 {
 646         if (input_selector == 0) {
 647                 input_selector = new IOSelectorWindow (_session, _route, true);
 648         }
 649
 650         if (input_selector->is_visible()) {
 651                 input_selector->get_toplevel()->get_window()->raise();
 652         } else {
 653                 input_selector->present ();
 654         }
 655 }
 656
 657 gint
 658 MixerStrip::input_press (GdkEventButton *ev)
 659 {
 660         using namespace Menu_Helpers;
 661
 662         MenuList& citems = input_menu.items();
 663         input_menu.set_name ("ArdourContextMenu");
 664         citems.clear();
 665
 666         if (!_session.engine().connected()) {
 667                 MessageDialog msg (_("Not connected to JACK - no I/O changes are possible"));
 668                 msg.run ();
 669                 return true;
 670         }
 671
 672         switch (ev->button) {
 673
 674         case 1:
 675         {
 676                 citems.push_back (MenuElem (_("Edit"), mem_fun(*this, &MixerStrip::edit_input_configuration)));
 677                 citems.push_back (SeparatorElem());
 678                 citems.push_back (MenuElem (_("Disconnect"), mem_fun (*(static_cast<RouteUI*>(this)), &RouteUI::disconnect_input)));
 679                 citems.push_back (SeparatorElem());
 680
 681                 std::vector<boost::shared_ptr<Bundle> > current = _route->bundles_connected_to_inputs ();
 682
 683                 _session.foreach_bundle (
 684                         bind (mem_fun (*this, &MixerStrip::add_bundle_to_input_menu), current)
 685                         );
 686
 687                 input_menu.popup (1, ev->time);
 688                 break;
 689         }
 690         default:
 691                 break;
 692         }
 693         return TRUE;
 694 }
 695
 696 void
 697 MixerStrip::bundle_input_chosen (boost::shared_ptr<ARDOUR::Bundle> c)
 698 {
 699         if (!ignore_toggle) {
 700
 701                 try {
 702                         _route->connect_input_ports_to_bundle (c, this);
 703                 }
 704
 705                 catch (AudioEngine::PortRegistrationFailure& err) {
 706                         error << _("could not register new ports required for that bundle")
 707                               << endmsg;
 708                 }
 709         }
 710 }
 711
 712 void
 713 MixerStrip::bundle_output_chosen (boost::shared_ptr<ARDOUR::Bundle> c)
 714 {
 715         if (!ignore_toggle) {
 716
 717                 try {
 718                         _route->connect_output_ports_to_bundle (c, this);
 719                 }
 720
 721                 catch (AudioEngine::PortRegistrationFailure& err) {
 722                         error << _("could not register new ports required for that bundle")
 723                               << endmsg;
 724                 }
 725         }
 726 }
 727
 728 void
 729 MixerStrip::add_bundle_to_input_menu (boost::shared_ptr<Bundle> b, std::vector<boost::shared_ptr<Bundle> > const & current)
 730 {
 731         using namespace Menu_Helpers;
 732
 733         /* the input menu needs to contain only output bundles (that we
 734            can connect inputs to */
 735         if (b->ports_are_outputs() == false) {
 736                 return;
 737         }
 738
 739         MenuList& citems = input_menu.items();
 740
 741         if (b->nchannels() == _route->n_inputs()) {
 742
 743                 citems.push_back (CheckMenuElem (b->name(), bind (mem_fun(*this, &MixerStrip::bundle_input_chosen), b)));
 744
 745                 if (std::find (current.begin(), current.end(), b) != current.end()) {
 746                         ignore_toggle = true;
 747                         dynamic_cast<CheckMenuItem *> (&citems.back())->set_active (true);
 748                         ignore_toggle = false;
 749                 }
 750         }
 751 }
 752
 753 void
 754 MixerStrip::add_bundle_to_output_menu (boost::shared_ptr<Bundle> b, std::vector<boost::shared_ptr<Bundle> > const & current)
 755 {
 756         using namespace Menu_Helpers;
 757
 758         /* the output menu needs to contain only input bundles (that we
