gtk2_ardour/mixer_ui.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <algorithm>
  25 #include <map>
  26 #include <sigc++/bind.h>
  27
  28 #include <gtkmm/accelmap.h>
  29
  30 #include "pbd/convert.h"
  31 #include "pbd/unwind.h"
  32
  33 #include <glibmm/threads.h>
  34
  35 #include <gtkmm2ext/gtk_ui.h>
  36 #include <gtkmm2ext/utils.h>
  37 #include <gtkmm2ext/tearoff.h>
  38 #include <gtkmm2ext/window_title.h>
  39
  40 #include "ardour/debug.h"
  41 #include "ardour/midi_track.h"
  42 #include "ardour/plugin_manager.h"
  43 #include "ardour/route_group.h"
  44 #include "ardour/route_sorters.h"
  45 #include "ardour/session.h"
  46
  47 #include "keyboard.h"
  48 #include "mixer_ui.h"
  49 #include "mixer_strip.h"
  50 #include "monitor_section.h"
  51 #include "plugin_selector.h"
  52 #include "public_editor.h"
  53 #include "ardour_ui.h"
  54 #include "prompter.h"
  55 #include "utils.h"
  56 #include "route_sorter.h"
  57 #include "actions.h"
  58 #include "gui_thread.h"
  59 #include "mixer_group_tabs.h"
  60
  61 #include "i18n.h"
  62
  63 using namespace ARDOUR;
  64 using namespace ARDOUR_UI_UTILS;
  65 using namespace PBD;
  66 using namespace Gtk;
  67 using namespace Glib;
  68 using namespace Gtkmm2ext;
  69 using namespace std;
  70
  71 using PBD::atoi;
  72 using PBD::Unwinder;
  73
  74 Mixer_UI* Mixer_UI::_instance = 0;
  75
  76 Mixer_UI*
  77 Mixer_UI::instance ()
  78 {
  79         if (!_instance) {
  80                 _instance  = new Mixer_UI;
  81         }
  82
  83         return _instance;
  84 }
  85
  86 Mixer_UI::Mixer_UI ()
  87         : Window (Gtk::WINDOW_TOPLEVEL)
  88         , VisibilityTracker (*((Gtk::Window*) this))
  89         , _visible (false)
  90         , no_track_list_redisplay (false)
  91         , in_group_row_change (false)
  92         , track_menu (0)
  93         , _monitor_section (0)
  94         , _strip_width (Config->get_default_narrow_ms() ? Narrow : Wide)
  95         , ignore_reorder (false)
  96         , _in_group_rebuild_or_clear (false)
  97         , _route_deletion_in_progress (false)
  98         , _following_editor_selection (false)
  99         , _maximised (false)
 100 {
 101         /* allow this window to become the key focus window */
 102         set_flags (CAN_FOCUS);
 103
 104         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_order_keys, this), gui_context());
 105
 106         scroller.set_can_default (true);
 107         set_default (scroller);
 108
 109         scroller_base.set_flags (Gtk::CAN_FOCUS);
 110         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 111         scroller_base.set_name ("MixerWindow");
 112         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 113         // add as last item of strip packer
 114         strip_packer.pack_end (scroller_base, true, true);
 115
 116         _group_tabs = new MixerGroupTabs (this);
 117         VBox* b = manage (new VBox);
 118         b->pack_start (*_group_tabs, PACK_SHRINK);
 119         b->pack_start (strip_packer);
 120         b->show_all ();
 121
 122         scroller.add (*b);
 123         scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 124
 125         setup_track_display ();
 126
 127         group_model = ListStore::create (group_columns);
 128         group_display.set_model (group_model);
 129         group_display.append_column (_("Group"), group_columns.text);
 130         group_display.append_column (_("Show"), group_columns.visible);
 131         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 132         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 133         group_display.get_column (0)->set_expand(true);
 134         group_display.get_column (1)->set_expand(false);
 135         group_display.set_name ("EditGroupList");
 136         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 137         group_display.set_reorderable (true);
 138         group_display.set_headers_visible (true);
 139         group_display.set_rules_hint (true);
 140
 141         /* name is directly editable */
 142
 143         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 144         name_cell->property_editable() = true;
 145         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 146
 147         /* use checkbox for the active column */
 148
 149         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 150         active_cell->property_activatable() = true;
 151         active_cell->property_radio() = false;
 152
 153         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 154         /* We use this to notice drag-and-drop reorders of the group list */
 155         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 156         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 157
 158         group_display_scroller.add (group_display);
 159         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 160
 161         HBox* route_group_display_button_box = manage (new HBox());
 162
 163         Button* route_group_add_button = manage (new Button ());
 164         Button* route_group_remove_button = manage (new Button ());
 165
 166         Widget* w;
 167
 168         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 169         w->show();
 170         route_group_add_button->add (*w);
 171
 172         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 173         w->show();
 174         route_group_remove_button->add (*w);
 175
 176         route_group_display_button_box->set_homogeneous (true);
 177
 178         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 179         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 180
 181         route_group_display_button_box->add (*route_group_add_button);
 182         route_group_display_button_box->add (*route_group_remove_button);
 183
 184         group_display_vbox.pack_start (group_display_scroller, true, true);
 185         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 186
 187         group_display_frame.set_name ("BaseFrame");
 188         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 189         group_display_frame.add (group_display_vbox);
 190
 191         rhs_pane1.pack1 (track_display_frame);
 192         rhs_pane1.pack2 (group_display_frame);
 193
 194         list_vpacker.pack_start (rhs_pane1, true, true);
 195
 196         global_hpacker.pack_start (scroller, true, true);
 197 #ifdef GTKOSX
 198         /* current gtk-quartz has dirty updates on borders like this one */
 199         global_hpacker.pack_start (out_packer, false, false, 0);
 200 #else
 201         global_hpacker.pack_start (out_packer, false, false, 12);
 202 #endif
 203         list_hpane.pack1(list_vpacker, true, true);
 204         list_hpane.pack2(global_hpacker, true, false);
 205
 206         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 207                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 208         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 209                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 210
 211         global_vpacker.pack_start (list_hpane, true, true);
 212
 213         add (global_vpacker);
 214         set_name ("MixerWindow");
 215
 216         update_title ();
 217
 218         set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
 219
 220         signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
 221         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 222
 223         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 224
 225         route_group_display_button_box->show();
 226         route_group_add_button->show();
 227         route_group_remove_button->show();
 228
 229         global_hpacker.show();
 230         global_vpacker.show();
 231         scroller.show();
 232         scroller_base.show();
 233         scroller_hpacker.show();
 234         mixer_scroller_vpacker.show();
 235         list_vpacker.show();
 236         group_display_button_label.show();
 237         group_display_button.show();
 238         group_display_scroller.show();
 239         group_display_vbox.show();
 240         group_display_frame.show();
 241         rhs_pane1.show();
 242         strip_packer.show();
 243         out_packer.show();
 244         list_hpane.show();
 245         group_display.show();
 246
 247         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 248
 249         MonitorSection::setup_knob_images ();
 250
 251 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 252         _plugin_selector = new PluginSelector (PluginManager::instance ());
 253 #endif
 254 }
 255
 256 Mixer_UI::~Mixer_UI ()
 257 {
 258         if (_monitor_section) {
 259                 delete _monitor_section;
 260         }
 261 }
 262
 263 void
 264 Mixer_UI::track_editor_selection ()
 265 {
 266         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 267 }
 268
 269
 270 void
 271 Mixer_UI::ensure_float (Window& win)
 272 {
