gtk2_ardour/mixer_ui.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <algorithm>
  25 #include <map>
  26 #include <sigc++/bind.h>
  27
  28 #include <boost/foreach.hpp>
  29
  30 #include <gtkmm/accelmap.h>
  31
  32 #include "pbd/convert.h"
  33 #include "pbd/stacktrace.h"
  34 #include "pbd/unwind.h"
  35
  36 #include <glibmm/threads.h>
  37
  38 #include <gtkmm2ext/gtk_ui.h>
  39 #include <gtkmm2ext/keyboard.h>
  40 #include <gtkmm2ext/utils.h>
  41 #include <gtkmm2ext/tearoff.h>
  42 #include <gtkmm2ext/window_title.h>
  43 #include <gtkmm2ext/doi.h>
  44
  45 #include "ardour/amp.h"
  46 #include "ardour/debug.h"
  47 #include "ardour/audio_track.h"
  48 #include "ardour/midi_track.h"
  49 #include "ardour/plugin_manager.h"
  50 #include "ardour/route_group.h"
  51 #include "ardour/session.h"
  52 #include "ardour/vca.h"
  53 #include "ardour/vca_manager.h"
  54
  55 #include "keyboard.h"
  56 #include "mixer_ui.h"
  57 #include "mixer_strip.h"
  58 #include "monitor_section.h"
  59 #include "plugin_selector.h"
  60 #include "public_editor.h"
  61 #include "mouse_cursors.h"
  62 #include "ardour_ui.h"
  63 #include "prompter.h"
  64 #include "utils.h"
  65 #include "route_sorter.h"
  66 #include "actions.h"
  67 #include "gui_thread.h"
  68 #include "mixer_group_tabs.h"
  69 #include "route_sorter.h"
  70 #include "timers.h"
  71 #include "ui_config.h"
  72 #include "vca_master_strip.h"
  73
  74 #include "pbd/i18n.h"
  75
  76 using namespace ARDOUR;
  77 using namespace ARDOUR_UI_UTILS;
  78 using namespace PBD;
  79 using namespace Gtk;
  80 using namespace Glib;
  81 using namespace Gtkmm2ext;
  82 using namespace std;
  83
  84 using PBD::atoi;
  85 using PBD::Unwinder;
  86
  87 Mixer_UI* Mixer_UI::_instance = 0;
  88
  89 Mixer_UI*
  90 Mixer_UI::instance ()
  91 {
  92         if (!_instance) {
  93                 _instance  = new Mixer_UI;
  94         }
  95
  96         return _instance;
  97 }
  98
  99 Mixer_UI::Mixer_UI ()
 100         : Tabbable (_content, _("Mixer"))
 101         , no_track_list_redisplay (false)
 102         , in_group_row_change (false)
 103         , track_menu (0)
 104         , _monitor_section (0)
 105         , _plugin_selector (0)
 106         , _strip_width (UIConfiguration::instance().get_default_narrow_ms() ? Narrow : Wide)
 107         , ignore_reorder (false)
 108         , _in_group_rebuild_or_clear (false)
 109         , _route_deletion_in_progress (false)
 110         , _following_editor_selection (false)
 111         , _maximised (false)
 112         , _show_mixer_list (true)
 113         , myactions (X_("mixer"))
 114 {
 115         register_actions ();
 116         load_bindings ();
 117         _content.set_data ("ardour-bindings", bindings);
 118
 119         PresentationInfo::Change.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_presentation_info, this), gui_context());
 120
 121         scroller.set_can_default (true);
 122         // set_default (scroller);
 123
 124         scroller_base.set_flags (Gtk::CAN_FOCUS);
 125         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 126         scroller_base.set_name ("MixerWindow");
 127         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 128
 129         /* set up drag-n-drop */
 130         vector<TargetEntry> target_table;
 131         target_table.push_back (TargetEntry ("PluginFavoritePtr"));
 132         scroller_base.drag_dest_set (target_table);
 133         scroller_base.signal_drag_data_received().connect (sigc::mem_fun(*this, &Mixer_UI::scroller_drag_data_received));
 134
 135         // add as last item of strip packer
 136         strip_packer.pack_end (scroller_base, true, true);
 137
 138         _group_tabs = new MixerGroupTabs (this);
 139         VBox* b = manage (new VBox);
 140         b->set_spacing (0);
 141         b->set_border_width (0);
 142         b->pack_start (*_group_tabs, PACK_SHRINK);
 143         b->pack_start (strip_packer);
 144         b->show_all ();
 145         b->signal_scroll_event().connect (sigc::mem_fun (*this, &Mixer_UI::on_scroll_event), false);
 146
 147         scroller.add (*b);
 148         scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 149
 150         setup_track_display ();
 151
 152         group_model = ListStore::create (group_columns);
 153         group_display.set_model (group_model);
 154         group_display.append_column (_("Show"), group_columns.visible);
 155         group_display.append_column (_("Group"), group_columns.text);
 156         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 157         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 158         group_display.get_column (0)->set_expand(false);
 159         group_display.get_column (1)->set_expand(true);
 160         group_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
 161         group_display.set_name ("EditGroupList");
 162         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 163         group_display.set_reorderable (true);
 164         group_display.set_headers_visible (true);
 165         group_display.set_rules_hint (true);
 166         group_display.set_can_focus(false);
 167
 168         /* name is directly editable */
 169
 170         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
 171         name_cell->property_editable() = true;
 172         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 173
 174         /* use checkbox for the active column */
 175
 176         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (0));
 177         active_cell->property_activatable() = true;
 178         active_cell->property_radio() = false;
 179
 180         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 181         /* We use this to notice drag-and-drop reorders of the group list */
 182         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 183         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 184
 185         group_display_scroller.add (group_display);
 186         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 187
 188         HBox* route_group_display_button_box = manage (new HBox());
 189
 190         Button* route_group_add_button = manage (new Button ());
 191         Button* route_group_remove_button = manage (new Button ());
 192
 193         Widget* w;
 194
 195         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 196         w->show();
 197         route_group_add_button->add (*w);
 198
 199         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 200         w->show();
 201         route_group_remove_button->add (*w);
 202
 203         route_group_display_button_box->set_homogeneous (true);
 204
 205         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 206         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 207
 208         route_group_display_button_box->add (*route_group_add_button);
 209         route_group_display_button_box->add (*route_group_remove_button);
 210
 211         group_display_vbox.pack_start (group_display_scroller, true, true);
 212         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 213
 214         group_display_frame.set_name ("BaseFrame");
 215         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 216         group_display_frame.add (group_display_vbox);
 217
 218
 219         list<TargetEntry> target_list;
 220         target_list.push_back (TargetEntry ("PluginPresetPtr"));
 221
 222         favorite_plugins_model = PluginTreeStore::create (favorite_plugins_columns);
 223         favorite_plugins_display.set_model (favorite_plugins_model);
 224         favorite_plugins_display.append_column (_("Favorite Plugins"), favorite_plugins_columns.name);
 225         favorite_plugins_display.set_name ("EditGroupList");
 226         favorite_plugins_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 227         favorite_plugins_display.set_reorderable (false);
 228         favorite_plugins_display.set_headers_visible (true);
 229         favorite_plugins_display.set_rules_hint (true);
 230         favorite_plugins_display.set_can_focus (false);
 231         favorite_plugins_display.set_tooltip_column (0);
 232         favorite_plugins_display.add_object_drag (favorite_plugins_columns.plugin.index(), "PluginFavoritePtr");
 233         favorite_plugins_display.set_drag_column (favorite_plugins_columns.name.index());
 234         favorite_plugins_display.add_drop_targets (target_list);
 235         favorite_plugins_display.signal_row_activated().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_activated));
 236         favorite_plugins_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::plugin_row_button_press), false);
 237         favorite_plugins_display.signal_drop.connect (sigc::mem_fun (*this, &Mixer_UI::plugin_drop));
 238         favorite_plugins_display.signal_row_expanded().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 239         favorite_plugins_display.signal_row_collapsed().connect (sigc::mem_fun (*this, &Mixer_UI::save_favorite_ui_state));
 240         favorite_plugins_model->signal_row_has_child_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::sync_treeview_favorite_ui_state));
 241
 242         favorite_plugins_scroller.add (favorite_plugins_display);
 243         favorite_plugins_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 244
 245         favorite_plugins_frame.set_name ("BaseFrame");
 246         favorite_plugins_frame.set_shadow_type (Gtk::SHADOW_IN);
 247         favorite_plugins_frame.add (favorite_plugins_scroller);
 248
 249         rhs_pane1.add (favorite_plugins_frame);
 250         rhs_pane1.add (track_display_frame);
 251
 252         rhs_pane2.add (rhs_pane1);
 253         rhs_pane2.add (group_display_frame);
 254
 255         list_vpacker.pack_start (rhs_pane2, true, true);
 256
 257         vca_label_bar.set_size_request (-1, 16 + 1); /* must match height in GroupTabs::set_size_request()  + 1 border px*/
 258         vca_vpacker.pack_start (vca_label_bar, false, false);
 259
 260         vca_scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 261         vca_scroller_base.set_name (X_("MixerWindow"));
 262         vca_scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::masters_scroller_button_release), false);
 263         vca_hpacker.pack_end (vca_scroller_base, true, true);
 264
 265         vca_scroller.add (vca_hpacker);
 266         vca_scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 267         vca_scroller.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 268
 269         vca_vpacker.pack_start (vca_scroller, true, true);
 270
 271         inner_pane.add (scroller);
 272         inner_pane.add (vca_vpacker);
 273
 274         global_hpacker.pack_start (inner_pane, true, true);
 275         global_hpacker.pack_start (out_packer, false, false);
 276
 277         list_hpane.set_check_divider_position (true);
 278         list_hpane.add (list_vpacker);
 279         list_hpane.add (global_hpacker);
 280         list_hpane.set_child_minsize (list_vpacker, 1);
 281
 282
 283         XMLNode const * settings = ARDOUR_UI::instance()->mixer_settings();
 284         XMLProperty const * prop;
 285         float fract;
 286
 287         {
 288                 LocaleGuard lg;
 289
 290                 if (!settings || ((prop = settings->property ("mixer-rhs-pane1-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 291                         rhs_pane1.set_divider (0, 0.6f);
 292                 } else {
 293                         rhs_pane1.set_divider (0, fract);
 294                 }
 295                 if (!settings || ((prop = settings->property ("mixer-rhs-pane2-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 296                         rhs_pane2.set_divider (0, 0.7f);
 297                 } else {
 298                         rhs_pane2.set_divider (0, fract);
 299                 }
 300                 if (!settings || ((prop = settings->property ("mixer-list-hpane-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 301                         list_hpane.set_divider (0, 0.2f);
 302                 } else {
 303                         list_hpane.set_divider (0, fract);
 304                 }
 305                 if (!settings || ((prop = settings->property ("mixer-inner-pane-pos")) == 0)  || ((fract = atof (prop->value())) > 1.0)) {
 306                         inner_pane.set_divider (0, 0.8f);
 307                 } else {
 308                         inner_pane.set_divider (0, atof (prop->value()));
 309                 }
 310         }
 311
 312         rhs_pane1.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 313         rhs_pane2.set_drag_cursor (*PublicEditor::instance().cursors()->expand_up_down);
 314         list_hpane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 315         inner_pane.set_drag_cursor (*PublicEditor::instance().cursors()->expand_left_right);
 316
 317         _content.pack_start (list_hpane, true, true);
 318
 319         update_title ();
 320
 321         route_group_display_button_box->show();
 322         route_group_add_button->show();
 323         route_group_remove_button->show();
 324
 325         _content.show ();
 326         _content.set_name ("MixerWindow");
 327
 328         global_hpacker.show();
 329         scroller.show();
 330         scroller_base.show();
 331         scroller_hpacker.show();
 332         mixer_scroller_vpacker.show();
 333         list_vpacker.show();
 334         group_display_button_label.show();
 335         group_display_button.show();
 336         group_display_scroller.show();
 337         favorite_plugins_scroller.show();
 338         group_display_vbox.show();
 339         group_display_frame.show();
 340         favorite_plugins_frame.show();
 341         rhs_pane1.show();
 342         rhs_pane2.show();
 343         strip_packer.show();
 344         inner_pane.show();
 345         vca_scroller.show();
 346         vca_vpacker.show();
 347         vca_hpacker.show();
 348         vca_label_bar.show();
 349         vca_label.show();
 350         vca_scroller_base.show();
 351         out_packer.show();
 352         list_hpane.show();
 353         group_display.show();
 354         favorite_plugins_display.show();
 355
