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/stacktrace.h"
  32 #include <glibmm/thread.h>
  33
  34 #include <gtkmm2ext/gtk_ui.h>
  35 #include <gtkmm2ext/utils.h>
  36 #include <gtkmm2ext/tearoff.h>
  37 #include <gtkmm2ext/window_title.h>
  38
  39 #include "ardour/plugin_manager.h"
  40 #include "ardour/route_group.h"
  41 #include "ardour/session.h"
  42
  43 #include "keyboard.h"
  44 #include "mixer_ui.h"
  45 #include "mixer_strip.h"
  46 #include "monitor_section.h"
  47 #include "plugin_selector.h"
  48 #include "public_editor.h"
  49 #include "ardour_ui.h"
  50 #include "prompter.h"
  51 #include "utils.h"
  52 #include "actions.h"
  53 #include "gui_thread.h"
  54 #include "mixer_group_tabs.h"
  55
  56 #include "i18n.h"
  57
  58 using namespace ARDOUR;
  59 using namespace PBD;
  60 using namespace Gtk;
  61 using namespace Glib;
  62 using namespace Gtkmm2ext;
  63 using namespace std;
  64
  65 using PBD::atoi;
  66
  67 Mixer_UI* Mixer_UI::_instance = 0;
  68
  69 Mixer_UI*
  70 Mixer_UI::instance ()
  71 {
  72         if (!_instance) {
  73                 _instance  = new Mixer_UI;
  74         }
  75
  76         return _instance;
  77 }
  78
  79 Mixer_UI::Mixer_UI ()
  80         : Window (Gtk::WINDOW_TOPLEVEL)
  81         , _following_editor_selection (false)
  82 {
  83         /* allow this window to become the key focus window */
  84         set_flags (CAN_FOCUS);
  85
  86         _strip_width = Config->get_default_narrow_ms() ? Narrow : Wide;
  87         track_menu = 0;
  88         _monitor_section = 0;
  89         no_track_list_redisplay = false;
  90         in_group_row_change = false;
  91         _visible = false;
  92         strip_redisplay_does_not_reset_order_keys = false;
  93         strip_redisplay_does_not_sync_order_keys = false;
  94         ignore_sync = false;
  95
  96         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_order_keys, this, _1), gui_context());
  97
  98         scroller_base.set_flags (Gtk::CAN_FOCUS);
  99         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 100         scroller_base.set_name ("MixerWindow");
 101         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 102         // add as last item of strip packer
 103         strip_packer.pack_end (scroller_base, true, true);
 104
 105         _group_tabs = new MixerGroupTabs (this);
 106         VBox* b = manage (new VBox);
 107         b->pack_start (*_group_tabs, PACK_SHRINK);
 108         b->pack_start (strip_packer);
 109         b->show_all ();
 110
 111         scroller.add (*b);
 112         scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 113
 114         setup_track_display ();
 115
 116         group_model = ListStore::create (group_columns);
 117         group_display.set_model (group_model);
 118         group_display.append_column (_("Group"), group_columns.text);
 119         group_display.append_column (_("Show"), group_columns.visible);
 120         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 121         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 122         group_display.get_column (0)->set_expand(true);
 123         group_display.get_column (1)->set_expand(false);
 124         group_display.set_name ("MixerGroupList");
 125         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 126         group_display.set_reorderable (true);
 127         group_display.set_headers_visible (true);
 128         group_display.set_rules_hint (true);
 129
 130         /* name is directly editable */
 131
 132         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 133         name_cell->property_editable() = true;
 134         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 135
 136         /* use checkbox for the active column */
 137
 138         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 139         active_cell->property_activatable() = true;
 140         active_cell->property_radio() = false;
 141
 142         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 143         /* We use this to notice drag-and-drop reorders of the group list */
 144         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 145         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 146
 147         group_display_scroller.add (group_display);
 148         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 149
 150         HBox* route_group_display_button_box = manage (new HBox());
 151
 152         Button* route_group_add_button = manage (new Button ());
 153         Button* route_group_remove_button = manage (new Button ());
 154
 155         Widget* w;
 156
 157         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 158         w->show();
 159         route_group_add_button->add (*w);
 160
 161         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 162         w->show();
 163         route_group_remove_button->add (*w);
 164
 165         route_group_display_button_box->set_homogeneous (true);
 166
 167         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 168         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 169
 170         route_group_display_button_box->add (*route_group_add_button);
 171         route_group_display_button_box->add (*route_group_remove_button);
 172
 173         group_display_vbox.pack_start (group_display_scroller, true, true);
 174         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 175
 176         group_display_frame.set_name ("BaseFrame");
 177         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 178         group_display_frame.add (group_display_vbox);
 179
 180         rhs_pane1.pack1 (track_display_frame);
 181         rhs_pane1.pack2 (group_display_frame);
 182
 183         list_vpacker.pack_start (rhs_pane1, true, true);
 184
 185         global_hpacker.pack_start (scroller, true, true);
 186 #ifdef GTKOSX
 187         /* current gtk-quartz has dirty updates on borders like this one */
 188         global_hpacker.pack_start (out_packer, false, false, 0);
 189 #else
 190         global_hpacker.pack_start (out_packer, false, false, 12);
 191 #endif
 192         list_hpane.pack1(list_vpacker, true, true);
 193         list_hpane.pack2(global_hpacker, true, false);
 194
 195         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 196                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 197         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 198                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 199
 200         global_vpacker.pack_start (list_hpane, true, true);
 201
 202         add (global_vpacker);
 203         set_name ("MixerWindow");
 204
 205         update_title ();
 206
 207         set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
 208
 209         signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
 210         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 211
 212         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 213
 214         route_group_display_button_box->show();
 215         route_group_add_button->show();
 216         route_group_remove_button->show();
 217
 218         global_hpacker.show();
 219         global_vpacker.show();
 220         scroller.show();
