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 (_session->master_out() && (_session->master_out()->presentation_info().order() == n)) {
 769                                 ++n;
 770                         }
 771                         if (sr->old_display_order != n) {
 772                                 change = true;
 773                                 break;
 774                         }
 775                 }
 776                 if (change) {
 777                         n = 0;
 778                         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 779                                 if (_session->master_out() && (_session->master_out()->presentation_info().order() == n)) {
 780                                         ++n;
 781                                 }
 782                                 if (sr->stripable->presentation_info().order() != n) {
 783                                         sr->stripable->set_presentation_order (n);
 784                                 }
 785                         }
 786                 }
 787         }
 788
 789         if (change) {
 790                 DEBUG_TRACE (DEBUG::OrderKeys, "... notify PI change from mixer GUI\n");
 791                 _session->set_dirty();
 792         }
 793 }
 794
 795 void
 796 Mixer_UI::sync_treeview_from_presentation_info (PropertyChange const & what_changed)
 797 {
 798         if (!_session || _session->deletion_in_progress()) {
 799                 return;
 800         }
 801
 802         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from presentation info.\n");
 803
 804         /* we could get here after either a change in the Mixer or Editor sort
 805          * order, but either way, the mixer order keys reflect the intended
 806          * order for the GUI, so reorder the treeview model to match it.
 807          */
 808
 809         vector<int> neworder;
 810         TreeModel::Children rows = track_model->children();
 811         uint32_t old_order = 0;
 812         bool changed = false;
 813
 814         if (rows.empty()) {
 815                 return;
 816         }
 817
 818         OrderingKeys sorted;
 819         const size_t cmp_max = rows.size ();
 820
 821         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 822                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 823                 sorted.push_back (OrderKeys (old_order, stripable, cmp_max));
 824         }
 825
 826         SortByNewDisplayOrder cmp;
 827
 828         sort (sorted.begin(), sorted.end(), cmp);
 829         neworder.assign (sorted.size(), 0);
 830
 831         uint32_t n = 0;
 832
 833         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 834
 835                 neworder[n] = sr->old_display_order;
 836
 837                 if (sr->old_display_order != n) {
 838                         changed = true;
 839                 }
 840         }
 841
 842         if (changed) {
 843                 Unwinder<bool> uw (ignore_reorder, true);
 844                 track_model->reorder (neworder);
 845         }
 846
 847         if (what_changed.contains (Properties::selected)) {
 848
 849                 PresentationInfo::ChangeSuspender cs;
 850
 851                 for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 852                         boost::shared_ptr<Stripable> stripable = (*i)->stripable();
 853                         if (stripable && stripable->presentation_info().selected()) {
 854                                 _selection.add (*i);
 855                         } else {
 856                                 _selection.remove (*i);
 857                         }
 858                 }
 859
 860                 if (!_selection.axes.empty() && !PublicEditor::instance().track_selection_change_without_scroll ()) {
 861                         move_stripable_into_view ((*_selection.axes.begin())->stripable());
 862                 }
 863         }
 864
 865         redisplay_track_list ();
 866 }
 867
 868
 869 MixerStrip*
 870 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r) const
 871 {
 872         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 873                 if ((*i)->route() == r) {
 874                         return (*i);
 875                 }
 876         }
 877
 878         return 0;
 879 }
 880
 881 MixerStrip*
 882 Mixer_UI::strip_by_stripable (boost::shared_ptr<Stripable> s) const
 883 {
 884         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 885                 if ((*i)->stripable() == s) {
 886                         return (*i);
 887                 }
 888         }
 889
 890         return 0;
 891 }
 892
 893 AxisView*
 894 Mixer_UI::axis_by_stripable (boost::shared_ptr<Stripable> s) const
 895 {
 896         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 897                 if ((*i)->stripable() == s) {
 898                         return (*i);
 899                 }
 900         }
 901
 902         return 0;
 903 }
 904
 905 bool
 906 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 907 {
 908         if (ev->button == 1) {
 909                 if (_selection.selected (strip)) {
 910                         /* primary-click: toggle selection state of strip */
 911                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 912                                 _selection.remove (strip);
 913                         } else if (_selection.axes.size() > 1) {
 914                                 /* de-select others */
 915                                 _selection.set (strip);
 916                         }
 917                 } else {
 918                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 919                                 _selection.add (strip);
 920                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 921
 922                                 /* extend selection */
 923
 924                                 vector<MixerStrip*> tmp;
 925                                 bool accumulate = false;
 926                                 bool found_another = false;
 927
 928                                 tmp.push_back (strip);
 929
 930                                 OrderingKeys sorted;
 931                                 const size_t cmp_max = strips.size ();
 932                                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 933                                         sorted.push_back (OrderKeys (-1, (*i)->stripable(), cmp_max));
 934                                 }
 935                                 SortByNewDisplayOrder cmp;
 936                                 sort (sorted.begin(), sorted.end(), cmp);
 937
 938                                 for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr) {
 939                                         MixerStrip* ms = strip_by_stripable (sr->stripable);
 940                                         assert (ms);
 941
 942                                         if (ms == strip) {
 943                                                 /* hit clicked strip, start accumulating till we hit the first
 944                                                    selected strip
 945                                                 */
 946                                                 if (accumulate) {
 947                                                         /* done */
 948                                                         break;
 949                                                 } else {
 950                                                         accumulate = true;
 951                                                 }
 952                                         } else if (_selection.selected (ms)) {
 953                                                 /* hit selected strip. if currently accumulating others,
 954                                                    we're done. if not accumulating others, start doing so.
 955                                                 */
 956                                                 found_another = true;
 957                                                 if (accumulate) {
 958                                                         /* done */
 959                                                         break;
 960                                                 } else {
 961                                                         accumulate = true;
 962                                                 }
 963                                         } else {
 964                                                 if (accumulate) {
 965                                                         tmp.push_back (ms);
 966                                                 }
 967                                         }
 968                                 }
 969
 970                                 if (found_another) {
 971                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 972                                                 _selection.add (*i);
 973                                         }
 974                                 } else
 975                                         _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
 976                         } else {
 977                                 _selection.set (strip);
 978                         }
 979                 }
 980         }
 981
 982         return true;
 983 }
 984
 985 void
 986 Mixer_UI::set_session (Session* sess)
 987 {
 988         SessionHandlePtr::set_session (sess);
 989
 990         if (_plugin_selector) {
 991                 _plugin_selector->set_session (_session);
 992         }
 993
 994         _group_tabs->set_session (sess);
 995
 996         if (_monitor_section) {
 997                 _monitor_section->set_session (_session);
