gtk2_ardour/mixer_ui.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <algorithm>
  25 #include <map>
  26 #include <sigc++/bind.h>
  27
  28 #include <boost/foreach.hpp>
  29
  30 #include <gtkmm/accelmap.h>
  31
  32 #include "pbd/convert.h"
  33 #include "pbd/stacktrace.h"
  34 #include "pbd/unwind.h"
  35
  36 #include <glibmm/threads.h>
  37
  38 #include <gtkmm2ext/gtk_ui.h>
  39 #include <gtkmm2ext/keyboard.h>
  40 #include <gtkmm2ext/utils.h>
  41 #include <gtkmm2ext/tearoff.h>
  42 #include <gtkmm2ext/window_title.h>
  43 #include <gtkmm2ext/doi.h>
  44
  45 #include "ardour/amp.h"
  46 #include "ardour/debug.h"
  47 #include "ardour/audio_track.h"
  48 #include "ardour/midi_track.h"
  49 #include "ardour/plugin_manager.h"
  50 #include "ardour/route_group.h"
  51 #include "ardour/session.h"
  52 #include "ardour/vca.h"
  53 #include "ardour/vca_manager.h"
  54
  55 #include "keyboard.h"
  56 #include "mixer_ui.h"
  57 #include "mixer_strip.h"
  58 #include "monitor_section.h"
  59 #include "plugin_selector.h"
  60 #include "public_editor.h"
  61 #include "mouse_cursors.h"
  62 #include "ardour_ui.h"
  63 #include "prompter.h"
  64 #include "utils.h"
  65 #include "route_sorter.h"
  66 #include "actions.h"
  67 #include "gui_thread.h"
  68 #include "mixer_group_tabs.h"
  69 #include "route_sorter.h"
  70 #include "timers.h"
  71 #include "ui_config.h"
  72 #include "vca_master_strip.h"
  73
  74 #include "pbd/i18n.h"
  75
  76 using namespace ARDOUR;
  77 using namespace ARDOUR_UI_UTILS;
  78 using namespace PBD;
  79 using namespace Gtk;
  80 using namespace Glib;
  81 using namespace Gtkmm2ext;
  82 using namespace std;
  83
  84 using PBD::atoi;
  85 using PBD::Unwinder;
  86
  87 Mixer_UI* Mixer_UI::_instance = 0;
  88
  89 Mixer_UI*
  90 Mixer_UI::instance ()
  91 {
  92         if (!_instance) {
  93                 _instance  = new Mixer_UI;
  94         }
  95
  96         return _instance;
  97 }
  98
  99 Mixer_UI::Mixer_UI ()
 100         : Tabbable (_content, _("Mixer"))
 101         , no_track_list_redisplay (false)
 102         , in_group_row_change (false)
 103         , track_menu (0)
 104         , _monitor_section (0)
 105         , _plugin_selector (0)
 106         , _strip_width (UIConfiguration::instance().get_default_narrow_ms() ? Narrow : Wide)
 107         , ignore_reorder (false)
 108         , _in_group_rebuild_or_clear (false)
 109         , _route_deletion_in_progress (false)
 110         , _following_editor_selection (false)
 111         , _maximised (false)
 112         , _show_mixer_list (true)
 113         , myactions (X_("mixer"))
 114 {
 115         register_actions ();
 116         load_bindings ();
 117         _content.set_data ("ardour-bindings", bindings);
 118
 119         PresentationInfo::Change.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_presentation_info, this), gui_context());
 120
 121         scroller.set_can_default (true);
 122         // set_default (scroller);
 123
 124         scroller_base.set_flags (Gtk::CAN_FOCUS);
 125         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 126         scroller_base.set_name ("MixerWindow");
 127         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 128
 129         /* set up drag-n-drop */
 130         vector<TargetEntry> target_table;
 131         target_table.push_back (TargetEntry ("PluginFavoritePtr"));
 132         scroller_base.drag_dest_set (target_table);
 133         scroller_base.signal_drag_data_received().connect (sigc::mem_fun(*this, &Mixer_UI::scroller_drag_data_received));
 134
 135         // add as last item of strip packer
 136         strip_packer.pack_end (scroller_base, true, true);
 137
 138         _group_tabs = new MixerGroupTabs (this);
 139         VBox* b = manage (new VBox);
 140         b->set_spacing (0);
 141         b->set_border_width (0);
 142         b->pack_start (*_group_tabs, PACK_SHRINK);
 143         b->pack_start (strip_packer);
 144         b->show_all ();
 145
 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         string vca_text = _("Control Masters");
 257         vca_label.set_text (vca_text);
 258         vca_label_bar.set_size_request (-1, 16 + 1); /* must match height in GroupTabs::set_size_request()  + 1 border px*/
 259
 260 #ifndef MIXBUS
 261         vca_label_bar.set_name (X_("VCALabelBar"));
 262         vca_label_bar.add (vca_label);
 263 #endif
 264
 265         vca_vpacker.pack_start (vca_label_bar, false, false);
 266
 267         vca_scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 268         vca_scroller_base.set_name (X_("MixerWindow"));
 269         vca_scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::masters_scroller_button_release), false);
 270         vca_hpacker.pack_end (vca_scroller_base, true, true);
 271
 272         vca_scroller.add (vca_hpacker);
 273         vca_scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 274         vca_scroller.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 275
 276         vca_vpacker.pack_start (vca_scroller, true, true);
 277
 278         inner_pane.add (scroller);
 279         inner_pane.add (vca_vpacker);
 280
 281         global_hpacker.pack_start (inner_pane, true, true);
 282         global_hpacker.pack_start (out_packer, false, false);
 283
 284         list_hpane.set_check_divider_position (true);
 285         list_hpane.add (list_vpacker);
 286         list_hpane.add (global_hpacker);
 287
 288
 289         XMLNode const * settings = ARDOUR_UI::instance()->mixer_settings();
 290         XMLProperty const * prop;
 291         float fract;
 292
 293         {
 294                 LocaleGuard lg;
 295
 296                 if (!settings || ((prop = settings->property ("mixer-rhs-pane1-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 297                         rhs_pane1.set_divider (0, 0.6f);
 298                 } else {
 299                         rhs_pane1.set_divider (0, fract);
 300                 }
 301                 if (!settings || ((prop = settings->property ("mixer-rhs-pane2-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 302                         rhs_pane2.set_divider (0, 0.7f);
 303                 } else {
 304                         rhs_pane2.set_divider (0, fract);
 305                 }
 306                 if (!settings || ((prop = settings->property ("mixer-list-hpane-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 307                         list_hpane.set_divider (0, 0.2f);
 308                 } else {
 309                         list_hpane.set_divider (0, fract);
 310                 }
 311                 if (!settings || ((prop = settings->property ("mixer-inner-pane-pos")) == 0)  || ((fract = atof (prop->value())) > 1.0)) {
 312                         inner_pane.set_divider (0, 0.8f);
 313                 } else {
 314                         inner_pane.set_divider (0, atof (prop->value()));
 315                 }
 316         }
 317
 318         rhs_pane1.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 319         rhs_pane2.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 320         list_hpane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 321         inner_pane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 322
 323         _content.pack_start (list_hpane, true, true);
 324
 325         update_title ();
 326
 327         route_group_display_button_box->show();
 328         route_group_add_button->show();
 329         route_group_remove_button->show();
 330
 331         _content.show ();
 332         _content.set_name ("MixerWindow");
 333
 334         global_hpacker.show();
 335         scroller.show();
 336         scroller_base.show();
 337         scroller_hpacker.show();
 338         mixer_scroller_vpacker.show();
 339         list_vpacker.show();
 340         group_display_button_label.show();
 341         group_display_button.show();
 342         group_display_scroller.show();
 343         favorite_plugins_scroller.show();
 344         group_display_vbox.show();
 345         group_display_frame.show();
 346         favorite_plugins_frame.show();
 347         rhs_pane1.show();
 348         rhs_pane2.show();
 349         strip_packer.show();
 350         inner_pane.show();
 351         vca_scroller.show();
 352         vca_vpacker.show();
 353         vca_hpacker.show();
 354         vca_label_bar.show();
 355         vca_label.show();
 356         vca_scroller_base.show();
 357         out_packer.show();
 358         list_hpane.show();
 359         group_display.show();
 360         favorite_plugins_display.show();
 361
 362         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 363
 364         /* handle escape */
 365
 366         ARDOUR_UI::instance()->Escape.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::escape, this), gui_context());
 367
 368 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 369         _plugin_selector = new PluginSelector (PluginManager::instance ());
 370 #else
 371 #error implement deferred Plugin-Favorite list
 372 #endif
 373         PluginManager::instance ().PluginListChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 374         PluginManager::instance ().PluginStatusesChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 375         ARDOUR::Plugin::PresetsChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 376 }
 377
 378 Mixer_UI::~Mixer_UI ()
 379 {
 380         if (_monitor_section) {
 381                 monitor_section_detached ();
 382                 delete _monitor_section;
 383         }
 384         delete _plugin_selector;
 385 }
 386
 387 void
 388 Mixer_UI::escape ()
 389 {
 390         select_none ();
 391 }
 392
 393 void
 394 Mixer_UI::track_editor_selection ()
 395 {
 396         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 397 }
 398
 399 Gtk::Window*
 400 Mixer_UI::use_own_window (bool and_fill_it)
 401 {
 402         bool new_window = !own_window();
 403
 404         Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
 405
 406
 407         if (win && new_window) {
 408                 win->set_name ("MixerWindow");
 409                 ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Mixer"), this);
 410                 win->signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_scroll_event), false);
 411                 win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
 412                 win->set_data ("ardour-bindings", bindings);
 413                 update_title ();
 414         }
 415
 416         return win;
 417 }
 418
 419 void
 420 Mixer_UI::show_window ()
 421 {
 422         Tabbable::show_window ();
 423
 424         /* show/hide group tabs as required */
 425         parameter_changed ("show-group-tabs");
 426
 427         /* now reset each strips width so the right widgets are shown */
 428
 429         TreeModel::Children rows = track_model->children();
 430         TreeModel::Children::iterator ri;
 431
 432         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 433                 AxisView* av = (*ri)[stripable_columns.strip];
 434                 MixerStrip* ms = dynamic_cast<MixerStrip*> (av);
 435                 if (!ms) {
 436                         continue;
 437                 }
 438                 ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 439                 /* Fix visibility of mixer strip stuff */
 440                 ms->parameter_changed (X_("mixer-element-visibility"));
 441         }
 442
 443         /* force focus into main area */
 444         scroller_base.grab_focus ();
 445 }
 446
 447 void
 448 Mixer_UI::remove_master (VCAMasterStrip* vms)
 449 {
 450         if (_session && _session->deletion_in_progress()) {
 451                 /* its all being taken care of */
 452                 return;
 453         }
 454
 455         TreeModel::Children rows = track_model->children();
 456         TreeModel::Children::iterator ri;
 457
 458         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 459                 if ((*ri)[stripable_columns.strip] == vms) {
