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         , _visible (false)
  87         , no_track_list_redisplay (false)
  88         , in_group_row_change (false)
  89         , track_menu (0)
  90         , _monitor_section (0)
  91         , _strip_width (Config->get_default_narrow_ms() ? Narrow : Wide)
  92         , ignore_reorder (false)
  93         , _following_editor_selection (false)
  94 {
  95         /* allow this window to become the key focus window */
  96         set_flags (CAN_FOCUS);
  97
  98         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_order_keys, this, _1), gui_context());
  99
 100         scroller_base.set_flags (Gtk::CAN_FOCUS);
 101         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 102         scroller_base.set_name ("MixerWindow");
 103         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 104         // add as last item of strip packer
 105         strip_packer.pack_end (scroller_base, true, true);
 106
 107         _group_tabs = new MixerGroupTabs (this);
 108         VBox* b = manage (new VBox);
 109         b->pack_start (*_group_tabs, PACK_SHRINK);
 110         b->pack_start (strip_packer);
 111         b->show_all ();
 112
 113         scroller.add (*b);
 114         scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 115
 116         setup_track_display ();
 117
 118         group_model = ListStore::create (group_columns);
 119         group_display.set_model (group_model);
 120         group_display.append_column (_("Group"), group_columns.text);
 121         group_display.append_column (_("Show"), group_columns.visible);
 122         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 123         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 124         group_display.get_column (0)->set_expand(true);
 125         group_display.get_column (1)->set_expand(false);
 126         group_display.set_name ("EditGroupList");
 127         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 128         group_display.set_reorderable (true);
 129         group_display.set_headers_visible (true);
 130         group_display.set_rules_hint (true);
 131
 132         /* name is directly editable */
 133
 134         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 135         name_cell->property_editable() = true;
 136         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 137
 138         /* use checkbox for the active column */
 139
 140         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 141         active_cell->property_activatable() = true;
 142         active_cell->property_radio() = false;
 143
 144         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 145         /* We use this to notice drag-and-drop reorders of the group list */
 146         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 147         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 148
 149         group_display_scroller.add (group_display);
 150         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 151
 152         HBox* route_group_display_button_box = manage (new HBox());
 153
 154         Button* route_group_add_button = manage (new Button ());
 155         Button* route_group_remove_button = manage (new Button ());
 156
 157         Widget* w;
 158
 159         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 160         w->show();
 161         route_group_add_button->add (*w);
 162
 163         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 164         w->show();
 165         route_group_remove_button->add (*w);
 166
 167         route_group_display_button_box->set_homogeneous (true);
 168
 169         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 170         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 171
 172         route_group_display_button_box->add (*route_group_add_button);
 173         route_group_display_button_box->add (*route_group_remove_button);
 174
 175         group_display_vbox.pack_start (group_display_scroller, true, true);
 176         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 177
 178         group_display_frame.set_name ("BaseFrame");
 179         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 180         group_display_frame.add (group_display_vbox);
 181
 182         rhs_pane1.pack1 (track_display_frame);
 183         rhs_pane1.pack2 (group_display_frame);
 184
 185         list_vpacker.pack_start (rhs_pane1, true, true);
 186
 187         global_hpacker.pack_start (scroller, true, true);
 188 #ifdef GTKOSX
 189         /* current gtk-quartz has dirty updates on borders like this one */
 190         global_hpacker.pack_start (out_packer, false, false, 0);
 191 #else
 192         global_hpacker.pack_start (out_packer, false, false, 12);
 193 #endif
 194         list_hpane.pack1(list_vpacker, true, true);
 195         list_hpane.pack2(global_hpacker, true, false);
 196
 197         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 198                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 199         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 200                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 201
 202         global_vpacker.pack_start (list_hpane, true, true);
 203
 204         add (global_vpacker);
 205         set_name ("MixerWindow");
 206
 207         update_title ();
 208
 209         set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
 210
 211         signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
 212         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 213
 214         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 215
 216         route_group_display_button_box->show();
 217         route_group_add_button->show();
 218         route_group_remove_button->show();
 219
 220         global_hpacker.show();
 221         global_vpacker.show();
 222         scroller.show();
 223         scroller_base.show();
 224         scroller_hpacker.show();
 225         mixer_scroller_vpacker.show();
 226         list_vpacker.show();
 227         group_display_button_label.show();
 228         group_display_button.show();
 229         group_display_scroller.show();
 230         group_display_vbox.show();
 231         group_display_frame.show();
 232         rhs_pane1.show();
 233         strip_packer.show();
 234         out_packer.show();
 235         list_hpane.show();
 236         group_display.show();
 237
 238         _in_group_rebuild_or_clear = false;
 239
 240         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 241
 242         MonitorSection::setup_knob_images ();
 243
 244 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 245         _plugin_selector = new PluginSelector (PluginManager::instance ());
 246 #endif
 247 }
 248
 249 Mixer_UI::~Mixer_UI ()
 250 {
 251         if (_monitor_section) {
 252                 delete _monitor_section;
 253         }
 254 }
 255
 256 void
 257 Mixer_UI::track_editor_selection ()
 258 {
 259         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 260 }
 261
 262
 263 void
 264 Mixer_UI::ensure_float (Window& win)
 265 {
 266         win.set_transient_for (*this);
 267 }
 268
 269 void
 270 Mixer_UI::show_window ()
 271 {
 272         present ();
 273         if (!_visible) {
 274                 set_window_pos_and_size ();
 275
 276                 /* show/hide group tabs as required */
 277                 parameter_changed ("show-group-tabs");
 278
 279                 /* now reset each strips width so the right widgets are shown */
 280                 MixerStrip* ms;
 281
 282                 TreeModel::Children rows = track_model->children();
 283                 TreeModel::Children::iterator ri;
 284
 285                 for (ri = rows.begin(); ri != rows.end(); ++ri) {
 286                         ms = (*ri)[track_columns.strip];
 287                         ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 288                         /* Fix visibility of mixer strip stuff */
 289                         ms->parameter_changed (X_("mixer-strip-visibility"));
 290                 }
 291         }
 292
 293         /* force focus into main area */
 294         scroller_base.grab_focus ();
 295
 296         _visible = true;
 297 }
 298
 299 bool
 300 Mixer_UI::hide_window (GdkEventAny *ev)
 301 {
 302         get_window_pos_and_size ();
