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 <boost/foreach.hpp>
  29
  30 #include <glibmm/threads.h>
  31
  32 #include <gtkmm/accelmap.h>
  33 #include <gtkmm/stock.h>
  34
  35 #include "pbd/convert.h"
  36 #include "pbd/stacktrace.h"
  37 #include "pbd/unwind.h"
  38
  39 #include "ardour/amp.h"
  40 #include "ardour/debug.h"
  41 #include "ardour/audio_track.h"
  42 #include "ardour/midi_track.h"
  43 #include "ardour/plugin_manager.h"
  44 #include "ardour/route_group.h"
  45 #include "ardour/selection.h"
  46 #include "ardour/session.h"
  47 #include "ardour/vca.h"
  48 #include "ardour/vca_manager.h"
  49
  50 #include "gtkmm2ext/gtk_ui.h"
  51 #include "gtkmm2ext/keyboard.h"
  52 #include "gtkmm2ext/utils.h"
  53 #include "gtkmm2ext/window_title.h"
  54 #include "gtkmm2ext/doi.h"
  55
  56 #include "widgets/tearoff.h"
  57
  58 #include "keyboard.h"
  59 #include "mixer_ui.h"
  60 #include "mixer_strip.h"
  61 #include "monitor_section.h"
  62 #include "plugin_selector.h"
  63 #include "public_editor.h"
  64 #include "mouse_cursors.h"
  65 #include "ardour_ui.h"
  66 #include "utils.h"
  67 #include "route_sorter.h"
  68 #include "actions.h"
  69 #include "gui_thread.h"
  70 #include "mixer_group_tabs.h"
  71 #include "route_sorter.h"
  72 #include "timers.h"
  73 #include "ui_config.h"
  74 #include "vca_master_strip.h"
  75
  76 #include "pbd/i18n.h"
  77
  78 using namespace ARDOUR;
  79 using namespace ARDOUR_UI_UTILS;
  80 using namespace PBD;
  81 using namespace Gtk;
  82 using namespace Glib;
  83 using namespace Gtkmm2ext;
  84 using namespace std;
  85
  86 using PBD::atoi;
  87 using PBD::Unwinder;
  88
  89 Mixer_UI* Mixer_UI::_instance = 0;
  90
  91 Mixer_UI*
  92 Mixer_UI::instance ()
  93 {
  94         if (!_instance) {
  95                 _instance  = new Mixer_UI;
  96         }
  97
  98         return _instance;
  99 }
 100
 101 Mixer_UI::Mixer_UI ()
 102         : Tabbable (_content, _("Mixer"))
 103         , no_track_list_redisplay (false)
 104         , in_group_row_change (false)
 105         , track_menu (0)
 106         , _plugin_selector (0)
 107         , _strip_width (UIConfiguration::instance().get_default_narrow_ms() ? Narrow : Wide)
 108         , _spill_scroll_position (0)
 109         , ignore_reorder (false)
 110         , _in_group_rebuild_or_clear (false)
 111         , _route_deletion_in_progress (false)
 112         , _maximised (false)
 113         , _strip_selection_change_without_scroll (false)
 114         , _selection (*this, *this)
 115 {
 116         load_bindings ();
 117         register_actions ();
 118         _content.set_data ("ardour-bindings", bindings);
 119
 120         PresentationInfo::Change.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::presentation_info_changed, this, _1), gui_context());
 121
 122         scroller.set_can_default (true);
 123         // set_default (scroller);
 124
 125         scroller_base.set_flags (Gtk::CAN_FOCUS);
 126         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 127         scroller_base.set_name ("MixerWindow");
 128         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 129
 130         /* set up drag-n-drop */
 131         vector<TargetEntry> target_table;
 132         target_table.push_back (TargetEntry ("PluginFavoritePtr"));
 133         scroller_base.drag_dest_set (target_table);
 134         scroller_base.signal_drag_data_received().connect (sigc::mem_fun(*this, &Mixer_UI::scroller_drag_data_received));
 135
 136         /* create a button to add VCA strips ... will get packed in redisplay_track_list() */
 137         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 138         w->show ();
 139         add_vca_button.add (*w);
 140         add_vca_button.set_can_focus(false);
 141         add_vca_button.signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
 142
 143         /* create a button to add mixer strips */
 144         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 145         w->show ();
 146         add_button.add (*w);
 147         add_button.set_can_focus(false);
 148         add_button.signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
 149
 150         /* add as last item of strip packer */
 151         strip_packer.pack_end (scroller_base, true, true);
 152         strip_packer.pack_end (add_button, false, false);
 153
 154 #ifdef MIXBUS
 155         /* create a drop-shadow at the end of the mixer strips */
 156         mb_shadow.set_size_request( 4, -1 );
 157         mb_shadow.set_name("EditorWindow");
 158         mb_shadow.show();
 159         strip_packer.pack_end (mb_shadow, false, false);
 160 #endif
 161
 162         _group_tabs = new MixerGroupTabs (this);
 163         strip_group_box.set_spacing (0);
 164         strip_group_box.set_border_width (0);
 165         strip_group_box.pack_start (*_group_tabs, PACK_SHRINK);
 166         strip_group_box.pack_start (strip_packer);
 167         strip_group_box.show_all ();
 168         strip_group_box.signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_scroll_event), false);
 169
 170         scroller.add (strip_group_box);
 171         scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 172
 173         setup_track_display ();
 174
 175         group_model = ListStore::create (group_columns);
 176         group_display.set_model (group_model);
 177         group_display.append_column (_("Show"), group_columns.visible);
 178         group_display.append_column (_("Group"), group_columns.text);
 179         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 180         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 181         group_display.get_column (0)->set_expand(false);
 182         group_display.get_column (1)->set_expand(true);
 183         group_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
 184         group_display.set_name ("EditGroupList");
 185         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 186         group_display.set_reorderable (true);
 187         group_display.set_headers_visible (true);
 188         group_display.set_rules_hint (true);
 189         group_display.set_can_focus(false);
 190
 191         /* name is directly editable */
 192
 193         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
 194         name_cell->property_editable() = true;
 195         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 196
 197         /* use checkbox for the active column */
 198
 199         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (0));
 200         active_cell->property_activatable() = true;
 201         active_cell->property_radio() = false;
 202
 203         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 204         /* We use this to notice drag-and-drop reorders of the group list */
 205         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 206         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 207
 208         group_display_scroller.add (group_display);
 209         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 210
 211
 212         group_display_vbox.pack_start (group_display_scroller, true, true);
 213
 214         group_display_frame.set_name ("BaseFrame");
 215         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 216         group_display_frame.add (group_display_vbox);
 217
 218         list<TargetEntry> target_list;
 219         target_list.push_back (TargetEntry ("PluginPresetPtr"));
 220
 221         favorite_plugins_model = PluginTreeStore::create (favorite_plugins_columns);
 222         favorite_plugins_display.set_model (favorite_plugins_model);
 223         favorite_plugins_display.append_column (_("Favorite Plugins"), favorite_plugins_columns.name);
 224         favorite_plugins_display.set_name ("EditGroupList");
 225         favorite_plugins_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 226         favorite_plugins_display.set_reorderable (false);
 227         favorite_plugins_display.set_headers_visible (true);
 228         favorite_plugins_display.set_rules_hint (true);
 229         favorite_plugins_display.set_can_focus (false);
 230         favorite_plugins_display.add_object_drag (favorite_plugins_columns.plugin.index(), "PluginFavoritePtr");
 231         favorite_plugins_display.set_drag_column (favorite_plugins_columns.name.index());
 232         favorite_plugins_display.add_drop_targets (target_list);
 233         favorite_plugins_display.signal_row_activated().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_activated));
 234         favorite_plugins_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_button_press), false);
 235         favorite_plugins_display.signal_drop.connect (sigc::mem_fun (*this, &Mixer_UI::plugin_drop));
 236         favorite_plugins_display.signal_row_expanded().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 237         favorite_plugins_display.signal_row_collapsed().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 238         if (UIConfiguration::instance().get_use_tooltips()) {
 239                 favorite_plugins_display.set_tooltip_column (0);
 240         }
 241         favorite_plugins_model->signal_row_has_child_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::sync_treeview_favorite_ui_state));
 242
 243         favorite_plugins_scroller.add (favorite_plugins_display);
 244         favorite_plugins_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 245
 246         favorite_plugins_frame.set_name ("BaseFrame");
 247         favorite_plugins_frame.set_shadow_type (Gtk::SHADOW_IN);
 248         favorite_plugins_frame.add (favorite_plugins_vbox);
 249
 250         favorite_plugins_vbox.pack_start (favorite_plugins_scroller, true, true);
 251         favorite_plugins_vbox.pack_start (favorite_plugins_tag_combo, false, false);
 252         favorite_plugins_tag_combo.signal_changed().connect (sigc::mem_fun (*this, &Mixer_UI::tag_combo_changed));
 253
 254         rhs_pane1.add (favorite_plugins_frame);
 255         rhs_pane1.add (track_display_frame);
 256
 257         rhs_pane2.add (rhs_pane1);
 258         rhs_pane2.add (group_display_frame);
 259
 260         list_vpacker.pack_start (rhs_pane2, true, true);
 261
 262         vca_label_bar.set_size_request (-1, 16 + 1); /* must match height in GroupTabs::set_size_request()  + 1 border px*/
 263         vca_vpacker.pack_start (vca_label_bar, false, false);
 264
 265         vca_scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 266         vca_scroller_base.set_name (X_("MixerWindow"));
 267         vca_scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::masters_scroller_button_release), false);
 268
 269         vca_hpacker.signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_vca_scroll_event), false);
 270         vca_scroller.add (vca_hpacker);
 271         vca_scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 272         vca_scroller.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 273
 274         vca_vpacker.pack_start (vca_scroller, true, true);
 275
 276         inner_pane.add (scroller);
 277         inner_pane.add (vca_vpacker);
 278
 279         global_hpacker.pack_start (inner_pane, true, true);
 280         global_hpacker.pack_start (out_packer, false, false);
 281
 282         list_hpane.set_check_divider_position (true);
 283         list_hpane.add (list_vpacker);
 284         list_hpane.add (global_hpacker);
 285         list_hpane.set_child_minsize (list_vpacker, 30);
 286
 287         XMLNode const * settings = ARDOUR_UI::instance()->mixer_settings();
 288         float fract;
 289
 290         if (!settings || !settings->get_property ("mixer-rhs-pane1-pos", fract) || fract > 1.0) {
 291                 fract = 0.6f;
 292         }
 293         rhs_pane1.set_divider (0, fract);
 294
 295         if (!settings || !settings->get_property ("mixer-rhs-pane2-pos", fract) || fract > 1.0) {
 296                 fract = 0.7f;
 297         }
 298         rhs_pane2.set_divider (0, fract);
 299
 300         if (!settings || !settings->get_property ("mixer-list-hpane-pos", fract) || fract > 1.0) {
 301                 fract = 0.2f;
 302         }
 303         list_hpane.set_divider (0, fract);
 304
 305         if (!settings || !settings->get_property ("mixer-inner-pane-pos", fract) || fract > 1.0) {
 306                 fract = 0.8f;
 307         }
 308         inner_pane.set_divider (0, fract);
 309
 310         rhs_pane1.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 311         rhs_pane2.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 312         list_hpane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 313         inner_pane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 314
 315         _content.pack_start (list_hpane, true, true);
 316
 317         update_title ();
 318
 319         _content.show ();
 320         _content.set_name ("MixerWindow");
 321
 322         global_hpacker.show();
 323         scroller.show();
 324         scroller_base.show();
 325         scroller_hpacker.show();
 326         mixer_scroller_vpacker.show();
 327         list_vpacker.show();
 328         group_display_button_label.show();
 329         group_display_scroller.show();
 330         favorite_plugins_scroller.show();
 331         group_display_vbox.show();
 332         group_display_frame.show();
 333         favorite_plugins_frame.show();
 334         rhs_pane1.show();
 335         rhs_pane2.show();
 336         strip_packer.show();
 337         inner_pane.show();
 338         vca_scroller.show();
 339         vca_vpacker.show();
 340         vca_hpacker.show();
 341         vca_label_bar.show();
 342         vca_label.show();
 343         vca_scroller_base.show();
 344         out_packer.show();
 345         list_hpane.show();
 346         group_display.show();
 347         favorite_plugins_display.show();
 348         add_button.show ();
 349
 350         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 351         if (mnode) {
 352                 _monitor_section.tearoff().set_state (*mnode);
 353         }
 354
 355         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 356         VCAMasterStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_master, this, _1), gui_context());
 357
 358         /* handle escape */
 359
 360         ARDOUR_UI::instance()->Escape.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::escape, this), gui_context());
 361
 362 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 363         _plugin_selector = new PluginSelector (PluginManager::instance ());
 364 #else
 365 #error implement deferred Plugin-Favorite list
 366 #endif
 367
 368         PluginManager::instance ().PluginListChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::plugin_list_changed, this), gui_context());
 369         PluginManager::instance ().PluginStatusChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::plugin_list_changed, this), gui_context());
 370         ARDOUR::Plugin::PresetsChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 371 }
 372
 373 Mixer_UI::~Mixer_UI ()
 374 {
 375         monitor_section_detached ();
 376
 377         delete _plugin_selector;
 378         delete track_menu;
 379 }
 380
 381 struct MixerStripSorter {
 382         bool operator() (const MixerStrip* ms_a, const MixerStrip* ms_b)
 383         {