 759            can connect outputs to */
 760         if (b->ports_are_inputs() == false) {
 761                 return;
 762         }
 763
 764         if (b->nchannels() == _route->n_outputs()) {
 765
 766                 MenuList& citems = output_menu.items();
 767                 citems.push_back (CheckMenuElem (b->name(), bind (mem_fun(*this, &MixerStrip::bundle_output_chosen), b)));
 768
 769                 if (std::find (current.begin(), current.end(), b) != current.end()) {
 770                         ignore_toggle = true;
 771                         dynamic_cast<CheckMenuItem *> (&citems.back())->set_active (true);
 772                         ignore_toggle = false;
 773                 }
 774         }
 775 }
 776
 777 void
 778 MixerStrip::update_diskstream_display ()
 779 {
 780         if (is_track()) {
 781
 782                 if (input_selector) {
 783                         input_selector->hide_all ();
 784                 }
 785
 786                 show_route_color ();
 787
 788         } else {
 789
 790                 show_passthru_color ();
 791         }
 792 }
 793
 794 void
 795 MixerStrip::connect_to_pan ()
 796 {
 797         ENSURE_GUI_THREAD(mem_fun(*this, &MixerStrip::connect_to_pan));
 798
 799         panstate_connection.disconnect ();
 800         panstyle_connection.disconnect ();
 801
 802                 boost::shared_ptr<ARDOUR::AutomationControl> pan_control
 803                         = boost::dynamic_pointer_cast<ARDOUR::AutomationControl>(
 804                                 _route->panner().data().control(Evoral::Parameter( PanAutomation ) ));
 805
 806         if (pan_control) {
 807                 panstate_connection = pan_control->alist()->automation_state_changed.connect (mem_fun(panners, &PannerUI::pan_automation_state_changed));
 808                 panstyle_connection = pan_control->alist()->automation_style_changed.connect (mem_fun(panners, &PannerUI::pan_automation_style_changed));
 809         }
 810
 811         panners.pan_changed (this);
 812 }
 813
 814 void
 815 MixerStrip::update_input_display ()
 816 {
 817         std::vector<boost::shared_ptr<ARDOUR::Bundle> > c = _route->bundles_connected_to_inputs ();
 818
 819         /* XXX: how do we represent >1 connected bundle? */
 820         if (c.empty() == false) {
 821                 input_label.set_text (c[0]->name());
 822         } else {
 823                 switch (_width) {
 824                 case Wide:
 825                         input_label.set_text (_(" Input"));
 826                         break;
 827                 case Narrow:
 828                         input_label.set_text (_("I"));
 829                         break;
 830                 }
 831         }
 832         panners.setup_pan ();
 833 }
 834
 835 void
 836 MixerStrip::update_output_display ()
 837 {
 838         std::vector<boost::shared_ptr<ARDOUR::Bundle> > c = _route->bundles_connected_to_outputs ();
 839
 840         /* XXX: how do we represent >1 connected bundle? */
 841         if (c.empty() == false) {
 842                 output_label.set_text (c[0]->name());
 843         } else {
 844                 switch (_width) {
 845                 case Wide:
 846                         output_label.set_text (_("Output"));
 847                         break;
 848                 case Narrow:
 849                         output_label.set_text (_("O"));
 850                         break;
 851                 }
 852         }
 853
 854         gpm.setup_meters ();
 855         panners.setup_pan ();
 856 }
 857
 858 void
 859 MixerStrip::fast_update ()
 860 {
 861         gpm.update_meters ();
 862 }
 863
 864 void
 865 MixerStrip::diskstream_changed ()
 866 {
 867         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &MixerStrip::update_diskstream_display));
 868 }
 869
 870 void
 871 MixerStrip::input_changed (IOChange change, void *src)
 872 {
 873         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &MixerStrip::update_input_display));
 874         set_width(_width, this);
 875 }
 876
 877 void
 878 MixerStrip::output_changed (IOChange change, void *src)
 879 {
