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/session.h"
  45
  46 #include "keyboard.h"
  47 #include "mixer_ui.h"
  48 #include "mixer_strip.h"
  49 #include "monitor_section.h"
  50 #include "plugin_selector.h"
  51 #include "public_editor.h"
  52 #include "ardour_ui.h"
  53 #include "prompter.h"
  54 #include "utils.h"
  55 #include "route_sorter.h"
  56 #include "actions.h"
  57 #include "gui_thread.h"
  58 #include "mixer_group_tabs.h"
  59
  60 #include "i18n.h"
  61
  62 using namespace ARDOUR;
  63 using namespace PBD;
  64 using namespace Gtk;
  65 using namespace Glib;
  66 using namespace Gtkmm2ext;
  67 using namespace std;
  68
  69 using PBD::atoi;
  70 using PBD::Unwinder;
  71
  72 Mixer_UI* Mixer_UI::_instance = 0;
  73
  74 Mixer_UI*
  75 Mixer_UI::instance ()
  76 {
  77         if (!_instance) {
  78                 _instance  = new Mixer_UI;
  79         }
  80
  81         return _instance;
  82 }
  83
  84 Mixer_UI::Mixer_UI ()
  85         : Window (Gtk::WINDOW_TOPLEVEL)
  86         , VisibilityTracker (*((Gtk::Window*) this))
  87         , _visible (false)
  88         , no_track_list_redisplay (false)
  89         , in_group_row_change (false)
  90         , track_menu (0)
  91         , _monitor_section (0)
  92         , _strip_width (Config->get_default_narrow_ms() ? Narrow : Wide)
  93         , ignore_reorder (false)
  94         , _in_group_rebuild_or_clear (false)
  95         , _route_deletion_in_progress (false)
  96         , _following_editor_selection (false)
  97         , _maximised (false)
  98 {
  99         /* allow this window to become the key focus window */
 100         set_flags (CAN_FOCUS);
 101
 102         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_order_keys, this), gui_context());
 103
 104         scroller.set_can_default (true);
 105         set_default (scroller);
 106
 107         scroller_base.set_flags (Gtk::CAN_FOCUS);
 108         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 109         scroller_base.set_name ("MixerWindow");
 110         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 111         // add as last item of strip packer
 112         strip_packer.pack_end (scroller_base, true, true);
 113
 114         _group_tabs = new MixerGroupTabs (this);
 115         VBox* b = manage (new VBox);
 116         b->pack_start (*_group_tabs, PACK_SHRINK);
 117         b->pack_start (strip_packer);
 118         b->show_all ();
 119
 120         scroller.add (*b);
 121         scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 122
 123         setup_track_display ();
 124
 125         group_model = ListStore::create (group_columns);
 126         group_display.set_model (group_model);
 127         group_display.append_column (_("Group"), group_columns.text);
 128         group_display.append_column (_("Show"), group_columns.visible);
 129         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 130         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 131         group_display.get_column (0)->set_expand(true);
 132         group_display.get_column (1)->set_expand(false);
 133         group_display.set_name ("EditGroupList");
 134         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 135         group_display.set_reorderable (true);
 136         group_display.set_headers_visible (true);
 137         group_display.set_rules_hint (true);
 138
 139         /* name is directly editable */
 140
 141         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 142         name_cell->property_editable() = true;
 143         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 144
 145         /* use checkbox for the active column */
 146
 147         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 148         active_cell->property_activatable() = true;
 149         active_cell->property_radio() = false;
 150
 151         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 152         /* We use this to notice drag-and-drop reorders of the group list */
 153         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 154         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 155
 156         group_display_scroller.add (group_display);
 157         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 158
 159         HBox* route_group_display_button_box = manage (new HBox());
 160
 161         Button* route_group_add_button = manage (new Button ());
 162         Button* route_group_remove_button = manage (new Button ());
 163
 164         Widget* w;
 165
 166         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 167         w->show();
 168         route_group_add_button->add (*w);
 169
 170         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 171         w->show();
 172         route_group_remove_button->add (*w);
 173
 174         route_group_display_button_box->set_homogeneous (true);
 175
 176         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 177         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 178
 179         route_group_display_button_box->add (*route_group_add_button);
 180         route_group_display_button_box->add (*route_group_remove_button);
 181
 182         group_display_vbox.pack_start (group_display_scroller, true, true);
 183         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 184
 185         group_display_frame.set_name ("BaseFrame");
 186         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 187         group_display_frame.add (group_display_vbox);
 188
 189         rhs_pane1.pack1 (track_display_frame);
 190         rhs_pane1.pack2 (group_display_frame);
 191
 192         list_vpacker.pack_start (rhs_pane1, true, true);
 193
 194         global_hpacker.pack_start (scroller, true, true);
 195 #ifdef GTKOSX
 196         /* current gtk-quartz has dirty updates on borders like this one */
 197         global_hpacker.pack_start (out_packer, false, false, 0);
 198 #else
 199         global_hpacker.pack_start (out_packer, false, false, 12);
 200 #endif
 201         list_hpane.pack1(list_vpacker, true, true);
 202         list_hpane.pack2(global_hpacker, true, false);
 203
 204         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 205                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 206         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 207                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 208
 209         global_vpacker.pack_start (list_hpane, true, true);
 210
 211         add (global_vpacker);
 212         set_name ("MixerWindow");
 213
 214         update_title ();
 215
 216         set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
 217
 218         signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
 219         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 220
 221         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 222
 223         route_group_display_button_box->show();
 224         route_group_add_button->show();
 225         route_group_remove_button->show();
 226
 227         global_hpacker.show();
 228         global_vpacker.show();
 229         scroller.show();
 230         scroller_base.show();
 231         scroller_hpacker.show();
 232         mixer_scroller_vpacker.show();
 233         list_vpacker.show();
 234         group_display_button_label.show();
 235         group_display_button.show();
 236         group_display_scroller.show();
 237         group_display_vbox.show();
 238         group_display_frame.show();
 239         rhs_pane1.show();
 240         strip_packer.show();
 241         out_packer.show();
 242         list_hpane.show();
 243         group_display.show();
 244
 245         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 246
 247         MonitorSection::setup_knob_images ();
 248
 249 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 250         _plugin_selector = new PluginSelector (PluginManager::instance ());
 251 #endif
 252 }
 253
 254 Mixer_UI::~Mixer_UI ()
 255 {
 256         if (_monitor_section) {
 257                 delete _monitor_section;
 258         }
 259 }
 260
 261 void
 262 Mixer_UI::track_editor_selection ()
 263 {
 264         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 265 }
 266
 267
 268 void
 269 Mixer_UI::ensure_float (Window& win)
 270 {
 271         win.set_transient_for (*this);
 272 }
 273
 274 void
 275 Mixer_UI::show_window ()
 276 {
 277         present ();
 278         if (!_visible) {
 279                 set_window_pos_and_size ();
 280
 281                 /* show/hide group tabs as required */
 282                 parameter_changed ("show-group-tabs");
 283
 284                 /* now reset each strips width so the right widgets are shown */
 285                 MixerStrip* ms;
 286
 287                 TreeModel::Children rows = track_model->children();
 288                 TreeModel::Children::iterator ri;
 289
 290                 for (ri = rows.begin(); ri != rows.end(); ++ri) {
 291                         ms = (*ri)[track_columns.strip];
 292                         ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 293                         /* Fix visibility of mixer strip stuff */
