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/gtk_ui.h"
  61 #include "gtkmm2ext/keyboard.h"
  62 #include "gtkmm2ext/utils.h"
  63 #include "gtkmm2ext/window_title.h"
  64 #include "gtkmm2ext/cell_renderer_pixbuf_toggle.h"
  65
  66 #include "ardour/analysis_graph.h"
  67 #include "ardour/audio_track.h"
  68 #include "ardour/audioengine.h"
  69 #include "ardour/audioregion.h"
  70 #include "ardour/lmath.h"
  71 #include "ardour/location.h"
  72 #include "ardour/profile.h"
  73 #include "ardour/route.h"
  74 #include "ardour/route_group.h"
  75 #include "ardour/session_playlists.h"
  76 #include "ardour/tempo.h"
  77 #include "ardour/utils.h"
  78 #include "ardour/vca_manager.h"
  79 #include "ardour/vca.h"
  80
  81 #include "canvas/debug.h"
  82 #include "canvas/text.h"
  83
  84 #include "widgets/ardour_spacer.h"
  85 #include "widgets/eventboxext.h"
  86 #include "widgets/tooltips.h"
  87
  88 #include "control_protocol/control_protocol.h"
  89
  90 #include "actions.h"
  91 #include "analysis_window.h"
  92 #include "audio_clock.h"
  93 #include "audio_region_view.h"
  94 #include "audio_streamview.h"
  95 #include "audio_time_axis.h"
  96 #include "automation_time_axis.h"
  97 #include "bundle_manager.h"
  98 #include "crossfade_edit.h"
  99 #include "debug.h"
 100 #include "editing.h"
 101 #include "editing_convert.h"
 102 #include "editor.h"
 103 #include "editor_cursors.h"
 104 #include "editor_drag.h"
 105 #include "editor_group_tabs.h"
 106 #include "editor_locations.h"
 107 #include "editor_regions.h"
 108 #include "editor_route_groups.h"
 109 #include "editor_routes.h"
 110 #include "editor_snapshots.h"
 111 #include "editor_summary.h"
 112 #include "enums_convert.h"
 113 #include "export_report.h"
 114 #include "global_port_matrix.h"
 115 #include "gui_object.h"
 116 #include "gui_thread.h"
 117 #include "keyboard.h"
 118 #include "luainstance.h"
 119 #include "marker.h"
 120 #include "midi_region_view.h"
 121 #include "midi_time_axis.h"
 122 #include "mixer_strip.h"
 123 #include "mixer_ui.h"
 124 #include "mouse_cursors.h"
 125 #include "note_base.h"
 126 #include "playlist_selector.h"
 127 #include "public_editor.h"
 128 #include "quantize_dialog.h"
 129 #include "region_layering_order_editor.h"
 130 #include "rgb_macros.h"
 131 #include "rhythm_ferret.h"
 132 #include "route_sorter.h"
 133 #include "selection.h"
 134 #include "simple_progress_dialog.h"
 135 #include "sfdb_ui.h"
 136 #include "grid_lines.h"
 137 #include "time_axis_view.h"
 138 #include "time_info_box.h"
 139 #include "timers.h"
 140 #include "ui_config.h"
 141 #include "utils.h"
 142 #include "vca_time_axis.h"
 143 #include "verbose_cursor.h"
 144
 145 #include "pbd/i18n.h"
 146
 147 using namespace std;
 148 using namespace ARDOUR;
 149 using namespace ArdourWidgets;
 150 using namespace ARDOUR_UI_UTILS;
 151 using namespace PBD;
 152 using namespace Gtk;
 153 using namespace Glib;
 154 using namespace Gtkmm2ext;
 155 using namespace Editing;
 156
 157 using PBD::internationalize;
 158 using PBD::atoi;
 159 using Gtkmm2ext::Keyboard;
 160
 161 double Editor::timebar_height = 15.0;
 162
 163 static const gchar *_grid_type_strings[] = {
 164         N_("No Grid"),
 165         N_("Bar"),
 166         N_("1/4 Note"),
 167         N_("1/8 Note"),
 168         N_("1/16 Note"),
 169         N_("1/32 Note"),
 170         N_("1/64 Note"),
 171         N_("1/128 Note"),
 172         N_("1/3 (8th triplet)"), // or "1/12" ?
 173         N_("1/6 (16th triplet)"),
 174         N_("1/12 (32nd triplet)"),
 175         N_("1/24 (64th triplet)"),
 176         N_("1/5 (8th quintuplet)"),
 177         N_("1/10 (16th quintuplet)"),
 178         N_("1/20 (32nd quintuplet)"),
 179         N_("1/7 (8th septuplet)"),
 180         N_("1/14 (16th septuplet)"),
 181         N_("1/28 (32nd septuplet)"),
 182         N_("Smpte"),
 183         N_("MinSec"),
 184         N_("Samples"),
 185         0
 186 };
 187
 188 static const gchar *_edit_point_strings[] = {
 189         N_("Playhead"),
 190         N_("Marker"),
 191         N_("Mouse"),
 192         0
 193 };
 194
 195 static const gchar *_edit_mode_strings[] = {
 196         N_("Slide"),
 197         N_("Splice"),
 198         N_("Ripple"),
 199         N_("Lock"),
 200         0
 201 };
 202
 203 static const gchar *_zoom_focus_strings[] = {
 204         N_("Left"),
 205         N_("Right"),
 206         N_("Center"),
 207         N_("Playhead"),
 208         N_("Mouse"),
 209         N_("Edit point"),
 210         0
 211 };
 212
 213 #ifdef USE_RUBBERBAND
 214 static const gchar *_rb_opt_strings[] = {
 215         N_("Mushy"),
 216         N_("Smooth"),
 217         N_("Balanced multitimbral mixture"),
 218         N_("Unpitched percussion with stable notes"),
 219         N_("Crisp monophonic instrumental"),
 220         N_("Unpitched solo percussion"),
 221         N_("Resample without preserving pitch"),
 222         0
 223 };
 224 #endif
 225
 226 #define COMBO_TRIANGLE_WIDTH 25 // ArdourButton _diameter (11) + 2 * arrow-padding (2*2) + 2 * text-padding (2*5)
 227
 228 Editor::Editor ()
 229         : PublicEditor (global_hpacker)
 230         , editor_mixer_strip_width (Wide)
 231         , constructed (false)
 232         , _playlist_selector (0)
 233         , _time_info_box (0)
 234         , no_save_visual (false)
 235         , _leftmost_sample (0)
 236         , samples_per_pixel (2048)
 237         , zoom_focus (ZoomFocusPlayhead)
 238         , mouse_mode (MouseObject)
 239         , pre_internal_grid_type (GridTypeBeat)
 240         , pre_internal_snap_mode (SnapOff)
 241         , internal_grid_type (GridTypeBeat)
 242         , internal_snap_mode (SnapOff)
 243         , _join_object_range_state (JOIN_OBJECT_RANGE_NONE)
 244         , _notebook_shrunk (false)
 245         , location_marker_color (0)
 246         , location_range_color (0)
 247         , location_loop_color (0)
 248         , location_punch_color (0)
 249         , location_cd_marker_color (0)
 250         , entered_marker (0)
 251         , _show_marker_lines (false)
 252         , clicked_axisview (0)
 253         , clicked_routeview (0)
 254         , clicked_regionview (0)
 255         , clicked_selection (0)
 256         , clicked_control_point (0)
 257         , button_release_can_deselect (true)
 258         , _mouse_changed_selection (false)
 259         , region_edit_menu_split_item (0)
 260         , region_edit_menu_split_multichannel_item (0)
 261         , track_region_edit_playlist_menu (0)
 262         , track_edit_playlist_submenu (0)
 263         , track_selection_edit_playlist_submenu (0)
 264         , _popup_region_menu_item (0)
 265         , _track_canvas (0)
 266         , _track_canvas_viewport (0)
 267         , within_track_canvas (false)
 268         , _verbose_cursor (0)
 269         , tempo_group (0)
 270         , meter_group (0)
 271         , marker_group (0)
 272         , range_marker_group (0)
 273         , transport_marker_group (0)
 274         , cd_marker_group (0)
 275         , _time_markers_group (0)
 276         , hv_scroll_group (0)
 277         , h_scroll_group (0)
 278         , cursor_scroll_group (0)
 279         , no_scroll_group (0)
 280         , _trackview_group (0)
 281         , _drag_motion_group (0)
 282         , _canvas_drop_zone (0)
 283         , no_ruler_shown_update (false)
 284         ,  ruler_grabbed_widget (0)
 285         , ruler_dialog (0)
 286         , minsec_mark_interval (0)
 287         , minsec_mark_modulo (0)
 288         , minsec_nmarks (0)
 289         , timecode_ruler_scale (timecode_show_many_hours)
 290         , timecode_mark_modulo (0)
 291         , timecode_nmarks (0)
 292         , _samples_ruler_interval (0)
 293         , bbt_ruler_scale (bbt_show_many)
 294         , bbt_bars (0)
 295         , bbt_nmarks (0)
 296         , bbt_bar_helper_on (0)
 297         , bbt_accent_modulo (0)
 298         , timecode_ruler (0)
 299         , bbt_ruler (0)
 300         , samples_ruler (0)
 301         , minsec_ruler (0)
 302         , visible_timebars (0)
 303         , editor_ruler_menu (0)
 304         , tempo_bar (0)
 305         , meter_bar (0)
 306         , marker_bar (0)
 307         , range_marker_bar (0)
 308         , transport_marker_bar (0)
 309         , cd_marker_bar (0)
 310         , minsec_label (_("Mins:Secs"))
 311         , bbt_label (_("Bars:Beats"))
 312         , timecode_label (_("Timecode"))
 313         , samples_label (_("Samples"))
 314         , tempo_label (_("Tempo"))
 315         , meter_label (_("Meter"))
 316         , mark_label (_("Location Markers"))
 317         , range_mark_label (_("Range Markers"))
 318         , transport_mark_label (_("Loop/Punch Ranges"))
 319         , cd_mark_label (_("CD Markers"))
 320         , videotl_label (_("Video Timeline"))
 321         , videotl_group (0)
 322         , snapped_cursor (0)
 323         , playhead_cursor (0)
 324         , _region_boundary_cache_dirty (true)
 325         , edit_packer (4, 4, true)
 326         , vertical_adjustment (0.0, 0.0, 10.0, 400.0)
 327         , horizontal_adjustment (0.0, 0.0, 1e16)
 328         , unused_adjustment (0.0, 0.0, 10.0, 400.0)
 329         , controls_layout (unused_adjustment, vertical_adjustment)
 330         , _scroll_callbacks (0)
 331         , _visible_canvas_width (0)
 332         , _visible_canvas_height (0)
 333         , _full_canvas_height (0)
 334         , edit_controls_left_menu (0)
 335         , edit_controls_right_menu (0)
 336         , visual_change_queued(false)
 337         , _last_update_time (0)
 338         , _err_screen_engine (0)
 339         , cut_buffer_start (0)
 340         , cut_buffer_length (0)
 341         , button_bindings (0)
 342         , last_paste_pos (-1)
 343         , paste_count (0)
 344         , sfbrowser (0)
 345         , current_interthread_info (0)
 346         , analysis_window (0)
 347         , select_new_marker (false)
 348         , last_scrub_x (0)
 349         , scrubbing_direction (0)
 350         , scrub_reversals (0)
 351         , scrub_reverse_distance (0)
 352         , have_pending_keyboard_selection (false)
 353         , pending_keyboard_selection_start (0)
 354         , _grid_type (GridTypeBeat)
 355         , _snap_mode (SnapOff)
 356         , ignore_gui_changes (false)
 357         , _drags (new DragManager (this))
 358         , lock_dialog (0)
 359           /* , last_event_time { 0, 0 } */ /* this initialization style requires C++11 */
 360         , _dragging_playhead (false)
 361         , _dragging_edit_point (false)
 362         , _follow_playhead (true)
 363         , _stationary_playhead (false)
 364         , _maximised (false)
 365         , grid_lines (0)
 366         , global_rect_group (0)
 367         , time_line_group (0)
 368         , tempo_marker_menu (0)
 369         , meter_marker_menu (0)
 370         , marker_menu (0)
 371         , range_marker_menu (0)
 372         , transport_marker_menu (0)
 373         , new_transport_marker_menu (0)
 374         , cd_marker_menu (0)
 375         , marker_menu_item (0)
 376         , bbt_beat_subdivision (4)
 377         , _visible_track_count (-1)
 378         ,  toolbar_selection_clock_table (2,3)
 379         ,  automation_mode_button (_("mode"))
 380         , selection (new Selection (this, true))
 381         , cut_buffer (new Selection (this, false))
 382         , _selection_memento (new SelectionMemento())
 383         , _all_region_actions_sensitized (false)
 384         , _ignore_region_action (false)
 385         , _last_region_menu_was_main (false)
 386         , _track_selection_change_without_scroll (false)
 387         , _editor_track_selection_change_without_scroll (false)
 388         , cd_marker_bar_drag_rect (0)
 389         , range_bar_drag_rect (0)
 390         , transport_bar_drag_rect (0)
 391         , transport_bar_range_rect (0)
 392         , transport_bar_preroll_rect (0)
 393         , transport_bar_postroll_rect (0)
 394         , transport_loop_range_rect (0)
 395         , transport_punch_range_rect (0)
 396         , transport_punchin_line (0)
 397         , transport_punchout_line (0)
 398         , transport_preroll_rect (0)
 399         , transport_postroll_rect (0)
 400         , temp_location (0)
 401         , rubberband_rect (0)
 402         , _route_groups (0)
 403         , _routes (0)
 404         , _regions (0)
 405         , _snapshots (0)
 406         , _locations (0)
 407         , autoscroll_horizontal_allowed (false)
 408         , autoscroll_vertical_allowed (false)
 409         , autoscroll_cnt (0)
 410         , autoscroll_widget (0)
 411         , show_gain_after_trim (false)
 412         , selection_op_cmd_depth (0)
 413         , selection_op_history_it (0)
 414         , no_save_instant (false)
 415         , current_timefx (0)
 416         , current_mixer_strip (0)
 417         , show_editor_mixer_when_tracks_arrive (false)
 418         ,  nudge_clock (new AudioClock (X_("nudge"), false, X_("nudge"), true, false, true))
 419         , current_stepping_trackview (0)
 420         , last_track_height_step_timestamp (0)
 421         , entered_track (0)
 422         , entered_regionview (0)
 423         , clear_entered_track (false)
 424         , _edit_point (EditAtMouse)
 425         , meters_running (false)
 426         , rhythm_ferret (0)
 427         , _have_idled (false)
 428         , resize_idle_id (-1)
 429         , _pending_resize_amount (0)
 430         , _pending_resize_view (0)
 431         , _pending_locate_request (false)
 432         , _pending_initial_locate (false)
 433         , _summary (0)
 434         , _group_tabs (0)
 435         , _last_motion_y (0)
 436         , layering_order_editor (0)
 437         , _last_cut_copy_source_track (0)
 438         , _region_selection_change_updates_region_list (true)
 439         , _cursors (0)
 440         , _following_mixer_selection (false)
 441         , _control_point_toggled_on_press (false)
 442         , _stepping_axis_view (0)
 443         , quantize_dialog (0)
 444         , _main_menu_disabler (0)
 445         , myactions (X_("editor"))
 446 {
 447         /* we are a singleton */
 448
 449         PublicEditor::_instance = this;
 450
 451         _have_idled = false;
 452
 453         last_event_time.tv_sec = 0;
 454         last_event_time.tv_usec = 0;
 455
 456         selection_op_history.clear();
 457         before.clear();
 458
 459         grid_type_strings =  I18N (_grid_type_strings);
 460         zoom_focus_strings = I18N (_zoom_focus_strings);
 461         edit_mode_strings = I18N (_edit_mode_strings);
 462         edit_point_strings = I18N (_edit_point_strings);
 463 #ifdef USE_RUBBERBAND
 464         rb_opt_strings = I18N (_rb_opt_strings);
 465         rb_current_opt = 4;
 466 #endif
 467
 468         build_edit_mode_menu();
 469         build_zoom_focus_menu();
 470         build_track_count_menu();
 471         build_grid_type_menu();
 472         build_edit_point_menu();
 473
 474         location_marker_color = UIConfiguration::instance().color ("location marker");
 475         location_range_color = UIConfiguration::instance().color ("location range");
 476         location_cd_marker_color = UIConfiguration::instance().color ("location cd marker");
 477         location_loop_color = UIConfiguration::instance().color ("location loop");
 478         location_punch_color = UIConfiguration::instance().color ("location punch");
 479
 480         timebar_height = std::max (12., ceil (15. * UIConfiguration::instance().get_ui_scale()));
 481
 482         TimeAxisView::setup_sizes ();
 483         ArdourMarker::setup_sizes (timebar_height);
 484         TempoCurve::setup_sizes (timebar_height);
 485
 486         bbt_label.set_name ("EditorRulerLabel");
 487         bbt_label.set_size_request (-1, (int)timebar_height);
 488         bbt_label.set_alignment (1.0, 0.5);
 489         bbt_label.set_padding (5,0);
 490         bbt_label.hide ();
 491         bbt_label.set_no_show_all();
 492         minsec_label.set_name ("EditorRulerLabel");
 493         minsec_label.set_size_request (-1, (int)timebar_height);
 494         minsec_label.set_alignment (1.0, 0.5);
 495         minsec_label.set_padding (5,0);
 496         minsec_label.hide ();
 497         minsec_label.set_no_show_all();
 498         timecode_label.set_name ("EditorRulerLabel");
 499         timecode_label.set_size_request (-1, (int)timebar_height);
 500         timecode_label.set_alignment (1.0, 0.5);
 501         timecode_label.set_padding (5,0);
 502         timecode_label.hide ();
 503         timecode_label.set_no_show_all();
 504         samples_label.set_name ("EditorRulerLabel");
 505         samples_label.set_size_request (-1, (int)timebar_height);
 506         samples_label.set_alignment (1.0, 0.5);
 507         samples_label.set_padding (5,0);
 508         samples_label.hide ();
 509         samples_label.set_no_show_all();
 510
 511         tempo_label.set_name ("EditorRulerLabel");
 512         tempo_label.set_size_request (-1, (int)timebar_height);
 513         tempo_label.set_alignment (1.0, 0.5);
 514         tempo_label.set_padding (5,0);
 515         tempo_label.hide();
 516         tempo_label.set_no_show_all();
 517
 518         meter_label.set_name ("EditorRulerLabel");
 519         meter_label.set_size_request (-1, (int)timebar_height);
 520         meter_label.set_alignment (1.0, 0.5);
 521         meter_label.set_padding (5,0);
 522         meter_label.hide();
 523         meter_label.set_no_show_all();
 524
 525         if (Profile->get_trx()) {
 526                 mark_label.set_text (_("Markers"));
 527         }
 528         mark_label.set_name ("EditorRulerLabel");
 529         mark_label.set_size_request (-1, (int)timebar_height);
 530         mark_label.set_alignment (1.0, 0.5);
 531         mark_label.set_padding (5,0);
 532         mark_label.hide();
 533         mark_label.set_no_show_all();
 534
 535         cd_mark_label.set_name ("EditorRulerLabel");
 536         cd_mark_label.set_size_request (-1, (int)timebar_height);
 537         cd_mark_label.set_alignment (1.0, 0.5);
 538         cd_mark_label.set_padding (5,0);
 539         cd_mark_label.hide();
 540         cd_mark_label.set_no_show_all();
 541
 542         videotl_bar_height = 4;
 543         videotl_label.set_name ("EditorRulerLabel");
 544         videotl_label.set_size_request (-1, (int)timebar_height * videotl_bar_height);
 545         videotl_label.set_alignment (1.0, 0.5);
 546         videotl_label.set_padding (5,0);
 547         videotl_label.hide();
 548         videotl_label.set_no_show_all();
 549
 550         range_mark_label.set_name ("EditorRulerLabel");
 551         range_mark_label.set_size_request (-1, (int)timebar_height);
 552         range_mark_label.set_alignment (1.0, 0.5);
 553         range_mark_label.set_padding (5,0);
 554         range_mark_label.hide();
 555         range_mark_label.set_no_show_all();
 556
 557         transport_mark_label.set_name ("EditorRulerLabel");
 558         transport_mark_label.set_size_request (-1, (int)timebar_height);
 559         transport_mark_label.set_alignment (1.0, 0.5);
 560         transport_mark_label.set_padding (5,0);
 561         transport_mark_label.hide();
 562         transport_mark_label.set_no_show_all();
 563
 564         initialize_canvas ();
 565
 566         CairoWidget::set_focus_handler (sigc::mem_fun (ARDOUR_UI::instance(), &ARDOUR_UI::reset_focus));
 567
 568         _summary = new EditorSummary (this);
 569
 570         selection->TimeChanged.connect (sigc::mem_fun(*this, &Editor::time_selection_changed));
 571         selection->TracksChanged.connect (sigc::mem_fun(*this, &Editor::track_selection_changed));
 572
 573         editor_regions_selection_changed_connection = selection->RegionsChanged.connect (sigc::mem_fun(*this, &Editor::region_selection_changed));
 574
 575         selection->PointsChanged.connect (sigc::mem_fun(*this, &Editor::point_selection_changed));
 576         selection->MarkersChanged.connect (sigc::mem_fun(*this, &Editor::marker_selection_changed));
 577
 578         edit_controls_vbox.set_spacing (0);
 579         vertical_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &Editor::tie_vertical_scrolling), true);
 580         _track_canvas->signal_map_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_map_handler));
 581
 582         HBox* h = manage (new HBox);
 583         _group_tabs = new EditorGroupTabs (this);
 584         if (!ARDOUR::Profile->get_trx()) {
 585                 h->pack_start (*_group_tabs, PACK_SHRINK);
 586         }
 587         h->pack_start (edit_controls_vbox);
 588         controls_layout.add (*h);
 589
 590         controls_layout.set_name ("EditControlsBase");
 591         controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK|Gdk::SCROLL_MASK);
 592         controls_layout.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::edit_controls_button_release));
 593         controls_layout.signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::control_layout_scroll), false);
 594
 595         _cursors = new MouseCursors;
 596         _cursors->set_cursor_set (UIConfiguration::instance().get_icon_set());
 597         cerr << "Set cursor set to " << UIConfiguration::instance().get_icon_set() << endl;
 598
 599         /* Push default cursor to ever-present bottom of cursor stack. */
 600         push_canvas_cursor(_cursors->grabber);
 601
 602         ArdourCanvas::GtkCanvas* time_pad = manage (new ArdourCanvas::GtkCanvas ());
 603
 604         ArdourCanvas::Line* pad_line_1 = new ArdourCanvas::Line (time_pad->root());
 605         pad_line_1->set (ArdourCanvas::Duple (0.0, 1.0), ArdourCanvas::Duple (100.0, 1.0));
 606         pad_line_1->set_outline_color (0xFF0000FF);
 607         pad_line_1->show();
 608
 609         // CAIROCANVAS
 610         time_pad->show();
 611
 612         edit_packer.set_col_spacings (0);
 613         edit_packer.set_row_spacings (0);
 614         edit_packer.set_homogeneous (false);
 615         edit_packer.set_border_width (0);
 616         edit_packer.set_name ("EditorWindow");
 617
 618         time_bars_event_box.add (time_bars_vbox);
 619         time_bars_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 620         time_bars_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 621
 622         /* labels for the time bars */
 623         edit_packer.attach (time_bars_event_box,     0, 1, 0, 1,    FILL,        SHRINK, 0, 0);
 624         /* track controls */
 625         edit_packer.attach (controls_layout,         0, 1, 1, 2,    FILL,        FILL|EXPAND, 0, 0);
 626         /* canvas */
 627         edit_packer.attach (*_track_canvas_viewport,  1, 2, 0, 2,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 628
 629         bottom_hbox.set_border_width (2);
 630         bottom_hbox.set_spacing (3);
 631
 632         PresentationInfo::Change.connect (*this, MISSING_INVALIDATOR, boost::bind (&Editor::presentation_info_changed, this, _1), gui_context());
 633
 634         _route_groups = new EditorRouteGroups (this);
 635         _routes = new EditorRoutes (this);
 636         _regions = new EditorRegions (this);
 637         _snapshots = new EditorSnapshots (this);
 638         _locations = new EditorLocations (this);
 639         _time_info_box = new TimeInfoBox ("EditorTimeInfo", true);
 640
 641         /* these are static location signals */
 642
 643         Location::start_changed.connect (*this, invalidator (*this), boost::bind (&Editor::location_changed, this, _1), gui_context());
 644         Location::end_changed.connect (*this, invalidator (*this), boost::bind (&Editor::location_changed, this, _1), gui_context());
 645         Location::changed.connect (*this, invalidator (*this), boost::bind (&Editor::location_changed, this, _1), gui_context());
 646
 647         add_notebook_page (_("Regions"), _regions->widget ());
 648         add_notebook_page (_("Tracks & Busses"), _routes->widget ());
 649         add_notebook_page (_("Snapshots"), _snapshots->widget ());
 650         add_notebook_page (_("Track & Bus Groups"), _route_groups->widget ());
 651         add_notebook_page (_("Ranges & Marks"), _locations->widget ());
 652
 653         _the_notebook.set_show_tabs (true);
 654         _the_notebook.set_scrollable (true);
 655         _the_notebook.popup_disable ();
 656         _the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 657         _the_notebook.show_all ();
 658
 659         _notebook_shrunk = false;
 660
 661
 662         /* Pick up some settings we need to cache, early */
 663
 664         XMLNode* settings = ARDOUR_UI::instance()->editor_settings();
 665
 666         if (settings) {
 667                 settings->get_property ("notebook-shrunk", _notebook_shrunk);
 668         }
 669
 670         editor_summary_pane.set_check_divider_position (true);
 671         editor_summary_pane.add (edit_packer);
 672
 673         Button* summary_arrow_left = manage (new Button);
 674         summary_arrow_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
 675         summary_arrow_left->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), LEFT)));
 676         summary_arrow_left->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 677
 678         Button* summary_arrow_right = manage (new Button);
 679         summary_arrow_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
 680         summary_arrow_right->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), RIGHT)));
 681         summary_arrow_right->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 682
 683         VBox* summary_arrows_left = manage (new VBox);
 684         summary_arrows_left->pack_start (*summary_arrow_left);
 685
 686         VBox* summary_arrows_right = manage (new VBox);
 687         summary_arrows_right->pack_start (*summary_arrow_right);
 688
 689         Frame* summary_sample = manage (new Frame);
 690         summary_sample->set_shadow_type (Gtk::SHADOW_ETCHED_IN);
 691
 692         summary_sample->add (*_summary);
 693         summary_sample->show ();
 694
 695         _summary_hbox.pack_start (*summary_arrows_left, false, false);
 696         _summary_hbox.pack_start (*summary_sample, true, true);
 697         _summary_hbox.pack_start (*summary_arrows_right, false, false);
 698
 699         if (!ARDOUR::Profile->get_trx()) {
 700                 editor_summary_pane.add (_summary_hbox);
 701         }
 702
 703         edit_pane.set_check_divider_position (true);
 704         edit_pane.add (editor_summary_pane);
 705         if (!ARDOUR::Profile->get_trx()) {
 706                 _editor_list_vbox.pack_start (*_time_info_box, false, false, 0);
 707                 _editor_list_vbox.pack_start (_the_notebook);
 708                 edit_pane.add (_editor_list_vbox);
 709                 edit_pane.set_child_minsize (_editor_list_vbox, 30); /* rough guess at width of notebook tabs */
 710         }
 711
 712         edit_pane.set_drag_cursor (*_cursors->expand_left_right);
 713         editor_summary_pane.set_drag_cursor (*_cursors->expand_up_down);
 714
 715         float fract;
 716         if (!settings || !settings->get_property ("edit-horizontal-pane-pos", fract) || fract > 1.0) {
 717                 /* initial allocation is 90% to canvas, 10% to notebook */
 718                 fract = 0.90;
 719         }
 720         edit_pane.set_divider (0, fract);
 721
 722         if (!settings || !settings->get_property ("edit-vertical-pane-pos", fract) || fract > 1.0) {
 723                 /* initial allocation is 90% to canvas, 10% to summary */
 724                 fract = 0.90;
 725         }
 726         editor_summary_pane.set_divider (0, fract);
 727
 728         global_vpacker.set_spacing (2);
 729         global_vpacker.set_border_width (0);
 730
 731         //the next three EventBoxes provide the ability for their child widgets to have a background color.  That is all.