 356         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 357
 358         /* handle escape */
 359
 360         ARDOUR_UI::instance()->Escape.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::escape, this), gui_context());
 361
 362 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 363         _plugin_selector = new PluginSelector (PluginManager::instance ());
 364 #else
 365 #error implement deferred Plugin-Favorite list
 366 #endif
 367         PluginManager::instance ().PluginListChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 368         PluginManager::instance ().PluginStatusesChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 369         ARDOUR::Plugin::PresetsChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::refill_favorite_plugins, this), gui_context());
 370 }
 371
 372 Mixer_UI::~Mixer_UI ()
 373 {
 374         if (_monitor_section) {
 375                 monitor_section_detached ();
 376                 delete _monitor_section;
 377         }
 378         delete _plugin_selector;
 379 }
 380
 381 void
 382 Mixer_UI::escape ()
 383 {
 384         select_none ();
 385 }
 386
 387 void
 388 Mixer_UI::track_editor_selection ()
 389 {
 390         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 391 }
 392
 393 Gtk::Window*
 394 Mixer_UI::use_own_window (bool and_fill_it)
 395 {
 396         bool new_window = !own_window();
 397
 398         Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
 399
 400
 401         if (win && new_window) {
 402                 win->set_name ("MixerWindow");
 403                 ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Mixer"), this);
 404                 win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
 405                 win->set_data ("ardour-bindings", bindings);
 406                 update_title ();
 407         }
 408
 409         return win;
 410 }
 411
 412 void
 413 Mixer_UI::show_window ()
 414 {
 415         Tabbable::show_window ();
 416
 417         /* show/hide group tabs as required */
 418         parameter_changed ("show-group-tabs");
 419
 420         /* now reset each strips width so the right widgets are shown */
 421
 422         TreeModel::Children rows = track_model->children();
 423         TreeModel::Children::iterator ri;
 424
 425         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 426                 AxisView* av = (*ri)[stripable_columns.strip];
 427                 MixerStrip* ms = dynamic_cast<MixerStrip*> (av);
 428                 if (!ms) {
 429                         continue;
 430                 }
 431                 ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 432                 /* Fix visibility of mixer strip stuff */
 433                 ms->parameter_changed (X_("mixer-element-visibility"));
 434         }
 435
 436         /* force focus into main area */
 437         scroller_base.grab_focus ();
 438 }
 439
 440 void
 441 Mixer_UI::remove_master (VCAMasterStrip* vms)
 442 {
 443         if (_session && _session->deletion_in_progress()) {
 444                 /* its all being taken care of */
 445                 return;
 446         }
 447
 448         TreeModel::Children rows = track_model->children();
 449         TreeModel::Children::iterator ri;
 450
 451         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 452                 if ((*ri)[stripable_columns.strip] == vms) {
 453                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 454                         track_model->erase (ri);
 455                         break;
 456                 }
 457         }
 458 }
 459
 460 bool
 461 Mixer_UI::masters_scroller_button_release (GdkEventButton* ev)
 462 {
 463         using namespace Menu_Helpers;
 464
 465         if (Keyboard::is_context_menu_event (ev)) {
 466                 ARDOUR_UI::instance()->add_route ();
 467                 return true;
 468         }
 469
 470         return false;
 471 }
 472
 473 void
 474 Mixer_UI::add_masters (VCAList& vlist)
 475 {
 476         StripableList sl;
 477
 478         for (VCAList::iterator v = vlist.begin(); v != vlist.end(); ++v) {
 479                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
 480         }
 481
 482         add_stripables (sl);
 483 }
 484
 485 void
 486 Mixer_UI::add_routes (RouteList& rlist)
 487 {
 488         StripableList sl;
 489
 490         for (RouteList::iterator r = rlist.begin(); r != rlist.end(); ++r) {
 491                 sl.push_back (*r);
 492         }
 493
 494         add_stripables (sl);
 495 }
 496
 497 void
 498 Mixer_UI::add_stripables (StripableList& slist)
 499 {
 500         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 501         bool from_scratch = (track_model->children().size() == 0);
 502         uint32_t nroutes = 0;
 503
 504         slist.sort (StripablePresentationInfoSorter());
 505
 506         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 507                 boost::shared_ptr<Stripable> s = (*it)[stripable_columns.stripable];
 508
 509                 if (!s) {
 510                         continue;
 511                 }
 512
 513                 nroutes++;
 514
 515                 if (s->presentation_info().order() == (slist.front()->presentation_info().order() + slist.size())) {
 516                         insert_iter = it;
 517                         break;
 518                 }
 519         }
 520
 521         MixerStrip* strip;
 522
 523
 524         try {
 525                 PBD::Unwinder<bool> uw (no_track_list_redisplay, true);
 526
 527                 track_display.set_model (Glib::RefPtr<ListStore>());
 528
 529                 for (StripableList::iterator s = slist.begin(); s != slist.end(); ++s) {
 530
 531                         boost::shared_ptr<Route> route;
 532                         boost::shared_ptr<VCA> vca;
 533
 534                         if ((vca  = boost::dynamic_pointer_cast<VCA> (*s))) {
 535
 536                                 VCAMasterStrip* vms = new VCAMasterStrip (_session, vca);
 537
 538                                 TreeModel::Row row = *(track_model->append());
 539
 540                                 row[stripable_columns.text] = vca->name();
 541                                 row[stripable_columns.visible] = vms->marked_for_display ();
 542                                 row[stripable_columns.strip] = vms;
 543                                 row[stripable_columns.stripable] = vca;
 544
 545                                 vms->CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_master, this, _1), gui_context());
 546
 547                         } else if ((route = boost::dynamic_pointer_cast<Route> (*s))) {
 548
 549                                 if (route->is_auditioner()) {
 550                                         continue;
 551                                 }
 552
 553                                 if (route->is_monitor()) {
 554
 555                                         if (!_monitor_section) {
 556                                                 _monitor_section = new MonitorSection (_session);
 557
 558                                                 XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 559                                                 if (mnode) {
 560                                                         _monitor_section->tearoff().set_state (*mnode);
 561                                                 }
 562                                         }
 563
 564                                         out_packer.pack_end (_monitor_section->tearoff(), false, false);
 565                                         _monitor_section->set_session (_session);
 566                                         _monitor_section->tearoff().show_all ();
 567
 568                                         _monitor_section->tearoff().Detach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_detached));
 569                                         _monitor_section->tearoff().Attach.connect (sigc::mem_fun(*this, &Mixer_UI::monitor_section_attached));
 570
 571                                         monitor_section_attached ();
 572
 573                                         route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 574
 575                                         /* no regular strip shown for control out */
 576
 577                                         continue;
 578                                 }
 579
 580                                 strip = new MixerStrip (*this, _session, route);
 581                                 strips.push_back (strip);
 582
 583                                 UIConfiguration::instance().get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 584
 585                                 if (strip->width_owner() != strip) {
 586                                         strip->set_width_enum (_strip_width, this);
 587                                 }
 588
 589                                 show_strip (strip);
 590
 591                                 if (!route->is_master()) {
 592
 593                                         TreeModel::Row row = *(track_model->insert (insert_iter));
 594
 595                                         row[stripable_columns.text] = route->name();
 596                                         row[stripable_columns.visible] = strip->marked_for_display();
 597                                         row[stripable_columns.stripable] = route;
 598                                         row[stripable_columns.strip] = strip;
 599
 600                                         if (nroutes != 0) {
 601                                                 _selection.add (strip);
 602                                         }
 603
 604                                 } else {
 605
 606                                         out_packer.pack_start (*strip, false, false);
 607                                         strip->set_packed (true);
 608                                 }
 609
 610                                 strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 611                                 strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 612                         }
 613
 614                         (*s)->presentation_info().PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 615                         (*s)->PropertyChanged.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::stripable_property_changed, this, _1, boost::weak_ptr<Stripable>(*s)), gui_context());
 616                 }
 617
 618         } catch (const std::exception& e) {
 619                 error << string_compose (_("Error adding GUI elements for new tracks/busses %1"), e.what()) << endmsg;
 620         }
 621
 622         track_display.set_model (track_model);
 623
 624         if (!from_scratch) {
 625                 sync_presentation_info_from_treeview ();
 626         }
 627
 628         redisplay_track_list ();
 629 }
 630
 631 void
 632 Mixer_UI::deselect_all_strip_processors ()
 633 {
 634         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 635                 (*i)->deselect_all_processors();
 636         }
 637 }
 638
 639 void
 640 Mixer_UI::select_strip (MixerStrip& ms, bool add)
 641 {
 642         if (add) {
 643                 _selection.add (&ms);
 644         } else {
 645                 _selection.set (&ms);
 646         }
 647 }
 648
 649 void
 650 Mixer_UI::select_none ()
 651 {
 652         _selection.clear_routes();
 653         deselect_all_strip_processors();
 654 }
 655
 656 void
 657 Mixer_UI::delete_processors ()
 658 {
 659         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 660                 (*i)->delete_processors();
 661         }
 662 }
 663
 664
 665 void
 666 Mixer_UI::remove_strip (MixerStrip* strip)
 667 {
 668         if (_session && _session->deletion_in_progress()) {
 669                 /* its all being taken care of */
 670                 return;
 671         }
 672
 673         TreeModel::Children rows = track_model->children();
 674         TreeModel::Children::iterator ri;
 675         list<MixerStrip *>::iterator i;
 676
 677         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 678                 strips.erase (i);
 679         }
 680
 681         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 682                 if ((*ri)[stripable_columns.strip] == strip) {
 683                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 684                         track_model->erase (ri);
 685                         break;
 686                 }
 687         }
 688 }
 689
 690 void
 691 Mixer_UI::sync_presentation_info_from_treeview ()
 692 {
 693         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 694                 return;
 695         }
 696
 697         TreeModel::Children rows = track_model->children();
 698
 699         if (rows.empty()) {
 700                 return;
 701         }
 702
 703         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync presentation info from treeview\n");
 704
 705         TreeModel::Children::iterator ri;
 706         bool change = false;
 707         uint32_t order = 0;
 708
 709         OrderingKeys sorted;
 710         const size_t cmp_max = rows.size ();
 711
 712         // special case master if it's got PI order 0 lets keep it there
 713         if (_session->master_out() && (_session->master_out()->presentation_info().order() == 0)) {
 714                 order++;
 715         }
 716
 717         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 718                 bool visible = (*ri)[stripable_columns.visible];
 719                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 720
 721                 if (!stripable) {
 722                         continue;
 723                 }
 724
 725                 /* Monitor and Auditioner do not get their presentation
 726                  * info reset here.
 727                  */
 728
 729                 if (stripable->is_monitor() || stripable->is_auditioner()) {
 730                         continue;
 731                 }
 732
 733                 /* Master also doesn't get set here but since the editor allows
 734                  * it to be reordered, we need to preserve its ordering.
