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 #define __STDC_LIMIT_MACROS 1
  23 #include <stdint.h>
  24 #include <unistd.h>
  25 #include <cstdlib>
  26 #include <cmath>
  27 #include <string>
  28 #include <algorithm>
  29 #include <map>
  30
  31 #include "ardour_ui.h"
  32 /*
  33  * ardour_ui.h include was moved to the top of the list
  34  * due to a conflicting definition of 'Style' between
  35  * Apple's MacTypes.h and BarController.
  36  */
  37
  38 #include <boost/none.hpp>
  39
  40 #include <sigc++/bind.h>
  41
  42 #include "pbd/convert.h"
  43 #include "pbd/error.h"
  44 #include "pbd/enumwriter.h"
  45 #include "pbd/memento_command.h"
  46 #include "pbd/unknown_type.h"
  47
  48 #include <glibmm/miscutils.h>
  49 #include <gtkmm/image.h>
  50 #include <gdkmm/color.h>
  51 #include <gdkmm/bitmap.h>
  52
  53 #include <gtkmm2ext/grouped_buttons.h>
  54 #include <gtkmm2ext/gtk_ui.h>
  55 #include <gtkmm2ext/tearoff.h>
  56 #include <gtkmm2ext/utils.h>
  57 #include <gtkmm2ext/window_title.h>
  58 #include <gtkmm2ext/choice.h>
  59 #include <gtkmm2ext/cell_renderer_pixbuf_toggle.h>
  60
  61 #include "ardour/audio_diskstream.h"
  62 #include "ardour/audio_track.h"
  63 #include "ardour/audioplaylist.h"
  64 #include "ardour/audioregion.h"
  65 #include "ardour/location.h"
  66 #include "ardour/midi_region.h"
  67 #include "ardour/plugin_manager.h"
  68 #include "ardour/profile.h"
  69 #include "ardour/route_group.h"
  70 #include "ardour/session_directory.h"
  71 #include "ardour/session_route.h"
  72 #include "ardour/session_state_utils.h"
  73 #include "ardour/tempo.h"
  74 #include "ardour/utils.h"
  75 #include "ardour/session_playlists.h"
  76 #include "ardour/audioengine.h"
  77
  78 #include "control_protocol/control_protocol.h"
  79
  80 #include "editor.h"
  81 #include "keyboard.h"
  82 #include "marker.h"
  83 #include "playlist_selector.h"
  84 #include "audio_region_view.h"
  85 #include "rgb_macros.h"
  86 #include "selection.h"
  87 #include "audio_streamview.h"
  88 #include "time_axis_view.h"
  89 #include "audio_time_axis.h"
  90 #include "utils.h"
  91 #include "crossfade_view.h"
  92 #include "canvas-noevent-text.h"
  93 #include "editing.h"
  94 #include "public_editor.h"
  95 #include "crossfade_edit.h"
  96 #include "canvas_impl.h"
  97 #include "actions.h"
  98 #include "sfdb_ui.h"
  99 #include "gui_thread.h"
 100 #include "simpleline.h"
 101 #include "rhythm_ferret.h"
 102 #include "actions.h"
 103 #include "tempo_lines.h"
 104 #include "analysis_window.h"
 105 #include "bundle_manager.h"
 106 #include "global_port_matrix.h"
 107 #include "editor_drag.h"
 108 #include "editor_group_tabs.h"
 109 #include "automation_time_axis.h"
 110 #include "editor_routes.h"
 111 #include "midi_time_axis.h"
 112 #include "mixer_strip.h"
 113 #include "editor_route_groups.h"
 114 #include "editor_regions.h"
 115 #include "editor_locations.h"
 116 #include "editor_snapshots.h"
 117 #include "editor_summary.h"
 118 #include "region_layering_order_editor.h"
 119
 120 #include "i18n.h"
 121
 122 #ifdef WITH_CMT
 123 #include "imageframe_socket_handler.h"
 124 #endif
 125
 126 using namespace std;
 127 using namespace ARDOUR;
 128 using namespace PBD;
 129 using namespace Gtk;
 130 using namespace Glib;
 131 using namespace Gtkmm2ext;
 132 using namespace Editing;
 133
 134 using PBD::internationalize;
 135 using PBD::atoi;
 136 using Gtkmm2ext::Keyboard;
 137
 138 const double Editor::timebar_height = 15.0;
 139
 140 #include "editor_xpms"
 141
 142 static const gchar *_snap_type_strings[] = {
 143         N_("CD Frames"),
 144         N_("Timecode Frames"),
 145         N_("Timecode Seconds"),
 146         N_("Timecode Minutes"),
 147         N_("Seconds"),
 148         N_("Minutes"),
 149         N_("Beats/32"),
 150         N_("Beats/28"),
 151         N_("Beats/24"),
 152         N_("Beats/20"),
 153         N_("Beats/16"),
 154         N_("Beats/14"),
 155         N_("Beats/12"),
 156         N_("Beats/10"),
 157         N_("Beats/8"),
 158         N_("Beats/7"),
 159         N_("Beats/6"),
 160         N_("Beats/5"),
 161         N_("Beats/4"),
 162         N_("Beats/3"),
 163         N_("Beats/2"),
 164         N_("Beats"),
 165         N_("Bars"),
 166         N_("Marks"),
 167         N_("Region starts"),
 168         N_("Region ends"),
 169         N_("Region syncs"),
 170         N_("Region bounds"),
 171         0
 172 };
 173
 174 static const gchar *_snap_mode_strings[] = {
 175         N_("No Grid"),
 176         N_("Grid"),
 177         N_("Magnetic"),
 178         0
 179 };
 180
 181 static const gchar *_edit_point_strings[] = {
 182         N_("Playhead"),
 183         N_("Marker"),
 184         N_("Mouse"),
 185         0
 186 };
 187
 188 static const gchar *_zoom_focus_strings[] = {
 189         N_("Left"),
 190         N_("Right"),
 191         N_("Center"),
 192         N_("Playhead"),
 193         N_("Mouse"),
 194         N_("Edit point"),
 195         0
 196 };
 197
 198 #ifdef USE_RUBBERBAND
 199 static const gchar *_rb_opt_strings[] = {
 200         N_("Mushy"),
 201         N_("Smooth"),
 202         N_("Balanced multitimbral mixture"),
 203         N_("Unpitched percussion with stable notes"),
 204         N_("Crisp monophonic instrumental"),
 205         N_("Unpitched solo percussion"),
 206         N_("Resample without preserving pitch"),
 207         0
 208 };
 209 #endif
 210
 211 /* Soundfile  drag-n-drop */
 212
 213 Gdk::Cursor* Editor::cross_hair_cursor = 0;
 214 Gdk::Cursor* Editor::selector_cursor = 0;
 215 Gdk::Cursor* Editor::trimmer_cursor = 0;
 216 Gdk::Cursor* Editor::left_side_trim_cursor = 0;
 217 Gdk::Cursor* Editor::right_side_trim_cursor = 0;
 218 Gdk::Cursor* Editor::fade_in_cursor = 0;
 219 Gdk::Cursor* Editor::fade_out_cursor = 0;
 220 Gdk::Cursor* Editor::grabber_cursor = 0;
 221 Gdk::Cursor* Editor::grabber_note_cursor = 0;
 222 Gdk::Cursor* Editor::grabber_edit_point_cursor = 0;
 223 Gdk::Cursor* Editor::zoom_cursor = 0;
 224 Gdk::Cursor* Editor::time_fx_cursor = 0;
 225 Gdk::Cursor* Editor::fader_cursor = 0;
 226 Gdk::Cursor* Editor::speaker_cursor = 0;
 227 Gdk::Cursor* Editor::midi_pencil_cursor = 0;
 228 Gdk::Cursor* Editor::midi_select_cursor = 0;
 229 Gdk::Cursor* Editor::midi_resize_cursor = 0;
 230 Gdk::Cursor* Editor::midi_erase_cursor = 0;
 231 Gdk::Cursor* Editor::wait_cursor = 0;
 232 Gdk::Cursor* Editor::timebar_cursor = 0;
 233 Gdk::Cursor* Editor::transparent_cursor = 0;
 234 Gdk::Cursor* Editor::up_down_cursor = 0;
 235
 236 void
 237 show_me_the_size (Requisition* r, const char* what)
 238 {
 239         cerr << "size of " << what << " = " << r->width << " x " << r->height << endl;
 240 }
 241
 242 #ifdef GTKOSX
 243 static void
 244 pane_size_watcher (Paned* pane)
 245 {
 246        /* if the handle of a pane vanishes into (at least) the tabs of a notebook,
 247           it is no longer accessible. so stop that. this doesn't happen on X11,
 248           just the quartz backend.
 249
 250           ugh.
 251        */
 252
 253        int max_width_of_lhs = GTK_WIDGET(pane->gobj())->allocation.width - 25;
 254
 255        gint pos = pane->get_position ();
 256
 257        if (pos > max_width_of_lhs) {
 258                pane->set_position (max_width_of_lhs);
 259        }
 260 }
 261 #endif
 262
 263 Editor::Editor ()
 264         : _join_object_range_state (JOIN_OBJECT_RANGE_NONE)
 265
 266           /* time display buttons */
 267         , minsec_label (_("Mins:Secs"))
 268         , bbt_label (_("Bars:Beats"))
 269         , timecode_label (_("Timecode"))
 270         , frame_label (_("Samples"))
 271         , tempo_label (_("Tempo"))
 272         , meter_label (_("Meter"))
 273         , mark_label (_("Location Markers"))
 274         , range_mark_label (_("Range Markers"))
 275         , transport_mark_label (_("Loop/Punch Ranges"))
 276         , cd_mark_label (_("CD Markers"))
 277         , edit_packer (4, 4, true)
 278
 279           /* the values here don't matter: layout widgets
 280              reset them as needed.
 281           */
 282
 283         , vertical_adjustment (0.0, 0.0, 10.0, 400.0)
 284
 285           /* tool bar related */
 286
 287         , zoom_range_clock (X_("zoomrange"), false, X_("ZoomRangeClock"), true, false, true)
 288
 289         , toolbar_selection_clock_table (2,3)
 290
 291         , automation_mode_button (_("mode"))
 292         , global_automation_button (_("automation"))
 293
 294         , midi_panic_button (_("Panic"))
 295
 296 #ifdef WITH_CMT
 297         , image_socket_listener(0)
 298 #endif
 299
 300           /* nudge */
 301
 302         , nudge_clock (X_("nudge"), false, X_("NudgeClock"), true, false, true)
 303         , meters_running(false)
 304         , _pending_locate_request (false)
 305         , _pending_initial_locate (false)
 306         , _last_cut_copy_source_track (0)
 307 {
 308         constructed = false;
 309
 310         /* we are a singleton */
 311
 312         PublicEditor::_instance = this;
 313
 314         _have_idled = false;
 315
 316         selection = new Selection (this);
 317         cut_buffer = new Selection (this);
 318
 319         clicked_regionview = 0;
 320         clicked_axisview = 0;
 321         clicked_routeview = 0;
 322         clicked_crossfadeview = 0;
 323         clicked_control_point = 0;
 324         last_update_frame = 0;
 325         _drags = new DragManager (this);
 326         current_mixer_strip = 0;
 327         current_bbt_points = 0;
 328         tempo_lines = 0;
 329
 330         snap_type_strings =  I18N (_snap_type_strings);
 331         snap_mode_strings =  I18N (_snap_mode_strings);
 332         zoom_focus_strings = I18N (_zoom_focus_strings);
 333         edit_point_strings = I18N (_edit_point_strings);
 334 #ifdef USE_RUBBERBAND
 335         rb_opt_strings = I18N (_rb_opt_strings);
 336         rb_current_opt = 4;
 337 #endif
 338
 339         snap_threshold = 5.0;
 340         bbt_beat_subdivision = 4;
 341         _canvas_width = 0;
 342         _canvas_height = 0;
 343         last_autoscroll_x = 0;
 344         last_autoscroll_y = 0;
 345         autoscroll_active = false;
 346         autoscroll_timeout_tag = -1;
 347         logo_item = 0;
 348
 349         analysis_window = 0;
 350
 351         current_interthread_info = 0;
 352         _show_measures = true;
 353         show_gain_after_trim = false;
 354         verbose_cursor_on = true;
 355         last_item_entered = 0;
 356
 357         have_pending_keyboard_selection = false;
 358         _follow_playhead = true;
 359         _stationary_playhead = false;
 360         _xfade_visibility = true;
 361         editor_ruler_menu = 0;
 362         no_ruler_shown_update = false;
 363         marker_menu = 0;
 364         session_range_marker_menu = 0;
 365         range_marker_menu = 0;
 366         marker_menu_item = 0;
 367         tempo_or_meter_marker_menu = 0;
 368         transport_marker_menu = 0;
 369         new_transport_marker_menu = 0;
 370         editor_mixer_strip_width = Wide;
 371         show_editor_mixer_when_tracks_arrive = false;
 372         region_edit_menu_split_multichannel_item = 0;
 373         region_edit_menu_split_item = 0;
 374         temp_location = 0;
 375         leftmost_frame = 0;
 376         current_stepping_trackview = 0;
 377         entered_track = 0;
 378         entered_regionview = 0;
 379         entered_marker = 0;
 380         clear_entered_track = false;
 381         current_timefx = 0;
 382         playhead_cursor = 0;
 383         button_release_can_deselect = true;
 384         _dragging_playhead = false;
 385         _dragging_edit_point = false;
 386         select_new_marker = false;
 387         rhythm_ferret = 0;
 388         layering_order_editor = 0;
 389         _bundle_manager = 0;
 390         no_save_visual = false;
 391         resize_idle_id = -1;
 392
 393         scrubbing_direction = 0;
 394
 395         sfbrowser = 0;
 396
 397         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 398         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 399         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 400         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 401         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 402
 403         _edit_point = EditAtMouse;
 404         _internal_editing = false;
 405         current_canvas_cursor = 0;
 406
 407         frames_per_unit = 2048; /* too early to use reset_zoom () */
 408
 409         _scroll_callbacks = 0;
 410
 411         zoom_focus = ZoomFocusLeft;
 412         set_zoom_focus (ZoomFocusLeft);
 413         zoom_range_clock.ValueChanged.connect (sigc::mem_fun(*this, &Editor::zoom_adjustment_changed));
 414
 415         bbt_label.set_name ("EditorTimeButton");
 416         bbt_label.set_size_request (-1, (int)timebar_height);
 417         bbt_label.set_alignment (1.0, 0.5);
 418         bbt_label.set_padding (5,0);
 419         bbt_label.hide ();
 420         bbt_label.set_no_show_all();
 421         minsec_label.set_name ("EditorTimeButton");
 422         minsec_label.set_size_request (-1, (int)timebar_height);
 423         minsec_label.set_alignment (1.0, 0.5);
 424         minsec_label.set_padding (5,0);
 425         minsec_label.hide ();
 426         minsec_label.set_no_show_all();
 427         timecode_label.set_name ("EditorTimeButton");
 428         timecode_label.set_size_request (-1, (int)timebar_height);
 429         timecode_label.set_alignment (1.0, 0.5);
 430         timecode_label.set_padding (5,0);
 431         timecode_label.hide ();
 432         timecode_label.set_no_show_all();
 433         frame_label.set_name ("EditorTimeButton");
 434         frame_label.set_size_request (-1, (int)timebar_height);
 435         frame_label.set_alignment (1.0, 0.5);
 436         frame_label.set_padding (5,0);
 437         frame_label.hide ();
 438         frame_label.set_no_show_all();
 439
 440         tempo_label.set_name ("EditorTimeButton");
 441         tempo_label.set_size_request (-1, (int)timebar_height);
 442         tempo_label.set_alignment (1.0, 0.5);
 443         tempo_label.set_padding (5,0);
 444         tempo_label.hide();
 445         tempo_label.set_no_show_all();
 446         meter_label.set_name ("EditorTimeButton");
 447         meter_label.set_size_request (-1, (int)timebar_height);
 448         meter_label.set_alignment (1.0, 0.5);
 449         meter_label.set_padding (5,0);
 450         meter_label.hide();
 451         meter_label.set_no_show_all();
 452         mark_label.set_name ("EditorTimeButton");
 453         mark_label.set_size_request (-1, (int)timebar_height);
 454         mark_label.set_alignment (1.0, 0.5);
 455         mark_label.set_padding (5,0);
 456         mark_label.hide();
 457         mark_label.set_no_show_all();
 458         cd_mark_label.set_name ("EditorTimeButton");
 459         cd_mark_label.set_size_request (-1, (int)timebar_height);
 460         cd_mark_label.set_alignment (1.0, 0.5);
 461         cd_mark_label.set_padding (5,0);
 462         cd_mark_label.hide();
 463         cd_mark_label.set_no_show_all();
 464         range_mark_label.set_name ("EditorTimeButton");
 465         range_mark_label.set_size_request (-1, (int)timebar_height);
 466         range_mark_label.set_alignment (1.0, 0.5);
 467         range_mark_label.set_padding (5,0);
 468         range_mark_label.hide();
 469         range_mark_label.set_no_show_all();
 470         transport_mark_label.set_name ("EditorTimeButton");
 471         transport_mark_label.set_size_request (-1, (int)timebar_height);
 472         transport_mark_label.set_alignment (1.0, 0.5);
 473         transport_mark_label.set_padding (5,0);
 474         transport_mark_label.hide();
 475         transport_mark_label.set_no_show_all();
 476
 477         initialize_rulers ();
 478         initialize_canvas ();
 479         _summary = new EditorSummary (this);
 480
 481         selection->TimeChanged.connect (sigc::mem_fun(*this, &Editor::time_selection_changed));
 482         selection->TracksChanged.connect (sigc::mem_fun(*this, &Editor::track_selection_changed));
 483         editor_regions_selection_changed_connection = selection->RegionsChanged.connect (sigc::mem_fun(*this, &Editor::region_selection_changed));
 484         selection->PointsChanged.connect (sigc::mem_fun(*this, &Editor::point_selection_changed));
 485         selection->MarkersChanged.connect (sigc::mem_fun(*this, &Editor::marker_selection_changed));
 486
 487         edit_controls_vbox.set_spacing (0);
 488         vertical_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &Editor::tie_vertical_scrolling), true);
 489         track_canvas->signal_map_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_map_handler));
 490
 491         HBox* h = manage (new HBox);
 492         _group_tabs = new EditorGroupTabs (this);
 493         h->pack_start (*_group_tabs, PACK_SHRINK);
 494         h->pack_start (edit_controls_vbox);
 495         controls_layout.add (*h);
 496
 497         controls_layout.set_name ("EditControlsBase");
 498         controls_layout.add_events (Gdk::SCROLL_MASK);
 499         controls_layout.signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::control_layout_scroll), false);
 500
 501         controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
 502         controls_layout.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::edit_controls_button_release));
 503         controls_layout_size_request_connection = controls_layout.signal_size_request().connect (sigc::mem_fun (*this, &Editor::controls_layout_size_request));
 504
 505         build_cursors ();
 506
 507         ArdourCanvas::Canvas* time_pad = manage(new ArdourCanvas::Canvas());
 508         ArdourCanvas::SimpleLine* pad_line_1 = manage(new ArdourCanvas::SimpleLine(*time_pad->root(),
 509                         0.0, 1.0, 100.0, 1.0));
 510         pad_line_1->property_color_rgba() = 0xFF0000FF;
 511         pad_line_1->show();
 512         time_pad->show();
 513
 514         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
 515         time_canvas_vbox.set_size_request (-1, -1);
 516
 517         ruler_label_event_box.add (ruler_label_vbox);
 518         ruler_label_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 519         ruler_label_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 520
 521         time_button_event_box.add (time_button_vbox);
 522         time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 523         time_button_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 524
 525         /* these enable us to have a dedicated window (for cursor setting, etc.)
 526            for the canvas areas.
