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/plugin_manager.h"
  42 #include "ardour/route_group.h"
  43 #include "ardour/session.h"
  44
  45 #include "keyboard.h"
  46 #include "mixer_ui.h"
  47 #include "mixer_strip.h"
  48 #include "monitor_section.h"
  49 #include "plugin_selector.h"
  50 #include "public_editor.h"
  51 #include "ardour_ui.h"
  52 #include "prompter.h"
  53 #include "utils.h"
  54 #include "actions.h"
  55 #include "gui_thread.h"
  56 #include "mixer_group_tabs.h"
  57
  58 #include "i18n.h"
  59
  60 using namespace ARDOUR;
  61 using namespace PBD;
  62 using namespace Gtk;
  63 using namespace Glib;
  64 using namespace Gtkmm2ext;
  65 using namespace std;
  66
  67 using PBD::atoi;
  68 using PBD::Unwinder;
  69
  70 Mixer_UI* Mixer_UI::_instance = 0;
  71
  72 Mixer_UI*
  73 Mixer_UI::instance ()
  74 {
  75         if (!_instance) {
  76                 _instance  = new Mixer_UI;
  77         }
  78
  79         return _instance;
  80 }
  81
  82 Mixer_UI::Mixer_UI ()
  83         : Window (Gtk::WINDOW_TOPLEVEL)
  84         , _visible (false)
  85         , no_track_list_redisplay (false)
  86         , in_group_row_change (false)
  87         , track_menu (0)
  88         , _monitor_section (0)
  89         , _strip_width (Config->get_default_narrow_ms() ? Narrow : Wide)
  90         , ignore_reorder (false)
  91         , _following_editor_selection (false)
  92 {
  93         /* allow this window to become the key focus window */
  94         set_flags (CAN_FOCUS);
  95
  96         Route::SyncOrderKeys.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::sync_treeview_from_order_keys, this, _1), gui_context());
  97
  98         scroller_base.set_flags (Gtk::CAN_FOCUS);
  99         scroller_base.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 100         scroller_base.set_name ("MixerWindow");
 101         scroller_base.signal_button_release_event().connect (sigc::mem_fun(*this, &Mixer_UI::strip_scroller_button_release));
 102         // add as last item of strip packer
 103         strip_packer.pack_end (scroller_base, true, true);
 104
 105         _group_tabs = new MixerGroupTabs (this);
 106         VBox* b = manage (new VBox);
 107         b->pack_start (*_group_tabs, PACK_SHRINK);
 108         b->pack_start (strip_packer);
 109         b->show_all ();
 110
 111         scroller.add (*b);
 112         scroller.set_policy (Gtk::POLICY_AUTOMATIC, Gtk::POLICY_AUTOMATIC);
 113
 114         setup_track_display ();
 115
 116         group_model = ListStore::create (group_columns);
 117         group_display.set_model (group_model);
 118         group_display.append_column (_("Group"), group_columns.text);
 119         group_display.append_column (_("Show"), group_columns.visible);
 120         group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 121         group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 122         group_display.get_column (0)->set_expand(true);
 123         group_display.get_column (1)->set_expand(false);
 124         group_display.set_name ("LHSList");
 125         group_display.get_selection()->set_mode (Gtk::SELECTION_SINGLE);
 126         group_display.set_reorderable (true);
 127         group_display.set_headers_visible (true);
 128         group_display.set_rules_hint (true);
 129
 130         /* name is directly editable */
 131
 132         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
 133         name_cell->property_editable() = true;
 134         name_cell->signal_edited().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_name_edit));
 135
 136         /* use checkbox for the active column */
 137
 138         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(group_display.get_column_cell_renderer (1));
 139         active_cell->property_activatable() = true;
 140         active_cell->property_radio() = false;
 141
 142         group_model->signal_row_changed().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_change));
 143         /* We use this to notice drag-and-drop reorders of the group list */
 144         group_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::route_group_row_deleted));
 145         group_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::group_display_button_press), false);
 146
 147         group_display_scroller.add (group_display);
 148         group_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 149
 150         HBox* route_group_display_button_box = manage (new HBox());
 151
 152         Button* route_group_add_button = manage (new Button ());
 153         Button* route_group_remove_button = manage (new Button ());
 154
 155         Widget* w;
 156
 157         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 158         w->show();
 159         route_group_add_button->add (*w);
 160
 161         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 162         w->show();
 163         route_group_remove_button->add (*w);
 164
 165         route_group_display_button_box->set_homogeneous (true);
 166
 167         route_group_add_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_route_group));
 168         route_group_remove_button->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::remove_selected_route_group));
 169
 170         route_group_display_button_box->add (*route_group_add_button);
 171         route_group_display_button_box->add (*route_group_remove_button);
 172
 173         group_display_vbox.pack_start (group_display_scroller, true, true);
 174         group_display_vbox.pack_start (*route_group_display_button_box, false, false);
 175
 176         group_display_frame.set_name ("BaseFrame");
 177         group_display_frame.set_shadow_type (Gtk::SHADOW_IN);
 178         group_display_frame.add (group_display_vbox);
 179
 180         rhs_pane1.pack1 (track_display_frame);
 181         rhs_pane1.pack2 (group_display_frame);
 182
 183         list_vpacker.pack_start (rhs_pane1, true, true);
 184
 185         global_hpacker.pack_start (scroller, true, true);
 186 #ifdef GTKOSX
 187         /* current gtk-quartz has dirty updates on borders like this one */
 188         global_hpacker.pack_start (out_packer, false, false, 0);
 189 #else
 190         global_hpacker.pack_start (out_packer, false, false, 12);
 191 #endif
 192         list_hpane.pack1(list_vpacker, true, true);
 193         list_hpane.pack2(global_hpacker, true, false);
 194
 195         rhs_pane1.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 196                                                         static_cast<Gtk::Paned*> (&rhs_pane1)));
 197         list_hpane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::pane_allocation_handler),
 198                                                          static_cast<Gtk::Paned*> (&list_hpane)));
 199
 200         global_vpacker.pack_start (list_hpane, true, true);
 201
 202         add (global_vpacker);
 203         set_name ("MixerWindow");
 204
 205         update_title ();
 206
 207         set_wmclass (X_("ardour_mixer"), PROGRAM_NAME);
 208
 209         signal_delete_event().connect (sigc::mem_fun (*this, &Mixer_UI::hide_window));
 210         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 211
 212         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 213
 214         route_group_display_button_box->show();
 215         route_group_add_button->show();
 216         route_group_remove_button->show();
 217
 218         global_hpacker.show();
 219         global_vpacker.show();
 220         scroller.show();
 221         scroller_base.show();
 222         scroller_hpacker.show();
 223         mixer_scroller_vpacker.show();
 224         list_vpacker.show();
 225         group_display_button_label.show();
 226         group_display_button.show();
 227         group_display_scroller.show();
 228         group_display_vbox.show();
 229         group_display_frame.show();
 230         rhs_pane1.show();
 231         strip_packer.show();
 232         out_packer.show();
 233         list_hpane.show();
 234         group_display.show();
 235
 236         _in_group_rebuild_or_clear = false;
 237
 238         MixerStrip::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::remove_strip, this, _1), gui_context());
 239
 240         MonitorSection::setup_knob_images ();
 241
 242 #ifndef DEFER_PLUGIN_SELECTOR_LOAD
 243         _plugin_selector = new PluginSelector (PluginManager::instance ());
 244 #endif
 245 }
 246
 247 Mixer_UI::~Mixer_UI ()
 248 {
 249         if (_monitor_section) {
 250                 delete _monitor_section;
 251         }
 252 }
 253
 254 void
 255 Mixer_UI::track_editor_selection ()
 256 {
 257         PublicEditor::instance().get_selection().TracksChanged.connect (sigc::mem_fun (*this, &Mixer_UI::follow_editor_selection));
 258 }
 259
 260
 261 void
 262 Mixer_UI::ensure_float (Window& win)
 263 {
 264         win.set_transient_for (*this);
 265 }
 266
 267 void
 268 Mixer_UI::show_window ()
 269 {
 270         present ();
 271         if (!_visible) {
 272                 set_window_pos_and_size ();
 273
 274                 /* show/hide group tabs as required */
 275                 parameter_changed ("show-group-tabs");
 276
 277                 /* now reset each strips width so the right widgets are shown */
 278                 MixerStrip* ms;
 279
 280                 TreeModel::Children rows = track_model->children();
 281                 TreeModel::Children::iterator ri;
