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         bool found = false;
1520         int x0 = 0;
1521         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
1522                 if ((*i)->route() == s) {
1523                         int y;
1524                         found = true;
1525                         (*i)->translate_coordinates (strip_packer, 0, 0, x0, y);
1526                         break;
1527                 }
1528         }
1529         if (!found) {
1530                 return;
1531         }
1532
1533         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1534         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), x0 - 1.0)));
1535 }
1536
1537 void
1538 Mixer_UI::build_track_menu ()
1539 {
1540         using namespace Menu_Helpers;
1541         using namespace Gtk;
1542
1543         track_menu = new Menu;
1544         track_menu->set_name ("ArdourContextMenu");
1545         MenuList& items = track_menu->items();
1546
1547         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1548         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1549         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1550         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1551         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1552         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1553         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1554         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1555
1556 }
1557
1558 void
1559 Mixer_UI::stripable_property_changed (const PropertyChange& what_changed, boost::weak_ptr<Stripable> ws)
1560 {
1561         if (!what_changed.contains (ARDOUR::Properties::hidden) && !what_changed.contains (ARDOUR::Properties::name)) {
1562                 return;
1563         }
1564
1565         boost::shared_ptr<Stripable> s = ws.lock ();
1566
1567         if (!s) {
1568                 return;
1569         }
1570
1571         TreeModel::Children rows = track_model->children();
1572         TreeModel::Children::iterator i;
1573
1574         for (i = rows.begin(); i != rows.end(); ++i) {
1575                 boost::shared_ptr<Stripable> ss = (*i)[stripable_columns.stripable];
1576
1577                 if (s == ss) {
1578
1579                         if (what_changed.contains (ARDOUR::Properties::name)) {
1580                                 (*i)[stripable_columns.text] = s->name();
1581                         }
1582
1583                         if (what_changed.contains (ARDOUR::Properties::hidden)) {
1584                                 (*i)[stripable_columns.visible] = !s->presentation_info().hidden();
1585                                 redisplay_track_list ();
1586                         }
1587
1588                         return;
1589                 }
1590         }
1591
1592         error << _("track display list item for renamed strip not found!") << endmsg;
1593 }
1594
1595 bool
1596 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1597 {
1598         TreeModel::Path path;
1599         TreeViewColumn* column;
1600         int cellx;
1601         int celly;
1602
1603         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1604                 _group_tabs->get_menu(0)->popup (1, ev->time);
1605                 return true;
1606         }
1607
1608         TreeIter iter = group_model->get_iter (path);
1609         if (!iter) {
1610                 _group_tabs->get_menu(0)->popup (1, ev->time);
1611                 return true;
1612         }
1613
1614         RouteGroup* group = (*iter)[group_columns.group];
1615
1616         if (Keyboard::is_context_menu_event (ev)) {
1617                 _group_tabs->get_menu(group)->popup (1, ev->time);
1618                 return true;
1619         }
1620
1621         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1622         case 1:
1623                 if (Keyboard::is_edit_event (ev)) {
1624                         if (group) {
1625                                 // edit_route_group (group);
1626 #ifdef __APPLE__
1627                                 group_display.queue_draw();
1628 #endif
1629                                 return true;
1630                         }
1631                 }
1632                 break;
1633
1634         case 0:
1635         {
1636                 bool visible = (*iter)[group_columns.visible];
1637                 (*iter)[group_columns.visible] = !visible;
1638 #ifdef __APPLE__
1639                 group_display.queue_draw();
1640 #endif
1641                 return true;
1642         }
1643
1644         default:
1645                 break;
1646         }
1647
1648         return false;
1649  }
1650
1651 void
1652 Mixer_UI::activate_all_route_groups ()
1653 {
1654         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1655 }
1656
1657 void
1658 Mixer_UI::disable_all_route_groups ()
1659 {
1660         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1661 }
1662
1663 void
1664 Mixer_UI::route_groups_changed ()
1665 {
1666         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1667
1668         _in_group_rebuild_or_clear = true;
1669
1670         /* just rebuild the while thing */
1671
1672         group_model->clear ();
1673
1674 #if 0
1675         /* this is currently not used,
1676          * Mixer_UI::group_display_button_press() has a case for it,
1677          * and a commented edit_route_group() but that's n/a since 2011.
1678          *
1679          * This code is left as reminder that
1680          * row[group_columns.group] = 0 has special meaning.