 384                 boost::shared_ptr<ARDOUR::Stripable> const& a = ms_a->stripable ();
 385                 boost::shared_ptr<ARDOUR::Stripable> const& b = ms_b->stripable ();
 386                 return ARDOUR::Stripable::Sorter(true)(a, b);
 387         }
 388 };
 389
 390
 391 void
 392 Mixer_UI::escape ()
 393 {
 394         select_none ();
 395 }
 396
 397 void
 398 Mixer_UI::tag_combo_changed ()
 399 {
 400         refill_favorite_plugins();
 401 }
 402
 403 Gtk::Window*
 404 Mixer_UI::use_own_window (bool and_fill_it)
 405 {
 406         bool new_window = !own_window();
 407
 408         Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
 409
 410         if (win && new_window) {
 411                 win->set_name ("MixerWindow");
 412                 ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Mixer"), this);
 413                 win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
 414                 win->set_data ("ardour-bindings", bindings);
 415                 update_title ();
 416                 if (!win->get_focus()) {
 417                         /* set focus widget to something, anything */
 418                         win->set_focus (scroller);
 419                 }
 420         }
 421
 422         return win;
 423 }
 424
 425 void
 426 Mixer_UI::show_window ()
 427 {
 428         Tabbable::show_window ();
 429
 430         /* show/hide group tabs as required */
 431         parameter_changed ("show-group-tabs");
 432
 433         /* now reset each strips width so the right widgets are shown */
 434
 435         TreeModel::Children rows = track_model->children();
 436         TreeModel::Children::iterator ri;
 437
 438         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 439                 AxisView* av = (*ri)[stripable_columns.strip];
 440                 MixerStrip* ms = dynamic_cast<MixerStrip*> (av);
 441                 if (!ms) {
 442                         continue;
 443                 }
 444                 ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 445                 /* Fix visibility of mixer strip stuff */
 446                 ms->parameter_changed (X_("mixer-element-visibility"));
 447         }
 448
 449         /* force focus into main area */
 450         scroller_base.grab_focus ();
 451 }
 452
 453 void
 454 Mixer_UI::remove_master (VCAMasterStrip* vms)
 455 {
 456         if (_session && _session->deletion_in_progress()) {
 457                 /* its all being taken care of */
 458                 return;
 459         }
 460
 461         TreeModel::Children rows = track_model->children();
 462         TreeModel::Children::iterator ri;
 463
 464         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 465                 if ((*ri)[stripable_columns.strip] == vms) {
 466                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 467                         track_model->erase (ri);
 468                         break;
 469                 }
 470         }
 471 }
 472
 473 bool
 474 Mixer_UI::masters_scroller_button_release (GdkEventButton* ev)
 475 {
 476         using namespace Menu_Helpers;
 477
 478         if (Keyboard::is_context_menu_event (ev)) {
 479                 ARDOUR_UI::instance()->add_route ();
 480                 return true;
 481         }
 482
 483         return false;
 484 }
 485
 486 void
 487 Mixer_UI::new_masters_created ()
 488 {
 489         ActionManager::get_toggle_action ("Mixer", "ToggleVCAPane")->set_active (true);
 490 }
 491
 492 void
 493 Mixer_UI::add_masters (VCAList& vlist)
 494 {
 495         StripableList sl;
 496
 497         for (VCAList::iterator v = vlist.begin(); v != vlist.end(); ++v) {
 498                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
 499         }
 500
 501         add_stripables (sl);
 502 }
 503
 504 void
 505 Mixer_UI::add_routes (RouteList& rlist)
 506 {
 507         StripableList sl;
 508
 509         for (RouteList::iterator r = rlist.begin(); r != rlist.end(); ++r) {
 510                 sl.push_back (*r);
 511         }
 512
 513         add_stripables (sl);
 514 }
 515
 516 void
 517 Mixer_UI::add_stripables (StripableList& slist)
 518 {
 519         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 520         bool from_scratch = (track_model->children().size() == 0);
 521         uint32_t nroutes = 0;
 522
 523         slist.sort (Stripable::Sorter());
 524
 525         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 526                 boost::shared_ptr<Stripable> s = (*it)[stripable_columns.stripable];
 527
 528                 if (!s) {
 529                         continue;
 530                 }
 531
 532                 nroutes++;
 533
 534                 // XXX what does this special case do?
 535                 if (s->presentation_info().order() == (slist.front()->presentation_info().order() + slist.size())) {
 536                         insert_iter = it;
 537                         break;
 538                 }
 539         }
 540
 541         MixerStrip* strip;
 542
 543         try {
 544                 PBD::Unwinder<bool> uw (no_track_list_redisplay, true);
 545
 546                 track_display.set_model (Glib::RefPtr<ListStore>());
 547
 548                 for (StripableList::iterator s = slist.begin(); s != slist.end(); ++s) {
 549
 550                         boost::shared_ptr<Route> route;
 551                         boost::shared_ptr<VCA> vca;
 552
 553                         if ((vca  = boost::dynamic_pointer_cast<VCA> (*s))) {
 554
 555                                 VCAMasterStrip* vms = new VCAMasterStrip (_session, vca);
 556
 557                                 TreeModel::Row row = *(track_model->append());
 558
 559                                 row[stripable_columns.text] = vca->name();
 560                                 row[stripable_columns.visible] = vms->marked_for_display ();
 561                                 row[stripable_columns.strip] = vms;
 562                                 row[stripable_columns.stripable] = vca;
 563
 564                                 vms->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::vca_button_release_event), vms));
 565
 566                         } else if ((route = boost::dynamic_pointer_cast<Route> (*s))) {
 567
 568                                 if (route->is_auditioner()) {
 569                                         continue;
 570                                 }
 571
 572                                 if (route->is_monitor()) {
 573
 574                                         out_packer.pack_end (_monitor_section.tearoff(), false, false);
 575                                         _monitor_section.set_session (_session);
 576                                         _monitor_section.tearoff().show_all ();
 577
 578                                         _monitor_section.tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
 579                                         _monitor_section.tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
 580
 581                                         if (_monitor_section.tearoff().torn_off()) {
 582                                                 monitor_section_detached ();
 583                                         } else {
 584                                                 monitor_section_attached ();
 585                                         }
 586
 587                                         route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 588
 589                                         /* no regular strip shown for control out */
 590
 591                                         continue;
 592                                 }
 593
 594                                 strip = new MixerStrip (*this, _session, route);
 595                                 strips.push_back (strip);
 596
 597                                 UIConfiguration::instance().get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 598
 599                                 if (strip->width_owner() != strip) {
 600                                         strip->set_width_enum (_strip_width, this);
 601                                 }
 602
 603                                 show_strip (strip);
 604
 605                                 if (route->is_master()) {
 606
 607                                         out_packer.pack_start (*strip, false, false);
 608                                         strip->set_packed (true);
 609
 610                                 } else {
 611
 612                                         TreeModel::Row row = *(track_model->insert (insert_iter));
 613
 614                                         row[stripable_columns.text] = route->name();
 615                                         row[stripable_columns.visible] = strip->marked_for_display();
 616                                         row[stripable_columns.stripable] = route;
 617                                         row[stripable_columns.strip] = strip;
 618                                 }
 619
 620                                 strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 621                                 strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 622                         }
 623
 624                         (*s)->presentation_info().PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 625                         (*s)->PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 626                 }
 627
 628         } catch (const std::exception& e) {
 629                 error << string_compose (_("Error adding GUI elements for new tracks/busses %1"), e.what()) << endmsg;
 630         }
 631
 632         track_display.set_model (track_model);
 633
 634         /* catch up on selection state, which we left to the editor to set */
 635         sync_treeview_from_presentation_info (PropertyChange (Properties::selected));
 636
 637         if (!from_scratch) {
 638                 sync_presentation_info_from_treeview ();
 639         }
 640
 641         redisplay_track_list ();
 642 }
 643
 644 void
 645 Mixer_UI::deselect_all_strip_processors ()
 646 {
 647         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 648                 (*i)->deselect_all_processors();
 649         }
 650 }
 651
 652 void
 653 Mixer_UI::select_none ()
 654 {
 655         _selection.clear_routes();
 656         deselect_all_strip_processors();
 657 }
 658
 659 void
 660 Mixer_UI::select_next_strip ()
 661 {
 662         deselect_all_strip_processors();
 663         _session->selection().select_next_stripable (true, false);
 664 }
 665
 666 void
 667 Mixer_UI::select_prev_strip ()
 668 {
 669         deselect_all_strip_processors();
 670         _session->selection().select_prev_stripable (true, false);
 671 }
 672
 673 void
 674 Mixer_UI::delete_processors ()
 675 {
 676         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 677                 (*i)->delete_processors();
 678         }
 679 }
 680
 681
 682 void
 683 Mixer_UI::remove_strip (MixerStrip* strip)
 684 {
 685         if (_session && _session->deletion_in_progress()) {
 686                 /* its all being taken care of */
 687                 return;
 688         }
 689
 690         TreeModel::Children rows = track_model->children();
 691         TreeModel::Children::iterator ri;
 692         list<MixerStrip *>::iterator i;
 693
 694         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 695                 strips.erase (i);
 696         }
 697
 698         PBD::Unwinder<bool> uwi (ignore_reorder, true);
 699
 700         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 701                 if ((*ri)[stripable_columns.strip] == strip) {
 702                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 703                         track_model->erase (ri);
 704                         break;
 705                 }
 706         }
 707 }
 708
 709 void
 710 Mixer_UI::presentation_info_changed (PropertyChange const & what_changed)
 711 {
 712         if (what_changed.contains (Properties::selected)) {
 713                 _selection.presentation_info_changed (what_changed);
 714         }
 715
 716         PropertyChange soh;
 717         soh.add (Properties::selected);
 718         soh.add (Properties::order);
 719         soh.add (Properties::hidden);
 720
 721         if (what_changed.contains (soh)) {
 722                 sync_treeview_from_presentation_info (what_changed);
 723         }
 724 }
 725
 726 void
 727 Mixer_UI::sync_presentation_info_from_treeview ()
 728 {
 729         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 730                 return;
 731         }
 732
 733         TreeModel::Children rows = track_model->children();
 734
 735         if (rows.empty()) {
 736                 return;
 737         }
 738
 739         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync presentation info from treeview\n");
 740
 741         TreeModel::Children::iterator ri;
 742         bool change = false;
 743
 744         PresentationInfo::order_t master_key = _session->master_order_key ();
 745         PresentationInfo::order_t order = 0;
 746
 747         PresentationInfo::ChangeSuspender cs;
 748
 749         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 750                 bool visible = (*ri)[stripable_columns.visible];
 751                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 752
 753 #ifndef NDEBUG // these should not exist in the mixer's treeview
 754                 if (!stripable) {
 755                         assert (0);
 756                         continue;
 757                 }
 758                 if (stripable->is_monitor() || stripable->is_auditioner()) {
 759                         assert (0);
 760                         continue;
 761                 }
 762                 if (stripable->is_master()) {
 763                         assert (0);
 764                         continue;
 765                 }
 766 #endif
 767
 768                 stripable->presentation_info().set_hidden (!visible);
 769
 770                 // leave master where it is.
 771                 if (order == master_key) {
 772                         ++order;
 773                 }
 774
 775                 if (order != stripable->presentation_info().order()) {
 776                         stripable->set_presentation_order (order);
 777                         change = true;
 778                 }
 779                 ++order;
 780         }
 781
 782         change |= _session->ensure_stripable_sort_order ();
 783
 784         if (change) {
 785                 DEBUG_TRACE (DEBUG::OrderKeys, "... notify PI change from mixer GUI\n");
 786                 _session->set_dirty();
 787         }
 788 }
 789
 790 void
 791 Mixer_UI::sync_treeview_from_presentation_info (PropertyChange const & what_changed)
 792 {
 793         if (!_session || _session->deletion_in_progress()) {
 794                 return;
 795         }
 796
 797         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from presentation info.\n");
 798
 799         /* we could get here after either a change in the Mixer or Editor sort
 800          * order, but either way, the mixer order keys reflect the intended
 801          * order for the GUI, so reorder the treeview model to match it.