 282
 283                 for (ri = rows.begin(); ri != rows.end(); ++ri) {
 284                         ms = (*ri)[track_columns.strip];
 285                         ms->set_width_enum (ms->get_width_enum (), ms->width_owner());
 286                         /* Fix visibility of mixer strip stuff */
 287                         ms->parameter_changed (X_("mixer-strip-visibility"));
 288                 }
 289         }
 290
 291         /* force focus into main area */
 292         scroller_base.grab_focus ();
 293
 294         _visible = true;
 295 }
 296
 297 bool
 298 Mixer_UI::hide_window (GdkEventAny *ev)
 299 {
 300         get_window_pos_and_size ();
 301
 302         _visible = false;
 303         return just_hide_it(ev, static_cast<Gtk::Window *>(this));
 304 }
 305
 306
 307 void
 308 Mixer_UI::add_strips (RouteList& routes)
 309 {
 310         MixerStrip* strip;
 311
 312         {
 313                 Unwinder<bool> uw (no_track_list_redisplay, true);
 314
 315                 for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
 316                         boost::shared_ptr<Route> route = (*x);
 317
 318                         if (route->is_hidden()) {
 319                                 continue;
 320                         }
 321
 322                         if (route->is_monitor()) {
 323
 324                                 if (!_monitor_section) {
 325                                         _monitor_section = new MonitorSection (_session);
 326
 327                                         XMLNode* mnode = ARDOUR_UI::instance()->tearoff_settings (X_("monitor-section"));
 328                                         if (mnode) {
 329                                                 _monitor_section->tearoff().set_state (*mnode);
 330                                         }
 331                                 }
 332
 333                                 out_packer.pack_end (_monitor_section->tearoff(), false, false);
 334                                 _monitor_section->set_session (_session);
 335                                 _monitor_section->tearoff().show_all ();
 336
 337                                 route->DropReferences.connect (*this, invalidator(*this), boost::bind (&Mixer_UI::monitor_section_going_away, this), gui_context());
 338
 339                                 /* no regular strip shown for control out */
 340
 341                                 continue;
 342                         }
 343
 344                         strip = new MixerStrip (*this, _session, route);
 345                         strips.push_back (strip);
 346
 347                         Config->get_default_narrow_ms() ? _strip_width = Narrow : _strip_width = Wide;
 348
 349                         if (strip->width_owner() != strip) {
 350                                 strip->set_width_enum (_strip_width, this);
 351                         }
 352
 353                         show_strip (strip);
 354
 355                         TreeModel::Row row = *(track_model->append());
 356                         row[track_columns.text] = route->name();
 357                         row[track_columns.visible] = strip->route()->is_master() ? true : strip->marked_for_display();
 358                         row[track_columns.route] = route;
 359                         row[track_columns.strip] = strip;
 360
 361                         route->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::strip_property_changed, this, _1, strip), gui_context());
 362
 363                         strip->WidthChanged.connect (sigc::mem_fun(*this, &Mixer_UI::strip_width_changed));
 364                         strip->signal_button_release_event().connect (sigc::bind (sigc::mem_fun(*this, &Mixer_UI::strip_button_release_event), strip));
 365                 }
 366         }
 367
 368         sync_order_keys_from_treeview ();
 369         redisplay_track_list ();
 370 }
 371
 372 void
 373 Mixer_UI::remove_strip (MixerStrip* strip)
 374 {
 375         if (_session && _session->deletion_in_progress()) {
 376                 /* its all being taken care of */
 377                 return;
 378         }
 379
 380         TreeModel::Children rows = track_model->children();
 381         TreeModel::Children::iterator ri;
 382         list<MixerStrip *>::iterator i;
 383
 384         if ((i = find (strips.begin(), strips.end(), strip)) != strips.end()) {
 385                 strips.erase (i);
 386         }
 387
 388         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 389                 if ((*ri)[track_columns.strip] == strip) {
 390                         track_model->erase (ri);
 391                         break;
 392                 }
 393         }
 394 }
 395
 396 void
 397 Mixer_UI::reset_remote_control_ids ()
 398 {
 399         if (Config->get_remote_model() != MixerOrdered || !_session || _session->deletion_in_progress()) {
 400                 return;
 401         }
 402
 403         TreeModel::Children rows = track_model->children();
 404
 405         if (rows.empty()) {
 406                 return;
 407         }
 408
 409         DEBUG_TRACE (DEBUG::OrderKeys, "mixer resets remote control ids after remote model change\n");
 410
 411         TreeModel::Children::iterator ri;
 412         bool rid_change = false;
 413         uint32_t rid = 1;
 414         uint32_t invisible_key = UINT32_MAX;
 415
 416         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 417                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 418                 bool visible = (*ri)[track_columns.visible];
 419
 420                 if (!route->is_master() && !route->is_monitor()) {
 421
 422                         uint32_t new_rid = (visible ? rid : invisible_key--);
 423
 424                         if (new_rid != route->remote_control_id()) {
 425                                 route->set_remote_control_id_from_order_key (MixerSort, new_rid);
 426                                 rid_change = true;
 427                         }
 428
 429                         if (visible) {
 430                                 rid++;
 431                         }
 432                 }
 433         }
 434
 435         if (rid_change) {
 436                 /* tell the world that we changed the remote control IDs */
 437                 _session->notify_remote_id_change ();
 438         }
 439 }
 440
 441 void
 442 Mixer_UI::sync_order_keys_from_treeview ()
 443 {
 444         if (ignore_reorder || !_session || _session->deletion_in_progress()) {
 445                 return;
 446         }
 447
 448         TreeModel::Children rows = track_model->children();
 449
 450         if (rows.empty()) {
 451                 return;
 452         }
 453
 454         DEBUG_TRACE (DEBUG::OrderKeys, "mixer sync order keys from model\n");
 455
 456         TreeModel::Children::iterator ri;
 457         bool changed = false;
 458         bool rid_change = false;
 459         uint32_t order = 0;
 460         uint32_t rid = 1;
 461         uint32_t invisible_key = UINT32_MAX;
 462
 463         for (ri = rows.begin(); ri != rows.end(); ++ri) {
 464                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 465                 bool visible = (*ri)[track_columns.visible];
 466
 467                 uint32_t old_key = route->order_key (MixerSort);
 468
 469                 if (order != old_key) {
 470                         route->set_order_key (MixerSort, order);
 471                         changed = true;
 472                 }
 473
 474                 if ((Config->get_remote_model() == MixerOrdered) && !route->is_master() && !route->is_monitor()) {
 475
 476                         uint32_t new_rid = (visible ? rid : invisible_key--);
 477
 478                         if (new_rid != route->remote_control_id()) {
 479                                 route->set_remote_control_id_from_order_key (MixerSort, new_rid);
 480                                 rid_change = true;
 481                         }
 482
 483                         if (visible) {
 484                                 rid++;
 485                         }
 486
 487                 }
 488
 489                 ++order;
 490         }
 491
 492         if (changed) {
 493                 /* tell everyone that we changed the mixer sort keys */
 494                 _session->sync_order_keys (MixerSort);
 495         }
 496
 497         if (rid_change) {
 498                 /* tell the world that we changed the remote control IDs */
 499                 _session->notify_remote_id_change ();
 500         }
 501 }
 502
 503 void
 504 Mixer_UI::sync_treeview_from_order_keys (RouteSortOrderKey src)
 505 {
 506         if (!_session || _session->deletion_in_progress()) {
 507                 return;
 508         }
 509
 510         DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("mixer sync model from order keys, src = %1\n", enum_2_string (src)));
 511
 512         if (src == EditorSort) {
 513
 514                 if (!Config->get_sync_all_route_ordering()) {
 515                         /* editor sort keys changed - we don't care */
 516                         return;
 517                 }
 518
 519                 DEBUG_TRACE (DEBUG::OrderKeys, "reset mixer order key to match editor\n");
 520
 521                 /* editor sort keys were changed, update the mixer sort
 522                  * keys since "sync mixer+editor order" is enabled.