 527         */
 528
 529         track_canvas_event_box.add (*track_canvas);
 530
 531         time_canvas_event_box.add (time_canvas_vbox);
 532         time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 533
 534         edit_packer.set_col_spacings (0);
 535         edit_packer.set_row_spacings (0);
 536         edit_packer.set_homogeneous (false);
 537         edit_packer.set_border_width (0);
 538         edit_packer.set_name ("EditorWindow");
 539
 540         /* labels for the rulers */
 541         edit_packer.attach (ruler_label_event_box,   1, 2, 0, 1,    FILL,        SHRINK, 0, 0);
 542         /* labels for the marker "tracks" */
 543         edit_packer.attach (time_button_event_box,   1, 2, 1, 2,    FILL,        SHRINK, 0, 0);
 544         /* the rulers */
 545         edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
 546         /* track controls */
 547         edit_packer.attach (controls_layout,         0, 2, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
 548         /* main canvas */
 549         edit_packer.attach (track_canvas_event_box,  2, 3, 1, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 550
 551         bottom_hbox.set_border_width (2);
 552         bottom_hbox.set_spacing (3);
 553
 554         _route_groups = new EditorRouteGroups (this);
 555         _routes = new EditorRoutes (this);
 556         _regions = new EditorRegions (this);
 557         _snapshots = new EditorSnapshots (this);
 558         _locations = new EditorLocations (this);
 559
 560         Gtk::Label* nlabel;
 561
 562         nlabel = manage (new Label (_("Regions")));
 563         nlabel->set_angle (-90);
 564         the_notebook.append_page (_regions->widget (), *nlabel);
 565         nlabel = manage (new Label (_("Tracks & Busses")));
 566         nlabel->set_angle (-90);
 567         the_notebook.append_page (_routes->widget (), *nlabel);
 568         nlabel = manage (new Label (_("Snapshots")));
 569         nlabel->set_angle (-90);
 570         the_notebook.append_page (_snapshots->widget (), *nlabel);
 571         nlabel = manage (new Label (_("Route Groups")));
 572         nlabel->set_angle (-90);
 573         the_notebook.append_page (_route_groups->widget (), *nlabel);
 574         nlabel = manage (new Label (_("Ranges & Marks")));
 575         nlabel->set_angle (-90);
 576         the_notebook.append_page (_locations->widget (), *nlabel);
 577
 578         the_notebook.set_show_tabs (true);
 579         the_notebook.set_scrollable (true);
 580         the_notebook.popup_disable ();
 581         the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 582         the_notebook.show_all ();
 583
 584         post_maximal_editor_width = 0;
 585         post_maximal_horizontal_pane_position = 0;
 586         post_maximal_editor_height = 0;
 587         post_maximal_vertical_pane_position = 0;
 588
 589         editor_summary_pane.pack1(edit_packer);
 590
 591         Button* summary_arrows_left_left = manage (new Button);
 592         summary_arrows_left_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
 593         summary_arrows_left_left->signal_pressed().connect (sigc::hide_return (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_press)));
 594         summary_arrows_left_left->signal_released().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_release));
 595         Button* summary_arrows_left_right = manage (new Button);
 596         summary_arrows_left_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
 597         summary_arrows_left_right->signal_pressed().connect (sigc::hide_return (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_press)));
 598         summary_arrows_left_right->signal_released().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_release));
 599         VBox* summary_arrows_left = manage (new VBox);
 600         summary_arrows_left->pack_start (*summary_arrows_left_left);
 601         summary_arrows_left->pack_start (*summary_arrows_left_right);
 602
 603         Button* summary_arrows_right_left = manage (new Button);
 604         summary_arrows_right_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
 605         summary_arrows_right_left->signal_pressed().connect (sigc::hide_return (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_press)));
 606         summary_arrows_right_left->signal_released().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_release));
 607         Button* summary_arrows_right_right = manage (new Button);
 608         summary_arrows_right_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
 609         summary_arrows_right_right->signal_pressed().connect (sigc::hide_return (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_press)));
 610         summary_arrows_right_right->signal_released().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_release));
 611         VBox* summary_arrows_right = manage (new VBox);
 612         summary_arrows_right->pack_start (*summary_arrows_right_left);
 613         summary_arrows_right->pack_start (*summary_arrows_right_right);
 614
 615         Frame* summary_frame = manage (new Frame);
 616         summary_frame->set_shadow_type (Gtk::SHADOW_ETCHED_IN);
 617         summary_frame->add (*_summary);
 618         summary_frame->show ();
 619
 620         _summary_hbox.pack_start (*summary_arrows_left, false, false);
 621         _summary_hbox.pack_start (*summary_frame, true, true);
 622         _summary_hbox.pack_start (*summary_arrows_right, false, false);
 623
 624         editor_summary_pane.pack2 (_summary_hbox);
 625
 626         edit_pane.pack1 (editor_summary_pane, true, true);
 627         edit_pane.pack2 (the_notebook, false, true);
 628
 629         editor_summary_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun (*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&editor_summary_pane)));
 630
 631         /* XXX: editor_summary_pane might need similar special OS X treatment to the edit_pane */
 632
 633         edit_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 634 #ifdef GTKOSX
 635         Glib::PropertyProxy<int> proxy = edit_pane.property_position();
 636         proxy.signal_changed().connect (bind (sigc::ptr_fun (pane_size_watcher), static_cast<Paned*> (&edit_pane)));
 637 #endif
 638         top_hbox.pack_start (toolbar_frame, false, true);
 639
 640         HBox *hbox = manage (new HBox);
 641         hbox->pack_start (edit_pane, true, true);
 642
 643         global_vpacker.pack_start (top_hbox, false, false);
 644         global_vpacker.pack_start (*hbox, true, true);
 645
 646         global_hpacker.pack_start (global_vpacker, true, true);
 647
 648         set_name ("EditorWindow");
 649         add_accel_group (ActionManager::ui_manager->get_accel_group());
 650
 651         status_bar_hpacker.show ();
 652
 653         vpacker.pack_end (status_bar_hpacker, false, false);
 654         vpacker.pack_end (global_hpacker, true, true);
 655
 656         /* register actions now so that set_state() can find them and set toggles/checks etc */
 657
 658         register_actions ();
 659
 660         setup_toolbar ();
 661         setup_midi_toolbar ();
 662
 663         _snap_type = SnapToBeat;
 664         set_snap_to (_snap_type);
 665         _snap_mode = SnapOff;
 666         set_snap_mode (_snap_mode);
 667         set_mouse_mode (MouseObject, true);
 668         set_edit_point_preference (EditAtMouse, true);
 669
 670         _playlist_selector = new PlaylistSelector();
 671         _playlist_selector->signal_delete_event().connect (sigc::bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 672
 673         RegionView::RegionViewGoingAway.connect (*this, invalidator (*this),  ui_bind (&Editor::catch_vanishing_regionview, this, _1), gui_context());
 674
 675         /* nudge stuff */
 676
 677         nudge_forward_button.add (*(manage (new Image (::get_icon("nudge_right")))));
 678         nudge_backward_button.add (*(manage (new Image (::get_icon("nudge_left")))));
 679
 680         nudge_forward_button.set_name ("TransportButton");
 681         nudge_backward_button.set_name ("TransportButton");
 682
 683         fade_context_menu.set_name ("ArdourContextMenu");
 684
 685         /* icons, titles, WM stuff */
 686
 687         list<Glib::RefPtr<Gdk::Pixbuf> > window_icons;
 688         Glib::RefPtr<Gdk::Pixbuf> icon;
 689
 690         if ((icon = ::get_icon ("ardour_icon_16px")) != 0) {
 691                 window_icons.push_back (icon);
 692         }
 693         if ((icon = ::get_icon ("ardour_icon_22px")) != 0) {
 694                 window_icons.push_back (icon);
 695         }
 696         if ((icon = ::get_icon ("ardour_icon_32px")) != 0) {
 697                 window_icons.push_back (icon);
 698         }
 699         if ((icon = ::get_icon ("ardour_icon_48px")) != 0) {
 700                 window_icons.push_back (icon);
 701         }
 702         if (!window_icons.empty()) {
 703                 set_icon_list (window_icons);
 704                 set_default_icon_list (window_icons);
 705         }
 706
 707         WindowTitle title(Glib::get_application_name());
 708         title += _("Editor");
 709         set_title (title.get_string());
 710         set_wmclass (X_("ardour_editor"), PROGRAM_NAME);
 711
 712         add (vpacker);
 713         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 714
 715         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 716         signal_delete_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
 717
 718         /* allow external control surfaces/protocols to do various things */
 719
 720         ControlProtocol::ZoomToSession.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_session, this), gui_context());
 721         ControlProtocol::ZoomIn.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_step, this, false), gui_context());
 722         ControlProtocol::ZoomOut.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_step, this, true), gui_context());
 723         ControlProtocol::ScrollTimeline.connect (*this, invalidator (*this), ui_bind (&Editor::control_scroll, this, _1), gui_context());
 724         BasicUI::AccessAction.connect (*this, invalidator (*this), ui_bind (&Editor::access_action, this, _1, _2), gui_context());
 725
 726         /* problematic: has to return a value and thus cannot be x-thread */
 727
 728         Session::AskAboutPlaylistDeletion.connect_same_thread (*this, boost::bind (&Editor::playlist_deletion_dialog, this, _1));
 729
 730         Config->ParameterChanged.connect (*this, invalidator (*this), ui_bind (&Editor::parameter_changed, this, _1), gui_context());
 731
 732         TimeAxisView::CatchDeletion.connect (*this, invalidator (*this), ui_bind (&Editor::timeaxisview_deleted, this, _1), gui_context());
 733
 734         _last_normalization_value = 0;
 735
 736         constructed = true;
 737         instant_save ();
 738 }
 739
 740 Editor::~Editor()
 741 {
 742 #ifdef WITH_CMT
 743         if(image_socket_listener) {
 744                 if(image_socket_listener->is_connected())
 745                 {
 746                         image_socket_listener->close_connection() ;
 747                 }
 748
 749                 delete image_socket_listener ;
 750                 image_socket_listener = 0 ;
 751         }
 752 #endif
 753
 754         delete _routes;
 755         delete _route_groups;
 756         delete track_canvas;
 757         delete _drags;
 758 }
 759
 760 void
 761 Editor::add_toplevel_controls (Container& cont)
 762 {
 763         vpacker.pack_start (cont, false, false);
 764         cont.show_all ();
 765 }
 766
 767 void
 768 Editor::catch_vanishing_regionview (RegionView *rv)
 769 {
 770         /* note: the selection will take care of the vanishing
 771            audioregionview by itself.
 772         */
 773
 774         if (_drags->active() && _drags->have_item (rv->get_canvas_group()) && !_drags->ending()) {
 775                 _drags->abort ();
 776         }
 777
 778         if (clicked_regionview == rv) {
 779                 clicked_regionview = 0;
 780         }
 781
 782         if (entered_regionview == rv) {
 783                 set_entered_regionview (0);
 784         }
 785 }
 786
 787 void
 788 Editor::set_entered_regionview (RegionView* rv)
 789 {
 790         if (rv == entered_regionview) {
 791                 return;
 792         }
 793
 794         if (entered_regionview) {
 795                 entered_regionview->exited ();
 796         }
 797
 798         if ((entered_regionview = rv) != 0) {
 799                 entered_regionview->entered (internal_editing ());
 800         }
 801 }
 802
 803 void
 804 Editor::set_entered_track (TimeAxisView* tav)
 805 {
 806         if (entered_track) {
 807                 entered_track->exited ();
 808         }
 809
 810         if ((entered_track = tav) != 0) {
 811                 entered_track->entered ();
 812         }
 813 }
 814
 815 void
 816 Editor::show_window ()
 817 {
 818         if (! is_visible ()) {
 819                 show_all ();
 820
 821                 /* re-hide editor list if necessary */
 822                 editor_list_button_toggled ();
 823
 824                 /* re-hide summary widget if necessary */
 825                 parameter_changed ("show-summary");
 826
 827                 parameter_changed ("show-edit-group-tabs");
 828
 829                 /* now reset all audio_time_axis heights, because widgets might need
 830                    to be re-hidden
 831                 */
 832
 833                 TimeAxisView *tv;
 834
 835                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 836                         tv = (static_cast<TimeAxisView*>(*i));
 837                         tv->reset_height ();
 838                 }
 839         }
 840
 841         present ();
 842 }
 843
 844 void
 845 Editor::instant_save ()
 846 {
 847         if (!constructed || !ARDOUR_UI::instance()->session_loaded) {
 848                 return;
 849         }
 850
 851         if (_session) {
 852                 _session->add_instant_xml(get_state());
 853         } else {
 854                 Config->add_instant_xml(get_state());
 855         }
 856 }
 857
 858 void
 859 Editor::zoom_adjustment_changed ()
 860 {
 861         if (_session == 0) {
 862                 return;
 863         }
 864
 865         double fpu = zoom_range_clock.current_duration() / _canvas_width;
 866
 867         if (fpu < 1.0) {
 868                 fpu = 1.0;
 869                 zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
 870         } else if (fpu > _session->current_end_frame() / _canvas_width) {
 871                 fpu = _session->current_end_frame() / _canvas_width;
 872                 zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
 873         }
 874
 875         temporal_zoom (fpu);
 876 }
 877
 878 void
 879 Editor::control_scroll (float fraction)
 880 {
 881         ENSURE_GUI_THREAD (*this, &Editor::control_scroll, fraction)
 882
 883         if (!_session) {
 884                 return;
 885         }
 886
 887         double step = fraction * current_page_frames();
 888
 889         /*
 890                 _control_scroll_target is an optional<T>
 891
 892                 it acts like a pointer to an nframes64_t, with
 893                 a operator conversion to boolean to check
 894                 that it has a value could possibly use
 895                 playhead_cursor->current_frame to store the
 896                 value and a boolean in the class to know
 897                 when it's out of date
 898         */
 899
 900         if (!_control_scroll_target) {
 901                 _control_scroll_target = _session->transport_frame();
 902                 _dragging_playhead = true;
 903         }
 904
 905         if ((fraction < 0.0f) && (*_control_scroll_target < (nframes64_t) fabs(step))) {
 906                 *_control_scroll_target = 0;
 907         } else if ((fraction > 0.0f) && (max_frames - *_control_scroll_target < step)) {
 908                 *_control_scroll_target = max_frames - (current_page_frames()*2); // allow room for slop in where the PH is on the screen
 909         } else {
 910                 *_control_scroll_target += (nframes64_t) floor (step);
 911         }
 912
 913         /* move visuals, we'll catch up with it later */
 914
 915         playhead_cursor->set_position (*_control_scroll_target);
 916         UpdateAllTransportClocks (*_control_scroll_target);
 917
 918         if (*_control_scroll_target > (current_page_frames() / 2)) {
 919                 /* try to center PH in window */
 920                 reset_x_origin (*_control_scroll_target - (current_page_frames()/2));
 921         } else {
 922                 reset_x_origin (0);
 923         }
 924
 925         /*
 926                 Now we do a timeout to actually bring the session to the right place
 927                 according to the playhead. This is to avoid reading disk buffers on every
 928                 call to control_scroll, which is driven by ScrollTimeline and therefore
 929                 probably by a control surface wheel which can generate lots of events.
 930         */
 931         /* cancel the existing timeout */
 932
 933         control_scroll_connection.disconnect ();
 934
 935         /* add the next timeout */
 936
 937         control_scroll_connection = Glib::signal_timeout().connect (sigc::bind (sigc::mem_fun (*this, &Editor::deferred_control_scroll), *_control_scroll_target), 250);
 938 }
 939
 940 bool
 941 Editor::deferred_control_scroll (nframes64_t /*target*/)
 942 {
 943         _session->request_locate (*_control_scroll_target, _session->transport_rolling());
 944         // reset for next stream
 945         _control_scroll_target = boost::none;
 946         _dragging_playhead = false;
 947         return false;
 948 }
 949
 950 void
 951 Editor::access_action (std::string action_group, std::string action_item)
 952 {
 953         if (!_session) {
 954                 return;
 955         }
 956
 957         ENSURE_GUI_THREAD (*this, &Editor::access_action, action_group, action_item)
 958
 959         RefPtr<Action> act;
 960         act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
 961
 962         if (act) {
 963                 act->activate();
 964         }
 965 }
 966
 967 void
 968 Editor::on_realize ()
 969 {
 970         Window::on_realize ();
 971         Realized ();
 972 }
 973
 974 void
 975 Editor::map_position_change (nframes64_t frame)
 976 {
 977         ENSURE_GUI_THREAD (*this, &Editor::map_position_change, frame)
 978
 979         if (_session == 0) {
 980                 return;
 981         }
 982
 983         if (_follow_playhead) {
 984                 center_screen (frame);
 985         }
 986
 987         playhead_cursor->set_position (frame);
 988 }
 989
 990 void
 991 Editor::center_screen (nframes64_t frame)
 992 {
 993         double page = _canvas_width * frames_per_unit;
 994
 995         /* if we're off the page, then scroll.
 996          */
 997
 998         if (frame < leftmost_frame || frame >= leftmost_frame + page) {
 999                 center_screen_internal (frame, page);
1000         }
1001 }
1002
1003 void
1004 Editor::center_screen_internal (nframes64_t frame, float page)
1005 {
1006         page /= 2;
1007
1008         if (frame > page) {
1009                 frame -= (nframes64_t) page;
1010         } else {
1011                 frame = 0;
1012         }
1013
1014         reset_x_origin (frame);
1015 }
1016
1017
1018 void
1019 Editor::update_title ()
1020 {
1021         ENSURE_GUI_THREAD (*this, &Editor::update_title)
1022
1023         if (_session) {
1024                 bool dirty = _session->dirty();
1025
1026                 string session_name;
1027
1028                 if (_session->snap_name() != _session->name()) {
1029                         session_name = _session->snap_name();
1030                 } else {
1031                         session_name = _session->name();
1032                 }
1033
1034                 if (dirty) {
1035                         session_name = "*" + session_name;
1036                 }
1037
1038                 WindowTitle title(session_name);
1039                 title += Glib::get_application_name();
1040                 set_title (title.get_string());
1041         }
1042 }
1043
1044 void
1045 Editor::set_session (Session *t)
1046 {
1047         SessionHandlePtr::set_session (t);
1048
1049         if (!_session) {
1050                 return;
1051         }
1052
1053         zoom_range_clock.set_session (_session);
1054         _playlist_selector->set_session (_session);
1055         nudge_clock.set_session (_session);
1056         _summary->set_session (_session);
1057         _group_tabs->set_session (_session);
1058         _route_groups->set_session (_session);
1059         _regions->set_session (_session);
1060         _snapshots->set_session (_session);
1061         _routes->set_session (_session);
1062         _locations->set_session (_session);
1063
1064         if (rhythm_ferret) {
1065                 rhythm_ferret->set_session (_session);
1066         }
1067
1068         if (analysis_window) {
1069                 analysis_window->set_session (_session);
1070         }
1071
1072         if (sfbrowser) {
1073                 sfbrowser->set_session (_session);
1074         }
1075
1076         compute_fixed_ruler_scale ();
1077
1078         /* there are never any selected regions at startup */
1079         sensitize_the_right_region_actions (false);
1080
1081         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
1082         set_state (*node, Stateful::loading_state_version);
1083
1084         /* catch up with the playhead */
1085
1086         _session->request_locate (playhead_cursor->current_frame);
1087         _pending_initial_locate = true;
1088
1089         update_title ();
1090
1091         /* These signals can all be emitted by a non-GUI thread. Therefore the
1092            handlers for them must not attempt to directly interact with the GUI,
1093            but use Gtkmm2ext::UI::instance()->call_slot();
1094         */
1095
1096         _session->StepEditStatusChange.connect (_session_connections, invalidator (*this), ui_bind(&Editor::step_edit_status_change, this, _1), gui_context());
1097         _session->TransportStateChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_transport_state, this), gui_context());
1098         _session->PositionChanged.connect (_session_connections, invalidator (*this), ui_bind (&Editor::map_position_change, this, _1), gui_context());
1099         _session->RouteAdded.connect (_session_connections, invalidator (*this), ui_bind (&Editor::handle_new_route, this, _1), gui_context());
1100         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::update_title, this), gui_context());
1101         _session->TimecodeOffsetChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::update_just_timecode, this), gui_context());
1102         _session->tempo_map().PropertyChanged.connect (_session_connections, invalidator (*this), ui_bind (&Editor::tempo_map_changed, this, _1), gui_context());
1103         _session->Located.connect (_session_connections, invalidator (*this), boost::bind (&Editor::located, this), gui_context());
1104         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), ui_bind (&Editor::parameter_changed, this, _1), gui_context());
1105         _session->StateSaved.connect (_session_connections, invalidator (*this), ui_bind (&Editor::session_state_saved, this, _1), gui_context());
1106         _session->locations()->added.connect (_session_connections, invalidator (*this), ui_bind (&Editor::add_new_location, this, _1), gui_context());
1107         _session->locations()->removed.connect (_session_connections, invalidator (*this), ui_bind (&Editor::location_gone, this, _1), gui_context());
1108         _session->locations()->changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::refresh_location_display, this), gui_context());
1109         _session->locations()->StateChanged.connect (_session_connections, invalidator (*this), ui_bind (&Editor::refresh_location_display_s, this, _1), gui_context());
1110         _session->history().Changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::history_changed, this), gui_context());
1111
1112         if (Profile->get_sae()) {
1113                 BBT_Time bbt;
1114                 bbt.bars = 0;
1115                 bbt.beats = 0;
1116                 bbt.ticks = 120;
1117                 nframes_t pos = _session->tempo_map().bbt_duration_at (0, bbt, 1);
1118                 nudge_clock.set_mode(AudioClock::BBT);
1119                 nudge_clock.set (pos, true, 0, AudioClock::BBT);
1120
1121         } else {
1122                 nudge_clock.set (_session->frame_rate() * 5, true, 0, AudioClock::Timecode); // default of 5 seconds
1123         }
1124
1125         playhead_cursor->canvas_item.show ();
1126
1127         Location* loc = _session->locations()->auto_loop_location();
1128         if (loc == 0) {
1129                 loc = new Location (*_session, 0, _session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
1130                 if (loc->start() == loc->end()) {
1131                         loc->set_end (loc->start() + 1);
1132                 }
1133                 _session->locations()->add (loc, false);
1134                 _session->set_auto_loop_location (loc);
1135         } else {
1136                 // force name
1137                 loc->set_name (_("Loop"));
1138         }
1139
1140         loc = _session->locations()->auto_punch_location();
1141         if (loc == 0) {
1142                 loc = new Location (*_session, 0, _session->current_end_frame(), _("Punch"), (Location::Flags) (Location::IsAutoPunch | Location::IsHidden));
1143                 if (loc->start() == loc->end()) {
1144                         loc->set_end (loc->start() + 1);
1145                 }
1146                 _session->locations()->add (loc, false);
1147                 _session->set_auto_punch_location (loc);
1148         } else {
1149                 // force name
1150                 loc->set_name (_("Punch"));
1151         }
1152
1153         boost::function<void (string)> pc (boost::bind (&Editor::parameter_changed, this, _1));
1154         Config->map_parameters (pc);
1155         _session->config.map_parameters (pc);
1156
1157         refresh_location_display ();
1158
1159         restore_ruler_visibility ();
1160         //tempo_map_changed (PropertyChange (0));
1161         _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
1162
1163         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1164                 (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
1165         }
1166
1167         super_rapid_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
1168                 sigc::mem_fun (*this, &Editor::super_rapid_screen_update)
1169                 );
1170
1171         switch (_snap_type) {
1172         case SnapToRegionStart:
1173         case SnapToRegionEnd:
1174         case SnapToRegionSync:
1175         case SnapToRegionBoundary:
1176                 build_region_boundary_cache ();
1177                 break;
1178
1179         default:
1180                 break;
1181         }
1182
1183         /* register for undo history */
1184         _session->register_with_memento_command_factory(_id, this);
1185
1186         start_updating_meters ();
1187 }
1188
1189 void
1190 Editor::build_cursors ()
1191 {
1192         using namespace Gdk;
1193
1194         Gdk::Color mbg ("#000000" ); /* Black */
1195         Gdk::Color mfg ("#0000ff" ); /* Blue. */
1196
1197         {
1198                 RefPtr<Bitmap> source, mask;
1199                 source = Bitmap::create (mag_bits, mag_width, mag_height);
1200                 mask = Bitmap::create (magmask_bits, mag_width, mag_height);
1201                 zoom_cursor = new Gdk::Cursor (source, mask, mfg, mbg, mag_x_hot, mag_y_hot);
1202         }
1203
1204         Gdk::Color fbg ("#ffffff" );
1205         Gdk::Color ffg  ("#000000" );
1206
1207         {
1208                 RefPtr<Bitmap> source, mask;
1209
1210                 source = Bitmap::create (fader_cursor_bits, fader_cursor_width, fader_cursor_height);
1211                 mask = Bitmap::create (fader_cursor_mask_bits, fader_cursor_width, fader_cursor_height);
1212                 fader_cursor = new Gdk::Cursor (source, mask, ffg, fbg, fader_cursor_x_hot, fader_cursor_y_hot);
1213         }
1214
1215         {
1216                 RefPtr<Bitmap> source, mask;
1217                 source = Bitmap::create (speaker_cursor_bits, speaker_cursor_width, speaker_cursor_height);
1218                 mask = Bitmap::create (speaker_cursor_mask_bits, speaker_cursor_width, speaker_cursor_height);
1219                 speaker_cursor = new Gdk::Cursor (source, mask, ffg, fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
1220         }
1221
1222         {
1223                 RefPtr<Bitmap> bits;
1224                 char pix[4] = { 0, 0, 0, 0 };
1225                 bits = Bitmap::create (pix, 2, 2);
1226                 Gdk::Color c;
1227                 transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
1228         }
1229
1230         {
1231                 RefPtr<Bitmap> bits;
1232                 char pix[4] = { 0, 0, 0, 0 };
1233                 bits = Bitmap::create (pix, 2, 2);
1234                 Gdk::Color c;
1235                 transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
1236         }
1237
1238
1239         grabber_cursor = new Gdk::Cursor (HAND2);
1240
1241         {
1242                 Glib::RefPtr<Gdk::Pixbuf> grabber_note_pixbuf (::get_icon ("grabber_note"));
1243                 grabber_note_cursor = new Gdk::Cursor (Gdk::Display::get_default(), grabber_note_pixbuf, 5, 10);
1244         }
1245
1246         {
1247                 Glib::RefPtr<Gdk::Pixbuf> grabber_edit_point_pixbuf (::get_icon ("grabber_edit_point"));
1248                 grabber_edit_point_cursor = new Gdk::Cursor (Gdk::Display::get_default(), grabber_edit_point_pixbuf, 5, 17);
1249         }
1250
1251         cross_hair_cursor = new Gdk::Cursor (CROSSHAIR);
1252         trimmer_cursor =  new Gdk::Cursor (SB_H_DOUBLE_ARROW);
1253
1254         {
1255                 Glib::RefPtr<Gdk::Pixbuf> apixbuf (::get_icon ("trim_left_cursor"));
1256                 left_side_trim_cursor = new Gdk::Cursor (Gdk::Display::get_default(), apixbuf, 5, 11);
1257         }
1258
1259         {
1260                 Glib::RefPtr<Gdk::Pixbuf> apixbuf (::get_icon ("trim_right_cursor"));
1261                 right_side_trim_cursor = new Gdk::Cursor (Gdk::Display::get_default(), apixbuf, 23, 11);
1262         }
1263
1264         {
1265                 Glib::RefPtr<Gdk::Pixbuf> apixbuf (::get_icon ("fade_in_cursor"));
1266                 fade_in_cursor = new Gdk::Cursor (Gdk::Display::get_default(), apixbuf, 0, 40);
1267         }
1268
1269         {
1270                 Glib::RefPtr<Gdk::Pixbuf> apixbuf (::get_icon ("fade_out_cursor"));
1271                 fade_out_cursor = new Gdk::Cursor (Gdk::Display::get_default(), apixbuf, 27, 40);
1272         }
1273
1274         selector_cursor = new Gdk::Cursor (XTERM);
1275         time_fx_cursor = new Gdk::Cursor (SIZING);
1276         wait_cursor = new Gdk::Cursor  (WATCH);
1277         timebar_cursor = new Gdk::Cursor(LEFT_PTR);
1278         midi_pencil_cursor = new Gdk::Cursor (PENCIL);
1279         midi_select_cursor = new Gdk::Cursor (CENTER_PTR);
1280         midi_resize_cursor = new Gdk::Cursor (SIZING);
1281         midi_erase_cursor = new Gdk::Cursor (DRAPED_BOX);
1282         up_down_cursor = new Gdk::Cursor (Gdk::SB_V_DOUBLE_ARROW);
1283 }
1284
1285 /** Pop up a context menu for when the user clicks on a fade in or fade out */
1286 void
1287 Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
1288 {
1289         using namespace Menu_Helpers;
1290         AudioRegionView* arv = static_cast<AudioRegionView*> (item->get_data ("regionview"));
1291
1292         if (arv == 0) {
1293                 fatal << _("programming error: fade in canvas item has no regionview data pointer!") << endmsg;
1294                 /*NOTREACHED*/
1295         }
1296
1297         MenuList& items (fade_context_menu.items());
1298
1299         items.clear ();
1300
1301         switch (item_type) {
1302         case FadeInItem:
1303         case FadeInHandleItem:
1304                 if (arv->audio_region()->fade_in_active()) {
1305                         items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), false)));
1306                 } else {
1307                         items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), true)));
1308                 }
1309
1310                 items.push_back (SeparatorElem());
1311
1312                 if (Profile->get_sae()) {
1313                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1314                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1315                 } else {
1316                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1317                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1318                         items.push_back (MenuElem (_("Slow"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogB)));
1319                         items.push_back (MenuElem (_("Fast"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogA)));
1320                         items.push_back (MenuElem (_("Fastest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Slow)));
1321                 }
1322
1323                 break;
1324
1325         case FadeOutItem:
1326         case FadeOutHandleItem:
1327                 if (arv->audio_region()->fade_out_active()) {
1328                         items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), false)));
1329                 } else {
1330                         items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), true)));
1331                 }
1332
1333                 items.push_back (SeparatorElem());
1334
1335                 if (Profile->get_sae()) {
1336                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1337                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1338                 } else {
1339                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1340                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1341                         items.push_back (MenuElem (_("Slow"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogA)));
1342                         items.push_back (MenuElem (_("Fast"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogB)));
1343                         items.push_back (MenuElem (_("Fastest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Fast)));
1344                 }
1345
1346                 break;
1347
1348         default:
1349                 fatal << _("programming error: ")
1350                       << X_("non-fade canvas item passed to popup_fade_context_menu()")
1351                       << endmsg;
1352                 /*NOTREACHED*/
1353         }
1354
1355         fade_context_menu.popup (button, time);
1356 }
1357
1358 void
1359 Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, nframes64_t frame)
1360 {
1361         using namespace Menu_Helpers;
1362         Menu* (Editor::*build_menu_function)(nframes64_t);
1363         Menu *menu;
1364
1365         switch (item_type) {
1366         case RegionItem:
1367         case RegionViewName:
1368         case RegionViewNameHighlight:
1369         case LeftFrameHandle:
1370         case RightFrameHandle:
1371                 if (with_selection) {
1372                         build_menu_function = &Editor::build_track_selection_context_menu;
1373                 } else {
1374                         build_menu_function = &Editor::build_track_region_context_menu;
1375                 }
1376                 break;
1377
1378         case SelectionItem:
1379                 if (with_selection) {
1380                         build_menu_function = &Editor::build_track_selection_context_menu;
1381                 } else {
1382                         build_menu_function = &Editor::build_track_context_menu;
1383                 }
1384                 break;
1385
1386         case CrossfadeViewItem:
1387                 build_menu_function = &Editor::build_track_crossfade_context_menu;
1388                 break;
1389
1390         case StreamItem:
1391                 if (clicked_routeview->track()) {
1392                         build_menu_function = &Editor::build_track_context_menu;
1393                 } else {
1394                         build_menu_function = &Editor::build_track_bus_context_menu;
1395                 }
1396                 break;
1397
1398         default:
1399                 /* probably shouldn't happen but if it does, we don't care */
1400                 return;
1401         }
1402
1403         menu = (this->*build_menu_function)(frame);
1404         menu->set_name ("ArdourContextMenu");
1405
1406         /* now handle specific situations */
1407
1408         switch (item_type) {
1409         case RegionItem:
1410         case RegionViewName:
1411         case RegionViewNameHighlight:
1412         case LeftFrameHandle:
1413         case RightFrameHandle:
1414                 if (!with_selection) {
1415                         if (region_edit_menu_split_item) {
1416                                 if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
1417                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, true);
1418                                 } else {
1419                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
1420                                 }
1421                         }
1422                         if (region_edit_menu_split_multichannel_item) {
1423                                 if (clicked_regionview && clicked_regionview->region()->n_channels() > 1) {
1424                                         region_edit_menu_split_multichannel_item->set_sensitive (true);
1425                                 } else {
1426                                         region_edit_menu_split_multichannel_item->set_sensitive (false);
1427                                 }
1428                         }
1429                 }
1430                 break;
1431
1432         case SelectionItem:
1433                 break;
1434
1435         case CrossfadeViewItem:
1436                 break;
1437
1438         case StreamItem:
1439                 break;
1440
1441         default:
1442                 /* probably shouldn't happen but if it does, we don't care */
1443                 return;
1444         }
1445
1446         if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
1447
1448                 /* Bounce to disk */
1449
1450                 using namespace Menu_Helpers;
1451                 MenuList& edit_items  = menu->items();
1452
1453                 edit_items.push_back (SeparatorElem());
1454
1455                 switch (clicked_routeview->audio_track()->freeze_state()) {
1456                 case AudioTrack::NoFreeze:
1457                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1458                         break;
1459
1460                 case AudioTrack::Frozen:
1461                         edit_items.push_back (MenuElem (_("Unfreeze"), sigc::mem_fun(*this, &Editor::unfreeze_route)));
1462                         break;
1463
1464                 case AudioTrack::UnFrozen:
1465                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1466                         break;
1467                 }
1468
1469         }
1470
1471         if (item_type == StreamItem && clicked_routeview) {
1472                 clicked_routeview->build_underlay_menu(menu);
1473         }
1474
1475         menu->popup (button, time);
1476 }
1477
1478 Menu*
1479 Editor::build_track_context_menu (nframes64_t)
1480 {
1481         using namespace Menu_Helpers;
1482
1483         MenuList& edit_items = track_context_menu.items();
1484         edit_items.clear();
1485
1486         add_dstream_context_items (edit_items);
1487         return &track_context_menu;
1488 }
1489
1490 Menu*
1491 Editor::build_track_bus_context_menu (nframes64_t)
1492 {
1493         using namespace Menu_Helpers;
1494
1495         MenuList& edit_items = track_context_menu.items();
1496         edit_items.clear();
1497
1498         add_bus_context_items (edit_items);
1499         return &track_context_menu;
1500 }
1501
1502 Menu*
1503 Editor::build_track_region_context_menu (nframes64_t frame)
1504 {
1505         using namespace Menu_Helpers;
1506         MenuList& edit_items  = track_region_context_menu.items();
1507         edit_items.clear();
1508
1509         /* we've just cleared the track region context menu, so the menu that these
1510            two items were on will have disappeared; stop them dangling.