 294                         ms->parameter_changed (X_("mixer-strip-visibility"));
 295                 }
 296         }
 297
 298         /* force focus into main area */
 299         scroller_base.grab_focus ();
 300
 301         _visible = true;
 302 }
 303
 304 bool
 305 Mixer_UI::hide_window (GdkEventAny *ev)
 306 {
 307         get_window_pos_and_size ();
 308
 309         _visible = false;
 310         return just_hide_it(ev, static_cast<Gtk::Window *>(this));
 311 }
 312
 313
 314 void
 315 Mixer_UI::add_strips (RouteList& routes)
 316 {
 317         bool from_scratch = track_model->children().size() == 0;
 318         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 319
 320         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 321                 boost::shared_ptr<Route> r = (*it)[track_columns.route];
 322
 323                 if (r->order_key() == (routes.front()->order_key() + routes.size())) {
 324                         insert_iter = it;
 325                         break;
 326                 }
 327         }
 328
 329         if(!from_scratch) {
 330                 _selection.clear_routes ();
 331         }
 332
 333         MixerStrip* strip;
 334
 335         try {
 336                 no_track_list_redisplay = true;
 337                 track_display.set_model (Glib::RefPtr<ListStore>());
 338
 339                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 340                         boost::shared_ptr<Route> route = (*x);
 341
 342                         if (route->is_auditioner()) {
 343                                 continue;
 344                         }
 345
 346                         if (route->is_monitor()) {
 347
 348                                 if (!_monitor_section) {
 349                                         _monitor_section = new MonitorSection (_session);
 350
 351                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 352                                         if (mnode) {
 353                                                 _monitor_section->tearoff().set_state (*mnode);
 354                                         }
 355                                 }
 356
 357                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 358                                 _monitor_section->set_session (_session);
 359                                 _monitor_section->tearoff().show_all ();
 360
 361                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 362
 363                                 /* no regular strip shown for control out */
 364
 365                                 continue;
 366                         }
 367
 368                         strip = new MixerStrip (*this, _session, route);
 369                         strips.push_back (strip);
 370
 371                         Config->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 372
 373                         if (strip->width_owner() != strip) {
 374                                 strip->set_width_enum (_strip_width, this);
 375                         }
 376
 377                         show_strip (strip);
 378
 379                         TreeModel::Row row = *(track_model->insert(insert_iter));
 380                         row[track_columns.text] = route->name();
 381                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 382                         row[track_columns.route] = route;
 383                         row[track_columns.strip] = strip;
 384
 385                         if (!from_scratch) {
 386                                 _selection.add (strip);
 387                         }
 388
 389                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 390
 391                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 392                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 393                 }
 394
 395         } catch (...) {
 396         }
 397
 398         no_track_list_redisplay = false;
 399         track_display.set_model (track_model);
 400
 401         sync_order_keys_from_treeview ();
 402         redisplay_track_list ();
 403 }
 404
 405 void
 406 Mixer_UI::remove_strip (MixerStrip* strip)
 407 {
 408         if (_session && _session->deletion_in_progress()) {
 409                 /* its all being taken care of */
 410                 return;
 411         }
 412
 413         TreeModel::Children rows = track_model->children();
 414         TreeModel::Children::iterator ri;
 415         list<MixerStrip *>::iterator i;
 416
 417         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 418                 strips.erase (i);
 419         }
 420
 421         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 422                 if ((*ri)[track_columns.strip] == strip) {
 423                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 424                         track_model->erase (ri);
 425                         break;
 426                 }
 427         }
 428 }
 429
 430 void
 431 Mixer_UI::reset_remote_control_ids ()
 432 {
 433         if (Config->get_remote_model() == UserOrdered || !_session || _session->deletion_in_progress()) {
 434                 return;
 435         }
 436
 437         TreeModel::Children rows = track_model->children();
 438
 439         if (rows.empty()) {
 440                 return;
 441         }
 442
 443         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 444
 445         TreeModel::Children::iterator ri;
 446         bool rid_change = false;
 447         uint32_t rid = 1;
 448         uint32_t invisible_key = UINT32_MAX;
 449
 450         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 451                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 452                 bool visible = (*ri)[track_columns.visible];
 453
 454                 if (!route->is_master() && !route->is_monitor()) {
 455
 456                         uint32_t new_rid = (visible ? rid : invisible_key--);
 457
 458                         if (new_rid != route->remote_control_id()) {
 459                                 route->set_remote_control_id_explicit (new_rid);
 460                                 rid_change = true;
 461                         }
 462
 463                         if (visible) {
 464                                 rid++;
 465                         }
 466                 }
 467         }
 468
 469         if (rid_change) {
 470                 /* tell the world that we changed the remote control IDs */
 471                 _session->notify_remote_id_change ();
 472         }
 473 }
 474
 475 void
 476 Mixer_UI::sync_order_keys_from_treeview ()
 477 {
 478         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 479                 return;
 480         }
 481
 482         TreeModel::Children rows = track_model->children();
 483
 484         if (rows.empty()) {
 485                 return;
 486         }
 487
 488         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 489
 490         TreeModel::Children::iterator ri;
 491         bool changed = false;
 492         bool rid_change = false;
 493         uint32_t order = 0;
 494         uint32_t rid = 1;
 495         uint32_t invisible_key = UINT32_MAX;
 496
 497         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 498                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 499                 bool visible = (*ri)[track_columns.visible];
 500
 501                 uint32_t old_key = route->order_key ();
 502
 503                 if (order != old_key) {
 504                         route->set_order_key (order);
 505                         changed = true;
 506                 }
 507
 508                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 509
 510                         uint32_t new_rid = (visible ? rid : invisible_key--);
 511
 512                         if (new_rid != route->remote_control_id()) {
 513                                 route->set_remote_control_id_explicit (new_rid);
 514                                 rid_change = true;
 515                         }
 516
 517                         if (visible) {
 518                                 rid++;
 519                         }
 520
 521                 }
 522
 523                 ++order;
 524         }
 525
 526         if (changed) {
 527                 /* tell everyone that we changed the mixer sort keys */
 528                 _session->sync_order_keys ();
 529         }
 530
 531         if (rid_change) {
 532                 /* tell the world that we changed the remote control IDs */
 533                 _session->notify_remote_id_change ();
 534         }
 535 }
 536
 537 void
 538 Mixer_UI::sync_treeview_from_order_keys ()
 539 {
 540         if (!_session || _session->deletion_in_progress()) {
 541                 return;
 542         }
 543
 544         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from order keys.\n");
 545
 546         /* we could get here after either a change in the Mixer or Editor sort
 547          * order, but either way, the mixer order keys reflect the intended
 548          * order for the GUI, so reorder the treeview model to match it.
