gtk2_ardour/mixer_ui.cc

   1 /*
   2     Copyright (C) 2000-2004 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
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <algorithm>
  25 #include <map>
  26 #include <sigc++/bind.h>
  27
  28 #include <gtkmm/accelmap.h>
  29
  30 #include "pbd/convert.h"
  31 #include "pbd/stacktrace.h"
  32 #include "pbd/unwind.h"
  33
  34 #include <glibmm/threads.h>
  35
  36 #include <gtkmm2ext/gtk_ui.h>
  37 #include <gtkmm2ext/keyboard.h>
  38 #include <gtkmm2ext/utils.h>
  39 #include <gtkmm2ext/tearoff.h>
  40 #include <gtkmm2ext/window_title.h>
  41 #include <gtkmm2ext/doi.h>
  42
  43 #include "ardour/amp.h"
  44 #include "ardour/debug.h"
  45 #include "ardour/audio_track.h"
  46 #include "ardour/midi_track.h"
  47 #include "ardour/plugin_manager.h"
  48 #include "ardour/route_group.h"
  49 #include "ardour/session.h"
  50 #include "ardour/vca.h"
  51 #include "ardour/vca_manager.h"
  52
  53 #include "keyboard.h"
  54 #include "mixer_ui.h"
  55 #include "mixer_strip.h"
  56 #include "monitor_section.h"
  57 #include "plugin_selector.h"
  58 #include "public_editor.h"
  59 #include "mouse_cursors.h"
  60 #include "ardour_ui.h"
  61 #include "prompter.h"
  62 #include "utils.h"
  63 #include "route_sorter.h"
  64 #include "actions.h"
  65 #include "gui_thread.h"
  66 #include "mixer_group_tabs.h"
  67 #include "route_sorter.h"
  68 #include "timers.h"
  69 #include "ui_config.h"
  70 #include "vca_master_strip.h"
  71
  72 #include "i18n.h"
  73
  74 using namespace ARDOUR;
  75 using namespace ARDOUR_UI_UTILS;
  76 using namespace PBD;
  77 using namespace Gtk;
  78 using namespace Glib;
  79 using namespace Gtkmm2ext;
  80 using namespace std;
  81
  82 using PBD::atoi;
  83 using PBD::Unwinder;
  84
  85 Mixer_UI* Mixer_UI::_instance = 0;
  86
  87 Mixer_UI*
  88 Mixer_UI::instance ()
  89 {
  90         if (!_instance) {
  91                 _instance  = new Mixer_UI;
  92         }
  93
  94         return _instance;
  95 }
  96
  97 Mixer_UI::Mixer_UI ()
  98         : Tabbable (_content, _("Mixer"))
  99         , no_track_list_redisplay (false)
 100         , in_group_row_change (false)
 101         , track_menu (0)
 102         , _monitor_section (0)
 103         , _plugin_selector (0)
 104         , _strip_width (UIConfiguration::instance().get_default_narrow_ms() ? Narrow : Wide)
 105         , ignore_reorder (false)
 106         , _in_group_rebuild_or_clear (false)
 107         , _route_deletion_in_progress (false)
 108         , _following_editor_selection (false)
 109         , _maximised (false)
 110         , _show_mixer_list (true)
 111 {
 112         PresentationInfo::Change.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_presentation_info, this), gui_context());
 113
 114         /* bindings was already set in MixerActor constructor */
 115
 116         _content.set_data ("ardour-bindings", bindings);
 117
 118         scroller.set_can_default (true);
 119         // set_default (scroller);
 120
 121         scroller_base.set_flags (Gtk::CAN_FOCUS);
 122         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 123         scroller_base.set_name ("MixerWindow");
 124         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 125
 126         /* set up drag-n-drop */
 127         vector<TargetEntry> target_table;
 128         target_table.push_back (TargetEntry ("PluginFavoritePtr"));
 129         scroller_base.drag_dest_set (target_table);
 130         scroller_base.signal_drag_data_received().connect (sigc::mem_fun(*this, &Mixer_UI::scroller_drag_data_received));
 131
 132         // add as last item of strip packer
 133         strip_packer.pack_end (scroller_base, true, true);
 134
 135         _group_tabs = new MixerGroupTabs (this);
 136         VBox* b = manage (new VBox);
 137         b->pack_start (*_group_tabs, PACK_SHRINK);
 138         b->pack_start (strip_packer);
 139         b->show_all ();
 140
 141         scroller.add (*b);
 142         scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 143
 144         setup_track_display ();
 145
 146         group_model = ListStore::create (group_columns);
 147         group_display.set_model (group_model);
 148         group_display.append_column (_("Group"), group_columns.text);
 149         group_display.append_column (_("Show"), group_columns.visible);
 150         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 151         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 152         group_display.get_column (0)->set_expand(true);
 153         group_display.get_column (1)->set_expand(false);
 154         group_display.set_name ("EditGroupList");
 155         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 156         group_display.set_reorderable (true);
 157         group_display.set_headers_visible (true);
 158         group_display.set_rules_hint (true);
 159         group_display.set_can_focus(false);
 160
 161         /* name is directly editable */
 162
 163         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 164         name_cell->property_editable() = true;
 165         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 166
 167         /* use checkbox for the active column */
 168
 169         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 170         active_cell->property_activatable() = true;
 171         active_cell->property_radio() = false;
 172
 173         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 174         /* We use this to notice drag-and-drop reorders of the group list */
 175         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 176         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 177
 178         group_display_scroller.add (group_display);
 179         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 180
 181         HBox* route_group_display_button_box = manage (new HBox());
 182
 183         Button* route_group_add_button = manage (new Button ());
 184         Button* route_group_remove_button = manage (new Button ());
 185
 186         Widget* w;
 187
 188         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 189         w->show();
 190         route_group_add_button->add (*w);
 191
 192         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 193         w->show();
 194         route_group_remove_button->add (*w);
 195
 196         route_group_display_button_box->set_homogeneous (true);
 197
 198         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 199         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 200
 201         route_group_display_button_box->add (*route_group_add_button);
 202         route_group_display_button_box->add (*route_group_remove_button);
 203
 204         group_display_vbox.pack_start (group_display_scroller, true, true);
 205         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 206
 207         group_display_frame.set_name ("BaseFrame");
 208         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 209         group_display_frame.add (group_display_vbox);
 210
 211
 212         list<TargetEntry> target_list;
 213         target_list.push_back (TargetEntry ("PluginPresetPtr"));
 214
 215         favorite_plugins_model = PluginTreeStore::create (favorite_plugins_columns);
 216         favorite_plugins_display.set_model (favorite_plugins_model);
 217         favorite_plugins_display.append_column (_("Favorite Plugins"), favorite_plugins_columns.name);
 218         favorite_plugins_display.set_name ("EditGroupList");
 219         favorite_plugins_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 220         favorite_plugins_display.set_reorderable (false);
 221         favorite_plugins_display.set_headers_visible (true);
 222         favorite_plugins_display.set_rules_hint (true);
 223         favorite_plugins_display.set_can_focus (false);
 224         favorite_plugins_display.add_object_drag (favorite_plugins_columns.plugin.index(), "PluginFavoritePtr");
 225         favorite_plugins_display.set_drag_column (favorite_plugins_columns.name.index());
 226         favorite_plugins_display.add_drop_targets (target_list);
 227         favorite_plugins_display.signal_row_activated().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_activated));
 228         favorite_plugins_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_button_press), false);
 229         favorite_plugins_display.signal_drop.connect (sigc::mem_fun (*this, &Mixer_UI::plugin_drop));
 230         favorite_plugins_display.signal_row_expanded().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 231         favorite_plugins_display.signal_row_collapsed().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 232         favorite_plugins_model->signal_row_has_child_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::sync_treeview_favorite_ui_state));
 233
 234         favorite_plugins_scroller.add (favorite_plugins_display);
 235         favorite_plugins_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 236
 237         favorite_plugins_frame.set_name ("BaseFrame");
 238         favorite_plugins_frame.set_shadow_type (Gtk::SHADOW_IN);
 239         favorite_plugins_frame.add (favorite_plugins_scroller);
 240
 241         rhs_pane1.add (favorite_plugins_frame);
 242         rhs_pane1.add (track_display_frame);
 243         rhs_pane2.add (rhs_pane1);
 244         rhs_pane2.add (group_display_frame);
 245
 246         list_vpacker.pack_start (rhs_pane2, true, true);
 247
 248         string vca_text = _("Control Masters");
 249         Gtk::HBox* vca_top_padding = manage (new Gtk::HBox);
 250         vca_top_padding->set_size_request (-1, 2);
 251         vca_vpacker.pack_start (*vca_top_padding, false, false);
 252
 253         vca_label.set_text (vca_text);
 254         vca_label_bar.set_size_request (-1, 16); /* must match height in GroupTabs::set_size_request() */
 255
 256         vca_label_bar.set_name (X_("VCALabelBar"));
 257         vca_label_bar.add (vca_label);
 258
 259         vca_vpacker.pack_start (vca_label_bar, false, false);
 260
 261         vca_scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 262         vca_scroller_base.set_name (X_("MixerWindow"));
 263         vca_scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::masters_scroller_button_release), false);
 264         vca_hpacker.pack_end (vca_scroller_base, true, true);
 265
 266         vca_scroller.add (vca_hpacker);
 267         vca_scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 268         vca_scroller.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 269
 270         vca_vpacker.pack_start (vca_scroller, true, true);
 271
 272         inner_pane.add (scroller);
 273         inner_pane.add (vca_vpacker);
 274
 275         global_hpacker.pack_start (inner_pane, true, true);
 276         global_hpacker.pack_start (out_packer, false, false);
 277
 278         list_hpane.add (list_vpacker);
 279         list_hpane.add (global_hpacker);
 280
 281
 282         XMLNode const * settings = ARDOUR_UI::instance()->mixer_settings();
 283         XMLProperty const * prop;
 284         float fract;
 285
 286         {
 287                 LocaleGuard lg;
 288
 289                 if (!settings || ((prop = settings->property ("mixer-rhs-pane1-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 290                         rhs_pane1.set_divider (0, 0.6f);