1681          */
1682         {
1683                 TreeModel::Row row;
1684                 row = *(group_model->append());
1685                 row[group_columns.visible] = true;
1686                 row[group_columns.text] = (_("-all-"));
1687                 row[group_columns.group] = 0;
1688         }
1689 #endif
1690
1691         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1692
1693         _group_tabs->set_dirty ();
1694         _in_group_rebuild_or_clear = false;
1695 }
1696
1697 void
1698 Mixer_UI::new_route_group ()
1699 {
1700         _group_tabs->run_new_group_dialog (0, false);
1701 }
1702
1703 void
1704 Mixer_UI::remove_selected_route_group ()
1705 {
1706         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1707         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1708
1709         if (rows.empty()) {
1710                 return;
1711         }
1712
1713         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1714         TreeIter iter;
1715
1716         /* selection mode is single, so rows.begin() is it */
1717
1718         if ((iter = group_model->get_iter (*i))) {
1719
1720                 RouteGroup* rg = (*iter)[group_columns.group];
1721
1722                 if (rg) {
1723                         _session->remove_route_group (*rg);
1724                 }
1725         }
1726 }
1727
1728 void
1729 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1730 {
1731         if (in_group_row_change) {
1732                 return;
1733         }
1734
1735         /* force an update of any mixer strips that are using this group,
1736            otherwise mix group names don't change in mixer strips
1737         */
1738
1739         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1740                 if ((*i)->route_group() == group) {
1741                         (*i)->route_group_changed();
1742                 }
1743         }
1744
1745         TreeModel::iterator i;
1746         TreeModel::Children rows = group_model->children();
1747         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1748
1749         in_group_row_change = true;
1750
1751         for (i = rows.begin(); i != rows.end(); ++i) {
1752                 if ((*i)[group_columns.group] == group) {
1753                         (*i)[group_columns.visible] = !group->is_hidden ();
1754                         (*i)[group_columns.text] = group->name ();
1755                         break;
1756                 }
1757         }
1758
1759         in_group_row_change = false;
1760
1761         if (change.contains (Properties::name)) {
1762                 _group_tabs->set_dirty ();
1763         }
1764
1765         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1766                 if ((*j)->route_group() == group) {
1767                         if (group->is_hidden ()) {
1768                                 hide_strip (*j);
1769                         } else {
1770                                 show_strip (*j);
1771                         }
1772                 }
1773         }
1774 }
1775
1776 void
1777 Mixer_UI::show_mixer_list (bool yn)
1778 {
1779         if (yn) {
1780                 list_vpacker.show ();
1781         } else {
1782                 list_vpacker.hide ();
1783         }
1784
1785         _show_mixer_list = yn;
1786 }
1787
1788 void
1789 Mixer_UI::show_monitor_section (bool yn)
1790 {
1791         if (!monitor_section()) {
1792                 return;
1793         }
1794         if (monitor_section()->tearoff().torn_off()) {
1795                 return;
1796         }
1797
1798         if (yn) {
1799                 monitor_section()->tearoff().show();
1800         } else {
1801                 monitor_section()->tearoff().hide();
1802         }
1803 }
1804
1805 void
1806 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1807 {
1808         RouteGroup* group;
1809         TreeIter iter;
1810
1811         if ((iter = group_model->get_iter (path))) {
1812
1813                 if ((group = (*iter)[group_columns.group]) == 0) {
1814                         return;
1815                 }
1816
1817                 if (new_text != group->name()) {
1818                         group->set_name (new_text);
1819                 }
1820         }
1821 }
1822
1823 void
1824 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1825 {
1826         RouteGroup* group;
1827
1828         if (in_group_row_change) {
1829                 return;
1830         }
1831
1832         if ((group = (*iter)[group_columns.group]) == 0) {
1833                 return;
1834         }
1835
1836         std::string name = (*iter)[group_columns.text];
1837
1838         if (name != group->name()) {
1839                 group->set_name (name);
1840         }
1841
1842         bool hidden = !(*iter)[group_columns.visible];
1843
1844         if (hidden != group->is_hidden ()) {
1845                 group->set_hidden (hidden, this);
1846         }
1847 }
1848
1849 /** Called when a group model row is deleted, but also when the model is
1850  *  reordered by a user drag-and-drop; the latter is what we are
1851  *  interested in here.
1852  */
1853 void
1854 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1855 {
1856         if (_in_group_rebuild_or_clear) {
1857                 return;
1858         }
1859
1860         /* Re-write the session's route group list so that the new order is preserved */
1861
1862         list<RouteGroup*> new_list;
1863
1864         Gtk::TreeModel::Children children = group_model->children();
1865         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1866                 RouteGroup* g = (*i)[group_columns.group];
1867                 if (g) {
1868                         new_list.push_back (g);
1869                 }
1870         }
1871
1872         _session->reorder_route_groups (new_list);
1873 }
1874
1875
1876 void
1877 Mixer_UI::add_route_group (RouteGroup* group)
1878 {
1879         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1880         bool focus = false;
1881
1882         in_group_row_change = true;
1883
1884         TreeModel::Row row = *(group_model->append());
1885         row[group_columns.visible] = !group->is_hidden ();
1886         row[group_columns.group] = group;
1887         if (!group->name().empty()) {
1888                 row[group_columns.text] = group->name();
1889         } else {
1890                 row[group_columns.text] = _("unnamed");
1891                 focus = true;
1892         }
1893
1894         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1895
1896         if (focus) {
1897                 TreeViewColumn* col = group_display.get_column (0);
1898                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
1899                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1900         }
1901
1902         _group_tabs->set_dirty ();
1903
1904         in_group_row_change = false;
1905 }
1906
1907 bool
1908 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1909 {
1910         using namespace Menu_Helpers;
1911
1912         if (Keyboard::is_context_menu_event (ev)) {
1913                 ARDOUR_UI::instance()->add_route ();
1914                 return true;
1915         }
1916
1917         return false;
1918 }
1919
1920 void
1921 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
1922 {
1923         printf ("Mixer_UI::scroller_drag_data_received\n");
1924         if (data.get_target() != "PluginFavoritePtr") {
1925                 context->drag_finish (false, false, time);
1926                 return;
