gtk2_ardour/mixer_ui.cc

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