1511         */
1512         region_edit_menu_split_item = 0;
1513         region_edit_menu_split_multichannel_item = 0;
1514
1515         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
1516
1517         if (rtv) {
1518                 boost::shared_ptr<Track> tr;
1519                 boost::shared_ptr<Playlist> pl;
1520
1521                 /* Don't offer a region submenu if we are in internal edit mode, as we don't select regions in this
1522                    mode and so offering region context is somewhat confusing.
1523                 */
1524                 if ((tr = rtv->track()) && ((pl = tr->playlist())) && !internal_editing()) {
1525                         framepos_t framepos = (framepos_t) floor ((double)frame * tr->speed());
1526                         uint32_t regions_at = pl->count_regions_at (framepos);
1527                         list<boost::shared_ptr<Region> > regions_for_menu;
1528
1529                         if (selection->regions.size() > 1) {
1530                                 // there's already a multiple selection: just add a
1531                                 // single region context menu that will act on all
1532                                 // selected regions
1533
1534                                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
1535                                         regions_for_menu.push_back ((*i)->region ());
1536                                 }
1537                         } else {
1538                                 boost::shared_ptr<Region> top_region = pl->top_region_at (framepos);
1539                                 if (top_region) {
1540                                         regions_for_menu.push_back (top_region);
1541                                 }
1542                         }
1543
1544                         add_region_context_items (rtv->view(), regions_for_menu, edit_items, framepos, regions_at > 1);
1545                 }
1546         }
1547
1548         add_dstream_context_items (edit_items);
1549
1550         return &track_region_context_menu;
1551 }
1552
1553 Menu*
1554 Editor::build_track_crossfade_context_menu (nframes64_t frame)
1555 {
1556         using namespace Menu_Helpers;
1557         MenuList& edit_items  = track_crossfade_context_menu.items();
1558         edit_items.clear ();
1559
1560         AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_axisview);
1561
1562         if (atv) {
1563                 boost::shared_ptr<Track> tr;
1564                 boost::shared_ptr<Playlist> pl;
1565                 boost::shared_ptr<AudioPlaylist> apl;
1566
1567                 if ((tr = atv->track()) && ((pl = tr->playlist()) != 0) && ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) != 0)) {
1568
1569                         AudioPlaylist::Crossfades xfades;
1570
1571                         apl->crossfades_at (frame, xfades);
1572
1573                         bool many = xfades.size() > 1;
1574
1575                         for (AudioPlaylist::Crossfades::iterator i = xfades.begin(); i != xfades.end(); ++i) {
1576                                 add_crossfade_context_items (atv->audio_view(), (*i), edit_items, many);
1577                         }
1578
1579                         framepos_t framepos = (framepos_t) floor ((double)frame * tr->speed());
1580                         uint32_t regions_at = pl->count_regions_at (framepos);
1581                         list<boost::shared_ptr<Region> > regions_for_menu;
1582
1583                         if (selection->regions.size() > 1) {
1584                                 // there's already a multiple selection: just add a
1585                                 // single region context menu that will act on all
1586                                 // selected regions
1587
1588                                 for (RegionSelection::iterator i = selection->regions.begin(); i != selection->regions.end(); ++i) {
1589                                         regions_for_menu.push_back ((*i)->region ());
1590                                 }
1591                         } else {
1592                                 boost::shared_ptr<Region> top_region = pl->top_region_at (framepos);
1593                                 if (top_region) {
1594                                         regions_for_menu.push_back (top_region);
1595                                 }
1596                         }
1597
1598                         add_region_context_items (atv->audio_view(), regions_for_menu, edit_items, framepos, regions_at > 1);
1599                 }
1600         }
1601
1602         add_dstream_context_items (edit_items);
1603
1604         return &track_crossfade_context_menu;
1605 }
1606
1607 void
1608 Editor::analyze_region_selection()
1609 {
1610         if (analysis_window == 0) {
1611                 analysis_window = new AnalysisWindow();
1612
1613                 if (_session != 0)
1614                         analysis_window->set_session(_session);
1615
1616                 analysis_window->show_all();
1617         }
1618
1619         analysis_window->set_regionmode();
1620         analysis_window->analyze();
1621
1622         analysis_window->present();
1623 }
1624
1625 void
1626 Editor::analyze_range_selection()
1627 {
1628         if (analysis_window == 0) {
1629                 analysis_window = new AnalysisWindow();
1630
1631                 if (_session != 0)
1632                         analysis_window->set_session(_session);
1633
1634                 analysis_window->show_all();
1635         }
1636
1637         analysis_window->set_rangemode();
1638         analysis_window->analyze();
1639
1640         analysis_window->present();
1641 }
1642
1643 Menu*
1644 Editor::build_track_selection_context_menu (nframes64_t)
1645 {
1646         using namespace Menu_Helpers;
1647         MenuList& edit_items  = track_selection_context_menu.items();
1648         edit_items.clear ();
1649
1650         add_selection_context_items (edit_items);
1651         // edit_items.push_back (SeparatorElem());
1652         // add_dstream_context_items (edit_items);
1653
1654         return &track_selection_context_menu;
1655 }
1656
1657 /** Add context menu items relevant to crossfades.
1658  * @param edit_items List to add the items to.
1659  */
1660 void
1661 Editor::add_crossfade_context_items (AudioStreamView* /*view*/, boost::shared_ptr<Crossfade> xfade, Menu_Helpers::MenuList& edit_items, bool many)
1662 {
1663         using namespace Menu_Helpers;
1664         Menu     *xfade_menu = manage (new Menu);
1665         MenuList& items       = xfade_menu->items();
1666         xfade_menu->set_name ("ArdourContextMenu");
1667         string str;
1668
1669         if (xfade->active()) {
1670                 str = _("Mute");
1671         } else {
1672                 str = _("Unmute");
1673         }
1674
1675         items.push_back (MenuElem (str, sigc::bind (sigc::mem_fun(*this, &Editor::toggle_xfade_active), boost::weak_ptr<Crossfade> (xfade))));
1676         items.push_back (MenuElem (_("Edit..."), sigc::bind (sigc::mem_fun(*this, &Editor::edit_xfade), boost::weak_ptr<Crossfade> (xfade))));
1677
1678         if (xfade->can_follow_overlap()) {
1679
1680                 if (xfade->following_overlap()) {
1681                         str = _("Convert to Short");
1682                 } else {
1683                         str = _("Convert to Full");
1684                 }
1685
1686                 items.push_back (MenuElem (str, sigc::bind (sigc::mem_fun(*this, &Editor::toggle_xfade_length), xfade)));
1687         }
1688
1689         if (many) {
1690                 str = xfade->out()->name();
1691                 str += "->";
1692                 str += xfade->in()->name();
1693         } else {
1694                 str = _("Crossfade");
1695         }
1696
1697         edit_items.push_back (MenuElem (str, *xfade_menu));
1698         edit_items.push_back (SeparatorElem());
1699 }
1700
1701 void
1702 Editor::xfade_edit_left_region ()
1703 {
1704         if (clicked_crossfadeview) {
1705                 clicked_crossfadeview->left_view.show_region_editor ();
1706         }
1707 }
1708
1709 void
1710 Editor::xfade_edit_right_region ()
1711 {
1712         if (clicked_crossfadeview) {
1713                 clicked_crossfadeview->right_view.show_region_editor ();
1714         }
1715 }
1716
1717 void
1718 Editor::add_region_context_items (StreamView* sv, list<boost::shared_ptr<Region> > regions, Menu_Helpers::MenuList& edit_items,
1719                                   framepos_t position, bool multiple_regions_at_position)
1720 {
1721         using namespace Menu_Helpers;
1722         Gtk::MenuItem* foo_item;
1723         Menu     *region_menu = manage (new Menu);
1724         MenuList& items       = region_menu->items();
1725         region_menu->set_name ("ArdourContextMenu");
1726
1727         /* Look through the regions that we are handling and make notes about what we have got */
1728
1729         bool have_audio = false;
1730         bool have_midi = false;
1731         bool have_locked = false;
1732         bool have_unlocked = false;
1733         bool have_position_lock_style_audio = false;
1734         bool have_position_lock_style_music = false;
1735         bool have_muted = false;
1736         bool have_unmuted = false;
1737         bool have_opaque = false;
1738         bool have_non_opaque = false;
1739         bool have_not_at_natural_position = false;
1740         bool have_envelope_visible = false;
1741         bool have_envelope_invisible = false;
1742         bool have_envelope_active = false;
1743         bool have_envelope_inactive = false;
1744         bool have_non_unity_scale_amplitude = false;
1745
1746         for (list<boost::shared_ptr<Region> >::const_iterator i = regions.begin(); i != regions.end(); ++i) {
1747                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion> (*i);
1748                 if (ar) {
1749                         have_audio = true;
1750                 }
1751                 if (boost::dynamic_pointer_cast<MidiRegion> (*i)) {
1752                         have_midi = true;
1753                 }
1754
1755                 if ((*i)->locked()) {
1756                         have_locked = true;
1757                 } else {
1758                         have_unlocked = true;
1759                 }
1760
1761                 if ((*i)->position_lock_style() == MusicTime) {
1762                         have_position_lock_style_music = true;
1763                 } else {
1764                         have_position_lock_style_audio = true;
1765                 }
1766
1767                 if ((*i)->muted()) {
1768                         have_muted = true;
1769                 } else {
1770                         have_unmuted = true;
1771                 }
1772
1773                 if ((*i)->opaque()) {
1774                         have_opaque = true;
1775                 } else {
1776                         have_non_opaque = true;
1777                 }
1778
1779                 if (!(*i)->at_natural_position()) {
1780                         have_not_at_natural_position = true;
1781                 }
1782
1783                 if (ar) {
1784                         RegionView* rv = sv->find_view (ar);
1785                         AudioRegionView* arv = dynamic_cast<AudioRegionView*> (rv);
1786
1787                         if (rv && arv && arv->envelope_visible()) {
1788                                 have_envelope_visible = true;
1789                         } else {
1790                                 have_envelope_invisible = true;
1791                         }
1792
1793                         if (ar->envelope_active()) {
1794                                 have_envelope_active = true;
1795                         } else {
1796                                 have_envelope_inactive = true;
1797                         }
1798
1799                         if (ar->scale_amplitude() != 1) {
1800                                 have_non_unity_scale_amplitude = true;
1801                         }
1802                 }
1803         }
1804
1805         if (regions.size() == 1) {
1806
1807                 /* when this particular menu pops up, make the relevant region
1808                    become selected.
1809                 */
1810
1811                 region_menu->signal_map_event().connect (
1812                         sigc::bind (sigc::mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, boost::weak_ptr<Region> (regions.front()))
1813                         );
1814
1815                 items.push_back (MenuElem (_("Rename..."), sigc::mem_fun(*this, &Editor::rename_region)));
1816
1817                 if (have_midi) {
1818                         items.push_back (MenuElem (_("List Editor..."), sigc::mem_fun(*this, &Editor::show_midi_list_editor)));
1819                 }
1820
1821                 items.push_back (MenuElem (_("Region Properties..."), sigc::mem_fun(*this, &Editor::edit_region)));
1822         }
1823
1824         items.push_back (MenuElem (_("Raise to Top Layer"), sigc::mem_fun(*this, &Editor::raise_region_to_top)));
1825         items.push_back (MenuElem (_("Lower to Bottom Layer"), sigc::mem_fun  (*this, &Editor::lower_region_to_bottom)));
1826         items.push_back (SeparatorElem());
1827         items.push_back (MenuElem (_("Define Sync Point"), sigc::mem_fun(*this, &Editor::set_region_sync_from_edit_point)));
1828         if (_edit_point == EditAtMouse) {
1829                 items.back ().set_sensitive (false);
1830         }
1831         items.push_back (MenuElem (_("Remove Sync Point"), sigc::mem_fun(*this, &Editor::remove_region_sync)));
1832         items.push_back (SeparatorElem());
1833
1834         items.push_back (MenuElem (_("Audition"), sigc::mem_fun(*this, &Editor::play_selected_region)));
1835         items.push_back (MenuElem (_("Export..."), sigc::mem_fun(*this, &Editor::export_region)));
1836         items.push_back (MenuElem (_("Bounce"), sigc::mem_fun(*this, &Editor::bounce_region_selection)));
1837
1838         if (have_audio) {
1839                 items.push_back (MenuElem (_("Spectral Analysis..."), sigc::mem_fun(*this, &Editor::analyze_region_selection)));
1840         }
1841
1842         items.push_back (SeparatorElem());
1843
1844         items.push_back (CheckMenuElem (_("Lock")));
1845         CheckMenuItem* region_lock_item = static_cast<CheckMenuItem*>(&items.back());
1846         if (have_locked && !have_unlocked) {
1847                 region_lock_item->set_active();
1848         } else if (have_locked && have_unlocked) {
1849                 region_lock_item->set_inconsistent ();
1850         }
1851         region_lock_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_lock));
1852
1853         items.push_back (CheckMenuElem (_("Glue to Bars and Beats")));
1854         CheckMenuItem* bbt_glue_item = static_cast<CheckMenuItem*>(&items.back());
1855
1856         if (have_position_lock_style_music && !have_position_lock_style_audio) {
1857                 bbt_glue_item->set_active ();
1858         } else if (have_position_lock_style_music && have_position_lock_style_audio) {
1859                 bbt_glue_item->set_inconsistent ();
1860         }
1861
1862         bbt_glue_item->signal_activate().connect (sigc::mem_fun (*this, &Editor::toggle_region_lock_style));
1863
1864         items.push_back (CheckMenuElem (_("Mute")));
1865         CheckMenuItem* region_mute_item = static_cast<CheckMenuItem*>(&items.back());
1866
1867         if (have_muted && !have_unmuted) {
1868                 region_mute_item->set_active();
1869         } else if (have_muted && have_unmuted) {
1870                 region_mute_item->set_inconsistent ();
1871         }
1872
1873         region_mute_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_mute));
1874
1875         items.push_back (MenuElem (_("Transpose..."), mem_fun(*this, &Editor::pitch_shift_regions)));
1876
1877         if (!Profile->get_sae()) {
1878                 items.push_back (CheckMenuElem (_("Opaque")));
1879                 CheckMenuItem* region_opaque_item = static_cast<CheckMenuItem*>(&items.back());
1880                 if (have_opaque && !have_non_opaque) {
1881                         region_opaque_item->set_active();
1882                 } else if (have_opaque && have_non_opaque) {
1883                         region_opaque_item->set_inconsistent ();
1884                 }
1885                 region_opaque_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_opaque));
1886         }
1887
1888         items.push_back (CheckMenuElem (_("Original Position"), sigc::mem_fun(*this, &Editor::naturalize)));
1889         if (!have_not_at_natural_position) {
1890                 items.back().set_sensitive (false);
1891         }
1892
1893         items.push_back (SeparatorElem());
1894
1895         if (have_audio) {
1896
1897                 if (!Profile->get_sae()) {
1898                         items.push_back (MenuElem (_("Reset Envelope"), sigc::mem_fun(*this, &Editor::reset_region_gain_envelopes)));
1899
1900                         items.push_back (CheckMenuElem (_("Envelope Visible")));
1901                         CheckMenuItem* region_envelope_visible_item = static_cast<CheckMenuItem*> (&items.back());
1902                         if (have_envelope_visible && !have_envelope_invisible) {
1903                                 region_envelope_visible_item->set_active ();
1904                         } else if (have_envelope_visible && have_envelope_invisible) {
1905                                 region_envelope_visible_item->set_inconsistent ();
1906                         }
1907                         region_envelope_visible_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_gain_envelope_visibility));
1908
1909                         items.push_back (CheckMenuElem (_("Envelope Active")));
1910                         CheckMenuItem* region_envelope_active_item = static_cast<CheckMenuItem*> (&items.back());
1911
1912                         if (have_envelope_active && !have_envelope_inactive) {
1913                                 region_envelope_active_item->set_active ();
1914                         } else if (have_envelope_active && have_envelope_inactive) {
1915                                 region_envelope_active_item->set_inconsistent ();
1916                         }
1917
1918                         region_envelope_active_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_gain_envelope_active));
1919                         items.push_back (SeparatorElem());
1920                 }
1921
1922                 items.push_back (MenuElem (_("Normalize..."), sigc::mem_fun(*this, &Editor::normalize_region)));
1923                 if (have_non_unity_scale_amplitude) {
1924                         items.push_back (MenuElem (_("Reset Gain"), sigc::mem_fun(*this, &Editor::reset_region_scale_amplitude)));
1925                 }
1926
1927         } else if (have_midi) {
1928                 items.push_back (MenuElem (_("Quantize"), sigc::mem_fun(*this, &Editor::quantize_region)));
1929                 items.push_back (MenuElem (_("Fork"), sigc::mem_fun(*this, &Editor::fork_region)));
1930                 items.push_back (SeparatorElem());
1931         }
1932
1933         items.push_back (MenuElem (_("Strip Silence..."), sigc::mem_fun (*this, &Editor::strip_region_silence)));
1934         items.push_back (MenuElem (_("Reverse"), sigc::mem_fun(*this, &Editor::reverse_region)));
1935         items.push_back (SeparatorElem());
1936
1937         /* range related stuff */
1938
1939         items.push_back (MenuElem (_("Add Single Range"), sigc::mem_fun (*this, &Editor::add_location_from_audio_region)));
1940         items.push_back (MenuElem (_("Add Range Markers"), sigc::mem_fun (*this, &Editor::add_locations_from_audio_region)));
1941         if (selection->regions.size() < 2) {
1942                 items.back().set_sensitive (false);
1943         }
1944
1945         items.push_back (MenuElem (_("Set Range Selection"), sigc::mem_fun (*this, &Editor::set_selection_from_region)));
1946         items.push_back (SeparatorElem());
1947
1948         /* Nudge region */
1949
1950         Menu *nudge_menu = manage (new Menu());
1951         MenuList& nudge_items = nudge_menu->items();
1952         nudge_menu->set_name ("ArdourContextMenu");
1953
1954         nudge_items.push_back (MenuElem (_("Nudge Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_forward), false, false))));
1955         nudge_items.push_back (MenuElem (_("Nudge Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_backward), false, false))));
1956         nudge_items.push_back (MenuElem (_("Nudge Forward by Capture Offset"), (sigc::mem_fun(*this, &Editor::nudge_forward_capture_offset))));
1957         nudge_items.push_back (MenuElem (_("Nudge Backward by Capture Offset"), (sigc::mem_fun(*this, &Editor::nudge_backward_capture_offset))));
1958
1959         items.push_back (MenuElem (_("Nudge"), *nudge_menu));
1960         items.push_back (SeparatorElem());
1961
1962         Menu *trim_menu = manage (new Menu);
1963         MenuList& trim_items = trim_menu->items();
1964         trim_menu->set_name ("ArdourContextMenu");
1965
1966         trim_items.push_back (MenuElem (_("Start to Edit Point"), sigc::mem_fun(*this, &Editor::trim_region_from_edit_point)));
1967         foo_item = &trim_items.back();
1968         if (_edit_point == EditAtMouse) {
1969                 foo_item->set_sensitive (false);
1970         }
1971         trim_items.push_back (MenuElem (_("Edit Point to End"), sigc::mem_fun(*this, &Editor::trim_region_to_edit_point)));
1972         foo_item = &trim_items.back();
1973         if (_edit_point == EditAtMouse) {
1974                 foo_item->set_sensitive (false);
1975         }
1976         trim_items.push_back (MenuElem (_("Trim to Loop"), sigc::mem_fun(*this, &Editor::trim_region_to_loop)));
1977         trim_items.push_back (MenuElem (_("Trim to Punch"), sigc::mem_fun(*this, &Editor::trim_region_to_punch)));
1978
1979         items.push_back (MenuElem (_("Trim"), *trim_menu));
1980         items.push_back (SeparatorElem());
1981
1982         items.push_back (MenuElem (_("Split"), (sigc::mem_fun(*this, &Editor::split))));
1983         region_edit_menu_split_item = &items.back();
1984
1985         if (_edit_point == EditAtMouse) {
1986                 region_edit_menu_split_item->set_sensitive (false);
1987         }
1988
1989         if (have_audio) {
1990                 items.push_back (MenuElem (_("Make Mono Regions"), (sigc::mem_fun(*this, &Editor::split_multichannel_region))));
1991                 region_edit_menu_split_multichannel_item = &items.back();
1992         }
1993
1994         items.push_back (MenuElem (_("Duplicate"), (sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), false))));
1995         items.push_back (MenuElem (_("Multi-Duplicate..."), (sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), true))));
1996         items.push_back (MenuElem (_("Fill Track"), (sigc::mem_fun(*this, &Editor::region_fill_track))));
1997         items.push_back (SeparatorElem());
1998         items.push_back (MenuElem (_("Remove"), sigc::mem_fun(*this, &Editor::remove_selected_regions)));
1999
2000         /* OK, stick the region submenu at the top of the list, and then add
2001            the standard items.
