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/midi_track.h"
  46 #include "ardour/plugin_manager.h"
  47 #include "ardour/route_group.h"
  48 #include "ardour/route_sorters.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 "ardour_ui.h"
  60 #include "prompter.h"
  61 #include "utils.h"
  62 #include "route_sorter.h"
  63 #include "actions.h"
  64 #include "gui_thread.h"
  65 #include "mixer_group_tabs.h"
  66 #include "timers.h"
  67 #include "ui_config.h"
  68 #include "vca_master_strip.h"
  69
  70 #include "i18n.h"
  71
  72 using namespace ARDOUR;
  73 using namespace ARDOUR_UI_UTILS;
  74 using namespace PBD;
  75 using namespace Gtk;
  76 using namespace Glib;
  77 using namespace Gtkmm2ext;
  78 using namespace std;
  79
  80 using PBD::atoi;
  81 using PBD::Unwinder;
  82
  83 Mixer_UI* Mixer_UI::_instance = 0;
  84
  85 Mixer_UI*
  86 Mixer_UI::instance ()
  87 {
  88         if (!_instance) {
  89                 _instance  = new Mixer_UI;
  90         }
  91
  92         return _instance;
  93 }
  94
  95 Mixer_UI::Mixer_UI ()
  96         : Tabbable (_content, _("Mixer"))
  97         , no_track_list_redisplay (false)
  98         , in_group_row_change (false)
  99         , track_menu (0)
 100         , _monitor_section (0)
 101         , _plugin_selector (0)
 102         , _strip_width (UIConfiguration::instance().get_default_narrow_ms() ? Narrow : Wide)
 103         , ignore_reorder (false)
 104         , _in_group_rebuild_or_clear (false)
 105         , _route_deletion_in_progress (false)
 106         , _following_editor_selection (false)
 107         , _maximised (false)
 108         , _show_mixer_list (true)
 109 {
 110         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_order_keys, this), gui_context());
 111
 112         /* bindings was already set in MixerActor constructor */
 113
 114         _content.set_data ("ardour-bindings", bindings);
 115
 116         scroller.set_can_default (true);
 117         // set_default (scroller);
 118
 119         scroller_base.set_flags (Gtk::CAN_FOCUS);
 120         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 121         scroller_base.set_name ("MixerWindow");
 122         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 123
 124         /* set up drag-n-drop */
 125         vector<TargetEntry> target_table;
 126         target_table.push_back (TargetEntry ("PluginFavoritePtr"));
 127         scroller_base.drag_dest_set (target_table);
 128         scroller_base.signal_drag_data_received().connect (sigc::mem_fun(*this, &Mixer_UI::scroller_drag_data_received));
 129
 130         // add as last item of strip packer
 131         strip_packer.pack_end (scroller_base, true, true);
 132
 133         _group_tabs = new MixerGroupTabs (this);
 134         VBox* b = manage (new VBox);
 135         b->pack_start (*_group_tabs, PACK_SHRINK);
 136         b->pack_start (strip_packer);
 137         b->show_all ();
 138
 139         scroller.add (*b);
 140         scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 141
 142         setup_track_display ();
 143
 144         group_model = ListStore::create (group_columns);
 145         group_display.set_model (group_model);
 146         group_display.append_column (_("Group"), group_columns.text);
 147         group_display.append_column (_("Show"), group_columns.visible);
 148         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 149         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 150         group_display.get_column (0)->set_expand(true);
 151         group_display.get_column (1)->set_expand(false);
 152         group_display.set_name ("EditGroupList");
 153         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 154         group_display.set_reorderable (true);
 155         group_display.set_headers_visible (true);
 156         group_display.set_rules_hint (true);
 157         group_display.set_can_focus(false);
 158
 159         /* name is directly editable */
 160
 161         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 162         name_cell->property_editable() = true;
 163         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 164
 165         /* use checkbox for the active column */
 166
 167         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 168         active_cell->property_activatable() = true;
 169         active_cell->property_radio() = false;
 170
 171         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 172         /* We use this to notice drag-and-drop reorders of the group list */
 173         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 174         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 175
 176         group_display_scroller.add (group_display);
 177         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 178
 179         HBox* route_group_display_button_box = manage (new HBox());
 180
 181         Button* route_group_add_button = manage (new Button ());
 182         Button* route_group_remove_button = manage (new Button ());
 183
 184         Widget* w;
 185
 186         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 187         w->show();
 188         route_group_add_button->add (*w);
 189
 190         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 191         w->show();
 192         route_group_remove_button->add (*w);
 193
 194         route_group_display_button_box->set_homogeneous (true);
 195
 196         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 197         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 198
 199         route_group_display_button_box->add (*route_group_add_button);
 200         route_group_display_button_box->add (*route_group_remove_button);
 201
 202         group_display_vbox.pack_start (group_display_scroller, true, true);
 203         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 204
 205         group_display_frame.set_name ("BaseFrame");
 206         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 207         group_display_frame.add (group_display_vbox);
 208
 209
 210         list<TargetEntry> target_list;
 211         target_list.push_back (TargetEntry ("PluginPresetPtr"));
 212
 213         favorite_plugins_model = PluginTreeStore::create (favorite_plugins_columns);
 214         favorite_plugins_display.set_model (favorite_plugins_model);
 215         favorite_plugins_display.append_column (_("Favorite Plugins"), favorite_plugins_columns.name);
 216         favorite_plugins_display.set_name ("EditGroupList");
 217         favorite_plugins_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 218         favorite_plugins_display.set_reorderable (false);
 219         favorite_plugins_display.set_headers_visible (true);
 220         favorite_plugins_display.set_rules_hint (true);
 221         favorite_plugins_display.set_can_focus (false);
 222         favorite_plugins_display.add_object_drag (favorite_plugins_columns.plugin.index(), "PluginFavoritePtr");
 223         favorite_plugins_display.set_drag_column (favorite_plugins_columns.name.index());
 224         favorite_plugins_display.add_drop_targets (target_list);
 225         favorite_plugins_display.signal_row_activated().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_activated));
 226         favorite_plugins_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_button_press), false);
 227         favorite_plugins_display.signal_drop.connect (sigc::mem_fun (*this, &Mixer_UI::plugin_drop));
 228         favorite_plugins_display.signal_row_expanded().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 229         favorite_plugins_display.signal_row_collapsed().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 230         favorite_plugins_model->signal_row_has_child_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::sync_treeview_favorite_ui_state));
 231
 232         favorite_plugins_scroller.add (favorite_plugins_display);
 233         favorite_plugins_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 234
 235         favorite_plugins_frame.set_name ("BaseFrame");
 236         favorite_plugins_frame.set_shadow_type (Gtk::SHADOW_IN);
 237         favorite_plugins_frame.add (favorite_plugins_scroller);
 238
 239         rhs_pane1.pack1 (favorite_plugins_frame, false, true);
 240         rhs_pane1.pack2 (track_display_frame);
 241         rhs_pane2.pack1 (rhs_pane1);
 242         rhs_pane2.pack2 (group_display_frame);
 243
 244         list_vpacker.pack_start (rhs_pane2, true, true);
 245
 246         vca_scroller.add (vca_packer);
 247         vca_scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 248
 249         inner_pane.pack1 (scroller);
 250         inner_pane.pack2 (vca_scroller);
 251
 252         global_hpacker.pack_start (inner_pane, true, true);
 253         global_hpacker.pack_start (out_packer, false, false);
 254
 255         list_hpane.pack1(list_vpacker, false, true);
 256         list_hpane.pack2(global_hpacker, true, false);
 257
 258         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 259                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 260         rhs_pane2.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 261                                                         static_cast<Gtk::Paned*> (&rhs_pane2)));
 262         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 263                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 264         inner_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 265                                                          static_cast<Gtk::Paned*> (&inner_pane)));
 266
 267         _content.pack_start (list_hpane, true, true);
 268
 269         update_title ();
 270
 271         route_group_display_button_box->show();
 272         route_group_add_button->show();
 273         route_group_remove_button->show();
 274
 275         _content.show ();
 276         _content.set_name ("MixerWindow");
 277
 278         global_hpacker.show();
 279         scroller.show();
 280         scroller_base.show();
 281         scroller_hpacker.show();
 282         mixer_scroller_vpacker.show();
 283         list_vpacker.show();
 284         group_display_button_label.show();
 285         group_display_button.show();
 286         group_display_scroller.show();
 287         favorite_plugins_scroller.show();
 288         group_display_vbox.show();
 289         group_display_frame.show();
 290         favorite_plugins_frame.show();
 291         rhs_pane1.show();
 292         rhs_pane2.show();
 293         strip_packer.show();
 294         inner_pane.show ();
 295         vca_scroller.show();
 296         vca_packer.show();
 297         out_packer.show();
 298         list_hpane.show();
 299         group_display.show();
 300         favorite_plugins_display.show();
 301
 302         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 303
 304 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 305         _plugin_selector = new PluginSelector (PluginManager::instance ());
 306 #else
 307 #error implement deferred Plugin-Favorite list
 308 #endif
 309         PluginManager::instance ().PluginListChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 310         PluginManager::instance ().PluginStatusesChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 311         ARDOUR::Plugin::PresetsChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 312 }
 313
 314 Mixer_UI::~Mixer_UI ()
 315 {
 316         if (_monitor_section) {
 317                 monitor_section_detached ();
 318                 delete _monitor_section;
 319         }
 320         delete _plugin_selector;
 321 }
 322
 323 void
 324 Mixer_UI::track_editor_selection ()
 325 {
 326         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 327 }
 328
 329 Gtk::Window*
 330 Mixer_UI::use_own_window (bool and_fill_it)
 331 {
 332         bool new_window = !own_window();
 333
 334         Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
 335
 336
 337         if (win && new_window) {
 338                 win->set_name ("MixerWindow");
 339                 ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Mixer"), this);
 340                 win->signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_scroll_event), false);
 341                 win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