 998         }
 999
1000         if (!_session) {
1001                 return;
1002         }
1003
1004         refill_favorite_plugins();
1005
1006         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1007         set_state (*node, 0);
1008
1009         update_title ();
1010
1011         initial_track_display ();
1012
1013         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_routes, this, _1), gui_context());
1014         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
1015         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
1016         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
1017         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
1018         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
1019         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
1020
1021         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_masters, this, _1), gui_context());
1022
1023         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
1024
1025         route_groups_changed ();
1026
1027         if (_visible) {
1028                 show_window();
1029         }
1030         start_updating ();
1031 }
1032
1033 void
1034 Mixer_UI::session_going_away ()
1035 {
1036         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
1037
1038         _in_group_rebuild_or_clear = true;
1039         group_model->clear ();
1040         _in_group_rebuild_or_clear = false;
1041
1042         _selection.clear ();
1043         track_model->clear ();
1044
1045         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1046                 delete (*i);
1047         }
1048
1049         if (_monitor_section) {
1050                 _monitor_section->tearoff().hide_visible ();
1051         }
1052
1053         monitor_section_detached ();
1054
1055         strips.clear ();
1056
1057         stop_updating ();
1058
1059         SessionHandlePtr::session_going_away ();
1060
1061         _session = 0;
1062         update_title ();
1063 }
1064
1065 void
1066 Mixer_UI::track_visibility_changed (std::string const & path)
1067 {
1068         if (_session && _session->deletion_in_progress()) {
1069                 return;
1070         }
1071
1072         TreeIter iter;
1073
1074         if ((iter = track_model->get_iter (path))) {
1075
1076                 AxisView* av = (*iter)[stripable_columns.strip];
1077                 bool visible = (*iter)[stripable_columns.visible];
1078
1079                 if (av->set_marked_for_display (!visible)) {
1080                         update_track_visibility ();
1081                 }
1082         }
1083 }
1084
1085 void
1086 Mixer_UI::update_track_visibility ()
1087 {
1088         TreeModel::Children rows = track_model->children();
1089         TreeModel::Children::iterator i;
1090
1091         {
1092                 Unwinder<bool> uw (no_track_list_redisplay, true);
1093
1094                 for (i = rows.begin(); i != rows.end(); ++i) {
1095                         AxisView* av = (*i)[stripable_columns.strip];
1096                         (*i)[stripable_columns.visible] = av->marked_for_display ();
1097                 }
1098
1099                 /* force presentation catch up with visibility changes
1100                  */
1101
1102                 sync_presentation_info_from_treeview ();
1103         }
1104
1105         redisplay_track_list ();
1106 }
1107
1108 void
1109 Mixer_UI::show_strip (MixerStrip* ms)
1110 {
1111         TreeModel::Children rows = track_model->children();
1112         TreeModel::Children::iterator i;
1113
1114         for (i = rows.begin(); i != rows.end(); ++i) {
1115
1116                 AxisView* av = (*i)[stripable_columns.strip];
1117                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1118                 if (strip == ms) {
1119                         (*i)[stripable_columns.visible] = true;
1120                         av->set_marked_for_display (true);
1121                         update_track_visibility ();
1122                         break;
1123                 }
1124         }
1125 }
1126
1127 void
1128 Mixer_UI::hide_strip (MixerStrip* ms)
1129 {
1130         TreeModel::Children rows = track_model->children();
1131         TreeModel::Children::iterator i;
1132
1133         for (i = rows.begin(); i != rows.end(); ++i) {
1134
1135                 AxisView* av = (*i)[stripable_columns.strip];
1136                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1137                 if (strip == ms) {
1138                         (*i)[stripable_columns.visible] = false;
1139                         av->set_marked_for_display (false);
1140                         update_track_visibility ();
1141                         break;
1142                 }
1143         }
1144 }
1145
1146 gint
1147 Mixer_UI::start_updating ()
1148 {
1149     fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
1150     return 0;
1151 }
1152
1153 gint
1154 Mixer_UI::stop_updating ()
1155 {
1156     fast_screen_update_connection.disconnect();
1157     return 0;
1158 }
1159
1160 void
1161 Mixer_UI::fast_update_strips ()
1162 {
1163         if (_content.is_mapped () && _session) {
1164                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1165                         (*i)->fast_update ();
1166                 }
1167         }
1168 }
1169
1170 void
1171 Mixer_UI::set_all_strips_visibility (bool yn)
1172 {
1173         TreeModel::Children rows = track_model->children();
1174         TreeModel::Children::iterator i;
1175
1176         {
1177                 Unwinder<bool> uw (no_track_list_redisplay, true);
1178
1179                 for (i = rows.begin(); i != rows.end(); ++i) {
1180
1181                         AxisView* av = (*i)[stripable_columns.strip];
1182                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1183
1184                         if (!strip) {
1185                                 continue;
1186                         }
1187
1188                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1189                                 continue;
1190                         }
1191
1192                         (*i)[stripable_columns.visible] = yn;
1193                 }
1194         }
1195
1196         redisplay_track_list ();
1197 }
1198
1199
1200 void
1201 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
1202 {
1203         TreeModel::Children rows = track_model->children();
1204         TreeModel::Children::iterator i;
1205
1206         {
1207                 Unwinder<bool> uw (no_track_list_redisplay, true);
1208
1209                 for (i = rows.begin(); i != rows.end(); ++i) {
1210
1211                         AxisView* av = (*i)[stripable_columns.strip];
1212                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1213
1214                         if (!strip) {
1215                                 continue;
1216                         }
1217
1218                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1219                                 continue;
1220                         }
1221
1222                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
1223                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
1224
1225                         switch (tracks) {
1226                         case 0:
1227                                 (*i)[stripable_columns.visible] = yn;
1228                                 break;
1229
1230                         case 1:
1231                                 if (at) { /* track */
1232                                         (*i)[stripable_columns.visible] = yn;
1233                                 }
1234                                 break;
1235
1236                         case 2:
1237                                 if (!at && !mt) { /* bus */
1238                                         (*i)[stripable_columns.visible] = yn;
1239                                 }
1240                                 break;
1241
1242                         case 3:
1243                                 if (mt) { /* midi-track */
1244                                         (*i)[stripable_columns.visible] = yn;
1245                                 }
1246                                 break;
1247                         }
1248                 }
1249         }
1250
1251         redisplay_track_list ();
1252 }
1253
1254 void
1255 Mixer_UI::hide_all_routes ()
1256 {
1257         set_all_strips_visibility (false);
1258 }
1259
1260 void
1261 Mixer_UI::show_all_routes ()
1262 {
1263         set_all_strips_visibility (true);
1264 }
1265
1266 void
1267 Mixer_UI::show_all_audiobus ()
1268 {
1269         set_all_audio_midi_visibility (2, true);
1270 }
1271 void
1272 Mixer_UI::hide_all_audiobus ()
1273 {
1274         set_all_audio_midi_visibility (2, false);
1275 }
1276
1277 void
1278 Mixer_UI::show_all_audiotracks()
1279 {
1280         set_all_audio_midi_visibility (1, true);
1281 }
1282 void
1283 Mixer_UI::hide_all_audiotracks ()
1284 {
1285         set_all_audio_midi_visibility (1, false);
1286 }
1287
1288 void
1289 Mixer_UI::show_all_miditracks()
1290 {
1291         set_all_audio_midi_visibility (3, true);
1292 }
1293 void
1294 Mixer_UI::hide_all_miditracks ()
1295 {
1296         set_all_audio_midi_visibility (3, false);
1297 }
1298
1299 void
1300 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1301 {
1302         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1303         sync_presentation_info_from_treeview ();
1304 }
1305
1306 void
1307 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1308 {
1309         /* this happens as the second step of a DnD within the treeview as well
1310            as when a row/route is actually deleted.
1311
1312            if it was a deletion then we have to force a redisplay because
1313            order keys may not have changed.