 732
 733         Gtk::EventBox* ebox = manage (new Gtk::EventBox);  //a themeable box
 734         ebox->set_name("EditorWindow");
 735         ebox->add (toolbar_hbox);
 736
 737         Gtk::EventBox* epane_box = manage (new EventBoxExt);  //a themeable box
 738         epane_box->set_name("EditorWindow");
 739         epane_box->add (edit_pane);
 740
 741         Gtk::EventBox* epane_box2 = manage (new EventBoxExt);  //a themeable box
 742         epane_box2->set_name("EditorWindow");
 743         epane_box2->add (global_vpacker);
 744
 745         global_vpacker.pack_start (*ebox, false, false);
 746         global_vpacker.pack_start (*epane_box, true, true);
 747         global_hpacker.pack_start (*epane_box2, true, true);
 748
 749         /* need to show the "contents" widget so that notebook will show if tab is switched to
 750          */
 751
 752         global_hpacker.show ();
 753
 754         /* register actions now so that set_state() can find them and set toggles/checks etc */
 755
 756         register_actions ();
 757         load_bindings ();
 758
 759         setup_toolbar ();
 760
 761         _playlist_selector = new PlaylistSelector();
 762         _playlist_selector->signal_delete_event().connect (sigc::bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 763
 764         RegionView::RegionViewGoingAway.connect (*this, invalidator (*this),  boost::bind (&Editor::catch_vanishing_regionview, this, _1), gui_context());
 765
 766         /* nudge stuff */
 767
 768         nudge_forward_button.set_name ("nudge button");
 769         nudge_forward_button.set_icon(ArdourIcon::NudgeRight);
 770
 771         nudge_backward_button.set_name ("nudge button");
 772         nudge_backward_button.set_icon(ArdourIcon::NudgeLeft);
 773
 774         fade_context_menu.set_name ("ArdourContextMenu");
 775
 776         Gtkmm2ext::Keyboard::the_keyboard().ZoomVerticalModifierReleased.connect (sigc::mem_fun (*this, &Editor::zoom_vertical_modifier_released));
 777
 778         /* allow external control surfaces/protocols to do various things */
 779
 780         ControlProtocol::ZoomToSession.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_session, this), gui_context());
 781         ControlProtocol::ZoomIn.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_step, this, false), gui_context());
 782         ControlProtocol::ZoomOut.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_step, this, true), gui_context());
 783         ControlProtocol::Undo.connect (*this, invalidator (*this), boost::bind (&Editor::undo, this, true), gui_context());
 784         ControlProtocol::Redo.connect (*this, invalidator (*this), boost::bind (&Editor::redo, this, true), gui_context());
 785         ControlProtocol::ScrollTimeline.connect (*this, invalidator (*this), boost::bind (&Editor::control_scroll, this, _1), gui_context());
 786         ControlProtocol::StepTracksUp.connect (*this, invalidator (*this), boost::bind (&Editor::control_step_tracks_up, this), gui_context());
 787         ControlProtocol::StepTracksDown.connect (*this, invalidator (*this), boost::bind (&Editor::control_step_tracks_down, this), gui_context());
 788         ControlProtocol::GotoView.connect (*this, invalidator (*this), boost::bind (&Editor::control_view, this, _1), gui_context());
 789         ControlProtocol::CloseDialog.connect (*this, invalidator (*this), Keyboard::close_current_dialog, gui_context());
 790         ControlProtocol::VerticalZoomInAll.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_in_all, this), gui_context());
 791         ControlProtocol::VerticalZoomOutAll.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_out_all, this), gui_context());
 792         ControlProtocol::VerticalZoomInSelected.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_in_selected, this), gui_context());
 793         ControlProtocol::VerticalZoomOutSelected.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_out_selected, this), gui_context());
 794
 795         ControlProtocol::AddStripableToSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Add), gui_context());
 796         ControlProtocol::RemoveStripableFromSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Toggle), gui_context());
 797         ControlProtocol::SetStripableSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Set), gui_context());
 798         ControlProtocol::ToggleStripableSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Toggle), gui_context());
 799         ControlProtocol::ClearStripableSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_unselect, this), gui_context());
 800
 801         BasicUI::AccessAction.connect (*this, invalidator (*this), boost::bind (&Editor::access_action, this, _1, _2), gui_context());
 802
 803         /* handle escape */
 804
 805         ARDOUR_UI::instance()->Escape.connect (*this, invalidator (*this), boost::bind (&Editor::escape, this), gui_context());
 806
 807         /* problematic: has to return a value and thus cannot be x-thread */
 808
 809         Session::AskAboutPlaylistDeletion.connect_same_thread (*this, boost::bind (&Editor::playlist_deletion_dialog, this, _1));
 810
 811         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Editor::parameter_changed, this, _1), gui_context());
 812         UIConfiguration::instance().ParameterChanged.connect (sigc::mem_fun (*this, &Editor::ui_parameter_changed));
 813
 814         TimeAxisView::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Editor::timeaxisview_deleted, this, _1), gui_context());
 815
 816         _ignore_region_action = false;
 817         _last_region_menu_was_main = false;
 818         _popup_region_menu_item = 0;
 819
 820         _show_marker_lines = false;
 821
 822         /* Button bindings */
 823
 824         button_bindings = new Bindings ("editor-mouse");
 825
 826         XMLNode* node = button_settings();
 827         if (node) {
 828                 for (XMLNodeList::const_iterator i = node->children().begin(); i != node->children().end(); ++i) {
 829                         button_bindings->load_operation (**i);
 830                 }
 831         }
 832
 833         constructed = true;
 834
 835         /* grab current parameter state */
 836         boost::function<void (string)> pc (boost::bind (&Editor::ui_parameter_changed, this, _1));
 837         UIConfiguration::instance().map_parameters (pc);
 838
 839         setup_fade_images ();
 840
 841         set_grid_to (GridTypeNone);
 842
 843         instant_save ();
 844 }
 845
 846 Editor::~Editor()
 847 {
 848         delete button_bindings;
 849         delete _routes;
 850         delete _route_groups;
 851         delete _track_canvas_viewport;
 852         delete _drags;
 853         delete nudge_clock;
 854         delete _verbose_cursor;
 855         delete quantize_dialog;
 856         delete _summary;
 857         delete _group_tabs;
 858         delete _regions;
 859         delete _snapshots;
 860         delete _locations;
 861         delete _playlist_selector;
 862         delete _time_info_box;
 863         delete selection;
 864         delete cut_buffer;
 865         delete _cursors;
 866
 867         LuaInstance::destroy_instance ();
 868
 869         for (list<XMLNode *>::iterator i = selection_op_history.begin(); i != selection_op_history.end(); ++i) {
 870                 delete *i;
 871         }
 872         for (std::map<ARDOUR::FadeShape, Gtk::Image*>::const_iterator i = _xfade_in_images.begin(); i != _xfade_in_images.end (); ++i) {
 873                 delete i->second;
 874         }
 875         for (std::map<ARDOUR::FadeShape, Gtk::Image*>::const_iterator i = _xfade_out_images.begin(); i != _xfade_out_images.end (); ++i) {
 876                 delete i->second;
 877         }
 878 }
 879
 880 XMLNode*
 881 Editor::button_settings () const
 882 {
 883         XMLNode* settings = ARDOUR_UI::instance()->editor_settings();
 884         XMLNode* node = find_named_node (*settings, X_("Buttons"));
 885
 886         if (!node) {
 887                 node = new XMLNode (X_("Buttons"));
 888         }
 889
 890         return node;
 891 }
 892
 893 bool
 894 Editor::get_smart_mode () const
 895 {
 896         return ((current_mouse_mode() == MouseObject) && smart_mode_action->get_active());
 897 }
 898
 899 void
 900 Editor::catch_vanishing_regionview (RegionView *rv)
 901 {
 902         /* note: the selection will take care of the vanishing
 903            audioregionview by itself.
 904         */
 905
 906         if (_drags->active() && _drags->have_item (rv->get_canvas_group()) && !_drags->ending()) {
 907                 _drags->abort ();
 908         }
 909
 910         if (clicked_regionview == rv) {
 911                 clicked_regionview = 0;
 912         }
 913
 914         if (entered_regionview == rv) {
 915                 set_entered_regionview (0);
 916         }
 917
 918         if (!_all_region_actions_sensitized) {
 919                 sensitize_all_region_actions (true);
 920         }
 921 }
 922
 923 void
 924 Editor::set_entered_regionview (RegionView* rv)
 925 {
 926         if (rv == entered_regionview) {
 927                 return;
 928         }
 929
 930         if (entered_regionview) {
 931                 entered_regionview->exited ();
 932         }
 933
 934         entered_regionview = rv;
 935
 936         if (entered_regionview  != 0) {
 937                 entered_regionview->entered ();
 938         }
 939
 940         if (!_all_region_actions_sensitized && _last_region_menu_was_main) {
 941                 /* This RegionView entry might have changed what region actions
 942                    are allowed, so sensitize them all in case a key is pressed.
 943                 */
 944                 sensitize_all_region_actions (true);
 945         }
 946 }
 947
 948 void
 949 Editor::set_entered_track (TimeAxisView* tav)
 950 {
 951         if (entered_track) {
 952                 entered_track->exited ();
 953         }
 954
 955         entered_track = tav;
 956
 957         if (entered_track) {
 958                 entered_track->entered ();
 959         }
 960 }
 961
 962 void
 963 Editor::instant_save ()
 964 {
 965         if (!constructed || !ARDOUR_UI::instance()->session_loaded || no_save_instant) {
 966                 return;
 967         }
 968
 969         if (_session) {
 970                 _session->add_instant_xml(get_state());
 971         } else {
 972                 Config->add_instant_xml(get_state());
 973         }
 974 }
 975
 976 void
 977 Editor::control_vertical_zoom_in_all ()
 978 {
 979         tav_zoom_smooth (false, true);
 980 }
 981
 982 void
 983 Editor::control_vertical_zoom_out_all ()
 984 {
 985         tav_zoom_smooth (true, true);
 986 }
 987
 988 void
 989 Editor::control_vertical_zoom_in_selected ()
 990 {
 991         tav_zoom_smooth (false, false);
 992 }
 993
 994 void
 995 Editor::control_vertical_zoom_out_selected ()
 996 {
 997         tav_zoom_smooth (true, false);
 998 }
 999
1000 void
1001 Editor::control_view (uint32_t view)
1002 {
1003         goto_visual_state (view);
1004 }
1005
1006 void
1007 Editor::control_unselect ()
1008 {
1009         selection->clear_tracks ();
1010 }
1011
1012 void
1013 Editor::control_select (boost::shared_ptr<Stripable> s, Selection::Operation op)
1014 {
1015         TimeAxisView* tav = time_axis_view_from_stripable (s);
1016
1017         if (tav) {
1018                 switch (op) {
1019                 case Selection::Add:
1020                         selection->add (tav);
1021                         break;
1022                 case Selection::Toggle:
1023                         selection->toggle (tav);
1024                         break;
1025                 case Selection::Extend:
1026                         break;
1027                 case Selection::Set:
1028                         selection->set (tav);
1029                         break;
1030                 }
1031         } else {
1032                 selection->clear_tracks ();
1033         }
1034 }
1035
1036 void
1037 Editor::control_step_tracks_up ()
1038 {
1039         scroll_tracks_up_line ();
1040 }
1041
1042 void
1043 Editor::control_step_tracks_down ()
1044 {
1045         scroll_tracks_down_line ();
1046 }
1047
1048 void
1049 Editor::control_scroll (float fraction)
1050 {
1051         ENSURE_GUI_THREAD (*this, &Editor::control_scroll, fraction)
1052
1053         if (!_session) {
1054                 return;
1055         }
1056
1057         double step = fraction * current_page_samples();
1058
1059         /*
1060                 _control_scroll_target is an optional<T>
1061
1062                 it acts like a pointer to an samplepos_t, with
1063                 a operator conversion to boolean to check
1064                 that it has a value could possibly use
1065                 playhead_cursor->current_sample to store the
1066                 value and a boolean in the class to know
1067                 when it's out of date
1068         */
1069
1070         if (!_control_scroll_target) {
1071                 _control_scroll_target = _session->transport_sample();
1072                 _dragging_playhead = true;
1073         }
1074
1075         if ((fraction < 0.0f) && (*_control_scroll_target <= (samplepos_t) fabs(step))) {
1076                 *_control_scroll_target = 0;
1077         } else if ((fraction > 0.0f) && (max_samplepos - *_control_scroll_target < step)) {
1078                 *_control_scroll_target = max_samplepos - (current_page_samples()*2); // allow room for slop in where the PH is on the screen
1079         } else {
1080                 *_control_scroll_target += (samplepos_t) trunc (step);
1081         }
1082
1083         /* move visuals, we'll catch up with it later */
1084
1085         playhead_cursor->set_position (*_control_scroll_target);
1086         UpdateAllTransportClocks (*_control_scroll_target);
1087
1088         if (*_control_scroll_target > (current_page_samples() / 2)) {
1089                 /* try to center PH in window */
1090                 reset_x_origin (*_control_scroll_target - (current_page_samples()/2));
1091         } else {
1092                 reset_x_origin (0);
1093         }
1094
1095         /*
1096                 Now we do a timeout to actually bring the session to the right place
1097                 according to the playhead. This is to avoid reading disk buffers on every
1098                 call to control_scroll, which is driven by ScrollTimeline and therefore
1099                 probably by a control surface wheel which can generate lots of events.
1100         */
1101         /* cancel the existing timeout */
1102
1103         control_scroll_connection.disconnect ();
1104
1105         /* add the next timeout */
1106
1107         control_scroll_connection = Glib::signal_timeout().connect (sigc::bind (sigc::mem_fun (*this, &Editor::deferred_control_scroll), *_control_scroll_target), 250);
1108 }
1109
1110 bool
1111 Editor::deferred_control_scroll (samplepos_t /*target*/)
1112 {
1113         _session->request_locate (*_control_scroll_target, _session->transport_rolling());
1114         // reset for next stream
1115         _control_scroll_target = boost::none;
1116         _dragging_playhead = false;
1117         return false;
1118 }
1119
1120 void
1121 Editor::access_action (const std::string& action_group, const std::string& action_item)
1122 {
1123         if (!_session) {
1124                 return;
1125         }
1126
1127         ENSURE_GUI_THREAD (*this, &Editor::access_action, action_group, action_item)
1128
1129         RefPtr<Action> act;
1130         act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
1131
1132         if (act) {
1133                 act->activate();
1134         }
1135 }
1136
1137 void
1138 Editor::set_toggleaction (const std::string& action_group, const std::string& action_item, bool s)
1139 {
1140         ActionManager::set_toggleaction_state (action_group.c_str(), action_item.c_str(), s);
1141 }
1142
1143 void
1144 Editor::on_realize ()
1145 {
1146         Realized ();
1147
1148         if (UIConfiguration::instance().get_lock_gui_after_seconds()) {
1149                 start_lock_event_timing ();
1150         }
1151 }
1152
1153 void
1154 Editor::start_lock_event_timing ()
1155 {
1156         /* check if we should lock the GUI every 30 seconds */
1157
1158         Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::lock_timeout_callback), 30 * 1000);
1159 }
1160
1161 bool
1162 Editor::generic_event_handler (GdkEvent* ev)
1163 {
1164         switch (ev->type) {
1165         case GDK_BUTTON_PRESS:
1166         case GDK_BUTTON_RELEASE:
1167         case GDK_MOTION_NOTIFY:
1168         case GDK_KEY_PRESS:
1169         case GDK_KEY_RELEASE:
1170                 if (contents().is_mapped()) {
1171                         gettimeofday (&last_event_time, 0);
1172                 }
1173                 break;
1174
1175         case GDK_LEAVE_NOTIFY:
1176                 switch (ev->crossing.detail) {
1177                 case GDK_NOTIFY_UNKNOWN:
1178                 case GDK_NOTIFY_INFERIOR:
1179                 case GDK_NOTIFY_ANCESTOR:
1180                         break;
1181                 case GDK_NOTIFY_VIRTUAL:
1182                 case GDK_NOTIFY_NONLINEAR:
1183                 case GDK_NOTIFY_NONLINEAR_VIRTUAL:
1184                         /* leaving window, so reset focus, thus ending any and
1185                            all text entry operations.
1186                         */
1187                         ARDOUR_UI::instance()->reset_focus (&contents());
1188                         break;
1189                 }
1190                 break;
1191
1192         default:
1193                 break;
1194         }
1195
1196         return false;
1197 }
1198
1199 bool
1200 Editor::lock_timeout_callback ()
1201 {
1202         struct timeval now, delta;
1203
1204         gettimeofday (&now, 0);
1205
1206         timersub (&now, &last_event_time, &delta);
1207
1208         if (delta.tv_sec > (time_t) UIConfiguration::instance().get_lock_gui_after_seconds()) {
1209                 lock ();
1210                 /* don't call again. Returning false will effectively
1211                    disconnect us from the timer callback.
1212
1213                    unlock() will call start_lock_event_timing() to get things
1214                    started again.
1215                 */
1216                 return false;
1217         }
1218
1219         return true;
1220 }
1221
1222 void
1223 Editor::map_position_change (samplepos_t sample)
1224 {
1225         ENSURE_GUI_THREAD (*this, &Editor::map_position_change, sample)
1226
1227         if (_session == 0) {
1228                 return;
1229         }
1230
1231         if (_follow_playhead) {
1232                 center_screen (sample);
1233         }
1234
1235         playhead_cursor->set_position (sample);
1236 }
1237
1238 void
1239 Editor::center_screen (samplepos_t sample)
1240 {
1241         samplecnt_t const page = _visible_canvas_width * samples_per_pixel;
1242
1243         /* if we're off the page, then scroll.
1244          */
1245
1246         if (sample < _leftmost_sample || sample >= _leftmost_sample + page) {
1247                 center_screen_internal (sample, page);
1248         }
1249 }
1250
1251 void
1252 Editor::center_screen_internal (samplepos_t sample, float page)
1253 {
1254         page /= 2;
1255
1256         if (sample > page) {
1257                 sample -= (samplepos_t) page;
1258         } else {
1259                 sample = 0;
1260         }
1261
1262         reset_x_origin (sample);
1263 }
1264
1265
1266 void
1267 Editor::update_title ()
1268 {
1269         ENSURE_GUI_THREAD (*this, &Editor::update_title);
1270
1271         if (!own_window()) {
1272                 return;
1273         }
1274
1275         if (_session) {
1276                 bool dirty = _session->dirty();
1277
1278                 string session_name;
1279
1280                 if (_session->snap_name() != _session->name()) {
1281                         session_name = _session->snap_name();
1282                 } else {
1283                         session_name = _session->name();
1284                 }
1285
1286                 if (dirty) {
1287                         session_name = "*" + session_name;
1288                 }
1289
1290                 WindowTitle title(session_name);
1291                 title += S_("Window|Editor");
1292                 title += Glib::get_application_name();
1293                 own_window()->set_title (title.get_string());
1294         } else {
1295                 /* ::session_going_away() will have taken care of it */
1296         }
1297 }
1298
1299 void
1300 Editor::set_session (Session *t)
1301 {
1302         SessionHandlePtr::set_session (t);
1303
1304         if (!_session) {
1305                 return;
1306         }
1307
1308         //initialize _leftmost_sample to the extents of the session
1309         //this prevents a bogus setting of leftmost = "0" if the summary view asks for the leftmost sample before the visible state has been loaded from instant.xml
1310         _leftmost_sample = session_gui_extents().first;
1311
1312         _playlist_selector->set_session (_session);
1313         nudge_clock->set_session (_session);
1314         _summary->set_session (_session);
1315         _group_tabs->set_session (_session);
1316         _route_groups->set_session (_session);
1317         _regions->set_session (_session);
1318         _snapshots->set_session (_session);
1319         _routes->set_session (_session);
1320         _locations->set_session (_session);
1321         _time_info_box->set_session (_session);
1322
1323         if (rhythm_ferret) {
1324                 rhythm_ferret->set_session (_session);
1325         }
1326
1327         if (analysis_window) {
1328                 analysis_window->set_session (_session);
1329         }
1330
1331         if (sfbrowser) {
1332                 sfbrowser->set_session (_session);
1333         }
1334
1335         compute_fixed_ruler_scale ();
1336
1337         /* Make sure we have auto loop and auto punch ranges */
1338
1339         Location* loc = _session->locations()->auto_loop_location();
1340         if (loc != 0) {
1341                 loc->set_name (_("Loop"));
1342         }
1343
1344         loc = _session->locations()->auto_punch_location();
1345         if (loc != 0) {
1346                 // force name
1347                 loc->set_name (_("Punch"));
1348         }
1349
1350         refresh_location_display ();
1351
1352         /* This must happen after refresh_location_display(), as (amongst other things) we restore
1353            the selected Marker; this needs the LocationMarker list to be available.
1354         */
1355         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
1356         set_state (*node, Stateful::loading_state_version);
1357
1358         /* catch up on selection state, etc. */
1359
1360         PropertyChange sc;
1361         sc.add (Properties::selected);
1362         presentation_info_changed (sc);
1363
1364         /* catch up with the playhead */
1365
1366         _session->request_locate (playhead_cursor->current_sample ());
1367         _pending_initial_locate = true;
1368
1369         update_title ();
1370
1371         /* These signals can all be emitted by a non-GUI thread. Therefore the
1372            handlers for them must not attempt to directly interact with the GUI,
1373            but use PBD::Signal<T>::connect() which accepts an event loop
1374            ("context") where the handler will be asked to run.