 342                 win->set_data ("ardour-bindings", bindings);
 343                 update_title ();
 344         }
 345
 346         return win;
 347 }
 348
 349 void
 350 Mixer_UI::show_window ()
 351 {
 352         Tabbable::show_window ();
 353
 354         /* show/hide group tabs as required */
 355         parameter_changed ("show-group-tabs");
 356
 357         /* now reset each strips width so the right widgets are shown */
 358         MixerStrip* ms;
 359
 360         TreeModel::Children rows = track_model->children();
 361         TreeModel::Children::iterator ri;
 362
 363         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 364                 ms = (*ri)[track_columns.strip];
 365                 if (!ms) {
 366                         continue;
 367                 }
 368                 ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 369                 /* Fix visibility of mixer strip stuff */
 370                 ms->parameter_changed (X_("mixer-element-visibility"));
 371         }
 372
 373         /* force focus into main area */
 374         scroller_base.grab_focus ();
 375 }
 376
 377 void
 378 Mixer_UI::add_masters (VCAList& vcas)
 379 {
 380         for (VCAList::iterator v = vcas.begin(); v != vcas.end(); ++v) {
 381
 382                 VCAMasterStrip* vms = new VCAMasterStrip (_session, *v);
 383
 384                 TreeModel::Row row = *(track_model->append());
 385                 row[track_columns.text] = (*v)->name();
 386                 row[track_columns.visible] = true;
 387                 row[track_columns.vca] = vms;
 388         }
 389
 390         redisplay_track_list ();
 391 }
 392
 393 void
 394 Mixer_UI::remove_master (VCAMasterStrip* vms)
 395 {
 396 }
 397
 398 void
 399 Mixer_UI::add_strips (RouteList& routes)
 400 {
 401         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 402         uint32_t nroutes = 0;
 403
 404         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 405                 boost::shared_ptr<Route> r = (*it)[track_columns.route];
 406
 407                 if (!r) {
 408                         continue;
 409                 }
 410
 411                 nroutes++;
 412
 413                 if (r->order_key() == (routes.front()->order_key() + routes.size())) {
 414                         insert_iter = it;
 415                         break;
 416                 }
 417         }
 418
 419         if (nroutes) {
 420                 _selection.clear_routes ();
 421         }
 422
 423         MixerStrip* strip;
 424
 425         try {
 426                 no_track_list_redisplay = true;
 427                 track_display.set_model (Glib::RefPtr<ListStore>());
 428
 429                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 430                         boost::shared_ptr<Route> route = (*x);
 431
 432                         if (route->is_auditioner()) {
 433                                 continue;
 434                         }
 435
 436                         if (route->is_monitor()) {
 437
 438                                 if (!_monitor_section) {
 439                                         _monitor_section = new MonitorSection (_session);
 440
 441                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 442                                         if (mnode) {
 443                                                 _monitor_section->tearoff().set_state (*mnode);
 444                                         }
 445                                 }
 446
 447                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 448                                 _monitor_section->set_session (_session);
 449                                 _monitor_section->tearoff().show_all ();
 450
 451                                 _monitor_section->tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
 452                                 _monitor_section->tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
 453
 454                                 monitor_section_attached ();
 455
 456                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 457
 458                                 /* no regular strip shown for control out */
 459
 460                                 continue;
 461                         }
 462
 463                         strip = new MixerStrip (*this, _session, route);
 464                         strips.push_back (strip);
 465
 466                         UIConfiguration::instance().get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 467
 468                         if (strip->width_owner() != strip) {
 469                                 strip->set_width_enum (_strip_width, this);
 470                         }
 471
 472                         show_strip (strip);
 473
 474                         TreeModel::Row row = *(track_model->insert(insert_iter));
 475                         row[track_columns.text] = route->name();
 476                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 477                         row[track_columns.route] = route;
 478                         row[track_columns.strip] = strip;
 479                         row[track_columns.vca] = 0;
 480
 481                         if (nroutes != 0) {
 482                                 _selection.add (strip);
 483                         }
 484
 485                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 486
 487                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 488                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 489                 }
 490
 491         } catch (const std::exception& e) {
 492                 error << string_compose (_("Error adding GUI elements for new tracks/busses %1"), e.what()) << endmsg;
 493         }
 494
 495         no_track_list_redisplay = false;
 496         track_display.set_model (track_model);
 497
 498         sync_order_keys_from_treeview ();
 499         redisplay_track_list ();
 500 }
 501
 502 void
 503 Mixer_UI::deselect_all_strip_processors ()
 504 {
 505         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 506                 (*i)->deselect_all_processors();
 507         }
 508 }
 509
 510 void
 511 Mixer_UI::select_strip (MixerStrip& ms, bool add)
 512 {
 513         if (add) {
 514                 _selection.add (&ms);
 515         } else {
 516                 _selection.set (&ms);
 517         }
 518 }
 519
 520 void
 521 Mixer_UI::select_none ()
 522 {
 523         _selection.clear_routes();
 524         deselect_all_strip_processors();
 525 }
 526
 527 void
 528 Mixer_UI::delete_processors ()
 529 {
 530         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 531                 (*i)->delete_processors();
 532         }
 533 }
 534
 535
 536 void
 537 Mixer_UI::remove_strip (MixerStrip* strip)
 538 {
 539         if (_session && _session->deletion_in_progress()) {
 540                 /* its all being taken care of */
 541                 return;
 542         }
 543
 544         TreeModel::Children rows = track_model->children();
 545         TreeModel::Children::iterator ri;
 546         list<MixerStrip *>::iterator i;
 547
 548         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 549                 strips.erase (i);
 550         }
 551
 552         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 553                 if ((*ri)[track_columns.strip] == strip) {
 554                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 555                         track_model->erase (ri);
 556                         break;
 557                 }
 558         }
 559 }
 560
 561 void
 562 Mixer_UI::reset_remote_control_ids ()
 563 {
 564         if (Config->get_remote_model() == UserOrdered || !_session || _session->deletion_in_progress()) {
 565                 return;
 566         }
 567
 568         TreeModel::Children rows = track_model->children();
 569
 570         if (rows.empty()) {
 571                 return;
 572         }
 573
 574         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 575
 576         TreeModel::Children::iterator ri;
 577         bool rid_change = false;
 578         uint32_t rid = 1;
 579         uint32_t invisible_key = UINT32_MAX;
 580
 581         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 582
 583                 /* skip two special values */
 584
 585                 if (rid == Route::MasterBusRemoteControlID) {
 586                         rid++;
 587                 }
 588
 589                 if (rid == Route::MonitorBusRemoteControlID) {
 590                         rid++;
 591                 }
 592
 593                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 594                 bool visible = (*ri)[track_columns.visible];
 595
 596                 if (!route) {
 597                         continue;
 598                 }
 599
 600                 if (!route->is_master() && !route->is_monitor()) {
 601
 602                         uint32_t new_rid = (visible ? rid : invisible_key--);
 603
 604                         if (new_rid != route->remote_control_id()) {
 605                                 route->set_remote_control_id_explicit (new_rid);
 606                                 rid_change = true;
 607                         }
 608
 609                         if (visible) {
 610                                 rid++;
 611                         }
 612                 }
 613         }
 614
 615         if (rid_change) {
 616                 /* tell the world that we changed the remote control IDs */
 617                 _session->notify_remote_id_change ();
 618         }
 619 }
 620
 621 void
 622 Mixer_UI::sync_order_keys_from_treeview ()
 623 {
 624         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 625                 return;
 626         }
 627
 628         TreeModel::Children rows = track_model->children();
 629
 630         if (rows.empty()) {
 631                 return;
 632         }
 633
 634         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 635
 636         TreeModel::Children::iterator ri;
 637         bool changed = false;
 638         bool rid_change = false;
 639         uint32_t order = 0;
 640         uint32_t rid = 1;
 641         uint32_t invisible_key = UINT32_MAX;
 642
 643         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 644                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 645                 bool visible = (*ri)[track_columns.visible];
 646
 647                 if (!route) {
 648                         continue;
 649                 }
 650
 651                 uint32_t old_key = route->order_key ();
 652
 653                 if (order != old_key) {
 654                         route->set_order_key (order);
 655                         changed = true;
 656                 }
 657
 658                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 659
 660                         uint32_t new_rid = (visible ? rid : invisible_key--);
 661
 662                         if (new_rid != route->remote_control_id()) {
 663                                 route->set_remote_control_id_explicit (new_rid);
 664                                 rid_change = true;
 665                         }
 666
 667                         if (visible) {
 668                                 rid++;
 669                         }
 670
 671                 }
 672
 673                 ++order;
 674         }
 675
 676         if (changed) {
 677                 /* tell everyone that we changed the mixer sort keys */
 678                 _session->sync_order_keys ();
 679         }
 680
 681         if (rid_change) {
 682                 /* tell the world that we changed the remote control IDs */
 683                 _session->notify_remote_id_change ();
 684         }
 685 }
 686
 687 void
 688 Mixer_UI::sync_treeview_from_order_keys ()
 689 {
 690         if (!_session || _session->deletion_in_progress()) {
 691                 return;
 692         }
 693
 694         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from order keys.\n");
 695
 696         /* we could get here after either a change in the Mixer or Editor sort
 697          * order, but either way, the mixer order keys reflect the intended
 698          * order for the GUI, so reorder the treeview model to match it.