1314         */
1315
1316         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1317         sync_presentation_info_from_treeview ();
1318
1319         if (_route_deletion_in_progress) {
1320                 redisplay_track_list ();
1321         }
1322 }
1323
1324 void
1325 Mixer_UI::spill_redisplay (boost::shared_ptr<VCA> vca)
1326 {
1327         TreeModel::Children rows = track_model->children();
1328         std::list<boost::shared_ptr<VCA> > vcas;
1329         vcas.push_back (vca);
1330
1331         for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
1332                 AxisView* av = (*i)[stripable_columns.strip];
1333                 VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
1334                 if (vms && vms->vca()->slaved_to (vca)) {
1335                         vcas.push_back (vms->vca());
1336                 }
1337         }
1338
1339         for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
1340
1341                 AxisView* av = (*i)[stripable_columns.strip];
1342                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1343                 bool const visible = (*i)[stripable_columns.visible];
1344
1345                 if (!strip) {
1346                         /* we're in the middle of changing a row, don't worry */
1347                         continue;
1348                 }
1349
1350                 if (!strip->route()) {
1351                         /* non-route element */
1352                         continue;
1353                 }
1354
1355                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1356                         continue;
1357                 }
1358
1359                 bool slaved = false;
1360                 for (std::list<boost::shared_ptr<VCA> >::const_iterator m = vcas.begin(); m != vcas.end(); ++m) {
1361                         if (strip->route()->slaved_to (*m)) {
1362                                 slaved = true;
1363                                 break;
1364                         }
1365                 }
1366
1367                 if (slaved && visible) {
1368
1369                         if (strip->packed()) {
1370                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1371                         } else {
1372                                 strip_packer.pack_start (*strip, false, false);
1373                                 strip->set_packed (true);
1374                         }
1375
1376                 } else {
1377
1378                         if (strip->packed()) {
1379                                 strip_packer.remove (*strip);
1380                                 strip->set_packed (false);
1381                         }
1382                 }
1383         }
1384 }
1385
1386 void
1387 Mixer_UI::redisplay_track_list ()
1388 {
1389         if (no_track_list_redisplay) {
1390                 return;
1391         }
1392
1393         boost::shared_ptr<Stripable> ss = spilled_strip.lock ();
1394         if (ss) {
1395                 boost::shared_ptr<VCA> sv = boost::dynamic_pointer_cast<VCA> (ss);
1396                 if (sv) {
1397                         spill_redisplay (sv);
1398                         return;
1399                 }
1400         }
1401
1402         TreeModel::Children rows = track_model->children();
1403         TreeModel::Children::iterator i;
1404         uint32_t n_masters = 0;
1405
1406         container_clear (vca_hpacker);
1407         vca_hpacker.pack_end (vca_scroller_base, true, true);
1408
1409         for (i = rows.begin(); i != rows.end(); ++i) {
1410
1411                 AxisView* s = (*i)[stripable_columns.strip];
1412                 bool const visible = (*i)[stripable_columns.visible];
1413                 boost::shared_ptr<Stripable> stripable = (*i)[stripable_columns.stripable];
1414
1415                 if (!s) {
1416                         /* we're in the middle of changing a row, don't worry */
1417                         continue;
1418                 }
1419
1420                 VCAMasterStrip* vms;
1421
1422                 if ((vms = dynamic_cast<VCAMasterStrip*> (s))) {
1423                         if (visible) {
1424                                 vca_hpacker.pack_start (*vms, false, false);
1425                                 vms->show ();
1426                                 n_masters++;
1427                         }
1428                         continue;
1429                 }
1430
1431                 MixerStrip* strip = dynamic_cast<MixerStrip*> (s);
1432
1433                 if (!strip) {
1434                         continue;
1435                 }
1436
1437                 if (visible) {
1438
1439                         if (strip->packed()) {
1440                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1441                         } else {
1442                                 strip_packer.pack_start (*strip, false, false);
1443                                 strip->set_packed (true);
1444                         }
1445
1446                 } else {
1447
1448                         if (stripable->is_master() || stripable->is_monitor()) {
1449                                 /* do nothing, these cannot be hidden */
1450                         } else {
1451                                 if (strip->packed()) {
1452                                         strip_packer.remove (*strip);
1453                                         strip->set_packed (false);
1454                                 }
1455                         }
1456                 }
1457         }
1458
1459         /* update visibility of VCA assign buttons */
1460
1461         if (n_masters == 0) {
1462                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::remove_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1463                 vca_vpacker.hide ();
1464         } else {
1465                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::add_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1466                 vca_vpacker.show ();
1467         }
1468
1469         _group_tabs->set_dirty ();
1470 }
1471
1472 void
1473 Mixer_UI::strip_width_changed ()
1474 {
1475         _group_tabs->set_dirty ();
1476
1477 #ifdef __APPLE__
1478         TreeModel::Children rows = track_model->children();
1479         TreeModel::Children::iterator i;
1480         long order;
1481
1482         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1483                 AxisView* av = (*i)[stripable_columns.strip];
1484                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1485
1486                 if (strip == 0) {
1487                         continue;
1488                 }
1489
1490                 bool visible = (*i)[stripable_columns.visible];
1491
1492                 if (visible) {
1493                         strip->queue_draw();
1494                 }
1495         }
1496 #endif
1497
1498 }
1499
1500 struct PresentationInfoMixerSorter
1501 {
1502         bool operator() (boost::shared_ptr<Stripable> a, boost::shared_ptr<Stripable> b) {
1503                 if (a->is_master()) {
1504                         /* master after everything else */
1505                         return false;
1506                 } else if (b->is_master()) {
1507                         /* everything else before master */
1508                         return true;
1509                 }
1510                 return a->presentation_info().order () < b->presentation_info().order ();
1511         }
1512 };
1513
1514 void
1515 Mixer_UI::initial_track_display ()
1516 {
1517         StripableList sl;
1518
1519         boost::shared_ptr<RouteList> routes = _session->get_routes();
1520
1521         for (RouteList::iterator r = routes->begin(); r != routes->end(); ++r) {
1522                 sl.push_back (*r);
1523         }
1524
1525         VCAList vcas = _session->vca_manager().vcas();
1526
1527         for (VCAList::iterator v = vcas.begin(); v != vcas.end(); ++v) {
1528                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
1529         }
1530
1531         sl.sort (PresentationInfoMixerSorter());
1532
1533         {
1534                 /* These are also used inside ::add_stripables() but we need
1535                  *  them here because we're going to clear the track_model also.
1536                  */
1537                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1538                 Unwinder<bool> uw2 (ignore_reorder, true);
1539
1540                 track_model->clear ();
1541                 add_stripables (sl);
1542         }
1543
1544         sync_treeview_from_presentation_info (Properties::order);
1545 }
1546
1547 void
1548 Mixer_UI::show_track_list_menu ()
1549 {
1550         if (track_menu == 0) {
1551                 build_track_menu ();
1552         }
1553
1554         track_menu->popup (1, gtk_get_current_event_time());
1555 }
1556
1557 bool
1558 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1559 {
1560         if (Keyboard::is_context_menu_event (ev)) {
1561                 show_track_list_menu ();
1562                 return true;
1563         }
1564         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 1)) {
1565                 TreeModel::Path path;
1566                 TreeViewColumn* column;
1567                 int cellx, celly;
1568                 if (track_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1569                         TreeIter iter = track_model->get_iter (path);
1570                         if ((*iter)[stripable_columns.visible]) {
1571                                 boost::shared_ptr<ARDOUR::Stripable> s = (*iter)[stripable_columns.stripable];
1572                                 move_stripable_into_view (s);
1573                         }
1574                 }
1575         }
1576
1577         return false;
1578 }
1579
1580 void
1581 Mixer_UI::move_stripable_into_view (boost::shared_ptr<ARDOUR::Stripable> s)
1582 {
1583         if (!scroller.get_hscrollbar()) {
1584                 return;
1585         }
1586         if (s->presentation_info().special () || s->presentation_info().flag_match (PresentationInfo::VCA)) {
1587                 return;
1588         }
1589 #ifdef MIXBUS
1590         if (s->mixbus ()) {
1591                 return;
1592         }
1593 #endif
1594         bool found = false;
1595         int x0 = 0;
1596         Gtk::Allocation alloc;
1597         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
1598                 if ((*i)->route() == s) {
1599                         int y;
1600                         found = true;
1601                         (*i)->translate_coordinates (strip_packer, 0, 0, x0, y);
