gtk2_ardour/editor.cc

   1 /*
   2     Copyright (C) 2000-2009 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 /* Note: public Editor methods are documented in public_editor.h */
  21
  22 #include <stdint.h>
  23 #include <unistd.h>
  24 #include <cstdlib>
  25 #include <cmath>
  26 #include <string>
  27 #include <algorithm>
  28 #include <map>
  29
  30 #include "ardour_ui.h"
  31 /*
  32  * ardour_ui.h include was moved to the top of the list
  33  * due to a conflicting definition of 'Style' between
  34  * Apple's MacTypes.h and BarController.
  35  */
  36
  37 #include <boost/none.hpp>
  38
  39 #include <sigc++/bind.h>
  40
  41 #include "pbd/convert.h"
  42 #include "pbd/error.h"
  43 #include "pbd/enumwriter.h"
  44 #include "pbd/memento_command.h"
  45 #include "pbd/unknown_type.h"
  46 #include "pbd/unwind.h"
  47 #include "pbd/stacktrace.h"
  48 #include "pbd/timersub.h"
  49
  50 #include <glibmm/miscutils.h>
  51 #include <glibmm/uriutils.h>
  52 #include <gtkmm/image.h>
  53 #include <gdkmm/color.h>
  54 #include <gdkmm/bitmap.h>
  55
  56 #include <gtkmm/menu.h>
  57 #include <gtkmm/menuitem.h>
  58
  59 #include "gtkmm2ext/bindings.h"
  60 #include "gtkmm2ext/grouped_buttons.h"
  61 #include "gtkmm2ext/gtk_ui.h"
  62 #include <gtkmm2ext/keyboard.h>
  63 #include "gtkmm2ext/utils.h"
  64 #include "gtkmm2ext/window_title.h"
  65 #include "gtkmm2ext/choice.h"
  66 #include "gtkmm2ext/cell_renderer_pixbuf_toggle.h"
  67
  68 #include "ardour/analysis_graph.h"
  69 #include "ardour/audio_track.h"
  70 #include "ardour/audioengine.h"
  71 #include "ardour/audioregion.h"
  72 #include "ardour/lmath.h"
  73 #include "ardour/location.h"
  74 #include "ardour/profile.h"
  75 #include "ardour/route.h"
  76 #include "ardour/route_group.h"
  77 #include "ardour/session_playlists.h"
  78 #include "ardour/tempo.h"
  79 #include "ardour/utils.h"
  80 #include "ardour/vca_manager.h"
  81 #include "ardour/vca.h"
  82
  83 #include "canvas/debug.h"
  84 #include "canvas/text.h"
  85
  86 #include "control_protocol/control_protocol.h"
  87
  88 #include "actions.h"
  89 #include "analysis_window.h"
  90 #include "audio_clock.h"
  91 #include "audio_region_view.h"
  92 #include "audio_streamview.h"
  93 #include "audio_time_axis.h"
  94 #include "automation_time_axis.h"
  95 #include "bundle_manager.h"
  96 #include "crossfade_edit.h"
  97 #include "debug.h"
  98 #include "editing.h"
  99 #include "editor.h"
 100 #include "editor_cursors.h"
 101 #include "editor_drag.h"
 102 #include "editor_group_tabs.h"
 103 #include "editor_locations.h"
 104 #include "editor_regions.h"
 105 #include "editor_route_groups.h"
 106 #include "editor_routes.h"
 107 #include "editor_snapshots.h"
 108 #include "editor_summary.h"
 109 #include "export_report.h"
 110 #include "global_port_matrix.h"
 111 #include "gui_object.h"
 112 #include "gui_thread.h"
 113 #include "keyboard.h"
 114 #include "keyeditor.h"
 115 #include "luainstance.h"
 116 #include "marker.h"
 117 #include "midi_region_view.h"
 118 #include "midi_time_axis.h"
 119 #include "mixer_strip.h"
 120 #include "mixer_ui.h"
 121 #include "mouse_cursors.h"
 122 #include "note_base.h"
 123 #include "playlist_selector.h"
 124 #include "public_editor.h"
 125 #include "quantize_dialog.h"
 126 #include "region_layering_order_editor.h"
 127 #include "rgb_macros.h"
 128 #include "rhythm_ferret.h"
 129 #include "route_sorter.h"
 130 #include "selection.h"
 131 #include "simple_progress_dialog.h"
 132 #include "sfdb_ui.h"
 133 #include "tempo_lines.h"
 134 #include "time_axis_view.h"
 135 #include "timers.h"
 136 #include "tooltips.h"
 137 #include "ui_config.h"
 138 #include "utils.h"
 139 #include "vca_time_axis.h"
 140 #include "verbose_cursor.h"
 141
 142 #include "pbd/i18n.h"
 143
 144 using namespace std;
 145 using namespace ARDOUR;
 146 using namespace ARDOUR_UI_UTILS;
 147 using namespace PBD;
 148 using namespace Gtk;
 149 using namespace Glib;
 150 using namespace Gtkmm2ext;
 151 using namespace Editing;
 152
 153 using PBD::internationalize;
 154 using PBD::atoi;
 155 using Gtkmm2ext::Keyboard;
 156
 157 double Editor::timebar_height = 15.0;
 158
 159 static const gchar *_snap_type_strings[] = {
 160         N_("CD Frames"),
 161         N_("TC Frames"),
 162         N_("TC Seconds"),
 163         N_("TC Minutes"),
 164         N_("Seconds"),
 165         N_("Minutes"),
 166         N_("Beats/128"),
 167         N_("Beats/64"),
 168         N_("Beats/32"),
 169         N_("Beats/28"),
 170         N_("Beats/24"),
 171         N_("Beats/20"),
 172         N_("Beats/16"),
 173         N_("Beats/14"),
 174         N_("Beats/12"),
 175         N_("Beats/10"),
 176         N_("Beats/8"),
 177         N_("Beats/7"),
 178         N_("Beats/6"),
 179         N_("Beats/5"),
 180         N_("Beats/4"),
 181         N_("Beats/3"),
 182         N_("Beats/2"),
 183         N_("Beats"),
 184         N_("Bars"),
 185         N_("Marks"),
 186         N_("Region starts"),
 187         N_("Region ends"),
 188         N_("Region syncs"),
 189         N_("Region bounds"),
 190         0
 191 };
 192
 193 static const gchar *_snap_mode_strings[] = {
 194         N_("No Grid"),
 195         N_("Grid"),
 196         N_("Magnetic"),
 197         0
 198 };
 199
 200 static const gchar *_edit_point_strings[] = {
 201         N_("Playhead"),
 202         N_("Marker"),
 203         N_("Mouse"),
 204         0
 205 };
 206
 207 static const gchar *_edit_mode_strings[] = {
 208         N_("Slide"),
 209         N_("Splice"),
 210         N_("Ripple"),
 211         N_("Lock"),
 212         0
 213 };
 214
 215 static const gchar *_zoom_focus_strings[] = {
 216         N_("Left"),
 217         N_("Right"),
 218         N_("Center"),
 219         N_("Playhead"),
 220         N_("Mouse"),
 221         N_("Edit point"),
 222         0
 223 };
 224
 225 #ifdef USE_RUBBERBAND
 226 static const gchar *_rb_opt_strings[] = {
 227         N_("Mushy"),
 228         N_("Smooth"),
 229         N_("Balanced multitimbral mixture"),
 230         N_("Unpitched percussion with stable notes"),
 231         N_("Crisp monophonic instrumental"),
 232         N_("Unpitched solo percussion"),
 233         N_("Resample without preserving pitch"),
 234         0
 235 };
 236 #endif
 237
 238 #define COMBO_TRIANGLE_WIDTH 25 // ArdourButton _diameter (11) + 2 * arrow-padding (2*2) + 2 * text-padding (2*5)
 239
 240 Editor::Editor ()
 241         : PublicEditor (global_hpacker)
 242         , editor_mixer_strip_width (Wide)
 243         , constructed (false)
 244         , _playlist_selector (0)
 245         , no_save_visual (false)
 246         , leftmost_frame (0)
 247         , samples_per_pixel (2048)
 248         , zoom_focus (ZoomFocusPlayhead)
 249         , mouse_mode (MouseObject)
 250         , pre_internal_snap_type (SnapToBeat)
 251         , pre_internal_snap_mode (SnapOff)
 252         , internal_snap_type (SnapToBeat)
 253         , internal_snap_mode (SnapOff)
 254         , _join_object_range_state (JOIN_OBJECT_RANGE_NONE)
 255         , _notebook_shrunk (false)
 256         , location_marker_color (0)
 257         , location_range_color (0)
 258         , location_loop_color (0)
 259         , location_punch_color (0)
 260         , location_cd_marker_color (0)
 261         , entered_marker (0)
 262         , _show_marker_lines (false)
 263         , clicked_axisview (0)
 264         , clicked_routeview (0)
 265         , clicked_regionview (0)
 266         , clicked_selection (0)
 267         , clicked_control_point (0)
 268         , button_release_can_deselect (true)
 269         , _mouse_changed_selection (false)
 270         , region_edit_menu_split_item (0)
 271         , region_edit_menu_split_multichannel_item (0)
 272         , track_region_edit_playlist_menu (0)
 273         , track_edit_playlist_submenu (0)
 274         , track_selection_edit_playlist_submenu (0)
 275         , _popup_region_menu_item (0)
 276         , _track_canvas (0)
 277         , _track_canvas_viewport (0)
 278         , within_track_canvas (false)
 279         , _verbose_cursor (0)
 280         , tempo_group (0)
 281         , meter_group (0)
 282         , marker_group (0)
 283         , range_marker_group (0)
 284         , transport_marker_group (0)
 285         , cd_marker_group (0)
 286         , _time_markers_group (0)
 287         , hv_scroll_group (0)
 288         , h_scroll_group (0)
 289         , cursor_scroll_group (0)
 290         , no_scroll_group (0)
 291         , _trackview_group (0)
 292         , _drag_motion_group (0)
 293         , _canvas_drop_zone (0)
 294         , no_ruler_shown_update (false)
 295         ,  ruler_grabbed_widget (0)
 296         , ruler_dialog (0)
 297         , minsec_mark_interval (0)
 298         , minsec_mark_modulo (0)
 299         , minsec_nmarks (0)
 300         , timecode_mark_modulo (0)
 301         , timecode_nmarks (0)
 302         , _samples_ruler_interval (0)
 303         , bbt_bars (0)
 304         , bbt_nmarks (0)
 305         , bbt_bar_helper_on (0)
 306         , bbt_accent_modulo (0)
 307         , timecode_ruler (0)
 308         , bbt_ruler (0)
 309         , samples_ruler (0)
 310         , minsec_ruler (0)
 311         , visible_timebars (0)
 312         , editor_ruler_menu (0)
 313         , tempo_bar (0)
 314         , meter_bar (0)
 315         , marker_bar (0)
 316         , range_marker_bar (0)
 317         , transport_marker_bar (0)
 318         , cd_marker_bar (0)
 319         , minsec_label (_("Mins:Secs"))
 320         , bbt_label (_("Bars:Beats"))
 321         , timecode_label (_("Timecode"))
 322         , samples_label (_("Samples"))
 323         , tempo_label (_("Tempo"))
 324         , meter_label (_("Meter"))
 325         , mark_label (_("Location Markers"))
 326         , range_mark_label (_("Range Markers"))
 327         , transport_mark_label (_("Loop/Punch Ranges"))
 328         , cd_mark_label (_("CD Markers"))
 329         , videotl_label (_("Video Timeline"))
 330         , videotl_group (0)
 331         , playhead_cursor (0)
 332         , edit_packer (4, 4, true)
 333         , vertical_adjustment (0.0, 0.0, 10.0, 400.0)
 334         , horizontal_adjustment (0.0, 0.0, 1e16)
 335         , unused_adjustment (0.0, 0.0, 10.0, 400.0)
 336         , controls_layout (unused_adjustment, vertical_adjustment)
 337         , _scroll_callbacks (0)
 338         , _visible_canvas_width (0)
 339         , _visible_canvas_height (0)
 340         , _full_canvas_height (0)
 341         , edit_controls_left_menu (0)
 342         , edit_controls_right_menu (0)
 343         , last_update_frame (0)
 344         , cut_buffer_start (0)
 345         , cut_buffer_length (0)
 346         , button_bindings (0)
 347         , last_paste_pos (0)
 348         , paste_count (0)
 349         , sfbrowser (0)
 350         , current_interthread_info (0)
 351         , analysis_window (0)
 352         , select_new_marker (false)
 353         , last_scrub_x (0)
 354         , scrubbing_direction (0)
 355         , scrub_reversals (0)
 356         , scrub_reverse_distance (0)
 357         , have_pending_keyboard_selection (false)
 358         , pending_keyboard_selection_start (0)
 359         , _snap_type (SnapToBeat)
 360         , _snap_mode (SnapOff)
 361         , snap_threshold (5.0)
 362         , ignore_gui_changes (false)
 363         , _drags (new DragManager (this))
 364         , lock_dialog (0)
 365           /* , last_event_time { 0, 0 } */ /* this initialization style requires C++11 */
 366         , _dragging_playhead (false)
 367         , _dragging_edit_point (false)
 368         , _show_measures (true)
 369         , _follow_playhead (true)
 370         , _stationary_playhead (false)
 371         , _maximised (false)
 372         , tempo_lines (0)
 373         , global_rect_group (0)
 374         , time_line_group (0)
 375         , tempo_marker_menu (0)
 376         , meter_marker_menu (0)
 377         , marker_menu (0)
 378         , range_marker_menu (0)
 379         , transport_marker_menu (0)
 380         , new_transport_marker_menu (0)
 381         , cd_marker_menu (0)
 382         , marker_menu_item (0)
 383         , bbt_beat_subdivision (4)
 384         , _visible_track_count (-1)
 385         ,  toolbar_selection_clock_table (2,3)
 386         ,  automation_mode_button (_("mode"))
 387         ,  _toolbar_viewport (*manage (new Gtk::Adjustment (0, 0, 1e10)), *manage (new Gtk::Adjustment (0, 0, 1e10)))
 388         , selection (new Selection (this))
 389         , cut_buffer (new Selection (this))
 390         , _selection_memento (new SelectionMemento())
 391         , _all_region_actions_sensitized (false)
 392         , _ignore_region_action (false)
 393         , _last_region_menu_was_main (false)
 394         , _ignore_follow_edits (false)
 395         , cd_marker_bar_drag_rect (0)
 396         , range_bar_drag_rect (0)
 397         , transport_bar_drag_rect (0)
 398         , transport_bar_range_rect (0)
 399         , transport_bar_preroll_rect (0)
 400         , transport_bar_postroll_rect (0)
 401         , transport_loop_range_rect (0)
 402         , transport_punch_range_rect (0)
 403         , transport_punchin_line (0)
 404         , transport_punchout_line (0)
 405         , transport_preroll_rect (0)
 406         , transport_postroll_rect (0)
 407         , temp_location (0)
 408         , rubberband_rect (0)
 409         , _route_groups (0)
 410         , _routes (0)
 411         , _regions (0)
 412         , _snapshots (0)
 413         , _locations (0)
 414         , autoscroll_horizontal_allowed (false)
 415         , autoscroll_vertical_allowed (false)
 416         , autoscroll_cnt (0)
 417         , autoscroll_widget (0)
 418         , show_gain_after_trim (false)
 419         , selection_op_cmd_depth (0)
 420         , selection_op_history_it (0)
 421         , no_save_instant (false)
 422         , current_timefx (0)
 423         , current_mixer_strip (0)
 424         , show_editor_mixer_when_tracks_arrive (false)
 425         ,  nudge_clock (new AudioClock (X_("nudge"), false, X_("nudge"), true, false, true))
 426         , current_stepping_trackview (0)
 427         , last_track_height_step_timestamp (0)
 428         , entered_track (0)
 429         , entered_regionview (0)
 430         , clear_entered_track (false)
 431         , _edit_point (EditAtMouse)
 432         , meters_running (false)
 433         , rhythm_ferret (0)
 434         , _have_idled (false)
 435         , resize_idle_id (-1)
 436         , _pending_resize_amount (0)
 437         , _pending_resize_view (0)
 438         , _pending_locate_request (false)
 439         , _pending_initial_locate (false)
 440         , _summary (0)
 441         , _group_tabs (0)
 442         , _last_motion_y (0)
 443         , layering_order_editor (0)
 444         , _last_cut_copy_source_track (0)
 445         , _region_selection_change_updates_region_list (true)
 446         , _cursors (0)
 447         , _following_mixer_selection (false)
 448         , _control_point_toggled_on_press (false)
 449         , _stepping_axis_view (0)
 450         , quantize_dialog (0)
 451         , _main_menu_disabler (0)
 452         , myactions (X_("editor"))
 453 {
 454         /* we are a singleton */
 455
 456         PublicEditor::_instance = this;
 457
 458         _have_idled = false;
 459
 460         last_event_time.tv_sec = 0;
 461         last_event_time.tv_usec = 0;
 462
 463         selection_op_history.clear();
 464         before.clear();
 465
 466         snap_type_strings =  I18N (_snap_type_strings);
 467         snap_mode_strings =  I18N (_snap_mode_strings);
 468         zoom_focus_strings = I18N (_zoom_focus_strings);
 469         edit_mode_strings = I18N (_edit_mode_strings);
 470         edit_point_strings = I18N (_edit_point_strings);
 471 #ifdef USE_RUBBERBAND
 472         rb_opt_strings = I18N (_rb_opt_strings);
 473         rb_current_opt = 4;
 474 #endif
 475
 476         build_edit_mode_menu();
 477         build_zoom_focus_menu();
 478         build_track_count_menu();
 479         build_snap_mode_menu();
 480         build_snap_type_menu();
 481         build_edit_point_menu();
 482
 483         location_marker_color = UIConfiguration::instance().color ("location marker");
 484         location_range_color = UIConfiguration::instance().color ("location range");
 485         location_cd_marker_color = UIConfiguration::instance().color ("location cd marker");
 486         location_loop_color = UIConfiguration::instance().color ("location loop");
 487         location_punch_color = UIConfiguration::instance().color ("location punch");
 488
 489         timebar_height = std::max(12., ceil (15. * ARDOUR_UI::ui_scale));
 490
 491         TimeAxisView::setup_sizes ();
 492         ArdourMarker::setup_sizes (timebar_height);
 493         TempoCurve::setup_sizes (timebar_height);
 494
 495         bbt_label.set_name ("EditorRulerLabel");
 496         bbt_label.set_size_request (-1, (int)timebar_height);
 497         bbt_label.set_alignment (1.0, 0.5);
 498         bbt_label.set_padding (5,0);
 499         bbt_label.hide ();
 500         bbt_label.set_no_show_all();
 501         minsec_label.set_name ("EditorRulerLabel");
 502         minsec_label.set_size_request (-1, (int)timebar_height);
 503         minsec_label.set_alignment (1.0, 0.5);
 504         minsec_label.set_padding (5,0);
 505         minsec_label.hide ();
 506         minsec_label.set_no_show_all();
 507         timecode_label.set_name ("EditorRulerLabel");
 508         timecode_label.set_size_request (-1, (int)timebar_height);
 509         timecode_label.set_alignment (1.0, 0.5);
 510         timecode_label.set_padding (5,0);
 511         timecode_label.hide ();
 512         timecode_label.set_no_show_all();
 513         samples_label.set_name ("EditorRulerLabel");
 514         samples_label.set_size_request (-1, (int)timebar_height);
 515         samples_label.set_alignment (1.0, 0.5);
 516         samples_label.set_padding (5,0);
 517         samples_label.hide ();
 518         samples_label.set_no_show_all();
 519
 520         tempo_label.set_name ("EditorRulerLabel");
 521         tempo_label.set_size_request (-1, (int)timebar_height);
 522         tempo_label.set_alignment (1.0, 0.5);
 523         tempo_label.set_padding (5,0);
 524         tempo_label.hide();
 525         tempo_label.set_no_show_all();
 526
 527         meter_label.set_name ("EditorRulerLabel");
 528         meter_label.set_size_request (-1, (int)timebar_height);
 529         meter_label.set_alignment (1.0, 0.5);
 530         meter_label.set_padding (5,0);
 531         meter_label.hide();
 532         meter_label.set_no_show_all();
 533
 534         if (Profile->get_trx()) {
 535                 mark_label.set_text (_("Markers"));
 536         }
 537         mark_label.set_name ("EditorRulerLabel");
 538         mark_label.set_size_request (-1, (int)timebar_height);
 539         mark_label.set_alignment (1.0, 0.5);
 540         mark_label.set_padding (5,0);
 541         mark_label.hide();
 542         mark_label.set_no_show_all();
 543
 544         cd_mark_label.set_name ("EditorRulerLabel");
 545         cd_mark_label.set_size_request (-1, (int)timebar_height);
 546         cd_mark_label.set_alignment (1.0, 0.5);
 547         cd_mark_label.set_padding (5,0);
 548         cd_mark_label.hide();
 549         cd_mark_label.set_no_show_all();
 550
 551         videotl_bar_height = 4;
 552         videotl_label.set_name ("EditorRulerLabel");
 553         videotl_label.set_size_request (-1, (int)timebar_height * videotl_bar_height);
 554         videotl_label.set_alignment (1.0, 0.5);
 555         videotl_label.set_padding (5,0);
 556         videotl_label.hide();
 557         videotl_label.set_no_show_all();
 558
 559         range_mark_label.set_name ("EditorRulerLabel");
 560         range_mark_label.set_size_request (-1, (int)timebar_height);
 561         range_mark_label.set_alignment (1.0, 0.5);
 562         range_mark_label.set_padding (5,0);
 563         range_mark_label.hide();
 564         range_mark_label.set_no_show_all();
 565
 566         transport_mark_label.set_name ("EditorRulerLabel");
 567         transport_mark_label.set_size_request (-1, (int)timebar_height);
 568         transport_mark_label.set_alignment (1.0, 0.5);
 569         transport_mark_label.set_padding (5,0);
 570         transport_mark_label.hide();
 571         transport_mark_label.set_no_show_all();
 572
 573         initialize_canvas ();
 574
 575         CairoWidget::set_focus_handler (sigc::mem_fun (*this, &Editor::reset_focus));
 576
 577         _summary = new EditorSummary (this);
 578
 579         selection->TimeChanged.connect (sigc::mem_fun(*this, &Editor::time_selection_changed));
 580         selection->TracksChanged.connect (sigc::mem_fun(*this, &Editor::track_selection_changed));
 581
 582         editor_regions_selection_changed_connection = selection->RegionsChanged.connect (sigc::mem_fun(*this, &Editor::region_selection_changed));
 583
 584         selection->PointsChanged.connect (sigc::mem_fun(*this, &Editor::point_selection_changed));
 585         selection->MarkersChanged.connect (sigc::mem_fun(*this, &Editor::marker_selection_changed));
 586
 587         edit_controls_vbox.set_spacing (0);
 588         vertical_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &Editor::tie_vertical_scrolling), true);
 589         _track_canvas->signal_map_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_map_handler));
 590
 591         HBox* h = manage (new HBox);
 592         _group_tabs = new EditorGroupTabs (this);
 593         if (!ARDOUR::Profile->get_trx()) {
 594                 h->pack_start (*_group_tabs, PACK_SHRINK);
 595         }
 596         h->pack_start (edit_controls_vbox);
 597         controls_layout.add (*h);
 598
 599         controls_layout.set_name ("EditControlsBase");
 600         controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK|Gdk::SCROLL_MASK);
 601         controls_layout.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::edit_controls_button_release));
 602         controls_layout.signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::control_layout_scroll), false);
 603
 604         _cursors = new MouseCursors;
 605         _cursors->set_cursor_set (UIConfiguration::instance().get_icon_set());
 606         cerr << "Set cursor set to " << UIConfiguration::instance().get_icon_set() << endl;
 607
 608         /* Push default cursor to ever-present bottom of cursor stack. */
 609         push_canvas_cursor(_cursors->grabber);
 610
 611         ArdourCanvas::GtkCanvas* time_pad = manage (new ArdourCanvas::GtkCanvas ());
 612
 613         ArdourCanvas::Line* pad_line_1 = new ArdourCanvas::Line (time_pad->root());
 614         pad_line_1->set (ArdourCanvas::Duple (0.0, 1.0), ArdourCanvas::Duple (100.0, 1.0));
 615         pad_line_1->set_outline_color (0xFF0000FF);
 616         pad_line_1->show();
 617
 618         // CAIROCANVAS
 619         time_pad->show();
 620
 621         edit_packer.set_col_spacings (0);
 622         edit_packer.set_row_spacings (0);
 623         edit_packer.set_homogeneous (false);
 624         edit_packer.set_border_width (0);
 625         edit_packer.set_name ("EditorWindow");
 626
 627         time_bars_event_box.add (time_bars_vbox);
 628         time_bars_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 629         time_bars_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 630
 631         /* labels for the time bars */
 632         edit_packer.attach (time_bars_event_box,     0, 1, 0, 1,    FILL,        SHRINK, 0, 0);
 633         /* track controls */
 634         edit_packer.attach (controls_layout,         0, 1, 1, 2,    FILL,        FILL|EXPAND, 0, 0);
 635         /* canvas */
 636         edit_packer.attach (*_track_canvas_viewport,  1, 2, 0, 2,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 637
 638         bottom_hbox.set_border_width (2);
 639         bottom_hbox.set_spacing (3);
 640
 641         _route_groups = new EditorRouteGroups (this);
 642         _routes = new EditorRoutes (this);
 643         _regions = new EditorRegions (this);
 644         _snapshots = new EditorSnapshots (this);
 645         _locations = new EditorLocations (this);
 646
 647         /* these are static location signals */
 648
 649         Location::start_changed.connect (*this, invalidator (*this), boost::bind (&Editor::location_changed, this, _1), gui_context());
 650         Location::end_changed.connect (*this, invalidator (*this), boost::bind (&Editor::location_changed, this, _1), gui_context());
 651         Location::changed.connect (*this, invalidator (*this), boost::bind (&Editor::location_changed, this, _1), gui_context());
 652
 653         add_notebook_page (_("Regions"), _regions->widget ());
 654         add_notebook_page (_("Tracks & Busses"), _routes->widget ());
 655         add_notebook_page (_("Snapshots"), _snapshots->widget ());
 656         add_notebook_page (_("Track & Bus Groups"), _route_groups->widget ());
 657         add_notebook_page (_("Ranges & Marks"), _locations->widget ());
 658
 659         _the_notebook.set_show_tabs (true);
 660         _the_notebook.set_scrollable (true);
 661         _the_notebook.popup_disable ();
 662         _the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 663         _the_notebook.show_all ();
 664
 665         _notebook_shrunk = false;
 666
 667
 668         /* Pick up some settings we need to cache, early */
 669
 670         XMLNode* settings = ARDOUR_UI::instance()->editor_settings();
 671         XMLProperty* prop;
 672
 673         if (settings && (prop = settings->property ("notebook-shrunk"))) {
 674                 _notebook_shrunk = string_is_affirmative (prop->value ());
 675         }
 676
 677         editor_summary_pane.set_check_divider_position (true);
 678         editor_summary_pane.add (edit_packer);
 679
 680         Button* summary_arrows_left_left = manage (new Button);
 681         summary_arrows_left_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
 682         summary_arrows_left_left->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), LEFT)));
 683         summary_arrows_left_left->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 684
 685         Button* summary_arrows_left_right = manage (new Button);
 686         summary_arrows_left_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
 687         summary_arrows_left_right->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), RIGHT)));
 688         summary_arrows_left_right->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 689
 690         VBox* summary_arrows_left = manage (new VBox);
 691         summary_arrows_left->pack_start (*summary_arrows_left_left);
 692         summary_arrows_left->pack_start (*summary_arrows_left_right);
 693
 694         Button* summary_arrows_right_up = manage (new Button);
 695         summary_arrows_right_up->add (*manage (new Arrow (ARROW_UP, SHADOW_NONE)));
 696         summary_arrows_right_up->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), UP)));
 697         summary_arrows_right_up->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 698
 699         Button* summary_arrows_right_down = manage (new Button);
 700         summary_arrows_right_down->add (*manage (new Arrow (ARROW_DOWN, SHADOW_NONE)));
 701         summary_arrows_right_down->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), DOWN)));
 702         summary_arrows_right_down->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 703
 704         VBox* summary_arrows_right = manage (new VBox);
 705         summary_arrows_right->pack_start (*summary_arrows_right_up);
 706         summary_arrows_right->pack_start (*summary_arrows_right_down);
 707
 708         Frame* summary_frame = manage (new Frame);
 709         summary_frame->set_shadow_type (Gtk::SHADOW_ETCHED_IN);
 710
 711         summary_frame->add (*_summary);
 712         summary_frame->show ();
 713
 714         _summary_hbox.pack_start (*summary_arrows_left, false, false);
 715         _summary_hbox.pack_start (*summary_frame, true, true);
 716         _summary_hbox.pack_start (*summary_arrows_right, false, false);
 717
 718         if (!ARDOUR::Profile->get_trx()) {
 719                 editor_summary_pane.add (_summary_hbox);
 720         }
 721
 722         edit_pane.set_check_divider_position (true);