 880         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &MixerStrip::update_output_display));
 881         set_width(_width, this);
 882 }
 883
 884
 885 void
 886 MixerStrip::comment_editor_done_editing()
 887 {
 888         string str =  comment_area->get_buffer()->get_text();
 889         if (_route->comment() != str) {
 890                 _route->set_comment (str, this);
 891
 892                 switch (_width) {
 893
 894                 case Wide:
 895                         if (! str.empty()) {
 896                                 comment_button.modify_bg (STATE_NORMAL, color());
 897                                 ((Gtk::Label*)comment_button.get_child())->set_text (_("*Comments*"));
 898                         } else {
 899                                 comment_button.unset_bg (STATE_NORMAL);
 900                                 ((Gtk::Label*)comment_button.get_child())->set_text (_("Comments"));
 901                         }
 902                         break;
 903
 904                 case Narrow:
 905                         if (! str.empty()) {
 906                                 comment_button.modify_bg (STATE_NORMAL, color());
 907                                 ((Gtk::Label*)comment_button.get_child())->set_text (_("*Cmt*"));
 908                         } else {
 909                                 comment_button.unset_bg (STATE_NORMAL);
 910                                 ((Gtk::Label*)comment_button.get_child())->set_text (_("Cmt"));
 911                         }
 912                         break;
 913                 }
 914
 915                 ARDOUR_UI::instance()->tooltips().set_tip (comment_button,
 916                                 str.empty() ? _("Click to Add/Edit Comments") : str);
 917         }
 918
 919 }
 920
 921 void
 922 MixerStrip::comment_button_clicked ()
 923 {
 924         if (comment_window == 0) {
 925                 setup_comment_editor ();
 926         }
 927
 928     int x, y, cw_width, cw_height;
 929
 930         if (comment_window->is_visible()) {
 931                 comment_window->hide ();
 932                 return;
 933         }
 934
 935         comment_window->get_size (cw_width, cw_height);
 936         comment_window->get_position(x, y);
 937         comment_window->move(x, y - (cw_height / 2) - 45);
 938         /*
 939            half the dialog height minus the comments button height
 940            with some window decoration fudge thrown in.
 941         */
 942
 943         comment_window->show();
 944         comment_window->present();
 945 }
 946
 947 void
 948 MixerStrip::setup_comment_editor ()
 949 {
 950         string title;
 951         title = _route->name();
 952         title += _(": comment editor");
 953
 954         comment_window = new ArdourDialog (title, false);
 955         comment_window->set_position (Gtk::WIN_POS_MOUSE);
 956         comment_window->set_skip_taskbar_hint (true);
 957         comment_window->signal_hide().connect (mem_fun(*this, &MixerStrip::comment_editor_done_editing));
 958
 959         comment_area = manage (new TextView());
 960         comment_area->set_name ("MixerTrackCommentArea");
 961         comment_area->set_size_request (110, 178);
 962         comment_area->set_wrap_mode (WRAP_WORD);
 963         comment_area->set_editable (true);
 964         comment_area->get_buffer()->set_text (_route->comment());
 965         comment_area->show ();
 966
 967         comment_window->get_vbox()->pack_start (*comment_area);
 968         comment_window->get_action_area()->hide();
 969 }
 970
 971 void
 972 MixerStrip::comment_changed (void *src)
 973 {
 974         ENSURE_GUI_THREAD(bind (mem_fun(*this, &MixerStrip::comment_changed), src));
 975
 976         if (src != this) {
 977                 ignore_comment_edit = true;
 978                 if (comment_area) {
 979                         comment_area->get_buffer()->set_text (_route->comment());
 980                 }
 981                 ignore_comment_edit = false;
 982         }
 983 }
 984
 985 void
 986 MixerStrip::set_mix_group (RouteGroup *rg)
 987 {
 988         _route->set_mix_group (rg, this);
