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                 vms->CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_master, this, _1), gui_context());
 390         }
 391
 392         redisplay_track_list ();
 393 }
 394
 395 void
 396 Mixer_UI::remove_master (VCAMasterStrip* vms)
 397 {
 398         if (_session && _session->deletion_in_progress()) {
 399                 /* its all being taken care of */
 400                 return;
 401         }
 402
 403         TreeModel::Children rows = track_model->children();
 404         TreeModel::Children::iterator ri;
 405
 406         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 407                 if ((*ri)[track_columns.vca] == vms) {
 408                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 409                         track_model->erase (ri);
 410                         break;
 411                 }
 412         }
 413 }
 414
 415 void
 416 Mixer_UI::add_strips (RouteList& routes)
 417 {
 418         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 419         uint32_t nroutes = 0;
 420
 421         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 422                 boost::shared_ptr<Route> r = (*it)[track_columns.route];
 423
 424                 if (!r) {
 425                         continue;
 426                 }
 427
 428                 nroutes++;
 429
 430                 if (r->order_key() == (routes.front()->order_key() + routes.size())) {
 431                         insert_iter = it;
 432                         break;
 433                 }
 434         }
 435
 436         if (nroutes) {
 437                 _selection.clear_routes ();
 438         }
 439
 440         MixerStrip* strip;
 441
 442         try {
 443                 no_track_list_redisplay = true;
 444                 track_display.set_model (Glib::RefPtr<ListStore>());
 445
 446                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 447                         boost::shared_ptr<Route> route = (*x);
 448
 449                         if (route->is_auditioner()) {
 450                                 continue;
 451                         }
 452
 453                         if (route->is_monitor()) {
 454
 455                                 if (!_monitor_section) {
 456                                         _monitor_section = new MonitorSection (_session);
 457
 458                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 459                                         if (mnode) {
 460                                                 _monitor_section->tearoff().set_state (*mnode);
 461                                         }
 462                                 }
 463
 464                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 465                                 _monitor_section->set_session (_session);
 466                                 _monitor_section->tearoff().show_all ();
 467
 468                                 _monitor_section->tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
 469                                 _monitor_section->tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
 470
 471                                 monitor_section_attached ();
 472
 473                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 474
 475                                 /* no regular strip shown for control out */
 476
 477                                 continue;
 478                         }
 479
 480                         strip = new MixerStrip (*this, _session, route);
 481                         strips.push_back (strip);
 482
 483                         UIConfiguration::instance().get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 484
 485                         if (strip->width_owner() != strip) {
 486                                 strip->set_width_enum (_strip_width, this);
 487                         }
 488
 489                         show_strip (strip);
 490
 491                         TreeModel::Row row = *(track_model->insert(insert_iter));
 492                         row[track_columns.text] = route->name();
 493                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 494                         row[track_columns.route] = route;
 495                         row[track_columns.strip] = strip;
 496                         row[track_columns.vca] = 0;
 497
 498                         if (nroutes != 0) {
 499                                 _selection.add (strip);
 500                         }
 501
 502                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 503
 504                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 505                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 506                 }
 507
 508         } catch (const std::exception& e) {
 509                 error << string_compose (_("Error adding GUI elements for new tracks/busses %1"), e.what()) << endmsg;
 510         }
 511
 512         no_track_list_redisplay = false;
 513         track_display.set_model (track_model);
 514
 515         sync_order_keys_from_treeview ();
 516         redisplay_track_list ();
 517 }
 518
 519 void
 520 Mixer_UI::deselect_all_strip_processors ()
 521 {
 522         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 523                 (*i)->deselect_all_processors();
 524         }
 525 }
 526
 527 void
 528 Mixer_UI::select_strip (MixerStrip& ms, bool add)
 529 {
 530         if (add) {
 531                 _selection.add (&ms);
 532         } else {
 533                 _selection.set (&ms);
 534         }
 535 }
 536
 537 void
 538 Mixer_UI::select_none ()
 539 {
 540         _selection.clear_routes();
 541         deselect_all_strip_processors();
 542 }
 543
 544 void
 545 Mixer_UI::delete_processors ()
 546 {
 547         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 548                 (*i)->delete_processors();
 549         }
 550 }
 551
 552
 553 void
 554 Mixer_UI::remove_strip (MixerStrip* strip)
 555 {
 556         if (_session && _session->deletion_in_progress()) {
 557                 /* its all being taken care of */
 558                 return;
 559         }
 560
 561         TreeModel::Children rows = track_model->children();
 562         TreeModel::Children::iterator ri;
 563         list<MixerStrip *>::iterator i;
 564
 565         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 566                 strips.erase (i);
 567         }
 568
 569         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 570                 if ((*ri)[track_columns.strip] == strip) {
 571                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 572                         track_model->erase (ri);
 573                         break;
 574                 }
 575         }
 576 }
 577
 578 void
 579 Mixer_UI::reset_remote_control_ids ()
 580 {
 581         if (Config->get_remote_model() == UserOrdered || !_session || _session->deletion_in_progress()) {
 582                 return;
 583         }
 584
 585         TreeModel::Children rows = track_model->children();
 586
 587         if (rows.empty()) {
 588                 return;
 589         }
 590
 591         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 592
 593         TreeModel::Children::iterator ri;
 594         bool rid_change = false;
 595         uint32_t rid = 1;
 596         uint32_t invisible_key = UINT32_MAX;
 597
 598         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 599
 600                 /* skip two special values */
 601
 602                 if (rid == Route::MasterBusRemoteControlID) {
 603                         rid++;
 604                 }
 605
 606                 if (rid == Route::MonitorBusRemoteControlID) {
 607                         rid++;
 608                 }
 609
 610                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 611                 bool visible = (*ri)[track_columns.visible];
 612
 613                 if (!route) {
 614                         continue;
 615                 }
 616
 617                 if (!route->is_master() && !route->is_monitor()) {
 618
 619                         uint32_t new_rid = (visible ? rid : invisible_key--);
 620
 621                         if (new_rid != route->remote_control_id()) {
 622                                 route->set_remote_control_id_explicit (new_rid);
 623                                 rid_change = true;
 624                         }
 625
 626                         if (visible) {
 627                                 rid++;
 628                         }
 629                 }
 630         }
 631
 632         if (rid_change) {
 633                 /* tell the world that we changed the remote control IDs */
 634                 _session->notify_remote_id_change ();
 635         }
 636 }
 637
 638 void
 639 Mixer_UI::sync_order_keys_from_treeview ()
 640 {
 641         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 642                 return;
 643         }
 644
 645         TreeModel::Children rows = track_model->children();
 646
 647         if (rows.empty()) {
 648                 return;
 649         }
 650
 651         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 652
 653         TreeModel::Children::iterator ri;
 654         bool changed = false;
 655         bool rid_change = false;
 656         uint32_t order = 0;
 657         uint32_t rid = 1;
 658         uint32_t invisible_key = UINT32_MAX;
 659
 660         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 661                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 662                 bool visible = (*ri)[track_columns.visible];
 663
 664                 if (!route) {
 665                         continue;
 666                 }
 667
 668                 uint32_t old_key = route->order_key ();
 669
 670                 if (order != old_key) {
 671                         route->set_order_key (order);
 672                         changed = true;
 673                 }
 674
 675                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 676
 677                         uint32_t new_rid = (visible ? rid : invisible_key--);
 678
 679                         if (new_rid != route->remote_control_id()) {
 680                                 route->set_remote_control_id_explicit (new_rid);
 681                                 rid_change = true;
 682                         }
 683
 684                         if (visible) {
 685                                 rid++;
 686                         }
 687
 688                 }
 689
 690                 ++order;
 691         }
 692
 693         if (changed) {
 694                 /* tell everyone that we changed the mixer sort keys */
 695                 _session->sync_order_keys ();
 696         }
 697
 698         if (rid_change) {
 699                 /* tell the world that we changed the remote control IDs */
 700                 _session->notify_remote_id_change ();
 701         }
 702 }
 703
 704 void
 705 Mixer_UI::sync_treeview_from_order_keys ()
 706 {
 707         if (!_session || _session->deletion_in_progress()) {
 708                 return;
 709         }
 710
 711         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from order keys.\n");
 712
 713         /* we could get here after either a change in the Mixer or Editor sort
 714          * order, but either way, the mixer order keys reflect the intended
 715          * order for the GUI, so reorder the treeview model to match it.