 735                  */
 736
 737                 stripable->presentation_info().set_hidden (!visible);
 738
 739                 // master may not get set here, but if it is zero keep it there
 740                 if (stripable->is_master() && (stripable->presentation_info().order() == 0)) {
 741                         continue;
 742                 }
 743
 744                 if (order != stripable->presentation_info().order()) {
 745                         stripable->set_presentation_order (order, false);
 746                         change = true;
 747                 }
 748
 749                 sorted.push_back (OrderKeys (order, stripable, cmp_max));
 750
 751                 ++order;
 752         }
 753
 754         if (!change) {
 755                 // VCA (and Mixbus) special cases according to SortByNewDisplayOrder
 756                 uint32_t n = 0;
 757                 SortByNewDisplayOrder cmp;
 758                 sort (sorted.begin(), sorted.end(), cmp);
 759                 for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 760                         if (sr->old_display_order != n) {
 761                                 change = true;
 762                         }
 763                 }
 764                 if (change) {
 765                         n = 0;
 766                         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 767                                 if (sr->stripable->presentation_info().order() != n) {
 768                                         sr->stripable->set_presentation_order (n, false);
 769                                 }
 770                         }
 771                 }
 772         }
 773
 774         if (change) {
 775                 DEBUG_TRACE (DEBUG::OrderKeys, "... notify PI change from mixer GUI\n");
 776                 _session->notify_presentation_info_change ();
 777                 _session->set_dirty();
 778         }
 779 }
 780
 781 void
 782 Mixer_UI::sync_treeview_from_presentation_info ()
 783 {
 784         if (!_session || _session->deletion_in_progress()) {
 785                 return;
 786         }
 787
 788         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from presentation info.\n");
 789
 790         /* we could get here after either a change in the Mixer or Editor sort
 791          * order, but either way, the mixer order keys reflect the intended
 792          * order for the GUI, so reorder the treeview model to match it.
 793          */
 794
 795         vector<int> neworder;
 796         TreeModel::Children rows = track_model->children();
 797         uint32_t old_order = 0;
 798         bool changed = false;
 799
 800         if (rows.empty()) {
 801                 return;
 802         }
 803
 804         OrderingKeys sorted;
 805         const size_t cmp_max = rows.size ();
 806
 807         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 808                 boost::shared_ptr<Stripable> stripable = (*ri)[stripable_columns.stripable];
 809                 sorted.push_back (OrderKeys (old_order, stripable, cmp_max));
 810         }
 811
 812         SortByNewDisplayOrder cmp;
 813
 814         sort (sorted.begin(), sorted.end(), cmp);
 815         neworder.assign (sorted.size(), 0);
 816
 817         uint32_t n = 0;
 818
 819         for (OrderingKeys::iterator sr = sorted.begin(); sr != sorted.end(); ++sr, ++n) {
 820
 821                 neworder[n] = sr->old_display_order;
 822
 823                 if (sr->old_display_order != n) {
 824                         changed = true;
 825                 }
 826         }
 827
 828         if (changed) {
 829                 Unwinder<bool> uw (ignore_reorder, true);
 830                 track_model->reorder (neworder);
 831         }
 832
 833         redisplay_track_list ();
 834 }
 835
 836 void
 837 Mixer_UI::follow_editor_selection ()
 838 {
 839         if (_following_editor_selection) {
 840                 return;
 841         }
 842
 843         _following_editor_selection = true;
 844         _selection.block_routes_changed (true);
 845
 846         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 847
 848         _selection.clear_routes ();
 849
 850         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 851                 TimeAxisView* tav = dynamic_cast<TimeAxisView*> (*i);
 852                 if (tav) {
 853                         AxisView* axis = axis_by_stripable (tav->stripable());
 854                         if (axis) {
 855                                 _selection.add (axis);
 856                         }
 857                 }
 858         }
 859
 860         _following_editor_selection = false;
 861         _selection.block_routes_changed (false);
 862 }
 863
 864
 865 MixerStrip*
 866 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r) const
 867 {
 868         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 869                 if ((*i)->route() == r) {
 870                         return (*i);
 871                 }
 872         }
 873
 874         return 0;
 875 }
 876
 877 AxisView*
 878 Mixer_UI::axis_by_stripable (boost::shared_ptr<Stripable> s) const
 879 {
 880         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
 881                 if ((*i)->stripable() == s) {
 882                         return (*i);
 883                 }
 884         }
 885
 886         return 0;
 887 }
 888
 889 bool
 890 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 891 {
 892         if (ev->button == 1) {
 893                 if (_selection.selected (strip)) {
 894                         /* primary-click: toggle selection state of strip */
 895                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 896                                 _selection.remove (strip);
 897                         } else if (_selection.axes.size() > 1) {
 898                                 /* de-select others */
 899                                 _selection.set (strip);
 900                         }
 901                 } else {
 902                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 903                                 _selection.add (strip);
 904                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 905
 906                                 /* extend selection */
 907
 908                                 vector<MixerStrip*> tmp;
 909                                 bool accumulate = false;
 910                                 bool found_another = false;
 911
 912                                 tmp.push_back (strip);
 913
 914                                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 915                                         if ((*i) == strip) {
 916                                                 /* hit clicked strip, start accumulating till we hit the first
 917                                                    selected strip
 918                                                 */
 919                                                 if (accumulate) {
 920                                                         /* done */
 921                                                         break;
 922                                                 } else {
 923                                                         accumulate = true;
 924                                                 }
 925                                         } else if (_selection.selected (*i)) {
 926                                                 /* hit selected strip. if currently accumulating others,
 927                                                    we're done. if not accumulating others, start doing so.
 928                                                 */
 929                                                 found_another = true;
 930                                                 if (accumulate) {
 931                                                         /* done */
 932                                                         break;
 933                                                 } else {
 934                                                         accumulate = true;
 935                                                 }
 936                                         } else {
 937                                                 if (accumulate) {
 938                                                         tmp.push_back (*i);
 939                                                 }
 940                                         }
 941                                 }
 942
 943                                 if (found_another) {
 944                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 945                                                 _selection.add (*i);
 946                                         }
 947                                 } else
 948                                         _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
 949                         } else {
 950                                 _selection.set (strip);
 951                         }
 952                 }
 953         }
 954
 955         return true;
 956 }
 957
 958 void
 959 Mixer_UI::set_session (Session* sess)
 960 {
 961         SessionHandlePtr::set_session (sess);
 962
 963         if (_plugin_selector) {
 964                 _plugin_selector->set_session (_session);
 965         }
 966
 967         _group_tabs->set_session (sess);
 968
 969         if (_monitor_section) {
 970                 _monitor_section->set_session (_session);
 971         }
 972
 973         if (!_session) {
 974                 return;
 975         }
 976
 977         refill_favorite_plugins();
 978
 979         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 980         set_state (*node, 0);
 981
 982         update_title ();
 983
 984         initial_track_display ();
 985
 986         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_routes, this, _1), gui_context());
 987         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 988         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 989         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 990         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 991         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 992         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 993
 994         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_masters, this, _1), gui_context());
 995
 996         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 997
 998         route_groups_changed ();
 999
1000         if (_visible) {
1001                 show_window();
1002         }
1003         start_updating ();
1004 }
1005
1006 void
1007 Mixer_UI::session_going_away ()
1008 {
1009         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
1010
1011         _in_group_rebuild_or_clear = true;
1012         group_model->clear ();
1013         _in_group_rebuild_or_clear = false;
1014
1015         _selection.clear ();
1016         track_model->clear ();
1017
1018         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1019                 delete (*i);
1020         }
1021
1022         if (_monitor_section) {
1023                 _monitor_section->tearoff().hide_visible ();
1024         }
1025
1026         monitor_section_detached ();
1027
1028         strips.clear ();
1029
1030         stop_updating ();
1031
1032         SessionHandlePtr::session_going_away ();
1033
1034         _session = 0;
1035         update_title ();
1036 }
1037
1038 void
1039 Mixer_UI::track_visibility_changed (std::string const & path)
1040 {
1041         if (_session && _session->deletion_in_progress()) {
1042                 return;
1043         }
1044
1045         TreeIter iter;
1046
1047         if ((iter = track_model->get_iter (path))) {
1048
1049                 AxisView* av = (*iter)[stripable_columns.strip];
1050                 bool visible = (*iter)[stripable_columns.visible];
1051
1052                 if (av->set_marked_for_display (!visible)) {
1053                         update_track_visibility ();
1054                 }
1055         }
1056 }
1057
1058 void
1059 Mixer_UI::update_track_visibility ()
1060 {
1061         TreeModel::Children rows = track_model->children();
1062         TreeModel::Children::iterator i;
1063
1064         {
1065                 Unwinder<bool> uw (no_track_list_redisplay, true);
1066
1067                 for (i = rows.begin(); i != rows.end(); ++i) {
1068                         AxisView* av = (*i)[stripable_columns.strip];
1069                         (*i)[stripable_columns.visible] = av->marked_for_display ();
1070                 }
1071
1072                 /* force presentation catch up with visibility changes
1073                  */
1074
1075                 sync_presentation_info_from_treeview ();
1076         }
1077
1078         redisplay_track_list ();
1079 }
1080
1081 void
1082 Mixer_UI::show_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] = true;
1093                         av->set_marked_for_display (true);
1094                         update_track_visibility ();
1095                         break;
1096                 }
1097         }
1098 }
1099
1100 void
1101 Mixer_UI::hide_strip (MixerStrip* ms)
1102 {
1103         TreeModel::Children rows = track_model->children();
1104         TreeModel::Children::iterator i;
1105
1106         for (i = rows.begin(); i != rows.end(); ++i) {
1107
1108                 AxisView* av = (*i)[stripable_columns.strip];
1109                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1110                 if (strip == ms) {
1111                         (*i)[stripable_columns.visible] = false;
1112                         av->set_marked_for_display (false);
1113                         update_track_visibility ();
1114                         break;
1115                 }
1116         }
1117 }
1118
1119 gint
1120 Mixer_UI::start_updating ()
1121 {
1122     fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
1123     return 0;
1124 }
1125
1126 gint
1127 Mixer_UI::stop_updating ()
1128 {
1129     fast_screen_update_connection.disconnect();
1130     return 0;
1131 }
1132
1133 void
1134 Mixer_UI::fast_update_strips ()
1135 {
1136         if (_content.is_mapped () && _session) {
1137                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1138                         (*i)->fast_update ();
1139                 }
1140         }
1141 }
1142
1143 void
1144 Mixer_UI::set_all_strips_visibility (bool yn)
1145 {
1146         TreeModel::Children rows = track_model->children();
1147         TreeModel::Children::iterator i;
1148
1149         {
1150                 Unwinder<bool> uw (no_track_list_redisplay, true);
1151
1152                 for (i = rows.begin(); i != rows.end(); ++i) {
1153
1154                         AxisView* av = (*i)[stripable_columns.strip];
1155                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1156
1157                         if (!strip) {
1158                                 continue;
1159                         }
1160
1161                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1162                                 continue;
1163                         }
1164
1165                         (*i)[stripable_columns.visible] = yn;
1166                 }
1167         }
1168
1169         redisplay_track_list ();
1170 }
1171
1172
1173 void
1174 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
1175 {
1176         TreeModel::Children rows = track_model->children();
1177         TreeModel::Children::iterator i;
1178
1179         {
1180                 Unwinder<bool> uw (no_track_list_redisplay, true);
1181
1182                 for (i = rows.begin(); i != rows.end(); ++i) {
1183
1184                         AxisView* av = (*i)[stripable_columns.strip];
1185                         MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1186
1187                         if (!strip) {
1188                                 continue;
1189                         }
1190
1191                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1192                                 continue;
1193                         }
1194
1195                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
1196                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
1197
1198                         switch (tracks) {
1199                         case 0:
1200                                 (*i)[stripable_columns.visible] = yn;
1201                                 break;
1202
1203                         case 1:
1204                                 if (at) { /* track */
1205                                         (*i)[stripable_columns.visible] = yn;
1206                                 }
1207                                 break;
1208
1209                         case 2:
1210                                 if (!at && !mt) { /* bus */
1211                                         (*i)[stripable_columns.visible] = yn;
1212                                 }
1213                                 break;
1214
1215                         case 3:
1216                                 if (mt) { /* midi-track */
1217                                         (*i)[stripable_columns.visible] = yn;
1218                                 }
1219                                 break;
1220                         }
1221                 }
1222         }
1223
1224         redisplay_track_list ();
1225 }
1226
1227 void
1228 Mixer_UI::hide_all_routes ()
1229 {
1230         set_all_strips_visibility (false);
1231 }
1232
1233 void
1234 Mixer_UI::show_all_routes ()
1235 {
1236         set_all_strips_visibility (true);
1237 }
1238
1239 void
1240 Mixer_UI::show_all_audiobus ()
1241 {
1242         set_all_audio_midi_visibility (2, true);
1243 }
1244 void
1245 Mixer_UI::hide_all_audiobus ()
1246 {
1247         set_all_audio_midi_visibility (2, false);
1248 }
1249
1250 void
1251 Mixer_UI::show_all_audiotracks()
1252 {
1253         set_all_audio_midi_visibility (1, true);
1254 }
1255 void
1256 Mixer_UI::hide_all_audiotracks ()
1257 {
1258         set_all_audio_midi_visibility (1, false);
1259 }
1260
1261 void
1262 Mixer_UI::show_all_miditracks()
1263 {
1264         set_all_audio_midi_visibility (3, true);
1265 }
1266 void
1267 Mixer_UI::hide_all_miditracks ()
1268 {
1269         set_all_audio_midi_visibility (3, false);
1270 }
1271
1272 void
1273 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1274 {
1275         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1276         sync_presentation_info_from_treeview ();
1277 }
1278
1279 void
1280 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1281 {
1282         /* this happens as the second step of a DnD within the treeview as well
1283            as when a row/route is actually deleted.