 723         edit_pane.add (editor_summary_pane);
 724         if (!ARDOUR::Profile->get_trx()) {
 725                 edit_pane.add (_the_notebook);
 726         }
 727
 728         edit_pane.set_drag_cursor (*_cursors->expand_left_right);
 729         edit_pane.set_child_minsize (_the_notebook, 30); /* rough guess at width of notebook tabs */
 730         editor_summary_pane.set_drag_cursor (*_cursors->expand_up_down);
 731
 732         float fract;
 733
 734         {
 735                 LocaleGuard lg;
 736
 737                 if (!settings || ((prop = settings->property ("edit-horizontal-pane-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 738                         /* initial allocation is 90% to canvas, 10% to notebook */
 739                         edit_pane.set_divider (0, 0.90);
 740                 } else {
 741                         edit_pane.set_divider (0, fract);
 742                 }
 743
 744                 if (!settings || ((prop = settings->property ("edit-vertical-pane-pos")) == 0) || ((fract = atof (prop->value())) > 1.0)) {
 745                         /* initial allocation is 90% to canvas, 10% to summary */
 746                         editor_summary_pane.set_divider (0, 0.90);
 747                 } else {
 748
 749                         editor_summary_pane.set_divider (0, fract);
 750                 }
 751         }
 752
 753         top_hbox.pack_start (toolbar_frame);
 754
 755         HBox *hbox = manage (new HBox);
 756         hbox->pack_start (edit_pane, true, true);
 757
 758         global_vpacker.pack_start (top_hbox, false, false);
 759         global_vpacker.pack_start (*hbox, true, true);
 760         global_hpacker.pack_start (global_vpacker, true, true);
 761
 762         /* need to show the "contents" widget so that notebook will show if tab is switched to
 763          */
 764
 765         global_hpacker.show ();
 766
 767         /* register actions now so that set_state() can find them and set toggles/checks etc */
 768
 769         register_actions ();
 770         load_bindings ();
 771
 772         setup_toolbar ();
 773
 774         _playlist_selector = new PlaylistSelector();
 775         _playlist_selector->signal_delete_event().connect (sigc::bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 776
 777         RegionView::RegionViewGoingAway.connect (*this, invalidator (*this),  boost::bind (&Editor::catch_vanishing_regionview, this, _1), gui_context());
 778
 779         /* nudge stuff */
 780
 781         nudge_forward_button.set_name ("nudge button");
 782         nudge_forward_button.set_icon(ArdourIcon::NudgeRight);
 783
 784         nudge_backward_button.set_name ("nudge button");
 785         nudge_backward_button.set_icon(ArdourIcon::NudgeLeft);
 786
 787         fade_context_menu.set_name ("ArdourContextMenu");
 788
 789         Gtkmm2ext::Keyboard::the_keyboard().ZoomVerticalModifierReleased.connect (sigc::mem_fun (*this, &Editor::zoom_vertical_modifier_released));
 790
 791         /* allow external control surfaces/protocols to do various things */
 792
 793         ControlProtocol::ZoomToSession.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_session, this), gui_context());
 794         ControlProtocol::ZoomIn.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_step, this, false), gui_context());
 795         ControlProtocol::ZoomOut.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_step, this, true), gui_context());
 796         ControlProtocol::Undo.connect (*this, invalidator (*this), boost::bind (&Editor::undo, this, true), gui_context());
 797         ControlProtocol::Redo.connect (*this, invalidator (*this), boost::bind (&Editor::redo, this, true), gui_context());
 798         ControlProtocol::ScrollTimeline.connect (*this, invalidator (*this), boost::bind (&Editor::control_scroll, this, _1), gui_context());
 799         ControlProtocol::StepTracksUp.connect (*this, invalidator (*this), boost::bind (&Editor::control_step_tracks_up, this), gui_context());
 800         ControlProtocol::StepTracksDown.connect (*this, invalidator (*this), boost::bind (&Editor::control_step_tracks_down, this), gui_context());
 801         ControlProtocol::GotoView.connect (*this, invalidator (*this), boost::bind (&Editor::control_view, this, _1), gui_context());
 802         ControlProtocol::CloseDialog.connect (*this, invalidator (*this), Keyboard::close_current_dialog, gui_context());
 803         ControlProtocol::VerticalZoomInAll.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_in_all, this), gui_context());
 804         ControlProtocol::VerticalZoomOutAll.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_out_all, this), gui_context());
 805         ControlProtocol::VerticalZoomInSelected.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_in_selected, this), gui_context());
 806         ControlProtocol::VerticalZoomOutSelected.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_out_selected, this), gui_context());
 807
 808         ControlProtocol::AddStripableToSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Add), gui_context());
 809         ControlProtocol::RemoveStripableFromSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Toggle), gui_context());
 810         ControlProtocol::SetStripableSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Set), gui_context());
 811         ControlProtocol::ToggleStripableSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Toggle), gui_context());
 812         ControlProtocol::ClearStripableSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_unselect, this), gui_context());
 813
 814         BasicUI::AccessAction.connect (*this, invalidator (*this), boost::bind (&Editor::access_action, this, _1, _2), gui_context());
 815
 816         /* handle escape */
 817
 818         ARDOUR_UI::instance()->Escape.connect (*this, invalidator (*this), boost::bind (&Editor::escape, this), gui_context());
 819
 820         /* problematic: has to return a value and thus cannot be x-thread */
 821
 822         Session::AskAboutPlaylistDeletion.connect_same_thread (*this, boost::bind (&Editor::playlist_deletion_dialog, this, _1));
 823
 824         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Editor::parameter_changed, this, _1), gui_context());
 825         UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (*this, &Editor::ui_parameter_changed));
 826
 827         TimeAxisView::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Editor::timeaxisview_deleted, this, _1), gui_context());
 828
 829         _ignore_region_action = false;
 830         _last_region_menu_was_main = false;
 831         _popup_region_menu_item = 0;
 832
 833         _ignore_follow_edits = false;
 834
 835         _show_marker_lines = false;
 836
 837         /* Button bindings */
 838
 839         button_bindings = new Bindings ("editor-mouse");
 840
 841         XMLNode* node = button_settings();
 842         if (node) {
 843                 for (XMLNodeList::const_iterator i = node->children().begin(); i != node->children().end(); ++i) {
 844                         button_bindings->load_operation (**i);
 845                 }
 846         }
 847
 848         constructed = true;
 849
 850         /* grab current parameter state */
 851         boost::function<void (string)> pc (boost::bind (&Editor::ui_parameter_changed, this, _1));
 852         UIConfiguration::instance().map_parameters (pc);
 853
 854         setup_fade_images ();
 855
 856         LuaInstance::instance(); // instantiate
 857         LuaInstance::instance()->ActionChanged.connect (sigc::mem_fun (*this, &Editor::set_script_action_name));
 858
 859         instant_save ();
 860 }
 861
 862 Editor::~Editor()
 863 {
 864         delete button_bindings;
 865         delete _routes;
 866         delete _route_groups;
 867         delete _track_canvas_viewport;
 868         delete _drags;
 869         delete nudge_clock;
 870         delete _verbose_cursor;
 871         delete quantize_dialog;
 872         delete _summary;
 873         delete _group_tabs;
 874         delete _regions;
 875         delete _snapshots;
 876         delete _locations;
 877         delete _playlist_selector;
 878
 879         for (list<XMLNode *>::iterator i = selection_op_history.begin(); i != selection_op_history.end(); ++i) {
 880                 delete *i;
 881         }
 882 }
 883
 884 XMLNode*
 885 Editor::button_settings () const
 886 {
 887         XMLNode* settings = ARDOUR_UI::instance()->editor_settings();
 888         XMLNode* node = find_named_node (*settings, X_("Buttons"));
 889
 890         if (!node) {
 891                 node = new XMLNode (X_("Buttons"));
 892         }
 893
 894         return node;
 895 }
 896
 897 bool
 898 Editor::get_smart_mode () const
 899 {
 900         return ((current_mouse_mode() == Editing::MouseObject) && smart_mode_action->get_active());
 901 }
 902
 903 void
 904 Editor::catch_vanishing_regionview (RegionView *rv)
 905 {
 906         /* note: the selection will take care of the vanishing
 907            audioregionview by itself.
 908         */
 909
 910         if (_drags->active() && _drags->have_item (rv->get_canvas_group()) && !_drags->ending()) {
 911                 _drags->abort ();
 912         }
 913
 914         if (clicked_regionview == rv) {
 915                 clicked_regionview = 0;
 916         }
 917
 918         if (entered_regionview == rv) {
 919                 set_entered_regionview (0);
 920         }
 921
 922         if (!_all_region_actions_sensitized) {
 923                 sensitize_all_region_actions (true);
 924         }
 925 }
 926
 927 void
 928 Editor::set_entered_regionview (RegionView* rv)
 929 {
 930         if (rv == entered_regionview) {
 931                 return;
 932         }
 933
 934         if (entered_regionview) {
 935                 entered_regionview->exited ();
 936         }
 937
 938         entered_regionview = rv;
 939
 940         if (entered_regionview  != 0) {
 941                 entered_regionview->entered ();
 942         }
 943
 944         if (!_all_region_actions_sensitized && _last_region_menu_was_main) {
 945                 /* This RegionView entry might have changed what region actions
 946                    are allowed, so sensitize them all in case a key is pressed.
 947                 */
 948                 sensitize_all_region_actions (true);
 949         }
 950 }
 951
 952 void
 953 Editor::set_entered_track (TimeAxisView* tav)
 954 {
 955         if (entered_track) {
 956                 entered_track->exited ();
 957         }
 958
 959         entered_track = tav;
 960
 961         if (entered_track) {
 962                 entered_track->entered ();
 963         }
 964 }
 965
 966 void
 967 Editor::instant_save ()
 968 {
 969         if (!constructed || !ARDOUR_UI::instance()->session_loaded || no_save_instant) {
 970                 return;
 971         }
 972
 973         if (_session) {
 974                 _session->add_instant_xml(get_state());
 975         } else {
 976                 Config->add_instant_xml(get_state());
 977         }
 978 }
 979
 980 void
 981 Editor::control_vertical_zoom_in_all ()
 982 {
 983         tav_zoom_smooth (false, true);
 984 }
 985
 986 void
 987 Editor::control_vertical_zoom_out_all ()
 988 {
 989         tav_zoom_smooth (true, true);
 990 }
 991
 992 void
 993 Editor::control_vertical_zoom_in_selected ()
 994 {
 995         tav_zoom_smooth (false, false);
 996 }
 997
 998 void
 999 Editor::control_vertical_zoom_out_selected ()
1000 {
1001         tav_zoom_smooth (true, false);
1002 }
1003
1004 void
1005 Editor::control_view (uint32_t view)
1006 {
1007         goto_visual_state (view);
1008 }
1009
1010 void
1011 Editor::control_unselect ()
1012 {
1013         selection->clear_tracks ();
1014 }
1015
1016 void
1017 Editor::control_select (boost::shared_ptr<Stripable> s, Selection::Operation op)
1018 {
1019         TimeAxisView* tav = axis_view_from_stripable (s);
1020
1021         if (tav) {
1022                 switch (op) {
1023                 case Selection::Add:
1024                         selection->add (tav);
1025                         break;
1026                 case Selection::Toggle:
1027                         selection->toggle (tav);
1028                         break;
1029                 case Selection::Extend:
1030                         break;
1031                 case Selection::Set:
1032                         selection->set (tav);
1033                         break;
1034                 }
1035         } else {
1036                 selection->clear_tracks ();
1037         }
1038 }
1039
1040 void
1041 Editor::control_step_tracks_up ()
1042 {
1043         scroll_tracks_up_line ();
1044 }
1045
1046 void
1047 Editor::control_step_tracks_down ()
1048 {
1049         scroll_tracks_down_line ();
1050 }
1051
1052 void
1053 Editor::control_scroll (float fraction)
1054 {
1055         ENSURE_GUI_THREAD (*this, &Editor::control_scroll, fraction)
1056
1057         if (!_session) {
1058                 return;
1059         }
1060
1061         double step = fraction * current_page_samples();
1062
1063         /*
1064                 _control_scroll_target is an optional<T>
1065
1066                 it acts like a pointer to an framepos_t, with
1067                 a operator conversion to boolean to check
1068                 that it has a value could possibly use
1069                 playhead_cursor->current_frame to store the
1070                 value and a boolean in the class to know
1071                 when it's out of date
1072         */
1073
1074         if (!_control_scroll_target) {
1075                 _control_scroll_target = _session->transport_frame();
1076                 _dragging_playhead = true;
1077         }
1078
1079         if ((fraction < 0.0f) && (*_control_scroll_target <= (framepos_t) fabs(step))) {
1080                 *_control_scroll_target = 0;
1081         } else if ((fraction > 0.0f) && (max_framepos - *_control_scroll_target < step)) {
1082                 *_control_scroll_target = max_framepos - (current_page_samples()*2); // allow room for slop in where the PH is on the screen
1083         } else {
1084                 *_control_scroll_target += (framepos_t) trunc (step);
1085         }
1086
1087         /* move visuals, we'll catch up with it later */
1088
1089         playhead_cursor->set_position (*_control_scroll_target);
1090         UpdateAllTransportClocks (*_control_scroll_target);
1091
1092         if (*_control_scroll_target > (current_page_samples() / 2)) {
1093                 /* try to center PH in window */
1094                 reset_x_origin (*_control_scroll_target - (current_page_samples()/2));
1095         } else {
1096                 reset_x_origin (0);
1097         }
1098
1099         /*
1100                 Now we do a timeout to actually bring the session to the right place
1101                 according to the playhead. This is to avoid reading disk buffers on every
1102                 call to control_scroll, which is driven by ScrollTimeline and therefore
1103                 probably by a control surface wheel which can generate lots of events.
1104         */
1105         /* cancel the existing timeout */
1106
1107         control_scroll_connection.disconnect ();
1108
1109         /* add the next timeout */
1110
1111         control_scroll_connection = Glib::signal_timeout().connect (sigc::bind (sigc::mem_fun (*this, &Editor::deferred_control_scroll), *_control_scroll_target), 250);
1112 }
1113
1114 bool
1115 Editor::deferred_control_scroll (framepos_t /*target*/)
1116 {
1117         _session->request_locate (*_control_scroll_target, _session->transport_rolling());
1118         // reset for next stream
1119         _control_scroll_target = boost::none;
1120         _dragging_playhead = false;
1121         return false;
1122 }
1123
1124 void
1125 Editor::access_action (std::string action_group, std::string action_item)
1126 {
1127         if (!_session) {
1128                 return;
1129         }
1130
1131         ENSURE_GUI_THREAD (*this, &Editor::access_action, action_group, action_item)
1132
1133         RefPtr<Action> act;
1134         act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
1135
1136         if (act) {
1137                 act->activate();
1138         }
1139 }
1140
1141 void
1142 Editor::on_realize ()
1143 {
1144         Realized ();
1145
1146         if (UIConfiguration::instance().get_lock_gui_after_seconds()) {
1147                 start_lock_event_timing ();
1148         }
1149 }
1150
1151 void
1152 Editor::start_lock_event_timing ()
1153 {
1154         /* check if we should lock the GUI every 30 seconds */
1155
1156         Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::lock_timeout_callback), 30 * 1000);
1157 }
1158
1159 bool
1160 Editor::generic_event_handler (GdkEvent* ev)
1161 {
1162         switch (ev->type) {
1163         case GDK_BUTTON_PRESS:
1164         case GDK_BUTTON_RELEASE:
1165         case GDK_MOTION_NOTIFY:
1166         case GDK_KEY_PRESS:
1167         case GDK_KEY_RELEASE:
1168                 if (contents().is_mapped()) {
1169                         gettimeofday (&last_event_time, 0);
1170                 }
1171                 break;
1172
1173         case GDK_LEAVE_NOTIFY:
1174                 switch (ev->crossing.detail) {
1175                 case GDK_NOTIFY_UNKNOWN:
1176                 case GDK_NOTIFY_INFERIOR:
1177                 case GDK_NOTIFY_ANCESTOR:
1178                         break;
1179                 case GDK_NOTIFY_VIRTUAL:
1180                 case GDK_NOTIFY_NONLINEAR:
1181                 case GDK_NOTIFY_NONLINEAR_VIRTUAL:
1182                         /* leaving window, so reset focus, thus ending any and
1183                            all text entry operations.
1184                         */
1185                         reset_focus (&contents());
1186                         break;
1187                 }
1188                 break;
1189
1190         default:
1191                 break;
1192         }
1193
1194         return false;
1195 }
1196
1197 bool
1198 Editor::lock_timeout_callback ()
1199 {
1200         struct timeval now, delta;
1201
1202         gettimeofday (&now, 0);
1203
1204         timersub (&now, &last_event_time, &delta);
1205
1206         if (delta.tv_sec > (time_t) UIConfiguration::instance().get_lock_gui_after_seconds()) {
1207                 lock ();
1208                 /* don't call again. Returning false will effectively
1209                    disconnect us from the timer callback.
1210
1211                    unlock() will call start_lock_event_timing() to get things
1212                    started again.
1213                 */
1214                 return false;
1215         }
1216
1217         return true;
1218 }
1219
1220 void
1221 Editor::map_position_change (framepos_t frame)
1222 {
1223         ENSURE_GUI_THREAD (*this, &Editor::map_position_change, frame)
1224
1225         if (_session == 0) {
1226                 return;
1227         }
1228
1229         if (_follow_playhead) {
1230                 center_screen (frame);
1231         }
1232
1233         playhead_cursor->set_position (frame);
1234 }
1235
1236 void
1237 Editor::center_screen (framepos_t frame)
1238 {
1239         framecnt_t const page = _visible_canvas_width * samples_per_pixel;
1240
1241         /* if we're off the page, then scroll.
1242          */
1243
1244         if (frame < leftmost_frame || frame >= leftmost_frame + page) {
1245                 center_screen_internal (frame, page);
1246         }
1247 }
1248
1249 void
1250 Editor::center_screen_internal (framepos_t frame, float page)
1251 {
1252         page /= 2;
1253
1254         if (frame > page) {
1255                 frame -= (framepos_t) page;
1256         } else {
1257                 frame = 0;
1258         }
1259
1260         reset_x_origin (frame);
1261 }
1262
1263
1264 void
1265 Editor::update_title ()
1266 {
1267         ENSURE_GUI_THREAD (*this, &Editor::update_title);
1268
1269         if (!own_window()) {
1270                 return;
1271         }
1272
1273         if (_session) {
1274                 bool dirty = _session->dirty();
1275
1276                 string session_name;
1277
1278                 if (_session->snap_name() != _session->name()) {
1279                         session_name = _session->snap_name();
1280                 } else {
1281                         session_name = _session->name();
1282                 }
1283
1284                 if (dirty) {
1285                         session_name = "*" + session_name;
1286                 }
1287
1288                 WindowTitle title(session_name);
1289                 title += S_("Window|Editor");
1290                 title += Glib::get_application_name();
1291                 own_window()->set_title (title.get_string());
1292         } else {
1293                 /* ::session_going_away() will have taken care of it */
1294         }
1295 }
1296
1297 void
1298 Editor::set_session (Session *t)
1299 {
1300         SessionHandlePtr::set_session (t);
1301
1302         if (!_session) {
1303                 return;
1304         }
1305
1306         _playlist_selector->set_session (_session);
1307         nudge_clock->set_session (_session);
1308         _summary->set_session (_session);
1309         _group_tabs->set_session (_session);
1310         _route_groups->set_session (_session);
1311         _regions->set_session (_session);
1312         _snapshots->set_session (_session);
1313         _routes->set_session (_session);
1314         _locations->set_session (_session);
1315
1316         if (rhythm_ferret) {
1317                 rhythm_ferret->set_session (_session);
1318         }
1319
1320         if (analysis_window) {
1321                 analysis_window->set_session (_session);
1322         }
1323
1324         if (sfbrowser) {
1325                 sfbrowser->set_session (_session);
1326         }
1327
1328         compute_fixed_ruler_scale ();
1329
1330         /* Make sure we have auto loop and auto punch ranges */
1331
1332         Location* loc = _session->locations()->auto_loop_location();
1333         if (loc != 0) {
1334                 loc->set_name (_("Loop"));
1335         }
1336
1337         loc = _session->locations()->auto_punch_location();
1338         if (loc != 0) {
1339                 // force name
1340                 loc->set_name (_("Punch"));
1341         }
1342
1343         refresh_location_display ();
1344
1345         /* This must happen after refresh_location_display(), as (amongst other things) we restore
1346            the selected Marker; this needs the LocationMarker list to be available.
1347         */
1348         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
1349         set_state (*node, Stateful::loading_state_version);
1350
1351         /* catch up with the playhead */
1352
1353         _session->request_locate (playhead_cursor->current_frame ());
1354         _pending_initial_locate = true;
1355
1356         update_title ();
1357
1358         /* These signals can all be emitted by a non-GUI thread. Therefore the
1359            handlers for them must not attempt to directly interact with the GUI,
1360            but use PBD::Signal<T>::connect() which accepts an event loop
1361            ("context") where the handler will be asked to run.
1362         */
1363
1364         _session->StepEditStatusChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::step_edit_status_change, this, _1), gui_context());
1365         _session->TransportStateChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_transport_state, this), gui_context());
1366         _session->PositionChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_position_change, this, _1), gui_context());
1367         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_vcas, this, _1), gui_context());
1368         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_routes, this, _1), gui_context());
1369         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::update_title, this), gui_context());
1370         _session->tempo_map().PropertyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::tempo_map_changed, this, _1), gui_context());
1371         _session->tempo_map().MetricPositionChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::marker_position_changed, this), gui_context());
1372         _session->Located.connect (_session_connections, invalidator (*this), boost::bind (&Editor::located, this), gui_context());
1373         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::parameter_changed, this, _1), gui_context());
1374         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Editor::session_state_saved, this, _1), gui_context());
1375         _session->locations()->added.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_new_location, this, _1), gui_context());
1376         _session->locations()->removed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::location_gone, this, _1), gui_context());
1377         _session->locations()->changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::refresh_location_display, this), gui_context());
1378         _session->history().Changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::history_changed, this), gui_context());
1379
1380         playhead_cursor->show ();
1381
1382         boost::function<void (string)> pc (boost::bind (&Editor::parameter_changed, this, _1));
1383         Config->map_parameters (pc);
1384         _session->config.map_parameters (pc);
1385
1386         restore_ruler_visibility ();
1387         //tempo_map_changed (PropertyChange (0));
1388         _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
1389
1390         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1391                 (static_cast<TimeAxisView*>(*i))->set_samples_per_pixel (samples_per_pixel);
1392         }
1393
1394         super_rapid_screen_update_connection = Timers::super_rapid_connect (
1395                 sigc::mem_fun (*this, &Editor::super_rapid_screen_update)
1396                 );
1397
1398         switch (_snap_type) {
1399         case SnapToRegionStart:
1400         case SnapToRegionEnd:
1401         case SnapToRegionSync:
1402         case SnapToRegionBoundary:
1403                 build_region_boundary_cache ();
1404                 break;
1405
1406         default:
1407                 break;
1408         }
1409
1410         /* catch up on selection of stripables (other selection state is lost
1411          * when a session is closed
1412          */
1413
1414         StripableList sl;
1415         TrackViewList tl;
1416         _session->get_stripables (sl);
1417         for (StripableList::const_iterator s = sl.begin(); s != sl.end(); ++s) {
1418                 if ((*s)->presentation_info().selected()) {
1419                         RouteTimeAxisView* rtav = get_route_view_by_route_id ((*s)->id());
1420                         if (rtav) {
1421                                 tl.push_back (rtav);
1422                         }
1423                 }
1424         }
1425         if (!tl.empty()) {
1426                 selection->set (tl);
1427         }
1428
1429         /* register for undo history */
1430         _session->register_with_memento_command_factory(id(), this);
1431         _session->register_with_memento_command_factory(_selection_memento->id(), _selection_memento);
1432
1433         ActionManager::ui_manager->signal_pre_activate().connect (sigc::mem_fun (*this, &Editor::action_pre_activated));
1434
1435         LuaInstance::instance()->set_session(_session);
1436
1437         start_updating_meters ();
1438 }
1439
1440 void
1441 Editor::action_pre_activated (Glib::RefPtr<Action> const & a)
1442 {
1443         if (a->get_name() == "RegionMenu") {
1444                 /* When the main menu's region menu is opened, we setup the actions so that they look right
1445                    in the menu.  I can't find a way of getting a signal when this menu is subsequently closed,
1446                    so we resensitize all region actions when the entered regionview or the region selection
1447                    changes.  HOWEVER we can't always resensitize on entered_regionview change because that
1448                    happens after the region context menu is opened.  So we set a flag here, too.