 716          */
 717
 718         vector<int> neworder;
 719         TreeModel::Children rows = track_model->children();
 720         uint32_t old_order = 0;
 721         bool changed = false;
 722
 723         if (rows.empty()) {
 724                 return;
 725         }
 726
 727         OrderingKeys sorted;
 728         uint32_t vca_cnt = 0;
 729         uint32_t max_route_order_key = 0;
 730
 731         /* count number of Routes in track_model (there may be some odd reason
 732            why this is not the same as the number in the session, but here we
 733            care about the track model.
 734         */
 735
 736         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri) {
 737                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 738                 if (route) {
 739                         max_route_order_key = max (route->order_key(), max_route_order_key);
 740                 }
 741         }
 742
 743         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 744                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 745                 if (!route) {
 746                         /* VCAs need to sort after all routes. We don't display
 747                          * them in the same place (March 2016), but we don't
 748                          * want them intermixed in the track_model
 749                          */
 750                         sorted.push_back (OrderKeys (old_order, max_route_order_key + ++vca_cnt));
 751                 } else {
 752                         sorted.push_back (OrderKeys (old_order, route->order_key ()));
 753                 }
 754         }
 755
 756         SortByNewDisplayOrder cmp;
 757
 758         sort (sorted.begin(), sorted.end(), cmp);
 759         neworder.assign (sorted.size(), 0);
 760
 761         uint32_t n = 0;
 762
 763         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 764
 765                 neworder[n] = sr->old_display_order;
 766
 767                 if (sr->old_display_order != n) {
 768                         changed = true;
 769                 }
 770
 771                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order from %1 to %2\n",
 772                                                                sr->old_display_order, n));
 773         }
 774
 775         if (changed) {
 776                 Unwinder<bool> uw (ignore_reorder, true);
 777                 track_model->reorder (neworder);
 778         }
 779
 780         redisplay_track_list ();
 781 }
 782
 783 void
 784 Mixer_UI::follow_editor_selection ()
 785 {
 786         if (_following_editor_selection) {
 787                 return;
 788         }
 789
 790         _following_editor_selection = true;
 791         _selection.block_routes_changed (true);
 792
 793         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 794
 795         _selection.clear_routes ();
 796
 797         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 798                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 799                 if (rtav) {
 800                         MixerStrip* ms = strip_by_route (rtav->route());
 801                         if (ms) {
 802                                 _selection.add (ms);
 803                         }
 804                 }
 805         }
 806
 807         _following_editor_selection = false;
 808         _selection.block_routes_changed (false);
 809 }
 810
 811
 812 MixerStrip*
 813 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 814 {
 815         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 816                 if ((*i)->route() == r) {
 817                         return (*i);
 818                 }
 819         }
 820
 821         return 0;
 822 }
 823
 824 bool
 825 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 826 {
 827         if (ev->button == 1) {
 828                 if (_selection.selected (strip)) {
 829                         /* primary-click: toggle selection state of strip */
 830                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 831                                 _selection.remove (strip);
 832                         } else if (_selection.routes.size() > 1) {
 833                                 /* de-select others */
 834                                 _selection.set (strip);
 835                         }
 836                 } else {
 837                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 838                                 _selection.add (strip);
 839                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 840
 841                                 if (!_selection.selected(strip)) {
 842
 843                                         /* extend selection */
 844
 845                                         vector<MixerStrip*> tmp;
 846                                         bool accumulate = false;
 847                                         bool found_another = false;
 848
 849                                         tmp.push_back (strip);
 850
 851                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 852                                                 if ((*i) == strip) {
 853                                                         /* hit clicked strip, start accumulating till we hit the first
 854                                                            selected strip
 855                                                         */
 856                                                         if (accumulate) {
 857                                                                 /* done */
 858                                                                 break;
 859                                                         } else {
 860                                                                 accumulate = true;
 861                                                         }
 862                                                 } else if (_selection.selected (*i)) {
 863                                                         /* hit selected strip. if currently accumulating others,
 864                                                            we're done. if not accumulating others, start doing so.
 865                                                         */
 866                                                         found_another = true;
 867                                                         if (accumulate) {
 868                                                                 /* done */
 869                                                                 break;
 870                                                         } else {
 871                                                                 accumulate = true;
 872                                                         }
 873                                                 } else {
 874                                                         if (accumulate) {
 875                                                                 tmp.push_back (*i);
 876                                                         }
 877                                                 }
 878                                         }
 879
 880                                         if (found_another) {
 881                                                 for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 882                                                         _selection.add (*i);
 883                                                 }
 884                                         } else
 885                                                 _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
 886                                 }
 887
 888                         } else {
 889                                 _selection.set (strip);
 890                         }
 891                 }
 892         }
 893
 894         return true;
 895 }
 896
 897 void
 898 Mixer_UI::set_session (Session* sess)
 899 {
 900         SessionHandlePtr::set_session (sess);
 901
 902         if (_plugin_selector) {
 903                 _plugin_selector->set_session (_session);
 904         }
 905
 906         _group_tabs->set_session (sess);
 907
 908         if (!_session) {
 909                 return;
 910         }
 911
 912         refill_favorite_plugins();
 913
 914         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 915         set_state (*node, 0);
 916
 917         update_title ();
 918
 919         initial_track_display ();
 920
 921         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 922         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 923         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 924         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 925         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 926         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 927         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 928
 929         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_masters, this, _1), gui_context());
 930
 931         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 932
 933         route_groups_changed ();
 934
 935         if (_visible) {
 936                 show_window();
 937         }
 938         start_updating ();
 939 }
 940
 941 void
 942 Mixer_UI::session_going_away ()
 943 {
 944         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 945
 946         _in_group_rebuild_or_clear = true;
 947         group_model->clear ();
 948         _in_group_rebuild_or_clear = false;
 949
 950         _selection.clear ();
 951         track_model->clear ();
 952
 953         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 954                 delete (*i);
 955         }
 956
 957         if (_monitor_section) {
 958                 _monitor_section->tearoff().hide_visible ();
 959         }
 960
 961         monitor_section_detached ();
 962
 963         strips.clear ();
 964
 965         stop_updating ();
 966
 967         SessionHandlePtr::session_going_away ();
 968
 969         _session = 0;
 970         update_title ();
 971 }
 972
 973 void
 974 Mixer_UI::track_visibility_changed (std::string const & path)
 975 {
 976         if (_session && _session->deletion_in_progress()) {
 977                 return;
 978         }
 979
 980         TreeIter iter;
 981
 982         if ((iter = track_model->get_iter (path))) {
 983                 MixerStrip* strip = (*iter)[track_columns.strip];
 984                 if (strip) {
 985                         bool visible = (*iter)[track_columns.visible];
 986
 987                         if (strip->set_marked_for_display (!visible)) {
 988                                 update_track_visibility ();
 989                         }
