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 "pbd/unwind.h"
  33
  34 #include <glibmm/thread.h>
  35
  36 #include <gtkmm2ext/gtk_ui.h>
  37 #include <gtkmm2ext/utils.h>
  38 #include <gtkmm2ext/tearoff.h>
  39 #include <gtkmm2ext/window_title.h>
  40
  41 #include "ardour/debug.h"
  42 #include "ardour/plugin_manager.h"
  43 #include "ardour/route_group.h"
  44 #include "ardour/session.h"
  45
  46 #include "keyboard.h"
  47 #include "mixer_ui.h"
  48 #include "mixer_strip.h"
  49 #include "monitor_section.h"
  50 #include "plugin_selector.h"
  51 #include "public_editor.h"
  52 #include "ardour_ui.h"
  53 #include "prompter.h"
  54 #include "utils.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_model_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 ("MixerGroupList");
 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_model ();
 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::sync_order_keys_from_model ()
 399 {
 400         if (ignore_reorder || !_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 sync order keys from model\n");
 411
 412         TreeModel::Children::iterator ri;
 413         bool changed = false;
 414         uint32_t order = 0;
 415
 416         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 417                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 418                 bool visible = (*ri)[track_columns.visible];
 419
 420                 uint32_t old_key = route->order_key (MixerSort);
 421                 uint32_t new_key;
 422
 423                 if (!visible) {
 424                         new_key = UINT_MAX;
 425                 } else {
 426                         new_key = order;
 427                 }
 428
 429                 if (old_key != new_key) {
 430                         route->set_order_key (MixerSort, new_key);
 431                         changed = true;
 432                 }
 433
 434                 order++;
 435         }
 436
 437         if (changed) {
 438                 /* tell everyone that we changed the mixer sort keys */
 439                 _session->sync_order_keys (MixerSort);
 440         }
 441 }
 442
 443 void
 444 Mixer_UI::sync_model_from_order_keys (RouteSortOrderKey src)
 445 {
 446         if (!_session || _session->deletion_in_progress()) {
 447                 return;
 448         }
 449
 450         DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("mixer sync model from order keys, src = %1\n", enum_2_string (src)));
 451
 452         if (src == EditorSort) {
 453
 454                 if (!Config->get_sync_all_route_ordering()) {
 455                         /* editor sort keys changed - we don't care */
 456                         return;
 457                 }
 458
 459                 DEBUG_TRACE (DEBUG::OrderKeys, "reset mixer order key to match editor\n");
 460
 461                 /* editor sort keys were changed, update the mixer sort
 462                  * keys since "sync mixer+editor order" is enabled.
 463                  */
 464
 465                 boost::shared_ptr<RouteList> r = _session->get_routes ();
 466
 467                 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
 468                         (*i)->sync_order_keys (src);
 469                 }
 470         }
 471
 472         /* we could get here after either a change in the Mixer or Editor sort
 473          * order, but either way, the mixer order keys reflect the intended
 474          * order for the GUI, so reorder the treeview model to match it.
 475          */
 476
 477         vector<int> neworder;
 478         TreeModel::Children rows = track_model->children();
 479         uint32_t n = 0;
 480
 481         if (rows.empty()) {
 482                 return;
 483         }
 484
 485         neworder.assign (rows.size(), 0);
 486
 487         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++n) {
 488                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 489                 neworder[route->order_key (MixerSort)] = n;
 490                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("mixer change order for %1 to %2\n",
 491                                                                route->name(), route->order_key (MixerSort)));
 492         }
 493
 494         {
 495                 Unwinder<bool> uw (ignore_reorder, true);
 496                 track_model->reorder (neworder);
 497         }
 498
 499         redisplay_track_list ();
 500 }
 501
 502 void
 503 Mixer_UI::follow_editor_selection ()
 504 {
 505         if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
 506                 return;
 507         }
 508
 509         _following_editor_selection = true;
 510         _selection.block_routes_changed (true);
 511
 512         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 513
 514         _selection.clear_routes ();
 515
 516         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 517                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 518                 if (rtav) {
 519                         MixerStrip* ms = strip_by_route (rtav->route());
 520                         if (ms) {
 521                                 _selection.add (ms);
 522                         }
 523                 }
 524         }
 525
 526         _following_editor_selection = false;
 527         _selection.block_routes_changed (false);
 528 }
 529
 530
 531 MixerStrip*
 532 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 533 {
 534         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 535                 if ((*i)->route() == r) {
 536                         return (*i);
 537                 }
 538         }
 539
 540         return 0;
 541 }
 542
 543 bool
 544 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 545 {
 546         if (ev->button == 1) {
 547                 if (_selection.selected (strip)) {
 548                         /* primary-click: toggle selection state of strip */
 549                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 550                                 _selection.remove (strip);
 551                         }
 552                 } else {
 553                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 554                                 _selection.add (strip);
 555                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 556
 557                                 if (!_selection.selected(strip)) {
 558
 559                                         /* extend selection */
 560
 561                                         vector<MixerStrip*> tmp;
 562                                         bool accumulate = false;
 563
 564                                         tmp.push_back (strip);
 565
 566                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 567                                                 if ((*i) == strip) {
 568                                                         /* hit clicked strip, start accumulating till we hit the first
 569                                                            selected strip
 570                                                         */
 571                                                         if (accumulate) {
 572                                                                 /* done */
 573                                                                 break;
 574                                                         } else {
 575                                                                 accumulate = true;
 576                                                         }
 577                                                 } else if (_selection.selected (*i)) {
 578                                                         /* hit selected strip. if currently accumulating others,
 579                                                            we're done. if not accumulating others, start doing so.
