gtk2_ardour/mixer_ui.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <algorithm>
  25 #include <map>
  26 #include <sigc++/bind.h>
  27
  28 #include <gtkmm/accelmap.h>
  29
  30 #include "pbd/convert.h"
  31 #include "pbd/stacktrace.h"
  32 #include "pbd/unwind.h"
  33
  34 #include <glibmm/threads.h>
  35
  36 #include <gtkmm2ext/gtk_ui.h>
  37 #include <gtkmm2ext/keyboard.h>
  38 #include <gtkmm2ext/utils.h>
  39 #include <gtkmm2ext/tearoff.h>
  40 #include <gtkmm2ext/window_title.h>
  41 #include <gtkmm2ext/doi.h>
  42
  43 #include "ardour/amp.h"
  44 #include "ardour/debug.h"
  45 #include "ardour/audio_track.h"
  46 #include "ardour/midi_track.h"
  47 #include "ardour/plugin_manager.h"
  48 #include "ardour/route_group.h"
  49 #include "ardour/session.h"
  50 #include "ardour/vca.h"
  51 #include "ardour/vca_manager.h"
  52
  53 #include "keyboard.h"
  54 #include "mixer_ui.h"
  55 #include "mixer_strip.h"
  56 #include "monitor_section.h"
  57 #include "plugin_selector.h"
  58 #include "public_editor.h"
  59 #include "mouse_cursors.h"
  60 #include "ardour_ui.h"
  61 #include "prompter.h"
  62 #include "utils.h"
  63 #include "route_sorter.h"
  64 #include "actions.h"
  65 #include "gui_thread.h"
  66 #include "mixer_group_tabs.h"
  67 #include "route_sorter.h"
  68 #include "timers.h"
  69 #include "ui_config.h"
  70 #include "vca_master_strip.h"
  71
  72 #include "i18n.h"
  73
  74 using namespace ARDOUR;
  75 using namespace ARDOUR_UI_UTILS;
  76 using namespace PBD;
  77 using namespace Gtk;
  78 using namespace Glib;
  79 using namespace Gtkmm2ext;
  80 using namespace std;
  81
  82 using PBD::atoi;
  83 using PBD::Unwinder;
  84
  85 Mixer_UI* Mixer_UI::_instance = 0;
  86
  87 Mixer_UI*
  88 Mixer_UI::instance ()
  89 {
  90         if (!_instance) {
  91                 _instance  = new Mixer_UI;
  92         }
  93
  94         return _instance;
  95 }
  96
  97 Mixer_UI::Mixer_UI ()
  98         : Tabbable (_content, _("Mixer"))
  99         , no_track_list_redisplay (false)
 100         , in_group_row_change (false)
 101         , track_menu (0)
 102         , _monitor_section (0)
 103         , _plugin_selector (0)
 104         , _strip_width (UIConfiguration::instance().get_default_narrow_ms() ? Narrow : Wide)
 105         , ignore_reorder (false)
 106         , _in_group_rebuild_or_clear (false)
 107         , _route_deletion_in_progress (false)
 108         , _following_editor_selection (false)
 109         , _maximised (false)
 110         , _show_mixer_list (true)
 111 {
 112         PresentationInfo::Change.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_presentation_info, this), gui_context());
 113
 114         /* bindings was already set in MixerActor constructor */
 115
 116         _content.set_data ("ardour-bindings", bindings);
 117
 118         scroller.set_can_default (true);
 119         // set_default (scroller);
 120
 121         scroller_base.set_flags (Gtk::CAN_FOCUS);
 122         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 123         scroller_base.set_name ("MixerWindow");
 124         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 125
 126         /* set up drag-n-drop */
 127         vector<TargetEntry> target_table;
 128         target_table.push_back (TargetEntry ("PluginFavoritePtr"));
 129         scroller_base.drag_dest_set (target_table);
 130         scroller_base.signal_drag_data_received().connect (sigc::mem_fun(*this, &Mixer_UI::scroller_drag_data_received));
 131
 132         // add as last item of strip packer
 133         strip_packer.pack_end (scroller_base, true, true);
 134
 135         _group_tabs = new MixerGroupTabs (this);
 136         VBox* b = manage (new VBox);
 137         b->pack_start (*_group_tabs, PACK_SHRINK);
 138         b->pack_start (strip_packer);
 139         b->show_all ();
 140
 141         scroller.add (*b);
 142         scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 143
 144         setup_track_display ();
 145
 146         group_model = ListStore::create (group_columns);
 147         group_display.set_model (group_model);
 148         group_display.append_column (_("Show"), group_columns.visible);
 149         group_display.append_column (_("Group"), group_columns.text);
 150         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 151         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 152         group_display.get_column (0)->set_expand(false);
 153         group_display.get_column (1)->set_expand(true);
 154         group_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
 155         group_display.set_name ("EditGroupList");
 156         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 157         group_display.set_reorderable (true);
 158         group_display.set_headers_visible (true);
 159         group_display.set_rules_hint (true);
 160         group_display.set_can_focus(false);
 161
 162         /* name is directly editable */
 163
 164         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
 165         name_cell->property_editable() = true;
 166         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 167
 168         /* use checkbox for the active column */
 169
 170         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (0));
 171         active_cell->property_activatable() = true;
 172         active_cell->property_radio() = false;
 173
 174         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 175         /* We use this to notice drag-and-drop reorders of the group list */
 176         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 177         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 178
 179         group_display_scroller.add (group_display);
 180         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 181
 182         HBox* route_group_display_button_box = manage (new HBox());
 183
 184         Button* route_group_add_button = manage (new Button ());
 185         Button* route_group_remove_button = manage (new Button ());
 186
 187         Widget* w;
 188
 189         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 190         w->show();
 191         route_group_add_button->add (*w);
 192
 193         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 194         w->show();
 195         route_group_remove_button->add (*w);
 196
 197         route_group_display_button_box->set_homogeneous (true);
 198
 199         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 200         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 201
 202         route_group_display_button_box->add (*route_group_add_button);
 203         route_group_display_button_box->add (*route_group_remove_button);
 204
 205         group_display_vbox.pack_start (group_display_scroller, true, true);
 206         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 207
 208         group_display_frame.set_name ("BaseFrame");
 209         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 210         group_display_frame.add (group_display_vbox);
 211
 212
 213         list<TargetEntry> target_list;
 214         target_list.push_back (TargetEntry ("PluginPresetPtr"));
 215
 216         favorite_plugins_model = PluginTreeStore::create (favorite_plugins_columns);
 217         favorite_plugins_display.set_model (favorite_plugins_model);
 218         favorite_plugins_display.append_column (_("Favorite Plugins"), favorite_plugins_columns.name);
 219         favorite_plugins_display.set_name ("EditGroupList");
 220         favorite_plugins_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 221         favorite_plugins_display.set_reorderable (false);
 222         favorite_plugins_display.set_headers_visible (true);
 223         favorite_plugins_display.set_rules_hint (true);
 224         favorite_plugins_display.set_can_focus (false);
 225         favorite_plugins_display.set_tooltip_column (0);
 226         favorite_plugins_display.add_object_drag (favorite_plugins_columns.plugin.index(), "PluginFavoritePtr");
 227         favorite_plugins_display.set_drag_column (favorite_plugins_columns.name.index());
 228         favorite_plugins_display.add_drop_targets (target_list);
 229         favorite_plugins_display.signal_row_activated().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_activated));
 230         favorite_plugins_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_button_press), false);
 231         favorite_plugins_display.signal_drop.connect (sigc::mem_fun (*this, &Mixer_UI::plugin_drop));
 232         favorite_plugins_display.signal_row_expanded().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 233         favorite_plugins_display.signal_row_collapsed().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 234         favorite_plugins_model->signal_row_has_child_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::sync_treeview_favorite_ui_state));
 235
 236         favorite_plugins_scroller.add (favorite_plugins_display);
 237         favorite_plugins_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 238
 239         favorite_plugins_frame.set_name ("BaseFrame");
 240         favorite_plugins_frame.set_shadow_type (Gtk::SHADOW_IN);
 241         favorite_plugins_frame.add (favorite_plugins_scroller);
 242
 243         rhs_pane1.add (favorite_plugins_frame);
 244         rhs_pane1.add (track_display_frame);
 245
 246         rhs_pane2.add (rhs_pane1);
 247         rhs_pane2.add (group_display_frame);
 248
 249         list_vpacker.pack_start (rhs_pane2, true, true);
 250
 251         string vca_text = _("Control Masters");
 252         Gtk::HBox* vca_top_padding = manage (new Gtk::HBox);
 253         vca_top_padding->set_size_request (-1, 2);
 254         vca_vpacker.pack_start (*vca_top_padding, false, false);
 255
 256         vca_label.set_text (vca_text);
 257         vca_label_bar.set_size_request (-1, 16); /* must match height in GroupTabs::set_size_request() */
 258
 259         vca_label_bar.set_name (X_("VCALabelBar"));
 260         vca_label_bar.add (vca_label);
 261
 262         vca_vpacker.pack_start (vca_label_bar, false, false);
 263
 264         vca_scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 265         vca_scroller_base.set_name (X_("MixerWindow"));
 266         vca_scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::masters_scroller_button_release), false);
 267         vca_hpacker.pack_end (vca_scroller_base, true, true);
 268
 269         vca_scroller.add (vca_hpacker);
 270         vca_scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 271         vca_scroller.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 272
 273         vca_vpacker.pack_start (vca_scroller, true, true);
 274
 275         inner_pane.add (scroller);
 276         inner_pane.add (vca_vpacker);
 277
 278         global_hpacker.pack_start (inner_pane, true, true);
 279         global_hpacker.pack_start (out_packer, false, false);
 280
 281         list_hpane.set_check_divider_position (true);
 282         list_hpane.add (list_vpacker);
 283         list_hpane.add (global_hpacker);
 284
 285
 286         XMLNode const * settings = ARDOUR_UI::instance()->mixer_settings();
 287         XMLProperty const * prop;
 288         float fract;
 289
 290         {
 291                 LocaleGuard lg;
 292