 291                 } else {
 292                         rhs_pane1.set_divider (0, fract);
 293                 }
 294                 if (!settings || ((prop = settings->property ("mixer-rhs-pane2-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 295                         rhs_pane2.set_divider (0, 0.7f);
 296                 } else {
 297                         rhs_pane2.set_divider (0, fract);
 298                 }
 299                 if (!settings || ((prop = settings->property ("mixer-list-hpane-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 300                         list_hpane.set_divider (0, 0.2f);
 301                 } else {
 302                         list_hpane.set_divider (0, fract);
 303                 }
 304                 if (!settings || ((prop = settings->property ("mixer-inner-pane-pos")) == 0)  || ((fract = atof (prop->value())) > 1.0)) {
 305                         inner_pane.set_divider (0, 0.8f);
 306                 } else {
 307                         inner_pane.set_divider (0, atof (prop->value()));
 308                 }
 309         }
 310
 311         rhs_pane1.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 312         rhs_pane2.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 313         list_hpane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 314         inner_pane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 315
 316         _content.pack_start (list_hpane, true, true);
 317
 318         update_title ();
 319
 320         route_group_display_button_box->show();
 321         route_group_add_button->show();
 322         route_group_remove_button->show();
 323
 324         _content.show ();
 325         _content.set_name ("MixerWindow");
 326
 327         global_hpacker.show();
 328         scroller.show();
 329         scroller_base.show();
 330         scroller_hpacker.show();
 331         mixer_scroller_vpacker.show();
 332         list_vpacker.show();
 333         group_display_button_label.show();
 334         group_display_button.show();
 335         group_display_scroller.show();
 336         favorite_plugins_scroller.show();
 337         group_display_vbox.show();
 338         group_display_frame.show();
 339         favorite_plugins_frame.show();
 340         rhs_pane1.show();
 341         rhs_pane2.show();
 342         strip_packer.show();
 343         inner_pane.show();
 344         vca_top_padding->show ();
 345         vca_scroller.show();
 346         vca_vpacker.show();
 347         vca_hpacker.show();
 348         vca_label_bar.show();
 349         vca_label.show();
 350         vca_scroller_base.show();
 351         out_packer.show();
 352         list_hpane.show();
 353         group_display.show();
 354         favorite_plugins_display.show();
 355
 356         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 357
 358         /* handle escape */
 359
 360         ARDOUR_UI::instance()->Escape.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::escape, this), gui_context());
 361
 362 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 363         _plugin_selector = new PluginSelector (PluginManager::instance ());
 364 #else
 365 #error implement deferred Plugin-Favorite list
 366 #endif
 367         PluginManager::instance ().PluginListChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 368         PluginManager::instance ().PluginStatusesChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 369         ARDOUR::Plugin::PresetsChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 370 }
 371
 372 Mixer_UI::~Mixer_UI ()
 373 {
 374         if (_monitor_section) {
 375                 monitor_section_detached ();
 376                 delete _monitor_section;
 377         }
 378         delete _plugin_selector;
 379 }
 380
 381 void
 382 Mixer_UI::escape ()
 383 {
 384         select_none ();
 385 }
 386
 387 void
 388 Mixer_UI::track_editor_selection ()
 389 {
 390         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 391 }
 392
 393 Gtk::Window*
 394 Mixer_UI::use_own_window (bool and_fill_it)
 395 {
 396         bool new_window = !own_window();
 397
 398         Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
 399
 400
 401         if (win && new_window) {
 402                 win->set_name ("MixerWindow");
 403                 ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Mixer"), this);
 404                 win->signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_scroll_event), false);
 405                 win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
 406                 win->set_data ("ardour-bindings", bindings);
 407                 update_title ();
 408         }
 409
 410         return win;
 411 }
 412
 413 void
 414 Mixer_UI::show_window ()
 415 {
 416         Tabbable::show_window ();
 417
 418         /* show/hide group tabs as required */
 419         parameter_changed ("show-group-tabs");
 420
 421         /* now reset each strips width so the right widgets are shown */
 422
 423         TreeModel::Children rows = track_model->children();
 424         TreeModel::Children::iterator ri;
 425
 426         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 427                 AxisView* av = (*ri)[stripable_columns.strip];
 428                 MixerStrip* ms = dynamic_cast<MixerStrip*> (av);
 429                 if (!ms) {
 430                         continue;
 431                 }
 432                 ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 433                 /* Fix visibility of mixer strip stuff */
 434                 ms->parameter_changed (X_("mixer-element-visibility"));
 435         }
 436
 437         /* force focus into main area */
 438         scroller_base.grab_focus ();
 439 }
 440
 441 void
 442 Mixer_UI::remove_master (VCAMasterStrip* vms)
 443 {
 444         if (_session && _session->deletion_in_progress()) {
 445                 /* its all being taken care of */
 446                 return;
 447         }
 448
 449         TreeModel::Children rows = track_model->children();
 450         TreeModel::Children::iterator ri;
 451
 452         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 453                 if ((*ri)[stripable_columns.strip] == vms) {
 454                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 455                         track_model->erase (ri);
 456                         break;
 457                 }
 458         }
 459 }
 460
 461 bool
 462 Mixer_UI::masters_scroller_button_release (GdkEventButton* ev)
 463 {
 464         using namespace Menu_Helpers;
 465
 466         if (Keyboard::is_context_menu_event (ev)) {
 467                 ARDOUR_UI::instance()->add_route ();
 468                 return true;
 469         }
 470
 471         return false;
 472 }
 473
 474 void
 475 Mixer_UI::add_masters (VCAList& vlist)
 476 {
 477         StripableList sl;
 478
 479         for (VCAList::iterator v = vlist.begin(); v != vlist.end(); ++v) {
 480                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
 481         }
 482
 483         add_stripables (sl);
 484 }
 485
 486 void
 487 Mixer_UI::add_routes (RouteList& rlist)
 488 {
 489         StripableList sl;
 490
 491         for (RouteList::iterator r = rlist.begin(); r != rlist.end(); ++r) {
 492                 sl.push_back (*r);
 493         }
 494
 495         add_stripables (sl);
 496 }
 497
 498 void
 499 Mixer_UI::add_stripables (StripableList& slist)
 500 {
 501         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 502         bool from_scratch = (track_model->children().size() == 0);
 503         uint32_t nroutes = 0;
 504
 505         slist.sort (StripablePresentationInfoSorter());
 506
 507         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 508                 boost::shared_ptr<Stripable> s = (*it)[stripable_columns.stripable];
 509
 510                 if (!s) {
 511                         continue;
 512                 }
 513
 514                 nroutes++;
 515
 516                 if (s->presentation_info().order() == (slist.front()->presentation_info().order() + slist.size())) {
 517                         insert_iter = it;
 518                         break;
 519                 }
 520         }
 521
 522         MixerStrip* strip;
 523
 524
 525         try {
 526                 PBD::Unwinder<bool> uw (no_track_list_redisplay, true);
 527
 528                 track_display.set_model (Glib::RefPtr<ListStore>());
 529
 530                 for (StripableList::iterator s = slist.begin(); s != slist.end(); ++s) {
 531
 532                         boost::shared_ptr<Route> route;
 533                         boost::shared_ptr<VCA> vca;
 534
 535                         if ((vca  = boost::dynamic_pointer_cast<VCA> (*s))) {
 536
 537                                 VCAMasterStrip* vms = new VCAMasterStrip (_session, vca);
 538
 539                                 TreeModel::Row row = *(track_model->append());
 540
 541                                 row[stripable_columns.text] = vca->name();
 542                                 row[stripable_columns.visible] = vms->marked_for_display ();
 543                                 row[stripable_columns.strip] = vms;
 544                                 row[stripable_columns.stripable] = vca;
 545
 546                                 vms->CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_master, this, _1), gui_context());
 547
 548                         } else if ((route = boost::dynamic_pointer_cast<Route> (*s))) {
 549
 550                                 if (route->is_auditioner()) {
 551                                         continue;
 552                                 }
 553
 554                                 if (route->is_monitor()) {
 555
 556                                         if (!_monitor_section) {
 557                                                 _monitor_section = new MonitorSection (_session);
 558
 559                                                 XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 560                                                 if (mnode) {
 561                                                         _monitor_section->tearoff().set_state (*mnode);
 562                                                 }
 563                                         }
 564
 565                                         out_packer.pack_end (_monitor_section->tearoff(), false, false);
 566                                         _monitor_section->set_session (_session);
 567                                         _monitor_section->tearoff().show_all ();
 568
 569                                         _monitor_section->tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
 570                                         _monitor_section->tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
 571
 572                                         monitor_section_attached ();
 573
 574                                         route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 575
 576                                         /* no regular strip shown for control out */
 577
 578                                         continue;
 579                                 }
 580