 303
 304         _visible = false;
 305         return just_hide_it(ev, static_cast<Gtk::Window *>(this));
 306 }
 307
 308
 309 void
 310 Mixer_UI::add_strips (RouteList& routes)
 311 {
 312         MixerStrip* strip;
 313
 314         try {
 315                 no_track_list_redisplay = true;
 316                 track_display.set_model (Glib::RefPtr<ListStore>());
 317
 318                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 319                         boost::shared_ptr<Route> route = (*x);
 320
 321                         if (route->is_hidden()) {
 322                                 continue;
 323                         }
 324
 325                         if (route->is_monitor()) {
 326
 327                                 if (!_monitor_section) {
 328                                         _monitor_section = new MonitorSection (_session);
 329
 330                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 331                                         if (mnode) {
 332                                                 _monitor_section->tearoff().set_state (*mnode);
 333                                         }
 334                                 }
 335
 336                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 337                                 _monitor_section->set_session (_session);
 338                                 _monitor_section->tearoff().show_all ();
 339
 340                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 341
 342                                 /* no regular strip shown for control out */
 343
 344                                 continue;
 345                         }
 346
 347                         strip = new MixerStrip (*this, _session, route);
 348                         strips.push_back (strip);
 349
 350                         Config->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 351
 352                         if (strip->width_owner() != strip) {
 353                                 strip->set_width_enum (_strip_width, this);
 354                         }
 355
 356                         show_strip (strip);
 357
 358                         TreeModel::Row row = *(track_model->append());
 359                         row[track_columns.text] = route->name();
 360                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 361                         row[track_columns.route] = route;
 362                         row[track_columns.strip] = strip;
 363
 364                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 365
 366                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 367                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 368                 }
 369
 370         } catch (...) {
 371         }
 372
 373         no_track_list_redisplay = false;
 374         track_display.set_model (track_model);
 375
 376         sync_order_keys_from_treeview ();
 377         redisplay_track_list ();
 378 }
 379
 380 void
 381 Mixer_UI::remove_strip (MixerStrip* strip)
 382 {
 383         if (_session && _session->deletion_in_progress()) {
 384                 /* its all being taken care of */
 385                 return;
 386         }
 387
 388         TreeModel::Children rows = track_model->children();
 389         TreeModel::Children::iterator ri;
 390         list<MixerStrip *>::iterator i;
 391
 392         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 393                 strips.erase (i);
 394         }
 395
 396         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 397                 if ((*ri)[track_columns.strip] == strip) {
 398                         track_model->erase (ri);
 399                         break;
 400                 }
 401         }
 402 }
 403
 404 void
 405 Mixer_UI::reset_remote_control_ids ()
 406 {
 407         if (Config->get_remote_model() != MixerOrdered || !_session || _session->deletion_in_progress()) {
 408                 return;
 409         }
 410
 411         TreeModel::Children rows = track_model->children();
 412
 413         if (rows.empty()) {
 414                 return;
 415         }
 416
 417         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 418
 419         TreeModel::Children::iterator ri;
 420         bool rid_change = false;
 421         uint32_t rid = 1;
 422         uint32_t invisible_key = UINT32_MAX;
 423
 424         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 425                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 426                 bool visible = (*ri)[track_columns.visible];
 427
 428                 if (!route->is_master() && !route->is_monitor()) {
 429
 430                         uint32_t new_rid = (visible ? rid : invisible_key--);
 431
 432                         if (new_rid != route->remote_control_id()) {
 433                                 route->set_remote_control_id_from_order_key (MixerSort, new_rid);
 434                                 rid_change = true;
 435                         }
 436
 437                         if (visible) {
 438                                 rid++;
 439                         }
 440                 }
 441         }
 442
 443         if (rid_change) {
 444                 /* tell the world that we changed the remote control IDs */
 445                 _session->notify_remote_id_change ();
 446         }
 447 }
 448
 449 void
 450 Mixer_UI::sync_order_keys_from_treeview ()
 451 {
 452         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 453                 return;
 454         }
 455
 456         TreeModel::Children rows = track_model->children();
 457
 458         if (rows.empty()) {
 459                 return;
 460         }
 461
 462         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 463
 464         TreeModel::Children::iterator ri;
 465         bool changed = false;
 466         bool rid_change = false;
 467         uint32_t order = 0;
 468         uint32_t rid = 1;
 469         uint32_t invisible_key = UINT32_MAX;
 470
 471         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 472                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 473                 bool visible = (*ri)[track_columns.visible];
 474
 475                 uint32_t old_key = route->order_key (MixerSort);
 476
 477                 if (order != old_key) {
 478                         route->set_order_key (MixerSort, order);
 479                         changed = true;
 480                 }
 481
 482                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 483
 484                         uint32_t new_rid = (visible ? rid : invisible_key--);
 485
 486                         if (new_rid != route->remote_control_id()) {
 487                                 route->set_remote_control_id_from_order_key (MixerSort, new_rid);
 488                                 rid_change = true;
 489                         }
 490
 491                         if (visible) {
 492                                 rid++;
 493                         }
 494
 495                 }
 496
 497                 ++order;
 498         }
 499
 500         if (changed) {
 501                 /* tell everyone that we changed the mixer sort keys */
 502                 _session->sync_order_keys (MixerSort);
 503         }
 504
 505         if (rid_change) {
 506                 /* tell the world that we changed the remote control IDs */
 507                 _session->notify_remote_id_change ();
 508         }
 509 }
 510
 511 void
 512 Mixer_UI::sync_treeview_from_order_keys (RouteSortOrderKey src)
 513 {
 514         if (!_session || _session->deletion_in_progress()) {
 515                 return;
 516         }
 517
 518         DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("mixer sync model from order keys, src = %1\n", enum_2_string (src)));
 519
 520         if (src == EditorSort) {
 521
 522                 if (!Config->get_sync_all_route_ordering()) {
 523                         /* editor sort keys changed - we don't care */
 524                         return;
 525                 }
 526
 527                 DEBUG_TRACE (DEBUG::OrderKeys, "reset mixer order key to match editor\n");
 528
 529                 /* editor sort keys were changed, update the mixer sort
 530                  * keys since "sync mixer+editor order" is enabled.