 802          */
 803
 804         vector<int> neworder;
 805         TreeModel::Children rows = track_model->children();
 806         uint32_t old_order = 0;
 807         bool changed = false;
 808
 809         if (rows.empty()) {
 810                 return;
 811         }
 812
 813         TreeOrderKeys sorted;
 814         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 815                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 816                 sorted.push_back (TreeOrderKey (old_order, stripable));
 817         }
 818
 819         TreeOrderKeySorter cmp;
 820
 821         sort (sorted.begin(), sorted.end(), cmp);
 822         neworder.assign (sorted.size(), 0);
 823
 824         uint32_t n = 0;
 825
 826         for (TreeOrderKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 827
 828                 neworder[n] = sr->old_display_order;
 829
 830                 if (sr->old_display_order != n) {
 831                         changed = true;
 832                 }
 833         }
 834
 835         if (changed) {
 836                 Unwinder<bool> uw (ignore_reorder, true);
 837                 track_model->reorder (neworder);
 838         }
 839
 840         if (what_changed.contains (Properties::selected)) {
 841
 842                 PresentationInfo::ChangeSuspender cs;
 843
 844                 for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 845                         boost::shared_ptr<Stripable> stripable = (*i)->stripable();
 846                         if (stripable && stripable->is_selected()) {
 847                                 _selection.add (*i);
 848                         } else {
 849                                 _selection.remove (*i);
 850                         }
 851                 }
 852
 853                 if (!_selection.axes.empty() && !PublicEditor::instance().track_selection_change_without_scroll () && !_strip_selection_change_without_scroll) {
 854                         move_stripable_into_view ((*_selection.axes.begin())->stripable());
 855                 }
 856
 857                 TreeModel::Children rows = track_model->children();
 858                 for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
 859                         AxisView* av = (*i)[stripable_columns.strip];
 860                         VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
 861                         if (!vms) {
 862                                 continue;
 863                         }
 864                         if (vms->vca() && vms->vca()->is_selected()) {
 865                                 _selection.add (vms);
 866                         } else {
 867                                 _selection.remove (vms);
 868                         }
 869                 }
 870         }
 871
 872         redisplay_track_list ();
 873 }
 874
 875
 876 MixerStrip*
 877 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r) const
 878 {
 879         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 880                 if ((*i)->route() == r) {
 881                         return (*i);
 882                 }
 883         }
 884
 885         return 0;
 886 }
 887
 888 MixerStrip*
 889 Mixer_UI::strip_by_stripable (boost::shared_ptr<Stripable> s) const
 890 {
 891         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 892                 if ((*i)->stripable() == s) {
 893                         return (*i);
 894                 }
 895         }
 896
 897         return 0;
 898 }
 899
 900 AxisView*
 901 Mixer_UI::axis_view_by_stripable (boost::shared_ptr<Stripable> s) const
 902 {
 903         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 904                 if ((*i)->stripable() == s) {
 905                         return (*i);
 906                 }
 907         }
 908
 909         TreeModel::Children rows = track_model->children();
 910         for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
 911                 AxisView* av = (*i)[stripable_columns.strip];
 912                 VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
 913                 if (vms && vms->stripable () == s) {
 914                         return av;
 915                 }
 916         }
 917
 918         return 0;
 919 }
 920
 921 AxisView*
 922 Mixer_UI::axis_view_by_control (boost::shared_ptr<AutomationControl> c) const
 923 {
 924         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 925                 if ((*i)->control() == c) {
 926                         return (*i);
 927                 }
 928         }
 929
 930         return 0;
 931 }
 932
 933 bool
 934 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 935 {
 936         /* Selecting a mixer-strip may also select grouped-tracks, and
 937          * presentation_info_changed() being emitted and
 938          * _selection.axes.begin() is being moved into view. This may
 939          * effectively move the track that was clicked-on out of view.
 940          *
 941          * So here only the track that is actually clicked-on is moved into
 942          * view (in case it's partially visible)
 943          */
 944         PBD::Unwinder<bool> uw (_strip_selection_change_without_scroll, true);
 945         move_stripable_into_view (strip->stripable());
 946
 947         if (ev->button == 1) {
 948                 if (_selection.selected (strip)) {
 949                         /* primary-click: toggle selection state of strip */
 950                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 951                                 _selection.remove (strip, true);
 952                         } else if (_selection.axes.size() > 1) {
 953                                 /* de-select others */
 954                                 _selection.set (strip);
 955                         }
 956                         PublicEditor& pe = PublicEditor::instance();
 957                         TimeAxisView* tav = pe.time_axis_view_from_stripable (strip->stripable());
 958                         if (tav) {
 959                                 pe.set_selected_mixer_strip (*tav);
 960                         }
 961                 } else {
 962                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 963                                 _selection.add (strip, true);
 964                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 965
 966                                 /* extend selection */
 967
 968                                 vector<MixerStrip*> tmp;
 969                                 bool accumulate = false;
 970                                 bool found_another = false;
 971
 972                                 strips.sort (MixerStripSorter());
 973
 974                                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 975                                         MixerStrip* ms = *i;
 976                                         assert (ms);
 977
 978                                         if (ms == strip) {
 979                                                 /* hit clicked strip, start accumulating till we hit the first
 980                                                    selected strip
 981                                                 */
 982                                                 if (accumulate) {
 983                                                         /* done */
 984                                                         break;
 985                                                 } else {
 986                                                         accumulate = true;
 987                                                 }
 988                                         } else if (_selection.selected (ms)) {
 989                                                 /* hit selected strip. if currently accumulating others,
 990                                                    we're done. if not accumulating others, start doing so.
 991                                                 */
 992                                                 found_another = true;
 993                                                 if (accumulate) {
 994                                                         /* done */
 995                                                         break;
 996                                                 } else {
 997                                                         accumulate = true;
 998                                                 }
 999                                         } else {
1000                                                 if (accumulate) {
1001                                                         tmp.push_back (ms);
1002                                                 }
1003                                         }
1004                                 }
1005
1006                                 tmp.push_back (strip);
1007
1008                                 if (found_another) {
1009                                         PresentationInfo::ChangeSuspender cs;
1010                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
1011                                                 _selection.add (*i, true);
1012                                         }
1013                                 } else {
1014                                         _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
1015                                 }
1016                         } else {
1017                                 _selection.set (strip);
1018                         }
1019                 }
1020         }
1021
1022         return true;
1023 }
1024
1025 bool
1026 Mixer_UI::vca_button_release_event (GdkEventButton *ev, VCAMasterStrip *strip)
1027 {
1028         _selection.set (strip);
1029         return true;
1030 }
1031
1032 void
1033 Mixer_UI::set_session (Session* sess)
1034 {
1035         SessionHandlePtr::set_session (sess);
1036         _monitor_section.set_session (sess);
1037
1038         if (_plugin_selector) {
1039                 _plugin_selector->set_session (_session);
1040         }
1041
1042         _group_tabs->set_session (sess);
1043
1044         if (!_session) {
1045                 _selection.clear ();
1046                 return;
1047         }
1048
1049         refill_favorite_plugins();
1050         refill_tag_combo();
1051
1052         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1053         set_state (*node, 0);
1054
1055         update_title ();
1056
1057         initial_track_display ();
1058
1059         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_routes, this, _1), gui_context());
1060         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
1061         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
1062         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
1063         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
1064         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
1065         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
1066
1067         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_masters, this, _1), gui_context());
1068         _session->vca_manager().VCACreated.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::new_masters_created, this), gui_context());
1069
1070         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
1071
1072         route_groups_changed ();
1073
1074         if (_visible) {
1075                 show_window();
1076         }
1077
1078         /* catch up on selection state, etc. */
1079
1080         PropertyChange sc;
1081         sc.add (Properties::selected);
1082         _selection.presentation_info_changed (sc);
1083
1084         start_updating ();
1085 }
1086
1087 void
1088 Mixer_UI::session_going_away ()
1089 {
1090         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
1091
1092         _in_group_rebuild_or_clear = true;
1093         group_model->clear ();
1094         _in_group_rebuild_or_clear = false;
1095
1096         _selection.clear ();
1097         track_model->clear ();
1098
1099         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1100                 delete (*i);
1101         }
1102
1103         _monitor_section.tearoff().hide_visible ();
1104
1105         monitor_section_detached ();
1106
1107         strips.clear ();
1108
1109         stop_updating ();
1110
1111         SessionHandlePtr::session_going_away ();
1112
1113         _session = 0;
1114         update_title ();
1115 }
1116
1117 void
1118 Mixer_UI::track_visibility_changed (std::string const & path)
1119 {
1120         if (_session && _session->deletion_in_progress()) {
1121                 return;
1122         }
1123
1124         TreeIter iter;
1125
1126         if ((iter = track_model->get_iter (path))) {
1127
1128                 AxisView* av = (*iter)[stripable_columns.strip];
1129                 bool visible = (*iter)[stripable_columns.visible];
1130
1131                 if (av->set_marked_for_display (!visible)) {
1132                         update_track_visibility ();
1133                 }
1134         }
1135 }
1136
1137 void
1138 Mixer_UI::update_track_visibility ()
1139 {
1140         TreeModel::Children rows = track_model->children();
1141         TreeModel::Children::iterator i;
1142
1143         {
1144                 Unwinder<bool> uw (no_track_list_redisplay, true);
1145
1146                 for (i = rows.begin(); i != rows.end(); ++i) {
1147                         AxisView* av = (*i)[stripable_columns.strip];
1148                         (*i)[stripable_columns.visible] = av->marked_for_display ();
1149                 }
1150
1151                 /* force presentation catch up with visibility changes
1152                  */
1153
1154                 sync_presentation_info_from_treeview ();
1155         }
1156
1157         redisplay_track_list ();
1158 }
1159
1160 void
1161 Mixer_UI::show_strip (MixerStrip* ms)
1162 {
1163         TreeModel::Children rows = track_model->children();
1164         TreeModel::Children::iterator i;
1165
1166         for (i = rows.begin(); i != rows.end(); ++i) {
1167
1168                 AxisView* av = (*i)[stripable_columns.strip];
1169                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1170                 if (strip == ms) {
1171                         (*i)[stripable_columns.visible] = true;
1172                         av->set_marked_for_display (true);
1173                         update_track_visibility ();
1174                         break;
1175                 }
1176         }
1177 }
1178
1179 void
1180 Mixer_UI::hide_strip (MixerStrip* ms)
1181 {
1182         TreeModel::Children rows = track_model->children();
1183         TreeModel::Children::iterator i;
1184
1185         for (i = rows.begin(); i != rows.end(); ++i) {
1186
1187                 AxisView* av = (*i)[stripable_columns.strip];
1188                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1189                 if (strip == ms) {
1190                         (*i)[stripable_columns.visible] = false;
1191                         av->set_marked_for_display (false);
1192                         update_track_visibility ();
1193                         break;
1194                 }
1195         }
1196 }
1197
1198 gint
1199 Mixer_UI::start_updating ()
1200 {
1201         fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
1202         return 0;
1203 }
1204
1205 gint
1206 Mixer_UI::stop_updating ()
1207 {
1208         fast_screen_update_connection.disconnect();
1209         return 0;
1210 }
1211
1212 void
1213 Mixer_UI::fast_update_strips ()
1214 {
1215         if (_content.is_mapped () && _session) {
1216                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1217                         (*i)->fast_update ();
1218                 }
1219         }
1220 }
1221
1222 void
1223 Mixer_UI::set_all_strips_visibility (bool yn)
1224 {
1225         TreeModel::Children rows = track_model->children();
1226         TreeModel::Children::iterator i;
1227
1228         {
1229                 Unwinder<bool> uw (no_track_list_redisplay, true);
1230
1231                 for (i = rows.begin(); i != rows.end(); ++i) {
1232
1233                         AxisView* av = (*i)[stripable_columns.strip];
1234                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1235
1236                         if (!strip) {
1237                                 continue;
1238                         }
1239
1240                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1241                                 continue;
1242                         }
1243
1244                         (*i)[stripable_columns.visible] = yn;
1245                 }
1246         }
1247
1248         redisplay_track_list ();
1249 }
1250
1251
1252 void
1253 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
1254 {
1255         TreeModel::Children rows = track_model->children();
1256         TreeModel::Children::iterator i;
1257
1258         {
1259                 Unwinder<bool> uw (no_track_list_redisplay, true);
1260
1261                 for (i = rows.begin(); i != rows.end(); ++i) {
1262
1263                         AxisView* av = (*i)[stripable_columns.strip];
1264                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1265
1266                         if (!strip) {
1267                                 continue;
1268                         }
1269
1270                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1271                                 continue;
1272                         }
1273
1274                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
1275                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
1276
1277                         switch (tracks) {
1278                         case 0:
1279                                 (*i)[stripable_columns.visible] = yn;
1280                                 break;
1281
1282                         case 1:
1283                                 if (at) { /* track */
1284                                         (*i)[stripable_columns.visible] = yn;
1285                                 }
1286                                 break;
1287
1288                         case 2:
1289                                 if (!at && !mt) { /* bus */
1290                                         (*i)[stripable_columns.visible] = yn;
1291                                 }
1292                                 break;
1293
1294                         case 3:
1295                                 if (mt) { /* midi-track */
1296                                         (*i)[stripable_columns.visible] = yn;
1297                                 }
1298                                 break;
1299                         }
1300                 }
1301         }
1302
1303         redisplay_track_list ();
1304 }
1305
1306 void
1307 Mixer_UI::hide_all_routes ()
1308 {
1309         set_all_strips_visibility (false);
1310 }
1311
1312 void
1313 Mixer_UI::show_all_routes ()
1314 {
1315         set_all_strips_visibility (true);
1316 }
1317
1318 void
1319 Mixer_UI::show_all_audiobus ()
1320 {
1321         set_all_audio_midi_visibility (2, true);
1322 }
1323 void
1324 Mixer_UI::hide_all_audiobus ()
1325 {
1326         set_all_audio_midi_visibility (2, false);
1327 }
1328
1329 void
1330 Mixer_UI::show_all_audiotracks()
1331 {
1332         set_all_audio_midi_visibility (1, true);
1333 }
1334 void
1335 Mixer_UI::hide_all_audiotracks ()
1336 {
1337         set_all_audio_midi_visibility (1, false);
1338 }
1339
1340 void
1341 Mixer_UI::show_all_miditracks()
1342 {
1343         set_all_audio_midi_visibility (3, true);
1344 }
1345 void
1346 Mixer_UI::hide_all_miditracks ()
1347 {
1348         set_all_audio_midi_visibility (3, false);
1349 }
1350
1351 void
1352 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1353 {
1354         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1355         sync_presentation_info_from_treeview ();
1356 }
1357
1358 void
1359 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1360 {
1361         /* this happens as the second step of a DnD within the treeview as well
1362            as when a row/route is actually deleted.