 221         scroller_base.show();
 222         scroller_hpacker.show();
 223         mixer_scroller_vpacker.show();
 224         list_vpacker.show();
 225         group_display_button_label.show();
 226         group_display_button.show();
 227         group_display_scroller.show();
 228         group_display_vbox.show();
 229         group_display_frame.show();
 230         rhs_pane1.show();
 231         strip_packer.show();
 232         out_packer.show();
 233         list_hpane.show();
 234         group_display.show();
 235
 236         _in_group_rebuild_or_clear = false;
 237
 238         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 239
 240         MonitorSection::setup_knob_images ();
 241
 242 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 243         _plugin_selector = new PluginSelector (PluginManager::instance ());
 244 #endif
 245 }
 246
 247 Mixer_UI::~Mixer_UI ()
 248 {
 249         if (_monitor_section) {
 250                 delete _monitor_section;
 251         }
 252 }
 253
 254 void
 255 Mixer_UI::track_editor_selection ()
 256 {
 257         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 258 }
 259
 260
 261 void
 262 Mixer_UI::ensure_float (Window& win)
 263 {
 264         win.set_transient_for (*this);
 265 }
 266
 267 void
 268 Mixer_UI::show_window ()
 269 {
 270         present ();
 271         if (!_visible) {
 272                 set_window_pos_and_size ();
 273
 274                 /* show/hide group tabs as required */
 275                 parameter_changed ("show-group-tabs");
 276
 277                 /* now reset each strips width so the right widgets are shown */
 278                 MixerStrip* ms;
 279
 280                 TreeModel::Children rows = track_model->children();
 281                 TreeModel::Children::iterator ri;
 282
 283                 for (ri = rows.begin(); ri != rows.end(); ++ri) {
 284                         ms = (*ri)[track_columns.strip];
 285                         ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 286                         /* Fix visibility of mixer strip stuff */
 287                         ms->parameter_changed (X_("mixer-strip-visibility"));
 288                 }
 289         }
 290
 291         /* force focus into main area */
 292         scroller_base.grab_focus ();
 293
 294         _visible = true;
 295 }
 296
 297 bool
 298 Mixer_UI::hide_window (GdkEventAny *ev)
 299 {
 300         get_window_pos_and_size ();
 301
 302         _visible = false;
 303         return just_hide_it(ev, static_cast<Gtk::Window *>(this));
 304 }
 305
 306
 307 void
 308 Mixer_UI::add_strip (RouteList& routes)
 309 {
 310         MixerStrip* strip;
 311
 312         no_track_list_redisplay = true;
 313         strip_redisplay_does_not_sync_order_keys = true;
 314
 315         for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 316                 boost::shared_ptr<Route> route = (*x);
 317
 318                 if (route->is_hidden()) {
 319                         continue;
 320                 }
 321
 322                 if (route->is_monitor()) {
 323
 324                         if (!_monitor_section) {
 325                                 _monitor_section = new MonitorSection (_session);
 326
 327                                 XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 328                                 if (mnode) {
 329                                         _monitor_section->tearoff().set_state (*mnode);
 330                                 }
 331                         }
 332
 333                         out_packer.pack_end (_monitor_section->tearoff(), false, false);
 334                         _monitor_section->set_session (_session);
 335                         _monitor_section->tearoff().show_all ();
 336
 337                         route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 338
 339                         /* no regular strip shown for control out */
 340
 341                         continue;
 342                 }
 343
 344                 strip = new MixerStrip (*this, _session, route);
 345                 strips.push_back (strip);
 346
 347                 Config->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 348
 349                 if (strip->width_owner() != strip) {
 350                         strip->set_width_enum (_strip_width, this);
 351                 }
 352
 353                 show_strip (strip);
 354
 355                 TreeModel::Row row = *(track_model->append());
 356                 row[track_columns.text] = route->name();
 357                 row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 358                 row[track_columns.route] = route;
 359                 row[track_columns.strip] = strip;
 360
 361                 route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 362
 363                 strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 364                 strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 365         }
 366
 367         no_track_list_redisplay = false;
 368
 369         redisplay_track_list ();
 370
 371         strip_redisplay_does_not_sync_order_keys = false;
 372 }
 373
 374 void
 375 Mixer_UI::remove_strip (MixerStrip* strip)
 376 {
 377         if (_session && _session->deletion_in_progress()) {
 378                 /* its all being taken care of */
 379                 return;
 380         }
 381
 382         TreeModel::Children rows = track_model->children();
 383         TreeModel::Children::iterator ri;
 384         list<MixerStrip *>::iterator i;
 385
 386         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 387                 strips.erase (i);
 388         }
 389
 390         strip_redisplay_does_not_sync_order_keys = true;
 391
 392         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 393                 if ((*ri)[track_columns.strip] == strip) {
 394                         track_model->erase (ri);
 395                         break;
 396                 }
 397         }
 398
 399         strip_redisplay_does_not_sync_order_keys = false;
 400 }
 401
 402 void
 403 Mixer_UI::sync_order_keys (RouteSortOrderKey src)
 404 {
 405         TreeModel::Children rows = track_model->children();
 406         TreeModel::Children::iterator ri;
 407
 408         if (src == MixerSort || !_session || (_session->state_of_the_state() & (Session::Loading|Session::Deletion)) || rows.empty()) {
 409                 return;
 410         }
 411
 412         std::map<int,int> keys;
 413
 414         bool changed = false;
 415
 416         unsigned order = 0;
 417         for (ri = rows.begin(); ri != rows.end(); ++ri, ++order) {
 418                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 419                 unsigned int old_key = order;
 420                 unsigned int new_key = route->order_key (MixerSort);
 421
 422                 keys[new_key] = old_key;
 423
 424                 if (new_key != old_key) {
 425                         changed = true;
 426                 }
 427         }
 428
 429         if (keys.size() != rows.size()) {
 430                 PBD::stacktrace (cerr, 20);
 431         }
 432         assert(keys.size() == rows.size());
 433
 434         // Remove any gaps in keys caused by automation children tracks
