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