 531                  */
 532
 533                 boost::shared_ptr<RouteList> r = _session->get_routes ();
 534
 535                 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
 536                         (*i)->sync_order_keys (src);
 537                 }
 538         }
 539
 540         /* we could get here after either a change in the Mixer or Editor sort
 541          * order, but either way, the mixer order keys reflect the intended
 542          * order for the GUI, so reorder the treeview model to match it.
 543          */
 544
 545         vector<int> neworder;
 546         TreeModel::Children rows = track_model->children();
 547         uint32_t old_order = 0;
 548         bool changed = false;
 549
 550         if (rows.empty()) {
 551                 return;
 552         }
 553
 554         OrderKeySortedRoutes sorted_routes;
 555
 556         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 557                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 558                 sorted_routes.push_back (RoutePlusOrderKey (route, old_order, route->order_key (MixerSort)));
 559         }
 560
 561         SortByNewDisplayOrder cmp;
 562
 563         sort (sorted_routes.begin(), sorted_routes.end(), cmp);
 564         neworder.assign (sorted_routes.size(), 0);
 565
 566         uint32_t n = 0;
 567
 568         for (OrderKeySortedRoutes::iterator sr = sorted_routes.begin(); sr != sorted_routes.end(); ++sr, ++n) {
 569
 570                 neworder[n] = sr->old_display_order;
 571
 572                 if (sr->old_display_order != n) {
 573                         changed = true;
 574                 }
 575
 576                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order for %1 from %2 to %3\n",
 577                                                                sr->route->name(), sr->old_display_order, n));
 578         }
 579
 580         if (changed) {
 581                 Unwinder<bool> uw (ignore_reorder, true);
 582                 track_model->reorder (neworder);
 583         }
 584
 585         redisplay_track_list ();
 586 }
 587
 588 void
 589 Mixer_UI::follow_editor_selection ()
 590 {
 591         if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
 592                 return;
 593         }
 594
 595         _following_editor_selection = true;
 596         _selection.block_routes_changed (true);
 597
 598         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 599
 600         _selection.clear_routes ();
 601
 602         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 603                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 604                 if (rtav) {
 605                         MixerStrip* ms = strip_by_route (rtav->route());
 606                         if (ms) {
 607                                 _selection.add (ms);
 608                         }
 609                 }
 610         }
 611
 612         _following_editor_selection = false;
 613         _selection.block_routes_changed (false);
 614 }
 615
 616
 617 MixerStrip*
 618 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 619 {
 620         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 621                 if ((*i)->route() == r) {
 622                         return (*i);
 623                 }
 624         }
 625
 626         return 0;
 627 }
 628
 629 bool
 630 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 631 {
 632         if (ev->button == 1) {
 633                 if (_selection.selected (strip)) {
 634                         /* primary-click: toggle selection state of strip */
 635                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 636                                 _selection.remove (strip);
 637                         }
 638                 } else {
 639                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 640                                 _selection.add (strip);
 641                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 642
 643                                 if (!_selection.selected(strip)) {
 644
 645                                         /* extend selection */
 646
 647                                         vector<MixerStrip*> tmp;
 648                                         bool accumulate = false;
 649
 650                                         tmp.push_back (strip);
 651
 652                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 653                                                 if ((*i) == strip) {
 654                                                         /* hit clicked strip, start accumulating till we hit the first
 655                                                            selected strip
 656                                                         */
 657                                                         if (accumulate) {
 658                                                                 /* done */
 659                                                                 break;
 660                                                         } else {
 661                                                                 accumulate = true;
 662                                                         }
 663                                                 } else if (_selection.selected (*i)) {
 664                                                         /* hit selected strip. if currently accumulating others,
 665                                                            we're done. if not accumulating others, start doing so.
 666                                                         */
 667                                                         if (accumulate) {
 668                                                                 /* done */
 669                                                                 break;
 670                                                         } else {
 671                                                                 accumulate = true;
 672                                                         }
 673                                                 } else {
 674                                                         if (accumulate) {
 675                                                                 tmp.push_back (*i);
 676                                                         }
 677                                                 }
 678                                         }
 679
 680                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 681                                                 _selection.add (*i);
 682                                         }
 683                                 }
 684
 685                         } else {
 686                                 _selection.set (strip);
 687                         }
 688                 }
 689         }
 690
 691         return true;
 692 }
 693
 694 void
 695 Mixer_UI::set_session (Session* sess)
 696 {
 697         SessionHandlePtr::set_session (sess);
 698
 699         if (_plugin_selector) {
 700                 _plugin_selector->set_session (_session);
 701         }
 702
 703         _group_tabs->set_session (sess);
 704
 705         if (!_session) {
 706                 return;
 707         }
 708
 709         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 710         set_state (*node);
 711
 712         update_title ();
 713
 714         initial_track_display ();
 715
 716         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 717         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 718         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 719         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 720         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 721         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 722         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 723
 724         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 725
 726         route_groups_changed ();
 727
 728         if (_visible) {
 729                 show_window();
 730
 731                 /* Bit of a hack; if we're here, we're opening the mixer because of our
 732                    instant XML state having a show-mixer property.  Fix up the corresponding
 733                    action state.
