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 <gtkmm/accelmap.h>
  29
  30 #include "pbd/convert.h"
  31 #include "pbd/unwind.h"
  32
  33 #include <glibmm/threads.h>
  34
  35 #include <gtkmm2ext/gtk_ui.h>
  36 #include <gtkmm2ext/utils.h>
  37 #include <gtkmm2ext/tearoff.h>
  38 #include <gtkmm2ext/window_title.h>
  39
  40 #include "ardour/debug.h"
  41 #include "ardour/plugin_manager.h"
  42 #include "ardour/route_group.h"
  43 #include "ardour/session.h"
  44
  45 #include "keyboard.h"
  46 #include "mixer_ui.h"
  47 #include "mixer_strip.h"
  48 #include "monitor_section.h"
  49 #include "plugin_selector.h"
  50 #include "public_editor.h"
  51 #include "ardour_ui.h"
  52 #include "prompter.h"
  53 #include "utils.h"
  54 #include "route_sorter.h"
  55 #include "actions.h"
  56 #include "gui_thread.h"
  57 #include "mixer_group_tabs.h"
  58
  59 #include "i18n.h"
  60
  61 using namespace ARDOUR;
  62 using namespace PBD;
  63 using namespace Gtk;
  64 using namespace Glib;
  65 using namespace Gtkmm2ext;
  66 using namespace std;
  67
  68 using PBD::atoi;
  69 using PBD::Unwinder;
  70
  71 Mixer_UI* Mixer_UI::_instance = 0;
  72
  73 Mixer_UI*
  74 Mixer_UI::instance ()
  75 {
  76         if (!_instance) {
  77                 _instance  = new Mixer_UI;
  78         }
  79
  80         return _instance;
  81 }
  82
  83 Mixer_UI::Mixer_UI ()
  84         : Window (Gtk::WINDOW_TOPLEVEL)
  85         , _visible (false)
  86         , no_track_list_redisplay (false)
  87         , in_group_row_change (false)
  88         , track_menu (0)
  89         , _monitor_section (0)
  90         , _strip_width (Config->get_default_narrow_ms() ? Narrow : Wide)
  91         , ignore_reorder (false)
  92         , _following_editor_selection (false)
  93 {
  94         /* allow this window to become the key focus window */
  95         set_flags (CAN_FOCUS);
  96
  97         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_order_keys, this, _1), gui_context());
  98
  99         scroller_base.set_flags (Gtk::CAN_FOCUS);
 100         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 101         scroller_base.set_name ("MixerWindow");
 102         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 103         // add as last item of strip packer
 104         strip_packer.pack_end (scroller_base, true, true);
 105
 106         _group_tabs = new MixerGroupTabs (this);
 107         VBox* b = manage (new VBox);
 108         b->pack_start (*_group_tabs, PACK_SHRINK);
 109         b->pack_start (strip_packer);
 110         b->show_all ();
 111
 112         scroller.add (*b);
 113         scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 114
 115         setup_track_display ();
 116
 117         group_model = ListStore::create (group_columns);
 118         group_display.set_model (group_model);
 119         group_display.append_column (_("Group"), group_columns.text);
 120         group_display.append_column (_("Show"), group_columns.visible);
 121         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 122         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 123         group_display.get_column (0)->set_expand(true);
 124         group_display.get_column (1)->set_expand(false);
 125         group_display.set_name ("LHSList");
 126         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 127         group_display.set_reorderable (true);
 128         group_display.set_headers_visible (true);
 129         group_display.set_rules_hint (true);
 130
 131         /* name is directly editable */
 132
 133         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 134         name_cell->property_editable() = true;
 135         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 136
 137         /* use checkbox for the active column */
 138
 139         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 140         active_cell->property_activatable() = true;
 141         active_cell->property_radio() = false;
 142
 143         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 144         /* We use this to notice drag-and-drop reorders of the group list */
 145         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 146         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 147
 148         group_display_scroller.add (group_display);
 149         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 150
 151         HBox* route_group_display_button_box = manage (new HBox());
 152
 153         Button* route_group_add_button = manage (new Button ());
 154         Button* route_group_remove_button = manage (new Button ());
 155
 156         Widget* w;
 157
 158         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 159         w->show();
 160         route_group_add_button->add (*w);
 161
 162         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 163         w->show();
 164         route_group_remove_button->add (*w);
 165
 166         route_group_display_button_box->set_homogeneous (true);
 167
 168         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 169         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 170
 171         route_group_display_button_box->add (*route_group_add_button);
 172         route_group_display_button_box->add (*route_group_remove_button);
 173
 174         group_display_vbox.pack_start (group_display_scroller, true, true);
 175         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 176
 177         group_display_frame.set_name ("BaseFrame");
 178         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 179         group_display_frame.add (group_display_vbox);
 180
 181         rhs_pane1.pack1 (track_display_frame);
 182         rhs_pane1.pack2 (group_display_frame);
 183
 184         list_vpacker.pack_start (rhs_pane1, true, true);
 185
 186         global_hpacker.pack_start (scroller, true, true);
 187 #ifdef GTKOSX
 188         /* current gtk-quartz has dirty updates on borders like this one */
 189         global_hpacker.pack_start (out_packer, false, false, 0);
 190 #else
 191         global_hpacker.pack_start (out_packer, false, false, 12);
 192 #endif
 193         list_hpane.pack1(list_vpacker, true, true);
 194         list_hpane.pack2(global_hpacker, true, false);
 195
 196         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 197                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 198         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 199                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 200
 201         global_vpacker.pack_start (list_hpane, true, true);
 202
 203         add (global_vpacker);
 204         set_name ("MixerWindow");
 205
 206         update_title ();
 207
 208         set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
 209
 210         signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
 211         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 212
 213         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 214
 215         route_group_display_button_box->show();
 216         route_group_add_button->show();
 217         route_group_remove_button->show();
 218
 219         global_hpacker.show();
 220         global_vpacker.show();
 221         scroller.show();
 222         scroller_base.show();
 223         scroller_hpacker.show();
 224         mixer_scroller_vpacker.show();
 225         list_vpacker.show();
 226         group_display_button_label.show();
 227         group_display_button.show();
 228         group_display_scroller.show();
 229         group_display_vbox.show();
 230         group_display_frame.show();
 231         rhs_pane1.show();
 232         strip_packer.show();
 233         out_packer.show();
 234         list_hpane.show();
 235         group_display.show();
 236
 237         _in_group_rebuild_or_clear = false;
 238
 239         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 240
 241         MonitorSection::setup_knob_images ();
 242
 243 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 244         _plugin_selector = new PluginSelector (PluginManager::instance ());
 245 #endif
 246 }
 247
 248 Mixer_UI::~Mixer_UI ()
 249 {
 250         if (_monitor_section) {
 251                 delete _monitor_section;
 252         }
 253 }
 254
 255 void
 256 Mixer_UI::track_editor_selection ()
 257 {
 258         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 259 }
 260
 261
 262 void
 263 Mixer_UI::ensure_float (Window& win)
 264 {
 265         win.set_transient_for (*this);
 266 }
 267
 268 void
 269 Mixer_UI::show_window ()
 270 {
 271         present ();
 272         if (!_visible) {
 273                 set_window_pos_and_size ();
 274
 275                 /* show/hide group tabs as required */
 276                 parameter_changed ("show-group-tabs");
 277
 278                 /* now reset each strips width so the right widgets are shown */
 279                 MixerStrip* ms;
