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