 989 }
 990
 991 void
 992 MixerStrip::add_mix_group_to_menu (RouteGroup *rg, RadioMenuItem::Group* group)
 993 {
 994         using namespace Menu_Helpers;
 995
 996         MenuList& items = group_menu->items();
 997
 998         items.push_back (RadioMenuElem (*group, rg->name(), bind (mem_fun(*this, &MixerStrip::set_mix_group), rg)));
 999
1000         if (_route->mix_group() == rg) {
1001                 static_cast<RadioMenuItem*>(&items.back())->set_active ();
1002         }
1003 }
1004
1005 bool
1006 MixerStrip::select_mix_group (GdkEventButton *ev)
1007 {
1008         using namespace Menu_Helpers;
1009
1010         if (group_menu == 0) {
1011                 group_menu = new Menu;
1012         }
1013         group_menu->set_name ("ArdourContextMenu");
1014         MenuList& items = group_menu->items();
1015         RadioMenuItem::Group group;
1016
1017         switch (ev->button) {
1018         case 1:
1019
1020                 items.clear ();
1021                 items.push_back (RadioMenuElem (group, _("No group"), bind (mem_fun(*this, &MixerStrip::set_mix_group), (RouteGroup *) 0)));
1022
1023                 _session.foreach_mix_group (bind (mem_fun (*this, &MixerStrip::add_mix_group_to_menu), &group));
1024
1025                 group_menu->popup (1, ev->time);
1026                 break;
1027
1028         default:
1029                 break;
1030         }
1031
1032         return true;
1033 }
1034
1035 void
1036 MixerStrip::mix_group_changed (void *ignored)
1037 {
1038         ENSURE_GUI_THREAD(bind (mem_fun(*this, &MixerStrip::mix_group_changed), ignored));
1039
1040         RouteGroup *rg = _route->mix_group();
1041
1042         if (rg) {
1043                 group_label.set_text (rg->name());
1044         } else {
1045                 switch (_width) {
1046                 case Wide:
1047                         group_label.set_text (_("Grp"));
1048                         break;
1049                 case Narrow:
1050                         group_label.set_text (_("~G"));
1051                         break;
1052                 }
1053         }
1054 }
1055
1056
1057 void
1058 MixerStrip::route_gui_changed (string what_changed, void* ignored)
1059 {
1060         ENSURE_GUI_THREAD(bind (mem_fun(*this, &MixerStrip::route_gui_changed), what_changed, ignored));
1061
1062         if (what_changed == "color") {
1063                 if (set_color_from_route () == 0) {
1064                         show_route_color ();
1065                 }
1066         }
1067 }
1068
1069 void
1070 MixerStrip::show_route_color ()
1071 {
1072         name_button.modify_bg (STATE_NORMAL, color());
1073         top_event_box.modify_bg (STATE_NORMAL, color());
1074         route_active_changed ();
1075 }
1076
1077 void
1078 MixerStrip::show_passthru_color ()
1079 {
1080         route_active_changed ();
1081 }
1082
1083 void
1084 MixerStrip::build_route_ops_menu ()
1085 {
1086         using namespace Menu_Helpers;
1087         route_ops_menu = manage (new Menu);
1088         route_ops_menu->set_name ("ArdourContextMenu");
1089
1090         MenuList& items = route_ops_menu->items();
1091
1092         items.push_back (MenuElem (_("Rename"), mem_fun(*this, &RouteUI::route_rename)));
1093         items.push_back (SeparatorElem());
1094         items.push_back (CheckMenuElem (_("Active"), mem_fun (*this, &RouteUI::toggle_route_active)));
1095         route_active_menu_item = dynamic_cast<CheckMenuItem *> (&items.back());
1096         route_active_menu_item->set_active (_route->active());
1097
1098         items.push_back (SeparatorElem());
1099
1100         items.push_back (MenuElem (_("Adjust latency"), mem_fun (*this, &RouteUI::adjust_latency)));
1101
1102         items.push_back (SeparatorElem());
1103         items.push_back (CheckMenuElem (_("Invert Polarity"), mem_fun (*this, &RouteUI::toggle_polarity)));
1104         polarity_menu_item = dynamic_cast<CheckMenuItem *> (&items.back());
1105         polarity_menu_item->set_active (_route->phase_invert());
1106         items.push_back (CheckMenuElem (_("Protect against denormals"), mem_fun (*this, &RouteUI::toggle_denormal_protection)));