 280
 281                 TreeModel::Children rows = track_model->children();
 282                 TreeModel::Children::iterator ri;
 283
 284                 for (ri = rows.begin(); ri != rows.end(); ++ri) {
 285                         ms = (*ri)[track_columns.strip];
 286                         ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 287                         /* Fix visibility of mixer strip stuff */
 288                         ms->parameter_changed (X_("mixer-strip-visibility"));
 289                 }
 290         }
 291
 292         /* force focus into main area */
 293         scroller_base.grab_focus ();
 294
 295         _visible = true;
 296 }
 297
 298 bool
 299 Mixer_UI::hide_window (GdkEventAny *ev)
 300 {
 301         get_window_pos_and_size ();
 302
 303         _visible = false;
 304         return just_hide_it(ev, static_cast<Gtk::Window *>(this));
 305 }
 306
 307
 308 void
 309 Mixer_UI::add_strips (RouteList& routes)
 310 {
 311         MixerStrip* strip;
 312
 313         {
 314                 Unwinder<bool> uw (no_track_list_redisplay, true);
 315
 316                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 317                         boost::shared_ptr<Route> route = (*x);
 318
 319                         if (route->is_hidden()) {
 320                                 continue;
 321                         }
 322
 323                         if (route->is_monitor()) {
 324
 325                                 if (!_monitor_section) {
 326                                         _monitor_section = new MonitorSection (_session);
 327
 328                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 329                                         if (mnode) {
 330                                                 _monitor_section->tearoff().set_state (*mnode);
 331                                         }
 332                                 }
 333
 334                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 335                                 _monitor_section->set_session (_session);
 336                                 _monitor_section->tearoff().show_all ();
 337
 338                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 339
 340                                 /* no regular strip shown for control out */
 341
 342                                 continue;
 343                         }
 344
 345                         strip = new MixerStrip (*this, _session, route);
 346                         strips.push_back (strip);
 347
 348                         Config->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 349
 350                         if (strip->width_owner() != strip) {
 351                                 strip->set_width_enum (_strip_width, this);
 352                         }
 353
 354                         show_strip (strip);
 355
 356                         TreeModel::Row row = *(track_model->append());
 357                         row[track_columns.text] = route->name();
 358                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 359                         row[track_columns.route] = route;
 360                         row[track_columns.strip] = strip;
 361
 362                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 363
 364                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 365                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 366                 }
 367         }
 368
 369         sync_order_keys_from_treeview ();
 370         redisplay_track_list ();
 371 }
 372
 373 void
 374 Mixer_UI::remove_strip (MixerStrip* strip)
 375 {
 376         if (_session && _session->deletion_in_progress()) {
 377                 /* its all being taken care of */
 378                 return;
 379         }
 380
 381         TreeModel::Children rows = track_model->children();
 382         TreeModel::Children::iterator ri;
 383         list<MixerStrip *>::iterator i;
 384
 385         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 386                 strips.erase (i);
 387         }
 388
 389         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 390                 if ((*ri)[track_columns.strip] == strip) {
 391                         track_model->erase (ri);
 392                         break;
 393                 }
 394         }
 395 }
 396
 397 void
 398 Mixer_UI::reset_remote_control_ids ()
 399 {
 400         if (Config->get_remote_model() != MixerOrdered || !_session || _session->deletion_in_progress()) {
 401                 return;
 402         }
 403
 404         TreeModel::Children rows = track_model->children();
 405
 406         if (rows.empty()) {
 407                 return;
 408         }
 409
 410         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 411
 412         TreeModel::Children::iterator ri;
 413         bool rid_change = false;
 414         uint32_t rid = 1;
 415         uint32_t invisible_key = UINT32_MAX;
 416
 417         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 418                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 419                 bool visible = (*ri)[track_columns.visible];
 420
 421                 if (!route->is_master() && !route->is_monitor()) {
 422
 423                         uint32_t new_rid = (visible ? rid : invisible_key--);
 424
 425                         if (new_rid != route->remote_control_id()) {
 426                                 route->set_remote_control_id_from_order_key (MixerSort, new_rid);
 427                                 rid_change = true;
 428                         }
 429
 430                         if (visible) {
 431                                 rid++;
 432                         }
 433                 }
 434         }
 435
 436         if (rid_change) {
 437                 /* tell the world that we changed the remote control IDs */
 438                 _session->notify_remote_id_change ();
 439         }
 440 }
 441
 442 void
 443 Mixer_UI::sync_order_keys_from_treeview ()
 444 {
 445         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 446                 return;
 447         }
 448
 449         TreeModel::Children rows = track_model->children();
 450
 451         if (rows.empty()) {
 452                 return;
 453         }
 454
 455         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 456
 457         TreeModel::Children::iterator ri;
 458         bool changed = false;
 459         bool rid_change = false;
 460         uint32_t order = 0;
 461         uint32_t rid = 1;
 462         uint32_t invisible_key = UINT32_MAX;
 463
 464         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 465                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 466                 bool visible = (*ri)[track_columns.visible];
 467
 468                 uint32_t old_key = route->order_key (MixerSort);
 469
 470                 if (order != old_key) {
 471                         route->set_order_key (MixerSort, order);
 472                         changed = true;
 473                 }
 474
 475                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 476
 477                         uint32_t new_rid = (visible ? rid : invisible_key--);
 478
 479                         if (new_rid != route->remote_control_id()) {
 480                                 route->set_remote_control_id_from_order_key (MixerSort, new_rid);
 481                                 rid_change = true;
 482                         }
 483
 484                         if (visible) {
 485                                 rid++;
 486                         }
 487
 488                 }
 489
 490                 ++order;
 491         }
 492
 493         if (changed) {
 494                 /* tell everyone that we changed the mixer sort keys */
 495                 _session->sync_order_keys (MixerSort);
 496         }
 497
 498         if (rid_change) {
 499                 /* tell the world that we changed the remote control IDs */
 500                 _session->notify_remote_id_change ();
 501         }
 502 }
 503
 504 void
 505 Mixer_UI::sync_treeview_from_order_keys (RouteSortOrderKey src)
 506 {
 507         if (!_session || _session->deletion_in_progress()) {
 508                 return;
 509         }
 510
 511         DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("mixer sync model from order keys, src = %1\n", enum_2_string (src)));
 512
 513         if (src == EditorSort) {
 514
 515                 if (!Config->get_sync_all_route_ordering()) {
 516                         /* editor sort keys changed - we don't care */
 517                         return;
 518                 }
 519
 520                 DEBUG_TRACE (DEBUG::OrderKeys, "reset mixer order key to match editor\n");
 521
 522                 /* editor sort keys were changed, update the mixer sort
 523                  * keys since "sync mixer+editor order" is enabled.