 990                 }
 991         }
 992 }
 993
 994 void
 995 Mixer_UI::update_track_visibility ()
 996 {
 997         TreeModel::Children rows = track_model->children();
 998         TreeModel::Children::iterator i;
 999
1000         {
1001                 Unwinder<bool> uw (no_track_list_redisplay, true);
1002
1003                 for (i = rows.begin(); i != rows.end(); ++i) {
1004                         MixerStrip *strip = (*i)[track_columns.strip];
1005                         if (strip) {
1006                                 (*i)[track_columns.visible] = strip->marked_for_display ();
1007                         }
1008                 }
1009
1010                 /* force route order keys catch up with visibility changes
1011                  */
1012
1013                 sync_order_keys_from_treeview ();
1014         }
1015
1016         redisplay_track_list ();
1017 }
1018
1019 void
1020 Mixer_UI::show_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] = true;
1030                         redisplay_track_list ();
1031                         break;
1032                 }
1033         }
1034 }
1035
1036 void
1037 Mixer_UI::hide_strip (MixerStrip* ms)
1038 {
1039         TreeModel::Children rows = track_model->children();
1040         TreeModel::Children::iterator i;
1041
1042         for (i = rows.begin(); i != rows.end(); ++i) {
1043
1044                 MixerStrip* strip = (*i)[track_columns.strip];
1045                 if (strip == ms) {
1046                         (*i)[track_columns.visible] = false;
1047                         redisplay_track_list ();
1048                         break;
1049                 }
1050         }
1051 }
1052
1053 gint
1054 Mixer_UI::start_updating ()
1055 {
1056     fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
1057     return 0;
1058 }
1059
1060 gint
1061 Mixer_UI::stop_updating ()
1062 {
1063     fast_screen_update_connection.disconnect();
1064     return 0;
1065 }
1066
1067 void
1068 Mixer_UI::fast_update_strips ()
1069 {
1070         if (_content.is_mapped () && _session) {
1071                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1072                         (*i)->fast_update ();
1073                 }
1074         }
1075 }
1076
1077 void
1078 Mixer_UI::set_all_strips_visibility (bool yn)
1079 {
1080         TreeModel::Children rows = track_model->children();
1081         TreeModel::Children::iterator i;
1082
1083         {
1084                 Unwinder<bool> uw (no_track_list_redisplay, true);
1085
1086                 for (i = rows.begin(); i != rows.end(); ++i) {
1087
1088                         TreeModel::Row row = (*i);
1089                         MixerStrip* strip = row[track_columns.strip];
1090
1091                         if (!strip) {
1092                                 continue;
1093                         }
1094
1095                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1096                                 continue;
1097                         }
1098
1099                         (*i)[track_columns.visible] = yn;
1100                 }
1101         }
1102
1103         redisplay_track_list ();
1104 }
1105
1106
1107 void
1108 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
1109 {
1110         TreeModel::Children rows = track_model->children();
1111         TreeModel::Children::iterator i;
1112
1113         {
1114                 Unwinder<bool> uw (no_track_list_redisplay, true);
1115
1116                 for (i = rows.begin(); i != rows.end(); ++i) {
1117                         TreeModel::Row row = (*i);
1118                         MixerStrip* strip = row[track_columns.strip];
1119
1120                         if (!strip) {
1121                                 continue;
1122                         }
1123
1124                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1125                                 continue;
1126                         }
1127
1128                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
1129                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
1130
1131                         switch (tracks) {
1132                         case 0:
1133                                 (*i)[track_columns.visible] = yn;
1134                                 break;
1135
1136                         case 1:
1137                                 if (at) { /* track */
1138                                         (*i)[track_columns.visible] = yn;
1139                                 }
1140                                 break;
1141
1142                         case 2:
1143                                 if (!at && !mt) { /* bus */
1144                                         (*i)[track_columns.visible] = yn;
1145                                 }
1146                                 break;
1147
1148                         case 3:
1149                                 if (mt) { /* midi-track */
1150                                         (*i)[track_columns.visible] = yn;
1151                                 }
1152                                 break;
1153                         }
1154                 }
1155         }
1156
1157         redisplay_track_list ();
1158 }
1159
1160 void
1161 Mixer_UI::hide_all_routes ()
1162 {
1163         set_all_strips_visibility (false);
1164 }
1165
1166 void
1167 Mixer_UI::show_all_routes ()
1168 {
1169         set_all_strips_visibility (true);
1170 }
1171
1172 void
1173 Mixer_UI::show_all_audiobus ()
1174 {
1175         set_all_audio_midi_visibility (2, true);
1176 }
1177 void
1178 Mixer_UI::hide_all_audiobus ()
1179 {
1180         set_all_audio_midi_visibility (2, false);
1181 }
1182
1183 void
1184 Mixer_UI::show_all_audiotracks()
1185 {
1186         set_all_audio_midi_visibility (1, true);
1187 }
1188 void
1189 Mixer_UI::hide_all_audiotracks ()
1190 {
1191         set_all_audio_midi_visibility (1, false);
1192 }
1193
1194 void
1195 Mixer_UI::show_all_miditracks()
1196 {
1197         set_all_audio_midi_visibility (3, true);
1198 }
1199 void
1200 Mixer_UI::hide_all_miditracks ()
1201 {
1202         set_all_audio_midi_visibility (3, false);
1203 }
1204
1205
1206 void
1207 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1208 {
1209         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1210         sync_order_keys_from_treeview ();
1211 }
1212
1213 void
1214 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1215 {
1216         /* this happens as the second step of a DnD within the treeview as well
1217            as when a row/route is actually deleted.
1218
1219            if it was a deletion then we have to force a redisplay because
1220            order keys may not have changed.
1221         */
1222
1223         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1224         sync_order_keys_from_treeview ();
1225
1226         if (_route_deletion_in_progress) {
1227                 redisplay_track_list ();
1228         }
1229 }
1230
1231 void
1232 Mixer_UI::redisplay_track_list ()
1233 {
1234         TreeModel::Children rows = track_model->children();
1235         TreeModel::Children::iterator i;
1236         uint32_t n_masters = 0;
1237
1238         if (no_track_list_redisplay) {
1239                 return;
1240         }
1241
1242         container_clear (vca_packer);
1243
1244         for (i = rows.begin(); i != rows.end(); ++i) {
1245
1246                 VCAMasterStrip* vms = (*i)[track_columns.vca];
1247
1248                 if (vms) {
1249                         vca_packer.pack_start (*vms, false, false);
1250                         vms->show ();
1251                         n_masters++;
1252                         continue;
1253                 }
1254
1255                 MixerStrip* strip = (*i)[track_columns.strip];
1256
1257                 if (!strip) {
1258                         /* we're in the middle of changing a row, don't worry */
1259                         continue;
1260                 }
1261
1262                 bool const visible = (*i)[track_columns.visible];
1263
1264                 if (visible) {
1265                         strip->set_gui_property ("visible", true);
1266
1267                         if (strip->packed()) {
1268
1269                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1270                                         out_packer.reorder_child (*strip, -1);
1271
1272                                 } else {
1273                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1274                                 }
1275
1276                         } else {
1277
1278                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1279                                         out_packer.pack_start (*strip, false, false);
1280                                 } else {
1281                                         strip_packer.pack_start (*strip, false, false);
1282                                 }
1283                                 strip->set_packed (true);
1284                         }
1285
1286                 } else {
1287
1288                         strip->set_gui_property ("visible", false);
1289
1290                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1291                                 /* do nothing, these cannot be hidden */
1292                         } else {
1293                                 if (strip->packed()) {
1294                                         strip_packer.remove (*strip);
1295                                         strip->set_packed (false);
1296                                 }
1297                         }
1298                 }
1299         }
1300
1301         /* update visibility of VCA assign buttons */
1302
1303         if (n_masters == 0) {
1304                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::remove_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1305         } else {
1306                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::add_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1307         }
1308
1309         _group_tabs->set_dirty ();
1310 }
1311
1312 void
1313 Mixer_UI::strip_width_changed ()
1314 {
1315         _group_tabs->set_dirty ();
1316
1317 #ifdef __APPLE__
1318         TreeModel::Children rows = track_model->children();
1319         TreeModel::Children::iterator i;
1320         long order;
1321
1322         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1323                 MixerStrip* strip = (*i)[track_columns.strip];
1324
1325                 if (strip == 0) {
1326                         continue;
1327                 }
1328
1329                 bool visible = (*i)[track_columns.visible];
1330
1331                 if (visible) {
1332                         strip->queue_draw();
1333                 }
1334         }
1335 #endif
1336
1337 }
1338
1339 void
1340 Mixer_UI::initial_track_display ()