 435         vector<int> neworder;
 436         for (std::map<int,int>::const_iterator i = keys.begin(); i != keys.end(); ++i) {
 437                 neworder.push_back(i->second);
 438         }
 439         assert(neworder.size() == rows.size());
 440
 441         if (changed) {
 442                 strip_redisplay_does_not_reset_order_keys = true;
 443                 track_model->reorder (neworder);
 444                 strip_redisplay_does_not_reset_order_keys = false;
 445         }
 446 }
 447
 448 void
 449 Mixer_UI::follow_editor_selection ()
 450 {
 451         if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
 452                 return;
 453         }
 454
 455         _following_editor_selection = true;
 456         _selection.block_routes_changed (true);
 457
 458         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 459
 460         _selection.clear_routes ();
 461
 462         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 463                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 464                 if (rtav) {
 465                         MixerStrip* ms = strip_by_route (rtav->route());
 466                         if (ms) {
 467                                 _selection.add (ms);
 468                         }
 469                 }
 470         }
 471
 472         _following_editor_selection = false;
 473         _selection.block_routes_changed (false);
 474 }
 475
 476
 477 MixerStrip*
 478 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 479 {
 480         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 481                 if ((*i)->route() == r) {
 482                         return (*i);
 483                 }
 484         }
 485
 486         return 0;
 487 }
 488
 489 bool
 490 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 491 {
 492         if (ev->button == 1) {
 493                 if (_selection.selected (strip)) {
 494                         /* primary-click: toggle selection state of strip */
 495                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 496                                 _selection.remove (strip);
 497                         }
 498                 } else {
 499                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 500                                 _selection.add (strip);
 501                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 502
 503                                 if (!_selection.selected(strip)) {
 504
 505                                         /* extend selection */
 506
 507                                         vector<MixerStrip*> tmp;
 508                                         bool accumulate = false;
 509
 510                                         tmp.push_back (strip);
 511
 512                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 513                                                 if ((*i) == strip) {
 514                                                         /* hit clicked strip, start accumulating till we hit the first
 515                                                            selected strip
 516                                                         */
 517                                                         if (accumulate) {
 518                                                                 /* done */
 519                                                                 break;
 520                                                         } else {
 521                                                                 accumulate = true;
 522                                                         }
 523                                                 } else if (_selection.selected (*i)) {
 524                                                         /* hit selected strip. if currently accumulating others,
 525                                                            we're done. if not accumulating others, start doing so.
 526                                                         */
 527                                                         if (accumulate) {
 528                                                                 /* done */
 529                                                                 break;
 530                                                         } else {
 531                                                                 accumulate = true;
 532                                                         }
 533                                                 } else {
 534                                                         if (accumulate) {
 535                                                                 tmp.push_back (*i);
 536                                                         }
 537                                                 }
 538                                         }
 539
 540                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 541                                                 _selection.add (*i);
 542                                         }
 543                                 }
 544
 545                         } else {
 546                                 _selection.set (strip);
 547                         }
 548                 }
 549         }
 550
 551         return true;
 552 }
 553
 554 void
 555 Mixer_UI::set_session (Session* sess)
 556 {
 557         SessionHandlePtr::set_session (sess);
 558
 559         if (_plugin_selector) {
 560                 _plugin_selector->set_session (_session);
 561         }
 562
 563         _group_tabs->set_session (sess);
 564
 565         if (!_session) {
 566                 return;
 567         }
 568
 569         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 570         set_state (*node);
 571
 572         update_title ();
 573
 574         initial_track_display ();
 575
 576         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strip, this, _1), gui_context());
 577         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 578         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 579         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 580         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 581         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 582         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 583
 584         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 585
 586         route_groups_changed ();
 587
 588         if (_visible) {
 589                 show_window();
 590
 591                 /* Bit of a hack; if we're here, we're opening the mixer because of our
 592                    instant XML state having a show-mixer property.  Fix up the corresponding
 593                    action state.
 594                 */
 595                 ActionManager::check_toggleaction ("<Actions>/Common/toggle-mixer");
 596         }
 597
 598         start_updating ();
 599 }
 600
 601 void
 602 Mixer_UI::session_going_away ()
 603 {
 604         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 605
 606         _in_group_rebuild_or_clear = true;
 607         group_model->clear ();
 608         _in_group_rebuild_or_clear = false;
 609