1363
1364            if it was a deletion then we have to force a redisplay because
1365            order keys may not have changed.
1366         */
1367
1368         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1369         sync_presentation_info_from_treeview ();
1370
1371         if (_route_deletion_in_progress) {
1372                 redisplay_track_list ();
1373         }
1374 }
1375
1376 void
1377 Mixer_UI::spill_redisplay (boost::shared_ptr<VCA> vca)
1378 {
1379         TreeModel::Children rows = track_model->children();
1380         std::list<boost::shared_ptr<VCA> > vcas;
1381         vcas.push_back (vca);
1382
1383         for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
1384                 AxisView* av = (*i)[stripable_columns.strip];
1385                 VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
1386                 if (vms && vms->vca()->slaved_to (vca)) {
1387                         vcas.push_back (vms->vca());
1388                 }
1389         }
1390
1391         for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
1392
1393                 AxisView* av = (*i)[stripable_columns.strip];
1394                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1395                 bool const visible = (*i)[stripable_columns.visible];
1396
1397                 if (!strip) {
1398                         /* we're in the middle of changing a row, don't worry */
1399                         continue;
1400                 }
1401
1402                 if (!strip->route()) {
1403                         /* non-route element */
1404                         continue;
1405                 }
1406
1407                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1408                         continue;
1409                 }
1410
1411                 bool slaved = false;
1412                 for (std::list<boost::shared_ptr<VCA> >::const_iterator m = vcas.begin(); m != vcas.end(); ++m) {
1413                         if (strip->route()->slaved_to (*m)) {
1414                                 slaved = true;
1415                                 break;
1416                         }
1417                 }
1418
1419                 if (slaved && visible) {
1420
1421                         if (strip->packed()) {
1422                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1423                         } else {
1424                                 strip_packer.pack_start (*strip, false, false);
1425                                 strip->set_packed (true);
1426                         }
1427
1428                 } else {
1429
1430                         if (strip->packed()) {
1431                                 strip_packer.remove (*strip);
1432                                 strip->set_packed (false);
1433                         }
1434                 }
1435         }
1436 }
1437
1438 void
1439 Mixer_UI::redisplay_track_list ()
1440 {
1441         if (no_track_list_redisplay) {
1442                 return;
1443         }
1444
1445         boost::shared_ptr<Stripable> ss = spilled_strip.lock ();
1446         if (ss) {
1447                 boost::shared_ptr<VCA> sv = boost::dynamic_pointer_cast<VCA> (ss);
1448                 if (sv) {
1449                         if (_spill_scroll_position <= 0 && scroller.get_hscrollbar()) {
1450                                 _spill_scroll_position = scroller.get_hscrollbar()->get_adjustment()->get_value();
1451                         }
1452                         spill_redisplay (sv);
1453                         return;
1454                 }
1455         }
1456
1457         TreeModel::Children rows = track_model->children();
1458         TreeModel::Children::iterator i;
1459         uint32_t n_masters = 0;
1460
1461         container_clear (vca_hpacker);
1462
1463         vca_hpacker.pack_end (vca_scroller_base, true, true);
1464         vca_hpacker.pack_end (add_vca_button, false, false);
1465
1466         add_vca_button.show ();
1467         vca_scroller_base.show();
1468
1469         for (i = rows.begin(); i != rows.end(); ++i) {
1470
1471                 AxisView* s = (*i)[stripable_columns.strip];
1472                 bool const visible = (*i)[stripable_columns.visible];
1473                 boost::shared_ptr<Stripable> stripable = (*i)[stripable_columns.stripable];
1474
1475                 if (!s) {
1476                         /* we're in the middle of changing a row, don't worry */
1477                         continue;
1478                 }
1479
1480                 VCAMasterStrip* vms;
1481
1482                 if ((vms = dynamic_cast<VCAMasterStrip*> (s))) {
1483                         if (visible) {
1484                                 vca_hpacker.pack_start (*vms, false, false);
1485                                 vms->show ();
1486                                 n_masters++;
1487                         }
1488                         continue;
1489                 }
1490
1491                 MixerStrip* strip = dynamic_cast<MixerStrip*> (s);
1492
1493                 if (!strip) {
1494                         continue;
1495                 }
1496
1497                 if (visible) {
1498
1499                         if (strip->packed()) {
1500                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1501                         } else {
1502                                 strip_packer.pack_start (*strip, false, false);
1503                                 strip->set_packed (true);
1504                         }
1505
1506                 } else {
1507
1508                         if (stripable->is_master() || stripable->is_monitor()) {
1509                                 /* do nothing, these cannot be hidden */
1510                         } else {
1511                                 if (strip->packed()) {
1512                                         strip_packer.remove (*strip);
1513                                         strip->set_packed (false);
1514                                 }
1515                         }
1516                 }
1517         }
1518
1519         /* update visibility of VCA assign buttons */
1520
1521         if (n_masters == 0) {
1522                 //show/hide the channelstrip VCA assign buttons on channelstrips:
1523                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::remove_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1524
1525                 Glib::RefPtr<Action> act = ActionManager::get_action ("Mixer", "ToggleVCAPane");
1526                 if (act) {
1527                         act->set_sensitive (false);
1528                 }
1529
1530                 //remove the VCA packer, but don't change our prior setting for show/hide:
1531                 vca_vpacker.hide ();
1532         } else {
1533                 //show/hide the channelstrip VCA assign buttons on channelstrips:
1534                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::add_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1535
1536                 Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleVCAPane");
1537                 act->set_sensitive (true);
1538
1539                 //if we were showing VCAs before, show them now:
1540                 showhide_vcas (act->get_active ());
1541         }
1542
1543         _group_tabs->set_dirty ();
1544
1545         if (_spill_scroll_position > 0 && scroller.get_hscrollbar()) {
1546                 Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1547                 adj->set_value (max (adj->get_lower(), min (adj->get_upper(), _spill_scroll_position)));
1548         }
1549         _spill_scroll_position = 0;
1550
1551 }
1552
1553 void
1554 Mixer_UI::strip_width_changed ()
1555 {
1556         _group_tabs->set_dirty ();
1557
1558 #ifdef __APPLE__
1559         TreeModel::Children rows = track_model->children();
1560         TreeModel::Children::iterator i;
1561         long order;
1562
1563         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1564                 AxisView* av = (*i)[stripable_columns.strip];
1565                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1566
1567                 if (strip == 0) {
1568                         continue;
1569                 }
1570
1571                 bool visible = (*i)[stripable_columns.visible];
1572
1573                 if (visible) {
1574                         strip->queue_draw();
1575                 }
1576         }
1577 #endif
1578
1579 }
1580
1581 struct PresentationInfoMixerSorter
1582 {
1583         bool operator() (boost::shared_ptr<Stripable> a, boost::shared_ptr<Stripable> b) {
1584                 if (a->is_master()) {
1585                         /* master after everything else */
1586                         return false;
1587                 } else if (b->is_master()) {
1588                         /* everything else before master */
1589                         return true;
1590                 }
1591                 return a->presentation_info().order () < b->presentation_info().order ();
1592         }
1593 };
1594
1595 void
1596 Mixer_UI::initial_track_display ()
1597 {
1598         StripableList sl;
1599         _session->get_stripables (sl);
1600
1601         sl.sort (PresentationInfoMixerSorter());
1602
1603         {
1604                 /* These are also used inside ::add_stripables() but we need
1605                  *  them here because we're going to clear the track_model also.
1606                  */
1607                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1608                 Unwinder<bool> uw2 (ignore_reorder, true);
1609
1610                 track_model->clear ();
1611                 add_stripables (sl);
1612         }
1613
1614         sync_treeview_from_presentation_info (Properties::order);
1615 }
1616
1617 bool
1618 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1619 {
1620         if (Keyboard::is_context_menu_event (ev)) {
1621                 if (track_menu == 0) {
1622                         build_track_menu ();
1623                 }
1624                 track_menu->popup (ev->button, ev->time);
1625                 return true;
1626         }
1627         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 1)) {
1628                 TreeModel::Path path;
1629                 TreeViewColumn* column;
1630                 int cellx, celly;
1631                 if (track_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1632                         TreeIter iter = track_model->get_iter (path);
1633                         if ((*iter)[stripable_columns.visible]) {
1634                                 boost::shared_ptr<ARDOUR::Stripable> s = (*iter)[stripable_columns.stripable];
1635                                 move_stripable_into_view (s);
1636                         }
1637                 }
1638         }
1639
1640         return false;
1641 }
1642
1643 void
1644 Mixer_UI::move_vca_into_view (boost::shared_ptr<ARDOUR::Stripable> s)
1645 {
1646         if (!vca_scroller.get_hscrollbar()) {
1647                 return;
1648         }
1649
1650         bool found = false;
1651         int x0 = 0;
1652         Gtk::Allocation alloc;
1653
1654         TreeModel::Children rows = track_model->children();
1655         for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
1656                 AxisView* av = (*i)[stripable_columns.strip];
1657                 VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
1658                 if (vms && vms->stripable () == s) {
1659                         int y;
1660                         found = true;
1661                         vms->translate_coordinates (vca_hpacker, 0, 0, x0, y);
1662                         alloc = vms->get_allocation ();
1663                         break;
1664                 }
1665         }
1666
1667         if (!found) {
1668                 return;
1669         }
1670
1671         Adjustment* adj = vca_scroller.get_hscrollbar()->get_adjustment();
1672
1673         if (x0 < adj->get_value()) {
1674                 adj->set_value (max (adj->get_lower(), min (adj->get_upper(), (double) x0)));
1675         } else if (x0 + alloc.get_width() >= adj->get_value() + adj->get_page_size()) {
1676                 int x1 = x0 + alloc.get_width() - adj->get_page_size();
1677                 adj->set_value (max (adj->get_lower(), min (adj->get_upper(), (double) x1)));
1678         }
1679 }
1680
1681 void
1682 Mixer_UI::move_stripable_into_view (boost::shared_ptr<ARDOUR::Stripable> s)
1683 {
1684         if (!scroller.get_hscrollbar()) {
1685                 return;
1686         }
1687         if (s->presentation_info().special ()) {
1688                 return;
1689         }
1690         if (s->presentation_info().flag_match (PresentationInfo::VCA)) {
1691                 move_vca_into_view (s);
1692         }
1693 #ifdef MIXBUS
1694         if (s->mixbus ()) {
1695                 return;
1696         }
1697 #endif
1698         bool found = false;
1699         int x0 = 0;
1700         Gtk::Allocation alloc;
1701         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
1702                 if ((*i)->route() == s) {
1703                         int y;
1704                         found = true;
1705                         (*i)->translate_coordinates (strip_packer, 0, 0, x0, y);
1706                         alloc = (*i)->get_allocation ();
1707                         break;
1708                 }
1709         }
1710         if (!found) {
1711                 return;
1712         }
1713
1714         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1715
1716         if (x0 < adj->get_value()) {
1717                 adj->set_value (max (adj->get_lower(), min (adj->get_upper(), (double) x0)));
1718         } else if (x0 + alloc.get_width() >= adj->get_value() + adj->get_page_size()) {
1719                 int x1 = x0 + alloc.get_width() - adj->get_page_size();
1720                 adj->set_value (max (adj->get_lower(), min (adj->get_upper(), (double) x1)));
1721         }
1722 }
1723
1724 void
1725 Mixer_UI::build_track_menu ()
1726 {
1727         using namespace Menu_Helpers;
1728         using namespace Gtk;
1729
1730         track_menu = new Menu;
1731         track_menu->set_name ("ArdourContextMenu");
1732         MenuList& items = track_menu->items();
1733
1734         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1735         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1736         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1737         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1738         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1739         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1740         items.push_back (MenuElem (_("Show All Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1741         items.push_back (MenuElem (_("Hide All Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1742
1743 }
1744
1745 void
1746 Mixer_UI::stripable_property_changed (const PropertyChange& what_changed, boost::weak_ptr<Stripable> ws)
1747 {
1748         if (!what_changed.contains (ARDOUR::Properties::hidden) && !what_changed.contains (ARDOUR::Properties::name)) {
1749                 return;
1750         }
1751
1752         boost::shared_ptr<Stripable> s = ws.lock ();
1753
1754         if (!s) {
1755                 return;
1756         }
1757
1758         TreeModel::Children rows = track_model->children();
1759         TreeModel::Children::iterator i;
1760
1761         for (i = rows.begin(); i != rows.end(); ++i) {
1762                 boost::shared_ptr<Stripable> ss = (*i)[stripable_columns.stripable];
1763
1764                 if (s == ss) {
1765
1766                         if (what_changed.contains (ARDOUR::Properties::name)) {
1767                                 (*i)[stripable_columns.text] = s->name();
1768                         }
1769
1770                         if (what_changed.contains (ARDOUR::Properties::hidden)) {
1771                                 (*i)[stripable_columns.visible] = !s->presentation_info().hidden();
1772                                 redisplay_track_list ();
1773                         }
1774
1775                         return;
1776                 }
1777         }
1778
1779         if (s->is_master ()) {
1780                 return;
1781         }
1782
1783         error << _("track display list item for renamed strip not found!") << endmsg;
1784 }
1785
1786 bool
1787 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1788 {
1789         TreeModel::Path path;
1790         TreeViewColumn* column;
1791         int cellx;
1792         int celly;
1793
1794         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1795                 if (ev->button == 3) {
1796                         _group_tabs->get_menu(0)->popup (ev->button, ev->time);
1797                 }
1798                 return true;
1799         }
1800
1801         TreeIter iter = group_model->get_iter (path);
1802         if (!iter) {
1803                 if (ev->button == 3) {
1804                         _group_tabs->get_menu(0)->popup (ev->button, ev->time);
1805                 }
1806                 return true;
1807         }
1808
1809         RouteGroup* group = (*iter)[group_columns.group];
1810
1811         if (Keyboard::is_context_menu_event (ev)) {
1812                 _group_tabs->get_menu(group)->popup (1, ev->time);
1813                 return true;
1814         }
1815
1816         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1817         case 1:
1818                 if (Keyboard::is_edit_event (ev)) {
1819                         if (group) {
1820                                 // edit_route_group (group);
1821 #ifdef __APPLE__
1822                                 group_display.queue_draw();
1823 #endif
1824                                 return true;
1825                         }
1826                 }
1827                 break;
1828
1829         case 0:
1830         {
1831                 bool visible = (*iter)[group_columns.visible];
1832                 (*iter)[group_columns.visible] = !visible;
1833 #ifdef __APPLE__
1834                 group_display.queue_draw();
1835 #endif
1836                 return true;
1837         }
1838
1839         default:
1840                 break;
1841         }
1842
1843         return false;
1844  }
1845
1846 void
1847 Mixer_UI::activate_all_route_groups ()
1848 {
1849         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1850 }
1851
1852 void
1853 Mixer_UI::disable_all_route_groups ()
1854 {
1855         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1856 }
1857
1858 void
1859 Mixer_UI::route_groups_changed ()
1860 {
1861         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1862
1863         _in_group_rebuild_or_clear = true;
1864
1865         /* just rebuild the while thing */
1866
1867         group_model->clear ();
1868
1869 #if 0
1870         /* this is currently not used,
1871          * Mixer_UI::group_display_button_press() has a case for it,
1872          * and a commented edit_route_group() but that's n/a since 2011.