 734                 */
 735                 ActionManager::check_toggleaction ("<Actions>/Common/toggle-mixer");
 736         }
 737
 738         start_updating ();
 739 }
 740
 741 void
 742 Mixer_UI::session_going_away ()
 743 {
 744         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 745
 746         _in_group_rebuild_or_clear = true;
 747         group_model->clear ();
 748         _in_group_rebuild_or_clear = false;
 749
 750         _selection.clear ();
 751         track_model->clear ();
 752
 753         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 754                 delete (*i);
 755         }
 756
 757         if (_monitor_section) {
 758                 _monitor_section->tearoff().hide_visible ();
 759         }
 760
 761         strips.clear ();
 762
 763         stop_updating ();
 764
 765         SessionHandlePtr::session_going_away ();
 766
 767         _session = 0;
 768         update_title ();
 769 }
 770
 771 void
 772 Mixer_UI::track_visibility_changed (std::string const & path)
 773 {
 774         if (_session && _session->deletion_in_progress()) {
 775                 return;
 776         }
 777
 778         TreeIter iter;
 779
 780         if ((iter = track_model->get_iter (path))) {
 781                 MixerStrip* strip = (*iter)[track_columns.strip];
 782                 if (strip) {
 783                         bool visible = (*iter)[track_columns.visible];
 784
 785                         if (strip->set_marked_for_display (!visible)) {
 786                                 update_track_visibility ();
 787                         }
 788                 }
 789         }
 790 }
 791
 792 void
 793 Mixer_UI::update_track_visibility ()
 794 {
 795         TreeModel::Children rows = track_model->children();
 796         TreeModel::Children::iterator i;
 797
 798         {
 799                 Unwinder<bool> uw (no_track_list_redisplay, true);
 800
 801                 for (i = rows.begin(); i != rows.end(); ++i) {
 802                         MixerStrip *strip = (*i)[track_columns.strip];
 803                         (*i)[track_columns.visible] = strip->marked_for_display ();
 804                 }
 805
 806                 /* force route order keys catch up with visibility changes
 807                  */
 808
 809                 sync_order_keys_from_treeview ();
 810         }
 811
 812         redisplay_track_list ();
 813 }
 814
 815 void
 816 Mixer_UI::show_strip (MixerStrip* ms)
 817 {
 818         TreeModel::Children rows = track_model->children();
 819         TreeModel::Children::iterator i;
 820
 821         for (i = rows.begin(); i != rows.end(); ++i) {
 822
 823                 MixerStrip* strip = (*i)[track_columns.strip];
 824                 if (strip == ms) {
 825                         (*i)[track_columns.visible] = true;
 826                         redisplay_track_list ();
 827                         break;
 828                 }
 829         }
 830 }
 831
 832 void
 833 Mixer_UI::hide_strip (MixerStrip* ms)
 834 {
 835         TreeModel::Children rows = track_model->children();
 836         TreeModel::Children::iterator i;
 837
 838         for (i = rows.begin(); i != rows.end(); ++i) {
 839
 840                 MixerStrip* strip = (*i)[track_columns.strip];
 841                 if (strip == ms) {
 842                         (*i)[track_columns.visible] = false;
 843                         redisplay_track_list ();
 844                         break;
 845                 }
 846         }
 847 }
 848
 849 gint
 850 Mixer_UI::start_updating ()
 851 {
 852     fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 853     return 0;
 854 }
 855
 856 gint
 857 Mixer_UI::stop_updating ()
 858 {
 859     fast_screen_update_connection.disconnect();
 860     return 0;
 861 }
 862
 863 void
 864 Mixer_UI::fast_update_strips ()
 865 {
 866         if (is_mapped () && _session) {
 867                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 868                         (*i)->fast_update ();
 869                 }
 870         }
 871 }
 872
 873 void
 874 Mixer_UI::set_all_strips_visibility (bool yn)
 875 {
 876         TreeModel::Children rows = track_model->children();
 877         TreeModel::Children::iterator i;
 878
 879         {
 880                 Unwinder<bool> uw (no_track_list_redisplay, true);
 881
 882                 for (i = rows.begin(); i != rows.end(); ++i) {
 883
 884                         TreeModel::Row row = (*i);
 885                         MixerStrip* strip = row[track_columns.strip];
 886
 887                         if (strip == 0) {
 888                                 continue;
 889                         }
 890
 891                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 892                                 continue;
 893                         }
 894
 895                         (*i)[track_columns.visible] = yn;
 896                 }
 897         }
 898
 899         redisplay_track_list ();
 900 }
 901
 902
 903 void
 904 Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
 905 {
 906         TreeModel::Children rows = track_model->children();
 907         TreeModel::Children::iterator i;
 908
 909         {
 910                 Unwinder<bool> uw (no_track_list_redisplay, true);
 911
 912                 for (i = rows.begin(); i != rows.end(); ++i) {
 913                         TreeModel::Row row = (*i);
 914                         MixerStrip* strip = row[track_columns.strip];
 915
 916                         if (strip == 0) {
 917                                 continue;
 918                         }
 919
 920                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 921                                 continue;
 922                         }
 923
 924                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
 925
 926                         switch (tracks) {
 927                         case 0:
 928                                 (*i)[track_columns.visible] = yn;
 929                                 break;
 930
 931                         case 1:
 932                                 if (at) { /* track */
 933                                         (*i)[track_columns.visible] = yn;
 934                                 }
 935                                 break;
 936
 937                         case 2:
 938                                 if (!at) { /* bus */
 939                                         (*i)[track_columns.visible] = yn;
 940                                 }
 941                                 break;
 942                         }
 943                 }
 944         }
 945
 946         redisplay_track_list ();
 947 }
 948
 949 void
 950 Mixer_UI::hide_all_routes ()
 951 {
 952         set_all_strips_visibility (false);
 953 }
 954
 955 void
 956 Mixer_UI::show_all_routes ()
 957 {
 958         set_all_strips_visibility (true);
 959 }
 960
 961 void
 962 Mixer_UI::show_all_audiobus ()
 963 {
 964         set_all_audio_visibility (2, true);
 965 }
 966 void
 967 Mixer_UI::hide_all_audiobus ()
 968 {
 969         set_all_audio_visibility (2, false);
 970 }
 971
 972 void
 973 Mixer_UI::show_all_audiotracks()
 974 {
 975         set_all_audio_visibility (1, true);
 976 }
 977 void
 978 Mixer_UI::hide_all_audiotracks ()
 979 {
 980         set_all_audio_visibility (1, false);
 981 }
 982
 983 void
 984 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
 985 {
 986         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
 987         sync_order_keys_from_treeview ();
 988 }
 989
 990 void
 991 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
 992 {
 993         /* this happens as the second step of a DnD within the treeview as well
 994            as when a row/route is actually deleted.