1449
1450                    What a carry on :(
1451                 */
1452                 sensitize_the_right_region_actions ();
1453                 _last_region_menu_was_main = true;
1454         }
1455 }
1456
1457 void
1458 Editor::fill_xfade_menu (Menu_Helpers::MenuList& items, bool start)
1459 {
1460         using namespace Menu_Helpers;
1461
1462         void (Editor::*emf)(FadeShape);
1463         std::map<ARDOUR::FadeShape,Gtk::Image*>* images;
1464
1465         if (start) {
1466                 images = &_xfade_in_images;
1467                 emf = &Editor::set_fade_in_shape;
1468         } else {
1469                 images = &_xfade_out_images;
1470                 emf = &Editor::set_fade_out_shape;
1471         }
1472
1473         items.push_back (
1474                 ImageMenuElem (
1475                         _("Linear (for highly correlated material)"),
1476                         *(*images)[FadeLinear],
1477                         sigc::bind (sigc::mem_fun (*this, emf), FadeLinear)
1478                         )
1479                 );
1480
1481         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1482
1483         items.push_back (
1484                 ImageMenuElem (
1485                         _("Constant power"),
1486                         *(*images)[FadeConstantPower],
1487                         sigc::bind (sigc::mem_fun (*this, emf), FadeConstantPower)
1488                         ));
1489
1490         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1491
1492         items.push_back (
1493                 ImageMenuElem (
1494                         _("Symmetric"),
1495                         *(*images)[FadeSymmetric],
1496                         sigc::bind (sigc::mem_fun (*this, emf), FadeSymmetric)
1497                         )
1498                 );
1499
1500         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1501
1502         items.push_back (
1503                 ImageMenuElem (
1504                         _("Slow"),
1505                         *(*images)[FadeSlow],
1506                         sigc::bind (sigc::mem_fun (*this, emf), FadeSlow)
1507                         ));
1508
1509         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1510
1511         items.push_back (
1512                 ImageMenuElem (
1513                         _("Fast"),
1514                         *(*images)[FadeFast],
1515                         sigc::bind (sigc::mem_fun (*this, emf), FadeFast)
1516                         ));
1517
1518         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1519 }
1520
1521 /** Pop up a context menu for when the user clicks on a start crossfade */
1522 void
1523 Editor::popup_xfade_in_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType /*item_type*/)
1524 {
1525         using namespace Menu_Helpers;
1526         AudioRegionView* arv = dynamic_cast<AudioRegionView*> ((RegionView*)item->get_data ("regionview"));
1527         if (!arv) {
1528                 return;
1529         }
1530
1531         MenuList& items (xfade_in_context_menu.items());
1532         items.clear ();
1533
1534         if (arv->audio_region()->fade_in_active()) {
1535                 items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), false)));
1536         } else {
1537                 items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), true)));
1538         }
1539
1540         items.push_back (SeparatorElem());
1541         fill_xfade_menu (items, true);
1542
1543         xfade_in_context_menu.popup (button, time);
1544 }
1545
1546 /** Pop up a context menu for when the user clicks on an end crossfade */
1547 void
1548 Editor::popup_xfade_out_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType /*item_type*/)
1549 {
1550         using namespace Menu_Helpers;
1551         AudioRegionView* arv = dynamic_cast<AudioRegionView*> ((RegionView*)item->get_data ("regionview"));
1552         if (!arv) {
1553                 return;
1554         }
1555
1556         MenuList& items (xfade_out_context_menu.items());
1557         items.clear ();
1558
1559         if (arv->audio_region()->fade_out_active()) {
1560                 items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), false)));
1561         } else {
1562                 items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), true)));
1563         }
1564
1565         items.push_back (SeparatorElem());
1566         fill_xfade_menu (items, false);
1567
1568         xfade_out_context_menu.popup (button, time);
1569 }
1570
1571 void
1572 Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection)
1573 {
1574         using namespace Menu_Helpers;
1575         Menu* (Editor::*build_menu_function)();
1576         Menu *menu;
1577
1578         switch (item_type) {
1579         case RegionItem:
1580         case RegionViewName:
1581         case RegionViewNameHighlight:
1582         case LeftFrameHandle:
1583         case RightFrameHandle:
1584                 if (with_selection) {
1585                         build_menu_function = &Editor::build_track_selection_context_menu;
1586                 } else {
1587                         build_menu_function = &Editor::build_track_region_context_menu;
1588                 }
1589                 break;
1590
1591         case SelectionItem:
1592                 if (with_selection) {
1593                         build_menu_function = &Editor::build_track_selection_context_menu;
1594                 } else {
1595                         build_menu_function = &Editor::build_track_context_menu;
1596                 }
1597                 break;
1598
1599         case StreamItem:
1600                 if (clicked_routeview->track()) {
1601                         build_menu_function = &Editor::build_track_context_menu;
1602                 } else {
1603                         build_menu_function = &Editor::build_track_bus_context_menu;
1604                 }
1605                 break;
1606
1607         default:
1608                 /* probably shouldn't happen but if it does, we don't care */
1609                 return;
1610         }
1611
1612         menu = (this->*build_menu_function)();
1613         menu->set_name ("ArdourContextMenu");
1614
1615         /* now handle specific situations */
1616
1617         switch (item_type) {
1618         case RegionItem:
1619         case RegionViewName:
1620         case RegionViewNameHighlight:
1621         case LeftFrameHandle:
1622         case RightFrameHandle:
1623                 if (!with_selection) {
1624                         if (region_edit_menu_split_item) {
1625                                 if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
1626                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, true);
1627                                 } else {
1628                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
1629                                 }
1630                         }
1631                         if (region_edit_menu_split_multichannel_item) {
1632                                 if (clicked_regionview && clicked_regionview->region()->n_channels() > 1) {
1633                                         region_edit_menu_split_multichannel_item->set_sensitive (true);
1634                                 } else {
1635                                         region_edit_menu_split_multichannel_item->set_sensitive (false);
1636                                 }
1637                         }
1638                 }
1639                 break;
1640
1641         case SelectionItem:
1642                 break;
1643
1644         case StreamItem:
1645                 break;
1646
1647         default:
1648                 /* probably shouldn't happen but if it does, we don't care */
1649                 return;
1650         }
1651
1652         if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
1653
1654                 /* Bounce to disk */
1655
1656                 using namespace Menu_Helpers;
1657                 MenuList& edit_items  = menu->items();
1658
1659                 edit_items.push_back (SeparatorElem());
1660
1661                 switch (clicked_routeview->audio_track()->freeze_state()) {
1662                 case AudioTrack::NoFreeze:
1663                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1664                         break;
1665
1666                 case AudioTrack::Frozen:
1667                         edit_items.push_back (MenuElem (_("Unfreeze"), sigc::mem_fun(*this, &Editor::unfreeze_route)));
1668                         break;
1669
1670                 case AudioTrack::UnFrozen:
1671                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1672                         break;
1673                 }
1674
1675         }
1676
1677         if (item_type == StreamItem && clicked_routeview) {
1678                 clicked_routeview->build_underlay_menu(menu);
1679         }
1680
1681         /* When the region menu is opened, we setup the actions so that they look right
1682            in the menu.
1683         */
1684         sensitize_the_right_region_actions ();
1685         _last_region_menu_was_main = false;
1686
1687         menu->signal_hide().connect (sigc::bind (sigc::mem_fun (*this, &Editor::sensitize_all_region_actions), true));
1688         menu->popup (button, time);
1689 }
1690
1691 Menu*
1692 Editor::build_track_context_menu ()
1693 {
1694         using namespace Menu_Helpers;
1695
1696         MenuList& edit_items = track_context_menu.items();
1697         edit_items.clear();
1698
1699         add_dstream_context_items (edit_items);
1700         return &track_context_menu;
1701 }
1702
1703 Menu*
1704 Editor::build_track_bus_context_menu ()
1705 {
1706         using namespace Menu_Helpers;
1707
1708         MenuList& edit_items = track_context_menu.items();
1709         edit_items.clear();
1710
1711         add_bus_context_items (edit_items);
1712         return &track_context_menu;
1713 }
1714
1715 Menu*
1716 Editor::build_track_region_context_menu ()
1717 {
1718         using namespace Menu_Helpers;
1719         MenuList& edit_items  = track_region_context_menu.items();
1720         edit_items.clear();
1721
1722         /* we've just cleared the track region context menu, so the menu that these
1723            two items were on will have disappeared; stop them dangling.
1724         */
1725         region_edit_menu_split_item = 0;
1726         region_edit_menu_split_multichannel_item = 0;
1727
1728         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
1729
1730         if (rtv) {
1731                 boost::shared_ptr<Track> tr;
1732                 boost::shared_ptr<Playlist> pl;
1733
1734                 if ((tr = rtv->track())) {
1735                         add_region_context_items (edit_items, tr);
1736                 }
1737         }
1738
1739         add_dstream_context_items (edit_items);
1740
1741         return &track_region_context_menu;
1742 }
1743
1744 void
1745 Editor::loudness_analyze_region_selection ()
1746 {
1747         if (!_session) {
1748                 return;
1749         }
1750         Selection& s (PublicEditor::instance ().get_selection ());
1751         RegionSelection ars = s.regions;
1752         ARDOUR::AnalysisGraph ag (_session);
1753         framecnt_t total_work = 0;
1754
1755         for (RegionSelection::iterator j = ars.begin (); j != ars.end (); ++j) {
1756                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*j);
1757                 if (!arv) {
1758                         continue;
1759                 }
1760                 if (!boost::dynamic_pointer_cast<AudioRegion> (arv->region ())) {
1761                         continue;
1762                 }
1763                 assert (dynamic_cast<RouteTimeAxisView *> (&arv->get_time_axis_view ()));
1764                 total_work += arv->region ()->length ();
1765         }
1766
1767         SimpleProgressDialog spd (_("Region Loudness Analysis"), sigc::mem_fun (ag, &AnalysisGraph::cancel));
1768         ScopedConnection c;
1769         ag.set_total_frames (total_work);
1770         ag.Progress.connect_same_thread (c, boost::bind (&SimpleProgressDialog::update_progress, &spd, _1, _2));
1771         spd.show();
1772
1773         for (RegionSelection::iterator j = ars.begin (); j != ars.end (); ++j) {
1774                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*j);
1775                 if (!arv) {
1776                         continue;
1777                 }
1778                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (arv->region ());
1779                 if (!ar) {
1780                         continue;
1781                 }
1782                 ag.analyze_region (ar);
1783         }
1784         spd.hide();
1785         if (!ag.canceled ()) {
1786                 ExportReport er (_("Audio Report/Analysis"), ag.results ());
1787                 er.run();
1788         }
1789 }
1790
1791 void
1792 Editor::loudness_analyze_range_selection ()
1793 {
1794         if (!_session) {
1795                 return;
1796         }
1797         Selection& s (PublicEditor::instance ().get_selection ());
1798         TimeSelection ts = s.time;
1799         ARDOUR::AnalysisGraph ag (_session);
1800         framecnt_t total_work = 0;
1801
1802         for (TrackSelection::iterator i = s.tracks.begin (); i != s.tracks.end (); ++i) {
1803                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist> ((*i)->playlist ());
1804                 if (!pl) {
1805                         continue;
1806                 }
1807                 RouteUI *rui = dynamic_cast<RouteUI *> (*i);
1808                 if (!pl || !rui) {
1809                         continue;
1810                 }
1811                 for (std::list<AudioRange>::iterator j = ts.begin (); j != ts.end (); ++j) {
1812                         total_work += j->length ();
1813                 }
1814         }
1815
1816         SimpleProgressDialog spd (_("Range Loudness Analysis"), sigc::mem_fun (ag, &AnalysisGraph::cancel));
1817         ScopedConnection c;
1818         ag.set_total_frames (total_work);
1819         ag.Progress.connect_same_thread (c, boost::bind (&SimpleProgressDialog::update_progress, &spd, _1, _2));
1820         spd.show();
1821
1822         for (TrackSelection::iterator i = s.tracks.begin (); i != s.tracks.end (); ++i) {
1823                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist> ((*i)->playlist ());
1824                 if (!pl) {
1825                         continue;
1826                 }
1827                 RouteUI *rui = dynamic_cast<RouteUI *> (*i);
1828                 if (!pl || !rui) {
1829                         continue;
1830                 }
1831                 ag.analyze_range (rui->route (), pl, ts);
1832         }
1833         spd.hide();
1834         if (!ag.canceled ()) {
1835                 ExportReport er (_("Audio Report/Analysis"), ag.results ());
1836                 er.run();
1837         }
1838 }
1839
1840 void
1841 Editor::spectral_analyze_region_selection ()
1842 {
1843         if (analysis_window == 0) {
1844                 analysis_window = new AnalysisWindow();
1845
1846                 if (_session != 0)
1847                         analysis_window->set_session(_session);
1848
1849                 analysis_window->show_all();
1850         }
1851
1852         analysis_window->set_regionmode();
1853         analysis_window->analyze();
1854
1855         analysis_window->present();
1856 }
1857
1858 void
1859 Editor::spectral_analyze_range_selection()
1860 {
1861         if (analysis_window == 0) {
1862                 analysis_window = new AnalysisWindow();
1863
1864                 if (_session != 0)
1865                         analysis_window->set_session(_session);
1866
1867                 analysis_window->show_all();
1868         }
1869
1870         analysis_window->set_rangemode();
1871         analysis_window->analyze();
1872
1873         analysis_window->present();
1874 }
1875
1876 Menu*
1877 Editor::build_track_selection_context_menu ()
1878 {
1879         using namespace Menu_Helpers;
1880         MenuList& edit_items  = track_selection_context_menu.items();
1881         edit_items.clear ();
1882
1883         add_selection_context_items (edit_items);
1884         // edit_items.push_back (SeparatorElem());
1885         // add_dstream_context_items (edit_items);
1886
1887         return &track_selection_context_menu;
1888 }
1889
1890 void
1891 Editor::add_region_context_items (Menu_Helpers::MenuList& edit_items, boost::shared_ptr<Track> track)
1892 {
1893         using namespace Menu_Helpers;
1894
1895         /* OK, stick the region submenu at the top of the list, and then add
1896            the standard items.
1897         */
1898
1899         RegionSelection rs = get_regions_from_selection_and_entered ();
1900
1901         string::size_type pos = 0;
1902         string menu_item_name = (rs.size() == 1) ? rs.front()->region()->name() : _("Selected Regions");
1903
1904         /* we have to hack up the region name because "_" has a special
1905            meaning for menu titles.
1906         */
1907
1908         while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
1909                 menu_item_name.replace (pos, 1, "__");
1910                 pos += 2;
1911         }
1912
1913         if (_popup_region_menu_item == 0) {
1914                 _popup_region_menu_item = new MenuItem (menu_item_name);
1915                 _popup_region_menu_item->set_submenu (*dynamic_cast<Menu*> (ActionManager::get_widget (X_("/PopupRegionMenu"))));
1916                 _popup_region_menu_item->show ();
1917         } else {
1918                 _popup_region_menu_item->set_label (menu_item_name);
1919         }
1920
1921         /* No latering allowed in later is higher layering model */
1922         RefPtr<Action> act = ActionManager::get_action (X_("EditorMenu"), X_("RegionMenuLayering"));
1923         if (act && Config->get_layer_model() == LaterHigher) {
1924                 act->set_sensitive (false);
1925         } else if (act) {
1926                 act->set_sensitive (true);
1927         }
1928
1929         const framepos_t position = get_preferred_edit_position (EDIT_IGNORE_NONE, true);
1930
1931         edit_items.push_back (*_popup_region_menu_item);
1932         if (Config->get_layer_model() == Manual && track->playlist()->count_regions_at (position) > 1 && (layering_order_editor == 0 || !layering_order_editor->is_visible ())) {
1933                 edit_items.push_back (*manage (_region_actions->get_action ("choose-top-region-context-menu")->create_menu_item ()));
1934         }
1935         edit_items.push_back (SeparatorElem());
1936 }
1937
1938 /** Add context menu items relevant to selection ranges.
1939  * @param edit_items List to add the items to.
1940  */
1941 void
1942 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
1943 {
1944         using namespace Menu_Helpers;
1945
1946         edit_items.push_back (MenuElem (_("Play Range"), sigc::mem_fun(*this, &Editor::play_selection)));
1947         edit_items.push_back (MenuElem (_("Loop Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), true)));
1948
1949         edit_items.push_back (SeparatorElem());
1950         edit_items.push_back (MenuElem (_("Zoom to Range"), sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_selection), false)));
1951
1952         edit_items.push_back (SeparatorElem());
1953         edit_items.push_back (MenuElem (_("Loudness Analysis"), sigc::mem_fun(*this, &Editor::loudness_analyze_range_selection)));
1954         edit_items.push_back (MenuElem (_("Spectral Analysis"), sigc::mem_fun(*this, &Editor::spectral_analyze_range_selection)));
1955
1956         edit_items.push_back (SeparatorElem());
1957
1958         edit_items.push_back (
1959                 MenuElem (
1960                         _("Move Range Start to Previous Region Boundary"),
1961                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), false, false)
1962                         )
1963                 );
1964
1965         edit_items.push_back (
1966                 MenuElem (
1967                         _("Move Range Start to Next Region Boundary"),
1968                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), false, true)
1969                         )
1970                 );
1971
1972         edit_items.push_back (
1973                 MenuElem (
1974                         _("Move Range End to Previous Region Boundary"),
1975                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), true, false)
1976                         )
1977                 );
1978
1979         edit_items.push_back (
1980                 MenuElem (
1981                         _("Move Range End to Next Region Boundary"),
1982                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), true, true)
1983                         )
1984                 );
1985
1986         edit_items.push_back (SeparatorElem());
1987         edit_items.push_back (MenuElem (_("Separate"), mem_fun(*this, &Editor::separate_region_from_selection)));
1988         edit_items.push_back (MenuElem (_("Convert to Region in Region List"), sigc::mem_fun(*this, &Editor::new_region_from_selection)));
1989
1990         edit_items.push_back (SeparatorElem());
1991         edit_items.push_back (MenuElem (_("Select All in Range"), sigc::mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
1992
1993         edit_items.push_back (SeparatorElem());
1994         edit_items.push_back (MenuElem (_("Set Loop from Selection"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), false)));
1995         edit_items.push_back (MenuElem (_("Set Punch from Selection"), sigc::mem_fun(*this, &Editor::set_punch_from_selection)));
1996         edit_items.push_back (MenuElem (_("Set Session Start/End from Selection"), sigc::mem_fun(*this, &Editor::set_session_extents_from_selection)));
1997
1998         edit_items.push_back (SeparatorElem());
1999         edit_items.push_back (MenuElem (_("Add Range Markers"), sigc::mem_fun (*this, &Editor::add_location_from_selection)));
2000
2001         edit_items.push_back (SeparatorElem());
2002         edit_items.push_back (MenuElem (_("Crop Region to Range"), sigc::mem_fun(*this, &Editor::crop_region_to_selection)));
2003         edit_items.push_back (MenuElem (_("Duplicate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_range), false)));
2004
2005         edit_items.push_back (SeparatorElem());
2006         edit_items.push_back (MenuElem (_("Consolidate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, false)));
2007         edit_items.push_back (MenuElem (_("Consolidate Range with Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, true)));
2008         edit_items.push_back (MenuElem (_("Bounce Range to Region List"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, false)));
2009         edit_items.push_back (MenuElem (_("Bounce Range to Region List with Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, true)));
2010         edit_items.push_back (MenuElem (_("Export Range..."), sigc::mem_fun(*this, &Editor::export_selection)));
2011         if (ARDOUR_UI::instance()->video_timeline->get_duration() > 0) {
2012                 edit_items.push_back (MenuElem (_("Export Video Range..."), sigc::bind (sigc::mem_fun(*(ARDOUR_UI::instance()), &ARDOUR_UI::export_video), true)));
2013         }
2014 }
2015
2016
2017 void
2018 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
2019 {
2020         using namespace Menu_Helpers;
2021
2022         /* Playback */
2023
2024         Menu *play_menu = manage (new Menu);
2025         MenuList& play_items = play_menu->items();
2026         play_menu->set_name ("ArdourContextMenu");
2027
2028         play_items.push_back (MenuElem (_("Play from Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
2029         play_items.push_back (MenuElem (_("Play from Start"), sigc::mem_fun(*this, &Editor::play_from_start)));
2030         play_items.push_back (MenuElem (_("Play Region"), sigc::mem_fun(*this, &Editor::play_selected_region)));
2031         play_items.push_back (SeparatorElem());
2032         play_items.push_back (MenuElem (_("Loop Region"), sigc::bind (sigc::mem_fun (*this, &Editor::set_loop_from_region), true)));
2033
2034         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2035
2036         /* Selection */
2037
2038         Menu *select_menu = manage (new Menu);
2039         MenuList& select_items = select_menu->items();
2040         select_menu->set_name ("ArdourContextMenu");
2041
2042         select_items.push_back (MenuElem (_("Select All in Track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2043         select_items.push_back (MenuElem (_("Select All Objects"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_objects), Selection::Set)));
2044         select_items.push_back (MenuElem (_("Invert Selection in Track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
2045         select_items.push_back (MenuElem (_("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
2046         select_items.push_back (SeparatorElem());
2047         select_items.push_back (MenuElem (_("Set Range to Loop Range"), sigc::mem_fun(*this, &Editor::set_selection_from_loop)));
2048         select_items.push_back (MenuElem (_("Set Range to Punch Range"), sigc::mem_fun(*this, &Editor::set_selection_from_punch)));
2049         select_items.push_back (MenuElem (_("Set Range to Selected Regions"), sigc::mem_fun(*this, &Editor::set_selection_from_region)));
2050         select_items.push_back (SeparatorElem());
2051         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true, true)));
2052         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false, true)));
2053         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2054         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2055         select_items.push_back (MenuElem (_("Select All Between Playhead and Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), false)));
2056         select_items.push_back (MenuElem (_("Select All Within Playhead and Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), true)));
2057         select_items.push_back (MenuElem (_("Select Range Between Playhead and Edit Point"), sigc::mem_fun(*this, &Editor::select_range_between)));
2058
2059         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2060
2061         /* Cut-n-Paste */
2062
2063         Menu *cutnpaste_menu = manage (new Menu);
2064         MenuList& cutnpaste_items = cutnpaste_menu->items();
2065         cutnpaste_menu->set_name ("ArdourContextMenu");
2066
2067         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
2068         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
2069         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f, true)));
2070
2071         cutnpaste_items.push_back (SeparatorElem());
2072
2073         cutnpaste_items.push_back (MenuElem (_("Align"), sigc::bind (sigc::mem_fun (*this, &Editor::align_regions), ARDOUR::SyncPoint)));
2074         cutnpaste_items.push_back (MenuElem (_("Align Relative"), sigc::bind (sigc::mem_fun (*this, &Editor::align_regions_relative), ARDOUR::SyncPoint)));
2075
2076         edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
2077
2078         /* Adding new material */
2079
2080         edit_items.push_back (SeparatorElem());
2081         edit_items.push_back (MenuElem (_("Insert Selected Region"), sigc::bind (sigc::mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
2082         edit_items.push_back (MenuElem (_("Insert Existing Media"), sigc::bind (sigc::mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
2083
2084         /* Nudge track */
2085
2086         Menu *nudge_menu = manage (new Menu());
2087         MenuList& nudge_items = nudge_menu->items();
2088         nudge_menu->set_name ("ArdourContextMenu");
2089
2090         edit_items.push_back (SeparatorElem());
2091         nudge_items.push_back (MenuElem (_("Nudge Entire Track Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2092         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2093         nudge_items.push_back (MenuElem (_("Nudge Entire Track Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2094         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2095
2096         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2097 }
2098
2099 void
2100 Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
2101 {
2102         using namespace Menu_Helpers;
2103
2104         /* Playback */
2105
2106         Menu *play_menu = manage (new Menu);
2107         MenuList& play_items = play_menu->items();
2108         play_menu->set_name ("ArdourContextMenu");
2109
2110         play_items.push_back (MenuElem (_("Play from Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
2111         play_items.push_back (MenuElem (_("Play from Start"), sigc::mem_fun(*this, &Editor::play_from_start)));
2112         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2113
2114         /* Selection */
2115
2116         Menu *select_menu = manage (new Menu);
2117         MenuList& select_items = select_menu->items();
2118         select_menu->set_name ("ArdourContextMenu");
2119
2120         select_items.push_back (MenuElem (_("Select All in Track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2121         select_items.push_back (MenuElem (_("Select All Objects"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_objects), Selection::Set)));
2122         select_items.push_back (MenuElem (_("Invert Selection in Track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
2123         select_items.push_back (MenuElem (_("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
2124         select_items.push_back (SeparatorElem());
2125         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true, true)));
2126         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false, true)));
2127         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2128         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2129
2130         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2131
2132         /* Cut-n-Paste */
2133
2134         Menu *cutnpaste_menu = manage (new Menu);
2135         MenuList& cutnpaste_items = cutnpaste_menu->items();
2136         cutnpaste_menu->set_name ("ArdourContextMenu");
2137
2138         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
2139         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
2140         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f, true)));
2141
2142         Menu *nudge_menu = manage (new Menu());
2143         MenuList& nudge_items = nudge_menu->items();
2144         nudge_menu->set_name ("ArdourContextMenu");
2145
2146         edit_items.push_back (SeparatorElem());
2147         nudge_items.push_back (MenuElem (_("Nudge Entire Track Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2148         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2149         nudge_items.push_back (MenuElem (_("Nudge Entire Track Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2150         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2151
2152         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2153 }
2154
2155 SnapType
2156 Editor::snap_type() const
2157 {
2158         return _snap_type;
2159 }
2160
2161 bool
2162 Editor::snap_musical() const
2163 {
2164         switch (_snap_type) {
2165         case SnapToBeatDiv128:
2166         case SnapToBeatDiv64:
2167         case SnapToBeatDiv32:
2168         case SnapToBeatDiv28:
2169         case SnapToBeatDiv24:
2170         case SnapToBeatDiv20:
2171         case SnapToBeatDiv16:
2172         case SnapToBeatDiv14:
2173         case SnapToBeatDiv12:
2174         case SnapToBeatDiv10:
2175         case SnapToBeatDiv8:
2176         case SnapToBeatDiv7:
2177         case SnapToBeatDiv6:
2178         case SnapToBeatDiv5:
2179         case SnapToBeatDiv4:
2180         case SnapToBeatDiv3:
2181         case SnapToBeatDiv2:
2182         case SnapToBeat:
2183         case SnapToBar:
2184                 return true;
2185         default:
2186                 break;
2187         }
2188
2189         return false;
2190 }
2191
2192 SnapMode
2193 Editor::snap_mode() const
2194 {
2195         return _snap_mode;
2196 }
2197
2198 void
2199 Editor::set_snap_to (SnapType st)
2200 {
2201         unsigned int snap_ind = (unsigned int)st;
2202
2203         if (internal_editing()) {
2204                 internal_snap_type = st;
2205         } else {
2206                 pre_internal_snap_type = st;
2207         }
2208
2209         _snap_type = st;
2210
2211         if (snap_ind > snap_type_strings.size() - 1) {
2212                 snap_ind = 0;
2213                 _snap_type = (SnapType)snap_ind;
2214         }
2215
2216         string str = snap_type_strings[snap_ind];
2217
2218         if (str != snap_type_selector.get_text()) {
2219                 snap_type_selector.set_text (str);
2220         }
2221
2222         instant_save ();
2223
2224         switch (_snap_type) {
2225         case SnapToBeatDiv128:
2226         case SnapToBeatDiv64:
2227         case SnapToBeatDiv32:
2228         case SnapToBeatDiv28:
2229         case SnapToBeatDiv24:
2230         case SnapToBeatDiv20:
2231         case SnapToBeatDiv16:
2232         case SnapToBeatDiv14:
2233         case SnapToBeatDiv12:
2234         case SnapToBeatDiv10:
2235         case SnapToBeatDiv8:
2236         case SnapToBeatDiv7:
2237         case SnapToBeatDiv6:
2238         case SnapToBeatDiv5:
2239         case SnapToBeatDiv4:
2240         case SnapToBeatDiv3:
2241         case SnapToBeatDiv2: {
2242                 std::vector<TempoMap::BBTPoint> grid;
2243                 compute_current_bbt_points (grid, leftmost_frame, leftmost_frame + current_page_samples());
2244                 compute_bbt_ruler_scale (grid, leftmost_frame, leftmost_frame + current_page_samples());
2245                 update_tempo_based_rulers (grid);
2246                 break;
2247         }
2248
2249         case SnapToRegionStart:
2250         case SnapToRegionEnd:
2251         case SnapToRegionSync:
2252         case SnapToRegionBoundary:
2253                 build_region_boundary_cache ();
2254                 break;
2255
2256         default:
2257                 /* relax */
2258                 break;
2259         }
2260
2261         redisplay_tempo (false);
2262
2263         SnapChanged (); /* EMIT SIGNAL */
2264 }
2265
2266 void
2267 Editor::set_snap_mode (SnapMode mode)
2268 {
2269         string str = snap_mode_strings[(int)mode];
2270
2271         if (internal_editing()) {
2272                 internal_snap_mode = mode;
2273         } else {
2274                 pre_internal_snap_mode = mode;
2275         }
2276
2277         _snap_mode = mode;
2278
2279         if (str != snap_mode_selector.get_text ()) {
2280                 snap_mode_selector.set_text (str);
2281         }
2282
2283         instant_save ();
2284 }
2285
2286 void
2287 Editor::set_edit_point_preference (EditPoint ep, bool force)
2288 {
2289         bool changed = (_edit_point != ep);
2290
2291         _edit_point = ep;
2292         if (Profile->get_mixbus())
2293                 if (ep == EditAtSelectedMarker)
2294                         ep = EditAtPlayhead;
2295
2296         string str = edit_point_strings[(int)ep];
2297         if (str != edit_point_selector.get_text ()) {
2298                 edit_point_selector.set_text (str);
2299         }
2300
2301         update_all_enter_cursors();
2302
2303         if (!force && !changed) {
2304                 return;
2305         }
2306
2307         const char* action=NULL;
2308
2309         switch (_edit_point) {
2310         case EditAtPlayhead:
2311                 action = "edit-at-playhead";
2312                 break;
2313         case EditAtSelectedMarker:
2314                 action = "edit-at-marker";
2315                 break;
2316         case EditAtMouse:
2317                 action = "edit-at-mouse";
2318                 break;
2319         }
2320
2321         Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
2322         if (act) {
2323                 Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
2324         }
2325
2326         framepos_t foo;
2327         bool in_track_canvas;
2328
2329         if (!mouse_frame (foo, in_track_canvas)) {
2330                 in_track_canvas = false;
2331         }
2332
2333         reset_canvas_action_sensitivity (in_track_canvas);
2334
2335         instant_save ();
2336 }
2337
2338 int
2339 Editor::set_state (const XMLNode& node, int version)
2340 {
2341         XMLProperty const * prop;
2342         set_id (node);
2343         PBD::Unwinder<bool> nsi (no_save_instant, true);
2344         LocaleGuard lg;
2345
2346         Tabbable::set_state (node, version);
2347
2348         if (_session && (prop = node.property ("playhead"))) {
2349                 framepos_t pos;
2350                 sscanf (prop->value().c_str(), "%" PRIi64, &pos);
2351                 if (pos >= 0) {
2352                         playhead_cursor->set_position (pos);
2353                 } else {
2354                         warning << _("Playhead position stored with a negative value - ignored (use zero instead)") << endmsg;
2355                         playhead_cursor->set_position (0);
2356                 }
2357         } else {
2358                 playhead_cursor->set_position (0);
2359         }
2360
2361         if ((prop = node.property ("mixer-width"))) {
2362                 editor_mixer_strip_width = Width (string_2_enum (prop->value(), editor_mixer_strip_width));
2363         }
2364
2365         if ((prop = node.property ("zoom-focus"))) {
2366                 zoom_focus_selection_done ((ZoomFocus) string_2_enum (prop->value(), zoom_focus));
2367         } else {
2368                 zoom_focus_selection_done (zoom_focus);
2369         }
2370
2371         if ((prop = node.property ("zoom"))) {
2372                 /* older versions of ardour used floating point samples_per_pixel */
2373                 double f = PBD::atof (prop->value());
2374                 reset_zoom (llrintf (f));
2375         } else {
2376                 reset_zoom (samples_per_pixel);
2377         }
2378
2379         if ((prop = node.property ("visible-track-count"))) {
2380                 set_visible_track_count (PBD::atoi (prop->value()));
2381         }
2382
2383         if ((prop = node.property ("snap-to"))) {
2384                 snap_type_selection_done ((SnapType) string_2_enum (prop->value(), _snap_type));
2385                 set_snap_to ((SnapType) string_2_enum (prop->value(), _snap_type));
2386         } else {
2387                 set_snap_to (_snap_type);
2388         }
2389
2390         if ((prop = node.property ("snap-mode"))) {
2391                 snap_mode_selection_done((SnapMode) string_2_enum (prop->value(), _snap_mode));
2392                 /* set text of Dropdown. in case _snap_mode == SnapOff (default)
2393                  * snap_mode_selection_done() will only mark an already active item as active
2394                  * which does not trigger set_text().