 293                 if (!settings || ((prop = settings->property ("mixer-rhs-pane1-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 294                         rhs_pane1.set_divider (0, 0.6f);
 295                 } else {
 296                         rhs_pane1.set_divider (0, fract);
 297                 }
 298                 if (!settings || ((prop = settings->property ("mixer-rhs-pane2-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 299                         rhs_pane2.set_divider (0, 0.7f);
 300                 } else {
 301                         rhs_pane2.set_divider (0, fract);
 302                 }
 303                 if (!settings || ((prop = settings->property ("mixer-list-hpane-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 304                         list_hpane.set_divider (0, 0.2f);
 305                 } else {
 306                         list_hpane.set_divider (0, fract);
 307                 }
 308                 if (!settings || ((prop = settings->property ("mixer-inner-pane-pos")) == 0)  || ((fract = atof (prop->value())) > 1.0)) {
 309                         inner_pane.set_divider (0, 0.8f);
 310                 } else {
 311                         inner_pane.set_divider (0, atof (prop->value()));
 312                 }
 313         }
 314
 315         rhs_pane1.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 316         rhs_pane2.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 317         list_hpane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 318         inner_pane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 319
 320         _content.pack_start (list_hpane, true, true);
 321
 322         update_title ();
 323
 324         route_group_display_button_box->show();
 325         route_group_add_button->show();
 326         route_group_remove_button->show();
 327
 328         _content.show ();
 329         _content.set_name ("MixerWindow");
 330
 331         global_hpacker.show();
 332         scroller.show();
 333         scroller_base.show();
 334         scroller_hpacker.show();
 335         mixer_scroller_vpacker.show();
 336         list_vpacker.show();
 337         group_display_button_label.show();
 338         group_display_button.show();
 339         group_display_scroller.show();
 340         favorite_plugins_scroller.show();
 341         group_display_vbox.show();
 342         group_display_frame.show();
 343         favorite_plugins_frame.show();
 344         rhs_pane1.show();
 345         rhs_pane2.show();
 346         strip_packer.show();
 347         inner_pane.show();
 348         vca_top_padding->show ();
 349         vca_scroller.show();
 350         vca_vpacker.show();
 351         vca_hpacker.show();
 352         vca_label_bar.show();
 353         vca_label.show();
 354         vca_scroller_base.show();
 355         out_packer.show();
 356         list_hpane.show();
 357         group_display.show();
 358         favorite_plugins_display.show();
 359
 360         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 361
 362         /* handle escape */
 363
 364         ARDOUR_UI::instance()->Escape.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::escape, this), gui_context());
 365
 366 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 367         _plugin_selector = new PluginSelector (PluginManager::instance ());
 368 #else
 369 #error implement deferred Plugin-Favorite list
 370 #endif
 371         PluginManager::instance ().PluginListChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 372         PluginManager::instance ().PluginStatusesChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 373         ARDOUR::Plugin::PresetsChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 374 }
 375
 376 Mixer_UI::~Mixer_UI ()
 377 {
 378         if (_monitor_section) {
 379                 monitor_section_detached ();
 380                 delete _monitor_section;
 381         }
 382         delete _plugin_selector;
 383 }
 384
 385 void
 386 Mixer_UI::escape ()
 387 {
 388         select_none ();
 389 }
 390
 391 void
 392 Mixer_UI::track_editor_selection ()
 393 {
 394         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 395 }
 396
 397 Gtk::Window*
 398 Mixer_UI::use_own_window (bool and_fill_it)
 399 {
 400         bool new_window = !own_window();
 401
 402         Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
 403
 404
 405         if (win && new_window) {
 406                 win->set_name ("MixerWindow");
 407                 ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Mixer"), this);
 408                 win->signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_scroll_event), false);
 409                 win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
 410                 win->set_data ("ardour-bindings", bindings);
 411                 update_title ();
 412         }
 413
 414         return win;
 415 }
 416
 417 void
 418 Mixer_UI::show_window ()
 419 {
 420         Tabbable::show_window ();
 421
 422         /* show/hide group tabs as required */
 423         parameter_changed ("show-group-tabs");
 424
 425         /* now reset each strips width so the right widgets are shown */
 426
 427         TreeModel::Children rows = track_model->children();
 428         TreeModel::Children::iterator ri;
 429
 430         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 431                 AxisView* av = (*ri)[stripable_columns.strip];
 432                 MixerStrip* ms = dynamic_cast<MixerStrip*> (av);
 433                 if (!ms) {
 434                         continue;
 435                 }
 436                 ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 437                 /* Fix visibility of mixer strip stuff */
 438                 ms->parameter_changed (X_("mixer-element-visibility"));
 439         }
 440
 441         /* force focus into main area */
 442         scroller_base.grab_focus ();
 443 }
 444
 445 void
 446 Mixer_UI::remove_master (VCAMasterStrip* vms)
 447 {
 448         if (_session && _session->deletion_in_progress()) {
 449                 /* its all being taken care of */
 450                 return;
 451         }
 452
 453         TreeModel::Children rows = track_model->children();
 454         TreeModel::Children::iterator ri;
 455
 456         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 457                 if ((*ri)[stripable_columns.strip] == vms) {
 458                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 459                         track_model->erase (ri);
 460                         break;
 461                 }
 462         }
 463 }
 464
 465 bool
 466 Mixer_UI::masters_scroller_button_release (GdkEventButton* ev)
 467 {
 468         using namespace Menu_Helpers;
 469
 470         if (Keyboard::is_context_menu_event (ev)) {
 471                 ARDOUR_UI::instance()->add_route ();
 472                 return true;
 473         }
 474
 475         return false;
 476 }
 477
 478 void
 479 Mixer_UI::add_masters (VCAList& vlist)
 480 {
 481         StripableList sl;
 482
 483         for (VCAList::iterator v = vlist.begin(); v != vlist.end(); ++v) {
 484                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
 485         }
 486
 487         add_stripables (sl);
 488 }
 489
 490 void
 491 Mixer_UI::add_routes (RouteList& rlist)
 492 {
 493         StripableList sl;
 494
 495         for (RouteList::iterator r = rlist.begin(); r != rlist.end(); ++r) {
 496                 sl.push_back (*r);
 497         }
 498
 499         add_stripables (sl);
 500 }
 501
 502 void
 503 Mixer_UI::add_stripables (StripableList& slist)
 504 {
 505         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 506         bool from_scratch = (track_model->children().size() == 0);
 507         uint32_t nroutes = 0;
 508
 509         slist.sort (StripablePresentationInfoSorter());
 510
 511         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 512                 boost::shared_ptr<Stripable> s = (*it)[stripable_columns.stripable];
 513
 514                 if (!s) {
 515                         continue;
 516                 }
 517
 518                 nroutes++;
 519
 520                 if (s->presentation_info().order() == (slist.front()->presentation_info().order() + slist.size())) {
 521                         insert_iter = it;
 522                         break;
 523                 }
 524         }
 525
 526         MixerStrip* strip;
 527
 528
 529         try {
 530                 PBD::Unwinder<bool> uw (no_track_list_redisplay, true);
 531
 532                 track_display.set_model (Glib::RefPtr<ListStore>());
 533
 534                 for (StripableList::iterator s = slist.begin(); s != slist.end(); ++s) {
 535
 536                         boost::shared_ptr<Route> route;
 537                         boost::shared_ptr<VCA> vca;
 538
 539                         if ((vca  = boost::dynamic_pointer_cast<VCA> (*s))) {
 540
 541                                 VCAMasterStrip* vms = new VCAMasterStrip (_session, vca);
 542
 543                                 TreeModel::Row row = *(track_model->append());
 544
 545                                 row[stripable_columns.text] = vca->name();
 546                                 row[stripable_columns.visible] = vms->marked_for_display ();
 547                                 row[stripable_columns.strip] = vms;
 548                                 row[stripable_columns.stripable] = vca;
 549
 550                                 vms->CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_master, this, _1), gui_context());
 551
 552                         } else if ((route = boost::dynamic_pointer_cast<Route> (*s))) {
 553
 554                                 if (route->is_auditioner()) {
 555                                         continue;
 556                                 }
 557
 558                                 if (route->is_monitor()) {
 559
 560                                         if (!_monitor_section) {
 561                                                 _monitor_section = new MonitorSection (_session);
 562
 563                                                 XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 564                                                 if (mnode) {
 565                                                         _monitor_section->tearoff().set_state (*mnode);
 566                                                 }
 567                                         }
 568
 569                                         out_packer.pack_end (_monitor_section->tearoff(), false, false);
 570                                         _monitor_section->set_session (_session);
 571                                         _monitor_section->tearoff().show_all ();
 572
 573                                         _monitor_section->tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
 574                                         _monitor_section->tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
 575
 576                                         monitor_section_attached ();
 577
 578                                         route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 579
 580                                         /* no regular strip shown for control out */
 581
 582                                         continue;
