gtk2_ardour/mixer_ui.cc

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