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 #include "timers.h"
  61
  62 #include "i18n.h"
  63
  64 using namespace ARDOUR;
  65 using namespace ARDOUR_UI_UTILS;
  66 using namespace PBD;
  67 using namespace Gtk;
  68 using namespace Glib;
  69 using namespace Gtkmm2ext;
  70 using namespace std;
  71
  72 using PBD::atoi;
  73 using PBD::Unwinder;
  74
  75 Mixer_UI* Mixer_UI::_instance = 0;
  76
  77 Mixer_UI*
  78 Mixer_UI::instance ()
  79 {
  80         if (!_instance) {
  81                 _instance  = new Mixer_UI;
  82         }
  83
  84         return _instance;
  85 }
  86
  87 Mixer_UI::Mixer_UI ()
  88         : Window (Gtk::WINDOW_TOPLEVEL)
  89         , VisibilityTracker (*((Gtk::Window*) this))
  90         , _visible (false)
  91         , no_track_list_redisplay (false)
  92         , in_group_row_change (false)
  93         , track_menu (0)
  94         , _monitor_section (0)
  95         , _strip_width (ARDOUR_UI::config()->get_default_narrow_ms() ? Narrow : Wide)
  96         , ignore_reorder (false)
  97         , _in_group_rebuild_or_clear (false)
  98         , _route_deletion_in_progress (false)
  99         , _following_editor_selection (false)
 100         , _maximised (false)
 101 {
 102         /* allow this window to become the key focus window */
 103         set_flags (CAN_FOCUS);
 104
 105         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_order_keys, this), gui_context());
 106
 107         scroller.set_can_default (true);
 108         set_default (scroller);
 109
 110         scroller_base.set_flags (Gtk::CAN_FOCUS);
 111         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 112         scroller_base.set_name ("MixerWindow");
 113         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 114         // add as last item of strip packer
 115         strip_packer.pack_end (scroller_base, true, true);
 116
 117         _group_tabs = new MixerGroupTabs (this);
 118         VBox* b = manage (new VBox);
 119         b->pack_start (*_group_tabs, PACK_SHRINK);
 120         b->pack_start (strip_packer);
 121         b->show_all ();
 122
 123         scroller.add (*b);
 124         scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 125
 126         setup_track_display ();
 127
 128         group_model = ListStore::create (group_columns);
 129         group_display.set_model (group_model);
 130         group_display.append_column (_("Group"), group_columns.text);
 131         group_display.append_column (_("Show"), group_columns.visible);
 132         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 133         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 134         group_display.get_column (0)->set_expand(true);
 135         group_display.get_column (1)->set_expand(false);
 136         group_display.set_name ("EditGroupList");
 137         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 138         group_display.set_reorderable (true);
 139         group_display.set_headers_visible (true);
 140         group_display.set_rules_hint (true);
 141
 142         /* name is directly editable */
 143
 144         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 145         name_cell->property_editable() = true;
 146         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 147
 148         /* use checkbox for the active column */
 149
 150         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 151         active_cell->property_activatable() = true;
 152         active_cell->property_radio() = false;
 153
 154         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 155         /* We use this to notice drag-and-drop reorders of the group list */
 156         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 157         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 158
 159         group_display_scroller.add (group_display);
 160         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 161
 162         HBox* route_group_display_button_box = manage (new HBox());
 163
 164         Button* route_group_add_button = manage (new Button ());
 165         Button* route_group_remove_button = manage (new Button ());
 166
 167         Widget* w;
 168
 169         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 170         w->show();
 171         route_group_add_button->add (*w);
 172
 173         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 174         w->show();
 175         route_group_remove_button->add (*w);
 176
 177         route_group_display_button_box->set_homogeneous (true);
 178
 179         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 180         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 181
 182         route_group_display_button_box->add (*route_group_add_button);
 183         route_group_display_button_box->add (*route_group_remove_button);
 184
 185         group_display_vbox.pack_start (group_display_scroller, true, true);
 186         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 187
 188         group_display_frame.set_name ("BaseFrame");
 189         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 190         group_display_frame.add (group_display_vbox);
 191
 192         rhs_pane1.pack1 (track_display_frame);
 193         rhs_pane1.pack2 (group_display_frame);
 194
 195         list_vpacker.pack_start (rhs_pane1, true, true);
 196
 197         global_hpacker.pack_start (scroller, true, true);
 198 #ifdef GTKOSX
 199         /* current gtk-quartz has dirty updates on borders like this one */
 200         global_hpacker.pack_start (out_packer, false, false, 0);
 201 #else
 202         global_hpacker.pack_start (out_packer, false, false, 12);
 203 #endif
 204         list_hpane.pack1(list_vpacker, false, false);
 205         list_hpane.pack2(global_hpacker, true, false);
 206
 207         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 208                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 209         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 210                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 211
 212         global_vpacker.pack_start (list_hpane, true, true);
 213
 214         add (global_vpacker);
 215         set_name ("MixerWindow");
 216
 217         update_title ();
 218
 219         set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
 220
 221         signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
 222         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 223
 224         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 225
 226         route_group_display_button_box->show();
 227         route_group_add_button->show();
 228         route_group_remove_button->show();
 229
 230         global_hpacker.show();
 231         global_vpacker.show();
 232         scroller.show();
 233         scroller_base.show();
 234         scroller_hpacker.show();
 235         mixer_scroller_vpacker.show();
 236         list_vpacker.show();
 237         group_display_button_label.show();
 238         group_display_button.show();
 239         group_display_scroller.show();
 240         group_display_vbox.show();
 241         group_display_frame.show();
 242         rhs_pane1.show();
 243         strip_packer.show();
 244         out_packer.show();
 245         list_hpane.show();
 246         group_display.show();
 247
 248         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 249
 250 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 251         _plugin_selector = new PluginSelector (PluginManager::instance ());
 252 #endif
 253 }
 254
 255 Mixer_UI::~Mixer_UI ()
 256 {
 257         if (_monitor_section) {
 258                 delete _monitor_section;
 259         }
 260 }
 261
 262 void
 263 Mixer_UI::track_editor_selection ()
 264 {
 265         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 266 }
 267
 268
 269 void
 270 Mixer_UI::ensure_float (Window& win)
 271 {
 272         win.set_transient_for (*this);
 273 }
 274
 275 void
 276 Mixer_UI::show_window ()
 277 {
 278         present ();
 279         if (!_visible) {
 280                 set_window_pos_and_size ();
 281
 282                 /* show/hide group tabs as required */
 283                 parameter_changed ("show-group-tabs");
 284
 285                 /* now reset each strips width so the right widgets are shown */
 286                 MixerStrip* ms;
 287
 288                 TreeModel::Children rows = track_model->children();
 289                 TreeModel::Children::iterator ri;
 290
 291                 for (ri = rows.begin(); ri != rows.end(); ++ri) {
 292                         ms = (*ri)[track_columns.strip];
 293                         ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 294                         /* Fix visibility of mixer strip stuff */
 295                         ms->parameter_changed (X_("mixer-element-visibility"));
 296                 }
 297         }
 298
 299         /* force focus into main area */
 300         scroller_base.grab_focus ();
 301
 302         _visible = true;
 303 }
 304
 305 bool
 306 Mixer_UI::hide_window (GdkEventAny *ev)
 307 {
 308         get_window_pos_and_size ();
 309
 310         _visible = false;
 311         return just_hide_it(ev, static_cast<Gtk::Window *>(this));
 312 }
 313
 314
 315 void
 316 Mixer_UI::add_strips (RouteList& routes)
 317 {
 318         bool from_scratch = track_model->children().size() == 0;