 273         win.set_transient_for (*this);
 274 }
 275
 276 void
 277 Mixer_UI::show_window ()
 278 {
 279         present ();
 280         if (!_visible) {
 281                 set_window_pos_and_size ();
 282
 283                 /* show/hide group tabs as required */
 284                 parameter_changed ("show-group-tabs");
 285
 286                 /* now reset each strips width so the right widgets are shown */
 287                 MixerStrip* ms;
 288
 289                 TreeModel::Children rows = track_model->children();
 290                 TreeModel::Children::iterator ri;
 291
 292                 for (ri = rows.begin(); ri != rows.end(); ++ri) {
 293                         ms = (*ri)[track_columns.strip];
 294                         ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 295                         /* Fix visibility of mixer strip stuff */
 296                         ms->parameter_changed (X_("mixer-strip-visibility"));
 297                 }
 298         }
 299
 300         /* force focus into main area */
 301         scroller_base.grab_focus ();
 302
 303         _visible = true;
 304 }
 305
 306 bool
 307 Mixer_UI::hide_window (GdkEventAny *ev)
 308 {
 309         get_window_pos_and_size ();
 310
 311         _visible = false;
 312         return just_hide_it(ev, static_cast<Gtk::Window *>(this));
 313 }
 314
 315
 316 void
 317 Mixer_UI::add_strips (RouteList& routes)
 318 {
 319         bool from_scratch = track_model->children().size() == 0;
 320         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 321
 322         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 323                 boost::shared_ptr<Route> r = (*it)[track_columns.route];
 324
 325                 if (r->order_key() == (routes.front()->order_key() + routes.size())) {
 326                         insert_iter = it;
 327                         break;
 328                 }
 329         }
 330
 331         if(!from_scratch) {
 332                 _selection.clear_routes ();
 333         }
 334
 335         MixerStrip* strip;
 336
 337         try {
 338                 no_track_list_redisplay = true;
 339                 track_display.set_model (Glib::RefPtr<ListStore>());
 340
 341                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 342                         boost::shared_ptr<Route> route = (*x);
 343
 344                         if (route->is_auditioner()) {
 345                                 continue;
 346                         }
 347
 348                         if (route->is_monitor()) {
 349
 350                                 if (!_monitor_section) {
 351                                         _monitor_section = new MonitorSection (_session);
 352
 353                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 354                                         if (mnode) {
 355                                                 _monitor_section->tearoff().set_state (*mnode);
 356                                         }
 357                                 }
 358
 359                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 360                                 _monitor_section->set_session (_session);
 361                                 _monitor_section->tearoff().show_all ();
 362
 363                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 364
 365                                 /* no regular strip shown for control out */
 366
 367                                 continue;
 368                         }
 369
 370                         strip = new MixerStrip (*this, _session, route);
 371                         strips.push_back (strip);
 372
 373                         Config->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 374
 375                         if (strip->width_owner() != strip) {
 376                                 strip->set_width_enum (_strip_width, this);
 377                         }
 378
 379                         show_strip (strip);
 380
 381                         TreeModel::Row row = *(track_model->insert(insert_iter));
 382                         row[track_columns.text] = route->name();
 383                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 384                         row[track_columns.route] = route;
 385                         row[track_columns.strip] = strip;
 386
 387                         if (!from_scratch) {
 388                                 _selection.add (strip);
 389                         }
 390
 391                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 392
 393                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 394                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 395                 }
 396
 397         } catch (...) {
 398         }
 399
 400         no_track_list_redisplay = false;
 401         track_display.set_model (track_model);
 402
 403         sync_order_keys_from_treeview ();
 404         redisplay_track_list ();
 405 }
 406
 407 void
 408 Mixer_UI::remove_strip (MixerStrip* strip)
 409 {
 410         if (_session && _session->deletion_in_progress()) {
 411                 /* its all being taken care of */
 412                 return;
 413         }
 414
 415         TreeModel::Children rows = track_model->children();
 416         TreeModel::Children::iterator ri;
 417         list<MixerStrip *>::iterator i;
 418
 419         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 420                 strips.erase (i);
 421         }
 422
 423         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 424                 if ((*ri)[track_columns.strip] == strip) {
 425                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 426                         track_model->erase (ri);
 427                         break;
 428                 }
 429         }
 430 }
 431
 432 void
 433 Mixer_UI::reset_remote_control_ids ()
 434 {
 435         if (Config->get_remote_model() == UserOrdered || !_session || _session->deletion_in_progress()) {
 436                 return;
 437         }
 438
 439         TreeModel::Children rows = track_model->children();
 440
 441         if (rows.empty()) {
 442                 return;
 443         }
 444
 445         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 446
 447         TreeModel::Children::iterator ri;
 448         bool rid_change = false;
 449         uint32_t rid = 1;
 450         uint32_t invisible_key = UINT32_MAX;
 451
 452         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 453                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 454                 bool visible = (*ri)[track_columns.visible];
 455
 456                 if (!route->is_master() && !route->is_monitor()) {
 457
 458                         uint32_t new_rid = (visible ? rid : invisible_key--);
 459
 460                         if (new_rid != route->remote_control_id()) {
 461                                 route->set_remote_control_id_explicit (new_rid);
 462                                 rid_change = true;
 463                         }
 464
 465                         if (visible) {
 466                                 rid++;
 467                         }
 468                 }
 469         }
 470
 471         if (rid_change) {
 472                 /* tell the world that we changed the remote control IDs */
 473                 _session->notify_remote_id_change ();
 474         }
 475 }
 476
 477 void
 478 Mixer_UI::sync_order_keys_from_treeview ()
 479 {
 480         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 481                 return;
 482         }
 483
 484         TreeModel::Children rows = track_model->children();
 485
 486         if (rows.empty()) {
 487                 return;
 488         }
 489
 490         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 491
 492         TreeModel::Children::iterator ri;
 493         bool changed = false;
 494         bool rid_change = false;
 495         uint32_t order = 0;
 496         uint32_t rid = 1;
 497         uint32_t invisible_key = UINT32_MAX;
 498
 499         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 500                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 501                 bool visible = (*ri)[track_columns.visible];
 502
 503                 uint32_t old_key = route->order_key ();
 504
 505                 if (order != old_key) {
 506                         route->set_order_key (order);
 507                         changed = true;
 508                 }
 509
 510                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 511
 512                         uint32_t new_rid = (visible ? rid : invisible_key--);
 513
 514                         if (new_rid != route->remote_control_id()) {
 515                                 route->set_remote_control_id_explicit (new_rid);
 516                                 rid_change = true;