1107         denormal_menu_item = dynamic_cast<CheckMenuItem *> (&items.back());
1108         denormal_menu_item->set_active (_route->denormal_protection());
1109
1110         build_remote_control_menu ();
1111
1112         items.push_back (SeparatorElem());
1113         if (!Profile->get_sae()) {
1114               items.push_back (MenuElem (_("Remote Control ID"), *remote_control_menu));
1115         }
1116
1117         items.push_back (SeparatorElem());
1118         items.push_back (MenuElem (_("Remove"), mem_fun(*this, &RouteUI::remove_this_route)));
1119 }
1120
1121 gint
1122 MixerStrip::name_button_button_press (GdkEventButton* ev)
1123 {
1124         if (ev->button == 1) {
1125                 list_route_operations ();
1126
1127                 Menu_Helpers::MenuList& items = route_ops_menu->items();
1128                 /* do not allow rename if the track is record-enabled */
1129                 static_cast<MenuItem*> (&items.front())->set_sensitive (!_route->record_enabled());
1130
1131                 route_ops_menu->popup (1, ev->time);
1132         }
1133         return FALSE;
1134 }
1135
1136 void
1137 MixerStrip::list_route_operations ()
1138 {
1139         if (route_ops_menu == 0) {
1140                 build_route_ops_menu ();
1141         }
1142
1143         refresh_remote_control_menu();
1144 }
1145
1146
1147 void
1148 MixerStrip::speed_adjustment_changed ()
1149 {
1150         /* since there is a usable speed adjustment, there has to be a diskstream */
1151         if (!ignore_speed_adjustment) {
1152                 get_diskstream()->set_speed (speed_adjustment.get_value());
1153         }
1154 }
1155
1156 void
1157 MixerStrip::speed_changed ()
1158 {
1159         Gtkmm2ext::UI::instance()->call_slot (mem_fun(*this, &MixerStrip::update_speed_display));
1160 }
1161
1162 void
1163 MixerStrip::update_speed_display ()
1164 {
1165         float val;
1166
1167         val = get_diskstream()->speed();
1168
1169         if (val != 1.0) {
1170                 speed_spinner.set_name ("MixerStripSpeedBaseNotOne");
1171         } else {
1172                 speed_spinner.set_name ("MixerStripSpeedBase");
1173         }
1174
1175         if (speed_adjustment.get_value() != val) {
1176                 ignore_speed_adjustment = true;
1177                 speed_adjustment.set_value (val);
1178                 ignore_speed_adjustment = false;
1179         }
1180 }
1181
1182
1183 void
1184 MixerStrip::set_selected (bool yn)
1185 {
1186         AxisView::set_selected (yn);
1187         if (_selected) {
1188                 global_frame.set_shadow_type (Gtk::SHADOW_ETCHED_OUT);
1189                 global_frame.set_name ("MixerStripSelectedFrame");
1190         } else {
1191                 global_frame.set_shadow_type (Gtk::SHADOW_IN);
1192                 global_frame.set_name ("MixerStripFrame");
1193         }
1194         global_frame.queue_draw ();
1195 }
1196
1197 void
1198 MixerStrip::name_changed ()
1199 {
1200         switch (_width) {
1201         case Wide:
1202                 RouteUI::name_changed ();
1203                 break;
1204         case Narrow:
1205                 name_label.set_text (PBD::short_version (_route->name(), 5));
1206                 break;
1207         }
1208         if (_route->phase_invert()) {
1209                 name_label.set_text (X_("Ø ") + name_label.get_text());
1210         }
1211 }
1212
1213 void
1214 MixerStrip::width_clicked ()
1215 {
1216         switch (_width) {
1217         case Wide:
1218                 set_width (Narrow, this);
1219                 break;
1220         case Narrow:
1221                 set_width (Wide, this);
1222                 break;
1223         }
1224 }
1225
1226 void
1227 MixerStrip::hide_clicked ()
1228 {
1229     // LAME fix to reset the button status for when it is redisplayed (part 1)
1230     hide_button.set_sensitive(false);
1231
1232         if (_embedded) {
1233                  Hiding(); /* EMIT_SIGNAL */
1234         } else {
1235                 _mixer.hide_strip (this);
1236         }
1237
1238     // (part 2)
1239         hide_button.set_sensitive(true);
1240 }
1241
1242 void