 549          */
 550
 551         vector<int> neworder;
 552         TreeModel::Children rows = track_model->children();
 553         uint32_t old_order = 0;
 554         bool changed = false;
 555
 556         if (rows.empty()) {
 557                 return;
 558         }
 559
 560         OrderKeySortedRoutes sorted_routes;
 561
 562         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 563                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 564                 sorted_routes.push_back (RoutePlusOrderKey (route, old_order, route->order_key ()));
 565         }
 566
 567         SortByNewDisplayOrder cmp;
 568
 569         sort (sorted_routes.begin(), sorted_routes.end(), cmp);
 570         neworder.assign (sorted_routes.size(), 0);
 571
 572         uint32_t n = 0;
 573
 574         for (OrderKeySortedRoutes::iterator sr = sorted_routes.begin(); sr != sorted_routes.end(); ++sr, ++n) {
 575
 576                 neworder[n] = sr->old_display_order;
 577
 578                 if (sr->old_display_order != n) {
 579                         changed = true;
 580                 }
 581
 582                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order for %1 from %2 to %3\n",
 583                                                                sr->route->name(), sr->old_display_order, n));
 584         }
 585
 586         if (changed) {
 587                 Unwinder<bool> uw (ignore_reorder, true);
 588                 track_model->reorder (neworder);
 589         }
 590
 591         redisplay_track_list ();
 592 }
 593
 594 void
 595 Mixer_UI::follow_editor_selection ()
 596 {
 597         if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
 598                 return;
 599         }
 600
 601         _following_editor_selection = true;
 602         _selection.block_routes_changed (true);
 603
 604         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 605
 606         _selection.clear_routes ();
 607
 608         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 609                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 610                 if (rtav) {
 611                         MixerStrip* ms = strip_by_route (rtav->route());
 612                         if (ms) {
 613                                 _selection.add (ms);
 614                         }
 615                 }
 616         }
 617
 618         _following_editor_selection = false;
 619         _selection.block_routes_changed (false);
 620 }
 621
 622
 623 MixerStrip*
 624 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 625 {
 626         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 627                 if ((*i)->route() == r) {
 628                         return (*i);
 629                 }
 630         }
 631
 632         return 0;
 633 }
 634
 635 bool
 636 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 637 {
 638         if (ev->button == 1) {
 639                 if (_selection.selected (strip)) {
 640                         /* primary-click: toggle selection state of strip */
 641                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 642                                 _selection.remove (strip);
 643                         }
 644                 } else {
 645                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 646                                 _selection.add (strip);
 647                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 648
 649                                 if (!_selection.selected(strip)) {
 650
 651                                         /* extend selection */
 652
 653                                         vector<MixerStrip*> tmp;
 654                                         bool accumulate = false;
 655
 656                                         tmp.push_back (strip);
 657
 658                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 659                                                 if ((*i) == strip) {
 660                                                         /* hit clicked strip, start accumulating till we hit the first
 661                                                            selected strip
 662                                                         */
 663                                                         if (accumulate) {
 664                                                                 /* done */
 665                                                                 break;
 666                                                         } else {
 667                                                                 accumulate = true;
 668                                                         }
 669                                                 } else if (_selection.selected (*i)) {
 670                                                         /* hit selected strip. if currently accumulating others,
 671                                                            we're done. if not accumulating others, start doing so.
 672                                                         */
 673                                                         if (accumulate) {
 674                                                                 /* done */
 675                                                                 break;
 676                                                         } else {
 677                                                                 accumulate = true;
 678                                                         }
 679                                                 } else {
 680                                                         if (accumulate) {
 681                                                                 tmp.push_back (*i);
 682                                                         }
 683                                                 }
 684                                         }
 685
 686                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 687                                                 _selection.add (*i);
 688                                         }
 689                                 }
 690
 691                         } else {
 692                                 _selection.set (strip);
 693                         }
 694                 }
 695         }
 696
 697         return true;
 698 }
 699
 700 void
 701 Mixer_UI::set_session (Session* sess)
 702 {
 703         SessionHandlePtr::set_session (sess);
 704
 705         if (_plugin_selector) {
 706                 _plugin_selector->set_session (_session);
 707         }
 708
 709         _group_tabs->set_session (sess);
 710
 711         if (!_session) {
 712                 return;
 713         }
 714
 715         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 716         set_state (*node);
 717
 718         update_title ();
 719
 720         initial_track_display ();
 721
 722         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 723         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 724         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 725         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 726         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 727         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 728         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 729
 730         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 731
 732         route_groups_changed ();
 733
 734         if (_visible) {
 735                 show_window();
 736
 737                 /* Bit of a hack; if we're here, we're opening the mixer because of our
 738                    instant XML state having a show-mixer property.  Fix up the corresponding
 739                    action state.