 581                                 strip = new MixerStrip (*this, _session, route);
 582                                 strips.push_back (strip);
 583
 584                                 UIConfiguration::instance().get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 585
 586                                 if (strip->width_owner() != strip) {
 587                                         strip->set_width_enum (_strip_width, this);
 588                                 }
 589
 590                                 show_strip (strip);
 591
 592                                 if (!route->is_master()) {
 593
 594                                         TreeModel::Row row = *(track_model->insert (insert_iter));
 595
 596                                         row[stripable_columns.text] = route->name();
 597                                         row[stripable_columns.visible] = strip->marked_for_display();
 598                                         row[stripable_columns.stripable] = route;
 599                                         row[stripable_columns.strip] = strip;
 600
 601                                         if (nroutes != 0) {
 602                                                 _selection.add (strip);
 603                                         }
 604
 605                                 } else {
 606
 607                                         out_packer.pack_start (*strip, false, false);
 608                                         strip->set_packed (true);
 609                                 }
 610
 611                                 strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 612                                 strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 613                         }
 614
 615                         (*s)->presentation_info().PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 616                         (*s)->PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 617                                                 }
 618
 619         } catch (const std::exception& e) {
 620                 error << string_compose (_("Error adding GUI elements for new tracks/busses %1"), e.what()) << endmsg;
 621         }
 622
 623         track_display.set_model (track_model);
 624
 625         if (!from_scratch) {
 626                 sync_presentation_info_from_treeview ();
 627         }
 628
 629         redisplay_track_list ();
 630 }
 631
 632 void
 633 Mixer_UI::deselect_all_strip_processors ()
 634 {
 635         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 636                 (*i)->deselect_all_processors();
 637         }
 638 }
 639
 640 void
 641 Mixer_UI::select_strip (MixerStrip& ms, bool add)
 642 {
 643         if (add) {
 644                 _selection.add (&ms);
 645         } else {
 646                 _selection.set (&ms);
 647         }
 648 }
 649
 650 void
 651 Mixer_UI::select_none ()
 652 {
 653         _selection.clear_routes();
 654         deselect_all_strip_processors();
 655 }
 656
 657 void
 658 Mixer_UI::delete_processors ()
 659 {
 660         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 661                 (*i)->delete_processors();
 662         }
 663 }
 664
 665
 666 void
 667 Mixer_UI::remove_strip (MixerStrip* strip)
 668 {
 669         if (_session && _session->deletion_in_progress()) {
 670                 /* its all being taken care of */
 671                 return;
 672         }
 673
 674         TreeModel::Children rows = track_model->children();
 675         TreeModel::Children::iterator ri;
 676         list<MixerStrip *>::iterator i;
 677
 678         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 679                 strips.erase (i);
 680         }
 681
 682         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 683                 if ((*ri)[stripable_columns.strip] == strip) {
 684                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 685                         track_model->erase (ri);
 686                         break;
 687                 }
 688         }
 689 }
 690
 691 void
 692 Mixer_UI::sync_presentation_info_from_treeview ()
 693 {
 694         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 695                 return;
 696         }
 697
 698         TreeModel::Children rows = track_model->children();
 699
 700         if (rows.empty()) {
 701                 return;
 702         }
 703
 704         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync presentation info from treeview\n");
 705
 706         TreeModel::Children::iterator ri;
 707         bool change = false;
 708         uint32_t order = 0;
 709
 710         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 711                 bool visible = (*ri)[stripable_columns.visible];
 712                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 713
 714                 if (!stripable) {
 715                         continue;
 716                 }
 717
 718                 /* Monitor and Auditioner do not get their presentation
 719                  * info reset here.
 720                  */
 721
 722                 if (stripable->is_monitor() || stripable->is_auditioner()) {
 723                         continue;
 724                 }
 725
 726                 /* Master also doesn't get set here but since the editor allows
 727                  * it to be reordered, we need to preserve its ordering.
 728                  */
 729
 730                 stripable->presentation_info().set_hidden (!visible);
 731
 732                 if (order != stripable->presentation_info().order()) {
 733                         stripable->set_presentation_order_explicit (order);
 734                         change = true;
 735                 }
 736
 737                 ++order;
 738         }
 739
 740         if (change) {
 741                 DEBUG_TRACE (DEBUG::OrderKeys, "... notify PI change from mixer GUI\n");
 742                 _session->notify_presentation_info_change ();
 743         }
 744 }
 745
 746 void
 747 Mixer_UI::sync_treeview_from_presentation_info ()
 748 {
 749         if (!_session || _session->deletion_in_progress()) {
 750                 return;
 751         }
 752
 753         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from presentation info.\n");
 754
 755         /* we could get here after either a change in the Mixer or Editor sort
 756          * order, but either way, the mixer order keys reflect the intended
 757          * order for the GUI, so reorder the treeview model to match it.
 758          */
 759
 760         vector<int> neworder;
 761         TreeModel::Children rows = track_model->children();
 762         uint32_t old_order = 0;
 763         bool changed = false;
 764
 765         if (rows.empty()) {
 766                 return;
 767         }
 768
 769         OrderingKeys sorted;
 770
 771         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 772                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 773                 sorted.push_back (OrderKeys (old_order, stripable->presentation_info().order()));
 774         }
 775
 776         SortByNewDisplayOrder cmp;
 777
 778         sort (sorted.begin(), sorted.end(), cmp);
 779         neworder.assign (sorted.size(), 0);
 780
 781         uint32_t n = 0;
 782
 783         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 784
 785                 neworder[n] = sr->old_display_order;
 786
 787                 if (sr->old_display_order != n) {
 788                         changed = true;
 789                 }
 790         }
 791
 792         if (changed) {
 793                 Unwinder<bool> uw (ignore_reorder, true);
 794                 track_model->reorder (neworder);
 795         }
 796
 797         redisplay_track_list ();
 798 }
 799
 800 void
 801 Mixer_UI::follow_editor_selection ()
 802 {
 803         if (_following_editor_selection) {
 804                 return;
 805         }
 806
 807         _following_editor_selection = true;
 808         _selection.block_routes_changed (true);
 809
 810         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 811
 812         _selection.clear_routes ();
 813
 814         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 815                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 816                 if (rtav) {
 817                         MixerStrip* ms = strip_by_route (rtav->route());
 818                         if (ms) {
 819                                 _selection.add (ms);
 820                         }
 821                 }
 822         }
 823
 824         _following_editor_selection = false;
 825         _selection.block_routes_changed (false);
 826 }
 827
 828
 829 MixerStrip*
 830 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 831 {
 832         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 833                 if ((*i)->route() == r) {
 834                         return (*i);
 835                 }
 836         }
 837
 838         return 0;
 839 }
 840
 841 bool
 842 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 843 {
 844         if (ev->button == 1) {
 845                 if (_selection.selected (strip)) {
 846                         /* primary-click: toggle selection state of strip */
 847                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 848                                 _selection.remove (strip);
 849                         } else if (_selection.routes.size() > 1) {
 850                                 /* de-select others */
 851                                 _selection.set (strip);
 852                         }
 853                 } else {
 854                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 855                                 _selection.add (strip);
 856                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 857
 858                                 /* extend selection */
 859
 860                                 vector<MixerStrip*> tmp;
 861                                 bool accumulate = false;
 862                                 bool found_another = false;
 863
 864                                 tmp.push_back (strip);
 865
 866                                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 867                                         if ((*i) == strip) {
 868                                                 /* hit clicked strip, start accumulating till we hit the first
 869                                                    selected strip
 870                                                 */
 871                                                 if (accumulate) {
 872                                                         /* done */
 873                                                         break;
 874                                                 } else {
 875                                                         accumulate = true;
 876                                                 }
 877                                         } else if (_selection.selected (*i)) {
 878                                                 /* hit selected strip. if currently accumulating others,
 879                                                    we're done. if not accumulating others, start doing so.