1341 {
1342         boost::shared_ptr<RouteList> routes = _session->get_routes();
1343         RouteList copy (*routes);
1344         ARDOUR::SignalOrderRouteSorter sorter;
1345
1346         copy.sort (sorter);
1347
1348         {
1349                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1350                 Unwinder<bool> uw2 (ignore_reorder, true);
1351
1352                 track_model->clear ();
1353                 VCAList vcas = _session->vca_manager().vcas();
1354                 add_masters (vcas);
1355                 add_strips (copy);
1356         }
1357
1358         _session->sync_order_keys ();
1359
1360         redisplay_track_list ();
1361 }
1362
1363 void
1364 Mixer_UI::show_track_list_menu ()
1365 {
1366         if (track_menu == 0) {
1367                 build_track_menu ();
1368         }
1369
1370         track_menu->popup (1, gtk_get_current_event_time());
1371 }
1372
1373 bool
1374 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1375 {
1376         if (Keyboard::is_context_menu_event (ev)) {
1377                 show_track_list_menu ();
1378                 return true;
1379         }
1380
1381         return false;
1382 }
1383
1384 void
1385 Mixer_UI::build_track_menu ()
1386 {
1387         using namespace Menu_Helpers;
1388         using namespace Gtk;
1389
1390         track_menu = new Menu;
1391         track_menu->set_name ("ArdourContextMenu");
1392         MenuList& items = track_menu->items();
1393
1394         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1395         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1396         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1397         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1398         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1399         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1400         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1401         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1402
1403 }
1404
1405 void
1406 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1407 {
1408         if (!what_changed.contains (ARDOUR::Properties::name)) {
1409                 return;
1410         }
1411
1412         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1413
1414         TreeModel::Children rows = track_model->children();
1415         TreeModel::Children::iterator i;
1416
1417         for (i = rows.begin(); i != rows.end(); ++i) {
1418                 if ((*i)[track_columns.strip] == mx) {
1419                         (*i)[track_columns.text] = mx->route()->name();
1420                         return;
1421                 }
1422         }
1423
1424         error << _("track display list item for renamed strip not found!") << endmsg;
1425 }
1426
1427 bool
1428 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1429 {
1430         TreeModel::Path path;
1431         TreeViewColumn* column;
1432         int cellx;
1433         int celly;
1434
1435         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1436                 _group_tabs->get_menu(0)->popup (1, ev->time);
1437                 return true;
1438         }
1439
1440         TreeIter iter = group_model->get_iter (path);
1441         if (!iter) {
1442                 _group_tabs->get_menu(0)->popup (1, ev->time);
1443                 return true;
1444         }
1445
1446         RouteGroup* group = (*iter)[group_columns.group];
1447
1448         if (Keyboard::is_context_menu_event (ev)) {
1449                 _group_tabs->get_menu(group)->popup (1, ev->time);
1450                 return true;
1451         }
1452
1453         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1454         case 0:
1455                 if (Keyboard::is_edit_event (ev)) {
1456                         if (group) {
1457                                 // edit_route_group (group);
1458 #ifdef __APPLE__
1459                                 group_display.queue_draw();
1460 #endif
1461                                 return true;
1462                         }
1463                 }
1464                 break;
1465
1466         case 1:
1467         {
1468                 bool visible = (*iter)[group_columns.visible];
1469                 (*iter)[group_columns.visible] = !visible;
1470 #ifdef __APPLE__
1471                 group_display.queue_draw();
1472 #endif
1473                 return true;
1474         }
1475
1476         default:
1477                 break;
1478         }
1479
1480         return false;
1481  }
1482
1483 void
1484 Mixer_UI::activate_all_route_groups ()
1485 {
1486         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1487 }
1488
1489 void
1490 Mixer_UI::disable_all_route_groups ()
1491 {
1492         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1493 }
1494
1495 void
1496 Mixer_UI::route_groups_changed ()
1497 {
1498         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1499
1500         _in_group_rebuild_or_clear = true;
1501
1502         /* just rebuild the while thing */
1503
1504         group_model->clear ();
1505
1506 #if 0
1507         /* this is currently not used,
1508          * Mixer_UI::group_display_button_press() has a case for it,
1509          * and a commented edit_route_group() but that's n/a since 2011.
1510          *
1511          * This code is left as reminder that
1512          * row[group_columns.group] = 0 has special meaning.
1513          */
1514         {
1515                 TreeModel::Row row;
1516                 row = *(group_model->append());
1517                 row[group_columns.visible] = true;
1518                 row[group_columns.text] = (_("-all-"));
1519                 row[group_columns.group] = 0;
1520         }
1521 #endif
1522
1523         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1524
1525         _group_tabs->set_dirty ();
1526         _in_group_rebuild_or_clear = false;
1527 }
1528
1529 void
1530 Mixer_UI::new_route_group ()
1531 {
1532         RouteList rl;
1533
1534         _group_tabs->run_new_group_dialog (rl);
1535 }
1536
1537 void
1538 Mixer_UI::remove_selected_route_group ()
1539 {
1540         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1541         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1542
1543         if (rows.empty()) {
1544                 return;
1545         }
1546
1547         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1548         TreeIter iter;
1549
1550         /* selection mode is single, so rows.begin() is it */
1551
1552         if ((iter = group_model->get_iter (*i))) {
1553
1554                 RouteGroup* rg = (*iter)[group_columns.group];
1555
1556                 if (rg) {
1557                         _session->remove_route_group (*rg);
1558                 }
1559         }
1560 }
1561
1562 void
1563 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1564 {
1565         if (in_group_row_change) {
1566                 return;
1567         }
1568
1569         /* force an update of any mixer strips that are using this group,
1570            otherwise mix group names don't change in mixer strips
1571         */
1572
1573         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1574                 if ((*i)->route_group() == group) {
1575                         (*i)->route_group_changed();
1576                 }
1577         }
1578
1579         TreeModel::iterator i;
1580         TreeModel::Children rows = group_model->children();
1581         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1582
1583         in_group_row_change = true;
1584
1585         for (i = rows.begin(); i != rows.end(); ++i) {
1586                 if ((*i)[group_columns.group] == group) {
1587                         (*i)[group_columns.visible] = !group->is_hidden ();
1588                         (*i)[group_columns.text] = group->name ();
1589                         break;
1590                 }
1591         }
1592
1593         in_group_row_change = false;
1594
1595         if (change.contains (Properties::name)) {
1596                 _group_tabs->set_dirty ();
1597         }
1598
1599         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1600                 if ((*j)->route_group() == group) {
1601                         if (group->is_hidden ()) {
1602                                 hide_strip (*j);
1603                         } else {
1604                                 show_strip (*j);
1605                         }
1606                 }
1607         }
1608 }
1609
1610 void
1611 Mixer_UI::show_mixer_list (bool yn)
1612 {
1613         if (yn) {
1614                 list_vpacker.show ();
1615
1616                 //if user wants to show the pane, we should make sure that it is wide enough to be visible
1617                 int width = list_hpane.get_position();
1618                 if (width < 40) {
1619                         list_hpane.set_position(40);
1620                 }
1621         } else {
1622                 list_vpacker.hide ();
1623         }
1624
1625         _show_mixer_list = yn;
1626 }
1627
1628 void
1629 Mixer_UI::show_monitor_section (bool yn)
1630 {
1631         if (!monitor_section()) {
1632                 return;
1633         }
1634         if (monitor_section()->tearoff().torn_off()) {
1635                 return;
1636         }
1637
1638         if (yn) {
1639                 monitor_section()->tearoff().show();
1640         } else {
1641                 monitor_section()->tearoff().hide();
1642         }
1643 }
1644
1645 void
1646 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1647 {
1648         RouteGroup* group;
1649         TreeIter iter;
1650
1651         if ((iter = group_model->get_iter (path))) {
1652
1653                 if ((group = (*iter)[group_columns.group]) == 0) {
1654                         return;
1655                 }
1656
1657                 if (new_text != group->name()) {
1658                         group->set_name (new_text);
1659                 }
1660         }
1661 }
1662
1663 void
1664 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1665 {
1666         RouteGroup* group;
1667
1668         if (in_group_row_change) {
1669                 return;
1670         }
1671
1672         if ((group = (*iter)[group_columns.group]) == 0) {
1673                 return;
1674         }
1675
1676         std::string name = (*iter)[group_columns.text];
1677
1678         if (name != group->name()) {
1679                 group->set_name (name);
1680         }
1681
1682         bool hidden = !(*iter)[group_columns.visible];
1683
1684         if (hidden != group->is_hidden ()) {
1685                 group->set_hidden (hidden, this);
1686         }
1687 }
1688
1689 /** Called when a group model row is deleted, but also when the model is
1690  *  reordered by a user drag-and-drop; the latter is what we are
1691  *  interested in here.