2002         */
2003
2004         /* we have to hack up the region name because "_" has a special
2005            meaning for menu titles.
2006         */
2007
2008         string::size_type pos = 0;
2009         string menu_item_name = (regions.size() == 1) ? regions.front()->name() : _("Selected Regions");
2010
2011         while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
2012                 menu_item_name.replace (pos, 1, "__");
2013                 pos += 2;
2014         }
2015
2016         edit_items.push_back (MenuElem (menu_item_name, *region_menu));
2017         if (multiple_regions_at_position && (layering_order_editor == 0 || !layering_order_editor->is_visible ())) {
2018                 edit_items.push_back (MenuElem (_("Choose Top Region..."), (bind (mem_fun(*this, &Editor::change_region_layering_order), position))));
2019         }
2020         edit_items.push_back (SeparatorElem());
2021 }
2022
2023 /** Add context menu items relevant to selection ranges.
2024  * @param edit_items List to add the items to.
2025  */
2026 void
2027 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
2028 {
2029         using namespace Menu_Helpers;
2030
2031         edit_items.push_back (MenuElem (_("Play Range"), sigc::mem_fun(*this, &Editor::play_selection)));
2032         edit_items.push_back (MenuElem (_("Loop Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), true)));
2033
2034         edit_items.push_back (SeparatorElem());
2035         edit_items.push_back (MenuElem (_("Spectral Analysis"), sigc::mem_fun(*this, &Editor::analyze_range_selection)));
2036
2037         if (!selection->regions.empty()) {
2038                 edit_items.push_back (SeparatorElem());
2039                 edit_items.push_back (MenuElem (_("Extend Range to End of Region"), sigc::bind (sigc::mem_fun(*this, &Editor::extend_selection_to_end_of_region), false)));
2040                 edit_items.push_back (MenuElem (_("Extend Range to Start of Region"), sigc::bind (sigc::mem_fun(*this, &Editor::extend_selection_to_start_of_region), false)));
2041         }
2042
2043         edit_items.push_back (SeparatorElem());
2044         edit_items.push_back (MenuElem (_("Convert to region in-place"), mem_fun(*this, &Editor::separate_region_from_selection)));
2045         edit_items.push_back (MenuElem (_("Convert to Region in Region List"), sigc::mem_fun(*this, &Editor::new_region_from_selection)));
2046
2047         edit_items.push_back (SeparatorElem());
2048         edit_items.push_back (MenuElem (_("Select All in Range"), sigc::mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
2049
2050         edit_items.push_back (SeparatorElem());
2051         edit_items.push_back (MenuElem (_("Set Loop from Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), false)));
2052         edit_items.push_back (MenuElem (_("Set Punch from Range"), sigc::mem_fun(*this, &Editor::set_punch_from_selection)));
2053
2054         edit_items.push_back (SeparatorElem());
2055         edit_items.push_back (MenuElem (_("Add Range Markers"), sigc::mem_fun (*this, &Editor::add_location_from_selection)));
2056
2057         edit_items.push_back (SeparatorElem());
2058         edit_items.push_back (MenuElem (_("Crop Region to Range"), sigc::mem_fun(*this, &Editor::crop_region_to_selection)));
2059         edit_items.push_back (MenuElem (_("Fill Range with Region"), sigc::mem_fun(*this, &Editor::region_fill_selection)));
2060         edit_items.push_back (MenuElem (_("Duplicate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), false)));
2061
2062         edit_items.push_back (SeparatorElem());
2063         edit_items.push_back (MenuElem (_("Consolidate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, false)));
2064         edit_items.push_back (MenuElem (_("Consolidate Range With Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, true)));
2065         edit_items.push_back (MenuElem (_("Bounce Range to Region List"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, false)));
2066         edit_items.push_back (MenuElem (_("Bounce Range to Region List With Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, true)));
2067         edit_items.push_back (MenuElem (_("Export Range"), sigc::mem_fun(*this, &Editor::export_selection)));
2068 }
2069
2070
2071 void
2072 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
2073 {
2074         using namespace Menu_Helpers;
2075
2076         /* Playback */
2077
2078         Menu *play_menu = manage (new Menu);
2079         MenuList& play_items = play_menu->items();
2080         play_menu->set_name ("ArdourContextMenu");
2081
2082         play_items.push_back (MenuElem (_("Play From Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
2083         play_items.push_back (MenuElem (_("Play From Start"), sigc::mem_fun(*this, &Editor::play_from_start)));
2084         play_items.push_back (MenuElem (_("Play Region"), sigc::mem_fun(*this, &Editor::play_selected_region)));
2085         play_items.push_back (SeparatorElem());
2086         play_items.push_back (MenuElem (_("Loop Region"), sigc::mem_fun(*this, &Editor::loop_selected_region)));
2087
2088         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2089
2090         /* Selection */
2091
2092         Menu *select_menu = manage (new Menu);
2093         MenuList& select_items = select_menu->items();
2094         select_menu->set_name ("ArdourContextMenu");
2095
2096         select_items.push_back (MenuElem (_("Select All in Track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2097         select_items.push_back (MenuElem (_("Select All"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all), Selection::Set)));
2098         select_items.push_back (MenuElem (_("Invert Selection in Track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
2099         select_items.push_back (MenuElem (_("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
2100         select_items.push_back (SeparatorElem());
2101         select_items.push_back (MenuElem (_("Set Range to Loop Range"), sigc::mem_fun(*this, &Editor::set_selection_from_loop)));
2102         select_items.push_back (MenuElem (_("Set Range to Punch Range"), sigc::mem_fun(*this, &Editor::set_selection_from_punch)));
2103         select_items.push_back (SeparatorElem());
2104         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
2105         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
2106         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2107         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2108         select_items.push_back (MenuElem (_("Select All Between Playhead and Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), false)));
2109         select_items.push_back (MenuElem (_("Select All Within Playhead and Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), true)));
2110         select_items.push_back (MenuElem (_("Select Range Between Playhead and Edit Point"), sigc::mem_fun(*this, &Editor::select_range_between)));
2111
2112         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2113
2114         /* Cut-n-Paste */
2115
2116         Menu *cutnpaste_menu = manage (new Menu);
2117         MenuList& cutnpaste_items = cutnpaste_menu->items();
2118         cutnpaste_menu->set_name ("ArdourContextMenu");
2119
2120         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
2121         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
2122         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f)));
2123
2124         cutnpaste_items.push_back (SeparatorElem());
2125
2126         cutnpaste_items.push_back (MenuElem (_("Align"), sigc::bind (sigc::mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
2127         cutnpaste_items.push_back (MenuElem (_("Align Relative"), sigc::bind (sigc::mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
2128
2129         edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
2130
2131         /* Adding new material */
2132
2133         edit_items.push_back (SeparatorElem());
2134         edit_items.push_back (MenuElem (_("Insert Selected Region"), sigc::bind (sigc::mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
2135         edit_items.push_back (MenuElem (_("Insert Existing Media"), sigc::bind (sigc::mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
2136
2137         /* Nudge track */
2138
2139         Menu *nudge_menu = manage (new Menu());
2140         MenuList& nudge_items = nudge_menu->items();
2141         nudge_menu->set_name ("ArdourContextMenu");
2142
2143         edit_items.push_back (SeparatorElem());
2144         nudge_items.push_back (MenuElem (_("Nudge Entire Track Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2145         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2146         nudge_items.push_back (MenuElem (_("Nudge Entire Track Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2147         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2148
2149         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2150 }
2151
2152 void
2153 Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
2154 {
2155         using namespace Menu_Helpers;
2156
2157         /* Playback */
2158
2159         Menu *play_menu = manage (new Menu);
2160         MenuList& play_items = play_menu->items();
2161         play_menu->set_name ("ArdourContextMenu");
2162
2163         play_items.push_back (MenuElem (_("Play From Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
2164         play_items.push_back (MenuElem (_("Play From Start"), sigc::mem_fun(*this, &Editor::play_from_start)));
2165         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2166
2167         /* Selection */
2168
2169         Menu *select_menu = manage (new Menu);
2170         MenuList& select_items = select_menu->items();
2171         select_menu->set_name ("ArdourContextMenu");
2172
2173         select_items.push_back (MenuElem (_("Select All in Track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2174         select_items.push_back (MenuElem (_("Select All"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all), Selection::Set)));
2175         select_items.push_back (MenuElem (_("Invert Selection in Track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
2176         select_items.push_back (MenuElem (_("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
2177         select_items.push_back (SeparatorElem());
2178         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
2179         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
2180         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2181         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2182
2183         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2184
2185         /* Cut-n-Paste */
2186
2187         Menu *cutnpaste_menu = manage (new Menu);
2188         MenuList& cutnpaste_items = cutnpaste_menu->items();
2189         cutnpaste_menu->set_name ("ArdourContextMenu");
2190
2191         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
2192         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
2193         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f)));
2194
2195         Menu *nudge_menu = manage (new Menu());
2196         MenuList& nudge_items = nudge_menu->items();
2197         nudge_menu->set_name ("ArdourContextMenu");
2198
2199         edit_items.push_back (SeparatorElem());
2200         nudge_items.push_back (MenuElem (_("Nudge Entire Track Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2201         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Forward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2202         nudge_items.push_back (MenuElem (_("Nudge Entire Track Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2203         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Backward"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2204
2205         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2206 }
2207
2208 SnapType
2209 Editor::snap_type() const
2210 {
2211         return _snap_type;
2212 }
2213
2214 SnapMode
2215 Editor::snap_mode() const
2216 {
2217         return _snap_mode;
2218 }
2219
2220 void
2221 Editor::set_snap_to (SnapType st)
2222 {
2223         unsigned int snap_ind = (unsigned int)st;
2224
2225         _snap_type = st;
2226
2227         if (snap_ind > snap_type_strings.size() - 1) {
2228                 snap_ind = 0;
2229                 _snap_type = (SnapType)snap_ind;
2230         }
2231
2232         string str = snap_type_strings[snap_ind];
2233
2234         if (str != snap_type_selector.get_active_text()) {
2235                 snap_type_selector.set_active_text (str);
2236         }
2237
2238         instant_save ();
2239
2240         switch (_snap_type) {
2241         case SnapToBeatDiv32:
2242         case SnapToBeatDiv28:
2243         case SnapToBeatDiv24:
2244         case SnapToBeatDiv20:
2245         case SnapToBeatDiv16:
2246         case SnapToBeatDiv14:
2247         case SnapToBeatDiv12:
2248         case SnapToBeatDiv10:
2249         case SnapToBeatDiv8:
2250         case SnapToBeatDiv7:
2251         case SnapToBeatDiv6:
2252         case SnapToBeatDiv5:
2253         case SnapToBeatDiv4:
2254         case SnapToBeatDiv3:
2255         case SnapToBeatDiv2:
2256                 compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
2257                 update_tempo_based_rulers ();
2258                 break;
2259
2260         case SnapToRegionStart:
2261         case SnapToRegionEnd:
2262         case SnapToRegionSync:
2263         case SnapToRegionBoundary:
2264                 build_region_boundary_cache ();
2265                 break;
2266
2267         default:
2268                 /* relax */
2269                 break;
2270         }
2271
2272         SnapChanged (); /* EMIT SIGNAL */
2273 }
2274
2275 void
2276 Editor::set_snap_mode (SnapMode mode)
2277 {
2278         _snap_mode = mode;
2279         string str = snap_mode_strings[(int)mode];
2280
2281         if (str != snap_mode_selector.get_active_text ()) {
2282                 snap_mode_selector.set_active_text (str);
2283         }
2284
2285         instant_save ();
2286 }
2287 void
2288 Editor::set_edit_point_preference (EditPoint ep, bool force)
2289 {
2290         bool changed = (_edit_point != ep);
2291
2292         _edit_point = ep;
2293         string str = edit_point_strings[(int)ep];
2294
2295         if (str != edit_point_selector.get_active_text ()) {
2296                 edit_point_selector.set_active_text (str);
2297         }
2298
2299         set_canvas_cursor ();
2300
2301         if (!force && !changed) {
2302                 return;
2303         }
2304
2305         const char* action=NULL;
2306
2307         switch (_edit_point) {
2308         case EditAtPlayhead:
2309                 action = "edit-at-playhead";
2310                 break;
2311         case EditAtSelectedMarker:
2312                 action = "edit-at-marker";
2313                 break;
2314         case EditAtMouse:
2315                 action = "edit-at-mouse";
2316                 break;
2317         }
2318
2319         Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
2320         if (act) {
2321                 Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
2322         }
2323
2324         nframes64_t foo;
2325         bool in_track_canvas;
2326
2327         if (!mouse_frame (foo, in_track_canvas)) {
2328                 in_track_canvas = false;
2329         }
2330
2331         reset_canvas_action_sensitivity (in_track_canvas);
2332
2333         instant_save ();
2334 }
2335
2336 int
2337 Editor::set_state (const XMLNode& node, int /*version*/)
2338 {
2339         const XMLProperty* prop;
2340         XMLNode* geometry;
2341         int x, y, xoff, yoff;
2342         Gdk::Geometry g;
2343
2344         if ((prop = node.property ("id")) != 0) {
2345                 _id = prop->value ();
2346         }
2347
2348         g.base_width = default_width;
2349         g.base_height = default_height;
2350         x = 1;
2351         y = 1;
2352         xoff = 0;
2353         yoff = 21;
2354
2355         if ((geometry = find_named_node (node, "geometry")) != 0) {
2356
2357                 XMLProperty* prop;
2358
2359                 if ((prop = geometry->property("x_size")) == 0) {
2360                         prop = geometry->property ("x-size");
2361                 }
2362                 if (prop) {
2363                         g.base_width = atoi(prop->value());
2364                 }
2365                 if ((prop = geometry->property("y_size")) == 0) {
2366                         prop = geometry->property ("y-size");
2367                 }
2368                 if (prop) {
2369                         g.base_height = atoi(prop->value());
2370                 }
2371
2372                 if ((prop = geometry->property ("x_pos")) == 0) {
2373                         prop = geometry->property ("x-pos");
2374                 }
2375                 if (prop) {
2376                         x = atoi (prop->value());
2377
2378                 }
2379                 if ((prop = geometry->property ("y_pos")) == 0) {
2380                         prop = geometry->property ("y-pos");
2381                 }
2382                 if (prop) {
2383                         y = atoi (prop->value());
2384                 }
2385
2386                 if ((prop = geometry->property ("x_off")) == 0) {
2387                         prop = geometry->property ("x-off");
2388                 }
2389                 if (prop) {
2390                         xoff = atoi (prop->value());
2391                 }
2392                 if ((prop = geometry->property ("y_off")) == 0) {
2393                         prop = geometry->property ("y-off");
2394                 }
2395                 if (prop) {
2396                         yoff = atoi (prop->value());
2397                 }
2398         }
2399
2400         set_default_size (g.base_width, g.base_height);
2401         move (x, y);
2402
2403         if (_session && (prop = node.property ("playhead"))) {
2404                 nframes64_t pos;
2405                 sscanf (prop->value().c_str(), "%" PRIi64, &pos);
2406                 playhead_cursor->set_position (pos);
2407         } else {
2408                 playhead_cursor->set_position (0);
2409         }
2410
2411         if ((prop = node.property ("mixer-width"))) {
2412                 editor_mixer_strip_width = Width (string_2_enum (prop->value(), editor_mixer_strip_width));
2413         }
2414
2415         if ((prop = node.property ("zoom-focus"))) {
2416                 set_zoom_focus ((ZoomFocus) atoi (prop->value()));
2417         }
2418
2419         if ((prop = node.property ("zoom"))) {
2420                 reset_zoom (PBD::atof (prop->value()));
2421         } else {
2422                 reset_zoom (frames_per_unit);
2423         }
2424
2425         if ((prop = node.property ("snap-to"))) {
2426                 set_snap_to ((SnapType) atoi (prop->value()));
2427         }
2428
2429         if ((prop = node.property ("snap-mode"))) {
2430                 set_snap_mode ((SnapMode) atoi (prop->value()));
2431         }
2432
2433         if ((prop = node.property ("mouse-mode"))) {
2434                 MouseMode m = str2mousemode(prop->value());
2435                 set_mouse_mode (m, true);
2436         } else {
2437                 set_mouse_mode (MouseObject, true);
2438         }
2439
2440         if ((prop = node.property ("left-frame")) != 0){
2441                 nframes64_t pos;
2442                 if (sscanf (prop->value().c_str(), "%" PRId64, &pos) == 1) {
2443                         reset_x_origin (pos);
2444                 }
2445         }
2446
2447         if ((prop = node.property ("y-origin")) != 0) {
2448                 reset_y_origin (atof (prop->value ()));
2449         }
2450
2451         if ((prop = node.property ("internal-edit"))) {
2452                 bool yn = string_is_affirmative (prop->value());
2453                 RefPtr<Action> act = ActionManager::get_action (X_("MouseMode"), X_("toggle-internal-edit"));
2454                 if (act) {
2455                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2456                         tact->set_active (!yn);
2457                         tact->set_active (yn);
2458                 }
2459         }
2460
2461         if ((prop = node.property ("join-object-range"))) {
2462                 join_object_range_button.set_active (string_is_affirmative (prop->value ()));
2463         }
2464
2465         if ((prop = node.property ("edit-point"))) {
2466                 set_edit_point_preference ((EditPoint) string_2_enum (prop->value(), _edit_point), true);
2467         }
2468
2469         if ((prop = node.property ("show-measures"))) {
2470                 bool yn = string_is_affirmative (prop->value());
2471                 _show_measures = yn;
2472                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
2473                 if (act) {
2474                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2475                         /* do it twice to force the change */
2476                         tact->set_active (!yn);
2477                         tact->set_active (yn);
2478                 }
2479         }
2480
2481         if ((prop = node.property ("follow-playhead"))) {
2482                 bool yn = string_is_affirmative (prop->value());
2483                 set_follow_playhead (yn);
2484                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
2485                 if (act) {
2486                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2487                         if (tact->get_active() != yn) {
2488                                 tact->set_active (yn);
2489                         }
2490                 }
2491         }
2492
2493         if ((prop = node.property ("stationary-playhead"))) {
2494                 bool yn = (prop->value() == "yes");
2495                 set_stationary_playhead (yn);
2496                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-stationary-playhead"));
2497                 if (act) {
2498                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2499                         if (tact->get_active() != yn) {
2500                                 tact->set_active (yn);
2501                         }
2502                 }
2503         }
2504
2505         if ((prop = node.property ("region-list-sort-type"))) {
2506                 RegionListSortType st;
2507                 _regions->reset_sort_type ((RegionListSortType) string_2_enum (prop->value(), st), true);
2508         }
2509
2510         if ((prop = node.property ("xfades-visible"))) {
2511                 bool yn = string_is_affirmative (prop->value());
2512                 _xfade_visibility = !yn;
2513                 // set_xfade_visibility (yn);
2514         }
2515
2516         if ((prop = node.property ("show-editor-mixer"))) {
2517
2518                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2519                 if (act) {
2520
2521                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2522                         bool yn = string_is_affirmative (prop->value());
2523
2524                         /* do it twice to force the change */
2525
2526                         tact->set_active (!yn);
2527                         tact->set_active (yn);
2528                 }
2529         }
2530
2531         if ((prop = node.property ("show-editor-list"))) {
2532
2533                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2534                 assert(act);
2535                 if (act) {
2536
2537                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2538                         bool yn = string_is_affirmative (prop->value());
2539
2540                         /* do it twice to force the change */
2541
2542                         tact->set_active (!yn);
2543                         tact->set_active (yn);
2544                 }
2545         }
2546
2547         if ((prop = node.property (X_("editor-list-page")))) {
2548                 the_notebook.set_current_page (atoi (prop->value ()));
2549         }
2550
2551         XMLNodeList children = node.children ();
2552         for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
2553                 selection->set_state (**i, Stateful::current_state_version);
2554         }
2555
2556         return 0;
2557 }
2558
2559 XMLNode&
2560 Editor::get_state ()
2561 {
2562         XMLNode* node = new XMLNode ("Editor");
2563         char buf[32];
2564
2565         _id.print (buf, sizeof (buf));
2566         node->add_property ("id", buf);
2567
2568         if (is_realized()) {
2569                 Glib::RefPtr<Gdk::Window> win = get_window();
2570
2571                 int x, y, xoff, yoff, width, height;
2572                 win->get_root_origin(x, y);
2573                 win->get_position(xoff, yoff);
2574                 win->get_size(width, height);
2575
2576                 XMLNode* geometry = new XMLNode ("geometry");
2577
2578                 snprintf(buf, sizeof(buf), "%d", width);
2579                 geometry->add_property("x-size", string(buf));
2580                 snprintf(buf, sizeof(buf), "%d", height);
2581                 geometry->add_property("y-size", string(buf));
2582                 snprintf(buf, sizeof(buf), "%d", x);
2583                 geometry->add_property("x-pos", string(buf));
2584                 snprintf(buf, sizeof(buf), "%d", y);
2585                 geometry->add_property("y-pos", string(buf));
2586                 snprintf(buf, sizeof(buf), "%d", xoff);
2587                 geometry->add_property("x-off", string(buf));
2588                 snprintf(buf, sizeof(buf), "%d", yoff);
2589                 geometry->add_property("y-off", string(buf));
2590                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
2591                 geometry->add_property("edit-horizontal-pane-pos", string(buf));
2592                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&editor_summary_pane)->gobj()));
2593                 geometry->add_property("edit-vertical-pane-pos", string(buf));
2594
2595                 node->add_child_nocopy (*geometry);
2596         }
2597
2598         maybe_add_mixer_strip_width (*node);
2599
2600         snprintf (buf, sizeof(buf), "%d", (int) zoom_focus);
2601         node->add_property ("zoom-focus", buf);
2602         snprintf (buf, sizeof(buf), "%f", frames_per_unit);
2603         node->add_property ("zoom", buf);
2604         snprintf (buf, sizeof(buf), "%d", (int) _snap_type);
2605         node->add_property ("snap-to", buf);
2606         snprintf (buf, sizeof(buf), "%d", (int) _snap_mode);
2607         node->add_property ("snap-mode", buf);
2608
2609         node->add_property ("edit-point", enum_2_string (_edit_point));
2610
2611         snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame);
2612         node->add_property ("playhead", buf);
2613         snprintf (buf, sizeof (buf), "%" PRIi64, leftmost_frame);
2614         node->add_property ("left-frame", buf);
2615         snprintf (buf, sizeof (buf), "%f", vertical_adjustment.get_value ());
2616         node->add_property ("y-origin", buf);
2617
2618         node->add_property ("show-measures", _show_measures ? "yes" : "no");
2619         node->add_property ("follow-playhead", _follow_playhead ? "yes" : "no");
2620         node->add_property ("stationary-playhead", _stationary_playhead ? "yes" : "no");
2621         node->add_property ("xfades-visible", _xfade_visibility ? "yes" : "no");
2622         node->add_property ("region-list-sort-type", enum_2_string (_regions->sort_type ()));
2623         node->add_property ("mouse-mode", enum2str(mouse_mode));
2624         node->add_property ("internal-edit", _internal_editing ? "yes" : "no");
2625         node->add_property ("join-object-range", join_object_range_button.get_active () ? "yes" : "no");
2626
2627         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2628         if (act) {
2629                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2630                 node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
2631         }
2632
2633         act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2634         if (act) {
2635                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2636                 node->add_property (X_("show-editor-list"), tact->get_active() ? "yes" : "no");
2637         }
2638
2639         snprintf (buf, sizeof (buf), "%d", the_notebook.get_current_page ());
2640         node->add_property (X_("editor-list-page"), buf);
2641
2642         node->add_child_nocopy (selection->get_state ());
2643
2644         return *node;
2645 }
2646
2647
2648
2649 /** @param y y offset from the top of all trackviews.