 583                                 }
 584
 585                                 strip = new MixerStrip (*this, _session, route);
 586                                 strips.push_back (strip);
 587
 588                                 UIConfiguration::instance().get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 589
 590                                 if (strip->width_owner() != strip) {
 591                                         strip->set_width_enum (_strip_width, this);
 592                                 }
 593
 594                                 show_strip (strip);
 595
 596                                 if (!route->is_master()) {
 597
 598                                         TreeModel::Row row = *(track_model->insert (insert_iter));
 599
 600                                         row[stripable_columns.text] = route->name();
 601                                         row[stripable_columns.visible] = strip->marked_for_display();
 602                                         row[stripable_columns.stripable] = route;
 603                                         row[stripable_columns.strip] = strip;
 604
 605                                         if (nroutes != 0) {
 606                                                 _selection.add (strip);
 607                                         }
 608
 609                                 } else {
 610
 611                                         out_packer.pack_start (*strip, false, false);
 612                                         strip->set_packed (true);
 613                                 }
 614
 615                                 strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 616                                 strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 617                         }
 618
 619                         (*s)->presentation_info().PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 620                         (*s)->PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 621                                                 }
 622
 623         } catch (const std::exception& e) {
 624                 error << string_compose (_("Error adding GUI elements for new tracks/busses %1"), e.what()) << endmsg;
 625         }
 626
 627         track_display.set_model (track_model);
 628
 629         if (!from_scratch) {
 630                 sync_presentation_info_from_treeview ();
 631         }
 632
 633         redisplay_track_list ();
 634 }
 635
 636 void
 637 Mixer_UI::deselect_all_strip_processors ()
 638 {
 639         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 640                 (*i)->deselect_all_processors();
 641         }
 642 }
 643
 644 void
 645 Mixer_UI::select_strip (MixerStrip& ms, bool add)
 646 {
 647         if (add) {
 648                 _selection.add (&ms);
 649         } else {
 650                 _selection.set (&ms);
 651         }
 652 }
 653
 654 void
 655 Mixer_UI::select_none ()
 656 {
 657         _selection.clear_routes();
 658         deselect_all_strip_processors();
 659 }
 660
 661 void
 662 Mixer_UI::delete_processors ()
 663 {
 664         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 665                 (*i)->delete_processors();
 666         }
 667 }
 668
 669
 670 void
 671 Mixer_UI::remove_strip (MixerStrip* strip)
 672 {
 673         if (_session && _session->deletion_in_progress()) {
 674                 /* its all being taken care of */
 675                 return;
 676         }
 677
 678         TreeModel::Children rows = track_model->children();
 679         TreeModel::Children::iterator ri;
 680         list<MixerStrip *>::iterator i;
 681
 682         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 683                 strips.erase (i);
 684         }
 685
 686         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 687                 if ((*ri)[stripable_columns.strip] == strip) {
 688                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 689                         track_model->erase (ri);
 690                         break;
 691                 }
 692         }
 693 }
 694
 695 void
 696 Mixer_UI::sync_presentation_info_from_treeview ()
 697 {
 698         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 699                 return;
 700         }
 701
 702         TreeModel::Children rows = track_model->children();
 703
 704         if (rows.empty()) {
 705                 return;
 706         }
 707
 708         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync presentation info from treeview\n");
 709
 710         TreeModel::Children::iterator ri;
 711         bool change = false;
 712         uint32_t order = 0;
 713
 714         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 715                 bool visible = (*ri)[stripable_columns.visible];
 716                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 717
 718                 if (!stripable) {
 719                         continue;
 720                 }
 721
 722                 /* Monitor and Auditioner do not get their presentation
 723                  * info reset here.
 724                  */
 725
 726                 if (stripable->is_monitor() || stripable->is_auditioner()) {
 727                         continue;
 728                 }
 729
 730                 /* Master also doesn't get set here but since the editor allows
 731                  * it to be reordered, we need to preserve its ordering.
 732                  */
 733
 734                 stripable->presentation_info().set_hidden (!visible);
 735
 736                 if (order != stripable->presentation_info().order()) {
 737                         stripable->set_presentation_order_explicit (order);
 738                         change = true;
 739                 }
 740
 741                 ++order;
 742         }
 743
 744         if (change) {
 745                 DEBUG_TRACE (DEBUG::OrderKeys, "... notify PI change from mixer GUI\n");
 746                 _session->notify_presentation_info_change ();
 747         }
 748 }
 749
 750 void
 751 Mixer_UI::sync_treeview_from_presentation_info ()
 752 {
 753         if (!_session || _session->deletion_in_progress()) {
 754                 return;
 755         }
 756
 757         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from presentation info.\n");
 758
 759         /* we could get here after either a change in the Mixer or Editor sort
 760          * order, but either way, the mixer order keys reflect the intended
 761          * order for the GUI, so reorder the treeview model to match it.
 762          */
 763
 764         vector<int> neworder;
 765         TreeModel::Children rows = track_model->children();
 766         uint32_t old_order = 0;
 767         bool changed = false;
 768
 769         if (rows.empty()) {
 770                 return;
 771         }
 772
 773         OrderingKeys sorted;
 774
 775         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 776                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 777                 sorted.push_back (OrderKeys (old_order, stripable->presentation_info().order()));
 778         }
 779
 780         SortByNewDisplayOrder cmp;
 781
 782         sort (sorted.begin(), sorted.end(), cmp);
 783         neworder.assign (sorted.size(), 0);
 784
 785         uint32_t n = 0;
 786
 787         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 788
 789                 neworder[n] = sr->old_display_order;
 790
 791                 if (sr->old_display_order != n) {
 792                         changed = true;
 793                 }
 794         }
 795
 796         if (changed) {
 797                 Unwinder<bool> uw (ignore_reorder, true);
 798                 track_model->reorder (neworder);
 799         }
 800
 801         redisplay_track_list ();
 802 }
 803
 804 void
 805 Mixer_UI::follow_editor_selection ()
 806 {
 807         if (_following_editor_selection) {
 808                 return;
 809         }
 810
 811         _following_editor_selection = true;
 812         _selection.block_routes_changed (true);
 813
 814         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 815
 816         _selection.clear_routes ();
 817
 818         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 819                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 820                 if (rtav) {
 821                         MixerStrip* ms = strip_by_route (rtav->route());
 822                         if (ms) {
 823                                 _selection.add (ms);
 824                         }
 825                 }
 826         }
 827
 828         _following_editor_selection = false;
 829         _selection.block_routes_changed (false);
 830 }
 831
 832
 833 MixerStrip*
 834 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 835 {
 836         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 837                 if ((*i)->route() == r) {
 838                         return (*i);
 839                 }
 840         }
 841
 842         return 0;
 843 }
 844
 845 bool
 846 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 847 {
 848         if (ev->button == 1) {
 849                 if (_selection.selected (strip)) {
 850                         /* primary-click: toggle selection state of strip */
 851                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 852                                 _selection.remove (strip);
 853                         } else if (_selection.routes.size() > 1) {
 854                                 /* de-select others */
 855                                 _selection.set (strip);
 856                         }
 857                 } else {
 858                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 859                                 _selection.add (strip);
 860                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 861
 862                                 /* extend selection */
 863
 864                                 vector<MixerStrip*> tmp;
 865                                 bool accumulate = false;
 866                                 bool found_another = false;
 867
 868                                 tmp.push_back (strip);
 869
 870                                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 871                                         if ((*i) == strip) {
 872                                                 /* hit clicked strip, start accumulating till we hit the first
 873                                                    selected strip
 874                                                 */
 875                                                 if (accumulate) {
 876                                                         /* done */
 877                                                         break;
 878                                                 } else {
 879                                                         accumulate = true;
 880                                                 }
 881                                         } else if (_selection.selected (*i)) {
 882                                                 /* hit selected strip. if currently accumulating others,
 883                                                    we're done. if not accumulating others, start doing so.