1873          *
1874          * This code is left as reminder that
1875          * row[group_columns.group] = 0 has special meaning.
1876          */
1877         {
1878                 TreeModel::Row row;
1879                 row = *(group_model->append());
1880                 row[group_columns.visible] = true;
1881                 row[group_columns.text] = (_("-all-"));
1882                 row[group_columns.group] = 0;
1883         }
1884 #endif
1885
1886         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1887
1888         _group_tabs->set_dirty ();
1889         _in_group_rebuild_or_clear = false;
1890 }
1891
1892 void
1893 Mixer_UI::new_route_group ()
1894 {
1895         _group_tabs->run_new_group_dialog (0, false);
1896 }
1897
1898 void
1899 Mixer_UI::remove_selected_route_group ()
1900 {
1901         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1902         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1903
1904         if (rows.empty()) {
1905                 return;
1906         }
1907
1908         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1909         TreeIter iter;
1910
1911         /* selection mode is single, so rows.begin() is it */
1912
1913         if ((iter = group_model->get_iter (*i))) {
1914
1915                 RouteGroup* rg = (*iter)[group_columns.group];
1916
1917                 if (rg) {
1918                         _session->remove_route_group (*rg);
1919                 }
1920         }
1921 }
1922
1923 void
1924 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1925 {
1926         if (in_group_row_change) {
1927                 return;
1928         }
1929
1930         /* force an update of any mixer strips that are using this group,
1931            otherwise mix group names don't change in mixer strips
1932         */
1933
1934         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1935                 if ((*i)->route_group() == group) {
1936                         (*i)->route_group_changed();
1937                 }
1938         }
1939
1940         TreeModel::iterator i;
1941         TreeModel::Children rows = group_model->children();
1942         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1943
1944         in_group_row_change = true;
1945
1946         for (i = rows.begin(); i != rows.end(); ++i) {
1947                 if ((*i)[group_columns.group] == group) {
1948                         (*i)[group_columns.visible] = !group->is_hidden ();
1949                         (*i)[group_columns.text] = group->name ();
1950                         break;
1951                 }
1952         }
1953
1954         in_group_row_change = false;
1955
1956         if (change.contains (Properties::name)) {
1957                 _group_tabs->set_dirty ();
1958         }
1959
1960         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1961                 if ((*j)->route_group() == group) {
1962                         if (group->is_hidden ()) {
1963                                 hide_strip (*j);
1964                         } else {
1965                                 show_strip (*j);
1966                         }
1967                 }
1968         }
1969 }
1970
1971 void
1972 Mixer_UI::toggle_mixer_list ()
1973 {
1974         Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMixerList");
1975         showhide_mixer_list (act->get_active());
1976 }
1977
1978 void
1979 Mixer_UI::showhide_mixer_list (bool yn)
1980 {
1981         if (yn) {
1982                 list_vpacker.show ();
1983         } else {
1984                 list_vpacker.hide ();
1985         }
1986 }
1987
1988 void
1989 Mixer_UI::toggle_monitor_section ()
1990 {
1991         Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMonitorSection");
1992         showhide_monitor_section (act->get_active());
1993 }
1994
1995
1996 void
1997 Mixer_UI::showhide_monitor_section (bool yn)
1998 {
1999         if (monitor_section().tearoff().torn_off()) {
2000                 return;
2001         }
2002
2003         if (yn) {
2004                 monitor_section().tearoff().show();
2005         } else {
2006                 monitor_section().tearoff().hide();
2007         }
2008 }
2009
2010 void
2011 Mixer_UI::toggle_vcas ()
2012 {
2013         Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleVCAPane");
2014         showhide_vcas (act->get_active());
2015 }
2016
2017 void
2018 Mixer_UI::showhide_vcas (bool yn)
2019 {
2020         if (yn) {
2021                 vca_vpacker.show();
2022         } else {
2023                 vca_vpacker.hide();
2024         }
2025 }
2026
2027 #ifdef MIXBUS
2028 void
2029 Mixer_UI::toggle_mixbuses ()
2030 {
2031         Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMixbusPane");
2032         showhide_mixbuses (act->get_active());
2033 }
2034
2035 void
2036 Mixer_UI::showhide_mixbuses (bool on)
2037 {
2038         if (on) {
2039                 mb_vpacker.show();
2040         } else {
2041                 mb_vpacker.hide();
2042         }
2043 }
2044 #endif
2045
2046
2047 void
2048 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
2049 {
2050         RouteGroup* group;
2051         TreeIter iter;
2052
2053         if ((iter = group_model->get_iter (path))) {
2054
2055                 if ((group = (*iter)[group_columns.group]) == 0) {
2056                         return;
2057                 }
2058
2059                 if (new_text != group->name()) {
2060                         group->set_name (new_text);
2061                 }
2062         }
2063 }
2064
2065 void
2066 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
2067 {
2068         RouteGroup* group;
2069
2070         if (in_group_row_change) {
2071                 return;
2072         }
2073
2074         if ((group = (*iter)[group_columns.group]) == 0) {
2075                 return;
2076         }
2077
2078         std::string name = (*iter)[group_columns.text];
2079
2080         if (name != group->name()) {
2081                 group->set_name (name);
2082         }
2083
2084         bool hidden = !(*iter)[group_columns.visible];
2085
2086         if (hidden != group->is_hidden ()) {
2087                 group->set_hidden (hidden, this);
2088         }
2089 }
2090
2091 /** Called when a group model row is deleted, but also when the model is
2092  *  reordered by a user drag-and-drop; the latter is what we are
2093  *  interested in here.
2094  */
2095 void
2096 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
2097 {
2098         if (_in_group_rebuild_or_clear) {
2099                 return;
2100         }
2101
2102         /* Re-write the session's route group list so that the new order is preserved */
2103
2104         list<RouteGroup*> new_list;
2105
2106         Gtk::TreeModel::Children children = group_model->children();
2107         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
2108                 RouteGroup* g = (*i)[group_columns.group];
2109                 if (g) {
2110                         new_list.push_back (g);
2111                 }
2112         }
2113
2114         _session->reorder_route_groups (new_list);
2115 }
2116
2117
2118 void
2119 Mixer_UI::add_route_group (RouteGroup* group)
2120 {
2121         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
2122         bool focus = false;
2123
2124         in_group_row_change = true;
2125
2126         TreeModel::Row row = *(group_model->append());
2127         row[group_columns.visible] = !group->is_hidden ();
2128         row[group_columns.group] = group;
2129         if (!group->name().empty()) {
2130                 row[group_columns.text] = group->name();
2131         } else {
2132                 row[group_columns.text] = _("unnamed");
2133                 focus = true;
2134         }
2135
2136         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
2137
2138         if (focus) {
2139                 TreeViewColumn* col = group_display.get_column (0);
2140                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
2141                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
2142         }
2143
2144         _group_tabs->set_dirty ();
2145
2146         in_group_row_change = false;
2147 }
2148
2149 bool
2150 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
2151 {
2152         using namespace Menu_Helpers;
2153
2154         if (Keyboard::is_context_menu_event (ev)) {
2155                 ARDOUR_UI::instance()->add_route ();
2156                 return true;
2157         }
2158
2159         return false;
2160 }
2161
2162 void
2163 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
2164 {
2165         if (data.get_target() != "PluginFavoritePtr") {
2166                 context->drag_finish (false, false, time);
2167                 return;
2168         }
2169
2170         const void * d = data.get_data();
2171         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
2172
2173         PluginPresetList nfos;
2174         TreeView* source;
2175         tv->get_object_drag_data (nfos, &source);
2176
2177         Route::ProcessorList pl;
2178         bool ok = false;
2179
2180         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
2181                 PluginPresetPtr ppp = (*i);
2182                 PluginInfoPtr pip = ppp->_pip;
2183                 if (!pip->is_instrument ()) {
2184                         continue;
2185                 }
2186                 ARDOUR_UI::instance()->session_add_midi_route (true, (RouteGroup*) 0, 1, _("MIDI"), Config->get_strict_io (), pip, ppp->_preset.valid ? &ppp->_preset : 0, PresentationInfo::max_order);
2187                 ok = true;
2188         }
2189
2190         context->drag_finish (ok, false, time);
2191 }
2192
2193 void
2194 Mixer_UI::set_strip_width (Width w, bool save)
2195 {
2196         _strip_width = w;
2197
2198         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2199                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
2200         }
2201 }
2202
2203
2204 struct PluginStateSorter {
2205 public:
2206         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2207                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
2208                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
2209                 if (aiter != _user.end() && biter != _user.end()) {
2210                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
2211                 }
2212                 if (aiter != _user.end()) {
2213                         return true;
2214                 }
2215                 if (biter != _user.end()) {
2216                         return false;
2217                 }
2218                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2219         }
2220
2221         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
2222 private:
2223         std::list<std::string> _user;
2224 };
2225
2226 int
2227 Mixer_UI::set_state (const XMLNode& node, int version)
2228 {
2229         bool yn;
2230
2231         Tabbable::set_state (node, version);
2232
2233         if (node.get_property ("narrow-strips", yn)) {
2234                 if (yn) {
2235                         set_strip_width (Narrow);
2236                 } else {
2237                         set_strip_width (Wide);
2238                 }
2239         }
2240
2241         node.get_property ("show-mixer", _visible);
2242
2243         yn = false;
2244         node.get_property ("maximised", yn);
2245         {
2246                 Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Common"), X_("ToggleMaximalMixer"));
2247                 bool fs = act && act->get_active();
2248                 if (yn ^ fs) {
2249                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
2250                 }
2251         }
2252
2253         yn = true;
2254         node.get_property ("show-mixer-list", yn);
2255         {
2256                 Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Mixer"), X_("ToggleMixerList"));
2257                 /* do it twice to force the change */
2258                 act->set_active (!yn);
2259                 act->set_active (yn);
2260         }
2261
2262         yn = true;
2263         node.get_property ("monitor-section-visible", yn);
2264         {
2265                 Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Mixer"), X_("ToggleMonitorSection"));
2266                 /* do it twice to force the change */
2267                 act->set_active (!yn);
2268                 act->set_active (yn);
2269         }
2270
2271         yn = true;
2272         node.get_property ("show-vca-pane", yn);
2273         {
2274                 Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Mixer"), X_("ToggleVCAPane"));
2275                 /* do it twice to force the change */
2276                 act->set_active (!yn);
2277                 act->set_active (yn);
2278         }
2279
2280 #ifdef MIXBUS
2281         yn = true;
2282         node.get_property ("show-mixbus-pane", yn);
2283         {
2284                 Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action (X_("Mixer"), X_("ToggleMixbusPane"));
2285                 /* do it twice to force the change */
2286                 act->set_active (!yn);
2287                 act->set_active (yn);
2288         }
2289 #endif
2290
2291         //check for the user's plugin_order file
2292         XMLNode plugin_order_new(X_("PO"));
2293         if (PluginManager::instance().load_plugin_order_file(plugin_order_new)) {
2294                 store_current_favorite_order ();
2295                 std::list<string> order;
2296                 const XMLNodeList& kids = plugin_order_new.children("PluginInfo");
2297                 XMLNodeConstIterator i;
2298                 for (i = kids.begin(); i != kids.end(); ++i) {
2299                         std::string unique_id;
2300                         if ((*i)->get_property ("unique-id", unique_id)) {
2301                                 order.push_back (unique_id);
2302                                 if ((*i)->get_property ("expanded", yn)) {
2303                                         favorite_ui_state[unique_id] = yn;
2304                                 }
2305                         }
2306                 }
2307                 PluginStateSorter cmp (order);
2308                 favorite_order.sort (cmp);
2309                 sync_treeview_from_favorite_order ();
2310
2311         } else {
2312                 //if there is no user file, then use an existing one from instant.xml
2313                 //NOTE: if you are loading an old session, this might come from the session's instant.xml
2314                 //Todo:  in the next major version, we should probably stop doing the instant.xml check, and just use the new file
2315                 XMLNode* plugin_order;
2316                 if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
2317                         store_current_favorite_order ();