 524                  */
 525
 526                 boost::shared_ptr<RouteList> r = _session->get_routes ();
 527
 528                 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
 529                         (*i)->sync_order_keys (src);
 530                 }
 531         }
 532
 533         /* we could get here after either a change in the Mixer or Editor sort
 534          * order, but either way, the mixer order keys reflect the intended
 535          * order for the GUI, so reorder the treeview model to match it.
 536          */
 537
 538         vector<int> neworder;
 539         TreeModel::Children rows = track_model->children();
 540         uint32_t old_order = 0;
 541         bool changed = false;
 542
 543         if (rows.empty()) {
 544                 return;
 545         }
 546
 547         OrderKeySortedRoutes sorted_routes;
 548
 549         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 550                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 551                 sorted_routes.push_back (RoutePlusOrderKey (route, old_order, route->order_key (MixerSort)));
 552         }
 553
 554         SortByNewDisplayOrder cmp;
 555
 556         sort (sorted_routes.begin(), sorted_routes.end(), cmp);
 557         neworder.assign (sorted_routes.size(), 0);
 558
 559         uint32_t n = 0;
 560
 561         for (OrderKeySortedRoutes::iterator sr = sorted_routes.begin(); sr != sorted_routes.end(); ++sr, ++n) {
 562
 563                 neworder[n] = sr->old_display_order;
 564
 565                 if (sr->old_display_order != n) {
 566                         changed = true;
 567                 }
 568
 569                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order for %1 from %2 to %3\n",
 570                                                                sr->route->name(), sr->old_display_order, n));
 571         }
 572
 573         if (changed) {
 574                 Unwinder<bool> uw (ignore_reorder, true);
 575                 track_model->reorder (neworder);
 576         }
 577
 578         redisplay_track_list ();
 579 }
 580
 581 void
 582 Mixer_UI::follow_editor_selection ()
 583 {
 584         if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
 585                 return;
 586         }
 587
 588         _following_editor_selection = true;
 589         _selection.block_routes_changed (true);
 590
 591         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 592
 593         _selection.clear_routes ();
 594
 595         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 596                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 597                 if (rtav) {
 598                         MixerStrip* ms = strip_by_route (rtav->route());
 599                         if (ms) {
 600                                 _selection.add (ms);
 601                         }
 602                 }
 603         }
 604
 605         _following_editor_selection = false;
 606         _selection.block_routes_changed (false);
 607 }
 608
 609
 610 MixerStrip*
 611 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 612 {
 613         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 614                 if ((*i)->route() == r) {
 615                         return (*i);
 616                 }
 617         }
 618
 619         return 0;
 620 }
 621
 622 bool
 623 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 624 {
 625         if (ev->button == 1) {
 626                 if (_selection.selected (strip)) {
 627                         /* primary-click: toggle selection state of strip */
 628                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 629                                 _selection.remove (strip);
 630                         }
 631                 } else {
 632                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 633                                 _selection.add (strip);
 634                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 635
 636                                 if (!_selection.selected(strip)) {
 637
 638                                         /* extend selection */
 639
 640                                         vector<MixerStrip*> tmp;
 641                                         bool accumulate = false;
 642
 643                                         tmp.push_back (strip);
 644
 645                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 646                                                 if ((*i) == strip) {
 647                                                         /* hit clicked strip, start accumulating till we hit the first
 648                                                            selected strip
 649                                                         */
 650                                                         if (accumulate) {
 651                                                                 /* done */
 652                                                                 break;
 653                                                         } else {
 654                                                                 accumulate = true;
 655                                                         }
 656                                                 } else if (_selection.selected (*i)) {
 657                                                         /* hit selected strip. if currently accumulating others,
 658                                                            we're done. if not accumulating others, start doing so.