1375         */
1376
1377         _session->StepEditStatusChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::step_edit_status_change, this, _1), gui_context());
1378         _session->TransportStateChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_transport_state, this), gui_context());
1379         _session->TransportLooped.connect (_session_connections, invalidator (*this), boost::bind (&Editor::transport_looped, this), gui_context());
1380         _session->PositionChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_position_change, this, _1), gui_context());
1381         _session->vca_manager().VCAAdded.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_vcas, this, _1), gui_context());
1382         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_routes, this, _1), gui_context());
1383         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::update_title, this), gui_context());
1384         _session->tempo_map().PropertyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::tempo_map_changed, this, _1), gui_context());
1385         _session->tempo_map().MetricPositionChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::tempometric_position_changed, this, _1), gui_context());
1386         _session->Located.connect (_session_connections, invalidator (*this), boost::bind (&Editor::located, this), gui_context());
1387         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::parameter_changed, this, _1), gui_context());
1388         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Editor::session_state_saved, this, _1), gui_context());
1389         _session->locations()->added.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_new_location, this, _1), gui_context());
1390         _session->locations()->removed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::location_gone, this, _1), gui_context());
1391         _session->locations()->changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::refresh_location_display, this), gui_context());
1392         _session->history().Changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::history_changed, this), gui_context());
1393
1394         playhead_cursor->track_canvas_item().reparent ((ArdourCanvas::Item*) get_cursor_scroll_group());
1395         playhead_cursor->show ();
1396
1397         snapped_cursor->track_canvas_item().reparent ((ArdourCanvas::Item*) get_cursor_scroll_group());
1398         snapped_cursor->set_color (UIConfiguration::instance().color ("edit point"));
1399         snapped_cursor->show ();
1400
1401         boost::function<void (string)> pc (boost::bind (&Editor::parameter_changed, this, _1));
1402         Config->map_parameters (pc);
1403         _session->config.map_parameters (pc);
1404
1405         restore_ruler_visibility ();
1406         //tempo_map_changed (PropertyChange (0));
1407         _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
1408
1409         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1410                 (static_cast<TimeAxisView*>(*i))->set_samples_per_pixel (samples_per_pixel);
1411         }
1412
1413         super_rapid_screen_update_connection = Timers::super_rapid_connect (
1414                 sigc::mem_fun (*this, &Editor::super_rapid_screen_update)
1415                 );
1416
1417         /* register for undo history */
1418         _session->register_with_memento_command_factory(id(), this);
1419         _session->register_with_memento_command_factory(_selection_memento->id(), _selection_memento);
1420
1421         LuaInstance::instance()->set_session(_session);
1422
1423         start_updating_meters ();
1424 }
1425
1426 void
1427 Editor::fill_xfade_menu (Menu_Helpers::MenuList& items, bool start)
1428 {
1429         using namespace Menu_Helpers;
1430
1431         void (Editor::*emf)(FadeShape);
1432         std::map<ARDOUR::FadeShape,Gtk::Image*>* images;
1433
1434         if (start) {
1435                 images = &_xfade_in_images;
1436                 emf = &Editor::set_fade_in_shape;
1437         } else {
1438                 images = &_xfade_out_images;
1439                 emf = &Editor::set_fade_out_shape;
1440         }
1441
1442         items.push_back (
1443                 ImageMenuElem (
1444                         _("Linear (for highly correlated material)"),
1445                         *(*images)[FadeLinear],
1446                         sigc::bind (sigc::mem_fun (*this, emf), FadeLinear)
1447                         )
1448                 );
1449
1450         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1451
1452         items.push_back (
1453                 ImageMenuElem (
1454                         _("Constant power"),
1455                         *(*images)[FadeConstantPower],
1456                         sigc::bind (sigc::mem_fun (*this, emf), FadeConstantPower)
1457                         ));
1458
1459         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1460
1461         items.push_back (
1462                 ImageMenuElem (
1463                         _("Symmetric"),
1464                         *(*images)[FadeSymmetric],
1465                         sigc::bind (sigc::mem_fun (*this, emf), FadeSymmetric)
1466                         )
1467                 );
1468
1469         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1470
1471         items.push_back (
1472                 ImageMenuElem (
1473                         _("Slow"),
1474                         *(*images)[FadeSlow],
1475                         sigc::bind (sigc::mem_fun (*this, emf), FadeSlow)
1476                         ));
1477
1478         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1479
1480         items.push_back (
1481                 ImageMenuElem (
1482                         _("Fast"),
1483                         *(*images)[FadeFast],
1484                         sigc::bind (sigc::mem_fun (*this, emf), FadeFast)
1485                         ));
1486
1487         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1488 }
1489
1490 /** Pop up a context menu for when the user clicks on a start crossfade */
1491 void
1492 Editor::popup_xfade_in_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType /*item_type*/)
1493 {
1494         using namespace Menu_Helpers;
1495         AudioRegionView* arv = dynamic_cast<AudioRegionView*> ((RegionView*)item->get_data ("regionview"));
1496         if (!arv) {
1497                 return;
1498         }
1499
1500         MenuList& items (xfade_in_context_menu.items());
1501         items.clear ();
1502
1503         if (arv->audio_region()->fade_in_active()) {
1504                 items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), false)));
1505         } else {
1506                 items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), true)));
1507         }
1508
1509         items.push_back (SeparatorElem());
1510         fill_xfade_menu (items, true);
1511
1512         xfade_in_context_menu.popup (button, time);
1513 }
1514
1515 /** Pop up a context menu for when the user clicks on an end crossfade */
1516 void
1517 Editor::popup_xfade_out_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType /*item_type*/)
1518 {
1519         using namespace Menu_Helpers;
1520         AudioRegionView* arv = dynamic_cast<AudioRegionView*> ((RegionView*)item->get_data ("regionview"));
1521         if (!arv) {
1522                 return;
1523         }
1524
1525         MenuList& items (xfade_out_context_menu.items());
1526         items.clear ();
1527
1528         if (arv->audio_region()->fade_out_active()) {
1529                 items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), false)));
1530         } else {
1531                 items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), true)));
1532         }
1533
1534         items.push_back (SeparatorElem());
1535         fill_xfade_menu (items, false);
1536
1537         xfade_out_context_menu.popup (button, time);
1538 }
1539
1540 void
1541 Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection)
1542 {
1543         using namespace Menu_Helpers;
1544         Menu* (Editor::*build_menu_function)();
1545         Menu *menu;
1546
1547         switch (item_type) {
1548         case RegionItem:
1549         case RegionViewName:
1550         case RegionViewNameHighlight:
1551         case LeftFrameHandle:
1552         case RightFrameHandle:
1553                 if (with_selection) {
1554                         build_menu_function = &Editor::build_track_selection_context_menu;
1555                 } else {
1556                         build_menu_function = &Editor::build_track_region_context_menu;
1557                 }
1558                 break;
1559
1560         case SelectionItem:
1561                 if (with_selection) {
1562                         build_menu_function = &Editor::build_track_selection_context_menu;
1563                 } else {
1564                         build_menu_function = &Editor::build_track_context_menu;
1565                 }
1566                 break;
1567
1568         case StreamItem:
1569                 if (clicked_routeview->track()) {
1570                         build_menu_function = &Editor::build_track_context_menu;
1571                 } else {
1572                         build_menu_function = &Editor::build_track_bus_context_menu;
1573                 }
1574                 break;
1575
1576         default:
1577                 /* probably shouldn't happen but if it does, we don't care */
1578                 return;
1579         }
1580
1581         menu = (this->*build_menu_function)();
1582         menu->set_name ("ArdourContextMenu");
1583
1584         /* now handle specific situations */
1585
1586         switch (item_type) {
1587         case RegionItem:
1588         case RegionViewName:
1589         case RegionViewNameHighlight:
1590         case LeftFrameHandle:
1591         case RightFrameHandle:
1592                 if (!with_selection) {
1593                         if (region_edit_menu_split_item) {
1594                                 if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
1595                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, true);
1596                                 } else {
1597                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
1598                                 }
1599                         }
1600                         if (region_edit_menu_split_multichannel_item) {
1601                                 if (clicked_regionview && clicked_regionview->region()->n_channels() > 1) {
1602                                         region_edit_menu_split_multichannel_item->set_sensitive (true);
1603                                 } else {
1604                                         region_edit_menu_split_multichannel_item->set_sensitive (false);
1605                                 }
1606                         }
1607                 }
1608                 break;
1609
1610         case SelectionItem:
1611                 break;
1612
1613         case StreamItem:
1614                 break;
1615
1616         default:
1617                 /* probably shouldn't happen but if it does, we don't care */
1618                 return;
1619         }
1620
1621         if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
1622
1623                 /* Bounce to disk */
1624
1625                 using namespace Menu_Helpers;
1626                 MenuList& edit_items  = menu->items();
1627
1628                 edit_items.push_back (SeparatorElem());
1629
1630                 switch (clicked_routeview->audio_track()->freeze_state()) {
1631                 case AudioTrack::NoFreeze:
1632                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1633                         break;
1634
1635                 case AudioTrack::Frozen:
1636                         edit_items.push_back (MenuElem (_("Unfreeze"), sigc::mem_fun(*this, &Editor::unfreeze_route)));
1637                         break;
1638
1639                 case AudioTrack::UnFrozen:
1640                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1641                         break;
1642                 }
1643
1644         }
1645
1646         if (item_type == StreamItem && clicked_routeview) {
1647                 clicked_routeview->build_underlay_menu(menu);
1648         }
1649
1650         /* When the region menu is opened, we setup the actions so that they look right
1651            in the menu.
1652         */
1653         sensitize_the_right_region_actions (false);
1654         _last_region_menu_was_main = false;
1655
1656         menu->signal_hide().connect (sigc::bind (sigc::mem_fun (*this, &Editor::sensitize_all_region_actions), true));
1657         menu->popup (button, time);
1658 }
1659
1660 Menu*
1661 Editor::build_track_context_menu ()
1662 {
1663         using namespace Menu_Helpers;
1664
1665         MenuList& edit_items = track_context_menu.items();
1666         edit_items.clear();
1667
1668         add_dstream_context_items (edit_items);
1669         return &track_context_menu;
1670 }
1671
1672 Menu*
1673 Editor::build_track_bus_context_menu ()
1674 {
1675         using namespace Menu_Helpers;
1676
1677         MenuList& edit_items = track_context_menu.items();
1678         edit_items.clear();
1679
1680         add_bus_context_items (edit_items);
1681         return &track_context_menu;
1682 }
1683
1684 Menu*
1685 Editor::build_track_region_context_menu ()
1686 {
1687         using namespace Menu_Helpers;
1688         MenuList& edit_items  = track_region_context_menu.items();
1689         edit_items.clear();
1690
1691         /* we've just cleared the track region context menu, so the menu that these
1692            two items were on will have disappeared; stop them dangling.
1693         */
1694         region_edit_menu_split_item = 0;
1695         region_edit_menu_split_multichannel_item = 0;
1696
1697         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
1698
1699         if (rtv) {
1700                 boost::shared_ptr<Track> tr;
1701                 boost::shared_ptr<Playlist> pl;
1702
1703                 if ((tr = rtv->track())) {
1704                         add_region_context_items (edit_items, tr);
1705                 }
1706         }
1707
1708         add_dstream_context_items (edit_items);
1709
1710         return &track_region_context_menu;
1711 }
1712
1713 void
1714 Editor::loudness_analyze_region_selection ()
1715 {
1716         if (!_session) {
1717                 return;
1718         }
1719         Selection& s (PublicEditor::instance ().get_selection ());
1720         RegionSelection ars = s.regions;
1721         ARDOUR::AnalysisGraph ag (_session);
1722         samplecnt_t total_work = 0;
1723
1724         for (RegionSelection::iterator j = ars.begin (); j != ars.end (); ++j) {
1725                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*j);
1726                 if (!arv) {
1727                         continue;
1728                 }
1729                 if (!boost::dynamic_pointer_cast<AudioRegion> (arv->region ())) {
1730                         continue;
1731                 }
1732                 assert (dynamic_cast<RouteTimeAxisView *> (&arv->get_time_axis_view ()));
1733                 total_work += arv->region ()->length ();
1734         }
1735
1736         SimpleProgressDialog spd (_("Region Loudness Analysis"), sigc::mem_fun (ag, &AnalysisGraph::cancel));
1737         ScopedConnection c;
1738         ag.set_total_samples (total_work);
1739         ag.Progress.connect_same_thread (c, boost::bind (&SimpleProgressDialog::update_progress, &spd, _1, _2));
1740         spd.show();
1741
1742         for (RegionSelection::iterator j = ars.begin (); j != ars.end (); ++j) {
1743                 AudioRegionView* arv = dynamic_cast<AudioRegionView*> (*j);
1744                 if (!arv) {
1745                         continue;
1746                 }
1747                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (arv->region ());
1748                 if (!ar) {
1749                         continue;
1750                 }
1751                 ag.analyze_region (ar);
1752         }
1753         spd.hide();
1754         if (!ag.canceled ()) {
1755                 ExportReport er (_("Audio Report/Analysis"), ag.results ());
1756                 er.run();
1757         }
1758 }
1759
1760 void
1761 Editor::loudness_analyze_range_selection ()
1762 {
1763         if (!_session) {
1764                 return;
1765         }
1766         Selection& s (PublicEditor::instance ().get_selection ());
1767         TimeSelection ts = s.time;
1768         ARDOUR::AnalysisGraph ag (_session);
1769         samplecnt_t total_work = 0;
1770
1771         for (TrackSelection::iterator i = s.tracks.begin (); i != s.tracks.end (); ++i) {
1772                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist> ((*i)->playlist ());
1773                 if (!pl) {
1774                         continue;
1775                 }
1776                 RouteUI *rui = dynamic_cast<RouteUI *> (*i);
1777                 if (!pl || !rui) {
1778                         continue;
1779                 }
1780                 for (std::list<AudioRange>::iterator j = ts.begin (); j != ts.end (); ++j) {
1781                         total_work += j->length ();
1782                 }
1783         }
1784
1785         SimpleProgressDialog spd (_("Range Loudness Analysis"), sigc::mem_fun (ag, &AnalysisGraph::cancel));
1786         ScopedConnection c;
1787         ag.set_total_samples (total_work);
1788         ag.Progress.connect_same_thread (c, boost::bind (&SimpleProgressDialog::update_progress, &spd, _1, _2));
1789         spd.show();
1790
1791         for (TrackSelection::iterator i = s.tracks.begin (); i != s.tracks.end (); ++i) {
1792                 boost::shared_ptr<AudioPlaylist> pl = boost::dynamic_pointer_cast<AudioPlaylist> ((*i)->playlist ());
1793                 if (!pl) {
1794                         continue;
1795                 }
1796                 RouteUI *rui = dynamic_cast<RouteUI *> (*i);
1797                 if (!pl || !rui) {
1798                         continue;
1799                 }
1800                 ag.analyze_range (rui->route (), pl, ts);
1801         }
1802         spd.hide();
1803         if (!ag.canceled ()) {
1804                 ExportReport er (_("Audio Report/Analysis"), ag.results ());
1805                 er.run();
1806         }
1807 }
1808
1809 void
1810 Editor::spectral_analyze_region_selection ()
1811 {
1812         if (analysis_window == 0) {
1813                 analysis_window = new AnalysisWindow();
1814
1815                 if (_session != 0)
1816                         analysis_window->set_session(_session);
1817
1818                 analysis_window->show_all();
1819         }
1820
1821         analysis_window->set_regionmode();
1822         analysis_window->analyze();
1823
1824         analysis_window->present();
1825 }
1826
1827 void
1828 Editor::spectral_analyze_range_selection()
1829 {
1830         if (analysis_window == 0) {
1831                 analysis_window = new AnalysisWindow();
1832
1833                 if (_session != 0)
1834                         analysis_window->set_session(_session);
1835
1836                 analysis_window->show_all();
1837         }
1838
1839         analysis_window->set_rangemode();
1840         analysis_window->analyze();
1841
1842         analysis_window->present();
1843 }
1844
1845 Menu*
1846 Editor::build_track_selection_context_menu ()
1847 {
1848         using namespace Menu_Helpers;
1849         MenuList& edit_items  = track_selection_context_menu.items();
1850         edit_items.clear ();
1851
1852         add_selection_context_items (edit_items);
1853         // edit_items.push_back (SeparatorElem());
1854         // add_dstream_context_items (edit_items);
1855
1856         return &track_selection_context_menu;
1857 }
1858
1859 void
1860 Editor::add_region_context_items (Menu_Helpers::MenuList& edit_items, boost::shared_ptr<Track> track)
1861 {
1862         using namespace Menu_Helpers;
1863
1864         /* OK, stick the region submenu at the top of the list, and then add
1865            the standard items.
1866         */
1867
1868         RegionSelection rs = get_regions_from_selection_and_entered ();
1869
1870         string menu_item_name = (rs.size() == 1) ? rs.front()->region()->name() : _("Selected Regions");
1871
1872         if (_popup_region_menu_item == 0) {
1873                 _popup_region_menu_item = new MenuItem (menu_item_name, false);
1874                 _popup_region_menu_item->set_submenu (*dynamic_cast<Menu*> (ActionManager::get_widget (X_("/PopupRegionMenu"))));
1875                 _popup_region_menu_item->show ();
1876         } else {
1877                 _popup_region_menu_item->set_label (menu_item_name);
1878         }
1879
1880         /* No layering allowed in later is higher layering model */
1881         RefPtr<Action> act = ActionManager::get_action (X_("EditorMenu"), X_("RegionMenuLayering"));
1882         if (act && Config->get_layer_model() == LaterHigher) {
1883                 act->set_sensitive (false);
1884         } else if (act) {
1885                 act->set_sensitive (true);
1886         }
1887
1888         const samplepos_t position = get_preferred_edit_position (EDIT_IGNORE_NONE, true);
1889
1890         edit_items.push_back (*_popup_region_menu_item);
1891         if (Config->get_layer_model() == Manual && track->playlist()->count_regions_at (position) > 1 && (layering_order_editor == 0 || !layering_order_editor->is_visible ())) {
1892                 edit_items.push_back (*manage (_region_actions->get_action ("choose-top-region-context-menu")->create_menu_item ()));
1893         }
1894         edit_items.push_back (SeparatorElem());
1895 }
1896
1897 /** Add context menu items relevant to selection ranges.
1898  * @param edit_items List to add the items to.
1899  */
1900 void
1901 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
1902 {
1903         using namespace Menu_Helpers;
1904
1905         edit_items.push_back (MenuElem (_("Play Range"), sigc::mem_fun(*this, &Editor::play_selection)));
1906         edit_items.push_back (MenuElem (_("Loop Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), true)));
1907
1908         edit_items.push_back (SeparatorElem());
1909         edit_items.push_back (MenuElem (_("Zoom to Range"), sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_selection), Horizontal)));
1910
1911         edit_items.push_back (SeparatorElem());
1912         edit_items.push_back (MenuElem (_("Loudness Analysis"), sigc::mem_fun(*this, &Editor::loudness_analyze_range_selection)));
1913         edit_items.push_back (MenuElem (_("Spectral Analysis"), sigc::mem_fun(*this, &Editor::spectral_analyze_range_selection)));
1914
1915         edit_items.push_back (SeparatorElem());
1916
1917         edit_items.push_back (
1918                 MenuElem (
1919                         _("Move Range Start to Previous Region Boundary"),
1920                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), false, false)
1921                         )
1922                 );
1923
1924         edit_items.push_back (
1925                 MenuElem (
1926                         _("Move Range Start to Next Region Boundary"),
1927                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), false, true)
1928                         )
1929                 );
1930
1931         edit_items.push_back (
1932                 MenuElem (
1933                         _("Move Range End to Previous Region Boundary"),
1934                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), true, false)
1935                         )
1936                 );
1937
1938         edit_items.push_back (
1939                 MenuElem (
1940                         _("Move Range End to Next Region Boundary"),
1941                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), true, true)
1942                         )
1943                 );
1944
1945         edit_items.push_back (SeparatorElem());
1946         edit_items.push_back (MenuElem (_("Separate"), mem_fun(*this, &Editor::separate_region_from_selection)));
1947         edit_items.push_back (MenuElem (_("Convert to Region in Region List"), sigc::mem_fun(*this, &Editor::new_region_from_selection)));
1948
1949         edit_items.push_back (SeparatorElem());
1950         edit_items.push_back (MenuElem (_("Select All in Range"), sigc::mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
1951
1952         edit_items.push_back (SeparatorElem());
1953         edit_items.push_back (MenuElem (_("Set Loop from Selection"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), false)));
1954         edit_items.push_back (MenuElem (_("Set Punch from Selection"), sigc::mem_fun(*this, &Editor::set_punch_from_selection)));
1955         edit_items.push_back (MenuElem (_("Set Session Start/End from Selection"), sigc::mem_fun(*this, &Editor::set_session_extents_from_selection)));
1956
1957         edit_items.push_back (SeparatorElem());
1958         edit_items.push_back (MenuElem (_("Add Range Markers"), sigc::mem_fun (*this, &Editor::add_location_from_selection)));
1959
1960         edit_items.push_back (SeparatorElem());
1961         edit_items.push_back (MenuElem (_("Crop Region to Range"), sigc::mem_fun(*this, &Editor::crop_region_to_selection)));
1962         edit_items.push_back (MenuElem (_("Duplicate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_range), false)));
1963
1964         edit_items.push_back (SeparatorElem());
1965         edit_items.push_back (MenuElem (_("Consolidate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, false)));
1966         edit_items.push_back (MenuElem (_("Consolidate Range with Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, true)));
1967         edit_items.push_back (MenuElem (_("Bounce Range to Region List"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, false)));
1968         edit_items.push_back (MenuElem (_("Bounce Range to Region List with Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, true)));
1969         edit_items.push_back (MenuElem (_("Export Range..."), sigc::mem_fun(*this, &Editor::export_selection)));
1970         if (ARDOUR_UI::instance()->video_timeline->get_duration() > 0) {
1971                 edit_items.push_back (MenuElem (_("Export Video Range..."), sigc::bind (sigc::mem_fun(*(ARDOUR_UI::instance()), &ARDOUR_UI::export_video), true)));
1972         }
1973 }
1974
1975
1976 void
1977 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
1978 {
1979         using namespace Menu_Helpers;
1980
1981         /* Playback */
1982
1983         Menu *play_menu = manage (new Menu);
1984         MenuList& play_items = play_menu->items();
1985         play_menu->set_name ("ArdourContextMenu");
1986
1987         play_items.push_back (MenuElem (_("Play from Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
1988         play_items.push_back (MenuElem (_("Play from Start"), sigc::mem_fun(*this, &Editor::play_from_start)));
1989         play_items.push_back (MenuElem (_("Play Region"), sigc::mem_fun(*this, &Editor::play_selected_region)));
1990         play_items.push_back (SeparatorElem());
1991         play_items.push_back (MenuElem (_("Loop Region"), sigc::bind (sigc::mem_fun (*this, &Editor::set_loop_from_region), true)));
1992
1993         edit_items.push_back (MenuElem (_("Play"), *play_menu));
1994
1995         /* Selection */
1996
1997         Menu *select_menu = manage (new Menu);
1998         MenuList& select_items = select_menu->items();
1999         select_menu->set_name ("ArdourContextMenu");
2000
2001         select_items.push_back (MenuElem (_("Select All in Track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2002         select_items.push_back (MenuElem (_("Select All Objects"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_objects), Selection::Set)));
2003         select_items.push_back (MenuElem (_("Invert Selection in Track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
2004         select_items.push_back (MenuElem (_("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
2005         select_items.push_back (SeparatorElem());
2006         select_items.push_back (MenuElem (_("Set Range to Loop Range"), sigc::mem_fun(*this, &Editor::set_selection_from_loop)));
2007         select_items.push_back (MenuElem (_("Set Range to Punch Range"), sigc::mem_fun(*this, &Editor::set_selection_from_punch)));
2008         select_items.push_back (MenuElem (_("Set Range to Selected Regions"), sigc::mem_fun(*this, &Editor::set_selection_from_region)));
2009         select_items.push_back (SeparatorElem());
2010         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true, true)));
2011         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false, true)));
2012         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2013         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2014         select_items.push_back (MenuElem (_("Select All Between Playhead and Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), false)));
2015         select_items.push_back (MenuElem (_("Select All Within Playhead and Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), true)));
2016         select_items.push_back (MenuElem (_("Select Range Between Playhead and Edit Point"), sigc::mem_fun(*this, &Editor::select_range_between)));
2017
2018         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2019
2020         /* Cut-n-Paste */
2021
2022         Menu *cutnpaste_menu = manage (new Menu);
2023         MenuList& cutnpaste_items = cutnpaste_menu->items();
2024         cutnpaste_menu->set_name ("ArdourContextMenu");
2025
2026         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
2027         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
2028         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f, true)));
2029
2030         cutnpaste_items.push_back (SeparatorElem());
2031
2032         cutnpaste_items.push_back (MenuElem (_("Align"), sigc::bind (sigc::mem_fun (*this, &Editor::align_regions), ARDOUR::SyncPoint)));
2033         cutnpaste_items.push_back (MenuElem (_("Align Relative"), sigc::bind (sigc::mem_fun (*this, &Editor::align_regions_relative), ARDOUR::SyncPoint)));
2034
2035         edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
2036
2037         /* Adding new material */
2038
2039         edit_items.push_back (SeparatorElem());
2040         edit_items.push_back (MenuElem (_("Insert Selected Region"), sigc::bind (sigc::mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
2041         edit_items.push_back (MenuElem (_("Insert Existing Media"), sigc::bind (sigc::mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
2042
2043         /* Nudge track */
2044
2045         Menu *nudge_menu = manage (new Menu());
2046         MenuList& nudge_items = nudge_menu->items();
2047         nudge_menu->set_name ("ArdourContextMenu");
2048
2049         edit_items.push_back (SeparatorElem());
2050         nudge_items.push_back (MenuElem (_("Nudge Entire Track Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2051         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2052         nudge_items.push_back (MenuElem (_("Nudge Entire Track Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2053         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2054
2055         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2056 }
2057
2058 void
2059 Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
2060 {
2061         using namespace Menu_Helpers;
2062
2063         /* Playback */
2064
2065         Menu *play_menu = manage (new Menu);
2066         MenuList& play_items = play_menu->items();
2067         play_menu->set_name ("ArdourContextMenu");
2068
2069         play_items.push_back (MenuElem (_("Play from Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
2070         play_items.push_back (MenuElem (_("Play from Start"), sigc::mem_fun(*this, &Editor::play_from_start)));
2071         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2072
2073         /* Selection */
2074
2075         Menu *select_menu = manage (new Menu);
2076         MenuList& select_items = select_menu->items();
2077         select_menu->set_name ("ArdourContextMenu");
2078
2079         select_items.push_back (MenuElem (_("Select All in Track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2080         select_items.push_back (MenuElem (_("Select All Objects"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_objects), Selection::Set)));
2081         select_items.push_back (MenuElem (_("Invert Selection in Track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
2082         select_items.push_back (MenuElem (_("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
2083         select_items.push_back (SeparatorElem());
2084         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true, true)));
2085         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false, true)));
2086         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2087         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2088
2089         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2090
2091         /* Cut-n-Paste */
2092
2093         Menu *cutnpaste_menu = manage (new Menu);
2094         MenuList& cutnpaste_items = cutnpaste_menu->items();
2095         cutnpaste_menu->set_name ("ArdourContextMenu");
2096
2097         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
2098         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
2099         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f, true)));
2100
2101         Menu *nudge_menu = manage (new Menu());
2102         MenuList& nudge_items = nudge_menu->items();
2103         nudge_menu->set_name ("ArdourContextMenu");
2104
2105         edit_items.push_back (SeparatorElem());
2106         nudge_items.push_back (MenuElem (_("Nudge Entire Track Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2107         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2108         nudge_items.push_back (MenuElem (_("Nudge Entire Track Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2109         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2110
2111         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2112 }
2113
2114 GridType
2115 Editor::grid_type() const
2116 {
2117         return _grid_type;
2118 }
2119
2120 bool
2121 Editor::grid_musical() const
2122 {
2123         switch (_grid_type) {
2124         case GridTypeBeatDiv32:
2125         case GridTypeBeatDiv28:
2126         case GridTypeBeatDiv24:
2127         case GridTypeBeatDiv20:
2128         case GridTypeBeatDiv16:
2129         case GridTypeBeatDiv14:
2130         case GridTypeBeatDiv12:
2131         case GridTypeBeatDiv10:
2132         case GridTypeBeatDiv8:
2133         case GridTypeBeatDiv7:
2134         case GridTypeBeatDiv6:
2135         case GridTypeBeatDiv5:
2136         case GridTypeBeatDiv4:
2137         case GridTypeBeatDiv3:
2138         case GridTypeBeatDiv2:
2139         case GridTypeBeat:
2140         case GridTypeBar:
2141                 return true;
2142         case GridTypeNone:
2143         case GridTypeSmpte:
2144         case GridTypeMinSec:
2145         case GridTypeSamples:
2146                 return false;
2147         }
2148         return false;
2149 }
2150
2151 bool
2152 Editor::grid_nonmusical() const
2153 {
2154         switch (_grid_type) {
2155         case GridTypeSmpte:
2156         case GridTypeMinSec:
2157         case GridTypeSamples:
2158                 return true;
2159         case GridTypeBeatDiv32:
2160         case GridTypeBeatDiv28:
2161         case GridTypeBeatDiv24:
2162         case GridTypeBeatDiv20:
2163         case GridTypeBeatDiv16:
2164         case GridTypeBeatDiv14:
2165         case GridTypeBeatDiv12:
2166         case GridTypeBeatDiv10:
2167         case GridTypeBeatDiv8:
2168         case GridTypeBeatDiv7:
2169         case GridTypeBeatDiv6:
2170         case GridTypeBeatDiv5:
2171         case GridTypeBeatDiv4:
2172         case GridTypeBeatDiv3:
2173         case GridTypeBeatDiv2:
2174         case GridTypeBeat:
2175         case GridTypeBar:
2176         case GridTypeNone:
2177                 return false;
2178         }
2179         return false;
2180 }
2181 SnapMode
2182 Editor::snap_mode() const
2183 {
2184         return _snap_mode;
2185 }
2186
2187 void
2188 Editor::set_grid_to (GridType gt)
2189 {
2190         if (_grid_type == gt) {  //already set
2191                 return;
2192         }
2193
2194         unsigned int grid_ind = (unsigned int)gt;
2195
2196         if (internal_editing()) {
2197                 internal_grid_type = gt;
2198         } else {
2199                 pre_internal_grid_type = gt;
2200         }
2201
2202         _grid_type = gt;
2203
2204         if (grid_ind > grid_type_strings.size() - 1) {
2205                 grid_ind = 0;
2206                 _grid_type = (GridType)grid_ind;
2207         }
2208
2209         string str = grid_type_strings[grid_ind];
2210
2211         if (str != grid_type_selector.get_text()) {
2212                 grid_type_selector.set_text (str);
2213         }
2214
2215         //show appropriate rulers for this grid setting.  (ToDo:  perhaps make this optional)
2216         //Currently this is 'required' because the RULER calculates the grid_marks which will be used by grid_lines
2217         if ( grid_musical() ) {
2218                 ruler_tempo_action->set_active(true);
2219                 ruler_meter_action->set_active(true);
2220
2221                 ruler_bbt_action->set_active(true);
2222                 ruler_timecode_action->set_active(false);
2223                 ruler_minsec_action->set_active(false);
2224                 ruler_samples_action->set_active(false);
2225         } else if (_grid_type == GridTypeSmpte ) {
2226                 ruler_tempo_action->set_active(false);
2227                 ruler_meter_action->set_active(false);
2228
2229                 ruler_bbt_action->set_active(false);
2230                 ruler_timecode_action->set_active(true);
2231                 ruler_minsec_action->set_active(false);
2232                 ruler_samples_action->set_active(false);
2233         } else if (_grid_type == GridTypeMinSec ) {
2234                 ruler_tempo_action->set_active(false);
2235                 ruler_meter_action->set_active(false);
2236
2237                 ruler_bbt_action->set_active(false);
2238                 ruler_timecode_action->set_active(false);
2239                 ruler_minsec_action->set_active(true);
2240                 ruler_samples_action->set_active(false);
2241         } else if (_grid_type == GridTypeSamples ) {
2242                 ruler_tempo_action->set_active(false);
2243                 ruler_meter_action->set_active(false);
2244
2245                 ruler_bbt_action->set_active(false);
2246                 ruler_timecode_action->set_active(false);
2247                 ruler_minsec_action->set_active(false);
2248                 ruler_samples_action->set_active(true);
2249         }
2250
2251         instant_save ();
2252
2253         if ( grid_musical() ) {
2254                 compute_bbt_ruler_scale (_leftmost_sample, _leftmost_sample + current_page_samples());
2255                 update_tempo_based_rulers ();
2256         }
2257
2258         mark_region_boundary_cache_dirty ();
2259
2260         redisplay_grid (false);
2261
2262         SnapChanged (); /* EMIT SIGNAL */
2263 }
2264
2265 void
2266 Editor::set_snap_mode (SnapMode mode)
2267 {
2268         if (internal_editing()) {
2269                 internal_snap_mode = mode;
2270         } else {
2271                 pre_internal_snap_mode = mode;
2272         }
2273
2274         _snap_mode = mode;
2275
2276         if (_snap_mode == SnapOff ) {
2277                 snap_mode_button.set_active_state (Gtkmm2ext::Off);
2278         } else {
2279                 snap_mode_button.set_active_state (Gtkmm2ext::ExplicitActive);
2280         }
2281
2282         instant_save ();
2283 }
2284
2285 void
2286 Editor::set_edit_point_preference (EditPoint ep, bool force)
2287 {
2288         bool changed = (_edit_point != ep);
2289
2290         _edit_point = ep;
2291         if (Profile->get_mixbus())
2292                 if (ep == EditAtSelectedMarker)
2293                         ep = EditAtPlayhead;
2294
2295         string str = edit_point_strings[(int)ep];
2296         if (str != edit_point_selector.get_text ()) {
2297                 edit_point_selector.set_text (str);
2298         }
2299
2300         update_all_enter_cursors();
2301
2302         if (!force && !changed) {
2303                 return;
2304         }
2305
2306         const char* action=NULL;
2307
2308         switch (_edit_point) {
2309         case EditAtPlayhead:
2310                 action = "edit-at-playhead";
2311                 break;
2312         case EditAtSelectedMarker:
2313                 action = "edit-at-marker";
2314                 break;
2315         case EditAtMouse:
2316                 action = "edit-at-mouse";
2317                 break;
2318         }
2319
2320         Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
2321         if (act) {
2322                 Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
2323         }
2324
2325         samplepos_t foo;
2326         bool in_track_canvas;
2327
2328         if (!mouse_sample (foo, in_track_canvas)) {
2329                 in_track_canvas = false;
2330         }
2331
2332         reset_canvas_action_sensitivity (in_track_canvas);
2333         sensitize_the_right_region_actions (false);
2334
2335         instant_save ();
2336 }
2337
2338 int
2339 Editor::set_state (const XMLNode& node, int version)
2340 {
2341         set_id (node);
2342         PBD::Unwinder<bool> nsi (no_save_instant, true);
2343         bool yn;
2344
2345         Tabbable::set_state (node, version);
2346
2347         samplepos_t ph_pos;
2348         if (_session && node.get_property ("playhead", ph_pos)) {
2349                 if (ph_pos >= 0) {
2350                         playhead_cursor->set_position (ph_pos);
2351                 } else {
2352                         warning << _("Playhead position stored with a negative value - ignored (use zero instead)") << endmsg;
2353                         playhead_cursor->set_position (0);
2354                 }
2355         } else {
2356                 playhead_cursor->set_position (0);
2357         }
2358
2359         node.get_property ("mixer-width", editor_mixer_strip_width);
2360
2361         node.get_property ("zoom-focus", zoom_focus);
2362         zoom_focus_selection_done (zoom_focus);
2363
2364         double z;
2365         if (node.get_property ("zoom", z)) {
2366                 /* older versions of ardour used floating point samples_per_pixel */
2367                 reset_zoom (llrintf (z));
2368         } else {
2369                 reset_zoom (samples_per_pixel);
2370         }
2371
2372         int32_t cnt;
2373         if (node.get_property ("visible-track-count", cnt)) {
2374                 set_visible_track_count (cnt);
2375         }
2376
2377         GridType grid_type;
2378         if (!node.get_property ("grid-type", grid_type)) {
2379                 grid_type = _grid_type;
2380         }
2381         set_grid_to (grid_type);
2382
2383         SnapMode sm;
2384         if (node.get_property ("snap-mode", sm)) {
2385                 snap_mode_selection_done(sm);
2386                 /* set text of Dropdown. in case _snap_mode == SnapOff (default)
2387                  * snap_mode_selection_done() will only mark an already active item as active
2388                  * which does not trigger set_text().