2650  *  @return pair: TimeAxisView that y is over, layer index.
2651  *  TimeAxisView may be 0.  Layer index is the layer number if the TimeAxisView is valid and is
2652  *  in stacked region display mode, otherwise 0.
2653  */
2654 std::pair<TimeAxisView *, layer_t>
2655 Editor::trackview_by_y_position (double y)
2656 {
2657         for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
2658
2659                 std::pair<TimeAxisView*, int> const r = (*iter)->covers_y_position (y);
2660                 if (r.first) {
2661                         return r;
2662                 }
2663         }
2664
2665         return std::make_pair ( (TimeAxisView *) 0, 0);
2666 }
2667
2668 /** Snap a position to the grid, if appropriate, taking into account current
2669  *  grid settings and also the state of any snap modifier keys that may be pressed.
2670  *  @param start Position to snap.
2671  *  @param event Event to get current key modifier information from, or 0.
2672  */
2673 void
2674 Editor::snap_to_with_modifier (nframes64_t& start, GdkEvent const * event, int32_t direction, bool for_mark)
2675 {
2676         if (!_session || !event) {
2677                 return;
2678         }
2679
2680         if (Keyboard::modifier_state_contains (event->button.state, Keyboard::snap_modifier())) {
2681                 if (_snap_mode == SnapOff) {
2682                         snap_to_internal (start, direction, for_mark);
2683                 }
2684         } else {
2685                 if (_snap_mode != SnapOff) {
2686                         snap_to_internal (start, direction, for_mark);
2687                 }
2688         }
2689 }
2690
2691 void
2692 Editor::snap_to (nframes64_t& start, int32_t direction, bool for_mark)
2693 {
2694         if (!_session || _snap_mode == SnapOff) {
2695                 return;
2696         }
2697
2698         snap_to_internal (start, direction, for_mark);
2699 }
2700
2701 void
2702 Editor::timecode_snap_to_internal (nframes64_t& start, int32_t direction, bool /*for_mark*/)
2703 {
2704         const nframes64_t one_timecode_second = (nframes64_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame());
2705         nframes64_t one_timecode_minute = (nframes64_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame() * 60);
2706
2707         switch (_snap_type) {
2708         case SnapToTimecodeFrame:
2709                 if (((direction == 0) && (fmod((double)start, (double)_session->frames_per_timecode_frame()) > (_session->frames_per_timecode_frame() / 2))) || (direction > 0)) {
2710                         start = (nframes64_t) (ceil ((double) start / _session->frames_per_timecode_frame()) * _session->frames_per_timecode_frame());
2711                 } else {
2712                         start = (nframes64_t) (floor ((double) start / _session->frames_per_timecode_frame()) *  _session->frames_per_timecode_frame());
2713                 }
2714                 break;
2715
2716         case SnapToTimecodeSeconds:
2717                 if (_session->timecode_offset_negative())
2718                 {
2719                         start += _session->timecode_offset ();
2720                 } else {
2721                         start -= _session->timecode_offset ();
2722                 }
2723                 if (((direction == 0) && (start % one_timecode_second > one_timecode_second / 2)) || direction > 0) {
2724                         start = (nframes64_t) ceil ((double) start / one_timecode_second) * one_timecode_second;
2725                 } else {
2726                         start = (nframes64_t) floor ((double) start / one_timecode_second) * one_timecode_second;
2727                 }
2728
2729                 if (_session->timecode_offset_negative())
2730                 {
2731                         start -= _session->timecode_offset ();
2732                 } else {
2733                         start += _session->timecode_offset ();
2734                 }
2735                 break;
2736
2737         case SnapToTimecodeMinutes:
2738                 if (_session->timecode_offset_negative())
2739                 {
2740                         start += _session->timecode_offset ();
2741                 } else {
2742                         start -= _session->timecode_offset ();
2743                 }
2744                 if (((direction == 0) && (start % one_timecode_minute > one_timecode_minute / 2)) || direction > 0) {
2745                         start = (nframes64_t) ceil ((double) start / one_timecode_minute) * one_timecode_minute;
2746                 } else {
2747                         start = (nframes64_t) floor ((double) start / one_timecode_minute) * one_timecode_minute;
2748                 }
2749                 if (_session->timecode_offset_negative())
2750                 {
2751                         start -= _session->timecode_offset ();
2752                 } else {
2753                         start += _session->timecode_offset ();
2754                 }
2755                 break;
2756         default:
2757                 fatal << "Editor::smpte_snap_to_internal() called with non-timecode snap type!" << endmsg;
2758                 /*NOTREACHED*/
2759         }
2760 }
2761
2762 void
2763 Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
2764 {
2765         const nframes64_t one_second = _session->frame_rate();
2766         const nframes64_t one_minute = _session->frame_rate() * 60;
2767         nframes64_t presnap = start;
2768         nframes64_t before;
2769         nframes64_t after;
2770
2771         switch (_snap_type) {
2772         case SnapToTimecodeFrame:
2773         case SnapToTimecodeSeconds:
2774         case SnapToTimecodeMinutes:
2775                 return timecode_snap_to_internal (start, direction, for_mark);
2776
2777         case SnapToCDFrame:
2778                 if (((direction == 0) && (start % (one_second/75) > (one_second/75) / 2)) || (direction > 0)) {
2779                         start = (nframes64_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
2780                 } else {
2781                         start = (nframes64_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
2782                 }
2783                 break;
2784
2785         case SnapToSeconds:
2786                 if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
2787                         start = (nframes64_t) ceil ((double) start / one_second) * one_second;
2788                 } else {
2789                         start = (nframes64_t) floor ((double) start / one_second) * one_second;
2790                 }
2791                 break;
2792
2793         case SnapToMinutes:
2794                 if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
2795                         start = (nframes64_t) ceil ((double) start / one_minute) * one_minute;
2796                 } else {
2797                         start = (nframes64_t) floor ((double) start / one_minute) * one_minute;
2798                 }
2799                 break;
2800
2801         case SnapToBar:
2802                 start = _session->tempo_map().round_to_bar (start, direction);
2803                 break;
2804
2805         case SnapToBeat:
2806                 start = _session->tempo_map().round_to_beat (start, direction);
2807                 break;
2808
2809         case SnapToBeatDiv32:
2810                 start = _session->tempo_map().round_to_beat_subdivision (start, 32, direction);
2811                 break;
2812         case SnapToBeatDiv28:
2813                 start = _session->tempo_map().round_to_beat_subdivision (start, 28, direction);
2814                 break;
2815         case SnapToBeatDiv24:
2816                 start = _session->tempo_map().round_to_beat_subdivision (start, 24, direction);
2817                 break;
2818         case SnapToBeatDiv20:
2819                 start = _session->tempo_map().round_to_beat_subdivision (start, 20, direction);
2820                 break;
2821         case SnapToBeatDiv16:
2822                 start = _session->tempo_map().round_to_beat_subdivision (start, 16, direction);
2823                 break;
2824         case SnapToBeatDiv14:
2825                 start = _session->tempo_map().round_to_beat_subdivision (start, 14, direction);
2826                 break;
2827         case SnapToBeatDiv12:
2828                 start = _session->tempo_map().round_to_beat_subdivision (start, 12, direction);
2829                 break;
2830         case SnapToBeatDiv10:
2831                 start = _session->tempo_map().round_to_beat_subdivision (start, 10, direction);
2832                 break;
2833         case SnapToBeatDiv8:
2834                 start = _session->tempo_map().round_to_beat_subdivision (start, 8, direction);
2835                 break;
2836         case SnapToBeatDiv7:
2837                 start = _session->tempo_map().round_to_beat_subdivision (start, 7, direction);
2838                 break;
2839         case SnapToBeatDiv6:
2840                 start = _session->tempo_map().round_to_beat_subdivision (start, 6, direction);
2841                 break;
2842         case SnapToBeatDiv5:
2843                 start = _session->tempo_map().round_to_beat_subdivision (start, 5, direction);
2844                 break;
2845         case SnapToBeatDiv4:
2846                 start = _session->tempo_map().round_to_beat_subdivision (start, 4, direction);
2847                 break;
2848         case SnapToBeatDiv3:
2849                 start = _session->tempo_map().round_to_beat_subdivision (start, 3, direction);
2850                 break;
2851         case SnapToBeatDiv2:
2852                 start = _session->tempo_map().round_to_beat_subdivision (start, 2, direction);
2853                 break;
2854
2855         case SnapToMark:
2856                 if (for_mark) {
2857                         return;
2858                 }
2859
2860                 _session->locations()->marks_either_side (start, before, after);
2861
2862                 if (before == max_frames) {
2863                         start = after;
2864                 } else if (after == max_frames) {
2865                         start = before;
2866                 } else if (before != max_frames && after != max_frames) {
2867                         /* have before and after */
2868                         if ((start - before) < (after - start)) {
2869                                 start = before;
2870                         } else {
2871                                 start = after;
2872                         }
2873                 }
2874
2875                 break;
2876
2877         case SnapToRegionStart:
2878         case SnapToRegionEnd:
2879         case SnapToRegionSync:
2880         case SnapToRegionBoundary:
2881                 if (!region_boundary_cache.empty()) {
2882
2883                         vector<nframes64_t>::iterator prev = region_boundary_cache.end ();
2884                         vector<nframes64_t>::iterator next = region_boundary_cache.end ();
2885
2886                         if (direction > 0) {
2887                                 next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2888                         } else {
2889                                 next = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2890                         }
2891
2892                         if (next != region_boundary_cache.begin ()) {
2893                                 prev = next;
2894                                 prev--;
2895                         }
2896
2897                         nframes64_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
2898                         nframes64_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
2899
2900                         if (start > (p + n) / 2) {
2901                                 start = n;
2902                         } else {
2903                                 start = p;
2904                         }
2905                 }
2906                 break;
2907         }
2908
2909         switch (_snap_mode) {
2910         case SnapNormal:
2911                 return;
2912
2913         case SnapMagnetic:
2914
2915                 if (presnap > start) {
2916                         if (presnap > (start + unit_to_frame(snap_threshold))) {
2917                                 start = presnap;
2918                         }
2919
2920                 } else if (presnap < start) {
2921                         if (presnap < (start - unit_to_frame(snap_threshold))) {
2922                                 start = presnap;
2923                         }
2924                 }
2925
2926         default:
2927                 /* handled at entry */
2928                 return;
2929
2930         }
2931 }
2932
2933
2934 void
2935 Editor::setup_toolbar ()
2936 {
2937         string pixmap_path;
2938
2939         /* Mode Buttons (tool selection) */
2940
2941         mouse_move_button.set_relief(Gtk::RELIEF_NONE);
2942         mouse_select_button.set_relief(Gtk::RELIEF_NONE);
2943         mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
2944         mouse_zoom_button.set_relief(Gtk::RELIEF_NONE);
2945         mouse_timefx_button.set_relief(Gtk::RELIEF_NONE);
2946         mouse_audition_button.set_relief(Gtk::RELIEF_NONE);
2947         // internal_edit_button.set_relief(Gtk::RELIEF_NONE);
2948         join_object_range_button.set_relief(Gtk::RELIEF_NONE);
2949
2950         HBox* mode_box = manage(new HBox);
2951         mode_box->set_border_width (2);
2952         mode_box->set_spacing(4);
2953
2954         /* table containing mode buttons */
2955
2956         HBox* mouse_mode_button_box = manage (new HBox ());
2957
2958         if (Profile->get_sae()) {
2959                 mouse_mode_button_box->pack_start (mouse_move_button);
2960         } else {
2961                 mouse_mode_button_box->pack_start (mouse_move_button);
2962                 mouse_mode_button_box->pack_start (join_object_range_button);
2963                 mouse_mode_button_box->pack_start (mouse_select_button);
2964         }
2965
2966         mouse_mode_button_box->pack_start (mouse_zoom_button);
2967
2968         if (!Profile->get_sae()) {
2969                 mouse_mode_button_box->pack_start (mouse_gain_button);
2970         }
2971
2972         mouse_mode_button_box->pack_start (mouse_timefx_button);
2973         mouse_mode_button_box->pack_start (mouse_audition_button);
2974         mouse_mode_button_box->pack_start (internal_edit_button);
2975
2976         vector<string> edit_mode_strings;
2977         edit_mode_strings.push_back (edit_mode_to_string (Slide));
2978         if (!Profile->get_sae()) {
2979                 edit_mode_strings.push_back (edit_mode_to_string (Splice));
2980         }
2981         edit_mode_strings.push_back (edit_mode_to_string (Lock));
2982
2983         edit_mode_selector.set_name ("EditModeSelector");
2984         set_popdown_strings (edit_mode_selector, edit_mode_strings, true);
2985         edit_mode_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::edit_mode_selection_done));
2986
2987         mode_box->pack_start (edit_mode_selector);
2988         mode_box->pack_start (*mouse_mode_button_box);
2989
2990         _mouse_mode_tearoff = manage (new TearOff (*mode_box));
2991         _mouse_mode_tearoff->set_name ("MouseModeBase");
2992         _mouse_mode_tearoff->tearoff_window().signal_key_press_event().connect (sigc::bind (sigc::ptr_fun (relay_key_press), &_mouse_mode_tearoff->tearoff_window()), false);
2993
2994         if (Profile->get_sae()) {
2995                 _mouse_mode_tearoff->set_can_be_torn_off (false);
2996         }
2997
2998         _mouse_mode_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2999                                                          &_mouse_mode_tearoff->tearoff_window()));
3000         _mouse_mode_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
3001                                                          &_mouse_mode_tearoff->tearoff_window(), 1));
3002         _mouse_mode_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
3003                                                          &_mouse_mode_tearoff->tearoff_window()));
3004         _mouse_mode_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
3005                                                           &_mouse_mode_tearoff->tearoff_window(), 1));
3006
3007         mouse_move_button.set_mode (false);
3008         mouse_select_button.set_mode (false);
3009         mouse_gain_button.set_mode (false);
3010         mouse_zoom_button.set_mode (false);
3011         mouse_timefx_button.set_mode (false);
3012         mouse_audition_button.set_mode (false);
3013         join_object_range_button.set_mode (false);
3014
3015         mouse_move_button.set_name ("MouseModeButton");
3016         mouse_select_button.set_name ("MouseModeButton");
3017         mouse_gain_button.set_name ("MouseModeButton");
3018         mouse_zoom_button.set_name ("MouseModeButton");
3019         mouse_timefx_button.set_name ("MouseModeButton");
3020         mouse_audition_button.set_name ("MouseModeButton");
3021         internal_edit_button.set_name ("MouseModeButton");
3022         join_object_range_button.set_name ("MouseModeButton");
3023
3024         mouse_move_button.unset_flags (CAN_FOCUS);
3025         mouse_select_button.unset_flags (CAN_FOCUS);
3026         mouse_gain_button.unset_flags (CAN_FOCUS);
3027         mouse_zoom_button.unset_flags (CAN_FOCUS);
3028         mouse_timefx_button.unset_flags (CAN_FOCUS);
3029         mouse_audition_button.unset_flags (CAN_FOCUS);
3030         internal_edit_button.unset_flags (CAN_FOCUS);
3031         join_object_range_button.unset_flags (CAN_FOCUS);
3032
3033         /* Zoom */
3034
3035         _zoom_box.set_spacing (1);
3036         _zoom_box.set_border_width (0);
3037
3038         zoom_in_button.set_name ("EditorTimeButton");
3039         zoom_in_button.set_image (*(manage (new Image (Stock::ZOOM_IN, Gtk::ICON_SIZE_MENU))));
3040         zoom_in_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_step), false));
3041
3042         zoom_out_button.set_name ("EditorTimeButton");
3043         zoom_out_button.set_image (*(manage (new Image (Stock::ZOOM_OUT, Gtk::ICON_SIZE_MENU))));
3044         zoom_out_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_step), true));
3045
3046         zoom_out_full_button.set_name ("EditorTimeButton");
3047         zoom_out_full_button.set_image (*(manage (new Image (Stock::ZOOM_100, Gtk::ICON_SIZE_MENU))));
3048         zoom_out_full_button.signal_clicked().connect (sigc::mem_fun(*this, &Editor::temporal_zoom_session));
3049
3050         zoom_focus_selector.set_name ("ZoomFocusSelector");
3051         set_popdown_strings (zoom_focus_selector, zoom_focus_strings, true);
3052         zoom_focus_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done));
3053
3054         _zoom_box.pack_start (zoom_out_button, false, false);
3055         _zoom_box.pack_start (zoom_in_button, false, false);
3056         _zoom_box.pack_start (zoom_out_full_button, false, false);
3057
3058         _zoom_box.pack_start (zoom_focus_selector);
3059
3060         /* Track zoom buttons */
3061         tav_expand_button.set_name ("TrackHeightButton");
3062         tav_expand_button.set_size_request(-1,20);
3063         tav_expand_button.add (*(manage (new Image (::get_icon("tav_exp")))));
3064         tav_expand_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::tav_zoom_step), true));
3065
3066         tav_shrink_button.set_name ("TrackHeightButton");
3067         tav_shrink_button.set_size_request(-1,20);
3068         tav_shrink_button.add (*(manage (new Image (::get_icon("tav_shrink")))));
3069         tav_shrink_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::tav_zoom_step), false));
3070
3071         _zoom_box.pack_start (tav_shrink_button);
3072         _zoom_box.pack_start (tav_expand_button);
3073
3074         _zoom_tearoff = manage (new TearOff (_zoom_box));
3075
3076         _zoom_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
3077                                                    &_zoom_tearoff->tearoff_window()));
3078         _zoom_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
3079                                                    &_zoom_tearoff->tearoff_window(), 0));
3080         _zoom_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
3081                                                    &_zoom_tearoff->tearoff_window()));
3082         _zoom_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
3083                                                     &_zoom_tearoff->tearoff_window(), 0));
3084
3085         snap_box.set_spacing (1);
3086         snap_box.set_border_width (2);
3087
3088         snap_type_selector.set_name ("SnapTypeSelector");
3089         set_popdown_strings (snap_type_selector, snap_type_strings, true);
3090         snap_type_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::snap_type_selection_done));
3091
3092         snap_mode_selector.set_name ("SnapModeSelector");
3093         set_popdown_strings (snap_mode_selector, snap_mode_strings, true);
3094         snap_mode_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::snap_mode_selection_done));
3095
3096         edit_point_selector.set_name ("EditPointSelector");
3097         set_popdown_strings (edit_point_selector, edit_point_strings, true);
3098         edit_point_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::edit_point_selection_done));
3099
3100         snap_box.pack_start (snap_mode_selector, false, false);
3101         snap_box.pack_start (snap_type_selector, false, false);
3102         snap_box.pack_start (edit_point_selector, false, false);
3103
3104         /* Nudge */
3105
3106         HBox *nudge_box = manage (new HBox);
3107         nudge_box->set_spacing(1);
3108         nudge_box->set_border_width (2);
3109
3110         nudge_forward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_forward_release), false);
3111         nudge_backward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_backward_release), false);
3112
3113         nudge_box->pack_start (nudge_backward_button, false, false);
3114         nudge_box->pack_start (nudge_forward_button, false, false);
3115         nudge_box->pack_start (nudge_clock, false, false);
3116
3117
3118         /* Pack everything in... */
3119
3120         HBox* hbox = manage (new HBox);
3121         hbox->set_spacing(10);
3122
3123         _tools_tearoff = manage (new TearOff (*hbox));
3124         _tools_tearoff->set_name ("MouseModeBase");
3125         _tools_tearoff->tearoff_window().signal_key_press_event().connect (sigc::bind (sigc::ptr_fun (relay_key_press), &_tools_tearoff->tearoff_window()), false);
3126
3127         if (Profile->get_sae()) {
3128                 _tools_tearoff->set_can_be_torn_off (false);
3129         }
3130
3131         _tools_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
3132                                                     &_tools_tearoff->tearoff_window()));
3133         _tools_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
3134                                                     &_tools_tearoff->tearoff_window(), 0));
3135         _tools_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
3136                                                     &_tools_tearoff->tearoff_window()));
3137         _tools_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
3138                                                      &_tools_tearoff->tearoff_window(), 0));
3139
3140         toolbar_hbox.set_spacing (10);
3141         toolbar_hbox.set_border_width (1);
3142
3143         toolbar_hbox.pack_start (*_mouse_mode_tearoff, false, false);
3144         toolbar_hbox.pack_start (*_zoom_tearoff, false, false);
3145         toolbar_hbox.pack_start (*_tools_tearoff, false, false);
3146
3147         hbox->pack_start (snap_box, false, false);
3148         hbox->pack_start (*nudge_box, false, false);
3149         hbox->pack_start (panic_box, false, false);
3150
3151         hbox->show_all ();
3152
3153         toolbar_base.set_name ("ToolBarBase");
3154         toolbar_base.add (toolbar_hbox);
3155
3156         toolbar_frame.set_shadow_type (SHADOW_OUT);
3157         toolbar_frame.set_name ("BaseFrame");
3158         toolbar_frame.add (toolbar_base);
3159 }
3160
3161 void
3162 Editor::setup_tooltips ()
3163 {
3164         ARDOUR_UI::instance()->set_tip (mouse_move_button, _("Select/Move Objects"));
3165         ARDOUR_UI::instance()->set_tip (mouse_gain_button, _("Draw Gain Automation"));
3166         ARDOUR_UI::instance()->set_tip (mouse_zoom_button, _("Select Zoom Range"));
3167         ARDOUR_UI::instance()->set_tip (mouse_timefx_button, _("Stretch/Shrink Regions and MIDI Notes"));
3168         ARDOUR_UI::instance()->set_tip (mouse_audition_button, _("Listen to Specific Regions"));
3169         ARDOUR_UI::instance()->set_tip (join_object_range_button, _("Select/Move Objects or Ranges"));
3170         ARDOUR_UI::instance()->set_tip (internal_edit_button, _("Edit Region Contents (e.g. notes)"));
3171         ARDOUR_UI::instance()->set_tip (*_group_tabs, _("Groups: context-click for possible operations"));
3172         ARDOUR_UI::instance()->set_tip (nudge_forward_button, _("Nudge Region/Selection Forwards"));
3173         ARDOUR_UI::instance()->set_tip (nudge_backward_button, _("Nudge Region/Selection Backwards"));
3174         ARDOUR_UI::instance()->set_tip (zoom_in_button, _("Zoom In"));
3175         ARDOUR_UI::instance()->set_tip (zoom_out_button, _("Zoom Out"));
3176         ARDOUR_UI::instance()->set_tip (zoom_out_full_button, _("Zoom to Session"));
3177         ARDOUR_UI::instance()->set_tip (zoom_focus_selector, _("Zoom focus"));
3178         ARDOUR_UI::instance()->set_tip (tav_expand_button, _("Expand Tracks"));
3179         ARDOUR_UI::instance()->set_tip (tav_shrink_button, _("Shrink Tracks"));
3180         ARDOUR_UI::instance()->set_tip (snap_type_selector, _("Snap/Grid Units"));
3181         ARDOUR_UI::instance()->set_tip (snap_mode_selector, _("Snap/Grid Mode"));
3182         ARDOUR_UI::instance()->set_tip (edit_point_selector, _("Edit point"));
3183         ARDOUR_UI::instance()->set_tip (midi_sound_notes, _("Sound Notes"));
3184         ARDOUR_UI::instance()->set_tip (midi_panic_button, _("Send note off and reset controller messages on all MIDI channels"));
3185         ARDOUR_UI::instance()->set_tip (edit_mode_selector, _("Edit Mode"));
3186 }
3187
3188 void
3189 Editor::midi_panic ()
3190 {
3191         cerr << "MIDI panic\n";
3192
3193         if (_session) {
3194                 _session->midi_panic();
3195         }
3196 }
3197
3198 void
3199 Editor::setup_midi_toolbar ()
3200 {
3201         RefPtr<Action> act;
3202
3203         /* Midi sound notes */
3204         midi_sound_notes.add (*(manage (new Image (::get_icon("midi_sound_notes")))));
3205         midi_sound_notes.set_relief(Gtk::RELIEF_NONE);
3206         midi_sound_notes.unset_flags (CAN_FOCUS);
3207
3208         /* Panic */
3209
3210         act = ActionManager::get_action (X_("MIDI"), X_("panic"));
3211         midi_panic_button.set_name("MidiPanicButton");
3212         act->connect_proxy (midi_panic_button);
3213
3214         panic_box.pack_start (midi_sound_notes , true, true);
3215         panic_box.pack_start (midi_panic_button, true, true);
3216 }
3217
3218 int
3219 Editor::convert_drop_to_paths (
3220                 vector<ustring>&                paths,
3221                 const RefPtr<Gdk::DragContext>& /*context*/,
3222                 gint                            /*x*/,
3223                 gint                            /*y*/,
3224                 const SelectionData&            data,
3225                 guint                           /*info*/,
3226                 guint                           /*time*/)
3227 {
3228         if (_session == 0) {
3229                 return -1;
3230         }
3231
3232         vector<ustring> uris = data.get_uris();
3233
3234         if (uris.empty()) {
3235
3236                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
3237                    are actually URI lists. So do it by hand.