 610         _selection.clear ();
 611         track_model->clear ();
 612
 613         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 614                 delete (*i);
 615         }
 616
 617         if (_monitor_section) {
 618                 _monitor_section->tearoff().hide_visible ();
 619         }
 620
 621         strips.clear ();
 622
 623         stop_updating ();
 624
 625         SessionHandlePtr::session_going_away ();
 626
 627         _session = 0;
 628         update_title ();
 629 }
 630
 631 void
 632 Mixer_UI::show_strip (MixerStrip* ms)
 633 {
 634         TreeModel::Children rows = track_model->children();
 635         TreeModel::Children::iterator i;
 636
 637         for (i = rows.begin(); i != rows.end(); ++i) {
 638
 639                 MixerStrip* strip = (*i)[track_columns.strip];
 640                 if (strip == ms) {
 641                         (*i)[track_columns.visible] = true;
 642                         break;
 643                 }
 644         }
 645 }
 646
 647 void
 648 Mixer_UI::hide_strip (MixerStrip* ms)
 649 {
 650         TreeModel::Children rows = track_model->children();
 651         TreeModel::Children::iterator i;
 652
 653         for (i = rows.begin(); i != rows.end(); ++i) {
 654
 655                 MixerStrip* strip = (*i)[track_columns.strip];
 656                 if (strip == ms) {
 657                         (*i)[track_columns.visible] = false;
 658                         break;
 659                 }
 660         }
 661 }
 662
 663 gint
 664 Mixer_UI::start_updating ()
 665 {
 666     fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 667     return 0;
 668 }
 669
 670 gint
 671 Mixer_UI::stop_updating ()
 672 {
 673     fast_screen_update_connection.disconnect();
 674     return 0;
 675 }
 676
 677 void
 678 Mixer_UI::fast_update_strips ()
 679 {
 680         if (is_mapped () && _session) {
 681                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 682                         (*i)->fast_update ();
 683                 }
 684         }
 685 }
 686
 687 void
 688 Mixer_UI::set_all_strips_visibility (bool yn)
 689 {
 690         TreeModel::Children rows = track_model->children();
 691         TreeModel::Children::iterator i;
 692
 693         no_track_list_redisplay = true;
 694
 695         for (i = rows.begin(); i != rows.end(); ++i) {
 696
 697                 TreeModel::Row row = (*i);
 698                 MixerStrip* strip = row[track_columns.strip];
 699
 700                 if (strip == 0) {
 701                         continue;
 702                 }
 703
 704                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
 705                         continue;
 706                 }
 707
 708                 (*i)[track_columns.visible] = yn;
 709         }
 710
 711         no_track_list_redisplay = false;
 712         redisplay_track_list ();
 713 }
 714
 715
 716 void
 717 Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
 718 {
 719         TreeModel::Children rows = track_model->children();
 720         TreeModel::Children::iterator i;
 721
 722         no_track_list_redisplay = true;
 723
 724         for (i = rows.begin(); i != rows.end(); ++i) {
 725                 TreeModel::Row row = (*i);
 726                 MixerStrip* strip = row[track_columns.strip];
 727
 728                 if (strip == 0) {
 729                         continue;
 730                 }
 731
 732                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
 733                         continue;
 734                 }
 735
 736                 boost::shared_ptr<AudioTrack> at = strip->audio_track();
 737
 738                 switch (tracks) {
 739                 case 0:
 740                         (*i)[track_columns.visible] = yn;
 741                         break;
 742
 743                 case 1:
 744                         if (at) { /* track */
 745                                 (*i)[track_columns.visible] = yn;
 746                         }
 747                         break;
 748
 749                 case 2:
 750                         if (!at) { /* bus */
 751                                 (*i)[track_columns.visible] = yn;
 752                         }
 753                         break;
 754                 }
 755         }
 756
 757         no_track_list_redisplay = false;
 758         redisplay_track_list ();
 759 }
 760
 761 void
 762 Mixer_UI::hide_all_routes ()
 763 {
 764         set_all_strips_visibility (false);
 765 }
 766
 767 void
 768 Mixer_UI::show_all_routes ()
 769 {
 770         set_all_strips_visibility (true);
 771 }
 772
 773 void
 774 Mixer_UI::show_all_audiobus ()
 775 {
 776         set_all_audio_visibility (2, true);
 777 }
 778 void
 779 Mixer_UI::hide_all_audiobus ()
 780 {
 781         set_all_audio_visibility (2, false);
 782 }
 783
 784 void
 785 Mixer_UI::show_all_audiotracks()
 786 {
 787         set_all_audio_visibility (1, true);
 788 }
 789 void
 790 Mixer_UI::hide_all_audiotracks ()
 791 {
 792         set_all_audio_visibility (1, false);
 793 }
 794
 795 void
 796 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
 797 {
 798         strip_redisplay_does_not_sync_order_keys = true;
 799         redisplay_track_list ();
 800         strip_redisplay_does_not_sync_order_keys = false;
 801 }
 802
 803 void
 804 Mixer_UI::track_list_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator&)
 805 {
 806         // never reset order keys because of a property change
 807         strip_redisplay_does_not_reset_order_keys = true;
 808         redisplay_track_list ();
 809         strip_redisplay_does_not_reset_order_keys = false;
 810 }
 811
 812 void
 813 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
 814 {
 815         /* this could require an order sync */
 816         if (_session && !_session->deletion_in_progress()) {
 817                 redisplay_track_list ();
 818         }
 819 }
 820
 821 void
 822 Mixer_UI::redisplay_track_list ()
 823 {
 824         TreeModel::Children rows = track_model->children();
 825         TreeModel::Children::iterator i;
 826         long regular_order = 0;
 827         long hidden_order = 999999; // arbitary high number
 828
 829         if (no_track_list_redisplay) {
 830                 return;
 831         }
 832
 833         for (i = rows.begin(); i != rows.end(); ++i) {
 834
 835                 MixerStrip* strip = (*i)[track_columns.strip];
 836
 837                 if (strip == 0) {
 838                         /* we're in the middle of changing a row, don't worry */
 839                         continue;
 840                 }
 841
 842                 bool const visible = (*i)[track_columns.visible];
 843
 844                 if (visible) {
 845                         strip->set_gui_property ("visible", true);
 846
 847                         if (strip->packed()) {
 848
 849                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
 850                                         out_packer.reorder_child (*strip, -1);
 851
 852                                         if (!strip_redisplay_does_not_reset_order_keys) {
 853                                                 if (strip->route()->is_master()) {