2389                  */
2390                 set_snap_mode (sm);
2391         } else {
2392                 set_snap_mode (_snap_mode);
2393         }
2394
2395         node.get_property ("internal-grid-type", internal_grid_type);
2396         node.get_property ("internal-snap-mode", internal_snap_mode);
2397         node.get_property ("pre-internal-grid-type", pre_internal_grid_type);
2398         node.get_property ("pre-internal-snap-mode", pre_internal_snap_mode);
2399
2400         std::string mm_str;
2401         if (node.get_property ("mouse-mode", mm_str)) {
2402                 MouseMode m = str2mousemode(mm_str);
2403                 set_mouse_mode (m, true);
2404         } else {
2405                 set_mouse_mode (MouseObject, true);
2406         }
2407
2408         samplepos_t lf_pos;
2409         if (node.get_property ("left-frame", lf_pos)) {
2410                 if (lf_pos < 0) {
2411                         lf_pos = 0;
2412                 }
2413                 reset_x_origin (lf_pos);
2414         }
2415
2416         double y_origin;
2417         if (node.get_property ("y-origin", y_origin)) {
2418                 reset_y_origin (y_origin);
2419         }
2420
2421         if (node.get_property ("join-object-range", yn)) {
2422                 RefPtr<Action> act = ActionManager::get_action (X_("MouseMode"), X_("set-mouse-mode-object-range"));
2423                 if (act) {
2424                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2425                         tact->set_active (!yn);
2426                         tact->set_active (yn);
2427                 }
2428                 set_mouse_mode(mouse_mode, true);
2429         }
2430
2431         EditPoint ep;
2432         if (node.get_property ("edit-point", ep)) {
2433                 set_edit_point_preference (ep, true);
2434         } else {
2435                 set_edit_point_preference (_edit_point);
2436         }
2437
2438         if (node.get_property ("follow-playhead", yn)) {
2439                 set_follow_playhead (yn);
2440         }
2441
2442         if (node.get_property ("stationary-playhead", yn)) {
2443                 set_stationary_playhead (yn);
2444         }
2445
2446         RegionListSortType sort_type;
2447         if (node.get_property ("region-list-sort-type", sort_type)) {
2448                 _regions->reset_sort_type (sort_type, true);
2449         }
2450
2451         if (node.get_property ("show-editor-mixer", yn)) {
2452
2453                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2454                 assert (act);
2455
2456                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2457
2458                 /* do it twice to force the change */
2459
2460                 tact->set_active (!yn);
2461                 tact->set_active (yn);
2462         }
2463
2464         if (node.get_property ("show-editor-list", yn)) {
2465
2466                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2467                 assert (act);
2468
2469                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2470
2471                 /* do it twice to force the change */
2472
2473                 tact->set_active (!yn);
2474                 tact->set_active (yn);
2475         }
2476
2477         int32_t el_page;
2478         if (node.get_property (X_("editor-list-page"), el_page)) {
2479                 _the_notebook.set_current_page (el_page);
2480         }
2481
2482         if (node.get_property (X_("show-marker-lines"), yn)) {
2483                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-marker-lines"));
2484                 assert (act);
2485                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
2486
2487                 tact->set_active (!yn);
2488                 tact->set_active (yn);
2489         }
2490
2491         XMLNodeList children = node.children ();
2492         for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
2493                 selection->set_state (**i, Stateful::current_state_version);
2494                 _regions->set_state (**i);
2495                 _locations->set_state (**i);
2496         }
2497
2498         if (node.get_property ("maximised", yn)) {
2499                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Common"), X_("ToggleMaximalEditor"));
2500                 assert (act);
2501                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2502                 bool fs = tact && tact->get_active();
2503                 if (yn ^ fs) {
2504                         ActionManager::do_action ("Common", "ToggleMaximalEditor");
2505                 }
2506         }
2507
2508         samplepos_t nudge_clock_value;
2509         if (node.get_property ("nudge-clock-value", nudge_clock_value)) {
2510                 nudge_clock->set (nudge_clock_value);
2511         } else {
2512                 nudge_clock->set_mode (AudioClock::Timecode);
2513                 nudge_clock->set (_session->sample_rate() * 5, true);
2514         }
2515
2516         {
2517                 /* apply state
2518                  * Not all properties may have been in XML, but
2519                  * those that are linked to a private variable may need changing
2520                  */
2521                 RefPtr<Action> act;
2522
2523                 act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
2524                 yn = _follow_playhead;
2525                 if (act) {
2526                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2527                         if (tact->get_active() != yn) {
2528                                 tact->set_active (yn);
2529                         }
2530                 }
2531
2532                 act = ActionManager::get_action (X_("Editor"), X_("toggle-stationary-playhead"));
2533                 yn = _stationary_playhead;
2534                 if (act) {
2535                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2536                         if (tact->get_active() != yn) {
2537                                 tact->set_active (yn);
2538                         }
2539                 }
2540         }
2541
2542         return LuaInstance::instance()->set_state(node);
2543 }
2544
2545 XMLNode&
2546 Editor::get_state ()
2547 {
2548         XMLNode* node = new XMLNode (X_("Editor"));
2549
2550         node->set_property ("id", id().to_s ());
2551
2552         node->add_child_nocopy (Tabbable::get_state());
2553
2554         node->set_property("edit-horizontal-pane-pos", edit_pane.get_divider ());
2555         node->set_property("notebook-shrunk", _notebook_shrunk);
2556         node->set_property("edit-vertical-pane-pos", editor_summary_pane.get_divider());
2557
2558         maybe_add_mixer_strip_width (*node);
2559
2560         node->set_property ("zoom-focus", zoom_focus);
2561
2562         node->set_property ("zoom", samples_per_pixel);
2563         node->set_property ("grid-type", _grid_type);
2564         node->set_property ("snap-mode", _snap_mode);
2565         node->set_property ("internal-grid-type", internal_grid_type);
2566         node->set_property ("internal-snap-mode", internal_snap_mode);
2567         node->set_property ("pre-internal-grid-type", pre_internal_grid_type);
2568         node->set_property ("pre-internal-snap-mode", pre_internal_snap_mode);
2569         node->set_property ("edit-point", _edit_point);
2570         node->set_property ("visible-track-count", _visible_track_count);
2571
2572         node->set_property ("playhead", playhead_cursor->current_sample ());
2573         node->set_property ("left-frame", _leftmost_sample);
2574         node->set_property ("y-origin", vertical_adjustment.get_value ());
2575
2576         node->set_property ("maximised", _maximised);
2577         node->set_property ("follow-playhead", _follow_playhead);
2578         node->set_property ("stationary-playhead", _stationary_playhead);
2579         node->set_property ("region-list-sort-type", _regions->sort_type ());
2580         node->set_property ("mouse-mode", mouse_mode);
2581         node->set_property ("join-object-range", smart_mode_action->get_active ());
2582
2583         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2584         if (act) {
2585                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2586                 node->set_property (X_("show-editor-mixer"), tact->get_active());
2587         }
2588
2589         act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2590         if (act) {
2591                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2592                 node->set_property (X_("show-editor-list"), tact->get_active());
2593         }
2594
2595         node->set_property (X_("editor-list-page"), _the_notebook.get_current_page ());
2596
2597         if (button_bindings) {
2598                 XMLNode* bb = new XMLNode (X_("Buttons"));
2599                 button_bindings->save (*bb);
2600                 node->add_child_nocopy (*bb);
2601         }
2602
2603         node->set_property (X_("show-marker-lines"), _show_marker_lines);
2604
2605         node->add_child_nocopy (selection->get_state ());
2606         node->add_child_nocopy (_regions->get_state ());
2607
2608         node->set_property ("nudge-clock-value", nudge_clock->current_duration());
2609
2610         node->add_child_nocopy (LuaInstance::instance()->get_action_state());
2611         node->add_child_nocopy (LuaInstance::instance()->get_hook_state());
2612         node->add_child_nocopy (_locations->get_state ());
2613
2614         return *node;
2615 }
2616
2617 /** if @param trackview_relative_offset is true, @param y y is an offset into the trackview area, in pixel units
2618  *  if @param trackview_relative_offset is false, @param y y is a global canvas *  coordinate, in pixel units
2619  *
2620  *  @return pair: TimeAxisView that y is over, layer index.
2621  *
2622  *  TimeAxisView may be 0.  Layer index is the layer number if the TimeAxisView is valid and is
2623  *  in stacked or expanded region display mode, otherwise 0.
2624  */
2625 std::pair<TimeAxisView *, double>
2626 Editor::trackview_by_y_position (double y, bool trackview_relative_offset) const
2627 {
2628         if (!trackview_relative_offset) {
2629                 y -= _trackview_group->canvas_origin().y;
2630         }
2631
2632         if (y < 0) {
2633                 return std::make_pair ( (TimeAxisView *) 0, 0);
2634         }
2635
2636         for (TrackViewList::const_iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
2637
2638                 std::pair<TimeAxisView*, double> const r = (*iter)->covers_y_position (y);
2639
2640                 if (r.first) {
2641                         return r;
2642                 }
2643         }
2644
2645         return std::make_pair ( (TimeAxisView *) 0, 0);
2646 }
2647
2648 void
2649 Editor::set_snapped_cursor_position (samplepos_t pos)
2650 {
2651         if ( _edit_point == EditAtMouse ) {
2652                 snapped_cursor->set_position(pos);
2653         }
2654 }
2655
2656
2657 /** Snap a position to the grid, if appropriate, taking into account current
2658  *  grid settings and also the state of any snap modifier keys that may be pressed.
2659  *  @param start Position to snap.
2660  *  @param event Event to get current key modifier information from, or 0.
2661  */
2662 void
2663 Editor::snap_to_with_modifier (MusicSample& start, GdkEvent const * event, RoundMode direction, SnapPref pref, bool for_mark)
2664 {
2665         if (!_session || !event) {
2666                 return;
2667         }
2668
2669         if (ArdourKeyboard::indicates_snap (event->button.state)) {
2670                 if (_snap_mode == SnapOff) {
2671                         snap_to_internal (start, direction, pref, for_mark);
2672                 } else {
2673                         start.set (start.sample, 0);
2674                 }
2675         } else {
2676                 if (_snap_mode != SnapOff) {
2677                         snap_to_internal (start, direction, pref, for_mark);
2678                 } else if (ArdourKeyboard::indicates_snap_delta (event->button.state)) {
2679                         /* SnapOff, but we pressed the snap_delta modifier */
2680                         snap_to_internal (start, direction, pref, for_mark);
2681                 } else {
2682                         start.set (start.sample, 0);
2683                 }
2684         }
2685 }
2686
2687 void
2688 Editor::snap_to (MusicSample& start, RoundMode direction, SnapPref pref, bool for_mark, bool ensure_snap)
2689 {
2690         if (!_session || (_snap_mode == SnapOff && !ensure_snap)) {
2691                 start.set (start.sample, 0);
2692                 return;
2693         }
2694
2695         snap_to_internal (start, direction, pref, for_mark, ensure_snap);
2696 }
2697
2698 void
2699 check_best_snap ( samplepos_t presnap, samplepos_t &test, samplepos_t &dist, samplepos_t &best  )
2700 {
2701         samplepos_t diff = abs( test - presnap );
2702         if ( diff < dist ) {
2703                 dist = diff;
2704                 best = test;
2705         }
2706
2707         test = max_samplepos; //reset this so it doesn't get accidentally reused
2708 }
2709
2710 samplepos_t
2711 Editor::snap_to_grid (vector<ArdourCanvas::Ruler::Mark> marks, samplepos_t presnap, RoundMode direction)
2712 {
2713         samplepos_t before;
2714         samplepos_t after;
2715         samplepos_t test;
2716
2717         before = after = max_samplepos;
2718
2719         //get marks to either side of presnap
2720         vector<ArdourCanvas::Ruler::Mark>::const_iterator m = marks.begin();
2721         while ( m != marks.end() && (m->position < presnap) ) {
2722                 ++m;
2723         }
2724
2725         if (m == marks.end ()) {
2726                 /* ran out of marks */
2727                 before = marks.back().position;
2728         }
2729
2730         after = m->position;
2731
2732         if (m != marks.begin ()) {
2733                 --m;
2734                 before = m->position;
2735         }
2736
2737         if (before == max_samplepos && after == max_samplepos) {
2738                 /* No smpte to snap to, so just don't snap */
2739                 return presnap;
2740         } else if (before == max_samplepos) {
2741                 test = after;
2742         } else if (after == max_samplepos) {
2743                 test = before;
2744         } else  {
2745                 if ((direction == RoundUpMaybe || direction == RoundUpAlways))
2746                         test = after;
2747                 else if ((direction == RoundDownMaybe || direction == RoundDownAlways))
2748                         test = before;
2749                 else if (direction ==  0 ) {
2750                         if ((presnap - before) < (after - presnap)) {
2751                                 test = before;
2752                         } else {
2753                                 test = after;
2754                         }
2755                 }
2756         }
2757
2758         return test;
2759 }
2760
2761 samplepos_t
2762 Editor::marker_snap_to_internal (samplepos_t presnap, RoundMode direction)
2763 {
2764         samplepos_t before;
2765         samplepos_t after;
2766         samplepos_t test;
2767
2768         _session->locations()->marks_either_side (presnap, before, after);
2769
2770         if (before == max_samplepos && after == max_samplepos) {
2771                 /* No marks to snap to, so just don't snap */
2772                 return presnap;
2773         } else if (before == max_samplepos) {
2774                 test = after;
2775         } else if (after == max_samplepos) {
2776                 test = before;
2777         } else  {
2778                 if ((direction == RoundUpMaybe || direction == RoundUpAlways)) {
2779                         test = after;
2780                 } else if ((direction == RoundDownMaybe || direction == RoundDownAlways)) {
2781                         test = before;
2782                 } else if (direction ==  0 ) {
2783                         if ((presnap - before) < (after - presnap)) {
2784                                 test = before;
2785                         } else {
2786                                 test = after;
2787                         }
2788                 }
2789         }
2790
2791         return test;
2792 }
2793
2794 void
2795 Editor::snap_to_internal (MusicSample& start, RoundMode direction, SnapPref pref, bool for_mark, bool ensure_snap)
2796 {
2797         const samplepos_t presnap = start.sample;
2798
2799         samplepos_t test = max_samplepos;  //for each snap, we'll use this value
2800         samplepos_t dist = max_samplepos;  //this records the distance of the best snap result we've found so far
2801         samplepos_t best = max_samplepos;  //this records the best snap-result we've found so far
2802
2803         //check snap-to-marker
2804         if ( UIConfiguration::instance().get_snap_to_marks() ) {
2805                 if (for_mark) {
2806                         return;
2807                 }
2808
2809                 test = marker_snap_to_internal ( presnap, direction );
2810                 check_best_snap(presnap, test, dist, best);
2811         }
2812
2813         //check snap-to-region-{start/end/sync}
2814         if ( UIConfiguration::instance().get_snap_to_region_start() || UIConfiguration::instance().get_snap_to_region_end() || UIConfiguration::instance().get_snap_to_region_sync() ) {
2815                 if (!region_boundary_cache.empty()) {
2816
2817                         vector<samplepos_t>::iterator prev = region_boundary_cache.end ();
2818                         vector<samplepos_t>::iterator next = region_boundary_cache.end ();
2819
2820                         if (direction > 0) {
2821                                 next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), presnap);
2822                         } else {
2823                                 next = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), presnap);
2824                         }
2825
2826                         if (next != region_boundary_cache.begin ()) {
2827                                 prev = next;
2828                                 prev--;
2829                         }
2830
2831                         samplepos_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
2832                         samplepos_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
2833
2834                         if (presnap > (p + n) / 2) {
2835                                 test = n;
2836                         } else {
2837                                 test = p;
2838                         }
2839                 }
2840
2841                 check_best_snap(presnap, test, dist, best);
2842         }
2843
2844         //check Grid
2845         if (UIConfiguration::instance().get_snap_to_grid() && (_grid_type != GridTypeNone) ) {
2846
2847                 //if SnapToGrid is selected, the user wants to prioritize the music grid
2848                 //in this case we should reset the best distance, so Grid will prevail
2849                 dist = max_samplepos;
2850
2851                 test = snap_to_grid (grid_marks, presnap, direction);
2852                 check_best_snap(presnap, test, dist, best);
2853         }
2854
2855         //now check "magnetic" state: is the grid within reasonable on-screen distance to trigger a snap?
2856         //this also helps to avoid snapping to somewhere the user can't see.  ( i.e.:  I clicked on a region and it disappeared!! )
2857         //ToDo:  perhaps this should only occur if EditPointMouse?