2395                  */
2396                 set_snap_mode ((SnapMode) string_2_enum (prop->value(), _snap_mode));
2397         } else {
2398                 set_snap_mode (_snap_mode);
2399         }
2400
2401         if ((prop = node.property ("internal-snap-to"))) {
2402                 internal_snap_type = (SnapType) string_2_enum (prop->value(), internal_snap_type);
2403         }
2404
2405         if ((prop = node.property ("internal-snap-mode"))) {
2406                 internal_snap_mode = (SnapMode) string_2_enum (prop->value(), internal_snap_mode);
2407         }
2408
2409         if ((prop = node.property ("pre-internal-snap-to"))) {
2410                 pre_internal_snap_type = (SnapType) string_2_enum (prop->value(), pre_internal_snap_type);
2411         }
2412
2413         if ((prop = node.property ("pre-internal-snap-mode"))) {
2414                 pre_internal_snap_mode = (SnapMode) string_2_enum (prop->value(), pre_internal_snap_mode);
2415         }
2416
2417         if ((prop = node.property ("mouse-mode"))) {
2418                 MouseMode m = str2mousemode(prop->value());
2419                 set_mouse_mode (m, true);
2420         } else {
2421                 set_mouse_mode (MouseObject, true);
2422         }
2423
2424         if ((prop = node.property ("left-frame")) != 0) {
2425                 framepos_t pos;
2426                 if (sscanf (prop->value().c_str(), "%" PRId64, &pos) == 1) {
2427                         if (pos < 0) {
2428                                 pos = 0;
2429                         }
2430                         reset_x_origin (pos);
2431                 }
2432         }
2433
2434         if ((prop = node.property ("y-origin")) != 0) {
2435                 reset_y_origin (atof (prop->value ()));
2436         }
2437
2438         if ((prop = node.property ("join-object-range"))) {
2439                 RefPtr<Action> act = ActionManager::get_action (X_("MouseMode"), X_("set-mouse-mode-object-range"));
2440                 bool yn = string_is_affirmative (prop->value());
2441                 if (act) {
2442                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2443                         tact->set_active (!yn);
2444                         tact->set_active (yn);
2445                 }
2446                 set_mouse_mode(mouse_mode, true);
2447         }
2448
2449         if ((prop = node.property ("edit-point"))) {
2450                 set_edit_point_preference ((EditPoint) string_2_enum (prop->value(), _edit_point), true);
2451         } else {
2452                 set_edit_point_preference (_edit_point);
2453         }
2454
2455         if ((prop = node.property ("show-measures"))) {
2456                 bool yn = string_is_affirmative (prop->value());
2457                 _show_measures = yn;
2458         }
2459
2460         if ((prop = node.property ("follow-playhead"))) {
2461                 bool yn = string_is_affirmative (prop->value());
2462                 set_follow_playhead (yn);
2463         }
2464
2465         if ((prop = node.property ("stationary-playhead"))) {
2466                 bool yn = string_is_affirmative (prop->value());
2467                 set_stationary_playhead (yn);
2468         }
2469
2470         if ((prop = node.property ("region-list-sort-type"))) {
2471                 RegionListSortType st;
2472                 _regions->reset_sort_type ((RegionListSortType) string_2_enum (prop->value(), st), true);
2473         }
2474
2475         if ((prop = node.property ("show-editor-mixer"))) {
2476
2477                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2478                 assert (act);
2479
2480                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2481                 bool yn = string_is_affirmative (prop->value());
2482
2483                 /* do it twice to force the change */
2484
2485                 tact->set_active (!yn);
2486                 tact->set_active (yn);
2487         }
2488
2489         if ((prop = node.property ("show-editor-list"))) {
2490
2491                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2492                 assert (act);
2493
2494                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2495                 bool yn = string_is_affirmative (prop->value());
2496
2497                 /* do it twice to force the change */
2498
2499                 tact->set_active (!yn);
2500                 tact->set_active (yn);
2501         }
2502
2503         if ((prop = node.property (X_("editor-list-page")))) {
2504                 _the_notebook.set_current_page (atoi (prop->value ()));
2505         }
2506
2507         if ((prop = node.property (X_("show-marker-lines")))) {
2508                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-marker-lines"));
2509                 assert (act);
2510                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
2511                 bool yn = string_is_affirmative (prop->value ());
2512
2513                 tact->set_active (!yn);
2514                 tact->set_active (yn);
2515         }
2516
2517         XMLNodeList children = node.children ();
2518         for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
2519                 selection->set_state (**i, Stateful::current_state_version);
2520                 _regions->set_state (**i);
2521         }
2522
2523         if ((prop = node.property ("maximised"))) {
2524                 bool yn = string_is_affirmative (prop->value());
2525                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalEditor"));
2526                 assert (act);
2527                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2528                 bool fs = tact && tact->get_active();
2529                 if (yn ^ fs) {
2530                         ActionManager::do_action ("Common", "ToggleMaximalEditor");
2531                 }
2532         }
2533
2534         if ((prop = node.property ("nudge-clock-value"))) {
2535                 framepos_t f;
2536                 sscanf (prop->value().c_str(), "%" PRId64, &f);
2537                 nudge_clock->set (f);
2538         } else {
2539                 nudge_clock->set_mode (AudioClock::Timecode);
2540                 nudge_clock->set (_session->frame_rate() * 5, true);
2541         }
2542
2543         {
2544                 /* apply state
2545                  * Not all properties may have been in XML, but
2546                  * those that are linked to a private variable may need changing
2547                  */
2548                 RefPtr<Action> act;
2549                 bool yn;
2550
2551                 act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
2552                 if (act) {
2553                         yn = _show_measures;
2554                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2555                         /* do it twice to force the change */
2556                         tact->set_active (!yn);
2557                         tact->set_active (yn);
2558                 }
2559
2560                 act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
2561                 yn = _follow_playhead;
2562                 if (act) {
2563                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2564                         if (tact->get_active() != yn) {
2565                                 tact->set_active (yn);
2566                         }
2567                 }
2568
2569                 act = ActionManager::get_action (X_("Editor"), X_("toggle-stationary-playhead"));
2570                 yn = _stationary_playhead;
2571                 if (act) {
2572                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2573                         if (tact->get_active() != yn) {
2574                                 tact->set_active (yn);
2575                         }
2576                 }
2577         }
2578
2579         return LuaInstance::instance()->set_state(node);
2580 }
2581
2582 XMLNode&
2583 Editor::get_state ()
2584 {
2585         XMLNode* node = new XMLNode (X_("Editor"));
2586         char buf[32];
2587         LocaleGuard lg;
2588
2589         id().print (buf, sizeof (buf));
2590         node->add_property ("id", buf);
2591
2592         node->add_child_nocopy (Tabbable::get_state());
2593
2594         snprintf(buf,sizeof(buf), "%f", edit_pane.get_divider ());
2595         node->add_property("edit-horizontal-pane-pos", string(buf));
2596         node->add_property("notebook-shrunk", _notebook_shrunk ? "1" : "0");
2597         snprintf(buf,sizeof(buf), "%f", editor_summary_pane.get_divider());
2598         node->add_property("edit-vertical-pane-pos", string(buf));
2599
2600         maybe_add_mixer_strip_width (*node);
2601
2602         node->add_property ("zoom-focus", enum_2_string (zoom_focus));
2603
2604         snprintf (buf, sizeof(buf), "%" PRId64, samples_per_pixel);
2605         node->add_property ("zoom", buf);
2606         node->add_property ("snap-to", enum_2_string (_snap_type));
2607         node->add_property ("snap-mode", enum_2_string (_snap_mode));
2608         node->add_property ("internal-snap-to", enum_2_string (internal_snap_type));
2609         node->add_property ("internal-snap-mode", enum_2_string (internal_snap_mode));
2610         node->add_property ("pre-internal-snap-to", enum_2_string (pre_internal_snap_type));
2611         node->add_property ("pre-internal-snap-mode", enum_2_string (pre_internal_snap_mode));
2612         node->add_property ("edit-point", enum_2_string (_edit_point));
2613         snprintf (buf, sizeof(buf), "%d", _visible_track_count);
2614         node->add_property ("visible-track-count", buf);
2615
2616         snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame ());
2617         node->add_property ("playhead", buf);
2618         snprintf (buf, sizeof (buf), "%" PRIi64, leftmost_frame);
2619         node->add_property ("left-frame", buf);
2620         snprintf (buf, sizeof (buf), "%f", vertical_adjustment.get_value ());
2621         node->add_property ("y-origin", buf);
2622
2623         node->add_property ("show-measures", _show_measures ? "yes" : "no");
2624         node->add_property ("maximised", _maximised ? "yes" : "no");
2625         node->add_property ("follow-playhead", _follow_playhead ? "yes" : "no");
2626         node->add_property ("stationary-playhead", _stationary_playhead ? "yes" : "no");
2627         node->add_property ("region-list-sort-type", enum_2_string (_regions->sort_type ()));
2628         node->add_property ("mouse-mode", enum2str(mouse_mode));
2629         node->add_property ("join-object-range", smart_mode_action->get_active () ? "yes" : "no");
2630
2631         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2632         if (act) {
2633                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2634                 node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
2635         }
2636
2637         act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2638         if (act) {
2639                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2640                 node->add_property (X_("show-editor-list"), tact->get_active() ? "yes" : "no");
2641         }
2642
2643         snprintf (buf, sizeof (buf), "%d", _the_notebook.get_current_page ());
2644         node->add_property (X_("editor-list-page"), buf);
2645
2646         if (button_bindings) {
2647                 XMLNode* bb = new XMLNode (X_("Buttons"));
2648                 button_bindings->save (*bb);
2649                 node->add_child_nocopy (*bb);
2650         }
2651
2652         node->add_property (X_("show-marker-lines"), _show_marker_lines ? "yes" : "no");
2653
2654         node->add_child_nocopy (selection->get_state ());
2655         node->add_child_nocopy (_regions->get_state ());
2656
2657         snprintf (buf, sizeof (buf), "%" PRId64, nudge_clock->current_duration());
2658         node->add_property ("nudge-clock-value", buf);
2659
2660         node->add_child_nocopy (LuaInstance::instance()->get_action_state());
2661         node->add_child_nocopy (LuaInstance::instance()->get_hook_state());
2662
2663         return *node;
2664 }
2665
2666 /** if @param trackview_relative_offset is true, @param y y is an offset into the trackview area, in pixel units
2667  *  if @param trackview_relative_offset is false, @param y y is a global canvas *  coordinate, in pixel units
2668  *
2669  *  @return pair: TimeAxisView that y is over, layer index.
2670  *
2671  *  TimeAxisView may be 0.  Layer index is the layer number if the TimeAxisView is valid and is
2672  *  in stacked or expanded region display mode, otherwise 0.
2673  */
2674 std::pair<TimeAxisView *, double>
2675 Editor::trackview_by_y_position (double y, bool trackview_relative_offset) const
2676 {
2677         if (!trackview_relative_offset) {
2678                 y -= _trackview_group->canvas_origin().y;
2679         }
2680
2681         if (y < 0) {
2682                 return std::make_pair ( (TimeAxisView *) 0, 0);
2683         }
2684
2685         for (TrackViewList::const_iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
2686
2687                 std::pair<TimeAxisView*, double> const r = (*iter)->covers_y_position (y);
2688
2689                 if (r.first) {
2690                         return r;
2691                 }
2692         }
2693
2694         return std::make_pair ( (TimeAxisView *) 0, 0);
2695 }
2696
2697 /** Snap a position to the grid, if appropriate, taking into account current
2698  *  grid settings and also the state of any snap modifier keys that may be pressed.
2699  *  @param start Position to snap.
2700  *  @param event Event to get current key modifier information from, or 0.
2701  */
2702 void
2703 Editor::snap_to_with_modifier (framepos_t& start, GdkEvent const * event, RoundMode direction, bool for_mark)
2704 {
2705         if (!_session || !event) {
2706                 return;
2707         }
2708
2709         if (ArdourKeyboard::indicates_snap (event->button.state)) {
2710                 if (_snap_mode == SnapOff) {
2711                         snap_to_internal (start, direction, for_mark);
2712                 }
2713         } else {
2714                 if (_snap_mode != SnapOff) {
2715                         snap_to_internal (start, direction, for_mark);
2716                 } else if (ArdourKeyboard::indicates_snap_delta (event->button.state)) {
2717                         /* SnapOff, but we pressed the snap_delta modifier */
2718                         snap_to_internal (start, direction, for_mark);
2719                 }
2720         }
2721 }
2722
2723 void
2724 Editor::snap_to (framepos_t& start, RoundMode direction, bool for_mark, bool ensure_snap)
2725 {
2726         if (!_session || (_snap_mode == SnapOff && !ensure_snap)) {
2727                 return;
2728         }
2729
2730         snap_to_internal (start, direction, for_mark, ensure_snap);
2731 }
2732
2733 void
2734 Editor::timecode_snap_to_internal (framepos_t& start, RoundMode direction, bool /*for_mark*/)
2735 {
2736         const framepos_t one_timecode_second = (framepos_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame());
2737         framepos_t one_timecode_minute = (framepos_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame() * 60);
2738
2739         switch (_snap_type) {
2740         case SnapToTimecodeFrame:
2741                 if ((direction == RoundUpMaybe || direction == RoundDownMaybe) &&
2742                     fmod((double)start, (double)_session->frames_per_timecode_frame()) == 0) {
2743                         /* start is already on a whole timecode frame, do nothing */
2744                 } else if (((direction == 0) && (fmod((double)start, (double)_session->frames_per_timecode_frame()) > (_session->frames_per_timecode_frame() / 2))) || (direction > 0)) {
2745                         start = (framepos_t) (ceil ((double) start / _session->frames_per_timecode_frame()) * _session->frames_per_timecode_frame());
2746                 } else {
2747                         start = (framepos_t) (floor ((double) start / _session->frames_per_timecode_frame()) *  _session->frames_per_timecode_frame());
2748                 }
2749                 break;
2750
2751         case SnapToTimecodeSeconds:
2752                 if (_session->config.get_timecode_offset_negative()) {
2753                         start += _session->config.get_timecode_offset ();
2754                 } else {
2755                         start -= _session->config.get_timecode_offset ();
2756                 }
2757                 if ((direction == RoundUpMaybe || direction == RoundDownMaybe) &&
2758                     (start % one_timecode_second == 0)) {
2759                         /* start is already on a whole second, do nothing */
2760                 } else if (((direction == 0) && (start % one_timecode_second > one_timecode_second / 2)) || direction > 0) {
2761                         start = (framepos_t) ceil ((double) start / one_timecode_second) * one_timecode_second;
2762                 } else {
2763                         start = (framepos_t) floor ((double) start / one_timecode_second) * one_timecode_second;
2764                 }
2765
2766                 if (_session->config.get_timecode_offset_negative()) {
2767                         start -= _session->config.get_timecode_offset ();
2768                 } else {
2769                         start += _session->config.get_timecode_offset ();
2770                 }
2771                 break;
2772
2773         case SnapToTimecodeMinutes:
2774                 if (_session->config.get_timecode_offset_negative()) {
2775                         start += _session->config.get_timecode_offset ();
2776                 } else {
2777                         start -= _session->config.get_timecode_offset ();
2778                 }
2779                 if ((direction == RoundUpMaybe || direction == RoundDownMaybe) &&
2780                     (start % one_timecode_minute == 0)) {
2781                         /* start is already on a whole minute, do nothing */
2782                 } else if (((direction == 0) && (start % one_timecode_minute > one_timecode_minute / 2)) || direction > 0) {
2783                         start = (framepos_t) ceil ((double) start / one_timecode_minute) * one_timecode_minute;
2784                 } else {
2785                         start = (framepos_t) floor ((double) start / one_timecode_minute) * one_timecode_minute;
2786                 }
2787                 if (_session->config.get_timecode_offset_negative()) {
2788                         start -= _session->config.get_timecode_offset ();
2789                 } else {
2790                         start += _session->config.get_timecode_offset ();
2791                 }
2792                 break;
2793         default:
2794                 fatal << "Editor::smpte_snap_to_internal() called with non-timecode snap type!" << endmsg;
2795                 abort(); /*NOTREACHED*/
2796         }
2797 }
2798
2799 void
2800 Editor::snap_to_internal (framepos_t& start, RoundMode direction, bool for_mark, bool ensure_snap)
2801 {
2802         const framepos_t one_second = _session->frame_rate();
2803         const framepos_t one_minute = _session->frame_rate() * 60;
2804         framepos_t presnap = start;
2805         framepos_t before;
2806         framepos_t after;
2807
2808         switch (_snap_type) {
2809         case SnapToTimecodeFrame:
2810         case SnapToTimecodeSeconds:
2811         case SnapToTimecodeMinutes:
2812                 return timecode_snap_to_internal (start, direction, for_mark);
2813
2814         case SnapToCDFrame:
2815                 if ((direction == RoundUpMaybe || direction == RoundDownMaybe) &&
2816                     start % (one_second/75) == 0) {
2817                         /* start is already on a whole CD frame, do nothing */
2818                 } else if (((direction == 0) && (start % (one_second/75) > (one_second/75) / 2)) || (direction > 0)) {
2819                         start = (framepos_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
2820                 } else {
2821                         start = (framepos_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
2822                 }
2823                 break;
2824
2825         case SnapToSeconds:
2826                 if ((direction == RoundUpMaybe || direction == RoundDownMaybe) &&
2827                     start % one_second == 0) {
2828                         /* start is already on a whole second, do nothing */
2829                 } else if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
2830                         start = (framepos_t) ceil ((double) start / one_second) * one_second;
2831                 } else {
2832                         start = (framepos_t) floor ((double) start / one_second) * one_second;
2833                 }
2834                 break;
2835
2836         case SnapToMinutes:
2837                 if ((direction == RoundUpMaybe || direction == RoundDownMaybe) &&
2838                     start % one_minute == 0) {
2839                         /* start is already on a whole minute, do nothing */
2840                 } else if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
2841                         start = (framepos_t) ceil ((double) start / one_minute) * one_minute;
2842                 } else {
2843                         start = (framepos_t) floor ((double) start / one_minute) * one_minute;
2844                 }
2845                 break;
2846
2847         case SnapToBar:
2848                 start = _session->tempo_map().round_to_bar (start, direction);
2849                 break;
2850
2851         case SnapToBeat:
2852                 start = _session->tempo_map().round_to_beat (start, direction);
2853                 break;
2854
2855         case SnapToBeatDiv128:
2856                 start = _session->tempo_map().round_to_beat_subdivision (start, 128, direction);
2857                 break;
2858         case SnapToBeatDiv64:
2859                 start = _session->tempo_map().round_to_beat_subdivision (start, 64, direction);
2860                 break;
2861         case SnapToBeatDiv32:
2862                 start = _session->tempo_map().round_to_beat_subdivision (start, 32, direction);
2863                 break;
2864         case SnapToBeatDiv28:
2865                 start = _session->tempo_map().round_to_beat_subdivision (start, 28, direction);
2866                 break;
2867         case SnapToBeatDiv24:
2868                 start = _session->tempo_map().round_to_beat_subdivision (start, 24, direction);
2869                 break;
2870         case SnapToBeatDiv20:
2871                 start = _session->tempo_map().round_to_beat_subdivision (start, 20, direction);
2872                 break;
2873         case SnapToBeatDiv16:
2874                 start = _session->tempo_map().round_to_beat_subdivision (start, 16, direction);
2875                 break;
2876         case SnapToBeatDiv14:
2877                 start = _session->tempo_map().round_to_beat_subdivision (start, 14, direction);
2878                 break;
2879         case SnapToBeatDiv12:
2880                 start = _session->tempo_map().round_to_beat_subdivision (start, 12, direction);
2881                 break;
2882         case SnapToBeatDiv10:
2883                 start = _session->tempo_map().round_to_beat_subdivision (start, 10, direction);
2884                 break;
2885         case SnapToBeatDiv8:
2886                 start = _session->tempo_map().round_to_beat_subdivision (start, 8, direction);
2887                 break;
2888         case SnapToBeatDiv7:
2889                 start = _session->tempo_map().round_to_beat_subdivision (start, 7, direction);
2890                 break;
2891         case SnapToBeatDiv6:
2892                 start = _session->tempo_map().round_to_beat_subdivision (start, 6, direction);
2893                 break;
2894         case SnapToBeatDiv5:
2895                 start = _session->tempo_map().round_to_beat_subdivision (start, 5, direction);
2896                 break;
2897         case SnapToBeatDiv4:
2898                 start = _session->tempo_map().round_to_beat_subdivision (start, 4, direction);
2899                 break;
2900         case SnapToBeatDiv3:
2901                 start = _session->tempo_map().round_to_beat_subdivision (start, 3, direction);
2902                 break;
2903         case SnapToBeatDiv2:
2904                 start = _session->tempo_map().round_to_beat_subdivision (start, 2, direction);
2905                 break;
2906
2907         case SnapToMark:
2908                 if (for_mark) {
2909                         return;
2910                 }
2911
2912                 _session->locations()->marks_either_side (start, before, after);
2913
2914                 if (before == max_framepos && after == max_framepos) {
2915                         /* No marks to snap to, so just don't snap */
2916                         return;
2917                 } else if (before == max_framepos) {
2918                         start = after;
2919                 } else if (after == max_framepos) {
2920                         start = before;
2921                 } else if (before != max_framepos && after != max_framepos) {
2922                         /* have before and after */
2923                         if ((start - before) < (after - start)) {
2924                                 start = before;
2925                         } else {
2926                                 start = after;
2927                         }
2928                 }
2929
2930                 break;
2931
2932         case SnapToRegionStart:
2933         case SnapToRegionEnd:
2934         case SnapToRegionSync:
2935         case SnapToRegionBoundary:
2936                 if (!region_boundary_cache.empty()) {
2937
2938                         vector<framepos_t>::iterator prev = region_boundary_cache.end ();
2939                         vector<framepos_t>::iterator next = region_boundary_cache.end ();
2940
2941                         if (direction > 0) {
2942                                 next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2943                         } else {
2944                                 next = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2945                         }
2946
2947                         if (next != region_boundary_cache.begin ()) {
2948                                 prev = next;
2949                                 prev--;
2950                         }
2951
2952                         framepos_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
2953                         framepos_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
2954
2955                         if (start > (p + n) / 2) {
2956                                 start = n;
2957                         } else {
2958                                 start = p;
2959                         }
2960                 }
2961                 break;
2962         }
2963
2964         switch (_snap_mode) {
2965         case SnapNormal:
2966                 return;
2967
2968         case SnapMagnetic:
2969
2970                 if (ensure_snap) {
2971                         return;
2972                 }
2973
2974                 if (presnap > start) {
2975                         if (presnap > (start + pixel_to_sample(snap_threshold))) {
2976                                 start = presnap;
2977                         }
2978
2979                 } else if (presnap < start) {
2980                         if (presnap < (start - pixel_to_sample(snap_threshold))) {
2981                                 start = presnap;
2982                         }
2983                 }
2984
2985         default:
2986                 /* handled at entry */
2987                 return;
2988
2989         }
2990 }
2991
2992
2993 void
2994 Editor::setup_toolbar ()
2995 {
2996         HBox* mode_box = manage(new HBox);
2997         mode_box->set_border_width (2);
2998         mode_box->set_spacing(2);
2999
3000         HBox* mouse_mode_box = manage (new HBox);
3001         HBox* mouse_mode_hbox = manage (new HBox);
3002         VBox* mouse_mode_vbox = manage (new VBox);
3003         Alignment* mouse_mode_align = manage (new Alignment);
3004
3005         Glib::RefPtr<SizeGroup> mouse_mode_size_group = SizeGroup::create (SIZE_GROUP_VERTICAL);
3006         mouse_mode_size_group->add_widget (smart_mode_button);
3007         mouse_mode_size_group->add_widget (mouse_move_button);
3008         mouse_mode_size_group->add_widget (mouse_cut_button);
3009         mouse_mode_size_group->add_widget (mouse_select_button);
3010         mouse_mode_size_group->add_widget (mouse_timefx_button);
3011         mouse_mode_size_group->add_widget (mouse_audition_button);
3012         mouse_mode_size_group->add_widget (mouse_draw_button);