 995         */
 996         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
 997         sync_order_keys_from_treeview ();
 998 }
 999
1000 void
1001 Mixer_UI::redisplay_track_list ()
1002 {
1003         TreeModel::Children rows = track_model->children();
1004         TreeModel::Children::iterator i;
1005
1006         if (no_track_list_redisplay) {
1007                 return;
1008         }
1009
1010         for (i = rows.begin(); i != rows.end(); ++i) {
1011
1012                 MixerStrip* strip = (*i)[track_columns.strip];
1013
1014                 if (strip == 0) {
1015                         /* we're in the middle of changing a row, don't worry */
1016                         continue;
1017                 }
1018
1019                 bool const visible = (*i)[track_columns.visible];
1020
1021                 if (visible) {
1022                         strip->set_gui_property ("visible", true);
1023
1024                         if (strip->packed()) {
1025
1026                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1027                                         out_packer.reorder_child (*strip, -1);
1028
1029                                 } else {
1030                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1031                                 }
1032
1033                         } else {
1034
1035                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1036                                         out_packer.pack_start (*strip, false, false);
1037                                 } else {
1038                                         strip_packer.pack_start (*strip, false, false);
1039                                 }
1040                                 strip->set_packed (true);
1041                         }
1042
1043                 } else {
1044
1045                         strip->set_gui_property ("visible", false);
1046
1047                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1048                                 /* do nothing, these cannot be hidden */
1049                         } else {
1050                                 if (strip->packed()) {
1051                                         strip_packer.remove (*strip);
1052                                         strip->set_packed (false);
1053                                 }
1054                         }
1055                 }
1056         }
1057
1058         _group_tabs->set_dirty ();
1059 }
1060
1061 void
1062 Mixer_UI::strip_width_changed ()
1063 {
1064         _group_tabs->set_dirty ();
1065
1066 #ifdef GTKOSX
1067         TreeModel::Children rows = track_model->children();
1068         TreeModel::Children::iterator i;
1069         long order;
1070
1071         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1072                 MixerStrip* strip = (*i)[track_columns.strip];
1073
1074                 if (strip == 0) {
1075                         continue;
1076                 }
1077
1078                 bool visible = (*i)[track_columns.visible];
1079
1080                 if (visible) {
1081                         strip->queue_draw();
1082                 }
1083         }
1084 #endif
1085
1086 }
1087
1088 struct SignalOrderRouteSorter {
1089     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
1090             if (a->is_master() || a->is_monitor()) {
1091                     /* "a" is a special route (master, monitor, etc), and comes
1092                      * last in the mixer ordering
1093                      */
1094                     return false;
1095             } else if (b->is_master() || b->is_monitor()) {
1096                     /* everything comes before b */
1097                     return true;
1098             }
1099             return a->order_key (MixerSort) < b->order_key (MixerSort);
1100
1101     }
1102 };
1103
1104 void
1105 Mixer_UI::initial_track_display ()
1106 {
1107         boost::shared_ptr<RouteList> routes = _session->get_routes();
1108         RouteList copy (*routes);
1109         SignalOrderRouteSorter sorter;
1110
1111         copy.sort (sorter);
1112
1113         {
1114                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1115                 Unwinder<bool> uw2 (ignore_reorder, true);
1116
1117                 track_model->clear ();
1118                 add_strips (copy);
1119         }
1120
1121         _session->sync_order_keys (MixerSort);
1122
1123         redisplay_track_list ();
1124 }
1125
1126 void
1127 Mixer_UI::show_track_list_menu ()
1128 {
1129         if (track_menu == 0) {
1130                 build_track_menu ();
1131         }
1132
1133         track_menu->popup (1, gtk_get_current_event_time());
1134 }
1135
1136 bool
1137 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1138 {
1139         if (Keyboard::is_context_menu_event (ev)) {
1140                 show_track_list_menu ();
1141                 return true;
1142         }
1143
1144         return false;
1145 }
1146
1147 void
1148 Mixer_UI::build_track_menu ()
1149 {
1150         using namespace Menu_Helpers;
1151         using namespace Gtk;
1152
1153         track_menu = new Menu;
1154         track_menu->set_name ("ArdourContextMenu");
1155         MenuList& items = track_menu->items();
1156
1157         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1158         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1159         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1160         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1161         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1162         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1163
1164 }
1165
1166 void
1167 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1168 {
1169         if (!what_changed.contains (ARDOUR::Properties::name)) {
1170                 return;
1171         }
1172
1173         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1174
1175         TreeModel::Children rows = track_model->children();
1176         TreeModel::Children::iterator i;
1177
1178         for (i = rows.begin(); i != rows.end(); ++i) {
1179                 if ((*i)[track_columns.strip] == mx) {
1180                         (*i)[track_columns.text] = mx->route()->name();
1181                         return;
1182                 }
1183         }
1184
1185         error << _("track display list item for renamed strip not found!") << endmsg;
1186 }
1187
1188 bool
1189 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1190 {
