gtk2_ardour/mixer_ui.cc

   1 /*
   2     Copyright (C) 2000-2004 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 #ifdef WAF_BUILD
  21 #include "gtk2ardour-config.h"
  22 #endif
  23
  24 #include <algorithm>
  25 #include <map>
  26 #include <sigc++/bind.h>
  27
  28 #include <gtkmm/accelmap.h>
  29
  30 #include "pbd/convert.h"
  31 #include "pbd/unwind.h"
  32
  33 #include <glibmm/threads.h>
  34
  35 #include <gtkmm2ext/gtk_ui.h>
  36 #include <gtkmm2ext/utils.h>
  37 #include <gtkmm2ext/tearoff.h>
  38 #include <gtkmm2ext/window_title.h>
  39
  40 #include "ardour/debug.h"
  41 #include "ardour/midi_track.h"
  42 #include "ardour/plugin_manager.h"
  43 #include "ardour/route_group.h"
  44 #include "ardour/route_sorters.h"
  45 #include "ardour/session.h"
  46
  47 #include "keyboard.h"
  48 #include "mixer_ui.h"
  49 #include "mixer_strip.h"
  50 #include "monitor_section.h"
  51 #include "plugin_selector.h"
  52 #include "public_editor.h"
  53 #include "ardour_ui.h"
  54 #include "prompter.h"
  55 #include "utils.h"
  56 #include "route_sorter.h"
  57 #include "actions.h"
  58 #include "gui_thread.h"
  59 #include "mixer_group_tabs.h"
  60
  61 #include "i18n.h"
  62
  63 using namespace ARDOUR;
  64 using namespace ARDOUR_UI_UTILS;
  65 using namespace PBD;
  66 using namespace Gtk;
  67 using namespace Glib;
  68 using namespace Gtkmm2ext;
  69 using namespace std;
  70
  71 using PBD::atoi;
  72 using PBD::Unwinder;
  73
  74 Mixer_UI* Mixer_UI::_instance = 0;
  75
  76 Mixer_UI*
  77 Mixer_UI::instance ()
  78 {
  79         if (!_instance) {
  80                 _instance  = new Mixer_UI;
  81         }
  82
  83         return _instance;
  84 }
  85
  86 Mixer_UI::Mixer_UI ()
  87         : Window (Gtk::WINDOW_TOPLEVEL)
  88         , VisibilityTracker (*((Gtk::Window*) this))
  89         , _visible (false)
  90         , no_track_list_redisplay (false)
  91         , in_group_row_change (false)
  92         , track_menu (0)
  93         , _monitor_section (0)
  94         , _strip_width (Config->get_default_narrow_ms() ? Narrow : Wide)
  95         , ignore_reorder (false)
  96         , _in_group_rebuild_or_clear (false)
  97         , _route_deletion_in_progress (false)
  98         , _following_editor_selection (false)
  99         , _maximised (false)
 100 {
 101         /* allow this window to become the key focus window */
 102         set_flags (CAN_FOCUS);
 103
 104         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_order_keys, this), gui_context());
 105
 106         scroller.set_can_default (true);
 107         set_default (scroller);
 108
 109         scroller_base.set_flags (Gtk::CAN_FOCUS);
 110         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 111         scroller_base.set_name ("MixerWindow");
 112         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 113         // add as last item of strip packer
 114         strip_packer.pack_end (scroller_base, true, true);
 115
 116         _group_tabs = new MixerGroupTabs (this);
 117         VBox* b = manage (new VBox);
 118         b->pack_start (*_group_tabs, PACK_SHRINK);
 119         b->pack_start (strip_packer);
 120         b->show_all ();
 121
 122         scroller.add (*b);
 123         scroller.set_policy (Gtk::POLICY_ALWAYS, Gtk::POLICY_AUTOMATIC);
 124
 125         setup_track_display ();
 126
 127         group_model = ListStore::create (group_columns);
 128         group_display.set_model (group_model);
 129         group_display.append_column (_("Group"), group_columns.text);
 130         group_display.append_column (_("Show"), group_columns.visible);
 131         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 132         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 133         group_display.get_column (0)->set_expand(true);
 134         group_display.get_column (1)->set_expand(false);
 135         group_display.set_name ("EditGroupList");
 136         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 137         group_display.set_reorderable (true);
 138         group_display.set_headers_visible (true);
 139         group_display.set_rules_hint (true);
 140
 141         /* name is directly editable */
 142
 143         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 144         name_cell->property_editable() = true;
 145         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 146
 147         /* use checkbox for the active column */
 148
 149         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 150         active_cell->property_activatable() = true;
 151         active_cell->property_radio() = false;
 152
 153         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 154         /* We use this to notice drag-and-drop reorders of the group list */
 155         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 156         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 157
 158         group_display_scroller.add (group_display);
 159         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 160
 161         HBox* route_group_display_button_box = manage (new HBox());
 162
 163         Button* route_group_add_button = manage (new Button ());
 164         Button* route_group_remove_button = manage (new Button ());
 165
 166         Widget* w;
 167
 168         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 169         w->show();
 170         route_group_add_button->add (*w);
 171
 172         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 173         w->show();
 174         route_group_remove_button->add (*w);
 175
 176         route_group_display_button_box->set_homogeneous (true);
 177
 178         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 179         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 180
 181         route_group_display_button_box->add (*route_group_add_button);
 182         route_group_display_button_box->add (*route_group_remove_button);
 183
 184         group_display_vbox.pack_start (group_display_scroller, true, true);
 185         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 186
 187         group_display_frame.set_name ("BaseFrame");
 188         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 189         group_display_frame.add (group_display_vbox);
 190
 191         rhs_pane1.pack1 (track_display_frame);
 192         rhs_pane1.pack2 (group_display_frame);
 193
 194         list_vpacker.pack_start (rhs_pane1, true, true);
 195
 196         global_hpacker.pack_start (scroller, true, true);
 197 #ifdef GTKOSX
 198         /* current gtk-quartz has dirty updates on borders like this one */
 199         global_hpacker.pack_start (out_packer, false, false, 0);
 200 #else
 201         global_hpacker.pack_start (out_packer, false, false, 12);
 202 #endif
 203         list_hpane.pack1(list_vpacker, true, true);
 204         list_hpane.pack2(global_hpacker, true, false);
 205
 206         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 207                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 208         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 209                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 210
 211         global_vpacker.pack_start (list_hpane, true, true);
 212
 213         add (global_vpacker);
 214         set_name ("MixerWindow");
 215
 216         update_title ();
 217
 218         set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
 219
 220         signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
 221         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 222
 223         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 224
 225         route_group_display_button_box->show();
 226         route_group_add_button->show();
 227         route_group_remove_button->show();
 228
 229         global_hpacker.show();
 230         global_vpacker.show();
 231         scroller.show();
 232         scroller_base.show();
 233         scroller_hpacker.show();
 234         mixer_scroller_vpacker.show();
 235         list_vpacker.show();
 236         group_display_button_label.show();
 237         group_display_button.show();
 238         group_display_scroller.show();
 239         group_display_vbox.show();
 240         group_display_frame.show();