2858         int snap_threshold_s = pixel_to_sample(UIConfiguration::instance().get_snap_threshold());
2859         if (ensure_snap) {
2860                 start.set (best, 0);
2861                 return;
2862         } else if (presnap > best) {
2863                 if (presnap > (best+ snap_threshold_s)) {
2864                         best = presnap;
2865                 }
2866         } else if (presnap < best) {
2867                 if (presnap < (best - snap_threshold_s)) {
2868                          best = presnap;
2869                 }
2870         }
2871
2872         start.set (best, 0);
2873 }
2874
2875
2876 void
2877 Editor::setup_toolbar ()
2878 {
2879         HBox* mode_box = manage(new HBox);
2880         mode_box->set_border_width (2);
2881         mode_box->set_spacing(2);
2882
2883         HBox* mouse_mode_box = manage (new HBox);
2884         HBox* mouse_mode_hbox = manage (new HBox);
2885         VBox* mouse_mode_vbox = manage (new VBox);
2886         Alignment* mouse_mode_align = manage (new Alignment);
2887
2888         Glib::RefPtr<SizeGroup> mouse_mode_size_group = SizeGroup::create (SIZE_GROUP_VERTICAL);
2889         mouse_mode_size_group->add_widget (smart_mode_button);
2890         mouse_mode_size_group->add_widget (mouse_move_button);
2891         mouse_mode_size_group->add_widget (mouse_cut_button);
2892         mouse_mode_size_group->add_widget (mouse_select_button);
2893         mouse_mode_size_group->add_widget (mouse_timefx_button);
2894         mouse_mode_size_group->add_widget (mouse_audition_button);
2895         mouse_mode_size_group->add_widget (mouse_draw_button);
2896         mouse_mode_size_group->add_widget (mouse_content_button);
2897
2898         if (!Profile->get_mixbus()) {
2899                 mouse_mode_size_group->add_widget (zoom_in_button);
2900                 mouse_mode_size_group->add_widget (zoom_out_button);
2901                 mouse_mode_size_group->add_widget (zoom_out_full_button);
2902                 mouse_mode_size_group->add_widget (zoom_focus_selector);
2903                 mouse_mode_size_group->add_widget (tav_shrink_button);
2904                 mouse_mode_size_group->add_widget (tav_expand_button);
2905         } else {
2906                 mouse_mode_size_group->add_widget (zoom_preset_selector);
2907                 mouse_mode_size_group->add_widget (visible_tracks_selector);
2908         }
2909
2910         mouse_mode_size_group->add_widget (grid_type_selector);
2911         mouse_mode_size_group->add_widget (snap_mode_button);
2912
2913         mouse_mode_size_group->add_widget (edit_point_selector);
2914         mouse_mode_size_group->add_widget (edit_mode_selector);
2915
2916         mouse_mode_size_group->add_widget (*nudge_clock);
2917         mouse_mode_size_group->add_widget (nudge_forward_button);
2918         mouse_mode_size_group->add_widget (nudge_backward_button);
2919
2920         mouse_mode_hbox->set_spacing (2);
2921
2922         if (!ARDOUR::Profile->get_trx()) {
2923                 mouse_mode_hbox->pack_start (smart_mode_button, false, false);
2924         }
2925
2926         mouse_mode_hbox->pack_start (mouse_move_button, false, false);
2927         mouse_mode_hbox->pack_start (mouse_select_button, false, false);
2928
2929         if (!ARDOUR::Profile->get_mixbus()) {
2930                 mouse_mode_hbox->pack_start (mouse_cut_button, false, false);
2931                 mouse_mode_hbox->pack_start (mouse_audition_button, false, false);
2932         }
2933
2934         if (!ARDOUR::Profile->get_trx()) {
2935                 mouse_mode_hbox->pack_start (mouse_timefx_button, false, false);
2936                 mouse_mode_hbox->pack_start (mouse_draw_button, false, false);
2937                 mouse_mode_hbox->pack_start (mouse_content_button, false, false);
2938         }
2939
2940         mouse_mode_vbox->pack_start (*mouse_mode_hbox);
2941
2942         mouse_mode_align->add (*mouse_mode_vbox);
2943         mouse_mode_align->set (0.5, 1.0, 0.0, 0.0);
2944
2945         mouse_mode_box->pack_start (*mouse_mode_align, false, false);
2946
2947         edit_mode_selector.set_name ("mouse mode button");
2948
2949         if (!ARDOUR::Profile->get_trx()) {
2950                 mode_box->pack_start (edit_mode_selector, false, false);
2951         }
2952
2953         mode_box->pack_start (*mouse_mode_box, false, false);
2954
2955         /* Zoom */
2956
2957         _zoom_box.set_spacing (2);
2958         _zoom_box.set_border_width (2);
2959
2960         RefPtr<Action> act;
2961
2962         zoom_preset_selector.set_name ("zoom button");
2963         zoom_preset_selector.set_icon (ArdourIcon::ZoomExpand);
2964
2965         zoom_in_button.set_name ("zoom button");
2966         zoom_in_button.set_icon (ArdourIcon::ZoomIn);
2967         act = ActionManager::get_action (X_("Editor"), X_("temporal-zoom-in"));
2968         zoom_in_button.set_related_action (act);
2969
2970         zoom_out_button.set_name ("zoom button");
2971         zoom_out_button.set_icon (ArdourIcon::ZoomOut);
2972         act = ActionManager::get_action (X_("Editor"), X_("temporal-zoom-out"));
2973         zoom_out_button.set_related_action (act);
2974
2975         zoom_out_full_button.set_name ("zoom button");
2976         zoom_out_full_button.set_icon (ArdourIcon::ZoomFull);
2977         act = ActionManager::get_action (X_("Editor"), X_("zoom-to-session"));
2978         zoom_out_full_button.set_related_action (act);
2979
2980         zoom_focus_selector.set_name ("zoom button");
2981
2982         if (ARDOUR::Profile->get_mixbus()) {
2983                 _zoom_box.pack_start (zoom_preset_selector, false, false);
2984         } else if (ARDOUR::Profile->get_trx()) {
2985                 mode_box->pack_start (zoom_out_button, false, false);
2986                 mode_box->pack_start (zoom_in_button, false, false);
2987         } else {
2988                 _zoom_box.pack_start (zoom_out_button, false, false);
2989                 _zoom_box.pack_start (zoom_in_button, false, false);
2990                 _zoom_box.pack_start (zoom_out_full_button, false, false);
2991                 _zoom_box.pack_start (zoom_focus_selector, false, false);
2992         }
2993
2994         /* Track zoom buttons */
2995         _track_box.set_spacing (2);
2996         _track_box.set_border_width (2);
2997
2998         visible_tracks_selector.set_name ("zoom button");
2999         if (Profile->get_mixbus()) {
3000                 visible_tracks_selector.set_icon (ArdourIcon::TimeAxisExpand);
3001         } else {
3002                 set_size_request_to_display_given_text (visible_tracks_selector, _("All"), 30, 2);
3003         }
3004
3005         tav_expand_button.set_name ("zoom button");
3006         tav_expand_button.set_icon (ArdourIcon::TimeAxisExpand);
3007         act = ActionManager::get_action (X_("Editor"), X_("expand-tracks"));
3008         tav_expand_button.set_related_action (act);
3009
3010         tav_shrink_button.set_name ("zoom button");
3011         tav_shrink_button.set_icon (ArdourIcon::TimeAxisShrink);
3012         act = ActionManager::get_action (X_("Editor"), X_("shrink-tracks"));
3013         tav_shrink_button.set_related_action (act);
3014
3015         if (ARDOUR::Profile->get_mixbus()) {
3016                 _track_box.pack_start (visible_tracks_selector);
3017         } else if (ARDOUR::Profile->get_trx()) {
3018                 _track_box.pack_start (tav_shrink_button);
3019                 _track_box.pack_start (tav_expand_button);
3020         } else {
3021                 _track_box.pack_start (visible_tracks_selector);
3022                 _track_box.pack_start (tav_shrink_button);
3023                 _track_box.pack_start (tav_expand_button);
3024         }
3025
3026         snap_box.set_spacing (2);
3027         snap_box.set_border_width (2);
3028
3029         grid_type_selector.set_name ("mouse mode button");
3030
3031         snap_mode_button.set_name ("mouse mode button");
3032
3033         edit_point_selector.set_name ("mouse mode button");
3034
3035         snap_box.pack_start (snap_mode_button, false, false);
3036         snap_box.pack_start (grid_type_selector, false, false);
3037
3038         /* Edit Point*/
3039         HBox *ep_box = manage (new HBox);
3040         ep_box->set_spacing (2);
3041         ep_box->set_border_width (2);
3042
3043         ep_box->pack_start (edit_point_selector, false, false);
3044
3045         /* Nudge */
3046
3047         HBox *nudge_box = manage (new HBox);
3048         nudge_box->set_spacing (2);
3049         nudge_box->set_border_width (2);
3050
3051         nudge_forward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_forward_release), false);
3052         nudge_backward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_backward_release), false);
3053
3054         nudge_box->pack_start (nudge_backward_button, false, false);
3055         nudge_box->pack_start (nudge_forward_button, false, false);
3056         nudge_box->pack_start (*nudge_clock, false, false);
3057
3058
3059         /* Pack everything in... */
3060
3061         toolbar_hbox.set_spacing (2);
3062         toolbar_hbox.set_border_width (2);
3063
3064         toolbar_hbox.pack_start (*mode_box, false, false);
3065
3066         if (!ARDOUR::Profile->get_trx()) {
3067
3068                 toolbar_hbox.pack_start (*(manage (new ArdourVSpacer ())), false, false, 3);
3069
3070                 toolbar_hbox.pack_start (_zoom_box, false, false);
3071
3072                 toolbar_hbox.pack_start (*(manage (new ArdourVSpacer ())), false, false, 3);
3073
3074                 toolbar_hbox.pack_start (_track_box, false, false);
3075
3076                 toolbar_hbox.pack_start (*(manage (new ArdourVSpacer ())), false, false, 3);
3077
3078                 toolbar_hbox.pack_start (snap_box, false, false);
3079
3080                 toolbar_hbox.pack_start (*(manage (new ArdourVSpacer ())), false, false, 3);
3081
3082                 toolbar_hbox.pack_start (*ep_box, false, false);
3083
3084                 toolbar_hbox.pack_start (*(manage (new ArdourVSpacer ())), false, false, 3);
3085
3086                 toolbar_hbox.pack_start (*nudge_box, false, false);
3087         }
3088
3089         toolbar_hbox.show_all ();
3090 }
3091
3092 void
3093 Editor::build_edit_point_menu ()
3094 {
3095         using namespace Menu_Helpers;
3096
3097         edit_point_selector.AddMenuElem (MenuElem ( edit_point_strings[(int)EditAtPlayhead], sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_selection_done), (EditPoint) EditAtPlayhead)));
3098         if(!Profile->get_mixbus())
3099                 edit_point_selector.AddMenuElem (MenuElem ( edit_point_strings[(int)EditAtSelectedMarker], sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_selection_done), (EditPoint) EditAtSelectedMarker)));
3100         edit_point_selector.AddMenuElem (MenuElem ( edit_point_strings[(int)EditAtMouse], sigc::bind (sigc::mem_fun(*this, &Editor::edit_point_selection_done), (EditPoint) EditAtMouse)));
3101
3102         set_size_request_to_display_given_text (edit_point_selector, edit_point_strings, COMBO_TRIANGLE_WIDTH, 2);
3103 }
3104
3105 void
3106 Editor::build_edit_mode_menu ()
3107 {
3108         using namespace Menu_Helpers;
3109
3110         edit_mode_selector.AddMenuElem (MenuElem ( edit_mode_strings[(int)Slide], sigc::bind (sigc::mem_fun(*this, &Editor::edit_mode_selection_done), (EditMode) Slide)));
3111 //      edit_mode_selector.AddMenuElem (MenuElem ( edit_mode_strings[(int)Splice], sigc::bind (sigc::mem_fun(*this, &Editor::edit_mode_selection_done), (EditMode) Splice)));
3112         edit_mode_selector.AddMenuElem (MenuElem ( edit_mode_strings[(int)Ripple], sigc::bind (sigc::mem_fun(*this, &Editor::edit_mode_selection_done), (EditMode) Ripple)));
3113         edit_mode_selector.AddMenuElem (MenuElem ( edit_mode_strings[(int)Lock], sigc::bind (sigc::mem_fun(*this, &Editor::edit_mode_selection_done), (EditMode)  Lock)));
3114
3115         set_size_request_to_display_given_text (edit_mode_selector, edit_mode_strings, COMBO_TRIANGLE_WIDTH, 2);
3116 }
3117
3118 void
3119 Editor::build_grid_type_menu ()
3120 {
3121         using namespace Menu_Helpers;
3122
3123         //main grid: bars, quarter-notes, etc
3124         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeNone],      sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeNone)));
3125         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeBar],       sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBar)));
3126         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeBeat],      sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeat)));
3127         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeBeatDiv2],  sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv2)));
3128         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeBeatDiv4],  sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv4)));
3129         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeBeatDiv8],  sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv8)));
3130         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeBeatDiv16], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv16)));
3131         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeBeatDiv32], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv32)));
3132
3133         //triplet grid
3134         grid_type_selector.AddMenuElem(SeparatorElem());
3135         Gtk::Menu *_triplet_menu = manage (new Menu);
3136         MenuList& triplet_items (_triplet_menu->items());
3137         {
3138                 triplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv3],  sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv3) ));
3139                 triplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv6],  sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv6) ));
3140                 triplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv12], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv12) ));
3141                 triplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv24], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv24) ));
3142         }
3143         grid_type_selector.AddMenuElem (Menu_Helpers::MenuElem (_("Triplets"), *_triplet_menu));
3144
3145         //quintuplet grid
3146         Gtk::Menu *_quintuplet_menu = manage (new Menu);
3147         MenuList& quintuplet_items (_quintuplet_menu->items());
3148         {
3149                 quintuplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv5],  sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv5) ));
3150                 quintuplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv10], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv10) ));
3151                 quintuplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv20], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv20) ));
3152         }
3153         grid_type_selector.AddMenuElem (Menu_Helpers::MenuElem (_("Quintuplets"), *_quintuplet_menu));
3154
3155         //septuplet grid
3156         Gtk::Menu *_septuplet_menu = manage (new Menu);
3157         MenuList& septuplet_items (_septuplet_menu->items());
3158         {
3159                 septuplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv7],  sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv7) ));
3160                 septuplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv14], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv14) ));
3161                 septuplet_items.push_back( MenuElem( grid_type_strings[(int)GridTypeBeatDiv28], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeBeatDiv28) ));
3162         }
3163         grid_type_selector.AddMenuElem (Menu_Helpers::MenuElem (_("Septuplets"), *_septuplet_menu));
3164
3165         grid_type_selector.AddMenuElem(SeparatorElem());
3166         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeSmpte], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeSmpte)));
3167         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeMinSec], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeMinSec)));
3168         grid_type_selector.AddMenuElem (MenuElem ( grid_type_strings[(int)GridTypeSamples], sigc::bind (sigc::mem_fun(*this, &Editor::grid_type_selection_done), (GridType) GridTypeSamples)));
3169
3170         set_size_request_to_display_given_text (grid_type_selector, "No Grid", COMBO_TRIANGLE_WIDTH, 2);
3171 }
3172
3173 void
3174 Editor::setup_tooltips ()
3175 {
3176         set_tooltip (smart_mode_button, _("Smart Mode (add range functions to Grab Mode)"));
3177         set_tooltip (mouse_move_button, _("Grab Mode (select/move objects)"));
3178         set_tooltip (mouse_cut_button, _("Cut Mode (split regions)"));
3179         set_tooltip (mouse_select_button, _("Range Mode (select time ranges)"));
3180         set_tooltip (mouse_draw_button, _("Draw Mode (draw and edit gain/notes/automation)"));
3181         set_tooltip (mouse_timefx_button, _("Stretch Mode (time-stretch audio and midi regions, preserving pitch)"));
3182         set_tooltip (mouse_audition_button, _("Audition Mode (listen to regions)"));
3183         set_tooltip (mouse_content_button, _("Internal Edit Mode (edit notes and automation points)"));
3184         set_tooltip (*_group_tabs, _("Groups: click to (de)activate\nContext-click for other operations"));
3185         set_tooltip (nudge_forward_button, _("Nudge Region/Selection Later"));
3186         set_tooltip (nudge_backward_button, _("Nudge Region/Selection Earlier"));
3187         set_tooltip (zoom_in_button, _("Zoom In"));
3188         set_tooltip (zoom_out_button, _("Zoom Out"));
3189         set_tooltip (zoom_preset_selector, _("Zoom to Time Scale"));
3190         set_tooltip (zoom_out_full_button, _("Zoom to Session"));
3191         set_tooltip (zoom_focus_selector, _("Zoom Focus"));
3192         set_tooltip (tav_expand_button, _("Expand Tracks"));
3193         set_tooltip (tav_shrink_button, _("Shrink Tracks"));
3194         set_tooltip (visible_tracks_selector, _("Number of visible tracks"));
3195         set_tooltip (grid_type_selector, _("Grid Mode"));
3196         set_tooltip (snap_mode_button, _("Snap Mode\n\nRight-click to visit Snap preferences."));
3197         set_tooltip (edit_point_selector, _("Edit Point"));
3198         set_tooltip (edit_mode_selector, _("Edit Mode"));
3199         set_tooltip (nudge_clock, _("Nudge Clock\n(controls distance used to nudge regions and selections)"));
3200 }
3201
3202 int
3203 Editor::convert_drop_to_paths (
3204                 vector<string>&                paths,
3205                 const RefPtr<Gdk::DragContext>& /*context*/,
3206                 gint                            /*x*/,
3207                 gint                            /*y*/,
3208                 const SelectionData&            data,
3209                 guint                           /*info*/,
3210                 guint                           /*time*/)
3211 {
3212         if (_session == 0) {
3213                 return -1;
3214         }
3215
3216         vector<string> uris = data.get_uris();
3217
3218         if (uris.empty()) {
3219
3220                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
3221                    are actually URI lists. So do it by hand.
3222                 */
3223
3224                 if (data.get_target() != "text/plain") {
3225                         return -1;
3226                 }
3227
3228                 /* Parse the "uri-list" format that Nautilus provides,
3229                    where each pathname is delimited by \r\n.
3230
3231                    THERE MAY BE NO NULL TERMINATING CHAR!!!
3232                 */
3233
3234                 string txt = data.get_text();
3235                 char* p;
3236                 const char* q;
3237
3238                 p = (char *) malloc (txt.length() + 1);
3239                 txt.copy (p, txt.length(), 0);
3240                 p[txt.length()] = '\0';
3241
3242                 while (p)
3243                 {
3244                         if (*p != '#')
3245                         {
3246                                 while (g_ascii_isspace (*p))
3247                                         p++;
3248
3249                                 q = p;
3250                                 while (*q && (*q != '\n') && (*q != '\r')) {
3251                                         q++;
3252                                 }
3253
3254                                 if (q > p)
3255                                 {
3256                                         q--;
3257                                         while (q > p && g_ascii_isspace (*q))
3258                                                 q--;
3259
3260                                         if (q > p)
3261                                         {
3262                                                 uris.push_back (string (p, q - p + 1));
3263                                         }
3264                                 }
3265                         }
3266                         p = strchr (p, '\n');
3267                         if (p)
3268                                 p++;
3269                 }
3270
3271                 free ((void*)p);
3272
3273                 if (uris.empty()) {
3274                         return -1;
3275                 }
3276         }
3277
3278         for (vector<string>::iterator i = uris.begin(); i != uris.end(); ++i) {
3279                 if ((*i).substr (0,7) == "file://") {
3280                         paths.push_back (Glib::filename_from_uri (*i));
3281                 }
3282         }
3283
3284         return 0;
3285 }
3286
3287 void
3288 Editor::new_tempo_section ()
3289 {
3290 }
3291
3292 void
3293 Editor::map_transport_state ()
3294 {
3295         ENSURE_GUI_THREAD (*this, &Editor::map_transport_state);
3296
3297         if (_session && _session->transport_stopped()) {
3298                 have_pending_keyboard_selection = false;
3299         }
3300
3301         update_loop_range_view ();
3302 }
3303
3304 void
3305 Editor::transport_looped ()
3306 {
3307         /* reset Playhead position interpolation.
3308          * see Editor::super_rapid_screen_update
3309          */
3310         _last_update_time = 0;
3311 }
3312
3313 /* UNDO/REDO */
3314
3315 void
3316 Editor::begin_selection_op_history ()
3317 {
3318         selection_op_cmd_depth = 0;
3319         selection_op_history_it = 0;
3320
3321         while(!selection_op_history.empty()) {
3322                 delete selection_op_history.front();
3323                 selection_op_history.pop_front();
3324         }
3325
3326         selection_undo_action->set_sensitive (false);
3327         selection_redo_action->set_sensitive (false);
3328         selection_op_history.push_front (&_selection_memento->get_state ());
3329 }
3330
3331 void
3332 Editor::begin_reversible_selection_op (string name)
3333 {
3334         if (_session) {
3335                 //cerr << name << endl;
3336                 /* begin/commit pairs can be nested */
3337                 selection_op_cmd_depth++;
3338         }
3339 }
3340
3341 void
3342 Editor::commit_reversible_selection_op ()
3343 {
3344         if (_session) {
3345                 if (selection_op_cmd_depth == 1) {
3346
3347                         if (selection_op_history_it > 0 && selection_op_history_it < selection_op_history.size()) {
3348                                 /**
3349                                     The user has undone some selection ops and then made a new one,
3350                                     making anything earlier in the list invalid.
3351                                 */
3352
3353                                 list<XMLNode *>::iterator it = selection_op_history.begin();
3354                                 list<XMLNode *>::iterator e_it = it;
3355                                 advance (e_it, selection_op_history_it);
3356
3357                                 for ( ; it != e_it; ++it) {
3358                                         delete *it;
3359                                 }
3360                                 selection_op_history.erase (selection_op_history.begin(), e_it);
3361                         }
3362
3363                         selection_op_history.push_front (&_selection_memento->get_state ());
3364                         selection_op_history_it = 0;
3365
3366                         selection_undo_action->set_sensitive (true);
3367                         selection_redo_action->set_sensitive (false);
3368                 }
3369
3370                 if (selection_op_cmd_depth > 0) {
3371                         selection_op_cmd_depth--;
3372                 }
3373         }
3374 }
3375
3376 void
3377 Editor::undo_selection_op ()
3378 {
3379         if (_session) {
3380                 selection_op_history_it++;
3381                 uint32_t n = 0;
3382                 for (std::list<XMLNode *>::iterator i = selection_op_history.begin(); i != selection_op_history.end(); ++i) {
3383                         if (n == selection_op_history_it) {
3384                                 _selection_memento->set_state (*(*i), Stateful::current_state_version);
3385                                 selection_redo_action->set_sensitive (true);
3386                         }
3387                         ++n;
3388                 }
3389                 /* is there an earlier entry? */
3390                 if ((selection_op_history_it + 1) >= selection_op_history.size()) {
3391                         selection_undo_action->set_sensitive (false);
3392                 }
3393         }
3394 }
3395
3396 void
3397 Editor::redo_selection_op ()
3398 {
3399         if (_session) {
3400                 if (selection_op_history_it > 0) {
3401                         selection_op_history_it--;
3402                 }
3403                 uint32_t n = 0;
3404                 for (std::list<XMLNode *>::iterator i = selection_op_history.begin(); i != selection_op_history.end(); ++i) {
3405                         if (n == selection_op_history_it) {
3406                                 _selection_memento->set_state (*(*i), Stateful::current_state_version);
3407                                 selection_undo_action->set_sensitive (true);
3408                         }
3409                         ++n;
3410                 }
3411
3412                 if (selection_op_history_it == 0) {
3413                         selection_redo_action->set_sensitive (false);
3414                 }
3415         }
3416 }
3417
3418 void
3419 Editor::begin_reversible_command (string name)
3420 {
3421         if (_session) {
3422                 before.push_back (&_selection_memento->get_state ());
3423                 _session->begin_reversible_command (name);
3424         }
3425 }
3426
3427 void
3428 Editor::begin_reversible_command (GQuark q)
3429 {
3430         if (_session) {
3431                 before.push_back (&_selection_memento->get_state ());
3432                 _session->begin_reversible_command (q);
3433         }
3434 }
3435
3436 void
3437 Editor::abort_reversible_command ()
3438 {
3439         if (_session) {
3440                 while(!before.empty()) {
3441                         delete before.front();
3442                         before.pop_front();
3443                 }
3444                 _session->abort_reversible_command ();
3445         }
3446 }
3447
3448 void
3449 Editor::commit_reversible_command ()
3450 {
3451         if (_session) {
3452                 if (before.size() == 1) {
3453                         _session->add_command (new MementoCommand<SelectionMemento>(*(_selection_memento), before.front(), &_selection_memento->get_state ()));
3454                         redo_action->set_sensitive(false);
3455                         undo_action->set_sensitive(true);
3456                         begin_selection_op_history ();
3457                 }
3458
3459                 if (before.empty()) {
3460                         cerr << "Please call begin_reversible_command() before commit_reversible_command()." << endl;
3461                 } else {
3462                         before.pop_back();
3463                 }
3464
3465                 _session->commit_reversible_command ();
3466         }
3467 }
3468
3469 void
3470 Editor::history_changed ()
3471 {
3472         string label;
3473
3474         if (undo_action && _session) {
3475                 if (_session->undo_depth() == 0) {
3476                         label = S_("Command|Undo");
3477                 } else {
3478                         label = string_compose(S_("Command|Undo (%1)"), _session->next_undo());
3479                 }
3480                 undo_action->property_label() = label;
3481         }
3482
3483         if (redo_action && _session) {
3484                 if (_session->redo_depth() == 0) {
3485                         label = _("Redo");
3486                         redo_action->set_sensitive (false);
3487                 } else {
3488                         label = string_compose(_("Redo (%1)"), _session->next_redo());
3489                         redo_action->set_sensitive (true);
3490                 }
3491                 redo_action->property_label() = label;
3492         }
3493 }
3494
3495 void
3496 Editor::duplicate_range (bool with_dialog)
3497 {
3498         float times = 1.0f;
3499
3500         RegionSelection rs = get_regions_from_selection_and_entered ();
3501
3502         if ( selection->time.length() == 0 && rs.empty()) {
3503                 return;
3504         }
3505
3506         if (with_dialog) {
3507
3508                 ArdourDialog win (_("Duplicate"));
3509                 Label label (_("Number of duplications:"));
3510                 Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
3511                 SpinButton spinner (adjustment, 0.0, 1);
3512                 HBox hbox;
3513
3514                 win.get_vbox()->set_spacing (12);
3515                 win.get_vbox()->pack_start (hbox);
3516                 hbox.set_border_width (6);
3517                 hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
3518
3519                 /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
3520                    place, visually. so do this by hand.
3521                 */
3522
3523                 hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
3524                 spinner.signal_activate().connect (sigc::bind (sigc::mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
3525                 spinner.grab_focus();
3526
3527                 hbox.show ();
3528                 label.show ();
3529                 spinner.show ();
3530
3531                 win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3532                 win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
3533                 win.set_default_response (RESPONSE_ACCEPT);
3534
3535                 spinner.grab_focus ();
3536
3537                 switch (win.run ()) {
3538                 case RESPONSE_ACCEPT:
3539                         break;
3540                 default:
3541                         return;
3542                 }
3543
3544                 times = adjustment.get_value();
3545         }
3546
3547         if ((current_mouse_mode() == MouseRange)) {
3548                 if (selection->time.length()) {
3549                         duplicate_selection (times);
3550                 }
3551         } else if (get_smart_mode()) {
3552                 if (selection->time.length()) {
3553                         duplicate_selection (times);
3554                 } else
3555                         duplicate_some_regions (rs, times);
3556         } else {
3557                 duplicate_some_regions (rs, times);
3558         }
3559 }
3560
3561 void
3562 Editor::set_edit_mode (EditMode m)
3563 {
3564         Config->set_edit_mode (m);
3565 }
3566
3567 void
3568 Editor::cycle_edit_mode ()
3569 {
3570         switch (Config->get_edit_mode()) {
3571         case Slide:
3572                 Config->set_edit_mode (Ripple);
3573                 break;
3574         case Splice:
3575         case Ripple:
3576                 Config->set_edit_mode (Lock);
3577                 break;
3578         case Lock:
3579                 Config->set_edit_mode (Slide);
3580                 break;
3581         }
3582 }
3583
3584 void
3585 Editor::edit_mode_selection_done ( EditMode m )
3586 {
3587         Config->set_edit_mode ( m );
3588 }
3589
3590 void
3591 Editor::grid_type_selection_done (GridType gridtype)
3592 {
3593         RefPtr<RadioAction> ract = grid_type_action (gridtype);
3594         if (ract) {
3595                 ract->set_active ();
3596         }
3597 }
3598
3599 void
3600 Editor::snap_mode_selection_done (SnapMode mode)
3601 {
3602         RefPtr<RadioAction> ract = snap_mode_action (mode);
3603
3604         if (ract) {
3605                 ract->set_active (true);
3606         }
3607 }
3608
3609 void
3610 Editor::cycle_edit_point (bool with_marker)
3611 {
3612         if(Profile->get_mixbus())
3613                 with_marker = false;
3614
3615         switch (_edit_point) {
3616         case EditAtMouse:
3617                 set_edit_point_preference (EditAtPlayhead);
3618                 break;
3619         case EditAtPlayhead:
3620                 if (with_marker) {
3621                         set_edit_point_preference (EditAtSelectedMarker);
3622                 } else {
3623                         set_edit_point_preference (EditAtMouse);
3624                 }
3625                 break;
3626         case EditAtSelectedMarker:
3627                 set_edit_point_preference (EditAtMouse);
3628                 break;
3629         }
3630 }
3631
3632 void
3633 Editor::edit_point_selection_done (EditPoint ep)
3634 {
3635         set_edit_point_preference ( ep );
3636 }
3637
3638 void
3639 Editor::build_zoom_focus_menu ()
3640 {
3641         using namespace Menu_Helpers;
3642
3643         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusLeft], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusLeft)));
3644         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusRight], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusRight)));
3645         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusCenter], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusCenter)));
3646         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusPlayhead], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusPlayhead)));
3647         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusMouse], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusMouse)));
3648         zoom_focus_selector.AddMenuElem (MenuElem ( zoom_focus_strings[(int)ZoomFocusEdit], sigc::bind (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done), (ZoomFocus) ZoomFocusEdit)));
3649
3650         set_size_request_to_display_given_text (zoom_focus_selector, zoom_focus_strings, COMBO_TRIANGLE_WIDTH, 2);
3651 }
3652
3653 void
3654 Editor::zoom_focus_selection_done ( ZoomFocus f )
3655 {
3656         RefPtr<RadioAction> ract = zoom_focus_action (f);
3657         if (ract) {
3658                 ract->set_active ();
3659         }
3660 }
3661
3662 void
3663 Editor::build_track_count_menu ()
3664 {
3665         using namespace Menu_Helpers;
3666
3667         if (!Profile->get_mixbus()) {
3668                 visible_tracks_selector.AddMenuElem (MenuElem (X_("1"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 1)));
3669                 visible_tracks_selector.AddMenuElem (MenuElem (X_("2"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 2)));
3670                 visible_tracks_selector.AddMenuElem (MenuElem (X_("3"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 3)));
3671                 visible_tracks_selector.AddMenuElem (MenuElem (X_("4"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 4)));
3672                 visible_tracks_selector.AddMenuElem (MenuElem (X_("8"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 8)));
3673                 visible_tracks_selector.AddMenuElem (MenuElem (X_("12"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 12)));
3674                 visible_tracks_selector.AddMenuElem (MenuElem (X_("16"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 16)));
3675                 visible_tracks_selector.AddMenuElem (MenuElem (X_("20"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 20)));
3676                 visible_tracks_selector.AddMenuElem (MenuElem (X_("24"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 24)));
3677                 visible_tracks_selector.AddMenuElem (MenuElem (X_("32"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 32)));
3678                 visible_tracks_selector.AddMenuElem (MenuElem (X_("64"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 64)));
3679                 visible_tracks_selector.AddMenuElem (MenuElem (_("Selection"), sigc::mem_fun(*this, &Editor::fit_selection)));
3680                 visible_tracks_selector.AddMenuElem (MenuElem (_("All"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 0)));
3681         } else {
3682                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 1 track"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 1)));
3683                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 2 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 2)));
3684                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 4 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 4)));
3685                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 8 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 8)));
3686                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 16 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 16)));
3687                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 24 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 24)));
3688                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 32 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 32)));
3689                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit 48 tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 48)));
3690                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit All tracks"), sigc::bind (sigc::mem_fun(*this, &Editor::set_visible_track_count), 0)));
3691                 visible_tracks_selector.AddMenuElem (MenuElem (_("Fit Selection"), sigc::mem_fun(*this, &Editor::fit_selection)));
3692
3693                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 10 ms"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 10)));
3694                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 100 ms"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 100)));
3695                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 1 sec"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 1 * 1000)));
3696                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 10 sec"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 10 * 1000)));
3697                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 1 min"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 60 * 1000)));
3698                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 10 min"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 10 * 60 * 1000)));
3699                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 1 hour"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 60 * 60 * 1000)));
3700                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 8 hours"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 8 * 60 * 60 * 1000)));
3701                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to 24 hours"), sigc::bind (sigc::mem_fun(*this, &Editor::set_zoom_preset), 24 * 60 * 60 * 1000)));
3702                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to Session"), sigc::mem_fun(*this, &Editor::temporal_zoom_session)));
3703                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to Extents"), sigc::mem_fun(*this, &Editor::temporal_zoom_extents)));
3704                 zoom_preset_selector.AddMenuElem (MenuElem (_("Zoom to Range/Region Selection"), sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_selection), Horizontal)));
3705         }
3706 }
3707
3708 void
3709 Editor::set_zoom_preset (int64_t ms)
3710 {
3711         if ( ms <= 0 ) {
3712                 temporal_zoom_session();
3713                 return;
3714         }
3715
3716         ARDOUR::samplecnt_t const sample_rate = ARDOUR::AudioEngine::instance()->sample_rate();
3717         temporal_zoom( (sample_rate * ms / 1000) / _visible_canvas_width );
3718 }
3719
3720 void
3721 Editor::set_visible_track_count (int32_t n)
3722 {
3723         _visible_track_count = n;
3724
3725         /* if the canvas hasn't really been allocated any size yet, just
3726            record the desired number of visible tracks and return. when canvas
3727            allocation happens, we will get called again and then we can do the
3728            real work.