1927         }
1928
1929         const void * d = data.get_data();
1930         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
1931
1932         PluginPresetList nfos;
1933         TreeView* source;
1934         tv->get_object_drag_data (nfos, &source);
1935
1936         Route::ProcessorList pl;
1937         bool ok = false;
1938
1939         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1940                 PluginPresetPtr ppp = (*i);
1941                 PluginInfoPtr pip = ppp->_pip;
1942                 if (!pip->is_instrument ()) {
1943                         continue;
1944                 }
1945                 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);
1946                 ok = true;
1947         }
1948
1949         context->drag_finish (ok, false, time);
1950 }
1951
1952 void
1953 Mixer_UI::set_strip_width (Width w, bool save)
1954 {
1955         _strip_width = w;
1956
1957         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1958                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1959         }
1960 }
1961
1962
1963 struct PluginStateSorter {
1964 public:
1965         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
1966                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
1967                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
1968                 if (aiter != _user.end() && biter != _user.end()) {
1969                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
1970                 }
1971                 if (aiter != _user.end()) {
1972                         return true;
1973                 }
1974                 if (biter != _user.end()) {
1975                         return false;
1976                 }
1977                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
1978         }
1979
1980         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
1981 private:
1982         std::list<std::string> _user;
1983 };
1984
1985 int
1986 Mixer_UI::set_state (const XMLNode& node, int version)
1987 {
1988         XMLProperty const * prop;
1989         LocaleGuard lg;
1990
1991         Tabbable::set_state (node, version);
1992
1993         if ((prop = node.property ("narrow-strips"))) {
1994                 if (string_is_affirmative (prop->value())) {
1995                         set_strip_width (Narrow);
1996                 } else {
1997                         set_strip_width (Wide);
1998                 }
1999         }
2000
2001         if ((prop = node.property ("show-mixer"))) {
2002                 if (string_is_affirmative (prop->value())) {
2003                        _visible = true;
2004                 }
2005         }
2006
2007         if ((prop = node.property ("maximised"))) {
2008                 bool yn = string_is_affirmative (prop->value());
2009                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
2010                 assert (act);
2011                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2012                 bool fs = tact && tact->get_active();
2013                 if (yn ^ fs) {
2014                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
2015                 }
2016         }
2017
2018         if ((prop = node.property ("show-mixer-list"))) {
2019                 bool yn = string_is_affirmative (prop->value());
2020                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
2021                 assert (act);
2022                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2023
2024                 /* do it twice to force the change */
2025                 tact->set_active (!yn);
2026                 tact->set_active (yn);
2027         }
2028
2029
2030         XMLNode* plugin_order;
2031         if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
2032                 store_current_favorite_order ();
2033                 std::list<string> order;
2034                 const XMLNodeList& kids = plugin_order->children("PluginInfo");
2035                 XMLNodeConstIterator i;
2036                 for (i = kids.begin(); i != kids.end(); ++i) {
2037                         if ((prop = (*i)->property ("unique-id"))) {
2038                                 std::string unique_id = prop->value();
2039                                 order.push_back (unique_id);
2040                                 if ((prop = (*i)->property ("expanded"))) {
2041                                         favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
2042                                 }
2043                         }
2044                 }
2045                 PluginStateSorter cmp (order);
2046                 favorite_order.sort (cmp);
2047                 sync_treeview_from_favorite_order ();
2048         }
2049         return 0;
2050 }
2051
2052 XMLNode&
2053 Mixer_UI::get_state ()
2054 {
2055         XMLNode* node = new XMLNode (X_("Mixer"));
2056         char buf[128];
2057         LocaleGuard lg;
2058
2059         node->add_child_nocopy (Tabbable::get_state());
2060
2061         snprintf(buf,sizeof(buf), "%f", rhs_pane1.get_divider());
2062         node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
2063         snprintf(buf,sizeof(buf), "%f", rhs_pane2.get_divider());
2064         node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
2065         snprintf(buf,sizeof(buf), "%f", list_hpane.get_divider());
2066         node->add_property(X_("mixer-list-hpane-pos"), string(buf));
2067         snprintf(buf,sizeof(buf), "%f", inner_pane.get_divider());
2068         node->add_property(X_("mixer-inner-pane-pos"), string(buf));
2069
2070         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
2071         node->add_property ("show-mixer", _visible ? "yes" : "no");
2072         node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
2073         node->add_property ("maximised", _maximised ? "yes" : "no");
2074
2075         store_current_favorite_order ();
2076         XMLNode* plugin_order = new XMLNode ("PluginOrder");
2077         int cnt = 0;
2078         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
2079                 XMLNode* p = new XMLNode ("PluginInfo");
2080                 p->add_property ("sort", cnt);
2081                 p->add_property ("unique-id", (*i)->unique_id);
2082                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
2083                         p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
2084                 }
2085                 plugin_order->add_child_nocopy (*p);
2086         }
2087         node->add_child_nocopy (*plugin_order);
2088
2089         return *node;
2090 }
2091
2092 void
2093 Mixer_UI::scroll_left ()
2094 {
2095         if (!scroller.get_hscrollbar()) return;
2096         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2097         int sc_w = scroller.get_width();
2098         int sp_w = strip_packer.get_width();
2099         if (sp_w <= sc_w) {
2100                 return;
2101         }
2102         int lp = adj->get_value();
2103         int lm = 0;
2104         using namespace Gtk::Box_Helpers;
2105         const BoxList& strips = strip_packer.children();
2106         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2107                 lm += i->get_widget()->get_width ();
2108                 if (lm >= lp) {
2109                         lm -= i->get_widget()->get_width ();
2110                         break;
2111                 }
2112         }
2113         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2114 }