 241         rhs_pane1.show();
 242         strip_packer.show();
 243         out_packer.show();
 244         list_hpane.show();
 245         group_display.show();
 246
 247         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 248
 249         MonitorSection::setup_knob_images ();
 250
 251 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 252         _plugin_selector = new PluginSelector (PluginManager::instance ());
 253 #endif
 254 }
 255
 256 Mixer_UI::~Mixer_UI ()
 257 {
 258         if (_monitor_section) {
 259                 delete _monitor_section;
 260         }
 261 }
 262
 263 void
 264 Mixer_UI::track_editor_selection ()
 265 {
 266         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 267 }
 268
 269
 270 void
 271 Mixer_UI::ensure_float (Window& win)
 272 {
 273         win.set_transient_for (*this);
 274 }
 275
 276 void
 277 Mixer_UI::show_window ()
 278 {
 279         present ();
 280         if (!_visible) {
 281                 set_window_pos_and_size ();
 282
 283                 /* show/hide group tabs as required */
 284                 parameter_changed ("show-group-tabs");
 285
 286                 /* now reset each strips width so the right widgets are shown */
 287                 MixerStrip* ms;
 288
 289                 TreeModel::Children rows = track_model->children();
 290                 TreeModel::Children::iterator ri;
 291
 292                 for (ri = rows.begin(); ri != rows.end(); ++ri) {
 293                         ms = (*ri)[track_columns.strip];
 294                         ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 295                         /* Fix visibility of mixer strip stuff */
 296                         ms->parameter_changed (X_("mixer-element-visibility"));
 297                 }
 298         }
 299
 300         /* force focus into main area */
 301         scroller_base.grab_focus ();
 302
 303         _visible = true;
 304 }
 305
 306 bool
 307 Mixer_UI::hide_window (GdkEventAny *ev)
 308 {
 309         get_window_pos_and_size ();
 310
 311         _visible = false;
 312         return just_hide_it(ev, static_cast<Gtk::Window *>(this));
 313 }
 314
 315
 316 void
 317 Mixer_UI::add_strips (RouteList& routes)
 318 {
 319         bool from_scratch = track_model->children().size() == 0;
 320         Gtk::TreeModel::Children::iterator insert_iter = track_model->children().end();
 321
 322         for (Gtk::TreeModel::Children::iterator it = track_model->children().begin(); it != track_model->children().end(); ++it) {
 323                 boost::shared_ptr<Route> r = (*it)[track_columns.route];
 324
 325                 if (r->order_key() == (routes.front()->order_key() + routes.size())) {
 326                         insert_iter = it;
 327                         break;
 328                 }
 329         }
 330
 331         if(!from_scratch) {
 332                 _selection.clear_routes ();
 333         }
 334
 335         MixerStrip* strip;
 336
 337         try {
 338                 no_track_list_redisplay = true;
 339                 track_display.set_model (Glib::RefPtr<ListStore>());
 340
 341                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 342                         boost::shared_ptr<Route> route = (*x);
 343
 344                         if (route->is_auditioner()) {
 345                                 continue;
 346                         }
 347
 348                         if (route->is_monitor()) {
 349
 350                                 if (!_monitor_section) {
 351                                         _monitor_section = new MonitorSection (_session);
 352
 353                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 354                                         if (mnode) {
 355                                                 _monitor_section->tearoff().set_state (*mnode);
 356                                         }
 357                                 }
 358
 359                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 360                                 _monitor_section->set_session (_session);
 361                                 _monitor_section->tearoff().show_all ();
 362
 363                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 364
 365                                 /* no regular strip shown for control out */
 366
 367                                 continue;
 368                         }
 369
 370                         strip = new MixerStrip (*this, _session, route);
 371                         strips.push_back (strip);
 372
 373                         Config->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 374
 375                         if (strip->width_owner() != strip) {
 376                                 strip->set_width_enum (_strip_width, this);
 377                         }
 378
 379                         show_strip (strip);
 380
 381                         TreeModel::Row row = *(track_model->insert(insert_iter));
 382                         row[track_columns.text] = route->name();
 383                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 384                         row[track_columns.route] = route;
 385                         row[track_columns.strip] = strip;
 386
 387                         if (!from_scratch) {
 388                                 _selection.add (strip);
 389                         }
 390
 391                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 392
 393                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 394                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 395                 }
 396
 397         } catch (...) {
 398         }
 399
 400         no_track_list_redisplay = false;
 401         track_display.set_model (track_model);
 402
 403         sync_order_keys_from_treeview ();
 404         redisplay_track_list ();
 405 }
 406
 407 void
 408 Mixer_UI::deselect_all_strip_processors ()
 409 {
 410         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 411                 (*i)->deselect_all_processors();
 412         }
 413 }
 414
 415 void
 416 Mixer_UI::select_none ()
 417 {
 418         _selection.clear_routes();
 419         deselect_all_strip_processors();
 420 }
 421
 422 void
 423 Mixer_UI::delete_processors ()
 424 {
 425         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 426                 (*i)->delete_processors();
 427         }
 428 }
 429
 430
 431 void
 432 Mixer_UI::remove_strip (MixerStrip* strip)
 433 {
 434         if (_session && _session->deletion_in_progress()) {
 435                 /* its all being taken care of */
 436                 return;
 437         }
 438
 439         TreeModel::Children rows = track_model->children();
 440         TreeModel::Children::iterator ri;
 441         list<MixerStrip *>::iterator i;
 442
 443         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 444                 strips.erase (i);
 445         }
 446
 447         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 448                 if ((*ri)[track_columns.strip] == strip) {
 449                         PBD::Unwinder<bool> uw (_route_deletion_in_progress, true);
 450                         track_model->erase (ri);
 451                         break;
 452                 }
 453         }
 454 }
 455
 456 void
 457 Mixer_UI::reset_remote_control_ids ()
 458 {
 459         if (Config->get_remote_model() == UserOrdered || !_session || _session->deletion_in_progress()) {
 460                 return;
 461         }
 462
 463         TreeModel::Children rows = track_model->children();
 464
 465         if (rows.empty()) {
 466                 return;
 467         }
 468
 469         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 470
 471         TreeModel::Children::iterator ri;
 472         bool rid_change = false;
 473         uint32_t rid = 1;
 474         uint32_t invisible_key = UINT32_MAX;
 475
 476         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 477                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 478                 bool visible = (*ri)[track_columns.visible];
 479
 480                 if (!route->is_master() && !route->is_monitor()) {
 481
 482                         uint32_t new_rid = (visible ? rid : invisible_key--);