3238                 */
3239
3240                 if (data.get_target() != "text/plain") {
3241                         return -1;
3242                 }
3243
3244                 /* Parse the "uri-list" format that Nautilus provides,
3245                    where each pathname is delimited by \r\n.
3246
3247                    THERE MAY BE NO NULL TERMINATING CHAR!!!
3248                 */
3249
3250                 ustring txt = data.get_text();
3251                 const char* p;
3252                 const char* q;
3253
3254                 p = (const char *) malloc (txt.length() + 1);
3255                 txt.copy ((char *) p, txt.length(), 0);
3256                 ((char*)p)[txt.length()] = '\0';
3257
3258                 while (p)
3259                 {
3260                         if (*p != '#')
3261                         {
3262                                 while (g_ascii_isspace (*p))
3263                                         p++;
3264
3265                                 q = p;
3266                                 while (*q && (*q != '\n') && (*q != '\r')) {
3267                                         q++;
3268                                 }
3269
3270                                 if (q > p)
3271                                 {
3272                                         q--;
3273                                         while (q > p && g_ascii_isspace (*q))
3274                                                 q--;
3275
3276                                         if (q > p)
3277                                         {
3278                                                 uris.push_back (ustring (p, q - p + 1));
3279                                         }
3280                                 }
3281                         }
3282                         p = strchr (p, '\n');
3283                         if (p)
3284                                 p++;
3285                 }
3286
3287                 free ((void*)p);
3288
3289                 if (uris.empty()) {
3290                         return -1;
3291                 }
3292         }
3293
3294         for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
3295
3296                 if ((*i).substr (0,7) == "file://") {
3297
3298                         ustring p = *i;
3299                         PBD::url_decode (p);
3300
3301                         // scan forward past three slashes
3302
3303                         ustring::size_type slashcnt = 0;
3304                         ustring::size_type n = 0;
3305                         ustring::iterator x = p.begin();
3306
3307                         while (slashcnt < 3 && x != p.end()) {
3308                                 if ((*x) == '/') {
3309                                         slashcnt++;
3310                                 } else if (slashcnt == 3) {
3311                                         break;
3312                                 }
3313                                 ++n;
3314                                 ++x;
3315                         }
3316
3317                         if (slashcnt != 3 || x == p.end()) {
3318                                 error << _("malformed URL passed to drag-n-drop code") << endmsg;
3319                                 continue;
3320                         }
3321
3322                         paths.push_back (p.substr (n - 1));
3323                 }
3324         }
3325
3326         return 0;
3327 }
3328
3329 void
3330 Editor::new_tempo_section ()
3331
3332 {
3333 }
3334
3335 void
3336 Editor::map_transport_state ()
3337 {
3338         ENSURE_GUI_THREAD (*this, &Editor::map_transport_state)
3339
3340         if (_session && _session->transport_stopped()) {
3341                 have_pending_keyboard_selection = false;
3342         }
3343
3344         update_loop_range_view (true);
3345 }
3346
3347 /* UNDO/REDO */
3348
3349 Editor::State::State (PublicEditor const * e)
3350 {
3351         selection = new Selection (e);
3352 }
3353
3354 Editor::State::~State ()
3355 {
3356         delete selection;
3357 }
3358
3359 void
3360 Editor::begin_reversible_command (string name)
3361 {
3362         if (_session) {
3363                 _session->begin_reversible_command (name);
3364         }
3365 }
3366
3367 void
3368 Editor::commit_reversible_command ()
3369 {
3370         if (_session) {
3371                 _session->commit_reversible_command ();
3372         }
3373 }
3374
3375 void
3376 Editor::set_route_group_solo (Route& route, bool yn)
3377 {
3378         RouteGroup *route_group;
3379
3380         if ((route_group = route.route_group()) != 0) {
3381                 route_group->apply (&Route::set_solo, yn, this);
3382         } else {
3383                 route.set_solo (yn, this);
3384         }
3385 }
3386
3387 void
3388 Editor::set_route_group_mute (Route& route, bool yn)
3389 {
3390         RouteGroup *route_group = 0;
3391
3392         if ((route_group = route.route_group()) != 0) {
3393                 route_group->apply (&Route::set_mute, yn, this);
3394         } else {
3395                 route.set_mute (yn, this);
3396         }
3397 }
3398
3399 void
3400 Editor::history_changed ()
3401 {
3402         string label;
3403
3404         if (undo_action && _session) {
3405                 if (_session->undo_depth() == 0) {
3406                         label = _("Undo");
3407                 } else {
3408                         label = string_compose(_("Undo (%1)"), _session->next_undo());
3409                 }
3410                 undo_action->property_label() = label;
3411         }
3412
3413         if (redo_action && _session) {
3414                 if (_session->redo_depth() == 0) {
3415                         label = _("Redo");
3416                 } else {
3417                         label = string_compose(_("Redo (%1)"), _session->next_redo());
3418                 }
3419                 redo_action->property_label() = label;
3420         }
3421 }
3422
3423 void
3424 Editor::duplicate_dialog (bool with_dialog)
3425 {
3426         float times = 1.0f;
3427
3428         if (mouse_mode == MouseRange) {
3429                 if (selection->time.length() == 0) {
3430                         return;
3431                 }
3432         }
3433
3434         RegionSelection rs;
3435         get_regions_for_action (rs);
3436
3437         if (mouse_mode != MouseRange) {
3438
3439                 if (rs.empty()) {
3440                         return;
3441                 }
3442         }
3443
3444         if (with_dialog) {
3445
3446                 ArdourDialog win (_("Duplicate"));
3447                 Label label (_("Number of duplications:"));
3448                 Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
3449                 SpinButton spinner (adjustment, 0.0, 1);
3450                 HBox hbox;
3451
3452                 win.get_vbox()->set_spacing (12);
3453                 win.get_vbox()->pack_start (hbox);
3454                 hbox.set_border_width (6);
3455                 hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
3456
3457                 /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
3458                    place, visually. so do this by hand.
3459                 */
3460
3461                 hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
3462                 spinner.signal_activate().connect (sigc::bind (sigc::mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
3463                 spinner.grab_focus();
3464
3465                 hbox.show ();
3466                 label.show ();
3467                 spinner.show ();
3468
3469                 win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3470                 win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
3471                 win.set_default_response (RESPONSE_ACCEPT);
3472
3473                 win.set_position (WIN_POS_MOUSE);
3474
3475                 spinner.grab_focus ();
3476
3477                 switch (win.run ()) {
3478                 case RESPONSE_ACCEPT:
3479                         break;
3480                 default:
3481                         return;
3482                 }
3483
3484                 times = adjustment.get_value();
3485         }
3486
3487         if (mouse_mode == MouseRange) {
3488                 duplicate_selection (times);
3489         } else {
3490                 duplicate_some_regions (rs, times);
3491         }
3492 }
3493
3494 void
3495 Editor::show_verbose_canvas_cursor ()
3496 {
3497         verbose_canvas_cursor->raise_to_top();
3498         verbose_canvas_cursor->show();
3499         verbose_cursor_visible = true;
3500 }
3501
3502 void
3503 Editor::hide_verbose_canvas_cursor ()
3504 {
3505         verbose_canvas_cursor->hide();
3506         verbose_cursor_visible = false;
3507 }
3508
3509 double
3510 Editor::clamp_verbose_cursor_x (double x)
3511 {
3512         if (x < 0) {
3513                 x = 0;
3514         } else {
3515                 x = min (_canvas_width - 200.0, x);
3516         }
3517         return x;
3518 }
3519
3520 double
3521 Editor::clamp_verbose_cursor_y (double y)
3522 {
3523         if (y < canvas_timebars_vsize) {
3524                 y = canvas_timebars_vsize;
3525         } else {
3526                 y = min (_canvas_height - 50, y);
3527         }
3528         return y;
3529 }
3530
3531 void
3532 Editor::show_verbose_canvas_cursor_with (const string & txt)
3533 {
3534         verbose_canvas_cursor->property_text() = txt.c_str();
3535
3536         int x, y;
3537         double wx, wy;
3538
3539         track_canvas->get_pointer (x, y);
3540         track_canvas->window_to_world (x, y, wx, wy);
3541
3542         /* don't get too close to the edge */
3543         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (wx);
3544         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (wy);
3545
3546         show_verbose_canvas_cursor ();
3547 }
3548
3549 void
3550 Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
3551 {
3552         verbose_canvas_cursor->property_text() = txt.c_str();
3553         /* don't get too close to the edge */
3554         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (x);
3555         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (y);
3556 }
3557
3558 void
3559 Editor::set_verbose_canvas_cursor_text (const string & txt)
3560 {
3561         verbose_canvas_cursor->property_text() = txt.c_str();
3562 }
3563
3564 void
3565 Editor::set_edit_mode (EditMode m)
3566 {
3567         Config->set_edit_mode (m);
3568 }
3569
3570 void
3571 Editor::cycle_edit_mode ()
3572 {
3573         switch (Config->get_edit_mode()) {
3574         case Slide:
3575                 if (Profile->get_sae()) {
3576                         Config->set_edit_mode (Lock);
3577                 } else {
3578                         Config->set_edit_mode (Splice);
3579                 }
3580                 break;
3581         case Splice:
3582                 Config->set_edit_mode (Lock);
3583                 break;
3584         case Lock:
3585                 Config->set_edit_mode (Slide);
3586                 break;
3587         }
3588 }
3589
3590 void
3591 Editor::edit_mode_selection_done ()
3592 {
3593         Config->set_edit_mode (string_to_edit_mode (edit_mode_selector.get_active_text ()));
3594 }
3595
3596 void
3597 Editor::snap_type_selection_done ()
3598 {
3599         string choice = snap_type_selector.get_active_text();
3600         SnapType snaptype = SnapToBeat;
3601
3602         if (choice == _("Beats/2")) {
3603                 snaptype = SnapToBeatDiv2;
3604         } else if (choice == _("Beats/3")) {
3605                 snaptype = SnapToBeatDiv3;
3606         } else if (choice == _("Beats/4")) {
3607                 snaptype = SnapToBeatDiv4;
3608         } else if (choice == _("Beats/5")) {
3609                 snaptype = SnapToBeatDiv5;
3610         } else if (choice == _("Beats/6")) {
3611                 snaptype = SnapToBeatDiv6;
3612         } else if (choice == _("Beats/7")) {
3613                 snaptype = SnapToBeatDiv7;
3614         } else if (choice == _("Beats/8")) {
3615                 snaptype = SnapToBeatDiv8;
3616         } else if (choice == _("Beats/10")) {
3617                 snaptype = SnapToBeatDiv10;
3618         } else if (choice == _("Beats/12")) {
3619                 snaptype = SnapToBeatDiv12;
3620         } else if (choice == _("Beats/14")) {
3621                 snaptype = SnapToBeatDiv14;
3622         } else if (choice == _("Beats/16")) {
3623                 snaptype = SnapToBeatDiv16;
3624         } else if (choice == _("Beats/20")) {
3625                 snaptype = SnapToBeatDiv20;
3626         } else if (choice == _("Beats/24")) {
3627                 snaptype = SnapToBeatDiv24;
3628         } else if (choice == _("Beats/28")) {
3629                 snaptype = SnapToBeatDiv28;
3630         } else if (choice == _("Beats/32")) {
3631                 snaptype = SnapToBeatDiv32;
3632         } else if (choice == _("Beats")) {
3633                 snaptype = SnapToBeat;
3634         } else if (choice == _("Bars")) {
3635                 snaptype = SnapToBar;
3636         } else if (choice == _("Marks")) {
3637                 snaptype = SnapToMark;
3638         } else if (choice == _("Region starts")) {
3639                 snaptype = SnapToRegionStart;
3640         } else if (choice == _("Region ends")) {
3641                 snaptype = SnapToRegionEnd;
3642         } else if (choice == _("Region bounds")) {
3643                 snaptype = SnapToRegionBoundary;
3644         } else if (choice == _("Region syncs")) {
3645                 snaptype = SnapToRegionSync;
3646         } else if (choice == _("CD Frames")) {
3647                 snaptype = SnapToCDFrame;
3648         } else if (choice == _("Timecode Frames")) {
3649                 snaptype = SnapToTimecodeFrame;
3650         } else if (choice == _("Timecode Seconds")) {
3651                 snaptype = SnapToTimecodeSeconds;
3652         } else if (choice == _("Timecode Minutes")) {
3653                 snaptype = SnapToTimecodeMinutes;
3654         } else if (choice == _("Seconds")) {
3655                 snaptype = SnapToSeconds;
3656         } else if (choice == _("Minutes")) {
3657                 snaptype = SnapToMinutes;
3658         }
3659
3660         RefPtr<RadioAction> ract = snap_type_action (snaptype);
3661         if (ract) {
3662                 ract->set_active ();
3663         }
3664 }
3665
3666 void
3667 Editor::snap_mode_selection_done ()
3668 {
3669         string choice = snap_mode_selector.get_active_text();
3670         SnapMode mode = SnapNormal;
3671
3672         if (choice == _("No Grid")) {
3673                 mode = SnapOff;
3674         } else if (choice == _("Grid")) {
3675                 mode = SnapNormal;
3676         } else if (choice == _("Magnetic")) {
3677                 mode = SnapMagnetic;
3678         }
3679
3680         RefPtr<RadioAction> ract = snap_mode_action (mode);
3681
3682         if (ract) {
3683                 ract->set_active (true);
3684         }
3685 }
3686
3687 void
3688 Editor::cycle_edit_point (bool with_marker)
3689 {
3690         switch (_edit_point) {
3691         case EditAtMouse:
3692                 set_edit_point_preference (EditAtPlayhead);
3693                 break;
3694         case EditAtPlayhead:
3695                 if (with_marker) {
3696                         set_edit_point_preference (EditAtSelectedMarker);
3697                 } else {
3698                         set_edit_point_preference (EditAtMouse);
3699                 }
3700                 break;
3701         case EditAtSelectedMarker:
3702                 set_edit_point_preference (EditAtMouse);
3703                 break;
3704         }
3705 }
3706
3707 void
3708 Editor::edit_point_selection_done ()
3709 {
3710         string choice = edit_point_selector.get_active_text();
3711         EditPoint ep = EditAtSelectedMarker;
3712
3713         if (choice == _("Marker")) {
3714                 set_edit_point_preference (EditAtSelectedMarker);
3715         } else if (choice == _("Playhead")) {
3716                 set_edit_point_preference (EditAtPlayhead);
3717         } else {
3718                 set_edit_point_preference (EditAtMouse);
3719         }
3720
3721         RefPtr<RadioAction> ract = edit_point_action (ep);
3722
3723         if (ract) {
3724                 ract->set_active (true);
3725         }
3726 }
3727
3728 void
3729 Editor::zoom_focus_selection_done ()
3730 {
3731         string choice = zoom_focus_selector.get_active_text();
3732         ZoomFocus focus_type = ZoomFocusLeft;
3733
3734         if (choice == _("Left")) {
3735                 focus_type = ZoomFocusLeft;
3736         } else if (choice == _("Right")) {
3737                 focus_type = ZoomFocusRight;
3738         } else if (choice == _("Center")) {
3739                 focus_type = ZoomFocusCenter;
3740         } else if (choice == _("Playhead")) {
3741                 focus_type = ZoomFocusPlayhead;
3742         } else if (choice == _("Mouse")) {
3743                 focus_type = ZoomFocusMouse;
3744         } else if (choice == _("Edit point")) {
3745                 focus_type = ZoomFocusEdit;
3746         }
3747
3748         RefPtr<RadioAction> ract = zoom_focus_action (focus_type);
3749
3750         if (ract) {
3751                 ract->set_active ();
3752         }
3753 }
3754
3755 gint
3756 Editor::edit_controls_button_release (GdkEventButton* ev)
3757 {
3758         if (Keyboard::is_context_menu_event (ev)) {
3759                 ARDOUR_UI::instance()->add_route (this);
3760         }
3761         return TRUE;
3762 }
3763
3764 gint
3765 Editor::mouse_select_button_release (GdkEventButton* ev)
3766 {
3767         /* this handles just right-clicks */
3768
3769         if (ev->button != 3) {
3770                 return false;
3771         }
3772
3773         return true;
3774 }
3775
3776 void
3777 Editor::set_zoom_focus (ZoomFocus f)
3778 {
3779         string str = zoom_focus_strings[(int)f];
3780
3781         if (str != zoom_focus_selector.get_active_text()) {
3782                 zoom_focus_selector.set_active_text (str);
3783         }
3784
3785         if (zoom_focus != f) {
3786                 zoom_focus = f;
3787
3788                 ZoomFocusChanged (); /* EMIT_SIGNAL */
3789
3790                 instant_save ();
3791         }
3792 }
3793
3794 void
3795 Editor::ensure_float (Window& win)
3796 {
3797         win.set_transient_for (*this);
3798 }
3799
3800 void
3801 Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
3802 {
3803         /* recover or initialize pane positions. do this here rather than earlier because
3804            we don't want the positions to change the child allocations, which they seem to do.