 319         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 320
 321         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 322                 boost::shared_ptr<Route> r = (*it)[track_columns.route];
 323
 324                 if (r->order_key() == (routes.front()->order_key() + routes.size())) {
 325                         insert_iter = it;
 326                         break;
 327                 }
 328         }
 329
 330         if(!from_scratch) {
 331                 _selection.clear_routes ();
 332         }
 333
 334         MixerStrip* strip;
 335
 336         try {
 337                 no_track_list_redisplay = true;
 338                 track_display.set_model (Glib::RefPtr<ListStore>());
 339
 340                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 341                         boost::shared_ptr<Route> route = (*x);
 342
 343                         if (route->is_auditioner()) {
 344                                 continue;
 345                         }
 346
 347                         if (route->is_monitor()) {
 348
 349                                 if (!_monitor_section) {
 350                                         _monitor_section = new MonitorSection (_session);
 351
 352                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 353                                         if (mnode) {
 354                                                 _monitor_section->tearoff().set_state (*mnode);
 355                                         }
 356                                 }
 357
 358                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 359                                 _monitor_section->set_session (_session);
 360                                 _monitor_section->tearoff().show_all ();
 361
 362                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 363
 364                                 /* no regular strip shown for control out */
 365
 366                                 continue;
 367                         }
 368
 369                         strip = new MixerStrip (*this, _session, route);
 370                         strips.push_back (strip);
 371
 372                         ARDOUR_UI::config()->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 373
 374                         if (strip->width_owner() != strip) {
 375                                 strip->set_width_enum (_strip_width, this);
 376                         }
 377
 378                         show_strip (strip);
 379
 380                         TreeModel::Row row = *(track_model->insert(insert_iter));
 381                         row[track_columns.text] = route->name();
 382                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 383                         row[track_columns.route] = route;
 384                         row[track_columns.strip] = strip;
 385
 386                         if (!from_scratch) {
 387                                 _selection.add (strip);
 388                         }
 389
 390                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 391
 392                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 393                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 394                 }
 395
 396         } catch (...) {
 397         }
 398
 399         no_track_list_redisplay = false;
 400         track_display.set_model (track_model);
 401
 402         sync_order_keys_from_treeview ();
 403         redisplay_track_list ();
 404 }
 405
 406 void
 407 Mixer_UI::deselect_all_strip_processors ()
 408 {
 409         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 410                 (*i)->deselect_all_processors();
 411         }
 412 }
 413
 414 void
 415 Mixer_UI::select_none ()
 416 {
 417         _selection.clear_routes();
 418         deselect_all_strip_processors();
 419 }
 420
 421 void
 422 Mixer_UI::delete_processors ()
 423 {
 424         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 425                 (*i)->delete_processors();
 426         }
 427 }
 428
 429
 430 void
 431 Mixer_UI::remove_strip (MixerStrip* strip)
 432 {
 433         if (_session && _session->deletion_in_progress()) {
 434                 /* its all being taken care of */
 435                 return;
 436         }
 437
 438         TreeModel::Children rows = track_model->children();
 439         TreeModel::Children::iterator ri;
 440         list<MixerStrip *>::iterator i;
 441
 442         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 443                 strips.erase (i);
 444         }
 445
 446         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 447                 if ((*ri)[track_columns.strip] == strip) {
 448                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 449                         track_model->erase (ri);
 450                         break;
 451                 }
 452         }
 453 }
 454
 455 void
 456 Mixer_UI::reset_remote_control_ids ()
 457 {
 458         if (Config->get_remote_model() == UserOrdered || !_session || _session->deletion_in_progress()) {
 459                 return;
 460         }
 461
 462         TreeModel::Children rows = track_model->children();
 463
 464         if (rows.empty()) {
 465                 return;
 466         }
 467
 468         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 469
 470         TreeModel::Children::iterator ri;
 471         bool rid_change = false;
 472         uint32_t rid = 1;
 473         uint32_t invisible_key = UINT32_MAX;
 474
 475         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 476
 477                 /* skip two special values */
 478
 479                 if (rid == Route::MasterBusRemoteControlID) {
 480                         rid++;
 481                 }
 482
 483                 if (rid == Route::MonitorBusRemoteControlID) {
 484                         rid++;
 485                 }
 486
 487                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 488                 bool visible = (*ri)[track_columns.visible];
 489
 490                 if (!route->is_master() && !route->is_monitor()) {
 491
 492                         uint32_t new_rid = (visible ? rid : invisible_key--);
 493
 494                         if (new_rid != route->remote_control_id()) {
 495                                 route->set_remote_control_id_explicit (new_rid);
 496                                 rid_change = true;
 497                         }
 498
 499                         if (visible) {
 500                                 rid++;
 501                         }
 502                 }
 503         }
 504
 505         if (rid_change) {
 506                 /* tell the world that we changed the remote control IDs */
 507                 _session->notify_remote_id_change ();
 508         }
 509 }
 510
 511 void
 512 Mixer_UI::sync_order_keys_from_treeview ()
 513 {
 514         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 515                 return;
 516         }
 517
 518         TreeModel::Children rows = track_model->children();
 519
 520         if (rows.empty()) {
 521                 return;
 522         }
 523
 524         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 525
 526         TreeModel::Children::iterator ri;
 527         bool changed = false;
 528         bool rid_change = false;
 529         uint32_t order = 0;
 530         uint32_t rid = 1;
 531         uint32_t invisible_key = UINT32_MAX;
 532
 533         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 534                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 535                 bool visible = (*ri)[track_columns.visible];
 536
 537                 uint32_t old_key = route->order_key ();
 538
 539                 if (order != old_key) {
 540                         route->set_order_key (order);
 541                         changed = true;
 542                 }
 543
 544                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 545
 546                         uint32_t new_rid = (visible ? rid : invisible_key--);
 547
 548                         if (new_rid != route->remote_control_id()) {
 549                                 route->set_remote_control_id_explicit (new_rid);
 550                                 rid_change = true;
 551                         }
 552
 553                         if (visible) {
 554                                 rid++;
 555                         }
 556
 557                 }
 558
 559                 ++order;
 560         }
 561
 562         if (changed) {
 563                 /* tell everyone that we changed the mixer sort keys */
 564                 _session->sync_order_keys ();
 565         }
 566
 567         if (rid_change) {
 568                 /* tell the world that we changed the remote control IDs */
 569                 _session->notify_remote_id_change ();
 570         }
 571 }
 572
 573 void
 574 Mixer_UI::sync_treeview_from_order_keys ()
 575 {
 576         if (!_session || _session->deletion_in_progress()) {
 577                 return;
 578         }
 579
 580         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from order keys.\n");
 581
 582         /* we could get here after either a change in the Mixer or Editor sort
 583          * order, but either way, the mixer order keys reflect the intended
 584          * order for the GUI, so reorder the treeview model to match it.