 580                                                         */
 581                                                         if (accumulate) {
 582                                                                 /* done */
 583                                                                 break;
 584                                                         } else {
 585                                                                 accumulate = true;
 586                                                         }
 587                                                 } else {
 588                                                         if (accumulate) {
 589                                                                 tmp.push_back (*i);
 590                                                         }
 591                                                 }
 592                                         }
 593
 594                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 595                                                 _selection.add (*i);
 596                                         }
 597                                 }
 598
 599                         } else {
 600                                 _selection.set (strip);
 601                         }
 602                 }
 603         }
 604
 605         return true;
 606 }
 607
 608 void
 609 Mixer_UI::set_session (Session* sess)
 610 {
 611         SessionHandlePtr::set_session (sess);
 612
 613         if (_plugin_selector) {
 614                 _plugin_selector->set_session (_session);
 615         }
 616
 617         _group_tabs->set_session (sess);
 618
 619         if (!_session) {
 620                 return;
 621         }
 622
 623         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 624         set_state (*node);
 625
 626         update_title ();
 627
 628         initial_track_display ();
 629
 630         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 631         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 632         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 633         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 634         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 635         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 636         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 637
 638         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 639
 640         route_groups_changed ();
 641
 642         if (_visible) {
 643                 show_window();
 644
 645                 /* Bit of a hack; if we're here, we're opening the mixer because of our
 646                    instant XML state having a show-mixer property.  Fix up the corresponding
 647                    action state.
 648                 */
 649                 ActionManager::check_toggleaction ("<Actions>/Common/toggle-mixer");
 650         }
 651
 652         start_updating ();
 653 }
 654
 655 void
 656 Mixer_UI::session_going_away ()
 657 {
 658         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 659
 660         _in_group_rebuild_or_clear = true;
 661         group_model->clear ();
 662         _in_group_rebuild_or_clear = false;
 663
 664         _selection.clear ();
 665         track_model->clear ();
 666
 667         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 668                 delete (*i);
 669         }
 670
 671         if (_monitor_section) {
 672                 _monitor_section->tearoff().hide_visible ();
 673         }
 674
 675         strips.clear ();
 676
 677         stop_updating ();
 678
 679         SessionHandlePtr::session_going_away ();
 680
 681         _session = 0;
 682         update_title ();
 683 }
 684
 685 void
 686 Mixer_UI::show_strip (MixerStrip* ms)
 687 {
 688         TreeModel::Children rows = track_model->children();
 689         TreeModel::Children::iterator i;
 690
 691         for (i = rows.begin(); i != rows.end(); ++i) {
 692
 693                 MixerStrip* strip = (*i)[track_columns.strip];
 694                 if (strip == ms) {
 695                         (*i)[track_columns.visible] = true;
 696                         break;
 697                 }
 698         }
 699 }
 700
 701 void
 702 Mixer_UI::hide_strip (MixerStrip* ms)
 703 {
 704         TreeModel::Children rows = track_model->children();
 705         TreeModel::Children::iterator i;
 706
 707         for (i = rows.begin(); i != rows.end(); ++i) {
 708