3729         */
3730
3731         if (_visible_canvas_height <= 1) {
3732                 return;
3733         }
3734
3735         int h;
3736         string str;
3737         DisplaySuspender ds;
3738
3739         if (_visible_track_count > 0) {
3740                 h = trackviews_height() / _visible_track_count;
3741                 std::ostringstream s;
3742                 s << _visible_track_count;
3743                 str = s.str();
3744         } else if (_visible_track_count == 0) {
3745                 uint32_t n = 0;
3746                 for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
3747                         if ((*i)->marked_for_display()) {
3748                                 ++n;
3749                                 TimeAxisView::Children cl ((*i)->get_child_list ());
3750                                 for (TimeAxisView::Children::const_iterator j = cl.begin(); j != cl.end(); ++j) {
3751                                         if ((*j)->marked_for_display()) {
3752                                                 ++n;
3753                                         }
3754                                 }
3755                         }
3756                 }
3757                 if (n == 0) {
3758                         visible_tracks_selector.set_text (X_("*"));
3759                         return;
3760                 }
3761                 h = trackviews_height() / n;
3762                 str = _("All");
3763         } else {
3764                 /* negative value means that the visible track count has
3765                    been overridden by explicit track height changes.
3766                 */
3767                 visible_tracks_selector.set_text (X_("*"));
3768                 return;
3769         }
3770
3771         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3772                 (*i)->set_height (h, TimeAxisView::HeightPerLane);
3773         }
3774
3775         if (str != visible_tracks_selector.get_text()) {
3776                 visible_tracks_selector.set_text (str);
3777         }
3778 }
3779
3780 void
3781 Editor::override_visible_track_count ()
3782 {
3783         _visible_track_count = -1;
3784         visible_tracks_selector.set_text ( _("*") );
3785 }
3786
3787 bool
3788 Editor::edit_controls_button_release (GdkEventButton* ev)
3789 {
3790         if (Keyboard::is_context_menu_event (ev)) {
3791                 ARDOUR_UI::instance()->add_route ();
3792         } else if (ev->button == 1) {
3793                 selection->clear_tracks ();
3794         }
3795
3796         return true;
3797 }
3798
3799 bool
3800 Editor::mouse_select_button_release (GdkEventButton* ev)
3801 {
3802         /* this handles just right-clicks */
3803
3804         if (ev->button != 3) {
3805                 return false;
3806         }
3807
3808         return true;
3809 }
3810
3811 void
3812 Editor::set_zoom_focus (ZoomFocus f)
3813 {
3814         string str = zoom_focus_strings[(int)f];
3815
3816         if (str != zoom_focus_selector.get_text()) {
3817                 zoom_focus_selector.set_text (str);
3818         }
3819
3820         if (zoom_focus != f) {
3821                 zoom_focus = f;
3822                 instant_save ();
3823         }
3824 }
3825
3826 void
3827 Editor::cycle_zoom_focus ()
3828 {
3829         switch (zoom_focus) {
3830         case ZoomFocusLeft:
3831                 set_zoom_focus (ZoomFocusRight);
3832                 break;
3833         case ZoomFocusRight:
3834                 set_zoom_focus (ZoomFocusCenter);
3835                 break;
3836         case ZoomFocusCenter:
3837                 set_zoom_focus (ZoomFocusPlayhead);
3838                 break;
3839         case ZoomFocusPlayhead:
3840                 set_zoom_focus (ZoomFocusMouse);
3841                 break;
3842         case ZoomFocusMouse:
3843                 set_zoom_focus (ZoomFocusEdit);
3844                 break;
3845         case ZoomFocusEdit:
3846                 set_zoom_focus (ZoomFocusLeft);
3847                 break;
3848         }
3849 }
3850
3851 void
3852 Editor::update_grid ()
3853 {
3854         if ( grid_musical() ) {
3855                 std::vector<TempoMap::BBTPoint> grid;
3856                 if (bbt_ruler_scale != bbt_show_many) {
3857                         compute_current_bbt_points (grid, _leftmost_sample, _leftmost_sample + current_page_samples());
3858                 }
3859                 maybe_draw_grid_lines ();
3860         } else if ( grid_nonmusical() ) {
3861                 maybe_draw_grid_lines ();
3862         } else {
3863                 hide_grid_lines ();
3864         }
3865 }
3866
3867 void
3868 Editor::toggle_follow_playhead ()
3869 {
3870         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3871         if (act) {
3872                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3873                 set_follow_playhead (tact->get_active());
3874         }
3875 }
3876
3877 /** @param yn true to follow playhead, otherwise false.
3878  *  @param catch_up true to reset the editor view to show the playhead (if yn == true), otherwise false.
3879  */
3880 void
3881 Editor::set_follow_playhead (bool yn, bool catch_up)
3882 {
3883         if (_follow_playhead != yn) {
3884                 if ((_follow_playhead = yn) == true && catch_up) {
3885                         /* catch up */
3886                         reset_x_origin_to_follow_playhead ();
3887                 }
3888                 instant_save ();
3889         }
3890 }
3891
3892 void
3893 Editor::toggle_stationary_playhead ()
3894 {
3895         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-stationary-playhead"));
3896         if (act) {
3897                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3898                 set_stationary_playhead (tact->get_active());
3899         }
3900 }
3901
3902 void
3903 Editor::set_stationary_playhead (bool yn)
3904 {
3905         if (_stationary_playhead != yn) {
3906                 if ((_stationary_playhead = yn) == true) {
3907                         /* catch up */
3908                         // FIXME need a 3.0 equivalent of this 2.X call
3909                         // update_current_screen ();
3910                 }
3911                 instant_save ();
3912         }
3913 }
3914
3915 PlaylistSelector&
3916 Editor::playlist_selector () const
3917 {
3918         return *_playlist_selector;
3919 }
3920
3921 samplecnt_t
3922 Editor::get_paste_offset (samplepos_t pos, unsigned paste_count, samplecnt_t duration)
3923 {
3924         if (paste_count == 0) {
3925                 /* don't bother calculating an offset that will be zero anyway */
3926                 return 0;
3927         }
3928
3929         /* calculate basic unsnapped multi-paste offset */
3930         samplecnt_t offset = paste_count * duration;
3931
3932         /* snap offset so pos + offset is aligned to the grid */
3933         MusicSample offset_pos (pos + offset, 0);
3934         snap_to(offset_pos, RoundUpMaybe);
3935         offset = offset_pos.sample - pos;
3936
3937         return offset;
3938 }
3939
3940 unsigned
3941 Editor::get_grid_beat_divisions(samplepos_t position)
3942 {
3943         switch (_grid_type) {
3944         case GridTypeBeatDiv32:  return 32;
3945         case GridTypeBeatDiv28:  return 28;
3946         case GridTypeBeatDiv24:  return 24;
3947         case GridTypeBeatDiv20:  return 20;
3948         case GridTypeBeatDiv16:  return 16;
3949         case GridTypeBeatDiv14:  return 14;
3950         case GridTypeBeatDiv12:  return 12;
3951         case GridTypeBeatDiv10:  return 10;
3952         case GridTypeBeatDiv8:   return 8;
3953         case GridTypeBeatDiv7:   return 7;
3954         case GridTypeBeatDiv6:   return 6;
3955         case GridTypeBeatDiv5:   return 5;
3956         case GridTypeBeatDiv4:   return 4;
3957         case GridTypeBeatDiv3:   return 3;
3958         case GridTypeBeatDiv2:   return 2;
3959
3960         case GridTypeNone:       return 0;
3961         case GridTypeSmpte:      return 0;
3962         case GridTypeMinSec:     return 0;
3963         case GridTypeSamples:    return 0;
3964         default:                 return 0;
3965         }
3966         return 0;
3967 }
3968
3969 /** returns the current musical grid divisiions using the supplied modifier mask from a GtkEvent.
3970     if the grid is non-musical, returns 0.
3971     if the grid is snapped to bars, returns -1.
3972     @param event_state the current keyboard modifier mask.
3973 */
3974 int32_t
3975 Editor::get_grid_music_divisions (uint32_t event_state)
3976 {
3977         if (snap_mode() == SnapOff && !ArdourKeyboard::indicates_snap (event_state)) {
3978                 return 0;
3979         }
3980
3981         if (snap_mode() != SnapOff && ArdourKeyboard::indicates_snap (event_state)) {
3982                 return 0;
3983         }
3984
3985         switch (_grid_type) {
3986         case GridTypeBeatDiv32:  return 32;
3987         case GridTypeBeatDiv28:  return 28;
3988         case GridTypeBeatDiv24:  return 24;
3989         case GridTypeBeatDiv20:  return 20;
3990         case GridTypeBeatDiv16:  return 16;
3991         case GridTypeBeatDiv14:  return 14;
3992         case GridTypeBeatDiv12:  return 12;
3993         case GridTypeBeatDiv10:  return 10;
3994         case GridTypeBeatDiv8:   return 8;
3995         case GridTypeBeatDiv7:   return 7;
3996         case GridTypeBeatDiv6:   return 6;
3997         case GridTypeBeatDiv5:   return 5;
3998         case GridTypeBeatDiv4:   return 4;
3999         case GridTypeBeatDiv3:   return 3;
4000         case GridTypeBeatDiv2:   return 2;
4001         case GridTypeBeat:       return 1;
4002         case GridTypeBar :       return -1;
4003
4004         case GridTypeNone:       return 0;
4005         case GridTypeSmpte:      return 0;
4006         case GridTypeMinSec:     return 0;
4007         case GridTypeSamples:    return 0;
4008         }
4009         return 0;
4010 }
4011
4012 Temporal::Beats
4013 Editor::get_grid_type_as_beats (bool& success, samplepos_t position)
4014 {
4015         success = true;
4016
4017         const unsigned divisions = get_grid_beat_divisions(position);
4018         if (divisions) {
4019                 return Temporal::Beats(1.0 / (double)get_grid_beat_divisions(position));
4020         }
4021
4022         switch (_grid_type) {
4023         case GridTypeBeat:
4024                 return Temporal::Beats(4.0 / _session->tempo_map().meter_at_sample (position).note_divisor());
4025         case GridTypeBar:
4026                 if (_session) {
4027                         const Meter& m = _session->tempo_map().meter_at_sample (position);
4028                         return Temporal::Beats((4.0 * m.divisions_per_bar()) / m.note_divisor());
4029                 }
4030                 break;
4031         default:
4032                 success = false;
4033                 break;
4034         }
4035
4036         return Temporal::Beats();
4037 }
4038
4039 samplecnt_t
4040 Editor::get_nudge_distance (samplepos_t pos, samplecnt_t& next)
4041 {
4042         samplecnt_t ret;
4043
4044         ret = nudge_clock->current_duration (pos);
4045         next = ret + 1; /* XXXX fix me */
4046
4047         return ret;
4048 }
4049
4050 int
4051 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
4052 {
4053         ArdourDialog dialog (_("Playlist Deletion"));
4054         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
4055                                         "If it is kept, its audio files will not be cleaned.\n"
4056                                         "If it is deleted, audio files used by it alone will be cleaned."),
4057                                       pl->name()));
4058
4059         dialog.set_position (WIN_POS_CENTER);
4060         dialog.get_vbox()->pack_start (label);
4061
4062         label.show ();
4063
4064         dialog.add_button (_("Delete All Unused"), RESPONSE_YES); // needs clarification. this and all remaining ones
4065         dialog.add_button (_("Delete Playlist"), RESPONSE_ACCEPT);
4066         Button* keep = dialog.add_button (_("Keep Playlist"), RESPONSE_REJECT);
4067         dialog.add_button (_("Keep Remaining"), RESPONSE_NO); // ditto
4068         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
4069
4070         // by default gtk uses the left most button
4071         keep->grab_focus ();
4072
4073         switch (dialog.run ()) {
4074         case RESPONSE_NO:
4075                 /* keep this and all remaining ones */
4076                 return -2;
4077                 break;
4078
4079         case RESPONSE_YES:
4080                 /* delete this and all others */
4081                 return 2;
4082                 break;
4083
4084         case RESPONSE_ACCEPT:
4085                 /* delete the playlist */
4086                 return 1;
4087                 break;
4088
4089         case RESPONSE_REJECT:
4090                 /* keep the playlist */
4091                 return 0;
4092                 break;
4093
4094         default:
4095                 break;
4096         }
4097
4098         return -1;
4099 }
4100
4101 bool
4102 Editor::audio_region_selection_covers (samplepos_t where)
4103 {
4104         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
4105                 if ((*a)->region()->covers (where)) {
4106                         return true;
4107                 }
4108         }
4109
4110         return false;
4111 }
4112
4113 void
4114 Editor::prepare_for_cleanup ()
4115 {
4116         cut_buffer->clear_regions ();
4117         cut_buffer->clear_playlists ();
4118
4119         selection->clear_regions ();
4120         selection->clear_playlists ();
4121
4122         _regions->suspend_redisplay ();
4123 }
4124
4125 void
4126 Editor::finish_cleanup ()
4127 {
4128         _regions->resume_redisplay ();
4129 }
4130
4131 Location*
4132 Editor::transport_loop_location()
4133 {
4134         if (_session) {
4135                 return _session->locations()->auto_loop_location();
4136         } else {
4137                 return 0;
4138         }
4139 }
4140
4141 Location*
4142 Editor::transport_punch_location()
4143 {
4144         if (_session) {
4145                 return _session->locations()->auto_punch_location();
4146         } else {
4147                 return 0;
4148         }
4149 }
4150
4151 bool
4152 Editor::control_layout_scroll (GdkEventScroll* ev)
4153 {
4154         /* Just forward to the normal canvas scroll method. The coordinate
4155            systems are different but since the canvas is always larger than the
4156            track headers, and aligned with the trackview area, this will work.
4157
4158            In the not too distant future this layout is going away anyway and
4159            headers will be on the canvas.
4160         */
4161         return canvas_scroll_event (ev, false);
4162 }
4163
4164 void
4165 Editor::session_state_saved (string)
4166 {
4167         update_title ();
4168         _snapshots->redisplay ();
4169 }
4170
4171 void
4172 Editor::maximise_editing_space ()
4173 {
4174         if (_maximised) {
4175                 return;
4176         }
4177
4178         Gtk::Window* toplevel = current_toplevel();
4179
4180         if (toplevel) {
4181                 toplevel->fullscreen ();
4182                 _maximised = true;
4183         }
4184 }
4185
4186 void
4187 Editor::restore_editing_space ()
4188 {
4189         if (!_maximised) {
4190                 return;
4191         }
4192
4193         Gtk::Window* toplevel = current_toplevel();
4194
4195         if (toplevel) {
4196                 toplevel->unfullscreen();
4197                 _maximised = false;
4198         }
4199 }
4200
4201 /**
4202  *  Make new playlists for a given track and also any others that belong
4203  *  to the same active route group with the `select' property.
4204  *  @param v Track.
4205  */
4206
4207 void
4208 Editor::new_playlists (TimeAxisView* v)
4209 {
4210         begin_reversible_command (_("new playlists"));
4211         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4212         _session->playlists->get (playlists);
4213         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, ARDOUR::Properties::group_select.property_id);
4214         commit_reversible_command ();
4215 }
4216
4217 /**
4218  *  Use a copy of the current playlist for a given track and also any others that belong
4219  *  to the same active route group with the `select' property.
4220  *  @param v Track.
4221  */
4222
4223 void
4224 Editor::copy_playlists (TimeAxisView* v)
4225 {
4226         begin_reversible_command (_("copy playlists"));
4227         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4228         _session->playlists->get (playlists);
4229         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, ARDOUR::Properties::group_select.property_id);
4230         commit_reversible_command ();
4231 }
4232
4233 /** Clear the current playlist for a given track and also any others that belong
4234  *  to the same active route group with the `select' property.
4235  *  @param v Track.
4236  */
4237
4238 void
4239 Editor::clear_playlists (TimeAxisView* v)
4240 {
4241         begin_reversible_command (_("clear playlists"));
4242         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4243         _session->playlists->get (playlists);
4244         mapover_tracks (sigc::mem_fun (*this, &Editor::mapped_clear_playlist), v, ARDOUR::Properties::group_select.property_id);
4245         commit_reversible_command ();
4246 }
4247
4248 void
4249 Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4250 {
4251         atv.use_new_playlist (sz > 1 ? false : true, playlists, false);
4252 }
4253
4254 void
4255 Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4256 {
4257         atv.use_new_playlist (sz > 1 ? false : true, playlists, true);
4258 }
4259
4260 void
4261 Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t /*sz*/)
4262 {
4263         atv.clear_playlist ();
4264 }
4265
4266 double
4267 Editor::get_y_origin () const
4268 {
4269         return vertical_adjustment.get_value ();
4270 }
4271
4272 /** Queue up a change to the viewport x origin.
4273  *  @param sample New x origin.
4274  */
4275 void
4276 Editor::reset_x_origin (samplepos_t sample)
4277 {
4278         pending_visual_change.add (VisualChange::TimeOrigin);
4279         pending_visual_change.time_origin = sample;
4280         ensure_visual_change_idle_handler ();
4281 }
4282
4283 void
4284 Editor::reset_y_origin (double y)
4285 {
4286         pending_visual_change.add (VisualChange::YOrigin);
4287         pending_visual_change.y_origin = y;
4288         ensure_visual_change_idle_handler ();
4289 }
4290
4291 void
4292 Editor::reset_zoom (samplecnt_t spp)
4293 {
4294         if (spp == samples_per_pixel) {
4295                 return;
4296         }
4297
4298         pending_visual_change.add (VisualChange::ZoomLevel);
4299         pending_visual_change.samples_per_pixel = spp;
4300         ensure_visual_change_idle_handler ();
4301 }
4302
4303 void
4304 Editor::reposition_and_zoom (samplepos_t sample, double fpu)
4305 {
4306         reset_x_origin (sample);
4307         reset_zoom (fpu);
4308
4309         if (!no_save_visual) {
4310                 undo_visual_stack.push_back (current_visual_state(false));
4311         }
4312 }
4313
4314 Editor::VisualState::VisualState (bool with_tracks)
4315         : gui_state (with_tracks ? new GUIObjectState : 0)
4316 {
4317 }
4318
4319 Editor::VisualState::~VisualState ()
4320 {
4321         delete gui_state;
4322 }
4323
4324 Editor::VisualState*
4325 Editor::current_visual_state (bool with_tracks)
4326 {
4327         VisualState* vs = new VisualState (with_tracks);
4328         vs->y_position = vertical_adjustment.get_value();
4329         vs->samples_per_pixel = samples_per_pixel;
4330         vs->_leftmost_sample = _leftmost_sample;
4331         vs->zoom_focus = zoom_focus;
4332
4333         if (with_tracks) {
4334                 vs->gui_state->set_state (ARDOUR_UI::instance()->gui_object_state->get_state());
4335         }
4336
4337         return vs;
4338 }
4339
4340 void
4341 Editor::undo_visual_state ()
4342 {
4343         if (undo_visual_stack.empty()) {
4344                 return;
4345         }
4346
4347         VisualState* vs = undo_visual_stack.back();
4348         undo_visual_stack.pop_back();
4349
4350
4351         redo_visual_stack.push_back (current_visual_state (vs ? vs->gui_state != 0 : false));
4352
4353         if (vs) {
4354                 use_visual_state (*vs);
4355         }
4356 }
4357
4358 void
4359 Editor::redo_visual_state ()
4360 {
4361         if (redo_visual_stack.empty()) {
4362                 return;
4363         }
4364
4365         VisualState* vs = redo_visual_stack.back();
4366         redo_visual_stack.pop_back();
4367
4368         // can 'vs' really be 0? Is there a place that puts NULL pointers onto the stack?
4369         // why do we check here?
4370         undo_visual_stack.push_back (current_visual_state (vs ? (vs->gui_state != 0) : false));
4371
4372         if (vs) {
4373                 use_visual_state (*vs);
4374         }
4375 }
4376
4377 void
4378 Editor::swap_visual_state ()
4379 {
4380         if (undo_visual_stack.empty()) {
4381                 redo_visual_state ();
4382         } else {
4383                 undo_visual_state ();
4384         }
4385 }
4386
4387 void
4388 Editor::use_visual_state (VisualState& vs)
4389 {
4390         PBD::Unwinder<bool> nsv (no_save_visual, true);
4391         DisplaySuspender ds;
4392
4393         vertical_adjustment.set_value (vs.y_position);
4394
4395         set_zoom_focus (vs.zoom_focus);
4396         reposition_and_zoom (vs._leftmost_sample, vs.samples_per_pixel);
4397
4398         if (vs.gui_state) {
4399                 ARDOUR_UI::instance()->gui_object_state->set_state (vs.gui_state->get_state());
4400
4401                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4402                         (*i)->clear_property_cache();
4403                         (*i)->reset_visual_state ();
4404                 }
4405         }
4406
4407         _routes->update_visibility ();
4408 }
4409
4410 /** This is the core function that controls the zoom level of the canvas. It is called
4411  *  whenever one or more calls are made to reset_zoom().  It executes in an idle handler.
4412  *  @param spp new number of samples per pixel
4413  */
4414 void
4415 Editor::set_samples_per_pixel (samplecnt_t spp)
4416 {
4417         if (spp < 1) {
4418                 return;
4419         }
4420
4421         const samplecnt_t three_days = 3 * 24 * 60 * 60 * (_session ? _session->sample_rate() : 48000);
4422         const samplecnt_t lots_of_pixels = 4000;
4423
4424         /* if the zoom level is greater than what you'd get trying to display 3
4425          * days of audio on a really big screen, then it's too big.
4426          */
4427
4428         if (spp * lots_of_pixels > three_days) {
4429                 return;
4430         }
4431
4432         samples_per_pixel = spp;
4433 }
4434
4435 void
4436 Editor::on_samples_per_pixel_changed ()
4437 {
4438         bool const showing_time_selection = selection->time.length() > 0;
4439
4440         if (showing_time_selection && selection->time.start () != selection->time.end_sample ()) {
4441                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4442                         (*i)->reshow_selection (selection->time);
4443                 }
4444         }
4445
4446         ZoomChanged (); /* EMIT_SIGNAL */
4447
4448         ArdourCanvas::GtkCanvasViewport* c;
4449
4450         c = get_track_canvas();
4451         if (c) {
4452                 c->canvas()->zoomed ();
4453         }
4454
4455         if (playhead_cursor) {
4456                 playhead_cursor->set_position (playhead_cursor->current_sample ());
4457         }
4458
4459         refresh_location_display();
4460         _summary->set_overlays_dirty ();
4461
4462         update_marker_labels ();
4463
4464         instant_save ();
4465 }
4466
4467 samplepos_t
4468 Editor::playhead_cursor_sample () const
4469 {
4470         return playhead_cursor->current_sample();
4471 }
4472
4473 void
4474 Editor::queue_visual_videotimeline_update ()
4475 {
4476         pending_visual_change.add (VisualChange::VideoTimeline);
4477         ensure_visual_change_idle_handler ();
4478 }
4479
4480 void
4481 Editor::ensure_visual_change_idle_handler ()
4482 {
4483         if (pending_visual_change.idle_handler_id < 0) {
4484                 // see comment in add_to_idle_resize above.
4485                 pending_visual_change.idle_handler_id = g_idle_add_full (G_PRIORITY_HIGH_IDLE + 10, _idle_visual_changer, this, NULL);
4486                 pending_visual_change.being_handled = false;
4487         }
4488 }
4489
4490 int
4491 Editor::_idle_visual_changer (void* arg)
4492 {
4493         return static_cast<Editor*>(arg)->idle_visual_changer ();
4494 }
4495
4496 void
4497 Editor::pre_render ()
4498 {
4499         visual_change_queued = false;
4500
4501         if (pending_visual_change.pending != 0) {
4502                 ensure_visual_change_idle_handler();
4503         }
4504 }
4505
4506 int
4507 Editor::idle_visual_changer ()
4508 {
4509         pending_visual_change.idle_handler_id = -1;
4510
4511         if (pending_visual_change.pending == 0) {
4512                 return 0;
4513         }
4514
4515         /* set_horizontal_position() below (and maybe other calls) call
4516            gtk_main_iteration(), so it's possible that a signal will be handled
4517            half-way through this method.  If this signal wants an
4518            idle_visual_changer we must schedule another one after this one, so
4519            mark the idle_handler_id as -1 here to allow that.  Also make a note
4520            that we are doing the visual change, so that changes in response to
4521            super-rapid-screen-update can be dropped if we are still processing
4522            the last one.
