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