 585          */
 586
 587         vector<int> neworder;
 588         TreeModel::Children rows = track_model->children();
 589         uint32_t old_order = 0;
 590         bool changed = false;
 591
 592         if (rows.empty()) {
 593                 return;
 594         }
 595
 596         OrderKeySortedRoutes sorted_routes;
 597
 598         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 599                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 600                 sorted_routes.push_back (RoutePlusOrderKey (route, old_order, route->order_key ()));
 601         }
 602
 603         SortByNewDisplayOrder cmp;
 604
 605         sort (sorted_routes.begin(), sorted_routes.end(), cmp);
 606         neworder.assign (sorted_routes.size(), 0);
 607
 608         uint32_t n = 0;
 609
 610         for (OrderKeySortedRoutes::iterator sr = sorted_routes.begin(); sr != sorted_routes.end(); ++sr, ++n) {
 611
 612                 neworder[n] = sr->old_display_order;
 613
 614                 if (sr->old_display_order != n) {
 615                         changed = true;
 616                 }
 617
 618                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order for %1 from %2 to %3\n",
 619                                                                sr->route->name(), sr->old_display_order, n));
 620         }
 621
 622         if (changed) {
 623                 Unwinder<bool> uw (ignore_reorder, true);
 624                 track_model->reorder (neworder);
 625         }
 626
 627         redisplay_track_list ();
 628 }
 629
 630 void
 631 Mixer_UI::follow_editor_selection ()
 632 {
 633         if (_following_editor_selection) {
 634                 return;
 635         }
 636
 637         _following_editor_selection = true;
 638         _selection.block_routes_changed (true);
 639
 640         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 641
 642         _selection.clear_routes ();
 643
 644         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 645                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 646                 if (rtav) {
 647                         MixerStrip* ms = strip_by_route (rtav->route());
 648                         if (ms) {
 649                                 _selection.add (ms);
 650                         }
 651                 }
 652         }
 653
 654         _following_editor_selection = false;
 655         _selection.block_routes_changed (false);
 656 }
 657
 658
 659 MixerStrip*
 660 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 661 {
 662         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 663                 if ((*i)->route() == r) {
 664                         return (*i);
 665                 }
 666         }
 667
 668         return 0;
 669 }
 670
 671 bool
 672 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 673 {
 674         if (ev->button == 1) {
 675                 if (_selection.selected (strip)) {
 676                         /* primary-click: toggle selection state of strip */
 677                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 678                                 _selection.remove (strip);
 679                         } else if (_selection.routes.size() > 1) {
 680                                 /* de-select others */
 681                                 _selection.set (strip);
 682                         }
 683                 } else {
 684                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 685                                 _selection.add (strip);
 686                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 687
 688                                 if (!_selection.selected(strip)) {
 689
 690                                         /* extend selection */
 691
 692                                         vector<MixerStrip*> tmp;
 693                                         bool accumulate = false;
 694                                         bool found_another = false;
 695
 696                                         tmp.push_back (strip);
 697
 698                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 699                                                 if ((*i) == strip) {
 700                                                         /* hit clicked strip, start accumulating till we hit the first
 701                                                            selected strip
 702                                                         */
 703                                                         if (accumulate) {
 704                                                                 /* done */
 705                                                                 break;
 706                                                         } else {
 707                                                                 accumulate = true;
 708                                                         }
 709                                                 } else if (_selection.selected (*i)) {
 710                                                         /* hit selected strip. if currently accumulating others,
 711                                                            we're done. if not accumulating others, start doing so.
