gtk2_ardour/mixer_ui.cc

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