 699          */
 700
 701         vector<int> neworder;
 702         TreeModel::Children rows = track_model->children();
 703         uint32_t old_order = 0;
 704         bool changed = false;
 705
 706         if (rows.empty()) {
 707                 return;
 708         }
 709
 710         OrderingKeys sorted;
 711         uint32_t vca_cnt = 0;
 712         uint32_t max_route_order_key = 0;
 713
 714         /* count number of Routes in track_model (there may be some odd reason
 715            why this is not the same as the number in the session, but here we
 716            care about the track model.
 717         */
 718
 719         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri) {
 720                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 721                 if (route) {
 722                         max_route_order_key = max (route->order_key(), max_route_order_key);
 723                 }
 724         }
 725
 726         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 727                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 728                 if (!route) {
 729                         /* VCAs need to sort after all routes. We don't display
 730                          * them in the same place (March 2016), but we don't
 731                          * want them intermixed in the track_model
 732                          */
 733                         sorted.push_back (OrderKeys (old_order, max_route_order_key + ++vca_cnt));
 734                 } else {
 735                         sorted.push_back (OrderKeys (old_order, route->order_key ()));
 736                 }
 737         }
 738
 739         SortByNewDisplayOrder cmp;
 740
 741         sort (sorted.begin(), sorted.end(), cmp);
 742         neworder.assign (sorted.size(), 0);
 743
 744         uint32_t n = 0;
 745
 746         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 747
 748                 neworder[n] = sr->old_display_order;
 749
 750                 if (sr->old_display_order != n) {
 751                         changed = true;
 752                 }
 753
 754                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order from %1 to %2\n",
 755                                                                sr->old_display_order, n));
 756         }
 757
 758         if (changed) {
 759                 Unwinder<bool> uw (ignore_reorder, true);
 760                 track_model->reorder (neworder);
 761         }
 762
 763         redisplay_track_list ();
 764 }
 765
 766 void
 767 Mixer_UI::follow_editor_selection ()
 768 {
 769         if (_following_editor_selection) {
 770                 return;
 771         }
 772
 773         _following_editor_selection = true;
 774         _selection.block_routes_changed (true);
 775
 776         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 777
 778         _selection.clear_routes ();
 779
 780         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 781                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 782                 if (rtav) {
 783                         MixerStrip* ms = strip_by_route (rtav->route());
 784                         if (ms) {
 785                                 _selection.add (ms);
 786                         }
 787                 }
 788         }
 789
 790         _following_editor_selection = false;
 791         _selection.block_routes_changed (false);
 792 }
 793
 794
 795 MixerStrip*
 796 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 797 {
 798         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 799                 if ((*i)->route() == r) {
 800                         return (*i);
 801                 }
 802         }
 803
 804         return 0;
 805 }
 806
 807 bool
 808 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 809 {
 810         if (ev->button == 1) {
 811                 if (_selection.selected (strip)) {
 812                         /* primary-click: toggle selection state of strip */
 813                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 814                                 _selection.remove (strip);
 815                         } else if (_selection.routes.size() > 1) {
 816                                 /* de-select others */
 817                                 _selection.set (strip);
 818                         }
 819                 } else {
 820                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 821                                 _selection.add (strip);
 822                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 823
 824                                 if (!_selection.selected(strip)) {
 825
 826                                         /* extend selection */
 827
 828                                         vector<MixerStrip*> tmp;
 829                                         bool accumulate = false;
 830                                         bool found_another = false;
 831
 832                                         tmp.push_back (strip);
 833
 834                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 835                                                 if ((*i) == strip) {
 836                                                         /* hit clicked strip, start accumulating till we hit the first
 837                                                            selected strip
 838                                                         */
 839                                                         if (accumulate) {
 840                                                                 /* done */
 841                                                                 break;
 842                                                         } else {
 843                                                                 accumulate = true;
 844                                                         }
 845                                                 } else if (_selection.selected (*i)) {
 846                                                         /* hit selected strip. if currently accumulating others,
 847                                                            we're done. if not accumulating others, start doing so.
 848                                                         */
 849                                                         found_another = true;
 850                                                         if (accumulate) {
 851                                                                 /* done */
 852                                                                 break;
 853                                                         } else {
 854                                                                 accumulate = true;
 855                                                         }
 856                                                 } else {
 857                                                         if (accumulate) {
 858                                                                 tmp.push_back (*i);
 859                                                         }
 860                                                 }
 861                                         }
 862
 863                                         if (found_another) {
 864                                                 for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 865                                                         _selection.add (*i);
 866                                                 }
 867                                         } else
 868                                                 _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
 869                                 }
 870
 871                         } else {
 872                                 _selection.set (strip);
 873                         }
 874                 }
 875         }
 876
 877         return true;
 878 }
 879
 880 void
 881 Mixer_UI::set_session (Session* sess)
 882 {
 883         SessionHandlePtr::set_session (sess);
 884
 885         if (_plugin_selector) {
 886                 _plugin_selector->set_session (_session);
 887         }
 888
 889         _group_tabs->set_session (sess);
 890
 891         if (!_session) {
 892                 return;
 893         }
 894
 895         refill_favorite_plugins();
 896
 897         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 898         set_state (*node, 0);
 899
 900         update_title ();
 901
 902         initial_track_display ();
 903
 904         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 905         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 906         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 907         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 908         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 909         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 910         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 911
 912         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_masters, this, _1), gui_context());
 913
 914         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 915
 916         route_groups_changed ();
 917
 918         if (_visible) {
 919                 show_window();
 920         }
 921         start_updating ();
 922 }
 923
 924 void
 925 Mixer_UI::session_going_away ()
 926 {
 927         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 928
 929         _in_group_rebuild_or_clear = true;
 930         group_model->clear ();
 931         _in_group_rebuild_or_clear = false;
 932
 933         _selection.clear ();
 934         track_model->clear ();
 935
 936         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 937                 delete (*i);
 938         }
 939
 940         if (_monitor_section) {
 941                 _monitor_section->tearoff().hide_visible ();
 942         }
 943
 944         monitor_section_detached ();
 945
 946         strips.clear ();
 947
 948         stop_updating ();
 949
 950         SessionHandlePtr::session_going_away ();
 951
 952         _session = 0;
 953         update_title ();
 954 }
 955
 956 void
 957 Mixer_UI::track_visibility_changed (std::string const & path)
 958 {
 959         if (_session && _session->deletion_in_progress()) {
 960                 return;
 961         }
 962
 963         TreeIter iter;
 964
 965         if ((iter = track_model->get_iter (path))) {
 966                 MixerStrip* strip = (*iter)[track_columns.strip];
 967                 if (strip) {
 968                         bool visible = (*iter)[track_columns.visible];
 969
 970                         if (strip->set_marked_for_display (!visible)) {