2115
2116 void
2117 Mixer_UI::scroll_right ()
2118 {
2119         if (!scroller.get_hscrollbar()) return;
2120         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2121         int sc_w = scroller.get_width();
2122         int sp_w = strip_packer.get_width();
2123         if (sp_w <= sc_w) {
2124                 return;
2125         }
2126         int lp = adj->get_value();
2127         int lm = 0;
2128         using namespace Gtk::Box_Helpers;
2129         const BoxList& strips = strip_packer.children();
2130         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2131                 lm += i->get_widget()->get_width ();
2132                 if (lm > lp + 1) {
2133                         break;
2134                 }
2135         }
2136         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2137 }
2138
2139 bool
2140 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
2141 {
2142         switch (ev->direction) {
2143         case GDK_SCROLL_LEFT:
2144                 scroll_left ();
2145                 return true;
2146         case GDK_SCROLL_UP:
2147                 if (ev->state & Keyboard::TertiaryModifier) {
2148                         scroll_left ();
2149                         return true;
2150                 }
2151                 return false;
2152
2153         case GDK_SCROLL_RIGHT:
2154                 scroll_right ();
2155                 return true;
2156
2157         case GDK_SCROLL_DOWN:
2158                 if (ev->state & Keyboard::TertiaryModifier) {
2159                         scroll_right ();
2160                         return true;
2161                 }
2162                 return false;
2163         }
2164
2165         return false;
2166 }
2167
2168
2169 void
2170 Mixer_UI::parameter_changed (string const & p)
2171 {
2172         if (p == "show-group-tabs") {
2173                 bool const s = _session->config.get_show_group_tabs ();
2174                 if (s) {
2175                         _group_tabs->show ();
2176                 } else {
2177                         _group_tabs->hide ();
2178                 }
2179         } else if (p == "default-narrow_ms") {
2180                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2181                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2182                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2183                 }
2184         } else if (p == "use-monitor-bus") {
2185                 if (_session && !_session->monitor_out()) {
2186                         monitor_section_detached ();
2187                 }
2188         }
2189 }
2190
2191 void
2192 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2193 {
2194         g->set_active (a, this);
2195 }
2196
2197 PluginSelector*
2198 Mixer_UI::plugin_selector()
2199 {
2200 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2201         if (!_plugin_selector)
2202                 _plugin_selector = new PluginSelector (PluginManager::instance());
2203 #endif
2204
2205         return _plugin_selector;
2206 }
2207
2208 void
2209 Mixer_UI::setup_track_display ()
2210 {
2211         track_model = ListStore::create (stripable_columns);
2212         track_display.set_model (track_model);
2213         track_display.append_column (_("Show"), stripable_columns.visible);
2214         track_display.append_column (_("Strips"), stripable_columns.text);
2215         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2216         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2217         track_display.get_column (0)->set_expand(false);
2218         track_display.get_column (1)->set_expand(true);
2219         track_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2220         track_display.set_name (X_("EditGroupList"));
2221         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2222         track_display.set_reorderable (true);
2223         track_display.set_headers_visible (true);
2224         track_display.set_can_focus(false);
2225
2226         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2227         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2228
2229         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (0));
2230         track_list_visible_cell->property_activatable() = true;
2231         track_list_visible_cell->property_radio() = false;
2232         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2233
2234         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2235
2236         track_display_scroller.add (track_display);
2237         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2238
2239         VBox* v = manage (new VBox);
2240         v->show ();
2241         v->pack_start (track_display_scroller, true, true);
2242
2243         Button* b = manage (new Button);
2244         b->show ();
2245         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
2246         w->show ();
2247         b->add (*w);
2248
2249         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
2250
2251         v->pack_start (*b, false, false);
2252
2253         track_display_frame.set_name("BaseFrame");
2254         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2255         track_display_frame.add (*v);
2256
2257         track_display_scroller.show();
2258         track_display_frame.show();
2259         track_display.show();
2260 }
2261
2262 void
2263 Mixer_UI::new_track_or_bus ()
2264 {
2265         ARDOUR_UI::instance()->add_route ();
2266 }
2267
2268 void
2269 Mixer_UI::update_title ()
2270 {
2271         if (!own_window()) {
2272                 return;
2273         }
2274
2275         if (_session) {
2276                 string n;
2277
2278                 if (_session->snap_name() != _session->name()) {
2279                         n = _session->snap_name ();
2280                 } else {
2281                         n = _session->name ();
2282                 }
2283
2284                 if (_session->dirty ()) {
2285                         n = "*" + n;
2286                 }
2287
2288                 WindowTitle title (n);
2289                 title += S_("Window|Mixer");
2290                 title += Glib::get_application_name ();
2291                 own_window()->set_title (title.get_string());
2292
2293         } else {
2294
2295                 WindowTitle title (S_("Window|Mixer"));
2296                 title += Glib::get_application_name ();
2297                 own_window()->set_title (title.get_string());
2298         }
2299 }
2300
2301 MixerStrip*
2302 Mixer_UI::strip_by_x (int x)
2303 {
2304         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2305                 int x1, x2, y;
2306
2307                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2308                 x2 = x1 + (*i)->get_width();
2309
2310                 if (x >= x1 && x <= x2) {
2311                         return (*i);
2312                 }
2313         }
2314
2315         return 0;
2316 }
2317
2318 void
2319 Mixer_UI::set_axis_targets_for_operation ()
2320 {
2321         _axis_targets.clear ();
2322
2323         if (!_selection.empty()) {
2324                 _axis_targets = _selection.axes;
2325                 return;
2326         }
2327
2328 //  removed "implicit" selections of strips, after discussion on IRC
2329
2330 }
2331
2332 void
2333 Mixer_UI::monitor_section_going_away ()
2334 {
2335         if (_monitor_section) {
2336                 monitor_section_detached ();
2337                 out_packer.remove (_monitor_section->tearoff());