 523                  */
 524
 525                 boost::shared_ptr<RouteList> r = _session->get_routes ();
 526
 527                 for (RouteList::iterator i = r->begin(); i != r->end(); ++i) {
 528                         (*i)->sync_order_keys (src);
 529                 }
 530         }
 531
 532         /* we could get here after either a change in the Mixer or Editor sort
 533          * order, but either way, the mixer order keys reflect the intended
 534          * order for the GUI, so reorder the treeview model to match it.
 535          */
 536
 537         vector<int> neworder;
 538         TreeModel::Children rows = track_model->children();
 539         uint32_t old_order = 0;
 540         bool changed = false;
 541
 542         if (rows.empty()) {
 543                 return;
 544         }
 545
 546         neworder.assign (rows.size(), 0);
 547
 548         for (TreeModel::Children::iterator ri = rows.begin(); ri != rows.end(); ++ri, ++old_order) {
 549                 boost::shared_ptr<Route> route = (*ri)[track_columns.route];
 550                 uint32_t new_order = route->order_key (MixerSort);
 551
 552                 neworder[new_order] = old_order;
 553
 554                 if (old_order != new_order) {
 555                         changed = true;
 556                 }
 557
 558                 DEBUG_TRACE (DEBUG::OrderKeys, string_compose ("MIXER change order for %1 from %2 to %3\n",
 559                                                                route->name(), old_order, new_order));
 560         }
 561
 562         if (changed) {
 563                 Unwinder<bool> uw (ignore_reorder, true);
 564                 track_model->reorder (neworder);
 565         }
 566
 567         redisplay_track_list ();
 568 }
 569
 570 void
 571 Mixer_UI::follow_editor_selection ()
 572 {
 573         if (!Config->get_link_editor_and_mixer_selection() || _following_editor_selection) {
 574                 return;
 575         }
 576
 577         _following_editor_selection = true;
 578         _selection.block_routes_changed (true);
 579
 580         TrackSelection& s (PublicEditor::instance().get_selection().tracks);
 581
 582         _selection.clear_routes ();
 583
 584         for (TrackViewList::iterator i = s.begin(); i != s.end(); ++i) {
 585                 RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (*i);
 586                 if (rtav) {
 587                         MixerStrip* ms = strip_by_route (rtav->route());
 588                         if (ms) {
 589                                 _selection.add (ms);
 590                         }
 591                 }
 592         }
 593
 594         _following_editor_selection = false;
 595         _selection.block_routes_changed (false);
 596 }
 597
 598
 599 MixerStrip*
 600 Mixer_UI::strip_by_route (boost::shared_ptr<Route> r)
 601 {
 602         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 603                 if ((*i)->route() == r) {
 604                         return (*i);
 605                 }
 606         }
 607
 608         return 0;
 609 }
 610
 611 bool
 612 Mixer_UI::strip_button_release_event (GdkEventButton *ev, MixerStrip *strip)
 613 {
 614         if (ev->button == 1) {
 615                 if (_selection.selected (strip)) {
 616                         /* primary-click: toggle selection state of strip */
 617                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 618                                 _selection.remove (strip);
 619                         }
 620                 } else {
 621                         if (Keyboard::modifier_state_equals (ev->state, Keyboard::PrimaryModifier)) {
 622                                 _selection.add (strip);
 623                         } else if (Keyboard::modifier_state_equals (ev->state, Keyboard::RangeSelectModifier)) {
 624
 625                                 if (!_selection.selected(strip)) {
 626
 627                                         /* extend selection */
 628
 629                                         vector<MixerStrip*> tmp;
 630                                         bool accumulate = false;
 631
 632                                         tmp.push_back (strip);
 633
 634                                         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
 635                                                 if ((*i) == strip) {
 636                                                         /* hit clicked strip, start accumulating till we hit the first
 637                                                            selected strip
 638                                                         */
 639                                                         if (accumulate) {
 640                                                                 /* done */
 641                                                                 break;
 642                                                         } else {
 643                                                                 accumulate = true;
 644                                                         }
 645                                                 } else if (_selection.selected (*i)) {
 646                                                         /* hit selected strip. if currently accumulating others,
 647                                                            we're done. if not accumulating others, start doing so.
 648                                                         */
 649                                                         if (accumulate) {
 650                                                                 /* done */
 651                                                                 break;
 652                                                         } else {
 653                                                                 accumulate = true;
 654                                                         }
 655                                                 } else {
 656                                                         if (accumulate) {
 657                                                                 tmp.push_back (*i);
 658                                                         }
 659                                                 }
 660                                         }
 661
 662                                         for (vector<MixerStrip*>::iterator i = tmp.begin(); i != tmp.end(); ++i) {
 663                                                 _selection.add (*i);
 664                                         }
 665                                 }
 666
 667                         } else {
 668                                 _selection.set (strip);
 669                         }
 670                 }
 671         }
 672
 673         return true;
 674 }
 675
 676 void
 677 Mixer_UI::set_session (Session* sess)
 678 {
 679         SessionHandlePtr::set_session (sess);
 680
 681         if (_plugin_selector) {
 682                 _plugin_selector->set_session (_session);
 683         }
 684
 685         _group_tabs->set_session (sess);
 686
 687         if (!_session) {
 688                 return;
 689         }
 690
 691         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
 692         set_state (*node);
 693
 694         update_title ();
 695
 696         initial_track_display ();
 697
 698         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_strips, this, _1), gui_context());
 699         _session->route_group_added.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::add_route_group, this, _1), gui_context());
 700         _session->route_group_removed.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 701         _session->route_groups_reordered.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::route_groups_changed, this), gui_context());
 702         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context());
 703         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 704         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Mixer_UI::update_title, this), gui_context());
 705
 706         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::parameter_changed, this, _1), gui_context ());
 707
 708         route_groups_changed ();
 709
 710         if (_visible) {
 711                 show_window();
 712
 713                 /* Bit of a hack; if we're here, we're opening the mixer because of our
 714                    instant XML state having a show-mixer property.  Fix up the corresponding
 715                    action state.