 517                         }
 518
 519                         if (visible) {
 520                                 rid++;
 521                         }
 522
 523                 }
 524
 525                 ++order;
 526         }
 527
 528         if (changed) {
 529                 /* tell everyone that we changed the mixer sort keys */
 530                 _session->sync_order_keys ();
 531         }
 532
 533         if (rid_change) {
 534                 /* tell the world that we changed the remote control IDs */
 535                 _session->notify_remote_id_change ();
 536         }
 537 }
 538
 539 void
 540 Mixer_UI::sync_treeview_from_order_keys ()
 541 {
 542         if (!_session || _session->deletion_in_progress()) {
 543                 return;
 544         }
 545
 546         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from order keys.\n");
 547
 548         /* we could get here after either a change in the Mixer or Editor sort
 549          * order, but either way, the mixer order keys reflect the intended
 550          * order for the GUI, so reorder the treeview model to match it.
 551          */
 552
 553         vector<int> neworder;
 554         TreeModel::Children rows = track_model->children();
 555         uint32_t old_order = 0;
 556         bool changed = false;
 557
 558         if (rows.empty()) {
 559                 return;
 560         }
 561
 562         OrderKeySortedRoutes sorted_routes;
 563
 564         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 565                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 566                 sorted_routes.push_back (RoutePlusOrderKey (route, old_order, route->order_key ()));
 567         }
 568
 569         SortByNewDisplayOrder cmp;
 570
 571         sort (sorted_routes.begin(), sorted_routes.end(), cmp);
 572         neworder.assign (sorted_routes.size(), 0);
 573
 574         uint32_t n = 0;
 575
 576         for (OrderKeySortedRoutes::iterator sr = sorted_routes.begin(); sr != sorted_routes.end(); ++sr, ++n) {
 577
 578                 neworder[n] = sr->old_display_order;
 579
 580                 if (sr->old_display_order != n) {
 581                         changed = true;
 582                 }
 583
 584                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order for %1 from %2 to %3\n",
 585                                                                sr->route->name(), sr->old_display_order, n));
 586         }
 587
 588         if (changed) {
 589                 Unwinder<bool> uw (ignore_reorder, true);
 590                 track_model->reorder (neworder);
 591         }
 592
 593         redisplay_track_list ();
 594 }
 595
 596 void
 597 Mixer_UI::follow_editor_selection ()
 598 {
 599         if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
 600                 return;
 601         }
 602
 603         _following_editor_selection = true;
 604         _selection.block_routes_changed (true);
 605
 606         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 607
 608         _selection.clear_routes ();
 609
 610         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 611                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 612                 if (rtav) {
 613                         MixerStrip* ms = strip_by_route (rtav->route());
 614                         if (ms) {
 615                                 _selection.add (ms);
 616                         }
 617                 }
 618         }
 619
 620         _following_editor_selection = false;
 621         _selection.block_routes_changed (false);
 622 }
 623
 624
 625 MixerStrip*
 626 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 627 {
 628         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 629                 if ((*i)->route() == r) {
 630                         return (*i);
 631                 }
 632         }
 633
 634         return 0;
 635 }
 636
 637 bool
 638 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 639 {
 640         if (ev->button == 1) {
 641                 if (_selection.selected (strip)) {
 642                         /* primary-click: toggle selection state of strip */
 643                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 644                                 _selection.remove (strip);
 645                         }
 646                 } else {
 647                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 648                                 _selection.add (strip);
 649                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 650
 651                                 if (!_selection.selected(strip)) {
 652
 653                                         /* extend selection */
 654
 655                                         vector<MixerStrip*> tmp;
 656                                         bool accumulate = false;
 657
 658                                         tmp.push_back (strip);
 659
 660                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 661                                                 if ((*i) == strip) {
 662                                                         /* hit clicked strip, start accumulating till we hit the first
 663                                                            selected strip
 664                                                         */
 665                                                         if (accumulate) {
 666                                                                 /* done */
 667                                                                 break;
 668                                                         } else {
 669                                                                 accumulate = true;
 670                                                         }
 671                                                 } else if (_selection.selected (*i)) {
 672                                                         /* hit selected strip. if currently accumulating others,
 673                                                            we're done. if not accumulating others, start doing so.
 674                                                         */
 675                                                         if (accumulate) {
 676                                                                 /* done */
 677                                                                 break;
 678                                                         } else {
 679                                                                 accumulate = true;
 680                                                         }
 681                                                 } else {
 682                                                         if (accumulate) {
 683                                                                 tmp.push_back (*i);
 684                                                         }
 685                                                 }
 686                                         }
 687
 688                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 689                                                 _selection.add (*i);
 690                                         }
 691                                 }
 692
 693                         } else {
 694                                 _selection.set (strip);
 695                         }
 696                 }
 697         }
 698
 699         return true;
 700 }
 701
 702 void
 703 Mixer_UI::set_session (Session* sess)
 704 {
 705         SessionHandlePtr::set_session (sess);
 706
 707         if (_plugin_selector) {
 708                 _plugin_selector->set_session (_session);
 709         }
 710
 711         _group_tabs->set_session (sess);
 712
 713         if (!_session) {
 714                 return;
 715         }
 716
 717         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 718         set_state (*node);
 719
 720         update_title ();
 721
 722         initial_track_display ();
 723
 724         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 725         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 726         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 727         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 728         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 729         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 730         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 731
 732         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 733
 734         route_groups_changed ();
 735
 736         if (_visible) {
 737                 show_window();
 738
 739                 /* Bit of a hack; if we're here, we're opening the mixer because of our
 740                    instant XML state having a show-mixer property.  Fix up the corresponding
 741                    action state.