 483
 484                         if (new_rid != route->remote_control_id()) {
 485                                 route->set_remote_control_id_explicit (new_rid);
 486                                 rid_change = true;
 487                         }
 488
 489                         if (visible) {
 490                                 rid++;
 491                         }
 492                 }
 493         }
 494
 495         if (rid_change) {
 496                 /* tell the world that we changed the remote control IDs */
 497                 _session->notify_remote_id_change ();
 498         }
 499 }
 500
 501 void
 502 Mixer_UI::sync_order_keys_from_treeview ()
 503 {
 504         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 505                 return;
 506         }
 507
 508         TreeModel::Children rows = track_model->children();
 509
 510         if (rows.empty()) {
 511                 return;
 512         }
 513
 514         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 515
 516         TreeModel::Children::iterator ri;
 517         bool changed = false;
 518         bool rid_change = false;
 519         uint32_t order = 0;
 520         uint32_t rid = 1;
 521         uint32_t invisible_key = UINT32_MAX;
 522
 523         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 524                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 525                 bool visible = (*ri)[track_columns.visible];
 526
 527                 uint32_t old_key = route->order_key ();
 528
 529                 if (order != old_key) {
 530                         route->set_order_key (order);
 531                         changed = true;
 532                 }
 533
 534                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 535
 536                         uint32_t new_rid = (visible ? rid : invisible_key--);
 537
 538                         if (new_rid != route->remote_control_id()) {
 539                                 route->set_remote_control_id_explicit (new_rid);
 540                                 rid_change = true;
 541                         }
 542
 543                         if (visible) {
 544                                 rid++;
 545                         }
 546
 547                 }
 548
 549                 ++order;
 550         }
 551
 552         if (changed) {
 553                 /* tell everyone that we changed the mixer sort keys */
 554                 _session->sync_order_keys ();
 555         }
 556
 557         if (rid_change) {
 558                 /* tell the world that we changed the remote control IDs */
 559                 _session->notify_remote_id_change ();
 560         }
 561 }
 562
 563 void
 564 Mixer_UI::sync_treeview_from_order_keys ()
 565 {
 566         if (!_session || _session->deletion_in_progress()) {
 567                 return;
 568         }
 569
 570         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync model from order keys.\n");
 571
 572         /* we could get here after either a change in the Mixer or Editor sort
 573          * order, but either way, the mixer order keys reflect the intended
 574          * order for the GUI, so reorder the treeview model to match it.
 575          */
 576
 577         vector<int> neworder;
 578         TreeModel::Children rows = track_model->children();
 579         uint32_t old_order = 0;
 580         bool changed = false;
 581
 582         if (rows.empty()) {
 583                 return;
 584         }
 585
 586         OrderKeySortedRoutes sorted_routes;
 587
 588         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 589                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 590                 sorted_routes.push_back (RoutePlusOrderKey (route, old_order, route->order_key ()));
 591         }
 592
 593         SortByNewDisplayOrder cmp;
 594
 595         sort (sorted_routes.begin(), sorted_routes.end(), cmp);
 596         neworder.assign (sorted_routes.size(), 0);
 597
 598         uint32_t n = 0;
 599
 600         for (OrderKeySortedRoutes::iterator sr = sorted_routes.begin(); sr != sorted_routes.end(); ++sr, ++n) {
 601
 602                 neworder[n] = sr->old_display_order;
 603
 604                 if (sr->old_display_order != n) {
 605                         changed = true;
 606                 }
 607
 608                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order for %1 from %2 to %3\n",
 609                                                                sr->route->name(), sr->old_display_order, n));
 610         }
 611
 612         if (changed) {
 613                 Unwinder<bool> uw (ignore_reorder, true);
 614                 track_model->reorder (neworder);
 615         }
 616
 617         redisplay_track_list ();
 618 }
 619
 620 void
 621 Mixer_UI::follow_editor_selection ()
 622 {
 623         if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
 624                 return;
 625         }
 626
 627         _following_editor_selection = true;
 628         _selection.block_routes_changed (true);
 629
 630         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 631
 632         _selection.clear_routes ();
 633
 634         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 635                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 636                 if (rtav) {
 637                         MixerStrip* ms = strip_by_route (rtav->route());
 638                         if (ms) {
 639                                 _selection.add (ms);
 640                         }
 641                 }
 642         }
 643
 644         _following_editor_selection = false;
 645         _selection.block_routes_changed (false);
 646 }
 647
 648
 649 MixerStrip*
 650 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 651 {
 652         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 653                 if ((*i)->route() == r) {
 654                         return (*i);
 655                 }
 656         }
 657
 658         return 0;
 659 }
 660
 661 bool
 662 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 663 {
 664         if (ev->button == 1) {
 665                 if (_selection.selected (strip)) {
 666                         /* primary-click: toggle selection state of strip */
 667                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 668                                 _selection.remove (strip);
 669                         }
 670                 } else {
 671                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 672                                 _selection.add (strip);
 673                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 674
 675                                 if (!_selection.selected(strip)) {
 676
 677                                         /* extend selection */
 678
 679                                         vector<MixerStrip*> tmp;
 680                                         bool accumulate = false;
 681
 682                                         tmp.push_back (strip);
 683
 684                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 685                                                 if ((*i) == strip) {
 686                                                         /* hit clicked strip, start accumulating till we hit the first
 687                                                            selected strip
 688                                                         */
 689                                                         if (accumulate) {
 690                                                                 /* done */
 691                                                                 break;
 692                                                         } else {
 693                                                                 accumulate = true;
 694                                                         }
 695                                                 } else if (_selection.selected (*i)) {
 696                                                         /* hit selected strip. if currently accumulating others,
 697                                                            we're done. if not accumulating others, start doing so.