 460                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 461                         track_model->erase (ri);
 462                         break;
 463                 }
 464         }
 465 }
 466
 467 bool
 468 Mixer_UI::masters_scroller_button_release (GdkEventButton* ev)
 469 {
 470         using namespace Menu_Helpers;
 471
 472         if (Keyboard::is_context_menu_event (ev)) {
 473                 ARDOUR_UI::instance()->add_route ();
 474                 return true;
 475         }
 476
 477         return false;
 478 }
 479
 480 void
 481 Mixer_UI::add_masters (VCAList& vlist)
 482 {
 483         StripableList sl;
 484
 485         for (VCAList::iterator v = vlist.begin(); v != vlist.end(); ++v) {
 486                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
 487         }
 488
 489         add_stripables (sl);
 490 }
 491
 492 void
 493 Mixer_UI::add_routes (RouteList& rlist)
 494 {
 495         StripableList sl;
 496
 497         for (RouteList::iterator r = rlist.begin(); r != rlist.end(); ++r) {
 498                 sl.push_back (*r);
 499         }
 500
 501         add_stripables (sl);
 502 }
 503
 504 void
 505 Mixer_UI::add_stripables (StripableList& slist)
 506 {
 507         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 508         bool from_scratch = (track_model->children().size() == 0);
 509         uint32_t nroutes = 0;
 510
 511         slist.sort (StripablePresentationInfoSorter());
 512
 513         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 514                 boost::shared_ptr<Stripable> s = (*it)[stripable_columns.stripable];
 515
 516                 if (!s) {
 517                         continue;
 518                 }
 519
 520                 nroutes++;
 521
 522                 if (s->presentation_info().order() == (slist.front()->presentation_info().order() + slist.size())) {
 523                         insert_iter = it;
 524                         break;
 525                 }
 526         }
 527
 528         MixerStrip* strip;
 529
 530
 531         try {
 532                 PBD::Unwinder<bool> uw (no_track_list_redisplay, true);
 533
 534                 track_display.set_model (Glib::RefPtr<ListStore>());
 535
 536                 for (StripableList::iterator s = slist.begin(); s != slist.end(); ++s) {
 537
 538                         boost::shared_ptr<Route> route;
 539                         boost::shared_ptr<VCA> vca;
 540
 541                         if ((vca  = boost::dynamic_pointer_cast<VCA> (*s))) {
 542
 543                                 VCAMasterStrip* vms = new VCAMasterStrip (_session, vca);
 544
 545                                 TreeModel::Row row = *(track_model->append());
 546
 547                                 row[stripable_columns.text] = vca->name();
 548                                 row[stripable_columns.visible] = vms->marked_for_display ();
 549                                 row[stripable_columns.strip] = vms;
 550                                 row[stripable_columns.stripable] = vca;
 551
 552                                 vms->CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_master, this, _1), gui_context());
 553
 554                         } else if ((route = boost::dynamic_pointer_cast<Route> (*s))) {
 555
 556                                 if (route->is_auditioner()) {
 557                                         continue;
 558                                 }
 559
 560                                 if (route->is_monitor()) {
 561
 562                                         if (!_monitor_section) {
 563                                                 _monitor_section = new MonitorSection (_session);
 564
 565                                                 XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 566                                                 if (mnode) {
 567                                                         _monitor_section->tearoff().set_state (*mnode);
 568                                                 }
 569                                         }
 570
 571                                         out_packer.pack_end (_monitor_section->tearoff(), false, false);
 572                                         _monitor_section->set_session (_session);
 573                                         _monitor_section->tearoff().show_all ();
 574
 575                                         _monitor_section->tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
 576                                         _monitor_section->tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
 577
 578                                         monitor_section_attached ();
 579
 580                                         route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 581
 582                                         /* no regular strip shown for control out */
 583
 584                                         continue;
 585                                 }
 586
 587                                 strip = new MixerStrip (*this, _session, route);
 588                                 strips.push_back (strip);
 589
 590                                 UIConfiguration::instance().get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 591
 592                                 if (strip->width_owner() != strip) {
 593                                         strip->set_width_enum (_strip_width, this);
 594                                 }
 595
 596                                 show_strip (strip);
 597
 598                                 if (!route->is_master()) {
 599
 600                                         TreeModel::Row row = *(track_model->insert (insert_iter));
 601
 602                                         row[stripable_columns.text] = route->name();
 603                                         row[stripable_columns.visible] = strip->marked_for_display();
 604                                         row[stripable_columns.stripable] = route;
 605                                         row[stripable_columns.strip] = strip;
 606
 607                                         if (nroutes != 0) {
 608                                                 _selection.add (strip);
 609                                         }
 610
 611                                 } else {
 612
 613                                         out_packer.pack_start (*strip, false, false);
 614                                         strip->set_packed (true);
 615                                 }
 616
 617                                 strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 618                                 strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 619                         }
 620
 621                         (*s)->presentation_info().PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 622                         (*s)->PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 623                 }
 624
 625         } catch (const std::exception& e) {
 626                 error << string_compose (_("Error adding GUI elements for new tracks/busses %1"), e.what()) << endmsg;
 627         }
 628
 629         track_display.set_model (track_model);
 630
 631         if (!from_scratch) {
 632                 sync_presentation_info_from_treeview ();
 633         }
 634
 635         redisplay_track_list ();
 636 }
 637
 638 void
 639 Mixer_UI::deselect_all_strip_processors ()
 640 {
 641         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 642                 (*i)->deselect_all_processors();
 643         }
 644 }
 645
 646 void
 647 Mixer_UI::select_strip (MixerStrip& ms, bool add)
 648 {
 649         if (add) {
 650                 _selection.add (&ms);
 651         } else {
 652                 _selection.set (&ms);
 653         }
 654 }
 655
 656 void
 657 Mixer_UI::select_none ()
 658 {
 659         _selection.clear_routes();
 660         deselect_all_strip_processors();
 661 }
 662
 663 void
 664 Mixer_UI::delete_processors ()
 665 {
 666         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 667                 (*i)->delete_processors();
 668         }
 669 }
 670
 671
 672 void
 673 Mixer_UI::remove_strip (MixerStrip* strip)
 674 {
 675         if (_session && _session->deletion_in_progress()) {
 676                 /* its all being taken care of */
 677                 return;
 678         }
 679
 680         TreeModel::Children rows = track_model->children();
 681         TreeModel::Children::iterator ri;
 682         list<MixerStrip *>::iterator i;
 683
 684         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 685                 strips.erase (i);
 686         }
 687
 688         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 689                 if ((*ri)[stripable_columns.strip] == strip) {
 690                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 691                         track_model->erase (ri);
 692                         break;
 693                 }
 694         }
 695 }
 696
 697 void
 698 Mixer_UI::sync_presentation_info_from_treeview ()
 699 {
 700         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 701                 return;
 702         }
 703
 704         TreeModel::Children rows = track_model->children();
 705
 706         if (rows.empty()) {
 707                 return;
 708         }
 709
 710         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync presentation info from treeview\n");
 711
 712         TreeModel::Children::iterator ri;
 713         bool change = false;
 714         uint32_t order = 0;
 715
 716         // special case master if it's got PI order 0 lets keep it there
 717         if (_session->master_out() && (_session->master_out()->presentation_info().order() == 0)) {
 718                 order++;
 719         }
 720
 721         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 722                 bool visible = (*ri)[stripable_columns.visible];
 723                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 724
 725                 if (!stripable) {
 726                         continue;
 727                 }
 728
 729                 /* Monitor and Auditioner do not get their presentation
 730                  * info reset here.
 731                  */
 732
 733                 if (stripable->is_monitor() || stripable->is_auditioner()) {
 734                         continue;
 735                 }
 736
 737                 /* Master also doesn't get set here but since the editor allows
 738                  * it to be reordered, we need to preserve its ordering.
 739                  */
 740
 741                 stripable->presentation_info().set_hidden (!visible);
 742
 743                 // master may not get set here, but if it is zero keep it there
 744                 if (stripable->is_master() && (stripable->presentation_info().order() == 0)) {
 745                         continue;
 746                 }
 747
 748                 if (order != stripable->presentation_info().order()) {
 749                         stripable->set_presentation_order (order, false);
 750                         change = true;
 751                 }
 752
 753                 ++order;
 754         }
 755
 756         if (change) {
 757                 DEBUG_TRACE (DEBUG::OrderKeys, "... notify PI change from mixer GUI\n");
 758                 _session->notify_presentation_info_change ();
 759                 _session->set_dirty();
 760         }
 761 }
 762
 763 void
 764 Mixer_UI::sync_treeview_from_presentation_info ()
 765 {
 766         if (!_session || _session->deletion_in_progress()) {
 767                 return;
 768         }
 769
 770         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from presentation info.\n");
 771
 772         /* we could get here after either a change in the Mixer or Editor sort
 773          * order, but either way, the mixer order keys reflect the intended
 774          * order for the GUI, so reorder the treeview model to match it.