1284
1285            if it was a deletion then we have to force a redisplay because
1286            order keys may not have changed.
1287         */
1288
1289         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1290         sync_presentation_info_from_treeview ();
1291
1292         if (_route_deletion_in_progress) {
1293                 redisplay_track_list ();
1294         }
1295 }
1296
1297 void
1298 Mixer_UI::spill_redisplay (boost::shared_ptr<VCA> vca)
1299 {
1300         TreeModel::Children rows = track_model->children();
1301         std::list<boost::shared_ptr<VCA> > vcas;
1302         vcas.push_back (vca);
1303
1304         for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
1305                 AxisView* av = (*i)[stripable_columns.strip];
1306                 VCAMasterStrip* vms = dynamic_cast<VCAMasterStrip*> (av);
1307                 if (vms && vms->vca()->slaved_to (vca)) {
1308                         vcas.push_back (vms->vca());
1309                 }
1310         }
1311
1312         for (TreeModel::Children::const_iterator i = rows.begin(); i != rows.end(); ++i) {
1313
1314                 AxisView* av = (*i)[stripable_columns.strip];
1315                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1316
1317                 if (!strip) {
1318                         /* we're in the middle of changing a row, don't worry */
1319                         continue;
1320                 }
1321
1322                 if (!strip->route()) {
1323                         /* non-route element */
1324                         continue;
1325                 }
1326
1327                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1328                         continue;
1329                 }
1330
1331                 bool slaved = false;
1332                 for (std::list<boost::shared_ptr<VCA> >::const_iterator m = vcas.begin(); m != vcas.end(); ++m) {
1333                         if (strip->route()->slaved_to (*m)) {
1334                                 slaved = true;
1335                                 break;
1336                         }
1337                 }
1338
1339                 if (slaved) {
1340
1341                         if (strip->packed()) {
1342                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1343                         } else {
1344                                 strip_packer.pack_start (*strip, false, false);
1345                                 strip->set_packed (true);
1346                         }
1347
1348                 } else {
1349
1350                         if (strip->packed()) {
1351                                 strip_packer.remove (*strip);
1352                                 strip->set_packed (false);
1353                         }
1354                 }
1355         }
1356 }
1357
1358 void
1359 Mixer_UI::redisplay_track_list ()
1360 {
1361         if (no_track_list_redisplay) {
1362                 return;
1363         }
1364
1365         boost::shared_ptr<Stripable> ss = spilled_strip.lock ();
1366         if (ss) {
1367                 boost::shared_ptr<VCA> sv = boost::dynamic_pointer_cast<VCA> (ss);
1368                 if (sv) {
1369                         spill_redisplay (sv);
1370                         return;
1371                 }
1372         }
1373
1374         TreeModel::Children rows = track_model->children();
1375         TreeModel::Children::iterator i;
1376         uint32_t n_masters = 0;
1377
1378         container_clear (vca_hpacker);
1379         vca_hpacker.pack_end (vca_scroller_base, true, true);
1380
1381         for (i = rows.begin(); i != rows.end(); ++i) {
1382
1383                 AxisView* s = (*i)[stripable_columns.strip];
1384                 bool const visible = (*i)[stripable_columns.visible];
1385                 boost::shared_ptr<Stripable> stripable = (*i)[stripable_columns.stripable];
1386
1387                 if (!s) {
1388                         /* we're in the middle of changing a row, don't worry */
1389                         continue;
1390                 }
1391
1392                 VCAMasterStrip* vms;
1393
1394                 if ((vms = dynamic_cast<VCAMasterStrip*> (s))) {
1395                         if (visible) {
1396                                 vca_hpacker.pack_start (*vms, false, false);
1397                                 vms->show ();
1398                                 n_masters++;
1399                         }
1400                         continue;
1401                 }
1402
1403                 MixerStrip* strip = dynamic_cast<MixerStrip*> (s);
1404
1405                 if (!strip) {
1406                         continue;
1407                 }
1408
1409                 if (visible) {
1410
1411                         if (strip->packed()) {
1412                                 strip_packer.reorder_child (*strip, -1); /* put at end */
1413                         } else {
1414                                 strip_packer.pack_start (*strip, false, false);
1415                                 strip->set_packed (true);
1416                         }
1417
1418                 } else {
1419
1420                         if (stripable->is_master() || stripable->is_monitor()) {
1421                                 /* do nothing, these cannot be hidden */
1422                         } else {
1423                                 if (strip->packed()) {
1424                                         strip_packer.remove (*strip);
1425                                         strip->set_packed (false);
1426                                 }
1427                         }
1428                 }
1429         }
1430
1431         /* update visibility of VCA assign buttons */
1432
1433         if (n_masters == 0) {
1434                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::remove_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1435                 vca_vpacker.hide ();
1436         } else {
1437                 UIConfiguration::instance().set_mixer_strip_visibility (VisibilityGroup::add_element (UIConfiguration::instance().get_mixer_strip_visibility(), X_("VCA")));
1438                 vca_vpacker.show ();
1439         }
1440
1441         _group_tabs->set_dirty ();
1442 }
1443
1444 void
1445 Mixer_UI::strip_width_changed ()
1446 {
1447         _group_tabs->set_dirty ();
1448
1449 #ifdef __APPLE__
1450         TreeModel::Children rows = track_model->children();
1451         TreeModel::Children::iterator i;
1452         long order;
1453
1454         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1455                 AxisView* av = (*i)[stripable_columns.strip];
1456                 MixerStrip* strip = dynamic_cast<MixerStrip*> (av);
1457
1458                 if (strip == 0) {
1459                         continue;
1460                 }
1461
1462                 bool visible = (*i)[stripable_columns.visible];
1463
1464                 if (visible) {
1465                         strip->queue_draw();
1466                 }
1467         }
1468 #endif
1469
1470 }
1471
1472 struct PresentationInfoMixerSorter
1473 {
1474         bool operator() (boost::shared_ptr<Stripable> a, boost::shared_ptr<Stripable> b) {
1475                 if (a->is_master()) {
1476                         /* master after everything else */
1477                         return false;
1478                 } else if (b->is_master()) {
1479                         /* everything else before master */
1480                         return true;
1481                 }
1482                 return a->presentation_info().order () < b->presentation_info().order ();
1483         }
1484 };
1485
1486 void
1487 Mixer_UI::initial_track_display ()
1488 {
1489         StripableList sl;
1490
1491         boost::shared_ptr<RouteList> routes = _session->get_routes();
1492
1493         for (RouteList::iterator r = routes->begin(); r != routes->end(); ++r) {
1494                 sl.push_back (*r);
1495         }
1496
1497         VCAList vcas = _session->vca_manager().vcas();
1498
1499         for (VCAList::iterator v = vcas.begin(); v != vcas.end(); ++v) {
1500                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
1501         }
1502
1503         sl.sort (PresentationInfoMixerSorter());
1504
1505         {
1506                 /* These are also used inside ::add_stripables() but we need
1507                  *  them here because we're going to clear the track_model also.
1508                  */
1509                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1510                 Unwinder<bool> uw2 (ignore_reorder, true);
1511
1512                 track_model->clear ();
1513                 add_stripables (sl);
1514         }
1515
1516         redisplay_track_list ();
1517         sync_treeview_from_presentation_info ();
1518 }
1519
1520 void
1521 Mixer_UI::show_track_list_menu ()
1522 {
1523         if (track_menu == 0) {
1524                 build_track_menu ();
1525         }
1526
1527         track_menu->popup (1, gtk_get_current_event_time());
1528 }
1529
1530 bool
1531 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1532 {
1533         if (Keyboard::is_context_menu_event (ev)) {
1534                 show_track_list_menu ();
1535                 return true;
1536         }
1537         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 1)) {
1538                 TreeModel::Path path;
1539                 TreeViewColumn* column;
1540                 int cellx, celly;
1541                 if (track_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1542                         TreeIter iter = track_model->get_iter (path);
1543                         if ((*iter)[stripable_columns.visible]) {
1544                                 boost::shared_ptr<ARDOUR::Stripable> s = (*iter)[stripable_columns.stripable];
1545                                 move_stripable_into_view (s);
1546                         }
1547                 }
1548         }
1549
1550         return false;
1551 }
1552
1553 void
1554 Mixer_UI::move_stripable_into_view (boost::shared_ptr<ARDOUR::Stripable> s)
1555 {
1556         if (!scroller.get_hscrollbar()) {
1557                 return;
1558         }
1559         if (s->presentation_info().special () || s->presentation_info().flag_match (PresentationInfo::VCA)) {
1560                 return;
1561         }
1562 #ifdef MIXBUS
1563         if (s->mixbus ()) {
1564                 return;
1565         }
1566 #endif
1567         bool found = false;
1568         int x0 = 0;
1569         for (list<MixerStrip *>::const_iterator i = strips.begin(); i != strips.end(); ++i) {
1570                 if ((*i)->route() == s) {
1571                         int y;
1572                         found = true;
1573                         (*i)->translate_coordinates (strip_packer, 0, 0, x0, y);
1574                         break;
1575                 }
1576         }
1577         if (!found) {
1578                 return;
1579         }
1580
1581         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1582         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), x0 - 1.0)));
1583 }
1584
1585 void
1586 Mixer_UI::build_track_menu ()
1587 {
1588         using namespace Menu_Helpers;
1589         using namespace Gtk;
1590
1591         track_menu = new Menu;
1592         track_menu->set_name ("ArdourContextMenu");
1593         MenuList& items = track_menu->items();
1594
1595         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1596         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1597         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1598         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1599         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1600         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1601         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1602         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1603
1604 }
1605
1606 void
1607 Mixer_UI::stripable_property_changed (const PropertyChange& what_changed, boost::weak_ptr<Stripable> ws)
1608 {
1609         if (!what_changed.contains (ARDOUR::Properties::hidden) && !what_changed.contains (ARDOUR::Properties::name)) {
1610                 return;
1611         }
1612
1613         boost::shared_ptr<Stripable> s = ws.lock ();
1614
1615         if (!s) {
1616                 return;
1617         }
1618
1619         TreeModel::Children rows = track_model->children();
1620         TreeModel::Children::iterator i;
1621
1622         for (i = rows.begin(); i != rows.end(); ++i) {
1623                 boost::shared_ptr<Stripable> ss = (*i)[stripable_columns.stripable];
1624
1625                 if (s == ss) {
1626
1627                         if (what_changed.contains (ARDOUR::Properties::name)) {
1628                                 (*i)[stripable_columns.text] = s->name();
1629                         }
1630
1631                         if (what_changed.contains (ARDOUR::Properties::hidden)) {
1632                                 (*i)[stripable_columns.visible] = !s->presentation_info().hidden();
1633                                 redisplay_track_list ();
1634                         }
1635
1636                         return;
1637                 }
1638         }
1639
1640         error << _("track display list item for renamed strip not found!") << endmsg;
1641 }
1642
1643 bool
1644 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1645 {
1646         TreeModel::Path path;
1647         TreeViewColumn* column;
1648         int cellx;
1649         int celly;
1650
1651         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1652                 _group_tabs->get_menu(0)->popup (1, ev->time);
1653                 return true;
1654         }
1655
1656         TreeIter iter = group_model->get_iter (path);
1657         if (!iter) {
1658                 _group_tabs->get_menu(0)->popup (1, ev->time);
1659                 return true;
1660         }
1661
1662         RouteGroup* group = (*iter)[group_columns.group];
1663
1664         if (Keyboard::is_context_menu_event (ev)) {
1665                 _group_tabs->get_menu(group)->popup (1, ev->time);
1666                 return true;
1667         }
1668
1669         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1670         case 1:
1671                 if (Keyboard::is_edit_event (ev)) {
1672                         if (group) {
1673                                 // edit_route_group (group);
1674 #ifdef __APPLE__
1675                                 group_display.queue_draw();
1676 #endif
1677                                 return true;
1678                         }
1679                 }
1680                 break;
1681
1682         case 0:
1683         {
1684                 bool visible = (*iter)[group_columns.visible];
1685                 (*iter)[group_columns.visible] = !visible;
1686 #ifdef __APPLE__
1687                 group_display.queue_draw();
1688 #endif
1689                 return true;
1690         }
1691
1692         default:
1693                 break;
1694         }
1695
1696         return false;
1697  }
1698
1699 void
1700 Mixer_UI::activate_all_route_groups ()
1701 {
1702         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1703 }
1704
1705 void
1706 Mixer_UI::disable_all_route_groups ()
1707 {
1708         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1709 }
1710
1711 void
1712 Mixer_UI::route_groups_changed ()
1713 {
1714         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1715
1716         _in_group_rebuild_or_clear = true;
1717
1718         /* just rebuild the while thing */
1719
1720         group_model->clear ();
1721
1722 #if 0
1723         /* this is currently not used,
1724          * Mixer_UI::group_display_button_press() has a case for it,
1725          * and a commented edit_route_group() but that's n/a since 2011.