 698                                                         */
 699                                                         if (accumulate) {
 700                                                                 /* done */
 701                                                                 break;
 702                                                         } else {
 703                                                                 accumulate = true;
 704                                                         }
 705                                                 } else {
 706                                                         if (accumulate) {
 707                                                                 tmp.push_back (*i);
 708                                                         }
 709                                                 }
 710                                         }
 711
 712                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 713                                                 _selection.add (*i);
 714                                         }
 715                                 }
 716
 717                         } else {
 718                                 _selection.set (strip);
 719                         }
 720                 }
 721         }
 722
 723         return true;
 724 }
 725
 726 void
 727 Mixer_UI::set_session (Session* sess)
 728 {
 729         SessionHandlePtr::set_session (sess);
 730
 731         if (_plugin_selector) {
 732                 _plugin_selector->set_session (_session);
 733         }
 734
 735         _group_tabs->set_session (sess);
 736
 737         if (!_session) {
 738                 return;
 739         }
 740
 741         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 742         set_state (*node);
 743
 744         update_title ();
 745
 746         initial_track_display ();
 747
 748         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 749         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 750         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 751         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 752         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 753         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 754         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 755
 756         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 757
 758         route_groups_changed ();
 759
 760         if (_visible) {
 761                 show_window();
 762
 763                 /* Bit of a hack; if we're here, we're opening the mixer because of our
 764                    instant XML state having a show-mixer property.  Fix up the corresponding
 765                    action state.
 766                 */
 767                 ActionManager::check_toggleaction ("<Actions>/Common/toggle-mixer");
 768         }
 769
 770         start_updating ();
 771 }
 772
 773 void
 774 Mixer_UI::session_going_away ()
 775 {
 776         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 777
 778         _in_group_rebuild_or_clear = true;
 779         group_model->clear ();
 780         _in_group_rebuild_or_clear = false;
 781
 782         _selection.clear ();
 783         track_model->clear ();
 784
 785         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 786                 delete (*i);
 787         }
 788
 789         if (_monitor_section) {
 790                 _monitor_section->tearoff().hide_visible ();
 791         }
 792
 793         strips.clear ();
 794
 795         stop_updating ();
 796
 797         SessionHandlePtr::session_going_away ();
 798
 799         _session = 0;
 800         update_title ();
 801 }
 802
 803 void
 804 Mixer_UI::track_visibility_changed (std::string const & path)
 805 {
 806         if (_session && _session->deletion_in_progress()) {
 807                 return;
 808         }
 809
 810         TreeIter iter;
 811
 812         if ((iter = track_model->get_iter (path))) {
 813                 MixerStrip* strip = (*iter)[track_columns.strip];
 814                 if (strip) {
 815                         bool visible = (*iter)[track_columns.visible];
 816
 817                         if (strip->set_marked_for_display (!visible)) {
 818                                 update_track_visibility ();
 819                         }
 820                 }
 821         }
 822 }
 823
 824 void
 825 Mixer_UI::update_track_visibility ()
 826 {
 827         TreeModel::Children rows = track_model->children();
 828         TreeModel::Children::iterator i;
 829
 830         {
 831                 Unwinder<bool> uw (no_track_list_redisplay, true);
 832
 833                 for (i = rows.begin(); i != rows.end(); ++i) {
 834                         MixerStrip *strip = (*i)[track_columns.strip];
 835                         (*i)[track_columns.visible] = strip->marked_for_display ();
 836                 }
 837
 838                 /* force route order keys catch up with visibility changes
 839                  */
 840
 841                 sync_order_keys_from_treeview ();
 842         }
 843
 844         redisplay_track_list ();
 845 }
 846
 847 void
 848 Mixer_UI::show_strip (MixerStrip* ms)
 849 {
 850         TreeModel::Children rows = track_model->children();
 851         TreeModel::Children::iterator i;
 852
 853         for (i = rows.begin(); i != rows.end(); ++i) {
 854
 855                 MixerStrip* strip = (*i)[track_columns.strip];
 856                 if (strip == ms) {
 857                         (*i)[track_columns.visible] = true;
 858                         redisplay_track_list ();
 859                         break;
 860                 }
 861         }
 862 }
 863
 864 void
 865 Mixer_UI::hide_strip (MixerStrip* ms)
 866 {
 867         TreeModel::Children rows = track_model->children();
 868         TreeModel::Children::iterator i;
 869
 870         for (i = rows.begin(); i != rows.end(); ++i) {
 871
 872                 MixerStrip* strip = (*i)[track_columns.strip];
 873                 if (strip == ms) {
 874                         (*i)[track_columns.visible] = false;
 875                         redisplay_track_list ();
 876                         break;
 877                 }
 878         }
 879 }
 880
 881 gint
 882 Mixer_UI::start_updating ()
 883 {
 884     fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 885     return 0;
 886 }
 887
 888 gint
 889 Mixer_UI::stop_updating ()
 890 {
 891     fast_screen_update_connection.disconnect();
 892     return 0;
 893 }
 894
 895 void
 896 Mixer_UI::fast_update_strips ()
 897 {
 898         if (is_mapped () && _session) {
 899                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 900                         (*i)->fast_update ();
 901                 }
 902         }
 903 }
 904
 905 void
 906 Mixer_UI::set_all_strips_visibility (bool yn)
 907 {
 908         TreeModel::Children rows = track_model->children();
 909         TreeModel::Children::iterator i;
 910
 911         {
 912                 Unwinder<bool> uw (no_track_list_redisplay, true);
 913
 914                 for (i = rows.begin(); i != rows.end(); ++i) {
 915
 916                         TreeModel::Row row = (*i);
 917                         MixerStrip* strip = row[track_columns.strip];
 918
 919                         if (strip == 0) {
 920                                 continue;
 921                         }
 922
 923                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 924                                 continue;
 925                         }
 926
 927                         (*i)[track_columns.visible] = yn;
 928                 }
 929         }
 930
 931         redisplay_track_list ();
 932 }
 933
 934
 935 void
 936 Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
 937 {
 938         TreeModel::Children rows = track_model->children();
 939         TreeModel::Children::iterator i;
 940
 941         {
 942                 Unwinder<bool> uw (no_track_list_redisplay, true);
 943
 944                 for (i = rows.begin(); i != rows.end(); ++i) {
 945                         TreeModel::Row row = (*i);
 946                         MixerStrip* strip = row[track_columns.strip];
 947
 948                         if (strip == 0) {
 949                                 continue;
 950                         }
 951
 952                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 953                                 continue;
 954                         }
 955
 956                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
 957
 958                         switch (tracks) {
 959                         case 0:
 960                                 (*i)[track_columns.visible] = yn;
 961                                 break;
 962
 963                         case 1:
 964                                 if (at) { /* track */
 965                                         (*i)[track_columns.visible] = yn;
 966                                 }
 967                                 break;
 968
 969                         case 2:
 970                                 if (!at) { /* bus */
 971                                         (*i)[track_columns.visible] = yn;
 972                                 }
 973                                 break;
 974                         }
 975                 }
 976         }
 977
 978         redisplay_track_list ();
 979 }
 980
 981 void
 982 Mixer_UI::hide_all_routes ()
 983 {
 984         set_all_strips_visibility (false);
 985 }
 986
 987 void
 988 Mixer_UI::show_all_routes ()
 989 {
 990         set_all_strips_visibility (true);
 991 }
 992
 993 void
 994 Mixer_UI::show_all_audiobus ()
 995 {
 996         set_all_audio_visibility (2, true);
 997 }
 998 void
 999 Mixer_UI::hide_all_audiobus ()
1000 {
1001         set_all_audio_visibility (2, false);
1002 }
1003
1004 void
1005 Mixer_UI::show_all_audiotracks()
1006 {
1007         set_all_audio_visibility (1, true);
1008 }
1009 void
1010 Mixer_UI::hide_all_audiotracks ()
1011 {
1012         set_all_audio_visibility (1, false);
1013 }
1014
1015 void
1016 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
1017 {
1018         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
1019         sync_order_keys_from_treeview ();
1020 }
1021
1022 void
1023 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
1024 {
1025         /* this happens as the second step of a DnD within the treeview as well
1026            as when a row/route is actually deleted.