 742                 */
 743                 ActionManager::check_toggleaction ("<Actions>/Common/toggle-mixer");
 744         }
 745
 746         start_updating ();
 747 }
 748
 749 void
 750 Mixer_UI::session_going_away ()
 751 {
 752         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 753
 754         _in_group_rebuild_or_clear = true;
 755         group_model->clear ();
 756         _in_group_rebuild_or_clear = false;
 757
 758         _selection.clear ();
 759         track_model->clear ();
 760
 761         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 762                 delete (*i);
 763         }
 764
 765         if (_monitor_section) {
 766                 _monitor_section->tearoff().hide_visible ();
 767         }
 768
 769         strips.clear ();
 770
 771         stop_updating ();
 772
 773         SessionHandlePtr::session_going_away ();
 774
 775         _session = 0;
 776         update_title ();
 777 }
 778
 779 void
 780 Mixer_UI::track_visibility_changed (std::string const & path)
 781 {
 782         if (_session && _session->deletion_in_progress()) {
 783                 return;
 784         }
 785
 786         TreeIter iter;
 787
 788         if ((iter = track_model->get_iter (path))) {
 789                 MixerStrip* strip = (*iter)[track_columns.strip];
 790                 if (strip) {
 791                         bool visible = (*iter)[track_columns.visible];
 792
 793                         if (strip->set_marked_for_display (!visible)) {
 794                                 update_track_visibility ();
 795                         }
 796                 }
 797         }
 798 }
 799
 800 void
 801 Mixer_UI::update_track_visibility ()
 802 {
 803         TreeModel::Children rows = track_model->children();
 804         TreeModel::Children::iterator i;
 805
 806         {
 807                 Unwinder<bool> uw (no_track_list_redisplay, true);
 808
 809                 for (i = rows.begin(); i != rows.end(); ++i) {
 810                         MixerStrip *strip = (*i)[track_columns.strip];
 811                         (*i)[track_columns.visible] = strip->marked_for_display ();
 812                 }
 813
 814                 /* force route order keys catch up with visibility changes
 815                  */
 816
 817                 sync_order_keys_from_treeview ();
 818         }
 819
 820         redisplay_track_list ();
 821 }
 822
 823 void
 824 Mixer_UI::show_strip (MixerStrip* ms)
 825 {
 826         TreeModel::Children rows = track_model->children();
 827         TreeModel::Children::iterator i;
 828
 829         for (i = rows.begin(); i != rows.end(); ++i) {
 830
 831                 MixerStrip* strip = (*i)[track_columns.strip];
 832                 if (strip == ms) {
 833                         (*i)[track_columns.visible] = true;
 834                         redisplay_track_list ();
 835                         break;
 836                 }
 837         }
 838 }
 839
 840 void
 841 Mixer_UI::hide_strip (MixerStrip* ms)
 842 {
 843         TreeModel::Children rows = track_model->children();
 844         TreeModel::Children::iterator i;
 845
 846         for (i = rows.begin(); i != rows.end(); ++i) {
 847
 848                 MixerStrip* strip = (*i)[track_columns.strip];
 849                 if (strip == ms) {
 850                         (*i)[track_columns.visible] = false;
 851                         redisplay_track_list ();
 852                         break;
 853                 }
 854         }
 855 }
 856
 857 gint
 858 Mixer_UI::start_updating ()
 859 {
 860     fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 861     return 0;
 862 }
 863
 864 gint
 865 Mixer_UI::stop_updating ()
 866 {
 867     fast_screen_update_connection.disconnect();
 868     return 0;
 869 }
 870
 871 void
 872 Mixer_UI::fast_update_strips ()
 873 {
 874         if (is_mapped () && _session) {
 875                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 876                         (*i)->fast_update ();
 877                 }
 878         }
 879 }
 880
 881 void
 882 Mixer_UI::set_all_strips_visibility (bool yn)
 883 {
 884         TreeModel::Children rows = track_model->children();
 885         TreeModel::Children::iterator i;
 886
 887         {
 888                 Unwinder<bool> uw (no_track_list_redisplay, true);
 889
 890                 for (i = rows.begin(); i != rows.end(); ++i) {
 891
 892                         TreeModel::Row row = (*i);
 893                         MixerStrip* strip = row[track_columns.strip];
 894
 895                         if (strip == 0) {
 896                                 continue;
 897                         }
 898
 899                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 900                                 continue;
 901                         }
 902
 903                         (*i)[track_columns.visible] = yn;
 904                 }
 905         }
 906
 907         redisplay_track_list ();
 908 }
 909
 910
 911 void
 912 Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
 913 {
 914         TreeModel::Children rows = track_model->children();
 915         TreeModel::Children::iterator i;
 916
 917         {
 918                 Unwinder<bool> uw (no_track_list_redisplay, true);
 919
 920                 for (i = rows.begin(); i != rows.end(); ++i) {
 921                         TreeModel::Row row = (*i);
 922                         MixerStrip* strip = row[track_columns.strip];
 923
 924                         if (strip == 0) {
 925                                 continue;
 926                         }
 927
 928                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 929                                 continue;
 930                         }
 931
 932                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
 933
 934                         switch (tracks) {
 935                         case 0:
 936                                 (*i)[track_columns.visible] = yn;
 937                                 break;
 938
 939                         case 1:
 940                                 if (at) { /* track */
 941                                         (*i)[track_columns.visible] = yn;
 942                                 }
 943                                 break;
 944
 945                         case 2:
 946                                 if (!at) { /* bus */
 947                                         (*i)[track_columns.visible] = yn;
 948                                 }
 949                                 break;
 950                         }
 951                 }
 952         }
 953
 954         redisplay_track_list ();
 955 }
 956
 957 void
 958 Mixer_UI::hide_all_routes ()
 959 {
 960         set_all_strips_visibility (false);
 961 }
 962
 963 void
 964 Mixer_UI::show_all_routes ()
 965 {
 966         set_all_strips_visibility (true);
 967 }
 968
 969 void
 970 Mixer_UI::show_all_audiobus ()
 971 {
 972         set_all_audio_visibility (2, true);
 973 }
 974 void
 975 Mixer_UI::hide_all_audiobus ()
 976 {
 977         set_all_audio_visibility (2, false);
 978 }
 979
 980 void
 981 Mixer_UI::show_all_audiotracks()
 982 {
 983         set_all_audio_visibility (1, true);
 984 }
 985 void
 986 Mixer_UI::hide_all_audiotracks ()
 987 {
 988         set_all_audio_visibility (1, false);
 989 }
 990
 991 void
 992 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
 993 {
 994         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
 995         sync_order_keys_from_treeview ();
 996 }
 997
 998 void
 999 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1000 {
1001         /* this happens as the second step of a DnD within the treeview as well
1002            as when a row/route is actually deleted.