 880                                                 */
 881                                                 found_another = true;
 882                                                 if (accumulate) {
 883                                                         /* done */
 884                                                         break;
 885                                                 } else {
 886                                                         accumulate = true;
 887                                                 }
 888                                         } else {
 889                                                 if (accumulate) {
 890                                                         tmp.push_back (*i);
 891                                                 }
 892                                         }
 893                                 }
 894
 895                                 if (found_another) {
 896                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 897                                                 _selection.add (*i);
 898                                         }
 899                                 } else
 900                                         _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
 901                         } else {
 902                                 _selection.set (strip);
 903                         }
 904                 }
 905         }
 906
 907         return true;
 908 }
 909
 910 void
 911 Mixer_UI::set_session (Session* sess)
 912 {
 913         SessionHandlePtr::set_session (sess);
 914
 915         if (_plugin_selector) {
 916                 _plugin_selector->set_session (_session);
 917         }
 918
 919         _group_tabs->set_session (sess);
 920
 921         if (!_session) {
 922                 return;
 923         }
 924
 925         refill_favorite_plugins();
 926
 927         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 928         set_state (*node, 0);
 929
 930         update_title ();
 931
 932         initial_track_display ();
 933
 934         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_routes, this, _1), gui_context());
 935         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 936         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 937         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 938         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 939         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 940         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 941
 942         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_masters, this, _1), gui_context());
 943
 944         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 945
 946         route_groups_changed ();
 947
 948         if (_visible) {
 949                 show_window();
 950         }
 951         start_updating ();
 952 }
 953
 954 void
 955 Mixer_UI::session_going_away ()
 956 {
 957         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 958
 959         _in_group_rebuild_or_clear = true;
 960         group_model->clear ();
 961         _in_group_rebuild_or_clear = false;
 962
 963         _selection.clear ();
 964         track_model->clear ();
 965
 966         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 967                 delete (*i);
 968         }
 969
 970         if (_monitor_section) {
 971                 _monitor_section->tearoff().hide_visible ();
 972         }
 973
 974         monitor_section_detached ();
 975
 976         strips.clear ();
 977
 978         stop_updating ();
 979
 980         SessionHandlePtr::session_going_away ();
 981
 982         _session = 0;
 983         update_title ();
 984 }
 985
 986 void
 987 Mixer_UI::track_visibility_changed (std::string const & path)
 988 {
 989         if (_session && _session->deletion_in_progress()) {
 990                 return;
 991         }
 992
 993         TreeIter iter;
 994
 995         if ((iter = track_model->get_iter (path))) {
 996
 997                 AxisView* av = (*iter)[stripable_columns.strip];
 998                 bool visible = (*iter)[stripable_columns.visible];
 999
1000                 if (av->set_marked_for_display (!visible)) {
1001                         update_track_visibility ();
1002                 }
1003         }
1004 }
1005
1006 void
1007 Mixer_UI::update_track_visibility ()
1008 {
1009         TreeModel::Children rows = track_model->children();
1010         TreeModel::Children::iterator i;
1011
1012         {
1013                 Unwinder<bool> uw (no_track_list_redisplay, true);
1014
1015                 for (i = rows.begin(); i != rows.end(); ++i) {
1016                         AxisView* av = (*i)[stripable_columns.strip];
1017                         (*i)[stripable_columns.visible] = av->marked_for_display ();
1018                 }
1019
1020                 /* force presentation catch up with visibility changes
1021                  */
1022
1023                 sync_presentation_info_from_treeview ();
1024         }
1025
1026         redisplay_track_list ();
1027 }
1028
1029 void
1030 Mixer_UI::show_strip (MixerStrip* ms)
1031 {
1032         TreeModel::Children rows = track_model->children();
1033         TreeModel::Children::iterator i;
1034
1035         for (i = rows.begin(); i != rows.end(); ++i) {
1036
1037                 AxisView* av = (*i)[stripable_columns.strip];
1038                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1039                 if (strip == ms) {
1040                         (*i)[stripable_columns.visible] = true;
1041                         redisplay_track_list ();
1042                         break;
1043                 }
1044         }
1045 }
1046
1047 void
1048 Mixer_UI::hide_strip (MixerStrip* ms)
1049 {
1050         TreeModel::Children rows = track_model->children();
1051         TreeModel::Children::iterator i;
1052
1053         for (i = rows.begin(); i != rows.end(); ++i) {
1054
1055                 AxisView* av = (*i)[stripable_columns.strip];
1056                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1057                 if (strip == ms) {
1058                         (*i)[stripable_columns.visible] = false;
1059                         redisplay_track_list ();
1060                         break;
1061                 }
1062         }
1063 }
1064
1065 gint
1066 Mixer_UI::start_updating ()
1067 {
1068     fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
1069     return 0;
1070 }
1071
1072 gint
1073 Mixer_UI::stop_updating ()
1074 {
1075     fast_screen_update_connection.disconnect();
1076     return 0;
1077 }
1078
1079 void
1080 Mixer_UI::fast_update_strips ()
1081 {
1082         if (_content.is_mapped () && _session) {
1083                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1084                         (*i)->fast_update ();
1085                 }
1086         }
1087 }
1088
1089 void
1090 Mixer_UI::set_all_strips_visibility (bool yn)
1091 {
1092         TreeModel::Children rows = track_model->children();
1093         TreeModel::Children::iterator i;
1094
1095         {
1096                 Unwinder<bool> uw (no_track_list_redisplay, true);
1097
1098                 for (i = rows.begin(); i != rows.end(); ++i) {
1099
1100                         AxisView* av = (*i)[stripable_columns.strip];
1101                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1102
1103                         if (!strip) {
1104                                 continue;
1105                         }
1106
1107                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1108                                 continue;
1109                         }
1110
1111                         (*i)[stripable_columns.visible] = yn;
1112                 }
1113         }
1114
1115         redisplay_track_list ();
1116 }
1117
1118
1119 void
1120 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
1121 {
1122         TreeModel::Children rows = track_model->children();
1123         TreeModel::Children::iterator i;
1124
1125         {
1126                 Unwinder<bool> uw (no_track_list_redisplay, true);
1127
1128                 for (i = rows.begin(); i != rows.end(); ++i) {
1129
1130                         AxisView* av = (*i)[stripable_columns.strip];
1131                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1132
1133                         if (!strip) {
1134                                 continue;
1135                         }
1136
1137                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1138                                 continue;
1139                         }
1140
1141                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
1142                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
1143
1144                         switch (tracks) {
1145                         case 0:
1146                                 (*i)[stripable_columns.visible] = yn;
1147                                 break;
1148
1149                         case 1:
1150                                 if (at) { /* track */
1151                                         (*i)[stripable_columns.visible] = yn;
1152                                 }
1153                                 break;
1154
1155                         case 2:
1156                                 if (!at && !mt) { /* bus */
1157                                         (*i)[stripable_columns.visible] = yn;
1158                                 }
1159                                 break;
1160
1161                         case 3:
1162                                 if (mt) { /* midi-track */
1163                                         (*i)[stripable_columns.visible] = yn;
1164                                 }
1165                                 break;
1166                         }
1167                 }
1168         }
1169
1170         redisplay_track_list ();
1171 }
1172
1173 void
1174 Mixer_UI::hide_all_routes ()
1175 {
1176         set_all_strips_visibility (false);
1177 }
1178
1179 void
1180 Mixer_UI::show_all_routes ()
1181 {
1182         set_all_strips_visibility (true);
1183 }
1184
1185 void
1186 Mixer_UI::show_all_audiobus ()
1187 {
1188         set_all_audio_midi_visibility (2, true);
1189 }
1190 void
1191 Mixer_UI::hide_all_audiobus ()
1192 {
1193         set_all_audio_midi_visibility (2, false);
1194 }
1195
1196 void
1197 Mixer_UI::show_all_audiotracks()
1198 {
1199         set_all_audio_midi_visibility (1, true);
1200 }
1201 void
1202 Mixer_UI::hide_all_audiotracks ()
1203 {
1204         set_all_audio_midi_visibility (1, false);
1205 }
1206
1207 void
1208 Mixer_UI::show_all_miditracks()
1209 {
1210         set_all_audio_midi_visibility (3, true);
1211 }
1212 void
1213 Mixer_UI::hide_all_miditracks ()
1214 {
1215         set_all_audio_midi_visibility (3, false);
1216 }
1217
1218 void
1219 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1220 {
1221         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1222         sync_presentation_info_from_treeview ();
1223 }
1224
1225 void
1226 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1227 {
1228         /* this happens as the second step of a DnD within the treeview as well
1229            as when a row/route is actually deleted.
1230
1231            if it was a deletion then we have to force a redisplay because
1232            order keys may not have changed.