1602                         alloc = (*i)->get_allocation ();
1603                         break;
1604                 }
1605         }
1606         if (!found) {
1607                 return;
1608         }
1609
1610         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1611
1612         if (x0 < adj->get_value()) {
1613                 adj->set_value (max (adj->get_lower(), min (adj->get_upper(), (double) x0)));
1614         } else if (x0 + alloc.get_width() >= adj->get_value() + adj->get_page_size()) {
1615                 int x1 = x0 + alloc.get_width() - adj->get_page_size();
1616                 adj->set_value (max (adj->get_lower(), min (adj->get_upper(), (double) x1)));
1617         }
1618 }
1619
1620 void
1621 Mixer_UI::build_track_menu ()
1622 {
1623         using namespace Menu_Helpers;
1624         using namespace Gtk;
1625
1626         track_menu = new Menu;
1627         track_menu->set_name ("ArdourContextMenu");
1628         MenuList& items = track_menu->items();
1629
1630         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1631         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1632         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1633         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1634         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1635         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1636         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1637         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1638
1639 }
1640
1641 void
1642 Mixer_UI::stripable_property_changed (const PropertyChange& what_changed, boost::weak_ptr<Stripable> ws)
1643 {
1644         if (!what_changed.contains (ARDOUR::Properties::hidden) && !what_changed.contains (ARDOUR::Properties::name)) {
1645                 return;
1646         }
1647
1648         boost::shared_ptr<Stripable> s = ws.lock ();
1649
1650         if (!s) {
1651                 return;
1652         }
1653
1654         TreeModel::Children rows = track_model->children();
1655         TreeModel::Children::iterator i;
1656
1657         for (i = rows.begin(); i != rows.end(); ++i) {
1658                 boost::shared_ptr<Stripable> ss = (*i)[stripable_columns.stripable];
1659
1660                 if (s == ss) {
1661
1662                         if (what_changed.contains (ARDOUR::Properties::name)) {
1663                                 (*i)[stripable_columns.text] = s->name();
1664                         }
1665
1666                         if (what_changed.contains (ARDOUR::Properties::hidden)) {
1667                                 (*i)[stripable_columns.visible] = !s->presentation_info().hidden();
1668                                 redisplay_track_list ();
1669                         }
1670
1671                         return;
1672                 }
1673         }
1674
1675         error << _("track display list item for renamed strip not found!") << endmsg;
1676 }
1677
1678 bool
1679 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1680 {
1681         TreeModel::Path path;
1682         TreeViewColumn* column;
1683         int cellx;
1684         int celly;
1685
1686         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1687                 _group_tabs->get_menu(0)->popup (1, ev->time);
1688                 return true;
1689         }
1690
1691         TreeIter iter = group_model->get_iter (path);
1692         if (!iter) {
1693                 _group_tabs->get_menu(0)->popup (1, ev->time);
1694                 return true;
1695         }
1696
1697         RouteGroup* group = (*iter)[group_columns.group];
1698
1699         if (Keyboard::is_context_menu_event (ev)) {
1700                 _group_tabs->get_menu(group)->popup (1, ev->time);
1701                 return true;
1702         }
1703
1704         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1705         case 1:
1706                 if (Keyboard::is_edit_event (ev)) {
1707                         if (group) {
1708                                 // edit_route_group (group);
1709 #ifdef __APPLE__
1710                                 group_display.queue_draw();
1711 #endif
1712                                 return true;
1713                         }
1714                 }
1715                 break;
1716
1717         case 0:
1718         {
1719                 bool visible = (*iter)[group_columns.visible];
1720                 (*iter)[group_columns.visible] = !visible;
1721 #ifdef __APPLE__
1722                 group_display.queue_draw();
1723 #endif
1724                 return true;
1725         }
1726
1727         default:
1728                 break;
1729         }
1730
1731         return false;
1732  }
1733
1734 void
1735 Mixer_UI::activate_all_route_groups ()
1736 {
1737         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1738 }
1739
1740 void
1741 Mixer_UI::disable_all_route_groups ()
1742 {
1743         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1744 }
1745
1746 void
1747 Mixer_UI::route_groups_changed ()
1748 {
1749         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1750
1751         _in_group_rebuild_or_clear = true;
1752
1753         /* just rebuild the while thing */
1754
1755         group_model->clear ();
1756
1757 #if 0
1758         /* this is currently not used,
1759          * Mixer_UI::group_display_button_press() has a case for it,
1760          * and a commented edit_route_group() but that's n/a since 2011.
1761          *
1762          * This code is left as reminder that
1763          * row[group_columns.group] = 0 has special meaning.
1764          */
1765         {
1766                 TreeModel::Row row;
1767                 row = *(group_model->append());
1768                 row[group_columns.visible] = true;
1769                 row[group_columns.text] = (_("-all-"));
1770                 row[group_columns.group] = 0;
1771         }
1772 #endif
1773
1774         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1775
1776         _group_tabs->set_dirty ();
1777         _in_group_rebuild_or_clear = false;
1778 }
1779
1780 void
1781 Mixer_UI::new_route_group ()
1782 {
1783         _group_tabs->run_new_group_dialog (0, false);
1784 }
1785
1786 void
1787 Mixer_UI::remove_selected_route_group ()
1788 {
1789         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1790         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1791
1792         if (rows.empty()) {
1793                 return;
1794         }
1795
1796         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1797         TreeIter iter;
1798
1799         /* selection mode is single, so rows.begin() is it */
1800
1801         if ((iter = group_model->get_iter (*i))) {
1802
1803                 RouteGroup* rg = (*iter)[group_columns.group];
1804
1805                 if (rg) {
1806                         _session->remove_route_group (*rg);
1807                 }
1808         }
1809 }
1810
1811 void
1812 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1813 {
1814         if (in_group_row_change) {
1815                 return;
1816         }
1817
1818         /* force an update of any mixer strips that are using this group,
1819            otherwise mix group names don't change in mixer strips
1820         */
1821
1822         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1823                 if ((*i)->route_group() == group) {
1824                         (*i)->route_group_changed();
1825                 }
1826         }
1827
1828         TreeModel::iterator i;
1829         TreeModel::Children rows = group_model->children();
1830         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1831
1832         in_group_row_change = true;
1833
1834         for (i = rows.begin(); i != rows.end(); ++i) {
1835                 if ((*i)[group_columns.group] == group) {
1836                         (*i)[group_columns.visible] = !group->is_hidden ();
1837                         (*i)[group_columns.text] = group->name ();
1838                         break;
1839                 }
1840         }
1841
1842         in_group_row_change = false;
1843
1844         if (change.contains (Properties::name)) {
1845                 _group_tabs->set_dirty ();
1846         }
1847
1848         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1849                 if ((*j)->route_group() == group) {
1850                         if (group->is_hidden ()) {
1851                                 hide_strip (*j);
1852                         } else {
1853                                 show_strip (*j);
1854                         }
1855                 }
1856         }
1857 }
1858
1859 void
1860 Mixer_UI::show_mixer_list (bool yn)
1861 {
1862         if (yn) {
1863                 list_vpacker.show ();
1864         } else {
1865                 list_vpacker.hide ();
1866         }
1867
1868         _show_mixer_list = yn;
1869 }
1870
1871 void
1872 Mixer_UI::show_monitor_section (bool yn)
1873 {
1874         if (!monitor_section()) {
1875                 return;
1876         }
1877         if (monitor_section()->tearoff().torn_off()) {
1878                 return;
1879         }
1880
1881         if (yn) {
1882                 monitor_section()->tearoff().show();
1883         } else {
1884                 monitor_section()->tearoff().hide();
1885         }
1886 }
1887
1888 void
1889 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1890 {
1891         RouteGroup* group;
1892         TreeIter iter;
1893
1894         if ((iter = group_model->get_iter (path))) {
1895
1896                 if ((group = (*iter)[group_columns.group]) == 0) {
1897                         return;
1898                 }
1899
1900                 if (new_text != group->name()) {
1901                         group->set_name (new_text);
1902                 }
1903         }
1904 }
1905
1906 void
1907 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1908 {
1909         RouteGroup* group;
1910
1911         if (in_group_row_change) {
1912                 return;
1913         }
1914
1915         if ((group = (*iter)[group_columns.group]) == 0) {
1916                 return;
1917         }
1918
1919         std::string name = (*iter)[group_columns.text];
1920
1921         if (name != group->name()) {
1922                 group->set_name (name);
1923         }
1924
1925         bool hidden = !(*iter)[group_columns.visible];
1926
1927         if (hidden != group->is_hidden ()) {
1928                 group->set_hidden (hidden, this);
1929         }
1930 }
1931
1932 /** Called when a group model row is deleted, but also when the model is
1933  *  reordered by a user drag-and-drop; the latter is what we are
1934  *  interested in here.