2338                 _monitor_section->set_session (0);
2339                 delete _monitor_section;
2340                 _monitor_section = 0;
2341         }
2342 }
2343
2344 void
2345 Mixer_UI::toggle_midi_input_active (bool flip_others)
2346 {
2347         boost::shared_ptr<RouteList> rl (new RouteList);
2348         bool onoff = false;
2349
2350         set_axis_targets_for_operation ();
2351
2352         for (AxisViewSelection::iterator r = _axis_targets.begin(); r != _axis_targets.end(); ++r) {
2353                 boost::shared_ptr<MidiTrack> mt = boost::dynamic_pointer_cast<MidiTrack> ((*r)->stripable());
2354
2355                 if (mt) {
2356                         rl->push_back (mt);
2357                         onoff = !mt->input_active();
2358                 }
2359         }
2360
2361         _session->set_exclusive_input_active (rl, onoff, flip_others);
2362 }
2363
2364 void
2365 Mixer_UI::maximise_mixer_space ()
2366 {
2367         if (!own_window()) {
2368                 return;
2369         }
2370
2371         if (_maximised) {
2372                 return;
2373         }
2374
2375         _window->fullscreen ();
2376         _maximised = true;
2377 }
2378
2379 void
2380 Mixer_UI::restore_mixer_space ()
2381 {
2382         if (!own_window()) {
2383                 return;
2384         }
2385
2386         if (!_maximised) {
2387                 return;
2388         }
2389
2390         own_window()->unfullscreen();
2391         _maximised = false;
2392 }
2393
2394 void
2395 Mixer_UI::monitor_section_attached ()
2396 {
2397         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2398         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2399         act->set_sensitive (true);
2400         tact->set_active ();
2401 }
2402
2403 void
2404 Mixer_UI::monitor_section_detached ()
2405 {
2406         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2407         act->set_sensitive (false);
2408 }
2409
2410 void
2411 Mixer_UI::store_current_favorite_order ()
2412 {
2413         typedef Gtk::TreeModel::Children type_children;
2414         type_children children = favorite_plugins_model->children();
2415         favorite_order.clear();
2416         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2417         {
2418                 Gtk::TreeModel::Row row = *iter;
2419                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2420                 favorite_order.push_back (ppp->_pip);
2421                 std::string name = row[favorite_plugins_columns.name];
2422                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2423         }
2424 }
2425
2426 void
2427 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2428 {
2429         Gtk::TreeModel::Row row = *iter;
2430         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2431         assert (ppp);
2432         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2433 }
2434
2435 void
2436 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2437 {
2438         PluginManager& manager (PluginManager::instance());
2439         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2440                 if (manager.get_status (*i) != PluginManager::Favorite) {
2441                         continue;
2442                 }
2443                 result.push_back (*i);
2444         }
2445 }
2446
2447 struct PluginCustomSorter {
2448 public:
2449         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2450                 PluginInfoList::const_iterator aiter = _user.begin();
2451                 PluginInfoList::const_iterator biter = _user.begin();
2452                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2453                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2454
2455                 if (aiter != _user.end() && biter != _user.end()) {
2456                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2457                 }
2458                 if (aiter != _user.end()) {
2459                         return true;
2460                 }
2461                 if (biter != _user.end()) {
2462                         return false;
2463                 }
2464                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2465         }
2466         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2467 private:
2468         PluginInfoList _user;
2469 };
2470
2471 void
2472 Mixer_UI::refill_favorite_plugins ()
2473 {
2474         PluginInfoList plugs;
2475         PluginManager& mgr (PluginManager::instance());
2476
2477 #ifdef LV2_SUPPORT
2478         refiller (plugs, mgr.lv2_plugin_info ());
2479 #endif
2480 #ifdef WINDOWS_VST_SUPPORT
2481         refiller (plugs, mgr.windows_vst_plugin_info ());
2482 #endif
2483 #ifdef LXVST_SUPPORT
2484         refiller (plugs, mgr.lxvst_plugin_info ());
2485 #endif
2486 #ifdef MACVST_SUPPORT
2487         refiller (plugs, mgr.mac_vst_plugin_info ());
2488 #endif
2489 #ifdef AUDIOUNIT_SUPPORT
2490         refiller (plugs, mgr.au_plugin_info ());
2491 #endif
2492         refiller (plugs, mgr.ladspa_plugin_info ());
2493         refiller (plugs, mgr.lua_plugin_info ());
2494
2495         store_current_favorite_order ();
2496
2497         PluginCustomSorter cmp (favorite_order);
2498         plugs.sort (cmp);
2499
2500         favorite_order = plugs;
2501
2502         sync_treeview_from_favorite_order ();
2503 }
2504
2505 void
2506 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2507 {
2508         TreeIter iter;
2509         if (!(iter = favorite_plugins_model->get_iter (path))) {
2510                 return;
2511         }
2512         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2513         if (!ppp) {
2514                 return;
2515         }
2516         PluginInfoPtr pip = ppp->_pip;
2517         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2518                 if (favorite_ui_state[pip->unique_id]) {
2519                         favorite_plugins_display.expand_row (path, true);
2520                 }
2521         }
2522 }
2523
2524 void
2525 Mixer_UI::sync_treeview_from_favorite_order ()
2526 {
2527         favorite_plugins_model->clear ();
2528         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2529                 PluginInfoPtr pip = (*i);
2530
2531                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2532                 newrow[favorite_plugins_columns.name] = (*i)->name;
2533                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2534                 if (!_session) {
2535                         continue;
2536                 }
2537
2538                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2539                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2540                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2541                         child_row[favorite_plugins_columns.name] = (*j).label;
2542                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2543                 }
2544                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2545                         if (favorite_ui_state[pip->unique_id]) {
2546                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2547                         }
2548                 }
2549         }
2550 }
2551
2552 void
2553 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2554 {
2555         using namespace Gtk::Menu_Helpers;
2556
2557         Gtk::Menu* m = manage (new Menu);
2558         MenuList& items = m->items ();
2559