 740                 */
 741                 ActionManager::check_toggleaction ("<Actions>/Common/toggle-mixer");
 742         }
 743
 744         start_updating ();
 745 }
 746
 747 void
 748 Mixer_UI::session_going_away ()
 749 {
 750         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 751
 752         _in_group_rebuild_or_clear = true;
 753         group_model->clear ();
 754         _in_group_rebuild_or_clear = false;
 755
 756         _selection.clear ();
 757         track_model->clear ();
 758
 759         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 760                 delete (*i);
 761         }
 762
 763         if (_monitor_section) {
 764                 _monitor_section->tearoff().hide_visible ();
 765         }
 766
 767         strips.clear ();
 768
 769         stop_updating ();
 770
 771         SessionHandlePtr::session_going_away ();
 772
 773         _session = 0;
 774         update_title ();
 775 }
 776
 777 void
 778 Mixer_UI::track_visibility_changed (std::string const & path)
 779 {
 780         if (_session && _session->deletion_in_progress()) {
 781                 return;
 782         }
 783
 784         TreeIter iter;
 785
 786         if ((iter = track_model->get_iter (path))) {
 787                 MixerStrip* strip = (*iter)[track_columns.strip];
 788                 if (strip) {
 789                         bool visible = (*iter)[track_columns.visible];
 790
 791                         if (strip->set_marked_for_display (!visible)) {
 792                                 update_track_visibility ();
 793                         }
 794                 }
 795         }
 796 }
 797
 798 void
 799 Mixer_UI::update_track_visibility ()
 800 {
 801         TreeModel::Children rows = track_model->children();
 802         TreeModel::Children::iterator i;
 803
 804         {
 805                 Unwinder<bool> uw (no_track_list_redisplay, true);
 806
 807                 for (i = rows.begin(); i != rows.end(); ++i) {
 808                         MixerStrip *strip = (*i)[track_columns.strip];
 809                         (*i)[track_columns.visible] = strip->marked_for_display ();
 810                 }
 811
 812                 /* force route order keys catch up with visibility changes
 813                  */
 814
 815                 sync_order_keys_from_treeview ();
 816         }
 817
 818         redisplay_track_list ();
 819 }
 820
 821 void
 822 Mixer_UI::show_strip (MixerStrip* ms)
 823 {
 824         TreeModel::Children rows = track_model->children();
 825         TreeModel::Children::iterator i;
 826
 827         for (i = rows.begin(); i != rows.end(); ++i) {
 828
 829                 MixerStrip* strip = (*i)[track_columns.strip];
 830                 if (strip == ms) {
 831                         (*i)[track_columns.visible] = true;
 832                         redisplay_track_list ();
 833                         break;
 834                 }
 835         }
 836 }
 837
 838 void
 839 Mixer_UI::hide_strip (MixerStrip* ms)
 840 {
 841         TreeModel::Children rows = track_model->children();
 842         TreeModel::Children::iterator i;
 843
 844         for (i = rows.begin(); i != rows.end(); ++i) {
 845
 846                 MixerStrip* strip = (*i)[track_columns.strip];
 847                 if (strip == ms) {
 848                         (*i)[track_columns.visible] = false;
 849                         redisplay_track_list ();
 850                         break;
 851                 }
 852         }
 853 }
 854
 855 gint
 856 Mixer_UI::start_updating ()
 857 {
 858     fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 859     return 0;
 860 }
 861
 862 gint
 863 Mixer_UI::stop_updating ()
 864 {
 865     fast_screen_update_connection.disconnect();
 866     return 0;
 867 }
 868
 869 void
 870 Mixer_UI::fast_update_strips ()
 871 {
 872         if (is_mapped () && _session) {
 873                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 874                         (*i)->fast_update ();
 875                 }
 876         }
 877 }
 878
 879 void
 880 Mixer_UI::set_all_strips_visibility (bool yn)
 881 {
 882         TreeModel::Children rows = track_model->children();
 883         TreeModel::Children::iterator i;
 884
 885         {
 886                 Unwinder<bool> uw (no_track_list_redisplay, true);
 887
 888                 for (i = rows.begin(); i != rows.end(); ++i) {
 889
 890                         TreeModel::Row row = (*i);
 891                         MixerStrip* strip = row[track_columns.strip];
 892
 893                         if (strip == 0) {
 894                                 continue;
 895                         }
 896
 897                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 898                                 continue;
 899                         }
 900
 901                         (*i)[track_columns.visible] = yn;
 902                 }
 903         }
 904
 905         redisplay_track_list ();
 906 }
 907
 908
 909 void
 910 Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
 911 {
 912         TreeModel::Children rows = track_model->children();
 913         TreeModel::Children::iterator i;
 914
 915         {
 916                 Unwinder<bool> uw (no_track_list_redisplay, true);
 917
 918                 for (i = rows.begin(); i != rows.end(); ++i) {
 919                         TreeModel::Row row = (*i);
 920                         MixerStrip* strip = row[track_columns.strip];
 921
 922                         if (strip == 0) {
 923                                 continue;
 924                         }
 925
 926                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 927                                 continue;
 928                         }
 929
 930                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
 931
 932                         switch (tracks) {
 933                         case 0:
 934                                 (*i)[track_columns.visible] = yn;
 935                                 break;
 936
 937                         case 1:
 938                                 if (at) { /* track */
 939                                         (*i)[track_columns.visible] = yn;
 940                                 }
 941                                 break;
 942
 943                         case 2:
 944                                 if (!at) { /* bus */
 945                                         (*i)[track_columns.visible] = yn;
 946                                 }
 947                                 break;
 948                         }
 949                 }
 950         }
 951
 952         redisplay_track_list ();
 953 }
 954
 955 void
 956 Mixer_UI::hide_all_routes ()
 957 {
 958         set_all_strips_visibility (false);
 959 }
 960
 961 void
 962 Mixer_UI::show_all_routes ()
 963 {
 964         set_all_strips_visibility (true);
 965 }
 966
 967 void
 968 Mixer_UI::show_all_audiobus ()
 969 {
 970         set_all_audio_visibility (2, true);
 971 }
 972 void
 973 Mixer_UI::hide_all_audiobus ()
 974 {
 975         set_all_audio_visibility (2, false);
 976 }
 977
 978 void
 979 Mixer_UI::show_all_audiotracks()
 980 {
 981         set_all_audio_visibility (1, true);
 982 }
 983 void
 984 Mixer_UI::hide_all_audiotracks ()
 985 {
 986         set_all_audio_visibility (1, false);
 987 }
 988
 989 void
 990 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
 991 {
 992         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
 993         sync_order_keys_from_treeview ();
 994 }
 995
 996 void
 997 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
 998 {
 999         /* this happens as the second step of a DnD within the treeview as well
1000            as when a row/route is actually deleted.