1003
1004            if it was a deletion then we have to force a redisplay because
1005            order keys may not have changed.
1006         */
1007
1008         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1009         sync_order_keys_from_treeview ();
1010
1011         if (_route_deletion_in_progress) {
1012                 redisplay_track_list ();
1013         }
1014 }
1015
1016 void
1017 Mixer_UI::redisplay_track_list ()
1018 {
1019         TreeModel::Children rows = track_model->children();
1020         TreeModel::Children::iterator i;
1021
1022         if (no_track_list_redisplay) {
1023                 return;
1024         }
1025
1026         for (i = rows.begin(); i != rows.end(); ++i) {
1027
1028                 MixerStrip* strip = (*i)[track_columns.strip];
1029
1030                 if (strip == 0) {
1031                         /* we're in the middle of changing a row, don't worry */
1032                         continue;
1033                 }
1034
1035                 bool const visible = (*i)[track_columns.visible];
1036
1037                 if (visible) {
1038                         strip->set_gui_property ("visible", true);
1039
1040                         if (strip->packed()) {
1041
1042                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1043                                         out_packer.reorder_child (*strip, -1);
1044
1045                                 } else {
1046                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1047                                 }
1048
1049                         } else {
1050
1051                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1052                                         out_packer.pack_start (*strip, false, false);
1053                                 } else {
1054                                         strip_packer.pack_start (*strip, false, false);
1055                                 }
1056                                 strip->set_packed (true);
1057                         }
1058
1059                 } else {
1060
1061                         strip->set_gui_property ("visible", false);
1062
1063                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1064                                 /* do nothing, these cannot be hidden */
1065                         } else {
1066                                 if (strip->packed()) {
1067                                         strip_packer.remove (*strip);
1068                                         strip->set_packed (false);
1069                                 }
1070                         }
1071                 }
1072         }
1073
1074         _group_tabs->set_dirty ();
1075 }
1076
1077 void
1078 Mixer_UI::strip_width_changed ()
1079 {
1080         _group_tabs->set_dirty ();
1081
1082 #ifdef GTKOSX
1083         TreeModel::Children rows = track_model->children();
1084         TreeModel::Children::iterator i;
1085         long order;
1086
1087         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1088                 MixerStrip* strip = (*i)[track_columns.strip];
1089
1090                 if (strip == 0) {
1091                         continue;
1092                 }
1093
1094                 bool visible = (*i)[track_columns.visible];
1095
1096                 if (visible) {
1097                         strip->queue_draw();
1098                 }
1099         }
1100 #endif
1101
1102 }
1103
1104 void
1105 Mixer_UI::initial_track_display ()
1106 {
1107         boost::shared_ptr<RouteList> routes = _session->get_routes();
1108         RouteList copy (*routes);
1109         ARDOUR::SignalOrderRouteSorter sorter;
1110
1111         copy.sort (sorter);
1112
1113         {
1114                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1115                 Unwinder<bool> uw2 (ignore_reorder, true);
1116
1117                 track_model->clear ();
1118                 add_strips (copy);
1119         }
1120
1121         _session->sync_order_keys ();
1122
1123         redisplay_track_list ();
1124 }
1125
1126 void
1127 Mixer_UI::show_track_list_menu ()
1128 {
1129         if (track_menu == 0) {
1130                 build_track_menu ();
1131         }
1132
1133         track_menu->popup (1, gtk_get_current_event_time());
1134 }
1135
1136 bool
1137 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1138 {
1139         if (Keyboard::is_context_menu_event (ev)) {
1140                 show_track_list_menu ();
1141                 return true;
1142         }
1143
1144         return false;
1145 }
1146
1147 void
1148 Mixer_UI::build_track_menu ()
1149 {
1150         using namespace Menu_Helpers;
1151         using namespace Gtk;
1152
1153         track_menu = new Menu;
1154         track_menu->set_name ("ArdourContextMenu");
1155         MenuList& items = track_menu->items();
1156
1157         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1158         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1159         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1160         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1161         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1162         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1163
1164 }
1165
1166 void
1167 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1168 {
1169         if (!what_changed.contains (ARDOUR::Properties::name)) {
1170                 return;
1171         }
1172
1173         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1174
1175         TreeModel::Children rows = track_model->children();
1176         TreeModel::Children::iterator i;
1177
1178         for (i = rows.begin(); i != rows.end(); ++i) {
1179                 if ((*i)[track_columns.strip] == mx) {
1180                         (*i)[track_columns.text] = mx->route()->name();
1181                         return;
1182                 }
1183         }
1184
1185         error << _("track display list item for renamed strip not found!") << endmsg;
1186 }
1187
1188 bool
1189 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1190 {
1191         TreeModel::Path path;
1192         TreeViewColumn* column;
1193         int cellx;
1194         int celly;
1195
1196         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1197                 return false;
1198         }
1199
1200         TreeIter iter = group_model->get_iter (path);
1201         if (!iter) {
1202                 return false;
1203         }
1204
1205         RouteGroup* group = (*iter)[group_columns.group];
1206
1207         if (Keyboard::is_context_menu_event (ev)) {
1208                 _group_tabs->get_menu(group)->popup (1, ev->time);
1209                 return true;
1210         }
1211
1212         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1213         case 0:
1214                 if (Keyboard::is_edit_event (ev)) {
1215                         if (group) {
1216                                 // edit_route_group (group);
1217 #ifdef GTKOSX
1218                                 group_display.queue_draw();
1219 #endif
1220                                 return true;
1221                         }
1222                 }
1223                 break;
1224
1225         case 1:
1226         {
1227                 bool visible = (*iter)[group_columns.visible];
1228                 (*iter)[group_columns.visible] = !visible;
1229 #ifdef GTKOSX
1230                 group_display.queue_draw();
1231 #endif
1232                 return true;
1233         }
1234
1235         default:
1236                 break;
1237         }
1238
1239         return false;
1240  }
1241
1242 void
1243 Mixer_UI::activate_all_route_groups ()
1244 {
1245         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1246 }
1247
1248 void
1249 Mixer_UI::disable_all_route_groups ()