 854                                                         strip->route()->set_order_key (MixerSort, Route::MasterBusRemoteControlID);
 855                                                 } else {
 856                                                         strip->route()->set_order_key (MixerSort, Route::MonitorBusRemoteControlID);
 857                                                 }
 858                                         }
 859
 860                                 } else {
 861                                         strip_packer.reorder_child (*strip, -1); /* put at end */
 862
 863                                         if (!strip_redisplay_does_not_reset_order_keys) {
 864                                                 strip->route()->set_order_key (MixerSort, regular_order++);
 865                                         }
 866
 867                                 }
 868
 869                         } else {
 870
 871                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
 872                                         out_packer.pack_start (*strip, false, false);
 873                                         if (!strip_redisplay_does_not_reset_order_keys) {
 874                                                 if (strip->route()->is_master()) {
 875                                                         strip->route()->set_order_key (MixerSort, Route::MasterBusRemoteControlID);
 876                                                 } else {
 877                                                         strip->route()->set_order_key (MixerSort, Route::MonitorBusRemoteControlID);
 878                                                 }
 879                                         }
 880                                 } else {
 881                                         strip_packer.pack_start (*strip, false, false);
 882
 883                                         if (!strip_redisplay_does_not_reset_order_keys) {
 884                                                 strip->route()->set_order_key (MixerSort, regular_order++);
 885                                         }
 886                                 }
 887                                 strip->set_packed (true);
 888                         }
 889
 890                 } else {
 891
 892                         strip->set_gui_property ("visible", false);
 893
 894                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 895                                 /* do nothing, these cannot be hidden */
 896                         } else {
 897                                 if (strip->packed()) {
 898                                         strip_packer.remove (*strip);
 899                                         strip->set_packed (false);
 900                                 }
 901
 902                                 if (!strip_redisplay_does_not_reset_order_keys) {
 903                                         strip->route()->set_order_key (MixerSort, hidden_order++);
 904                                 }
 905                         }
 906                 }
 907         }
 908
 909         if (!strip_redisplay_does_not_reset_order_keys && !strip_redisplay_does_not_sync_order_keys) {
 910                 _session->sync_order_keys (MixerSort);
 911         }
 912
 913         _group_tabs->set_dirty ();
 914 }
 915
 916 void
 917 Mixer_UI::strip_width_changed ()
 918 {
 919         _group_tabs->set_dirty ();
 920
 921 #ifdef GTKOSX
 922         TreeModel::Children rows = track_model->children();
 923         TreeModel::Children::iterator i;
 924         long order;
 925
 926         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
 927                 MixerStrip* strip = (*i)[track_columns.strip];
 928
 929                 if (strip == 0) {
 930                         continue;
 931                 }
 932
 933                 bool visible = (*i)[track_columns.visible];
 934
 935                 if (visible) {
 936                         strip->queue_draw();
 937                 }
 938         }
 939 #endif
 940
 941 }
 942
 943 struct SignalOrderRouteSorter {
 944     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
 945             return a->order_key (MixerSort) < b->order_key (MixerSort);
 946     }
 947 };
 948
 949 void
 950 Mixer_UI::initial_track_display ()
 951 {
 952         boost::shared_ptr<RouteList> routes = _session->get_routes();
 953         RouteList copy (*routes);
 954         SignalOrderRouteSorter sorter;
 955
 956         copy.sort (sorter);
 957
 958         no_track_list_redisplay = true;
 959
 960         track_model->clear ();
 961
 962         add_strip (copy);
 963
 964         no_track_list_redisplay = false;
 965
 966         redisplay_track_list ();
 967 }
 968
 969 void
 970 Mixer_UI::show_track_list_menu ()
 971 {
 972         if (track_menu == 0) {
 973                 build_track_menu ();
 974         }
 975
 976         track_menu->popup (1, gtk_get_current_event_time());
 977 }
 978
 979 bool
 980 Mixer_UI::track_display_button_press (GdkEventButton* ev)
 981 {
 982         if (Keyboard::is_context_menu_event (ev)) {
 983                 show_track_list_menu ();
 984                 return true;
 985         }
 986
 987         TreeIter iter;
 988         TreeModel::Path path;
 989         TreeViewColumn* column;
 990         int cellx;
 991         int celly;
 992
 993         if (!track_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
 994                 return false;
 995         }
 996
 997         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
 998         case 0:
 999                 /* allow normal processing to occur */
1000                 return false;
1001
1002         case 1: /* visibility */
1003
1004                 if ((iter = track_model->get_iter (path))) {
1005                         MixerStrip* strip = (*iter)[track_columns.strip];
1006                         if (strip) {
1007
1008                                 if (!strip->route()->is_master() && !strip->route()->is_monitor()) {
1009                                         bool visible = (*iter)[track_columns.visible];
1010                                         (*iter)[track_columns.visible] = !visible;
1011                                 }
1012 #ifdef GTKOSX
1013                                 track_display.queue_draw();
1014 #endif
1015                         }
1016                 }
1017                 return true;
1018
1019         default:
1020                 break;
1021         }
1022
1023         return false;
1024 }
1025
1026
1027 void
1028 Mixer_UI::build_track_menu ()
1029 {
1030         using namespace Menu_Helpers;
1031         using namespace Gtk;
1032
1033         track_menu = new Menu;
1034         track_menu->set_name ("ArdourContextMenu");
1035         MenuList& items = track_menu->items();
1036
1037         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1038         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1039         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1040         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1041         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1042         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1043
1044 }
1045
1046 void
1047 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1048 {