2318                         std::list<string> order;
2319                         const XMLNodeList& kids = plugin_order->children("PluginInfo");
2320                         XMLNodeConstIterator i;
2321                         for (i = kids.begin(); i != kids.end(); ++i) {
2322                                 std::string unique_id;
2323                                 if ((*i)->get_property ("unique-id", unique_id)) {
2324                                         order.push_back (unique_id);
2325                                         if ((*i)->get_property ("expanded", yn)) {
2326                                                 favorite_ui_state[unique_id] = yn;
2327                                         }
2328                                 }
2329                         }
2330
2331                         PluginStateSorter cmp (order);
2332                         favorite_order.sort (cmp);
2333                         sync_treeview_from_favorite_order ();
2334                 }
2335         }
2336
2337         return 0;
2338 }
2339
2340 void
2341 Mixer_UI::save_plugin_order_file ()
2342 {
2343         //this writes the plugin order to the user's preference file ( plugin_metadata/plugin_order )
2344
2345         //NOTE:  this replaces the old code that stores info in instant.xml
2346         //why?  because instant.xml prefers the per-session settings, and we want this to be a global pref
2347
2348         store_current_favorite_order ();
2349         XMLNode plugin_order ("PluginOrder");
2350         uint32_t cnt = 0;
2351         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
2352                 XMLNode* p = new XMLNode ("PluginInfo");
2353                 p->set_property ("sort", cnt);
2354                 p->set_property ("unique-id", (*i)->unique_id);
2355                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
2356                         p->set_property ("expanded", favorite_ui_state[(*i)->unique_id]);
2357                 }
2358                 plugin_order.add_child_nocopy (*p);
2359         }
2360         PluginManager::instance().save_plugin_order_file( plugin_order );
2361 }
2362
2363 XMLNode&
2364 Mixer_UI::get_state ()
2365 {
2366         XMLNode* node = new XMLNode (X_("Mixer"));
2367
2368         node->add_child_nocopy (Tabbable::get_state());
2369
2370         node->set_property (X_("mixer-rhs-pane1-pos"), rhs_pane1.get_divider());
2371         node->set_property (X_("mixer-rhs_pane2-pos"), rhs_pane2.get_divider());
2372         node->set_property (X_("mixer-list-hpane-pos"), list_hpane.get_divider());
2373         node->set_property (X_("mixer-inner-pane-pos"),  inner_pane.get_divider());
2374
2375         node->set_property ("narrow-strips", (_strip_width == Narrow));
2376         node->set_property ("show-mixer", _visible);
2377         node->set_property ("maximised", _maximised);
2378
2379         Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMixerList");
2380         node->set_property ("show-mixer-list", act->get_active ());
2381
2382         act = ActionManager::get_toggle_action ("Mixer", "ToggleMonitorSection");
2383         node->set_property ("monitor-section-visible", act->get_active ());
2384
2385         act = ActionManager::get_toggle_action ("Mixer", "ToggleVCAPane");
2386         node->set_property ("show-vca-pane", act->get_active ());
2387
2388 #ifdef MIXBUS
2389         act = ActionManager::get_toggle_action ("Mixer", "ToggleMixbusPane");
2390         node->set_property ("show-mixbus-pane", act->get_active ());
2391 #endif
2392
2393         return *node;
2394 }
2395
2396 void
2397 Mixer_UI::scroll_left ()
2398 {
2399         if (!scroller.get_hscrollbar()) return;
2400         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2401         int sc_w = scroller.get_width();
2402         int sp_w = strip_packer.get_width();
2403         if (sp_w <= sc_w) {
2404                 return;
2405         }
2406         int lp = adj->get_value();
2407         int lm = 0;
2408         using namespace Gtk::Box_Helpers;
2409         const BoxList& strips = strip_packer.children();
2410         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2411                 if (i->get_widget() == & add_button) {
2412                         continue;
2413                 }
2414 #ifdef MIXBUS
2415                 if (i->get_widget() == &mb_shadow) {
2416                         continue;
2417                 }
2418 #endif
2419                 lm += i->get_widget()->get_width ();
2420                 if (lm >= lp) {
2421                         lm -= i->get_widget()->get_width ();
2422                         break;
2423                 }
2424         }
2425         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2426 }
2427
2428 void
2429 Mixer_UI::scroll_right ()
2430 {
2431         if (!scroller.get_hscrollbar()) return;
2432         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2433         int sc_w = scroller.get_width();
2434         int sp_w = strip_packer.get_width();
2435         if (sp_w <= sc_w) {
2436                 return;
2437         }
2438         int lp = adj->get_value();
2439         int lm = 0;
2440         using namespace Gtk::Box_Helpers;
2441         const BoxList& strips = strip_packer.children();
2442         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2443                 if (i->get_widget() == & add_button) {
2444                         continue;
2445                 }
2446 #ifdef MIXBUS
2447                 if (i->get_widget() == &mb_shadow) {
2448                         continue;
2449                 }
2450 #endif
2451                 lm += i->get_widget()->get_width ();
2452                 if (lm > lp + 1) {
2453                         break;
2454                 }
2455         }
2456         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2457 }
2458
2459 bool
2460 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
2461 {
2462         switch (ev->direction) {
2463         case GDK_SCROLL_LEFT:
2464                 scroll_left ();
2465                 return true;
2466         case GDK_SCROLL_UP:
2467                 if (ev->state & Keyboard::TertiaryModifier) {
2468                         scroll_left ();
2469                         return true;
2470                 }
2471                 return false;
2472
2473         case GDK_SCROLL_RIGHT:
2474                 scroll_right ();
2475                 return true;
2476
2477         case GDK_SCROLL_DOWN:
2478                 if (ev->state & Keyboard::TertiaryModifier) {
2479                         scroll_right ();
2480                         return true;
2481                 }
2482                 return false;
2483         }
2484
2485         return false;
2486 }
2487
2488 void
2489 Mixer_UI::vca_scroll_left ()
2490 {
2491         if (!vca_scroller.get_hscrollbar()) return;
2492         Adjustment* adj = vca_scroller.get_hscrollbar()->get_adjustment();
2493         int sc_w = vca_scroller.get_width();
2494         int sp_w = strip_packer.get_width();
2495         if (sp_w <= sc_w) {
2496                 return;
2497         }
2498         int lp = adj->get_value();
2499         int lm = 0;
2500         using namespace Gtk::Box_Helpers;
2501         const BoxList& strips = vca_hpacker.children();
2502         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2503                 if (i->get_widget() == &add_vca_button) {
2504                         continue;
2505                 }
2506                 lm += i->get_widget()->get_width ();
2507                 if (lm >= lp) {
2508                         lm -= i->get_widget()->get_width ();
2509                         break;
2510                 }
2511         }
2512         vca_scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2513 }
2514
2515 void
2516 Mixer_UI::vca_scroll_right ()
2517 {
2518         if (!vca_scroller.get_hscrollbar()) return;
2519         Adjustment* adj = vca_scroller.get_hscrollbar()->get_adjustment();
2520         int sc_w = vca_scroller.get_width();
2521         int sp_w = strip_packer.get_width();
2522         if (sp_w <= sc_w) {
2523                 return;
2524         }
2525         int lp = adj->get_value();
2526         int lm = 0;
2527         using namespace Gtk::Box_Helpers;
2528         const BoxList& strips = vca_hpacker.children();
2529         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2530                 if (i->get_widget() == &add_vca_button) {
2531                         continue;
2532                 }
2533                 lm += i->get_widget()->get_width ();
2534                 if (lm > lp + 1) {
2535                         break;
2536                 }
2537         }
2538         vca_scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2539 }
2540
2541 bool
2542 Mixer_UI::on_vca_scroll_event (GdkEventScroll* ev)
2543 {
2544         switch (ev->direction) {
2545         case GDK_SCROLL_LEFT:
2546                 vca_scroll_left ();
2547                 return true;
2548         case GDK_SCROLL_UP:
2549                 if (ev->state & Keyboard::TertiaryModifier) {
2550                         vca_scroll_left ();
2551                         return true;
2552                 }
2553                 return false;
2554
2555         case GDK_SCROLL_RIGHT:
2556                 vca_scroll_right ();
2557                 return true;
2558
2559         case GDK_SCROLL_DOWN:
2560                 if (ev->state & Keyboard::TertiaryModifier) {
2561                         vca_scroll_right ();
2562                         return true;
2563                 }
2564                 return false;
2565         }
2566
2567         return false;
2568 }
2569
2570 void
2571 Mixer_UI::parameter_changed (string const & p)
2572 {
2573         if (p == "show-group-tabs") {
2574                 bool const s = _session->config.get_show_group_tabs ();
2575                 if (s) {
2576                         _group_tabs->show ();
2577                 } else {
2578                         _group_tabs->hide ();
2579                 }
2580         } else if (p == "default-narrow_ms") {
2581                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2582                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2583                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2584                 }
2585         }
2586 }
2587
2588 void
2589 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2590 {
2591         g->set_active (a, this);
2592 }
2593
2594 PluginSelector*
2595 Mixer_UI::plugin_selector()
2596 {
2597 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2598         if (!_plugin_selector)
2599                 _plugin_selector = new PluginSelector (PluginManager::instance());
2600 #endif
2601
2602         return _plugin_selector;
2603 }
2604
2605 void
2606 Mixer_UI::setup_track_display ()
2607 {
2608         track_model = ListStore::create (stripable_columns);
2609         track_display.set_model (track_model);
2610         track_display.append_column (_("Show"), stripable_columns.visible);
2611         track_display.append_column (_("Strips"), stripable_columns.text);
2612         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2613         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2614         track_display.get_column (0)->set_expand(false);
2615         track_display.get_column (1)->set_expand(true);
2616         track_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2617         track_display.set_name (X_("EditGroupList"));
2618         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2619         track_display.set_reorderable (true);
2620         track_display.set_headers_visible (true);
2621         track_display.set_can_focus(false);
2622
2623         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2624         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2625
2626         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (0));
2627         track_list_visible_cell->property_activatable() = true;
2628         track_list_visible_cell->property_radio() = false;
2629         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2630
2631         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2632
2633         track_display_scroller.add (track_display);
2634         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2635
2636         VBox* v = manage (new VBox);
2637         v->show ();
2638         v->pack_start (track_display_scroller, true, true);
2639
2640         track_display_frame.set_name("BaseFrame");
2641         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2642         track_display_frame.add (*v);
2643
2644         track_display_scroller.show();
2645         track_display_frame.show();
2646         track_display.show();
2647 }
2648
2649 void
2650 Mixer_UI::new_track_or_bus ()
2651 {
2652         ARDOUR_UI::instance()->add_route ();
2653 }
2654
2655 void
2656 Mixer_UI::update_title ()
2657 {
2658         if (!own_window()) {
2659                 return;
2660         }
2661
2662         if (_session) {
2663                 string n;
2664
2665                 if (_session->snap_name() != _session->name()) {
2666                         n = _session->snap_name ();
2667                 } else {
2668                         n = _session->name ();
2669                 }
2670
2671                 if (_session->dirty ()) {
2672                         n = "*" + n;
2673                 }
2674
2675                 WindowTitle title (n);
2676                 title += S_("Window|Mixer");
2677                 title += Glib::get_application_name ();
2678                 own_window()->set_title (title.get_string());
2679
2680         } else {
2681
2682                 WindowTitle title (S_("Window|Mixer"));
2683                 title += Glib::get_application_name ();
2684                 own_window()->set_title (title.get_string());
2685         }
2686 }
2687
2688 MixerStrip*
2689 Mixer_UI::strip_by_x (int x)
2690 {
2691         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2692                 int x1, x2, y;
2693
2694                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2695                 x2 = x1 + (*i)->get_width();
2696
2697                 if (x >= x1 && x <= x2) {
2698                         return (*i);
2699                 }
2700         }
2701
2702         return 0;
2703 }
2704
2705 void
2706 Mixer_UI::set_axis_targets_for_operation ()
2707 {
2708         _axis_targets.clear ();
2709
2710         if (!_selection.empty()) {
2711                 _axis_targets = _selection.axes;
2712                 return;
2713         }
2714
2715 //  removed "implicit" selections of strips, after discussion on IRC
2716
2717 }
2718
2719 void
2720 Mixer_UI::monitor_section_going_away ()
2721 {
2722         XMLNode* ui_node = Config->extra_xml(X_("UI"));
2723
2724         /* immediate state save.