 884                                                 */
 885                                                 found_another = true;
 886                                                 if (accumulate) {
 887                                                         /* done */
 888                                                         break;
 889                                                 } else {
 890                                                         accumulate = true;
 891                                                 }
 892                                         } else {
 893                                                 if (accumulate) {
 894                                                         tmp.push_back (*i);
 895                                                 }
 896                                         }
 897                                 }
 898
 899                                 if (found_another) {
 900                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 901                                                 _selection.add (*i);
 902                                         }
 903                                 } else
 904                                         _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
 905                         } else {
 906                                 _selection.set (strip);
 907                         }
 908                 }
 909         }
 910
 911         return true;
 912 }
 913
 914 void
 915 Mixer_UI::set_session (Session* sess)
 916 {
 917         SessionHandlePtr::set_session (sess);
 918
 919         if (_plugin_selector) {
 920                 _plugin_selector->set_session (_session);
 921         }
 922
 923         _group_tabs->set_session (sess);
 924
 925         if (!_session) {
 926                 return;
 927         }
 928
 929         refill_favorite_plugins();
 930
 931         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 932         set_state (*node, 0);
 933
 934         update_title ();
 935
 936         initial_track_display ();
 937
 938         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_routes, this, _1), gui_context());
 939         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 940         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 941         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 942         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 943         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 944         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 945
 946         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_masters, this, _1), gui_context());
 947
 948         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 949
 950         route_groups_changed ();
 951
 952         if (_visible) {
 953                 show_window();
 954         }
 955         start_updating ();
 956 }
 957
 958 void
 959 Mixer_UI::session_going_away ()
 960 {
 961         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 962
 963         _in_group_rebuild_or_clear = true;
 964         group_model->clear ();
 965         _in_group_rebuild_or_clear = false;
 966
 967         _selection.clear ();
 968         track_model->clear ();
 969
 970         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 971                 delete (*i);
 972         }
 973
 974         if (_monitor_section) {
 975                 _monitor_section->tearoff().hide_visible ();
 976         }
 977
 978         monitor_section_detached ();
 979
 980         strips.clear ();
 981
 982         stop_updating ();
 983
 984         SessionHandlePtr::session_going_away ();
 985
 986         _session = 0;
 987         update_title ();
 988 }
 989
 990 void
 991 Mixer_UI::track_visibility_changed (std::string const & path)
 992 {
 993         if (_session && _session->deletion_in_progress()) {
 994                 return;
 995         }
 996
 997         TreeIter iter;
 998
 999         if ((iter = track_model->get_iter (path))) {
1000
1001                 AxisView* av = (*iter)[stripable_columns.strip];
1002                 bool visible = (*iter)[stripable_columns.visible];
1003
1004                 if (av->set_marked_for_display (!visible)) {
1005                         update_track_visibility ();
1006                 }
1007         }
1008 }
1009
1010 void
1011 Mixer_UI::update_track_visibility ()
1012 {
1013         TreeModel::Children rows = track_model->children();
1014         TreeModel::Children::iterator i;
1015
1016         {
1017                 Unwinder<bool> uw (no_track_list_redisplay, true);
1018
1019                 for (i = rows.begin(); i != rows.end(); ++i) {
1020                         AxisView* av = (*i)[stripable_columns.strip];
1021                         (*i)[stripable_columns.visible] = av->marked_for_display ();
1022                 }
1023
1024                 /* force presentation catch up with visibility changes
1025                  */
1026
1027                 sync_presentation_info_from_treeview ();
1028         }
1029
1030         redisplay_track_list ();
1031 }
1032
1033 void
1034 Mixer_UI::show_strip (MixerStrip* ms)
1035 {
1036         TreeModel::Children rows = track_model->children();
1037         TreeModel::Children::iterator i;
1038
1039         for (i = rows.begin(); i != rows.end(); ++i) {
1040
1041                 AxisView* av = (*i)[stripable_columns.strip];
1042                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1043                 if (strip == ms) {
1044                         (*i)[stripable_columns.visible] = true;
1045                         redisplay_track_list ();
1046                         break;
1047                 }
1048         }
1049 }
1050
1051 void
1052 Mixer_UI::hide_strip (MixerStrip* ms)
1053 {
1054         TreeModel::Children rows = track_model->children();
1055         TreeModel::Children::iterator i;
1056
1057         for (i = rows.begin(); i != rows.end(); ++i) {
1058
1059                 AxisView* av = (*i)[stripable_columns.strip];
1060                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1061                 if (strip == ms) {
1062                         (*i)[stripable_columns.visible] = false;
1063                         redisplay_track_list ();
1064                         break;
1065                 }
1066         }
1067 }
1068
1069 gint
1070 Mixer_UI::start_updating ()
1071 {
1072     fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
1073     return 0;
1074 }
1075
1076 gint
1077 Mixer_UI::stop_updating ()
1078 {
1079     fast_screen_update_connection.disconnect();
1080     return 0;
1081 }
1082
1083 void
1084 Mixer_UI::fast_update_strips ()
1085 {
1086         if (_content.is_mapped () && _session) {
1087                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1088                         (*i)->fast_update ();
1089                 }
1090         }
1091 }
1092
1093 void
1094 Mixer_UI::set_all_strips_visibility (bool yn)
1095 {
1096         TreeModel::Children rows = track_model->children();
1097         TreeModel::Children::iterator i;
1098
1099         {
1100                 Unwinder<bool> uw (no_track_list_redisplay, true);
1101
1102                 for (i = rows.begin(); i != rows.end(); ++i) {
1103
1104                         AxisView* av = (*i)[stripable_columns.strip];
1105                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1106
1107                         if (!strip) {
1108                                 continue;
1109                         }
1110
1111                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1112                                 continue;
1113                         }
1114
1115                         (*i)[stripable_columns.visible] = yn;
1116                 }
1117         }
1118
1119         redisplay_track_list ();
1120 }
1121
1122
1123 void
1124 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
1125 {
1126         TreeModel::Children rows = track_model->children();
1127         TreeModel::Children::iterator i;
1128
1129         {
1130                 Unwinder<bool> uw (no_track_list_redisplay, true);
1131
1132                 for (i = rows.begin(); i != rows.end(); ++i) {
1133
1134                         AxisView* av = (*i)[stripable_columns.strip];
1135                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1136
1137                         if (!strip) {
1138                                 continue;
1139                         }
1140
1141                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1142                                 continue;
1143                         }
1144
1145                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
1146                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
1147
1148                         switch (tracks) {
1149                         case 0:
1150                                 (*i)[stripable_columns.visible] = yn;
1151                                 break;
1152
1153                         case 1:
1154                                 if (at) { /* track */
1155                                         (*i)[stripable_columns.visible] = yn;
1156                                 }
1157                                 break;
1158
1159                         case 2:
1160                                 if (!at && !mt) { /* bus */
1161                                         (*i)[stripable_columns.visible] = yn;
1162                                 }
1163                                 break;
1164
1165                         case 3:
1166                                 if (mt) { /* midi-track */
1167                                         (*i)[stripable_columns.visible] = yn;
1168                                 }
1169                                 break;
1170                         }
1171                 }
1172         }
1173
1174         redisplay_track_list ();
1175 }
1176
1177 void
1178 Mixer_UI::hide_all_routes ()
1179 {
1180         set_all_strips_visibility (false);
1181 }
1182
1183 void
1184 Mixer_UI::show_all_routes ()
1185 {
1186         set_all_strips_visibility (true);
1187 }
1188
1189 void
1190 Mixer_UI::show_all_audiobus ()
1191 {
1192         set_all_audio_midi_visibility (2, true);
1193 }
1194 void
1195 Mixer_UI::hide_all_audiobus ()
1196 {
1197         set_all_audio_midi_visibility (2, false);
1198 }
1199
1200 void
1201 Mixer_UI::show_all_audiotracks()
1202 {
1203         set_all_audio_midi_visibility (1, true);
1204 }
1205 void
1206 Mixer_UI::hide_all_audiotracks ()
1207 {
1208         set_all_audio_midi_visibility (1, false);
1209 }
1210
1211 void
1212 Mixer_UI::show_all_miditracks()
1213 {
1214         set_all_audio_midi_visibility (3, true);
1215 }
1216 void
1217 Mixer_UI::hide_all_miditracks ()
1218 {
1219         set_all_audio_midi_visibility (3, false);
1220 }
1221
1222 void
1223 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1224 {
1225         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1226         sync_presentation_info_from_treeview ();
1227 }
1228
1229 void
1230 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1231 {
1232         /* this happens as the second step of a DnD within the treeview as well
1233            as when a row/route is actually deleted.
1234
1235            if it was a deletion then we have to force a redisplay because
1236            order keys may not have changed.