 775          */
 776
 777         vector<int> neworder;
 778         TreeModel::Children rows = track_model->children();
 779         uint32_t old_order = 0;
 780         bool changed = false;
 781
 782         if (rows.empty()) {
 783                 return;
 784         }
 785
 786         OrderingKeys sorted;
 787
 788         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 789                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 790                 sorted.push_back (OrderKeys (old_order, stripable->presentation_info().order()));
 791         }
 792
 793         SortByNewDisplayOrder cmp;
 794
 795         sort (sorted.begin(), sorted.end(), cmp);
 796         neworder.assign (sorted.size(), 0);
 797
 798         uint32_t n = 0;
 799
 800         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 801
 802                 neworder[n] = sr->old_display_order;
 803
 804                 if (sr->old_display_order != n) {
 805                         changed = true;
 806                 }
 807         }
 808
 809         if (changed) {
 810                 Unwinder<bool> uw (ignore_reorder, true);
 811                 track_model->reorder (neworder);
 812         }
 813
 814         redisplay_track_list ();
 815 }
 816
 817 void
 818 Mixer_UI::follow_editor_selection ()
 819 {
 820         if (_following_editor_selection) {
 821                 return;
 822         }
 823
 824         _following_editor_selection = true;
 825         _selection.block_routes_changed (true);
 826
 827         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 828
 829         _selection.clear_routes ();
 830
 831         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 832                 TimeAxisView* tav = dynamic_cast<TimeAxisView*> (*i);
 833                 if (tav) {
 834                         AxisView* axis = axis_by_stripable (tav->stripable());
 835                         if (axis) {
 836                                 _selection.add (axis);
 837                         }
 838                 }
 839         }
 840
 841         _following_editor_selection = false;
 842         _selection.block_routes_changed (false);
 843 }
 844
 845
 846 MixerStrip*
 847 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r) const
 848 {
 849         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 850                 if ((*i)->route() == r) {
 851                         return (*i);
 852                 }
 853         }
 854
 855         return 0;
 856 }
 857
 858 AxisView*
 859 Mixer_UI::axis_by_stripable (boost::shared_ptr<Stripable> s) const
 860 {
 861         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 862                 if ((*i)->stripable() == s) {
 863                         return (*i);
 864                 }
 865         }
 866
 867         return 0;
 868 }
 869
 870 bool
 871 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 872 {
 873         if (ev->button == 1) {
 874                 if (_selection.selected (strip)) {
 875                         /* primary-click: toggle selection state of strip */
 876                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 877                                 _selection.remove (strip);
 878                         } else if (_selection.axes.size() > 1) {
 879                                 /* de-select others */
 880                                 _selection.set (strip);
 881                         }
 882                 } else {
 883                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 884                                 _selection.add (strip);
 885                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 886
 887                                 /* extend selection */
 888
 889                                 vector<MixerStrip*> tmp;
 890                                 bool accumulate = false;
 891                                 bool found_another = false;
 892
 893                                 tmp.push_back (strip);
 894
 895                                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 896                                         if ((*i) == strip) {
 897                                                 /* hit clicked strip, start accumulating till we hit the first
 898                                                    selected strip
 899                                                 */
 900                                                 if (accumulate) {
 901                                                         /* done */
 902                                                         break;
 903                                                 } else {
 904                                                         accumulate = true;
 905                                                 }
 906                                         } else if (_selection.selected (*i)) {
 907                                                 /* hit selected strip. if currently accumulating others,
 908                                                    we're done. if not accumulating others, start doing so.
 909                                                 */
 910                                                 found_another = true;
 911                                                 if (accumulate) {
 912                                                         /* done */
 913                                                         break;
 914                                                 } else {
 915                                                         accumulate = true;
 916                                                 }
 917                                         } else {
 918                                                 if (accumulate) {
 919                                                         tmp.push_back (*i);
 920                                                 }
 921                                         }
 922                                 }
 923
 924                                 if (found_another) {
 925                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 926                                                 _selection.add (*i);
 927                                         }
 928                                 } else
 929                                         _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
 930                         } else {
 931                                 _selection.set (strip);
 932                         }
 933                 }
 934         }
 935
 936         return true;
 937 }
 938
 939 void
 940 Mixer_UI::set_session (Session* sess)
 941 {
 942         SessionHandlePtr::set_session (sess);
 943
 944         if (_plugin_selector) {
 945                 _plugin_selector->set_session (_session);
 946         }
 947
 948         _group_tabs->set_session (sess);
 949
 950         if (_monitor_section) {
 951                 _monitor_section->set_session (_session);
 952         }
 953
 954         if (!_session) {
 955                 return;
 956         }
 957
 958         refill_favorite_plugins();
 959
 960         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 961         set_state (*node, 0);
 962
 963         update_title ();
 964
 965         initial_track_display ();
 966
 967         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_routes, this, _1), gui_context());
 968         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 969         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 970         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 971         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 972         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 973         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 974
 975         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_masters, this, _1), gui_context());
 976
 977         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 978
 979         route_groups_changed ();
 980
 981         if (_visible) {
 982                 show_window();
 983         }
 984         start_updating ();
 985 }
 986
 987 void
 988 Mixer_UI::session_going_away ()
 989 {
 990         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 991
 992         _in_group_rebuild_or_clear = true;
 993         group_model->clear ();
 994         _in_group_rebuild_or_clear = false;
 995
 996         _selection.clear ();
 997         track_model->clear ();
 998
 999         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1000                 delete (*i);
1001         }
1002
1003         if (_monitor_section) {
1004                 _monitor_section->tearoff().hide_visible ();
1005         }
1006
1007         monitor_section_detached ();
1008
1009         strips.clear ();
1010
1011         stop_updating ();
1012
1013         SessionHandlePtr::session_going_away ();
1014
1015         _session = 0;
1016         update_title ();
1017 }
1018
1019 void
1020 Mixer_UI::track_visibility_changed (std::string const & path)
1021 {
1022         if (_session && _session->deletion_in_progress()) {
1023                 return;
1024         }
1025
1026         TreeIter iter;
1027
1028         if ((iter = track_model->get_iter (path))) {
1029
1030                 AxisView* av = (*iter)[stripable_columns.strip];
1031                 bool visible = (*iter)[stripable_columns.visible];
1032
1033                 if (av->set_marked_for_display (!visible)) {
1034                         update_track_visibility ();
1035                 }
1036         }
1037 }
1038
1039 void
1040 Mixer_UI::update_track_visibility ()
1041 {
1042         TreeModel::Children rows = track_model->children();
1043         TreeModel::Children::iterator i;
1044
1045         {
1046                 Unwinder<bool> uw (no_track_list_redisplay, true);
1047
1048                 for (i = rows.begin(); i != rows.end(); ++i) {
1049                         AxisView* av = (*i)[stripable_columns.strip];
1050                         (*i)[stripable_columns.visible] = av->marked_for_display ();
1051                 }
1052
1053                 /* force presentation catch up with visibility changes
1054                  */
1055
1056                 sync_presentation_info_from_treeview ();
1057         }
1058
1059         redisplay_track_list ();
1060 }
1061
1062 void
1063 Mixer_UI::show_strip (MixerStrip* ms)
1064 {
1065         TreeModel::Children rows = track_model->children();
1066         TreeModel::Children::iterator i;
1067
1068         for (i = rows.begin(); i != rows.end(); ++i) {
1069
1070                 AxisView* av = (*i)[stripable_columns.strip];
1071                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1072                 if (strip == ms) {
1073                         (*i)[stripable_columns.visible] = true;
1074                         av->set_marked_for_display (true);
1075                         update_track_visibility ();
1076                         break;
1077                 }
1078         }
1079 }
1080
1081 void
1082 Mixer_UI::hide_strip (MixerStrip* ms)
1083 {
1084         TreeModel::Children rows = track_model->children();
1085         TreeModel::Children::iterator i;
1086
1087         for (i = rows.begin(); i != rows.end(); ++i) {
1088
1089                 AxisView* av = (*i)[stripable_columns.strip];
1090                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1091                 if (strip == ms) {
1092                         (*i)[stripable_columns.visible] = false;
1093                         av->set_marked_for_display (false);
1094                         update_track_visibility ();
1095                         break;
1096                 }
1097         }
1098 }
1099
1100 gint
1101 Mixer_UI::start_updating ()
1102 {
1103     fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
1104     return 0;
1105 }
1106
1107 gint
1108 Mixer_UI::stop_updating ()
1109 {
1110     fast_screen_update_connection.disconnect();
1111     return 0;
1112 }
1113
1114 void
1115 Mixer_UI::fast_update_strips ()
1116 {
1117         if (_content.is_mapped () && _session) {
1118                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1119                         (*i)->fast_update ();
1120                 }
1121         }
1122 }
1123
1124 void
1125 Mixer_UI::set_all_strips_visibility (bool yn)
1126 {
1127         TreeModel::Children rows = track_model->children();
1128         TreeModel::Children::iterator i;
1129
1130         {
1131                 Unwinder<bool> uw (no_track_list_redisplay, true);
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
1138                         if (!strip) {
1139                                 continue;
1140                         }
1141
1142                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1143                                 continue;
1144                         }
1145
1146                         (*i)[stripable_columns.visible] = yn;
1147                 }
1148         }
1149
1150         redisplay_track_list ();
1151 }
1152
1153
1154 void
1155 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
1156 {
1157         TreeModel::Children rows = track_model->children();
1158         TreeModel::Children::iterator i;
1159
1160         {
1161                 Unwinder<bool> uw (no_track_list_redisplay, true);
1162
1163                 for (i = rows.begin(); i != rows.end(); ++i) {
1164
1165                         AxisView* av = (*i)[stripable_columns.strip];
1166                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1167
1168                         if (!strip) {
1169                                 continue;
1170                         }
1171
1172                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1173                                 continue;
1174                         }
1175
1176                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
1177                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
1178
1179                         switch (tracks) {
1180                         case 0:
1181                                 (*i)[stripable_columns.visible] = yn;
1182                                 break;
1183
1184                         case 1:
1185                                 if (at) { /* track */
1186                                         (*i)[stripable_columns.visible] = yn;
1187                                 }
1188                                 break;
1189
1190                         case 2:
1191                                 if (!at && !mt) { /* bus */
1192                                         (*i)[stripable_columns.visible] = yn;
1193                                 }
1194                                 break;
1195
1196                         case 3:
1197                                 if (mt) { /* midi-track */
1198                                         (*i)[stripable_columns.visible] = yn;
1199                                 }
1200                                 break;
1201                         }
1202                 }
1203         }
1204
1205         redisplay_track_list ();
1206 }
1207
1208 void
1209 Mixer_UI::hide_all_routes ()
1210 {
1211         set_all_strips_visibility (false);
1212 }
1213
1214 void
1215 Mixer_UI::show_all_routes ()
1216 {
1217         set_all_strips_visibility (true);
1218 }
1219
1220 void
1221 Mixer_UI::show_all_audiobus ()
1222 {
1223         set_all_audio_midi_visibility (2, true);
1224 }
1225 void
1226 Mixer_UI::hide_all_audiobus ()
1227 {
1228         set_all_audio_midi_visibility (2, false);
1229 }
1230
1231 void
1232 Mixer_UI::show_all_audiotracks()
1233 {
1234         set_all_audio_midi_visibility (1, true);
1235 }
1236 void
1237 Mixer_UI::hide_all_audiotracks ()
1238 {
1239         set_all_audio_midi_visibility (1, false);
1240 }
1241
1242 void
1243 Mixer_UI::show_all_miditracks()
1244 {
1245         set_all_audio_midi_visibility (3, true);
1246 }
1247 void
1248 Mixer_UI::hide_all_miditracks ()
1249 {
1250         set_all_audio_midi_visibility (3, false);
1251 }
1252
1253 void
1254 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1255 {
1256         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1257         sync_presentation_info_from_treeview ();
1258 }
1259
1260 void
1261 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1262 {
1263         /* this happens as the second step of a DnD within the treeview as well
1264            as when a row/route is actually deleted.