 971                                 update_track_visibility ();
 972                         }
 973                 }
 974         }
 975 }
 976
 977 void
 978 Mixer_UI::update_track_visibility ()
 979 {
 980         TreeModel::Children rows = track_model->children();
 981         TreeModel::Children::iterator i;
 982
 983         {
 984                 Unwinder<bool> uw (no_track_list_redisplay, true);
 985
 986                 for (i = rows.begin(); i != rows.end(); ++i) {
 987                         MixerStrip *strip = (*i)[track_columns.strip];
 988                         if (strip) {
 989                                 (*i)[track_columns.visible] = strip->marked_for_display ();
 990                         }
 991                 }
 992
 993                 /* force route order keys catch up with visibility changes
 994                  */
 995
 996                 sync_order_keys_from_treeview ();
 997         }
 998
 999         redisplay_track_list ();
1000 }
1001
1002 void
1003 Mixer_UI::show_strip (MixerStrip* ms)
1004 {
1005         TreeModel::Children rows = track_model->children();
1006         TreeModel::Children::iterator i;
1007
1008         for (i = rows.begin(); i != rows.end(); ++i) {
1009
1010                 MixerStrip* strip = (*i)[track_columns.strip];
1011                 if (strip == ms) {
1012                         (*i)[track_columns.visible] = true;
1013                         redisplay_track_list ();
1014                         break;
1015                 }
1016         }
1017 }
1018
1019 void
1020 Mixer_UI::hide_strip (MixerStrip* ms)
1021 {
1022         TreeModel::Children rows = track_model->children();
1023         TreeModel::Children::iterator i;
1024
1025         for (i = rows.begin(); i != rows.end(); ++i) {
1026
1027                 MixerStrip* strip = (*i)[track_columns.strip];
1028                 if (strip == ms) {
1029                         (*i)[track_columns.visible] = false;
1030                         redisplay_track_list ();
1031                         break;
1032                 }
1033         }
1034 }
1035
1036 gint
1037 Mixer_UI::start_updating ()
1038 {
1039     fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
1040     return 0;
1041 }
1042
1043 gint
1044 Mixer_UI::stop_updating ()
1045 {
1046     fast_screen_update_connection.disconnect();
1047     return 0;
1048 }
1049
1050 void
1051 Mixer_UI::fast_update_strips ()
1052 {
1053         if (_content.is_mapped () && _session) {
1054                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1055                         (*i)->fast_update ();
1056                 }
1057         }
1058 }
1059
1060 void
1061 Mixer_UI::set_all_strips_visibility (bool yn)
1062 {
1063         TreeModel::Children rows = track_model->children();
1064         TreeModel::Children::iterator i;
1065
1066         {
1067                 Unwinder<bool> uw (no_track_list_redisplay, true);
1068
1069                 for (i = rows.begin(); i != rows.end(); ++i) {
1070
1071                         TreeModel::Row row = (*i);
1072                         MixerStrip* strip = row[track_columns.strip];
1073
1074                         if (!strip) {
1075                                 continue;
1076                         }
1077
1078                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1079                                 continue;
1080                         }
1081
1082                         (*i)[track_columns.visible] = yn;
1083                 }
1084         }
1085
1086         redisplay_track_list ();
1087 }
1088
1089
1090 void
1091 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
1092 {
1093         TreeModel::Children rows = track_model->children();
1094         TreeModel::Children::iterator i;
1095
1096         {
1097                 Unwinder<bool> uw (no_track_list_redisplay, true);
1098
1099                 for (i = rows.begin(); i != rows.end(); ++i) {
1100                         TreeModel::Row row = (*i);
1101                         MixerStrip* strip = row[track_columns.strip];
1102
1103                         if (!strip) {
1104                                 continue;
1105                         }
1106
1107                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1108                                 continue;
1109                         }
1110
1111                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
1112                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
1113
1114                         switch (tracks) {
1115                         case 0:
1116                                 (*i)[track_columns.visible] = yn;
1117                                 break;
1118
1119                         case 1:
1120                                 if (at) { /* track */
1121                                         (*i)[track_columns.visible] = yn;
1122                                 }
1123                                 break;
1124
1125                         case 2:
1126                                 if (!at && !mt) { /* bus */
1127                                         (*i)[track_columns.visible] = yn;
1128                                 }
1129                                 break;
1130
1131                         case 3:
1132                                 if (mt) { /* midi-track */
1133                                         (*i)[track_columns.visible] = yn;
1134                                 }
1135                                 break;
1136                         }
1137                 }
1138         }
1139
1140         redisplay_track_list ();
1141 }
1142
1143 void
1144 Mixer_UI::hide_all_routes ()
1145 {
1146         set_all_strips_visibility (false);
1147 }
1148
1149 void
1150 Mixer_UI::show_all_routes ()
1151 {
1152         set_all_strips_visibility (true);
1153 }
1154
1155 void
1156 Mixer_UI::show_all_audiobus ()
1157 {
1158         set_all_audio_midi_visibility (2, true);
1159 }
1160 void
1161 Mixer_UI::hide_all_audiobus ()
1162 {
1163         set_all_audio_midi_visibility (2, false);
1164 }
1165
1166 void
1167 Mixer_UI::show_all_audiotracks()
1168 {
1169         set_all_audio_midi_visibility (1, true);
1170 }
1171 void
1172 Mixer_UI::hide_all_audiotracks ()
1173 {
1174         set_all_audio_midi_visibility (1, false);
1175 }
1176
1177 void
1178 Mixer_UI::show_all_miditracks()
1179 {
1180         set_all_audio_midi_visibility (3, true);
1181 }
1182 void
1183 Mixer_UI::hide_all_miditracks ()
1184 {
1185         set_all_audio_midi_visibility (3, false);
1186 }
1187
1188
1189 void
1190 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1191 {
1192         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1193         sync_order_keys_from_treeview ();
1194 }
1195
1196 void
1197 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1198 {
1199         /* this happens as the second step of a DnD within the treeview as well
1200            as when a row/route is actually deleted.
1201
1202            if it was a deletion then we have to force a redisplay because
1203            order keys may not have changed.
1204         */
1205
1206         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1207         sync_order_keys_from_treeview ();
1208
1209         if (_route_deletion_in_progress) {
1210                 redisplay_track_list ();
1211         }
1212 }
1213
1214 void
1215 Mixer_UI::redisplay_track_list ()
1216 {
1217         TreeModel::Children rows = track_model->children();
1218         TreeModel::Children::iterator i;
1219
1220         if (no_track_list_redisplay) {
1221                 return;
1222         }
1223
1224         container_clear (vca_packer);
1225
1226         for (i = rows.begin(); i != rows.end(); ++i) {
1227
1228                 VCAMasterStrip* vms = (*i)[track_columns.vca];
1229
1230                 if (vms) {
1231                         vca_packer.pack_start (*vms, false, false);
1232                         vms->show ();
1233                         continue;
1234                 }
1235
1236                 MixerStrip* strip = (*i)[track_columns.strip];
1237
1238                 if (!strip) {
1239                         /* we're in the middle of changing a row, don't worry */
1240                         continue;
1241                 }
1242
1243                 bool const visible = (*i)[track_columns.visible];
1244
1245                 if (visible) {
1246                         strip->set_gui_property ("visible", true);
1247
1248                         if (strip->packed()) {
1249
1250                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1251                                         out_packer.reorder_child (*strip, -1);
1252
1253                                 } else {
1254                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1255                                 }
1256
1257                         } else {
1258
1259                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1260                                         out_packer.pack_start (*strip, false, false);
1261                                 } else {
1262                                         strip_packer.pack_start (*strip, false, false);
1263                                 }
1264                                 strip->set_packed (true);
1265                         }
1266
1267                 } else {
1268
1269                         strip->set_gui_property ("visible", false);
1270
1271                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1272                                 /* do nothing, these cannot be hidden */
1273                         } else {
1274                                 if (strip->packed()) {
1275                                         strip_packer.remove (*strip);
1276                                         strip->set_packed (false);
1277                                 }
1278                         }
1279                 }
1280         }
1281
1282         _group_tabs->set_dirty ();
1283 }
1284
1285 void
1286 Mixer_UI::strip_width_changed ()
1287 {
1288         _group_tabs->set_dirty ();
1289
1290 #ifdef __APPLE__
1291         TreeModel::Children rows = track_model->children();
1292         TreeModel::Children::iterator i;
1293         long order;
1294
1295         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1296                 MixerStrip* strip = (*i)[track_columns.strip];
1297
1298                 if (strip == 0) {
1299                         continue;
1300                 }
1301
1302                 bool visible = (*i)[track_columns.visible];
1303
1304                 if (visible) {
1305                         strip->queue_draw();
1306                 }
1307         }
1308 #endif
1309
1310 }
1311
1312 void
1313 Mixer_UI::initial_track_display ()
1314 {