 709                 MixerStrip* strip = (*i)[track_columns.strip];
 710                 if (strip == ms) {
 711                         (*i)[track_columns.visible] = false;
 712                         break;
 713                 }
 714         }
 715 }
 716
 717 gint
 718 Mixer_UI::start_updating ()
 719 {
 720     fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 721     return 0;
 722 }
 723
 724 gint
 725 Mixer_UI::stop_updating ()
 726 {
 727     fast_screen_update_connection.disconnect();
 728     return 0;
 729 }
 730
 731 void
 732 Mixer_UI::fast_update_strips ()
 733 {
 734         if (is_mapped () && _session) {
 735                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 736                         (*i)->fast_update ();
 737                 }
 738         }
 739 }
 740
 741 void
 742 Mixer_UI::set_all_strips_visibility (bool yn)
 743 {
 744         TreeModel::Children rows = track_model->children();
 745         TreeModel::Children::iterator i;
 746
 747         {
 748                 Unwinder<bool> uw (no_track_list_redisplay, true);
 749
 750                 for (i = rows.begin(); i != rows.end(); ++i) {
 751
 752                         TreeModel::Row row = (*i);
 753                         MixerStrip* strip = row[track_columns.strip];
 754
 755                         if (strip == 0) {
 756                                 continue;
 757                         }
 758
 759                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 760                                 continue;
 761                         }
 762
 763                         (*i)[track_columns.visible] = yn;
 764                 }
 765         }
 766
 767         redisplay_track_list ();
 768 }
 769
 770
 771 void
 772 Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
 773 {
 774         TreeModel::Children rows = track_model->children();
 775         TreeModel::Children::iterator i;
 776
 777         {
 778                 Unwinder<bool> uw (no_track_list_redisplay, true);
 779
 780                 for (i = rows.begin(); i != rows.end(); ++i) {
 781                         TreeModel::Row row = (*i);
 782                         MixerStrip* strip = row[track_columns.strip];
 783
 784                         if (strip == 0) {
 785                                 continue;
 786                         }
 787
 788                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 789                                 continue;
 790                         }
 791
 792                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
 793
 794                         switch (tracks) {
 795                         case 0:
 796                                 (*i)[track_columns.visible] = yn;
 797                                 break;
 798
 799                         case 1:
 800                                 if (at) { /* track */
 801                                         (*i)[track_columns.visible] = yn;
 802                                 }
 803                                 break;
 804
 805                         case 2:
 806                                 if (!at) { /* bus */
 807                                         (*i)[track_columns.visible] = yn;
 808                                 }
 809                                 break;
 810                         }
 811                 }
 812         }
 813
 814         redisplay_track_list ();
 815 }
 816
 817 void
 818 Mixer_UI::hide_all_routes ()
 819 {
 820         set_all_strips_visibility (false);
 821 }
 822
 823 void
 824 Mixer_UI::show_all_routes ()
 825 {
 826         set_all_strips_visibility (true);
 827 }
 828
 829 void
 830 Mixer_UI::show_all_audiobus ()
 831 {
 832         set_all_audio_visibility (2, true);
 833 }
 834 void
 835 Mixer_UI::hide_all_audiobus ()
 836 {
 837         set_all_audio_visibility (2, false);
 838 }
 839
 840 void
 841 Mixer_UI::show_all_audiotracks()
 842 {
 843         set_all_audio_visibility (1, true);
 844 }
 845 void
 846 Mixer_UI::hide_all_audiotracks ()
 847 {
 848         set_all_audio_visibility (1, false);
 849 }
 850
 851 void
 852 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
 853 {
 854         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
 855         sync_order_keys_from_model ();
 856 }
 857
 858 void
 859 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
 860 {
 861         /* this happens as the second step of a DnD within the treeview as well
 862            as when a row/route is actually deleted.