3013         mouse_mode_size_group->add_widget (mouse_content_button);
3014
3015         mouse_mode_size_group->add_widget (zoom_in_button);
3016         mouse_mode_size_group->add_widget (zoom_out_button);
3017         mouse_mode_size_group->add_widget (zoom_preset_selector);
3018         mouse_mode_size_group->add_widget (zoom_out_full_button);
3019         mouse_mode_size_group->add_widget (zoom_focus_selector);
3020
3021         mouse_mode_size_group->add_widget (tav_shrink_button);
3022         mouse_mode_size_group->add_widget (tav_expand_button);
3023         mouse_mode_size_group->add_widget (visible_tracks_selector);
3024
3025         mouse_mode_size_group->add_widget (snap_type_selector);
3026         mouse_mode_size_group->add_widget (snap_mode_selector);
3027
3028         mouse_mode_size_group->add_widget (edit_point_selector);
3029         mouse_mode_size_group->add_widget (edit_mode_selector);
3030
3031         mouse_mode_size_group->add_widget (*nudge_clock);
3032         mouse_mode_size_group->add_widget (nudge_forward_button);
3033         mouse_mode_size_group->add_widget (nudge_backward_button);
3034
3035         mouse_mode_hbox->set_spacing (2);
3036
3037         if (!ARDOUR::Profile->get_trx()) {
3038                 mouse_mode_hbox->pack_start (smart_mode_button, false, false);
3039         }
3040
3041         mouse_mode_hbox->pack_start (mouse_move_button, false, false);
3042         mouse_mode_hbox->pack_start (mouse_select_button, false, false);
3043
3044         if (!ARDOUR::Profile->get_mixbus()) {
3045                 mouse_mode_hbox->pack_start (mouse_cut_button, false, false);
3046         }
3047
3048         if (!ARDOUR::Profile->get_trx()) {
3049                 mouse_mode_hbox->pack_start (mouse_timefx_button, false, false);
3050                 mouse_mode_hbox->pack_start (mouse_audition_button, false, false);
3051                 mouse_mode_hbox->pack_start (mouse_draw_button, false, false);
3052                 mouse_mode_hbox->pack_start (mouse_content_button, false, false);
3053         }
3054
3055         mouse_mode_vbox->pack_start (*mouse_mode_hbox);
3056
3057         mouse_mode_align->add (*mouse_mode_vbox);
3058         mouse_mode_align->set (0.5, 1.0, 0.0, 0.0);
3059
3060         mouse_mode_box->pack_start (*mouse_mode_align, false, false);
3061
3062         edit_mode_selector.set_name ("mouse mode button");
3063
3064         if (!ARDOUR::Profile->get_trx()) {
3065                 mode_box->pack_start (edit_mode_selector, false, false);
3066         }
3067
3068         mode_box->pack_start (*mouse_mode_box, false, false);
3069
3070         /* Zoom */
3071
3072         _zoom_box.set_spacing (2);
3073         _zoom_box.set_border_width (2);
3074
3075         RefPtr<Action> act;
3076
3077         zoom_preset_selector.set_name ("zoom button");
3078         zoom_preset_selector.set_image(::get_icon ("time_exp"));
3079         zoom_preset_selector.set_size_request (42, -1);
3080
3081         zoom_in_button.set_name ("zoom button");
3082         zoom_in_button.set_icon (ArdourIcon::ZoomIn);
3083         act = ActionManager::get_action (X_("Editor"), X_("temporal-zoom-in"));
3084         zoom_in_button.set_related_action (act);
3085
3086         zoom_out_button.set_name ("zoom button");
3087         zoom_out_button.set_icon (ArdourIcon::ZoomOut);
3088         act = ActionManager::get_action (X_("Editor"), X_("temporal-zoom-out"));
3089         zoom_out_button.set_related_action (act);
3090
3091         zoom_out_full_button.set_name ("zoom button");
3092         zoom_out_full_button.set_icon (ArdourIcon::ZoomFull);
3093         act = ActionManager::get_action (X_("Editor"), X_("zoom-to-session"));
3094         zoom_out_full_button.set_related_action (act);
3095
3096         zoom_focus_selector.set_name ("zoom button");
3097
3098         if (ARDOUR::Profile->get_mixbus()) {
3099                 _zoom_box.pack_start (zoom_preset_selector, false, false);
3100         } else if (ARDOUR::Profile->get_trx()) {
3101                 mode_box->pack_start (zoom_out_button, false, false);
3102                 mode_box->pack_start (zoom_in_button, false, false);
3103         } else {
3104                 _zoom_box.pack_start (zoom_out_button, false, false);
3105                 _zoom_box.pack_start (zoom_in_button, false, false);
3106                 _zoom_box.pack_start (zoom_out_full_button, false, false);
3107                 _zoom_box.pack_start (zoom_focus_selector, false, false);
3108         }
3109
3110         /* Track zoom buttons */
3111         visible_tracks_selector.set_name ("zoom button");
3112         if (Profile->get_mixbus()) {
3113                 visible_tracks_selector.set_image(::get_icon ("tav_exp"));
3114                 visible_tracks_selector.set_size_request (42, -1);
3115         } else {
3116                 set_size_request_to_display_given_text (visible_tracks_selector, _("All"), 30, 2);
3117         }
3118
3119         tav_expand_button.set_name ("zoom button");
3120         tav_expand_button.set_icon (ArdourIcon::TimeAxisExpand);
3121         act = ActionManager::get_action (X_("Editor"), X_("expand-tracks"));
3122         tav_expand_button.set_related_action (act);
3123
3124         tav_shrink_button.set_name ("zoom button");
3125         tav_shrink_button.set_icon (ArdourIcon::TimeAxisShrink);
3126         act = ActionManager::get_action (X_("Editor"), X_("shrink-tracks"));
3127         tav_shrink_button.set_related_action (act);
3128
3129         if (ARDOUR::Profile->get_mixbus()) {
3130                 _zoom_box.pack_start (visible_tracks_selector);
3131         } else if (ARDOUR::Profile->get_trx()) {
3132                 _zoom_box.pack_start (tav_shrink_button);
3133                 _zoom_box.pack_start (tav_expand_button);
3134         } else {
3135                 _zoom_box.pack_start (visible_tracks_selector);
3136                 _zoom_box.pack_start (tav_shrink_button);
3137                 _zoom_box.pack_start (tav_expand_button);
3138         }
3139
3140         snap_box.set_spacing (2);
3141         snap_box.set_border_width (2);
3142
3143         snap_type_selector.set_name ("mouse mode button");
3144
3145         snap_mode_selector.set_name ("mouse mode button");
3146
3147         edit_point_selector.set_name ("mouse mode button");
3148
3149         snap_box.pack_start (snap_mode_selector, false, false);
3150         snap_box.pack_start (snap_type_selector, false, false);
3151         snap_box.pack_start (edit_point_selector, false, false);
3152
3153         /* Nudge */
3154
3155         HBox *nudge_box = manage (new HBox);
3156         nudge_box->set_spacing (2);
3157         nudge_box->set_border_width (2);
3158
3159         nudge_forward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_forward_release), false);
3160         nudge_backward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_backward_release), false);
3161
3162         nudge_box->pack_start (nudge_backward_button, false, false);
3163         nudge_box->pack_start (nudge_forward_button, false, false);
3164         nudge_box->pack_start (*nudge_clock, false, false);
3165
3166
3167         /* Pack everything in... */
3168
3169         HBox* hbox = manage (new HBox);
3170         hbox->set_spacing(2);
3171
3172         toolbar_hbox.set_spacing (2);
3173         toolbar_hbox.set_border_width (1);
3174
3175         toolbar_hbox.pack_start (*mode_box, false, false);
3176         if (!ARDOUR::Profile->get_trx()) {
3177                 toolbar_hbox.pack_start (_zoom_box, false, false);
3178                 toolbar_hbox.pack_start (*hbox, false, false);
3179         }
3180
3181         if (!ARDOUR::Profile->get_trx()) {
3182                 hbox->pack_start (snap_box, false, false);
3183                 hbox->pack_start (*nudge_box, false, false);
3184         }
3185
3186         hbox->show_all ();
3187
3188         toolbar_base.set_name ("ToolBarBase");
3189         toolbar_base.add (toolbar_hbox);
3190
3191         _toolbar_viewport.add (toolbar_base);
3192         /* stick to the required height but allow width to vary if there's not enough room */
3193         _toolbar_viewport.set_size_request (1, -1);
3194
3195         toolbar_frame.set_shadow_type (SHADOW_OUT);
3196         toolbar_frame.set_name ("BaseFrame");
3197         toolbar_frame.add (_toolbar_viewport);
3198 }
3199
3200 void
3201 Editor::build_edit_point_menu ()
3202 {
3203         using namespace Menu_Helpers;
3204
3205         edit_point_selector.AddMenuElem (MenuElem ( edit_point_strings[(int)EditAtPlayhead], sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_selection_done), (EditPoint) EditAtPlayhead)));
3206         if(!Profile->get_mixbus())
3207                 edit_point_selector.AddMenuElem (MenuElem ( edit_point_strings[(int)EditAtSelectedMarker], sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_selection_done), (EditPoint) EditAtSelectedMarker)));
3208         edit_point_selector.AddMenuElem (MenuElem ( edit_point_strings[(int)EditAtMouse], sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_selection_done), (EditPoint) EditAtMouse)));
3209
3210         set_size_request_to_display_given_text (edit_point_selector, edit_point_strings, COMBO_TRIANGLE_WIDTH, 2);
3211 }
3212
3213 void
3214 Editor::build_edit_mode_menu ()
3215 {
3216         using namespace Menu_Helpers;
3217
3218         edit_mode_selector.AddMenuElem (MenuElem ( edit_mode_strings[(int)Slide], sigc::bind (sigc::mem_fun(*this, &Editor::edit_mode_selection_done), (EditMode) Slide)));
3219 //      edit_mode_selector.AddMenuElem (MenuElem ( edit_mode_strings[(int)Splice], sigc::bind (sigc::mem_fun(*this, &Editor::edit_mode_selection_done), (EditMode) Splice)));
3220         edit_mode_selector.AddMenuElem (MenuElem ( edit_mode_strings[(int)Ripple], sigc::bind (sigc::mem_fun(*this, &Editor::edit_mode_selection_done), (EditMode) Ripple)));
3221         edit_mode_selector.AddMenuElem (MenuElem ( edit_mode_strings[(int)Lock], sigc::bind (sigc::mem_fun(*this, &Editor::edit_mode_selection_done), (EditMode)  Lock)));
3222
3223         set_size_request_to_display_given_text (edit_mode_selector, edit_mode_strings, COMBO_TRIANGLE_WIDTH, 2);
3224 }
3225
3226 void
3227 Editor::build_snap_mode_menu ()
3228 {
3229         using namespace Menu_Helpers;
3230
3231         snap_mode_selector.AddMenuElem (MenuElem ( snap_mode_strings[(int)SnapOff], sigc::bind (sigc::mem_fun(*this, &Editor::snap_mode_selection_done), (SnapMode) SnapOff)));
3232         snap_mode_selector.AddMenuElem (MenuElem ( snap_mode_strings[(int)SnapNormal], sigc::bind (sigc::mem_fun(*this, &Editor::snap_mode_selection_done), (SnapMode) SnapNormal)));
3233         snap_mode_selector.AddMenuElem (MenuElem ( snap_mode_strings[(int)SnapMagnetic], sigc::bind (sigc::mem_fun(*this, &Editor::snap_mode_selection_done), (SnapMode) SnapMagnetic)));
3234
3235         set_size_request_to_display_given_text (snap_mode_selector, snap_mode_strings, COMBO_TRIANGLE_WIDTH, 2);
3236 }
3237
3238 void
3239 Editor::build_snap_type_menu ()
3240 {
3241         using namespace Menu_Helpers;
3242
3243         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToCDFrame], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToCDFrame)));
3244         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToTimecodeFrame], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToTimecodeFrame)));
3245         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToTimecodeSeconds], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToTimecodeSeconds)));
3246         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToTimecodeMinutes], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToTimecodeMinutes)));
3247         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToSeconds], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToSeconds)));
3248         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToMinutes], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToMinutes)));
3249         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv128], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv128)));
3250         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv64], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv64)));
3251         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv32], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv32)));
3252         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv28], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv28)));
3253         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv24], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv24)));
3254         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv20], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv20)));
3255         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv16], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv16)));
3256         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv14], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv14)));
3257         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv12], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv12)));
3258         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv10], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv10)));
3259         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv8], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv8)));
3260         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv7], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv7)));
3261         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv6], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv6)));
3262         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv5], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv5)));
3263         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv4], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv4)));
3264         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv3], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv3)));
3265         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeatDiv2], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeatDiv2)));
3266         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBeat], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBeat)));
3267         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToBar], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToBar)));
3268         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToMark], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToMark)));
3269         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToRegionStart], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToRegionStart)));
3270         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToRegionEnd], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToRegionEnd)));
3271         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToRegionSync], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToRegionSync)));
3272         snap_type_selector.AddMenuElem (MenuElem ( snap_type_strings[(int)SnapToRegionBoundary], sigc::bind (sigc::mem_fun(*this, &Editor::snap_type_selection_done), (SnapType) SnapToRegionBoundary)));
3273
3274         set_size_request_to_display_given_text (snap_type_selector, snap_type_strings, COMBO_TRIANGLE_WIDTH, 2);
3275
3276 }
3277
3278 void
3279 Editor::setup_tooltips ()
3280 {
3281         set_tooltip (smart_mode_button, _("Smart Mode (add range functions to Grab Mode)"));
3282         set_tooltip (mouse_move_button, _("Grab Mode (select/move objects)"));
3283         set_tooltip (mouse_cut_button, _("Cut Mode (split regions)"));
3284         set_tooltip (mouse_select_button, _("Range Mode (select time ranges)"));
3285         set_tooltip (mouse_draw_button, _("Draw Mode (draw and edit gain/notes/automation)"));
3286         set_tooltip (mouse_timefx_button, _("Stretch Mode (time-stretch audio and midi regions, preserving pitch)"));
3287         set_tooltip (mouse_audition_button, _("Audition Mode (listen to regions)"));
3288         set_tooltip (mouse_content_button, _("Internal Edit Mode (edit notes and automation points)"));
3289         set_tooltip (*_group_tabs, _("Groups: click to (de)activate\nContext-click for other operations"));
3290         set_tooltip (nudge_forward_button, _("Nudge Region/Selection Later"));
3291         set_tooltip (nudge_backward_button, _("Nudge Region/Selection Earlier"));
3292         set_tooltip (zoom_in_button, _("Zoom In"));
3293         set_tooltip (zoom_out_button, _("Zoom Out"));
3294         set_tooltip (zoom_preset_selector, _("Zoom to Time Scale"));
3295         set_tooltip (zoom_out_full_button, _("Zoom to Session"));
3296         set_tooltip (zoom_focus_selector, _("Zoom Focus"));
3297         set_tooltip (tav_expand_button, _("Expand Tracks"));
3298         set_tooltip (tav_shrink_button, _("Shrink Tracks"));
3299         set_tooltip (visible_tracks_selector, _("Number of visible tracks"));
3300         set_tooltip (snap_type_selector, _("Snap/Grid Units"));
3301         set_tooltip (snap_mode_selector, _("Snap/Grid Mode"));
3302         set_tooltip (edit_point_selector, _("Edit Point"));
3303         set_tooltip (edit_mode_selector, _("Edit Mode"));
3304         set_tooltip (nudge_clock, _("Nudge Clock\n(controls distance used to nudge regions and selections)"));
3305 }
3306
3307 int
3308 Editor::convert_drop_to_paths (
3309                 vector<string>&                paths,
3310                 const RefPtr<Gdk::DragContext>& /*context*/,
3311                 gint                            /*x*/,
3312                 gint                            /*y*/,
3313                 const SelectionData&            data,
3314                 guint                           /*info*/,
3315                 guint                           /*time*/)
3316 {
3317         if (_session == 0) {
3318                 return -1;
3319         }
3320
3321         vector<string> uris = data.get_uris();
3322
3323         if (uris.empty()) {
3324
3325                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
3326                    are actually URI lists. So do it by hand.
3327                 */
3328
3329                 if (data.get_target() != "text/plain") {
3330                         return -1;
3331                 }
3332
3333                 /* Parse the "uri-list" format that Nautilus provides,
3334                    where each pathname is delimited by \r\n.
3335
3336                    THERE MAY BE NO NULL TERMINATING CHAR!!!
3337                 */
3338
3339                 string txt = data.get_text();
3340                 char* p;
3341                 const char* q;
3342
3343                 p = (char *) malloc (txt.length() + 1);
3344                 txt.copy (p, txt.length(), 0);
3345                 p[txt.length()] = '\0';
3346
3347                 while (p)
3348                 {
3349                         if (*p != '#')
3350                         {
3351                                 while (g_ascii_isspace (*p))
3352                                         p++;
3353
3354                                 q = p;
3355                                 while (*q && (*q != '\n') && (*q != '\r')) {
3356                                         q++;
3357                                 }
3358
3359                                 if (q > p)
3360                                 {
3361                                         q--;
3362                                         while (q > p && g_ascii_isspace (*q))
3363                                                 q--;
3364
3365                                         if (q > p)
3366                                         {
3367                                                 uris.push_back (string (p, q - p + 1));
3368                                         }
3369                                 }
3370                         }
3371                         p = strchr (p, '\n');
3372                         if (p)
3373                                 p++;
3374                 }
3375
3376                 free ((void*)p);
3377
3378                 if (uris.empty()) {
3379                         return -1;
3380                 }
3381         }
3382
3383         for (vector<string>::iterator i = uris.begin(); i != uris.end(); ++i) {
3384                 if ((*i).substr (0,7) == "file://") {
3385                         paths.push_back (Glib::filename_from_uri (*i));
3386                 }
3387         }
3388
3389         return 0;
3390 }
3391
3392 void
3393 Editor::new_tempo_section ()
3394 {
3395 }
3396
3397 void
3398 Editor::map_transport_state ()
3399 {
3400         ENSURE_GUI_THREAD (*this, &Editor::map_transport_state);
3401
3402         if (_session && _session->transport_stopped()) {
3403                 have_pending_keyboard_selection = false;
3404         }
3405
3406         update_loop_range_view ();
3407 }
3408
3409 /* UNDO/REDO */
3410
3411 void
3412 Editor::begin_selection_op_history ()
3413 {
3414         selection_op_cmd_depth = 0;
3415         selection_op_history_it = 0;
3416
3417         while(!selection_op_history.empty()) {
3418                 delete selection_op_history.front();
3419                 selection_op_history.pop_front();
3420         }
3421
3422         selection_undo_action->set_sensitive (false);
3423         selection_redo_action->set_sensitive (false);
3424         selection_op_history.push_front (&_selection_memento->get_state ());
3425 }
3426
3427 void
3428 Editor::begin_reversible_selection_op (string name)
3429 {
3430         if (_session) {
3431                 //cerr << name << endl;
3432                 /* begin/commit pairs can be nested */
3433                 selection_op_cmd_depth++;
3434         }
3435 }
3436
3437 void
3438 Editor::commit_reversible_selection_op ()
3439 {
3440         if (_session) {
3441                 if (selection_op_cmd_depth == 1) {
3442
3443                         if (selection_op_history_it > 0 && selection_op_history_it < selection_op_history.size()) {
3444                                 /**
3445                                     The user has undone some selection ops and then made a new one,
3446                                     making anything earlier in the list invalid.
3447                                 */
3448
3449                                 list<XMLNode *>::iterator it = selection_op_history.begin();
3450                                 list<XMLNode *>::iterator e_it = it;
3451                                 advance (e_it, selection_op_history_it);
3452
3453                                 for ( ; it != e_it; ++it) {
3454                                         delete *it;
3455                                 }
3456                                 selection_op_history.erase (selection_op_history.begin(), e_it);
3457                         }
3458
3459                         selection_op_history.push_front (&_selection_memento->get_state ());
3460                         selection_op_history_it = 0;
3461
3462                         selection_undo_action->set_sensitive (true);
3463                         selection_redo_action->set_sensitive (false);
3464                 }
3465
3466                 if (selection_op_cmd_depth > 0) {
3467                         selection_op_cmd_depth--;
3468                 }
3469         }
3470 }
3471
3472 void
3473 Editor::undo_selection_op ()
3474 {
3475         if (_session) {
3476                 selection_op_history_it++;
3477                 uint32_t n = 0;
3478                 for (std::list<XMLNode *>::iterator i = selection_op_history.begin(); i != selection_op_history.end(); ++i) {
3479                         if (n == selection_op_history_it) {
3480                                 _selection_memento->set_state (*(*i), Stateful::current_state_version);
3481                                 selection_redo_action->set_sensitive (true);
3482                         }
3483                         ++n;
3484                 }
3485                 /* is there an earlier entry? */
3486                 if ((selection_op_history_it + 1) >= selection_op_history.size()) {
3487                         selection_undo_action->set_sensitive (false);
3488                 }
3489         }
3490 }
3491
3492 void
3493 Editor::redo_selection_op ()
3494 {
3495         if (_session) {
3496                 if (selection_op_history_it > 0) {
3497                         selection_op_history_it--;
3498                 }
3499                 uint32_t n = 0;
3500                 for (std::list<XMLNode *>::iterator i = selection_op_history.begin(); i != selection_op_history.end(); ++i) {
3501                         if (n == selection_op_history_it) {
3502                                 _selection_memento->set_state (*(*i), Stateful::current_state_version);
3503                                 selection_undo_action->set_sensitive (true);
3504                         }
3505                         ++n;
3506                 }
3507
3508                 if (selection_op_history_it == 0) {
3509                         selection_redo_action->set_sensitive (false);
3510                 }
3511         }
3512 }
3513
3514 void
3515 Editor::begin_reversible_command (string name)
3516 {
3517         if (_session) {
3518                 before.push_back (&_selection_memento->get_state ());
3519                 _session->begin_reversible_command (name);
3520         }
3521 }
3522
3523 void
3524 Editor::begin_reversible_command (GQuark q)
3525 {
3526         if (_session) {
3527                 before.push_back (&_selection_memento->get_state ());
3528                 _session->begin_reversible_command (q);
3529         }
3530 }
3531
3532 void
3533 Editor::abort_reversible_command ()
3534 {
3535         if (_session) {
3536                 while(!before.empty()) {
3537                         delete before.front();
3538                         before.pop_front();
3539                 }
3540                 _session->abort_reversible_command ();
3541         }
3542 }
3543
3544 void
3545 Editor::commit_reversible_command ()
3546 {
3547         if (_session) {
3548                 if (before.size() == 1) {
3549                         _session->add_command (new MementoCommand<SelectionMemento>(*(_selection_memento), before.front(), &_selection_memento->get_state ()));
3550                         redo_action->set_sensitive(false);
3551                         undo_action->set_sensitive(true);
3552                         begin_selection_op_history ();
3553                 }
3554
3555                 if (before.empty()) {
3556                         cerr << "Please call begin_reversible_command() before commit_reversible_command()." << endl;
3557                 } else {
3558                         before.pop_back();
3559                 }
3560
3561                 _session->commit_reversible_command ();
3562         }
3563 }
3564
3565 void
3566 Editor::history_changed ()
3567 {
3568         string label;
3569
3570         if (undo_action && _session) {
3571                 if (_session->undo_depth() == 0) {
3572                         label = S_("Command|Undo");
3573                 } else {
3574                         label = string_compose(S_("Command|Undo (%1)"), _session->next_undo());
3575                 }
3576                 undo_action->property_label() = label;
3577         }
3578
3579         if (redo_action && _session) {
3580                 if (_session->redo_depth() == 0) {
3581                         label = _("Redo");
3582                         redo_action->set_sensitive (false);
3583                 } else {
3584                         label = string_compose(_("Redo (%1)"), _session->next_redo());
3585                         redo_action->set_sensitive (true);
3586                 }
3587                 redo_action->property_label() = label;
3588         }
3589 }
3590
3591 void
3592 Editor::duplicate_range (bool with_dialog)
3593 {
3594         float times = 1.0f;
3595
3596         RegionSelection rs = get_regions_from_selection_and_entered ();
3597
3598         if ( selection->time.length() == 0 && rs.empty()) {
3599                 return;
3600         }
3601
3602         if (with_dialog) {
3603
3604                 ArdourDialog win (_("Duplicate"));
3605                 Label label (_("Number of duplications:"));
3606                 Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
3607                 SpinButton spinner (adjustment, 0.0, 1);
3608                 HBox hbox;
3609
3610                 win.get_vbox()->set_spacing (12);
3611                 win.get_vbox()->pack_start (hbox);
3612                 hbox.set_border_width (6);
3613                 hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
3614
3615                 /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
3616                    place, visually. so do this by hand.