3805          */
3806
3807         int pos;
3808         XMLProperty* prop;
3809         char buf[32];
3810         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
3811         int width, height;
3812
3813         enum Pane {
3814                 Horizontal = 0x1,
3815                 Vertical = 0x2
3816         };
3817
3818         static Pane done;
3819
3820         XMLNode* geometry;
3821
3822         width = default_width;
3823         height = default_height;
3824
3825         if ((geometry = find_named_node (*node, "geometry")) != 0) {
3826
3827                 prop = geometry->property ("x-size");
3828                 if (prop) {
3829                         width = atoi (prop->value());
3830                 }
3831                 prop = geometry->property ("y-size");
3832                 if (prop) {
3833                         height = atoi (prop->value());
3834                 }
3835         }
3836
3837         if (which == static_cast<Paned*> (&edit_pane)) {
3838
3839                 if (done & Horizontal) {
3840                         return;
3841                 }
3842
3843                 if (!geometry || (prop = geometry->property ("edit-horizontal-pane-pos")) == 0) {
3844                         /* initial allocation is 90% to canvas, 10% to notebook */
3845                         pos = (int) floor (alloc.get_width() * 0.90f);
3846                         snprintf (buf, sizeof(buf), "%d", pos);
3847                 } else {
3848                         pos = atoi (prop->value());
3849                 }
3850
3851                 if (GTK_WIDGET(edit_pane.gobj())->allocation.width > pos) {
3852                         edit_pane.set_position (pos);
3853                         pre_maximal_horizontal_pane_position = pos;
3854                 }
3855
3856                 done = (Pane) (done | Horizontal);
3857
3858         } else if (which == static_cast<Paned*> (&editor_summary_pane)) {
3859
3860                 if (done & Vertical) {
3861                         return;
3862                 }
3863
3864                 if (!geometry || (prop = geometry->property ("edit-vertical-pane-pos")) == 0) {
3865                         /* initial allocation is 90% to canvas, 10% to summary */
3866                         pos = (int) floor (alloc.get_height() * 0.90f);
3867                         snprintf (buf, sizeof(buf), "%d", pos);
3868                 } else {
3869                         pos = atoi (prop->value());
3870                 }
3871
3872                 if (GTK_WIDGET(editor_summary_pane.gobj())->allocation.height > pos) {
3873                         editor_summary_pane.set_position (pos);
3874                         pre_maximal_vertical_pane_position = pos;
3875                 }
3876
3877                 done = (Pane) (done | Vertical);
3878         }
3879 }
3880
3881 void
3882 Editor::detach_tearoff (Box* /*b*/, Window* /*w*/)
3883 {
3884         if (_tools_tearoff->torn_off() && _mouse_mode_tearoff->torn_off()) {
3885                 top_hbox.remove (toolbar_frame);
3886         }
3887 }
3888
3889 void
3890 Editor::reattach_tearoff (Box* /*b*/, Window* /*w*/, int32_t /*n*/)
3891 {
3892         if (toolbar_frame.get_parent() == 0) {
3893                 top_hbox.pack_end (toolbar_frame);
3894         }
3895 }
3896
3897 void
3898 Editor::set_show_measures (bool yn)
3899 {
3900         if (_show_measures != yn) {
3901                 hide_measures ();
3902
3903                 if ((_show_measures = yn) == true) {
3904                         if (tempo_lines)
3905                                 tempo_lines->show();
3906                         draw_measures ();
3907                 }
3908                 instant_save ();
3909         }
3910 }
3911
3912 void
3913 Editor::toggle_follow_playhead ()
3914 {
3915         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3916         if (act) {
3917                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3918                 set_follow_playhead (tact->get_active());
3919         }
3920 }
3921
3922 void
3923 Editor::set_follow_playhead (bool yn)
3924 {
3925         if (_follow_playhead != yn) {
3926                 if ((_follow_playhead = yn) == true) {
3927                         /* catch up */
3928                         reset_x_origin_to_follow_playhead ();
3929                 }
3930                 instant_save ();
3931         }
3932 }
3933
3934 void
3935 Editor::toggle_stationary_playhead ()
3936 {
3937        RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-stationary-playhead"));
3938        if (act) {
3939                RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3940                set_stationary_playhead (tact->get_active());
3941        }
3942 }
3943
3944 void
3945 Editor::set_stationary_playhead (bool yn)
3946 {
3947        if (_stationary_playhead != yn) {
3948                if ((_stationary_playhead = yn) == true) {
3949                        /* catch up */
3950                        // FIXME need a 3.0 equivalent of this 2.X call
3951                        // update_current_screen ();
3952                }
3953                instant_save ();
3954        }
3955 }
3956
3957 void
3958 Editor::toggle_xfade_active (boost::weak_ptr<Crossfade> wxfade)
3959 {
3960         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3961         if (xfade) {
3962                 xfade->set_active (!xfade->active());
3963         }
3964 }
3965
3966 void
3967 Editor::toggle_xfade_length (boost::weak_ptr<Crossfade> wxfade)
3968 {
3969         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3970         if (xfade) {
3971                 xfade->set_follow_overlap (!xfade->following_overlap());
3972         }
3973 }
3974
3975 void
3976 Editor::edit_xfade (boost::weak_ptr<Crossfade> wxfade)
3977 {
3978         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3979
3980         if (!xfade) {
3981                 return;
3982         }
3983
3984         CrossfadeEditor cew (_session, xfade, xfade->fade_in().get_min_y(), 1.0);
3985
3986         ensure_float (cew);
3987
3988         switch (cew.run ()) {
3989         case RESPONSE_ACCEPT:
3990                 break;
3991         default:
3992                 return;
3993         }
3994
3995         cew.apply ();
3996         PropertyChange all_crossfade_properties;
3997         all_crossfade_properties.add (ARDOUR::Properties::active);
3998         all_crossfade_properties.add (ARDOUR::Properties::follow_overlap);
3999         xfade->PropertyChanged (all_crossfade_properties);
4000 }
4001
4002 PlaylistSelector&
4003 Editor::playlist_selector () const
4004 {
4005         return *_playlist_selector;
4006 }
4007
4008 Evoral::MusicalTime
4009 Editor::get_grid_type_as_beats (bool& success, nframes64_t position)
4010 {
4011         success = true;
4012
4013         switch (_snap_type) {
4014         case SnapToBeat:
4015                 return 1.0;
4016                 break;
4017
4018         case SnapToBeatDiv32:
4019                 return 1.0/32.0;
4020                 break;
4021         case SnapToBeatDiv28:
4022                 return 1.0/28.0;
4023                 break;
4024         case SnapToBeatDiv24:
4025                 return 1.0/24.0;
4026                 break;
4027         case SnapToBeatDiv20:
4028                 return 1.0/20.0;
4029                 break;
4030         case SnapToBeatDiv16:
4031                 return 1.0/16.0;
4032                 break;
4033         case SnapToBeatDiv14:
4034                 return 1.0/14.0;
4035                 break;
4036         case SnapToBeatDiv12:
4037                 return 1.0/12.0;
4038                 break;
4039         case SnapToBeatDiv10:
4040                 return 1.0/10.0;
4041                 break;
4042         case SnapToBeatDiv8:
4043                 return 1.0/8.0;
4044                 break;
4045         case SnapToBeatDiv7:
4046                 return 1.0/7.0;
4047                 break;
4048         case SnapToBeatDiv6:
4049                 return 1.0/6.0;
4050                 break;
4051         case SnapToBeatDiv5:
4052                 return 1.0/5.0;
4053                 break;
4054         case SnapToBeatDiv4:
4055                 return 1.0/4.0;
4056                 break;
4057         case SnapToBeatDiv3:
4058                 return 1.0/3.0;
4059                 break;
4060         case SnapToBeatDiv2:
4061                 return 1.0/2.0;
4062                 break;
4063
4064         case SnapToBar:
4065                 if (_session) {
4066                         return _session->tempo_map().meter_at (position).beats_per_bar();
4067                 }
4068                 break;
4069
4070         case SnapToCDFrame:
4071         case SnapToTimecodeFrame:
4072         case SnapToTimecodeSeconds:
4073         case SnapToTimecodeMinutes:
4074         case SnapToSeconds:
4075         case SnapToMinutes:
4076         case SnapToRegionStart:
4077         case SnapToRegionEnd:
4078         case SnapToRegionSync:
4079         case SnapToRegionBoundary:
4080         default:
4081                 success = false;
4082                 break;
4083         }
4084
4085         return 0.0;
4086 }
4087
4088 nframes64_t
4089 Editor::get_nudge_distance (nframes64_t pos, nframes64_t& next)
4090 {
4091         nframes64_t ret;
4092
4093         ret = nudge_clock.current_duration (pos);
4094         next = ret + 1; /* XXXX fix me */
4095
4096         return ret;
4097 }
4098
4099 int
4100 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
4101 {
4102         ArdourDialog dialog (_("Playlist Deletion"));
4103         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
4104                                         "If left alone, no audio files used by it will be cleaned.\n"
4105                                         "If deleted, audio files used by it alone by will cleaned."),
4106                                       pl->name()));
4107
4108         dialog.set_position (WIN_POS_CENTER);
4109         dialog.get_vbox()->pack_start (label);
4110
4111         label.show ();
4112
4113         dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
4114         dialog.add_button (_("Keep playlist"), RESPONSE_REJECT);
4115         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
4116
4117         switch (dialog.run ()) {
4118         case RESPONSE_ACCEPT:
4119                 /* delete the playlist */
4120                 return 0;
4121                 break;
4122
4123         case RESPONSE_REJECT:
4124                 /* keep the playlist */
4125                 return 1;
4126                 break;
4127
4128         default:
4129                 break;
4130         }
4131
4132         return -1;
4133 }
4134
4135 bool
4136 Editor::audio_region_selection_covers (nframes64_t where)
4137 {
4138         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
4139                 if ((*a)->region()->covers (where)) {
4140                         return true;
4141                 }
4142         }
4143
4144         return false;
4145 }
4146
4147 void
4148 Editor::prepare_for_cleanup ()
4149 {
4150         cut_buffer->clear_regions ();
4151         cut_buffer->clear_playlists ();
4152
4153         selection->clear_regions ();
4154         selection->clear_playlists ();
4155
4156         _regions->suspend_redisplay ();
4157 }
4158
4159 void
4160 Editor::finish_cleanup ()
4161 {
4162         _regions->resume_redisplay ();
4163 }
4164
4165 Location*
4166 Editor::transport_loop_location()
4167 {
4168         if (_session) {
4169                 return _session->locations()->auto_loop_location();
4170         } else {
4171                 return 0;
4172         }
4173 }
4174
4175 Location*
4176 Editor::transport_punch_location()
4177 {
4178         if (_session) {
4179                 return _session->locations()->auto_punch_location();
4180         } else {
4181                 return 0;
4182         }
4183 }
4184
4185 bool
4186 Editor::control_layout_scroll (GdkEventScroll* ev)
4187 {
4188         if (Keyboard::some_magic_widget_has_focus()) {
4189                 return false;
4190         }
4191
4192         switch (ev->direction) {
4193         case GDK_SCROLL_UP:
4194                 scroll_tracks_up_line ();
4195                 return true;
4196                 break;
4197
4198         case GDK_SCROLL_DOWN:
4199                 scroll_tracks_down_line ();
4200                 return true;
4201
4202         default:
4203                 /* no left/right handling yet */
4204                 break;
4205         }
4206
4207         return false;
4208 }
4209
4210 void
4211 Editor::session_state_saved (string snap_name)
4212 {
4213         ENSURE_GUI_THREAD (*this, &Editor::session_state_saved, snap_name);
4214
4215         update_title ();
4216         _snapshots->redisplay ();
4217 }
4218
4219 void
4220 Editor::maximise_editing_space ()
4221 {
4222         _mouse_mode_tearoff->set_visible (false);
4223         _tools_tearoff->set_visible (false);
4224         _zoom_tearoff->set_visible (false);
4225
4226         pre_maximal_horizontal_pane_position = edit_pane.get_position ();
4227         pre_maximal_vertical_pane_position = editor_summary_pane.get_position ();
4228         pre_maximal_editor_width = this->get_width ();
4229         pre_maximal_editor_height = this->get_height ();
4230
4231         if (post_maximal_horizontal_pane_position == 0) {
4232                 post_maximal_horizontal_pane_position = edit_pane.get_width();
4233         }
4234
4235         if (post_maximal_vertical_pane_position == 0) {
4236                 post_maximal_vertical_pane_position = editor_summary_pane.get_height();
4237         }
4238
4239         fullscreen ();
4240
4241         if (post_maximal_editor_width) {
4242                 edit_pane.set_position (post_maximal_horizontal_pane_position -
4243                         abs(post_maximal_editor_width - pre_maximal_editor_width));
4244         } else {
4245                 edit_pane.set_position (post_maximal_horizontal_pane_position);
4246         }
4247
4248         if (post_maximal_editor_height) {
4249                 editor_summary_pane.set_position (post_maximal_vertical_pane_position -
4250                         abs(post_maximal_editor_height - pre_maximal_editor_height));
4251         } else {
4252                 editor_summary_pane.set_position (post_maximal_vertical_pane_position);
4253         }
4254
4255         if (Config->get_keep_tearoffs()) {
4256                 _mouse_mode_tearoff->set_visible (true);
4257                 _tools_tearoff->set_visible (true);
4258                 _zoom_tearoff->set_visible (true);
4259         }
4260 }
4261
4262 void
4263 Editor::restore_editing_space ()
4264 {
4265         // user changed width/height of panes during fullscreen
4266
4267         if (post_maximal_horizontal_pane_position != edit_pane.get_position()) {
4268                 post_maximal_horizontal_pane_position = edit_pane.get_position();
4269         }
4270
4271         if (post_maximal_vertical_pane_position != editor_summary_pane.get_position()) {
4272                 post_maximal_vertical_pane_position = editor_summary_pane.get_position();
4273         }
4274
4275         unfullscreen();
4276
4277         _mouse_mode_tearoff->set_visible (true);
4278         _tools_tearoff->set_visible (true);
4279         _zoom_tearoff->set_visible (true);
4280         post_maximal_editor_width = this->get_width();
4281         post_maximal_editor_height = this->get_height();
4282
4283         edit_pane.set_position (pre_maximal_horizontal_pane_position + abs(this->get_width() - pre_maximal_editor_width));
4284         editor_summary_pane.set_position (pre_maximal_vertical_pane_position + abs(this->get_height() - pre_maximal_editor_height));
4285 }
4286
4287 /**
4288  *  Make new playlists for a given track and also any others that belong
4289  *  to the same active route group with the `edit' property.
4290  *  @param v Track.
4291  */
4292
4293 void
4294 Editor::new_playlists (TimeAxisView* v)
4295 {
4296         begin_reversible_command (_("new playlists"));
4297         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4298         _session->playlists->get (playlists);
4299         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, ARDOUR::Properties::edit.property_id);
4300         commit_reversible_command ();
4301 }
4302
4303 /**
4304  *  Use a copy of the current playlist for a given track and also any others that belong
4305  *  to the same active route group with the `edit' property.
4306  *  @param v Track.
4307  */
4308
4309 void
4310 Editor::copy_playlists (TimeAxisView* v)
4311 {
4312         begin_reversible_command (_("copy playlists"));
4313         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4314         _session->playlists->get (playlists);
4315         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, ARDOUR::Properties::edit.property_id);
4316         commit_reversible_command ();
4317 }
4318
4319 /** Clear the current playlist for a given track and also any others that belong
4320  *  to the same active route group with the `edit' property.
4321  *  @param v Track.
4322  */
4323
4324 void
4325 Editor::clear_playlists (TimeAxisView* v)
4326 {
4327         begin_reversible_command (_("clear playlists"));
4328         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4329         _session->playlists->get (playlists);
4330         mapover_tracks (sigc::mem_fun (*this, &Editor::mapped_clear_playlist), v, ARDOUR::Properties::edit.property_id);
4331         commit_reversible_command ();
4332 }
4333
4334 void
4335 Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4336 {
4337         atv.use_new_playlist (sz > 1 ? false : true, playlists);
4338 }
4339
4340 void
4341 Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4342 {
4343         atv.use_copy_playlist (sz > 1 ? false : true, playlists);
4344 }
4345
4346 void
4347 Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t /*sz*/)
4348 {
4349         atv.clear_playlist ();
4350 }
4351
4352 bool
4353 Editor::on_key_press_event (GdkEventKey* ev)
4354 {
4355         return key_press_focus_accelerator_handler (*this, ev);
4356 }
4357
4358 bool
4359 Editor::on_key_release_event (GdkEventKey* ev)
4360 {
4361         return Gtk::Window::on_key_release_event (ev);
4362         // return key_press_focus_accelerator_handler (*this, ev);
4363 }
4364
4365 /** Queue up a change to the viewport x origin.
4366  *  @param frame New x origin.
4367  */
4368 void
4369 Editor::reset_x_origin (nframes64_t frame)
4370 {
4371         queue_visual_change (frame);
4372 }
4373
4374 void
4375 Editor::reset_y_origin (double y)
4376 {
4377         queue_visual_change_y (y);
4378 }
4379
4380 void
4381 Editor::reset_zoom (double fpu)
4382 {
4383         queue_visual_change (fpu);
4384 }
4385
4386 void
4387 Editor::reposition_and_zoom (nframes64_t frame, double fpu)
4388 {
4389         reset_x_origin (frame);
4390         reset_zoom (fpu);
4391
4392         if (!no_save_visual) {
4393                 undo_visual_stack.push_back (current_visual_state(false));
4394         }
4395 }
4396
4397 Editor::VisualState*
4398 Editor::current_visual_state (bool with_tracks)
4399 {
4400         VisualState* vs = new VisualState;
4401         vs->y_position = vertical_adjustment.get_value();
4402         vs->frames_per_unit = frames_per_unit;
4403         vs->leftmost_frame = leftmost_frame;
4404         vs->zoom_focus = zoom_focus;
4405
4406         if (with_tracks) {
4407                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4408                         vs->track_states.push_back (TAVState ((*i), &(*i)->get_state()));
4409                 }
4410         }
4411
4412         return vs;
4413 }
4414
4415 void
4416 Editor::undo_visual_state ()
4417 {
4418         if (undo_visual_stack.empty()) {
4419                 return;
4420         }
4421
4422         redo_visual_stack.push_back (current_visual_state());
4423
4424         VisualState* vs = undo_visual_stack.back();
4425         undo_visual_stack.pop_back();
4426         use_visual_state (*vs);
4427 }
4428
4429 void
4430 Editor::redo_visual_state ()
4431 {
4432         if (redo_visual_stack.empty()) {
4433                 return;
4434         }
4435
4436         undo_visual_stack.push_back (current_visual_state());
4437
4438         VisualState* vs = redo_visual_stack.back();
4439         redo_visual_stack.pop_back();
4440         use_visual_state (*vs);
4441 }
4442
4443 void
4444 Editor::swap_visual_state ()
4445 {
4446         if (undo_visual_stack.empty()) {
4447                 redo_visual_state ();
4448         } else {
4449                 undo_visual_state ();
4450         }
4451 }
4452
4453 void
4454 Editor::use_visual_state (VisualState& vs)
4455 {
4456         no_save_visual = true;
4457
4458         _routes->suspend_redisplay ();
4459
4460         vertical_adjustment.set_value (vs.y_position);
4461
4462         set_zoom_focus (vs.zoom_focus);
4463         reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
4464
4465         for (list<TAVState>::iterator i = vs.track_states.begin(); i != vs.track_states.end(); ++i) {
4466                 TrackViewList::iterator t;
4467
4468                 /* check if the track still exists - it could have been deleted */
4469
4470                 if ((t = find (track_views.begin(), track_views.end(), i->first)) != track_views.end()) {
4471                         (*t)->set_state (*(i->second), Stateful::loading_state_version);
4472                 }
4473         }
4474
4475
4476         if (!vs.track_states.empty()) {
4477                 _routes->update_visibility ();
4478         }
4479
4480         _routes->resume_redisplay ();
4481
4482         no_save_visual = false;
4483 }
4484
4485 void
4486 Editor::set_frames_per_unit (double fpu)
4487 {
4488         /* this is the core function that controls the zoom level of the canvas. it is called
4489            whenever one or more calls are made to reset_zoom(). it executes in an idle handler.
4490         */
4491
4492         if (fpu == frames_per_unit) {
4493                 return;
4494         }
4495
4496         if (fpu < 2.0) {
4497                 fpu = 2.0;
4498         }
4499
4500
4501         /* don't allow zooms that fit more than the maximum number
4502            of frames into an 800 pixel wide space.
4503         */
4504
4505         if (max_frames / fpu < 800.0) {
4506                 return;
4507         }
4508
4509         if (tempo_lines)
4510                 tempo_lines->tempo_map_changed();
4511
4512         frames_per_unit = fpu;
4513         post_zoom ();
4514 }
4515
4516 void
4517 Editor::post_zoom ()
4518 {
4519         // convert fpu to frame count
4520
4521         nframes64_t frames = (nframes64_t) floor (frames_per_unit * _canvas_width);
4522
4523         if (frames_per_unit != zoom_range_clock.current_duration()) {
4524                 zoom_range_clock.set (frames);
4525         }
4526
4527         if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
4528                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4529                         (*i)->reshow_selection (selection->time);
4530                 }
4531         }
4532
4533         ZoomChanged (); /* EMIT_SIGNAL */
4534
4535         //reset_scrolling_region ();
4536
4537         if (playhead_cursor) {
4538                 playhead_cursor->set_position (playhead_cursor->current_frame);
4539         }
4540
4541         refresh_location_display();
4542         _summary->set_overlays_dirty ();
4543
4544         instant_save ();
4545 }
4546
4547 void
4548 Editor::queue_visual_change (nframes64_t where)
4549 {
4550         pending_visual_change.add (VisualChange::TimeOrigin);
4551         pending_visual_change.time_origin = where;
4552         ensure_visual_change_idle_handler ();
4553 }
4554
4555 void
4556 Editor::queue_visual_change (double fpu)
4557 {
4558         pending_visual_change.add (VisualChange::ZoomLevel);
4559         pending_visual_change.frames_per_unit = fpu;
4560
4561         ensure_visual_change_idle_handler ();
4562 }
4563
4564 void
4565 Editor::queue_visual_change_y (double y)
4566 {
4567         pending_visual_change.add (VisualChange::YOrigin);
4568         pending_visual_change.y_origin = y;
4569
4570         ensure_visual_change_idle_handler ();
4571 }
4572
4573 void
4574 Editor::ensure_visual_change_idle_handler ()
4575 {
4576         if (pending_visual_change.idle_handler_id < 0) {
4577                 pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
4578         }
4579 }
4580
4581 int
4582 Editor::_idle_visual_changer (void* arg)
4583 {
4584         return static_cast<Editor*>(arg)->idle_visual_changer ();
4585 }
4586
4587 int
4588 Editor::idle_visual_changer ()
4589 {
4590         VisualChange::Type p = pending_visual_change.pending;
4591         pending_visual_change.pending = (VisualChange::Type) 0;
4592
4593         double last_time_origin = horizontal_position ();
4594
4595         if (p & VisualChange::ZoomLevel) {
4596                 set_frames_per_unit (pending_visual_change.frames_per_unit);
4597
4598                 compute_fixed_ruler_scale ();
4599                 compute_current_bbt_points(pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4600                 compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4601                 update_tempo_based_rulers ();
4602         }
4603         if (p & VisualChange::TimeOrigin) {
4604                 set_horizontal_position (pending_visual_change.time_origin / frames_per_unit);
4605         }
4606         if (p & VisualChange::YOrigin) {
4607                 vertical_adjustment.set_value (pending_visual_change.y_origin);
4608         }
4609
4610         if (last_time_origin == horizontal_position ()) {
4611                 /* changed signal not emitted */
4612                 update_fixed_rulers ();
4613                 redisplay_tempo (true);
4614         }
4615
4616         _summary->set_overlays_dirty ();
4617
4618         pending_visual_change.idle_handler_id = -1;
4619         return 0; /* this is always a one-shot call */
4620 }
4621
4622 struct EditorOrderTimeAxisSorter {
4623     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
4624             return a->order () < b->order ();
4625     }
4626 };
4627
4628 void
4629 Editor::sort_track_selection (TrackViewList* sel)
4630 {
4631         EditorOrderTimeAxisSorter cmp;
4632
4633         if (sel) {
4634                 sel->sort (cmp);
4635         } else {
4636                 selection->tracks.sort (cmp);
4637         }
4638 }
4639
4640 nframes64_t
4641 Editor::get_preferred_edit_position (bool ignore_playhead)
4642 {
4643         bool ignored;
4644         nframes64_t where = 0;
4645         EditPoint ep = _edit_point;
4646
4647         if (entered_marker) {
4648                 return entered_marker->position();
4649         }
4650
4651         if (ignore_playhead && ep == EditAtPlayhead) {
4652                 ep = EditAtSelectedMarker;
4653         }
4654
4655         switch (ep) {
4656         case EditAtPlayhead:
4657                 where = _session->audible_frame();
4658                 break;
4659
4660         case EditAtSelectedMarker:
4661                 if (!selection->markers.empty()) {
4662                         bool is_start;
4663                         Location* loc = find_location_from_marker (selection->markers.front(), is_start);
4664                         if (loc) {
4665                                 if (is_start) {
4666                                         where =  loc->start();
4667                                 } else {
4668                                         where = loc->end();
4669                                 }
4670                                 break;
4671                         }
4672                 }
4673                 /* fallthru */
4674
4675         default:
4676         case EditAtMouse:
4677                 if (!mouse_frame (where, ignored)) {
4678                         /* XXX not right but what can we do ? */
4679                         return 0;
4680                 }
4681                 snap_to (where);
4682                 break;
4683         }
4684
4685         return where;
4686 }
4687
4688 void
4689 Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
4690 {
4691         if (!_session) return;
4692
4693         begin_reversible_command (cmd);
4694
4695         Location* tll;
4696
4697         if ((tll = transport_loop_location()) == 0) {
4698                 Location* loc = new Location (*_session, start, end, _("Loop"),  Location::IsAutoLoop);
4699                 XMLNode &before = _session->locations()->get_state();
4700                 _session->locations()->add (loc, true);
4701                 _session->set_auto_loop_location (loc);
4702                 XMLNode &after = _session->locations()->get_state();
4703                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4704         } else {
4705                 XMLNode &before = tll->get_state();
4706                 tll->set_hidden (false, this);
4707                 tll->set (start, end);
4708                 XMLNode &after = tll->get_state();
4709                 _session->add_command (new MementoCommand<Location>(*tll, &before, &after));
4710         }
4711
4712         commit_reversible_command ();
4713 }
4714
4715 void
4716 Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
4717 {
4718         if (!_session) return;
4719
4720         begin_reversible_command (cmd);
4721
4722         Location* tpl;
4723
4724         if ((tpl = transport_punch_location()) == 0) {
4725                 Location* loc = new Location (*_session, start, end, _("Loop"),  Location::IsAutoPunch);
4726                 XMLNode &before = _session->locations()->get_state();
4727                 _session->locations()->add (loc, true);
4728                 _session->set_auto_loop_location (loc);
4729                 XMLNode &after = _session->locations()->get_state();
4730                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4731         }
4732         else {
4733                 XMLNode &before = tpl->get_state();
4734                 tpl->set_hidden (false, this);
4735                 tpl->set (start, end);
4736                 XMLNode &after = tpl->get_state();
4737                 _session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
4738         }
4739
4740         commit_reversible_command ();
4741 }
4742
4743 /** Find regions which exist at a given time, and optionally on a given list of tracks.
4744  *  @param rs List to which found regions are added.
4745  *  @param where Time to look at.