1250 {
1251         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1252 }
1253
1254 void
1255 Mixer_UI::route_groups_changed ()
1256 {
1257         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1258
1259         _in_group_rebuild_or_clear = true;
1260
1261         /* just rebuild the while thing */
1262
1263         group_model->clear ();
1264
1265         {
1266                 TreeModel::Row row;
1267                 row = *(group_model->append());
1268                 row[group_columns.visible] = true;
1269                 row[group_columns.text] = (_("-all-"));
1270                 row[group_columns.group] = 0;
1271         }
1272
1273         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1274
1275         _group_tabs->set_dirty ();
1276         _in_group_rebuild_or_clear = false;
1277 }
1278
1279 void
1280 Mixer_UI::new_route_group ()
1281 {
1282         RouteList rl;
1283
1284         _group_tabs->run_new_group_dialog (rl);
1285 }
1286
1287 void
1288 Mixer_UI::remove_selected_route_group ()
1289 {
1290         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1291         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1292
1293         if (rows.empty()) {
1294                 return;
1295         }
1296
1297         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1298         TreeIter iter;
1299
1300         /* selection mode is single, so rows.begin() is it */
1301
1302         if ((iter = group_model->get_iter (*i))) {
1303
1304                 RouteGroup* rg = (*iter)[group_columns.group];
1305
1306                 if (rg) {
1307                         _session->remove_route_group (*rg);
1308                 }
1309         }
1310 }
1311
1312 void
1313 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1314 {
1315         if (in_group_row_change) {
1316                 return;
1317         }
1318
1319         /* force an update of any mixer strips that are using this group,
1320            otherwise mix group names don't change in mixer strips
1321         */
1322
1323         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1324                 if ((*i)->route_group() == group) {
1325                         (*i)->route_group_changed();
1326                 }
1327         }
1328
1329         TreeModel::iterator i;
1330         TreeModel::Children rows = group_model->children();
1331         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1332
1333         in_group_row_change = true;
1334
1335         for (i = rows.begin(); i != rows.end(); ++i) {
1336                 if ((*i)[group_columns.group] == group) {
1337                         (*i)[group_columns.visible] = !group->is_hidden ();
1338                         (*i)[group_columns.text] = group->name ();
1339                         break;
1340                 }
1341         }
1342
1343         in_group_row_change = false;
1344
1345         if (change.contains (Properties::name)) {
1346                 _group_tabs->set_dirty ();
1347         }
1348
1349         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1350                 if ((*j)->route_group() == group) {
1351                         if (group->is_hidden ()) {
1352                                 hide_strip (*j);
1353                         } else {
1354                                 show_strip (*j);
1355                         }
1356                 }
1357         }
1358 }
1359
1360 void
1361 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1362 {
1363         RouteGroup* group;
1364         TreeIter iter;
1365
1366         if ((iter = group_model->get_iter (path))) {
1367
1368                 if ((group = (*iter)[group_columns.group]) == 0) {
1369                         return;
1370                 }
1371
1372                 if (new_text != group->name()) {
1373                         group->set_name (new_text);
1374                 }
1375         }
1376 }
1377
1378 void
1379 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1380 {
1381         RouteGroup* group;
1382
1383         if (in_group_row_change) {
1384                 return;
1385         }
1386
1387         if ((group = (*iter)[group_columns.group]) == 0) {
1388                 return;
1389         }
1390
1391         std::string name = (*iter)[group_columns.text];
1392
1393         if (name != group->name()) {
1394                 group->set_name (name);
1395         }
1396
1397         bool hidden = !(*iter)[group_columns.visible];
1398
1399         if (hidden != group->is_hidden ()) {
1400                 group->set_hidden (hidden, this);
1401         }
1402 }
1403
1404 /** Called when a group model row is deleted, but also when the model is
1405  *  reordered by a user drag-and-drop; the latter is what we are
1406  *  interested in here.
1407  */
1408 void
1409 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1410 {
1411         if (_in_group_rebuild_or_clear) {
1412                 return;
1413         }
1414
1415         /* Re-write the session's route group list so that the new order is preserved */
1416
1417         list<RouteGroup*> new_list;
1418
1419         Gtk::TreeModel::Children children = group_model->children();
1420         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1421                 RouteGroup* g = (*i)[group_columns.group];
1422                 if (g) {
1423                         new_list.push_back (g);
1424                 }
1425         }
1426
1427         _session->reorder_route_groups (new_list);
1428 }
1429
1430
1431 void
1432 Mixer_UI::add_route_group (RouteGroup* group)
1433 {
1434         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1435         bool focus = false;
1436
1437         in_group_row_change = true;
1438
1439         TreeModel::Row row = *(group_model->append());
1440         row[group_columns.visible] = !group->is_hidden ();
1441         row[group_columns.group] = group;
1442         if (!group->name().empty()) {
1443                 row[group_columns.text] = group->name();
1444         } else {
1445                 row[group_columns.text] = _("unnamed");
1446                 focus = true;
1447         }
1448
1449         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1450
1451         if (focus) {
1452                 TreeViewColumn* col = group_display.get_column (0);
1453                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1454                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1455         }
1456
1457         _group_tabs->set_dirty ();
1458
1459         in_group_row_change = false;
1460 }
1461
1462 bool
1463 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1464 {
1465         using namespace Menu_Helpers;
1466
1467         if (Keyboard::is_context_menu_event (ev)) {
1468                 ARDOUR_UI::instance()->add_route (this);
1469                 return true;
1470         }
1471
1472         return false;
1473 }
1474
1475 void
1476 Mixer_UI::set_strip_width (Width w, bool save)
1477 {
1478         _strip_width = w;
1479
1480         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1481                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1482         }
1483 }
1484
1485 void
1486 Mixer_UI::set_window_pos_and_size ()
1487 {
1488         resize (m_width, m_height);
1489         move (m_root_x, m_root_y);
1490 }
1491
1492         void
1493 Mixer_UI::get_window_pos_and_size ()
1494 {
1495         get_position(m_root_x, m_root_y);
1496         get_size(m_width, m_height);
1497 }
1498
1499 int
1500 Mixer_UI::set_state (const XMLNode& node)
1501 {
1502         const XMLProperty* prop;
1503         XMLNode* geometry;
1504
1505         m_width = default_width;
1506         m_height = default_height;
1507         m_root_x = 1;
1508         m_root_y = 1;
1509
1510         if ((geometry = find_named_node (node, "geometry")) != 0) {