1049         if (!what_changed.contains (ARDOUR::Properties::name)) {
1050                 return;
1051         }
1052
1053         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1054
1055         TreeModel::Children rows = track_model->children();
1056         TreeModel::Children::iterator i;
1057
1058         for (i = rows.begin(); i != rows.end(); ++i) {
1059                 if ((*i)[track_columns.strip] == mx) {
1060                         (*i)[track_columns.text] = mx->route()->name();
1061                         return;
1062                 }
1063         }
1064
1065         error << _("track display list item for renamed strip not found!") << endmsg;
1066 }
1067
1068 bool
1069 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1070 {
1071         TreeModel::Path path;
1072         TreeViewColumn* column;
1073         int cellx;
1074         int celly;
1075
1076         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1077                 return false;
1078         }
1079
1080         TreeIter iter = group_model->get_iter (path);
1081         if (!iter) {
1082                 return false;
1083         }
1084
1085         RouteGroup* group = (*iter)[group_columns.group];
1086
1087         if (Keyboard::is_context_menu_event (ev)) {
1088                 _group_tabs->get_menu(group)->popup (1, ev->time);
1089                 return true;
1090         }
1091
1092         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1093         case 0:
1094                 if (Keyboard::is_edit_event (ev)) {
1095                         if (group) {
1096                                 // edit_route_group (group);
1097 #ifdef GTKOSX
1098                                 group_display.queue_draw();
1099 #endif
1100                                 return true;
1101                         }
1102                 }
1103                 break;
1104
1105         case 1:
1106         {
1107                 bool visible = (*iter)[group_columns.visible];
1108                 (*iter)[group_columns.visible] = !visible;
1109 #ifdef GTKOSX
1110                 group_display.queue_draw();
1111 #endif
1112                 return true;
1113         }
1114
1115         default:
1116                 break;
1117         }
1118
1119         return false;
1120  }
1121
1122 void
1123 Mixer_UI::activate_all_route_groups ()
1124 {
1125         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1126 }
1127
1128 void
1129 Mixer_UI::disable_all_route_groups ()
1130 {
1131         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1132 }
1133
1134 void
1135 Mixer_UI::route_groups_changed ()
1136 {
1137         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1138
1139         _in_group_rebuild_or_clear = true;
1140
1141         /* just rebuild the while thing */
1142
1143         group_model->clear ();
1144
1145         {
1146                 TreeModel::Row row;
1147                 row = *(group_model->append());
1148                 row[group_columns.visible] = true;
1149                 row[group_columns.text] = (_("-all-"));
1150                 row[group_columns.group] = 0;
1151         }
1152
1153         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1154
1155         _group_tabs->set_dirty ();
1156         _in_group_rebuild_or_clear = false;
1157 }
1158
1159 void
1160 Mixer_UI::new_route_group ()
1161 {
1162         RouteList rl;
1163
1164         _group_tabs->run_new_group_dialog (rl);
1165 }
1166
1167 void
1168 Mixer_UI::remove_selected_route_group ()
1169 {
1170         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1171         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1172
1173         if (rows.empty()) {
1174                 return;
1175         }
1176
1177         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1178         TreeIter iter;
1179
1180         /* selection mode is single, so rows.begin() is it */
1181
1182         if ((iter = group_model->get_iter (*i))) {
1183
1184                 RouteGroup* rg = (*iter)[group_columns.group];
1185
1186                 if (rg) {
1187                         _session->remove_route_group (*rg);
1188                 }
1189         }
1190 }
1191
1192 void
1193 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1194 {
1195         if (in_group_row_change) {
1196                 return;
1197         }
1198
1199         /* force an update of any mixer strips that are using this group,
1200            otherwise mix group names don't change in mixer strips
1201         */
1202
1203         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1204                 if ((*i)->route_group() == group) {
1205                         (*i)->route_group_changed();
1206                 }
1207         }
1208
1209         TreeModel::iterator i;
1210         TreeModel::Children rows = group_model->children();
1211         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1212
1213         in_group_row_change = true;
1214
1215         for (i = rows.begin(); i != rows.end(); ++i) {
1216                 if ((*i)[group_columns.group] == group) {
1217                         (*i)[group_columns.visible] = !group->is_hidden ();
1218                         (*i)[group_columns.text] = group->name ();
1219                         break;
1220                 }
1221         }
1222
1223         in_group_row_change = false;
1224
1225         if (change.contains (Properties::name)) {
1226                 _group_tabs->set_dirty ();
1227         }
1228
1229         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1230                 if ((*j)->route_group() == group) {
1231                         if (group->is_hidden ()) {
1232                                 hide_strip (*j);
1233                         } else {
1234                                 show_strip (*j);
1235                         }
1236                 }
1237         }
1238 }
1239
1240 void
1241 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1242 {
1243         RouteGroup* group;
1244         TreeIter iter;
1245
1246         if ((iter = group_model->get_iter (path))) {
1247
1248                 if ((group = (*iter)[group_columns.group]) == 0) {
1249                         return;
1250                 }
1251
1252                 if (new_text != group->name()) {
1253                         group->set_name (new_text);
1254                 }
1255         }
1256 }
1257
1258 void
1259 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1260 {
1261         RouteGroup* group;
1262
1263         if (in_group_row_change) {
1264                 return;
1265         }
1266
1267         if ((group = (*iter)[group_columns.group]) == 0) {
1268                 return;
1269         }
1270
1271         std::string name = (*iter)[group_columns.text];
1272
1273         if (name != group->name()) {
1274                 group->set_name (name);
1275         }
1276
1277         bool hidden = !(*iter)[group_columns.visible];
1278
1279         if (hidden != group->is_hidden ()) {
1280                 group->set_hidden (hidden, this);
1281         }
1282 }
1283
1284 /** Called when a group model row is deleted, but also when the model is
1285  *  reordered by a user drag-and-drop; the latter is what we are
1286  *  interested in here.