1315         boost::shared_ptr<RouteList> routes = _session->get_routes();
1316         RouteList copy (*routes);
1317         ARDOUR::SignalOrderRouteSorter sorter;
1318
1319         copy.sort (sorter);
1320
1321         {
1322                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1323                 Unwinder<bool> uw2 (ignore_reorder, true);
1324
1325                 track_model->clear ();
1326                 VCAList vcas = _session->vca_manager().vcas();
1327                 add_masters (vcas);
1328                 add_strips (copy);
1329         }
1330
1331         _session->sync_order_keys ();
1332
1333         redisplay_track_list ();
1334 }
1335
1336 void
1337 Mixer_UI::show_track_list_menu ()
1338 {
1339         if (track_menu == 0) {
1340                 build_track_menu ();
1341         }
1342
1343         track_menu->popup (1, gtk_get_current_event_time());
1344 }
1345
1346 bool
1347 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1348 {
1349         if (Keyboard::is_context_menu_event (ev)) {
1350                 show_track_list_menu ();
1351                 return true;
1352         }
1353
1354         return false;
1355 }
1356
1357 void
1358 Mixer_UI::build_track_menu ()
1359 {
1360         using namespace Menu_Helpers;
1361         using namespace Gtk;
1362
1363         track_menu = new Menu;
1364         track_menu->set_name ("ArdourContextMenu");
1365         MenuList& items = track_menu->items();
1366
1367         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1368         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1369         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1370         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1371         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1372         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1373         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1374         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1375
1376 }
1377
1378 void
1379 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1380 {
1381         if (!what_changed.contains (ARDOUR::Properties::name)) {
1382                 return;
1383         }
1384
1385         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1386
1387         TreeModel::Children rows = track_model->children();
1388         TreeModel::Children::iterator i;
1389
1390         for (i = rows.begin(); i != rows.end(); ++i) {
1391                 if ((*i)[track_columns.strip] == mx) {
1392                         (*i)[track_columns.text] = mx->route()->name();
1393                         return;
1394                 }
1395         }
1396
1397         error << _("track display list item for renamed strip not found!") << endmsg;
1398 }
1399
1400 bool
1401 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1402 {
1403         TreeModel::Path path;
1404         TreeViewColumn* column;
1405         int cellx;
1406         int celly;
1407
1408         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1409                 _group_tabs->get_menu(0)->popup (1, ev->time);
1410                 return true;
1411         }
1412
1413         TreeIter iter = group_model->get_iter (path);
1414         if (!iter) {
1415                 _group_tabs->get_menu(0)->popup (1, ev->time);
1416                 return true;
1417         }
1418
1419         RouteGroup* group = (*iter)[group_columns.group];
1420
1421         if (Keyboard::is_context_menu_event (ev)) {
1422                 _group_tabs->get_menu(group)->popup (1, ev->time);
1423                 return true;
1424         }
1425
1426         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1427         case 0:
1428                 if (Keyboard::is_edit_event (ev)) {
1429                         if (group) {
1430                                 // edit_route_group (group);
1431 #ifdef __APPLE__
1432                                 group_display.queue_draw();
1433 #endif
1434                                 return true;
1435                         }
1436                 }
1437                 break;
1438
1439         case 1:
1440         {
1441                 bool visible = (*iter)[group_columns.visible];
1442                 (*iter)[group_columns.visible] = !visible;
1443 #ifdef __APPLE__
1444                 group_display.queue_draw();
1445 #endif
1446                 return true;
1447         }
1448
1449         default:
1450                 break;
1451         }
1452
1453         return false;
1454  }
1455
1456 void
1457 Mixer_UI::activate_all_route_groups ()
1458 {
1459         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1460 }
1461
1462 void
1463 Mixer_UI::disable_all_route_groups ()
1464 {
1465         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1466 }
1467
1468 void
1469 Mixer_UI::route_groups_changed ()
1470 {
1471         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1472
1473         _in_group_rebuild_or_clear = true;
1474
1475         /* just rebuild the while thing */
1476
1477         group_model->clear ();
1478
1479 #if 0
1480         /* this is currently not used,
1481          * Mixer_UI::group_display_button_press() has a case for it,
1482          * and a commented edit_route_group() but that's n/a since 2011.
1483          *
1484          * This code is left as reminder that
1485          * row[group_columns.group] = 0 has special meaning.
1486          */
1487         {
1488                 TreeModel::Row row;
1489                 row = *(group_model->append());
1490                 row[group_columns.visible] = true;
1491                 row[group_columns.text] = (_("-all-"));
1492                 row[group_columns.group] = 0;
1493         }
1494 #endif
1495
1496         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1497
1498         _group_tabs->set_dirty ();
1499         _in_group_rebuild_or_clear = false;
1500 }
1501
1502 void
1503 Mixer_UI::new_route_group ()
1504 {
1505         RouteList rl;
1506
1507         _group_tabs->run_new_group_dialog (rl);
1508 }
1509
1510 void
1511 Mixer_UI::remove_selected_route_group ()
1512 {
1513         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1514         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1515
1516         if (rows.empty()) {
1517                 return;
1518         }
1519
1520         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1521         TreeIter iter;
1522
1523         /* selection mode is single, so rows.begin() is it */
1524
1525         if ((iter = group_model->get_iter (*i))) {
1526
1527                 RouteGroup* rg = (*iter)[group_columns.group];
1528
1529                 if (rg) {
1530                         _session->remove_route_group (*rg);
1531                 }
1532         }
1533 }
1534
1535 void
1536 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1537 {
1538         if (in_group_row_change) {
1539                 return;
1540         }
1541
1542         /* force an update of any mixer strips that are using this group,
1543            otherwise mix group names don't change in mixer strips
1544         */
1545
1546         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1547                 if ((*i)->route_group() == group) {
1548                         (*i)->route_group_changed();
1549                 }
1550         }
1551
1552         TreeModel::iterator i;
1553         TreeModel::Children rows = group_model->children();
1554         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1555
1556         in_group_row_change = true;
1557
1558         for (i = rows.begin(); i != rows.end(); ++i) {
1559                 if ((*i)[group_columns.group] == group) {
1560                         (*i)[group_columns.visible] = !group->is_hidden ();
1561                         (*i)[group_columns.text] = group->name ();
1562                         break;
1563                 }
1564         }
1565
1566         in_group_row_change = false;
1567
1568         if (change.contains (Properties::name)) {
1569                 _group_tabs->set_dirty ();
1570         }
1571
1572         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1573                 if ((*j)->route_group() == group) {
1574                         if (group->is_hidden ()) {
1575                                 hide_strip (*j);
1576                         } else {
1577                                 show_strip (*j);
1578                         }
1579                 }
1580         }
1581 }
1582
1583 void
1584 Mixer_UI::show_mixer_list (bool yn)
1585 {
1586         if (yn) {
1587                 list_vpacker.show ();
1588
1589                 //if user wants to show the pane, we should make sure that it is wide enough to be visible
1590                 int width = list_hpane.get_position();
1591                 if (width < 40)
1592                         list_hpane.set_position(40);
1593         } else {
1594                 list_vpacker.hide ();
1595         }
1596
1597         _show_mixer_list = yn;
1598 }
1599
1600 void
1601 Mixer_UI::show_monitor_section (bool yn)
1602 {
1603         if (!monitor_section()) {
1604                 return;
1605         }
1606         if (monitor_section()->tearoff().torn_off()) {
1607                 return;
1608         }
1609
1610         if (yn) {
1611                 monitor_section()->tearoff().show();
1612         } else {
1613                 monitor_section()->tearoff().hide();
1614         }
1615 }
1616
1617 void
1618 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1619 {
1620         RouteGroup* group;
1621         TreeIter iter;
1622
1623         if ((iter = group_model->get_iter (path))) {
1624
1625                 if ((group = (*iter)[group_columns.group]) == 0) {
1626                         return;
1627                 }
1628
1629                 if (new_text != group->name()) {
1630                         group->set_name (new_text);
1631                 }
1632         }
1633 }
1634
1635 void
1636 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1637 {
1638         RouteGroup* group;
1639
1640         if (in_group_row_change) {
1641                 return;
1642         }
1643
1644         if ((group = (*iter)[group_columns.group]) == 0) {
1645                 return;
1646         }
1647
1648         std::string name = (*iter)[group_columns.text];
1649
1650         if (name != group->name()) {
1651                 group->set_name (name);
1652         }
1653
1654         bool hidden = !(*iter)[group_columns.visible];
1655
1656         if (hidden != group->is_hidden ()) {
1657                 group->set_hidden (hidden, this);
1658         }
1659 }
1660
1661 /** Called when a group model row is deleted, but also when the model is
1662  *  reordered by a user drag-and-drop; the latter is what we are
1663  *  interested in here.