 712                                                         */
 713                                                         found_another = true;
 714                                                         if (accumulate) {
 715                                                                 /* done */
 716                                                                 break;
 717                                                         } else {
 718                                                                 accumulate = true;
 719                                                         }
 720                                                 } else {
 721                                                         if (accumulate) {
 722                                                                 tmp.push_back (*i);
 723                                                         }
 724                                                 }
 725                                         }
 726
 727                                         if (found_another) {
 728                                                 for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 729                                                         _selection.add (*i);
 730                                                 }
 731                                         } else
 732                                                 _selection.set (strip);  //user wants to start a range selection, but there aren't any others selected yet
 733                                 }
 734
 735                         } else {
 736                                 _selection.set (strip);
 737                         }
 738                 }
 739         }
 740
 741         return true;
 742 }
 743
 744 void
 745 Mixer_UI::set_session (Session* sess)
 746 {
 747         SessionHandlePtr::set_session (sess);
 748
 749         if (_plugin_selector) {
 750                 _plugin_selector->set_session (_session);
 751         }
 752
 753         _group_tabs->set_session (sess);
 754
 755         if (!_session) {
 756                 return;
 757         }
 758
 759         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 760         set_state (*node);
 761
 762         update_title ();
 763
 764         initial_track_display ();
 765
 766         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 767         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 768         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 769         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 770         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 771         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 772         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 773
 774         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 775
 776         route_groups_changed ();
 777
 778         if (_visible) {
 779                 show_window();
 780         }
 781
 782         start_updating ();
 783 }
 784
 785 void
 786 Mixer_UI::session_going_away ()
 787 {
 788         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 789
 790         _in_group_rebuild_or_clear = true;
 791         group_model->clear ();
 792         _in_group_rebuild_or_clear = false;
 793
 794         _selection.clear ();
 795         track_model->clear ();
 796
 797         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 798                 delete (*i);
 799         }
 800
 801         if (_monitor_section) {
 802                 _monitor_section->tearoff().hide_visible ();
 803         }
 804
 805         strips.clear ();
 806
 807         stop_updating ();
 808
 809         SessionHandlePtr::session_going_away ();
 810
 811         _session = 0;
 812         update_title ();
 813 }
 814
 815 void
 816 Mixer_UI::track_visibility_changed (std::string const & path)
 817 {
 818         if (_session && _session->deletion_in_progress()) {
 819                 return;
 820         }
 821
 822         TreeIter iter;
 823
 824         if ((iter = track_model->get_iter (path))) {
 825                 MixerStrip* strip = (*iter)[track_columns.strip];
 826                 if (strip) {
 827                         bool visible = (*iter)[track_columns.visible];
 828
 829                         if (strip->set_marked_for_display (!visible)) {
 830                                 update_track_visibility ();
 831                         }
 832                 }
 833         }
 834 }
 835
 836 void
 837 Mixer_UI::update_track_visibility ()
 838 {
 839         TreeModel::Children rows = track_model->children();
 840         TreeModel::Children::iterator i;
 841
 842         {
 843                 Unwinder<bool> uw (no_track_list_redisplay, true);
 844
 845                 for (i = rows.begin(); i != rows.end(); ++i) {
 846                         MixerStrip *strip = (*i)[track_columns.strip];
 847                         (*i)[track_columns.visible] = strip->marked_for_display ();
 848                 }
 849
 850                 /* force route order keys catch up with visibility changes
 851                  */
 852
 853                 sync_order_keys_from_treeview ();
 854         }
 855
 856         redisplay_track_list ();
 857 }
 858
 859 void
 860 Mixer_UI::show_strip (MixerStrip* ms)
 861 {
 862         TreeModel::Children rows = track_model->children();
 863         TreeModel::Children::iterator i;
 864
 865         for (i = rows.begin(); i != rows.end(); ++i) {
 866
 867                 MixerStrip* strip = (*i)[track_columns.strip];
 868                 if (strip == ms) {
 869                         (*i)[track_columns.visible] = true;
 870                         redisplay_track_list ();
 871                         break;
 872                 }
 873         }
 874 }
 875
 876 void
 877 Mixer_UI::hide_strip (MixerStrip* ms)
 878 {
 879         TreeModel::Children rows = track_model->children();
 880         TreeModel::Children::iterator i;
 881
 882         for (i = rows.begin(); i != rows.end(); ++i) {
 883
 884                 MixerStrip* strip = (*i)[track_columns.strip];
 885                 if (strip == ms) {
 886                         (*i)[track_columns.visible] = false;
 887                         redisplay_track_list ();
 888                         break;
 889                 }
 890         }
 891 }
 892
 893 gint
 894 Mixer_UI::start_updating ()
 895 {
 896     fast_screen_update_connection = Timers::super_rapid_connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 897     return 0;
 898 }
 899
 900 gint
 901 Mixer_UI::stop_updating ()
 902 {
 903     fast_screen_update_connection.disconnect();
 904     return 0;
 905 }
 906
 907 void
 908 Mixer_UI::fast_update_strips ()
 909 {
 910         if (is_mapped () && _session) {
 911                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 912                         (*i)->fast_update ();
 913                 }
 914         }
 915 }
 916
 917 void
 918 Mixer_UI::set_all_strips_visibility (bool yn)
 919 {
 920         TreeModel::Children rows = track_model->children();
 921         TreeModel::Children::iterator i;
 922
 923         {
 924                 Unwinder<bool> uw (no_track_list_redisplay, true);
 925
 926                 for (i = rows.begin(); i != rows.end(); ++i) {
 927
 928                         TreeModel::Row row = (*i);
 929                         MixerStrip* strip = row[track_columns.strip];
 930
 931                         if (strip == 0) {
 932                                 continue;
 933                         }
 934
 935                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 936                                 continue;
 937                         }
 938
 939                         (*i)[track_columns.visible] = yn;
 940                 }
 941         }
 942
 943         redisplay_track_list ();
 944 }
 945
 946
 947 void
 948 Mixer_UI::set_all_audio_midi_visibility (int tracks, bool yn)
 949 {
 950         TreeModel::Children rows = track_model->children();
 951         TreeModel::Children::iterator i;
 952
 953         {
 954                 Unwinder<bool> uw (no_track_list_redisplay, true);
 955
 956                 for (i = rows.begin(); i != rows.end(); ++i) {
 957                         TreeModel::Row row = (*i);
 958                         MixerStrip* strip = row[track_columns.strip];
 959
 960                         if (strip == 0) {
 961                                 continue;
 962                         }
 963
 964                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 965                                 continue;
 966                         }
 967
 968                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
 969                         boost::shared_ptr<MidiTrack> mt = strip->midi_track();
 970
 971                         switch (tracks) {
 972                         case 0:
 973                                 (*i)[track_columns.visible] = yn;
 974                                 break;
 975
 976                         case 1:
 977                                 if (at) { /* track */
 978                                         (*i)[track_columns.visible] = yn;
 979                                 }
 980                                 break;
 981
 982                         case 2:
 983                                 if (!at && !mt) { /* bus */
 984                                         (*i)[track_columns.visible] = yn;
 985                                 }
 986                                 break;
 987
 988                         case 3:
 989                                 if (mt) { /* midi-track */
 990                                         (*i)[track_columns.visible] = yn;
 991                                 }
 992                                 break;
 993                         }
 994                 }
 995         }
 996
 997         redisplay_track_list ();
 998 }
 999
1000 void
1001 Mixer_UI::hide_all_routes ()
1002 {
1003         set_all_strips_visibility (false);
1004 }
1005
1006 void
1007 Mixer_UI::show_all_routes ()
1008 {
1009         set_all_strips_visibility (true);
1010 }
1011
1012 void
1013 Mixer_UI::show_all_audiobus ()
1014 {
1015         set_all_audio_midi_visibility (2, true);
1016 }
1017 void
1018 Mixer_UI::hide_all_audiobus ()
1019 {
1020         set_all_audio_midi_visibility (2, false);
1021 }
1022
1023 void
1024 Mixer_UI::show_all_audiotracks()
1025 {
1026         set_all_audio_midi_visibility (1, true);
1027 }
1028 void
1029 Mixer_UI::hide_all_audiotracks ()
1030 {
1031         set_all_audio_midi_visibility (1, false);
1032 }
1033
1034 void
1035 Mixer_UI::show_all_miditracks()
1036 {
1037         set_all_audio_midi_visibility (3, true);
1038 }
1039 void
1040 Mixer_UI::hide_all_miditracks ()
1041 {
1042         set_all_audio_midi_visibility (3, false);
1043 }
1044
1045
1046 void
1047 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1048 {
1049         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1050         sync_order_keys_from_treeview ();
1051 }
1052
1053 void
1054 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1055 {
1056         /* this happens as the second step of a DnD within the treeview as well
1057            as when a row/route is actually deleted.