1726          *
1727          * This code is left as reminder that
1728          * row[group_columns.group] = 0 has special meaning.
1729          */
1730         {
1731                 TreeModel::Row row;
1732                 row = *(group_model->append());
1733                 row[group_columns.visible] = true;
1734                 row[group_columns.text] = (_("-all-"));
1735                 row[group_columns.group] = 0;
1736         }
1737 #endif
1738
1739         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1740
1741         _group_tabs->set_dirty ();
1742         _in_group_rebuild_or_clear = false;
1743 }
1744
1745 void
1746 Mixer_UI::new_route_group ()
1747 {
1748         _group_tabs->run_new_group_dialog (0, false);
1749 }
1750
1751 void
1752 Mixer_UI::remove_selected_route_group ()
1753 {
1754         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1755         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1756
1757         if (rows.empty()) {
1758                 return;
1759         }
1760
1761         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1762         TreeIter iter;
1763
1764         /* selection mode is single, so rows.begin() is it */
1765
1766         if ((iter = group_model->get_iter (*i))) {
1767
1768                 RouteGroup* rg = (*iter)[group_columns.group];
1769
1770                 if (rg) {
1771                         _session->remove_route_group (*rg);
1772                 }
1773         }
1774 }
1775
1776 void
1777 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1778 {
1779         if (in_group_row_change) {
1780                 return;
1781         }
1782
1783         /* force an update of any mixer strips that are using this group,
1784            otherwise mix group names don't change in mixer strips
1785         */
1786
1787         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1788                 if ((*i)->route_group() == group) {
1789                         (*i)->route_group_changed();
1790                 }
1791         }
1792
1793         TreeModel::iterator i;
1794         TreeModel::Children rows = group_model->children();
1795         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1796
1797         in_group_row_change = true;
1798
1799         for (i = rows.begin(); i != rows.end(); ++i) {
1800                 if ((*i)[group_columns.group] == group) {
1801                         (*i)[group_columns.visible] = !group->is_hidden ();
1802                         (*i)[group_columns.text] = group->name ();
1803                         break;
1804                 }
1805         }
1806
1807         in_group_row_change = false;
1808
1809         if (change.contains (Properties::name)) {
1810                 _group_tabs->set_dirty ();
1811         }
1812
1813         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1814                 if ((*j)->route_group() == group) {
1815                         if (group->is_hidden ()) {
1816                                 hide_strip (*j);
1817                         } else {
1818                                 show_strip (*j);
1819                         }
1820                 }
1821         }
1822 }
1823
1824 void
1825 Mixer_UI::show_mixer_list (bool yn)
1826 {
1827         if (yn) {
1828                 list_vpacker.show ();
1829         } else {
1830                 list_vpacker.hide ();
1831         }
1832
1833         _show_mixer_list = yn;
1834 }
1835
1836 void
1837 Mixer_UI::show_monitor_section (bool yn)
1838 {
1839         if (!monitor_section()) {
1840                 return;
1841         }
1842         if (monitor_section()->tearoff().torn_off()) {
1843                 return;
1844         }
1845
1846         if (yn) {
1847                 monitor_section()->tearoff().show();
1848         } else {
1849                 monitor_section()->tearoff().hide();
1850         }
1851 }
1852
1853 void
1854 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1855 {
1856         RouteGroup* group;
1857         TreeIter iter;
1858
1859         if ((iter = group_model->get_iter (path))) {
1860
1861                 if ((group = (*iter)[group_columns.group]) == 0) {
1862                         return;
1863                 }
1864
1865                 if (new_text != group->name()) {
1866                         group->set_name (new_text);
1867                 }
1868         }
1869 }
1870
1871 void
1872 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1873 {
1874         RouteGroup* group;
1875
1876         if (in_group_row_change) {
1877                 return;
1878         }
1879
1880         if ((group = (*iter)[group_columns.group]) == 0) {
1881                 return;
1882         }
1883
1884         std::string name = (*iter)[group_columns.text];
1885
1886         if (name != group->name()) {
1887                 group->set_name (name);
1888         }
1889
1890         bool hidden = !(*iter)[group_columns.visible];
1891
1892         if (hidden != group->is_hidden ()) {
1893                 group->set_hidden (hidden, this);
1894         }
1895 }
1896
1897 /** Called when a group model row is deleted, but also when the model is
1898  *  reordered by a user drag-and-drop; the latter is what we are
1899  *  interested in here.
1900  */
1901 void
1902 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1903 {
1904         if (_in_group_rebuild_or_clear) {
1905                 return;
1906         }
1907
1908         /* Re-write the session's route group list so that the new order is preserved */
1909
1910         list<RouteGroup*> new_list;
1911
1912         Gtk::TreeModel::Children children = group_model->children();
1913         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1914                 RouteGroup* g = (*i)[group_columns.group];
1915                 if (g) {
1916                         new_list.push_back (g);
1917                 }
1918         }
1919
1920         _session->reorder_route_groups (new_list);
1921 }
1922
1923
1924 void
1925 Mixer_UI::add_route_group (RouteGroup* group)
1926 {
1927         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1928         bool focus = false;
1929
1930         in_group_row_change = true;
1931
1932         TreeModel::Row row = *(group_model->append());
1933         row[group_columns.visible] = !group->is_hidden ();
1934         row[group_columns.group] = group;
1935         if (!group->name().empty()) {
1936                 row[group_columns.text] = group->name();
1937         } else {
1938                 row[group_columns.text] = _("unnamed");
1939                 focus = true;
1940         }
1941
1942         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1943
1944         if (focus) {
1945                 TreeViewColumn* col = group_display.get_column (0);
1946                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (1));
1947                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1948         }
1949
1950         _group_tabs->set_dirty ();
1951
1952         in_group_row_change = false;
1953 }
1954
1955 bool
1956 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1957 {
1958         using namespace Menu_Helpers;
1959
1960         if (Keyboard::is_context_menu_event (ev)) {
1961                 ARDOUR_UI::instance()->add_route ();
1962                 return true;
1963         }
1964
1965         return false;
1966 }
1967
1968 void
1969 Mixer_UI::scroller_drag_data_received (const Glib::RefPtr<Gdk::DragContext>& context, int x, int y, const Gtk::SelectionData& data, guint info, guint time)
1970 {
1971         printf ("Mixer_UI::scroller_drag_data_received\n");
1972         if (data.get_target() != "PluginFavoritePtr") {
1973                 context->drag_finish (false, false, time);
1974                 return;
1975         }
1976
1977         const void * d = data.get_data();
1978         const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>* tv = reinterpret_cast<const Gtkmm2ext::DnDTreeView<ARDOUR::PluginPresetPtr>*>(d);
1979
1980         PluginPresetList nfos;
1981         TreeView* source;
1982         tv->get_object_drag_data (nfos, &source);
1983
1984         Route::ProcessorList pl;
1985         bool ok = false;
1986
1987         for (list<PluginPresetPtr>::const_iterator i = nfos.begin(); i != nfos.end(); ++i) {
1988                 PluginPresetPtr ppp = (*i);
1989                 PluginInfoPtr pip = ppp->_pip;
1990                 if (!pip->is_instrument ()) {
1991                         continue;
1992                 }
1993                 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);
1994                 ok = true;
1995         }
1996
1997         context->drag_finish (ok, false, time);
1998 }
1999
2000 void
2001 Mixer_UI::set_strip_width (Width w, bool save)
2002 {
2003         _strip_width = w;
2004
2005         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2006                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
2007         }
2008 }
2009
2010
2011 struct PluginStateSorter {
2012 public:
2013         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2014                 std::list<std::string>::const_iterator aiter = std::find(_user.begin(), _user.end(), (*a).unique_id);
2015                 std::list<std::string>::const_iterator biter = std::find(_user.begin(), _user.end(), (*b).unique_id);
2016                 if (aiter != _user.end() && biter != _user.end()) {
2017                         return std::distance (_user.begin(), aiter)  < std::distance (_user.begin(), biter);
2018                 }
2019                 if (aiter != _user.end()) {
2020                         return true;
2021                 }
2022                 if (biter != _user.end()) {
2023                         return false;
2024                 }
2025                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2026         }
2027
2028         PluginStateSorter(std::list<std::string> user) : _user (user)  {}
2029 private:
2030         std::list<std::string> _user;
2031 };
2032
2033 int
2034 Mixer_UI::set_state (const XMLNode& node, int version)
2035 {
2036         XMLProperty const * prop;
2037         LocaleGuard lg;
2038
2039         Tabbable::set_state (node, version);
2040
2041         if ((prop = node.property ("narrow-strips"))) {
2042                 if (string_is_affirmative (prop->value())) {
2043                         set_strip_width (Narrow);
2044                 } else {
2045                         set_strip_width (Wide);
2046                 }
2047         }
2048
2049         if ((prop = node.property ("show-mixer"))) {
2050                 if (string_is_affirmative (prop->value())) {
2051                        _visible = true;
2052                 }
2053         }
2054
2055         if ((prop = node.property ("maximised"))) {
2056                 bool yn = string_is_affirmative (prop->value());
2057                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
2058                 assert (act);
2059                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2060                 bool fs = tact && tact->get_active();
2061                 if (yn ^ fs) {
2062                         ActionManager::do_action ("Common", "ToggleMaximalMixer");
2063                 }
2064         }
2065
2066         if ((prop = node.property ("show-mixer-list"))) {
2067                 bool yn = string_is_affirmative (prop->value());
2068                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMixerList"));
2069                 assert (act);
2070                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2071
2072                 /* do it twice to force the change */
2073                 tact->set_active (!yn);
2074                 tact->set_active (yn);
2075         }
2076
2077
2078         XMLNode* plugin_order;
2079         if ((plugin_order = find_named_node (node, "PluginOrder")) != 0) {
2080                 store_current_favorite_order ();
2081                 std::list<string> order;
2082                 const XMLNodeList& kids = plugin_order->children("PluginInfo");