1664  */
1665 void
1666 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1667 {
1668         if (_in_group_rebuild_or_clear) {
1669                 return;
1670         }
1671
1672         /* Re-write the session's route group list so that the new order is preserved */
1673
1674         list<RouteGroup*> new_list;
1675
1676         Gtk::TreeModel::Children children = group_model->children();
1677         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1678                 RouteGroup* g = (*i)[group_columns.group];
1679                 if (g) {
1680                         new_list.push_back (g);
1681                 }
1682         }
1683
1684         _session->reorder_route_groups (new_list);
1685 }
1686
1687
1688 void
1689 Mixer_UI::add_route_group (RouteGroup* group)
1690 {
1691         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1692         bool focus = false;
1693
1694         in_group_row_change = true;
1695
1696         TreeModel::Row row = *(group_model->append());
1697         row[group_columns.visible] = !group->is_hidden ();
1698         row[group_columns.group] = group;
1699         if (!group->name().empty()) {
1700                 row[group_columns.text] = group->name();
1701         } else {
1702                 row[group_columns.text] = _("unnamed");
1703                 focus = true;
1704         }
1705
1706         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1707
1708         if (focus) {
1709                 TreeViewColumn* col = group_display.get_column (0);
1710                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1711                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1712         }
1713
1714         _group_tabs->set_dirty ();
1715
1716         in_group_row_change = false;
1717 }
1718
1719 bool
1720 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1721 {
1722         using namespace Menu_Helpers;
1723
1724         if (Keyboard::is_context_menu_event (ev)) {
1725                 ARDOUR_UI::instance()->add_route ();
1726                 return true;
1727         }
1728
1729         return false;
1730 }
1731
1732 void
1733 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
1734 {
1735         printf ("Mixer_UI::scroller_drag_data_received\n");
1736         if (data.get_target() != "PluginFavoritePtr") {
1737                 context->drag_finish (false, false, time);
1738                 return;
1739         }
1740
1741         const void * d = data.get_data();
1742         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
1743
1744         PluginPresetList nfos;
1745         TreeView* source;
1746         tv->get_object_drag_data (nfos, &source);
1747
1748         Route::ProcessorList pl;
1749         bool ok = false;
1750
1751         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1752                 PluginPresetPtr ppp = (*i);
1753                 PluginInfoPtr pip = ppp->_pip;
1754                 if (!pip->is_instrument ()) {
1755                         continue;
1756                 }
1757                 ARDOUR_UI::instance()->session_add_midi_track (NULL, 1, _("MIDI"), Config->get_strict_io (), pip, ppp->_preset.valid ? &ppp->_preset : 0);
1758                 ok = true;
1759         }
1760
1761         context->drag_finish (ok, false, time);
1762 }
1763
1764 void
1765 Mixer_UI::set_strip_width (Width w, bool save)
1766 {
1767         _strip_width = w;
1768
1769         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1770                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1771         }
1772 }
1773
1774
1775 struct PluginStateSorter {
1776 public:
1777         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
1778                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
1779                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
1780                 if (aiter != _user.end() && biter != _user.end()) {
1781                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
1782                 }
1783                 if (aiter != _user.end()) {
1784                         return true;
1785                 }
1786                 if (biter != _user.end()) {
1787                         return false;
1788                 }
1789                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
1790         }
1791
1792         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
1793 private:
1794         std::list<std::string> _user;
1795 };
1796
1797 int
1798 Mixer_UI::set_state (const XMLNode& node, int version)
1799 {
1800         XMLProperty const * prop;
1801
1802         Tabbable::set_state (node, version);
1803
1804         if ((prop = node.property ("narrow-strips"))) {
1805                 if (string_is_affirmative (prop->value())) {
1806                         set_strip_width (Narrow);
1807                 } else {
1808                         set_strip_width (Wide);
1809                 }
1810         }
1811
1812         if ((prop = node.property ("show-mixer"))) {
1813                 if (string_is_affirmative (prop->value())) {
1814                        _visible = true;
1815                 }
1816         }
1817
1818         if ((prop = node.property ("maximised"))) {
1819                 bool yn = string_is_affirmative (prop->value());
1820                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
1821                 assert (act);
1822                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1823                 bool fs = tact && tact->get_active();
1824                 if (yn ^ fs) {
1825                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
1826                 }
1827         }
1828
1829         if ((prop = node.property ("show-mixer-list"))) {
1830                 bool yn = string_is_affirmative (prop->value());
1831                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
1832                 assert (act);
1833                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1834
1835                 /* do it twice to force the change */
1836                 tact->set_active (!yn);
1837                 tact->set_active (yn);
1838         }
1839
1840
1841         XMLNode* plugin_order;
1842         if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
1843                 store_current_favorite_order ();
1844                 std::list<string> order;
1845                 const XMLNodeList& kids = plugin_order->children("PluginInfo");
1846                 XMLNodeConstIterator i;
1847                 for (i = kids.begin(); i != kids.end(); ++i) {
1848                         if ((prop = (*i)->property ("unique-id"))) {
1849                                 std::string unique_id = prop->value();
1850                                 order.push_back (unique_id);
1851                                 if ((prop = (*i)->property ("expanded"))) {
1852                                         favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
1853                                 }
1854                         }
1855                 }
1856                 PluginStateSorter cmp (order);
1857                 favorite_order.sort (cmp);
1858                 sync_treeview_from_favorite_order ();
1859         }
1860         return 0;
1861 }
1862
1863 XMLNode&
1864 Mixer_UI::get_state ()
1865 {
1866         XMLNode* node = new XMLNode (X_("Mixer"));
1867         char buf[128];
1868
1869         node->add_child_nocopy (Tabbable::get_state());
1870
1871         snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (const_cast<GtkPaned*>(static_cast<const Paned*>(&rhs_pane1)->gobj())));
1872         node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
1873         snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (const_cast<GtkPaned*>(static_cast<const Paned*>(&rhs_pane2)->gobj())));
1874         node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
1875         snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (const_cast<GtkPaned*>(static_cast<const Paned*>(&list_hpane)->gobj())));
1876         node->add_property(X_("mixer-list-hpane-pos"), string(buf));
1877         snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (const_cast<GtkPaned*>(static_cast<const Paned*>(&inner_pane)->gobj())));
1878         node->add_property(X_("mixer-inner-pane-pos"), string(buf));
1879
1880         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1881         node->add_property ("show-mixer", _visible ? "yes" : "no");
1882         node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
1883         node->add_property ("maximised", _maximised ? "yes" : "no");
1884
1885         store_current_favorite_order ();
1886         XMLNode* plugin_order = new XMLNode ("PluginOrder");
1887         int cnt = 0;
1888         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
1889                 XMLNode* p = new XMLNode ("PluginInfo");
1890                 p->add_property ("sort", cnt);
1891                 p->add_property ("unique-id", (*i)->unique_id);
1892                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
1893                         p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
1894                 }
1895                 plugin_order->add_child_nocopy (*p);
1896         }
1897         node->add_child_nocopy (*plugin_order);
1898
1899         return *node;
1900 }
1901
1902 void
1903 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1904 {
1905         int pos;
1906         XMLProperty* prop = 0;
1907         XMLNode* geometry = ARDOUR_UI::instance()->mixer_settings();
1908         int height = default_height;
1909         static bool done[4] = { false, false, false, false };
1910
1911         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1912
1913                 if (done[0]) {
1914                         return;
1915                 }
1916
1917                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1918                         pos = height / 3;
1919                 } else {
1920                         pos = atoi (prop->value());
1921                 }
1922
1923                 if ((done[0] = (GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos))) {
1924                         rhs_pane1.set_position (pos);
1925                 }
1926
1927         } else if (which == static_cast<Gtk::Paned*> (&rhs_pane2)) {
1928                 if (done[1]) {
1929                         return;
1930                 }
1931
1932                 if (!geometry || (prop = geometry->property("mixer-rhs-pane2-pos")) == 0) {
1933                         pos = 2 * height / 3;
1934                 } else {
1935                         pos = atoi (prop->value());
1936                 }
1937
1938                 if ((done[1] = (GTK_WIDGET(rhs_pane2.gobj())->allocation.height > pos))) {
1939                         rhs_pane2.set_position (pos);
1940                 }
1941         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1942
1943                 if (done[2]) {
1944                         return;
1945                 }
1946
1947                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1948                         pos = std::max ((float)100, rintf ((float) 125 * UIConfiguration::instance().get_ui_scale()));
1949                 } else {
1950                         pos = max (36, atoi (prop->value ()));
1951                 }
1952
1953                 if ((done[2] = (GTK_WIDGET(list_hpane.gobj())->allocation.width > pos))) {
1954                         list_hpane.set_position (pos);
1955                 }
1956         } else if (which == static_cast<Gtk::Paned*> (&inner_pane)) {
1957
1958                 if (done[3]) {
1959                         return;
1960                 }
1961
1962                 if (!geometry || (prop = geometry->property("mixer-inner-pane-pos")) == 0) {
1963                         cerr << "using default value\n";
1964                         pos = std::max ((float)100, rintf ((float) 125 * UIConfiguration::instance().get_ui_scale()));