1001
1002            if it was a deletion then we have to force a redisplay because
1003            order keys may not have changed.
1004         */
1005
1006         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1007         sync_order_keys_from_treeview ();
1008
1009         if (_route_deletion_in_progress) {
1010                 redisplay_track_list ();
1011         }
1012 }
1013
1014 void
1015 Mixer_UI::redisplay_track_list ()
1016 {
1017         TreeModel::Children rows = track_model->children();
1018         TreeModel::Children::iterator i;
1019
1020         if (no_track_list_redisplay) {
1021                 return;
1022         }
1023
1024         for (i = rows.begin(); i != rows.end(); ++i) {
1025
1026                 MixerStrip* strip = (*i)[track_columns.strip];
1027
1028                 if (strip == 0) {
1029                         /* we're in the middle of changing a row, don't worry */
1030                         continue;
1031                 }
1032
1033                 bool const visible = (*i)[track_columns.visible];
1034
1035                 if (visible) {
1036                         strip->set_gui_property ("visible", true);
1037
1038                         if (strip->packed()) {
1039
1040                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1041                                         out_packer.reorder_child (*strip, -1);
1042
1043                                 } else {
1044                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1045                                 }
1046
1047                         } else {
1048
1049                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1050                                         out_packer.pack_start (*strip, false, false);
1051                                 } else {
1052                                         strip_packer.pack_start (*strip, false, false);
1053                                 }
1054                                 strip->set_packed (true);
1055                         }
1056
1057                 } else {
1058
1059                         strip->set_gui_property ("visible", false);
1060
1061                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1062                                 /* do nothing, these cannot be hidden */
1063                         } else {
1064                                 if (strip->packed()) {
1065                                         strip_packer.remove (*strip);
1066                                         strip->set_packed (false);
1067                                 }
1068                         }
1069                 }
1070         }
1071
1072         _group_tabs->set_dirty ();
1073 }
1074
1075 void
1076 Mixer_UI::strip_width_changed ()
1077 {
1078         _group_tabs->set_dirty ();
1079
1080 #ifdef GTKOSX
1081         TreeModel::Children rows = track_model->children();
1082         TreeModel::Children::iterator i;
1083         long order;
1084
1085         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1086                 MixerStrip* strip = (*i)[track_columns.strip];
1087
1088                 if (strip == 0) {
1089                         continue;
1090                 }
1091
1092                 bool visible = (*i)[track_columns.visible];
1093
1094                 if (visible) {
1095                         strip->queue_draw();
1096                 }
1097         }
1098 #endif
1099
1100 }
1101
1102 struct SignalOrderRouteSorter {
1103     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
1104             if (a->is_master() || a->is_monitor()) {
1105                     /* "a" is a special route (master, monitor, etc), and comes
1106                      * last in the mixer ordering
1107                      */
1108                     return false;
1109             } else if (b->is_master() || b->is_monitor()) {
1110                     /* everything comes before b */
1111                     return true;
1112             }
1113             return a->order_key () < b->order_key ();
1114
1115     }
1116 };
1117
1118 void
1119 Mixer_UI::initial_track_display ()
1120 {
1121         boost::shared_ptr<RouteList> routes = _session->get_routes();
1122         RouteList copy (*routes);
1123         SignalOrderRouteSorter sorter;
1124
1125         copy.sort (sorter);
1126
1127         {
1128                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1129                 Unwinder<bool> uw2 (ignore_reorder, true);
1130
1131                 track_model->clear ();
1132                 add_strips (copy);
1133         }
1134
1135         _session->sync_order_keys ();
1136
1137         redisplay_track_list ();
1138 }
1139
1140 void
1141 Mixer_UI::show_track_list_menu ()
1142 {
1143         if (track_menu == 0) {
1144                 build_track_menu ();
1145         }
1146
1147         track_menu->popup (1, gtk_get_current_event_time());
1148 }
1149
1150 bool
1151 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1152 {
1153         if (Keyboard::is_context_menu_event (ev)) {
1154                 show_track_list_menu ();
1155                 return true;
1156         }
1157
1158         return false;
1159 }
1160
1161 void
1162 Mixer_UI::build_track_menu ()
1163 {
1164         using namespace Menu_Helpers;
1165         using namespace Gtk;
1166
1167         track_menu = new Menu;
1168         track_menu->set_name ("ArdourContextMenu");
1169         MenuList& items = track_menu->items();
1170
1171         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1172         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1173         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1174         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1175         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1176         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1177
1178 }
1179
1180 void
1181 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1182 {
1183         if (!what_changed.contains (ARDOUR::Properties::name)) {
1184                 return;
1185         }
1186
1187         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1188
1189         TreeModel::Children rows = track_model->children();
1190         TreeModel::Children::iterator i;
1191
1192         for (i = rows.begin(); i != rows.end(); ++i) {
1193                 if ((*i)[track_columns.strip] == mx) {
1194                         (*i)[track_columns.text] = mx->route()->name();
1195                         return;
1196                 }
1197         }
1198
1199         error << _("track display list item for renamed strip not found!") << endmsg;
1200 }
1201
1202 bool
1203 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1204 {
1205         TreeModel::Path path;
1206         TreeViewColumn* column;
1207         int cellx;
1208         int celly;
1209
1210         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1211                 return false;
1212         }
1213
1214         TreeIter iter = group_model->get_iter (path);
1215         if (!iter) {
1216                 return false;
1217         }
1218
1219         RouteGroup* group = (*iter)[group_columns.group];
1220
1221         if (Keyboard::is_context_menu_event (ev)) {
1222                 _group_tabs->get_menu(group)->popup (1, ev->time);
1223                 return true;
1224         }
1225
1226         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1227         case 0:
1228                 if (Keyboard::is_edit_event (ev)) {
1229                         if (group) {
1230                                 // edit_route_group (group);
1231 #ifdef GTKOSX
1232                                 group_display.queue_draw();
1233 #endif
1234                                 return true;
1235                         }
1236                 }
1237                 break;
1238
1239         case 1:
1240         {
1241                 bool visible = (*iter)[group_columns.visible];