 716                 */
 717                 ActionManager::check_toggleaction ("<Actions>/Common/toggle-mixer");
 718         }
 719
 720         start_updating ();
 721 }
 722
 723 void
 724 Mixer_UI::session_going_away ()
 725 {
 726         ENSURE_GUI_THREAD (*this, &Mixer_UI::session_going_away);
 727
 728         _in_group_rebuild_or_clear = true;
 729         group_model->clear ();
 730         _in_group_rebuild_or_clear = false;
 731
 732         _selection.clear ();
 733         track_model->clear ();
 734
 735         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 736                 delete (*i);
 737         }
 738
 739         if (_monitor_section) {
 740                 _monitor_section->tearoff().hide_visible ();
 741         }
 742
 743         strips.clear ();
 744
 745         stop_updating ();
 746
 747         SessionHandlePtr::session_going_away ();
 748
 749         _session = 0;
 750         update_title ();
 751 }
 752
 753 void
 754 Mixer_UI::track_visibility_changed (std::string const & path)
 755 {
 756         if (_session && _session->deletion_in_progress()) {
 757                 return;
 758         }
 759
 760         TreeIter iter;
 761
 762         if ((iter = track_model->get_iter (path))) {
 763                 MixerStrip* strip = (*iter)[track_columns.strip];
 764                 if (strip) {
 765                         bool visible = (*iter)[track_columns.visible];
 766
 767                         if (strip->set_marked_for_display (!visible)) {
 768                                 update_track_visibility ();
 769                         }
 770                 }
 771         }
 772 }
 773
 774 void
 775 Mixer_UI::update_track_visibility ()
 776 {
 777         TreeModel::Children rows = track_model->children();
 778         TreeModel::Children::iterator i;
 779
 780         {
 781                 Unwinder<bool> uw (no_track_list_redisplay, true);
 782
 783                 for (i = rows.begin(); i != rows.end(); ++i) {
 784                         MixerStrip *strip = (*i)[track_columns.strip];
 785                         (*i)[track_columns.visible] = strip->marked_for_display ();
 786                 }
 787
 788                 /* force route order keys catch up with visibility changes
 789                  */
 790
 791                 sync_order_keys_from_treeview ();
 792         }
 793
 794         redisplay_track_list ();
 795 }
 796
 797 void
 798 Mixer_UI::show_strip (MixerStrip* ms)
 799 {
 800         TreeModel::Children rows = track_model->children();
 801         TreeModel::Children::iterator i;
 802
 803         for (i = rows.begin(); i != rows.end(); ++i) {
 804
 805                 MixerStrip* strip = (*i)[track_columns.strip];
 806                 if (strip == ms) {
 807                         (*i)[track_columns.visible] = true;
 808                         redisplay_track_list ();
 809                         break;
 810                 }
 811         }
 812 }
 813
 814 void
 815 Mixer_UI::hide_strip (MixerStrip* ms)
 816 {
 817         TreeModel::Children rows = track_model->children();
 818         TreeModel::Children::iterator i;
 819
 820         for (i = rows.begin(); i != rows.end(); ++i) {
 821
 822                 MixerStrip* strip = (*i)[track_columns.strip];
 823                 if (strip == ms) {
 824                         (*i)[track_columns.visible] = false;
 825                         redisplay_track_list ();
 826                         break;
 827                 }
 828         }
 829 }
 830
 831 gint
 832 Mixer_UI::start_updating ()
 833 {
 834     fast_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (sigc::mem_fun(*this, &Mixer_UI::fast_update_strips));
 835     return 0;
 836 }
 837
 838 gint
 839 Mixer_UI::stop_updating ()
 840 {
 841     fast_screen_update_connection.disconnect();
 842     return 0;
 843 }
 844
 845 void
 846 Mixer_UI::fast_update_strips ()
 847 {
 848         if (is_mapped () && _session) {
 849                 for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
 850                         (*i)->fast_update ();
 851                 }
 852         }
 853 }
 854
 855 void
 856 Mixer_UI::set_all_strips_visibility (bool yn)
 857 {
 858         TreeModel::Children rows = track_model->children();
 859         TreeModel::Children::iterator i;
 860
 861         {
 862                 Unwinder<bool> uw (no_track_list_redisplay, true);
 863
 864                 for (i = rows.begin(); i != rows.end(); ++i) {
 865
 866                         TreeModel::Row row = (*i);
 867                         MixerStrip* strip = row[track_columns.strip];
 868
 869                         if (strip == 0) {
 870                                 continue;
 871                         }
 872
 873                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 874                                 continue;
 875                         }
 876
 877                         (*i)[track_columns.visible] = yn;
 878                 }
 879         }
 880
 881         redisplay_track_list ();
 882 }
 883
 884
 885 void
 886 Mixer_UI::set_all_audio_visibility (int tracks, bool yn)
 887 {
 888         TreeModel::Children rows = track_model->children();
 889         TreeModel::Children::iterator i;
 890
 891         {
 892                 Unwinder<bool> uw (no_track_list_redisplay, true);
 893
 894                 for (i = rows.begin(); i != rows.end(); ++i) {
 895                         TreeModel::Row row = (*i);
 896                         MixerStrip* strip = row[track_columns.strip];
 897
 898                         if (strip == 0) {
 899                                 continue;
 900                         }
 901
 902                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
 903                                 continue;
 904                         }
 905
 906                         boost::shared_ptr<AudioTrack> at = strip->audio_track();
 907
 908                         switch (tracks) {
 909                         case 0:
 910                                 (*i)[track_columns.visible] = yn;
 911                                 break;
 912
 913                         case 1:
 914                                 if (at) { /* track */
 915                                         (*i)[track_columns.visible] = yn;
 916                                 }
 917                                 break;
 918
 919                         case 2:
 920                                 if (!at) { /* bus */
 921                                         (*i)[track_columns.visible] = yn;
 922                                 }
 923                                 break;
 924                         }
 925                 }
 926         }
 927
 928         redisplay_track_list ();
 929 }
 930
 931 void
 932 Mixer_UI::hide_all_routes ()
 933 {
 934         set_all_strips_visibility (false);
 935 }
 936
 937 void
 938 Mixer_UI::show_all_routes ()
 939 {
 940         set_all_strips_visibility (true);
 941 }
 942
 943 void
 944 Mixer_UI::show_all_audiobus ()
 945 {
 946         set_all_audio_visibility (2, true);
 947 }
 948 void
 949 Mixer_UI::hide_all_audiobus ()
 950 {
 951         set_all_audio_visibility (2, false);
 952 }
 953
 954 void
 955 Mixer_UI::show_all_audiotracks()
 956 {
 957         set_all_audio_visibility (1, true);
 958 }
 959 void
 960 Mixer_UI::hide_all_audiotracks ()
 961 {
 962         set_all_audio_visibility (1, false);
 963 }
 964
 965 void
 966 Mixer_UI::track_list_reorder (const TreeModel::Path&, const TreeModel::iterator&, int* /*new_order*/)
 967 {
 968         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview reordered\n");
 969         sync_order_keys_from_treeview ();
 970 }
 971
 972 void
 973 Mixer_UI::track_list_delete (const Gtk::TreeModel::Path&)
 974 {
 975         /* this happens as the second step of a DnD within the treeview as well
 976            as when a row/route is actually deleted.