1692  */
1693 void
1694 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1695 {
1696         if (_in_group_rebuild_or_clear) {
1697                 return;
1698         }
1699
1700         /* Re-write the session's route group list so that the new order is preserved */
1701
1702         list<RouteGroup*> new_list;
1703
1704         Gtk::TreeModel::Children children = group_model->children();
1705         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1706                 RouteGroup* g = (*i)[group_columns.group];
1707                 if (g) {
1708                         new_list.push_back (g);
1709                 }
1710         }
1711
1712         _session->reorder_route_groups (new_list);
1713 }
1714
1715
1716 void
1717 Mixer_UI::add_route_group (RouteGroup* group)
1718 {
1719         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1720         bool focus = false;
1721
1722         in_group_row_change = true;
1723
1724         TreeModel::Row row = *(group_model->append());
1725         row[group_columns.visible] = !group->is_hidden ();
1726         row[group_columns.group] = group;
1727         if (!group->name().empty()) {
1728                 row[group_columns.text] = group->name();
1729         } else {
1730                 row[group_columns.text] = _("unnamed");
1731                 focus = true;
1732         }
1733
1734         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1735
1736         if (focus) {
1737                 TreeViewColumn* col = group_display.get_column (0);
1738                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1739                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1740         }
1741
1742         _group_tabs->set_dirty ();
1743
1744         in_group_row_change = false;
1745 }
1746
1747 bool
1748 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1749 {
1750         using namespace Menu_Helpers;
1751
1752         if (Keyboard::is_context_menu_event (ev)) {
1753                 ARDOUR_UI::instance()->add_route ();
1754                 return true;
1755         }
1756
1757         return false;
1758 }
1759
1760 void
1761 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
1762 {
1763         printf ("Mixer_UI::scroller_drag_data_received\n");
1764         if (data.get_target() != "PluginFavoritePtr") {
1765                 context->drag_finish (false, false, time);
1766                 return;
1767         }
1768
1769         const void * d = data.get_data();
1770         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
1771
1772         PluginPresetList nfos;
1773         TreeView* source;
1774         tv->get_object_drag_data (nfos, &source);
1775
1776         Route::ProcessorList pl;
1777         bool ok = false;
1778
1779         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1780                 PluginPresetPtr ppp = (*i);
1781                 PluginInfoPtr pip = ppp->_pip;
1782                 if (!pip->is_instrument ()) {
1783                         continue;
1784                 }
1785                 ARDOUR_UI::instance()->session_add_midi_track (NULL, 1, _("MIDI"), Config->get_strict_io (), pip, ppp->_preset.valid ? &ppp->_preset : 0);
1786                 ok = true;
1787         }
1788
1789         context->drag_finish (ok, false, time);
1790 }
1791
1792 void
1793 Mixer_UI::set_strip_width (Width w, bool save)
1794 {
1795         _strip_width = w;
1796
1797         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1798                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1799         }
1800 }
1801
1802
1803 struct PluginStateSorter {
1804 public:
1805         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
1806                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
1807                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
1808                 if (aiter != _user.end() && biter != _user.end()) {
1809                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
1810                 }
1811                 if (aiter != _user.end()) {
1812                         return true;
1813                 }
1814                 if (biter != _user.end()) {
1815                         return false;
1816                 }
1817                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
1818         }
1819
1820         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
1821 private:
1822         std::list<std::string> _user;
1823 };
1824
1825 int
1826 Mixer_UI::set_state (const XMLNode& node, int version)
1827 {
1828         XMLProperty const * prop;
1829
1830         Tabbable::set_state (node, version);
1831
1832         if ((prop = node.property ("narrow-strips"))) {
1833                 if (string_is_affirmative (prop->value())) {
1834                         set_strip_width (Narrow);
1835                 } else {
1836                         set_strip_width (Wide);
1837                 }
1838         }
1839
1840         if ((prop = node.property ("show-mixer"))) {
1841                 if (string_is_affirmative (prop->value())) {
1842                        _visible = true;
1843                 }
1844         }
1845
1846         if ((prop = node.property ("maximised"))) {
1847                 bool yn = string_is_affirmative (prop->value());
1848                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
1849                 assert (act);
1850                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1851                 bool fs = tact && tact->get_active();
1852                 if (yn ^ fs) {
1853                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
1854                 }
1855         }
1856
1857         if ((prop = node.property ("show-mixer-list"))) {
1858                 bool yn = string_is_affirmative (prop->value());
1859                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
1860                 assert (act);
1861                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1862
1863                 /* do it twice to force the change */
1864                 tact->set_active (!yn);
1865                 tact->set_active (yn);
1866         }
1867
1868
1869         XMLNode* plugin_order;
1870         if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
1871                 store_current_favorite_order ();
1872                 std::list<string> order;
1873                 const XMLNodeList& kids = plugin_order->children("PluginInfo");
1874                 XMLNodeConstIterator i;
1875                 for (i = kids.begin(); i != kids.end(); ++i) {
1876                         if ((prop = (*i)->property ("unique-id"))) {
1877                                 std::string unique_id = prop->value();
1878                                 order.push_back (unique_id);
1879                                 if ((prop = (*i)->property ("expanded"))) {
1880                                         favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
1881                                 }
1882                         }
1883                 }
1884                 PluginStateSorter cmp (order);
1885                 favorite_order.sort (cmp);
1886                 sync_treeview_from_favorite_order ();
1887         }
1888         return 0;
1889 }
1890
1891 XMLNode&
1892 Mixer_UI::get_state ()
1893 {
1894         XMLNode* node = new XMLNode (X_("Mixer"));
1895         char buf[128];
1896
1897         node->add_child_nocopy (Tabbable::get_state());
1898
1899         snprintf(buf,sizeof(buf), "%f", paned_position_as_fraction (rhs_pane1, true));
1900         node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
1901         snprintf(buf,sizeof(buf), "%f", paned_position_as_fraction (rhs_pane2, true));
1902         node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
1903         snprintf(buf,sizeof(buf), "%f", paned_position_as_fraction (list_hpane, false));
1904         node->add_property(X_("mixer-list-hpane-pos"), string(buf));
1905         snprintf(buf,sizeof(buf), "%f", paned_position_as_fraction (inner_pane, false));
1906         node->add_property(X_("mixer-inner-pane-pos"), string(buf));
1907
1908         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1909         node->add_property ("show-mixer", _visible ? "yes" : "no");
1910         node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
1911         node->add_property ("maximised", _maximised ? "yes" : "no");
1912
1913         store_current_favorite_order ();
1914         XMLNode* plugin_order = new XMLNode ("PluginOrder");
1915         int cnt = 0;
1916         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
1917                 XMLNode* p = new XMLNode ("PluginInfo");
1918                 p->add_property ("sort", cnt);
1919                 p->add_property ("unique-id", (*i)->unique_id);
1920                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
1921                         p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
1922                 }
1923                 plugin_order->add_child_nocopy (*p);
1924         }
1925         node->add_child_nocopy (*plugin_order);
1926
1927         return *node;
1928 }
1929
1930 void
1931 Mixer_UI::pane_allocation_handler (Allocation& allocation, Gtk::Paned* which)
1932 {
1933         float pos;
1934         XMLProperty* prop = 0;
1935         XMLNode* geometry = ARDOUR_UI::instance()->mixer_settings();
1936         int height = default_height;
1937         static bool done[4] = { false, false, false, false };
1938
1939         /* Gtk::Paned behaves very oddly and rather undesirably. Setting the
1940          * position is a crapshoot if you time it incorrectly with the overall
1941          * sizing of the Paned. For example, if you might retrieve the size with
1942          * ::get_position() and then later call ::set_position() on a Paned at
1943          * a time when its allocation is different than it was when you retrieved
1944          * the position. The position will be interpreted as the size of the
1945          * first (top or left) child widget. If packing/size allocation later
1946          * resizes the Paned to a (final) smaller size, the position will be
1947          * used in ways that mean that the Paned ends up NOT in the same state
1948          * that it was in when you originally saved the position.