1242                 (*iter)[group_columns.visible] = !visible;
1243 #ifdef GTKOSX
1244                 group_display.queue_draw();
1245 #endif
1246                 return true;
1247         }
1248
1249         default:
1250                 break;
1251         }
1252
1253         return false;
1254  }
1255
1256 void
1257 Mixer_UI::activate_all_route_groups ()
1258 {
1259         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1260 }
1261
1262 void
1263 Mixer_UI::disable_all_route_groups ()
1264 {
1265         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1266 }
1267
1268 void
1269 Mixer_UI::route_groups_changed ()
1270 {
1271         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1272
1273         _in_group_rebuild_or_clear = true;
1274
1275         /* just rebuild the while thing */
1276
1277         group_model->clear ();
1278
1279         {
1280                 TreeModel::Row row;
1281                 row = *(group_model->append());
1282                 row[group_columns.visible] = true;
1283                 row[group_columns.text] = (_("-all-"));
1284                 row[group_columns.group] = 0;
1285         }
1286
1287         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1288
1289         _group_tabs->set_dirty ();
1290         _in_group_rebuild_or_clear = false;
1291 }
1292
1293 void
1294 Mixer_UI::new_route_group ()
1295 {
1296         RouteList rl;
1297
1298         _group_tabs->run_new_group_dialog (rl);
1299 }
1300
1301 void
1302 Mixer_UI::remove_selected_route_group ()
1303 {
1304         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1305         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1306
1307         if (rows.empty()) {
1308                 return;
1309         }
1310
1311         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1312         TreeIter iter;
1313
1314         /* selection mode is single, so rows.begin() is it */
1315
1316         if ((iter = group_model->get_iter (*i))) {
1317
1318                 RouteGroup* rg = (*iter)[group_columns.group];
1319
1320                 if (rg) {
1321                         _session->remove_route_group (*rg);
1322                 }
1323         }
1324 }
1325
1326 void
1327 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1328 {
1329         if (in_group_row_change) {
1330                 return;
1331         }
1332
1333         /* force an update of any mixer strips that are using this group,
1334            otherwise mix group names don't change in mixer strips
1335         */
1336
1337         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1338                 if ((*i)->route_group() == group) {
1339                         (*i)->route_group_changed();
1340                 }
1341         }
1342
1343         TreeModel::iterator i;
1344         TreeModel::Children rows = group_model->children();
1345         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1346
1347         in_group_row_change = true;
1348
1349         for (i = rows.begin(); i != rows.end(); ++i) {
1350                 if ((*i)[group_columns.group] == group) {
1351                         (*i)[group_columns.visible] = !group->is_hidden ();
1352                         (*i)[group_columns.text] = group->name ();
1353                         break;
1354                 }
1355         }
1356
1357         in_group_row_change = false;
1358
1359         if (change.contains (Properties::name)) {
1360                 _group_tabs->set_dirty ();
1361         }
1362
1363         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1364                 if ((*j)->route_group() == group) {
1365                         if (group->is_hidden ()) {
1366                                 hide_strip (*j);
1367                         } else {
1368                                 show_strip (*j);
1369                         }
1370                 }
1371         }
1372 }
1373
1374 void
1375 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1376 {
1377         RouteGroup* group;
1378         TreeIter iter;
1379
1380         if ((iter = group_model->get_iter (path))) {
1381
1382                 if ((group = (*iter)[group_columns.group]) == 0) {
1383                         return;
1384                 }
1385
1386                 if (new_text != group->name()) {
1387                         group->set_name (new_text);
1388                 }
1389         }
1390 }
1391
1392 void
1393 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1394 {
1395         RouteGroup* group;
1396
1397         if (in_group_row_change) {
1398                 return;
1399         }
1400
1401         if ((group = (*iter)[group_columns.group]) == 0) {
1402                 return;
1403         }
1404
1405         std::string name = (*iter)[group_columns.text];
1406
1407         if (name != group->name()) {
1408                 group->set_name (name);
1409         }
1410
1411         bool hidden = !(*iter)[group_columns.visible];
1412
1413         if (hidden != group->is_hidden ()) {
1414                 group->set_hidden (hidden, this);
1415         }
1416 }
1417
1418 /** Called when a group model row is deleted, but also when the model is
1419  *  reordered by a user drag-and-drop; the latter is what we are
1420  *  interested in here.
1421  */
1422 void
1423 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1424 {
1425         if (_in_group_rebuild_or_clear) {
1426                 return;
1427         }
1428
1429         /* Re-write the session's route group list so that the new order is preserved */
1430
1431         list<RouteGroup*> new_list;
1432
1433         Gtk::TreeModel::Children children = group_model->children();
1434         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1435                 RouteGroup* g = (*i)[group_columns.group];
1436                 if (g) {
1437                         new_list.push_back (g);
1438                 }
1439         }
1440
1441         _session->reorder_route_groups (new_list);
1442 }
1443
1444
1445 void
1446 Mixer_UI::add_route_group (RouteGroup* group)
1447 {
1448         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1449         bool focus = false;
1450
1451         in_group_row_change = true;
1452
1453         TreeModel::Row row = *(group_model->append());
1454         row[group_columns.visible] = !group->is_hidden ();
1455         row[group_columns.group] = group;
1456         if (!group->name().empty()) {
1457                 row[group_columns.text] = group->name();
1458         } else {
1459                 row[group_columns.text] = _("unnamed");
1460                 focus = true;
1461         }
1462
1463         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1464
1465         if (focus) {
1466                 TreeViewColumn* col = group_display.get_column (0);
1467                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1468                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1469         }
1470
1471         _group_tabs->set_dirty ();
1472
1473         in_group_row_change = false;
1474 }
1475
1476 bool
1477 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1478 {
1479         using namespace Menu_Helpers;
1480
1481         if (Keyboard::is_context_menu_event (ev)) {
1482                 ARDOUR_UI::instance()->add_route (this);
1483                 return true;
1484         }
1485
1486         return false;
1487 }
1488
1489 void
1490 Mixer_UI::set_strip_width (Width w, bool save)
1491 {
1492         _strip_width = w;
1493
1494         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1495                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1496         }
1497 }
1498
1499 void
1500 Mixer_UI::set_window_pos_and_size ()
1501 {
1502         resize (m_width, m_height);
1503         move (m_root_x, m_root_y);
1504 }
1505
1506         void
1507 Mixer_UI::get_window_pos_and_size ()
1508 {
1509         get_position(m_root_x, m_root_y);
1510         get_size(m_width, m_height);
1511 }
1512
1513 int