1265
1266            if it was a deletion then we have to force a redisplay because
1267            order keys may not have changed.
1268         */
1269
1270         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1271         sync_presentation_info_from_treeview ();
1272
1273         if (_route_deletion_in_progress) {
1274                 redisplay_track_list ();
1275         }
1276 }
1277
1278 void
1279 Mixer_UI::spill_redisplay (boost::shared_ptr<VCA> vca)
1280 {
1281         TreeModel::Children rows = track_model->children();
1282
1283         for (TreeModel::Children::iterator i = rows.begin(); i != rows.end(); ++i) {
1284
1285                 AxisView* av = (*i)[stripable_columns.strip];
1286                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1287
1288                 if (!strip) {
1289                         /* we're in the middle of changing a row, don't worry */
1290                         continue;
1291                 }
1292
1293                 if (!strip->route()) {
1294                         /* non-route element */
1295                         continue;
1296                 }
1297
1298                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1299                         continue;
1300                 }
1301
1302                 if (strip->route()->slaved_to (vca)) {
1303
1304                         if (strip->packed()) {
1305                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1306                         } else {
1307                                 strip_packer.pack_start (*strip, false, false);
1308                                 strip->set_packed (true);
1309                         }
1310
1311                 } else {
1312
1313                         if (strip->packed()) {
1314                                 strip_packer.remove (*strip);
1315                                 strip->set_packed (false);
1316                         }
1317                 }
1318         }
1319 }
1320
1321 void
1322 Mixer_UI::redisplay_track_list ()
1323 {
1324         if (no_track_list_redisplay) {
1325                 return;
1326         }
1327
1328         boost::shared_ptr<VCA> sv = spilled_vca.lock ();
1329
1330         if (sv) {
1331                 spill_redisplay (sv);
1332                 return;
1333         }
1334
1335         TreeModel::Children rows = track_model->children();
1336         TreeModel::Children::iterator i;
1337         uint32_t n_masters = 0;
1338
1339         container_clear (vca_hpacker);
1340         vca_hpacker.pack_end (vca_scroller_base, true, true);
1341
1342         for (i = rows.begin(); i != rows.end(); ++i) {
1343
1344                 AxisView* s = (*i)[stripable_columns.strip];
1345                 bool const visible = (*i)[stripable_columns.visible];
1346                 boost::shared_ptr<Stripable> stripable = (*i)[stripable_columns.stripable];
1347
1348                 if (!s) {
1349                         /* we're in the middle of changing a row, don't worry */
1350                         continue;
1351                 }
1352
1353                 VCAMasterStrip* vms;
1354
1355                 if ((vms = dynamic_cast<VCAMasterStrip*> (s))) {
1356                         if (visible) {
1357                                 vca_hpacker.pack_start (*vms, false, false);
1358                                 vms->show ();
1359                                 n_masters++;
1360                         }
1361                         continue;
1362                 }
1363
1364                 MixerStrip* strip = dynamic_cast<MixerStrip*> (s);
1365
1366                 if (!strip) {
1367                         continue;
1368                 }
1369
1370                 if (visible) {
1371
1372                         if (strip->packed()) {
1373                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1374                         } else {
1375                                 strip_packer.pack_start (*strip, false, false);
1376                                 strip->set_packed (true);
1377                         }
1378
1379                 } else {
1380
1381                         if (stripable->is_master() || stripable->is_monitor()) {
1382                                 /* do nothing, these cannot be hidden */
1383                         } else {
1384                                 if (strip->packed()) {
1385                                         strip_packer.remove (*strip);
1386                                         strip->set_packed (false);
1387                                 }
1388                         }
1389                 }
1390         }
1391
1392         /* update visibility of VCA assign buttons */
1393
1394         if (n_masters == 0) {
1395                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::remove_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1396                 vca_vpacker.hide ();
1397         } else {
1398                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::add_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1399                 vca_vpacker.show ();
1400         }
1401
1402         _group_tabs->set_dirty ();
1403 }
1404
1405 void
1406 Mixer_UI::strip_width_changed ()
1407 {
1408         _group_tabs->set_dirty ();
1409
1410 #ifdef __APPLE__
1411         TreeModel::Children rows = track_model->children();
1412         TreeModel::Children::iterator i;
1413         long order;
1414
1415         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1416                 AxisView* av = (*i)[stripable_columns.strip];
1417                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1418
1419                 if (strip == 0) {
1420                         continue;
1421                 }
1422
1423                 bool visible = (*i)[stripable_columns.visible];
1424
1425                 if (visible) {
1426                         strip->queue_draw();
1427                 }
1428         }
1429 #endif
1430
1431 }
1432
1433 struct PresentationInfoMixerSorter
1434 {
1435         bool operator() (boost::shared_ptr<Stripable> a, boost::shared_ptr<Stripable> b) {
1436                 if (a->is_master()) {
1437                         /* master after everything else */
1438                         return false;
1439                 } else if (b->is_master()) {
1440                         /* everything else before master */
1441                         return true;
1442                 }
1443                 return a->presentation_info().order () < b->presentation_info().order ();
1444         }
1445 };
1446
1447 void
1448 Mixer_UI::initial_track_display ()
1449 {
1450         StripableList sl;
1451
1452         boost::shared_ptr<RouteList> routes = _session->get_routes();
1453
1454         for (RouteList::iterator r = routes->begin(); r != routes->end(); ++r) {
1455                 sl.push_back (*r);
1456         }
1457
1458         VCAList vcas = _session->vca_manager().vcas();
1459
1460         for (VCAList::iterator v = vcas.begin(); v != vcas.end(); ++v) {
1461                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
1462         }
1463
1464         sl.sort (PresentationInfoMixerSorter());
1465
1466         {
1467                 /* These are also used inside ::add_stripables() but we need
1468                  *  them here because we're going to clear the track_model also.