1237         */
1238
1239         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1240         sync_presentation_info_from_treeview ();
1241
1242         if (_route_deletion_in_progress) {
1243                 redisplay_track_list ();
1244         }
1245 }
1246
1247 void
1248 Mixer_UI::spill_redisplay (boost::shared_ptr<VCA> vca)
1249 {
1250         TreeModel::Children rows = track_model->children();
1251
1252         for (TreeModel::Children::iterator i = rows.begin(); i != rows.end(); ++i) {
1253
1254                 AxisView* av = (*i)[stripable_columns.strip];
1255                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1256
1257                 if (!strip) {
1258                         /* we're in the middle of changing a row, don't worry */
1259                         continue;
1260                 }
1261
1262                 if (!strip->route()) {
1263                         /* non-route element */
1264                         continue;
1265                 }
1266
1267                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1268                         continue;
1269                 }
1270
1271                 if (strip->route()->slaved_to (vca)) {
1272
1273                         if (strip->packed()) {
1274                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1275                         } else {
1276                                 strip_packer.pack_start (*strip, false, false);
1277                                 strip->set_packed (true);
1278                         }
1279
1280                 } else {
1281
1282                         if (strip->packed()) {
1283                                 strip_packer.remove (*strip);
1284                                 strip->set_packed (false);
1285                         }
1286                 }
1287         }
1288 }
1289
1290 void
1291 Mixer_UI::redisplay_track_list ()
1292 {
1293         if (no_track_list_redisplay) {
1294                 return;
1295         }
1296
1297         boost::shared_ptr<VCA> sv = spilled_vca.lock ();
1298
1299         if (sv) {
1300                 spill_redisplay (sv);
1301                 return;
1302         }
1303
1304         TreeModel::Children rows = track_model->children();
1305         TreeModel::Children::iterator i;
1306         uint32_t n_masters = 0;
1307
1308         container_clear (vca_hpacker);
1309         vca_hpacker.pack_end (vca_scroller_base, true, true);
1310
1311         for (i = rows.begin(); i != rows.end(); ++i) {
1312
1313                 AxisView* s = (*i)[stripable_columns.strip];
1314                 bool const visible = (*i)[stripable_columns.visible];
1315                 boost::shared_ptr<Stripable> stripable = (*i)[stripable_columns.stripable];
1316
1317                 if (!s) {
1318                         /* we're in the middle of changing a row, don't worry */
1319                         continue;
1320                 }
1321
1322                 VCAMasterStrip* vms;
1323
1324                 if ((vms = dynamic_cast<VCAMasterStrip*> (s))) {
1325                         if (visible) {
1326                                 vca_hpacker.pack_start (*vms, false, false);
1327                                 vms->show ();
1328                                 n_masters++;
1329                         }
1330                         continue;
1331                 }
1332
1333                 MixerStrip* strip = dynamic_cast<MixerStrip*> (s);
1334
1335                 if (!strip) {
1336                         continue;
1337                 }
1338
1339                 if (visible) {
1340
1341                         if (strip->packed()) {
1342                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1343                         } else {
1344                                 strip_packer.pack_start (*strip, false, false);
1345                                 strip->set_packed (true);
1346                         }
1347
1348                 } else {
1349
1350                         if (stripable->is_master() || stripable->is_monitor()) {
1351                                 /* do nothing, these cannot be hidden */
1352                         } else {
1353                                 if (strip->packed()) {
1354                                         strip_packer.remove (*strip);
1355                                         strip->set_packed (false);
1356                                 }
1357                         }
1358                 }
1359         }
1360
1361         /* update visibility of VCA assign buttons */
1362
1363         if (n_masters == 0) {
1364                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::remove_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1365                 vca_vpacker.hide ();
1366         } else {
1367                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::add_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1368                 vca_vpacker.show ();
1369         }
1370
1371         _group_tabs->set_dirty ();
1372 }
1373
1374 void
1375 Mixer_UI::strip_width_changed ()
1376 {
1377         _group_tabs->set_dirty ();
1378
1379 #ifdef __APPLE__
1380         TreeModel::Children rows = track_model->children();
1381         TreeModel::Children::iterator i;
1382         long order;
1383
1384         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1385                 AxisView* av = (*i)[stripable_columns.strip];
1386                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1387
1388                 if (strip == 0) {
1389                         continue;
1390                 }
1391
1392                 bool visible = (*i)[stripable_columns.visible];
1393
1394                 if (visible) {
1395                         strip->queue_draw();
1396                 }
1397         }
1398 #endif
1399
1400 }
1401
1402 struct PresentationInfoMixerSorter
1403 {
1404         bool operator() (boost::shared_ptr<Stripable> a, boost::shared_ptr<Stripable> b) {
1405                 if (a->is_master()) {
1406                         /* master after everything else */
1407                         return false;
1408                 } else if (b->is_master()) {
1409                         /* everything else before master */
1410                         return true;
1411                 }
1412                 return a->presentation_info().order () < b->presentation_info().order ();
1413         }
1414 };
1415
1416 void
1417 Mixer_UI::initial_track_display ()
1418 {
1419         StripableList sl;
1420
1421         boost::shared_ptr<RouteList> routes = _session->get_routes();
1422
1423         for (RouteList::iterator r = routes->begin(); r != routes->end(); ++r) {
1424                 sl.push_back (*r);
1425         }
1426
1427         VCAList vcas = _session->vca_manager().vcas();
1428
1429         for (VCAList::iterator v = vcas.begin(); v != vcas.end(); ++v) {
1430                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
1431         }
1432
1433         sl.sort (PresentationInfoMixerSorter());
1434
1435         {
1436                 /* These are also used inside ::add_stripables() but we need
1437                  *  them here because we're going to clear the track_model also.
1438                  */
1439                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1440                 Unwinder<bool> uw2 (ignore_reorder, true);
1441
1442                 track_model->clear ();
1443                 add_stripables (sl);
1444         }
1445
1446         redisplay_track_list ();
1447 }
1448
1449 void
1450 Mixer_UI::show_track_list_menu ()
1451 {
1452         if (track_menu == 0) {
1453                 build_track_menu ();
1454         }
1455
1456         track_menu->popup (1, gtk_get_current_event_time());
1457 }
1458
1459 bool
1460 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1461 {
1462         if (Keyboard::is_context_menu_event (ev)) {
1463                 show_track_list_menu ();
1464                 return true;
1465         }
1466
1467         return false;
1468 }
1469
1470 void
1471 Mixer_UI::build_track_menu ()
1472 {
1473         using namespace Menu_Helpers;
1474         using namespace Gtk;
1475
1476         track_menu = new Menu;
1477         track_menu->set_name ("ArdourContextMenu");
1478         MenuList& items = track_menu->items();
1479
1480         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1481         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1482         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1483         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1484         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1485         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1486         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1487         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1488
1489 }
1490
1491 void
1492 Mixer_UI::stripable_property_changed (const PropertyChange& what_changed, boost::weak_ptr<Stripable> ws)
1493 {
1494         if (!what_changed.contains (ARDOUR::Properties::hidden) && !what_changed.contains (ARDOUR::Properties::name)) {
1495                 return;
1496         }
1497
1498         boost::shared_ptr<Stripable> s = ws.lock ();
1499
1500         if (!s) {
1501                 return;
1502         }
1503
1504         TreeModel::Children rows = track_model->children();
1505         TreeModel::Children::iterator i;
1506
1507         for (i = rows.begin(); i != rows.end(); ++i) {
1508                 boost::shared_ptr<Stripable> ss = (*i)[stripable_columns.stripable];
1509
1510                 if (s == ss) {
1511
1512                         if (what_changed.contains (ARDOUR::Properties::name)) {
1513                                 (*i)[stripable_columns.text] = s->name();
1514                         }
1515
1516                         if (what_changed.contains (ARDOUR::Properties::hidden)) {
1517                                 (*i)[stripable_columns.visible] = !s->presentation_info().hidden();
1518                                 redisplay_track_list ();
1519                         }
1520
1521                         return;
1522                 }
1523         }
1524
1525         error << _("track display list item for renamed strip not found!") << endmsg;
1526 }
1527
1528 bool
1529 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1530 {
1531         TreeModel::Path path;
1532         TreeViewColumn* column;
1533         int cellx;
1534         int celly;
1535
1536         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1537                 _group_tabs->get_menu(0)->popup (1, ev->time);
1538                 return true;
1539         }
1540
1541         TreeIter iter = group_model->get_iter (path);
1542         if (!iter) {
1543                 _group_tabs->get_menu(0)->popup (1, ev->time);
1544                 return true;
1545         }
1546
1547         RouteGroup* group = (*iter)[group_columns.group];
1548
1549         if (Keyboard::is_context_menu_event (ev)) {
1550                 _group_tabs->get_menu(group)->popup (1, ev->time);
1551                 return true;
1552         }
1553
1554         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1555         case 1:
1556                 if (Keyboard::is_edit_event (ev)) {
1557                         if (group) {
1558                                 // edit_route_group (group);
1559 #ifdef __APPLE__
1560                                 group_display.queue_draw();
1561 #endif
1562                                 return true;
1563                         }
1564                 }
1565                 break;
1566
1567         case 0:
1568         {
1569                 bool visible = (*iter)[group_columns.visible];
1570                 (*iter)[group_columns.visible] = !visible;
1571 #ifdef __APPLE__
1572                 group_display.queue_draw();
1573 #endif
1574                 return true;
1575         }
1576
1577         default:
1578                 break;
1579         }
1580
1581         return false;
1582  }
1583
1584 void
1585 Mixer_UI::activate_all_route_groups ()
1586 {
1587         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1588 }
1589
1590 void
1591 Mixer_UI::disable_all_route_groups ()
1592 {
1593         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1594 }
1595
1596 void
1597 Mixer_UI::route_groups_changed ()
1598 {
1599         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1600
1601         _in_group_rebuild_or_clear = true;
1602
1603         /* just rebuild the while thing */
1604
1605         group_model->clear ();
1606
1607 #if 0
1608         /* this is currently not used,
1609          * Mixer_UI::group_display_button_press() has a case for it,
1610          * and a commented edit_route_group() but that's n/a since 2011.
1611          *
1612          * This code is left as reminder that
1613          * row[group_columns.group] = 0 has special meaning.