1511
1512                 XMLProperty* prop;
1513
1514                 if ((prop = geometry->property("x_size")) == 0) {
1515                         prop = geometry->property ("x-size");
1516                 }
1517                 if (prop) {
1518                         m_width = atoi(prop->value());
1519                 }
1520                 if ((prop = geometry->property("y_size")) == 0) {
1521                         prop = geometry->property ("y-size");
1522                 }
1523                 if (prop) {
1524                         m_height = atoi(prop->value());
1525                 }
1526
1527                 if ((prop = geometry->property ("x_pos")) == 0) {
1528                         prop = geometry->property ("x-pos");
1529                 }
1530                 if (prop) {
1531                         m_root_x = atoi (prop->value());
1532
1533                 }
1534                 if ((prop = geometry->property ("y_pos")) == 0) {
1535                         prop = geometry->property ("y-pos");
1536                 }
1537                 if (prop) {
1538                         m_root_y = atoi (prop->value());
1539                 }
1540         }
1541
1542         set_window_pos_and_size ();
1543
1544         if ((prop = node.property ("narrow-strips"))) {
1545                 if (string_is_affirmative (prop->value())) {
1546                         set_strip_width (Narrow);
1547                 } else {
1548                         set_strip_width (Wide);
1549                 }
1550         }
1551
1552         if ((prop = node.property ("show-mixer"))) {
1553                 if (string_is_affirmative (prop->value())) {
1554                        _visible = true;
1555                 }
1556         }
1557
1558         if ((prop = node.property ("maximised"))) {
1559                 bool yn = string_is_affirmative (prop->value());
1560                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
1561                 assert (act);
1562                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1563                 bool fs = tact && tact->get_active();
1564                 if (yn ^ fs) {
1565                         ActionManager::do_action ("Common",
1566                                         "ToggleMaximalMixer");
1567                 }
1568         }
1569
1570
1571         return 0;
1572 }
1573
1574 XMLNode&
1575 Mixer_UI::get_state (void)
1576 {
1577         XMLNode* node = new XMLNode ("Mixer");
1578
1579         if (is_realized()) {
1580                 Glib::RefPtr<Gdk::Window> win = get_window();
1581
1582                 get_window_pos_and_size ();
1583
1584                 XMLNode* geometry = new XMLNode ("geometry");
1585                 char buf[32];
1586                 snprintf(buf, sizeof(buf), "%d", m_width);
1587                 geometry->add_property(X_("x_size"), string(buf));
1588                 snprintf(buf, sizeof(buf), "%d", m_height);
1589                 geometry->add_property(X_("y_size"), string(buf));
1590                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1591                 geometry->add_property(X_("x_pos"), string(buf));
1592                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1593                 geometry->add_property(X_("y_pos"), string(buf));
1594
1595                 // written only for compatibility, they are not used.
1596                 snprintf(buf, sizeof(buf), "%d", 0);
1597                 geometry->add_property(X_("x_off"), string(buf));
1598                 snprintf(buf, sizeof(buf), "%d", 0);
1599                 geometry->add_property(X_("y_off"), string(buf));
1600
1601                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1602                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1603                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1604                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1605
1606                 node->add_child_nocopy (*geometry);
1607         }
1608
1609         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1610
1611         node->add_property ("show-mixer", _visible ? "yes" : "no");
1612
1613         node->add_property ("maximised", _maximised ? "yes" : "no");
1614
1615         return *node;
1616 }
1617
1618
1619 void
1620 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1621 {
1622         int pos;
1623         XMLProperty* prop = 0;
1624         char buf[32];
1625         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1626         XMLNode* geometry;
1627         int height;
1628         static int32_t done[3] = { 0, 0, 0 };
1629
1630         height = default_height;
1631
1632         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1633
1634                 if ((prop = geometry->property ("y_size")) == 0) {
1635                         prop = geometry->property ("y-size");
1636                 }
1637                 if (prop) {
1638                         height = atoi (prop->value());
1639                 }
1640         }
1641
1642         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1643
1644                 if (done[0]) {
1645                         return;
1646                 }
1647
1648                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1649                         pos = height / 3;
1650                         snprintf (buf, sizeof(buf), "%d", pos);
1651                 } else {
1652                         pos = atoi (prop->value());
1653                 }
1654
1655                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1656                         rhs_pane1.set_position (pos);
1657                 }
1658
1659         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1660
1661                 if (done[2]) {
1662                         return;
1663                 }
1664
1665                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1666                         pos = 75;
1667                         snprintf (buf, sizeof(buf), "%d", pos);
1668                 } else {
1669                         pos = atoi (prop->value());
1670                 }
1671
1672                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1673                         list_hpane.set_position (pos);
1674                 }
1675         }
1676 }
1677 void
1678 Mixer_UI::scroll_left ()
1679 {
1680         if (!scroller.get_hscrollbar()) return;
1681         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1682         /* stupid GTK: can't rely on clamping across versions */
1683         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1684 }
1685
1686 void
1687 Mixer_UI::scroll_right ()
1688 {
1689         if (!scroller.get_hscrollbar()) return;
1690         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1691         /* stupid GTK: can't rely on clamping across versions */
1692         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1693 }
1694
1695 bool
1696 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1697 {
1698         /* focus widget gets first shot, then bindings, otherwise
1699            forward to main window
1700         */
1701
1702         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1703                 return true;
1704         }
1705
1706         KeyboardKey k (ev->state, ev->keyval);
1707
1708         if (bindings.activate (k, Bindings::Press)) {
1709                 return true;
1710         }
1711
1712         return forward_key_press (ev);
1713 }
1714
1715 bool
1716 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1717 {
1718         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1719                 return true;
1720         }
1721
1722         KeyboardKey k (ev->state, ev->keyval);
1723
1724         if (bindings.activate (k, Bindings::Release)) {