1191         TreeModel::Path path;
1192         TreeViewColumn* column;
1193         int cellx;
1194         int celly;
1195
1196         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1197                 return false;
1198         }
1199
1200         TreeIter iter = group_model->get_iter (path);
1201         if (!iter) {
1202                 return false;
1203         }
1204
1205         RouteGroup* group = (*iter)[group_columns.group];
1206
1207         if (Keyboard::is_context_menu_event (ev)) {
1208                 _group_tabs->get_menu(group)->popup (1, ev->time);
1209                 return true;
1210         }
1211
1212         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1213         case 0:
1214                 if (Keyboard::is_edit_event (ev)) {
1215                         if (group) {
1216                                 // edit_route_group (group);
1217 #ifdef GTKOSX
1218                                 group_display.queue_draw();
1219 #endif
1220                                 return true;
1221                         }
1222                 }
1223                 break;
1224
1225         case 1:
1226         {
1227                 bool visible = (*iter)[group_columns.visible];
1228                 (*iter)[group_columns.visible] = !visible;
1229 #ifdef GTKOSX
1230                 group_display.queue_draw();
1231 #endif
1232                 return true;
1233         }
1234
1235         default:
1236                 break;
1237         }
1238
1239         return false;
1240  }
1241
1242 void
1243 Mixer_UI::activate_all_route_groups ()
1244 {
1245         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1246 }
1247
1248 void
1249 Mixer_UI::disable_all_route_groups ()
1250 {
1251         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1252 }
1253
1254 void
1255 Mixer_UI::route_groups_changed ()
1256 {
1257         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1258
1259         _in_group_rebuild_or_clear = true;
1260
1261         /* just rebuild the while thing */
1262
1263         group_model->clear ();
1264
1265         {
1266                 TreeModel::Row row;
1267                 row = *(group_model->append());
1268                 row[group_columns.visible] = true;
1269                 row[group_columns.text] = (_("-all-"));
1270                 row[group_columns.group] = 0;
1271         }
1272
1273         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1274
1275         _group_tabs->set_dirty ();
1276         _in_group_rebuild_or_clear = false;
1277 }
1278
1279 void
1280 Mixer_UI::new_route_group ()
1281 {
1282         RouteList rl;
1283
1284         _group_tabs->run_new_group_dialog (rl);
1285 }
1286
1287 void
1288 Mixer_UI::remove_selected_route_group ()
1289 {
1290         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1291         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1292
1293         if (rows.empty()) {
1294                 return;
1295         }
1296
1297         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1298         TreeIter iter;
1299
1300         /* selection mode is single, so rows.begin() is it */
1301
1302         if ((iter = group_model->get_iter (*i))) {
1303
1304                 RouteGroup* rg = (*iter)[group_columns.group];
1305
1306                 if (rg) {
1307                         _session->remove_route_group (*rg);
1308                 }
1309         }
1310 }
1311
1312 void
1313 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1314 {
1315         if (in_group_row_change) {
1316                 return;
1317         }
1318
1319         /* force an update of any mixer strips that are using this group,
1320            otherwise mix group names don't change in mixer strips
1321         */
1322
1323         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1324                 if ((*i)->route_group() == group) {
1325                         (*i)->route_group_changed();
1326                 }
1327         }
1328
1329         TreeModel::iterator i;
1330         TreeModel::Children rows = group_model->children();
1331         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1332
1333         in_group_row_change = true;
1334
1335         for (i = rows.begin(); i != rows.end(); ++i) {
1336                 if ((*i)[group_columns.group] == group) {
1337                         (*i)[group_columns.visible] = !group->is_hidden ();
1338                         (*i)[group_columns.text] = group->name ();
1339                         break;
1340                 }
1341         }
1342
1343         in_group_row_change = false;
1344
1345         if (change.contains (Properties::name)) {
1346                 _group_tabs->set_dirty ();
1347         }
1348
1349         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1350                 if ((*j)->route_group() == group) {
1351                         if (group->is_hidden ()) {
1352                                 hide_strip (*j);
1353                         } else {
1354                                 show_strip (*j);
1355                         }
1356                 }
1357         }
1358 }
1359
1360 void
1361 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1362 {
1363         RouteGroup* group;
1364         TreeIter iter;
1365
1366         if ((iter = group_model->get_iter (path))) {
1367
1368                 if ((group = (*iter)[group_columns.group]) == 0) {
1369                         return;
1370                 }
1371
1372                 if (new_text != group->name()) {
1373                         group->set_name (new_text);
1374                 }
1375         }
1376 }
1377
1378 void
1379 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1380 {
1381         RouteGroup* group;
1382
1383         if (in_group_row_change) {
1384                 return;
1385         }
1386
1387         if ((group = (*iter)[group_columns.group]) == 0) {
1388                 return;
1389         }
1390
1391         std::string name = (*iter)[group_columns.text];
1392
1393         if (name != group->name()) {
1394                 group->set_name (name);
1395         }
1396
1397         bool hidden = !(*iter)[group_columns.visible];
1398
1399         if (hidden != group->is_hidden ()) {
1400                 group->set_hidden (hidden, this);
1401         }
1402 }
1403
1404 /** Called when a group model row is deleted, but also when the model is
1405  *  reordered by a user drag-and-drop; the latter is what we are
1406  *  interested in here.