1469                  */
1470                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1471                 Unwinder<bool> uw2 (ignore_reorder, true);
1472
1473                 track_model->clear ();
1474                 add_stripables (sl);
1475         }
1476
1477         redisplay_track_list ();
1478 }
1479
1480 void
1481 Mixer_UI::show_track_list_menu ()
1482 {
1483         if (track_menu == 0) {
1484                 build_track_menu ();
1485         }
1486
1487         track_menu->popup (1, gtk_get_current_event_time());
1488 }
1489
1490 bool
1491 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1492 {
1493         if (Keyboard::is_context_menu_event (ev)) {
1494                 show_track_list_menu ();
1495                 return true;
1496         }
1497         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 1)) {
1498                 TreeModel::Path path;
1499                 TreeViewColumn* column;
1500                 int cellx, celly;
1501                 if (track_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1502                         TreeIter iter = track_model->get_iter (path);
1503                         if ((*iter)[stripable_columns.visible]) {
1504                                 boost::shared_ptr<ARDOUR::Stripable> s = (*iter)[stripable_columns.stripable];
1505                                 move_stripable_into_view (s);
1506                         }
1507                 }
1508         }
1509
1510         return false;
1511 }
1512
1513 void
1514 Mixer_UI::move_stripable_into_view (boost::shared_ptr<ARDOUR::Stripable> s)
1515 {
1516         if (!scroller.get_hscrollbar()) {
1517                 return;
1518         }
1519         if (s->presentation_info().special () || s->presentation_info().flag_match (PresentationInfo::VCA)) {
1520                 return;
1521         }
1522
1523         bool found = false;
1524         int x0 = 0;
1525         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
1526                 if ((*i)->route() == s) {
1527                         int y;
1528                         found = true;
1529                         (*i)->translate_coordinates (strip_packer, 0, 0, x0, y);
1530                         break;
1531                 }
1532         }
1533         if (!found) {
1534                 return;
1535         }
1536
1537         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1538         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), x0 - 1.0)));
1539 }
1540
1541 void
1542 Mixer_UI::build_track_menu ()
1543 {
1544         using namespace Menu_Helpers;
1545         using namespace Gtk;
1546
1547         track_menu = new Menu;
1548         track_menu->set_name ("ArdourContextMenu");
1549         MenuList& items = track_menu->items();
1550
1551         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1552         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1553         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1554         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1555         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1556         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1557         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1558         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1559
1560 }
1561
1562 void
1563 Mixer_UI::stripable_property_changed (const PropertyChange& what_changed, boost::weak_ptr<Stripable> ws)
1564 {
1565         if (!what_changed.contains (ARDOUR::Properties::hidden) && !what_changed.contains (ARDOUR::Properties::name)) {
1566                 return;
1567         }
1568
1569         boost::shared_ptr<Stripable> s = ws.lock ();
1570
1571         if (!s) {
1572                 return;
1573         }
1574
1575         TreeModel::Children rows = track_model->children();
1576         TreeModel::Children::iterator i;
1577
1578         for (i = rows.begin(); i != rows.end(); ++i) {
1579                 boost::shared_ptr<Stripable> ss = (*i)[stripable_columns.stripable];
1580
1581                 if (s == ss) {
1582
1583                         if (what_changed.contains (ARDOUR::Properties::name)) {
1584                                 (*i)[stripable_columns.text] = s->name();
1585                         }
1586
1587                         if (what_changed.contains (ARDOUR::Properties::hidden)) {
1588                                 (*i)[stripable_columns.visible] = !s->presentation_info().hidden();
1589                                 redisplay_track_list ();
1590                         }
1591
1592                         return;
1593                 }
1594         }
1595
1596         error << _("track display list item for renamed strip not found!") << endmsg;
1597 }
1598
1599 bool
1600 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1601 {
1602         TreeModel::Path path;
1603         TreeViewColumn* column;
1604         int cellx;
1605         int celly;
1606
1607         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1608                 _group_tabs->get_menu(0)->popup (1, ev->time);
1609                 return true;
1610         }
1611
1612         TreeIter iter = group_model->get_iter (path);
1613         if (!iter) {
1614                 _group_tabs->get_menu(0)->popup (1, ev->time);
1615                 return true;
1616         }
1617
1618         RouteGroup* group = (*iter)[group_columns.group];
1619
1620         if (Keyboard::is_context_menu_event (ev)) {
1621                 _group_tabs->get_menu(group)->popup (1, ev->time);
1622                 return true;
1623         }
1624
1625         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1626         case 1:
1627                 if (Keyboard::is_edit_event (ev)) {
1628                         if (group) {
1629                                 // edit_route_group (group);
1630 #ifdef __APPLE__
1631                                 group_display.queue_draw();
1632 #endif
1633                                 return true;
1634                         }
1635                 }
1636                 break;
1637
1638         case 0:
1639         {
1640                 bool visible = (*iter)[group_columns.visible];
1641                 (*iter)[group_columns.visible] = !visible;
1642 #ifdef __APPLE__
1643                 group_display.queue_draw();
1644 #endif
1645                 return true;
1646         }
1647
1648         default:
1649                 break;
1650         }
1651
1652         return false;
1653  }
1654
1655 void
1656 Mixer_UI::activate_all_route_groups ()
1657 {
1658         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1659 }
1660
1661 void
1662 Mixer_UI::disable_all_route_groups ()
1663 {
1664         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1665 }
1666
1667 void
1668 Mixer_UI::route_groups_changed ()
1669 {
1670         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1671
1672         _in_group_rebuild_or_clear = true;
1673
1674         /* just rebuild the while thing */
1675
1676         group_model->clear ();
1677
1678 #if 0
1679         /* this is currently not used,
1680          * Mixer_UI::group_display_button_press() has a case for it,
1681          * and a commented edit_route_group() but that's n/a since 2011.
1682          *
1683          * This code is left as reminder that
1684          * row[group_columns.group] = 0 has special meaning.
1685          */
1686         {
1687                 TreeModel::Row row;
1688                 row = *(group_model->append());
1689                 row[group_columns.visible] = true;
1690                 row[group_columns.text] = (_("-all-"));
1691                 row[group_columns.group] = 0;
1692         }
1693 #endif
1694
1695         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1696
1697         _group_tabs->set_dirty ();
1698         _in_group_rebuild_or_clear = false;
1699 }
1700
1701 void
1702 Mixer_UI::new_route_group ()
1703 {
1704         _group_tabs->run_new_group_dialog (0, false);
1705 }
1706
1707 void
1708 Mixer_UI::remove_selected_route_group ()
1709 {
1710         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1711         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1712
1713         if (rows.empty()) {
1714                 return;
1715         }
1716
1717         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1718         TreeIter iter;
1719
1720         /* selection mode is single, so rows.begin() is it */
1721
1722         if ((iter = group_model->get_iter (*i))) {
1723
1724                 RouteGroup* rg = (*iter)[group_columns.group];
1725
1726                 if (rg) {
1727                         _session->remove_route_group (*rg);
1728                 }
1729         }
1730 }
1731
1732 void
1733 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1734 {
1735         if (in_group_row_change) {
1736                 return;
1737         }
1738
1739         /* force an update of any mixer strips that are using this group,
1740            otherwise mix group names don't change in mixer strips
1741         */
1742
1743         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1744                 if ((*i)->route_group() == group) {
1745                         (*i)->route_group_changed();
1746                 }
1747         }
1748
1749         TreeModel::iterator i;
1750         TreeModel::Children rows = group_model->children();
1751         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1752
1753         in_group_row_change = true;
1754
1755         for (i = rows.begin(); i != rows.end(); ++i) {
1756                 if ((*i)[group_columns.group] == group) {
1757                         (*i)[group_columns.visible] = !group->is_hidden ();
1758                         (*i)[group_columns.text] = group->name ();
1759                         break;
1760                 }
1761         }
1762
1763         in_group_row_change = false;
1764
1765         if (change.contains (Properties::name)) {
1766                 _group_tabs->set_dirty ();
1767         }
1768
1769         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1770                 if ((*j)->route_group() == group) {
1771                         if (group->is_hidden ()) {
1772                                 hide_strip (*j);
1773                         } else {
1774                                 show_strip (*j);
1775                         }
1776                 }
1777         }
1778 }
1779
1780 void
1781 Mixer_UI::show_mixer_list (bool yn)
1782 {
1783         if (yn) {
1784                 list_vpacker.show ();
1785         } else {
1786                 list_vpacker.hide ();
1787         }
1788
1789         _show_mixer_list = yn;
1790 }
1791
1792 void
1793 Mixer_UI::show_monitor_section (bool yn)
1794 {
1795         if (!monitor_section()) {
1796                 return;
1797         }
1798         if (monitor_section()->tearoff().torn_off()) {
1799                 return;
1800         }
1801
1802         if (yn) {
1803                 monitor_section()->tearoff().show();
1804         } else {
1805                 monitor_section()->tearoff().hide();
1806         }
1807 }
1808
1809 void
1810 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1811 {
1812         RouteGroup* group;
1813         TreeIter iter;
1814
1815         if ((iter = group_model->get_iter (path))) {
1816
1817                 if ((group = (*iter)[group_columns.group]) == 0) {
1818                         return;
1819                 }
1820
1821                 if (new_text != group->name()) {
1822                         group->set_name (new_text);
1823                 }
1824         }
1825 }
1826
1827 void
1828 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1829 {
1830         RouteGroup* group;
1831
1832         if (in_group_row_change) {
1833                 return;
1834         }
1835
1836         if ((group = (*iter)[group_columns.group]) == 0) {
1837                 return;
1838         }
1839
1840         std::string name = (*iter)[group_columns.text];
1841
1842         if (name != group->name()) {
1843                 group->set_name (name);
1844         }
1845
1846         bool hidden = !(*iter)[group_columns.visible];
1847
1848         if (hidden != group->is_hidden ()) {
1849                 group->set_hidden (hidden, this);
1850         }
1851 }
1852
1853 /** Called when a group model row is deleted, but also when the model is
1854  *  reordered by a user drag-and-drop; the latter is what we are
1855  *  interested in here.