2725          *
2726          * Tearoff settings are otherwise only stored during
2727          * save_ardour_state(). The mon-section may or may not
2728          * exist at that point.
2729          */
2730
2731         if (ui_node) {
2732                 XMLNode* tearoff_node = ui_node->child (X_("Tearoffs"));
2733                 if (tearoff_node) {
2734                         tearoff_node->remove_nodes_and_delete (X_("monitor-section"));
2735                         XMLNode* t = new XMLNode (X_("monitor-section"));
2736                         _monitor_section.tearoff().add_state (*t);
2737                         tearoff_node->add_child_nocopy (*t);
2738                 }
2739         }
2740
2741         monitor_section_detached ();
2742         out_packer.remove (_monitor_section.tearoff());
2743 }
2744
2745 void
2746 Mixer_UI::toggle_midi_input_active (bool flip_others)
2747 {
2748         boost::shared_ptr<RouteList> rl (new RouteList);
2749         bool onoff = false;
2750
2751         set_axis_targets_for_operation ();
2752
2753         for (AxisViewSelection::iterator r = _axis_targets.begin(); r != _axis_targets.end(); ++r) {
2754                 boost::shared_ptr<MidiTrack> mt = boost::dynamic_pointer_cast<MidiTrack> ((*r)->stripable());
2755
2756                 if (mt) {
2757                         rl->push_back (mt);
2758                         onoff = !mt->input_active();
2759                 }
2760         }
2761
2762         _session->set_exclusive_input_active (rl, onoff, flip_others);
2763 }
2764
2765 void
2766 Mixer_UI::maximise_mixer_space ()
2767 {
2768         if (!own_window()) {
2769                 return;
2770         }
2771
2772         if (_maximised) {
2773                 return;
2774         }
2775
2776         _window->fullscreen ();
2777         _maximised = true;
2778 }
2779
2780 void
2781 Mixer_UI::restore_mixer_space ()
2782 {
2783         if (!own_window()) {
2784                 return;
2785         }
2786
2787         if (!_maximised) {
2788                 return;
2789         }
2790
2791         own_window()->unfullscreen();
2792         _maximised = false;
2793 }
2794
2795 void
2796 Mixer_UI::monitor_section_attached ()
2797 {
2798         Glib::RefPtr<ToggleAction> act = ActionManager::get_toggle_action ("Mixer", "ToggleMonitorSection");
2799         act->set_sensitive (true);
2800         showhide_monitor_section (act->get_active ());
2801 }
2802
2803 void
2804 Mixer_UI::monitor_section_detached ()
2805 {
2806         Glib::RefPtr<Action> act = ActionManager::get_action ("Mixer", "ToggleMonitorSection");
2807         act->set_sensitive (false);
2808 }
2809
2810 void
2811 Mixer_UI::store_current_favorite_order ()
2812 {
2813         typedef Gtk::TreeModel::Children type_children;
2814         type_children children = favorite_plugins_model->children();
2815         favorite_order.clear();
2816         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2817         {
2818                 Gtk::TreeModel::Row row = *iter;
2819                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2820                 favorite_order.push_back (ppp->_pip);
2821                 std::string name = row[favorite_plugins_columns.name];
2822                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2823         }
2824 }
2825
2826 void
2827 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2828 {
2829         Gtk::TreeModel::Row row = *iter;
2830         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2831         assert (ppp);
2832         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2833 }
2834
2835 void
2836 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2837 {
2838         PluginManager& manager (PluginManager::instance());
2839         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2840
2841                 /* not a Favorite? skip it */
2842                 if (manager.get_status (*i) != PluginManager::Favorite) {
2843                         continue;
2844                 }
2845
2846                 /* Check the tag combo selection, and skip this plugin if it doesn't match the selected tag(s) */
2847                 string test = favorite_plugins_tag_combo.get_active_text();
2848                 if (test != _("Show All")) {
2849                         vector<string> tags = manager.get_tags(*i);
2850
2851                         //does the selected tag match any of the tags in the plugin?
2852                         vector<string>::iterator tt =  find (tags.begin(), tags.end(), test);
2853                         if (tt == tags.end()) {
2854                                 continue;
2855                         }
2856                 }
2857
2858                 result.push_back (*i);
2859         }
2860 }
2861
2862 struct PluginCustomSorter {
2863 public:
2864         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2865                 PluginInfoList::const_iterator aiter = _user.begin();
2866                 PluginInfoList::const_iterator biter = _user.begin();
2867                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2868                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2869
2870                 if (aiter != _user.end() && biter != _user.end()) {
2871                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2872                 }
2873                 if (aiter != _user.end()) {
2874                         return true;
2875                 }
2876                 if (biter != _user.end()) {
2877                         return false;
2878                 }
2879                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2880         }
2881         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2882 private:
2883         PluginInfoList _user;
2884 };
2885
2886 void
2887 Mixer_UI::refill_favorite_plugins ()
2888 {
2889         PluginInfoList plugs;
2890         PluginManager& mgr (PluginManager::instance());
2891
2892 #ifdef LV2_SUPPORT
2893         refiller (plugs, mgr.lv2_plugin_info ());
2894 #endif
2895 #ifdef WINDOWS_VST_SUPPORT
2896         refiller (plugs, mgr.windows_vst_plugin_info ());
2897 #endif
2898 #ifdef LXVST_SUPPORT
2899         refiller (plugs, mgr.lxvst_plugin_info ());
2900 #endif
2901 #ifdef MACVST_SUPPORT
2902         refiller (plugs, mgr.mac_vst_plugin_info ());
2903 #endif
2904 #ifdef AUDIOUNIT_SUPPORT
2905         refiller (plugs, mgr.au_plugin_info ());
2906 #endif
2907         refiller (plugs, mgr.ladspa_plugin_info ());
2908         refiller (plugs, mgr.lua_plugin_info ());
2909
2910         store_current_favorite_order ();
2911
2912         PluginCustomSorter cmp (favorite_order);
2913         plugs.sort (cmp);
2914
2915         favorite_order = plugs;
2916
2917         sync_treeview_from_favorite_order ();
2918 }
2919
2920 void
2921 Mixer_UI::plugin_list_changed ()
2922 {
2923         refill_favorite_plugins();
2924         refill_tag_combo();
2925 }
2926
2927 void
2928 Mixer_UI::refill_tag_combo ()
2929 {
2930         PluginManager& mgr (PluginManager::instance());
2931
2932         std::vector<std::string> tags = mgr.get_all_tags (PluginManager::OnlyFavorites);
2933
2934         favorite_plugins_tag_combo.clear();
2935         favorite_plugins_tag_combo.append_text (_("Show All"));
2936
2937         for (vector<string>::iterator t = tags.begin (); t != tags.end (); ++t) {
2938                 favorite_plugins_tag_combo.append_text (*t);
2939         }
2940
2941         favorite_plugins_tag_combo.set_active_text (_("Show All"));
2942 }
2943
2944 void
2945 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2946 {
2947         TreeIter iter;
2948         if (!(iter = favorite_plugins_model->get_iter (path))) {
2949                 return;
2950         }
2951         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2952         if (!ppp) {
2953                 return;
2954         }
2955         PluginInfoPtr pip = ppp->_pip;
2956         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2957                 if (favorite_ui_state[pip->unique_id]) {
2958                         favorite_plugins_display.expand_row (path, true);
2959                 }
2960         }
2961 }
2962
2963 void
2964 Mixer_UI::sync_treeview_from_favorite_order ()
2965 {
2966         favorite_plugins_model->clear ();
2967         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2968                 PluginInfoPtr pip = (*i);
2969
2970                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2971                 newrow[favorite_plugins_columns.name] = (*i)->name;
2972                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2973                 if (!_session) {
2974                         continue;
2975                 }
2976
2977                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2978                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2979                         if (!(*j).user) {
2980                                 continue;
2981                         }
2982                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2983                         child_row[favorite_plugins_columns.name] = (*j).label;
2984                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2985                 }
2986                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2987                         if (favorite_ui_state[pip->unique_id]) {
2988                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2989                         }
2990                 }
2991         }
2992 }
2993
2994 void
2995 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2996 {
2997         using namespace Gtk::Menu_Helpers;
2998
2999         Gtk::Menu* m = ARDOUR_UI::instance()->shared_popup_menu ();
3000         MenuList& items = m->items ();
3001
3002         if (_selection.axes.empty()) {
3003                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
3004         } else {
3005                 items.push_back (MenuElem (_("Add at the top"),
3006                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
3007                 items.push_back (MenuElem (_("Add Pre-Fader"),
3008                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
3009                 items.push_back (MenuElem (_("Add Post-Fader"),
3010                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
3011                 items.push_back (MenuElem (_("Add at the end"),
3012                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
3013         }
3014
3015         items.push_back (SeparatorElem());
3016
3017         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
3018
3019         ARDOUR::PluginPresetPtr ppp = selected_plugin();
3020         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
3021                 // we cannot currently delete AU presets
3022                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
3023                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
3024                 }
3025         }
3026
3027         m->popup (ev->button, ev->time);
3028 }
3029
3030 bool
3031 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
3032 {
3033         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3)) {
3034                 TreeModel::Path path;
3035                 TreeViewColumn* column;
3036                 int cellx, celly;
3037                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
3038                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
3039                         if (selection) {
3040                                 selection->unselect_all();
3041                                 selection->select(path);
3042                         }
3043                 }
3044                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
3045                 if (ppp) {
3046                         popup_note_context_menu (ev);
3047                 }
3048         }
3049         return false;
3050 }
3051
3052
3053 PluginPresetPtr
3054 Mixer_UI::selected_plugin ()
3055 {
3056         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
3057         if (!selection) {
3058                 return PluginPresetPtr();
3059         }
3060         Gtk::TreeModel::iterator iter = selection->get_selected();
3061         if (!iter) {
3062                 return PluginPresetPtr();
3063         }
3064         return (*iter)[favorite_plugins_columns.plugin];
3065 }
3066
3067 void
3068 Mixer_UI::add_selected_processor (ProcessorPosition pos)
3069 {
3070         ARDOUR::PluginPresetPtr ppp = selected_plugin();
3071         if (ppp) {
3072                 add_favorite_processor (ppp, pos);
3073         }
3074 }
3075
3076 void
3077 Mixer_UI::delete_selected_preset ()
3078 {
3079         if (!_session) {
3080                 return;
3081         }
3082         ARDOUR::PluginPresetPtr ppp = selected_plugin();
3083         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
3084                 return;
3085         }
3086         PluginPtr plugin = ppp->_pip->load (*_session);
3087         plugin->get_presets();
3088         plugin->remove_preset (ppp->_preset.label);
3089 }
3090
3091 void
3092 Mixer_UI::remove_selected_from_favorites ()
3093 {
3094         ARDOUR::PluginPresetPtr ppp = selected_plugin();
3095         if (!ppp) {
3096                 return;
3097         }
3098         PluginManager::PluginStatusType status = PluginManager::Normal;
3099         PluginManager& manager (PluginManager::instance());
3100
3101         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
3102         manager.save_statuses ();
3103 }
3104
3105 void
3106 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
3107 {
3108         TreeIter iter;
3109         if (!(iter = favorite_plugins_model->get_iter (path))) {
3110                 return;
3111         }
3112         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
3113         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
3114 }
3115
3116 void
3117 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
3118 {
3119         if (!_session || _selection.axes.empty()) {
3120                 return;
3121         }
3122
3123         PluginInfoPtr pip = ppp->_pip;
3124         for (AxisViewSelection::iterator i = _selection.axes.begin(); i != _selection.axes.end(); ++i) {
3125                 boost::shared_ptr<ARDOUR::Route> rt = boost::dynamic_pointer_cast<ARDOUR::Route> ((*i)->stripable());
3126
3127                 if (!rt) {
3128                         continue;
3129                 }
3130
3131                 PluginPtr p = pip->load (*_session);
3132
3133                 if (!p) {
3134                         continue;
3135                 }
3136
3137                 if (ppp->_preset.valid) {
3138                         p->load_preset (ppp->_preset);
3139                 }
3140
3141                 Route::ProcessorStreams err;
3142                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
3143
3144                 switch (pos) {
3145                         case AddTop:
3146                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
3147                                 break;
3148                         case AddPreFader:
3149                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
3150                                 break;
3151                         case AddPostFader:
3152                                 {
3153                                         int idx = 0;
3154                                         int pos = 0;
3155                                         for (;;++idx) {
3156                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
3157                                                 if (!np) {
3158                                                         break;
3159                                                 }
3160                                                 if (!np->display_to_user()) {
3161                                                         continue;
3162                                                 }
3163                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
3164                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
3165                                                         break;
3166                                                 }
3167                                                 ++pos;
3168                                         }
3169                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
3170                                 }
3171                                 break;
3172                         case AddBottom:
3173                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
3174                                 break;
3175                 }
3176         }
3177 }
3178
3179 bool
3180 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
3181 {
3182         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
3183                 return false;
3184         }
3185
3186         // only allow to re-order top-level items
3187         TreePath src;
3188         if (TreePath::get_from_selection_data (data, src)) {
3189                 if (src.up() && src.up()) {
3190                         return false;
3191                 }
3192         }
3193
3194         // don't allow to drop as child-rows.