1935  */
1936 void
1937 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1938 {
1939         if (_in_group_rebuild_or_clear) {
1940                 return;
1941         }
1942
1943         /* Re-write the session's route group list so that the new order is preserved */
1944
1945         list<RouteGroup*> new_list;
1946
1947         Gtk::TreeModel::Children children = group_model->children();
1948         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1949                 RouteGroup* g = (*i)[group_columns.group];
1950                 if (g) {
1951                         new_list.push_back (g);
1952                 }
1953         }
1954
1955         _session->reorder_route_groups (new_list);
1956 }
1957
1958
1959 void
1960 Mixer_UI::add_route_group (RouteGroup* group)
1961 {
1962         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1963         bool focus = false;
1964
1965         in_group_row_change = true;
1966
1967         TreeModel::Row row = *(group_model->append());
1968         row[group_columns.visible] = !group->is_hidden ();
1969         row[group_columns.group] = group;
1970         if (!group->name().empty()) {
1971                 row[group_columns.text] = group->name();
1972         } else {
1973                 row[group_columns.text] = _("unnamed");
1974                 focus = true;
1975         }
1976
1977         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1978
1979         if (focus) {
1980                 TreeViewColumn* col = group_display.get_column (0);
1981                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
1982                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1983         }
1984
1985         _group_tabs->set_dirty ();
1986
1987         in_group_row_change = false;
1988 }
1989
1990 bool
1991 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1992 {
1993         using namespace Menu_Helpers;
1994
1995         if (Keyboard::is_context_menu_event (ev)) {
1996                 ARDOUR_UI::instance()->add_route ();
1997                 return true;
1998         }
1999
2000         return false;
2001 }
2002
2003 void
2004 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
2005 {
2006         printf ("Mixer_UI::scroller_drag_data_received\n");
2007         if (data.get_target() != "PluginFavoritePtr") {
2008                 context->drag_finish (false, false, time);
2009                 return;
2010         }
2011
2012         const void * d = data.get_data();
2013         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
2014
2015         PluginPresetList nfos;
2016         TreeView* source;
2017         tv->get_object_drag_data (nfos, &source);
2018
2019         Route::ProcessorList pl;
2020         bool ok = false;
2021
2022         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
2023                 PluginPresetPtr ppp = (*i);
2024                 PluginInfoPtr pip = ppp->_pip;
2025                 if (!pip->is_instrument ()) {
2026                         continue;
2027                 }
2028                 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);
2029                 ok = true;
2030         }
2031
2032         context->drag_finish (ok, false, time);
2033 }
2034
2035 void
2036 Mixer_UI::set_strip_width (Width w, bool save)
2037 {
2038         _strip_width = w;
2039
2040         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2041                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
2042         }
2043 }
2044
2045
2046 struct PluginStateSorter {
2047 public:
2048         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2049                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
2050                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
2051                 if (aiter != _user.end() && biter != _user.end()) {
2052                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
2053                 }
2054                 if (aiter != _user.end()) {
2055                         return true;
2056                 }
2057                 if (biter != _user.end()) {
2058                         return false;
2059                 }
2060                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2061         }
2062
2063         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
2064 private:
2065         std::list<std::string> _user;
2066 };
2067
2068 int
2069 Mixer_UI::set_state (const XMLNode& node, int version)
2070 {
2071         XMLProperty const * prop;
2072         LocaleGuard lg;
2073
2074         Tabbable::set_state (node, version);
2075
2076         if ((prop = node.property ("narrow-strips"))) {
2077                 if (string_is_affirmative (prop->value())) {
2078                         set_strip_width (Narrow);
2079                 } else {
2080                         set_strip_width (Wide);
2081                 }
2082         }
2083
2084         if ((prop = node.property ("show-mixer"))) {
2085                 if (string_is_affirmative (prop->value())) {
2086                        _visible = true;
2087                 }
2088         }
2089
2090         if ((prop = node.property ("maximised"))) {
2091                 bool yn = string_is_affirmative (prop->value());
2092                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
2093                 assert (act);
2094                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2095                 bool fs = tact && tact->get_active();
2096                 if (yn ^ fs) {
2097                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
2098                 }
2099         }
2100
2101         if ((prop = node.property ("show-mixer-list"))) {
2102                 bool yn = string_is_affirmative (prop->value());
2103                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
2104                 assert (act);
2105                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2106
2107                 /* do it twice to force the change */
2108                 tact->set_active (!yn);
2109                 tact->set_active (yn);
2110         }
2111
2112
2113         XMLNode* plugin_order;
2114         if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
2115                 store_current_favorite_order ();
2116                 std::list<string> order;
2117                 const XMLNodeList& kids = plugin_order->children("PluginInfo");
2118                 XMLNodeConstIterator i;
2119                 for (i = kids.begin(); i != kids.end(); ++i) {
2120                         if ((prop = (*i)->property ("unique-id"))) {
2121                                 std::string unique_id = prop->value();
2122                                 order.push_back (unique_id);
2123                                 if ((prop = (*i)->property ("expanded"))) {
2124                                         favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
2125                                 }
2126                         }
2127                 }
2128                 PluginStateSorter cmp (order);
2129                 favorite_order.sort (cmp);
2130                 sync_treeview_from_favorite_order ();
2131         }
2132         return 0;
2133 }
2134
2135 XMLNode&
2136 Mixer_UI::get_state ()
2137 {
2138         XMLNode* node = new XMLNode (X_("Mixer"));
2139         char buf[128];
2140         LocaleGuard lg;
2141
2142         node->add_child_nocopy (Tabbable::get_state());
2143
2144         snprintf(buf,sizeof(buf), "%f", rhs_pane1.get_divider());
2145         node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
2146         snprintf(buf,sizeof(buf), "%f", rhs_pane2.get_divider());
2147         node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
2148         snprintf(buf,sizeof(buf), "%f", list_hpane.get_divider());
2149         node->add_property(X_("mixer-list-hpane-pos"), string(buf));
2150         snprintf(buf,sizeof(buf), "%f", inner_pane.get_divider());
2151         node->add_property(X_("mixer-inner-pane-pos"), string(buf));
2152
2153         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
2154         node->add_property ("show-mixer", _visible ? "yes" : "no");
2155         node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
2156         node->add_property ("maximised", _maximised ? "yes" : "no");
2157
2158         store_current_favorite_order ();
2159         XMLNode* plugin_order = new XMLNode ("PluginOrder");
2160         int cnt = 0;
2161         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
2162                 XMLNode* p = new XMLNode ("PluginInfo");
2163                 p->add_property ("sort", cnt);
2164                 p->add_property ("unique-id", (*i)->unique_id);
2165                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
2166                         p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
2167                 }
2168                 plugin_order->add_child_nocopy (*p);
2169         }
2170         node->add_child_nocopy (*plugin_order);
2171
2172         return *node;
2173 }
2174
2175 void
2176 Mixer_UI::scroll_left ()
2177 {
2178         if (!scroller.get_hscrollbar()) return;
2179         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2180         int sc_w = scroller.get_width();
2181         int sp_w = strip_packer.get_width();
2182         if (sp_w <= sc_w) {
2183                 return;
2184         }
2185         int lp = adj->get_value();
2186         int lm = 0;
2187         using namespace Gtk::Box_Helpers;
2188         const BoxList& strips = strip_packer.children();
2189         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2190                 lm += i->get_widget()->get_width ();
2191                 if (lm >= lp) {
2192                         lm -= i->get_widget()->get_width ();
2193                         break;
2194                 }
2195         }
2196         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2197 }
2198
2199 void
2200 Mixer_UI::scroll_right ()
2201 {
2202         if (!scroller.get_hscrollbar()) return;
2203         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2204         int sc_w = scroller.get_width();
2205         int sp_w = strip_packer.get_width();
2206         if (sp_w <= sc_w) {
2207                 return;
2208         }
2209         int lp = adj->get_value();
2210         int lm = 0;
2211         using namespace Gtk::Box_Helpers;
2212         const BoxList& strips = strip_packer.children();
2213         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2214                 lm += i->get_widget()->get_width ();
2215                 if (lm > lp + 1) {
2216                         break;
2217                 }
2218         }
2219         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2220 }
2221
2222 bool
2223 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