1614          */
1615         {
1616                 TreeModel::Row row;
1617                 row = *(group_model->append());
1618                 row[group_columns.visible] = true;
1619                 row[group_columns.text] = (_("-all-"));
1620                 row[group_columns.group] = 0;
1621         }
1622 #endif
1623
1624         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1625
1626         _group_tabs->set_dirty ();
1627         _in_group_rebuild_or_clear = false;
1628 }
1629
1630 void
1631 Mixer_UI::new_route_group ()
1632 {
1633         _group_tabs->run_new_group_dialog (0, false);
1634 }
1635
1636 void
1637 Mixer_UI::remove_selected_route_group ()
1638 {
1639         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1640         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1641
1642         if (rows.empty()) {
1643                 return;
1644         }
1645
1646         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1647         TreeIter iter;
1648
1649         /* selection mode is single, so rows.begin() is it */
1650
1651         if ((iter = group_model->get_iter (*i))) {
1652
1653                 RouteGroup* rg = (*iter)[group_columns.group];
1654
1655                 if (rg) {
1656                         _session->remove_route_group (*rg);
1657                 }
1658         }
1659 }
1660
1661 void
1662 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1663 {
1664         if (in_group_row_change) {
1665                 return;
1666         }
1667
1668         /* force an update of any mixer strips that are using this group,
1669            otherwise mix group names don't change in mixer strips
1670         */
1671
1672         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1673                 if ((*i)->route_group() == group) {
1674                         (*i)->route_group_changed();
1675                 }
1676         }
1677
1678         TreeModel::iterator i;
1679         TreeModel::Children rows = group_model->children();
1680         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1681
1682         in_group_row_change = true;
1683
1684         for (i = rows.begin(); i != rows.end(); ++i) {
1685                 if ((*i)[group_columns.group] == group) {
1686                         (*i)[group_columns.visible] = !group->is_hidden ();
1687                         (*i)[group_columns.text] = group->name ();
1688                         break;
1689                 }
1690         }
1691
1692         in_group_row_change = false;
1693
1694         if (change.contains (Properties::name)) {
1695                 _group_tabs->set_dirty ();
1696         }
1697
1698         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1699                 if ((*j)->route_group() == group) {
1700                         if (group->is_hidden ()) {
1701                                 hide_strip (*j);
1702                         } else {
1703                                 show_strip (*j);
1704                         }
1705                 }
1706         }
1707 }
1708
1709 void
1710 Mixer_UI::show_mixer_list (bool yn)
1711 {
1712         if (yn) {
1713                 list_vpacker.show ();
1714         } else {
1715                 list_vpacker.hide ();
1716         }
1717
1718         _show_mixer_list = yn;
1719 }
1720
1721 void
1722 Mixer_UI::show_monitor_section (bool yn)
1723 {
1724         if (!monitor_section()) {
1725                 return;
1726         }
1727         if (monitor_section()->tearoff().torn_off()) {
1728                 return;
1729         }
1730
1731         if (yn) {
1732                 monitor_section()->tearoff().show();
1733         } else {
1734                 monitor_section()->tearoff().hide();
1735         }
1736 }
1737
1738 void
1739 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1740 {
1741         RouteGroup* group;
1742         TreeIter iter;
1743
1744         if ((iter = group_model->get_iter (path))) {
1745
1746                 if ((group = (*iter)[group_columns.group]) == 0) {
1747                         return;
1748                 }
1749
1750                 if (new_text != group->name()) {
1751                         group->set_name (new_text);
1752                 }
1753         }
1754 }
1755
1756 void
1757 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1758 {
1759         RouteGroup* group;
1760
1761         if (in_group_row_change) {
1762                 return;
1763         }
1764
1765         if ((group = (*iter)[group_columns.group]) == 0) {
1766                 return;
1767         }
1768
1769         std::string name = (*iter)[group_columns.text];
1770
1771         if (name != group->name()) {
1772                 group->set_name (name);
1773         }
1774
1775         bool hidden = !(*iter)[group_columns.visible];
1776
1777         if (hidden != group->is_hidden ()) {
1778                 group->set_hidden (hidden, this);
1779         }
1780 }
1781
1782 /** Called when a group model row is deleted, but also when the model is
1783  *  reordered by a user drag-and-drop; the latter is what we are
1784  *  interested in here.
1785  */
1786 void
1787 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1788 {
1789         if (_in_group_rebuild_or_clear) {
1790                 return;
1791         }
1792
1793         /* Re-write the session's route group list so that the new order is preserved */
1794
1795         list<RouteGroup*> new_list;
1796
1797         Gtk::TreeModel::Children children = group_model->children();
1798         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1799                 RouteGroup* g = (*i)[group_columns.group];
1800                 if (g) {
1801                         new_list.push_back (g);
1802                 }
1803         }
1804
1805         _session->reorder_route_groups (new_list);
1806 }
1807
1808
1809 void
1810 Mixer_UI::add_route_group (RouteGroup* group)
1811 {
1812         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1813         bool focus = false;
1814
1815         in_group_row_change = true;
1816
1817         TreeModel::Row row = *(group_model->append());
1818         row[group_columns.visible] = !group->is_hidden ();
1819         row[group_columns.group] = group;
1820         if (!group->name().empty()) {
1821                 row[group_columns.text] = group->name();
1822         } else {
1823                 row[group_columns.text] = _("unnamed");
1824                 focus = true;
1825         }
1826
1827         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1828
1829         if (focus) {
1830                 TreeViewColumn* col = group_display.get_column (0);
1831                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
1832                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1833         }
1834
1835         _group_tabs->set_dirty ();
1836
1837         in_group_row_change = false;
1838 }
1839
1840 bool
1841 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1842 {
1843         using namespace Menu_Helpers;
1844
1845         if (Keyboard::is_context_menu_event (ev)) {
1846                 ARDOUR_UI::instance()->add_route ();
1847                 return true;
1848         }
1849
1850         return false;
1851 }
1852
1853 void
1854 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
1855 {
1856         printf ("Mixer_UI::scroller_drag_data_received\n");
1857         if (data.get_target() != "PluginFavoritePtr") {
1858                 context->drag_finish (false, false, time);
1859                 return;
1860         }
1861
1862         const void * d = data.get_data();
1863         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
1864
1865         PluginPresetList nfos;
1866         TreeView* source;
1867         tv->get_object_drag_data (nfos, &source);
1868
1869         Route::ProcessorList pl;
1870         bool ok = false;
1871
1872         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1873                 PluginPresetPtr ppp = (*i);
1874                 PluginInfoPtr pip = ppp->_pip;
1875                 if (!pip->is_instrument ()) {
1876                         continue;
1877                 }
1878                 ARDOUR_UI::instance()->session_add_midi_track ((RouteGroup*) 0, 1, _("MIDI"), Config->get_strict_io (), pip, ppp->_preset.valid ? &ppp->_preset : 0, PresentationInfo::max_order);
1879                 ok = true;
1880         }
1881
1882         context->drag_finish (ok, false, time);
1883 }
1884
1885 void
1886 Mixer_UI::set_strip_width (Width w, bool save)
1887 {
1888         _strip_width = w;
1889
1890         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1891                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1892         }
1893 }
1894
1895
1896 struct PluginStateSorter {
1897 public:
1898         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
1899                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
1900                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
1901                 if (aiter != _user.end() && biter != _user.end()) {
1902                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
1903                 }
1904                 if (aiter != _user.end()) {
1905                         return true;
1906                 }
1907                 if (biter != _user.end()) {
1908                         return false;
1909                 }
1910                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
1911         }
1912
1913         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
1914 private:
1915         std::list<std::string> _user;
1916 };
1917
1918 int
1919 Mixer_UI::set_state (const XMLNode& node, int version)
1920 {
1921         XMLProperty const * prop;
1922         LocaleGuard lg;
1923
1924         Tabbable::set_state (node, version);
1925
1926         if ((prop = node.property ("narrow-strips"))) {
1927                 if (string_is_affirmative (prop->value())) {
1928                         set_strip_width (Narrow);
1929                 } else {
1930                         set_strip_width (Wide);
1931                 }
1932         }
1933
1934         if ((prop = node.property ("show-mixer"))) {
1935                 if (string_is_affirmative (prop->value())) {
1936                        _visible = true;
1937                 }
1938         }
1939
1940         if ((prop = node.property ("maximised"))) {
1941                 bool yn = string_is_affirmative (prop->value());
1942                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
1943                 assert (act);
1944                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1945                 bool fs = tact && tact->get_active();
1946                 if (yn ^ fs) {
1947                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
1948                 }
1949         }
1950
1951         if ((prop = node.property ("show-mixer-list"))) {
1952                 bool yn = string_is_affirmative (prop->value());
1953                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
1954                 assert (act);
1955                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1956
1957                 /* do it twice to force the change */
1958                 tact->set_active (!yn);
1959                 tact->set_active (yn);
1960         }
1961
1962
1963         XMLNode* plugin_order;
1964         if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
1965                 store_current_favorite_order ();
1966                 std::list<string> order;
1967                 const XMLNodeList& kids = plugin_order->children("PluginInfo");
1968                 XMLNodeConstIterator i;
1969                 for (i = kids.begin(); i != kids.end(); ++i) {
1970                         if ((prop = (*i)->property ("unique-id"))) {
1971                                 std::string unique_id = prop->value();
1972                                 order.push_back (unique_id);
1973                                 if ((prop = (*i)->property ("expanded"))) {
1974                                         favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
1975                                 }
1976                         }
1977                 }
1978                 PluginStateSorter cmp (order);
1979                 favorite_order.sort (cmp);
1980                 sync_treeview_from_favorite_order ();
1981         }
1982         return 0;
1983 }
1984
1985 XMLNode&
1986 Mixer_UI::get_state ()
1987 {
1988         XMLNode* node = new XMLNode (X_("Mixer"));
1989         char buf[128];
1990         LocaleGuard lg;
1991
1992         node->add_child_nocopy (Tabbable::get_state());
1993
1994         snprintf(buf,sizeof(buf), "%f", rhs_pane1.get_divider());