1725                 return true;
1726         }
1727
1728         /* don't forward releases */
1729
1730         return true;
1731 }
1732
1733 bool
1734 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1735 {
1736         switch (ev->direction) {
1737         case GDK_SCROLL_LEFT:
1738                 scroll_left ();
1739                 return true;
1740         case GDK_SCROLL_UP:
1741                 if (ev->state & Keyboard::TertiaryModifier) {
1742                         scroll_left ();
1743                         return true;
1744                 }
1745                 return false;
1746
1747         case GDK_SCROLL_RIGHT:
1748                 scroll_right ();
1749                 return true;
1750
1751         case GDK_SCROLL_DOWN:
1752                 if (ev->state & Keyboard::TertiaryModifier) {
1753                         scroll_right ();
1754                         return true;
1755                 }
1756                 return false;
1757         }
1758
1759         return false;
1760 }
1761
1762
1763 void
1764 Mixer_UI::parameter_changed (string const & p)
1765 {
1766         if (p == "show-group-tabs") {
1767                 bool const s = _session->config.get_show_group_tabs ();
1768                 if (s) {
1769                         _group_tabs->show ();
1770                 } else {
1771                         _group_tabs->hide ();
1772                 }
1773         } else if (p == "default-narrow_ms") {
1774                 bool const s = Config->get_default_narrow_ms ();
1775                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1776                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1777                 }
1778         } else if (p == "remote-model") {
1779                 reset_remote_control_ids ();
1780         }
1781 }
1782
1783 void
1784 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1785 {
1786         g->set_active (a, this);
1787 }
1788
1789 PluginSelector*
1790 Mixer_UI::plugin_selector()
1791 {
1792 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1793         if (!_plugin_selector)
1794                 _plugin_selector = new PluginSelector (PluginManager::instance());
1795 #endif
1796
1797         return _plugin_selector;
1798 }
1799
1800 void
1801 Mixer_UI::setup_track_display ()
1802 {
1803         track_model = ListStore::create (track_columns);
1804         track_display.set_model (track_model);
1805         track_display.append_column (_("Strips"), track_columns.text);
1806         track_display.append_column (_("Show"), track_columns.visible);
1807         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1808         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1809         track_display.get_column (0)->set_expand(true);
1810         track_display.get_column (1)->set_expand(false);
1811         track_display.set_name (X_("EditGroupList"));
1812         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1813         track_display.set_reorderable (true);
1814         track_display.set_headers_visible (true);
1815
1816         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1817         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1818
1819         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1820         track_list_visible_cell->property_activatable() = true;
1821         track_list_visible_cell->property_radio() = false;
1822         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
1823
1824         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1825
1826         track_display_scroller.add (track_display);
1827         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1828
1829         VBox* v = manage (new VBox);
1830         v->show ();
1831         v->pack_start (track_display_scroller, true, true);
1832
1833         Button* b = manage (new Button);
1834         b->show ();
1835         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1836         w->show ();
1837         b->add (*w);
1838
1839         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1840
1841         v->pack_start (*b, false, false);
1842
1843         track_display_frame.set_name("BaseFrame");
1844         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1845         track_display_frame.add (*v);
1846
1847         track_display_scroller.show();
1848         track_display_frame.show();
1849         track_display.show();
1850 }
1851
1852 void
1853 Mixer_UI::new_track_or_bus ()
1854 {
1855         ARDOUR_UI::instance()->add_route (this);
1856 }
1857
1858
1859 void
1860 Mixer_UI::update_title ()
1861 {
1862         if (_session) {
1863                 string n;
1864
1865                 if (_session->snap_name() != _session->name()) {
1866                         n = _session->snap_name ();
1867                 } else {
1868                         n = _session->name ();
1869                 }
1870
1871                 if (_session->dirty ()) {
1872                         n = "*" + n;
1873                 }
1874
1875                 WindowTitle title (n);
1876                 title += S_("Window|Mixer");
1877                 title += Glib::get_application_name ();
1878                 set_title (title.get_string());
1879
1880         } else {
1881
1882                 WindowTitle title (S_("Window|Mixer"));
1883                 title += Glib::get_application_name ();
1884                 set_title (title.get_string());
1885         }
1886 }
1887
1888 MixerStrip*
1889 Mixer_UI::strip_by_x (int x)
1890 {
1891         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1892                 int x1, x2, y;
1893
1894                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1895                 x2 = x1 + (*i)->get_width();
1896
1897                 if (x >= x1 && x <= x2) {
1898                         return (*i);
1899                 }
1900         }
1901
1902         return 0;
1903 }
1904
1905 void
1906 Mixer_UI::set_route_targets_for_operation ()
1907 {
1908         _route_targets.clear ();
1909
1910         if (!_selection.empty()) {
1911                 _route_targets = _selection.routes;
1912                 return;
1913         }
1914
1915         /* nothing selected ... try to get mixer strip at mouse */
1916
1917         int x, y;
1918         get_pointer (x, y);
1919
1920         MixerStrip* ms = strip_by_x (x);
1921
1922         if (ms) {
1923                 _route_targets.insert (ms);
1924         }
1925 }
1926
1927 void
1928 Mixer_UI::monitor_section_going_away ()
1929 {
1930         if (_monitor_section) {
1931                 out_packer.remove (_monitor_section->tearoff());
1932                 _monitor_section->set_session (0);
1933         }
1934 }
1935
1936 void
1937 Mixer_UI::toggle_midi_input_active (bool flip_others)
1938 {
1939         boost::shared_ptr<RouteList> rl (new RouteList);
1940         bool onoff = false;
1941
1942         set_route_targets_for_operation ();
1943
1944         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
1945                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
1946
1947                 if (mt) {
1948                         rl->push_back ((*r)->route());
1949                         onoff = !mt->input_active();
1950                 }
1951         }
1952
1953         _session->set_exclusive_input_active (rl, onoff, flip_others);
1954 }
1955
1956 void
1957 Mixer_UI::maximise_mixer_space ()
1958 {
1959         if (_maximised) {
1960                 return;
1961         }
1962
1963         fullscreen ();
1964
1965         _maximised = true;
1966 }
1967
1968 void
1969 Mixer_UI::restore_mixer_space ()
1970 {
1971         if (!_maximised) {
1972                 return;
1973         }
1974
1975         unfullscreen();
1976
1977         _maximised = false;
1978 }