1514 Mixer_UI::set_state (const XMLNode& node)
1515 {
1516         const XMLProperty* prop;
1517         XMLNode* geometry;
1518
1519         m_width = default_width;
1520         m_height = default_height;
1521         m_root_x = 1;
1522         m_root_y = 1;
1523
1524         if ((geometry = find_named_node (node, "geometry")) != 0) {
1525
1526                 XMLProperty* prop;
1527
1528                 if ((prop = geometry->property("x_size")) == 0) {
1529                         prop = geometry->property ("x-size");
1530                 }
1531                 if (prop) {
1532                         m_width = atoi(prop->value());
1533                 }
1534                 if ((prop = geometry->property("y_size")) == 0) {
1535                         prop = geometry->property ("y-size");
1536                 }
1537                 if (prop) {
1538                         m_height = atoi(prop->value());
1539                 }
1540
1541                 if ((prop = geometry->property ("x_pos")) == 0) {
1542                         prop = geometry->property ("x-pos");
1543                 }
1544                 if (prop) {
1545                         m_root_x = atoi (prop->value());
1546
1547                 }
1548                 if ((prop = geometry->property ("y_pos")) == 0) {
1549                         prop = geometry->property ("y-pos");
1550                 }
1551                 if (prop) {
1552                         m_root_y = atoi (prop->value());
1553                 }
1554         }
1555
1556         set_window_pos_and_size ();
1557
1558         if ((prop = node.property ("narrow-strips"))) {
1559                 if (string_is_affirmative (prop->value())) {
1560                         set_strip_width (Narrow);
1561                 } else {
1562                         set_strip_width (Wide);
1563                 }
1564         }
1565
1566         if ((prop = node.property ("show-mixer"))) {
1567                 if (string_is_affirmative (prop->value())) {
1568                        _visible = true;
1569                 }
1570         }
1571
1572         if ((prop = node.property ("maximised"))) {
1573                 bool yn = string_is_affirmative (prop->value());
1574                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
1575                 assert (act);
1576                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1577                 bool fs = tact && tact->get_active();
1578                 if (yn ^ fs) {
1579                         ActionManager::do_action ("Common",
1580                                         "ToggleMaximalMixer");
1581                 }
1582         }
1583
1584
1585         return 0;
1586 }
1587
1588 XMLNode&
1589 Mixer_UI::get_state (void)
1590 {
1591         XMLNode* node = new XMLNode ("Mixer");
1592
1593         if (is_realized()) {
1594                 Glib::RefPtr<Gdk::Window> win = get_window();
1595
1596                 get_window_pos_and_size ();
1597
1598                 XMLNode* geometry = new XMLNode ("geometry");
1599                 char buf[32];
1600                 snprintf(buf, sizeof(buf), "%d", m_width);
1601                 geometry->add_property(X_("x_size"), string(buf));
1602                 snprintf(buf, sizeof(buf), "%d", m_height);
1603                 geometry->add_property(X_("y_size"), string(buf));
1604                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1605                 geometry->add_property(X_("x_pos"), string(buf));
1606                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1607                 geometry->add_property(X_("y_pos"), string(buf));
1608
1609                 // written only for compatibility, they are not used.
1610                 snprintf(buf, sizeof(buf), "%d", 0);
1611                 geometry->add_property(X_("x_off"), string(buf));
1612                 snprintf(buf, sizeof(buf), "%d", 0);
1613                 geometry->add_property(X_("y_off"), string(buf));
1614
1615                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1616                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1617                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1618                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1619
1620                 node->add_child_nocopy (*geometry);
1621         }
1622
1623         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1624
1625         node->add_property ("show-mixer", _visible ? "yes" : "no");
1626
1627         node->add_property ("maximised", _maximised ? "yes" : "no");
1628
1629         return *node;
1630 }
1631
1632
1633 void
1634 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1635 {
1636         int pos;
1637         XMLProperty* prop = 0;
1638         char buf[32];
1639         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1640         XMLNode* geometry;
1641         int height;
1642         static int32_t done[3] = { 0, 0, 0 };
1643
1644         height = default_height;
1645
1646         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1647
1648                 if ((prop = geometry->property ("y_size")) == 0) {
1649                         prop = geometry->property ("y-size");
1650                 }
1651                 if (prop) {
1652                         height = atoi (prop->value());
1653                 }
1654         }
1655
1656         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1657
1658                 if (done[0]) {
1659                         return;
1660                 }
1661
1662                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1663                         pos = height / 3;
1664                         snprintf (buf, sizeof(buf), "%d", pos);
1665                 } else {
1666                         pos = atoi (prop->value());
1667                 }
1668
1669                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1670                         rhs_pane1.set_position (pos);
1671                 }
1672
1673         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1674
1675                 if (done[2]) {
1676                         return;
1677                 }
1678
1679                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1680                         pos = 75;
1681                         snprintf (buf, sizeof(buf), "%d", pos);
1682                 } else {
1683                         pos = atoi (prop->value());
1684                 }
1685
1686                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1687                         list_hpane.set_position (pos);
1688                 }
1689         }
1690 }
1691 void
1692 Mixer_UI::scroll_left ()
1693 {
1694         if (!scroller.get_hscrollbar()) return;
1695         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1696         /* stupid GTK: can't rely on clamping across versions */
1697         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1698 }
1699
1700 void
1701 Mixer_UI::scroll_right ()
1702 {
1703         if (!scroller.get_hscrollbar()) return;
1704         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1705         /* stupid GTK: can't rely on clamping across versions */
1706         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1707 }
1708
1709 bool
1710 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1711 {
1712         /* focus widget gets first shot, then bindings, otherwise
1713            forward to main window
1714         */
1715
1716         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1717                 return true;
1718         }
1719
1720         KeyboardKey k (ev->state, ev->keyval);
1721
1722         if (bindings.activate (k, Bindings::Press)) {
1723                 return true;
1724         }
1725
1726         return forward_key_press (ev);
1727 }
1728
1729 bool
1730 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1731 {
1732         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1733                 return true;