2224 {
2225         switch (ev->direction) {
2226         case GDK_SCROLL_LEFT:
2227                 scroll_left ();
2228                 return true;
2229         case GDK_SCROLL_UP:
2230                 if (ev->state & Keyboard::TertiaryModifier) {
2231                         scroll_left ();
2232                         return true;
2233                 }
2234                 return false;
2235
2236         case GDK_SCROLL_RIGHT:
2237                 scroll_right ();
2238                 return true;
2239
2240         case GDK_SCROLL_DOWN:
2241                 if (ev->state & Keyboard::TertiaryModifier) {
2242                         scroll_right ();
2243                         return true;
2244                 }
2245                 return false;
2246         }
2247
2248         return false;
2249 }
2250
2251
2252 void
2253 Mixer_UI::parameter_changed (string const & p)
2254 {
2255         if (p == "show-group-tabs") {
2256                 bool const s = _session->config.get_show_group_tabs ();
2257                 if (s) {
2258                         _group_tabs->show ();
2259                 } else {
2260                         _group_tabs->hide ();
2261                 }
2262         } else if (p == "default-narrow_ms") {
2263                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2264                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2265                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2266                 }
2267         } else if (p == "use-monitor-bus") {
2268                 if (_session && !_session->monitor_out()) {
2269                         monitor_section_detached ();
2270                 }
2271         }
2272 }
2273
2274 void
2275 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2276 {
2277         g->set_active (a, this);
2278 }
2279
2280 PluginSelector*
2281 Mixer_UI::plugin_selector()
2282 {
2283 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2284         if (!_plugin_selector)
2285                 _plugin_selector = new PluginSelector (PluginManager::instance());
2286 #endif
2287
2288         return _plugin_selector;
2289 }
2290
2291 void
2292 Mixer_UI::setup_track_display ()
2293 {
2294         track_model = ListStore::create (stripable_columns);
2295         track_display.set_model (track_model);
2296         track_display.append_column (_("Show"), stripable_columns.visible);
2297         track_display.append_column (_("Strips"), stripable_columns.text);
2298         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2299         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2300         track_display.get_column (0)->set_expand(false);
2301         track_display.get_column (1)->set_expand(true);
2302         track_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2303         track_display.set_name (X_("EditGroupList"));
2304         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2305         track_display.set_reorderable (true);
2306         track_display.set_headers_visible (true);
2307         track_display.set_can_focus(false);
2308
2309         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2310         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2311
2312         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (0));
2313         track_list_visible_cell->property_activatable() = true;
2314         track_list_visible_cell->property_radio() = false;
2315         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2316
2317         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2318
2319         track_display_scroller.add (track_display);
2320         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2321
2322         VBox* v = manage (new VBox);
2323         v->show ();
2324         v->pack_start (track_display_scroller, true, true);
2325
2326         Button* b = manage (new Button);
2327         b->show ();
2328         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
2329         w->show ();
2330         b->add (*w);
2331
2332         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
2333
2334         v->pack_start (*b, false, false);
2335
2336         track_display_frame.set_name("BaseFrame");
2337         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2338         track_display_frame.add (*v);
2339
2340         track_display_scroller.show();
2341         track_display_frame.show();
2342         track_display.show();
2343 }
2344
2345 void
2346 Mixer_UI::new_track_or_bus ()
2347 {
2348         ARDOUR_UI::instance()->add_route ();
2349 }
2350
2351 void
2352 Mixer_UI::update_title ()
2353 {
2354         if (!own_window()) {
2355                 return;
2356         }
2357
2358         if (_session) {
2359                 string n;
2360
2361                 if (_session->snap_name() != _session->name()) {
2362                         n = _session->snap_name ();
2363                 } else {
2364                         n = _session->name ();
2365                 }
2366
2367                 if (_session->dirty ()) {
2368                         n = "*" + n;
2369                 }
2370
2371                 WindowTitle title (n);
2372                 title += S_("Window|Mixer");
2373                 title += Glib::get_application_name ();
2374                 own_window()->set_title (title.get_string());
2375
2376         } else {
2377
2378                 WindowTitle title (S_("Window|Mixer"));
2379                 title += Glib::get_application_name ();
2380                 own_window()->set_title (title.get_string());
2381         }
2382 }
2383
2384 MixerStrip*
2385 Mixer_UI::strip_by_x (int x)
2386 {
2387         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2388                 int x1, x2, y;
2389
2390                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2391                 x2 = x1 + (*i)->get_width();
2392
2393                 if (x >= x1 && x <= x2) {
2394                         return (*i);
2395                 }
2396         }
2397
2398         return 0;
2399 }
2400
2401 void
2402 Mixer_UI::set_axis_targets_for_operation ()
2403 {
2404         _axis_targets.clear ();
2405
2406         if (!_selection.empty()) {
2407                 _axis_targets = _selection.axes;
2408                 return;
2409         }
2410
2411 //  removed "implicit" selections of strips, after discussion on IRC
2412
2413 }
2414
2415 void
2416 Mixer_UI::monitor_section_going_away ()
2417 {
2418         if (_monitor_section) {
2419                 monitor_section_detached ();
2420                 out_packer.remove (_monitor_section->tearoff());
2421                 _monitor_section->set_session (0);
2422                 delete _monitor_section;
2423                 _monitor_section = 0;
2424         }
2425 }
2426
2427 void
2428 Mixer_UI::toggle_midi_input_active (bool flip_others)
2429 {
2430         boost::shared_ptr<RouteList> rl (new RouteList);
2431         bool onoff = false;
2432
2433         set_axis_targets_for_operation ();
2434
2435         for (AxisViewSelection::iterator r = _axis_targets.begin(); r != _axis_targets.end(); ++r) {
2436                 boost::shared_ptr<MidiTrack> mt = boost::dynamic_pointer_cast<MidiTrack> ((*r)->stripable());
2437
2438                 if (mt) {
2439                         rl->push_back (mt);
2440                         onoff = !mt->input_active();
2441                 }
2442         }
2443
2444         _session->set_exclusive_input_active (rl, onoff, flip_others);
2445 }
2446
2447 void
2448 Mixer_UI::maximise_mixer_space ()
2449 {
2450         if (!own_window()) {
2451                 return;
2452         }
2453
2454         if (_maximised) {
2455                 return;
2456         }
2457
2458         _window->fullscreen ();
2459         _maximised = true;
2460 }
2461
2462 void
2463 Mixer_UI::restore_mixer_space ()
2464 {
2465         if (!own_window()) {
2466                 return;
2467         }
2468
2469         if (!_maximised) {
2470                 return;
2471         }
2472
2473         own_window()->unfullscreen();
2474         _maximised = false;
2475 }
2476
2477 void
2478 Mixer_UI::monitor_section_attached ()
2479 {
2480         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2481         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2482         act->set_sensitive (true);
2483         tact->set_active ();
2484 }
2485
2486 void
2487 Mixer_UI::monitor_section_detached ()
2488 {
2489         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2490         act->set_sensitive (false);
2491 }
2492
2493 void
2494 Mixer_UI::store_current_favorite_order ()
2495 {
2496         typedef Gtk::TreeModel::Children type_children;
2497         type_children children = favorite_plugins_model->children();
2498         favorite_order.clear();
2499         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2500         {
2501                 Gtk::TreeModel::Row row = *iter;
2502                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2503                 favorite_order.push_back (ppp->_pip);
2504                 std::string name = row[favorite_plugins_columns.name];
2505                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2506         }
2507 }
2508
2509 void
2510 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2511 {
2512         Gtk::TreeModel::Row row = *iter;
2513         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2514         assert (ppp);
2515         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2516 }
2517
2518 void
2519 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2520 {
2521         PluginManager& manager (PluginManager::instance());
2522         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2523                 if (manager.get_status (*i) != PluginManager::Favorite) {
2524                         continue;
2525                 }
2526                 result.push_back (*i);
2527         }
2528 }
2529
2530 struct PluginCustomSorter {
2531 public:
2532         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2533                 PluginInfoList::const_iterator aiter = _user.begin();
2534                 PluginInfoList::const_iterator biter = _user.begin();
2535                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2536                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2537
2538                 if (aiter != _user.end() && biter != _user.end()) {
2539                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2540                 }
2541                 if (aiter != _user.end()) {
2542                         return true;
2543                 }
2544                 if (biter != _user.end()) {
2545                         return false;
2546                 }
2547                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2548         }