1287  */
1288 void
1289 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1290 {
1291         if (_in_group_rebuild_or_clear) {
1292                 return;
1293         }
1294
1295         /* Re-write the session's route group list so that the new order is preserved */
1296
1297         list<RouteGroup*> new_list;
1298
1299         Gtk::TreeModel::Children children = group_model->children();
1300         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1301                 RouteGroup* g = (*i)[group_columns.group];
1302                 if (g) {
1303                         new_list.push_back (g);
1304                 }
1305         }
1306
1307         _session->reorder_route_groups (new_list);
1308 }
1309
1310
1311 void
1312 Mixer_UI::add_route_group (RouteGroup* group)
1313 {
1314         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1315         bool focus = false;
1316
1317         in_group_row_change = true;
1318
1319         TreeModel::Row row = *(group_model->append());
1320         row[group_columns.visible] = !group->is_hidden ();
1321         row[group_columns.group] = group;
1322         if (!group->name().empty()) {
1323                 row[group_columns.text] = group->name();
1324         } else {
1325                 row[group_columns.text] = _("unnamed");
1326                 focus = true;
1327         }
1328
1329         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1330
1331         if (focus) {
1332                 TreeViewColumn* col = group_display.get_column (0);
1333                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1334                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1335         }
1336
1337         _group_tabs->set_dirty ();
1338
1339         in_group_row_change = false;
1340 }
1341
1342 bool
1343 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1344 {
1345         using namespace Menu_Helpers;
1346
1347         if (Keyboard::is_context_menu_event (ev)) {
1348                 ARDOUR_UI::instance()->add_route (this);
1349                 return true;
1350         }
1351
1352         return false;
1353 }
1354
1355 void
1356 Mixer_UI::set_strip_width (Width w)
1357 {
1358         _strip_width = w;
1359
1360         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1361                 (*i)->set_width_enum (w, this);
1362         }
1363 }
1364
1365 void
1366 Mixer_UI::set_window_pos_and_size ()
1367 {
1368         resize (m_width, m_height);
1369         move (m_root_x, m_root_y);
1370 }
1371
1372         void
1373 Mixer_UI::get_window_pos_and_size ()
1374 {
1375         get_position(m_root_x, m_root_y);
1376         get_size(m_width, m_height);
1377 }
1378
1379 int
1380 Mixer_UI::set_state (const XMLNode& node)
1381 {
1382         const XMLProperty* prop;
1383         XMLNode* geometry;
1384
1385         m_width = default_width;
1386         m_height = default_height;
1387         m_root_x = 1;
1388         m_root_y = 1;
1389
1390         if ((geometry = find_named_node (node, "geometry")) != 0) {
1391
1392                 XMLProperty* prop;
1393
1394                 if ((prop = geometry->property("x_size")) == 0) {
1395                         prop = geometry->property ("x-size");
1396                 }
1397                 if (prop) {
1398                         m_width = atoi(prop->value());
1399                 }
1400                 if ((prop = geometry->property("y_size")) == 0) {
1401                         prop = geometry->property ("y-size");
1402                 }
1403                 if (prop) {
1404                         m_height = atoi(prop->value());
1405                 }
1406
1407                 if ((prop = geometry->property ("x_pos")) == 0) {
1408                         prop = geometry->property ("x-pos");
1409                 }
1410                 if (prop) {
1411                         m_root_x = atoi (prop->value());
1412
1413                 }
1414                 if ((prop = geometry->property ("y_pos")) == 0) {
1415                         prop = geometry->property ("y-pos");
1416                 }
1417                 if (prop) {
1418                         m_root_y = atoi (prop->value());
1419                 }
1420         }
1421
1422         set_window_pos_and_size ();
1423
1424         if ((prop = node.property ("narrow-strips"))) {
1425                 if (string_is_affirmative (prop->value())) {
1426                         set_strip_width (Narrow);
1427                 } else {
1428                         set_strip_width (Wide);
1429                 }
1430         }
1431
1432         if ((prop = node.property ("show-mixer"))) {
1433                 if (string_is_affirmative (prop->value())) {
1434                        _visible = true;
1435                 }
1436         }
1437
1438         return 0;
1439 }
1440
1441 XMLNode&
1442 Mixer_UI::get_state (void)
1443 {
1444         XMLNode* node = new XMLNode ("Mixer");
1445
1446         if (is_realized()) {
1447                 Glib::RefPtr<Gdk::Window> win = get_window();
1448
1449                 get_window_pos_and_size ();
1450
1451                 XMLNode* geometry = new XMLNode ("geometry");
1452                 char buf[32];
1453                 snprintf(buf, sizeof(buf), "%d", m_width);
1454                 geometry->add_property(X_("x_size"), string(buf));
1455                 snprintf(buf, sizeof(buf), "%d", m_height);
1456                 geometry->add_property(X_("y_size"), string(buf));
1457                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1458                 geometry->add_property(X_("x_pos"), string(buf));
1459                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1460                 geometry->add_property(X_("y_pos"), string(buf));
1461
1462                 // written only for compatibility, they are not used.
1463                 snprintf(buf, sizeof(buf), "%d", 0);
1464                 geometry->add_property(X_("x_off"), string(buf));
1465                 snprintf(buf, sizeof(buf), "%d", 0);
1466                 geometry->add_property(X_("y_off"), string(buf));
1467
1468                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1469                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1470                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1471                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1472
1473                 node->add_child_nocopy (*geometry);
1474         }
1475
1476         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1477
1478         node->add_property ("show-mixer", _visible ? "yes" : "no");
1479
1480         return *node;
1481 }
1482
1483
1484 void
1485 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1486 {
1487         int pos;
1488         XMLProperty* prop = 0;
1489         char buf[32];
1490         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1491         XMLNode* geometry;
1492         int height;
1493         static int32_t done[3] = { 0, 0, 0 };
1494
1495         height = default_height;
1496
1497         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1498
1499                 if ((prop = geometry->property ("y_size")) == 0) {
1500                         prop = geometry->property ("y-size");
1501                 }
1502                 if (prop) {
1503                         height = atoi (prop->value());
1504                 }
1505         }
1506
1507         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1508
1509                 if (done[0]) {
1510                         return;
1511                 }
1512
1513                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1514                         pos = height / 3;
1515                         snprintf (buf, sizeof(buf), "%d", pos);
1516                 } else {
1517                         pos = atoi (prop->value());
1518                 }
1519
1520                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1521                         rhs_pane1.set_position (pos);
1522                 }
1523
1524         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1525
1526                 if (done[2]) {
1527                         return;
1528                 }
1529
1530                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1531                         pos = 75;
1532                         snprintf (buf, sizeof(buf), "%d", pos);
1533                 } else {
1534                         pos = atoi (prop->value());
1535                 }
1536
1537                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1538                         list_hpane.set_position (pos);
1539                 }
1540         }
1541 }
1542 void
1543 Mixer_UI::scroll_left ()
1544 {
1545         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1546         /* stupid GTK: can't rely on clamping across versions */
1547         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1548 }
1549
1550 void
1551 Mixer_UI::scroll_right ()
1552 {
1553         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1554         /* stupid GTK: can't rely on clamping across versions */
1555         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1556 }
1557
1558 bool
1559 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1560 {
1561         /* focus widget gets first shot, then bindings, otherwise
1562            forward to main window
1563         */
1564
1565         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1566                 return true;
1567         }
1568
1569         KeyboardKey k (ev->state, ev->keyval);
1570
1571         GtkAccelKey key;
1572
1573         /* Handle toggle-mixer-on-top here, so it can do a different thing if the
1574            mixer is already on top and received this key press.