1856  */
1857 void
1858 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1859 {
1860         if (_in_group_rebuild_or_clear) {
1861                 return;
1862         }
1863
1864         /* Re-write the session's route group list so that the new order is preserved */
1865
1866         list<RouteGroup*> new_list;
1867
1868         Gtk::TreeModel::Children children = group_model->children();
1869         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1870                 RouteGroup* g = (*i)[group_columns.group];
1871                 if (g) {
1872                         new_list.push_back (g);
1873                 }
1874         }
1875
1876         _session->reorder_route_groups (new_list);
1877 }
1878
1879
1880 void
1881 Mixer_UI::add_route_group (RouteGroup* group)
1882 {
1883         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1884         bool focus = false;
1885
1886         in_group_row_change = true;
1887
1888         TreeModel::Row row = *(group_model->append());
1889         row[group_columns.visible] = !group->is_hidden ();
1890         row[group_columns.group] = group;
1891         if (!group->name().empty()) {
1892                 row[group_columns.text] = group->name();
1893         } else {
1894                 row[group_columns.text] = _("unnamed");
1895                 focus = true;
1896         }
1897
1898         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1899
1900         if (focus) {
1901                 TreeViewColumn* col = group_display.get_column (0);
1902                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
1903                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1904         }
1905
1906         _group_tabs->set_dirty ();
1907
1908         in_group_row_change = false;
1909 }
1910
1911 bool
1912 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1913 {
1914         using namespace Menu_Helpers;
1915
1916         if (Keyboard::is_context_menu_event (ev)) {
1917                 ARDOUR_UI::instance()->add_route ();
1918                 return true;
1919         }
1920
1921         return false;
1922 }
1923
1924 void
1925 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
1926 {
1927         printf ("Mixer_UI::scroller_drag_data_received\n");
1928         if (data.get_target() != "PluginFavoritePtr") {
1929                 context->drag_finish (false, false, time);
1930                 return;
1931         }
1932
1933         const void * d = data.get_data();
1934         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
1935
1936         PluginPresetList nfos;
1937         TreeView* source;
1938         tv->get_object_drag_data (nfos, &source);
1939
1940         Route::ProcessorList pl;
1941         bool ok = false;
1942
1943         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1944                 PluginPresetPtr ppp = (*i);
1945                 PluginInfoPtr pip = ppp->_pip;
1946                 if (!pip->is_instrument ()) {
1947                         continue;
1948                 }
1949                 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);
1950                 ok = true;
1951         }
1952
1953         context->drag_finish (ok, false, time);
1954 }
1955
1956 void
1957 Mixer_UI::set_strip_width (Width w, bool save)
1958 {
1959         _strip_width = w;
1960
1961         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1962                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1963         }
1964 }
1965
1966
1967 struct PluginStateSorter {
1968 public:
1969         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
1970                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
1971                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
1972                 if (aiter != _user.end() && biter != _user.end()) {
1973                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
1974                 }
1975                 if (aiter != _user.end()) {
1976                         return true;
1977                 }
1978                 if (biter != _user.end()) {
1979                         return false;
1980                 }
1981                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
1982         }
1983
1984         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
1985 private:
1986         std::list<std::string> _user;
1987 };
1988
1989 int
1990 Mixer_UI::set_state (const XMLNode& node, int version)
1991 {
1992         XMLProperty const * prop;
1993         LocaleGuard lg;
1994
1995         Tabbable::set_state (node, version);
1996
1997         if ((prop = node.property ("narrow-strips"))) {
1998                 if (string_is_affirmative (prop->value())) {
1999                         set_strip_width (Narrow);
2000                 } else {
2001                         set_strip_width (Wide);
2002                 }
2003         }
2004
2005         if ((prop = node.property ("show-mixer"))) {
2006                 if (string_is_affirmative (prop->value())) {
2007                        _visible = true;
2008                 }
2009         }
2010
2011         if ((prop = node.property ("maximised"))) {
2012                 bool yn = string_is_affirmative (prop->value());
2013                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
2014                 assert (act);
2015                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2016                 bool fs = tact && tact->get_active();
2017                 if (yn ^ fs) {
2018                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
2019                 }
2020         }
2021
2022         if ((prop = node.property ("show-mixer-list"))) {
2023                 bool yn = string_is_affirmative (prop->value());
2024                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
2025                 assert (act);
2026                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2027
2028                 /* do it twice to force the change */
2029                 tact->set_active (!yn);
2030                 tact->set_active (yn);
2031         }
2032
2033
2034         XMLNode* plugin_order;
2035         if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
2036                 store_current_favorite_order ();
2037                 std::list<string> order;
2038                 const XMLNodeList& kids = plugin_order->children("PluginInfo");
2039                 XMLNodeConstIterator i;
2040                 for (i = kids.begin(); i != kids.end(); ++i) {
2041                         if ((prop = (*i)->property ("unique-id"))) {
2042                                 std::string unique_id = prop->value();
2043                                 order.push_back (unique_id);
2044                                 if ((prop = (*i)->property ("expanded"))) {
2045                                         favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
2046                                 }
2047                         }
2048                 }
2049                 PluginStateSorter cmp (order);
2050                 favorite_order.sort (cmp);
2051                 sync_treeview_from_favorite_order ();
2052         }
2053         return 0;
2054 }
2055
2056 XMLNode&
2057 Mixer_UI::get_state ()
2058 {
2059         XMLNode* node = new XMLNode (X_("Mixer"));
2060         char buf[128];
2061         LocaleGuard lg;
2062
2063         node->add_child_nocopy (Tabbable::get_state());
2064
2065         snprintf(buf,sizeof(buf), "%f", rhs_pane1.get_divider());
2066         node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
2067         snprintf(buf,sizeof(buf), "%f", rhs_pane2.get_divider());
2068         node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
2069         snprintf(buf,sizeof(buf), "%f", list_hpane.get_divider());
2070         node->add_property(X_("mixer-list-hpane-pos"), string(buf));
2071         snprintf(buf,sizeof(buf), "%f", inner_pane.get_divider());
2072         node->add_property(X_("mixer-inner-pane-pos"), string(buf));
2073
2074         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
2075         node->add_property ("show-mixer", _visible ? "yes" : "no");
2076         node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
2077         node->add_property ("maximised", _maximised ? "yes" : "no");
2078
2079         store_current_favorite_order ();
2080         XMLNode* plugin_order = new XMLNode ("PluginOrder");
2081         int cnt = 0;
2082         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
2083                 XMLNode* p = new XMLNode ("PluginInfo");
2084                 p->add_property ("sort", cnt);
2085                 p->add_property ("unique-id", (*i)->unique_id);
2086                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
2087                         p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
2088                 }
2089                 plugin_order->add_child_nocopy (*p);
2090         }
2091         node->add_child_nocopy (*plugin_order);
2092
2093         return *node;
2094 }
2095
2096 void
2097 Mixer_UI::scroll_left ()
2098 {
2099         if (!scroller.get_hscrollbar()) return;
2100         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2101         int sc_w = scroller.get_width();
2102         int sp_w = strip_packer.get_width();
2103         if (sp_w <= sc_w) {
2104                 return;
2105         }
2106         int lp = adj->get_value();
2107         int lm = 0;
2108         using namespace Gtk::Box_Helpers;
2109         const BoxList& strips = strip_packer.children();
2110         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2111                 lm += i->get_widget()->get_width ();
2112                 if (lm >= lp) {
2113                         lm -= i->get_widget()->get_width ();
2114                         break;
2115                 }
2116         }
2117         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2118 }
2119
2120 void
2121 Mixer_UI::scroll_right ()
2122 {
2123         if (!scroller.get_hscrollbar()) return;
2124         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2125         int sc_w = scroller.get_width();
2126         int sp_w = strip_packer.get_width();
2127         if (sp_w <= sc_w) {
2128                 return;
2129         }
2130         int lp = adj->get_value();
2131         int lm = 0;
2132         using namespace Gtk::Box_Helpers;
2133         const BoxList& strips = strip_packer.children();
2134         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2135                 lm += i->get_widget()->get_width ();
2136                 if (lm > lp + 1) {
2137                         break;
2138                 }
2139         }
2140         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2141 }
2142
2143 bool
2144 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
2145 {
2146         switch (ev->direction) {
2147         case GDK_SCROLL_LEFT:
2148                 scroll_left ();
2149                 return true;
2150         case GDK_SCROLL_UP:
2151                 if (ev->state & Keyboard::TertiaryModifier) {
2152                         scroll_left ();
2153                         return true;
2154                 }
2155                 return false;
2156
2157         case GDK_SCROLL_RIGHT:
2158                 scroll_right ();
2159                 return true;
2160
2161         case GDK_SCROLL_DOWN:
2162                 if (ev->state & Keyboard::TertiaryModifier) {
2163                         scroll_right ();
2164                         return true;
2165                 }
2166                 return false;
2167         }
2168
2169         return false;
2170 }
2171
2172
2173 void
2174 Mixer_UI::parameter_changed (string const & p)
2175 {
2176         if (p == "show-group-tabs") {
2177                 bool const s = _session->config.get_show_group_tabs ();
2178                 if (s) {
2179                         _group_tabs->show ();
2180                 } else {
2181                         _group_tabs->hide ();
2182                 }
2183         } else if (p == "default-narrow_ms") {
2184                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2185                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2186                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2187                 }
2188         } else if (p == "use-monitor-bus") {
2189                 if (_session && !_session->monitor_out()) {
2190                         monitor_section_detached ();
2191                 }
2192         }
2193 }
2194
2195 void
2196 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2197 {
2198         g->set_active (a, this);
2199 }
2200
2201 PluginSelector*
2202 Mixer_UI::plugin_selector()
2203 {
2204 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2205         if (!_plugin_selector)
2206                 _plugin_selector = new PluginSelector (PluginManager::instance());
2207 #endif
2208
2209         return _plugin_selector;
2210 }
2211
2212 void
2213 Mixer_UI::setup_track_display ()
2214 {
2215         track_model = ListStore::create (stripable_columns);
2216         track_display.set_model (track_model);
2217         track_display.append_column (_("Show"), stripable_columns.visible);
2218         track_display.append_column (_("Strips"), stripable_columns.text);
2219         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2220         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2221         track_display.get_column (0)->set_expand(false);
2222         track_display.get_column (1)->set_expand(true);
2223         track_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2224         track_display.set_name (X_("EditGroupList"));
2225         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2226         track_display.set_reorderable (true);
2227         track_display.set_headers_visible (true);
2228         track_display.set_can_focus(false);
2229
2230         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2231         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2232
2233         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (0));
2234         track_list_visible_cell->property_activatable() = true;
2235         track_list_visible_cell->property_radio() = false;
2236         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2237
2238         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2239
2240         track_display_scroller.add (track_display);
2241         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2242
2243         VBox* v = manage (new VBox);
2244         v->show ();
2245         v->pack_start (track_display_scroller, true, true);
2246
2247         Button* b = manage (new Button);
2248         b->show ();
2249         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
2250         w->show ();
2251         b->add (*w);
2252
2253         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
2254
2255         v->pack_start (*b, false, false);
2256
2257         track_display_frame.set_name("BaseFrame");
2258         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2259         track_display_frame.add (*v);
2260
2261         track_display_scroller.show();
2262         track_display_frame.show();
2263         track_display.show();
2264 }
2265
2266 void
2267 Mixer_UI::new_track_or_bus ()
2268 {
2269         ARDOUR_UI::instance()->add_route ();
2270 }
2271
2272 void
2273 Mixer_UI::update_title ()
2274 {
2275         if (!own_window()) {
2276                 return;
2277         }
2278
2279         if (_session) {
2280                 string n;
2281
2282                 if (_session->snap_name() != _session->name()) {
2283                         n = _session->snap_name ();
2284                 } else {
2285                         n = _session->name ();
2286                 }
2287
2288                 if (_session->dirty ()) {
2289                         n = "*" + n;
2290                 }
2291
2292                 WindowTitle title (n);
2293                 title += S_("Window|Mixer");
2294                 title += Glib::get_application_name ();
2295                 own_window()->set_title (title.get_string());
2296
2297         } else {
2298