4523         */
4524
4525         if (visual_change_queued) {
4526                 return 0;
4527         }
4528
4529         pending_visual_change.being_handled = true;
4530
4531         VisualChange vc = pending_visual_change;
4532
4533         pending_visual_change.pending = (VisualChange::Type) 0;
4534
4535         visual_changer (vc);
4536
4537         pending_visual_change.being_handled = false;
4538
4539         visual_change_queued = true;
4540
4541         return 0; /* this is always a one-shot call */
4542 }
4543
4544 void
4545 Editor::visual_changer (const VisualChange& vc)
4546 {
4547         /**
4548          * Changed first so the correct horizontal canvas position is calculated in
4549          * Editor::set_horizontal_position
4550          */
4551         if (vc.pending & VisualChange::ZoomLevel) {
4552                 set_samples_per_pixel (vc.samples_per_pixel);
4553         }
4554
4555         if (vc.pending & VisualChange::TimeOrigin) {
4556                 double new_time_origin = sample_to_pixel_unrounded (vc.time_origin);
4557                 set_horizontal_position (new_time_origin);
4558         }
4559
4560         if (vc.pending & VisualChange::YOrigin) {
4561                 vertical_adjustment.set_value (vc.y_origin);
4562         }
4563
4564         /**
4565          * Now the canvas is in the final state before render the canvas items that
4566          * support the Item::prepare_for_render interface can calculate the correct
4567          * item to visible canvas intersection.
4568          */
4569         if (vc.pending & VisualChange::ZoomLevel) {
4570                 on_samples_per_pixel_changed ();
4571
4572                 compute_fixed_ruler_scale ();
4573
4574                 compute_bbt_ruler_scale (vc.time_origin, pending_visual_change.time_origin + current_page_samples());
4575                 update_tempo_based_rulers ();
4576         }
4577
4578         if (!(vc.pending & VisualChange::ZoomLevel)) {
4579                 /**
4580                  * If the canvas is not being zoomed then the canvas items will not change
4581                  * and cause Item::prepare_for_render to be called so do it here manually.
4582                  *
4583                  * Not ideal, but I can't think of a better solution atm.
4584                  */
4585                 _track_canvas->prepare_for_render();
4586         }
4587
4588         // If we are only scrolling vertically there is no need to update these
4589         if (vc.pending != VisualChange::YOrigin) {
4590                 update_fixed_rulers ();
4591                 redisplay_grid (true);
4592
4593                 /* video frames & position need to be updated for zoom, horiz-scroll
4594                  * and (explicitly) VisualChange::VideoTimeline.
4595                  */
4596                 update_video_timeline();
4597         }
4598
4599         _summary->set_overlays_dirty ();
4600 }
4601
4602 struct EditorOrderTimeAxisSorter {
4603     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
4604             return a->order () < b->order ();
4605     }
4606 };
4607
4608 void
4609 Editor::sort_track_selection (TrackViewList& sel)
4610 {
4611         EditorOrderTimeAxisSorter cmp;
4612         sel.sort (cmp);
4613 }
4614
4615 samplepos_t
4616 Editor::get_preferred_edit_position (EditIgnoreOption ignore, bool from_context_menu, bool from_outside_canvas)
4617 {
4618         bool ignored;
4619         samplepos_t where = 0;
4620         EditPoint ep = _edit_point;
4621
4622         if (Profile->get_mixbus()) {
4623                 if (ep == EditAtSelectedMarker) {
4624                         ep = EditAtPlayhead;
4625                 }
4626         }
4627
4628         if (from_outside_canvas && (ep == EditAtMouse)) {
4629                 ep = EditAtPlayhead;
4630         } else if (from_context_menu && (ep == EditAtMouse)) {
4631                 return canvas_event_sample (&context_click_event, 0, 0);
4632         }
4633
4634         if (entered_marker) {
4635                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use entered marker @ %1\n", entered_marker->position()));
4636                 return entered_marker->position();
4637         }
4638
4639         if ( (ignore==EDIT_IGNORE_PHEAD) && ep == EditAtPlayhead) {
4640                 ep = EditAtSelectedMarker;
4641         }
4642
4643         if ( (ignore==EDIT_IGNORE_MOUSE) && ep == EditAtMouse) {
4644                 ep = EditAtPlayhead;
4645         }
4646
4647         MusicSample snap_mf (0, 0);
4648
4649         switch (ep) {
4650         case EditAtPlayhead:
4651                 if (_dragging_playhead && _control_scroll_target) {
4652                         where = *_control_scroll_target;
4653                 } else {
4654                         where = _session->audible_sample();
4655                 }
4656                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use playhead @ %1\n", where));
4657                 break;
4658
4659         case EditAtSelectedMarker:
4660                 if (!selection->markers.empty()) {
4661                         bool is_start;
4662                         Location* loc = find_location_from_marker (selection->markers.front(), is_start);
4663                         if (loc) {
4664                                 if (is_start) {
4665                                         where =  loc->start();
4666                                 } else {
4667                                         where = loc->end();
4668                                 }
4669                                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use selected marker @ %1\n", where));
4670                                 break;
4671                         }
4672                 }
4673                 /* fallthru */
4674
4675         default:
4676         case EditAtMouse:
4677                 if (!mouse_sample (where, ignored)) {
4678                         /* XXX not right but what can we do ? */
4679                         return 0;
4680                 }
4681                 snap_mf.sample = where;
4682                 snap_to (snap_mf);
4683                 where = snap_mf.sample;
4684                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use mouse @ %1\n", where));
4685                 break;
4686         }
4687
4688         return where;
4689 }
4690
4691 void
4692 Editor::set_loop_range (samplepos_t start, samplepos_t end, string cmd)
4693 {
4694         if (!_session) return;
4695
4696         begin_reversible_command (cmd);
4697
4698         Location* tll;
4699
4700         if ((tll = transport_loop_location()) == 0) {
4701                 Location* loc = new Location (*_session, start, end, _("Loop"),  Location::IsAutoLoop, get_grid_music_divisions(0));
4702                 XMLNode &before = _session->locations()->get_state();
4703                 _session->locations()->add (loc, true);
4704                 _session->set_auto_loop_location (loc);
4705                 XMLNode &after = _session->locations()->get_state();
4706                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4707         } else {
4708                 XMLNode &before = tll->get_state();
4709                 tll->set_hidden (false, this);
4710                 tll->set (start, end);
4711                 XMLNode &after = tll->get_state();
4712                 _session->add_command (new MementoCommand<Location>(*tll, &before, &after));
4713         }
4714
4715         commit_reversible_command ();
4716 }
4717
4718 void
4719 Editor::set_punch_range (samplepos_t start, samplepos_t end, string cmd)
4720 {
4721         if (!_session) return;
4722
4723         begin_reversible_command (cmd);
4724
4725         Location* tpl;
4726
4727         if ((tpl = transport_punch_location()) == 0) {
4728                 Location* loc = new Location (*_session, start, end, _("Punch"),  Location::IsAutoPunch, get_grid_music_divisions(0));
4729                 XMLNode &before = _session->locations()->get_state();
4730                 _session->locations()->add (loc, true);
4731                 _session->set_auto_punch_location (loc);
4732                 XMLNode &after = _session->locations()->get_state();
4733                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4734         } else {
4735                 XMLNode &before = tpl->get_state();
4736                 tpl->set_hidden (false, this);
4737                 tpl->set (start, end);
4738                 XMLNode &after = tpl->get_state();
4739                 _session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
4740         }
4741
4742         commit_reversible_command ();
4743 }
4744
4745 /** Find regions which exist at a given time, and optionally on a given list of tracks.
4746  *  @param rs List to which found regions are added.
4747  *  @param where Time to look at.
4748  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
4749  */
4750 void
4751 Editor::get_regions_at (RegionSelection& rs, samplepos_t where, const TrackViewList& ts) const
4752 {
4753         const TrackViewList* tracks;
4754
4755         if (ts.empty()) {
4756                 tracks = &track_views;
4757         } else {
4758                 tracks = &ts;
4759         }
4760
4761         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4762
4763                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4764
4765                 if (rtv) {
4766                         boost::shared_ptr<Track> tr;
4767                         boost::shared_ptr<Playlist> pl;
4768
4769                         if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
4770
4771                                 boost::shared_ptr<RegionList> regions = pl->regions_at (where);
4772
4773                                 for (RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4774                                         RegionView* rv = rtv->view()->find_view (*i);
4775                                         if (rv) {
4776                                                 rs.add (rv);
4777                                         }
4778                                 }
4779                         }
4780                 }
4781         }
4782 }
4783
4784 void
4785 Editor::get_regions_after (RegionSelection& rs, samplepos_t where, const TrackViewList& ts) const
4786 {
4787         const TrackViewList* tracks;
4788
4789         if (ts.empty()) {
4790                 tracks = &track_views;
4791         } else {
4792                 tracks = &ts;
4793         }
4794
4795         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4796                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4797                 if (rtv) {
4798                         boost::shared_ptr<Track> tr;
4799                         boost::shared_ptr<Playlist> pl;
4800
4801                         if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
4802
4803                                 boost::shared_ptr<RegionList> regions = pl->regions_touched (where, max_samplepos);
4804
4805                                 for (RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4806
4807                                         RegionView* rv = rtv->view()->find_view (*i);
4808
4809                                         if (rv) {
4810                                                 rs.add (rv);
4811                                         }
4812                                 }
4813                         }
4814                 }
4815         }
4816 }
4817
4818 /** Get regions using the following method:
4819  *
4820  *  Make a region list using:
4821  *   (a) any selected regions
4822  *   (b) the intersection of any selected tracks and the edit point(*)
4823  *   (c) if neither exists, and edit_point == mouse, then whatever region is under the mouse
4824  *
4825  *  (*) NOTE: in this case, if 'No Selection = All Tracks' is active, search all tracks
4826  *
4827  *  Note that we have forced the rule that selected regions and selected tracks are mutually exclusive
4828  */
4829
4830 RegionSelection
4831 Editor::get_regions_from_selection_and_edit_point (EditIgnoreOption ignore, bool from_context_menu, bool from_outside_canvas)
4832 {
4833         RegionSelection regions;
4834
4835         if (_edit_point == EditAtMouse && entered_regionview && selection->tracks.empty() && selection->regions.empty() ) {
4836                 regions.add (entered_regionview);
4837         } else {
4838                 regions = selection->regions;
4839         }
4840
4841         if ( regions.empty() ) {
4842                 TrackViewList tracks = selection->tracks;
4843
4844                 if (!tracks.empty()) {
4845                         /* no region selected or entered, but some selected tracks:
4846                          * act on all regions on the selected tracks at the edit point
4847                          */
4848                         samplepos_t const where = get_preferred_edit_position (ignore, from_context_menu, from_outside_canvas);
4849                         get_regions_at(regions, where, tracks);
4850                 }
4851         }
4852
4853         return regions;
4854 }
4855
4856 /** Get regions using the following method:
4857  *
4858  *  Make a region list using:
4859  *   (a) any selected regions
4860  *   (b) the intersection of any selected tracks and the edit point(*)
4861  *   (c) if neither exists, then whatever region is under the mouse
4862  *
4863  *  (*) NOTE: in this case, if 'No Selection = All Tracks' is active, search all tracks
4864  *
4865  *  Note that we have forced the rule that selected regions and selected tracks are mutually exclusive
4866  */
4867 RegionSelection
4868 Editor::get_regions_from_selection_and_mouse (samplepos_t pos)
4869 {
4870         RegionSelection regions;
4871
4872         if (entered_regionview && selection->tracks.empty() && selection->regions.empty() ) {
4873                 regions.add (entered_regionview);
4874         } else {
4875                 regions = selection->regions;
4876         }
4877
4878         if ( regions.empty() ) {
4879                 TrackViewList tracks = selection->tracks;
4880
4881                 if (!tracks.empty()) {
4882                         /* no region selected or entered, but some selected tracks:
4883                          * act on all regions on the selected tracks at the edit point
4884                          */
4885                         get_regions_at(regions, pos, tracks);
4886                 }
4887         }
4888
4889         return regions;
4890 }
4891
4892 /** Start with regions that are selected, or the entered regionview if none are selected.
4893  *  Then add equivalent regions on tracks in the same active edit-enabled route group as any
4894  *  of the regions that we started with.
4895  */
4896
4897 RegionSelection
4898 Editor::get_regions_from_selection_and_entered () const
4899 {
4900         RegionSelection regions = selection->regions;
4901
4902         if (regions.empty() && entered_regionview) {
4903                 regions.add (entered_regionview);
4904         }
4905
4906         return regions;
4907 }
4908
4909 void
4910 Editor::get_regionviews_by_id (PBD::ID const id, RegionSelection & regions) const
4911 {
4912         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
4913                 RouteTimeAxisView* rtav;
4914
4915                 if ((rtav = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4916                         boost::shared_ptr<Playlist> pl;
4917                         std::vector<boost::shared_ptr<Region> > results;
4918                         boost::shared_ptr<Track> tr;
4919
4920                         if ((tr = rtav->track()) == 0) {
4921                                 /* bus */
4922                                 continue;
4923                         }
4924
4925                         if ((pl = (tr->playlist())) != 0) {
4926                                 boost::shared_ptr<Region> r = pl->region_by_id (id);
4927                                 if (r) {
4928                                         RegionView* rv = rtav->view()->find_view (r);
4929                                         if (rv) {
4930                                                 regions.push_back (rv);
4931                                         }
4932                                 }
4933                         }
4934                 }
4935         }
4936 }
4937
4938 void
4939 Editor::get_per_region_note_selection (list<pair<PBD::ID, set<boost::shared_ptr<Evoral::Note<Temporal::Beats> > > > > &selection) const
4940 {
4941
4942         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
4943                 MidiTimeAxisView* mtav;
4944
4945                 if ((mtav = dynamic_cast<MidiTimeAxisView*> (*i)) != 0) {
4946
4947                         mtav->get_per_region_note_selection (selection);
4948                 }
4949         }
4950
4951 }
4952
4953 void
4954 Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions, bool src_comparison)
4955 {
4956         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4957
4958                 RouteTimeAxisView* tatv;
4959
4960                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4961
4962                         boost::shared_ptr<Playlist> pl;
4963                         vector<boost::shared_ptr<Region> > results;
4964                         RegionView* marv;
4965                         boost::shared_ptr<Track> tr;
4966
4967                         if ((tr = tatv->track()) == 0) {
4968                                 /* bus */
4969                                 continue;
4970                         }
4971
4972                         if ((pl = (tr->playlist())) != 0) {
4973                                 if (src_comparison) {
4974                                         pl->get_source_equivalent_regions (region, results);
4975                                 } else {
4976                                         pl->get_region_list_equivalent_regions (region, results);
4977                                 }
4978                         }
4979
4980                         for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
4981                                 if ((marv = tatv->view()->find_view (*ir)) != 0) {
4982                                         regions.push_back (marv);
4983                                 }
4984                         }
4985
4986                 }
4987         }
4988 }
4989
4990 RegionView*
4991 Editor::regionview_from_region (boost::shared_ptr<Region> region) const
4992 {
4993         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
4994                 RouteTimeAxisView* tatv;
4995                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4996                         if (!tatv->track()) {
4997                                 continue;
4998                         }
4999                         RegionView* marv = tatv->view()->find_view (region);
5000                         if (marv) {
5001                                 return marv;
5002                         }
5003                 }
5004         }
5005         return NULL;
5006 }
5007
5008 RouteTimeAxisView*
5009 Editor::rtav_from_route (boost::shared_ptr<Route> route) const
5010 {
5011         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
5012                 RouteTimeAxisView* rtav;
5013                 if ((rtav = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
5014                         if (rtav->route() == route) {
5015                                 return rtav;
5016                         }
5017                 }
5018         }
5019         return NULL;
5020 }
5021
5022 void
5023 Editor::show_rhythm_ferret ()
5024 {
5025         if (rhythm_ferret == 0) {
5026                 rhythm_ferret = new RhythmFerret(*this);
5027         }
5028
5029         rhythm_ferret->set_session (_session);
5030         rhythm_ferret->show ();
5031         rhythm_ferret->present ();
5032 }
5033
5034 void
5035 Editor::first_idle ()
5036 {
5037         MessageDialog* dialog = 0;
5038
5039         if (track_views.size() > 1) {
5040                 Timers::TimerSuspender t;
5041                 dialog = new MessageDialog (
5042                         string_compose (_("Please wait while %1 loads visual data."), PROGRAM_NAME),
5043                         true
5044                         );
5045                 dialog->present ();
5046                 ARDOUR_UI::instance()->flush_pending (60);
5047         }
5048
5049         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
5050                 (*t)->first_idle();
5051         }
5052
5053         /* now that all regionviews should exist, setup region selection */
5054
5055         RegionSelection rs;
5056
5057         for (list<PBD::ID>::iterator pr = selection->regions.pending.begin (); pr != selection->regions.pending.end (); ++pr) {
5058                 /* this is cumulative: rs is NOT cleared each time */
5059                 get_regionviews_by_id (*pr, rs);
5060         }
5061
5062         selection->set (rs);
5063
5064         // first idle adds route children (automation tracks), so we need to redisplay here
5065         _routes->redisplay ();
5066
5067         delete dialog;
5068
5069         if (_session->undo_depth() == 0) {
5070                 undo_action->set_sensitive(false);
5071         }
5072         redo_action->set_sensitive(false);
5073         begin_selection_op_history ();
5074
5075         _have_idled = true;
5076 }
5077
5078 gboolean
5079 Editor::_idle_resize (gpointer arg)
5080 {
5081         return ((Editor*)arg)->idle_resize ();
5082 }
5083
5084 void
5085 Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
5086 {
5087         if (resize_idle_id < 0) {
5088                 /* https://developer.gnome.org/glib/stable/glib-The-Main-Event-Loop.html#G-PRIORITY-HIGH-IDLE:CAPS
5089                  * GTK+ uses G_PRIORITY_HIGH_IDLE + 10 for resizing operations, and G_PRIORITY_HIGH_IDLE + 20 for redrawing operations.
5090                  * (This is done to ensure that any pending resizes are processed before any pending redraws, so that widgets are not redrawn twice unnecessarily.)
5091                  */
5092                 resize_idle_id = g_idle_add_full (G_PRIORITY_HIGH_IDLE + 10, _idle_resize, this, NULL);
5093                 _pending_resize_amount = 0;
5094         }
5095
5096         /* make a note of the smallest resulting height, so that we can clamp the
5097            lower limit at TimeAxisView::hSmall */
5098
5099         int32_t min_resulting = INT32_MAX;
5100
5101         _pending_resize_amount += h;
5102         _pending_resize_view = view;
5103
5104         min_resulting = min (min_resulting, int32_t (_pending_resize_view->current_height()) + _pending_resize_amount);
5105
5106         if (selection->tracks.contains (_pending_resize_view)) {
5107                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5108                         min_resulting = min (min_resulting, int32_t ((*i)->current_height()) + _pending_resize_amount);
5109                 }
5110         }
5111
5112         if (min_resulting < 0) {
5113                 min_resulting = 0;
5114         }
5115
5116         /* clamp */
5117         if (uint32_t (min_resulting) < TimeAxisView::preset_height (HeightSmall)) {
5118                 _pending_resize_amount += TimeAxisView::preset_height (HeightSmall) - min_resulting;
5119         }
5120 }
5121
5122 /** Handle pending resizing of tracks */
5123 bool
5124 Editor::idle_resize ()
5125 {
5126         _pending_resize_view->idle_resize (_pending_resize_view->current_height() + _pending_resize_amount);
5127
5128         if (dynamic_cast<AutomationTimeAxisView*> (_pending_resize_view) == 0 &&
5129             selection->tracks.contains (_pending_resize_view)) {
5130
5131                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
5132                         if (*i != _pending_resize_view) {
5133                                 (*i)->idle_resize ((*i)->current_height() + _pending_resize_amount);
5134                         }
5135                 }
5136         }
5137
5138         _pending_resize_amount = 0;
5139         _group_tabs->set_dirty ();
5140         resize_idle_id = -1;
5141
5142         return false;
5143 }
5144
5145 void
5146 Editor::located ()
5147 {
5148         ENSURE_GUI_THREAD (*this, &Editor::located);
5149
5150         if (_session) {
5151                 playhead_cursor->set_position (_session->audible_sample ());
5152                 if (_follow_playhead && !_pending_initial_locate) {
5153                         reset_x_origin_to_follow_playhead ();
5154                 }
5155         }
5156
5157         _pending_locate_request = false;
5158         _pending_initial_locate = false;
5159         _last_update_time = 0;
5160 }
5161
5162 void
5163 Editor::region_view_added (RegionView * rv)
5164 {
5165         MidiRegionView* mrv = dynamic_cast<MidiRegionView*> (rv);
5166         if (mrv) {
5167                 list<pair<PBD::ID const, list<Evoral::event_id_t> > >::iterator rnote;
5168                 for (rnote = selection->pending_midi_note_selection.begin(); rnote != selection->pending_midi_note_selection.end(); ++rnote) {
5169                         if (rv->region()->id () == (*rnote).first) {
5170                                 mrv->select_notes ((*rnote).second);
5171                                 selection->pending_midi_note_selection.erase(rnote);
5172                                 break;
5173                         }
5174                 }
5175         }
5176
5177         _summary->set_background_dirty ();
5178
5179         mark_region_boundary_cache_dirty ();
5180 }
5181
5182 void
5183 Editor::region_view_removed ()
5184 {
5185         _summary->set_background_dirty ();
5186
5187         mark_region_boundary_cache_dirty ();
5188 }
5189
5190 AxisView*
5191 Editor::axis_view_by_stripable (boost::shared_ptr<Stripable> s) const
5192 {
5193         for (TrackViewList::const_iterator j = track_views.begin (); j != track_views.end(); ++j) {
5194                 if ((*j)->stripable() == s) {
5195                         return *j;
5196                 }
5197         }
5198
5199         return 0;
5200 }
5201
5202 AxisView*
5203 Editor::axis_view_by_control (boost::shared_ptr<AutomationControl> c) const
5204 {
5205         for (TrackViewList::const_iterator j = track_views.begin (); j != track_views.end(); ++j) {
5206                 if ((*j)->control() == c) {
5207                         return *j;
5208                 }
5209
5210                 TimeAxisView::Children kids = (*j)->get_child_list ();
5211
5212                 for (TimeAxisView::Children::iterator k = kids.begin(); k != kids.end(); ++k) {
5213                         if ((*k)->control() == c) {
5214                                 return (*k).get();
5215                         }
5216                 }
5217         }
5218
5219         return 0;
5220 }
5221
5222 TrackViewList
5223 Editor::axis_views_from_routes (boost::shared_ptr<RouteList> r) const
5224 {
5225         TrackViewList t;
5226
5227         for (RouteList::const_iterator i = r->begin(); i != r->end(); ++i) {
5228                 TimeAxisView* tv = time_axis_view_from_stripable (*i);
5229                 if (tv) {
5230                         t.push_back (tv);
5231                 }
5232         }
5233
5234         return t;
5235 }
5236
5237 void
5238 Editor::suspend_route_redisplay ()
5239 {
5240         if (_routes) {
5241                 _routes->suspend_redisplay();
5242         }
5243 }
5244
5245 void
5246 Editor::resume_route_redisplay ()
5247 {
5248         if (_routes) {
5249                 _routes->redisplay(); // queue redisplay
5250                 _routes->resume_redisplay();
5251         }
5252 }
5253
5254 void
5255 Editor::add_vcas (VCAList& vlist)
5256 {
5257         StripableList sl;
5258
5259         for (VCAList::iterator v = vlist.begin(); v != vlist.end(); ++v) {
5260                 sl.push_back (boost::dynamic_pointer_cast<Stripable> (*v));
5261         }
5262
5263         add_stripables (sl);
5264 }
5265
5266 void
5267 Editor::add_routes (RouteList& rlist)
5268 {
5269         StripableList sl;
5270
5271         for (RouteList::iterator r = rlist.begin(); r != rlist.end(); ++r) {
5272                 sl.push_back (*r);
5273         }
5274
5275         add_stripables (sl);
5276 }
5277
5278 void
5279 Editor::add_stripables (StripableList& sl)
5280 {
5281         list<TimeAxisView*> new_views;
5282         boost::shared_ptr<VCA> v;
5283         boost::shared_ptr<Route> r;
5284         TrackViewList new_selection;
5285         bool from_scratch = (track_views.size() == 0);
5286
5287         sl.sort (Stripable::Sorter());
5288
5289         for (StripableList::iterator s = sl.begin(); s != sl.end(); ++s) {
5290
5291                 if ((v = boost::dynamic_pointer_cast<VCA> (*s)) != 0) {
5292
5293                         VCATimeAxisView* vtv = new VCATimeAxisView (*this, _session, *_track_canvas);
5294                         vtv->set_vca (v);
5295                         new_views.push_back (vtv);
5296
5297                 } else if ((r = boost::dynamic_pointer_cast<Route> (*s)) != 0) {
5298
5299                         if (r->is_auditioner() || r->is_monitor()) {
5300                                 continue;
5301                         }
5302
5303                         RouteTimeAxisView* rtv;
5304                         DataType dt = r->input()->default_type();
5305
5306                         if (dt == ARDOUR::DataType::AUDIO) {
5307                                 rtv = new AudioTimeAxisView (*this, _session, *_track_canvas);
5308                                 rtv->set_route (r);
5309                         } else if (dt == ARDOUR::DataType::MIDI) {
5310                                 rtv = new MidiTimeAxisView (*this, _session, *_track_canvas);
5311                                 rtv->set_route (r);
5312                         } else {
5313                                 throw unknown_type();
5314                         }
5315
5316                         new_views.push_back (rtv);
5317                         track_views.push_back (rtv);
5318                         new_selection.push_back (rtv);
5319
5320                         rtv->effective_gain_display ();
5321
5322                         rtv->view()->RegionViewAdded.connect (sigc::mem_fun (*this, &Editor::region_view_added));
5323                         rtv->view()->RegionViewRemoved.connect (sigc::mem_fun (*this, &Editor::region_view_removed));
5324                 }
5325         }
5326
5327         if (new_views.size() > 0) {
5328                 _routes->time_axis_views_added (new_views);
5329                 //_summary->routes_added (new_selection); /* XXX requires RouteTimeAxisViewList */
5330         }
5331
5332         /* note: !new_selection.empty() means that we got some routes rather
5333          * than just VCAs
5334          */
5335
5336         if (!from_scratch && !new_selection.empty()) {
5337                 selection->set (new_selection);
5338                 begin_selection_op_history();
5339         }
5340
5341         if (show_editor_mixer_when_tracks_arrive && !new_selection.empty()) {