2560         if (_selection.axes.empty()) {
2561                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
2562         } else {
2563                 items.push_back (MenuElem (_("Add at the top"),
2564                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
2565                 items.push_back (MenuElem (_("Add Pre-Fader"),
2566                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
2567                 items.push_back (MenuElem (_("Add Post-Fader"),
2568                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
2569                 items.push_back (MenuElem (_("Add at the end"),
2570                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
2571         }
2572
2573         items.push_back (SeparatorElem());
2574
2575         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
2576
2577         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2578         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
2579                 // we cannot currently delete AU presets
2580                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
2581                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
2582                 }
2583         }
2584
2585         m->popup (ev->button, ev->time);
2586 }
2587
2588 bool
2589 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
2590 {
2591         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
2592                 TreeModel::Path path;
2593                 TreeViewColumn* column;
2594                 int cellx, celly;
2595                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
2596                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2597                         if (selection) {
2598                                 selection->unselect_all();
2599                                 selection->select(path);
2600                         }
2601                 }
2602                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
2603                 if (ppp) {
2604                         popup_note_context_menu (ev);
2605                 }
2606         }
2607         return false;
2608 }
2609
2610
2611 PluginPresetPtr
2612 Mixer_UI::selected_plugin ()
2613 {
2614         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2615         if (!selection) {
2616                 return PluginPresetPtr();
2617         }
2618         Gtk::TreeModel::iterator iter = selection->get_selected();
2619         if (!iter) {
2620                 return PluginPresetPtr();
2621         }
2622         return (*iter)[favorite_plugins_columns.plugin];
2623 }
2624
2625 void
2626 Mixer_UI::add_selected_processor (ProcessorPosition pos)
2627 {
2628         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2629         if (ppp) {
2630                 add_favorite_processor (ppp, pos);
2631         }
2632 }
2633
2634 void
2635 Mixer_UI::delete_selected_preset ()
2636 {
2637         if (!_session) {
2638                 return;
2639         }
2640         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2641         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
2642                 return;
2643         }
2644         PluginPtr plugin = ppp->_pip->load (*_session);
2645         plugin->get_presets();
2646         plugin->remove_preset (ppp->_preset.label);
2647 }
2648
2649 void
2650 Mixer_UI::remove_selected_from_favorites ()
2651 {
2652         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2653         if (!ppp) {
2654                 return;
2655         }
2656         PluginManager::PluginStatusType status = PluginManager::Normal;
2657         PluginManager& manager (PluginManager::instance());
2658
2659         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2660         manager.save_statuses ();
2661 }
2662
2663 void
2664 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
2665 {
2666         TreeIter iter;
2667         if (!(iter = favorite_plugins_model->get_iter (path))) {
2668                 return;
2669         }
2670         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2671         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
2672 }
2673
2674 void
2675 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
2676 {
2677         if (!_session || _selection.axes.empty()) {
2678                 return;
2679         }
2680
2681         PluginInfoPtr pip = ppp->_pip;
2682         for (AxisViewSelection::iterator i = _selection.axes.begin(); i != _selection.axes.end(); ++i) {
2683                 boost::shared_ptr<ARDOUR::Route> rt = boost::dynamic_pointer_cast<ARDOUR::Route> ((*i)->stripable());
2684
2685                 if (!rt) {
2686                         continue;
2687                 }
2688
2689                 PluginPtr p = pip->load (*_session);
2690
2691                 if (!p) {
2692                         continue;
2693                 }
2694
2695                 if (ppp->_preset.valid) {
2696                         p->load_preset (ppp->_preset);
2697                 }
2698
2699                 Route::ProcessorStreams err;
2700                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2701
2702                 switch (pos) {
2703                         case AddTop:
2704                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
2705                                 break;
2706                         case AddPreFader:
2707                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
2708                                 break;
2709                         case AddPostFader:
2710                                 {
2711                                         int idx = 0;
2712                                         int pos = 0;
2713                                         for (;;++idx) {
2714                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
2715                                                 if (!np) {
2716                                                         break;
2717                                                 }
2718                                                 if (!np->display_to_user()) {
2719                                                         continue;
2720                                                 }
2721                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
2722                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
2723                                                         break;
2724                                                 }
2725                                                 ++pos;
2726                                         }
2727                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
2728                                 }
2729                                 break;
2730                         case AddBottom:
2731                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
2732                                 break;
2733                 }
2734         }
2735 }
2736
2737 bool
2738 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
2739 {
2740         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
2741                 return false;
2742         }
2743
2744         // only allow to re-order top-level items
2745         TreePath src;
2746         if (TreePath::get_from_selection_data (data, src)) {
2747                 if (src.up() && src.up()) {
2748                         return false;
2749                 }
2750         }
2751
2752         // don't allow to drop as child-rows.