1027
1028            if it was a deletion then we have to force a redisplay because
1029            order keys may not have changed.
1030         */
1031
1032         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
1033         sync_order_keys_from_treeview ();
1034
1035         if (_route_deletion_in_progress) {
1036                 redisplay_track_list ();
1037         }
1038 }
1039
1040 void
1041 Mixer_UI::redisplay_track_list ()
1042 {
1043         TreeModel::Children rows = track_model->children();
1044         TreeModel::Children::iterator i;
1045
1046         if (no_track_list_redisplay) {
1047                 return;
1048         }
1049
1050         for (i = rows.begin(); i != rows.end(); ++i) {
1051
1052                 MixerStrip* strip = (*i)[track_columns.strip];
1053
1054                 if (strip == 0) {
1055                         /* we're in the middle of changing a row, don't worry */
1056                         continue;
1057                 }
1058
1059                 bool const visible = (*i)[track_columns.visible];
1060
1061                 if (visible) {
1062                         strip->set_gui_property ("visible", true);
1063
1064                         if (strip->packed()) {
1065
1066                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1067                                         out_packer.reorder_child (*strip, -1);
1068
1069                                 } else {
1070                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1071                                 }
1072
1073                         } else {
1074
1075                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1076                                         out_packer.pack_start (*strip, false, false);
1077                                 } else {
1078                                         strip_packer.pack_start (*strip, false, false);
1079                                 }
1080                                 strip->set_packed (true);
1081                         }
1082
1083                 } else {
1084
1085                         strip->set_gui_property ("visible", false);
1086
1087                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1088                                 /* do nothing, these cannot be hidden */
1089                         } else {
1090                                 if (strip->packed()) {
1091                                         strip_packer.remove (*strip);
1092                                         strip->set_packed (false);
1093                                 }
1094                         }
1095                 }
1096         }
1097
1098         _group_tabs->set_dirty ();
1099 }
1100
1101 void
1102 Mixer_UI::strip_width_changed ()
1103 {
1104         _group_tabs->set_dirty ();
1105
1106 #ifdef GTKOSX
1107         TreeModel::Children rows = track_model->children();
1108         TreeModel::Children::iterator i;
1109         long order;
1110
1111         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1112                 MixerStrip* strip = (*i)[track_columns.strip];
1113
1114                 if (strip == 0) {
1115                         continue;
1116                 }
1117
1118                 bool visible = (*i)[track_columns.visible];
1119
1120                 if (visible) {
1121                         strip->queue_draw();
1122                 }
1123         }
1124 #endif
1125
1126 }
1127
1128 void
1129 Mixer_UI::initial_track_display ()
1130 {
1131         boost::shared_ptr<RouteList> routes = _session->get_routes();
1132         RouteList copy (*routes);
1133         ARDOUR::SignalOrderRouteSorter sorter;
1134
1135         copy.sort (sorter);
1136
1137         {
1138                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1139                 Unwinder<bool> uw2 (ignore_reorder, true);
1140
1141                 track_model->clear ();
1142                 add_strips (copy);
1143         }
1144
1145         _session->sync_order_keys ();
1146
1147         redisplay_track_list ();
1148 }
1149
1150 void
1151 Mixer_UI::show_track_list_menu ()
1152 {
1153         if (track_menu == 0) {
1154                 build_track_menu ();
1155         }
1156
1157         track_menu->popup (1, gtk_get_current_event_time());
1158 }
1159
1160 bool
1161 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1162 {
1163         if (Keyboard::is_context_menu_event (ev)) {
1164                 show_track_list_menu ();
1165                 return true;
1166         }
1167
1168         return false;
1169 }
1170
1171 void
1172 Mixer_UI::build_track_menu ()
1173 {
1174         using namespace Menu_Helpers;
1175         using namespace Gtk;
1176
1177         track_menu = new Menu;
1178         track_menu->set_name ("ArdourContextMenu");
1179         MenuList& items = track_menu->items();
1180
1181         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1182         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1183         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1184         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1185         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1186         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1187
1188 }
1189
1190 void
1191 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1192 {
1193         if (!what_changed.contains (ARDOUR::Properties::name)) {
1194                 return;
1195         }
1196
1197         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1198
1199         TreeModel::Children rows = track_model->children();
1200         TreeModel::Children::iterator i;
1201
1202         for (i = rows.begin(); i != rows.end(); ++i) {
1203                 if ((*i)[track_columns.strip] == mx) {
1204                         (*i)[track_columns.text] = mx->route()->name();
1205                         return;
1206                 }
1207         }
1208
1209         error << _("track display list item for renamed strip not found!") << endmsg;
1210 }
1211
1212 bool
1213 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1214 {
1215         TreeModel::Path path;
1216         TreeViewColumn* column;
1217         int cellx;
1218         int celly;
1219
1220         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1221                 return false;