1407  */
1408 void
1409 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1410 {
1411         if (_in_group_rebuild_or_clear) {
1412                 return;
1413         }
1414
1415         /* Re-write the session's route group list so that the new order is preserved */
1416
1417         list<RouteGroup*> new_list;
1418
1419         Gtk::TreeModel::Children children = group_model->children();
1420         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1421                 RouteGroup* g = (*i)[group_columns.group];
1422                 if (g) {
1423                         new_list.push_back (g);
1424                 }
1425         }
1426
1427         _session->reorder_route_groups (new_list);
1428 }
1429
1430
1431 void
1432 Mixer_UI::add_route_group (RouteGroup* group)
1433 {
1434         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1435         bool focus = false;
1436
1437         in_group_row_change = true;
1438
1439         TreeModel::Row row = *(group_model->append());
1440         row[group_columns.visible] = !group->is_hidden ();
1441         row[group_columns.group] = group;
1442         if (!group->name().empty()) {
1443                 row[group_columns.text] = group->name();
1444         } else {
1445                 row[group_columns.text] = _("unnamed");
1446                 focus = true;
1447         }
1448
1449         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1450
1451         if (focus) {
1452                 TreeViewColumn* col = group_display.get_column (0);
1453                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1454                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1455         }
1456
1457         _group_tabs->set_dirty ();
1458
1459         in_group_row_change = false;
1460 }
1461
1462 bool
1463 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1464 {
1465         using namespace Menu_Helpers;
1466
1467         if (Keyboard::is_context_menu_event (ev)) {
1468                 ARDOUR_UI::instance()->add_route (this);
1469                 return true;
1470         }
1471
1472         return false;
1473 }
1474
1475 void
1476 Mixer_UI::set_strip_width (Width w)
1477 {
1478         _strip_width = w;
1479
1480         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1481                 (*i)->set_width_enum (w, this);
1482         }
1483 }
1484
1485 void
1486 Mixer_UI::set_window_pos_and_size ()
1487 {
1488         resize (m_width, m_height);
1489         move (m_root_x, m_root_y);
1490 }
1491
1492         void
1493 Mixer_UI::get_window_pos_and_size ()
1494 {
1495         get_position(m_root_x, m_root_y);
1496         get_size(m_width, m_height);
1497 }
1498
1499 int
1500 Mixer_UI::set_state (const XMLNode& node)
1501 {
1502         const XMLProperty* prop;
1503         XMLNode* geometry;
1504
1505         m_width = default_width;
1506         m_height = default_height;
1507         m_root_x = 1;
1508         m_root_y = 1;
1509
1510         if ((geometry = find_named_node (node, "geometry")) != 0) {
1511
1512                 XMLProperty* prop;
1513
1514                 if ((prop = geometry->property("x_size")) == 0) {
1515                         prop = geometry->property ("x-size");
1516                 }
1517                 if (prop) {
1518                         m_width = atoi(prop->value());
1519                 }
1520                 if ((prop = geometry->property("y_size")) == 0) {
1521                         prop = geometry->property ("y-size");
1522                 }
1523                 if (prop) {
1524                         m_height = atoi(prop->value());
1525                 }
1526
1527                 if ((prop = geometry->property ("x_pos")) == 0) {
1528                         prop = geometry->property ("x-pos");
1529                 }
1530                 if (prop) {
1531                         m_root_x = atoi (prop->value());
1532
1533                 }
1534                 if ((prop = geometry->property ("y_pos")) == 0) {
1535                         prop = geometry->property ("y-pos");
1536                 }
1537                 if (prop) {
1538                         m_root_y = atoi (prop->value());
1539                 }
1540         }
1541
1542         set_window_pos_and_size ();
1543
1544         if ((prop = node.property ("narrow-strips"))) {
1545                 if (string_is_affirmative (prop->value())) {
1546                         set_strip_width (Narrow);
1547                 } else {
1548                         set_strip_width (Wide);
1549                 }
1550         }
1551
1552         if ((prop = node.property ("show-mixer"))) {
1553                 if (string_is_affirmative (prop->value())) {
1554                        _visible = true;
1555                 }
1556         }
1557
1558         return 0;
1559 }
1560
1561 XMLNode&
1562 Mixer_UI::get_state (void)
1563 {
1564         XMLNode* node = new XMLNode ("Mixer");
1565
1566         if (is_realized()) {
1567                 Glib::RefPtr<Gdk::Window> win = get_window();
1568
1569                 get_window_pos_and_size ();
1570
1571                 XMLNode* geometry = new XMLNode ("geometry");
1572                 char buf[32];
1573                 snprintf(buf, sizeof(buf), "%d", m_width);
1574                 geometry->add_property(X_("x_size"), string(buf));
1575                 snprintf(buf, sizeof(buf), "%d", m_height);
1576                 geometry->add_property(X_("y_size"), string(buf));
1577                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1578                 geometry->add_property(X_("x_pos"), string(buf));
1579                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1580                 geometry->add_property(X_("y_pos"), string(buf));
1581
1582                 // written only for compatibility, they are not used.
1583                 snprintf(buf, sizeof(buf), "%d", 0);
1584                 geometry->add_property(X_("x_off"), string(buf));
1585                 snprintf(buf, sizeof(buf), "%d", 0);
1586                 geometry->add_property(X_("y_off"), string(buf));
1587
1588                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1589                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1590                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1591                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1592
1593                 node->add_child_nocopy (*geometry);
1594         }
1595
1596         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1597
1598         node->add_property ("show-mixer", _visible ? "yes" : "no");
1599
1600         return *node;
1601 }
1602
1603
1604 void
1605 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1606 {
1607         int pos;
1608         XMLProperty* prop = 0;
1609         char buf[32];
1610         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1611         XMLNode* geometry;
1612         int height;
1613         static int32_t done[3] = { 0, 0, 0 };
1614
1615         height = default_height;
1616
1617         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1618
1619                 if ((prop = geometry->property ("y_size")) == 0) {
1620                         prop = geometry->property ("y-size");
1621                 }
1622                 if (prop) {
1623                         height = atoi (prop->value());
1624                 }
1625         }
1626
1627         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1628
1629                 if (done[0]) {
1630                         return;
1631                 }
1632
1633                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1634                         pos = height / 3;
1635                         snprintf (buf, sizeof(buf), "%d", pos);
1636                 } else {
1637                         pos = atoi (prop->value());
1638                 }
1639
1640                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1641                         rhs_pane1.set_position (pos);
1642                 }
1643
1644         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1645
1646                 if (done[2]) {
1647                         return;
1648                 }
1649
1650                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1651                         pos = 75;
1652                         snprintf (buf, sizeof(buf), "%d", pos);
1653                 } else {
1654                         pos = atoi (prop->value());
1655                 }
1656
1657                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1658                         list_hpane.set_position (pos);
1659                 }
1660         }
1661 }
1662 void
1663 Mixer_UI::scroll_left ()