2753         Gtk::TreeModel::Path _dest = dest; // un const
2754         const bool is_child = _dest.up (); // explicit bool for clang
2755         if (!is_child || _dest.empty ()) {
2756                 return true;
2757         }
2758         return false;
2759 }
2760
2761 void
2762 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
2763 {
2764         if (data.get_target() != "PluginPresetPtr") {
2765                 return;
2766         }
2767         if (data.get_length() != sizeof (PluginPresetPtr)) {
2768                 return;
2769         }
2770         const void *d = data.get_data();
2771         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
2772
2773         PluginManager::PluginStatusType status = PluginManager::Favorite;
2774         PluginManager& manager (PluginManager::instance());
2775
2776         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2777         manager.save_statuses ();
2778 }
2779
2780 void
2781 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
2782 {
2783         /* call protected MixerActor:: method */
2784         vca_assign (vca);
2785 }
2786
2787 void
2788 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
2789 {
2790         /* call protected MixerActor:: method */
2791         vca_unassign (vca);
2792 }
2793
2794 void
2795 Mixer_UI::show_vca_slaves (boost::shared_ptr<VCA> vca)
2796 {
2797         boost::shared_ptr<VCA> v = spilled_vca.lock();
2798         if (v != vca) {
2799                 spilled_vca = vca;
2800                 show_vca_change (vca); /* EMIT SIGNAL */
2801                 if (vca) {
2802                         _group_tabs->hide ();
2803                 } else {
2804                         _group_tabs->show ();
2805                 }
2806                 redisplay_track_list ();
2807         }
2808 }
2809
2810 bool
2811 Mixer_UI::showing_vca_slaves_for (boost::shared_ptr<VCA> vca) const
2812 {
2813        return vca == spilled_vca.lock();
2814 }
2815
2816 void
2817 Mixer_UI::register_actions ()
2818 {
2819         Glib::RefPtr<ActionGroup> group = myactions.create_action_group (X_("Mixer"));
2820
2821         myactions.register_action (group, "solo", _("Toggle Solo on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::solo_action));
2822         myactions.register_action (group, "mute", _("Toggle Mute on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::mute_action));
2823         myactions.register_action (group, "recenable", _("Toggle Rec-enable on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::rec_enable_action));
2824         myactions.register_action (group, "increment-gain", _("Decrease Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_up_action));
2825         myactions.register_action (group, "decrement-gain", _("Increase Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_down_action));
2826         myactions.register_action (group, "unity-gain", _("Set Gain to 0dB on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::unity_gain_action));
2827
2828
2829         myactions.register_action (group, "copy-processors", _("Copy Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::copy_processors));
2830         myactions.register_action (group, "cut-processors", _("Cut Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::cut_processors));
2831         myactions.register_action (group, "paste-processors", _("Paste Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::paste_processors));
2832         myactions.register_action (group, "delete-processors", _("Delete Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::delete_processors));
2833         myactions.register_action (group, "select-all-processors", _("Select All (visible) Processors"), sigc::mem_fun (*this, &Mixer_UI::select_all_processors));
2834         myactions.register_action (group, "toggle-processors", _("Toggle Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::toggle_processors));
2835         myactions.register_action (group, "ab-plugins", _("Toggle Selected Plugins"), sigc::mem_fun (*this, &Mixer_UI::ab_plugins));
2836         myactions.register_action (group, "select-none", _("Deselect all strips and processors"), sigc::mem_fun (*this, &Mixer_UI::select_none));
2837
2838         myactions.register_action (group, "scroll-left", _("Scroll Mixer Window to the left"), sigc::mem_fun (*this, &Mixer_UI::scroll_left));
2839         myactions.register_action (group, "scroll-right", _("Scroll Mixer Window to the right"), sigc::mem_fun (*this, &Mixer_UI::scroll_right));
2840
2841         myactions.register_action (group, "toggle-midi-input-active", _("Toggle MIDI Input Active for Mixer-Selected Tracks/Busses"),
2842                                    sigc::bind (sigc::mem_fun (*this, &Mixer_UI::toggle_midi_input_active), false));
2843 }
2844
2845 void
2846 Mixer_UI::load_bindings ()
2847 {
2848         bindings = Bindings::get_bindings (X_("Mixer"), myactions);
2849 }
2850
2851 template<class T> void
2852 Mixer_UI::control_action (boost::shared_ptr<T> (Stripable::*get_control)() const)
2853 {
2854         boost::shared_ptr<ControlList> cl (new ControlList);
2855         boost::shared_ptr<AutomationControl> ac;
2856         bool val = false;
2857         bool have_val = false;
2858
2859         set_axis_targets_for_operation ();
2860