3617                 */
3618
3619                 hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
3620                 spinner.signal_activate().connect (sigc::bind (sigc::mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
3621                 spinner.grab_focus();
3622
3623                 hbox.show ();
3624                 label.show ();
3625                 spinner.show ();
3626
3627                 win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3628                 win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
3629                 win.set_default_response (RESPONSE_ACCEPT);
3630
3631                 spinner.grab_focus ();
3632
3633                 switch (win.run ()) {
3634                 case RESPONSE_ACCEPT:
3635                         break;
3636                 default:
3637                         return;
3638                 }
3639
3640                 times = adjustment.get_value();
3641         }
3642
3643         if ((current_mouse_mode() == Editing::MouseRange)) {
3644                 if (selection->time.length()) {
3645                         duplicate_selection (times);
3646                 }
3647         } else if (get_smart_mode()) {
3648                 if (selection->time.length()) {
3649                         duplicate_selection (times);
3650                 } else
3651                         duplicate_some_regions (rs, times);
3652         } else {
3653                 duplicate_some_regions (rs, times);
3654         }
3655 }
3656
3657 void
3658 Editor::set_edit_mode (EditMode m)
3659 {
3660         Config->set_edit_mode (m);
3661 }
3662
3663 void
3664 Editor::cycle_edit_mode ()
3665 {
3666         switch (Config->get_edit_mode()) {
3667         case Slide:
3668                 Config->set_edit_mode (Ripple);
3669                 break;
3670         case Splice:
3671         case Ripple:
3672                 Config->set_edit_mode (Lock);
3673                 break;
3674         case Lock:
3675                 Config->set_edit_mode (Slide);
3676                 break;
3677         }
3678 }
3679
3680 void
3681 Editor::edit_mode_selection_done ( EditMode m )
3682 {
3683         Config->set_edit_mode ( m );
3684 }
3685
3686 void
3687 Editor::snap_type_selection_done (SnapType snaptype)
3688 {
3689         RefPtr<RadioAction> ract = snap_type_action (snaptype);
3690         if (ract) {
3691                 ract->set_active ();
3692         }
3693 }
3694
3695 void
3696 Editor::snap_mode_selection_done (SnapMode mode)
3697 {
3698         RefPtr<RadioAction> ract = snap_mode_action (mode);
3699
3700         if (ract) {
3701                 ract->set_active (true);
3702         }
3703 }
3704
3705 void
3706 Editor::cycle_edit_point (bool with_marker)
3707 {
3708         if(Profile->get_mixbus())
3709                 with_marker = false;
3710
3711         switch (_edit_point) {
3712         case EditAtMouse:
3713                 set_edit_point_preference (EditAtPlayhead);
3714                 break;
3715         case EditAtPlayhead:
3716                 if (with_marker) {
3717                         set_edit_point_preference (EditAtSelectedMarker);
3718                 } else {
3719                         set_edit_point_preference (EditAtMouse);
3720                 }
3721                 break;
3722         case EditAtSelectedMarker:
3723                 set_edit_point_preference (EditAtMouse);
3724                 break;
3725         }
3726 }
3727
3728 void
3729 Editor::edit_point_selection_done (EditPoint ep)
3730 {
3731         set_edit_point_preference ( ep );
3732 }
3733
3734 void
3735 Editor::build_zoom_focus_menu ()
3736 {
3737         using namespace Menu_Helpers;
3738
3739         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusLeft], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusLeft)));
3740         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusRight], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusRight)));
3741         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusCenter], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusCenter)));
3742         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusPlayhead], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusPlayhead)));
3743         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusMouse], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusMouse)));
3744         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusEdit], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusEdit)));
3745
3746         set_size_request_to_display_given_text (zoom_focus_selector, zoom_focus_strings, COMBO_TRIANGLE_WIDTH, 2);
3747 }
3748
3749 void
3750 Editor::zoom_focus_selection_done ( ZoomFocus f )
3751 {
3752         RefPtr<RadioAction> ract = zoom_focus_action (f);
3753         if (ract) {
3754                 ract->set_active ();
3755         }
3756 }
3757
3758 void
3759 Editor::build_track_count_menu ()
3760 {
3761         using namespace Menu_Helpers;
3762
3763         if (!Profile->get_mixbus()) {
3764                 visible_tracks_selector.AddMenuElem (MenuElem (X_("1"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 1)));
3765                 visible_tracks_selector.AddMenuElem (MenuElem (X_("2"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 2)));
3766                 visible_tracks_selector.AddMenuElem (MenuElem (X_("3"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 3)));
3767                 visible_tracks_selector.AddMenuElem (MenuElem (X_("4"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 4)));
3768                 visible_tracks_selector.AddMenuElem (MenuElem (X_("8"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 8)));
3769                 visible_tracks_selector.AddMenuElem (MenuElem (X_("12"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 12)));
3770                 visible_tracks_selector.AddMenuElem (MenuElem (X_("16"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 16)));
3771                 visible_tracks_selector.AddMenuElem (MenuElem (X_("20"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 20)));
3772                 visible_tracks_selector.AddMenuElem (MenuElem (X_("24"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 24)));
3773                 visible_tracks_selector.AddMenuElem (MenuElem (X_("32"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 32)));
3774                 visible_tracks_selector.AddMenuElem (MenuElem (X_("64"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 64)));
3775                 visible_tracks_selector.AddMenuElem (MenuElem (_("Selection"), sigc::mem_fun(*this, &Editor::fit_selection)));
3776                 visible_tracks_selector.AddMenuElem (MenuElem (_("All"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 0)));
3777         } else {
3778                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 1 track"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 1)));
3779                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 2 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 2)));
3780                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 4 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 4)));
3781                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 8 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 8)));
3782                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 16 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 16)));
3783                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 24 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 24)));
3784                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 32 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 32)));
3785                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 48 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 48)));
3786                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit All tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 0)));
3787                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit Selection"), sigc::mem_fun(*this, &Editor::fit_selection)));
3788
3789                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 10 ms"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 10)));
3790                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 100 ms"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 100)));
3791                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 1 sec"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 1 * 1000)));
3792                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 10 sec"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 10 * 1000)));
3793                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 1 min"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 60 * 1000)));
3794                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 10 min"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 10 * 60 * 1000)));
3795                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 1 hour"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 60 * 60 * 1000)));
3796                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 8 hours"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 8 * 60 * 60 * 1000)));
3797                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 24 hours"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 24 * 60 * 60 * 1000)));
3798                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to Session"), sigc::mem_fun(*this, &Editor::temporal_zoom_session)));
3799                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to Range/Region Selection"), sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_selection), false)));
3800         }
3801 }
3802
3803 void
3804 Editor::set_zoom_preset (int64_t ms)
3805 {
3806         if ( ms <= 0 ) {
3807                 temporal_zoom_session();
3808                 return;
3809         }
3810
3811         ARDOUR::framecnt_t const sample_rate = ARDOUR::AudioEngine::instance()->sample_rate();
3812         temporal_zoom( (sample_rate * ms / 1000) / _visible_canvas_width );
3813 }
3814
3815 void
3816 Editor::set_visible_track_count (int32_t n)
3817 {
3818         _visible_track_count = n;
3819
3820         /* if the canvas hasn't really been allocated any size yet, just
3821            record the desired number of visible tracks and return. when canvas
3822            allocation happens, we will get called again and then we can do the
3823            real work.
3824         */
3825
3826         if (_visible_canvas_height <= 1) {
3827                 return;
3828         }
3829
3830         int h;
3831         string str;
3832         DisplaySuspender ds;
3833
3834         if (_visible_track_count > 0) {
3835                 h = trackviews_height() / _visible_track_count;
3836                 std::ostringstream s;
3837                 s << _visible_track_count;
3838                 str = s.str();
3839         } else if (_visible_track_count == 0) {
3840                 uint32_t n = 0;
3841                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3842                         if ((*i)->marked_for_display()) {
3843                                 ++n;
3844                         }
3845                 }
3846                 h = trackviews_height() / n;
3847                 str = _("All");
3848         } else {
3849                 /* negative value means that the visible track count has
3850                    been overridden by explicit track height changes.
3851                 */
3852                 visible_tracks_selector.set_text (X_("*"));
3853                 return;
3854         }
3855
3856         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3857                 (*i)->set_height (h, TimeAxisView::HeightPerLane);
3858         }
3859
3860         if (str != visible_tracks_selector.get_text()) {
3861                 visible_tracks_selector.set_text (str);
3862         }
3863 }
3864
3865 void
3866 Editor::override_visible_track_count ()
3867 {
3868         _visible_track_count = -1;
3869         visible_tracks_selector.set_text ( _("*") );
3870 }
3871
3872 bool
3873 Editor::edit_controls_button_release (GdkEventButton* ev)
3874 {
3875         if (Keyboard::is_context_menu_event (ev)) {
3876                 ARDOUR_UI::instance()->add_route ();
3877         } else if (ev->button == 1) {
3878                 selection->clear_tracks ();
3879         }
3880
3881         return true;
3882 }
3883
3884 bool
3885 Editor::mouse_select_button_release (GdkEventButton* ev)
3886 {
3887         /* this handles just right-clicks */
3888
3889         if (ev->button != 3) {
3890                 return false;
3891         }
3892
3893         return true;
3894 }
3895
3896 void
3897 Editor::set_zoom_focus (ZoomFocus f)
3898 {
3899         string str = zoom_focus_strings[(int)f];
3900
3901         if (str != zoom_focus_selector.get_text()) {
3902                 zoom_focus_selector.set_text (str);
3903         }
3904
3905         if (zoom_focus != f) {
3906                 zoom_focus = f;
3907                 instant_save ();
3908         }
3909 }
3910
3911 void
3912 Editor::cycle_zoom_focus ()
3913 {
3914         switch (zoom_focus) {
3915         case ZoomFocusLeft:
3916                 set_zoom_focus (ZoomFocusRight);
3917                 break;
3918         case ZoomFocusRight:
3919                 set_zoom_focus (ZoomFocusCenter);
3920                 break;
3921         case ZoomFocusCenter:
3922                 set_zoom_focus (ZoomFocusPlayhead);
3923                 break;
3924         case ZoomFocusPlayhead:
3925                 set_zoom_focus (ZoomFocusMouse);
3926                 break;
3927         case ZoomFocusMouse:
3928                 set_zoom_focus (ZoomFocusEdit);
3929                 break;
3930         case ZoomFocusEdit:
3931                 set_zoom_focus (ZoomFocusLeft);
3932                 break;
3933         }
3934 }
3935
3936 void
3937 Editor::set_show_measures (bool yn)
3938 {
3939         if (_show_measures != yn) {
3940                 hide_measures ();
3941
3942                 if ((_show_measures = yn) == true) {
3943                         if (tempo_lines) {
3944                                 tempo_lines->show();
3945                         }
3946
3947                         std::vector<TempoMap::BBTPoint> grid;
3948                         compute_current_bbt_points (grid, leftmost_frame, leftmost_frame + current_page_samples());
3949                         draw_measures (grid);
3950                 }
3951
3952                 instant_save ();
3953         }
3954 }
3955
3956 void
3957 Editor::toggle_follow_playhead ()
3958 {
3959         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3960         if (act) {
3961                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3962                 set_follow_playhead (tact->get_active());
3963         }
3964 }
3965
3966 /** @param yn true to follow playhead, otherwise false.
3967  *  @param catch_up true to reset the editor view to show the playhead (if yn == true), otherwise false.
3968  */
3969 void
3970 Editor::set_follow_playhead (bool yn, bool catch_up)
3971 {
3972         if (_follow_playhead != yn) {
3973                 if ((_follow_playhead = yn) == true && catch_up) {
3974                         /* catch up */
3975                         reset_x_origin_to_follow_playhead ();
3976                 }
3977                 instant_save ();
3978         }
3979 }
3980
3981 void
3982 Editor::toggle_stationary_playhead ()
3983 {
3984         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-stationary-playhead"));
3985         if (act) {
3986                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3987                 set_stationary_playhead (tact->get_active());
3988         }
3989 }
3990
3991 void
3992 Editor::set_stationary_playhead (bool yn)
3993 {
3994         if (_stationary_playhead != yn) {
3995                 if ((_stationary_playhead = yn) == true) {
3996                         /* catch up */
3997                         // FIXME need a 3.0 equivalent of this 2.X call
3998                         // update_current_screen ();
3999                 }
4000                 instant_save ();
4001         }
4002 }
4003
4004 PlaylistSelector&
4005 Editor::playlist_selector () const
4006 {
4007         return *_playlist_selector;
4008 }
4009
4010 framecnt_t
4011 Editor::get_paste_offset (framepos_t pos, unsigned paste_count, framecnt_t duration)
4012 {
4013         if (paste_count == 0) {
4014                 /* don't bother calculating an offset that will be zero anyway */
4015                 return 0;
4016         }
4017
4018         /* calculate basic unsnapped multi-paste offset */
4019         framecnt_t offset = paste_count * duration;
4020
4021         /* snap offset so pos + offset is aligned to the grid */
4022         framepos_t offset_pos = pos + offset;
4023         snap_to(offset_pos, RoundUpMaybe);
4024         offset = offset_pos - pos;
4025
4026         return offset;
4027 }
4028
4029 unsigned
4030 Editor::get_grid_beat_divisions(framepos_t position)
4031 {
4032         switch (_snap_type) {
4033         case SnapToBeatDiv128: return 128;
4034         case SnapToBeatDiv64:  return 64;
4035         case SnapToBeatDiv32:  return 32;
4036         case SnapToBeatDiv28:  return 28;
4037         case SnapToBeatDiv24:  return 24;
4038         case SnapToBeatDiv20:  return 20;
4039         case SnapToBeatDiv16:  return 16;
4040         case SnapToBeatDiv14:  return 14;
4041         case SnapToBeatDiv12:  return 12;
4042         case SnapToBeatDiv10:  return 10;
4043         case SnapToBeatDiv8:   return 8;
4044         case SnapToBeatDiv7:   return 7;
4045         case SnapToBeatDiv6:   return 6;
4046         case SnapToBeatDiv5:   return 5;
4047         case SnapToBeatDiv4:   return 4;
4048         case SnapToBeatDiv3:   return 3;
4049         case SnapToBeatDiv2:   return 2;
4050         default:               return 0;
4051         }
4052         return 0;
4053 }
4054
4055 /** returns the current musical grid divisiions using the supplied modifier mask from a GtkEvent.
4056     if the grid is non-musical, returns 0.
4057     if the grid is snapped to bars, returns -1.
4058     @param event_state the current keyboard modifier mask.
4059 */
4060 unsigned
4061 Editor::get_grid_music_divisions (uint32_t event_state)
4062 {
4063         if (snap_mode() == Editing::SnapOff && !ArdourKeyboard::indicates_snap (event_state)) {
4064                 return 0;
4065         }
4066
4067         if (snap_mode() != Editing::SnapOff && ArdourKeyboard::indicates_snap (event_state)) {
4068                 return 0;
4069         }
4070
4071         switch (_snap_type) {
4072         case SnapToBeatDiv128: return 128;
4073         case SnapToBeatDiv64:  return 64;
4074         case SnapToBeatDiv32:  return 32;
4075         case SnapToBeatDiv28:  return 28;
4076         case SnapToBeatDiv24:  return 24;
4077         case SnapToBeatDiv20:  return 20;
4078         case SnapToBeatDiv16:  return 16;
4079         case SnapToBeatDiv14:  return 14;
4080         case SnapToBeatDiv12:  return 12;
4081         case SnapToBeatDiv10:  return 10;
4082         case SnapToBeatDiv8:   return 8;
4083         case SnapToBeatDiv7:   return 7;
4084         case SnapToBeatDiv6:   return 6;
4085         case SnapToBeatDiv5:   return 5;
4086         case SnapToBeatDiv4:   return 4;
4087         case SnapToBeatDiv3:   return 3;
4088         case SnapToBeatDiv2:   return 2;
4089         case SnapToBeat:       return 1;
4090         case SnapToBar :       return -1;
4091         default:               return 0;
4092         }
4093         return 0;
4094 }
4095
4096 Evoral::Beats
4097 Editor::get_grid_type_as_beats (bool& success, framepos_t position)
4098 {
4099         success = true;
4100
4101         const unsigned divisions = get_grid_beat_divisions(position);
4102         if (divisions) {
4103                 return Evoral::Beats(1.0 / (double)get_grid_beat_divisions(position));
4104         }
4105
4106         switch (_snap_type) {
4107         case SnapToBeat:
4108                 return Evoral::Beats(1.0);
4109         case SnapToBar:
4110                 if (_session) {
4111                         return Evoral::Beats(_session->tempo_map().meter_at_frame (position).divisions_per_bar());
4112                 }
4113                 break;
4114         default:
4115                 success = false;
4116                 break;
4117         }
4118
4119         return Evoral::Beats();
4120 }
4121
4122 framecnt_t
4123 Editor::get_nudge_distance (framepos_t pos, framecnt_t& next)
4124 {
4125         framecnt_t ret;
4126
4127         ret = nudge_clock->current_duration (pos);
4128         next = ret + 1; /* XXXX fix me */
4129
4130         return ret;
4131 }
4132
4133 int
4134 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
4135 {
4136         ArdourDialog dialog (_("Playlist Deletion"));
4137         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
4138                                         "If it is kept, its audio files will not be cleaned.\n"
4139                                         "If it is deleted, audio files used by it alone will be cleaned."),
4140                                       pl->name()));
4141
4142         dialog.set_position (WIN_POS_CENTER);
4143         dialog.get_vbox()->pack_start (label);
4144
4145         label.show ();
4146
4147         dialog.add_button (_("Delete All Unused"), RESPONSE_YES); // needs clarification. this and all remaining ones
4148         dialog.add_button (_("Delete Playlist"), RESPONSE_ACCEPT);
4149         Button* keep = dialog.add_button (_("Keep Playlist"), RESPONSE_REJECT);
4150         dialog.add_button (_("Keep Remaining"), RESPONSE_NO); // ditto
4151         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
4152
4153         // by default gtk uses the left most button
4154         keep->grab_focus ();
4155
4156         switch (dialog.run ()) {
4157         case RESPONSE_NO:
4158                 /* keep this and all remaining ones */
4159                 return -2;
4160                 break;
4161
4162         case RESPONSE_YES:
4163                 /* delete this and all others */
4164                 return 2;
4165                 break;
4166
4167         case RESPONSE_ACCEPT:
4168                 /* delete the playlist */
4169                 return 1;
4170                 break;
4171
4172         case RESPONSE_REJECT:
4173                 /* keep the playlist */
4174                 return 0;
4175                 break;
4176
4177         default:
4178                 break;
4179         }
4180
4181         return -1;
4182 }
4183
4184 bool
4185 Editor::audio_region_selection_covers (framepos_t where)
4186 {
4187         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
4188                 if ((*a)->region()->covers (where)) {
4189                         return true;
4190                 }
4191         }
4192
4193         return false;
4194 }
4195
4196 void
4197 Editor::prepare_for_cleanup ()
4198 {
4199         cut_buffer->clear_regions ();
4200         cut_buffer->clear_playlists ();
4201
4202         selection->clear_regions ();
4203         selection->clear_playlists ();
4204
4205         _regions->suspend_redisplay ();
4206 }
4207
4208 void
4209 Editor::finish_cleanup ()
4210 {
4211         _regions->resume_redisplay ();
4212 }
4213
4214 Location*
4215 Editor::transport_loop_location()
4216 {
4217         if (_session) {
4218                 return _session->locations()->auto_loop_location();
4219         } else {
4220                 return 0;
4221         }
4222 }
4223
4224 Location*
4225 Editor::transport_punch_location()
4226 {
4227         if (_session) {
4228                 return _session->locations()->auto_punch_location();
4229         } else {
4230                 return 0;
4231         }
4232 }
4233
4234 bool
4235 Editor::control_layout_scroll (GdkEventScroll* ev)
4236 {
4237         /* Just forward to the normal canvas scroll method. The coordinate
4238            systems are different but since the canvas is always larger than the
4239            track headers, and aligned with the trackview area, this will work.
4240
4241            In the not too distant future this layout is going away anyway and
4242            headers will be on the canvas.
4243         */
4244         return canvas_scroll_event (ev, false);
4245 }
4246
4247 void
4248 Editor::session_state_saved (string)
4249 {
4250         update_title ();
4251         _snapshots->redisplay ();
4252 }
4253
4254 void
4255 Editor::maximise_editing_space ()
4256 {
4257         if (_maximised) {
4258                 return;
4259         }
4260
4261         Gtk::Window* toplevel = current_toplevel();
4262
4263         if (toplevel) {
4264                 toplevel->fullscreen ();
4265                 _maximised = true;
4266         }
4267 }
4268
4269 void
4270 Editor::restore_editing_space ()
4271 {
4272         if (!_maximised) {
4273                 return;
4274         }
4275
4276         Gtk::Window* toplevel = current_toplevel();
4277
4278         if (toplevel) {
4279                 toplevel->unfullscreen();
4280                 _maximised = false;
4281         }
4282 }
4283
4284 /**
4285  *  Make new playlists for a given track and also any others that belong
4286  *  to the same active route group with the `select' property.
4287  *  @param v Track.
4288  */
4289
4290 void
4291 Editor::new_playlists (TimeAxisView* v)
4292 {
4293         begin_reversible_command (_("new playlists"));
4294         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4295         _session->playlists->get (playlists);
4296         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, ARDOUR::Properties::group_select.property_id);
4297         commit_reversible_command ();
4298 }
4299
4300 /**
4301  *  Use a copy of the current playlist for a given track and also any others that belong
4302  *  to the same active route group with the `select' property.
4303  *  @param v Track.
4304  */
4305
4306 void
4307 Editor::copy_playlists (TimeAxisView* v)
4308 {
4309         begin_reversible_command (_("copy playlists"));
4310         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4311         _session->playlists->get (playlists);
4312         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, ARDOUR::Properties::group_select.property_id);
4313         commit_reversible_command ();
4314 }
4315
4316 /** Clear the current playlist for a given track and also any others that belong
4317  *  to the same active route group with the `select' property.
4318  *  @param v Track.
4319  */
4320
4321 void
4322 Editor::clear_playlists (TimeAxisView* v)
4323 {
4324         begin_reversible_command (_("clear playlists"));
4325         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4326         _session->playlists->get (playlists);
4327         mapover_tracks (sigc::mem_fun (*this, &Editor::mapped_clear_playlist), v, ARDOUR::Properties::group_select.property_id);
4328         commit_reversible_command ();
4329 }
4330
4331 void
4332 Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4333 {
4334         atv.use_new_playlist (sz > 1 ? false : true, playlists);
4335 }
4336
4337 void
4338 Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4339 {
4340         atv.use_copy_playlist (sz > 1 ? false : true, playlists);
4341 }
4342
4343 void
4344 Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t /*sz*/)
4345 {
4346         atv.clear_playlist ();
4347 }
4348
4349 double
4350 Editor::get_y_origin () const
4351 {
4352         return vertical_adjustment.get_value ();
4353 }
4354
4355 /** Queue up a change to the viewport x origin.
4356  *  @param frame New x origin.
4357  */
4358 void
4359 Editor::reset_x_origin (framepos_t frame)
4360 {
4361         pending_visual_change.add (VisualChange::TimeOrigin);
4362         pending_visual_change.time_origin = frame;
4363         ensure_visual_change_idle_handler ();
4364 }
4365
4366 void
4367 Editor::reset_y_origin (double y)
4368 {
4369         pending_visual_change.add (VisualChange::YOrigin);
4370         pending_visual_change.y_origin = y;
4371         ensure_visual_change_idle_handler ();
4372 }
4373
4374 void
4375 Editor::reset_zoom (framecnt_t spp)
4376 {
4377         if (spp == samples_per_pixel) {
4378                 return;
4379         }
4380
4381         pending_visual_change.add (VisualChange::ZoomLevel);
4382         pending_visual_change.samples_per_pixel = spp;
4383         ensure_visual_change_idle_handler ();
4384 }
4385
4386 void
4387 Editor::reposition_and_zoom (framepos_t frame, double fpu)
4388 {
4389         reset_x_origin (frame);
4390         reset_zoom (fpu);
4391
4392         if (!no_save_visual) {
4393                 undo_visual_stack.push_back (current_visual_state(false));
4394         }
4395 }
4396
4397 Editor::VisualState::VisualState (bool with_tracks)
4398         : gui_state (with_tracks ? new GUIObjectState : 0)
4399 {
4400 }
4401
4402 Editor::VisualState::~VisualState ()
4403 {
4404         delete gui_state;
4405 }
4406
4407 Editor::VisualState*
4408 Editor::current_visual_state (bool with_tracks)
4409 {
4410         VisualState* vs = new VisualState (with_tracks);
4411         vs->y_position = vertical_adjustment.get_value();
4412         vs->samples_per_pixel = samples_per_pixel;
4413         vs->leftmost_frame = leftmost_frame;
4414         vs->zoom_focus = zoom_focus;
4415
4416         if (with_tracks) {
4417                 vs->gui_state->set_state (ARDOUR_UI::instance()->gui_object_state->get_state());
4418         }
4419
4420         return vs;
4421 }
4422
4423 void
4424 Editor::undo_visual_state ()
4425 {
4426         if (undo_visual_stack.empty()) {
4427                 return;
4428         }
4429
4430         VisualState* vs = undo_visual_stack.back();
4431         undo_visual_stack.pop_back();
4432
4433
4434         redo_visual_stack.push_back (current_visual_state (vs ? vs->gui_state != 0 : false));
4435
4436         if (vs) {
4437                 use_visual_state (*vs);
4438         }
4439 }
4440
4441 void
4442 Editor::redo_visual_state ()
4443 {
4444         if (redo_visual_stack.empty()) {
4445                 return;
4446         }
4447
4448         VisualState* vs = redo_visual_stack.back();
4449         redo_visual_stack.pop_back();
4450
4451         // can 'vs' really be 0? Is there a place that puts NULL pointers onto the stack?