5342                 show_editor_mixer (true);
5343         }
5344
5345         editor_list_button.set_sensitive (true);
5346 }
5347
5348 void
5349 Editor::timeaxisview_deleted (TimeAxisView *tv)
5350 {
5351         if (tv == entered_track) {
5352                 entered_track = 0;
5353         }
5354
5355         if (_session && _session->deletion_in_progress()) {
5356                 /* the situation is under control */
5357                 return;
5358         }
5359
5360         ENSURE_GUI_THREAD (*this, &Editor::timeaxisview_deleted, tv);
5361
5362         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (tv);
5363
5364         _routes->route_removed (tv);
5365
5366         TimeAxisView::Children c = tv->get_child_list ();
5367         for (TimeAxisView::Children::const_iterator i = c.begin(); i != c.end(); ++i) {
5368                 if (entered_track == i->get()) {
5369                         entered_track = 0;
5370                 }
5371         }
5372
5373         /* remove it from the list of track views */
5374
5375         TrackViewList::iterator i;
5376
5377         if ((i = find (track_views.begin(), track_views.end(), tv)) != track_views.end()) {
5378                 i = track_views.erase (i);
5379         }
5380
5381         /* update whatever the current mixer strip is displaying, if revelant */
5382
5383         boost::shared_ptr<Route> route;
5384
5385         if (rtav) {
5386                 route = rtav->route ();
5387         }
5388
5389         if (current_mixer_strip && current_mixer_strip->route() == route) {
5390
5391                 TimeAxisView* next_tv;
5392
5393                 if (track_views.empty()) {
5394                         next_tv = 0;
5395                 } else if (i == track_views.end()) {
5396                         next_tv = track_views.front();
5397                 } else {
5398                         next_tv = (*i);
5399                 }
5400
5401                 // skip VCAs (cannot be selected, n/a in editor-mixer)
5402                 if (dynamic_cast<VCATimeAxisView*> (next_tv)) {
5403                         /* VCAs are sorted last in line -- route_sorter.h, jump to top */
5404                         next_tv = track_views.front();
5405                 }
5406                 if (dynamic_cast<VCATimeAxisView*> (next_tv)) {
5407                         /* just in case: no master, only a VCA remains */
5408                         next_tv = 0;
5409                 }
5410
5411
5412                 if (next_tv) {
5413                         set_selected_mixer_strip (*next_tv);
5414                 } else {
5415                         /* make the editor mixer strip go away setting the
5416                          * button to inactive (which also unticks the menu option)
5417                          */
5418
5419                         ActionManager::uncheck_toggleaction ("<Actions>/Editor/show-editor-mixer");
5420                 }
5421         }
5422 }
5423
5424 void
5425 Editor::hide_track_in_display (TimeAxisView* tv, bool apply_to_selection)
5426 {
5427         if (!tv) {
5428                 return;
5429         }
5430
5431         DisplaySuspender ds;
5432         PresentationInfo::ChangeSuspender cs;
5433
5434         if (apply_to_selection) {
5435                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ) {
5436
5437                         TrackSelection::iterator j = i;
5438                         ++j;
5439
5440                         hide_track_in_display (*i, false);
5441
5442                         i = j;
5443                 }
5444         } else {
5445                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (tv);
5446
5447                 if (rtv && current_mixer_strip && (rtv->route() == current_mixer_strip->route())) {
5448                         // this will hide the mixer strip
5449                         set_selected_mixer_strip (*tv);
5450                 }
5451
5452                 _routes->hide_track_in_display (*tv);
5453         }
5454 }
5455
5456 void
5457 Editor::show_track_in_display (TimeAxisView* tv, bool move_into_view)
5458 {
5459         if (!tv) {
5460                 return;
5461         }
5462         _routes->show_track_in_display (*tv);
5463         if (move_into_view) {
5464                 ensure_time_axis_view_is_visible (*tv, false);
5465         }
5466 }
5467
5468 bool
5469 Editor::sync_track_view_list_and_routes ()
5470 {
5471         track_views = TrackViewList (_routes->views ());
5472
5473         _summary->set_background_dirty();
5474         _group_tabs->set_dirty ();
5475
5476         return false; // do not call again (until needed)
5477 }
5478
5479 void
5480 Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
5481 {
5482         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5483                 theslot (**i);
5484         }
5485 }
5486
5487 /** Find a StripableTimeAxisView by the ID of its stripable */
5488 StripableTimeAxisView*
5489 Editor::get_stripable_time_axis_by_id (const PBD::ID& id) const
5490 {
5491         StripableTimeAxisView* v;
5492
5493         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
5494                 if((v = dynamic_cast<StripableTimeAxisView*>(*i)) != 0) {
5495                         if(v->stripable()->id() == id) {
5496                                 return v;
5497                         }
5498                 }
5499         }
5500
5501         return 0;
5502 }
5503
5504 void
5505 Editor::fit_route_group (RouteGroup *g)
5506 {
5507         TrackViewList ts = axis_views_from_routes (g->route_list ());
5508         fit_tracks (ts);
5509 }
5510
5511 void
5512 Editor::consider_auditioning (boost::shared_ptr<Region> region)
5513 {
5514         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
5515
5516         if (r == 0) {
5517                 _session->cancel_audition ();
5518                 return;
5519         }
5520
5521         if (_session->is_auditioning()) {
5522                 _session->cancel_audition ();
5523                 if (r == last_audition_region) {
5524                         return;
5525                 }
5526         }
5527
5528         _session->audition_region (r);
5529         last_audition_region = r;
5530 }
5531
5532
5533 void
5534 Editor::hide_a_region (boost::shared_ptr<Region> r)
5535 {
5536         r->set_hidden (true);
5537 }
5538
5539 void
5540 Editor::show_a_region (boost::shared_ptr<Region> r)
5541 {
5542         r->set_hidden (false);
5543 }
5544
5545 void
5546 Editor::audition_region_from_region_list ()
5547 {
5548         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::consider_auditioning));
5549 }
5550
5551 void
5552 Editor::hide_region_from_region_list ()
5553 {
5554         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::hide_a_region));
5555 }
5556
5557 void
5558 Editor::show_region_in_region_list ()
5559 {
5560         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::show_a_region));
5561 }
5562
5563 void
5564 Editor::step_edit_status_change (bool yn)
5565 {
5566         if (yn) {
5567                 start_step_editing ();
5568         } else {
5569                 stop_step_editing ();
5570         }
5571 }
5572
5573 void
5574 Editor::start_step_editing ()
5575 {
5576         step_edit_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::check_step_edit), 20);
5577 }
5578
5579 void
5580 Editor::stop_step_editing ()
5581 {
5582         step_edit_connection.disconnect ();
5583 }
5584
5585 bool
5586 Editor::check_step_edit ()
5587 {
5588         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5589                 MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (*i);
5590                 if (mtv) {
5591                         mtv->check_step_edit ();
5592                 }
5593         }
5594
5595         return true; // do it again, till we stop
5596 }
5597
5598 bool
5599 Editor::scroll_press (Direction dir)
5600 {
5601         ++_scroll_callbacks;
5602
5603         if (_scroll_connection.connected() && _scroll_callbacks < 5) {
5604                 /* delay the first auto-repeat */
5605                 return true;
5606         }
5607
5608         switch (dir) {
5609         case LEFT:
5610                 scroll_backward (1);
5611                 break;
5612
5613         case RIGHT:
5614                 scroll_forward (1);
5615                 break;
5616
5617         case UP:
5618                 scroll_up_one_track ();
5619                 break;
5620
5621         case DOWN:
5622                 scroll_down_one_track ();
5623                 break;
5624         }
5625
5626         /* do hacky auto-repeat */
5627         if (!_scroll_connection.connected ()) {
5628
5629                 _scroll_connection = Glib::signal_timeout().connect (
5630                         sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), dir), 100
5631                         );
5632
5633                 _scroll_callbacks = 0;
5634         }
5635
5636         return true;
5637 }
5638
5639 void
5640 Editor::scroll_release ()
5641 {
5642         _scroll_connection.disconnect ();
5643 }
5644
5645 /** Queue a change for the Editor viewport x origin to follow the playhead */
5646 void
5647 Editor::reset_x_origin_to_follow_playhead ()
5648 {
5649         samplepos_t const sample = playhead_cursor->current_sample ();
5650
5651         if (sample < _leftmost_sample || sample > _leftmost_sample + current_page_samples()) {
5652
5653                 if (_session->transport_speed() < 0) {
5654
5655                         if (sample > (current_page_samples() / 2)) {
5656                                 center_screen (sample-(current_page_samples()/2));
5657                         } else {
5658                                 center_screen (current_page_samples()/2);
5659                         }
5660
5661                 } else {
5662
5663                         samplepos_t l = 0;
5664
5665                         if (sample < _leftmost_sample) {
5666                                 /* moving left */
5667                                 if (_session->transport_rolling()) {
5668                                         /* rolling; end up with the playhead at the right of the page */
5669                                         l = sample - current_page_samples ();
5670                                 } else {
5671                                         /* not rolling: end up with the playhead 1/4 of the way along the page */
5672                                         l = sample - current_page_samples() / 4;
5673                                 }
5674                         } else {
5675                                 /* moving right */
5676                                 if (_session->transport_rolling()) {
5677                                         /* rolling: end up with the playhead on the left of the page */
5678                                         l = sample;
5679                                 } else {
5680                                         /* not rolling: end up with the playhead 3/4 of the way along the page */
5681                                         l = sample - 3 * current_page_samples() / 4;
5682                                 }
5683                         }
5684
5685                         if (l < 0) {
5686                                 l = 0;
5687                         }
5688
5689                         center_screen_internal (l + (current_page_samples() / 2), current_page_samples ());
5690                 }
5691         }
5692 }
5693
5694 void
5695 Editor::super_rapid_screen_update ()
5696 {
5697         if (!_session || !_session->engine().running()) {
5698                 return;
5699         }
5700
5701         /* METERING / MIXER STRIPS */
5702
5703         /* update track meters, if required */
5704         if (contents().is_mapped() && meters_running) {
5705                 RouteTimeAxisView* rtv;
5706                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5707                         if ((rtv = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5708                                 rtv->fast_update ();
5709                         }
5710                 }
5711         }
5712
5713         /* and any current mixer strip */
5714         if (current_mixer_strip) {
5715                 current_mixer_strip->fast_update ();
5716         }
5717
5718         bool latent_locate = false;
5719         samplepos_t sample = _session->audible_sample (&latent_locate);
5720         const int64_t now = g_get_monotonic_time ();
5721         double err = 0;
5722
5723         if (_session->exporting ()) {
5724                 /* freewheel/export may be faster or slower than transport_speed() / SR.
5725                  * Also exporting multiple ranges locates/jumps without a _pending_locate_request.
5726                  */
5727                 _last_update_time = 0;
5728         }
5729
5730         if (_last_update_time > 0) {
5731                 /* interpolate and smoothen playhead position */
5732                 const double ds =  (now - _last_update_time) * _session->transport_speed() * _session->nominal_sample_rate () * 1e-6;
5733                 samplepos_t guess = playhead_cursor->current_sample () + rint (ds);
5734                 err = sample - guess;
5735
5736                 guess += err * .12 + _err_screen_engine; // time-constant based on 25fps (super_rapid_screen_update)
5737                 _err_screen_engine += .0144 * (err - _err_screen_engine); // tc^2
5738
5739 #if 0 // DEBUG
5740                 printf ("eng: %ld  gui:%ld (%+6.1f)  diff: %6.1f (err: %7.2f)\n",
5741                                 sample, guess, ds,
5742                                 err, _err_screen_engine);
5743 #endif
5744
5745                 sample = guess;
5746         } else {
5747                 _err_screen_engine = 0;
5748         }
5749
5750         if (err > 8192 || latent_locate) {
5751                 // in case of x-runs or freewheeling
5752                 _last_update_time = 0;
5753                 sample = _session->audible_sample ();
5754         } else {
5755                 _last_update_time = now;
5756         }
5757
5758         //snapped cursor stuff ( the snapped_cursor shows where an operation is going to occur )
5759         bool ignored;
5760         MusicSample where (sample, 0);
5761         if ( !UIConfiguration::instance().get_show_snapped_cursor() ) {
5762                 snapped_cursor->hide ();
5763         } else if ( _edit_point == EditAtPlayhead && !_dragging_playhead) {
5764                 snap_to (where);  // can't use snap_to_with_modifier?
5765                 snapped_cursor->set_position (where.sample);
5766                 snapped_cursor->show ();
5767         } else if ( _edit_point == EditAtSelectedMarker ) {
5768                 //NOTE:  I don't think EditAtSelectedMarker should snap.  they are what they are.
5769                 //however, the current editing code -does- snap so I'll draw it that way for now.
5770                 if ( !selection->markers.empty() ) {
5771                         MusicSample ms (selection->markers.front()->position(), 0);
5772                         snap_to (ms);  // should use snap_to_with_modifier?
5773                         snapped_cursor->set_position ( ms.sample );
5774                         snapped_cursor->show ();
5775                 }
5776         } else if (mouse_sample (where.sample, ignored)) {   //cursor is in the editing canvas. show it.
5777                 snapped_cursor->show ();
5778         } else { //mouse is out of the editing canvas.  hide the snapped_cursor
5779                 snapped_cursor->hide ();
5780         }
5781
5782         /* There are a few reasons why we might not update the playhead / viewport stuff:
5783          *
5784          * 1.  we don't update things when there's a pending locate request, otherwise
5785          *     when the editor requests a locate there is a chance that this method
5786          *     will move the playhead before the locate request is processed, causing
5787          *     a visual glitch.
5788          * 2.  if we're not rolling, there's nothing to do here (locates are handled elsewhere).
5789          * 3.  if we're still at the same frame that we were last time, there's nothing to do.
5790          */
5791         if (_pending_locate_request) {
5792                 _last_update_time = 0;
5793                 return;
5794         }
5795
5796         if (_dragging_playhead) {
5797                 _last_update_time = 0;
5798                 return;
5799         }
5800
5801         if (playhead_cursor->current_sample () == sample) {
5802                 return;
5803         }
5804
5805         playhead_cursor->set_position (sample);
5806
5807         if (_session->requested_return_sample() >= 0) {
5808                 _last_update_time = 0;
5809                 return;
5810         }
5811
5812         if (!_follow_playhead || pending_visual_change.being_handled) {
5813                 /* We only do this if we aren't already
5814                  * handling a visual change (ie if
5815                  * pending_visual_change.being_handled is
5816                  * false) so that these requests don't stack
5817                  * up there are too many of them to handle in
5818                  * time.
5819                  */
5820                 return;
5821         }
5822
5823         if (!_stationary_playhead) {
5824                 reset_x_origin_to_follow_playhead ();
5825         } else {
5826                 samplepos_t const sample = playhead_cursor->current_sample ();
5827                 double target = ((double)sample - (double)current_page_samples() / 2.0);
5828                 if (target <= 0.0) {
5829                         target = 0.0;
5830                 }
5831                 // compare to EditorCursor::set_position()
5832                 double const old_pos = sample_to_pixel_unrounded (_leftmost_sample);
5833                 double const new_pos = sample_to_pixel_unrounded (target);
5834                 if (rint (new_pos) != rint (old_pos)) {
5835                         reset_x_origin (pixel_to_sample (new_pos));
5836                 }
5837         }
5838 }
5839
5840
5841 void
5842 Editor::session_going_away ()
5843 {
5844         _have_idled = false;
5845
5846         _session_connections.drop_connections ();
5847
5848         super_rapid_screen_update_connection.disconnect ();
5849
5850         selection->clear ();
5851         cut_buffer->clear ();
5852
5853         clicked_regionview = 0;
5854         clicked_axisview = 0;
5855         clicked_routeview = 0;
5856         entered_regionview = 0;
5857         entered_track = 0;
5858         _last_update_time = 0;
5859         _drags->abort ();
5860
5861         playhead_cursor->hide ();
5862
5863         /* rip everything out of the list displays */
5864
5865         _regions->clear ();
5866         _routes->clear ();
5867         _route_groups->clear ();
5868
5869         /* do this first so that deleting a track doesn't reset cms to null
5870            and thus cause a leak.
5871         */
5872
5873         if (current_mixer_strip) {
5874                 if (current_mixer_strip->get_parent() != 0) {
5875                         global_hpacker.remove (*current_mixer_strip);
5876                 }
5877                 delete current_mixer_strip;
5878                 current_mixer_strip = 0;
5879         }
5880
5881         /* delete all trackviews */
5882
5883         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5884                 delete *i;
5885         }
5886         track_views.clear ();
5887
5888         nudge_clock->set_session (0);
5889
5890         editor_list_button.set_active(false);
5891         editor_list_button.set_sensitive(false);
5892
5893         /* clear tempo/meter rulers */
5894         remove_metric_marks ();
5895         clear_marker_display ();
5896
5897         hide_grid_lines ();
5898         delete grid_lines;
5899         grid_lines = 0;
5900
5901         stop_step_editing ();
5902
5903         if (own_window()) {
5904
5905                 /* get rid of any existing editor mixer strip */
5906
5907                 WindowTitle title(Glib::get_application_name());
5908                 title += _("Editor");
5909
5910                 own_window()->set_title (title.get_string());
5911         }
5912
5913         SessionHandlePtr::session_going_away ();
5914 }
5915
5916 void
5917 Editor::trigger_script (int i)
5918 {
5919         LuaInstance::instance()-> call_action (i);
5920 }
5921
5922 void
5923 Editor::show_editor_list (bool yn)
5924 {
5925         if (yn) {
5926                 _editor_list_vbox.show ();
5927         } else {
5928                 _editor_list_vbox.hide ();
5929         }
5930 }
5931
5932 void
5933 Editor::change_region_layering_order (bool from_context_menu)
5934 {
5935         const samplepos_t position = get_preferred_edit_position (EDIT_IGNORE_NONE, from_context_menu);
5936
5937         if (!clicked_routeview) {
5938                 if (layering_order_editor) {
5939                         layering_order_editor->hide ();
5940                 }
5941                 return;
5942         }
5943
5944         boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track> (clicked_routeview->route());
5945
5946         if (!track) {
5947                 return;
5948         }
5949
5950         boost::shared_ptr<Playlist> pl = track->playlist();
5951
5952         if (!pl) {
5953                 return;
5954         }
5955
5956         if (layering_order_editor == 0) {
5957                 layering_order_editor = new RegionLayeringOrderEditor (*this);
5958         }
5959
5960         layering_order_editor->set_context (clicked_routeview->name(), _session, clicked_routeview, pl, position);
5961         layering_order_editor->maybe_present ();
5962 }
5963
5964 void
5965 Editor::update_region_layering_order_editor ()
5966 {
5967         if (layering_order_editor && layering_order_editor->is_visible ()) {
5968                 change_region_layering_order (true);
5969         }
5970 }
5971
5972 void
5973 Editor::setup_fade_images ()
5974 {
5975         _xfade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadein-linear")));
5976         _xfade_in_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadein-symmetric")));
5977         _xfade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadein-fast-cut")));
5978         _xfade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadein-slow-cut")));
5979         _xfade_in_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadein-constant-power")));
5980
5981         _xfade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
5982         _xfade_out_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-symmetric")));
5983         _xfade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
5984         _xfade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
5985         _xfade_out_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-constant-power")));
5986
5987 }
5988
5989 /** @return Gtk::manage()d menu item for a given action from `editor_actions' */
5990 Gtk::MenuItem&
5991 Editor::action_menu_item (std::string const & name)
5992 {
5993         Glib::RefPtr<Action> a = editor_actions->get_action (name);
5994         assert (a);
5995
5996         return *manage (a->create_menu_item ());
5997 }
5998
5999 void
6000 Editor::add_notebook_page (string const & name, Gtk::Widget& widget)
6001 {
6002         EventBox* b = manage (new EventBox);
6003         b->signal_button_press_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::notebook_tab_clicked), &widget));
6004         Label* l = manage (new Label (name));
6005         l->set_angle (-90);
6006         b->add (*l);
6007         b->show_all ();
6008         _the_notebook.append_page (widget, *b);
6009 }
6010
6011 bool
6012 Editor::notebook_tab_clicked (GdkEventButton* ev, Gtk::Widget* page)
6013 {
6014         if (ev->type == GDK_BUTTON_PRESS || ev->type == GDK_2BUTTON_PRESS) {
6015                 _the_notebook.set_current_page (_the_notebook.page_num (*page));
6016         }
6017
6018         if (ev->type == GDK_2BUTTON_PRESS) {
6019
6020                 /* double-click on a notebook tab shrinks or expands the notebook */
6021
6022                 if (_notebook_shrunk) {
6023                         if (pre_notebook_shrink_pane_width) {
6024                                 edit_pane.set_divider (0, *pre_notebook_shrink_pane_width);
6025                         }
6026                         _notebook_shrunk = false;
6027                 } else {
6028                         pre_notebook_shrink_pane_width = edit_pane.get_divider();
6029
6030                         /* this expands the LHS of the edit pane to cover the notebook
6031                            PAGE but leaves the tabs visible.
6032                          */
6033                         edit_pane.set_divider (0, edit_pane.get_divider() + page->get_width());
6034                         _notebook_shrunk = true;
6035                 }
6036         }
6037
6038         return true;
6039 }
6040
6041 void
6042 Editor::popup_control_point_context_menu (ArdourCanvas::Item* item, GdkEvent* event)
6043 {
6044         using namespace Menu_Helpers;
6045
6046         MenuList& items = _control_point_context_menu.items ();
6047         items.clear ();
6048
6049         items.push_back (MenuElem (_("Edit..."), sigc::bind (sigc::mem_fun (*this, &Editor::edit_control_point), item)));
6050         items.push_back (MenuElem (_("Delete"), sigc::bind (sigc::mem_fun (*this, &Editor::remove_control_point), item)));
6051         if (!can_remove_control_point (item)) {
6052                 items.back().set_sensitive (false);
6053         }
6054
6055         _control_point_context_menu.popup (event->button.button, event->button.time);
6056 }
6057
6058 void
6059 Editor::popup_note_context_menu (ArdourCanvas::Item* item, GdkEvent* event)
6060 {
6061         using namespace Menu_Helpers;
6062
6063         NoteBase* note = reinterpret_cast<NoteBase*>(item->get_data("notebase"));
6064         if (!note) {
6065                 return;
6066         }
6067
6068         /* We need to get the selection here and pass it to the operations, since
6069            popping up the menu will cause a region leave event which clears
6070            entered_regionview. */
6071
6072         MidiRegionView&       mrv = note->region_view();
6073         const RegionSelection rs  = get_regions_from_selection_and_entered ();
6074         const uint32_t sel_size = mrv.selection_size ();
6075
6076         MenuList& items = _note_context_menu.items();
6077         items.clear();
6078
6079         if (sel_size > 0) {
6080                 items.push_back(MenuElem(_("Delete"),
6081                                          sigc::mem_fun(mrv, &MidiRegionView::delete_selection)));
6082         }
6083
6084         items.push_back(MenuElem(_("Edit..."),
6085                                  sigc::bind(sigc::mem_fun(*this, &Editor::edit_notes), &mrv)));
6086         if (sel_size != 1) {
6087                 items.back().set_sensitive (false);
6088         }
6089
6090         items.push_back(MenuElem(_("Transpose..."),
6091                                  sigc::bind(sigc::mem_fun(*this, &Editor::transpose_regions), rs)));
6092
6093
6094         items.push_back(MenuElem(_("Legatize"),
6095                                  sigc::bind(sigc::mem_fun(*this, &Editor::legatize_regions), rs, false)));
6096         if (sel_size < 2) {
6097                 items.back().set_sensitive (false);
6098         }
6099
6100         items.push_back(MenuElem(_("Quantize..."),
6101                                  sigc::bind(sigc::mem_fun(*this, &Editor::quantize_regions), rs)));
6102
6103         items.push_back(MenuElem(_("Remove Overlap"),
6104                                  sigc::bind(sigc::mem_fun(*this, &Editor::legatize_regions), rs, true)));
6105         if (sel_size < 2) {
6106                 items.back().set_sensitive (false);
6107         }
6108
6109         items.push_back(MenuElem(_("Transform..."),
6110                                  sigc::bind(sigc::mem_fun(*this, &Editor::transform_regions), rs)));
6111
6112         _note_context_menu.popup (event->button.button, event->button.time);
6113 }
6114
6115 void
6116 Editor::zoom_vertical_modifier_released()
6117 {
6118         _stepping_axis_view = 0;
6119 }
6120
6121 void
6122 Editor::ui_parameter_changed (string parameter)
6123 {
6124         if (parameter == "icon-set") {
6125                 while (!_cursor_stack.empty()) {
6126                         _cursor_stack.pop_back();
6127                 }
6128                 _cursors->set_cursor_set (UIConfiguration::instance().get_icon_set());
6129                 _cursor_stack.push_back(_cursors->grabber);
6130                 edit_pane.set_drag_cursor (*_cursors->expand_left_right);
6131                 editor_summary_pane.set_drag_cursor (*_cursors->expand_up_down);
6132
6133         } else if (parameter == "draggable-playhead") {
6134                 if (_verbose_cursor) {
6135                         playhead_cursor->set_sensitive (UIConfiguration::instance().get_draggable_playhead());
6136                 }
6137         }
6138 }
6139
6140 Gtk::Window*
6141 Editor::use_own_window (bool and_fill_it)
6142 {
6143         bool new_window = !own_window();
6144
6145         Gtk::Window* win = Tabbable::use_own_window (and_fill_it);
6146
6147         if (win && new_window) {
6148                 win->set_name ("EditorWindow");
6149
6150                 ARDOUR_UI::instance()->setup_toplevel_window (*win, _("Editor"), this);
6151
6152                 // win->signal_realize().connect (*this, &Editor::on_realize);
6153                 win->signal_event().connect (sigc::bind (sigc::ptr_fun (&Keyboard::catch_user_event_for_pre_dialog_focus), win));
6154                 win->signal_event().connect (sigc::mem_fun (*this, &Editor::generic_event_handler));
6155                 win->set_data ("ardour-bindings", bindings);
6156
6157                 update_title ();
6158         }
6159
6160         DisplaySuspender ds;
6161         contents().show_all ();
6162
6163         /* XXX: this is a bit unfortunate; it would probably
6164            be nicer if we could just call show () above rather
6165            than needing the show_all ()
6166         */
6167
6168         /* re-hide stuff if necessary */
6169         editor_list_button_toggled ();
6170         parameter_changed ("show-summary");
6171         parameter_changed ("show-group-tabs");
6172         parameter_changed ("show-zoom-tools");
6173
6174         /* now reset all audio_time_axis heights, because widgets might need
6175            to be re-hidden
6176         */
6177
6178         TimeAxisView *tv;
6179
6180         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
6181                 tv = (static_cast<TimeAxisView*>(*i));
6182                 tv->reset_height ();
6183         }
6184
6185         if (current_mixer_strip) {
6186                 current_mixer_strip->hide_things ();
6187                 current_mixer_strip->parameter_changed ("mixer-element-visibility");
6188         }
6189
6190         return win;
6191 }