2861         BOOST_FOREACH(AxisView* r, _axis_targets) {
2862                 boost::shared_ptr<Stripable> s = r->stripable();
2863                 if (s) {
2864                         ac = (s.get()->*get_control)();
2865                         if (ac) {
2866                                 cl->push_back (ac);
2867                                 if (!have_val) {
2868                                         val = !ac->get_value();
2869                                         have_val = true;
2870                                 }
2871                         }
2872                 }
2873         }
2874
2875         _session->set_controls (cl,  val, Controllable::UseGroup);
2876 }
2877
2878 void
2879 Mixer_UI::solo_action ()
2880 {
2881         control_action (&Stripable::solo_control);
2882 }
2883
2884 void
2885 Mixer_UI::mute_action ()
2886 {
2887         control_action (&Stripable::mute_control);
2888 }
2889
2890 void
2891 Mixer_UI::rec_enable_action ()
2892 {
2893         control_action (&Stripable::rec_enable_control);
2894 }
2895
2896 void
2897 Mixer_UI::step_gain_up_action ()
2898 {
2899         set_axis_targets_for_operation ();
2900
2901         BOOST_FOREACH(AxisView* r, _axis_targets) {
2902                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2903                 if (ms) {
2904                         ms->step_gain_up ();
2905                 }
2906         }
2907 }
2908
2909 void
2910 Mixer_UI::step_gain_down_action ()
2911 {
2912         set_axis_targets_for_operation ();
2913
2914         BOOST_FOREACH(AxisView* r, _axis_targets) {
2915                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2916                 if (ms) {
2917                         ms->step_gain_down ();
2918                 }
2919         }
2920 }
2921
2922 void
2923 Mixer_UI::unity_gain_action ()
2924 {
2925         set_axis_targets_for_operation ();
2926
2927         BOOST_FOREACH(AxisView* r, _axis_targets) {
2928                 boost::shared_ptr<Stripable> s = r->stripable();
2929                 if (s) {
2930                         boost::shared_ptr<AutomationControl> ac = s->gain_control();
2931                         if (ac) {
2932                                 ac->set_value (1.0, Controllable::UseGroup);
2933                         }
2934                 }
2935         }
2936 }
2937
2938 void
2939 Mixer_UI::copy_processors ()
2940 {
2941         set_axis_targets_for_operation ();
2942
2943         BOOST_FOREACH(AxisView* r, _axis_targets) {
2944                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2945                 if (ms) {
2946                         ms->copy_processors ();
2947                 }
2948         }
2949 }
2950 void
2951 Mixer_UI::cut_processors ()
2952 {
2953         set_axis_targets_for_operation ();
2954
2955         BOOST_FOREACH(AxisView* r, _axis_targets) {
2956                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2957                 if (ms) {
2958                         ms->cut_processors ();
2959                 }
2960         }
2961 }
2962 void
2963 Mixer_UI::paste_processors ()
2964 {
2965         set_axis_targets_for_operation ();
2966
2967         BOOST_FOREACH(AxisView* r, _axis_targets) {
2968                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2969                 if (ms) {
2970                         ms->paste_processors ();
2971                 }
2972         }
2973 }
2974 void
2975 Mixer_UI::select_all_processors ()
2976 {
2977         set_axis_targets_for_operation ();
2978
2979         BOOST_FOREACH(AxisView* r, _axis_targets) {
2980                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2981                 if (ms) {
2982                         ms->select_all_processors ();
2983                 }
2984         }
2985 }
2986 void
2987 Mixer_UI::toggle_processors ()
2988 {
2989         set_axis_targets_for_operation ();
2990
2991         BOOST_FOREACH(AxisView* r, _axis_targets) {
2992                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2993                 if (ms) {
2994                         ms->toggle_processors ();
2995                 }
2996         }
2997 }
2998 void
2999 Mixer_UI::ab_plugins ()
3000 {
3001         set_axis_targets_for_operation ();
3002
3003         BOOST_FOREACH(AxisView* r, _axis_targets) {
3004                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3005                 if (ms) {
3006                         ms->ab_plugins ();
3007                 }
3008         }
3009 }
3010
3011 void
3012 Mixer_UI::vca_assign (boost::shared_ptr<VCA> vca)
3013 {
3014         set_axis_targets_for_operation ();
3015 #if 0
3016         BOOST_FOREACH(AxisView* r, _axis_targets) {
3017                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3018                 if (ms) {
3019                         ms->vca_assign (vca);
3020                 }
3021         }
3022 #endif
3023 }
3024
3025 void
3026 Mixer_UI::vca_unassign (boost::shared_ptr<VCA> vca)
3027 {
3028         set_axis_targets_for_operation ();
3029 #if 0
3030         BOOST_FOREACH(AxisView* r, _axis_targets) {
3031                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3032                 if (ms) {
3033                         ms->vca_unassign (vca);
3034                 }
3035         }
3036 #endif
3037 }