1233         */
1234
1235         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1236         sync_presentation_info_from_treeview ();
1237
1238         if (_route_deletion_in_progress) {
1239                 redisplay_track_list ();
1240         }
1241 }
1242
1243 void
1244 Mixer_UI::spill_redisplay (boost::shared_ptr<VCA> vca)
1245 {
1246         TreeModel::Children rows = track_model->children();
1247
1248         for (TreeModel::Children::iterator i = rows.begin(); i != rows.end(); ++i) {
1249
1250                 AxisView* av = (*i)[stripable_columns.strip];
1251                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1252
1253                 if (!strip) {
1254                         /* we're in the middle of changing a row, don't worry */
1255                         continue;
1256                 }
1257
1258                 if (!strip->route()) {
1259                         /* non-route element */
1260                         continue;
1261                 }
1262
1263                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1264                         continue;
1265                 }
1266
1267                 if (strip->route()->slaved_to (vca)) {
1268
1269                         if (strip->packed()) {
1270                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1271                         } else {
1272                                 strip_packer.pack_start (*strip, false, false);
1273                                 strip->set_packed (true);
1274                         }
1275
1276                 } else {
1277
1278                         if (strip->packed()) {
1279                                 strip_packer.remove (*strip);
1280                                 strip->set_packed (false);
1281                         }
1282                 }
1283         }
1284 }
1285
1286 void
1287 Mixer_UI::redisplay_track_list ()
1288 {
1289         if (no_track_list_redisplay) {
1290                 return;
1291         }
1292
1293         boost::shared_ptr<VCA> sv = spilled_vca.lock ();
1294
1295         if (sv) {
1296                 spill_redisplay (sv);
1297                 return;
1298         }
1299
1300         TreeModel::Children rows = track_model->children();
1301         TreeModel::Children::iterator i;
1302         uint32_t n_masters = 0;
1303
1304         container_clear (vca_hpacker);
1305         vca_hpacker.pack_end (vca_scroller_base, true, true);
1306
1307         for (i = rows.begin(); i != rows.end(); ++i) {
1308
1309                 AxisView* s = (*i)[stripable_columns.strip];
1310                 bool const visible = (*i)[stripable_columns.visible];
1311                 boost::shared_ptr<Stripable> stripable = (*i)[stripable_columns.stripable];
1312
1313                 if (!s) {
1314                         /* we're in the middle of changing a row, don't worry */
1315                         continue;
1316                 }
1317
1318                 VCAMasterStrip* vms;
1319
1320                 if ((vms = dynamic_cast<VCAMasterStrip*> (s))) {
1321                         if (visible) {
1322                                 vca_hpacker.pack_start (*vms, false, false);
1323                                 vms->show ();
1324                                 n_masters++;
1325                         }
1326                         continue;
1327                 }
1328
1329                 MixerStrip* strip = dynamic_cast<MixerStrip*> (s);
1330
1331                 if (!strip) {
1332                         continue;
1333                 }
1334
1335                 if (visible) {
1336
1337                         if (strip->packed()) {
1338                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1339                         } else {
1340                                 strip_packer.pack_start (*strip, false, false);
1341                                 strip->set_packed (true);
1342                         }
1343
1344                 } else {
1345
1346                         if (stripable->is_master() || stripable->is_monitor()) {
1347                                 /* do nothing, these cannot be hidden */
1348                         } else {
1349                                 if (strip->packed()) {
1350                                         strip_packer.remove (*strip);
1351                                         strip->set_packed (false);
1352                                 }
1353                         }
1354                 }
1355         }
1356
1357         /* update visibility of VCA assign buttons */
1358
1359         if (n_masters == 0) {
1360                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::remove_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1361                 vca_scroller.hide ();
1362         } else {
1363                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::add_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1364                 vca_scroller.show ();
1365         }
1366
1367         _group_tabs->set_dirty ();
1368 }
1369
1370 void
1371 Mixer_UI::strip_width_changed ()
1372 {
1373         _group_tabs->set_dirty ();
1374
1375 #ifdef __APPLE__
1376         TreeModel::Children rows = track_model->children();
1377         TreeModel::Children::iterator i;
1378         long order;
1379
1380         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1381                 AxisView* av = (*i)[stripable_columns.strip];
1382                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1383
1384                 if (strip == 0) {
1385                         continue;
1386                 }
1387
1388                 bool visible = (*i)[stripable_columns.visible];
1389
1390                 if (visible) {
1391                         strip->queue_draw();
1392                 }
1393         }
1394 #endif
1395
1396 }
1397
1398 struct PresentationInfoMixerSorter
1399 {
1400         bool operator() (boost::shared_ptr<Stripable> a, boost::shared_ptr<Stripable> b) {
1401                 if (a->is_master()) {
1402                         /* master after everything else */
1403                         return false;
1404                 } else if (b->is_master()) {
1405                         /* everything else before master */
1406                         return true;
1407                 }
1408                 return a->presentation_info().order () < b->presentation_info().order ();
1409         }
1410 };
1411
1412 void
1413 Mixer_UI::initial_track_display ()
1414 {
1415         StripableList sl;
1416
1417         boost::shared_ptr<RouteList> routes = _session->get_routes();
1418
1419         for (RouteList::iterator r = routes->begin(); r != routes->end(); ++r) {
1420                 sl.push_back (*r);
1421         }
1422
1423         VCAList vcas = _session->vca_manager().vcas();
1424
1425         for (VCAList::iterator v = vcas.begin(); v != vcas.end(); ++v) {
1426                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
1427         }
1428
1429         sl.sort (PresentationInfoMixerSorter());
1430
1431         {
1432                 /* These are also used inside ::add_stripables() but we need
1433                  *  them here because we're going to clear the track_model also.
1434                  */
1435                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1436                 Unwinder<bool> uw2 (ignore_reorder, true);
1437
1438                 track_model->clear ();
1439                 add_stripables (sl);
1440         }
1441
1442         redisplay_track_list ();
1443 }
1444
1445 void
1446 Mixer_UI::show_track_list_menu ()
1447 {
1448         if (track_menu == 0) {
1449                 build_track_menu ();
1450         }
1451
1452         track_menu->popup (1, gtk_get_current_event_time());
1453 }
1454
1455 bool
1456 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1457 {
1458         if (Keyboard::is_context_menu_event (ev)) {
1459                 show_track_list_menu ();
1460                 return true;
1461         }
1462
1463         return false;
1464 }
1465
1466 void
1467 Mixer_UI::build_track_menu ()
1468 {
1469         using namespace Menu_Helpers;
1470         using namespace Gtk;
1471
1472         track_menu = new Menu;
1473         track_menu->set_name ("ArdourContextMenu");
1474         MenuList& items = track_menu->items();
1475
1476         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1477         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1478         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1479         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1480         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1481         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1482         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1483         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1484
1485 }
1486
1487 void
1488 Mixer_UI::stripable_property_changed (const PropertyChange& what_changed, boost::weak_ptr<Stripable> ws)
1489 {
1490         if (!what_changed.contains (ARDOUR::Properties::hidden) && !what_changed.contains (ARDOUR::Properties::name)) {
1491                 return;
1492         }
1493
1494         boost::shared_ptr<Stripable> s = ws.lock ();
1495
1496         if (!s) {
1497                 return;
1498         }
1499
1500         TreeModel::Children rows = track_model->children();
1501         TreeModel::Children::iterator i;
1502
1503         for (i = rows.begin(); i != rows.end(); ++i) {
1504                 boost::shared_ptr<Stripable> ss = (*i)[stripable_columns.stripable];
1505
1506                 if (s == ss) {
1507
1508                         if (what_changed.contains (ARDOUR::Properties::name)) {
1509                                 (*i)[stripable_columns.text] = s->name();
1510                         }
1511
1512                         if (what_changed.contains (ARDOUR::Properties::hidden)) {
1513                                 (*i)[stripable_columns.visible] = !s->presentation_info().hidden();
1514                                 redisplay_track_list ();
1515                         }
1516
1517                         return;
1518                 }
1519         }
1520
1521         error << _("track display list item for renamed strip not found!") << endmsg;
1522 }
1523
1524 bool
1525 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1526 {
1527         TreeModel::Path path;
1528         TreeViewColumn* column;
1529         int cellx;
1530         int celly;
1531
1532         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1533                 _group_tabs->get_menu(0)->popup (1, ev->time);
1534                 return true;
1535         }
1536
1537         TreeIter iter = group_model->get_iter (path);
1538         if (!iter) {
1539                 _group_tabs->get_menu(0)->popup (1, ev->time);
1540                 return true;
1541         }
1542
1543         RouteGroup* group = (*iter)[group_columns.group];
1544
1545         if (Keyboard::is_context_menu_event (ev)) {
1546                 _group_tabs->get_menu(group)->popup (1, ev->time);
1547                 return true;
1548         }
1549
1550         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1551         case 0:
1552                 if (Keyboard::is_edit_event (ev)) {
1553                         if (group) {
1554                                 // edit_route_group (group);
1555 #ifdef __APPLE__
1556                                 group_display.queue_draw();
1557 #endif
1558                                 return true;
1559                         }
1560                 }
1561                 break;
1562
1563         case 1:
1564         {
1565                 bool visible = (*iter)[group_columns.visible];
1566                 (*iter)[group_columns.visible] = !visible;
1567 #ifdef __APPLE__
1568                 group_display.queue_draw();
1569 #endif
1570                 return true;
1571         }
1572
1573         default:
1574                 break;
1575         }
1576
1577         return false;
1578  }
1579
1580 void
1581 Mixer_UI::activate_all_route_groups ()
1582 {
1583         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1584 }
1585
1586 void
1587 Mixer_UI::disable_all_route_groups ()
1588 {
1589         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1590 }
1591
1592 void
1593 Mixer_UI::route_groups_changed ()
1594 {
1595         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1596
1597         _in_group_rebuild_or_clear = true;
1598
1599         /* just rebuild the while thing */
1600
1601         group_model->clear ();
1602
1603 #if 0
1604         /* this is currently not used,
1605          * Mixer_UI::group_display_button_press() has a case for it,
1606          * and a commented edit_route_group() but that's n/a since 2011.
1607          *
1608          * This code is left as reminder that
1609          * row[group_columns.group] = 0 has special meaning.