 659                                                         */
 660                                                         if (accumulate) {
 661                                                                 /* done */
 662                                                                 break;
 663                                                         } else {
 664                                                                 accumulate = true;
 665                                                         }
 666                                                 } else {
 667                                                         if (accumulate) {
 668                                                                 tmp.push_back (*i);
 669                                                         }
 670                                                 }
 671                                         }
 672
 673                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 674                                                 _selection.add (*i);
 675                                         }
 676                                 }
 677
 678                         } else {
 679                                 _selection.set (strip);
 680                         }
 681                 }
 682         }
 683
 684         return true;
 685 }
 686
 687 void
 688 Mixer_UI::set_session (Session* sess)
 689 {
 690         SessionHandlePtr::set_session (sess);
 691
 692         if (_plugin_selector) {
 693                 _plugin_selector->set_session (_session);
 694         }
 695
 696         _group_tabs->set_session (sess);
 697
 698         if (!_session) {
 699                 return;
 700         }
 701
 702         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 703         set_state (*node);
 704
 705         update_title ();
 706
 707         initial_track_display ();
 708
 709         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 710         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 711         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 712         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 713         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 714         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 715         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 716
 717         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 718
 719         route_groups_changed ();
 720
 721         if (_visible) {
 722                 show_window();
 723
 724                 /* Bit of a hack; if we're here, we're opening the mixer because of our
 725                    instant XML state having a show-mixer property.  Fix up the corresponding
 726                    action state.
 727                 */
 728                 ActionManager::check_toggleaction ("<Actions>/Common/toggle-mixer");
 729         }
 730
 731         start_updating ();
 732 }
 733
 734 void
 735 Mixer_UI::session_going_away ()
 736 {
 737         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 738
 739         _in_group_rebuild_or_clear = true;
 740         group_model->clear ();
 741         _in_group_rebuild_or_clear = false;
 742
 743         _selection.clear ();
 744         track_model->clear ();
 745
 746         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 747                 delete (*i);
 748         }
 749
 750         if (_monitor_section) {
 751                 _monitor_section->tearoff().hide_visible ();
 752         }
 753
 754         strips.clear ();
 755
 756         stop_updating ();
 757
 758         SessionHandlePtr::session_going_away ();
 759
 760         _session = 0;
 761         update_title ();
 762 }
 763
 764 void
 765 Mixer_UI::track_visibility_changed (std::string const & path)
 766 {
 767         if (_session && _session->deletion_in_progress()) {
 768                 return;
 769         }
 770
 771         TreeIter iter;
 772
 773         if ((iter = track_model->get_iter (path))) {
 774                 MixerStrip* strip = (*iter)[track_columns.strip];
 775                 if (strip) {
 776                         bool visible = (*iter)[track_columns.visible];
 777
 778                         if (strip->set_marked_for_display (!visible)) {
 779                                 update_track_visibility ();
 780                         }
 781                 }
 782         }
 783 }
 784
 785 void
 786 Mixer_UI::update_track_visibility ()
 787 {
 788         TreeModel::Children rows = track_model->children();
 789         TreeModel::Children::iterator i;
 790
 791         {
 792                 Unwinder<bool> uw (no_track_list_redisplay, true);
 793
 794                 for (i = rows.begin(); i != rows.end(); ++i) {
 795                         MixerStrip *strip = (*i)[track_columns.strip];
 796                         (*i)[track_columns.visible] = strip->marked_for_display ();
 797                 }
 798
 799                 /* force route order keys catch up with visibility changes
 800                  */
 801
 802                 sync_order_keys_from_treeview ();
 803         }
 804
 805         redisplay_track_list ();
 806 }
 807
 808 void
 809 Mixer_UI::show_strip (MixerStrip* ms)
 810 {
 811         TreeModel::Children rows = track_model->children();
 812         TreeModel::Children::iterator i;
 813
 814         for (i = rows.begin(); i != rows.end(); ++i) {
 815
 816                 MixerStrip* strip = (*i)[track_columns.strip];
 817                 if (strip == ms) {
 818                         (*i)[track_columns.visible] = true;
 819                         redisplay_track_list ();
 820                         break;
 821                 }
 822         }
 823 }
 824
 825 void
 826 Mixer_UI::hide_strip (MixerStrip* ms)
 827 {
 828         TreeModel::Children rows = track_model->children();
 829         TreeModel::Children::iterator i;
 830
 831         for (i = rows.begin(); i != rows.end(); ++i) {
 832
 833                 MixerStrip* strip = (*i)[track_columns.strip];
 834                 if (strip == ms) {
 835                         (*i)[track_columns.visible] = false;
 836                         redisplay_track_list ();
 837                         break;
 838                 }
 839         }
 840 }
 841
 842 gint
 843 Mixer_UI::start_updating ()
 844 {
 845     fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 846     return 0;
 847 }
 848
 849 gint
 850 Mixer_UI::stop_updating ()
 851 {
 852     fast_screen_update_connection.disconnect();
 853     return 0;
 854 }
 855
 856 void
 857 Mixer_UI::fast_update_strips ()
 858 {
 859         if (is_mapped () && _session) {
 860                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 861                         (*i)->fast_update ();
 862                 }
 863         }
 864 }
 865
 866 void
 867 Mixer_UI::set_all_strips_visibility (bool yn)
 868 {
 869         TreeModel::Children rows = track_model->children();
 870         TreeModel::Children::iterator i;
 871
 872         {
 873                 Unwinder<bool> uw (no_track_list_redisplay, true);
 874
 875                 for (i = rows.begin(); i != rows.end(); ++i) {
 876
 877                         TreeModel::Row row = (*i);
 878                         MixerStrip* strip = row[track_columns.strip];
 879
 880                         if (strip == 0) {
 881                                 continue;
 882                         }
 883
 884                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 885                                 continue;
 886                         }
 887
 888                         (*i)[track_columns.visible] = yn;
 889                 }
 890         }
 891
 892         redisplay_track_list ();
 893 }
 894
 895
 896 void
 897 Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
 898 {
 899         TreeModel::Children rows = track_model->children();
 900         TreeModel::Children::iterator i;
 901
 902         {
 903                 Unwinder<bool> uw (no_track_list_redisplay, true);
 904
 905                 for (i = rows.begin(); i != rows.end(); ++i) {
 906                         TreeModel::Row row = (*i);
 907                         MixerStrip* strip = row[track_columns.strip];
 908
 909                         if (strip == 0) {
 910                                 continue;
 911                         }
 912
 913                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 914                                 continue;
 915                         }
 916
 917                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
 918
 919                         switch (tracks) {
 920                         case 0:
 921                                 (*i)[track_columns.visible] = yn;
 922                                 break;
 923
 924                         case 1:
 925                                 if (at) { /* track */
 926                                         (*i)[track_columns.visible] = yn;
 927                                 }
 928                                 break;
 929
 930                         case 2:
 931                                 if (!at) { /* bus */
 932                                         (*i)[track_columns.visible] = yn;
 933                                 }
 934                                 break;
 935                         }
 936                 }
 937         }
 938
 939         redisplay_track_list ();
 940 }
 941
 942 void
 943 Mixer_UI::hide_all_routes ()
 944 {
 945         set_all_strips_visibility (false);
 946 }
 947
 948 void
 949 Mixer_UI::show_all_routes ()
 950 {
 951         set_all_strips_visibility (true);
 952 }
 953
 954 void
 955 Mixer_UI::show_all_audiobus ()
 956 {
 957         set_all_audio_visibility (2, true);
 958 }
 959 void
 960 Mixer_UI::hide_all_audiobus ()
 961 {
 962         set_all_audio_visibility (2, false);
 963 }
 964
 965 void
 966 Mixer_UI::show_all_audiotracks()
 967 {
 968         set_all_audio_visibility (1, true);
 969 }
 970 void
 971 Mixer_UI::hide_all_audiotracks ()
 972 {
 973         set_all_audio_visibility (1, false);
 974 }
 975
 976 void
 977 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
 978 {
 979         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
 980         sync_order_keys_from_treeview ();
 981 }
 982
 983 void
 984 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
 985 {
 986         /* this happens as the second step of a DnD within the treeview as well
 987            as when a row/route is actually deleted.