1949          *
1950          * Concrete example: Paned is 800 pixels wide, position is 400
1951          * (halfway).  Save position as 400. During program restart, set
1952          * position to 400, before Paned has been allocated any space. Paned
1953          * ends up initially sized to 1200 pixels.  Position is now 1/3 of the
1954          * way across/down.  Subsequent resizes will leave the position 1/3 of
1955          * the way across, rather than leaving it as a fixed pixel
1956          * position. Eventually, the Paned ends up 800 pixels wide/high again,
1957          * but the position is now 267, not 400.
1958          *
1959          * So ...
1960          *
1961          * We deal with this by using two strategies:
1962          *
1963          * 1) only set the position if the allocated size of the Paned is at
1964          * least as big as it needs to be for the position to make sense.
1965          *
1966          * 2) in recent versions of Ardour, save the position as a fraction,
1967          * and restore it using that fraction.
1968          *
1969          * So, we will only call ::set_position() AFTER the Paned is of a
1970          * sensible size, and then in addition, we will set the position in a
1971          * way that will be maintained as/when/if the Paned is resized.
1972          *
1973          * Once we've called ::set_position() on a Paned, we don't do it
1974          * again.
1975          */
1976
1977         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1978
1979                 if (done[0]) {
1980                         return;
1981                 }
1982
1983                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1984                         pos = height / 3;
1985                 } else {
1986                         pos = atof (prop->value());
1987                 }
1988
1989                 if (pos > 1.0f) {
1990                         /* older versions of Ardour stored absolute position */
1991                         if ((done[0] = (allocation.get_height() > pos))) {
1992                                 rhs_pane1.set_position (pos);
1993                         }
1994                 } else {
1995                         if ((done[0] = (allocation.get_height() > 1.0/pos))) {
1996                                 paned_set_position_as_fraction (rhs_pane1, pos, true);
1997                         }
1998                 }
1999         }
2000
2001         if (which == static_cast<Gtk::Paned*> (&rhs_pane2)) {
2002
2003                 if (done[1]) {
2004                         return;
2005                 }
2006
2007                 if (!geometry || (prop = geometry->property("mixer-rhs-pane2-pos")) == 0) {
2008                         pos = 2 * height / 3;
2009                 } else {
2010                         pos = atof (prop->value());
2011                 }
2012
2013                 if (pos > 1.0f) {
2014                         /* older versions of Ardour stored absolute position */
2015                         if ((done[1] = (allocation.get_height() > pos))) {
2016                                 rhs_pane2.set_position (pos);
2017                         }
2018                 } else {
2019                         if ((done[1] = (allocation.get_height() > 1.0/pos))) {
2020                                 paned_set_position_as_fraction (rhs_pane2, pos, true);
2021                         }
2022                 }
2023         }
2024
2025         if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
2026
2027                 if (done[2]) {
2028                         return;
2029                 }
2030
2031                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
2032                         pos = std::max ((float)100, rintf ((float) 125 * UIConfiguration::instance().get_ui_scale()));
2033                 } else {
2034                         pos = max (0.1, atof (prop->value ()));
2035                 }
2036
2037                 if (pos > 1.0f) {
2038                         if ((done[2] = (allocation.get_width() > pos))) {
2039                                 list_hpane.set_position (pos);
2040                         }
2041                 } else {
2042                         if ((done[2] = (allocation.get_width() > 1.0/pos))) {
2043                                 paned_set_position_as_fraction (list_hpane, pos, false);
2044                         }
2045                 }
2046         }
2047
2048         if (which == static_cast<Gtk::Paned*> (&inner_pane)) {
2049
2050                 if (done[3]) {
2051                         return;
2052                 }
2053
2054                 if (!geometry || (prop = geometry->property("mixer-inner-pane-pos")) == 0) {
2055                         pos = std::max ((float)100, rintf ((float) 125 * UIConfiguration::instance().get_ui_scale()));
2056                 } else {
2057                         pos = max (0.1, atof (prop->value ()));
2058                 }
2059
2060                 if (pos > 1.0f) {
2061                         /* older versions of Ardour stored absolute position */
2062                         if ((done[3] = (allocation.get_width() > pos))) {
2063                                 inner_pane.set_position (pos);
2064                         }
2065                 } else {
2066                         if ((done[3] = (allocation.get_width() > 1.0/pos))) {
2067                                 paned_set_position_as_fraction (inner_pane, pos, false);
2068                         }
2069                 }
2070         }
2071 }
2072
2073 void
2074 Mixer_UI::scroll_left ()
2075 {
2076         if (!scroller.get_hscrollbar()) return;
2077         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2078         /* stupid GTK: can't rely on clamping across versions */
2079         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
2080 }
2081
2082 void
2083 Mixer_UI::scroll_right ()
2084 {
2085         if (!scroller.get_hscrollbar()) return;
2086         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2087         /* stupid GTK: can't rely on clamping across versions */
2088         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
2089 }
2090
2091 bool
2092 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
2093 {
2094         switch (ev->direction) {
2095         case GDK_SCROLL_LEFT:
2096                 scroll_left ();
2097                 return true;
2098         case GDK_SCROLL_UP:
2099                 if (ev->state & Keyboard::TertiaryModifier) {
2100                         scroll_left ();
2101                         return true;
2102                 }
2103                 return false;
2104
2105         case GDK_SCROLL_RIGHT:
2106                 scroll_right ();
2107                 return true;
2108
2109         case GDK_SCROLL_DOWN:
2110                 if (ev->state & Keyboard::TertiaryModifier) {
2111                         scroll_right ();
2112                         return true;
2113                 }
2114                 return false;
2115         }
2116
2117         return false;
2118 }
2119
2120
2121 void
2122 Mixer_UI::parameter_changed (string const & p)
2123 {
2124         if (p == "show-group-tabs") {
2125                 bool const s = _session->config.get_show_group_tabs ();
2126                 if (s) {
2127                         _group_tabs->show ();
2128                 } else {
2129                         _group_tabs->hide ();
2130                 }
2131         } else if (p == "default-narrow_ms") {
2132                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2133                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2134                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2135                 }
2136         } else if (p == "remote-model") {
2137                 reset_remote_control_ids ();
2138         } else if (p == "use-monitor-bus") {
2139                 if (_session && !_session->monitor_out()) {
2140                         monitor_section_detached ();
2141                 }
2142         }
2143 }
2144
2145 void
2146 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2147 {
2148         g->set_active (a, this);
2149 }
2150
2151 PluginSelector*
2152 Mixer_UI::plugin_selector()
2153 {
2154 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2155         if (!_plugin_selector)
2156                 _plugin_selector = new PluginSelector (PluginManager::instance());
2157 #endif
2158
2159         return _plugin_selector;
2160 }
2161
2162 void
2163 Mixer_UI::setup_track_display ()
2164 {
2165         track_model = ListStore::create (track_columns);
2166         track_display.set_model (track_model);
2167         track_display.append_column (_("Strips"), track_columns.text);
2168         track_display.append_column (_("Show"), track_columns.visible);
2169         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2170         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2171         track_display.get_column (0)->set_expand(true);
2172         track_display.get_column (1)->set_expand(false);
2173         track_display.get_column (0)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2174         track_display.set_name (X_("EditGroupList"));
2175         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2176         track_display.set_reorderable (true);
2177         track_display.set_headers_visible (true);
2178         track_display.set_can_focus(false);
2179
2180         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2181         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2182
2183         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