1058
1059            if it was a deletion then we have to force a redisplay because
1060            order keys may not have changed.
1061         */
1062
1063         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1064         sync_order_keys_from_treeview ();
1065
1066         if (_route_deletion_in_progress) {
1067                 redisplay_track_list ();
1068         }
1069 }
1070
1071 void
1072 Mixer_UI::redisplay_track_list ()
1073 {
1074         TreeModel::Children rows = track_model->children();
1075         TreeModel::Children::iterator i;
1076
1077         if (no_track_list_redisplay) {
1078                 return;
1079         }
1080
1081         for (i = rows.begin(); i != rows.end(); ++i) {
1082
1083                 MixerStrip* strip = (*i)[track_columns.strip];
1084
1085                 if (strip == 0) {
1086                         /* we're in the middle of changing a row, don't worry */
1087                         continue;
1088                 }
1089
1090                 bool const visible = (*i)[track_columns.visible];
1091
1092                 if (visible) {
1093                         strip->set_gui_property ("visible", true);
1094
1095                         if (strip->packed()) {
1096
1097                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1098                                         out_packer.reorder_child (*strip, -1);
1099
1100                                 } else {
1101                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1102                                 }
1103
1104                         } else {
1105
1106                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1107                                         out_packer.pack_start (*strip, false, false);
1108                                 } else {
1109                                         strip_packer.pack_start (*strip, false, false);
1110                                 }
1111                                 strip->set_packed (true);
1112                         }
1113
1114                 } else {
1115
1116                         strip->set_gui_property ("visible", false);
1117
1118                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1119                                 /* do nothing, these cannot be hidden */
1120                         } else {
1121                                 if (strip->packed()) {
1122                                         strip_packer.remove (*strip);
1123                                         strip->set_packed (false);
1124                                 }
1125                         }
1126                 }
1127         }
1128
1129         _group_tabs->set_dirty ();
1130 }
1131
1132 void
1133 Mixer_UI::strip_width_changed ()
1134 {
1135         _group_tabs->set_dirty ();
1136
1137 #ifdef GTKOSX
1138         TreeModel::Children rows = track_model->children();
1139         TreeModel::Children::iterator i;
1140         long order;
1141
1142         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1143                 MixerStrip* strip = (*i)[track_columns.strip];
1144
1145                 if (strip == 0) {
1146                         continue;
1147                 }
1148
1149                 bool visible = (*i)[track_columns.visible];
1150
1151                 if (visible) {
1152                         strip->queue_draw();
1153                 }
1154         }
1155 #endif
1156
1157 }
1158
1159 void
1160 Mixer_UI::initial_track_display ()
1161 {
1162         boost::shared_ptr<RouteList> routes = _session->get_routes();
1163         RouteList copy (*routes);
1164         ARDOUR::SignalOrderRouteSorter sorter;
1165
1166         copy.sort (sorter);
1167
1168         {
1169                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1170                 Unwinder<bool> uw2 (ignore_reorder, true);
1171
1172                 track_model->clear ();
1173                 add_strips (copy);
1174         }
1175
1176         _session->sync_order_keys ();
1177
1178         redisplay_track_list ();
1179 }
1180
1181 void
1182 Mixer_UI::show_track_list_menu ()
1183 {
1184         if (track_menu == 0) {
1185                 build_track_menu ();
1186         }
1187
1188         track_menu->popup (1, gtk_get_current_event_time());
1189 }
1190
1191 bool
1192 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1193 {
1194         if (Keyboard::is_context_menu_event (ev)) {
1195                 show_track_list_menu ();
1196                 return true;
1197         }
1198
1199         return false;
1200 }
1201
1202 void
1203 Mixer_UI::build_track_menu ()
1204 {
1205         using namespace Menu_Helpers;
1206         using namespace Gtk;
1207
1208         track_menu = new Menu;
1209         track_menu->set_name ("ArdourContextMenu");
1210         MenuList& items = track_menu->items();
1211
1212         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1213         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1214         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1215         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1216         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1217         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1218         items.push_back (MenuElem (_("Show All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::show_all_miditracks)));
1219         items.push_back (MenuElem (_("Hide All Midi Tracks"), sigc::mem_fun (*this, &Mixer_UI::hide_all_miditracks)));
1220
1221 }
1222
1223 void
1224 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1225 {
1226         if (!what_changed.contains (ARDOUR::Properties::name)) {
1227                 return;
1228         }
1229
1230         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1231
1232         TreeModel::Children rows = track_model->children();
1233         TreeModel::Children::iterator i;
1234
1235         for (i = rows.begin(); i != rows.end(); ++i) {
1236                 if ((*i)[track_columns.strip] == mx) {
1237                         (*i)[track_columns.text] = mx->route()->name();
1238                         return;
1239                 }
1240         }
1241
1242         error << _("track display list item for renamed strip not found!") << endmsg;
1243 }
1244
1245 bool
1246 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1247 {
1248         TreeModel::Path path;
1249         TreeViewColumn* column;
1250         int cellx;
1251         int celly;
1252
1253         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1254                 _group_tabs->get_menu(0)->popup (1, ev->time);
1255                 return true;
1256         }
1257
1258         TreeIter iter = group_model->get_iter (path);
1259         if (!iter) {
1260                 _group_tabs->get_menu(0)->popup (1, ev->time);
1261                 return true;
1262         }
1263
1264         RouteGroup* group = (*iter)[group_columns.group];
1265
1266         if (Keyboard::is_context_menu_event (ev)) {
1267                 _group_tabs->get_menu(group)->popup (1, ev->time);
1268                 return true;
1269         }
1270
1271         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1272         case 0:
1273                 if (Keyboard::is_edit_event (ev)) {
1274                         if (group) {
1275                                 // edit_route_group (group);
1276 #ifdef GTKOSX
1277                                 group_display.queue_draw();
1278 #endif
1279                                 return true;
1280                         }
1281                 }
1282                 break;
1283
1284         case 1:
1285         {
1286                 bool visible = (*iter)[group_columns.visible];
1287                 (*iter)[group_columns.visible] = !visible;
1288 #ifdef GTKOSX
1289                 group_display.queue_draw();
1290 #endif
1291                 return true;
1292         }
1293
1294         default:
1295                 break;
1296         }
1297
1298         return false;
1299  }
1300
1301 void
1302 Mixer_UI::activate_all_route_groups ()
1303 {
1304         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1305 }
1306
1307 void
1308 Mixer_UI::disable_all_route_groups ()
1309 {
1310         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1311 }
1312
1313 void
1314 Mixer_UI::route_groups_changed ()
1315 {
1316         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1317
1318         _in_group_rebuild_or_clear = true;
1319
1320         /* just rebuild the while thing */
1321
1322         group_model->clear ();
1323
1324 #if 0
1325         /* this is currently not used,
1326          * Mixer_UI::group_display_button_press() has a case for it,
1327          * and a commented edit_route_group() but that's n/a since 2011.