 988         */
 989         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
 990         sync_order_keys_from_treeview ();
 991 }
 992
 993 void
 994 Mixer_UI::redisplay_track_list ()
 995 {
 996         TreeModel::Children rows = track_model->children();
 997         TreeModel::Children::iterator i;
 998
 999         if (no_track_list_redisplay) {
1000                 return;
1001         }
1002
1003         for (i = rows.begin(); i != rows.end(); ++i) {
1004
1005                 MixerStrip* strip = (*i)[track_columns.strip];
1006
1007                 if (strip == 0) {
1008                         /* we're in the middle of changing a row, don't worry */
1009                         continue;
1010                 }
1011
1012                 bool const visible = (*i)[track_columns.visible];
1013
1014                 if (visible) {
1015                         strip->set_gui_property ("visible", true);
1016
1017                         if (strip->packed()) {
1018
1019                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1020                                         out_packer.reorder_child (*strip, -1);
1021
1022                                 } else {
1023                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1024                                 }
1025
1026                         } else {
1027
1028                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1029                                         out_packer.pack_start (*strip, false, false);
1030                                 } else {
1031                                         strip_packer.pack_start (*strip, false, false);
1032                                 }
1033                                 strip->set_packed (true);
1034                         }
1035
1036                 } else {
1037
1038                         strip->set_gui_property ("visible", false);
1039
1040                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1041                                 /* do nothing, these cannot be hidden */
1042                         } else {
1043                                 if (strip->packed()) {
1044                                         strip_packer.remove (*strip);
1045                                         strip->set_packed (false);
1046                                 }
1047                         }
1048                 }
1049         }
1050
1051         _group_tabs->set_dirty ();
1052 }
1053
1054 void
1055 Mixer_UI::strip_width_changed ()
1056 {
1057         _group_tabs->set_dirty ();
1058
1059 #ifdef GTKOSX
1060         TreeModel::Children rows = track_model->children();
1061         TreeModel::Children::iterator i;
1062         long order;
1063
1064         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1065                 MixerStrip* strip = (*i)[track_columns.strip];
1066
1067                 if (strip == 0) {
1068                         continue;
1069                 }
1070
1071                 bool visible = (*i)[track_columns.visible];
1072
1073                 if (visible) {
1074                         strip->queue_draw();
1075                 }
1076         }
1077 #endif
1078
1079 }
1080
1081 struct SignalOrderRouteSorter {
1082     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
1083             if (a->is_master() || a->is_monitor()) {
1084                     /* "a" is a special route (master, monitor, etc), and comes
1085                      * last in the mixer ordering
1086                      */
1087                     return false;
1088             } else if (b->is_master() || b->is_monitor()) {
1089                     /* everything comes before b */
1090                     return true;
1091             }
1092             return a->order_key (MixerSort) < b->order_key (MixerSort);
1093
1094     }
1095 };
1096
1097 void
1098 Mixer_UI::initial_track_display ()
1099 {
1100         boost::shared_ptr<RouteList> routes = _session->get_routes();
1101         RouteList copy (*routes);
1102         SignalOrderRouteSorter sorter;
1103
1104         copy.sort (sorter);
1105
1106         {
1107                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1108                 Unwinder<bool> uw2 (ignore_reorder, true);
1109
1110                 track_model->clear ();
1111                 add_strips (copy);
1112         }
1113
1114         _session->sync_order_keys (MixerSort);
1115
1116         redisplay_track_list ();
1117 }
1118
1119 void
1120 Mixer_UI::show_track_list_menu ()
1121 {
1122         if (track_menu == 0) {
1123                 build_track_menu ();
1124         }
1125
1126         track_menu->popup (1, gtk_get_current_event_time());
1127 }
1128
1129 bool
1130 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1131 {
1132         if (Keyboard::is_context_menu_event (ev)) {
1133                 show_track_list_menu ();
1134                 return true;
1135         }
1136
1137         return false;
1138 }
1139
1140 void
1141 Mixer_UI::build_track_menu ()
1142 {
1143         using namespace Menu_Helpers;
1144         using namespace Gtk;
1145
1146         track_menu = new Menu;
1147         track_menu->set_name ("ArdourContextMenu");
1148         MenuList& items = track_menu->items();
1149
1150         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1151         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1152         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1153         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1154         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1155         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1156
1157 }
1158
1159 void
1160 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1161 {
1162         if (!what_changed.contains (ARDOUR::Properties::name)) {
1163                 return;
1164         }
1165
1166         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1167
1168         TreeModel::Children rows = track_model->children();
1169         TreeModel::Children::iterator i;
1170
1171         for (i = rows.begin(); i != rows.end(); ++i) {
1172                 if ((*i)[track_columns.strip] == mx) {
1173                         (*i)[track_columns.text] = mx->route()->name();
1174                         return;
1175                 }
1176         }
1177
1178         error << _("track display list item for renamed strip not found!") << endmsg;
1179 }
1180
1181 bool
1182 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1183 {