1222         }
1223
1224         TreeIter iter = group_model->get_iter (path);
1225         if (!iter) {
1226                 return false;
1227         }
1228
1229         RouteGroup* group = (*iter)[group_columns.group];
1230
1231         if (Keyboard::is_context_menu_event (ev)) {
1232                 _group_tabs->get_menu(group)->popup (1, ev->time);
1233                 return true;
1234         }
1235
1236         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1237         case 0:
1238                 if (Keyboard::is_edit_event (ev)) {
1239                         if (group) {
1240                                 // edit_route_group (group);
1241 #ifdef GTKOSX
1242                                 group_display.queue_draw();
1243 #endif
1244                                 return true;
1245                         }
1246                 }
1247                 break;
1248
1249         case 1:
1250         {
1251                 bool visible = (*iter)[group_columns.visible];
1252                 (*iter)[group_columns.visible] = !visible;
1253 #ifdef GTKOSX
1254                 group_display.queue_draw();
1255 #endif
1256                 return true;
1257         }
1258
1259         default:
1260                 break;
1261         }
1262
1263         return false;
1264  }
1265
1266 void
1267 Mixer_UI::activate_all_route_groups ()
1268 {
1269         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1270 }
1271
1272 void
1273 Mixer_UI::disable_all_route_groups ()
1274 {
1275         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1276 }
1277
1278 void
1279 Mixer_UI::route_groups_changed ()
1280 {
1281         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1282
1283         _in_group_rebuild_or_clear = true;
1284
1285         /* just rebuild the while thing */
1286
1287         group_model->clear ();
1288
1289         {
1290                 TreeModel::Row row;
1291                 row = *(group_model->append());
1292                 row[group_columns.visible] = true;
1293                 row[group_columns.text] = (_("-all-"));
1294                 row[group_columns.group] = 0;
1295         }
1296
1297         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1298
1299         _group_tabs->set_dirty ();
1300         _in_group_rebuild_or_clear = false;
1301 }
1302
1303 void
1304 Mixer_UI::new_route_group ()
1305 {
1306         RouteList rl;
1307
1308         _group_tabs->run_new_group_dialog (rl);
1309 }
1310
1311 void
1312 Mixer_UI::remove_selected_route_group ()
1313 {
1314         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1315         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1316
1317         if (rows.empty()) {
1318                 return;
1319         }
1320
1321         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1322         TreeIter iter;
1323
1324         /* selection mode is single, so rows.begin() is it */
1325
1326         if ((iter = group_model->get_iter (*i))) {
1327
1328                 RouteGroup* rg = (*iter)[group_columns.group];
1329
1330                 if (rg) {
1331                         _session->remove_route_group (*rg);
1332                 }
1333         }
1334 }
1335
1336 void
1337 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1338 {
1339         if (in_group_row_change) {
1340                 return;
1341         }
1342
1343         /* force an update of any mixer strips that are using this group,
1344            otherwise mix group names don't change in mixer strips
1345         */
1346
1347         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1348                 if ((*i)->route_group() == group) {
1349                         (*i)->route_group_changed();
1350                 }
1351         }
1352
1353         TreeModel::iterator i;
1354         TreeModel::Children rows = group_model->children();
1355         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1356
1357         in_group_row_change = true;
1358
1359         for (i = rows.begin(); i != rows.end(); ++i) {
1360                 if ((*i)[group_columns.group] == group) {
1361                         (*i)[group_columns.visible] = !group->is_hidden ();
1362                         (*i)[group_columns.text] = group->name ();
1363                         break;
1364                 }
1365         }
1366
1367         in_group_row_change = false;
1368
1369         if (change.contains (Properties::name)) {
1370                 _group_tabs->set_dirty ();
1371         }
1372
1373         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1374                 if ((*j)->route_group() == group) {
1375                         if (group->is_hidden ()) {
1376                                 hide_strip (*j);
1377                         } else {
1378                                 show_strip (*j);
1379                         }
1380                 }
1381         }
1382 }
1383
1384 void
1385 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1386 {
1387         RouteGroup* group;
1388         TreeIter iter;
1389
1390         if ((iter = group_model->get_iter (path))) {
1391
1392                 if ((group = (*iter)[group_columns.group]) == 0) {
1393                         return;
1394                 }
1395
1396                 if (new_text != group->name()) {
1397                         group->set_name (new_text);
1398                 }
1399         }
1400 }
1401
1402 void
1403 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1404 {
1405         RouteGroup* group;
1406
1407         if (in_group_row_change) {
1408                 return;
1409         }
1410
1411         if ((group = (*iter)[group_columns.group]) == 0) {
1412                 return;
1413         }
1414
1415         std::string name = (*iter)[group_columns.text];
1416
1417         if (name != group->name()) {
1418                 group->set_name (name);
1419         }
1420
1421         bool hidden = !(*iter)[group_columns.visible];
1422
1423         if (hidden != group->is_hidden ()) {
1424                 group->set_hidden (hidden, this);
1425         }
1426 }
1427
1428 /** Called when a group model row is deleted, but also when the model is
1429  *  reordered by a user drag-and-drop; the latter is what we are
1430  *  interested in here.