1328          *
1329          * This code is left as reminder that
1330          * row[group_columns.group] = 0 has special meaning.
1331          */
1332         {
1333                 TreeModel::Row row;
1334                 row = *(group_model->append());
1335                 row[group_columns.visible] = true;
1336                 row[group_columns.text] = (_("-all-"));
1337                 row[group_columns.group] = 0;
1338         }
1339 #endif
1340
1341         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1342
1343         _group_tabs->set_dirty ();
1344         _in_group_rebuild_or_clear = false;
1345 }
1346
1347 void
1348 Mixer_UI::new_route_group ()
1349 {
1350         RouteList rl;
1351
1352         _group_tabs->run_new_group_dialog (rl);
1353 }
1354
1355 void
1356 Mixer_UI::remove_selected_route_group ()
1357 {
1358         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1359         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1360
1361         if (rows.empty()) {
1362                 return;
1363         }
1364
1365         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1366         TreeIter iter;
1367
1368         /* selection mode is single, so rows.begin() is it */
1369
1370         if ((iter = group_model->get_iter (*i))) {
1371
1372                 RouteGroup* rg = (*iter)[group_columns.group];
1373
1374                 if (rg) {
1375                         _session->remove_route_group (*rg);
1376                 }
1377         }
1378 }
1379
1380 void
1381 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1382 {
1383         if (in_group_row_change) {
1384                 return;
1385         }
1386
1387         /* force an update of any mixer strips that are using this group,
1388            otherwise mix group names don't change in mixer strips
1389         */
1390
1391         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1392                 if ((*i)->route_group() == group) {
1393                         (*i)->route_group_changed();
1394                 }
1395         }
1396
1397         TreeModel::iterator i;
1398         TreeModel::Children rows = group_model->children();
1399         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1400
1401         in_group_row_change = true;
1402
1403         for (i = rows.begin(); i != rows.end(); ++i) {
1404                 if ((*i)[group_columns.group] == group) {
1405                         (*i)[group_columns.visible] = !group->is_hidden ();
1406                         (*i)[group_columns.text] = group->name ();
1407                         break;
1408                 }
1409         }
1410
1411         in_group_row_change = false;
1412
1413         if (change.contains (Properties::name)) {
1414                 _group_tabs->set_dirty ();
1415         }
1416
1417         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1418                 if ((*j)->route_group() == group) {
1419                         if (group->is_hidden ()) {
1420                                 hide_strip (*j);
1421                         } else {
1422                                 show_strip (*j);
1423                         }
1424                 }
1425         }
1426 }
1427
1428 void
1429 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1430 {
1431         RouteGroup* group;
1432         TreeIter iter;
1433
1434         if ((iter = group_model->get_iter (path))) {
1435
1436                 if ((group = (*iter)[group_columns.group]) == 0) {
1437                         return;
1438                 }
1439
1440                 if (new_text != group->name()) {
1441                         group->set_name (new_text);
1442                 }
1443         }
1444 }
1445
1446 void
1447 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1448 {
1449         RouteGroup* group;
1450
1451         if (in_group_row_change) {
1452                 return;
1453         }
1454
1455         if ((group = (*iter)[group_columns.group]) == 0) {
1456                 return;
1457         }
1458
1459         std::string name = (*iter)[group_columns.text];
1460
1461         if (name != group->name()) {
1462                 group->set_name (name);
1463         }
1464
1465         bool hidden = !(*iter)[group_columns.visible];
1466
1467         if (hidden != group->is_hidden ()) {
1468                 group->set_hidden (hidden, this);
1469         }
1470 }
1471
1472 /** Called when a group model row is deleted, but also when the model is
1473  *  reordered by a user drag-and-drop; the latter is what we are
1474  *  interested in here.