2083                 XMLNodeConstIterator i;
2084                 for (i = kids.begin(); i != kids.end(); ++i) {
2085                         if ((prop = (*i)->property ("unique-id"))) {
2086                                 std::string unique_id = prop->value();
2087                                 order.push_back (unique_id);
2088                                 if ((prop = (*i)->property ("expanded"))) {
2089                                         favorite_ui_state[unique_id] = string_is_affirmative (prop->value());
2090                                 }
2091                         }
2092                 }
2093                 PluginStateSorter cmp (order);
2094                 favorite_order.sort (cmp);
2095                 sync_treeview_from_favorite_order ();
2096         }
2097         return 0;
2098 }
2099
2100 XMLNode&
2101 Mixer_UI::get_state ()
2102 {
2103         XMLNode* node = new XMLNode (X_("Mixer"));
2104         char buf[128];
2105         LocaleGuard lg;
2106
2107         node->add_child_nocopy (Tabbable::get_state());
2108
2109         snprintf(buf,sizeof(buf), "%f", rhs_pane1.get_divider());
2110         node->add_property(X_("mixer-rhs-pane1-pos"), string(buf));
2111         snprintf(buf,sizeof(buf), "%f", rhs_pane2.get_divider());
2112         node->add_property(X_("mixer-rhs_pane2-pos"), string(buf));
2113         snprintf(buf,sizeof(buf), "%f", list_hpane.get_divider());
2114         node->add_property(X_("mixer-list-hpane-pos"), string(buf));
2115         snprintf(buf,sizeof(buf), "%f", inner_pane.get_divider());
2116         node->add_property(X_("mixer-inner-pane-pos"), string(buf));
2117
2118         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
2119         node->add_property ("show-mixer", _visible ? "yes" : "no");
2120         node->add_property ("show-mixer-list", _show_mixer_list ? "yes" : "no");
2121         node->add_property ("maximised", _maximised ? "yes" : "no");
2122
2123         store_current_favorite_order ();
2124         XMLNode* plugin_order = new XMLNode ("PluginOrder");
2125         int cnt = 0;
2126         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i, ++cnt) {
2127                 XMLNode* p = new XMLNode ("PluginInfo");
2128                 p->add_property ("sort", cnt);
2129                 p->add_property ("unique-id", (*i)->unique_id);
2130                 if (favorite_ui_state.find ((*i)->unique_id) != favorite_ui_state.end ()) {
2131                         p->add_property ("expanded", favorite_ui_state[(*i)->unique_id]);
2132                 }
2133                 plugin_order->add_child_nocopy (*p);
2134         }
2135         node->add_child_nocopy (*plugin_order);
2136
2137         return *node;
2138 }
2139
2140 void
2141 Mixer_UI::scroll_left ()
2142 {
2143         if (!scroller.get_hscrollbar()) return;
2144         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2145         int sc_w = scroller.get_width();
2146         int sp_w = strip_packer.get_width();
2147         if (sp_w <= sc_w) {
2148                 return;
2149         }
2150         int lp = adj->get_value();
2151         int lm = 0;
2152         using namespace Gtk::Box_Helpers;
2153         const BoxList& strips = strip_packer.children();
2154         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2155                 lm += i->get_widget()->get_width ();
2156                 if (lm >= lp) {
2157                         lm -= i->get_widget()->get_width ();
2158                         break;
2159                 }
2160         }
2161         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2162 }
2163
2164 void
2165 Mixer_UI::scroll_right ()
2166 {
2167         if (!scroller.get_hscrollbar()) return;
2168         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
2169         int sc_w = scroller.get_width();
2170         int sp_w = strip_packer.get_width();
2171         if (sp_w <= sc_w) {
2172                 return;
2173         }
2174         int lp = adj->get_value();
2175         int lm = 0;
2176         using namespace Gtk::Box_Helpers;
2177         const BoxList& strips = strip_packer.children();
2178         for (BoxList::const_iterator i = strips.begin(); i != strips.end(); ++i) {
2179                 lm += i->get_widget()->get_width ();
2180                 if (lm > lp + 1) {
2181                         break;
2182                 }
2183         }
2184         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), min (adj->get_upper(), lm - 1.0)));
2185 }
2186
2187 bool
2188 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
2189 {
2190         switch (ev->direction) {
2191         case GDK_SCROLL_LEFT:
2192                 scroll_left ();
2193                 return true;
2194         case GDK_SCROLL_UP:
2195                 if (ev->state & Keyboard::TertiaryModifier) {
2196                         scroll_left ();
2197                         return true;
2198                 }
2199                 return false;
2200
2201         case GDK_SCROLL_RIGHT:
2202                 scroll_right ();
2203                 return true;
2204
2205         case GDK_SCROLL_DOWN:
2206                 if (ev->state & Keyboard::TertiaryModifier) {
2207                         scroll_right ();
2208                         return true;
2209                 }
2210                 return false;
2211         }
2212
2213         return false;
2214 }
2215
2216
2217 void
2218 Mixer_UI::parameter_changed (string const & p)
2219 {
2220         if (p == "show-group-tabs") {
2221                 bool const s = _session->config.get_show_group_tabs ();
2222                 if (s) {
2223                         _group_tabs->show ();
2224                 } else {
2225                         _group_tabs->hide ();
2226                 }
2227         } else if (p == "default-narrow_ms") {
2228                 bool const s = UIConfiguration::instance().get_default_narrow_ms ();
2229                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2230                         (*i)->set_width_enum (s ? Narrow : Wide, this);
2231                 }
2232         } else if (p == "use-monitor-bus") {
2233                 if (_session && !_session->monitor_out()) {
2234                         monitor_section_detached ();
2235                 }
2236         }
2237 }
2238
2239 void
2240 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
2241 {
2242         g->set_active (a, this);
2243 }
2244
2245 PluginSelector*
2246 Mixer_UI::plugin_selector()
2247 {
2248 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
2249         if (!_plugin_selector)
2250                 _plugin_selector = new PluginSelector (PluginManager::instance());
2251 #endif
2252
2253         return _plugin_selector;
2254 }
2255
2256 void
2257 Mixer_UI::setup_track_display ()
2258 {
2259         track_model = ListStore::create (stripable_columns);
2260         track_display.set_model (track_model);
2261         track_display.append_column (_("Show"), stripable_columns.visible);
2262         track_display.append_column (_("Strips"), stripable_columns.text);
2263         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
2264         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
2265         track_display.get_column (0)->set_expand(false);
2266         track_display.get_column (1)->set_expand(true);
2267         track_display.get_column (1)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
2268         track_display.set_name (X_("EditGroupList"));
2269         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
2270         track_display.set_reorderable (true);
2271         track_display.set_headers_visible (true);
2272         track_display.set_can_focus(false);
2273
2274         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
2275         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
2276
2277         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (0));
2278         track_list_visible_cell->property_activatable() = true;
2279         track_list_visible_cell->property_radio() = false;
2280         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
2281
2282         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
2283
2284         track_display_scroller.add (track_display);
2285         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
2286
2287         VBox* v = manage (new VBox);
2288         v->show ();
2289         v->pack_start (track_display_scroller, true, true);
2290
2291         Button* b = manage (new Button);
2292         b->show ();
2293         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
2294         w->show ();
2295         b->add (*w);
2296
2297         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
2298
2299         v->pack_start (*b, false, false);
2300
2301         track_display_frame.set_name("BaseFrame");
2302         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
2303         track_display_frame.add (*v);
2304
2305         track_display_scroller.show();
2306         track_display_frame.show();
2307         track_display.show();
2308 }
2309
2310 void
2311 Mixer_UI::new_track_or_bus ()
2312 {
2313         ARDOUR_UI::instance()->add_route ();
2314 }
2315
2316 void
2317 Mixer_UI::update_title ()
2318 {
2319         if (!own_window()) {
2320                 return;
2321         }
2322
2323         if (_session) {
2324                 string n;
2325
2326                 if (_session->snap_name() != _session->name()) {
2327                         n = _session->snap_name ();
2328                 } else {
2329                         n = _session->name ();
2330                 }
2331
2332                 if (_session->dirty ()) {
2333                         n = "*" + n;
2334                 }
2335
2336                 WindowTitle title (n);
2337                 title += S_("Window|Mixer");
2338                 title += Glib::get_application_name ();
2339                 own_window()->set_title (title.get_string());
2340
2341         } else {
2342
2343                 WindowTitle title (S_("Window|Mixer"));
2344                 title += Glib::get_application_name ();
2345                 own_window()->set_title (title.get_string());
2346         }
2347 }
2348
2349 MixerStrip*
2350 Mixer_UI::strip_by_x (int x)
2351 {
2352         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
2353                 int x1, x2, y;
2354
2355                 (*i)->translate_coordinates (_content, 0, 0, x1, y);
2356                 x2 = x1 + (*i)->get_width();
2357
2358                 if (x >= x1 && x <= x2) {
2359                         return (*i);
2360                 }
2361         }
2362
2363         return 0;
2364 }
2365
2366 void
2367 Mixer_UI::set_axis_targets_for_operation ()
2368 {
2369         _axis_targets.clear ();
2370
2371         if (!_selection.empty()) {
2372                 _axis_targets = _selection.axes;
2373                 return;
2374         }
2375
2376 //  removed "implicit" selections of strips, after discussion on IRC
2377
2378 }
2379
2380 void
2381 Mixer_UI::monitor_section_going_away ()
2382 {
2383         if (_monitor_section) {
2384                 monitor_section_detached ();
2385                 out_packer.remove (_monitor_section->tearoff());
2386                 _monitor_section->set_session (0);
2387                 delete _monitor_section;
2388                 _monitor_section = 0;
2389         }
2390 }
2391
2392 void
2393 Mixer_UI::toggle_midi_input_active (bool flip_others)
2394 {
2395         boost::shared_ptr<RouteList> rl (new RouteList);
2396         bool onoff = false;
2397
2398         set_axis_targets_for_operation ();
2399
2400         for (AxisViewSelection::iterator r = _axis_targets.begin(); r != _axis_targets.end(); ++r) {
2401                 boost::shared_ptr<MidiTrack> mt = boost::dynamic_pointer_cast<MidiTrack> ((*r)->stripable());
2402
2403                 if (mt) {
2404                         rl->push_back (mt);
2405                         onoff = !mt->input_active();