 863         */
 864         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
 865         sync_order_keys_from_model ();
 866 }
 867
 868 void
 869 Mixer_UI::redisplay_track_list ()
 870 {
 871         TreeModel::Children rows = track_model->children();
 872         TreeModel::Children::iterator i;
 873
 874         if (no_track_list_redisplay) {
 875                 return;
 876         }
 877
 878         for (i = rows.begin(); i != rows.end(); ++i) {
 879
 880                 MixerStrip* strip = (*i)[track_columns.strip];
 881
 882                 if (strip == 0) {
 883                         /* we're in the middle of changing a row, don't worry */
 884                         continue;
 885                 }
 886
 887                 bool const visible = (*i)[track_columns.visible];
 888
 889                 if (visible) {
 890                         strip->set_gui_property ("visible", true);
 891
 892                         if (strip->packed()) {
 893
 894                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
 895                                         out_packer.reorder_child (*strip, -1);
 896
 897                                 } else {
 898                                         strip_packer.reorder_child (*strip, -1); /* put at end */
 899                                 }
 900
 901                         } else {
 902
 903                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
 904                                         out_packer.pack_start (*strip, false, false);
 905                                 } else {
 906                                         strip_packer.pack_start (*strip, false, false);
 907                                 }
 908                                 strip->set_packed (true);
 909                         }
 910
 911                 } else {
 912
 913                         strip->set_gui_property ("visible", false);
 914
 915                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 916                                 /* do nothing, these cannot be hidden */
 917                         } else {
 918                                 if (strip->packed()) {
 919                                         strip_packer.remove (*strip);
 920                                         strip->set_packed (false);
 921                                 }
 922                         }
 923                 }
 924         }
 925
 926         _group_tabs->set_dirty ();
 927 }
 928
 929 void
 930 Mixer_UI::strip_width_changed ()
 931 {
 932         _group_tabs->set_dirty ();
 933
 934 #ifdef GTKOSX
 935         TreeModel::Children rows = track_model->children();
 936         TreeModel::Children::iterator i;
 937         long order;
 938
 939         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
 940                 MixerStrip* strip = (*i)[track_columns.strip];
 941
 942                 if (strip == 0) {
 943                         continue;
 944                 }
 945
 946                 bool visible = (*i)[track_columns.visible];
 947
 948                 if (visible) {
 949                         strip->queue_draw();
 950                 }
 951         }
 952 #endif
 953
 954 }
 955
 956 struct SignalOrderRouteSorter {
 957     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
 958             if (a->is_master() || a->is_monitor()) {
 959                     /* "a" is a special route (master, monitor, etc), and comes
 960                      * last in the mixer ordering
 961                      */
 962                     return false;
 963             } else if (b->is_master() || b->is_monitor()) {
 964                     /* everything comes before b */
 965                     return true;
 966             }
 967             return a->order_key (MixerSort) < b->order_key (MixerSort);
 968
 969     }
 970 };
 971
 972 void
 973 Mixer_UI::initial_track_display ()
 974 {
 975         boost::shared_ptr<RouteList> routes = _session->get_routes();
 976         RouteList copy (*routes);
 977         SignalOrderRouteSorter sorter;
 978
 979         copy.sort (sorter);
 980
 981         {
 982                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
 983                 Unwinder<bool> uw2 (ignore_reorder, true);
 984
 985                 track_model->clear ();
 986                 add_strips (copy);
 987         }
 988
 989         redisplay_track_list ();
 990 }
 991
 992 void
 993 Mixer_UI::show_track_list_menu ()
 994 {
 995         if (track_menu == 0) {
 996                 build_track_menu ();
 997         }
 998
 999         track_menu->popup (1, gtk_get_current_event_time());
1000 }
1001
1002 bool
1003 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1004 {
1005         if (Keyboard::is_context_menu_event (ev)) {
1006                 show_track_list_menu ();
1007                 return true;
1008         }
1009
1010         TreeIter iter;
1011         TreeModel::Path path;
1012         TreeViewColumn* column;
1013         int cellx;
1014         int celly;
1015
1016         if (!track_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1017                 return false;
1018         }
1019
1020         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1021         case 0:
1022                 /* allow normal processing to occur */
1023                 return false;
1024
1025         case 1: /* visibility */
1026
1027                 if ((iter = track_model->get_iter (path))) {
1028                         MixerStrip* strip = (*iter)[track_columns.strip];
1029                         if (strip) {
1030
1031                                 if (!strip->route()->is_master() && !strip->route()->is_monitor()) {
1032                                         bool visible = (*iter)[track_columns.visible];
1033                                         (*iter)[track_columns.visible] = !visible;
1034                                 }
1035 #ifdef GTKOSX
1036                                 track_display.queue_draw();
1037 #endif
1038                         }
1039                 }
1040                 return true;
1041
1042         default:
1043                 break;
1044         }
1045
1046         return false;
1047 }
1048
1049
1050 void
1051 Mixer_UI::build_track_menu ()
1052 {
1053         using namespace Menu_Helpers;
1054         using namespace Gtk;
1055
1056         track_menu = new Menu;
1057         track_menu->set_name ("ArdourContextMenu");
1058         MenuList& items = track_menu->items();
1059
1060         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1061         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1062         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1063         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1064         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1065         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1066
1067 }
1068
1069 void
1070 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1071 {
1072         if (!what_changed.contains (ARDOUR::Properties::name)) {
1073                 return;
1074         }
1075