1965                 } else {
1966                         cerr << "using " << prop->value() << endl;
1967                         pos = max (36, atoi (prop->value ()));
1968                 }
1969
1970                 cerr << "Setting inner pane pos to " << pos << endl;
1971
1972                 if ((done[3] = (GTK_WIDGET(inner_pane.gobj())->allocation.width > pos))) {
1973                         inner_pane.set_position (pos);
1974                 }
1975         }
1976 }
1977
1978 void
1979 Mixer_UI::scroll_left ()
1980 {
1981         if (!scroller.get_hscrollbar()) return;
1982         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1983         /* stupid GTK: can't rely on clamping across versions */
1984         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1985 }
1986
1987 void
1988 Mixer_UI::scroll_right ()
1989 {
1990         if (!scroller.get_hscrollbar()) return;
1991         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1992         /* stupid GTK: can't rely on clamping across versions */
1993         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1994 }
1995
1996 bool
1997 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1998 {
1999         switch (ev->direction) {
2000         case GDK_SCROLL_LEFT:
2001                 scroll_left ();
2002                 return true;
2003         case GDK_SCROLL_UP:
2004                 if (ev->state & Keyboard::TertiaryModifier) {
2005                         scroll_left ();
2006                         return true;
2007                 }
2008                 return false;
2009
2010         case GDK_SCROLL_RIGHT:
2011                 scroll_right ();
2012                 return true;
2013
2014         case GDK_SCROLL_DOWN:
2015                 if (ev->state & Keyboard::TertiaryModifier) {
2016                         scroll_right ();
2017                         return true;
2018                 }
2019                 return false;
2020         }
2021
2022         return false;
2023 }
2024
2025
2026 void
2027 Mixer_UI::parameter_changed (string const & p)
2028 {
2029         if (p == "show-group-tabs") {
2030                 bool const s = _session->config.get_show_group_tabs ();
2031                 if (s) {
2032                         _group_tabs->show ();
2033                 } else {
2034                         _group_tabs->hide ();
2035                 }
2036         } else if (p == "default-narrow_ms") {
2037                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2038                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2039                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2040                 }
2041         } else if (p == "remote-model") {
2042                 reset_remote_control_ids ();
2043         } else if (p == "use-monitor-bus") {
2044                 if (_session && !_session->monitor_out()) {
2045                         monitor_section_detached ();
2046                 }
2047         }
2048 }
2049
2050 void
2051 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2052 {
2053         g->set_active (a, this);
2054 }
2055
2056 PluginSelector*
2057 Mixer_UI::plugin_selector()
2058 {
2059 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2060         if (!_plugin_selector)
2061                 _plugin_selector = new PluginSelector (PluginManager::instance());
2062 #endif
2063
2064         return _plugin_selector;
2065 }
2066
2067 void
2068 Mixer_UI::setup_track_display ()
2069 {
2070         track_model = ListStore::create (track_columns);
2071         track_display.set_model (track_model);
2072         track_display.append_column (_("Strips"), track_columns.text);
2073         track_display.append_column (_("Show"), track_columns.visible);
2074         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2075         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2076         track_display.get_column (0)->set_expand(true);
2077         track_display.get_column (1)->set_expand(false);
2078         track_display.get_column (0)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2079         track_display.set_name (X_("EditGroupList"));
2080         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2081         track_display.set_reorderable (true);
2082         track_display.set_headers_visible (true);
2083         track_display.set_can_focus(false);
2084
2085         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2086         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2087
2088         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
2089         track_list_visible_cell->property_activatable() = true;
2090         track_list_visible_cell->property_radio() = false;
2091         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2092
2093         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2094
2095         track_display_scroller.add (track_display);
2096         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2097
2098         VBox* v = manage (new VBox);
2099         v->show ();
2100         v->pack_start (track_display_scroller, true, true);
2101
2102         Button* b = manage (new Button);
2103         b->show ();
2104         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
2105         w->show ();
2106         b->add (*w);
2107
2108         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
2109
2110         v->pack_start (*b, false, false);
2111
2112         track_display_frame.set_name("BaseFrame");
2113         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2114         track_display_frame.add (*v);
2115
2116         track_display_scroller.show();
2117         track_display_frame.show();
2118         track_display.show();
2119 }
2120
2121 void
2122 Mixer_UI::new_track_or_bus ()
2123 {
2124         ARDOUR_UI::instance()->add_route ();
2125 }
2126
2127
2128 void
2129 Mixer_UI::update_title ()
2130 {
2131         if (!own_window()) {
2132                 return;
2133         }
2134
2135         if (_session) {
2136                 string n;
2137
2138                 if (_session->snap_name() != _session->name()) {
2139                         n = _session->snap_name ();
2140                 } else {
2141                         n = _session->name ();
2142                 }
2143
2144                 if (_session->dirty ()) {
2145                         n = "*" + n;
2146                 }
2147
2148                 WindowTitle title (n);
2149                 title += S_("Window|Mixer");
2150                 title += Glib::get_application_name ();
2151                 own_window()->set_title (title.get_string());
2152
2153         } else {
2154
2155                 WindowTitle title (S_("Window|Mixer"));
2156                 title += Glib::get_application_name ();
2157                 own_window()->set_title (title.get_string());
2158         }
2159 }
2160
2161 MixerStrip*
2162 Mixer_UI::strip_by_x (int x)
2163 {
2164         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2165                 int x1, x2, y;
2166
2167                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2168                 x2 = x1 + (*i)->get_width();
2169
2170                 if (x >= x1 && x <= x2) {
2171                         return (*i);
2172                 }
2173         }
2174
2175         return 0;
2176 }
2177
2178 void
2179 Mixer_UI::set_route_targets_for_operation ()
2180 {
2181         _route_targets.clear ();
2182
2183         if (!_selection.empty()) {
2184                 _route_targets = _selection.routes;
2185                 return;
2186         }
2187
2188 //  removed "implicit" selections of strips, after discussion on IRC
2189
2190 }
2191
2192 void
2193 Mixer_UI::monitor_section_going_away ()
2194 {
2195         if (_monitor_section) {
2196                 monitor_section_detached ();
2197                 out_packer.remove (_monitor_section->tearoff());
2198                 _monitor_section->set_session (0);
2199                 delete _monitor_section;
2200                 _monitor_section = 0;
2201         }
2202 }
2203
2204 void
2205 Mixer_UI::toggle_midi_input_active (bool flip_others)
2206 {
2207         boost::shared_ptr<RouteList> rl (new RouteList);
2208         bool onoff = false;
2209
2210         set_route_targets_for_operation ();
2211
2212         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
2213                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
2214
2215                 if (mt) {
2216                         rl->push_back ((*r)->route());
2217                         onoff = !mt->input_active();
2218                 }
2219         }
2220
2221         _session->set_exclusive_input_active (rl, onoff, flip_others);
2222 }
2223
2224 void
2225 Mixer_UI::maximise_mixer_space ()
2226 {
2227         if (!own_window()) {
2228                 return;
2229         }
2230
2231         if (_maximised) {
2232                 return;
2233         }
2234
2235         _window->fullscreen ();
2236         _maximised = true;
2237 }
2238
2239 void
2240 Mixer_UI::restore_mixer_space ()
2241 {
2242         if (!own_window()) {
2243                 return;
2244         }
2245
2246         if (!_maximised) {
2247                 return;
2248         }
2249
2250         own_window()->unfullscreen();
2251         _maximised = false;
2252 }
2253
2254 void
2255 Mixer_UI::monitor_section_attached ()
2256 {
2257         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2258         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2259         act->set_sensitive (true);
2260         tact->set_active ();
2261 }
2262
2263 void
2264 Mixer_UI::monitor_section_detached ()
2265 {
2266         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2267         act->set_sensitive (false);
2268 }
2269
2270 void
2271 Mixer_UI::store_current_favorite_order ()
2272 {
2273         typedef Gtk::TreeModel::Children type_children;
2274         type_children children = favorite_plugins_model->children();
2275         favorite_order.clear();
2276         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2277         {
2278                 Gtk::TreeModel::Row row = *iter;
2279                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2280                 favorite_order.push_back (ppp->_pip);
2281                 std::string name = row[favorite_plugins_columns.name];
2282                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2283         }
2284 }
2285
2286 void
2287 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2288 {
2289         Gtk::TreeModel::Row row = *iter;
2290         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2291         assert (ppp);
2292         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2293 }
2294
2295 void
2296 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2297 {
2298         PluginManager& manager (PluginManager::instance());
2299         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2300                 if (manager.get_status (*i) != PluginManager::Favorite) {
2301                         continue;
2302                 }
2303                 result.push_back (*i);
2304         }
2305 }
2306
2307 struct PluginCustomSorter {
2308 public:
2309         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2310                 PluginInfoList::const_iterator aiter = _user.begin();
2311                 PluginInfoList::const_iterator biter = _user.begin();
2312                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2313                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2314
2315                 if (aiter != _user.end() && biter != _user.end()) {
2316                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2317                 }
2318                 if (aiter != _user.end()) {
2319                         return true;
2320                 }
2321                 if (biter != _user.end()) {