 977         */
 978         DEBUG_TRACE (DEBUG::OrderKeys, "mixer UI treeview row deleted\n");
 979         sync_order_keys_from_treeview ();
 980 }
 981
 982 void
 983 Mixer_UI::redisplay_track_list ()
 984 {
 985         TreeModel::Children rows = track_model->children();
 986         TreeModel::Children::iterator i;
 987
 988         if (no_track_list_redisplay) {
 989                 return;
 990         }
 991
 992         for (i = rows.begin(); i != rows.end(); ++i) {
 993
 994                 MixerStrip* strip = (*i)[track_columns.strip];
 995
 996                 if (strip == 0) {
 997                         /* we're in the middle of changing a row, don't worry */
 998                         continue;
 999                 }
1000
1001                 bool const visible = (*i)[track_columns.visible];
1002
1003                 if (visible) {
1004                         strip->set_gui_property ("visible", true);
1005
1006                         if (strip->packed()) {
1007
1008                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1009                                         out_packer.reorder_child (*strip, -1);
1010
1011                                 } else {
1012                                         strip_packer.reorder_child (*strip, -1); /* put at end */
1013                                 }
1014
1015                         } else {
1016
1017                                 if (strip->route()->is_master() || strip->route()->is_monitor()) {
1018                                         out_packer.pack_start (*strip, false, false);
1019                                 } else {
1020                                         strip_packer.pack_start (*strip, false, false);
1021                                 }
1022                                 strip->set_packed (true);
1023                         }
1024
1025                 } else {
1026
1027                         strip->set_gui_property ("visible", false);
1028
1029                         if (strip->route()->is_master() || strip->route()->is_monitor()) {
1030                                 /* do nothing, these cannot be hidden */
1031                         } else {
1032                                 if (strip->packed()) {
1033                                         strip_packer.remove (*strip);
1034                                         strip->set_packed (false);
1035                                 }
1036                         }
1037                 }
1038         }
1039
1040         _group_tabs->set_dirty ();
1041 }
1042
1043 void
1044 Mixer_UI::strip_width_changed ()
1045 {
1046         _group_tabs->set_dirty ();
1047
1048 #ifdef GTKOSX
1049         TreeModel::Children rows = track_model->children();
1050         TreeModel::Children::iterator i;
1051         long order;
1052
1053         for (order = 0, i = rows.begin(); i != rows.end(); ++i, ++order) {
1054                 MixerStrip* strip = (*i)[track_columns.strip];
1055
1056                 if (strip == 0) {
1057                         continue;
1058                 }
1059
1060                 bool visible = (*i)[track_columns.visible];
1061
1062                 if (visible) {
1063                         strip->queue_draw();
1064                 }
1065         }
1066 #endif
1067
1068 }
1069
1070 struct SignalOrderRouteSorter {
1071     bool operator() (boost::shared_ptr<Route> a, boost::shared_ptr<Route> b) {
1072             if (a->is_master() || a->is_monitor()) {
1073                     /* "a" is a special route (master, monitor, etc), and comes
1074                      * last in the mixer ordering
1075                      */
1076                     return false;
1077             } else if (b->is_master() || b->is_monitor()) {
1078                     /* everything comes before b */
1079                     return true;
1080             }
1081             return a->order_key (MixerSort) < b->order_key (MixerSort);
1082
1083     }
1084 };
1085
1086 void
1087 Mixer_UI::initial_track_display ()
1088 {
1089         boost::shared_ptr<RouteList> routes = _session->get_routes();
1090         RouteList copy (*routes);
1091         SignalOrderRouteSorter sorter;
1092
1093         copy.sort (sorter);
1094
1095         {
1096                 Unwinder<bool> uw1 (no_track_list_redisplay, true);
1097                 Unwinder<bool> uw2 (ignore_reorder, true);
1098
1099                 track_model->clear ();
1100                 add_strips (copy);
1101         }
1102
1103         _session->sync_order_keys (MixerSort);
1104
1105         redisplay_track_list ();
1106 }
1107
1108 void
1109 Mixer_UI::show_track_list_menu ()
1110 {
1111         if (track_menu == 0) {
1112                 build_track_menu ();
1113         }
1114
1115         track_menu->popup (1, gtk_get_current_event_time());
1116 }
1117
1118 bool
1119 Mixer_UI::track_display_button_press (GdkEventButton* ev)
1120 {
1121         if (Keyboard::is_context_menu_event (ev)) {
1122                 show_track_list_menu ();
1123                 return true;
1124         }
1125
1126         return false;
1127 }
1128
1129 void
1130 Mixer_UI::build_track_menu ()
1131 {
1132         using namespace Menu_Helpers;
1133         using namespace Gtk;
1134
1135         track_menu = new Menu;
1136         track_menu->set_name ("ArdourContextMenu");
1137         MenuList& items = track_menu->items();
1138
1139         items.push_back (MenuElem (_("Show All"), sigc::mem_fun(*this, &Mixer_UI::show_all_routes)));
1140         items.push_back (MenuElem (_("Hide All"), sigc::mem_fun(*this, &Mixer_UI::hide_all_routes)));
1141         items.push_back (MenuElem (_("Show All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiotracks)));
1142         items.push_back (MenuElem (_("Hide All Audio Tracks"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiotracks)));
1143         items.push_back (MenuElem (_("Show All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::show_all_audiobus)));
1144         items.push_back (MenuElem (_("Hide All Audio Busses"), sigc::mem_fun(*this, &Mixer_UI::hide_all_audiobus)));
1145
1146 }
1147
1148 void
1149 Mixer_UI::strip_property_changed (const PropertyChange& what_changed, MixerStrip* mx)
1150 {
1151         if (!what_changed.contains (ARDOUR::Properties::name)) {
1152                 return;
1153         }
1154
1155         ENSURE_GUI_THREAD (*this, &Mixer_UI::strip_name_changed, what_changed, mx)
1156
1157         TreeModel::Children rows = track_model->children();
1158         TreeModel::Children::iterator i;
1159
1160         for (i = rows.begin(); i != rows.end(); ++i) {
1161                 if ((*i)[track_columns.strip] == mx) {
1162                         (*i)[track_columns.text] = mx->route()->name();
1163                         return;
1164                 }
1165         }
1166
1167         error << _("track display list item for renamed strip not found!") << endmsg;
1168 }
1169
1170 bool