1184         TreeModel::Path path;
1185         TreeViewColumn* column;
1186         int cellx;
1187         int celly;
1188
1189         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1190                 return false;
1191         }
1192
1193         TreeIter iter = group_model->get_iter (path);
1194         if (!iter) {
1195                 return false;
1196         }
1197
1198         RouteGroup* group = (*iter)[group_columns.group];
1199
1200         if (Keyboard::is_context_menu_event (ev)) {
1201                 _group_tabs->get_menu(group)->popup (1, ev->time);
1202                 return true;
1203         }
1204
1205         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1206         case 0:
1207                 if (Keyboard::is_edit_event (ev)) {
1208                         if (group) {
1209                                 // edit_route_group (group);
1210 #ifdef GTKOSX
1211                                 group_display.queue_draw();
1212 #endif
1213                                 return true;
1214                         }
1215                 }
1216                 break;
1217
1218         case 1:
1219         {
1220                 bool visible = (*iter)[group_columns.visible];
1221                 (*iter)[group_columns.visible] = !visible;
1222 #ifdef GTKOSX
1223                 group_display.queue_draw();
1224 #endif
1225                 return true;
1226         }
1227
1228         default:
1229                 break;
1230         }
1231
1232         return false;
1233  }
1234
1235 void
1236 Mixer_UI::activate_all_route_groups ()
1237 {
1238         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1239 }
1240
1241 void
1242 Mixer_UI::disable_all_route_groups ()
1243 {
1244         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1245 }
1246
1247 void
1248 Mixer_UI::route_groups_changed ()
1249 {
1250         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1251
1252         _in_group_rebuild_or_clear = true;
1253
1254         /* just rebuild the while thing */
1255
1256         group_model->clear ();
1257
1258         {
1259                 TreeModel::Row row;
1260                 row = *(group_model->append());
1261                 row[group_columns.visible] = true;
1262                 row[group_columns.text] = (_("-all-"));
1263                 row[group_columns.group] = 0;
1264         }
1265
1266         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1267
1268         _group_tabs->set_dirty ();
1269         _in_group_rebuild_or_clear = false;
1270 }
1271
1272 void
1273 Mixer_UI::new_route_group ()
1274 {
1275         RouteList rl;
1276
1277         _group_tabs->run_new_group_dialog (rl);
1278 }
1279
1280 void
1281 Mixer_UI::remove_selected_route_group ()
1282 {
1283         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1284         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1285
1286         if (rows.empty()) {
1287                 return;
1288         }
1289
1290         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1291         TreeIter iter;
1292
1293         /* selection mode is single, so rows.begin() is it */
1294
1295         if ((iter = group_model->get_iter (*i))) {
1296
1297                 RouteGroup* rg = (*iter)[group_columns.group];
1298
1299                 if (rg) {
1300                         _session->remove_route_group (*rg);
1301                 }
1302         }
1303 }
1304
1305 void
1306 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1307 {
1308         if (in_group_row_change) {
1309                 return;
1310         }
1311
1312         /* force an update of any mixer strips that are using this group,
1313            otherwise mix group names don't change in mixer strips
1314         */
1315
1316         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1317                 if ((*i)->route_group() == group) {
1318                         (*i)->route_group_changed();
1319                 }
1320         }
1321
1322         TreeModel::iterator i;
1323         TreeModel::Children rows = group_model->children();
1324         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1325
1326         in_group_row_change = true;
1327
1328         for (i = rows.begin(); i != rows.end(); ++i) {
1329                 if ((*i)[group_columns.group] == group) {
1330                         (*i)[group_columns.visible] = !group->is_hidden ();
1331                         (*i)[group_columns.text] = group->name ();
1332                         break;
1333                 }
1334         }
1335
1336         in_group_row_change = false;
1337
1338         if (change.contains (Properties::name)) {
1339                 _group_tabs->set_dirty ();
1340         }
1341
1342         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1343                 if ((*j)->route_group() == group) {
1344                         if (group->is_hidden ()) {
1345                                 hide_strip (*j);
1346                         } else {
1347                                 show_strip (*j);
1348                         }
1349                 }
1350         }
1351 }
1352
1353 void
1354 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1355 {
1356         RouteGroup* group;
1357         TreeIter iter;
1358
1359         if ((iter = group_model->get_iter (path))) {
1360
1361                 if ((group = (*iter)[group_columns.group]) == 0) {
1362                         return;
1363                 }
1364
1365                 if (new_text != group->name()) {
1366                         group->set_name (new_text);
1367                 }
1368         }
1369 }
1370
1371 void
1372 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1373 {
1374         RouteGroup* group;
1375
1376         if (in_group_row_change) {
1377                 return;
1378         }
1379
1380         if ((group = (*iter)[group_columns.group]) == 0) {
1381                 return;
1382         }
1383
1384         std::string name = (*iter)[group_columns.text];
1385
1386         if (name != group->name()) {
1387                 group->set_name (name);
1388         }
1389
1390         bool hidden = !(*iter)[group_columns.visible];
1391
1392         if (hidden != group->is_hidden ()) {
1393                 group->set_hidden (hidden, this);
1394         }
1395 }
1396
1397 /** Called when a group model row is deleted, but also when the model is
1398  *  reordered by a user drag-and-drop; the latter is what we are
1399  *  interested in here.