2549         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2550 private:
2551         PluginInfoList _user;
2552 };
2553
2554 void
2555 Mixer_UI::refill_favorite_plugins ()
2556 {
2557         PluginInfoList plugs;
2558         PluginManager& mgr (PluginManager::instance());
2559
2560 #ifdef LV2_SUPPORT
2561         refiller (plugs, mgr.lv2_plugin_info ());
2562 #endif
2563 #ifdef WINDOWS_VST_SUPPORT
2564         refiller (plugs, mgr.windows_vst_plugin_info ());
2565 #endif
2566 #ifdef LXVST_SUPPORT
2567         refiller (plugs, mgr.lxvst_plugin_info ());
2568 #endif
2569 #ifdef MACVST_SUPPORT
2570         refiller (plugs, mgr.mac_vst_plugin_info ());
2571 #endif
2572 #ifdef AUDIOUNIT_SUPPORT
2573         refiller (plugs, mgr.au_plugin_info ());
2574 #endif
2575         refiller (plugs, mgr.ladspa_plugin_info ());
2576         refiller (plugs, mgr.lua_plugin_info ());
2577
2578         store_current_favorite_order ();
2579
2580         PluginCustomSorter cmp (favorite_order);
2581         plugs.sort (cmp);
2582
2583         favorite_order = plugs;
2584
2585         sync_treeview_from_favorite_order ();
2586 }
2587
2588 void
2589 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2590 {
2591         TreeIter iter;
2592         if (!(iter = favorite_plugins_model->get_iter (path))) {
2593                 return;
2594         }
2595         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2596         if (!ppp) {
2597                 return;
2598         }
2599         PluginInfoPtr pip = ppp->_pip;
2600         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2601                 if (favorite_ui_state[pip->unique_id]) {
2602                         favorite_plugins_display.expand_row (path, true);
2603                 }
2604         }
2605 }
2606
2607 void
2608 Mixer_UI::sync_treeview_from_favorite_order ()
2609 {
2610         favorite_plugins_model->clear ();
2611         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2612                 PluginInfoPtr pip = (*i);
2613
2614                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2615                 newrow[favorite_plugins_columns.name] = (*i)->name;
2616                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2617                 if (!_session) {
2618                         continue;
2619                 }
2620
2621                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2622                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2623                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2624                         child_row[favorite_plugins_columns.name] = (*j).label;
2625                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2626                 }
2627                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2628                         if (favorite_ui_state[pip->unique_id]) {
2629                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2630                         }
2631                 }
2632         }
2633 }
2634
2635 void
2636 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2637 {
2638         using namespace Gtk::Menu_Helpers;
2639
2640         Gtk::Menu* m = manage (new Menu);
2641         MenuList& items = m->items ();
2642
2643         if (_selection.axes.empty()) {
2644                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
2645         } else {
2646                 items.push_back (MenuElem (_("Add at the top"),
2647                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
2648                 items.push_back (MenuElem (_("Add Pre-Fader"),
2649                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
2650                 items.push_back (MenuElem (_("Add Post-Fader"),
2651                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
2652                 items.push_back (MenuElem (_("Add at the end"),
2653                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
2654         }
2655
2656         items.push_back (SeparatorElem());
2657
2658         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
2659
2660         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2661         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
2662                 // we cannot currently delete AU presets
2663                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
2664                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
2665                 }
2666         }
2667
2668         m->popup (ev->button, ev->time);
2669 }
2670
2671 bool
2672 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
2673 {
2674         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
2675                 TreeModel::Path path;
2676                 TreeViewColumn* column;
2677                 int cellx, celly;
2678                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
2679                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2680                         if (selection) {
2681                                 selection->unselect_all();
2682                                 selection->select(path);
2683                         }
2684                 }
2685                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
2686                 if (ppp) {
2687                         popup_note_context_menu (ev);
2688                 }
2689         }
2690         return false;
2691 }
2692
2693
2694 PluginPresetPtr
2695 Mixer_UI::selected_plugin ()
2696 {
2697         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2698         if (!selection) {
2699                 return PluginPresetPtr();
2700         }
2701         Gtk::TreeModel::iterator iter = selection->get_selected();
2702         if (!iter) {
2703                 return PluginPresetPtr();
2704         }
2705         return (*iter)[favorite_plugins_columns.plugin];
2706 }
2707
2708 void
2709 Mixer_UI::add_selected_processor (ProcessorPosition pos)
2710 {
2711         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2712         if (ppp) {
2713                 add_favorite_processor (ppp, pos);
2714         }
2715 }
2716
2717 void
2718 Mixer_UI::delete_selected_preset ()
2719 {
2720         if (!_session) {
2721                 return;
2722         }
2723         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2724         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
2725                 return;
2726         }
2727         PluginPtr plugin = ppp->_pip->load (*_session);
2728         plugin->get_presets();
2729         plugin->remove_preset (ppp->_preset.label);
2730 }
2731
2732 void
2733 Mixer_UI::remove_selected_from_favorites ()
2734 {
2735         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2736         if (!ppp) {
2737                 return;
2738         }
2739         PluginManager::PluginStatusType status = PluginManager::Normal;
2740         PluginManager& manager (PluginManager::instance());
2741
2742         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2743         manager.save_statuses ();
2744 }
2745
2746 void
2747 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
2748 {
2749         TreeIter iter;
2750         if (!(iter = favorite_plugins_model->get_iter (path))) {
2751                 return;
2752         }
2753         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2754         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
2755 }
2756
2757 void
2758 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
2759 {
2760         if (!_session || _selection.axes.empty()) {
2761                 return;
2762         }
2763
2764         PluginInfoPtr pip = ppp->_pip;
2765         for (AxisViewSelection::iterator i = _selection.axes.begin(); i != _selection.axes.end(); ++i) {
2766                 boost::shared_ptr<ARDOUR::Route> rt = boost::dynamic_pointer_cast<ARDOUR::Route> ((*i)->stripable());
2767
2768                 if (!rt) {
2769                         continue;
2770                 }
2771
2772                 PluginPtr p = pip->load (*_session);
2773
2774                 if (!p) {
2775                         continue;
2776                 }
2777
2778                 if (ppp->_preset.valid) {
2779                         p->load_preset (ppp->_preset);
2780                 }
2781
2782                 Route::ProcessorStreams err;
2783                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2784
2785                 switch (pos) {
2786                         case AddTop:
2787                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
2788                                 break;
2789                         case AddPreFader:
2790                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
2791                                 break;
2792                         case AddPostFader:
2793                                 {
2794                                         int idx = 0;
2795                                         int pos = 0;
2796                                         for (;;++idx) {
2797                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
2798                                                 if (!np) {
2799                                                         break;
2800                                                 }
2801                                                 if (!np->display_to_user()) {
2802                                                         continue;
2803                                                 }
2804                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
2805                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
2806                                                         break;
2807                                                 }
2808                                                 ++pos;
2809                                         }
2810                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
2811                                 }
2812                                 break;
2813                         case AddBottom:
2814                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
2815                                 break;
2816                 }
2817         }
2818 }
2819
2820 bool
2821 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
2822 {
2823         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
2824                 return false;
2825         }
2826
2827         // only allow to re-order top-level items
2828         TreePath src;
2829         if (TreePath::get_from_selection_data (data, src)) {
2830                 if (src.up() && src.up()) {
2831                         return false;
2832                 }
2833         }
2834
2835         // don't allow to drop as child-rows.