1995         node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
1996         snprintf(buf,sizeof(buf), "%f", rhs_pane2.get_divider());
1997         node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
1998         snprintf(buf,sizeof(buf), "%f", list_hpane.get_divider());
1999         node->add_property(X_("mixer-list-hpane-pos"), string(buf));
2000         snprintf(buf,sizeof(buf), "%f", inner_pane.get_divider());
2001         node->add_property(X_("mixer-inner-pane-pos"), string(buf));
2002
2003         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
2004         node->add_property ("show-mixer", _visible ? "yes" : "no");
2005         node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
2006         node->add_property ("maximised", _maximised ? "yes" : "no");
2007
2008         store_current_favorite_order ();
2009         XMLNode* plugin_order = new XMLNode ("PluginOrder");
2010         int cnt = 0;
2011         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
2012                 XMLNode* p = new XMLNode ("PluginInfo");
2013                 p->add_property ("sort", cnt);
2014                 p->add_property ("unique-id", (*i)->unique_id);
2015                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
2016                         p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
2017                 }
2018                 plugin_order->add_child_nocopy (*p);
2019         }
2020         node->add_child_nocopy (*plugin_order);
2021
2022         return *node;
2023 }
2024
2025 void
2026 Mixer_UI::scroll_left ()
2027 {
2028         if (!scroller.get_hscrollbar()) return;
2029         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2030         /* stupid GTK: can't rely on clamping across versions */
2031         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
2032 }
2033
2034 void
2035 Mixer_UI::scroll_right ()
2036 {
2037         if (!scroller.get_hscrollbar()) return;
2038         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2039         /* stupid GTK: can't rely on clamping across versions */
2040         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
2041 }
2042
2043 bool
2044 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
2045 {
2046         switch (ev->direction) {
2047         case GDK_SCROLL_LEFT:
2048                 scroll_left ();
2049                 return true;
2050         case GDK_SCROLL_UP:
2051                 if (ev->state & Keyboard::TertiaryModifier) {
2052                         scroll_left ();
2053                         return true;
2054                 }
2055                 return false;
2056
2057         case GDK_SCROLL_RIGHT:
2058                 scroll_right ();
2059                 return true;
2060
2061         case GDK_SCROLL_DOWN:
2062                 if (ev->state & Keyboard::TertiaryModifier) {
2063                         scroll_right ();
2064                         return true;
2065                 }
2066                 return false;
2067         }
2068
2069         return false;
2070 }
2071
2072
2073 void
2074 Mixer_UI::parameter_changed (string const & p)
2075 {
2076         if (p == "show-group-tabs") {
2077                 bool const s = _session->config.get_show_group_tabs ();
2078                 if (s) {
2079                         _group_tabs->show ();
2080                 } else {
2081                         _group_tabs->hide ();
2082                 }
2083         } else if (p == "default-narrow_ms") {
2084                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2085                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2086                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2087                 }
2088         } else if (p == "use-monitor-bus") {
2089                 if (_session && !_session->monitor_out()) {
2090                         monitor_section_detached ();
2091                 }
2092         }
2093 }
2094
2095 void
2096 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2097 {
2098         g->set_active (a, this);
2099 }
2100
2101 PluginSelector*
2102 Mixer_UI::plugin_selector()
2103 {
2104 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2105         if (!_plugin_selector)
2106                 _plugin_selector = new PluginSelector (PluginManager::instance());
2107 #endif
2108
2109         return _plugin_selector;
2110 }
2111
2112 void
2113 Mixer_UI::setup_track_display ()
2114 {
2115         track_model = ListStore::create (stripable_columns);
2116         track_display.set_model (track_model);
2117         track_display.append_column (_("Show"), stripable_columns.visible);
2118         track_display.append_column (_("Strips"), stripable_columns.text);
2119         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2120         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2121         track_display.get_column (0)->set_expand(false);
2122         track_display.get_column (1)->set_expand(true);
2123         track_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2124         track_display.set_name (X_("EditGroupList"));
2125         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2126         track_display.set_reorderable (true);
2127         track_display.set_headers_visible (true);
2128         track_display.set_can_focus(false);
2129
2130         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2131         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2132
2133         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (0));
2134         track_list_visible_cell->property_activatable() = true;
2135         track_list_visible_cell->property_radio() = false;
2136         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2137
2138         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2139
2140         track_display_scroller.add (track_display);
2141         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2142
2143         VBox* v = manage (new VBox);
2144         v->show ();
2145         v->pack_start (track_display_scroller, true, true);
2146
2147         Button* b = manage (new Button);
2148         b->show ();
2149         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
2150         w->show ();
2151         b->add (*w);
2152
2153         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
2154
2155         v->pack_start (*b, false, false);
2156
2157         track_display_frame.set_name("BaseFrame");
2158         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2159         track_display_frame.add (*v);
2160
2161         track_display_scroller.show();
2162         track_display_frame.show();
2163         track_display.show();
2164 }
2165
2166 void
2167 Mixer_UI::new_track_or_bus ()
2168 {
2169         ARDOUR_UI::instance()->add_route ();
2170 }
2171
2172 void
2173 Mixer_UI::update_title ()
2174 {
2175         if (!own_window()) {
2176                 return;
2177         }
2178
2179         if (_session) {
2180                 string n;
2181
2182                 if (_session->snap_name() != _session->name()) {
2183                         n = _session->snap_name ();
2184                 } else {
2185                         n = _session->name ();
2186                 }
2187
2188                 if (_session->dirty ()) {
2189                         n = "*" + n;
2190                 }
2191
2192                 WindowTitle title (n);
2193                 title += S_("Window|Mixer");
2194                 title += Glib::get_application_name ();
2195                 own_window()->set_title (title.get_string());
2196
2197         } else {
2198
2199                 WindowTitle title (S_("Window|Mixer"));
2200                 title += Glib::get_application_name ();
2201                 own_window()->set_title (title.get_string());
2202         }
2203 }
2204
2205 MixerStrip*
2206 Mixer_UI::strip_by_x (int x)
2207 {
2208         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2209                 int x1, x2, y;
2210
2211                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2212                 x2 = x1 + (*i)->get_width();
2213
2214                 if (x >= x1 && x <= x2) {
2215                         return (*i);
2216                 }
2217         }
2218
2219         return 0;
2220 }
2221
2222 void
2223 Mixer_UI::set_route_targets_for_operation ()
2224 {
2225         _route_targets.clear ();
2226
2227         if (!_selection.empty()) {
2228                 _route_targets = _selection.routes;
2229                 return;
2230         }
2231
2232 //  removed "implicit" selections of strips, after discussion on IRC
2233
2234 }
2235
2236 void
2237 Mixer_UI::monitor_section_going_away ()
2238 {
2239         if (_monitor_section) {
2240                 monitor_section_detached ();
2241                 out_packer.remove (_monitor_section->tearoff());
2242                 _monitor_section->set_session (0);
2243                 delete _monitor_section;
2244                 _monitor_section = 0;
2245         }
2246 }
2247
2248 void
2249 Mixer_UI::toggle_midi_input_active (bool flip_others)
2250 {
2251         boost::shared_ptr<RouteList> rl (new RouteList);
2252         bool onoff = false;
2253
2254         set_route_targets_for_operation ();
2255
2256         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
2257                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
2258
2259                 if (mt) {
2260                         rl->push_back ((*r)->route());
2261                         onoff = !mt->input_active();
2262                 }
2263         }
2264
2265         _session->set_exclusive_input_active (rl, onoff, flip_others);
2266 }
2267
2268 void
2269 Mixer_UI::maximise_mixer_space ()
2270 {
2271         if (!own_window()) {
2272                 return;
2273         }
2274
2275         if (_maximised) {
2276                 return;
2277         }
2278
2279         _window->fullscreen ();
2280         _maximised = true;
2281 }
2282
2283 void
2284 Mixer_UI::restore_mixer_space ()
2285 {
2286         if (!own_window()) {
2287                 return;
2288         }
2289
2290         if (!_maximised) {
2291                 return;
2292         }
2293
2294         own_window()->unfullscreen();
2295         _maximised = false;
2296 }
2297
2298 void
2299 Mixer_UI::monitor_section_attached ()
2300 {
2301         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2302         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2303         act->set_sensitive (true);
2304         tact->set_active ();
2305 }
2306
2307 void
2308 Mixer_UI::monitor_section_detached ()
2309 {
2310         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2311         act->set_sensitive (false);
2312 }
2313
2314 void
2315 Mixer_UI::store_current_favorite_order ()
2316 {
2317         typedef Gtk::TreeModel::Children type_children;
2318         type_children children = favorite_plugins_model->children();
2319         favorite_order.clear();
2320         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2321         {
2322                 Gtk::TreeModel::Row row = *iter;
2323                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2324                 favorite_order.push_back (ppp->_pip);
2325                 std::string name = row[favorite_plugins_columns.name];
2326                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2327         }
2328 }
2329
2330 void
2331 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2332 {
2333         Gtk::TreeModel::Row row = *iter;
2334         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2335         assert (ppp);
2336         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2337 }
2338
2339 void
2340 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2341 {
2342         PluginManager& manager (PluginManager::instance());
2343         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2344                 if (manager.get_status (*i) != PluginManager::Favorite) {
2345                         continue;
2346                 }
2347                 result.push_back (*i);
2348         }
2349 }
2350
2351 struct PluginCustomSorter {
2352 public:
2353         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2354                 PluginInfoList::const_iterator aiter = _user.begin();
2355                 PluginInfoList::const_iterator biter = _user.begin();
2356                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2357                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2358
2359                 if (aiter != _user.end() && biter != _user.end()) {
2360                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2361                 }
2362                 if (aiter != _user.end()) {