1076         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1077
1078         TreeModel::Children rows = track_model->children();
1079         TreeModel::Children::iterator i;
1080
1081         for (i = rows.begin(); i != rows.end(); ++i) {
1082                 if ((*i)[track_columns.strip] == mx) {
1083                         (*i)[track_columns.text] = mx->route()->name();
1084                         return;
1085                 }
1086         }
1087
1088         error << _("track display list item for renamed strip not found!") << endmsg;
1089 }
1090
1091 bool
1092 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1093 {
1094         TreeModel::Path path;
1095         TreeViewColumn* column;
1096         int cellx;
1097         int celly;
1098
1099         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1100                 return false;
1101         }
1102
1103         TreeIter iter = group_model->get_iter (path);
1104         if (!iter) {
1105                 return false;
1106         }
1107
1108         RouteGroup* group = (*iter)[group_columns.group];
1109
1110         if (Keyboard::is_context_menu_event (ev)) {
1111                 _group_tabs->get_menu(group)->popup (1, ev->time);
1112                 return true;
1113         }
1114
1115         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1116         case 0:
1117                 if (Keyboard::is_edit_event (ev)) {
1118                         if (group) {
1119                                 // edit_route_group (group);
1120 #ifdef GTKOSX
1121                                 group_display.queue_draw();
1122 #endif
1123                                 return true;
1124                         }
1125                 }
1126                 break;
1127
1128         case 1:
1129         {
1130                 bool visible = (*iter)[group_columns.visible];
1131                 (*iter)[group_columns.visible] = !visible;
1132 #ifdef GTKOSX
1133                 group_display.queue_draw();
1134 #endif
1135                 return true;
1136         }
1137
1138         default:
1139                 break;
1140         }
1141
1142         return false;
1143  }
1144
1145 void
1146 Mixer_UI::activate_all_route_groups ()
1147 {
1148         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1149 }
1150
1151 void
1152 Mixer_UI::disable_all_route_groups ()
1153 {
1154         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1155 }
1156
1157 void
1158 Mixer_UI::route_groups_changed ()
1159 {
1160         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1161
1162         _in_group_rebuild_or_clear = true;
1163
1164         /* just rebuild the while thing */
1165
1166         group_model->clear ();
1167
1168         {
1169                 TreeModel::Row row;
1170                 row = *(group_model->append());
1171                 row[group_columns.visible] = true;
1172                 row[group_columns.text] = (_("-all-"));
1173                 row[group_columns.group] = 0;
1174         }
1175
1176         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1177
1178         _group_tabs->set_dirty ();
1179         _in_group_rebuild_or_clear = false;
1180 }
1181
1182 void
1183 Mixer_UI::new_route_group ()
1184 {
1185         RouteList rl;
1186
1187         _group_tabs->run_new_group_dialog (rl);
1188 }
1189
1190 void
1191 Mixer_UI::remove_selected_route_group ()
1192 {
1193         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1194         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1195
1196         if (rows.empty()) {
1197                 return;
1198         }
1199
1200         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1201         TreeIter iter;
1202
1203         /* selection mode is single, so rows.begin() is it */
1204
1205         if ((iter = group_model->get_iter (*i))) {
1206
1207                 RouteGroup* rg = (*iter)[group_columns.group];
1208
1209                 if (rg) {
1210                         _session->remove_route_group (*rg);
1211                 }
1212         }
1213 }
1214
1215 void
1216 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1217 {
1218         if (in_group_row_change) {
1219                 return;
1220         }
1221
1222         /* force an update of any mixer strips that are using this group,
1223            otherwise mix group names don't change in mixer strips
1224         */
1225
1226         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1227                 if ((*i)->route_group() == group) {
1228                         (*i)->route_group_changed();
1229                 }
1230         }
1231
1232         TreeModel::iterator i;
1233         TreeModel::Children rows = group_model->children();
1234         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1235
1236         in_group_row_change = true;
1237
1238         for (i = rows.begin(); i != rows.end(); ++i) {
1239                 if ((*i)[group_columns.group] == group) {
1240                         (*i)[group_columns.visible] = !group->is_hidden ();
1241                         (*i)[group_columns.text] = group->name ();
1242                         break;
1243                 }
1244         }
1245
1246         in_group_row_change = false;
1247
1248         if (change.contains (Properties::name)) {
1249                 _group_tabs->set_dirty ();
1250         }
1251
1252         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1253                 if ((*j)->route_group() == group) {
1254                         if (group->is_hidden ()) {
1255                                 hide_strip (*j);
1256                         } else {
1257                                 show_strip (*j);
1258                         }
1259                 }
1260         }
1261 }
1262
1263 void
1264 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1265 {
1266         RouteGroup* group;
1267         TreeIter iter;
1268
1269         if ((iter = group_model->get_iter (path))) {
1270
1271                 if ((group = (*iter)[group_columns.group]) == 0) {
1272                         return;
1273                 }
1274
1275                 if (new_text != group->name()) {
1276                         group->set_name (new_text);
1277                 }
1278         }
1279 }
1280
1281 void
1282 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1283 {
1284         RouteGroup* group;
1285
1286         if (in_group_row_change) {
1287                 return;
1288         }
1289
1290         if ((group = (*iter)[group_columns.group]) == 0) {
1291                 return;
1292         }
1293
1294         std::string name = (*iter)[group_columns.text];
1295
1296         if (name != group->name()) {
1297                 group->set_name (name);
1298         }
1299
1300         bool hidden = !(*iter)[group_columns.visible];
1301
1302         if (hidden != group->is_hidden ()) {
1303                 group->set_hidden (hidden, this);
1304         }
1305 }
1306
1307 /** Called when a group model row is deleted, but also when the model is
1308  *  reordered by a user drag-and-drop; the latter is what we are
1309  *  interested in here.