4452         // why do we check here?
4453         undo_visual_stack.push_back (current_visual_state (vs ? (vs->gui_state != 0) : false));
4454
4455         if (vs) {
4456                 use_visual_state (*vs);
4457         }
4458 }
4459
4460 void
4461 Editor::swap_visual_state ()
4462 {
4463         if (undo_visual_stack.empty()) {
4464                 redo_visual_state ();
4465         } else {
4466                 undo_visual_state ();
4467         }
4468 }
4469
4470 void
4471 Editor::use_visual_state (VisualState& vs)
4472 {
4473         PBD::Unwinder<bool> nsv (no_save_visual, true);
4474         DisplaySuspender ds;
4475
4476         vertical_adjustment.set_value (vs.y_position);
4477
4478         set_zoom_focus (vs.zoom_focus);
4479         reposition_and_zoom (vs.leftmost_frame, vs.samples_per_pixel);
4480
4481         if (vs.gui_state) {
4482                 ARDOUR_UI::instance()->gui_object_state->set_state (vs.gui_state->get_state());
4483
4484                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4485                         (*i)->clear_property_cache();
4486                         (*i)->reset_visual_state ();
4487                 }
4488         }
4489
4490         _routes->update_visibility ();
4491 }
4492
4493 /** This is the core function that controls the zoom level of the canvas. It is called
4494  *  whenever one or more calls are made to reset_zoom().  It executes in an idle handler.
4495  *  @param spp new number of samples per pixel
4496  */
4497 void
4498 Editor::set_samples_per_pixel (framecnt_t spp)
4499 {
4500         if (spp < 1) {
4501                 return;
4502         }
4503
4504         const framecnt_t three_days = 3 * 24 * 60 * 60 * (_session ? _session->frame_rate() : 48000);
4505         const framecnt_t lots_of_pixels = 4000;
4506
4507         /* if the zoom level is greater than what you'd get trying to display 3
4508          * days of audio on a really big screen, then it's too big.
4509          */
4510
4511         if (spp * lots_of_pixels > three_days) {
4512                 return;
4513         }
4514
4515         samples_per_pixel = spp;
4516
4517         if (tempo_lines) {
4518                 tempo_lines->tempo_map_changed();
4519         }
4520
4521         bool const showing_time_selection = selection->time.length() > 0;
4522
4523         if (showing_time_selection && selection->time.start () != selection->time.end_frame ()) {
4524                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4525                         (*i)->reshow_selection (selection->time);
4526                 }
4527         }
4528
4529         ZoomChanged (); /* EMIT_SIGNAL */
4530
4531         ArdourCanvas::GtkCanvasViewport* c;
4532
4533         c = get_track_canvas();
4534         if (c) {
4535                 c->canvas()->zoomed ();
4536         }
4537
4538         if (playhead_cursor) {
4539                 playhead_cursor->set_position (playhead_cursor->current_frame ());
4540         }
4541
4542         refresh_location_display();
4543         _summary->set_overlays_dirty ();
4544
4545         update_marker_labels ();
4546
4547         instant_save ();
4548 }
4549
4550 void
4551 Editor::queue_visual_videotimeline_update ()
4552 {
4553         /* TODO:
4554          * pending_visual_change.add (VisualChange::VideoTimeline);
4555          * or maybe even more specific: which videotimeline-image
4556          * currently it calls update_video_timeline() to update
4557          * _all outdated_ images on the video-timeline.
4558          * see 'exposeimg()' in video_image_frame.cc
4559          */
4560         ensure_visual_change_idle_handler ();
4561 }
4562
4563 void
4564 Editor::ensure_visual_change_idle_handler ()
4565 {
4566         if (pending_visual_change.idle_handler_id < 0) {
4567                 // see comment in add_to_idle_resize above.
4568                 pending_visual_change.idle_handler_id = g_idle_add_full (G_PRIORITY_HIGH_IDLE + 10, _idle_visual_changer, this, NULL);
4569                 pending_visual_change.being_handled = false;
4570         }
4571 }
4572
4573 int
4574 Editor::_idle_visual_changer (void* arg)
4575 {
4576         return static_cast<Editor*>(arg)->idle_visual_changer ();
4577 }
4578
4579 int
4580 Editor::idle_visual_changer ()
4581 {
4582         /* set_horizontal_position() below (and maybe other calls) call
4583            gtk_main_iteration(), so it's possible that a signal will be handled
4584            half-way through this method.  If this signal wants an
4585            idle_visual_changer we must schedule another one after this one, so
4586            mark the idle_handler_id as -1 here to allow that.  Also make a note
4587            that we are doing the visual change, so that changes in response to
4588            super-rapid-screen-update can be dropped if we are still processing
4589            the last one.
4590         */
4591
4592         pending_visual_change.idle_handler_id = -1;
4593         pending_visual_change.being_handled = true;
4594
4595         VisualChange vc = pending_visual_change;
4596
4597         pending_visual_change.pending = (VisualChange::Type) 0;
4598
4599         visual_changer (vc);
4600
4601         pending_visual_change.being_handled = false;
4602
4603         return 0; /* this is always a one-shot call */
4604 }
4605
4606 void
4607 Editor::visual_changer (const VisualChange& vc)
4608 {
4609         double const last_time_origin = horizontal_position ();
4610
4611         if (vc.pending & VisualChange::ZoomLevel) {
4612                 set_samples_per_pixel (vc.samples_per_pixel);
4613
4614                 compute_fixed_ruler_scale ();
4615
4616                 std::vector<TempoMap::BBTPoint> grid;
4617                 compute_current_bbt_points (grid, vc.time_origin, pending_visual_change.time_origin + current_page_samples());
4618                 compute_bbt_ruler_scale (grid, vc.time_origin, pending_visual_change.time_origin + current_page_samples());
4619                 update_tempo_based_rulers (grid);
4620
4621                 update_video_timeline();
4622         }
4623
4624         if (vc.pending & VisualChange::TimeOrigin) {
4625                 set_horizontal_position (vc.time_origin / samples_per_pixel);
4626         }
4627
4628         if (vc.pending & VisualChange::YOrigin) {
4629                 vertical_adjustment.set_value (vc.y_origin);
4630         }
4631
4632         if (last_time_origin == horizontal_position ()) {
4633                 /* changed signal not emitted */
4634                 update_fixed_rulers ();
4635                 redisplay_tempo (true);
4636         }
4637
4638         if (!(vc.pending & VisualChange::ZoomLevel)) {
4639                 update_video_timeline();
4640         }
4641
4642         _summary->set_overlays_dirty ();
4643 }
4644
4645 struct EditorOrderTimeAxisSorter {
4646     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
4647             return a->order () < b->order ();
4648     }
4649 };
4650
4651 void
4652 Editor::sort_track_selection (TrackViewList& sel)
4653 {
4654         EditorOrderTimeAxisSorter cmp;
4655         sel.sort (cmp);
4656 }
4657
4658 framepos_t
4659 Editor::get_preferred_edit_position (EditIgnoreOption ignore, bool from_context_menu, bool from_outside_canvas)
4660 {
4661         bool ignored;
4662         framepos_t where = 0;
4663         EditPoint ep = _edit_point;
4664
4665         if (Profile->get_mixbus())
4666                 if (ep == EditAtSelectedMarker)
4667                         ep = EditAtPlayhead;
4668
4669         if (from_outside_canvas && (ep == EditAtMouse)) {
4670                 ep = EditAtPlayhead;
4671         } else if (from_context_menu && (ep == EditAtMouse)) {
4672                 return  canvas_event_sample (&context_click_event, 0, 0);
4673         }
4674
4675         if (entered_marker) {
4676                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use entered marker @ %1\n", entered_marker->position()));
4677                 return entered_marker->position();
4678         }
4679
4680         if ( (ignore==EDIT_IGNORE_PHEAD) && ep == EditAtPlayhead) {
4681                 ep = EditAtSelectedMarker;
4682         }
4683
4684         if ( (ignore==EDIT_IGNORE_MOUSE) && ep == EditAtMouse) {
4685                 ep = EditAtPlayhead;
4686         }
4687
4688         switch (ep) {
4689         case EditAtPlayhead:
4690                 if (_dragging_playhead) {
4691                         where = *_control_scroll_target;
4692                 } else {
4693                         where = _session->audible_frame();
4694                 }
4695                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use playhead @ %1\n", where));
4696                 break;
4697
4698         case EditAtSelectedMarker:
4699                 if (!selection->markers.empty()) {
4700                         bool is_start;
4701                         Location* loc = find_location_from_marker (selection->markers.front(), is_start);
4702                         if (loc) {
4703                                 if (is_start) {
4704                                         where =  loc->start();
4705                                 } else {
4706                                         where = loc->end();
4707                                 }
4708                                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use selected marker @ %1\n", where));
4709                                 break;
4710                         }
4711                 }
4712                 /* fallthru */
4713
4714         default:
4715         case EditAtMouse:
4716                 if (!mouse_frame (where, ignored)) {
4717                         /* XXX not right but what can we do ? */
4718                         return 0;
4719                 }
4720                 snap_to (where);
4721                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use mouse @ %1\n", where));
4722                 break;
4723         }
4724
4725         return where;
4726 }
4727
4728 void
4729 Editor::set_loop_range (framepos_t start, framepos_t end, string cmd)
4730 {
4731         if (!_session) return;
4732
4733         begin_reversible_command (cmd);
4734
4735         Location* tll;
4736
4737         if ((tll = transport_loop_location()) == 0) {
4738                 Location* loc = new Location (*_session, start, end, _("Loop"),  Location::IsAutoLoop);
4739                 XMLNode &before = _session->locations()->get_state();
4740                 _session->locations()->add (loc, true);
4741                 _session->set_auto_loop_location (loc);
4742                 XMLNode &after = _session->locations()->get_state();
4743                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4744         } else {
4745                 XMLNode &before = tll->get_state();
4746                 tll->set_hidden (false, this);
4747                 tll->set (start, end);
4748                 XMLNode &after = tll->get_state();
4749                 _session->add_command (new MementoCommand<Location>(*tll, &before, &after));
4750         }
4751
4752         commit_reversible_command ();
4753 }
4754
4755 void
4756 Editor::set_punch_range (framepos_t start, framepos_t end, string cmd)
4757 {
4758         if (!_session) return;
4759
4760         begin_reversible_command (cmd);
4761
4762         Location* tpl;
4763
4764         if ((tpl = transport_punch_location()) == 0) {
4765                 Location* loc = new Location (*_session, start, end, _("Punch"),  Location::IsAutoPunch);
4766                 XMLNode &before = _session->locations()->get_state();
4767                 _session->locations()->add (loc, true);
4768                 _session->set_auto_punch_location (loc);
4769                 XMLNode &after = _session->locations()->get_state();
4770                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4771         } else {
4772                 XMLNode &before = tpl->get_state();
4773                 tpl->set_hidden (false, this);
4774                 tpl->set (start, end);
4775                 XMLNode &after = tpl->get_state();
4776                 _session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
4777         }
4778
4779         commit_reversible_command ();
4780 }
4781
4782 /** Find regions which exist at a given time, and optionally on a given list of tracks.
4783  *  @param rs List to which found regions are added.
4784  *  @param where Time to look at.
4785  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
4786  */
4787 void
4788 Editor::get_regions_at (RegionSelection& rs, framepos_t where, const TrackViewList& ts) const
4789 {
4790         const TrackViewList* tracks;
4791
4792         if (ts.empty()) {
4793                 tracks = &track_views;
4794         } else {
4795                 tracks = &ts;
4796         }
4797
4798         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4799
4800                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4801
4802                 if (rtv) {
4803                         boost::shared_ptr<Track> tr;
4804                         boost::shared_ptr<Playlist> pl;
4805
4806                         if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
4807
4808                                 boost::shared_ptr<RegionList> regions = pl->regions_at (
4809                                                 (framepos_t) floor ( (double) where * tr->speed()));
4810
4811                                 for (RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4812                                         RegionView* rv = rtv->view()->find_view (*i);
4813                                         if (rv) {
4814                                                 rs.add (rv);
4815                                         }
4816                                 }
4817                         }
4818                 }
4819         }
4820 }
4821
4822 void
4823 Editor::get_regions_after (RegionSelection& rs, framepos_t where, const TrackViewList& ts) const
4824 {
4825         const TrackViewList* tracks;
4826
4827         if (ts.empty()) {
4828                 tracks = &track_views;
4829         } else {
4830                 tracks = &ts;
4831         }
4832
4833         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4834                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4835                 if (rtv) {
4836                         boost::shared_ptr<Track> tr;
4837                         boost::shared_ptr<Playlist> pl;
4838
4839                         if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
4840
4841                                 boost::shared_ptr<RegionList> regions = pl->regions_touched (
4842                                         (framepos_t) floor ( (double)where * tr->speed()), max_framepos);
4843
4844                                 for (RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4845
4846                                         RegionView* rv = rtv->view()->find_view (*i);
4847
4848                                         if (rv) {
4849                                                 rs.add (rv);
4850                                         }
4851                                 }
4852                         }
4853                 }
4854         }
4855 }
4856
4857 /** Get regions using the following method:
4858  *
4859  *  Make a region list using:
4860  *   (a) any selected regions
4861  *   (b) the intersection of any selected tracks and the edit point(*)
4862  *   (c) if neither exists, and edit_point == mouse, then whatever region is under the mouse
4863  *
4864  *  (*) NOTE: in this case, if 'No Selection = All Tracks' is active, search all tracks
4865  *
4866  *  Note that we have forced the rule that selected regions and selected tracks are mutually exclusive
4867  */
4868
4869 RegionSelection
4870 Editor::get_regions_from_selection_and_edit_point ()
4871 {
4872         RegionSelection regions;
4873
4874         if (_edit_point == EditAtMouse && entered_regionview && selection->tracks.empty() && selection->regions.empty() ) {
4875                 regions.add (entered_regionview);
4876         } else {
4877                 regions = selection->regions;
4878         }
4879
4880         if ( regions.empty() ) {
4881                 TrackViewList tracks = selection->tracks;
4882
4883                 if (!tracks.empty()) {
4884                         /* no region selected or entered, but some selected tracks:
4885                          * act on all regions on the selected tracks at the edit point
4886                          */
4887                         framepos_t const where = get_preferred_edit_position ();
4888                         get_regions_at(regions, where, tracks);
4889                 }
4890         }
4891
4892         return regions;
4893 }
4894
4895 /** Get regions using the following method:
4896  *
4897  *  Make a region list using:
4898  *   (a) any selected regions
4899  *   (b) the intersection of any selected tracks and the edit point(*)
4900  *   (c) if neither exists, then whatever region is under the mouse
4901  *
4902  *  (*) NOTE: in this case, if 'No Selection = All Tracks' is active, search all tracks
4903  *
4904  *  Note that we have forced the rule that selected regions and selected tracks are mutually exclusive
4905  */
4906 RegionSelection
4907 Editor::get_regions_from_selection_and_mouse (framepos_t pos)
4908 {
4909         RegionSelection regions;
4910
4911         if (entered_regionview && selection->tracks.empty() && selection->regions.empty() ) {
4912                 regions.add (entered_regionview);
4913         } else {
4914                 regions = selection->regions;
4915         }
4916
4917         if ( regions.empty() ) {
4918                 TrackViewList tracks = selection->tracks;
4919
4920                 if (!tracks.empty()) {
4921                         /* no region selected or entered, but some selected tracks:
4922                          * act on all regions on the selected tracks at the edit point
4923                          */
4924                         get_regions_at(regions, pos, tracks);
4925                 }
4926         }
4927
4928         return regions;
4929 }
4930
4931 /** Start with regions that are selected, or the entered regionview if none are selected.
4932  *  Then add equivalent regions on tracks in the same active edit-enabled route group as any
4933  *  of the regions that we started with.
4934  */
4935
4936 RegionSelection
4937 Editor::get_regions_from_selection_and_entered () const
4938 {
4939         RegionSelection regions = selection->regions;
4940
4941         if (regions.empty() && entered_regionview) {
4942                 regions.add (entered_regionview);
4943         }
4944
4945         return regions;
4946 }
4947
4948 void
4949 Editor::get_regionviews_by_id (PBD::ID const id, RegionSelection & regions) const
4950 {
4951         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
4952                 RouteTimeAxisView* rtav;
4953
4954                 if ((rtav = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4955                         boost::shared_ptr<Playlist> pl;
4956                         std::vector<boost::shared_ptr<Region> > results;
4957                         boost::shared_ptr<Track> tr;
4958
4959                         if ((tr = rtav->track()) == 0) {
4960                                 /* bus */
4961                                 continue;
4962                         }
4963
4964                         if ((pl = (tr->playlist())) != 0) {
4965                                 boost::shared_ptr<Region> r = pl->region_by_id (id);
4966                                 if (r) {
4967                                         RegionView* rv = rtav->view()->find_view (r);
4968                                         if (rv) {
4969                                                 regions.push_back (rv);
4970                                         }
4971                                 }
4972                         }
4973                 }
4974         }
4975 }
4976
4977 void
4978 Editor::get_per_region_note_selection (list<pair<PBD::ID, set<boost::shared_ptr<Evoral::Note<Evoral::Beats> > > > > &selection) const
4979 {
4980
4981         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
4982                 MidiTimeAxisView* mtav;
4983
4984                 if ((mtav = dynamic_cast<MidiTimeAxisView*> (*i)) != 0) {
4985
4986                         mtav->get_per_region_note_selection (selection);
4987                 }
4988         }
4989
4990 }
4991
4992 void
4993 Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions, bool src_comparison)
4994 {
4995         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4996
4997                 RouteTimeAxisView* tatv;
4998
4999                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
5000
5001                         boost::shared_ptr<Playlist> pl;
5002                         vector<boost::shared_ptr<Region> > results;
5003                         RegionView* marv;
5004                         boost::shared_ptr<Track> tr;
5005
5006                         if ((tr = tatv->track()) == 0) {
5007                                 /* bus */
5008                                 continue;
5009                         }
5010
5011                         if ((pl = (tr->playlist())) != 0) {
5012                                 if (src_comparison) {
5013                                         pl->get_source_equivalent_regions (region, results);
5014                                 } else {
5015                                         pl->get_region_list_equivalent_regions (region, results);
5016                                 }
5017                         }
5018
5019                         for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
5020                                 if ((marv = tatv->view()->find_view (*ir)) != 0) {
5021                                         regions.push_back (marv);
5022                                 }
5023                         }
5024
5025                 }
5026         }
5027 }
5028
5029 void
5030 Editor::show_rhythm_ferret ()
5031 {
5032         if (rhythm_ferret == 0) {
5033                 rhythm_ferret = new RhythmFerret(*this);
5034         }
5035
5036         rhythm_ferret->set_session (_session);
5037         rhythm_ferret->show ();
5038         rhythm_ferret->present ();
5039 }
5040
5041 void
5042 Editor::first_idle ()
5043 {
5044         MessageDialog* dialog = 0;
5045
5046         if (track_views.size() > 1) {
5047                 Timers::TimerSuspender t;
5048                 dialog = new MessageDialog (
5049                         string_compose (_("Please wait while %1 loads visual data."), PROGRAM_NAME),
5050                         true
5051                         );
5052                 dialog->present ();
5053                 ARDOUR_UI::instance()->flush_pending (60);
5054         }
5055
5056         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
5057                 (*t)->first_idle();
5058         }
5059
5060         // first idle adds route children (automation tracks), so we need to redisplay here
5061         _routes->redisplay ();
5062
5063         delete dialog;
5064
5065         if (_session->undo_depth() == 0) {
5066                 undo_action->set_sensitive(false);
5067         }
5068         redo_action->set_sensitive(false);
5069         begin_selection_op_history ();
5070
5071         _have_idled = true;
5072 }
5073
5074 gboolean
5075 Editor::_idle_resize (gpointer arg)
5076 {
5077         return ((Editor*)arg)->idle_resize ();
5078 }
5079
5080 void
5081 Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
5082 {
5083         if (resize_idle_id < 0) {
5084                 /* https://developer.gnome.org/glib/stable/glib-The-Main-Event-Loop.html#G-PRIORITY-HIGH-IDLE:CAPS
5085                  * GTK+ uses G_PRIORITY_HIGH_IDLE + 10 for resizing operations, and G_PRIORITY_HIGH_IDLE + 20 for redrawing operations.
5086                  * (This is done to ensure that any pending resizes are processed before any pending redraws, so that widgets are not redrawn twice unnecessarily.)