1610          */
1611         {
1612                 TreeModel::Row row;
1613                 row = *(group_model->append());
1614                 row[group_columns.visible] = true;
1615                 row[group_columns.text] = (_("-all-"));
1616                 row[group_columns.group] = 0;
1617         }
1618 #endif
1619
1620         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1621
1622         _group_tabs->set_dirty ();
1623         _in_group_rebuild_or_clear = false;
1624 }
1625
1626 void
1627 Mixer_UI::new_route_group ()
1628 {
1629         _group_tabs->run_new_group_dialog (0, false);
1630 }
1631
1632 void
1633 Mixer_UI::remove_selected_route_group ()
1634 {
1635         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1636         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1637
1638         if (rows.empty()) {
1639                 return;
1640         }
1641
1642         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1643         TreeIter iter;
1644
1645         /* selection mode is single, so rows.begin() is it */
1646
1647         if ((iter = group_model->get_iter (*i))) {
1648
1649                 RouteGroup* rg = (*iter)[group_columns.group];
1650
1651                 if (rg) {
1652                         _session->remove_route_group (*rg);
1653                 }
1654         }
1655 }
1656
1657 void
1658 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1659 {
1660         if (in_group_row_change) {
1661                 return;
1662         }
1663
1664         /* force an update of any mixer strips that are using this group,
1665            otherwise mix group names don't change in mixer strips
1666         */
1667
1668         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1669                 if ((*i)->route_group() == group) {
1670                         (*i)->route_group_changed();
1671                 }
1672         }
1673
1674         TreeModel::iterator i;
1675         TreeModel::Children rows = group_model->children();
1676         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1677
1678         in_group_row_change = true;
1679
1680         for (i = rows.begin(); i != rows.end(); ++i) {
1681                 if ((*i)[group_columns.group] == group) {
1682                         (*i)[group_columns.visible] = !group->is_hidden ();
1683                         (*i)[group_columns.text] = group->name ();
1684                         break;
1685                 }
1686         }
1687
1688         in_group_row_change = false;
1689
1690         if (change.contains (Properties::name)) {
1691                 _group_tabs->set_dirty ();
1692         }
1693
1694         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1695                 if ((*j)->route_group() == group) {
1696                         if (group->is_hidden ()) {
1697                                 hide_strip (*j);
1698                         } else {
1699                                 show_strip (*j);
1700                         }
1701                 }
1702         }
1703 }
1704
1705 void
1706 Mixer_UI::show_mixer_list (bool yn)
1707 {
1708         if (yn) {
1709                 list_vpacker.show ();
1710         } else {
1711                 list_vpacker.hide ();
1712         }
1713
1714         _show_mixer_list = yn;
1715 }
1716
1717 void
1718 Mixer_UI::show_monitor_section (bool yn)
1719 {
1720         if (!monitor_section()) {
1721                 return;
1722         }
1723         if (monitor_section()->tearoff().torn_off()) {
1724                 return;
1725         }
1726
1727         if (yn) {
1728                 monitor_section()->tearoff().show();
1729         } else {
1730                 monitor_section()->tearoff().hide();
1731         }
1732 }
1733
1734 void
1735 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1736 {
1737         RouteGroup* group;
1738         TreeIter iter;
1739
1740         if ((iter = group_model->get_iter (path))) {
1741
1742                 if ((group = (*iter)[group_columns.group]) == 0) {
1743                         return;
1744                 }
1745
1746                 if (new_text != group->name()) {
1747                         group->set_name (new_text);
1748                 }
1749         }
1750 }
1751
1752 void
1753 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1754 {
1755         RouteGroup* group;
1756
1757         if (in_group_row_change) {
1758                 return;
1759         }
1760
1761         if ((group = (*iter)[group_columns.group]) == 0) {
1762                 return;
1763         }
1764
1765         std::string name = (*iter)[group_columns.text];
1766
1767         if (name != group->name()) {
1768                 group->set_name (name);
1769         }
1770
1771         bool hidden = !(*iter)[group_columns.visible];
1772
1773         if (hidden != group->is_hidden ()) {
1774                 group->set_hidden (hidden, this);
1775         }
1776 }
1777
1778 /** Called when a group model row is deleted, but also when the model is
1779  *  reordered by a user drag-and-drop; the latter is what we are
1780  *  interested in here.
1781  */
1782 void
1783 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1784 {
1785         if (_in_group_rebuild_or_clear) {
1786                 return;
1787         }
1788
1789         /* Re-write the session's route group list so that the new order is preserved */
1790
1791         list<RouteGroup*> new_list;
1792
1793         Gtk::TreeModel::Children children = group_model->children();
1794         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1795                 RouteGroup* g = (*i)[group_columns.group];
1796                 if (g) {
1797                         new_list.push_back (g);
1798                 }
1799         }
1800
1801         _session->reorder_route_groups (new_list);
1802 }
1803
1804
1805 void
1806 Mixer_UI::add_route_group (RouteGroup* group)
1807 {
1808         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1809         bool focus = false;
1810
1811         in_group_row_change = true;
1812
1813         TreeModel::Row row = *(group_model->append());
1814         row[group_columns.visible] = !group->is_hidden ();
1815         row[group_columns.group] = group;
1816         if (!group->name().empty()) {
1817                 row[group_columns.text] = group->name();
1818         } else {
1819                 row[group_columns.text] = _("unnamed");
1820                 focus = true;
1821         }
1822
1823         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1824
1825         if (focus) {
1826                 TreeViewColumn* col = group_display.get_column (0);
1827                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1828                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1829         }
1830
1831         _group_tabs->set_dirty ();
1832
1833         in_group_row_change = false;
1834 }
1835
1836 bool
1837 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1838 {
1839         using namespace Menu_Helpers;
1840
1841         if (Keyboard::is_context_menu_event (ev)) {
1842                 ARDOUR_UI::instance()->add_route ();
1843                 return true;
1844         }
1845
1846         return false;
1847 }
1848
1849 void
1850 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
1851 {
1852         printf ("Mixer_UI::scroller_drag_data_received\n");
1853         if (data.get_target() != "PluginFavoritePtr") {
1854                 context->drag_finish (false, false, time);
1855                 return;
1856         }
1857
1858         const void * d = data.get_data();
1859         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
1860
1861         PluginPresetList nfos;
1862         TreeView* source;
1863         tv->get_object_drag_data (nfos, &source);
1864
1865         Route::ProcessorList pl;
1866         bool ok = false;
1867
1868         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1869                 PluginPresetPtr ppp = (*i);
1870                 PluginInfoPtr pip = ppp->_pip;
1871                 if (!pip->is_instrument ()) {
1872                         continue;
1873                 }
1874                 ARDOUR_UI::instance()->session_add_midi_track ((RouteGroup*) 0, 1, _("MIDI"), Config->get_strict_io (), pip, ppp->_preset.valid ? &ppp->_preset : 0, PresentationInfo::max_order);
1875                 ok = true;
1876         }
1877
1878         context->drag_finish (ok, false, time);
1879 }
1880
1881 void
1882 Mixer_UI::set_strip_width (Width w, bool save)
1883 {
1884         _strip_width = w;
1885
1886         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1887                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1888         }
1889 }
1890
1891
1892 struct PluginStateSorter {
1893 public:
1894         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
1895                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
1896                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
1897                 if (aiter != _user.end() && biter != _user.end()) {
1898                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
1899                 }
1900                 if (aiter != _user.end()) {
1901                         return true;
1902                 }
1903                 if (biter != _user.end()) {
1904                         return false;
1905                 }
1906                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
1907         }
1908
1909         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
1910 private:
1911         std::list<std::string> _user;
1912 };
1913
1914 int
1915 Mixer_UI::set_state (const XMLNode& node, int version)
1916 {
1917         XMLProperty const * prop;
1918         LocaleGuard lg;
1919
1920         Tabbable::set_state (node, version);
1921
1922         if ((prop = node.property ("narrow-strips"))) {
1923                 if (string_is_affirmative (prop->value())) {
1924                         set_strip_width (Narrow);
1925                 } else {
1926                         set_strip_width (Wide);
1927                 }
1928         }
1929
1930         if ((prop = node.property ("show-mixer"))) {
1931                 if (string_is_affirmative (prop->value())) {
1932                        _visible = true;
1933                 }
1934         }
1935
1936         if ((prop = node.property ("maximised"))) {
1937                 bool yn = string_is_affirmative (prop->value());
1938                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
1939                 assert (act);
1940                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1941                 bool fs = tact && tact->get_active();
1942                 if (yn ^ fs) {
1943                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
1944                 }
1945         }
1946
1947         if ((prop = node.property ("show-mixer-list"))) {
1948                 bool yn = string_is_affirmative (prop->value());
1949                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
1950                 assert (act);
1951                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1952
1953                 /* do it twice to force the change */
1954                 tact->set_active (!yn);
1955                 tact->set_active (yn);
1956         }
1957
1958
1959         XMLNode* plugin_order;
1960         if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
1961                 store_current_favorite_order ();
1962                 std::list<string> order;
1963                 const XMLNodeList& kids = plugin_order->children("PluginInfo");
1964                 XMLNodeConstIterator i;
1965                 for (i = kids.begin(); i != kids.end(); ++i) {
1966                         if ((prop = (*i)->property ("unique-id"))) {
1967                                 std::string unique_id = prop->value();
1968                                 order.push_back (unique_id);
1969                                 if ((prop = (*i)->property ("expanded"))) {
1970                                         favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
1971                                 }
1972                         }
1973                 }
1974                 PluginStateSorter cmp (order);
1975                 favorite_order.sort (cmp);
1976                 sync_treeview_from_favorite_order ();
1977         }
1978         return 0;
1979 }
1980
1981 XMLNode&
1982 Mixer_UI::get_state ()
1983 {
1984         XMLNode* node = new XMLNode (X_("Mixer"));
1985         char buf[128];
1986         LocaleGuard lg;
1987
1988         node->add_child_nocopy (Tabbable::get_state());
1989
1990         snprintf(buf,sizeof(buf), "%f", rhs_pane1.get_divider());