2322                         return false;
2323                 }
2324                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2325         }
2326         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2327 private:
2328         PluginInfoList _user;
2329 };
2330
2331 void
2332 Mixer_UI::refill_favorite_plugins ()
2333 {
2334         PluginInfoList plugs;
2335         PluginManager& mgr (PluginManager::instance());
2336
2337 #ifdef LV2_SUPPORT
2338         refiller (plugs, mgr.lv2_plugin_info ());
2339 #endif
2340 #ifdef WINDOWS_VST_SUPPORT
2341         refiller (plugs, mgr.windows_vst_plugin_info ());
2342 #endif
2343 #ifdef LXVST_SUPPORT
2344         refiller (plugs, mgr.lxvst_plugin_info ());
2345 #endif
2346 #ifdef AUDIOUNIT_SUPPORT
2347         refiller (plugs, mgr.au_plugin_info ());
2348 #endif
2349         refiller (plugs, mgr.ladspa_plugin_info ());
2350         refiller (plugs, mgr.lua_plugin_info ());
2351
2352         store_current_favorite_order ();
2353
2354         PluginCustomSorter cmp (favorite_order);
2355         plugs.sort (cmp);
2356
2357         favorite_order = plugs;
2358
2359         sync_treeview_from_favorite_order ();
2360 }
2361
2362 void
2363 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2364 {
2365         TreeIter iter;
2366         if (!(iter = favorite_plugins_model->get_iter (path))) {
2367                 return;
2368         }
2369         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2370         if (!ppp) {
2371                 return;
2372         }
2373         PluginInfoPtr pip = ppp->_pip;
2374         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2375                 if (favorite_ui_state[pip->unique_id]) {
2376                         favorite_plugins_display.expand_row (path, true);
2377                 }
2378         }
2379 }
2380
2381 void
2382 Mixer_UI::sync_treeview_from_favorite_order ()
2383 {
2384         favorite_plugins_model->clear ();
2385         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2386                 PluginInfoPtr pip = (*i);
2387
2388                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2389                 newrow[favorite_plugins_columns.name] = (*i)->name;
2390                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2391                 if (!_session) {
2392                         continue;
2393                 }
2394
2395                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2396                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2397                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2398                         child_row[favorite_plugins_columns.name] = (*j).label;
2399                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2400                 }
2401                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2402                         if (favorite_ui_state[pip->unique_id]) {
2403                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2404                         }
2405                 }
2406         }
2407 }
2408
2409 void
2410 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2411 {
2412         using namespace Gtk::Menu_Helpers;
2413
2414         Gtk::Menu* m = manage (new Menu);
2415         MenuList& items = m->items ();
2416
2417         if (_selection.routes.empty()) {
2418                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
2419         } else {
2420                 items.push_back (MenuElem (_("Add at the top"),
2421                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
2422                 items.push_back (MenuElem (_("Add Pre-Fader"),
2423                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
2424                 items.push_back (MenuElem (_("Add Post-Fader"),
2425                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
2426                 items.push_back (MenuElem (_("Add at the end"),
2427                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
2428         }
2429
2430         items.push_back (SeparatorElem());
2431
2432         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
2433
2434         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2435         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
2436                 // we cannot currently delete AU presets
2437                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
2438                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
2439                 }
2440         }
2441
2442         m->popup (ev->button, ev->time);
2443 }
2444
2445 bool
2446 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
2447 {
2448         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
2449                 TreeModel::Path path;
2450                 TreeViewColumn* column;
2451                 int cellx, celly;
2452                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
2453                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2454                         if (selection) {
2455                                 selection->unselect_all();
2456                                 selection->select(path);
2457                         }
2458                 }
2459                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
2460                 if (ppp) {
2461                         popup_note_context_menu (ev);
2462                 }
2463         }
2464         return false;
2465 }
2466
2467
2468 PluginPresetPtr
2469 Mixer_UI::selected_plugin ()
2470 {
2471         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2472         if (!selection) {
2473                 return PluginPresetPtr();
2474         }
2475         Gtk::TreeModel::iterator iter = selection->get_selected();
2476         if (!iter) {
2477                 return PluginPresetPtr();
2478         }
2479         return (*iter)[favorite_plugins_columns.plugin];
2480 }
2481
2482 void
2483 Mixer_UI::add_selected_processor (ProcessorPosition pos)
2484 {
2485         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2486         if (ppp) {
2487                 add_favorite_processor (ppp, pos);
2488         }
2489 }
2490
2491 void
2492 Mixer_UI::delete_selected_preset ()
2493 {
2494         if (!_session) {
2495                 return;
2496         }
2497         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2498         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
2499                 return;
2500         }
2501         PluginPtr plugin = ppp->_pip->load (*_session);
2502         plugin->get_presets();
2503         plugin->remove_preset (ppp->_preset.label);
2504 }
2505
2506 void
2507 Mixer_UI::remove_selected_from_favorites ()
2508 {
2509         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2510         if (!ppp) {
2511                 return;
2512         }
2513         PluginManager::PluginStatusType status = PluginManager::Normal;
2514         PluginManager& manager (PluginManager::instance());
2515
2516         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2517         manager.save_statuses ();
2518 }
2519
2520 void
2521 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
2522 {
2523         TreeIter iter;
2524         if (!(iter = favorite_plugins_model->get_iter (path))) {
2525                 return;
2526         }
2527         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2528         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
2529 }
2530
2531 void
2532 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
2533 {
2534         if (!_session || _selection.routes.empty()) {
2535                 return;
2536         }
2537
2538         PluginInfoPtr pip = ppp->_pip;
2539         for (RouteUISelection::iterator i = _selection.routes.begin(); i != _selection.routes.end(); ++i) {
2540                 boost::shared_ptr<ARDOUR::Route> rt = (*i)->route();
2541                 if (!rt) { continue; }
2542
2543                 PluginPtr p = pip->load (*_session);
2544                 if (!p) { continue; }
2545
2546                 if (ppp->_preset.valid) {
2547                         p->load_preset (ppp->_preset);
2548                 }
2549
2550                 Route::ProcessorStreams err;
2551                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2552
2553                 switch (pos) {
2554                         case AddTop:
2555                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
2556                                 break;
2557                         case AddPreFader:
2558                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
2559                                 break;
2560                         case AddPostFader:
2561                                 {
2562                                         int idx = 0;
2563                                         int pos = 0;
2564                                         for (;;++idx) {
2565                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
2566                                                 if (!np) {
2567                                                         break;
2568                                                 }
2569                                                 if (!np->display_to_user()) {
2570                                                         continue;
2571                                                 }
2572                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
2573                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
2574                                                         break;
2575                                                 }
2576                                                 ++pos;
2577                                         }
2578                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
2579                                 }
2580                                 break;
2581                         case AddBottom:
2582                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
2583                                 break;
2584                 }
2585         }
2586 }
2587
2588 bool
2589 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
2590 {
2591         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
2592                 return false;
2593         }
2594
2595         // only allow to re-order top-level items
2596         TreePath src;
2597         if (TreePath::get_from_selection_data (data, src)) {
2598                 if (src.up() && src.up()) {
2599                         return false;
2600                 }
2601         }
2602
2603         // don't allow to drop as child-rows.
2604         Gtk::TreeModel::Path _dest = dest; // un const
2605         const bool is_child = _dest.up (); // explicit bool for clang
2606         if (!is_child || _dest.empty ()) {
2607                 return true;
2608         }
2609         return false;
2610 }
2611
2612 void
2613 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
2614 {
2615         if (data.get_target() != "PluginPresetPtr") {
2616                 return;
2617         }
2618         if (data.get_length() != sizeof (PluginPresetPtr)) {
2619                 return;
2620         }
2621         const void *d = data.get_data();
2622         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
2623
2624         PluginManager::PluginStatusType status = PluginManager::Favorite;
2625         PluginManager& manager (PluginManager::instance());
2626
2627         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2628         manager.save_statuses ();
2629 }
2630
2631 void
2632 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
2633 {
2634         /* call protected MixerActor:: method */
2635         vca_assign (vca);
2636 }
2637
2638 void
2639 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
2640 {
2641         /* call protected MixerActor:: method */
2642         vca_unassign (vca);
2643 }