5087                  */
5088                 resize_idle_id = g_idle_add_full (G_PRIORITY_HIGH_IDLE + 10, _idle_resize, this, NULL);
5089                 _pending_resize_amount = 0;
5090         }
5091
5092         /* make a note of the smallest resulting height, so that we can clamp the
5093            lower limit at TimeAxisView::hSmall */
5094
5095         int32_t min_resulting = INT32_MAX;
5096
5097         _pending_resize_amount += h;
5098         _pending_resize_view = view;
5099
5100         min_resulting = min (min_resulting, int32_t (_pending_resize_view->current_height()) + _pending_resize_amount);
5101
5102         if (selection->tracks.contains (_pending_resize_view)) {
5103                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5104                         min_resulting = min (min_resulting, int32_t ((*i)->current_height()) + _pending_resize_amount);
5105                 }
5106         }
5107
5108         if (min_resulting < 0) {
5109                 min_resulting = 0;
5110         }
5111
5112         /* clamp */
5113         if (uint32_t (min_resulting) < TimeAxisView::preset_height (HeightSmall)) {
5114                 _pending_resize_amount += TimeAxisView::preset_height (HeightSmall) - min_resulting;
5115         }
5116 }
5117
5118 /** Handle pending resizing of tracks */
5119 bool
5120 Editor::idle_resize ()
5121 {
5122         _pending_resize_view->idle_resize (_pending_resize_view->current_height() + _pending_resize_amount);
5123
5124         if (dynamic_cast<AutomationTimeAxisView*> (_pending_resize_view) == 0 &&
5125             selection->tracks.contains (_pending_resize_view)) {
5126
5127                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5128                         if (*i != _pending_resize_view) {
5129                                 (*i)->idle_resize ((*i)->current_height() + _pending_resize_amount);
5130                         }
5131                 }
5132         }
5133
5134         _pending_resize_amount = 0;
5135         _group_tabs->set_dirty ();
5136         resize_idle_id = -1;
5137
5138         return false;
5139 }
5140
5141 void
5142 Editor::located ()
5143 {
5144         ENSURE_GUI_THREAD (*this, &Editor::located);
5145
5146         if (_session) {
5147                 playhead_cursor->set_position (_session->audible_frame ());
5148                 if (_follow_playhead && !_pending_initial_locate) {
5149                         reset_x_origin_to_follow_playhead ();
5150                 }
5151         }
5152
5153         _pending_locate_request = false;
5154         _pending_initial_locate = false;
5155 }
5156
5157 void
5158 Editor::region_view_added (RegionView * rv)
5159 {
5160         for (list<PBD::ID>::iterator pr = selection->regions.pending.begin (); pr != selection->regions.pending.end (); ++pr) {
5161                 if (rv->region ()->id () == (*pr)) {
5162                         selection->add (rv);
5163                         selection->regions.pending.erase (pr);
5164                         break;
5165                 }
5166         }
5167
5168         MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rv);
5169         if (mrv) {
5170                 list<pair<PBD::ID const, list<boost::shared_ptr<Evoral::Note<Evoral::Beats> > > > >::iterator rnote;
5171                 for (rnote = selection->pending_midi_note_selection.begin(); rnote != selection->pending_midi_note_selection.end(); ++rnote) {
5172                         if (rv->region()->id () == (*rnote).first) {
5173                                 mrv->select_notes ((*rnote).second);
5174                                 selection->pending_midi_note_selection.erase(rnote);
5175                                 break;
5176                         }
5177                 }
5178         }
5179
5180         _summary->set_background_dirty ();
5181 }
5182
5183 void
5184 Editor::region_view_removed ()
5185 {
5186         _summary->set_background_dirty ();
5187 }
5188
5189 TimeAxisView*
5190 Editor::axis_view_from_stripable (boost::shared_ptr<Stripable> s) const
5191 {
5192         for (TrackViewList::const_iterator j = track_views.begin (); j != track_views.end(); ++j) {
5193                 if ((*j)->stripable() == s) {
5194                         return *j;
5195                 }
5196         }
5197
5198         return 0;
5199 }
5200
5201
5202 TrackViewList
5203 Editor::axis_views_from_routes (boost::shared_ptr<RouteList> r) const
5204 {
5205         TrackViewList t;
5206
5207         for (RouteList::const_iterator i = r->begin(); i != r->end(); ++i) {
5208                 TimeAxisView* tv = axis_view_from_stripable (*i);
5209                 if (tv) {
5210                         t.push_back (tv);
5211                 }
5212         }
5213
5214         return t;
5215 }
5216
5217 void
5218 Editor::suspend_route_redisplay ()
5219 {
5220         if (_routes) {
5221                 _routes->suspend_redisplay();
5222         }
5223 }
5224
5225 void
5226 Editor::resume_route_redisplay ()
5227 {
5228         if (_routes) {
5229                 _routes->redisplay(); // queue redisplay
5230                 _routes->resume_redisplay();
5231         }
5232 }
5233
5234 void
5235 Editor::add_vcas (VCAList& vlist)
5236 {
5237         StripableList sl;
5238
5239         for (VCAList::iterator v = vlist.begin(); v != vlist.end(); ++v) {
5240                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
5241         }
5242
5243         add_stripables (sl);
5244 }
5245
5246 void
5247 Editor::add_routes (RouteList& rlist)
5248 {
5249         StripableList sl;
5250
5251         for (RouteList::iterator r = rlist.begin(); r != rlist.end(); ++r) {
5252                 sl.push_back (*r);
5253         }
5254
5255         add_stripables (sl);
5256 }
5257
5258 void
5259 Editor::add_stripables (StripableList& sl)
5260 {
5261         list<TimeAxisView*> new_views;
5262         boost::shared_ptr<VCA> v;
5263         boost::shared_ptr<Route> r;
5264         TrackViewList new_selection;
5265         bool from_scratch = (track_views.size() == 0);
5266
5267         sl.sort (StripablePresentationInfoSorter());
5268
5269         for (StripableList::iterator s = sl.begin(); s != sl.end(); ++s) {
5270
5271                 if ((v = boost::dynamic_pointer_cast<VCA> (*s)) != 0) {
5272
5273                         VCATimeAxisView* vtv = new VCATimeAxisView (*this, _session, *_track_canvas);
5274                         vtv->set_vca (v);
5275                         new_views.push_back (vtv);
5276
5277                 } else if ((r = boost::dynamic_pointer_cast<Route> (*s)) != 0) {
5278
5279                         if (r->is_auditioner() || r->is_monitor()) {
5280                                 continue;
5281                         }
5282
5283                         RouteTimeAxisView* rtv;
5284                         DataType dt = r->input()->default_type();
5285
5286                         if (dt == ARDOUR::DataType::AUDIO) {
5287                                 rtv = new AudioTimeAxisView (*this, _session, *_track_canvas);
5288                                 rtv->set_route (r);
5289                         } else if (dt == ARDOUR::DataType::MIDI) {
5290                                 rtv = new MidiTimeAxisView (*this, _session, *_track_canvas);
5291                                 rtv->set_route (r);
5292                         } else {
5293                                 throw unknown_type();
5294                         }
5295
5296                         new_views.push_back (rtv);
5297                         track_views.push_back (rtv);
5298                         new_selection.push_back (rtv);
5299
5300                         rtv->effective_gain_display ();
5301
5302                         rtv->view()->RegionViewAdded.connect (sigc::mem_fun (*this, &Editor::region_view_added));
5303                         rtv->view()->RegionViewRemoved.connect (sigc::mem_fun (*this, &Editor::region_view_removed));
5304                 }
5305         }
5306
5307         if (new_views.size() > 0) {
5308                 _routes->time_axis_views_added (new_views);
5309                 //_summary->routes_added (new_selection); /* XXX requires RouteTimeAxisViewList */
5310         }
5311
5312         /* note: !new_selection.empty() means that we got some routes rather
5313          * than just VCAs
5314          */
5315
5316         if (!from_scratch && !new_selection.empty()) {
5317                 selection->tracks.clear();
5318                 selection->add (new_selection);
5319                 begin_selection_op_history();
5320         }
5321
5322         if (show_editor_mixer_when_tracks_arrive && !new_selection.empty()) {
5323                 show_editor_mixer (true);
5324         }
5325
5326         editor_list_button.set_sensitive (true);
5327 }
5328
5329 void
5330 Editor::timeaxisview_deleted (TimeAxisView *tv)
5331 {
5332         if (tv == entered_track) {
5333                 entered_track = 0;
5334         }
5335
5336         if (_session && _session->deletion_in_progress()) {
5337                 /* the situation is under control */
5338                 return;
5339         }
5340
5341         ENSURE_GUI_THREAD (*this, &Editor::timeaxisview_deleted, tv);
5342
5343         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (tv);
5344
5345         _routes->route_removed (tv);
5346
5347         TimeAxisView::Children c = tv->get_child_list ();
5348         for (TimeAxisView::Children::const_iterator i = c.begin(); i != c.end(); ++i) {
5349                 if (entered_track == i->get()) {
5350                         entered_track = 0;
5351                 }
5352         }
5353
5354         /* remove it from the list of track views */
5355
5356         TrackViewList::iterator i;
5357
5358         if ((i = find (track_views.begin(), track_views.end(), tv)) != track_views.end()) {
5359                 i = track_views.erase (i);
5360         }
5361
5362         /* update whatever the current mixer strip is displaying, if revelant */
5363
5364         boost::shared_ptr<Route> route;
5365
5366         if (rtav) {
5367                 route = rtav->route ();
5368         }
5369
5370         if (current_mixer_strip && current_mixer_strip->route() == route) {
5371
5372                 TimeAxisView* next_tv;
5373
5374                 if (track_views.empty()) {
5375                         next_tv = 0;
5376                 } else if (i == track_views.end()) {
5377                         next_tv = track_views.front();
5378                 } else {
5379                         next_tv = (*i);
5380                 }
5381
5382
5383                 if (next_tv) {
5384                         set_selected_mixer_strip (*next_tv);
5385                 } else {
5386                         /* make the editor mixer strip go away setting the
5387                          * button to inactive (which also unticks the menu option)
5388                          */
5389
5390                         ActionManager::uncheck_toggleaction ("<Actions>/Editor/show-editor-mixer");
5391                 }
5392         }
5393 }
5394
5395 void
5396 Editor::hide_track_in_display (TimeAxisView* tv, bool apply_to_selection)
5397 {
5398         if (apply_to_selection) {
5399                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ) {
5400
5401                         TrackSelection::iterator j = i;
5402                         ++j;
5403
5404                         hide_track_in_display (*i, false);
5405
5406                         i = j;
5407                 }
5408         } else {
5409                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (tv);
5410
5411                 if (rtv && current_mixer_strip && (rtv->route() == current_mixer_strip->route())) {
5412                         // this will hide the mixer strip
5413                         set_selected_mixer_strip (*tv);
5414                 }
5415
5416                 _routes->hide_track_in_display (*tv);
5417         }
5418 }
5419
5420 bool
5421 Editor::sync_track_view_list_and_routes ()
5422 {
5423         track_views = TrackViewList (_routes->views ());
5424
5425         _summary->set_background_dirty();
5426         _group_tabs->set_dirty ();
5427
5428         return false; // do not call again (until needed)
5429 }
5430
5431 void
5432 Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
5433 {
5434         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5435                 theslot (**i);
5436         }
5437 }
5438
5439 /** Find a RouteTimeAxisView by the ID of its route */
5440 RouteTimeAxisView*
5441 Editor::get_route_view_by_route_id (const PBD::ID& id) const
5442 {
5443         RouteTimeAxisView* v;
5444
5445         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
5446                 if((v = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5447                         if(v->route()->id() == id) {
5448                                 return v;
5449                         }
5450                 }
5451         }
5452
5453         return 0;
5454 }
5455
5456 void
5457 Editor::fit_route_group (RouteGroup *g)
5458 {
5459         TrackViewList ts = axis_views_from_routes (g->route_list ());
5460         fit_tracks (ts);
5461 }
5462
5463 void
5464 Editor::consider_auditioning (boost::shared_ptr<Region> region)
5465 {
5466         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
5467
5468         if (r == 0) {
5469                 _session->cancel_audition ();
5470                 return;
5471         }
5472
5473         if (_session->is_auditioning()) {
5474                 _session->cancel_audition ();
5475                 if (r == last_audition_region) {
5476                         return;
5477                 }
5478         }
5479
5480         _session->audition_region (r);
5481         last_audition_region = r;
5482 }
5483
5484
5485 void
5486 Editor::hide_a_region (boost::shared_ptr<Region> r)
5487 {
5488         r->set_hidden (true);
5489 }
5490
5491 void
5492 Editor::show_a_region (boost::shared_ptr<Region> r)
5493 {
5494         r->set_hidden (false);
5495 }
5496
5497 void
5498 Editor::audition_region_from_region_list ()
5499 {
5500         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::consider_auditioning));
5501 }
5502
5503 void
5504 Editor::hide_region_from_region_list ()
5505 {
5506         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::hide_a_region));
5507 }
5508
5509 void
5510 Editor::show_region_in_region_list ()
5511 {
5512         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::show_a_region));
5513 }
5514
5515 void
5516 Editor::step_edit_status_change (bool yn)
5517 {
5518         if (yn) {
5519                 start_step_editing ();
5520         } else {
5521                 stop_step_editing ();
5522         }
5523 }
5524
5525 void
5526 Editor::start_step_editing ()
5527 {
5528         step_edit_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::check_step_edit), 20);
5529 }
5530
5531 void
5532 Editor::stop_step_editing ()
5533 {
5534         step_edit_connection.disconnect ();
5535 }
5536
5537 bool
5538 Editor::check_step_edit ()
5539 {
5540         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5541                 MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (*i);
5542                 if (mtv) {
5543                         mtv->check_step_edit ();
5544                 }
5545         }
5546
5547         return true; // do it again, till we stop
5548 }
5549
5550 bool
5551 Editor::scroll_press (Direction dir)
5552 {
5553         ++_scroll_callbacks;
5554
5555         if (_scroll_connection.connected() && _scroll_callbacks < 5) {
5556                 /* delay the first auto-repeat */
5557                 return true;
5558         }
5559
5560         switch (dir) {
5561         case LEFT:
5562                 scroll_backward (1);
5563                 break;
5564
5565         case RIGHT:
5566                 scroll_forward (1);
5567                 break;
5568
5569         case UP:
5570                 scroll_up_one_track ();
5571                 break;
5572
5573         case DOWN:
5574                 scroll_down_one_track ();
5575                 break;
5576         }
5577
5578         /* do hacky auto-repeat */
5579         if (!_scroll_connection.connected ()) {
5580
5581                 _scroll_connection = Glib::signal_timeout().connect (
5582                         sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), dir), 100
5583                         );
5584
5585                 _scroll_callbacks = 0;
5586         }
5587
5588         return true;
5589 }
5590
5591 void
5592 Editor::scroll_release ()
5593 {
5594         _scroll_connection.disconnect ();
5595 }
5596
5597 /** Queue a change for the Editor viewport x origin to follow the playhead */
5598 void
5599 Editor::reset_x_origin_to_follow_playhead ()
5600 {
5601         framepos_t const frame = playhead_cursor->current_frame ();
5602
5603         if (frame < leftmost_frame || frame > leftmost_frame + current_page_samples()) {
5604
5605                 if (_session->transport_speed() < 0) {
5606
5607                         if (frame > (current_page_samples() / 2)) {
5608                                 center_screen (frame-(current_page_samples()/2));
5609                         } else {
5610                                 center_screen (current_page_samples()/2);
5611                         }
5612
5613                 } else {
5614
5615                         framepos_t l = 0;
5616
5617                         if (frame < leftmost_frame) {
5618                                 /* moving left */
5619                                 if (_session->transport_rolling()) {
5620                                         /* rolling; end up with the playhead at the right of the page */
5621                                         l = frame - current_page_samples ();
5622                                 } else {
5623                                         /* not rolling: end up with the playhead 1/4 of the way along the page */
5624                                         l = frame - current_page_samples() / 4;
5625                                 }
5626                         } else {
5627                                 /* moving right */
5628                                 if (_session->transport_rolling()) {
5629                                         /* rolling: end up with the playhead on the left of the page */
5630                                         l = frame;
5631                                 } else {
5632                                         /* not rolling: end up with the playhead 3/4 of the way along the page */
5633                                         l = frame - 3 * current_page_samples() / 4;
5634                                 }
5635                         }
5636
5637                         if (l < 0) {
5638                                 l = 0;
5639                         }
5640
5641                         center_screen_internal (l + (current_page_samples() / 2), current_page_samples ());
5642                 }
5643         }
5644 }
5645
5646 void
5647 Editor::super_rapid_screen_update ()
5648 {
5649         if (!_session || !_session->engine().running()) {
5650                 return;
5651         }
5652
5653         /* METERING / MIXER STRIPS */
5654
5655         /* update track meters, if required */
5656         if (contents().is_mapped() && meters_running) {
5657                 RouteTimeAxisView* rtv;
5658                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5659                         if ((rtv = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5660                                 rtv->fast_update ();
5661                         }
5662                 }
5663         }
5664
5665         /* and any current mixer strip */
5666         if (current_mixer_strip) {
5667                 current_mixer_strip->fast_update ();
5668         }
5669
5670         /* PLAYHEAD AND VIEWPORT */
5671
5672         framepos_t const frame = _session->audible_frame();
5673
5674         /* There are a few reasons why we might not update the playhead / viewport stuff:
5675          *
5676          * 1.  we don't update things when there's a pending locate request, otherwise
5677          *     when the editor requests a locate there is a chance that this method
5678          *     will move the playhead before the locate request is processed, causing
5679          *     a visual glitch.
5680          * 2.  if we're not rolling, there's nothing to do here (locates are handled elsewhere).
5681          * 3.  if we're still at the same frame that we were last time, there's nothing to do.
5682          */
5683
5684         if (!_pending_locate_request && _session->transport_speed() != 0 && frame != last_update_frame) {
5685
5686                 last_update_frame = frame;
5687
5688                 if (!_dragging_playhead) {
5689                         playhead_cursor->set_position (frame);
5690                 }
5691
5692                 if (!_stationary_playhead) {
5693
5694                         if (!_dragging_playhead && _follow_playhead && _session->requested_return_frame() < 0 && !pending_visual_change.being_handled) {
5695                                 /* We only do this if we aren't already
5696                                    handling a visual change (ie if
5697                                    pending_visual_change.being_handled is
5698                                    false) so that these requests don't stack
5699                                    up there are too many of them to handle in
5700                                    time.
5701                                 */
5702                                 reset_x_origin_to_follow_playhead ();
5703                         }
5704
5705                 } else {
5706
5707                         if (!_dragging_playhead && _follow_playhead && _session->requested_return_frame() < 0 && !pending_visual_change.being_handled) {
5708                                 framepos_t const frame = playhead_cursor->current_frame ();
5709                                 double target = ((double)frame - (double)current_page_samples()/2.0);
5710                                 if (target <= 0.0) {
5711                                         target = 0.0;
5712                                 }
5713                                 // compare to EditorCursor::set_position()
5714                                 double const old_pos = sample_to_pixel_unrounded (leftmost_frame);
5715                                 double const new_pos = sample_to_pixel_unrounded (target);
5716                                 if (rint (new_pos) != rint (old_pos)) {
5717                                         reset_x_origin (pixel_to_sample (floor (new_pos)));
5718                                 }
5719                         }
5720
5721                 }
5722
5723         }
5724 }
5725
5726
5727 void
5728 Editor::session_going_away ()
5729 {
5730         _have_idled = false;
5731
5732         _session_connections.drop_connections ();
5733
5734         super_rapid_screen_update_connection.disconnect ();
5735
5736         selection->clear ();
5737         cut_buffer->clear ();
5738
5739         clicked_regionview = 0;
5740         clicked_axisview = 0;
5741         clicked_routeview = 0;
5742         entered_regionview = 0;
5743         entered_track = 0;
5744         last_update_frame = 0;
5745         _drags->abort ();
5746
5747         playhead_cursor->hide ();
5748
5749         /* rip everything out of the list displays */
5750
5751         _regions->clear ();
5752         _routes->clear ();
5753         _route_groups->clear ();
5754
5755         /* do this first so that deleting a track doesn't reset cms to null
5756            and thus cause a leak.
5757         */
5758
5759         if (current_mixer_strip) {
5760                 if (current_mixer_strip->get_parent() != 0) {
5761                         global_hpacker.remove (*current_mixer_strip);
5762                 }
5763                 delete current_mixer_strip;
5764                 current_mixer_strip = 0;
5765         }
5766
5767         /* delete all trackviews */
5768
5769         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5770                 delete *i;
5771         }
5772         track_views.clear ();
5773
5774         nudge_clock->set_session (0);
5775
5776         editor_list_button.set_active(false);
5777         editor_list_button.set_sensitive(false);
5778
5779         /* clear tempo/meter rulers */
5780         remove_metric_marks ();
5781         hide_measures ();
5782         clear_marker_display ();
5783
5784         stop_step_editing ();
5785
5786         if (own_window()) {
5787
5788                 /* get rid of any existing editor mixer strip */
5789
5790                 WindowTitle title(Glib::get_application_name());
5791                 title += _("Editor");
5792
5793                 own_window()->set_title (title.get_string());
5794         }
5795
5796         SessionHandlePtr::session_going_away ();
5797 }
5798
5799 void
5800 Editor::trigger_script (int i)
5801 {
5802         LuaInstance::instance()-> call_action (i);
5803 }
5804
5805 void
5806 Editor::set_script_action_name (int i, const std::string& n)
5807 {
5808         string const a = string_compose (X_("script-action-%1"), i + 1);
5809         Glib::RefPtr<Action> act = ActionManager::get_action(X_("Editor"), a.c_str());
5810         assert (act);
5811         if (n.empty ()) {
5812                 act->set_label (string_compose (_("Unset #%1"), i + 1));
5813                 act->set_tooltip (_("no action bound"));
5814                 act->set_sensitive (false);
5815         } else {
5816                 act->set_label (n);
5817                 act->set_tooltip (n);
5818                 act->set_sensitive (true);
5819         }
5820         KeyEditor::UpdateBindings ();
5821 }
5822
5823 void
5824 Editor::show_editor_list (bool yn)
5825 {
5826         if (yn) {
5827                 _the_notebook.show ();
5828         } else {
5829                 _the_notebook.hide ();
5830         }
5831 }
5832
5833 void
5834 Editor::change_region_layering_order (bool from_context_menu)
5835 {
5836         const framepos_t position = get_preferred_edit_position (EDIT_IGNORE_NONE, from_context_menu);
5837
5838         if (!clicked_routeview) {
5839                 if (layering_order_editor) {
5840                         layering_order_editor->hide ();
5841                 }
5842                 return;
5843         }
5844
5845         boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track> (clicked_routeview->route());
5846
5847         if (!track) {
5848                 return;
5849         }
5850
5851         boost::shared_ptr<Playlist> pl = track->playlist();
5852
5853         if (!pl) {
5854                 return;
5855         }
5856
5857         if (layering_order_editor == 0) {
5858                 layering_order_editor = new RegionLayeringOrderEditor (*this);
5859         }
5860
5861         layering_order_editor->set_context (clicked_routeview->name(), _session, clicked_routeview, pl, position);
5862         layering_order_editor->maybe_present ();
5863 }
5864
5865 void
5866 Editor::update_region_layering_order_editor ()
5867 {
5868         if (layering_order_editor && layering_order_editor->is_visible ()) {
5869                 change_region_layering_order (true);
5870         }
5871 }
5872
5873 void
5874 Editor::setup_fade_images ()
5875 {
5876         _fade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadein-linear")));
5877         _fade_in_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadein-symmetric")));
5878         _fade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadein-fast-cut")));
5879         _fade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadein-slow-cut")));
5880         _fade_in_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadein-constant-power")));
5881
5882         _fade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
5883         _fade_out_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-symmetric")));
5884         _fade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
5885         _fade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
5886         _fade_out_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-constant-power")));
5887
5888         _xfade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadein-linear")));
5889         _xfade_in_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadein-symmetric")));
5890         _xfade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadein-fast-cut")));
5891         _xfade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadein-slow-cut")));
5892         _xfade_in_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadein-constant-power")));
5893
5894         _xfade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
5895         _xfade_out_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-symmetric")));
5896         _xfade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
5897         _xfade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
5898         _xfade_out_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-constant-power")));
5899
5900 }
5901
5902 /** @return Gtk::manage()d menu item for a given action from `editor_actions' */
5903 Gtk::MenuItem&
5904 Editor::action_menu_item (std::string const & name)
5905 {
5906         Glib::RefPtr<Action> a = editor_actions->get_action (name);
5907         assert (a);
5908
5909         return *manage (a->create_menu_item ());
5910 }
5911
5912 void
5913 Editor::add_notebook_page (string const & name, Gtk::Widget& widget)
5914 {
5915         EventBox* b = manage (new EventBox);
5916         b->signal_button_press_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::notebook_tab_clicked), &widget));
5917         Label* l = manage (new Label (name));
5918         l->set_angle (-90);
5919         b->add (*l);
5920         b->show_all ();
5921         _the_notebook.append_page (widget, *b);
5922 }
5923
5924 bool
5925 Editor::notebook_tab_clicked (GdkEventButton* ev, Gtk::Widget* page)
5926 {
5927         if (ev->type == GDK_BUTTON_PRESS || ev->type == GDK_2BUTTON_PRESS) {
5928                 _the_notebook.set_current_page (_the_notebook.page_num (*page));
5929         }
5930
5931         if (ev->type == GDK_2BUTTON_PRESS) {
5932
5933                 /* double-click on a notebook tab shrinks or expands the notebook */
5934
5935                 if (_notebook_shrunk) {
5936                         if (pre_notebook_shrink_pane_width) {
5937                                 edit_pane.set_divider (0, *pre_notebook_shrink_pane_width);
5938                         }
5939                         _notebook_shrunk = false;
5940                 } else {
5941                         pre_notebook_shrink_pane_width = edit_pane.get_divider();
5942
5943                         /* this expands the LHS of the edit pane to cover the notebook
5944                            PAGE but leaves the tabs visible.
5945                          */
5946                         edit_pane.set_divider (0, edit_pane.get_divider() + page->get_width());
5947                         _notebook_shrunk = true;
5948                 }
5949         }
5950
5951         return true;
5952 }
5953
5954 void
5955 Editor::popup_control_point_context_menu (ArdourCanvas::Item* item, GdkEvent* event)
5956 {
5957         using namespace Menu_Helpers;
5958
5959         MenuList& items = _control_point_context_menu.items ();
5960         items.clear ();
5961
5962         items.push_back (MenuElem (_("Edit..."), sigc::bind (sigc::mem_fun (*this, &Editor::edit_control_point), item)));
5963         items.push_back (MenuElem (_("Delete"), sigc::bind (sigc::mem_fun (*this, &Editor::remove_control_point), item)));
5964         if (!can_remove_control_point (item)) {
5965                 items.back().set_sensitive (false);
5966         }
5967
5968         _control_point_context_menu.popup (event->button.button, event->button.time);
5969 }
5970
5971 void
5972 Editor::popup_note_context_menu (ArdourCanvas::Item* item, GdkEvent* event)
5973 {
5974         using namespace Menu_Helpers;
5975
5976         NoteBase* note = reinterpret_cast<NoteBase*>(item->get_data("notebase"));
5977         if (!note) {
5978                 return;
5979         }
5980
5981         /* We need to get the selection here and pass it to the operations, since
5982            popping up the menu will cause a region leave event which clears
5983            entered_regionview. */
5984
5985         MidiRegionView&       mrv = note->region_view();
5986         const RegionSelection rs  = get_regions_from_selection_and_entered ();
5987         const uint32_t sel_size = mrv.selection_size ();
5988
5989         MenuList& items = _note_context_menu.items();
5990         items.clear();
5991
5992         if (sel_size > 0) {
5993                 items.push_back(MenuElem(_("Delete"),
5994                                          sigc::mem_fun(mrv, &MidiRegionView::delete_selection)));
5995         }
5996
5997         items.push_back(MenuElem(_("Edit..."),
5998                                  sigc::bind(sigc::mem_fun(*this, &Editor::edit_notes), &mrv)));
5999         if (sel_size != 1) {
6000                 items.back().set_sensitive (false);
6001         }
6002
6003         items.push_back(MenuElem(_("Transpose..."),
6004                                  sigc::bind(sigc::mem_fun(*this, &Editor::transpose_regions), rs)));
6005
6006
6007         items.push_back(MenuElem(_("Legatize"),
6008                                  sigc::bind(sigc::mem_fun(*this, &Editor::legatize_regions), rs, false)));
6009         if (sel_size < 2) {
6010                 items.back().set_sensitive (false);
6011         }
6012
6013         items.push_back(MenuElem(_("Quantize..."),
6014                                  sigc::bind(sigc::mem_fun(*this, &Editor::quantize_regions), rs)));
6015
6016         items.push_back(MenuElem(_("Remove Overlap"),
6017                                  sigc::bind(sigc::mem_fun(*this, &Editor::legatize_regions), rs, true)));
6018         if (sel_size < 2) {
6019                 items.back().set_sensitive (false);
6020         }
6021
6022         items.push_back(MenuElem(_("Transform..."),
6023                                  sigc::bind(sigc::mem_fun(*this, &Editor::transform_regions), rs)));
6024
6025         _note_context_menu.popup (event->button.button, event->button.time);
6026 }
6027
6028 void
6029 Editor::zoom_vertical_modifier_released()
6030 {
6031         _stepping_axis_view = 0;
6032 }
6033
6034 void
6035 Editor::ui_parameter_changed (string parameter)
6036 {
6037         if (parameter == "icon-set") {
6038                 while (!_cursor_stack.empty()) {
6039                         _cursor_stack.pop_back();
6040                 }
6041                 _cursors->set_cursor_set (UIConfiguration::instance().get_icon_set());
6042                 _cursor_stack.push_back(_cursors->grabber);
6043                 edit_pane.set_drag_cursor (*_cursors->expand_left_right);
6044                 editor_summary_pane.set_drag_cursor (*_cursors->expand_up_down);
6045
6046         } else if (parameter == "draggable-playhead") {
6047                 if (_verbose_cursor) {
6048                         playhead_cursor->set_sensitive (UIConfiguration::instance().get_draggable_playhead());
6049                 }
6050         }
6051 }
6052
6053 Gtk::Window*
6054 Editor::use_own_window (bool and_fill_it)
6055 {
6056         bool new_window = !own_window();
6057
6058         Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
6059
6060         if (win && new_window) {
6061                 win->set_name ("EditorWindow");
6062
6063                 ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Editor"), this);
6064
6065                 // win->signal_realize().connect (*this, &Editor::on_realize);
6066                 win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
6067                 win->signal_event().connect (sigc::mem_fun (*this, &Editor::generic_event_handler));
6068                 win->set_data ("ardour-bindings", bindings);
6069
6070                 update_title ();
6071         }
6072
6073         DisplaySuspender ds;
6074         contents().show_all ();
6075
6076         /* XXX: this is a bit unfortunate; it would probably
6077            be nicer if we could just call show () above rather
6078            than needing the show_all ()
6079         */
6080
6081         /* re-hide stuff if necessary */
6082         editor_list_button_toggled ();
6083         parameter_changed ("show-summary");
6084         parameter_changed ("show-group-tabs");
6085         parameter_changed ("show-zoom-tools");
6086
6087         /* now reset all audio_time_axis heights, because widgets might need
6088            to be re-hidden
6089         */
6090
6091         TimeAxisView *tv;
6092
6093         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
6094                 tv = (static_cast<TimeAxisView*>(*i));
6095                 tv->reset_height ();
6096         }
6097
6098         if (current_mixer_strip) {
6099                 current_mixer_strip->hide_things ();
6100                 current_mixer_strip->parameter_changed ("mixer-element-visibility");
6101         }
6102
6103         return win;
6104 }