1991         node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
1992         snprintf(buf,sizeof(buf), "%f", rhs_pane2.get_divider());
1993         node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
1994         snprintf(buf,sizeof(buf), "%f", list_hpane.get_divider());
1995         node->add_property(X_("mixer-list-hpane-pos"), string(buf));
1996         snprintf(buf,sizeof(buf), "%f", inner_pane.get_divider());
1997         node->add_property(X_("mixer-inner-pane-pos"), string(buf));
1998
1999         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
2000         node->add_property ("show-mixer", _visible ? "yes" : "no");
2001         node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
2002         node->add_property ("maximised", _maximised ? "yes" : "no");
2003
2004         store_current_favorite_order ();
2005         XMLNode* plugin_order = new XMLNode ("PluginOrder");
2006         int cnt = 0;
2007         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
2008                 XMLNode* p = new XMLNode ("PluginInfo");
2009                 p->add_property ("sort", cnt);
2010                 p->add_property ("unique-id", (*i)->unique_id);
2011                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
2012                         p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
2013                 }
2014                 plugin_order->add_child_nocopy (*p);
2015         }
2016         node->add_child_nocopy (*plugin_order);
2017
2018         return *node;
2019 }
2020
2021 void
2022 Mixer_UI::scroll_left ()
2023 {
2024         if (!scroller.get_hscrollbar()) return;
2025         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2026         /* stupid GTK: can't rely on clamping across versions */
2027         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
2028 }
2029
2030 void
2031 Mixer_UI::scroll_right ()
2032 {
2033         if (!scroller.get_hscrollbar()) return;
2034         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2035         /* stupid GTK: can't rely on clamping across versions */
2036         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
2037 }
2038
2039 bool
2040 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
2041 {
2042         switch (ev->direction) {
2043         case GDK_SCROLL_LEFT:
2044                 scroll_left ();
2045                 return true;
2046         case GDK_SCROLL_UP:
2047                 if (ev->state & Keyboard::TertiaryModifier) {
2048                         scroll_left ();
2049                         return true;
2050                 }
2051                 return false;
2052
2053         case GDK_SCROLL_RIGHT:
2054                 scroll_right ();
2055                 return true;
2056
2057         case GDK_SCROLL_DOWN:
2058                 if (ev->state & Keyboard::TertiaryModifier) {
2059                         scroll_right ();
2060                         return true;
2061                 }
2062                 return false;
2063         }
2064
2065         return false;
2066 }
2067
2068
2069 void
2070 Mixer_UI::parameter_changed (string const & p)
2071 {
2072         if (p == "show-group-tabs") {
2073                 bool const s = _session->config.get_show_group_tabs ();
2074                 if (s) {
2075                         _group_tabs->show ();
2076                 } else {
2077                         _group_tabs->hide ();
2078                 }
2079         } else if (p == "default-narrow_ms") {
2080                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2081                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2082                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2083                 }
2084         } else if (p == "use-monitor-bus") {
2085                 if (_session && !_session->monitor_out()) {
2086                         monitor_section_detached ();
2087                 }
2088         }
2089 }
2090
2091 void
2092 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2093 {
2094         g->set_active (a, this);
2095 }
2096
2097 PluginSelector*
2098 Mixer_UI::plugin_selector()
2099 {
2100 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2101         if (!_plugin_selector)
2102                 _plugin_selector = new PluginSelector (PluginManager::instance());
2103 #endif
2104
2105         return _plugin_selector;
2106 }
2107
2108 void
2109 Mixer_UI::setup_track_display ()
2110 {
2111         track_model = ListStore::create (stripable_columns);
2112         track_display.set_model (track_model);
2113         track_display.append_column (_("Strips"), stripable_columns.text);
2114         track_display.append_column (_("Show"), stripable_columns.visible);
2115         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2116         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2117         track_display.get_column (0)->set_expand(true);
2118         track_display.get_column (1)->set_expand(false);
2119         track_display.get_column (0)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2120         track_display.set_name (X_("EditGroupList"));
2121         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2122         track_display.set_reorderable (true);
2123         track_display.set_headers_visible (true);
2124         track_display.set_can_focus(false);
2125
2126         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2127         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2128
2129         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
2130         track_list_visible_cell->property_activatable() = true;
2131         track_list_visible_cell->property_radio() = false;
2132         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2133
2134         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2135
2136         track_display_scroller.add (track_display);
2137         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2138
2139         VBox* v = manage (new VBox);
2140         v->show ();
2141         v->pack_start (track_display_scroller, true, true);
2142
2143         Button* b = manage (new Button);
2144         b->show ();
2145         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
2146         w->show ();
2147         b->add (*w);
2148
2149         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
2150
2151         v->pack_start (*b, false, false);
2152
2153         track_display_frame.set_name("BaseFrame");
2154         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2155         track_display_frame.add (*v);
2156
2157         track_display_scroller.show();
2158         track_display_frame.show();
2159         track_display.show();
2160 }
2161
2162 void
2163 Mixer_UI::new_track_or_bus ()
2164 {
2165         ARDOUR_UI::instance()->add_route ();
2166 }
2167
2168 void
2169 Mixer_UI::update_title ()
2170 {
2171         if (!own_window()) {
2172                 return;
2173         }
2174
2175         if (_session) {
2176                 string n;
2177
2178                 if (_session->snap_name() != _session->name()) {
2179                         n = _session->snap_name ();
2180                 } else {
2181                         n = _session->name ();
2182                 }
2183
2184                 if (_session->dirty ()) {
2185                         n = "*" + n;
2186                 }
2187
2188                 WindowTitle title (n);
2189                 title += S_("Window|Mixer");
2190                 title += Glib::get_application_name ();
2191                 own_window()->set_title (title.get_string());
2192
2193         } else {
2194
2195                 WindowTitle title (S_("Window|Mixer"));
2196                 title += Glib::get_application_name ();
2197                 own_window()->set_title (title.get_string());
2198         }
2199 }
2200
2201 MixerStrip*
2202 Mixer_UI::strip_by_x (int x)
2203 {
2204         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2205                 int x1, x2, y;
2206
2207                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2208                 x2 = x1 + (*i)->get_width();
2209
2210                 if (x >= x1 && x <= x2) {
2211                         return (*i);
2212                 }
2213         }
2214
2215         return 0;
2216 }
2217
2218 void
2219 Mixer_UI::set_route_targets_for_operation ()
2220 {
2221         _route_targets.clear ();
2222
2223         if (!_selection.empty()) {
2224                 _route_targets = _selection.routes;
2225                 return;
2226         }
2227
2228 //  removed "implicit" selections of strips, after discussion on IRC
2229
2230 }
2231
2232 void
2233 Mixer_UI::monitor_section_going_away ()
2234 {
2235         if (_monitor_section) {
2236                 monitor_section_detached ();
2237                 out_packer.remove (_monitor_section->tearoff());
2238                 _monitor_section->set_session (0);
2239                 delete _monitor_section;
2240                 _monitor_section = 0;
2241         }
2242 }
2243
2244 void
2245 Mixer_UI::toggle_midi_input_active (bool flip_others)
2246 {
2247         boost::shared_ptr<RouteList> rl (new RouteList);
2248         bool onoff = false;
2249
2250         set_route_targets_for_operation ();
2251
2252         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
2253                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
2254
2255                 if (mt) {
2256                         rl->push_back ((*r)->route());
2257                         onoff = !mt->input_active();
2258                 }
2259         }
2260
2261         _session->set_exclusive_input_active (rl, onoff, flip_others);
2262 }
2263
2264 void
2265 Mixer_UI::maximise_mixer_space ()
2266 {
2267         if (!own_window()) {
2268                 return;
2269         }
2270
2271         if (_maximised) {
2272                 return;
2273         }
2274
2275         _window->fullscreen ();
2276         _maximised = true;
2277 }
2278
2279 void
2280 Mixer_UI::restore_mixer_space ()
2281 {
2282         if (!own_window()) {
2283                 return;
2284         }
2285
2286         if (!_maximised) {
2287                 return;
2288         }
2289
2290         own_window()->unfullscreen();
2291         _maximised = false;
2292 }
2293
2294 void
2295 Mixer_UI::monitor_section_attached ()
2296 {
2297         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2298         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2299         act->set_sensitive (true);
2300         tact->set_active ();
2301 }
2302
2303 void
2304 Mixer_UI::monitor_section_detached ()
2305 {
2306         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2307         act->set_sensitive (false);
2308 }
2309
2310 void
2311 Mixer_UI::store_current_favorite_order ()
2312 {
2313         typedef Gtk::TreeModel::Children type_children;
2314         type_children children = favorite_plugins_model->children();
2315         favorite_order.clear();
2316         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2317         {
2318                 Gtk::TreeModel::Row row = *iter;
2319                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2320                 favorite_order.push_back (ppp->_pip);
2321                 std::string name = row[favorite_plugins_columns.name];
2322                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2323         }
2324 }
2325
2326 void
2327 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2328 {
2329         Gtk::TreeModel::Row row = *iter;
2330         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2331         assert (ppp);
2332         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2333 }
2334
2335 void
2336 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2337 {
2338         PluginManager& manager (PluginManager::instance());
2339         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2340                 if (manager.get_status (*i) != PluginManager::Favorite) {
2341                         continue;
2342                 }
2343                 result.push_back (*i);
2344         }
2345 }
2346
2347 struct PluginCustomSorter {
2348 public:
2349         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2350                 PluginInfoList::const_iterator aiter = _user.begin();
2351                 PluginInfoList::const_iterator biter = _user.begin();
2352                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2353                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2354
2355                 if (aiter != _user.end() && biter != _user.end()) {
2356                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2357                 }
2358                 if (aiter != _user.end()) {