2299                 WindowTitle title (S_("Window|Mixer"));
2300                 title += Glib::get_application_name ();
2301                 own_window()->set_title (title.get_string());
2302         }
2303 }
2304
2305 MixerStrip*
2306 Mixer_UI::strip_by_x (int x)
2307 {
2308         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2309                 int x1, x2, y;
2310
2311                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2312                 x2 = x1 + (*i)->get_width();
2313
2314                 if (x >= x1 && x <= x2) {
2315                         return (*i);
2316                 }
2317         }
2318
2319         return 0;
2320 }
2321
2322 void
2323 Mixer_UI::set_axis_targets_for_operation ()
2324 {
2325         _axis_targets.clear ();
2326
2327         if (!_selection.empty()) {
2328                 _axis_targets = _selection.axes;
2329                 return;
2330         }
2331
2332 //  removed "implicit" selections of strips, after discussion on IRC
2333
2334 }
2335
2336 void
2337 Mixer_UI::monitor_section_going_away ()
2338 {
2339         if (_monitor_section) {
2340                 monitor_section_detached ();
2341                 out_packer.remove (_monitor_section->tearoff());
2342                 _monitor_section->set_session (0);
2343                 delete _monitor_section;
2344                 _monitor_section = 0;
2345         }
2346 }
2347
2348 void
2349 Mixer_UI::toggle_midi_input_active (bool flip_others)
2350 {
2351         boost::shared_ptr<RouteList> rl (new RouteList);
2352         bool onoff = false;
2353
2354         set_axis_targets_for_operation ();
2355
2356         for (AxisViewSelection::iterator r = _axis_targets.begin(); r != _axis_targets.end(); ++r) {
2357                 boost::shared_ptr<MidiTrack> mt = boost::dynamic_pointer_cast<MidiTrack> ((*r)->stripable());
2358
2359                 if (mt) {
2360                         rl->push_back (mt);
2361                         onoff = !mt->input_active();
2362                 }
2363         }
2364
2365         _session->set_exclusive_input_active (rl, onoff, flip_others);
2366 }
2367
2368 void
2369 Mixer_UI::maximise_mixer_space ()
2370 {
2371         if (!own_window()) {
2372                 return;
2373         }
2374
2375         if (_maximised) {
2376                 return;
2377         }
2378
2379         _window->fullscreen ();
2380         _maximised = true;
2381 }
2382
2383 void
2384 Mixer_UI::restore_mixer_space ()
2385 {
2386         if (!own_window()) {
2387                 return;
2388         }
2389
2390         if (!_maximised) {
2391                 return;
2392         }
2393
2394         own_window()->unfullscreen();
2395         _maximised = false;
2396 }
2397
2398 void
2399 Mixer_UI::monitor_section_attached ()
2400 {
2401         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2402         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2403         act->set_sensitive (true);
2404         tact->set_active ();
2405 }
2406
2407 void
2408 Mixer_UI::monitor_section_detached ()
2409 {
2410         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2411         act->set_sensitive (false);
2412 }
2413
2414 void
2415 Mixer_UI::store_current_favorite_order ()
2416 {
2417         typedef Gtk::TreeModel::Children type_children;
2418         type_children children = favorite_plugins_model->children();
2419         favorite_order.clear();
2420         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2421         {
2422                 Gtk::TreeModel::Row row = *iter;
2423                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2424                 favorite_order.push_back (ppp->_pip);
2425                 std::string name = row[favorite_plugins_columns.name];
2426                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2427         }
2428 }
2429
2430 void
2431 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2432 {
2433         Gtk::TreeModel::Row row = *iter;
2434         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2435         assert (ppp);
2436         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2437 }
2438
2439 void
2440 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2441 {
2442         PluginManager& manager (PluginManager::instance());
2443         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2444                 if (manager.get_status (*i) != PluginManager::Favorite) {
2445                         continue;
2446                 }
2447                 result.push_back (*i);
2448         }
2449 }
2450
2451 struct PluginCustomSorter {
2452 public:
2453         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2454                 PluginInfoList::const_iterator aiter = _user.begin();
2455                 PluginInfoList::const_iterator biter = _user.begin();
2456                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2457                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2458
2459                 if (aiter != _user.end() && biter != _user.end()) {
2460                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2461                 }
2462                 if (aiter != _user.end()) {
2463                         return true;
2464                 }
2465                 if (biter != _user.end()) {
2466                         return false;
2467                 }
2468                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2469         }
2470         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2471 private:
2472         PluginInfoList _user;
2473 };
2474
2475 void
2476 Mixer_UI::refill_favorite_plugins ()
2477 {
2478         PluginInfoList plugs;
2479         PluginManager& mgr (PluginManager::instance());
2480
2481 #ifdef LV2_SUPPORT
2482         refiller (plugs, mgr.lv2_plugin_info ());
2483 #endif
2484 #ifdef WINDOWS_VST_SUPPORT
2485         refiller (plugs, mgr.windows_vst_plugin_info ());
2486 #endif
2487 #ifdef LXVST_SUPPORT
2488         refiller (plugs, mgr.lxvst_plugin_info ());
2489 #endif
2490 #ifdef MACVST_SUPPORT
2491         refiller (plugs, mgr.mac_vst_plugin_info ());
2492 #endif
2493 #ifdef AUDIOUNIT_SUPPORT
2494         refiller (plugs, mgr.au_plugin_info ());
2495 #endif
2496         refiller (plugs, mgr.ladspa_plugin_info ());
2497         refiller (plugs, mgr.lua_plugin_info ());
2498
2499         store_current_favorite_order ();
2500
2501         PluginCustomSorter cmp (favorite_order);
2502         plugs.sort (cmp);
2503
2504         favorite_order = plugs;
2505
2506         sync_treeview_from_favorite_order ();
2507 }
2508
2509 void
2510 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2511 {
2512         TreeIter iter;
2513         if (!(iter = favorite_plugins_model->get_iter (path))) {
2514                 return;
2515         }
2516         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2517         if (!ppp) {
2518                 return;
2519         }
2520         PluginInfoPtr pip = ppp->_pip;
2521         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2522                 if (favorite_ui_state[pip->unique_id]) {
2523                         favorite_plugins_display.expand_row (path, true);
2524                 }
2525         }
2526 }
2527
2528 void
2529 Mixer_UI::sync_treeview_from_favorite_order ()
2530 {
2531         favorite_plugins_model->clear ();
2532         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2533                 PluginInfoPtr pip = (*i);
2534
2535                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2536                 newrow[favorite_plugins_columns.name] = (*i)->name;
2537                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2538                 if (!_session) {
2539                         continue;
2540                 }
2541
2542                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2543                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2544                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2545                         child_row[favorite_plugins_columns.name] = (*j).label;
2546                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2547                 }
2548                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2549                         if (favorite_ui_state[pip->unique_id]) {
2550                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2551                         }
2552                 }
2553         }
2554 }
2555
2556 void
2557 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2558 {
2559         using namespace Gtk::Menu_Helpers;
2560
2561         Gtk::Menu* m = manage (new Menu);
2562         MenuList& items = m->items ();
2563
2564         if (_selection.axes.empty()) {
2565                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
2566         } else {
2567                 items.push_back (MenuElem (_("Add at the top"),
2568                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
2569                 items.push_back (MenuElem (_("Add Pre-Fader"),
2570                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
2571                 items.push_back (MenuElem (_("Add Post-Fader"),
2572                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
2573                 items.push_back (MenuElem (_("Add at the end"),
2574                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
2575         }
2576
2577         items.push_back (SeparatorElem());
2578
2579         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
2580
2581         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2582         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
2583                 // we cannot currently delete AU presets
2584                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
2585                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
2586                 }
2587         }
2588
2589         m->popup (ev->button, ev->time);
2590 }
2591
2592 bool
2593 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
2594 {
2595         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
2596                 TreeModel::Path path;
2597                 TreeViewColumn* column;
2598                 int cellx, celly;
2599                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
2600                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2601                         if (selection) {
2602                                 selection->unselect_all();
2603                                 selection->select(path);
2604                         }
2605                 }
2606                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
2607                 if (ppp) {
2608                         popup_note_context_menu (ev);
2609                 }
2610         }
2611         return false;
2612 }
2613
2614
2615 PluginPresetPtr
2616 Mixer_UI::selected_plugin ()
2617 {
2618         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2619         if (!selection) {
2620                 return PluginPresetPtr();
2621         }
2622         Gtk::TreeModel::iterator iter = selection->get_selected();
2623         if (!iter) {
2624                 return PluginPresetPtr();
2625         }
2626         return (*iter)[favorite_plugins_columns.plugin];
2627 }
2628
2629 void
2630 Mixer_UI::add_selected_processor (ProcessorPosition pos)
2631 {
2632         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2633         if (ppp) {
2634                 add_favorite_processor (ppp, pos);
2635         }
2636 }
2637
2638 void
2639 Mixer_UI::delete_selected_preset ()
2640 {
2641         if (!_session) {
2642                 return;
2643         }
2644         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2645         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
2646                 return;
2647         }
2648         PluginPtr plugin = ppp->_pip->load (*_session);
2649         plugin->get_presets();
2650         plugin->remove_preset (ppp->_preset.label);
2651 }
2652
2653 void
2654 Mixer_UI::remove_selected_from_favorites ()
2655 {
2656         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2657         if (!ppp) {
2658                 return;
2659         }
2660         PluginManager::PluginStatusType status = PluginManager::Normal;
2661         PluginManager& manager (PluginManager::instance());
2662
2663         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2664         manager.save_statuses ();
2665 }
2666
2667 void
2668 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
2669 {
2670         TreeIter iter;
2671         if (!(iter = favorite_plugins_model->get_iter (path))) {
2672                 return;
2673         }
2674         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2675         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
2676 }
2677
2678 void
2679 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
2680 {
2681         if (!_session || _selection.axes.empty()) {
2682                 return;
2683         }
2684
2685         PluginInfoPtr pip = ppp->_pip;
2686         for (AxisViewSelection::iterator i = _selection.axes.begin(); i != _selection.axes.end(); ++i) {
2687                 boost::shared_ptr<ARDOUR::Route> rt = boost::dynamic_pointer_cast<ARDOUR::Route> ((*i)->stripable());
2688
2689                 if (!rt) {
2690                         continue;
2691                 }
2692
2693                 PluginPtr p = pip->load (*_session);
2694
2695                 if (!p) {
2696                         continue;
2697                 }
2698
2699                 if (ppp->_preset.valid) {
2700                         p->load_preset (ppp->_preset);
2701                 }
2702
2703                 Route::ProcessorStreams err;
2704                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2705
2706                 switch (pos) {
2707                         case AddTop:
2708                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
2709                                 break;
2710                         case AddPreFader:
2711                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
2712                                 break;
2713                         case AddPostFader:
2714                                 {
2715                                         int idx = 0;
2716                                         int pos = 0;
2717                                         for (;;++idx) {
2718                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
2719                                                 if (!np) {
2720                                                         break;
2721                                                 }
2722                                                 if (!np->display_to_user()) {
2723                                                         continue;
2724                                                 }
2725                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
2726                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
2727                                                         break;
2728                                                 }
2729                                                 ++pos;
2730                                         }
2731                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
2732                                 }
2733                                 break;
2734                         case AddBottom:
2735                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
2736                                 break;
2737                 }
2738         }
2739 }
2740
2741 bool
2742 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
2743 {
2744         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
2745                 return false;
2746         }
2747
2748         // only allow to re-order top-level items
2749         TreePath src;
2750         if (TreePath::get_from_selection_data (data, src)) {
2751                 if (src.up() && src.up()) {
2752                         return false;
2753                 }
2754         }
2755
2756         // don't allow to drop as child-rows.