4746  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
4747  */
4748 void
4749 Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackViewList& ts) const
4750 {
4751         const TrackViewList* tracks;
4752
4753         if (ts.empty()) {
4754                 tracks = &track_views;
4755         } else {
4756                 tracks = &ts;
4757         }
4758
4759         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4760                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4761                 if (rtv) {
4762                         boost::shared_ptr<Track> tr;
4763                         boost::shared_ptr<Playlist> pl;
4764
4765                         if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
4766
4767                                 Playlist::RegionList* regions = pl->regions_at (
4768                                                 (nframes64_t) floor ( (double)where * tr->speed()));
4769
4770                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4771                                         RegionView* rv = rtv->view()->find_view (*i);
4772                                         if (rv) {
4773                                                 rs.add (rv);
4774                                         }
4775                                 }
4776
4777                                 delete regions;
4778                         }
4779                 }
4780         }
4781 }
4782
4783 void
4784 Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackViewList& ts) const
4785 {
4786         const TrackViewList* tracks;
4787
4788         if (ts.empty()) {
4789                 tracks = &track_views;
4790         } else {
4791                 tracks = &ts;
4792         }
4793
4794         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4795                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4796                 if (rtv) {
4797                         boost::shared_ptr<Track> tr;
4798                         boost::shared_ptr<Playlist> pl;
4799
4800                         if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
4801
4802                                 Playlist::RegionList* regions = pl->regions_touched (
4803                                                 (nframes64_t) floor ( (double)where * tr->speed()), max_frames);
4804
4805                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4806
4807                                         RegionView* rv = rtv->view()->find_view (*i);
4808
4809                                         if (rv) {
4810                                                 rs.push_back (rv);
4811                                         }
4812                                 }
4813
4814                                 delete regions;
4815                         }
4816                 }
4817         }
4818 }
4819
4820 /** Find all regions which are either:
4821  *      - selected or
4822  *      - the entered_regionview (if allow_entered == true) or
4823  *      - under the preferred edit position AND on a selected track, or on a track
4824  *        which is in the same active edit-enable route group as a selected region (if allow_edit_position == true)
4825  *  @param rs Returned region list.
4826  *  @param allow_entered true to include the entered_regionview in the list.
4827  */
4828 void
4829 Editor::get_regions_for_action (RegionSelection& rs, bool allow_entered, bool allow_edit_position)
4830 {
4831         /* Start with selected regions */
4832         rs = selection->regions;
4833
4834         /* Add the entered_regionview, if requested */
4835         if (allow_entered && entered_regionview) {
4836                 rs.add (entered_regionview);
4837         }
4838
4839         if (allow_edit_position) {
4840
4841                 TrackViewList tracks = selection->tracks;
4842
4843                 /* tracks is currently the set of selected tracks; add any other tracks that
4844                  * have regions that are in the same edit-activated route group as one of
4845                  * our regions */
4846                 for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4847
4848                         RouteGroup* g = (*i)->get_time_axis_view().route_group ();
4849                         if (g && g->is_active() && g->is_edit()) {
4850                                 tracks.add (axis_views_from_routes (g->route_list()));
4851                         }
4852
4853                 }
4854
4855                 if (!tracks.empty()) {
4856                         /* now find regions that are at the edit position on those tracks */
4857                         nframes64_t const where = get_preferred_edit_position ();
4858                         get_regions_at (rs, where, tracks);
4859                 }
4860         }
4861 }
4862
4863 void
4864 Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
4865 {
4866         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4867
4868                 RouteTimeAxisView* tatv;
4869
4870                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4871
4872                         boost::shared_ptr<Playlist> pl;
4873                         vector<boost::shared_ptr<Region> > results;
4874                         RegionView* marv;
4875                         boost::shared_ptr<Track> tr;
4876
4877                         if ((tr = tatv->track()) == 0) {
4878                                 /* bus */
4879                                 continue;
4880                         }
4881
4882                         if ((pl = (tr->playlist())) != 0) {
4883                                 pl->get_region_list_equivalent_regions (region, results);
4884                         }
4885
4886                         for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
4887                                 if ((marv = tatv->view()->find_view (*ir)) != 0) {
4888                                         regions.push_back (marv);
4889                                 }
4890                         }
4891
4892                 }
4893         }
4894 }
4895
4896 void
4897 Editor::show_rhythm_ferret ()
4898 {
4899         if (rhythm_ferret == 0) {
4900                 rhythm_ferret = new RhythmFerret(*this);
4901         }
4902
4903         rhythm_ferret->set_session (_session);
4904         rhythm_ferret->show ();
4905         rhythm_ferret->present ();
4906 }
4907
4908 void
4909 Editor::first_idle ()
4910 {
4911         MessageDialog* dialog = 0;
4912
4913         if (track_views.size() > 1) {
4914                 dialog = new MessageDialog (*this,
4915                                             string_compose (_("Please wait while %1 loads visual data"), PROGRAM_NAME),
4916                                             true,
4917                                             Gtk::MESSAGE_INFO,
4918                                             Gtk::BUTTONS_NONE);
4919                 dialog->present ();
4920                 ARDOUR_UI::instance()->flush_pending ();
4921         }
4922
4923         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
4924                 (*t)->first_idle();
4925         }
4926
4927         // first idle adds route children (automation tracks), so we need to redisplay here
4928         _routes->redisplay ();
4929
4930         delete dialog;
4931
4932         _have_idled = true;
4933 }
4934
4935 gboolean
4936 Editor::_idle_resize (gpointer arg)
4937 {
4938         return ((Editor*)arg)->idle_resize ();
4939 }
4940
4941 void
4942 Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
4943 {
4944         if (resize_idle_id < 0) {
4945                 resize_idle_id = g_idle_add (_idle_resize, this);
4946                 _pending_resize_amount = 0;
4947         }
4948
4949         /* make a note of the smallest resulting height, so that we can clamp the
4950            lower limit at TimeAxisView::hSmall */
4951
4952         int32_t min_resulting = INT32_MAX;
4953
4954         _pending_resize_amount += h;
4955         _pending_resize_view = view;
4956
4957         min_resulting = min (min_resulting, int32_t (_pending_resize_view->current_height()) + _pending_resize_amount);
4958
4959         if (selection->tracks.contains (_pending_resize_view)) {
4960                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4961                         min_resulting = min (min_resulting, int32_t ((*i)->current_height()) + _pending_resize_amount);
4962                 }
4963         }
4964
4965         if (min_resulting < 0) {
4966                 min_resulting = 0;
4967         }
4968
4969         /* clamp */
4970         if (uint32_t (min_resulting) < TimeAxisView::preset_height (HeightSmall)) {
4971                 _pending_resize_amount += TimeAxisView::preset_height (HeightSmall) - min_resulting;
4972         }
4973 }
4974
4975 /** Handle pending resizing of tracks */
4976 bool
4977 Editor::idle_resize ()
4978 {
4979         _pending_resize_view->idle_resize (_pending_resize_view->current_height() + _pending_resize_amount);
4980
4981         if (dynamic_cast<AutomationTimeAxisView*> (_pending_resize_view) == 0 &&
4982             selection->tracks.contains (_pending_resize_view)) {
4983
4984                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4985                         if (*i != _pending_resize_view) {
4986                                 (*i)->idle_resize ((*i)->current_height() + _pending_resize_amount);
4987                         }
4988                 }
4989         }
4990
4991         _pending_resize_amount = 0;
4992         flush_canvas ();
4993         _group_tabs->set_dirty ();
4994         resize_idle_id = -1;
4995
4996         return false;
4997 }
4998
4999 void
5000 Editor::located ()
5001 {
5002         ENSURE_GUI_THREAD (*this, &Editor::located);
5003
5004         playhead_cursor->set_position (_session->audible_frame ());
5005         if (_follow_playhead && !_pending_initial_locate) {
5006                 reset_x_origin_to_follow_playhead ();
5007         }
5008
5009         _pending_locate_request = false;
5010         _pending_initial_locate = false;
5011 }
5012
5013 void
5014 Editor::region_view_added (RegionView *)
5015 {
5016         _summary->set_dirty ();
5017 }
5018
5019 TimeAxisView*
5020 Editor::axis_view_from_route (boost::shared_ptr<Route> r) const
5021 {
5022         TrackViewList::const_iterator j = track_views.begin ();
5023         while (j != track_views.end()) {
5024                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*j);
5025                 if (rtv && rtv->route() == r) {
5026                         return rtv;
5027                 }
5028                 ++j;
5029         }
5030
5031         return 0;
5032 }
5033
5034
5035 TrackViewList
5036 Editor::axis_views_from_routes (boost::shared_ptr<RouteList> r) const
5037 {
5038         TrackViewList t;
5039
5040         for (RouteList::const_iterator i = r->begin(); i != r->end(); ++i) {
5041                 TimeAxisView* tv = axis_view_from_route (*i);
5042                 if (tv) {
5043                         t.push_back (tv);
5044                 }
5045         }
5046
5047         return t;
5048 }
5049
5050
5051 void
5052 Editor::handle_new_route (RouteList& routes)
5053 {
5054         ENSURE_GUI_THREAD (*this, &Editor::handle_new_route, routes)
5055
5056         RouteTimeAxisView *rtv;
5057         list<RouteTimeAxisView*> new_views;
5058
5059         for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
5060                 boost::shared_ptr<Route> route = (*x);
5061
5062                 if (route->is_hidden() || route->is_monitor()) {
5063                         continue;
5064                 }
5065
5066                 DataType dt = route->input()->default_type();
5067
5068                 if (dt == ARDOUR::DataType::AUDIO) {
5069                         rtv = new AudioTimeAxisView (*this, _session, route, *track_canvas);
5070                 } else if (dt == ARDOUR::DataType::MIDI) {
5071                         rtv = new MidiTimeAxisView (*this, _session, route, *track_canvas);
5072                 } else {
5073                         throw unknown_type();
5074                 }
5075
5076                 new_views.push_back (rtv);
5077                 track_views.push_back (rtv);
5078
5079                 rtv->effective_gain_display ();
5080
5081                 rtv->view()->RegionViewAdded.connect (sigc::mem_fun (*this, &Editor::region_view_added));
5082         }
5083
5084         _routes->routes_added (new_views);
5085
5086         if (show_editor_mixer_when_tracks_arrive) {
5087                 show_editor_mixer (true);
5088         }
5089
5090         editor_list_button.set_sensitive (true);
5091
5092         _summary->set_dirty ();
5093 }
5094
5095 void
5096 Editor::timeaxisview_deleted (TimeAxisView *tv)
5097 {
5098         if (_session && _session->deletion_in_progress()) {
5099                 /* the situation is under control */
5100                 return;
5101         }
5102
5103         ENSURE_GUI_THREAD (*this, &Editor::timeaxisview_deleted, tv);
5104
5105         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (tv);
5106
5107         _routes->route_removed (tv);
5108
5109         if (tv == entered_track) {
5110                 entered_track = 0;
5111         }
5112
5113         TimeAxisView::Children c = tv->get_child_list ();
5114         for (TimeAxisView::Children::const_iterator i = c.begin(); i != c.end(); ++i) {
5115                 if (entered_track == i->get()) {
5116                         entered_track = 0;
5117                 }
5118         }
5119
5120         /* remove it from the list of track views */
5121
5122         TrackViewList::iterator i;
5123
5124         if ((i = find (track_views.begin(), track_views.end(), tv)) != track_views.end()) {
5125                 i = track_views.erase (i);
5126         }
5127
5128         /* update whatever the current mixer strip is displaying, if revelant */
5129
5130         boost::shared_ptr<Route> route;
5131
5132         if (rtav) {
5133                 route = rtav->route ();
5134         }
5135
5136         if (current_mixer_strip && current_mixer_strip->route() == route) {
5137
5138                 TimeAxisView* next_tv;
5139
5140                 if (track_views.empty()) {
5141                         next_tv = 0;
5142                 } else if (i == track_views.end()) {
5143                         next_tv = track_views.front();
5144                 } else {
5145                         next_tv = (*i);
5146                 }
5147
5148
5149                 if (next_tv) {
5150                         set_selected_mixer_strip (*next_tv);
5151                 } else {
5152                         /* make the editor mixer strip go away setting the
5153                          * button to inactive (which also unticks the menu option)
5154                          */
5155
5156                         ActionManager::uncheck_toggleaction ("<Actions>/Editor/show-editor-mixer");
5157                 }
5158         }
5159 }
5160
5161 void
5162 Editor::hide_track_in_display (TimeAxisView* tv, bool /*temponly*/)
5163 {
5164         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (tv);
5165
5166         if (rtv && current_mixer_strip && (rtv->route() == current_mixer_strip->route())) {
5167                 // this will hide the mixer strip
5168                 set_selected_mixer_strip (*tv);
5169         }
5170
5171         _routes->hide_track_in_display (*tv);
5172 }
5173
5174 bool
5175 Editor::sync_track_view_list_and_routes ()
5176 {
5177         track_views = TrackViewList (_routes->views ());
5178
5179         _summary->set_dirty ();
5180         _group_tabs->set_dirty ();
5181
5182         return false; // do not call again (until needed)
5183 }
5184
5185 void
5186 Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
5187 {
5188         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5189                 theslot (**i);
5190         }
5191 }
5192
5193 /** Find a RouteTimeAxisView by the ID of its route */
5194 RouteTimeAxisView*
5195 Editor::get_route_view_by_route_id (PBD::ID& id) const
5196 {
5197         RouteTimeAxisView* v;
5198
5199         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
5200                 if((v = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5201                         if(v->route()->id() == id) {
5202                                 return v;
5203                         }
5204                 }
5205         }
5206
5207         return 0;
5208 }
5209
5210 void
5211 Editor::fit_route_group (RouteGroup *g)
5212 {
5213         TrackViewList ts = axis_views_from_routes (g->route_list ());
5214         fit_tracks (ts);
5215 }
5216
5217 void
5218 Editor::consider_auditioning (boost::shared_ptr<Region> region)
5219 {
5220         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
5221
5222         if (r == 0) {
5223                 _session->cancel_audition ();
5224                 return;
5225         }
5226
5227         if (_session->is_auditioning()) {
5228                 _session->cancel_audition ();
5229                 if (r == last_audition_region) {
5230                         return;
5231                 }
5232         }
5233
5234         _session->audition_region (r);
5235         last_audition_region = r;
5236 }
5237
5238
5239 void
5240 Editor::hide_a_region (boost::shared_ptr<Region> r)
5241 {
5242         r->set_hidden (true);
5243 }
5244
5245 void
5246 Editor::show_a_region (boost::shared_ptr<Region> r)
5247 {
5248         r->set_hidden (false);
5249 }
5250
5251 void
5252 Editor::audition_region_from_region_list ()
5253 {
5254         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::consider_auditioning));
5255 }
5256
5257 void
5258 Editor::hide_region_from_region_list ()
5259 {
5260         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::hide_a_region));
5261 }
5262
5263 void
5264 Editor::show_region_in_region_list ()
5265 {
5266         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::show_a_region));
5267 }
5268
5269 void
5270 Editor::step_edit_status_change (bool yn)
5271 {
5272         if (yn) {
5273                 start_step_editing ();
5274         } else {
5275                 stop_step_editing ();
5276         }
5277 }
5278
5279 void
5280 Editor::start_step_editing ()
5281 {
5282         step_edit_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::check_step_edit), 20);
5283 }
5284
5285 void
5286 Editor::stop_step_editing ()
5287 {
5288         step_edit_connection.disconnect ();
5289 }
5290
5291 bool
5292 Editor::check_step_edit ()
5293 {
5294         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5295                 MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (*i);
5296                 if (mtv) {
5297                         mtv->check_step_edit ();
5298                 }
5299         }
5300
5301         return true; // do it again, till we stop
5302 }
5303
5304 bool
5305 Editor::horizontal_scroll_left_press ()
5306 {
5307         ++_scroll_callbacks;
5308
5309         if (_scroll_connection.connected() && _scroll_callbacks < 5) {
5310                 /* delay the first auto-repeat */
5311                 return true;
5312         }
5313
5314         double x = leftmost_position() - current_page_frames() / 5;
5315         if (x < 0) {
5316                 x = 0;
5317         }
5318
5319         reset_x_origin (x);
5320
5321         /* do hacky auto-repeat */
5322         if (!_scroll_connection.connected ()) {
5323                 _scroll_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left_press), 100);
5324                 _scroll_callbacks = 0;
5325         }
5326
5327         return true;
5328 }
5329
5330 void
5331 Editor::horizontal_scroll_left_release ()
5332 {
5333         _scroll_connection.disconnect ();
5334 }
5335
5336 bool
5337 Editor::horizontal_scroll_right_press ()
5338 {
5339         ++_scroll_callbacks;
5340
5341         if (_scroll_connection.connected() && _scroll_callbacks < 5) {
5342                 /* delay the first auto-repeat */
5343                 return true;
5344         }
5345
5346         reset_x_origin (leftmost_position() + current_page_frames() / 5);
5347
5348         /* do hacky auto-repeat */
5349         if (!_scroll_connection.connected ()) {
5350                 _scroll_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right_press), 100);
5351                 _scroll_callbacks = 0;
5352         }
5353
5354         return true;
5355 }
5356
5357 void
5358 Editor::horizontal_scroll_right_release ()
5359 {
5360         _scroll_connection.disconnect ();
5361 }
5362
5363 /** Queue a change for the Editor viewport x origin to follow the playhead */
5364 void
5365 Editor::reset_x_origin_to_follow_playhead ()
5366 {
5367         nframes64_t const frame = playhead_cursor->current_frame;
5368
5369         if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
5370
5371                 if (_session->transport_speed() < 0) {
5372
5373                         if (frame > (current_page_frames() / 2)) {
5374                                 center_screen (frame-(current_page_frames()/2));
5375                         } else {
5376                                 center_screen (current_page_frames()/2);
5377                         }
5378
5379                 } else {
5380
5381                         if (frame < leftmost_frame) {
5382                                 /* moving left */
5383                                 nframes64_t l = 0;
5384                                 if (_session->transport_rolling()) {
5385                                         /* rolling; end up with the playhead at the right of the page */
5386                                         l = frame - current_page_frames ();
5387                                 } else {
5388                                         /* not rolling: end up with the playhead 3/4 of the way along the page */
5389                                         l = frame - (3 * current_page_frames() / 4);
5390                                 }
5391
5392                                 if (l < 0) {
5393                                         l = 0;
5394                                 }
5395
5396                                 center_screen_internal (l + (current_page_frames() / 2), current_page_frames ());
5397                         } else {
5398                                 /* moving right */
5399                                 if (_session->transport_rolling()) {
5400                                         /* rolling: end up with the playhead on the left of the page */
5401                                         center_screen_internal (frame + (current_page_frames() / 2), current_page_frames ());
5402                                 } else {
5403                                         /* not rolling: end up with the playhead 1/4 of the way along the page */
5404                                         center_screen_internal (frame + (current_page_frames() / 4), current_page_frames ());
5405                                 }
5406                         }
5407                 }
5408         }
5409 }
5410
5411 void
5412 Editor::super_rapid_screen_update ()
5413 {
5414         if (!_session || !_session->engine().running()) {
5415                 return;
5416         }
5417
5418         /* METERING / MIXER STRIPS */
5419
5420         /* update track meters, if required */
5421         if (is_mapped() && meters_running) {
5422                 RouteTimeAxisView* rtv;
5423                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5424                         if ((rtv = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5425                                 rtv->fast_update ();
5426                         }
5427                 }
5428         }
5429
5430         /* and any current mixer strip */
5431         if (current_mixer_strip) {
5432                 current_mixer_strip->fast_update ();
5433         }
5434
5435         /* PLAYHEAD AND VIEWPORT */
5436
5437         nframes64_t const frame = _session->audible_frame();
5438
5439         /* There are a few reasons why we might not update the playhead / viewport stuff:
5440          *
5441          * 1.  we don't update things when there's a pending locate request, otherwise
5442          *     when the editor requests a locate there is a chance that this method
5443          *     will move the playhead before the locate request is processed, causing
5444          *     a visual glitch.
5445          * 2.  if we're not rolling, there's nothing to do here (locates are handled elsewhere).
5446          * 3.  if we're still at the same frame that we were last time, there's nothing to do.
5447          */
5448
5449         if (!_pending_locate_request && _session->transport_speed() != 0 && frame != last_update_frame) {
5450
5451                 last_update_frame = frame;
5452
5453                 if (!_dragging_playhead) {
5454                         playhead_cursor->set_position (frame);
5455                 }
5456
5457                 if (!_stationary_playhead) {
5458
5459                         if (!_dragging_playhead && _follow_playhead && _session->requested_return_frame() < 0) {
5460                                 reset_x_origin_to_follow_playhead ();
5461                         }
5462
5463                 } else {
5464
5465                         /* don't do continuous scroll till the new position is in the rightmost quarter of the
5466                            editor canvas
5467                         */
5468 #if 0
5469                         // FIXME DO SOMETHING THAT WORKS HERE - this is 2.X code
5470                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
5471                         if (target <= 0.0) {
5472                                 target = 0.0;
5473                         }
5474                         if (fabs(target - current) < current_page_frames() / frames_per_unit) {
5475                                 target = (target * 0.15) + (current * 0.85);
5476                         } else {
5477                                 /* relax */
5478                         }
5479
5480                         current = target;
5481                         set_horizontal_position (current);
5482 #endif
5483                 }
5484
5485         }
5486 }
5487
5488
5489 void
5490 Editor::session_going_away ()
5491 {
5492         _have_idled = false;
5493
5494         _session_connections.drop_connections ();
5495
5496         super_rapid_screen_update_connection.disconnect ();
5497
5498         selection->clear ();
5499         cut_buffer->clear ();
5500
5501         clicked_regionview = 0;
5502         clicked_axisview = 0;
5503         clicked_routeview = 0;
5504         clicked_crossfadeview = 0;
5505         entered_regionview = 0;
5506         entered_track = 0;
5507         last_update_frame = 0;
5508         _drags->abort ();
5509
5510         playhead_cursor->canvas_item.hide ();
5511
5512         /* rip everything out of the list displays */
5513
5514         _regions->clear ();
5515         _routes->clear ();
5516         _route_groups->clear ();
5517
5518         /* do this first so that deleting a track doesn't reset cms to null
5519            and thus cause a leak.
5520         */
5521
5522         if (current_mixer_strip) {
5523                 if (current_mixer_strip->get_parent() != 0) {
5524                         global_hpacker.remove (*current_mixer_strip);
5525                 }
5526                 delete current_mixer_strip;
5527                 current_mixer_strip = 0;
5528         }
5529
5530         /* delete all trackviews */
5531
5532         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5533                 delete *i;
5534         }
5535         track_views.clear ();
5536
5537         zoom_range_clock.set_session (0);
5538         nudge_clock.set_session (0);
5539
5540         editor_list_button.set_active(false);
5541         editor_list_button.set_sensitive(false);
5542
5543         /* clear tempo/meter rulers */
5544         remove_metric_marks ();
5545         hide_measures ();
5546         clear_marker_display ();
5547
5548         delete current_bbt_points;
5549         current_bbt_points = 0;
5550
5551         /* get rid of any existing editor mixer strip */
5552
5553         WindowTitle title(Glib::get_application_name());
5554         title += _("Editor");
5555
5556         set_title (title.get_string());
5557
5558         SessionHandlePtr::session_going_away ();
5559 }
5560
5561
5562 void
5563 Editor::show_editor_list (bool yn)
5564 {
5565         if (yn) {
5566                 the_notebook.show();
5567         } else {
5568                 the_notebook.hide();
5569         }
5570 }
5571
5572 void
5573 Editor::change_region_layering_order (framepos_t position)
5574 {
5575         if (!clicked_routeview) {
5576                 if (layering_order_editor) {
5577                         layering_order_editor->hide ();
5578                 }
5579                 return;
5580         }
5581
5582         boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track> (clicked_routeview->route());
5583
5584         if (!track) {
5585                 return;
5586         }
5587
5588         boost::shared_ptr<Playlist> pl = track->playlist();
5589
5590         if (!pl) {
5591                 return;
5592         }
5593
5594         if (layering_order_editor == 0) {
5595                 layering_order_editor = new RegionLayeringOrderEditor(*this);
5596         }
5597
5598         layering_order_editor->set_context (clicked_routeview->name(), _session, pl, position);
5599         layering_order_editor->maybe_present ();
5600 }
5601
5602 void
5603 Editor::update_region_layering_order_editor (framepos_t frame)
5604 {
5605         if (layering_order_editor && layering_order_editor->is_visible ()) {
5606                 change_region_layering_order (frame);
5607         }
5608 }