2363                         return true;
2364                 }
2365                 if (biter != _user.end()) {
2366                         return false;
2367                 }
2368                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2369         }
2370         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2371 private:
2372         PluginInfoList _user;
2373 };
2374
2375 void
2376 Mixer_UI::refill_favorite_plugins ()
2377 {
2378         PluginInfoList plugs;
2379         PluginManager& mgr (PluginManager::instance());
2380
2381 #ifdef LV2_SUPPORT
2382         refiller (plugs, mgr.lv2_plugin_info ());
2383 #endif
2384 #ifdef WINDOWS_VST_SUPPORT
2385         refiller (plugs, mgr.windows_vst_plugin_info ());
2386 #endif
2387 #ifdef LXVST_SUPPORT
2388         refiller (plugs, mgr.lxvst_plugin_info ());
2389 #endif
2390 #ifdef AUDIOUNIT_SUPPORT
2391         refiller (plugs, mgr.au_plugin_info ());
2392 #endif
2393         refiller (plugs, mgr.ladspa_plugin_info ());
2394         refiller (plugs, mgr.lua_plugin_info ());
2395
2396         store_current_favorite_order ();
2397
2398         PluginCustomSorter cmp (favorite_order);
2399         plugs.sort (cmp);
2400
2401         favorite_order = plugs;
2402
2403         sync_treeview_from_favorite_order ();
2404 }
2405
2406 void
2407 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2408 {
2409         TreeIter iter;
2410         if (!(iter = favorite_plugins_model->get_iter (path))) {
2411                 return;
2412         }
2413         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2414         if (!ppp) {
2415                 return;
2416         }
2417         PluginInfoPtr pip = ppp->_pip;
2418         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2419                 if (favorite_ui_state[pip->unique_id]) {
2420                         favorite_plugins_display.expand_row (path, true);
2421                 }
2422         }
2423 }
2424
2425 void
2426 Mixer_UI::sync_treeview_from_favorite_order ()
2427 {
2428         favorite_plugins_model->clear ();
2429         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2430                 PluginInfoPtr pip = (*i);
2431
2432                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2433                 newrow[favorite_plugins_columns.name] = (*i)->name;
2434                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2435                 if (!_session) {
2436                         continue;
2437                 }
2438
2439                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2440                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2441                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2442                         child_row[favorite_plugins_columns.name] = (*j).label;
2443                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2444                 }
2445                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2446                         if (favorite_ui_state[pip->unique_id]) {
2447                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2448                         }
2449                 }
2450         }
2451 }
2452
2453 void
2454 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2455 {
2456         using namespace Gtk::Menu_Helpers;
2457
2458         Gtk::Menu* m = manage (new Menu);
2459         MenuList& items = m->items ();
2460
2461         if (_selection.routes.empty()) {
2462                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
2463         } else {
2464                 items.push_back (MenuElem (_("Add at the top"),
2465                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
2466                 items.push_back (MenuElem (_("Add Pre-Fader"),
2467                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
2468                 items.push_back (MenuElem (_("Add Post-Fader"),
2469                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
2470                 items.push_back (MenuElem (_("Add at the end"),
2471                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
2472         }
2473
2474         items.push_back (SeparatorElem());
2475
2476         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
2477
2478         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2479         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
2480                 // we cannot currently delete AU presets
2481                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
2482                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
2483                 }
2484         }
2485
2486         m->popup (ev->button, ev->time);
2487 }
2488
2489 bool
2490 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
2491 {
2492         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
2493                 TreeModel::Path path;
2494                 TreeViewColumn* column;
2495                 int cellx, celly;
2496                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
2497                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2498                         if (selection) {
2499                                 selection->unselect_all();
2500                                 selection->select(path);
2501                         }
2502                 }
2503                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
2504                 if (ppp) {
2505                         popup_note_context_menu (ev);
2506                 }
2507         }
2508         return false;
2509 }
2510
2511
2512 PluginPresetPtr
2513 Mixer_UI::selected_plugin ()
2514 {
2515         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2516         if (!selection) {
2517                 return PluginPresetPtr();
2518         }
2519         Gtk::TreeModel::iterator iter = selection->get_selected();
2520         if (!iter) {
2521                 return PluginPresetPtr();
2522         }
2523         return (*iter)[favorite_plugins_columns.plugin];
2524 }
2525
2526 void
2527 Mixer_UI::add_selected_processor (ProcessorPosition pos)
2528 {
2529         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2530         if (ppp) {
2531                 add_favorite_processor (ppp, pos);
2532         }
2533 }
2534
2535 void
2536 Mixer_UI::delete_selected_preset ()
2537 {
2538         if (!_session) {
2539                 return;
2540         }
2541         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2542         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
2543                 return;
2544         }
2545         PluginPtr plugin = ppp->_pip->load (*_session);
2546         plugin->get_presets();
2547         plugin->remove_preset (ppp->_preset.label);
2548 }
2549
2550 void
2551 Mixer_UI::remove_selected_from_favorites ()
2552 {
2553         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2554         if (!ppp) {
2555                 return;
2556         }
2557         PluginManager::PluginStatusType status = PluginManager::Normal;
2558         PluginManager& manager (PluginManager::instance());
2559
2560         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2561         manager.save_statuses ();
2562 }
2563
2564 void
2565 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
2566 {
2567         TreeIter iter;
2568         if (!(iter = favorite_plugins_model->get_iter (path))) {
2569                 return;
2570         }
2571         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2572         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
2573 }
2574
2575 void
2576 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
2577 {
2578         if (!_session || _selection.routes.empty()) {
2579                 return;
2580         }
2581
2582         PluginInfoPtr pip = ppp->_pip;
2583         for (RouteUISelection::iterator i = _selection.routes.begin(); i != _selection.routes.end(); ++i) {
2584                 boost::shared_ptr<ARDOUR::Route> rt = (*i)->route();
2585                 if (!rt) { continue; }
2586
2587                 PluginPtr p = pip->load (*_session);
2588                 if (!p) { continue; }
2589
2590                 if (ppp->_preset.valid) {
2591                         p->load_preset (ppp->_preset);
2592                 }
2593
2594                 Route::ProcessorStreams err;
2595                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2596
2597                 switch (pos) {
2598                         case AddTop:
2599                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
2600                                 break;
2601                         case AddPreFader:
2602                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
2603                                 break;
2604                         case AddPostFader:
2605                                 {
2606                                         int idx = 0;
2607                                         int pos = 0;
2608                                         for (;;++idx) {
2609                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
2610                                                 if (!np) {
2611                                                         break;
2612                                                 }
2613                                                 if (!np->display_to_user()) {
2614                                                         continue;
2615                                                 }
2616                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
2617                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
2618                                                         break;
2619                                                 }
2620                                                 ++pos;
2621                                         }
2622                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
2623                                 }
2624                                 break;
2625                         case AddBottom:
2626                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
2627                                 break;
2628                 }
2629         }
2630 }
2631
2632 bool
2633 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
2634 {
2635         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
2636                 return false;
2637         }
2638
2639         // only allow to re-order top-level items
2640         TreePath src;
2641         if (TreePath::get_from_selection_data (data, src)) {
2642                 if (src.up() && src.up()) {
2643                         return false;
2644                 }
2645         }
2646
2647         // don't allow to drop as child-rows.
2648         Gtk::TreeModel::Path _dest = dest; // un const
2649         const bool is_child = _dest.up (); // explicit bool for clang
2650         if (!is_child || _dest.empty ()) {
2651                 return true;
2652         }
2653         return false;
2654 }
2655
2656 void
2657 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
2658 {
2659         if (data.get_target() != "PluginPresetPtr") {
2660                 return;
2661         }
2662         if (data.get_length() != sizeof (PluginPresetPtr)) {
2663                 return;
2664         }
2665         const void *d = data.get_data();
2666         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
2667
2668         PluginManager::PluginStatusType status = PluginManager::Favorite;
2669         PluginManager& manager (PluginManager::instance());
2670
2671         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2672         manager.save_statuses ();
2673 }
2674
2675 void
2676 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
2677 {
2678         /* call protected MixerActor:: method */
2679         vca_assign (vca);
2680 }
2681
2682 void
2683 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
2684 {
2685         /* call protected MixerActor:: method */
2686         vca_unassign (vca);
2687 }
2688
2689 void
2690 Mixer_UI::show_vca_slaves (boost::shared_ptr<VCA> vca)
2691 {
2692         boost::shared_ptr<VCA> v = spilled_vca.lock();
2693         if (v != vca) {
2694                 spilled_vca = vca;
2695                 show_vca_change (vca); /* EMIT SIGNAL */
2696                 if (vca) {
2697                         _group_tabs->hide ();
2698                 } else {
2699                         _group_tabs->show ();
2700                 }
2701                 redisplay_track_list ();
2702         }
2703 }
2704
2705 bool
2706 Mixer_UI::showing_vca_slaves_for (boost::shared_ptr<VCA> vca) const
2707 {
2708        return vca == spilled_vca.lock();
2709 }