1734         }
1735
1736         KeyboardKey k (ev->state, ev->keyval);
1737
1738         if (bindings.activate (k, Bindings::Release)) {
1739                 return true;
1740         }
1741
1742         /* don't forward releases */
1743
1744         return true;
1745 }
1746
1747 bool
1748 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1749 {
1750         switch (ev->direction) {
1751         case GDK_SCROLL_LEFT:
1752                 scroll_left ();
1753                 return true;
1754         case GDK_SCROLL_UP:
1755                 if (ev->state & Keyboard::TertiaryModifier) {
1756                         scroll_left ();
1757                         return true;
1758                 }
1759                 return false;
1760
1761         case GDK_SCROLL_RIGHT:
1762                 scroll_right ();
1763                 return true;
1764
1765         case GDK_SCROLL_DOWN:
1766                 if (ev->state & Keyboard::TertiaryModifier) {
1767                         scroll_right ();
1768                         return true;
1769                 }
1770                 return false;
1771         }
1772
1773         return false;
1774 }
1775
1776
1777 void
1778 Mixer_UI::parameter_changed (string const & p)
1779 {
1780         if (p == "show-group-tabs") {
1781                 bool const s = _session->config.get_show_group_tabs ();
1782                 if (s) {
1783                         _group_tabs->show ();
1784                 } else {
1785                         _group_tabs->hide ();
1786                 }
1787         } else if (p == "default-narrow_ms") {
1788                 bool const s = Config->get_default_narrow_ms ();
1789                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1790                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1791                 }
1792         } else if (p == "remote-model") {
1793                 reset_remote_control_ids ();
1794         }
1795 }
1796
1797 void
1798 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1799 {
1800         g->set_active (a, this);
1801 }
1802
1803 PluginSelector*
1804 Mixer_UI::plugin_selector()
1805 {
1806 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1807         if (!_plugin_selector)
1808                 _plugin_selector = new PluginSelector (PluginManager::instance());
1809 #endif
1810
1811         return _plugin_selector;
1812 }
1813
1814 void
1815 Mixer_UI::setup_track_display ()
1816 {
1817         track_model = ListStore::create (track_columns);
1818         track_display.set_model (track_model);
1819         track_display.append_column (_("Strips"), track_columns.text);
1820         track_display.append_column (_("Show"), track_columns.visible);
1821         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1822         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1823         track_display.get_column (0)->set_expand(true);
1824         track_display.get_column (1)->set_expand(false);
1825         track_display.set_name (X_("EditGroupList"));
1826         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1827         track_display.set_reorderable (true);
1828         track_display.set_headers_visible (true);
1829
1830         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1831         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1832
1833         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1834         track_list_visible_cell->property_activatable() = true;
1835         track_list_visible_cell->property_radio() = false;
1836         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
1837
1838         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1839
1840         track_display_scroller.add (track_display);
1841         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1842
1843         VBox* v = manage (new VBox);
1844         v->show ();
1845         v->pack_start (track_display_scroller, true, true);
1846
1847         Button* b = manage (new Button);
1848         b->show ();
1849         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1850         w->show ();
1851         b->add (*w);
1852
1853         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1854
1855         v->pack_start (*b, false, false);
1856
1857         track_display_frame.set_name("BaseFrame");
1858         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1859         track_display_frame.add (*v);
1860
1861         track_display_scroller.show();
1862         track_display_frame.show();
1863         track_display.show();
1864 }
1865
1866 void
1867 Mixer_UI::new_track_or_bus ()
1868 {
1869         ARDOUR_UI::instance()->add_route (this);
1870 }
1871
1872
1873 void
1874 Mixer_UI::update_title ()
1875 {
1876         if (_session) {
1877                 string n;
1878
1879                 if (_session->snap_name() != _session->name()) {
1880                         n = _session->snap_name ();
1881                 } else {
1882                         n = _session->name ();
1883                 }
1884
1885                 if (_session->dirty ()) {
1886                         n = "*" + n;
1887                 }
1888
1889                 WindowTitle title (n);
1890                 title += S_("Window|Mixer");
1891                 title += Glib::get_application_name ();
1892                 set_title (title.get_string());
1893
1894         } else {
1895
1896                 WindowTitle title (S_("Window|Mixer"));
1897                 title += Glib::get_application_name ();
1898                 set_title (title.get_string());
1899         }
1900 }
1901
1902 MixerStrip*
1903 Mixer_UI::strip_by_x (int x)
1904 {
1905         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1906                 int x1, x2, y;
1907
1908                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1909                 x2 = x1 + (*i)->get_width();
1910
1911                 if (x >= x1 && x <= x2) {
1912                         return (*i);
1913                 }
1914         }
1915
1916         return 0;
1917 }
1918
1919 void
1920 Mixer_UI::set_route_targets_for_operation ()
1921 {
1922         _route_targets.clear ();
1923
1924         if (!_selection.empty()) {
1925                 _route_targets = _selection.routes;
1926                 return;
1927         }
1928
1929         /* nothing selected ... try to get mixer strip at mouse */
1930
1931         int x, y;
1932         get_pointer (x, y);
1933
1934         MixerStrip* ms = strip_by_x (x);
1935
1936         if (ms) {
1937                 _route_targets.insert (ms);
1938         }
1939 }
1940
1941 void
1942 Mixer_UI::monitor_section_going_away ()
1943 {
1944         if (_monitor_section) {
1945                 out_packer.remove (_monitor_section->tearoff());
1946                 _monitor_section->set_session (0);
1947         }
1948 }
1949
1950 void
1951 Mixer_UI::toggle_midi_input_active (bool flip_others)
1952 {
1953         boost::shared_ptr<RouteList> rl (new RouteList);
1954         bool onoff = false;
1955
1956         set_route_targets_for_operation ();
1957
1958         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
1959                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
1960
1961                 if (mt) {
1962                         rl->push_back ((*r)->route());
1963                         onoff = !mt->input_active();
1964                 }
1965         }
1966
1967         _session->set_exclusive_input_active (rl, onoff, flip_others);
1968 }
1969
1970 void
1971 Mixer_UI::maximise_mixer_space ()
1972 {
1973         if (_maximised) {
1974                 return;
1975         }
1976
1977         fullscreen ();
1978
1979         _maximised = true;
1980 }
1981
1982 void
1983 Mixer_UI::restore_mixer_space ()
1984 {
1985         if (!_maximised) {
1986                 return;
1987         }
1988
1989         unfullscreen();
1990
1991         _maximised = false;
1992 }