2359                         return true;
2360                 }
2361                 if (biter != _user.end()) {
2362                         return false;
2363                 }
2364                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2365         }
2366         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2367 private:
2368         PluginInfoList _user;
2369 };
2370
2371 void
2372 Mixer_UI::refill_favorite_plugins ()
2373 {
2374         PluginInfoList plugs;
2375         PluginManager& mgr (PluginManager::instance());
2376
2377 #ifdef LV2_SUPPORT
2378         refiller (plugs, mgr.lv2_plugin_info ());
2379 #endif
2380 #ifdef WINDOWS_VST_SUPPORT
2381         refiller (plugs, mgr.windows_vst_plugin_info ());
2382 #endif
2383 #ifdef LXVST_SUPPORT
2384         refiller (plugs, mgr.lxvst_plugin_info ());
2385 #endif
2386 #ifdef AUDIOUNIT_SUPPORT
2387         refiller (plugs, mgr.au_plugin_info ());
2388 #endif
2389         refiller (plugs, mgr.ladspa_plugin_info ());
2390         refiller (plugs, mgr.lua_plugin_info ());
2391
2392         store_current_favorite_order ();
2393
2394         PluginCustomSorter cmp (favorite_order);
2395         plugs.sort (cmp);
2396
2397         favorite_order = plugs;
2398
2399         sync_treeview_from_favorite_order ();
2400 }
2401
2402 void
2403 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2404 {
2405         TreeIter iter;
2406         if (!(iter = favorite_plugins_model->get_iter (path))) {
2407                 return;
2408         }
2409         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2410         if (!ppp) {
2411                 return;
2412         }
2413         PluginInfoPtr pip = ppp->_pip;
2414         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2415                 if (favorite_ui_state[pip->unique_id]) {
2416                         favorite_plugins_display.expand_row (path, true);
2417                 }
2418         }
2419 }
2420
2421 void
2422 Mixer_UI::sync_treeview_from_favorite_order ()
2423 {
2424         favorite_plugins_model->clear ();
2425         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2426                 PluginInfoPtr pip = (*i);
2427
2428                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2429                 newrow[favorite_plugins_columns.name] = (*i)->name;
2430                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2431                 if (!_session) {
2432                         continue;
2433                 }
2434
2435                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2436                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2437                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2438                         child_row[favorite_plugins_columns.name] = (*j).label;
2439                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2440                 }
2441                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2442                         if (favorite_ui_state[pip->unique_id]) {
2443                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2444                         }
2445                 }
2446         }
2447 }
2448
2449 void
2450 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2451 {
2452         using namespace Gtk::Menu_Helpers;
2453
2454         Gtk::Menu* m = manage (new Menu);
2455         MenuList& items = m->items ();
2456
2457         if (_selection.routes.empty()) {
2458                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
2459         } else {
2460                 items.push_back (MenuElem (_("Add at the top"),
2461                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
2462                 items.push_back (MenuElem (_("Add Pre-Fader"),
2463                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
2464                 items.push_back (MenuElem (_("Add Post-Fader"),
2465                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
2466                 items.push_back (MenuElem (_("Add at the end"),
2467                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
2468         }
2469
2470         items.push_back (SeparatorElem());
2471
2472         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
2473
2474         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2475         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
2476                 // we cannot currently delete AU presets
2477                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
2478                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
2479                 }
2480         }
2481
2482         m->popup (ev->button, ev->time);
2483 }
2484
2485 bool
2486 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
2487 {
2488         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
2489                 TreeModel::Path path;
2490                 TreeViewColumn* column;
2491                 int cellx, celly;
2492                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
2493                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2494                         if (selection) {
2495                                 selection->unselect_all();
2496                                 selection->select(path);
2497                         }
2498                 }
2499                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
2500                 if (ppp) {
2501                         popup_note_context_menu (ev);
2502                 }
2503         }
2504         return false;
2505 }
2506
2507
2508 PluginPresetPtr
2509 Mixer_UI::selected_plugin ()
2510 {
2511         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2512         if (!selection) {
2513                 return PluginPresetPtr();
2514         }
2515         Gtk::TreeModel::iterator iter = selection->get_selected();
2516         if (!iter) {
2517                 return PluginPresetPtr();
2518         }
2519         return (*iter)[favorite_plugins_columns.plugin];
2520 }
2521
2522 void
2523 Mixer_UI::add_selected_processor (ProcessorPosition pos)
2524 {
2525         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2526         if (ppp) {
2527                 add_favorite_processor (ppp, pos);
2528         }
2529 }
2530
2531 void
2532 Mixer_UI::delete_selected_preset ()
2533 {
2534         if (!_session) {
2535                 return;
2536         }
2537         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2538         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
2539                 return;
2540         }
2541         PluginPtr plugin = ppp->_pip->load (*_session);
2542         plugin->get_presets();
2543         plugin->remove_preset (ppp->_preset.label);
2544 }
2545
2546 void
2547 Mixer_UI::remove_selected_from_favorites ()
2548 {
2549         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2550         if (!ppp) {
2551                 return;
2552         }
2553         PluginManager::PluginStatusType status = PluginManager::Normal;
2554         PluginManager& manager (PluginManager::instance());
2555
2556         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2557         manager.save_statuses ();
2558 }
2559
2560 void
2561 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
2562 {
2563         TreeIter iter;
2564         if (!(iter = favorite_plugins_model->get_iter (path))) {
2565                 return;
2566         }
2567         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2568         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
2569 }
2570
2571 void
2572 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
2573 {
2574         if (!_session || _selection.routes.empty()) {
2575                 return;
2576         }
2577
2578         PluginInfoPtr pip = ppp->_pip;
2579         for (RouteUISelection::iterator i = _selection.routes.begin(); i != _selection.routes.end(); ++i) {
2580                 boost::shared_ptr<ARDOUR::Route> rt = (*i)->route();
2581                 if (!rt) { continue; }
2582
2583                 PluginPtr p = pip->load (*_session);
2584                 if (!p) { continue; }
2585
2586                 if (ppp->_preset.valid) {
2587                         p->load_preset (ppp->_preset);
2588                 }
2589
2590                 Route::ProcessorStreams err;
2591                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2592
2593                 switch (pos) {
2594                         case AddTop:
2595                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
2596                                 break;
2597                         case AddPreFader:
2598                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
2599                                 break;
2600                         case AddPostFader:
2601                                 {
2602                                         int idx = 0;
2603                                         int pos = 0;
2604                                         for (;;++idx) {
2605                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
2606                                                 if (!np) {
2607                                                         break;
2608                                                 }
2609                                                 if (!np->display_to_user()) {
2610                                                         continue;
2611                                                 }
2612                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
2613                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
2614                                                         break;
2615                                                 }
2616                                                 ++pos;
2617                                         }
2618                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
2619                                 }
2620                                 break;
2621                         case AddBottom:
2622                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
2623                                 break;
2624                 }
2625         }
2626 }
2627
2628 bool
2629 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
2630 {
2631         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
2632                 return false;
2633         }
2634
2635         // only allow to re-order top-level items
2636         TreePath src;
2637         if (TreePath::get_from_selection_data (data, src)) {
2638                 if (src.up() && src.up()) {
2639                         return false;
2640                 }
2641         }
2642
2643         // don't allow to drop as child-rows.
2644         Gtk::TreeModel::Path _dest = dest; // un const
2645         const bool is_child = _dest.up (); // explicit bool for clang
2646         if (!is_child || _dest.empty ()) {
2647                 return true;
2648         }
2649         return false;
2650 }
2651
2652 void
2653 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
2654 {
2655         if (data.get_target() != "PluginPresetPtr") {
2656                 return;
2657         }
2658         if (data.get_length() != sizeof (PluginPresetPtr)) {
2659                 return;
2660         }
2661         const void *d = data.get_data();
2662         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
2663
2664         PluginManager::PluginStatusType status = PluginManager::Favorite;
2665         PluginManager& manager (PluginManager::instance());
2666
2667         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2668         manager.save_statuses ();
2669 }
2670
2671 void
2672 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
2673 {
2674         /* call protected MixerActor:: method */
2675         vca_assign (vca);
2676 }
2677
2678 void
2679 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
2680 {
2681         /* call protected MixerActor:: method */
2682         vca_unassign (vca);
2683 }
2684
2685 void
2686 Mixer_UI::show_vca_slaves (boost::shared_ptr<VCA> vca)
2687 {
2688         boost::shared_ptr<VCA> v = spilled_vca.lock();
2689         if (v != vca) {
2690                 spilled_vca = vca;
2691                 show_vca_change (vca); /* EMIT SIGNAL */
2692                 if (vca) {
2693                         _group_tabs->hide ();
2694                 } else {
2695                         _group_tabs->show ();
2696                 }
2697                 redisplay_track_list ();
2698         }
2699 }
2700
2701 bool
2702 Mixer_UI::showing_vca_slaves_for (boost::shared_ptr<VCA> vca) const
2703 {
2704        return vca == spilled_vca.lock();
2705 }