1243 MixerStrip::set_embedded (bool yn)
1244 {
1245         _embedded = yn;
1246 }
1247
1248 void
1249 MixerStrip::map_frozen ()
1250 {
1251         ENSURE_GUI_THREAD (mem_fun(*this, &MixerStrip::map_frozen));
1252
1253         boost::shared_ptr<AudioTrack> at = audio_track();
1254
1255         if (at) {
1256                 switch (at->freeze_state()) {
1257                 case AudioTrack::Frozen:
1258                         pre_processor_box.set_sensitive (false);
1259                         post_processor_box.set_sensitive (false);
1260                         speed_spinner.set_sensitive (false);
1261                         break;
1262                 default:
1263                         pre_processor_box.set_sensitive (true);
1264                         post_processor_box.set_sensitive (true);
1265                         speed_spinner.set_sensitive (true);
1266                         // XXX need some way, maybe, to retoggle redirect editors
1267                         break;
1268                 }
1269         }
1270
1271         hide_redirect_editors ();
1272 }
1273
1274 void
1275 MixerStrip::hide_redirect_editors ()
1276 {
1277         _route->foreach_processor (this, &MixerStrip::hide_processor_editor);
1278 }
1279
1280 void
1281 MixerStrip::hide_processor_editor (boost::shared_ptr<Processor> processor)
1282 {
1283         void* gui = processor->get_gui ();
1284
1285         if (gui) {
1286                 static_cast<Gtk::Widget*>(gui)->hide ();
1287         }
1288 }
1289
1290 void
1291 MixerStrip::route_active_changed ()
1292 {
1293         RouteUI::route_active_changed ();
1294
1295         if (is_midi_track()) {
1296                 if (_route->active()) {
1297                         set_name ("MidiTrackStripBase");
1298                         gpm.set_meter_strip_name ("MidiTrackStripBase");
1299                 } else {
1300                         set_name ("MidiTrackStripBaseInactive");
1301                         gpm.set_meter_strip_name ("MidiTrackStripBaseInactive");
1302                 }
1303                 gpm.set_fader_name ("MidiTrackFader");
1304         } else if (is_audio_track()) {
1305                 if (_route->active()) {
1306                         set_name ("AudioTrackStripBase");
1307                         gpm.set_meter_strip_name ("AudioTrackMetrics");
1308                 } else {
1309                         set_name ("AudioTrackStripBaseInactive");
1310                         gpm.set_meter_strip_name ("AudioTrackMetricsInactive");
1311                 }
1312                 gpm.set_fader_name ("AudioTrackFader");
1313         } else {
1314                 if (_route->active()) {
1315                         set_name ("AudioBusStripBase");
1316                         gpm.set_meter_strip_name ("AudioBusMetrics");
1317                 } else {
1318                         set_name ("AudioBusStripBaseInactive");
1319                         gpm.set_meter_strip_name ("AudioBusMetricsInactive");
1320                 }
1321                 gpm.set_fader_name ("AudioBusFader");
1322
1323                 /* (no MIDI busses yet) */
1324         }
1325 }
1326
1327 RouteGroup*
1328 MixerStrip::mix_group() const
1329 {
1330         return _route->mix_group();
1331 }
1332
1333 void
1334 MixerStrip::engine_stopped ()
1335 {
1336 }
1337
1338 void
1339 MixerStrip::engine_running ()
1340 {
1341 }
1342
1343 void
1344 MixerStrip::meter_changed (void *src)
1345 {
1346
1347         ENSURE_GUI_THREAD (bind (mem_fun(*this, &MixerStrip::meter_changed), src));
1348
1349         switch (_route->meter_point()) {
1350         case MeterInput:
1351                 meter_point_label.set_text (_("input"));
1352                 break;
1353
1354         case MeterPreFader:
1355                 meter_point_label.set_text (_("pre"));
1356                 break;
1357
1358         case MeterPostFader:
1359                 meter_point_label.set_text (_("post"));
1360                 break;
1361         }
1362
1363         gpm.setup_meters ();
1364         // reset peak when meter point changes
1365         gpm.reset_peak_display();
1366         set_width(_width, this);
1367 }
1368