1171 Mixer_UI::group_display_button_press (GdkEventButton* ev)
1172 {
1173         TreeModel::Path path;
1174         TreeViewColumn* column;
1175         int cellx;
1176         int celly;
1177
1178         if (!group_display.get_path_at_pos ((int)ev->x, (int)ev->y, path, column, cellx, celly)) {
1179                 return false;
1180         }
1181
1182         TreeIter iter = group_model->get_iter (path);
1183         if (!iter) {
1184                 return false;
1185         }
1186
1187         RouteGroup* group = (*iter)[group_columns.group];
1188
1189         if (Keyboard::is_context_menu_event (ev)) {
1190                 _group_tabs->get_menu(group)->popup (1, ev->time);
1191                 return true;
1192         }
1193
1194         switch (GPOINTER_TO_UINT (column->get_data (X_("colnum")))) {
1195         case 0:
1196                 if (Keyboard::is_edit_event (ev)) {
1197                         if (group) {
1198                                 // edit_route_group (group);
1199 #ifdef GTKOSX
1200                                 group_display.queue_draw();
1201 #endif
1202                                 return true;
1203                         }
1204                 }
1205                 break;
1206
1207         case 1:
1208         {
1209                 bool visible = (*iter)[group_columns.visible];
1210                 (*iter)[group_columns.visible] = !visible;
1211 #ifdef GTKOSX
1212                 group_display.queue_draw();
1213 #endif
1214                 return true;
1215         }
1216
1217         default:
1218                 break;
1219         }
1220
1221         return false;
1222  }
1223
1224 void
1225 Mixer_UI::activate_all_route_groups ()
1226 {
1227         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), true));
1228 }
1229
1230 void
1231 Mixer_UI::disable_all_route_groups ()
1232 {
1233         _session->foreach_route_group (sigc::bind (sigc::mem_fun (*this, &Mixer_UI::set_route_group_activation), false));
1234 }
1235
1236 void
1237 Mixer_UI::route_groups_changed ()
1238 {
1239         ENSURE_GUI_THREAD (*this, &Mixer_UI::route_groups_changed);
1240
1241         _in_group_rebuild_or_clear = true;
1242
1243         /* just rebuild the while thing */
1244
1245         group_model->clear ();
1246
1247         {
1248                 TreeModel::Row row;
1249                 row = *(group_model->append());
1250                 row[group_columns.visible] = true;
1251                 row[group_columns.text] = (_("-all-"));
1252                 row[group_columns.group] = 0;
1253         }
1254
1255         _session->foreach_route_group (sigc::mem_fun (*this, &Mixer_UI::add_route_group));
1256
1257         _group_tabs->set_dirty ();
1258         _in_group_rebuild_or_clear = false;
1259 }
1260
1261 void
1262 Mixer_UI::new_route_group ()
1263 {
1264         RouteList rl;
1265
1266         _group_tabs->run_new_group_dialog (rl);
1267 }
1268
1269 void
1270 Mixer_UI::remove_selected_route_group ()
1271 {
1272         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1273         TreeView::Selection::ListHandle_Path rows = selection->get_selected_rows ();
1274
1275         if (rows.empty()) {
1276                 return;
1277         }
1278
1279         TreeView::Selection::ListHandle_Path::iterator i = rows.begin();
1280         TreeIter iter;
1281
1282         /* selection mode is single, so rows.begin() is it */
1283
1284         if ((iter = group_model->get_iter (*i))) {
1285
1286                 RouteGroup* rg = (*iter)[group_columns.group];
1287
1288                 if (rg) {
1289                         _session->remove_route_group (*rg);
1290                 }
1291         }
1292 }
1293
1294 void
1295 Mixer_UI::route_group_property_changed (RouteGroup* group, const PropertyChange& change)
1296 {
1297         if (in_group_row_change) {
1298                 return;
1299         }
1300
1301         /* force an update of any mixer strips that are using this group,
1302            otherwise mix group names don't change in mixer strips
1303         */
1304
1305         for (list<MixerStrip *>::iterator i = strips.begin(); i != strips.end(); ++i) {
1306                 if ((*i)->route_group() == group) {
1307                         (*i)->route_group_changed();
1308                 }
1309         }
1310
1311         TreeModel::iterator i;
1312         TreeModel::Children rows = group_model->children();
1313         Glib::RefPtr<TreeSelection> selection = group_display.get_selection();
1314
1315         in_group_row_change = true;
1316
1317         for (i = rows.begin(); i != rows.end(); ++i) {
1318                 if ((*i)[group_columns.group] == group) {
1319                         (*i)[group_columns.visible] = !group->is_hidden ();
1320                         (*i)[group_columns.text] = group->name ();
1321                         break;
1322                 }
1323         }
1324
1325         in_group_row_change = false;
1326
1327         if (change.contains (Properties::name)) {
1328                 _group_tabs->set_dirty ();
1329         }
1330
1331         for (list<MixerStrip*>::iterator j = strips.begin(); j != strips.end(); ++j) {
1332                 if ((*j)->route_group() == group) {
1333                         if (group->is_hidden ()) {
1334                                 hide_strip (*j);
1335                         } else {
1336                                 show_strip (*j);
1337                         }
1338                 }
1339         }
1340 }
1341
1342 void
1343 Mixer_UI::route_group_name_edit (const std::string& path, const std::string& new_text)
1344 {
1345         RouteGroup* group;
1346         TreeIter iter;
1347
1348         if ((iter = group_model->get_iter (path))) {
1349
1350                 if ((group = (*iter)[group_columns.group]) == 0) {
1351                         return;
1352                 }
1353
1354                 if (new_text != group->name()) {
1355                         group->set_name (new_text);
1356                 }
1357         }
1358 }
1359
1360 void
1361 Mixer_UI::route_group_row_change (const Gtk::TreeModel::Path&, const Gtk::TreeModel::iterator& iter)
1362 {
1363         RouteGroup* group;
1364
1365         if (in_group_row_change) {
1366                 return;
1367         }
1368
1369         if ((group = (*iter)[group_columns.group]) == 0) {
1370                 return;
1371         }
1372
1373         std::string name = (*iter)[group_columns.text];
1374
1375         if (name != group->name()) {
1376                 group->set_name (name);
1377         }
1378
1379         bool hidden = !(*iter)[group_columns.visible];
1380
1381         if (hidden != group->is_hidden ()) {
1382                 group->set_hidden (hidden, this);
1383         }
1384 }
1385
1386 /** Called when a group model row is deleted, but also when the model is
1387  *  reordered by a user drag-and-drop; the latter is what we are
1388  *  interested in here.