1310  */
1311 void
1312 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1313 {
1314         if (_in_group_rebuild_or_clear) {
1315                 return;
1316         }
1317
1318         /* Re-write the session's route group list so that the new order is preserved */
1319
1320         list<RouteGroup*> new_list;
1321
1322         Gtk::TreeModel::Children children = group_model->children();
1323         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1324                 RouteGroup* g = (*i)[group_columns.group];
1325                 if (g) {
1326                         new_list.push_back (g);
1327                 }
1328         }
1329
1330         _session->reorder_route_groups (new_list);
1331 }
1332
1333
1334 void
1335 Mixer_UI::add_route_group (RouteGroup* group)
1336 {
1337         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1338         bool focus = false;
1339
1340         in_group_row_change = true;
1341
1342         TreeModel::Row row = *(group_model->append());
1343         row[group_columns.visible] = !group->is_hidden ();
1344         row[group_columns.group] = group;
1345         if (!group->name().empty()) {
1346                 row[group_columns.text] = group->name();
1347         } else {
1348                 row[group_columns.text] = _("unnamed");
1349                 focus = true;
1350         }
1351
1352         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1353
1354         if (focus) {
1355                 TreeViewColumn* col = group_display.get_column (0);
1356                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1357                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1358         }
1359
1360         _group_tabs->set_dirty ();
1361
1362         in_group_row_change = false;
1363 }
1364
1365 bool
1366 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1367 {
1368         using namespace Menu_Helpers;
1369
1370         if (Keyboard::is_context_menu_event (ev)) {
1371                 ARDOUR_UI::instance()->add_route (this);
1372                 return true;
1373         }
1374
1375         return false;
1376 }
1377
1378 void
1379 Mixer_UI::set_strip_width (Width w)
1380 {
1381         _strip_width = w;
1382
1383         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1384                 (*i)->set_width_enum (w, this);
1385         }
1386 }
1387
1388 void
1389 Mixer_UI::set_window_pos_and_size ()
1390 {
1391         resize (m_width, m_height);
1392         move (m_root_x, m_root_y);
1393 }
1394
1395         void
1396 Mixer_UI::get_window_pos_and_size ()
1397 {
1398         get_position(m_root_x, m_root_y);
1399         get_size(m_width, m_height);
1400 }
1401
1402 int
1403 Mixer_UI::set_state (const XMLNode& node)
1404 {
1405         const XMLProperty* prop;
1406         XMLNode* geometry;
1407
1408         m_width = default_width;
1409         m_height = default_height;
1410         m_root_x = 1;
1411         m_root_y = 1;
1412
1413         if ((geometry = find_named_node (node, "geometry")) != 0) {
1414
1415                 XMLProperty* prop;
1416
1417                 if ((prop = geometry->property("x_size")) == 0) {
1418                         prop = geometry->property ("x-size");
1419                 }
1420                 if (prop) {
1421                         m_width = atoi(prop->value());
1422                 }
1423                 if ((prop = geometry->property("y_size")) == 0) {
1424                         prop = geometry->property ("y-size");
1425                 }
1426                 if (prop) {
1427                         m_height = atoi(prop->value());
1428                 }
1429
1430                 if ((prop = geometry->property ("x_pos")) == 0) {
1431                         prop = geometry->property ("x-pos");
1432                 }
1433                 if (prop) {
1434                         m_root_x = atoi (prop->value());
1435
1436                 }
1437                 if ((prop = geometry->property ("y_pos")) == 0) {
1438                         prop = geometry->property ("y-pos");
1439                 }
1440                 if (prop) {
1441                         m_root_y = atoi (prop->value());
1442                 }
1443         }
1444
1445         set_window_pos_and_size ();
1446
1447         if ((prop = node.property ("narrow-strips"))) {
1448                 if (string_is_affirmative (prop->value())) {
1449                         set_strip_width (Narrow);
1450                 } else {
1451                         set_strip_width (Wide);
1452                 }
1453         }
1454
1455         if ((prop = node.property ("show-mixer"))) {
1456                 if (string_is_affirmative (prop->value())) {
1457                        _visible = true;
1458                 }
1459         }
1460
1461         return 0;
1462 }
1463
1464 XMLNode&
1465 Mixer_UI::get_state (void)
1466 {
1467         XMLNode* node = new XMLNode ("Mixer");
1468
1469         if (is_realized()) {
1470                 Glib::RefPtr<Gdk::Window> win = get_window();
1471
1472                 get_window_pos_and_size ();
1473
1474                 XMLNode* geometry = new XMLNode ("geometry");
1475                 char buf[32];
1476                 snprintf(buf, sizeof(buf), "%d", m_width);
1477                 geometry->add_property(X_("x_size"), string(buf));
1478                 snprintf(buf, sizeof(buf), "%d", m_height);
1479                 geometry->add_property(X_("y_size"), string(buf));
1480                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1481                 geometry->add_property(X_("x_pos"), string(buf));
1482                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1483                 geometry->add_property(X_("y_pos"), string(buf));
1484
1485                 // written only for compatibility, they are not used.