2406                 }
2407         }
2408
2409         _session->set_exclusive_input_active (rl, onoff, flip_others);
2410 }
2411
2412 void
2413 Mixer_UI::maximise_mixer_space ()
2414 {
2415         if (!own_window()) {
2416                 return;
2417         }
2418
2419         if (_maximised) {
2420                 return;
2421         }
2422
2423         _window->fullscreen ();
2424         _maximised = true;
2425 }
2426
2427 void
2428 Mixer_UI::restore_mixer_space ()
2429 {
2430         if (!own_window()) {
2431                 return;
2432         }
2433
2434         if (!_maximised) {
2435                 return;
2436         }
2437
2438         own_window()->unfullscreen();
2439         _maximised = false;
2440 }
2441
2442 void
2443 Mixer_UI::monitor_section_attached ()
2444 {
2445         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2446         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2447         act->set_sensitive (true);
2448         tact->set_active ();
2449 }
2450
2451 void
2452 Mixer_UI::monitor_section_detached ()
2453 {
2454         Glib::RefPtr<Action> act = ActionManager::get_action ("Common", "ToggleMonitorSection");
2455         act->set_sensitive (false);
2456 }
2457
2458 void
2459 Mixer_UI::store_current_favorite_order ()
2460 {
2461         typedef Gtk::TreeModel::Children type_children;
2462         type_children children = favorite_plugins_model->children();
2463         favorite_order.clear();
2464         for(type_children::iterator iter = children.begin(); iter != children.end(); ++iter)
2465         {
2466                 Gtk::TreeModel::Row row = *iter;
2467                 ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2468                 favorite_order.push_back (ppp->_pip);
2469                 std::string name = row[favorite_plugins_columns.name];
2470                 favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2471         }
2472 }
2473
2474 void
2475 Mixer_UI::save_favorite_ui_state (const TreeModel::iterator& iter, const TreeModel::Path& path)
2476 {
2477         Gtk::TreeModel::Row row = *iter;
2478         ARDOUR::PluginPresetPtr ppp = row[favorite_plugins_columns.plugin];
2479         assert (ppp);
2480         favorite_ui_state[(*ppp->_pip).unique_id] = favorite_plugins_display.row_expanded (favorite_plugins_model->get_path(iter));
2481 }
2482
2483 void
2484 Mixer_UI::refiller (PluginInfoList& result, const PluginInfoList& plugs)
2485 {
2486         PluginManager& manager (PluginManager::instance());
2487         for (PluginInfoList::const_iterator i = plugs.begin(); i != plugs.end(); ++i) {
2488                 if (manager.get_status (*i) != PluginManager::Favorite) {
2489                         continue;
2490                 }
2491                 result.push_back (*i);
2492         }
2493 }
2494
2495 struct PluginCustomSorter {
2496 public:
2497         bool operator() (PluginInfoPtr a, PluginInfoPtr b) const {
2498                 PluginInfoList::const_iterator aiter = _user.begin();
2499                 PluginInfoList::const_iterator biter = _user.begin();
2500                 while (aiter != _user.end()) { if ((*aiter)->unique_id == a->unique_id) { break; } ++aiter; }
2501                 while (biter != _user.end()) { if ((*biter)->unique_id == b->unique_id) { break; } ++biter; }
2502
2503                 if (aiter != _user.end() && biter != _user.end()) {
2504                         return std::distance (_user.begin(), aiter) < std::distance (_user.begin(), biter);
2505                 }
2506                 if (aiter != _user.end()) {
2507                         return true;
2508                 }
2509                 if (biter != _user.end()) {
2510                         return false;
2511                 }
2512                 return ARDOUR::cmp_nocase((*a).name, (*b).name) == -1;
2513         }
2514         PluginCustomSorter(PluginInfoList user) : _user (user)  {}
2515 private:
2516         PluginInfoList _user;
2517 };
2518
2519 void
2520 Mixer_UI::refill_favorite_plugins ()
2521 {
2522         PluginInfoList plugs;
2523         PluginManager& mgr (PluginManager::instance());
2524
2525 #ifdef LV2_SUPPORT
2526         refiller (plugs, mgr.lv2_plugin_info ());
2527 #endif
2528 #ifdef WINDOWS_VST_SUPPORT
2529         refiller (plugs, mgr.windows_vst_plugin_info ());
2530 #endif
2531 #ifdef LXVST_SUPPORT
2532         refiller (plugs, mgr.lxvst_plugin_info ());
2533 #endif
2534 #ifdef MACVST_SUPPORT
2535         refiller (plugs, mgr.mac_vst_plugin_info ());
2536 #endif
2537 #ifdef AUDIOUNIT_SUPPORT
2538         refiller (plugs, mgr.au_plugin_info ());
2539 #endif
2540         refiller (plugs, mgr.ladspa_plugin_info ());
2541         refiller (plugs, mgr.lua_plugin_info ());
2542
2543         store_current_favorite_order ();
2544
2545         PluginCustomSorter cmp (favorite_order);
2546         plugs.sort (cmp);
2547
2548         favorite_order = plugs;
2549
2550         sync_treeview_from_favorite_order ();
2551 }
2552
2553 void
2554 Mixer_UI::sync_treeview_favorite_ui_state (const TreeModel::Path& path, const TreeModel::iterator&)
2555 {
2556         TreeIter iter;
2557         if (!(iter = favorite_plugins_model->get_iter (path))) {
2558                 return;
2559         }
2560         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2561         if (!ppp) {
2562                 return;
2563         }
2564         PluginInfoPtr pip = ppp->_pip;
2565         if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2566                 if (favorite_ui_state[pip->unique_id]) {
2567                         favorite_plugins_display.expand_row (path, true);
2568                 }
2569         }
2570 }
2571
2572 void
2573 Mixer_UI::sync_treeview_from_favorite_order ()
2574 {
2575         favorite_plugins_model->clear ();
2576         for (PluginInfoList::const_iterator i = favorite_order.begin(); i != favorite_order.end(); ++i) {
2577                 PluginInfoPtr pip = (*i);
2578
2579                 TreeModel::Row newrow = *(favorite_plugins_model->append());
2580                 newrow[favorite_plugins_columns.name] = (*i)->name;
2581                 newrow[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip));
2582                 if (!_session) {
2583                         continue;
2584                 }
2585
2586                 vector<ARDOUR::Plugin::PresetRecord> presets = (*i)->get_presets (true);
2587                 for (vector<ARDOUR::Plugin::PresetRecord>::const_iterator j = presets.begin(); j != presets.end(); ++j) {
2588                         Gtk::TreeModel::Row child_row = *(favorite_plugins_model->append (newrow.children()));
2589                         child_row[favorite_plugins_columns.name] = (*j).label;
2590                         child_row[favorite_plugins_columns.plugin] = PluginPresetPtr (new PluginPreset(pip, &(*j)));
2591                 }
2592                 if (favorite_ui_state.find (pip->unique_id) != favorite_ui_state.end ()) {
2593                         if (favorite_ui_state[pip->unique_id]) {
2594                                 favorite_plugins_display.expand_row (favorite_plugins_model->get_path(newrow), true);
2595                         }
2596                 }
2597         }
2598 }
2599
2600 void
2601 Mixer_UI::popup_note_context_menu (GdkEventButton *ev)
2602 {
2603         using namespace Gtk::Menu_Helpers;
2604
2605         Gtk::Menu* m = manage (new Menu);
2606         MenuList& items = m->items ();
2607
2608         if (_selection.axes.empty()) {
2609                 items.push_back (MenuElem (_("No Track/Bus is selected.")));
2610         } else {
2611                 items.push_back (MenuElem (_("Add at the top"),
2612                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddTop)));
2613                 items.push_back (MenuElem (_("Add Pre-Fader"),
2614                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPreFader)));
2615                 items.push_back (MenuElem (_("Add Post-Fader"),
2616                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddPostFader)));
2617                 items.push_back (MenuElem (_("Add at the end"),
2618                                         sigc::bind (sigc::mem_fun (*this, &Mixer_UI::add_selected_processor), AddBottom)));
2619         }
2620
2621         items.push_back (SeparatorElem());
2622
2623         items.push_back (MenuElem (_("Remove from favorites"), sigc::mem_fun (*this, &Mixer_UI::remove_selected_from_favorites)));
2624
2625         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2626         if (ppp && ppp->_preset.valid && ppp->_preset.user) {
2627                 // we cannot currently delete AU presets
2628                 if (!ppp->_pip || ppp->_pip->type != AudioUnit) {
2629                         items.push_back (MenuElem (_("Delete Preset"), sigc::mem_fun (*this, &Mixer_UI::delete_selected_preset)));
2630                 }
2631         }
2632
2633         m->popup (ev->button, ev->time);
2634 }
2635
2636 bool
2637 Mixer_UI::plugin_row_button_press (GdkEventButton *ev)
2638 {
2639         if ((ev->type == GDK_BUTTON_PRESS) && (ev->button == 3) ) {
2640                 TreeModel::Path path;
2641                 TreeViewColumn* column;
2642                 int cellx, celly;
2643                 if (favorite_plugins_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
2644                         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2645                         if (selection) {
2646                                 selection->unselect_all();
2647                                 selection->select(path);
2648                         }
2649                 }
2650                 ARDOUR::PluginPresetPtr ppp = selected_plugin();
2651                 if (ppp) {
2652                         popup_note_context_menu (ev);
2653                 }
2654         }
2655         return false;
2656 }
2657
2658
2659 PluginPresetPtr
2660 Mixer_UI::selected_plugin ()
2661 {
2662         Glib::RefPtr<Gtk::TreeView::Selection> selection = favorite_plugins_display.get_selection();
2663         if (!selection) {
2664                 return PluginPresetPtr();
2665         }
2666         Gtk::TreeModel::iterator iter = selection->get_selected();
2667         if (!iter) {
2668                 return PluginPresetPtr();
2669         }
2670         return (*iter)[favorite_plugins_columns.plugin];
2671 }
2672
2673 void
2674 Mixer_UI::add_selected_processor (ProcessorPosition pos)
2675 {
2676         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2677         if (ppp) {
2678                 add_favorite_processor (ppp, pos);
2679         }
2680 }
2681
2682 void
2683 Mixer_UI::delete_selected_preset ()
2684 {
2685         if (!_session) {
2686                 return;
2687         }
2688         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2689         if (!ppp || !ppp->_preset.valid || !ppp->_preset.user) {
2690                 return;
2691         }
2692         PluginPtr plugin = ppp->_pip->load (*_session);
2693         plugin->get_presets();
2694         plugin->remove_preset (ppp->_preset.label);
2695 }
2696
2697 void
2698 Mixer_UI::remove_selected_from_favorites ()
2699 {
2700         ARDOUR::PluginPresetPtr ppp = selected_plugin();
2701         if (!ppp) {
2702                 return;
2703         }
2704         PluginManager::PluginStatusType status = PluginManager::Normal;
2705         PluginManager& manager (PluginManager::instance());
2706
2707         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2708         manager.save_statuses ();
2709 }
2710
2711 void
2712 Mixer_UI::plugin_row_activated (const TreeModel::Path& path, TreeViewColumn* column)
2713 {
2714         TreeIter iter;
2715         if (!(iter = favorite_plugins_model->get_iter (path))) {
2716                 return;
2717         }
2718         ARDOUR::PluginPresetPtr ppp = (*iter)[favorite_plugins_columns.plugin];
2719         add_favorite_processor (ppp, AddPreFader); // TODO: preference?!