1575         */
1576         if (gtk_accel_map_lookup_entry("<Actions>/Common/toggle-mixer-on-top", &key)) {
1577                 if (int (k.state()) == key.accel_mods && k.key() == key.accel_key) {
1578                         ARDOUR_UI::instance()->goto_editor_window();
1579                         return true;
1580                 }
1581         }
1582
1583         if (bindings.activate (k, Bindings::Press)) {
1584                 return true;
1585         }
1586
1587         return forward_key_press (ev);
1588 }
1589
1590 bool
1591 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1592 {
1593         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1594                 return true;
1595         }
1596
1597         KeyboardKey k (ev->state, ev->keyval);
1598
1599         if (bindings.activate (k, Bindings::Release)) {
1600                 return true;
1601         }
1602
1603         /* don't forward releases */
1604
1605         return true;
1606 }
1607
1608 bool
1609 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1610 {
1611         switch (ev->direction) {
1612         case GDK_SCROLL_LEFT:
1613                 scroll_left ();
1614                 return true;
1615         case GDK_SCROLL_UP:
1616                 if (ev->state & Keyboard::TertiaryModifier) {
1617                         scroll_left ();
1618                         return true;
1619                 }
1620                 return false;
1621
1622         case GDK_SCROLL_RIGHT:
1623                 scroll_right ();
1624                 return true;
1625
1626         case GDK_SCROLL_DOWN:
1627                 if (ev->state & Keyboard::TertiaryModifier) {
1628                         scroll_right ();
1629                         return true;
1630                 }
1631                 return false;
1632         }
1633
1634         return false;
1635 }
1636
1637
1638 void
1639 Mixer_UI::parameter_changed (string const & p)
1640 {
1641         if (p == "show-group-tabs") {
1642                 bool const s = _session->config.get_show_group_tabs ();
1643                 if (s) {
1644                         _group_tabs->show ();
1645                 } else {
1646                         _group_tabs->hide ();
1647                 }
1648         } else if (p == "default-narrow_ms") {
1649                 bool const s = Config->get_default_narrow_ms ();
1650                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1651                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1652                 }
1653         }
1654 }
1655
1656 void
1657 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1658 {
1659         g->set_active (a, this);
1660 }
1661
1662 PluginSelector*
1663 Mixer_UI::plugin_selector()
1664 {
1665 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1666         if (!_plugin_selector)
1667                 _plugin_selector = new PluginSelector (PluginManager::instance());
1668 #endif
1669
1670         return _plugin_selector;
1671 }
1672
1673 void
1674 Mixer_UI::setup_track_display ()
1675 {
1676         track_model = ListStore::create (track_columns);
1677         track_display.set_model (track_model);
1678         track_display.append_column (_("Strips"), track_columns.text);
1679         track_display.append_column (_("Show"), track_columns.visible);
1680         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1681         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1682         track_display.get_column (0)->set_expand(true);
1683         track_display.get_column (1)->set_expand(false);
1684         track_display.set_name (X_("MixerTrackDisplayList"));
1685         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1686         track_display.set_reorderable (true);
1687         track_display.set_headers_visible (true);
1688
1689         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1690         track_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_change));
1691         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1692
1693         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1694         track_list_visible_cell->property_activatable() = true;
1695         track_list_visible_cell->property_radio() = false;
1696
1697         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1698
1699         track_display_scroller.add (track_display);
1700         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1701
1702         VBox* v = manage (new VBox);
1703         v->show ();
1704         v->pack_start (track_display_scroller, true, true);
1705
1706         Button* b = manage (new Button);
1707         b->show ();
1708         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1709         w->show ();
1710         b->add (*w);
1711
1712         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1713
1714         v->pack_start (*b, false, false);
1715
1716         track_display_frame.set_name("BaseFrame");
1717         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1718         track_display_frame.add (*v);
1719
1720         track_display_scroller.show();
1721         track_display_frame.show();
1722         track_display.show();
1723 }
1724
1725 void
1726 Mixer_UI::new_track_or_bus ()
1727 {
1728         ARDOUR_UI::instance()->add_route (this);
1729 }
1730
1731
1732 void
1733 Mixer_UI::update_title ()
1734 {
1735         if (_session) {
1736                 string n;
1737
1738                 if (_session->snap_name() != _session->name()) {
1739                         n = _session->snap_name ();
1740                 } else {
1741                         n = _session->name ();
1742                 }
1743
1744                 if (_session->dirty ()) {
1745                         n = "*" + n;
1746                 }
1747
1748                 WindowTitle title (n);
1749                 title += S_("Window|Mixer");
1750                 title += Glib::get_application_name ();
1751                 set_title (title.get_string());
1752
1753         } else {
1754
1755                 WindowTitle title (S_("Window|Mixer"));
1756                 title += Glib::get_application_name ();
1757                 set_title (title.get_string());
1758         }
1759 }
1760
1761 MixerStrip*
1762 Mixer_UI::strip_by_x (int x)
1763 {
1764         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1765                 int x1, x2, y;
1766
1767                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1768                 x2 = x1 + (*i)->get_width();
1769
1770                 if (x >= x1 && x <= x2) {
1771                         return (*i);
1772                 }
1773         }
1774
1775         return 0;
1776 }
1777
1778 void
1779 Mixer_UI::set_route_targets_for_operation ()
1780 {
1781         _route_targets.clear ();
1782
1783         if (!_selection.empty()) {
1784                 _route_targets = _selection.routes;
1785                 return;
1786         }
1787
1788         /* try to get mixer strip at mouse */
1789
1790         int x, y;
1791         get_pointer (x, y);
1792
1793         MixerStrip* ms = strip_by_x (x);
1794
1795         if (ms) {
1796                 _route_targets.insert (ms);
1797         }
1798 }
1799
1800 void
1801 Mixer_UI::monitor_section_going_away ()
1802 {
1803         if (_monitor_section) {
1804                 out_packer.remove (_monitor_section->tearoff());
1805                 _monitor_section->set_session (0);
1806         }
1807 }