2184         track_list_visible_cell->property_activatable() = true;
2185         track_list_visible_cell->property_radio() = false;
2186         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2187
2188         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2189
2190         track_display_scroller.add (track_display);
2191         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2192
2193         VBox* v = manage (new VBox);
2194         v->show ();
2195         v->pack_start (track_display_scroller, true, true);
2196
2197         Button* b = manage (new Button);
2198         b->show ();
2199         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
2200         w->show ();
2201         b->add (*w);
2202
2203         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
2204
2205         v->pack_start (*b, false, false);
2206
2207         track_display_frame.set_name("BaseFrame");
2208         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2209         track_display_frame.add (*v);
2210
2211         track_display_scroller.show();
2212         track_display_frame.show();
2213         track_display.show();
2214 }
2215
2216 void
2217 Mixer_UI::new_track_or_bus ()
2218 {
2219         ARDOUR_UI::instance()->add_route ();
2220 }
2221
2222 void
2223 Mixer_UI::update_title ()
2224 {
2225         if (!own_window()) {
2226                 return;
2227         }
2228
2229         if (_session) {
2230                 string n;
2231
2232                 if (_session->snap_name() != _session->name()) {
2233                         n = _session->snap_name ();
2234                 } else {
2235                         n = _session->name ();
2236                 }
2237
2238                 if (_session->dirty ()) {
2239                         n = "*" + n;
2240                 }
2241
2242                 WindowTitle title (n);
2243                 title += S_("Window|Mixer");
2244                 title += Glib::get_application_name ();
2245                 own_window()->set_title (title.get_string());
2246
2247         } else {
2248
2249                 WindowTitle title (S_("Window|Mixer"));
2250                 title += Glib::get_application_name ();
2251                 own_window()->set_title (title.get_string());
2252         }
2253 }
2254
2255 MixerStrip*
2256 Mixer_UI::strip_by_x (int x)
2257 {
2258         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2259                 int x1, x2, y;
2260
2261                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2262                 x2 = x1 + (*i)->get_width();
2263
2264                 if (x >= x1 && x <= x2) {
2265                         return (*i);
2266                 }
2267         }
2268
2269         return 0;
2270 }
2271
2272 void
2273 Mixer_UI::set_route_targets_for_operation ()
2274 {
2275         _route_targets.clear ();
2276
2277         if (!_selection.empty()) {
2278                 _route_targets = _selection.routes;
2279                 return;
2280         }
2281
2282 //  removed "implicit" selections of strips, after discussion on IRC
2283
2284 }
2285
2286 void
2287 Mixer_UI::monitor_section_going_away ()
2288 {
2289         if (_monitor_section) {
2290                 monitor_section_detached ();
2291                 out_packer.remove (_monitor_section->tearoff());
2292                 _monitor_section->set_session (0);
2293                 delete _monitor_section;
2294                 _monitor_section = 0;
2295         }
2296 }
2297
2298 void
2299 Mixer_UI::toggle_midi_input_active (bool flip_others)
2300 {
2301         boost::shared_ptr<RouteList> rl (new RouteList);
2302         bool onoff = false;
2303
2304         set_route_targets_for_operation ();
2305
2306         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
2307                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
2308
2309                 if (mt) {
2310                         rl->push_back ((*r)->route());
2311                         onoff = !mt->input_active();
2312                 }
2313         }
2314
2315         _session->set_exclusive_input_active (rl, onoff, flip_others);
2316 }
2317
2318 void
2319 Mixer_UI::maximise_mixer_space ()
2320 {
2321         if (!own_window()) {
2322                 return;
2323         }
2324
2325         if (_maximised) {
2326                 return;
2327         }
2328
2329         _window->fullscreen ();
2330         _maximised = true;
2331 }
2332
2333 void
2334 Mixer_UI::restore_mixer_space ()
2335 {
2336         if (!own_window()) {
2337                 return;
2338         }
2339
2340         if (!_maximised) {
2341                 return;
2342         }
2343
2344         own_window()->unfullscreen();
2345         _maximised = false;
2346 }
2347
2348 void
2349 Mixer_UI::monitor_section_attached ()
2350 {
2351         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2352         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2353         act->set_sensitive (true);
2354         tact->set_active ();
2355 }
2356
2357 void
2358 Mixer_UI::monitor_section_detached ()
2359 {
2360         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2361         act->set_sensitive (false);
2362 }
2363
2364 void
2365 Mixer_UI::store_current_favorite_order ()
2366 {
2367         typedef Gtk::TreeModel::Children type_children;
2368         type_children children = favorite_plugins_model->children();
2369         favorite_order.clear();
2370         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2371         {
2372                 Gtk::TreeModel::Row row = *iter;
2373                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2374                 favorite_order.push_back (ppp->_pip);
2375                 std::string name = row[favorite_plugins_columns.name];
2376                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2377         }
2378 }
2379
2380 void
2381 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2382 {
2383         Gtk::TreeModel::Row row = *iter;
2384         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2385         assert (ppp);
2386         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2387 }
2388
2389 void
2390 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2391 {
2392         PluginManager& manager (PluginManager::instance());
2393         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2394                 if (manager.get_status (*i) != PluginManager::Favorite) {
2395                         continue;
2396                 }
2397                 result.push_back (*i);
2398         }
2399 }
2400
2401 struct PluginCustomSorter {
2402 public:
2403         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2404                 PluginInfoList::const_iterator aiter = _user.begin();
2405                 PluginInfoList::const_iterator biter = _user.begin();
2406                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2407                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2408
2409                 if (aiter != _user.end() && biter != _user.end()) {
2410                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2411                 }
2412                 if (aiter != _user.end()) {
2413                         return true;
2414                 }
2415                 if (biter != _user.end()) {
2416                         return false;
2417                 }
2418                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2419         }
2420         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2421 private:
2422         PluginInfoList _user;
2423 };
2424
2425 void
2426 Mixer_UI::refill_favorite_plugins ()
2427 {
2428         PluginInfoList plugs;
2429         PluginManager& mgr (PluginManager::instance());
2430
2431 #ifdef LV2_SUPPORT
2432         refiller (plugs, mgr.lv2_plugin_info ());
2433 #endif
2434 #ifdef WINDOWS_VST_SUPPORT
2435         refiller (plugs, mgr.windows_vst_plugin_info ());
2436 #endif
2437 #ifdef LXVST_SUPPORT
2438         refiller (plugs, mgr.lxvst_plugin_info ());
2439 #endif
2440 #ifdef AUDIOUNIT_SUPPORT
2441         refiller (plugs, mgr.au_plugin_info ());
2442 #endif
2443         refiller (plugs, mgr.ladspa_plugin_info ());
2444         refiller (plugs, mgr.lua_plugin_info ());
2445
2446         store_current_favorite_order ();
2447
2448         PluginCustomSorter cmp (favorite_order);
2449         plugs.sort (cmp);
2450
2451         favorite_order = plugs;
2452
2453         sync_treeview_from_favorite_order ();
2454 }
2455
2456 void
2457 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2458 {
2459         TreeIter iter;
2460         if (!(iter = favorite_plugins_model->get_iter (path))) {
2461                 return;
2462         }
2463         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2464         if (!ppp) {
2465                 return;
2466         }
2467         PluginInfoPtr pip = ppp->_pip;
2468         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2469                 if (favorite_ui_state[pip->unique_id]) {
2470                         favorite_plugins_display.expand_row (path, true);
2471                 }
2472         }
2473 }
2474
2475 void
2476 Mixer_UI::sync_treeview_from_favorite_order ()
2477 {
2478         favorite_plugins_model->clear ();
2479         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2480                 PluginInfoPtr pip = (*i);
2481
2482                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2483                 newrow[favorite_plugins_columns.name] = (*i)->name;
2484                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2485                 if (!_session) {