1389  */
1390 void
1391 Mixer_UI::route_group_row_deleted (Gtk::TreeModel::Path const &)
1392 {
1393         if (_in_group_rebuild_or_clear) {
1394                 return;
1395         }
1396
1397         /* Re-write the session's route group list so that the new order is preserved */
1398
1399         list<RouteGroup*> new_list;
1400
1401         Gtk::TreeModel::Children children = group_model->children();
1402         for (Gtk::TreeModel::Children::iterator i = children.begin(); i != children.end(); ++i) {
1403                 RouteGroup* g = (*i)[group_columns.group];
1404                 if (g) {
1405                         new_list.push_back (g);
1406                 }
1407         }
1408
1409         _session->reorder_route_groups (new_list);
1410 }
1411
1412
1413 void
1414 Mixer_UI::add_route_group (RouteGroup* group)
1415 {
1416         ENSURE_GUI_THREAD (*this, &Mixer_UI::add_route_group, group)
1417         bool focus = false;
1418
1419         in_group_row_change = true;
1420
1421         TreeModel::Row row = *(group_model->append());
1422         row[group_columns.visible] = !group->is_hidden ();
1423         row[group_columns.group] = group;
1424         if (!group->name().empty()) {
1425                 row[group_columns.text] = group->name();
1426         } else {
1427                 row[group_columns.text] = _("unnamed");
1428                 focus = true;
1429         }
1430
1431         group->PropertyChanged.connect (*this, invalidator (*this), boost::bind (&Mixer_UI::route_group_property_changed, this, group, _1), gui_context());
1432
1433         if (focus) {
1434                 TreeViewColumn* col = group_display.get_column (0);
1435                 CellRendererText* name_cell = dynamic_cast<CellRendererText*>(group_display.get_column_cell_renderer (0));
1436                 group_display.set_cursor (group_model->get_path (row), *col, *name_cell, true);
1437         }
1438
1439         _group_tabs->set_dirty ();
1440
1441         in_group_row_change = false;
1442 }
1443
1444 bool
1445 Mixer_UI::strip_scroller_button_release (GdkEventButton* ev)
1446 {
1447         using namespace Menu_Helpers;
1448
1449         if (Keyboard::is_context_menu_event (ev)) {
1450                 ARDOUR_UI::instance()->add_route (this);
1451                 return true;
1452         }
1453
1454         return false;
1455 }
1456
1457 void
1458 Mixer_UI::set_strip_width (Width w)
1459 {
1460         _strip_width = w;
1461
1462         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1463                 (*i)->set_width_enum (w, this);
1464         }
1465 }
1466
1467 void
1468 Mixer_UI::set_window_pos_and_size ()
1469 {
1470         resize (m_width, m_height);
1471         move (m_root_x, m_root_y);
1472 }
1473
1474         void
1475 Mixer_UI::get_window_pos_and_size ()
1476 {
1477         get_position(m_root_x, m_root_y);
1478         get_size(m_width, m_height);
1479 }
1480
1481 int
1482 Mixer_UI::set_state (const XMLNode& node)
1483 {
1484         const XMLProperty* prop;
1485         XMLNode* geometry;
1486
1487         m_width = default_width;
1488         m_height = default_height;
1489         m_root_x = 1;
1490         m_root_y = 1;
1491
1492         if ((geometry = find_named_node (node, "geometry")) != 0) {
1493
1494                 XMLProperty* prop;
1495
1496                 if ((prop = geometry->property("x_size")) == 0) {
1497                         prop = geometry->property ("x-size");
1498                 }
1499                 if (prop) {
1500                         m_width = atoi(prop->value());
1501                 }
1502                 if ((prop = geometry->property("y_size")) == 0) {
1503                         prop = geometry->property ("y-size");
1504                 }
1505                 if (prop) {
1506                         m_height = atoi(prop->value());
1507                 }
1508
1509                 if ((prop = geometry->property ("x_pos")) == 0) {
1510                         prop = geometry->property ("x-pos");
1511                 }
1512                 if (prop) {
1513                         m_root_x = atoi (prop->value());
1514
1515                 }
1516                 if ((prop = geometry->property ("y_pos")) == 0) {
1517                         prop = geometry->property ("y-pos");
1518                 }
1519                 if (prop) {
1520                         m_root_y = atoi (prop->value());
1521                 }
1522         }
1523
1524         set_window_pos_and_size ();
1525
1526         if ((prop = node.property ("narrow-strips"))) {
1527                 if (string_is_affirmative (prop->value())) {
1528                         set_strip_width (Narrow);
1529                 } else {
1530                         set_strip_width (Wide);
1531                 }
1532         }
1533
1534         if ((prop = node.property ("show-mixer"))) {
1535                 if (string_is_affirmative (prop->value())) {
1536                        _visible = true;
1537                 }
1538         }
1539
1540         return 0;
1541 }
1542
1543 XMLNode&
1544 Mixer_UI::get_state (void)
1545 {
1546         XMLNode* node = new XMLNode ("Mixer");
1547
1548         if (is_realized()) {
1549                 Glib::RefPtr<Gdk::Window> win = get_window();
1550
1551                 get_window_pos_and_size ();
1552
1553                 XMLNode* geometry = new XMLNode ("geometry");
1554                 char buf[32];
1555                 snprintf(buf, sizeof(buf), "%d", m_width);
1556                 geometry->add_property(X_("x_size"), string(buf));
1557                 snprintf(buf, sizeof(buf), "%d", m_height);
1558                 geometry->add_property(X_("y_size"), string(buf));
1559                 snprintf(buf, sizeof(buf), "%d", m_root_x);
1560                 geometry->add_property(X_("x_pos"), string(buf));
1561                 snprintf(buf, sizeof(buf), "%d", m_root_y);
1562                 geometry->add_property(X_("y_pos"), string(buf));
1563
1564                 // written only for compatibility, they are not used.
1565                 snprintf(buf, sizeof(buf), "%d", 0);
1566                 geometry->add_property(X_("x_off"), string(buf));
1567                 snprintf(buf, sizeof(buf), "%d", 0);
1568                 geometry->add_property(X_("y_off"), string(buf));
1569
1570                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&rhs_pane1)->gobj()));
1571                 geometry->add_property(X_("mixer_rhs_pane1_pos"), string(buf));
1572                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&list_hpane)->gobj()));
1573                 geometry->add_property(X_("mixer_list_hpane_pos"), string(buf));
1574
1575                 node->add_child_nocopy (*geometry);
1576         }
1577
1578         node->add_property ("narrow-strips", _strip_width == Narrow ? "yes" : "no");
1579
1580         node->add_property ("show-mixer", _visible ? "yes" : "no");
1581
1582         return *node;
1583 }
1584
1585
1586 void
1587 Mixer_UI::pane_allocation_handler (Allocation&, Gtk::Paned* which)
1588 {
1589         int pos;
1590         XMLProperty* prop = 0;
1591         char buf[32];
1592         XMLNode* node = ARDOUR_UI::instance()->mixer_settings();
1593         XMLNode* geometry;
1594         int height;
1595         static int32_t done[3] = { 0, 0, 0 };
1596
1597         height = default_height;
1598
1599         if ((geometry = find_named_node (*node, "geometry")) != 0) {
1600
1601                 if ((prop = geometry->property ("y_size")) == 0) {
1602                         prop = geometry->property ("y-size");
1603                 }
1604                 if (prop) {
1605                         height = atoi (prop->value());
1606                 }
1607         }
1608
1609         if (which == static_cast<Gtk::Paned*> (&rhs_pane1)) {
1610
1611                 if (done[0]) {
1612                         return;
1613                 }
1614
1615                 if (!geometry || (prop = geometry->property("mixer-rhs-pane1-pos")) == 0) {
1616                         pos = height / 3;
1617                         snprintf (buf, sizeof(buf), "%d", pos);
1618                 } else {
1619                         pos = atoi (prop->value());
1620                 }
1621
1622                 if ((done[0] = GTK_WIDGET(rhs_pane1.gobj())->allocation.height > pos)) {
1623                         rhs_pane1.set_position (pos);
1624                 }
1625
1626         } else if (which == static_cast<Gtk::Paned*> (&list_hpane)) {
1627
1628                 if (done[2]) {
1629                         return;
1630                 }
1631
1632                 if (!geometry || (prop = geometry->property("mixer-list-hpane-pos")) == 0) {
1633                         pos = 75;
1634                         snprintf (buf, sizeof(buf), "%d", pos);
1635                 } else {