1400  */
1401 void
1402 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1403 {
1404         if (_in_group_rebuild_or_clear) {
1405                 return;
1406         }
1407
1408         /* Re-write the session's route group list so that the new order is preserved */
1409
1410         list<RouteGroup*> new_list;
1411
1412         Gtk::TreeModel::Children children = group_model->children();
1413         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1414                 RouteGroup* g = (*i)[group_columns.group];
1415                 if (g) {
1416                         new_list.push_back (g);
1417                 }
1418         }
1419
1420         _session->reorder_route_groups (new_list);
1421 }
1422
1423
1424 void
1425 Mixer_UI::add_route_group (RouteGroup* group)
1426 {
1427         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1428         bool focus = false;
1429
1430         in_group_row_change = true;
1431
1432         TreeModel::Row row = *(group_model->append());
1433         row[group_columns.visible] = !group->is_hidden ();
1434         row[group_columns.group] = group;
1435         if (!group->name().empty()) {
1436                 row[group_columns.text] = group->name();
1437         } else {
1438                 row[group_columns.text] = _("unnamed");
1439                 focus = true;
1440         }
1441
1442         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1443
1444         if (focus) {
1445                 TreeViewColumn* col = group_display.get_column (0);
1446                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1447                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1448         }
1449
1450         _group_tabs->set_dirty ();
1451
1452         in_group_row_change = false;
1453 }
1454
1455 bool
1456 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1457 {
1458         using namespace Menu_Helpers;
1459
1460         if (Keyboard::is_context_menu_event (ev)) {
1461                 ARDOUR_UI::instance()->add_route (this);
1462                 return true;
1463         }
1464
1465         return false;
1466 }
1467
1468 void
1469 Mixer_UI::set_strip_width (Width w)
1470 {
1471         _strip_width = w;
1472
1473         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1474                 (*i)->set_width_enum (w, this);
1475         }
1476 }
1477
1478 void
1479 Mixer_UI::set_window_pos_and_size ()
1480 {
1481         resize (m_width, m_height);
1482         move (m_root_x, m_root_y);
1483 }
1484
1485         void
1486 Mixer_UI::get_window_pos_and_size ()
1487 {
1488         get_position(m_root_x, m_root_y);
1489         get_size(m_width, m_height);
1490 }
1491
1492 int
1493 Mixer_UI::set_state (const XMLNode& node)
1494 {
1495         const XMLProperty* prop;
1496         XMLNode* geometry;
1497
1498         m_width = default_width;
1499         m_height = default_height;
1500         m_root_x = 1;
1501         m_root_y = 1;
1502
1503         if ((geometry = find_named_node (node, "geometry")) != 0) {
1504
1505                 XMLProperty* prop;
1506
1507                 if ((prop = geometry->property("x_size")) == 0) {
1508                         prop = geometry->property ("x-size");
1509                 }
1510                 if (prop) {
1511                         m_width = atoi(prop->value());
1512                 }
1513                 if ((prop = geometry->property("y_size")) == 0) {
1514                         prop = geometry->property ("y-size");
1515                 }
1516                 if (prop) {
1517                         m_height = atoi(prop->value());
1518                 }
1519
1520                 if ((prop = geometry->property ("x_pos")) == 0) {
1521                         prop = geometry->property ("x-pos");
1522                 }
1523                 if (prop) {
1524                         m_root_x = atoi (prop->value());
1525
1526                 }
1527                 if ((prop = geometry->property ("y_pos")) == 0) {
1528                         prop = geometry->property ("y-pos");
1529                 }
1530                 if (prop) {
1531                         m_root_y = atoi (prop->value());
1532                 }
1533         }
1534
1535         set_window_pos_and_size ();
1536
1537         if ((prop = node.property ("narrow-strips"))) {
1538                 if (string_is_affirmative (prop->value())) {
1539                         set_strip_width (Narrow);
1540                 } else {
1541                         set_strip_width (Wide);
1542                 }
1543         }
1544
1545         if ((prop = node.property ("show-mixer"))) {
1546                 if (string_is_affirmative (prop->value())) {
1547                        _visible = true;
1548                 }
1549         }
1550
1551         return 0;
1552 }
1553
1554 XMLNode&
1555 Mixer_UI::get_state (void)
1556 {
1557         XMLNode* node = new XMLNode ("Mixer");
1558
1559         if (is_realized()) {
1560                 Glib::RefPtr<Gdk::Window> win = get_window();
1561
1562                 get_window_pos_and_size ();
1563
1564                 XMLNode* geometry = new XMLNode ("geometry");
1565                 char buf[32];
1566                 snprintf(buf, sizeof(buf), "%d", m_width);
1567                 geometry->add_property(X_("x_size"), string(buf));
1568                 snprintf(buf, sizeof(buf), "%d", m_height);
1569                 geometry->add_property(X_("y_size"), string(buf));
1570                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1571                 geometry->add_property(X_("x_pos"), string(buf));
1572                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1573                 geometry->add_property(X_("y_pos"), string(buf));
1574
1575                 // written only for compatibility, they are not used.
1576                 snprintf(buf, sizeof(buf), "%d", 0);
1577                 geometry->add_property(X_("x_off"), string(buf));
1578                 snprintf(buf, sizeof(buf), "%d", 0);
1579                 geometry->add_property(X_("y_off"), string(buf));
1580
1581                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1582                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1583                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1584                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1585
1586                 node->add_child_nocopy (*geometry);
1587         }
1588
1589         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1590
1591         node->add_property ("show-mixer", _visible ? "yes" : "no");
1592
1593         return *node;
1594 }
1595
1596
1597 void
1598 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1599 {
1600         int pos;
1601         XMLProperty* prop = 0;
1602         char buf[32];
1603         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1604         XMLNode* geometry;
1605         int height;
1606         static int32_t done[3] = { 0, 0, 0 };
1607
1608         height = default_height;
1609
1610         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1611
1612                 if ((prop = geometry->property ("y_size")) == 0) {
1613                         prop = geometry->property ("y-size");
1614                 }
1615                 if (prop) {
1616                         height = atoi (prop->value());
1617                 }
1618         }
1619
1620         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1621
1622                 if (done[0]) {
1623                         return;
1624                 }
1625
1626                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1627                         pos = height / 3;
1628                         snprintf (buf, sizeof(buf), "%d", pos);
1629                 } else {
1630                         pos = atoi (prop->value());
1631                 }
1632
1633                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1634                         rhs_pane1.set_position (pos);
1635                 }
1636
1637         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1638
1639                 if (done[2]) {
1640                         return;
1641                 }
1642
1643                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1644                         pos = 75;
1645                         snprintf (buf, sizeof(buf), "%d", pos);