2757         Gtk::TreeModel::Path _dest = dest; // un const
2758         const bool is_child = _dest.up (); // explicit bool for clang
2759         if (!is_child || _dest.empty ()) {
2760                 return true;
2761         }
2762         return false;
2763 }
2764
2765 void
2766 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
2767 {
2768         if (data.get_target() != "PluginPresetPtr") {
2769                 return;
2770         }
2771         if (data.get_length() != sizeof (PluginPresetPtr)) {
2772                 return;
2773         }
2774         const void *d = data.get_data();
2775         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
2776
2777         PluginManager::PluginStatusType status = PluginManager::Favorite;
2778         PluginManager& manager (PluginManager::instance());
2779
2780         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2781         manager.save_statuses ();
2782 }
2783
2784 void
2785 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
2786 {
2787         /* call protected MixerActor:: method */
2788         vca_assign (vca);
2789 }
2790
2791 void
2792 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
2793 {
2794         /* call protected MixerActor:: method */
2795         vca_unassign (vca);
2796 }
2797
2798 void
2799 Mixer_UI::show_vca_slaves (boost::shared_ptr<VCA> vca)
2800 {
2801         boost::shared_ptr<VCA> v = spilled_vca.lock();
2802         if (v != vca) {
2803                 spilled_vca = vca;
2804                 show_vca_change (vca); /* EMIT SIGNAL */
2805                 if (vca) {
2806                         _group_tabs->hide ();
2807                 } else {
2808                         _group_tabs->show ();
2809                 }
2810                 redisplay_track_list ();
2811         }
2812 }
2813
2814 bool
2815 Mixer_UI::showing_vca_slaves_for (boost::shared_ptr<VCA> vca) const
2816 {
2817        return vca == spilled_vca.lock();
2818 }
2819
2820 void
2821 Mixer_UI::register_actions ()
2822 {
2823         Glib::RefPtr<ActionGroup> group = myactions.create_action_group (X_("Mixer"));
2824
2825         myactions.register_action (group, "solo", _("Toggle Solo on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::solo_action));
2826         myactions.register_action (group, "mute", _("Toggle Mute on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::mute_action));
2827         myactions.register_action (group, "recenable", _("Toggle Rec-enable on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::rec_enable_action));
2828         myactions.register_action (group, "increment-gain", _("Decrease Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_up_action));
2829         myactions.register_action (group, "decrement-gain", _("Increase Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_down_action));
2830         myactions.register_action (group, "unity-gain", _("Set Gain to 0dB on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::unity_gain_action));
2831
2832
2833         myactions.register_action (group, "copy-processors", _("Copy Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::copy_processors));
2834         myactions.register_action (group, "cut-processors", _("Cut Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::cut_processors));
2835         myactions.register_action (group, "paste-processors", _("Paste Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::paste_processors));
2836         myactions.register_action (group, "delete-processors", _("Delete Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::delete_processors));
2837         myactions.register_action (group, "select-all-processors", _("Select All (visible) Processors"), sigc::mem_fun (*this, &Mixer_UI::select_all_processors));
2838         myactions.register_action (group, "toggle-processors", _("Toggle Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::toggle_processors));
2839         myactions.register_action (group, "ab-plugins", _("Toggle Selected Plugins"), sigc::mem_fun (*this, &Mixer_UI::ab_plugins));
2840         myactions.register_action (group, "select-none", _("Deselect all strips and processors"), sigc::mem_fun (*this, &Mixer_UI::select_none));
2841
2842         myactions.register_action (group, "scroll-left", _("Scroll Mixer Window to the left"), sigc::mem_fun (*this, &Mixer_UI::scroll_left));
2843         myactions.register_action (group, "scroll-right", _("Scroll Mixer Window to the right"), sigc::mem_fun (*this, &Mixer_UI::scroll_right));
2844
2845         myactions.register_action (group, "toggle-midi-input-active", _("Toggle MIDI Input Active for Mixer-Selected Tracks/Busses"),
2846                                    sigc::bind (sigc::mem_fun (*this, &Mixer_UI::toggle_midi_input_active), false));
2847 }
2848
2849 void
2850 Mixer_UI::load_bindings ()
2851 {
2852         bindings = Bindings::get_bindings (X_("Mixer"), myactions);
2853 }
2854
2855 template<class T> void
2856 Mixer_UI::control_action (boost::shared_ptr<T> (Stripable::*get_control)() const)
2857 {
2858         boost::shared_ptr<ControlList> cl (new ControlList);
2859         boost::shared_ptr<AutomationControl> ac;
2860         bool val = false;
2861         bool have_val = false;
2862
2863         set_axis_targets_for_operation ();
2864
2865         BOOST_FOREACH(AxisView* r, _axis_targets) {
2866                 boost::shared_ptr<Stripable> s = r->stripable();
2867                 if (s) {
2868                         ac = (s.get()->*get_control)();
2869                         if (ac) {
2870                                 cl->push_back (ac);
2871                                 if (!have_val) {
2872                                         val = !ac->get_value();
2873                                         have_val = true;
2874                                 }
2875                         }
2876                 }
2877         }
2878
2879         _session->set_controls (cl,  val, Controllable::UseGroup);
2880 }
2881
2882 void
2883 Mixer_UI::solo_action ()
2884 {
2885         control_action (&Stripable::solo_control);
2886 }
2887
2888 void
2889 Mixer_UI::mute_action ()
2890 {
2891         control_action (&Stripable::mute_control);
2892 }
2893
2894 void
2895 Mixer_UI::rec_enable_action ()
2896 {
2897         control_action (&Stripable::rec_enable_control);
2898 }
2899
2900 void
2901 Mixer_UI::step_gain_up_action ()
2902 {
2903         set_axis_targets_for_operation ();
2904
2905         BOOST_FOREACH(AxisView* r, _axis_targets) {
2906                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2907                 if (ms) {
2908                         ms->step_gain_up ();
2909                 }
2910         }
2911 }
2912
2913 void
2914 Mixer_UI::step_gain_down_action ()
2915 {
2916         set_axis_targets_for_operation ();
2917
2918         BOOST_FOREACH(AxisView* r, _axis_targets) {
2919                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2920                 if (ms) {
2921                         ms->step_gain_down ();
2922                 }
2923         }
2924 }
2925
2926 void
2927 Mixer_UI::unity_gain_action ()
2928 {
2929         set_axis_targets_for_operation ();
2930
2931         BOOST_FOREACH(AxisView* r, _axis_targets) {
2932                 boost::shared_ptr<Stripable> s = r->stripable();
2933                 if (s) {
2934                         boost::shared_ptr<AutomationControl> ac = s->gain_control();
2935                         if (ac) {
2936                                 ac->set_value (1.0, Controllable::UseGroup);
2937                         }
2938                 }
2939         }
2940 }
2941
2942 void
2943 Mixer_UI::copy_processors ()
2944 {
2945         set_axis_targets_for_operation ();
2946
2947         BOOST_FOREACH(AxisView* r, _axis_targets) {
2948                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2949                 if (ms) {
2950                         ms->copy_processors ();
2951                 }
2952         }
2953 }
2954 void
2955 Mixer_UI::cut_processors ()
2956 {
2957         set_axis_targets_for_operation ();
2958
2959         BOOST_FOREACH(AxisView* r, _axis_targets) {
2960                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2961                 if (ms) {
2962                         ms->cut_processors ();
2963                 }
2964         }
2965 }
2966 void
2967 Mixer_UI::paste_processors ()
2968 {
2969         set_axis_targets_for_operation ();
2970
2971         BOOST_FOREACH(AxisView* r, _axis_targets) {
2972                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2973                 if (ms) {
2974                         ms->paste_processors ();
2975                 }
2976         }
2977 }
2978 void
2979 Mixer_UI::select_all_processors ()
2980 {
2981         set_axis_targets_for_operation ();
2982
2983         BOOST_FOREACH(AxisView* r, _axis_targets) {
2984                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2985                 if (ms) {
2986                         ms->select_all_processors ();
2987                 }
2988         }
2989 }
2990 void
2991 Mixer_UI::toggle_processors ()
2992 {
2993         set_axis_targets_for_operation ();
2994
2995         BOOST_FOREACH(AxisView* r, _axis_targets) {
2996                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2997                 if (ms) {
2998                         ms->toggle_processors ();
2999                 }
3000         }
3001 }
3002 void
3003 Mixer_UI::ab_plugins ()
3004 {
3005         set_axis_targets_for_operation ();
3006
3007         BOOST_FOREACH(AxisView* r, _axis_targets) {
3008                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3009                 if (ms) {
3010                         ms->ab_plugins ();
3011                 }
3012         }
3013 }
3014
3015 void
3016 Mixer_UI::vca_assign (boost::shared_ptr<VCA> vca)
3017 {
3018         set_axis_targets_for_operation ();
3019 #if 0
3020         BOOST_FOREACH(AxisView* r, _axis_targets) {
3021                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3022                 if (ms) {
3023                         ms->vca_assign (vca);
3024                 }
3025         }
3026 #endif
3027 }
3028
3029 void
3030 Mixer_UI::vca_unassign (boost::shared_ptr<VCA> vca)
3031 {
3032         set_axis_targets_for_operation ();
3033 #if 0
3034         BOOST_FOREACH(AxisView* r, _axis_targets) {
3035                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3036                 if (ms) {
3037                         ms->vca_unassign (vca);
3038                 }
3039         }
3040 #endif
3041 }