3195         Gtk::TreeModel::Path _dest = dest; // un const
3196         const bool is_child = _dest.up (); // explicit bool for clang
3197         if (!is_child || _dest.empty ()) {
3198                 return true;
3199         }
3200         return false;
3201 }
3202
3203 void
3204 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
3205 {
3206         if (data.get_target() != "PluginPresetPtr") {
3207                 return;
3208         }
3209         if (data.get_length() != sizeof (PluginPresetPtr)) {
3210                 return;
3211         }
3212         const void *d = data.get_data();
3213         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
3214
3215         PluginManager::PluginStatusType status = PluginManager::Favorite;
3216         PluginManager& manager (PluginManager::instance());
3217
3218         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
3219         manager.save_statuses ();
3220 }
3221
3222 void
3223 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
3224 {
3225         /* call protected MixerActor:: method */
3226         vca_assign (vca);
3227 }
3228
3229 void
3230 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
3231 {
3232         /* call protected MixerActor:: method */
3233         vca_unassign (vca);
3234 }
3235
3236 void
3237 Mixer_UI::show_spill (boost::shared_ptr<Stripable> s)
3238 {
3239         boost::shared_ptr<Stripable> ss = spilled_strip.lock();
3240         if (ss != s) {
3241                 spilled_strip = s;
3242                 show_spill_change (s); /* EMIT SIGNAL */
3243                 if (s) {
3244                         _group_tabs->hide ();
3245                 } else {
3246                         _group_tabs->show ();
3247                 }
3248                 redisplay_track_list ();
3249         }
3250 }
3251
3252 bool
3253 Mixer_UI::showing_spill_for (boost::shared_ptr<Stripable> s) const
3254 {
3255         return s == spilled_strip.lock();
3256 }
3257
3258 void
3259 Mixer_UI::register_actions ()
3260 {
3261         Glib::RefPtr<ActionGroup> group = ActionManager::create_action_group (bindings, X_("Mixer"));
3262
3263         ActionManager::register_action (group, "solo", _("Toggle Solo on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::solo_action));
3264         ActionManager::register_action (group, "mute", _("Toggle Mute on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::mute_action));
3265         ActionManager::register_action (group, "recenable", _("Toggle Rec-enable on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::rec_enable_action));
3266         ActionManager::register_action (group, "increment-gain", _("Decrease Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_up_action));
3267         ActionManager::register_action (group, "decrement-gain", _("Increase Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_down_action));
3268         ActionManager::register_action (group, "unity-gain", _("Set Gain to 0dB on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::unity_gain_action));
3269
3270
3271         ActionManager::register_action (group, "copy-processors", _("Copy Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::copy_processors));
3272         ActionManager::register_action (group, "cut-processors", _("Cut Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::cut_processors));
3273         ActionManager::register_action (group, "paste-processors", _("Paste Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::paste_processors));
3274         ActionManager::register_action (group, "delete-processors", _("Delete Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::delete_processors));
3275         ActionManager::register_action (group, "select-all-processors", _("Select All (visible) Processors"), sigc::mem_fun (*this, &Mixer_UI::select_all_processors));
3276         ActionManager::register_action (group, "toggle-processors", _("Toggle Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::toggle_processors));
3277         ActionManager::register_action (group, "ab-plugins", _("Toggle Selected Plugins"), sigc::mem_fun (*this, &Mixer_UI::ab_plugins));
3278         ActionManager::register_action (group, "select-none", _("Deselect all strips and processors"), sigc::mem_fun (*this, &Mixer_UI::select_none));
3279
3280         ActionManager::register_action (group, "select-next-stripable", _("Select Next Mixer Strip"), sigc::mem_fun (*this, &Mixer_UI::select_next_strip));
3281         ActionManager::register_action (group, "select-prev-stripable", _("Scroll Previous Mixer Strip"), sigc::mem_fun (*this, &Mixer_UI::select_prev_strip));
3282
3283         ActionManager::register_action (group, "scroll-left", _("Scroll Mixer Window to the left"), sigc::mem_fun (*this, &Mixer_UI::scroll_left));
3284         ActionManager::register_action (group, "scroll-right", _("Scroll Mixer Window to the right"), sigc::mem_fun (*this, &Mixer_UI::scroll_right));
3285
3286         ActionManager::register_action (group, "toggle-midi-input-active", _("Toggle MIDI Input Active for Mixer-Selected Tracks/Busses"),
3287                                    sigc::bind (sigc::mem_fun (*this, &Mixer_UI::toggle_midi_input_active), false));
3288
3289         ActionManager::register_toggle_action (group, X_("ToggleMixerList"), _("Mixer: Show Mixer List"), sigc::mem_fun (*this, &Mixer_UI::toggle_mixer_list));
3290
3291         ActionManager::register_toggle_action (group, X_("ToggleVCAPane"), _("Mixer: Show VCAs"), sigc::mem_fun (*this, &Mixer_UI::toggle_vcas));
3292
3293 #ifdef MIXBUS
3294         ActionManager::register_toggle_action (group, X_("ToggleMixbusPane"), _("Mixer: Show Mixbusses"), sigc::mem_fun (*this, &Mixer_UI::toggle_mixbuses));
3295 #endif
3296
3297         ActionManager::register_toggle_action (group, X_("ToggleMonitorSection"), _("Mixer: Show Monitor Section"), sigc::mem_fun (*this, &Mixer_UI::toggle_monitor_section));
3298 }
3299
3300 void
3301 Mixer_UI::load_bindings ()
3302 {
3303         bindings = Bindings::get_bindings (X_("Mixer"));
3304 }
3305
3306 template<class T> void
3307 Mixer_UI::control_action (boost::shared_ptr<T> (Stripable::*get_control)() const)
3308 {
3309         boost::shared_ptr<ControlList> cl (new ControlList);
3310         boost::shared_ptr<AutomationControl> ac;
3311         bool val = false;
3312         bool have_val = false;
3313
3314         set_axis_targets_for_operation ();
3315
3316         BOOST_FOREACH(AxisView* r, _axis_targets) {
3317                 boost::shared_ptr<Stripable> s = r->stripable();
3318                 if (s) {
3319                         ac = (s.get()->*get_control)();
3320                         if (ac) {
3321                                 cl->push_back (ac);
3322                                 if (!have_val) {
3323                                         val = !ac->get_value();
3324                                         have_val = true;
3325                                 }
3326                         }
3327                 }
3328         }
3329
3330         _session->set_controls (cl,  val, Controllable::UseGroup);
3331 }
3332
3333 void
3334 Mixer_UI::solo_action ()
3335 {
3336         control_action (&Stripable::solo_control);
3337 }
3338
3339 void
3340 Mixer_UI::mute_action ()
3341 {
3342         control_action (&Stripable::mute_control);
3343 }
3344
3345 void
3346 Mixer_UI::rec_enable_action ()
3347 {
3348         control_action (&Stripable::rec_enable_control);
3349 }
3350
3351 AutomationControlSet
3352 Mixer_UI::selected_gaincontrols ()
3353 {
3354         set_axis_targets_for_operation ();
3355         AutomationControlSet rv;
3356         BOOST_FOREACH(AxisView* r, _axis_targets) {
3357                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3358                 if (ms) {
3359                         boost::shared_ptr<GainControl> ac (ms->route()->gain_control());
3360                         ControlList cl (ac->grouped_controls());
3361                         for (ControlList::const_iterator c = cl.begin(); c != cl.end (); ++c) {
3362                                 rv.insert (*c);
3363                         }
3364                         rv.insert (ac);
3365                 }
3366         }
3367         return rv;
3368 }
3369
3370 void
3371 Mixer_UI::step_gain_up_action ()
3372 {
3373         AutomationControlSet acs = selected_gaincontrols ();
3374         for (AutomationControlSet::const_iterator i = acs.begin(); i != acs.end (); ++i) {
3375                 boost::shared_ptr<GainControl> ac = boost::dynamic_pointer_cast<GainControl> (*i);
3376                 assert (ac);
3377                 ac->set_value (dB_to_coefficient (accurate_coefficient_to_dB (ac->get_value()) + 0.1), Controllable::NoGroup);
3378         }
3379 }
3380
3381 void
3382 Mixer_UI::step_gain_down_action ()
3383 {
3384         AutomationControlSet acs = selected_gaincontrols ();
3385         for (AutomationControlSet::const_iterator i = acs.begin(); i != acs.end (); ++i) {
3386                 boost::shared_ptr<GainControl> ac = boost::dynamic_pointer_cast<GainControl> (*i);
3387                 assert (ac);
3388                 ac->set_value (dB_to_coefficient (accurate_coefficient_to_dB (ac->get_value()) - 0.1), Controllable::NoGroup);
3389         }
3390 }
3391
3392 void
3393 Mixer_UI::unity_gain_action ()
3394 {
3395         set_axis_targets_for_operation ();
3396
3397         BOOST_FOREACH(AxisView* r, _axis_targets) {
3398                 boost::shared_ptr<Stripable> s = r->stripable();
3399                 if (s) {
3400                         boost::shared_ptr<AutomationControl> ac = s->gain_control();
3401                         if (ac) {
3402                                 ac->set_value (1.0, Controllable::UseGroup);
3403                         }
3404                 }
3405         }
3406 }
3407
3408 void
3409 Mixer_UI::copy_processors ()
3410 {
3411         set_axis_targets_for_operation ();
3412
3413         BOOST_FOREACH(AxisView* r, _axis_targets) {
3414                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3415                 if (ms) {
3416                         ms->copy_processors ();
3417                 }
3418         }
3419 }
3420 void
3421 Mixer_UI::cut_processors ()
3422 {
3423         set_axis_targets_for_operation ();
3424
3425         BOOST_FOREACH(AxisView* r, _axis_targets) {
3426                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3427                 if (ms) {
3428                         ms->cut_processors ();
3429                 }
3430         }
3431 }
3432 void
3433 Mixer_UI::paste_processors ()
3434 {
3435         set_axis_targets_for_operation ();
3436
3437         BOOST_FOREACH(AxisView* r, _axis_targets) {
3438                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3439                 if (ms) {
3440                         ms->paste_processors ();
3441                 }
3442         }
3443 }
3444 void
3445 Mixer_UI::select_all_processors ()
3446 {
3447         set_axis_targets_for_operation ();
3448
3449         BOOST_FOREACH(AxisView* r, _axis_targets) {
3450                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3451                 if (ms) {
3452                         ms->select_all_processors ();
3453                 }
3454         }
3455 }
3456 void
3457 Mixer_UI::toggle_processors ()
3458 {
3459         set_axis_targets_for_operation ();
3460
3461         BOOST_FOREACH(AxisView* r, _axis_targets) {
3462                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3463                 if (ms) {
3464                         ms->toggle_processors ();
3465                 }
3466         }
3467 }
3468 void
3469 Mixer_UI::ab_plugins ()
3470 {
3471         set_axis_targets_for_operation ();
3472
3473         BOOST_FOREACH(AxisView* r, _axis_targets) {
3474                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3475                 if (ms) {
3476                         ms->ab_plugins ();
3477                 }
3478         }
3479 }
3480
3481 void
3482 Mixer_UI::vca_assign (boost::shared_ptr<VCA> vca)
3483 {
3484         set_axis_targets_for_operation ();
3485         BOOST_FOREACH(AxisView* r, _axis_targets) {
3486                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3487                 if (ms) {
3488                         ms->vca_assign (vca);
3489                 }
3490         }
3491 }
3492
3493 void
3494 Mixer_UI::vca_unassign (boost::shared_ptr<VCA> vca)
3495 {
3496         set_axis_targets_for_operation ();
3497         BOOST_FOREACH(AxisView* r, _axis_targets) {
3498                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3499                 if (ms) {
3500                         ms->vca_unassign (vca);
3501                 }
3502         }
3503 }