1646                 } else {
1647                         pos = atoi (prop->value());
1648                 }
1649
1650                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1651                         list_hpane.set_position (pos);
1652                 }
1653         }
1654 }
1655 void
1656 Mixer_UI::scroll_left ()
1657 {
1658         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1659         /* stupid GTK: can't rely on clamping across versions */
1660         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1661 }
1662
1663 void
1664 Mixer_UI::scroll_right ()
1665 {
1666         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1667         /* stupid GTK: can't rely on clamping across versions */
1668         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1669 }
1670
1671 bool
1672 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1673 {
1674         /* focus widget gets first shot, then bindings, otherwise
1675            forward to main window
1676         */
1677
1678         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1679                 return true;
1680         }
1681
1682         KeyboardKey k (ev->state, ev->keyval);
1683
1684         if (bindings.activate (k, Bindings::Press)) {
1685                 return true;
1686         }
1687
1688         return forward_key_press (ev);
1689 }
1690
1691 bool
1692 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1693 {
1694         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1695                 return true;
1696         }
1697
1698         KeyboardKey k (ev->state, ev->keyval);
1699
1700         if (bindings.activate (k, Bindings::Release)) {
1701                 return true;
1702         }
1703
1704         /* don't forward releases */
1705
1706         return true;
1707 }
1708
1709 bool
1710 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1711 {
1712         switch (ev->direction) {
1713         case GDK_SCROLL_LEFT:
1714                 scroll_left ();
1715                 return true;
1716         case GDK_SCROLL_UP:
1717                 if (ev->state & Keyboard::TertiaryModifier) {
1718                         scroll_left ();
1719                         return true;
1720                 }
1721                 return false;
1722
1723         case GDK_SCROLL_RIGHT:
1724                 scroll_right ();
1725                 return true;
1726
1727         case GDK_SCROLL_DOWN:
1728                 if (ev->state & Keyboard::TertiaryModifier) {
1729                         scroll_right ();
1730                         return true;
1731                 }
1732                 return false;
1733         }
1734
1735         return false;
1736 }
1737
1738
1739 void
1740 Mixer_UI::parameter_changed (string const & p)
1741 {
1742         if (p == "show-group-tabs") {
1743                 bool const s = _session->config.get_show_group_tabs ();
1744                 if (s) {
1745                         _group_tabs->show ();
1746                 } else {
1747                         _group_tabs->hide ();
1748                 }
1749         } else if (p == "default-narrow_ms") {
1750                 bool const s = Config->get_default_narrow_ms ();
1751                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1752                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1753                 }
1754         } else if (p == "remote-model") {
1755                 reset_remote_control_ids ();
1756         }
1757 }
1758
1759 void
1760 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1761 {
1762         g->set_active (a, this);
1763 }
1764
1765 PluginSelector*
1766 Mixer_UI::plugin_selector()
1767 {
1768 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1769         if (!_plugin_selector)
1770                 _plugin_selector = new PluginSelector (PluginManager::instance());
1771 #endif
1772
1773         return _plugin_selector;
1774 }
1775
1776 void
1777 Mixer_UI::setup_track_display ()
1778 {
1779         track_model = ListStore::create (track_columns);
1780         track_display.set_model (track_model);
1781         track_display.append_column (_("Strips"), track_columns.text);
1782         track_display.append_column (_("Show"), track_columns.visible);
1783         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1784         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1785         track_display.get_column (0)->set_expand(true);
1786         track_display.get_column (1)->set_expand(false);
1787         track_display.set_name (X_("LHSList"));
1788         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1789         track_display.set_reorderable (true);
1790         track_display.set_headers_visible (true);
1791
1792         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1793         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1794
1795         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1796         track_list_visible_cell->property_activatable() = true;
1797         track_list_visible_cell->property_radio() = false;
1798         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
1799
1800         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1801
1802         track_display_scroller.add (track_display);
1803         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1804
1805         VBox* v = manage (new VBox);
1806         v->show ();
1807         v->pack_start (track_display_scroller, true, true);
1808
1809         Button* b = manage (new Button);
1810         b->show ();
1811         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1812         w->show ();
1813         b->add (*w);
1814
1815         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1816
1817         v->pack_start (*b, false, false);
1818
1819         track_display_frame.set_name("BaseFrame");
1820         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1821         track_display_frame.add (*v);
1822
1823         track_display_scroller.show();
1824         track_display_frame.show();
1825         track_display.show();
1826 }
1827
1828 void
1829 Mixer_UI::new_track_or_bus ()
1830 {
1831         ARDOUR_UI::instance()->add_route (this);
1832 }
1833
1834
1835 void
1836 Mixer_UI::update_title ()
1837 {
1838         if (_session) {
1839                 string n;
1840
1841                 if (_session->snap_name() != _session->name()) {
1842                         n = _session->snap_name ();
1843                 } else {
1844                         n = _session->name ();
1845                 }
1846
1847                 if (_session->dirty ()) {
1848                         n = "*" + n;
1849                 }
1850
1851                 WindowTitle title (n);
1852                 title += S_("Window|Mixer");
1853                 title += Glib::get_application_name ();
1854                 set_title (title.get_string());
1855
1856         } else {
1857
1858                 WindowTitle title (S_("Window|Mixer"));
1859                 title += Glib::get_application_name ();
1860                 set_title (title.get_string());
1861         }
1862 }
1863
1864 MixerStrip*
1865 Mixer_UI::strip_by_x (int x)
1866 {
1867         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1868                 int x1, x2, y;
1869
1870                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1871                 x2 = x1 + (*i)->get_width();
1872
1873                 if (x >= x1 && x <= x2) {
1874                         return (*i);
1875                 }
1876         }
1877
1878         return 0;
1879 }
1880
1881 void
1882 Mixer_UI::set_route_targets_for_operation ()
1883 {
1884         _route_targets.clear ();
1885
1886         if (!_selection.empty()) {
1887                 _route_targets = _selection.routes;
1888                 return;
1889         }
1890
1891         /* try to get mixer strip at mouse */
1892
1893         int x, y;
1894         get_pointer (x, y);
1895
1896         MixerStrip* ms = strip_by_x (x);
1897
1898         if (ms) {
1899                 _route_targets.insert (ms);
1900         }
1901 }
1902
1903 void
1904 Mixer_UI::monitor_section_going_away ()
1905 {
1906         if (_monitor_section) {
1907                 out_packer.remove (_monitor_section->tearoff());
1908                 _monitor_section->set_session (0);
1909         }
1910 }