1636                         pos = atoi (prop->value());
1637                 }
1638
1639                 if ((done[2] = GTK_WIDGET(list_hpane.gobj())->allocation.width > pos)) {
1640                         list_hpane.set_position (pos);
1641                 }
1642         }
1643 }
1644 void
1645 Mixer_UI::scroll_left ()
1646 {
1647         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1648         /* stupid GTK: can't rely on clamping across versions */
1649         scroller.get_hscrollbar()->set_value (max (adj->get_lower(), adj->get_value() - adj->get_step_increment()));
1650 }
1651
1652 void
1653 Mixer_UI::scroll_right ()
1654 {
1655         Adjustment* adj = scroller.get_hscrollbar()->get_adjustment();
1656         /* stupid GTK: can't rely on clamping across versions */
1657         scroller.get_hscrollbar()->set_value (min (adj->get_upper(), adj->get_value() + adj->get_step_increment()));
1658 }
1659
1660 bool
1661 Mixer_UI::on_key_press_event (GdkEventKey* ev)
1662 {
1663         /* focus widget gets first shot, then bindings, otherwise
1664            forward to main window
1665         */
1666
1667         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1668                 return true;
1669         }
1670
1671         KeyboardKey k (ev->state, ev->keyval);
1672
1673         if (bindings.activate (k, Bindings::Press)) {
1674                 return true;
1675         }
1676
1677         return forward_key_press (ev);
1678 }
1679
1680 bool
1681 Mixer_UI::on_key_release_event (GdkEventKey* ev)
1682 {
1683         if (gtk_window_propagate_key_event (GTK_WINDOW(gobj()), ev)) {
1684                 return true;
1685         }
1686
1687         KeyboardKey k (ev->state, ev->keyval);
1688
1689         if (bindings.activate (k, Bindings::Release)) {
1690                 return true;
1691         }
1692
1693         /* don't forward releases */
1694
1695         return true;
1696 }
1697
1698 bool
1699 Mixer_UI::on_scroll_event (GdkEventScroll* ev)
1700 {
1701         switch (ev->direction) {
1702         case GDK_SCROLL_LEFT:
1703                 scroll_left ();
1704                 return true;
1705         case GDK_SCROLL_UP:
1706                 if (ev->state & Keyboard::TertiaryModifier) {
1707                         scroll_left ();
1708                         return true;
1709                 }
1710                 return false;
1711
1712         case GDK_SCROLL_RIGHT:
1713                 scroll_right ();
1714                 return true;
1715
1716         case GDK_SCROLL_DOWN:
1717                 if (ev->state & Keyboard::TertiaryModifier) {
1718                         scroll_right ();
1719                         return true;
1720                 }
1721                 return false;
1722         }
1723
1724         return false;
1725 }
1726
1727
1728 void
1729 Mixer_UI::parameter_changed (string const & p)
1730 {
1731         if (p == "show-group-tabs") {
1732                 bool const s = _session->config.get_show_group_tabs ();
1733                 if (s) {
1734                         _group_tabs->show ();
1735                 } else {
1736                         _group_tabs->hide ();
1737                 }
1738         } else if (p == "default-narrow_ms") {
1739                 bool const s = Config->get_default_narrow_ms ();
1740                 for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1741                         (*i)->set_width_enum (s ? Narrow : Wide, this);
1742                 }
1743         } else if (p == "remote-model") {
1744                 reset_remote_control_ids ();
1745         }
1746 }
1747
1748 void
1749 Mixer_UI::set_route_group_activation (RouteGroup* g, bool a)
1750 {
1751         g->set_active (a, this);
1752 }
1753
1754 PluginSelector*
1755 Mixer_UI::plugin_selector()
1756 {
1757 #ifdef DEFER_PLUGIN_SELECTOR_LOAD
1758         if (!_plugin_selector)
1759                 _plugin_selector = new PluginSelector (PluginManager::instance());
1760 #endif
1761
1762         return _plugin_selector;
1763 }
1764
1765 void
1766 Mixer_UI::setup_track_display ()
1767 {
1768         track_model = ListStore::create (track_columns);
1769         track_display.set_model (track_model);
1770         track_display.append_column (_("Strips"), track_columns.text);
1771         track_display.append_column (_("Show"), track_columns.visible);
1772         track_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
1773         track_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
1774         track_display.get_column (0)->set_expand(true);
1775         track_display.get_column (1)->set_expand(false);
1776         track_display.set_name (X_("LHSList"));
1777         track_display.get_selection()->set_mode (Gtk::SELECTION_NONE);
1778         track_display.set_reorderable (true);
1779         track_display.set_headers_visible (true);
1780
1781         track_model->signal_row_deleted().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_delete));
1782         track_model->signal_rows_reordered().connect (sigc::mem_fun (*this, &Mixer_UI::track_list_reorder));
1783
1784         CellRendererToggle* track_list_visible_cell = dynamic_cast<CellRendererToggle*>(track_display.get_column_cell_renderer (1));
1785         track_list_visible_cell->property_activatable() = true;
1786         track_list_visible_cell->property_radio() = false;
1787         track_list_visible_cell->signal_toggled().connect (sigc::mem_fun (*this, &Mixer_UI::track_visibility_changed));
1788
1789         track_display.signal_button_press_event().connect (sigc::mem_fun (*this, &Mixer_UI::track_display_button_press), false);
1790
1791         track_display_scroller.add (track_display);
1792         track_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
1793
1794         VBox* v = manage (new VBox);
1795         v->show ();
1796         v->pack_start (track_display_scroller, true, true);
1797
1798         Button* b = manage (new Button);
1799         b->show ();
1800         Widget* w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
1801         w->show ();
1802         b->add (*w);
1803
1804         b->signal_clicked().connect (sigc::mem_fun (*this, &Mixer_UI::new_track_or_bus));
1805
1806         v->pack_start (*b, false, false);
1807
1808         track_display_frame.set_name("BaseFrame");
1809         track_display_frame.set_shadow_type (Gtk::SHADOW_IN);
1810         track_display_frame.add (*v);
1811
1812         track_display_scroller.show();
1813         track_display_frame.show();
1814         track_display.show();
1815 }
1816
1817 void
1818 Mixer_UI::new_track_or_bus ()
1819 {
1820         ARDOUR_UI::instance()->add_route (this);
1821 }
1822
1823
1824 void
1825 Mixer_UI::update_title ()
1826 {
1827         if (_session) {
1828                 string n;
1829
1830                 if (_session->snap_name() != _session->name()) {
1831                         n = _session->snap_name ();
1832                 } else {
1833                         n = _session->name ();
1834                 }
1835
1836                 if (_session->dirty ()) {
1837                         n = "*" + n;
1838                 }
1839
1840                 WindowTitle title (n);
1841                 title += S_("Window|Mixer");
1842                 title += Glib::get_application_name ();
1843                 set_title (title.get_string());
1844
1845         } else {
1846
1847                 WindowTitle title (S_("Window|Mixer"));
1848                 title += Glib::get_application_name ();
1849                 set_title (title.get_string());
1850         }
1851 }
1852
1853 MixerStrip*
1854 Mixer_UI::strip_by_x (int x)
1855 {
1856         for (list<MixerStrip*>::iterator i = strips.begin(); i != strips.end(); ++i) {
1857                 int x1, x2, y;
1858
1859                 (*i)->translate_coordinates (*this, 0, 0, x1, y);
1860                 x2 = x1 + (*i)->get_width();
1861
1862                 if (x >= x1 && x <= x2) {
1863                         return (*i);
1864                 }
1865         }
1866
1867         return 0;
1868 }
1869
1870 void
1871 Mixer_UI::set_route_targets_for_operation ()
1872 {
1873         _route_targets.clear ();
1874
1875         if (!_selection.empty()) {
1876                 _route_targets = _selection.routes;
1877                 return;
1878         }
1879
1880         /* try to get mixer strip at mouse */
1881
1882         int x, y;
1883         get_pointer (x, y);
1884
1885         MixerStrip* ms = strip_by_x (x);
1886
1887         if (ms) {
1888                 _route_targets.insert (ms);
1889         }
1890 }
1891
1892 void
1893 Mixer_UI::monitor_section_going_away ()
1894 {
1895         if (_monitor_section) {
1896                 out_packer.remove (_monitor_section->tearoff());
1897                 _monitor_section->set_session (0);
1898         }
1899 }