1475  */
1476 void
1477 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1478 {
1479         if (_in_group_rebuild_or_clear) {
1480                 return;
1481         }
1482
1483         /* Re-write the session's route group list so that the new order is preserved */
1484
1485         list<RouteGroup*> new_list;
1486
1487         Gtk::TreeModel::Children children = group_model->children();
1488         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1489                 RouteGroup* g = (*i)[group_columns.group];
1490                 if (g) {
1491                         new_list.push_back (g);
1492                 }
1493         }
1494
1495         _session->reorder_route_groups (new_list);
1496 }
1497
1498
1499 void
1500 Mixer_UI::add_route_group (RouteGroup* group)
1501 {
1502         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1503         bool focus = false;
1504
1505         in_group_row_change = true;
1506
1507         TreeModel::Row row = *(group_model->append());
1508         row[group_columns.visible] = !group->is_hidden ();
1509         row[group_columns.group] = group;
1510         if (!group->name().empty()) {
1511                 row[group_columns.text] = group->name();
1512         } else {
1513                 row[group_columns.text] = _("unnamed");
1514                 focus = true;
1515         }
1516
1517         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1518
1519         if (focus) {
1520                 TreeViewColumn* col = group_display.get_column (0);
1521                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1522                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1523         }
1524
1525         _group_tabs->set_dirty ();
1526
1527         in_group_row_change = false;
1528 }
1529
1530 bool
1531 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1532 {
1533         using namespace Menu_Helpers;
1534
1535         if (Keyboard::is_context_menu_event (ev)) {
1536                 ARDOUR_UI::instance()->add_route (this);
1537                 return true;
1538         }
1539
1540         return false;
1541 }
1542
1543 void
1544 Mixer_UI::set_strip_width (Width w, bool save)
1545 {
1546         _strip_width = w;
1547
1548         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1549                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1550         }
1551 }
1552
1553 void
1554 Mixer_UI::set_window_pos_and_size ()
1555 {
1556         resize (m_width, m_height);
1557         move (m_root_x, m_root_y);
1558 }
1559
1560         void
1561 Mixer_UI::get_window_pos_and_size ()
1562 {
1563         get_position(m_root_x, m_root_y);
1564         get_size(m_width, m_height);
1565 }
1566
1567 int
1568 Mixer_UI::set_state (const XMLNode& node)
1569 {
1570         const XMLProperty* prop;
1571         XMLNode* geometry;
1572
1573         m_width = default_width;
1574         m_height = default_height;
1575         m_root_x = 1;
1576         m_root_y = 1;
1577
1578         if ((geometry = find_named_node (node, "geometry")) != 0) {
1579
1580                 XMLProperty* prop;
1581
1582                 if ((prop = geometry->property("x_size")) == 0) {
1583                         prop = geometry->property ("x-size");
1584                 }
1585                 if (prop) {
1586                         m_width = atoi(prop->value());
1587                 }
1588                 if ((prop = geometry->property("y_size")) == 0) {
1589                         prop = geometry->property ("y-size");
1590                 }
1591                 if (prop) {
1592                         m_height = atoi(prop->value());
1593                 }
1594
1595                 if ((prop = geometry->property ("x_pos")) == 0) {
1596                         prop = geometry->property ("x-pos");
1597                 }
1598                 if (prop) {
1599                         m_root_x = atoi (prop->value());
1600
1601                 }
1602                 if ((prop = geometry->property ("y_pos")) == 0) {
1603                         prop = geometry->property ("y-pos");
1604                 }
1605                 if (prop) {
1606                         m_root_y = atoi (prop->value());
1607                 }
1608         }
1609
1610         set_window_pos_and_size ();
1611
1612         if ((prop = node.property ("narrow-strips"))) {
1613                 if (string_is_affirmative (prop->value())) {
1614                         set_strip_width (Narrow);
1615                 } else {
1616                         set_strip_width (Wide);
1617                 }
1618         }
1619
1620         if ((prop = node.property ("show-mixer"))) {
1621                 if (string_is_affirmative (prop->value())) {
1622                        _visible = true;
1623                 }
1624         }
1625
1626         if ((prop = node.property ("maximised"))) {
1627                 bool yn = string_is_affirmative (prop->value());
1628                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
1629                 assert (act);
1630                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1631                 bool fs = tact && tact->get_active();
1632                 if (yn ^ fs) {
1633                         ActionManager::do_action ("Common",
1634                                         "ToggleMaximalMixer");
1635                 }
1636         }
1637
1638
1639         return 0;
1640 }
1641
1642 XMLNode&
1643 Mixer_UI::get_state (void)
1644 {
1645         XMLNode* node = new XMLNode ("Mixer");
1646
1647         if (is_realized()) {
1648                 Glib::RefPtr<Gdk::Window> win = get_window();
1649
1650                 get_window_pos_and_size ();
1651
1652                 XMLNode* geometry = new XMLNode ("geometry");
1653                 char buf[32];
1654                 snprintf(buf, sizeof(buf), "%d", m_width);
1655                 geometry->add_property(X_("x_size"), string(buf));
1656                 snprintf(buf, sizeof(buf), "%d", m_height);
1657                 geometry->add_property(X_("y_size"), string(buf));
1658                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1659                 geometry->add_property(X_("x_pos"), string(buf));
1660                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1661                 geometry->add_property(X_("y_pos"), string(buf));
1662
1663                 // written only for compatibility, they are not used.
1664                 snprintf(buf, sizeof(buf), "%d", 0);
1665                 geometry->add_property(X_("x_off"), string(buf));
1666                 snprintf(buf, sizeof(buf), "%d", 0);
1667                 geometry->add_property(X_("y_off"), string(buf));
1668
1669                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1670                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1671                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1672                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1673
1674                 node->add_child_nocopy (*geometry);
1675         }
1676
1677         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1678
1679         node->add_property ("show-mixer", _visible ? "yes" : "no");
1680
1681         node->add_property ("maximised", _maximised ? "yes" : "no");
1682
1683         return *node;
1684 }
1685
1686
1687 void
1688 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1689 {
1690         int pos;
1691         XMLProperty* prop = 0;
1692         char buf[32];
1693         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1694         XMLNode* geometry;
1695         int height;
1696         static int32_t done[3] = { 0, 0, 0 };
1697
1698         height = default_height;
1699
1700         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1701
1702                 if ((prop = geometry->property ("y_size")) == 0) {
1703                         prop = geometry->property ("y-size");
1704                 }
1705                 if (prop) {
1706                         height = atoi (prop->value());
1707                 }
1708         }
1709
1710         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1711
1712                 if (done[0]) {
1713                         return;
1714                 }
1715
1716                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1717                         pos = height / 3;
1718                         snprintf (buf, sizeof(buf), "%d", pos);
1719                 } else {
1720                         pos = atoi (prop->value());
1721                 }
1722
1723                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1724                         rhs_pane1.set_position (pos);
1725                 }
1726
1727         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1728
1729                 if (done[2]) {
1730                         return;
1731                 }
1732
1733                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1734                         pos = 75;
1735                         snprintf (buf, sizeof(buf), "%d", pos);
1736                 } else {
1737                         pos = atoi (prop->value());
1738                 }
1739
1740                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1741                         list_hpane.set_position (pos);