2720 }
2721
2722 void
2723 Mixer_UI::add_favorite_processor (ARDOUR::PluginPresetPtr ppp, ProcessorPosition pos)
2724 {
2725         if (!_session || _selection.axes.empty()) {
2726                 return;
2727         }
2728
2729         PluginInfoPtr pip = ppp->_pip;
2730         for (AxisViewSelection::iterator i = _selection.axes.begin(); i != _selection.axes.end(); ++i) {
2731                 boost::shared_ptr<ARDOUR::Route> rt = boost::dynamic_pointer_cast<ARDOUR::Route> ((*i)->stripable());
2732
2733                 if (!rt) {
2734                         continue;
2735                 }
2736
2737                 PluginPtr p = pip->load (*_session);
2738
2739                 if (!p) {
2740                         continue;
2741                 }
2742
2743                 if (ppp->_preset.valid) {
2744                         p->load_preset (ppp->_preset);
2745                 }
2746
2747                 Route::ProcessorStreams err;
2748                 boost::shared_ptr<Processor> processor (new PluginInsert (*_session, p));
2749
2750                 switch (pos) {
2751                         case AddTop:
2752                                 rt->add_processor_by_index (processor, 0, &err, Config->get_new_plugins_active ());
2753                                 break;
2754                         case AddPreFader:
2755                                 rt->add_processor (processor, PreFader, &err, Config->get_new_plugins_active ());
2756                                 break;
2757                         case AddPostFader:
2758                                 {
2759                                         int idx = 0;
2760                                         int pos = 0;
2761                                         for (;;++idx) {
2762                                                 boost::shared_ptr<Processor> np = rt->nth_processor (idx);
2763                                                 if (!np) {
2764                                                         break;
2765                                                 }
2766                                                 if (!np->display_to_user()) {
2767                                                         continue;
2768                                                 }
2769                                                 if (boost::dynamic_pointer_cast<Amp> (np) && // Fader, not Trim
2770                                                                 boost::dynamic_pointer_cast<Amp> (np)->gain_control()->parameter().type() == GainAutomation) {
2771                                                         break;
2772                                                 }
2773                                                 ++pos;
2774                                         }
2775                                         rt->add_processor_by_index (processor, ++pos, &err, Config->get_new_plugins_active ());
2776                                 }
2777                                 break;
2778                         case AddBottom:
2779                                 rt->add_processor_by_index (processor, -1, &err, Config->get_new_plugins_active ());
2780                                 break;
2781                 }
2782         }
2783 }
2784
2785 bool
2786 PluginTreeStore::row_drop_possible_vfunc(const Gtk::TreeModel::Path& dest, const Gtk::SelectionData& data) const
2787 {
2788         if (data.get_target() != "GTK_TREE_MODEL_ROW") {
2789                 return false;
2790         }
2791
2792         // only allow to re-order top-level items
2793         TreePath src;
2794         if (TreePath::get_from_selection_data (data, src)) {
2795                 if (src.up() && src.up()) {
2796                         return false;
2797                 }
2798         }
2799
2800         // don't allow to drop as child-rows.
2801         Gtk::TreeModel::Path _dest = dest; // un const
2802         const bool is_child = _dest.up (); // explicit bool for clang
2803         if (!is_child || _dest.empty ()) {
2804                 return true;
2805         }
2806         return false;
2807 }
2808
2809 void
2810 Mixer_UI::plugin_drop (const Glib::RefPtr<Gdk::DragContext>&, const Gtk::SelectionData& data)
2811 {
2812         if (data.get_target() != "PluginPresetPtr") {
2813                 return;
2814         }
2815         if (data.get_length() != sizeof (PluginPresetPtr)) {
2816                 return;
2817         }
2818         const void *d = data.get_data();
2819         const PluginPresetPtr ppp = *(static_cast<const PluginPresetPtr*> (d));
2820
2821         PluginManager::PluginStatusType status = PluginManager::Favorite;
2822         PluginManager& manager (PluginManager::instance());
2823
2824         manager.set_status (ppp->_pip->type, ppp->_pip->unique_id, status);
2825         manager.save_statuses ();
2826 }
2827
2828 void
2829 Mixer_UI::do_vca_assign (boost::shared_ptr<VCA> vca)
2830 {
2831         /* call protected MixerActor:: method */
2832         vca_assign (vca);
2833 }
2834
2835 void
2836 Mixer_UI::do_vca_unassign (boost::shared_ptr<VCA> vca)
2837 {
2838         /* call protected MixerActor:: method */
2839         vca_unassign (vca);
2840 }
2841
2842 void
2843 Mixer_UI::show_spill (boost::shared_ptr<Stripable> s)
2844 {
2845         boost::shared_ptr<Stripable> ss = spilled_strip.lock();
2846         if (ss != s) {
2847                 spilled_strip = s;
2848                 show_spill_change (s); /* EMIT SIGNAL */
2849                 if (s) {
2850                         _group_tabs->hide ();
2851                 } else {
2852                         _group_tabs->show ();
2853                 }
2854                 redisplay_track_list ();
2855         }
2856 }
2857
2858 bool
2859 Mixer_UI::showing_spill_for (boost::shared_ptr<Stripable> s) const
2860 {
2861         return s == spilled_strip.lock();
2862 }
2863
2864 void
2865 Mixer_UI::register_actions ()
2866 {
2867         Glib::RefPtr<ActionGroup> group = myactions.create_action_group (X_("Mixer"));
2868
2869         myactions.register_action (group, "solo", _("Toggle Solo on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::solo_action));
2870         myactions.register_action (group, "mute", _("Toggle Mute on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::mute_action));
2871         myactions.register_action (group, "recenable", _("Toggle Rec-enable on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::rec_enable_action));
2872         myactions.register_action (group, "increment-gain", _("Decrease Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_up_action));
2873         myactions.register_action (group, "decrement-gain", _("Increase Gain on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::step_gain_down_action));
2874         myactions.register_action (group, "unity-gain", _("Set Gain to 0dB on Mixer-Selected Tracks/Busses"), sigc::mem_fun (*this, &Mixer_UI::unity_gain_action));
2875
2876
2877         myactions.register_action (group, "copy-processors", _("Copy Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::copy_processors));
2878         myactions.register_action (group, "cut-processors", _("Cut Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::cut_processors));
2879         myactions.register_action (group, "paste-processors", _("Paste Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::paste_processors));
2880         myactions.register_action (group, "delete-processors", _("Delete Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::delete_processors));
2881         myactions.register_action (group, "select-all-processors", _("Select All (visible) Processors"), sigc::mem_fun (*this, &Mixer_UI::select_all_processors));
2882         myactions.register_action (group, "toggle-processors", _("Toggle Selected Processors"), sigc::mem_fun (*this, &Mixer_UI::toggle_processors));
2883         myactions.register_action (group, "ab-plugins", _("Toggle Selected Plugins"), sigc::mem_fun (*this, &Mixer_UI::ab_plugins));
2884         myactions.register_action (group, "select-none", _("Deselect all strips and processors"), sigc::mem_fun (*this, &Mixer_UI::select_none));
2885
2886         myactions.register_action (group, "scroll-left", _("Scroll Mixer Window to the left"), sigc::mem_fun (*this, &Mixer_UI::scroll_left));
2887         myactions.register_action (group, "scroll-right", _("Scroll Mixer Window to the right"), sigc::mem_fun (*this, &Mixer_UI::scroll_right));
2888
2889         myactions.register_action (group, "toggle-midi-input-active", _("Toggle MIDI Input Active for Mixer-Selected Tracks/Busses"),
2890                                    sigc::bind (sigc::mem_fun (*this, &Mixer_UI::toggle_midi_input_active), false));
2891 }
2892
2893 void
2894 Mixer_UI::load_bindings ()
2895 {
2896         bindings = Bindings::get_bindings (X_("Mixer"), myactions);
2897 }
2898
2899 template<class T> void
2900 Mixer_UI::control_action (boost::shared_ptr<T> (Stripable::*get_control)() const)
2901 {
2902         boost::shared_ptr<ControlList> cl (new ControlList);
2903         boost::shared_ptr<AutomationControl> ac;
2904         bool val = false;
2905         bool have_val = false;
2906
2907         set_axis_targets_for_operation ();
2908
2909         BOOST_FOREACH(AxisView* r, _axis_targets) {
2910                 boost::shared_ptr<Stripable> s = r->stripable();
2911                 if (s) {
2912                         ac = (s.get()->*get_control)();
2913                         if (ac) {
2914                                 cl->push_back (ac);
2915                                 if (!have_val) {
2916                                         val = !ac->get_value();
2917                                         have_val = true;
2918                                 }
2919                         }
2920                 }
2921         }
2922
2923         _session->set_controls (cl,  val, Controllable::UseGroup);
2924 }
2925
2926 void
2927 Mixer_UI::solo_action ()
2928 {
2929         control_action (&Stripable::solo_control);
2930 }
2931
2932 void
2933 Mixer_UI::mute_action ()
2934 {
2935         control_action (&Stripable::mute_control);
2936 }
2937
2938 void
2939 Mixer_UI::rec_enable_action ()
2940 {
2941         control_action (&Stripable::rec_enable_control);
2942 }
2943
2944 void
2945 Mixer_UI::step_gain_up_action ()
2946 {
2947         set_axis_targets_for_operation ();
2948
2949         BOOST_FOREACH(AxisView* r, _axis_targets) {
2950                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2951                 if (ms) {
2952                         ms->step_gain_up ();
2953                 }
2954         }
2955 }
2956
2957 void
2958 Mixer_UI::step_gain_down_action ()
2959 {
2960         set_axis_targets_for_operation ();
2961
2962         BOOST_FOREACH(AxisView* r, _axis_targets) {
2963                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
2964                 if (ms) {
2965                         ms->step_gain_down ();
2966                 }
2967         }
2968 }
2969
2970 void
2971 Mixer_UI::unity_gain_action ()
2972 {
2973         set_axis_targets_for_operation ();
2974
2975         BOOST_FOREACH(AxisView* r, _axis_targets) {
2976                 boost::shared_ptr<Stripable> s = r->stripable();
2977                 if (s) {
2978                         boost::shared_ptr<AutomationControl> ac = s->gain_control();
2979                         if (ac) {
2980                                 ac->set_value (1.0, Controllable::UseGroup);
2981                         }
2982                 }
2983         }
2984 }
2985
2986 void
2987 Mixer_UI::copy_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->copy_processors ();
2995                 }
2996         }
2997 }
2998 void
2999 Mixer_UI::cut_processors ()
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->cut_processors ();
3007                 }
3008         }
3009 }
3010 void
3011 Mixer_UI::paste_processors ()
3012 {
3013         set_axis_targets_for_operation ();
3014
3015         BOOST_FOREACH(AxisView* r, _axis_targets) {
3016                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3017                 if (ms) {
3018                         ms->paste_processors ();
3019                 }
3020         }
3021 }
3022 void
3023 Mixer_UI::select_all_processors ()
3024 {
3025         set_axis_targets_for_operation ();
3026
3027         BOOST_FOREACH(AxisView* r, _axis_targets) {
3028                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3029                 if (ms) {
3030                         ms->select_all_processors ();
3031                 }
3032         }
3033 }
3034 void
3035 Mixer_UI::toggle_processors ()
3036 {
3037         set_axis_targets_for_operation ();
3038
3039         BOOST_FOREACH(AxisView* r, _axis_targets) {
3040                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3041                 if (ms) {
3042                         ms->toggle_processors ();
3043                 }
3044         }
3045 }
3046 void
3047 Mixer_UI::ab_plugins ()
3048 {
3049         set_axis_targets_for_operation ();
3050
3051         BOOST_FOREACH(AxisView* r, _axis_targets) {
3052                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3053                 if (ms) {
3054                         ms->ab_plugins ();
3055                 }
3056         }
3057 }
3058
3059 void
3060 Mixer_UI::vca_assign (boost::shared_ptr<VCA> vca)
3061 {
3062         set_axis_targets_for_operation ();
3063 #if 0
3064         BOOST_FOREACH(AxisView* r, _axis_targets) {
3065                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3066                 if (ms) {
3067                         ms->vca_assign (vca);
3068                 }
3069         }
3070 #endif
3071 }
3072
3073 void
3074 Mixer_UI::vca_unassign (boost::shared_ptr<VCA> vca)
3075 {
3076         set_axis_targets_for_operation ();
3077 #if 0
3078         BOOST_FOREACH(AxisView* r, _axis_targets) {
3079                 MixerStrip* ms = dynamic_cast<MixerStrip*> (r);
3080                 if (ms) {
3081                         ms->vca_unassign (vca);
3082                 }
3083         }
3084 #endif
3085 }