1664 {
1665         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1666         /* stupid GTK: can't rely on clamping across versions */
1667         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1668 }
1669
1670 void
1671 Mixer_UI::scroll_right ()
1672 {
1673         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1674         /* stupid GTK: can't rely on clamping across versions */
1675         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1676 }
1677
1678 bool
1679 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1680 {
1681         /* focus widget gets first shot, then bindings, otherwise
1682            forward to main window
1683         */
1684
1685         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1686                 return true;
1687         }
1688
1689         KeyboardKey k (ev->state, ev->keyval);
1690
1691         if (bindings.activate (k, Bindings::Press)) {
1692                 return true;
1693         }
1694
1695         return forward_key_press (ev);
1696 }
1697
1698 bool
1699 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1700 {
1701         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1702                 return true;
1703         }
1704
1705         KeyboardKey k (ev->state, ev->keyval);
1706
1707         if (bindings.activate (k, Bindings::Release)) {
1708                 return true;
1709         }
1710
1711         /* don't forward releases */
1712
1713         return true;
1714 }
1715
1716 bool
1717 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1718 {
1719         switch (ev->direction) {
1720         case GDK_SCROLL_LEFT:
1721                 scroll_left ();
1722                 return true;
1723         case GDK_SCROLL_UP:
1724                 if (ev->state & Keyboard::TertiaryModifier) {
1725                         scroll_left ();
1726                         return true;
1727                 }
1728                 return false;
1729
1730         case GDK_SCROLL_RIGHT:
1731                 scroll_right ();
1732                 return true;
1733
1734         case GDK_SCROLL_DOWN:
1735                 if (ev->state & Keyboard::TertiaryModifier) {
1736                         scroll_right ();
1737                         return true;
1738                 }
1739                 return false;
1740         }
1741
1742         return false;
1743 }
1744
1745
1746 void
1747 Mixer_UI::parameter_changed (string const & p)
1748 {
1749         if (p == "show-group-tabs") {
1750                 bool const s = _session->config.get_show_group_tabs ();
1751                 if (s) {
1752                         _group_tabs->show ();
1753                 } else {
1754                         _group_tabs->hide ();
1755                 }
1756         } else if (p == "default-narrow_ms") {
1757                 bool const s = Config->get_default_narrow_ms ();
1758                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1759                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1760                 }
1761         } else if (p == "remote-model") {
1762                 reset_remote_control_ids ();
1763         }
1764 }
1765
1766 void
1767 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1768 {
1769         g->set_active (a, this);
1770 }
1771
1772 PluginSelector*
1773 Mixer_UI::plugin_selector()
1774 {
1775 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1776         if (!_plugin_selector)
1777                 _plugin_selector = new PluginSelector (PluginManager::instance());
1778 #endif
1779
1780         return _plugin_selector;
1781 }
1782
1783 void
1784 Mixer_UI::setup_track_display ()
1785 {
1786         track_model = ListStore::create (track_columns);
1787         track_display.set_model (track_model);
1788         track_display.append_column (_("Strips"), track_columns.text);
1789         track_display.append_column (_("Show"), track_columns.visible);
1790         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1791         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1792         track_display.get_column (0)->set_expand(true);
1793         track_display.get_column (1)->set_expand(false);
1794         track_display.set_name (X_("EditGroupList"));
1795         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1796         track_display.set_reorderable (true);
1797         track_display.set_headers_visible (true);
1798
1799         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1800         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1801
1802         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1803         track_list_visible_cell->property_activatable() = true;
1804         track_list_visible_cell->property_radio() = false;
1805         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
1806
1807         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1808
1809         track_display_scroller.add (track_display);
1810         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1811
1812         VBox* v = manage (new VBox);
1813         v->show ();
1814         v->pack_start (track_display_scroller, true, true);
1815
1816         Button* b = manage (new Button);
1817         b->show ();
1818         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1819         w->show ();
1820         b->add (*w);
1821
1822         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1823
1824         v->pack_start (*b, false, false);
1825
1826         track_display_frame.set_name("BaseFrame");
1827         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1828         track_display_frame.add (*v);
1829
1830         track_display_scroller.show();
1831         track_display_frame.show();
1832         track_display.show();
1833 }
1834
1835 void
1836 Mixer_UI::new_track_or_bus ()
1837 {
1838         ARDOUR_UI::instance()->add_route (this);
1839 }
1840
1841
1842 void
1843 Mixer_UI::update_title ()
1844 {
1845         if (_session) {
1846                 string n;
1847
1848                 if (_session->snap_name() != _session->name()) {
1849                         n = _session->snap_name ();
1850                 } else {
1851                         n = _session->name ();
1852                 }
1853
1854                 if (_session->dirty ()) {
1855                         n = "*" + n;
1856                 }
1857
1858                 WindowTitle title (n);
1859                 title += S_("Window|Mixer");
1860                 title += Glib::get_application_name ();
1861                 set_title (title.get_string());
1862
1863         } else {
1864
1865                 WindowTitle title (S_("Window|Mixer"));
1866                 title += Glib::get_application_name ();
1867                 set_title (title.get_string());
1868         }
1869 }
1870
1871 MixerStrip*
1872 Mixer_UI::strip_by_x (int x)
1873 {
1874         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1875                 int x1, x2, y;
1876
1877                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1878                 x2 = x1 + (*i)->get_width();
1879
1880                 if (x >= x1 && x <= x2) {
1881                         return (*i);
1882                 }
1883         }
1884
1885         return 0;
1886 }
1887
1888 void
1889 Mixer_UI::set_route_targets_for_operation ()
1890 {
1891         _route_targets.clear ();
1892
1893         if (!_selection.empty()) {
1894                 _route_targets = _selection.routes;
1895                 return;
1896         }
1897
1898         /* nothing selected ... try to get mixer strip at mouse */
1899
1900         int x, y;
1901         get_pointer (x, y);
1902
1903         MixerStrip* ms = strip_by_x (x);
1904
1905         if (ms) {
1906                 _route_targets.insert (ms);
1907         }
1908 }
1909
1910 void
1911 Mixer_UI::monitor_section_going_away ()
1912 {
1913         if (_monitor_section) {
1914                 out_packer.remove (_monitor_section->tearoff());
1915                 _monitor_section->set_session (0);
1916         }
1917 }
1918
1919 void
1920 Mixer_UI::toggle_midi_input_active (bool flip_others)
1921 {
1922         boost::shared_ptr<RouteList> rl (new RouteList);
1923         bool onoff;
1924
1925         set_route_targets_for_operation ();
1926
1927         for (RouteUISelection::iterator r = _route_targets.begin(); r != _route_targets.end(); ++r) {
1928                 boost::shared_ptr<MidiTrack> mt = (*r)->midi_track();
1929
1930                 if (mt) {
1931                         rl->push_back ((*r)->route());
1932                         onoff = !mt->input_active();
1933                 }
1934         }
1935
1936         _session->set_exclusive_input_active (rl, onoff, flip_others);
1937 }