2486                         continue;
2487                 }
2488
2489                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2490                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2491                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2492                         child_row[favorite_plugins_columns.name] = (*j).label;
2493                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2494                 }
2495                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2496                         if (favorite_ui_state[pip->unique_id]) {
2497                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2498                         }
2499                 }
2500         }
2501 }
2502
2503 void
2504 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2505 {
2506         using namespace Gtk::Menu_Helpers;
2507
2508         Gtk::Menu* m = manage (new Menu);
2509         MenuList& items = m->items ();
2510
2511         if (_selection.routes.empty()) {
2512                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
2513         } else {
2514                 items.push_back (MenuElem (_("Add at the top"),
2515                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
2516                 items.push_back (MenuElem (_("Add Pre-Fader"),
2517                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
2518                 items.push_back (MenuElem (_("Add Post-Fader"),
2519                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
2520                 items.push_back (MenuElem (_("Add at the end"),
2521                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
2522         }
2523
2524         items.push_back (SeparatorElem());
2525
2526         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
2527
2528         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2529         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
2530                 // we cannot currently delete AU presets
2531                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
2532                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
2533                 }
2534         }
2535
2536         m->popup (ev->button, ev->time);
2537 }
2538
2539 bool
2540 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
2541 {
2542         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
2543                 TreeModel::Path path;
2544                 TreeViewColumn* column;
2545                 int cellx, celly;
2546                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
2547                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2548                         if (selection) {
2549                                 selection->unselect_all();
2550                                 selection->select(path);
2551                         }
2552                 }
2553                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
2554                 if (ppp) {
2555                         popup_note_context_menu (ev);
2556                 }
2557         }
2558         return false;
2559 }
2560
2561
2562 PluginPresetPtr
2563 Mixer_UI::selected_plugin ()
2564 {
2565         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2566         if (!selection) {
2567                 return PluginPresetPtr();
2568         }
2569         Gtk::TreeModel::iterator iter = selection->get_selected();
2570         if (!iter) {
2571                 return PluginPresetPtr();
2572         }
2573         return (*iter)[favorite_plugins_columns.plugin];
2574 }
2575
2576 void
2577 Mixer_UI::add_selected_processor (ProcessorPosition pos)
2578 {
2579         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2580         if (ppp) {
2581                 add_favorite_processor (ppp, pos);
2582         }
2583 }
2584
2585 void
2586 Mixer_UI::delete_selected_preset ()
2587 {
2588         if (!_session) {
2589                 return;
2590         }
2591         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2592         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
2593                 return;
2594         }
2595         PluginPtr plugin = ppp->_pip->load (*_session);
2596         plugin->get_presets();
2597         plugin->remove_preset (ppp->_preset.label);
2598 }
2599
2600 void
2601 Mixer_UI::remove_selected_from_favorites ()
2602 {
2603         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2604         if (!ppp) {
2605                 return;
2606         }
2607         PluginManager::PluginStatusType status = PluginManager::Normal;
2608         PluginManager& manager (PluginManager::instance());
2609
2610         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2611         manager.save_statuses ();
2612 }
2613
2614 void
2615 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
2616 {
2617         TreeIter iter;
2618         if (!(iter = favorite_plugins_model->get_iter (path))) {
2619                 return;
2620         }
2621         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2622         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
2623 }
2624
2625 void
2626 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
2627 {
2628         if (!_session || _selection.routes.empty()) {
2629                 return;
2630         }
2631
2632         PluginInfoPtr pip = ppp->_pip;
2633         for (RouteUISelection::iterator i = _selection.routes.begin(); i != _selection.routes.end(); ++i) {
2634                 boost::shared_ptr<ARDOUR::Route> rt = (*i)->route();
2635                 if (!rt) { continue; }
2636
2637                 PluginPtr p = pip->load (*_session);
2638                 if (!p) { continue; }
2639
2640                 if (ppp->_preset.valid) {
2641                         p->load_preset (ppp->_preset);
2642                 }
2643
2644                 Route::ProcessorStreams err;
2645                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2646
2647                 switch (pos) {
2648                         case AddTop:
2649                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
2650                                 break;
2651                         case AddPreFader:
2652                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
2653                                 break;
2654                         case AddPostFader:
2655                                 {
2656                                         int idx = 0;
2657                                         int pos = 0;
2658                                         for (;;++idx) {
2659                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
2660                                                 if (!np) {
2661                                                         break;
2662                                                 }
2663                                                 if (!np->display_to_user()) {
2664                                                         continue;
2665                                                 }
2666                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
2667                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
2668                                                         break;
2669                                                 }
2670                                                 ++pos;
2671                                         }
2672                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
2673                                 }
2674                                 break;
2675                         case AddBottom:
2676                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
2677                                 break;
2678                 }
2679         }
2680 }
2681
2682 bool
2683 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
2684 {
2685         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
2686                 return false;
2687         }
2688
2689         // only allow to re-order top-level items
2690         TreePath src;
2691         if (TreePath::get_from_selection_data (data, src)) {
2692                 if (src.up() && src.up()) {
2693                         return false;
2694                 }
2695         }
2696
2697         // don't allow to drop as child-rows.
2698         Gtk::TreeModel::Path _dest = dest; // un const
2699         const bool is_child = _dest.up (); // explicit bool for clang
2700         if (!is_child || _dest.empty ()) {
2701                 return true;
2702         }
2703         return false;
2704 }
2705
2706 void
2707 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
2708 {
2709         if (data.get_target() != "PluginPresetPtr") {
2710                 return;
2711         }
2712         if (data.get_length() != sizeof (PluginPresetPtr)) {
2713                 return;
2714         }
2715         const void *d = data.get_data();
2716         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
2717
2718         PluginManager::PluginStatusType status = PluginManager::Favorite;
2719         PluginManager& manager (PluginManager::instance());
2720
2721         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2722         manager.save_statuses ();
2723 }
2724
2725 void
2726 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
2727 {
2728         /* call protected MixerActor:: method */
2729         vca_assign (vca);
2730 }
2731
2732 void
2733 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
2734 {
2735         /* call protected MixerActor:: method */
2736         vca_unassign (vca);
2737 }