1486                 snprintf(buf, sizeof(buf), "%d", 0);
1487                 geometry->add_property(X_("x_off"), string(buf));
1488                 snprintf(buf, sizeof(buf), "%d", 0);
1489                 geometry->add_property(X_("y_off"), string(buf));
1490
1491                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1492                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1493                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1494                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1495
1496                 node->add_child_nocopy (*geometry);
1497         }
1498
1499         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1500
1501         node->add_property ("show-mixer", _visible ? "yes" : "no");
1502
1503         return *node;
1504 }
1505
1506
1507 void
1508 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1509 {
1510         int pos;
1511         XMLProperty* prop = 0;
1512         char buf[32];
1513         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1514         XMLNode* geometry;
1515         int height;
1516         static int32_t done[3] = { 0, 0, 0 };
1517
1518         height = default_height;
1519
1520         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1521
1522                 if ((prop = geometry->property ("y_size")) == 0) {
1523                         prop = geometry->property ("y-size");
1524                 }
1525                 if (prop) {
1526                         height = atoi (prop->value());
1527                 }
1528         }
1529
1530         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1531
1532                 if (done[0]) {
1533                         return;
1534                 }
1535
1536                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1537                         pos = height / 3;
1538                         snprintf (buf, sizeof(buf), "%d", pos);
1539                 } else {
1540                         pos = atoi (prop->value());
1541                 }
1542
1543                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1544                         rhs_pane1.set_position (pos);
1545                 }
1546
1547         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1548
1549                 if (done[2]) {
1550                         return;
1551                 }
1552
1553                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1554                         pos = 75;
1555                         snprintf (buf, sizeof(buf), "%d", pos);
1556                 } else {
1557                         pos = atoi (prop->value());
1558                 }
1559
1560                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1561                         list_hpane.set_position (pos);
1562                 }
1563         }
1564 }
1565 void
1566 Mixer_UI::scroll_left ()
1567 {
1568         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1569         /* stupid GTK: can't rely on clamping across versions */
1570         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1571 }
1572
1573 void
1574 Mixer_UI::scroll_right ()
1575 {
1576         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1577         /* stupid GTK: can't rely on clamping across versions */
1578         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1579 }
1580
1581 bool
1582 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1583 {
1584         /* focus widget gets first shot, then bindings, otherwise
1585            forward to main window
1586         */
1587
1588         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1589                 return true;
1590         }
1591
1592         KeyboardKey k (ev->state, ev->keyval);
1593
1594         if (bindings.activate (k, Bindings::Press)) {
1595                 return true;
1596         }
1597
1598         return forward_key_press (ev);
1599 }
1600
1601 bool
1602 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1603 {
1604         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1605                 return true;
1606         }
1607
1608         KeyboardKey k (ev->state, ev->keyval);
1609
1610         if (bindings.activate (k, Bindings::Release)) {
1611                 return true;
1612         }
1613
1614         /* don't forward releases */
1615
1616         return true;
1617 }
1618
1619 bool
1620 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1621 {
1622         switch (ev->direction) {
1623         case GDK_SCROLL_LEFT:
1624                 scroll_left ();
1625                 return true;
1626         case GDK_SCROLL_UP:
1627                 if (ev->state & Keyboard::TertiaryModifier) {
1628                         scroll_left ();
1629                         return true;
1630                 }
1631                 return false;
1632
1633         case GDK_SCROLL_RIGHT:
1634                 scroll_right ();
1635                 return true;
1636
1637         case GDK_SCROLL_DOWN:
1638                 if (ev->state & Keyboard::TertiaryModifier) {
1639                         scroll_right ();
1640                         return true;
1641                 }
1642                 return false;
1643         }
1644
1645         return false;
1646 }
1647
1648
1649 void
1650 Mixer_UI::parameter_changed (string const & p)
1651 {
1652         if (p == "show-group-tabs") {