1431  */
1432 void
1433 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1434 {
1435         if (_in_group_rebuild_or_clear) {
1436                 return;
1437         }
1438
1439         /* Re-write the session's route group list so that the new order is preserved */
1440
1441         list<RouteGroup*> new_list;
1442
1443         Gtk::TreeModel::Children children = group_model->children();
1444         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1445                 RouteGroup* g = (*i)[group_columns.group];
1446                 if (g) {
1447                         new_list.push_back (g);
1448                 }
1449         }
1450
1451         _session->reorder_route_groups (new_list);
1452 }
1453
1454
1455 void
1456 Mixer_UI::add_route_group (RouteGroup* group)
1457 {
1458         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1459         bool focus = false;
1460
1461         in_group_row_change = true;
1462
1463         TreeModel::Row row = *(group_model->append());
1464         row[group_columns.visible] = !group->is_hidden ();
1465         row[group_columns.group] = group;
1466         if (!group->name().empty()) {
1467                 row[group_columns.text] = group->name();
1468         } else {
1469                 row[group_columns.text] = _("unnamed");
1470                 focus = true;
1471         }
1472
1473         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1474
1475         if (focus) {
1476                 TreeViewColumn* col = group_display.get_column (0);
1477                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1478                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1479         }
1480
1481         _group_tabs->set_dirty ();
1482
1483         in_group_row_change = false;
1484 }
1485
1486 bool
1487 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1488 {
1489         using namespace Menu_Helpers;
1490
1491         if (Keyboard::is_context_menu_event (ev)) {
1492                 ARDOUR_UI::instance()->add_route (this);
1493                 return true;
1494         }
1495
1496         return false;
1497 }
1498
1499 void
1500 Mixer_UI::set_strip_width (Width w, bool save)
1501 {
1502         _strip_width = w;
1503
1504         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1505                 (*i)->set_width_enum (w, save ? (*i)->width_owner() : this);
1506         }
1507 }
1508
1509 void
1510 Mixer_UI::set_window_pos_and_size ()
1511 {
1512         resize (m_width, m_height);
1513         move (m_root_x, m_root_y);
1514 }
1515
1516         void
1517 Mixer_UI::get_window_pos_and_size ()
1518 {
1519         get_position(m_root_x, m_root_y);
1520         get_size(m_width, m_height);
1521 }
1522
1523 int
1524 Mixer_UI::set_state (const XMLNode& node)
1525 {
1526         const XMLProperty* prop;
1527         XMLNode* geometry;
1528
1529         m_width = default_width;
1530         m_height = default_height;
1531         m_root_x = 1;
1532         m_root_y = 1;
1533
1534         if ((geometry = find_named_node (node, "geometry")) != 0) {
1535
1536                 XMLProperty* prop;
1537
1538                 if ((prop = geometry->property("x_size")) == 0) {
1539                         prop = geometry->property ("x-size");
1540                 }
1541                 if (prop) {
1542                         m_width = atoi(prop->value());
1543                 }
1544                 if ((prop = geometry->property("y_size")) == 0) {
1545                         prop = geometry->property ("y-size");
1546                 }
1547                 if (prop) {
1548                         m_height = atoi(prop->value());
1549                 }
1550
1551                 if ((prop = geometry->property ("x_pos")) == 0) {
1552                         prop = geometry->property ("x-pos");
1553                 }
1554                 if (prop) {
1555                         m_root_x = atoi (prop->value());
1556
1557                 }
1558                 if ((prop = geometry->property ("y_pos")) == 0) {
1559                         prop = geometry->property ("y-pos");
1560                 }
1561                 if (prop) {
1562                         m_root_y = atoi (prop->value());
1563                 }
1564         }
1565
1566         set_window_pos_and_size ();
1567
1568         if ((prop = node.property ("narrow-strips"))) {
1569                 if (string_is_affirmative (prop->value())) {
1570                         set_strip_width (Narrow);
1571                 } else {
1572                         set_strip_width (Wide);
1573                 }
1574         }
1575
1576         if ((prop = node.property ("show-mixer"))) {
1577                 if (string_is_affirmative (prop->value())) {
1578                        _visible = true;
1579                 }
1580         }
1581
1582         if ((prop = node.property ("maximised"))) {
1583                 bool yn = string_is_affirmative (prop->value());
1584                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalMixer"));
1585                 assert (act);
1586                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
1587                 bool fs = tact && tact->get_active();
1588                 if (yn ^ fs) {
1589                         ActionManager::do_action ("Common",
1590                                         "ToggleMaximalMixer");
1591                 }
1592         }
1593
1594
1595         return 0;
1596 }
1597
1598 XMLNode&
1599 Mixer_UI::get_state (void)
1600 {
1601         XMLNode* node = new XMLNode ("Mixer");
1602
1603         if (is_realized()) {
1604                 Glib::RefPtr<Gdk::Window> win = get_window();
1605
1606                 get_window_pos_and_size ();
1607
1608                 XMLNode* geometry = new XMLNode ("geometry");
1609                 char buf[32];
1610                 snprintf(buf, sizeof(buf), "%d", m_width);
1611                 geometry->add_property(X_("x_size"), string(buf));
1612                 snprintf(buf, sizeof(buf), "%d", m_height);
1613                 geometry->add_property(X_("y_size"), string(buf));
1614                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1615                 geometry->add_property(X_("x_pos"), string(buf));
1616                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1617                 geometry->add_property(X_("y_pos"), string(buf));
1618
1619                 // written only for compatibility, they are not used.
1620                 snprintf(buf, sizeof(buf), "%d", 0);
1621                 geometry->add_property(X_("x_off"), string(buf));
1622                 snprintf(buf, sizeof(buf), "%d", 0);
1623                 geometry->add_property(X_("y_off"), string(buf));
1624
1625                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1626                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1627                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1628                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1629
1630                 node->add_child_nocopy (*geometry);
1631         }
1632
1633         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1634
1635         node->add_property ("show-mixer", _visible ? "yes" : "no");
1636
1637         node->add_property ("maximised", _maximised ? "yes" : "no");
1638
1639         return *node;
1640 }
1641
1642
1643 void
1644 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1645 {
1646         int pos;
1647         XMLProperty* prop = 0;
1648         char buf[32];
1649         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1650         XMLNode* geometry;
1651         int height;
1652         static int32_t done[3] = { 0, 0, 0 };
1653
1654         height = default_height;
1655
1656         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1657
1658                 if ((prop = geometry->property ("y_size")) == 0) {
1659                         prop = geometry->property ("y-size");
1660                 }
1661                 if (prop) {
1662                         height = atoi (prop->value());
1663                 }
1664         }
1665
1666         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1667
1668                 if (done[0]) {
1669                         return;
1670                 }
1671
1672                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1673                         pos = height / 3;
1674                         snprintf (buf, sizeof(buf), "%d", pos);
1675                 } else {
1676                         pos = atoi (prop->value());
1677                 }
1678
1679                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1680                         rhs_pane1.set_position (pos);
1681                 }
1682
1683         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1684
1685                 if (done[2]) {
1686                         return;
1687                 }
1688
1689                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1690                         pos = 75;
1691                         snprintf (buf, sizeof(buf), "%d", pos);
1692                 } else {
1693                         pos = atoi (prop->value());
1694                 }
1695