1742                 }
1743         }
1744 }
1745 void
1746 Mixer_UI::scroll_left ()
1747 {
1748         if (!scroller.get_hscrollbar()) return;
1749         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1750         /* stupid GTK: can't rely on clamping across versions */
1751         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1752 }
1753
1754 void
1755 Mixer_UI::scroll_right ()
1756 {
1757         if (!scroller.get_hscrollbar()) return;
1758         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1759         /* stupid GTK: can't rely on clamping across versions */
1760         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1761 }
1762
1763 bool
1764 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1765 {
1766         /* focus widget gets first shot, then bindings, otherwise
1767            forward to main window
1768         */
1769
1770         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1771                 return true;
1772         }
1773
1774         KeyboardKey k (ev->state, ev->keyval);
1775
1776         if (bindings.activate (k, Bindings::Press)) {
1777                 return true;
1778         }
1779
1780         return forward_key_press (ev);
1781 }
1782
1783 bool
1784 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1785 {
1786         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1787                 return true;
1788         }
1789
1790         KeyboardKey k (ev->state, ev->keyval);
1791
1792         if (bindings.activate (k, Bindings::Release)) {
1793                 return true;
1794         }
1795
1796         /* don't forward releases */
1797
1798         return true;
1799 }
1800
1801 bool
1802 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1803 {
1804         switch (ev->direction) {
1805         case GDK_SCROLL_LEFT:
1806                 scroll_left ();
1807                 return true;
1808         case GDK_SCROLL_UP:
1809                 if (ev->state & Keyboard::TertiaryModifier) {
1810                         scroll_left ();
1811                         return true;
1812                 }
1813                 return false;
1814
1815         case GDK_SCROLL_RIGHT:
1816                 scroll_right ();
1817                 return true;
1818
1819         case GDK_SCROLL_DOWN:
1820                 if (ev->state & Keyboard::TertiaryModifier) {
1821                         scroll_right ();
1822                         return true;
1823                 }
1824                 return false;
1825         }
1826
1827         return false;
1828 }
1829
1830
1831 void
1832 Mixer_UI::parameter_changed (string const & p)
1833 {
1834         if (p == "show-group-tabs") {
1835                 bool const s = _session->config.get_show_group_tabs ();
1836                 if (s) {
1837                         _group_tabs->show ();
1838                 } else {
1839                         _group_tabs->hide ();
1840                 }
1841         } else if (p == "default-narrow_ms") {
1842                 bool const s = ARDOUR_UI::config()->get_default_narrow_ms ();
1843                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1844                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1845                 }
1846         } else if (p == "remote-model") {
1847                 reset_remote_control_ids ();
1848         }
1849 }
1850
1851 void
1852 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1853 {
1854         g->set_active (a, this);
1855 }
1856
1857 PluginSelector*
1858 Mixer_UI::plugin_selector()
1859 {
1860 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1861         if (!_plugin_selector)
1862                 _plugin_selector = new PluginSelector (PluginManager::instance());
1863 #endif
1864
1865         return _plugin_selector;
1866 }
1867
1868 void
1869 Mixer_UI::setup_track_display ()
1870 {
1871         track_model = ListStore::create (track_columns);
1872         track_display.set_model (track_model);
1873         track_display.append_column (_("Strips"), track_columns.text);
1874         track_display.append_column (_("Show"), track_columns.visible);
1875         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1876         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1877         track_display.get_column (0)->set_expand(true);
1878         track_display.get_column (1)->set_expand(false);
1879         track_display.get_column (0)->set_sizing (Gtk::TREE_VIEW_COLUMN_FIXED);
1880         track_display.set_name (X_("EditGroupList"));
1881         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1882         track_display.set_reorderable (true);
1883         track_display.set_headers_visible (true);
1884
1885         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1886         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1887
1888         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1889         track_list_visible_cell->property_activatable() = true;
1890         track_list_visible_cell->property_radio() = false;
1891         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
1892
1893         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1894
1895         track_display_scroller.add (track_display);
1896         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1897
1898         VBox* v = manage (new VBox);
1899         v->show ();
1900         v->pack_start (track_display_scroller, true, true);
1901
1902         Button* b = manage (new Button);
1903         b->show ();
1904         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1905         w->show ();
1906         b->add (*w);
1907
1908         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1909
1910         v->pack_start (*b, false, false);
1911
1912         track_display_frame.set_name("BaseFrame");
1913         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1914         track_display_frame.add (*v);
1915
1916         track_display_scroller.show();
1917         track_display_frame.show();
1918         track_display.show();
1919 }
1920
1921 void
1922 Mixer_UI::new_track_or_bus ()
1923 {
1924         ARDOUR_UI::instance()->add_route (this);
1925 }
1926
1927
1928 void
1929 Mixer_UI::update_title ()
1930 {
1931         if (_session) {
1932                 string n;
1933
1934                 if (_session->snap_name() != _session->name()) {
1935                         n = _session->snap_name ();
1936                 } else {
1937                         n = _session->name ();
1938                 }
1939
1940                 if (_session->dirty ()) {
1941                         n = "*" + n;
1942                 }
1943
1944                 WindowTitle title (n);
1945                 title += S_("Window|Mixer");
1946                 title += Glib::get_application_name ();
1947                 set_title (title.get_string());
1948
1949         } else {
1950
1951                 WindowTitle title (S_("Window|Mixer"));
1952                 title += Glib::get_application_name ();
1953                 set_title (title.get_string());
1954         }
1955 }
1956
1957 MixerStrip*
1958 Mixer_UI::strip_by_x (int x)
1959 {
1960         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1961                 int x1, x2, y;
1962
1963                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1964                 x2 = x1 + (*i)->get_width();
1965
1966                 if (x >= x1 && x <= x2) {
1967                         return (*i);
1968                 }
1969         }
1970
1971         return 0;
1972 }
1973
1974 void
1975 Mixer_UI::set_route_targets_for_operation ()
1976 {
1977         _route_targets.clear ();
1978
1979         if (!_selection.empty()) {
1980                 _route_targets = _selection.routes;
1981                 return;
1982         }
1983
1984 //  removed "implicit" selections of strips, after discussion on IRC
1985
1986 }
1987
1988 void
1989 Mixer_UI::monitor_section_going_away ()
1990 {
1991         if (_monitor_section) {
1992                 out_packer.remove (_monitor_section->tearoff());
1993                 _monitor_section->set_session (0);
1994         }
1995 }
1996
1997 void
1998 Mixer_UI::toggle_midi_input_active (bool flip_others)
1999 {
2000         boost::shared_ptr<RouteList> rl (new RouteList);
2001         bool onoff = false;
2002
2003         set_route_targets_for_operation ();
2004
2005         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
2006                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
2007
2008                 if (mt) {
2009                         rl->push_back ((*r)->route());
2010                         onoff = !mt->input_active();
2011                 }
2012         }
2013
2014         _session->set_exclusive_input_active (rl, onoff, flip_others);
2015 }
2016
2017 void
2018 Mixer_UI::maximise_mixer_space ()
2019 {
2020         if (_maximised) {
2021                 return;
2022         }
2023
2024         fullscreen ();
2025
2026         _maximised = true;
2027 }
2028
2029 void
2030 Mixer_UI::restore_mixer_space ()
2031 {
2032         if (!_maximised) {
2033                 return;
2034         }
2035
2036         unfullscreen();
2037
2038         _maximised = false;
2039 }