1653                 bool const s = _session->config.get_show_group_tabs ();
1654                 if (s) {
1655                         _group_tabs->show ();
1656                 } else {
1657                         _group_tabs->hide ();
1658                 }
1659         } else if (p == "default-narrow_ms") {
1660                 bool const s = Config->get_default_narrow_ms ();
1661                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1662                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1663                 }
1664         }
1665 }
1666
1667 void
1668 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1669 {
1670         g->set_active (a, this);
1671 }
1672
1673 PluginSelector*
1674 Mixer_UI::plugin_selector()
1675 {
1676 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1677         if (!_plugin_selector)
1678                 _plugin_selector = new PluginSelector (PluginManager::instance());
1679 #endif
1680
1681         return _plugin_selector;
1682 }
1683
1684 void
1685 Mixer_UI::setup_track_display ()
1686 {
1687         track_model = ListStore::create (track_columns);
1688         track_display.set_model (track_model);
1689         track_display.append_column (_("Strips"), track_columns.text);
1690         track_display.append_column (_("Show"), track_columns.visible);
1691         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1692         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1693         track_display.get_column (0)->set_expand(true);
1694         track_display.get_column (1)->set_expand(false);
1695         track_display.set_name (X_("MixerTrackDisplayList"));
1696         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1697         track_display.set_reorderable (true);
1698         track_display.set_headers_visible (true);
1699
1700         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1701         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1702
1703         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1704         track_list_visible_cell->property_activatable() = true;
1705         track_list_visible_cell->property_radio() = false;
1706
1707         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1708
1709         track_display_scroller.add (track_display);
1710         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1711
1712         VBox* v = manage (new VBox);
1713         v->show ();
1714         v->pack_start (track_display_scroller, true, true);
1715
1716         Button* b = manage (new Button);
1717         b->show ();
1718         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1719         w->show ();
1720         b->add (*w);
1721
1722         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1723
1724         v->pack_start (*b, false, false);
1725
1726         track_display_frame.set_name("BaseFrame");
1727         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1728         track_display_frame.add (*v);
1729
1730         track_display_scroller.show();
1731         track_display_frame.show();
1732         track_display.show();
1733 }
1734
1735 void
1736 Mixer_UI::new_track_or_bus ()
1737 {
1738         ARDOUR_UI::instance()->add_route (this);
1739 }
1740
1741
1742 void
1743 Mixer_UI::update_title ()
1744 {
1745         if (_session) {
1746                 string n;
1747
1748                 if (_session->snap_name() != _session->name()) {
1749                         n = _session->snap_name ();
1750                 } else {
1751                         n = _session->name ();
1752                 }
1753
1754                 if (_session->dirty ()) {
1755                         n = "*" + n;
1756                 }
1757
1758                 WindowTitle title (n);
1759                 title += S_("Window|Mixer");
1760                 title += Glib::get_application_name ();
1761                 set_title (title.get_string());
1762
1763         } else {
1764
1765                 WindowTitle title (S_("Window|Mixer"));
1766                 title += Glib::get_application_name ();
1767                 set_title (title.get_string());
1768         }
1769 }
1770
1771 MixerStrip*
1772 Mixer_UI::strip_by_x (int x)
1773 {
1774         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1775                 int x1, x2, y;
1776
1777                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1778                 x2 = x1 + (*i)->get_width();
1779
1780                 if (x >= x1 && x <= x2) {
1781                         return (*i);
1782                 }
1783         }
1784
1785         return 0;
1786 }
1787
1788 void
1789 Mixer_UI::set_route_targets_for_operation ()
1790 {
1791         _route_targets.clear ();
1792
1793         if (!_selection.empty()) {
1794                 _route_targets = _selection.routes;
1795                 return;
1796         }
1797
1798         /* try to get mixer strip at mouse */
1799
1800         int x, y;
1801         get_pointer (x, y);
1802
1803         MixerStrip* ms = strip_by_x (x);
1804
1805         if (ms) {
1806                 _route_targets.insert (ms);
1807         }
1808 }
1809
1810 void
1811 Mixer_UI::monitor_section_going_away ()
1812 {
1813         if (_monitor_section) {
1814                 out_packer.remove (_monitor_section->tearoff());
1815                 _monitor_section->set_session (0);
1816         }
1817 }