2836         Gtk::TreeModel::Path _dest = dest; // un const
2837         const bool is_child = _dest.up (); // explicit bool for clang
2838         if (!is_child || _dest.empty ()) {
2839                 return true;
2840         }
2841         return false;
2842 }
2843
2844 void
2845 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
2846 {
2847         if (data.get_target() != "PluginPresetPtr") {
2848                 return;
2849         }
2850         if (data.get_length() != sizeof (PluginPresetPtr)) {
2851                 return;
2852         }
2853         const void *d = data.get_data();
2854         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
2855
2856         PluginManager::PluginStatusType status = PluginManager::Favorite;
2857         PluginManager& manager (PluginManager::instance());
2858
2859         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2860         manager.save_statuses ();
2861 }
2862
2863 void
2864 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
2865 {
2866         /* call protected MixerActor:: method */
2867         vca_assign (vca);
2868 }
2869
2870 void
2871 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
2872 {
2873         /* call protected MixerActor:: method */
2874         vca_unassign (vca);
2875 }
2876
2877 void
2878 Mixer_UI::show_spill (boost::shared_ptr<Stripable> s)
2879 {
2880         boost::shared_ptr<Stripable> ss = spilled_strip.lock();
2881         if (ss != s) {
2882                 spilled_strip = s;
2883                 show_spill_change (s); /* EMIT SIGNAL */
2884                 if (s) {
2885                         _group_tabs->hide ();
2886                 } else {
2887                         _group_tabs->show ();
2888                 }
2889                 redisplay_track_list ();
2890         }
2891 }
2892
2893 bool
2894 Mixer_UI::showing_spill_for (boost::shared_ptr<Stripable> s) const
2895 {
2896         return s == spilled_strip.lock();
2897 }
2898
2899 void
2900 Mixer_UI::register_actions ()
2901 {
2902         Glib::RefPtr<ActionGroup> group = myactions.create_action_group (X_("Mixer"));
2903
2904         myactions.register_action (group, "solo", _("Toggle Solo on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::solo_action));
2905         myactions.register_action (group, "mute", _("Toggle Mute on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::mute_action));
2906         myactions.register_action (group, "recenable", _("Toggle Rec-enable on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::rec_enable_action));
2907         myactions.register_action (group, "increment-gain", _("Decrease Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_up_action));
2908         myactions.register_action (group, "decrement-gain", _("Increase Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_down_action));
2909         myactions.register_action (group, "unity-gain", _("Set Gain to 0dB on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::unity_gain_action));
2910
2911
2912         myactions.register_action (group, "copy-processors", _("Copy Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::copy_processors));
2913         myactions.register_action (group, "cut-processors", _("Cut Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::cut_processors));
2914         myactions.register_action (group, "paste-processors", _("Paste Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::paste_processors));
2915         myactions.register_action (group, "delete-processors", _("Delete Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::delete_processors));
2916         myactions.register_action (group, "select-all-processors", _("Select All (visible) Processors"), sigc::mem_fun (*this, &Mixer_UI::select_all_processors));
2917         myactions.register_action (group, "toggle-processors", _("Toggle Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::toggle_processors));
2918         myactions.register_action (group, "ab-plugins", _("Toggle Selected Plugins"), sigc::mem_fun (*this, &Mixer_UI::ab_plugins));
2919         myactions.register_action (group, "select-none", _("Deselect all strips and processors"), sigc::mem_fun (*this, &Mixer_UI::select_none));
2920
2921         myactions.register_action (group, "scroll-left", _("Scroll Mixer Window to the left"), sigc::mem_fun (*this, &Mixer_UI::scroll_left));
2922         myactions.register_action (group, "scroll-right", _("Scroll Mixer Window to the right"), sigc::mem_fun (*this, &Mixer_UI::scroll_right));
2923
2924         myactions.register_action (group, "toggle-midi-input-active", _("Toggle MIDI Input Active for Mixer-Selected Tracks/Busses"),
2925                                    sigc::bind (sigc::mem_fun (*this, &Mixer_UI::toggle_midi_input_active), false));
2926 }
2927
2928 void
2929 Mixer_UI::load_bindings ()
2930 {
2931         bindings = Bindings::get_bindings (X_("Mixer"), myactions);
2932 }
2933
2934 template<class T> void
2935 Mixer_UI::control_action (boost::shared_ptr<T> (Stripable::*get_control)() const)
2936 {
2937         boost::shared_ptr<ControlList> cl (new ControlList);
2938         boost::shared_ptr<AutomationControl> ac;
2939         bool val = false;
2940         bool have_val = false;
2941
2942         set_axis_targets_for_operation ();
2943
2944         BOOST_FOREACH(AxisView* r, _axis_targets) {
2945                 boost::shared_ptr<Stripable> s = r->stripable();
2946                 if (s) {
2947                         ac = (s.get()->*get_control)();
2948                         if (ac) {
2949                                 cl->push_back (ac);
2950                                 if (!have_val) {
2951                                         val = !ac->get_value();
2952                                         have_val = true;
2953                                 }
2954                         }
2955                 }
2956         }
2957
2958         _session->set_controls (cl,  val, Controllable::UseGroup);
2959 }
2960
2961 void
2962 Mixer_UI::solo_action ()
2963 {
2964         control_action (&Stripable::solo_control);
2965 }
2966
2967 void
2968 Mixer_UI::mute_action ()
2969 {
2970         control_action (&Stripable::mute_control);
2971 }
2972
2973 void
2974 Mixer_UI::rec_enable_action ()
2975 {
2976         control_action (&Stripable::rec_enable_control);
2977 }
2978
2979 void
2980 Mixer_UI::step_gain_up_action ()
2981 {
2982         set_axis_targets_for_operation ();
2983
2984         BOOST_FOREACH(AxisView* r, _axis_targets) {
2985                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2986                 if (ms) {
2987                         ms->step_gain_up ();
2988                 }
2989         }
2990 }
2991
2992 void
2993 Mixer_UI::step_gain_down_action ()
2994 {
2995         set_axis_targets_for_operation ();
2996
2997         BOOST_FOREACH(AxisView* r, _axis_targets) {
2998                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2999                 if (ms) {
3000                         ms->step_gain_down ();
3001                 }
3002         }
3003 }
3004
3005 void
3006 Mixer_UI::unity_gain_action ()
3007 {
3008         set_axis_targets_for_operation ();
3009
3010         BOOST_FOREACH(AxisView* r, _axis_targets) {
3011                 boost::shared_ptr<Stripable> s = r->stripable();
3012                 if (s) {
3013                         boost::shared_ptr<AutomationControl> ac = s->gain_control();
3014                         if (ac) {
3015                                 ac->set_value (1.0, Controllable::UseGroup);
3016                         }
3017                 }
3018         }
3019 }
3020
3021 void
3022 Mixer_UI::copy_processors ()
3023 {
3024         set_axis_targets_for_operation ();
3025
3026         BOOST_FOREACH(AxisView* r, _axis_targets) {
3027                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3028                 if (ms) {
3029                         ms->copy_processors ();
3030                 }
3031         }
3032 }
3033 void
3034 Mixer_UI::cut_processors ()
3035 {
3036         set_axis_targets_for_operation ();
3037
3038         BOOST_FOREACH(AxisView* r, _axis_targets) {
3039                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3040                 if (ms) {
3041                         ms->cut_processors ();
3042                 }
3043         }
3044 }
3045 void
3046 Mixer_UI::paste_processors ()
3047 {
3048         set_axis_targets_for_operation ();
3049
3050         BOOST_FOREACH(AxisView* r, _axis_targets) {
3051                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3052                 if (ms) {
3053                         ms->paste_processors ();
3054                 }
3055         }
3056 }
3057 void
3058 Mixer_UI::select_all_processors ()
3059 {
3060         set_axis_targets_for_operation ();
3061
3062         BOOST_FOREACH(AxisView* r, _axis_targets) {
3063                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3064                 if (ms) {
3065                         ms->select_all_processors ();
3066                 }
3067         }
3068 }
3069 void
3070 Mixer_UI::toggle_processors ()
3071 {
3072         set_axis_targets_for_operation ();
3073
3074         BOOST_FOREACH(AxisView* r, _axis_targets) {
3075                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3076                 if (ms) {
3077                         ms->toggle_processors ();
3078                 }
3079         }
3080 }
3081 void
3082 Mixer_UI::ab_plugins ()
3083 {
3084         set_axis_targets_for_operation ();
3085
3086         BOOST_FOREACH(AxisView* r, _axis_targets) {
3087                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3088                 if (ms) {
3089                         ms->ab_plugins ();
3090                 }
3091         }
3092 }
3093
3094 void
3095 Mixer_UI::vca_assign (boost::shared_ptr<VCA> vca)
3096 {
3097         set_axis_targets_for_operation ();
3098         BOOST_FOREACH(AxisView* r, _axis_targets) {
3099                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3100                 if (ms) {
3101                         ms->vca_assign (vca);
3102                 }
3103         }
3104 }
3105
3106 void
3107 Mixer_UI::vca_unassign (boost::shared_ptr<VCA> vca)
3108 {
3109         set_axis_targets_for_operation ();
3110         BOOST_FOREACH(AxisView* r, _axis_targets) {
3111                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3112                 if (ms) {
3113                         ms->vca_unassign (vca);
3114                 }
3115         }
3116 }