1696                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1697                         list_hpane.set_position (pos);
1698                 }
1699         }
1700 }
1701 void
1702 Mixer_UI::scroll_left ()
1703 {
1704         if (!scroller.get_hscrollbar()) return;
1705         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1706         /* stupid GTK: can't rely on clamping across versions */
1707         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1708 }
1709
1710 void
1711 Mixer_UI::scroll_right ()
1712 {
1713         if (!scroller.get_hscrollbar()) return;
1714         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1715         /* stupid GTK: can't rely on clamping across versions */
1716         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1717 }
1718
1719 bool
1720 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1721 {
1722         /* focus widget gets first shot, then bindings, otherwise
1723            forward to main window
1724         */
1725
1726         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1727                 return true;
1728         }
1729
1730         KeyboardKey k (ev->state, ev->keyval);
1731
1732         if (bindings.activate (k, Bindings::Press)) {
1733                 return true;
1734         }
1735
1736         return forward_key_press (ev);
1737 }
1738
1739 bool
1740 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1741 {
1742         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1743                 return true;
1744         }
1745
1746         KeyboardKey k (ev->state, ev->keyval);
1747
1748         if (bindings.activate (k, Bindings::Release)) {
1749                 return true;
1750         }
1751
1752         /* don't forward releases */
1753
1754         return true;
1755 }
1756
1757 bool
1758 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1759 {
1760         switch (ev->direction) {
1761         case GDK_SCROLL_LEFT:
1762                 scroll_left ();
1763                 return true;
1764         case GDK_SCROLL_UP:
1765                 if (ev->state & Keyboard::TertiaryModifier) {
1766                         scroll_left ();
1767                         return true;
1768                 }
1769                 return false;
1770
1771         case GDK_SCROLL_RIGHT:
1772                 scroll_right ();
1773                 return true;
1774
1775         case GDK_SCROLL_DOWN:
1776                 if (ev->state & Keyboard::TertiaryModifier) {
1777                         scroll_right ();
1778                         return true;
1779                 }
1780                 return false;
1781         }
1782
1783         return false;
1784 }
1785
1786
1787 void
1788 Mixer_UI::parameter_changed (string const & p)
1789 {
1790         if (p == "show-group-tabs") {
1791                 bool const s = _session->config.get_show_group_tabs ();
1792                 if (s) {
1793                         _group_tabs->show ();
1794                 } else {
1795                         _group_tabs->hide ();
1796                 }
1797         } else if (p == "default-narrow_ms") {
1798                 bool const s = Config->get_default_narrow_ms ();
1799                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1800                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1801                 }
1802         } else if (p == "remote-model") {
1803                 reset_remote_control_ids ();
1804         }
1805 }
1806
1807 void
1808 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1809 {
1810         g->set_active (a, this);
1811 }
1812
1813 PluginSelector*
1814 Mixer_UI::plugin_selector()
1815 {
1816 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1817         if (!_plugin_selector)
1818                 _plugin_selector = new PluginSelector (PluginManager::instance());
1819 #endif
1820
1821         return _plugin_selector;
1822 }
1823
1824 void
1825 Mixer_UI::setup_track_display ()
1826 {
1827         track_model = ListStore::create (track_columns);
1828         track_display.set_model (track_model);
1829         track_display.append_column (_("Strips"), track_columns.text);
1830         track_display.append_column (_("Show"), track_columns.visible);
1831         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1832         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1833         track_display.get_column (0)->set_expand(true);
1834         track_display.get_column (1)->set_expand(false);
1835         track_display.set_name (X_("EditGroupList"));
1836         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1837         track_display.set_reorderable (true);
1838         track_display.set_headers_visible (true);
1839
1840         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1841         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1842
1843         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1844         track_list_visible_cell->property_activatable() = true;
1845         track_list_visible_cell->property_radio() = false;
1846         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
1847
1848         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1849
1850         track_display_scroller.add (track_display);
1851         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1852
1853         VBox* v = manage (new VBox);
1854         v->show ();
1855         v->pack_start (track_display_scroller, true, true);
1856
1857         Button* b = manage (new Button);
1858         b->show ();
1859         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1860         w->show ();
1861         b->add (*w);
1862
1863         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1864
1865         v->pack_start (*b, false, false);
1866
1867         track_display_frame.set_name("BaseFrame");
1868         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1869         track_display_frame.add (*v);
1870
1871         track_display_scroller.show();
1872         track_display_frame.show();
1873         track_display.show();
1874 }
1875
1876 void
1877 Mixer_UI::new_track_or_bus ()
1878 {
1879         ARDOUR_UI::instance()->add_route (this);
1880 }
1881
1882
1883 void
1884 Mixer_UI::update_title ()
1885 {
1886         if (_session) {
1887                 string n;
1888
1889                 if (_session->snap_name() != _session->name()) {
1890                         n = _session->snap_name ();
1891                 } else {
1892                         n = _session->name ();
1893                 }
1894
1895                 if (_session->dirty ()) {
1896                         n = "*" + n;
1897                 }
1898
1899                 WindowTitle title (n);
1900                 title += S_("Window|Mixer");
1901                 title += Glib::get_application_name ();
1902                 set_title (title.get_string());
1903
1904         } else {
1905
1906                 WindowTitle title (S_("Window|Mixer"));
1907                 title += Glib::get_application_name ();
1908                 set_title (title.get_string());
1909         }
1910 }
1911
1912 MixerStrip*
1913 Mixer_UI::strip_by_x (int x)
1914 {
1915         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1916                 int x1, x2, y;
1917
1918                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1919                 x2 = x1 + (*i)->get_width();
1920
1921                 if (x >= x1 && x <= x2) {
1922                         return (*i);
1923                 }
1924         }
1925
1926         return 0;
1927 }
1928
1929 void
1930 Mixer_UI::set_route_targets_for_operation ()
1931 {
1932         _route_targets.clear ();
1933
1934         if (!_selection.empty()) {
1935                 _route_targets = _selection.routes;
1936                 return;
1937         }
1938
1939 //  removed "implicit" selections of strips, after discussion on IRC
1940
1941 }
1942
1943 void
1944 Mixer_UI::monitor_section_going_away ()
1945 {
1946         if (_monitor_section) {
1947                 out_packer.remove (_monitor_section->tearoff());
1948                 _monitor_section->set_session (0);
1949         }
1950 }
1951
1952 void
1953 Mixer_UI::toggle_midi_input_active (bool flip_others)
1954 {
1955         boost::shared_ptr<RouteList> rl (new RouteList);
1956         bool onoff = false;
1957
1958         set_route_targets_for_operation ();
1959
1960         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
1961                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
1962
1963                 if (mt) {
1964                         rl->push_back ((*r)->route());
1965                         onoff = !mt->input_active();
1966                 }
1967         }
1968
1969         _session->set_exclusive_input_active (rl, onoff, flip_others);
1970 }
1971
1972 void
1973 Mixer_UI::maximise_mixer_space ()
1974 {
1975         if (_maximised) {
1976                 return;
1977         }
1978
1979         fullscreen ();
1980
1981         _maximised = true;
1982 }
1983
1984 void
1985 Mixer_UI::restore_mixer_space ()
1986 {
1987         if (!_maximised) {
1988                 return;
1989         }
1990
1991         unfullscreen();
1992
1993         _maximised = false;
1994 }