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 <boost/none.hpp>
  32
  33 #include <sigc++/bind.h>
  34
  35 #include "pbd/convert.h"
  36 #include "pbd/error.h"
  37 #include "pbd/enumwriter.h"
  38 #include "pbd/memento_command.h"
  39 #include "pbd/unknown_type.h"
  40
  41 #include <glibmm/miscutils.h>
  42 #include <gtkmm/image.h>
  43 #include <gdkmm/color.h>
  44 #include <gdkmm/bitmap.h>
  45
  46 #include <gtkmm2ext/grouped_buttons.h>
  47 #include <gtkmm2ext/gtk_ui.h>
  48 #include <gtkmm2ext/tearoff.h>
  49 #include <gtkmm2ext/utils.h>
  50 #include <gtkmm2ext/window_title.h>
  51 #include <gtkmm2ext/choice.h>
  52 #include <gtkmm2ext/cell_renderer_pixbuf_toggle.h>
  53
  54 #include "ardour/audio_diskstream.h"
  55 #include "ardour/audio_track.h"
  56 #include "ardour/audioplaylist.h"
  57 #include "ardour/audioregion.h"
  58 #include "ardour/location.h"
  59 #include "ardour/midi_region.h"
  60 #include "ardour/plugin_manager.h"
  61 #include "ardour/profile.h"
  62 #include "ardour/route_group.h"
  63 #include "ardour/session_directory.h"
  64 #include "ardour/session_route.h"
  65 #include "ardour/session_state_utils.h"
  66 #include "ardour/tempo.h"
  67 #include "ardour/utils.h"
  68
  69 #include "control_protocol/control_protocol.h"
  70
  71 #include "ardour_ui.h"
  72 #include "editor.h"
  73 #include "keyboard.h"
  74 #include "marker.h"
  75 #include "playlist_selector.h"
  76 #include "audio_region_view.h"
  77 #include "rgb_macros.h"
  78 #include "selection.h"
  79 #include "audio_streamview.h"
  80 #include "time_axis_view.h"
  81 #include "audio_time_axis.h"
  82 #include "utils.h"
  83 #include "crossfade_view.h"
  84 #include "editing.h"
  85 #include "public_editor.h"
  86 #include "crossfade_edit.h"
  87 #include "canvas_impl.h"
  88 #include "actions.h"
  89 #include "sfdb_ui.h"
  90 #include "gui_thread.h"
  91 #include "simpleline.h"
  92 #include "rhythm_ferret.h"
  93 #include "actions.h"
  94 #include "tempo_lines.h"
  95 #include "analysis_window.h"
  96 #include "bundle_manager.h"
  97 #include "global_port_matrix.h"
  98 #include "editor_drag.h"
  99 #include "editor_group_tabs.h"
 100 #include "automation_time_axis.h"
 101 #include "editor_routes.h"
 102 #include "midi_time_axis.h"
 103 #include "mixer_strip.h"
 104 #include "editor_route_groups.h"
 105 #include "editor_regions.h"
 106 #include "editor_snapshots.h"
 107
 108 #include "i18n.h"
 109
 110 #ifdef WITH_CMT
 111 #include "imageframe_socket_handler.h"
 112 #endif
 113
 114 using namespace std;
 115 using namespace sigc;
 116 using namespace ARDOUR;
 117 using namespace PBD;
 118 using namespace Gtk;
 119 using namespace Glib;
 120 using namespace Gtkmm2ext;
 121 using namespace Editing;
 122
 123 using PBD::internationalize;
 124 using PBD::atoi;
 125
 126 const double Editor::timebar_height = 15.0;
 127
 128 #include "editor_xpms"
 129
 130 static const gchar *_snap_type_strings[] = {
 131         N_("CD Frames"),
 132         N_("SMPTE Frames"),
 133         N_("SMPTE Seconds"),
 134         N_("SMPTE Minutes"),
 135         N_("Seconds"),
 136         N_("Minutes"),
 137         N_("Beats/32"),
 138         N_("Beats/16"),
 139         N_("Beats/8"),
 140         N_("Beats/4"),
 141         N_("Beats/3"),
 142         N_("Beats"),
 143         N_("Bars"),
 144         N_("Marks"),
 145         N_("Region starts"),
 146         N_("Region ends"),
 147         N_("Region syncs"),
 148         N_("Region bounds"),
 149         0
 150 };
 151
 152 static const gchar *_snap_mode_strings[] = {
 153         N_("No Grid"),
 154         N_("Grid"),
 155         N_("Magnetic"),
 156         0
 157 };
 158
 159 static const gchar *_edit_point_strings[] = {
 160         N_("Playhead"),
 161         N_("Marker"),
 162         N_("Mouse"),
 163         0
 164 };
 165
 166 static const gchar *_zoom_focus_strings[] = {
 167         N_("Left"),
 168         N_("Right"),
 169         N_("Center"),
 170         N_("Playhead"),
 171         N_("Mouse"),
 172         N_("Active Mark"),
 173         0
 174 };
 175
 176 #ifdef USE_RUBBERBAND
 177 static const gchar *_rb_opt_strings[] = {
 178         N_("Mushy"),
 179         N_("Smooth"),
 180         N_("Balanced multitimbral mixture"),
 181         N_("Unpitched percussion with stable notes"),
 182         N_("Crisp monophonic instrumental"),
 183         N_("Unpitched solo percussion"),
 184         0
 185 };
 186 #endif
 187
 188 /* Soundfile  drag-n-drop */
 189
 190 Gdk::Cursor* Editor::cross_hair_cursor = 0;
 191 Gdk::Cursor* Editor::selector_cursor = 0;
 192 Gdk::Cursor* Editor::trimmer_cursor = 0;
 193 Gdk::Cursor* Editor::grabber_cursor = 0;
 194 Gdk::Cursor* Editor::grabber_edit_point_cursor = 0;
 195 Gdk::Cursor* Editor::zoom_cursor = 0;
 196 Gdk::Cursor* Editor::time_fx_cursor = 0;
 197 Gdk::Cursor* Editor::fader_cursor = 0;
 198 Gdk::Cursor* Editor::speaker_cursor = 0;
 199 Gdk::Cursor* Editor::midi_pencil_cursor = 0;
 200 Gdk::Cursor* Editor::midi_select_cursor = 0;
 201 Gdk::Cursor* Editor::midi_resize_cursor = 0;
 202 Gdk::Cursor* Editor::midi_erase_cursor = 0;
 203 Gdk::Cursor* Editor::wait_cursor = 0;
 204 Gdk::Cursor* Editor::timebar_cursor = 0;
 205 Gdk::Cursor* Editor::transparent_cursor = 0;
 206
 207 void
 208 show_me_the_size (Requisition* r, const char* what)
 209 {
 210         cerr << "size of " << what << " = " << r->width << " x " << r->height << endl;
 211 }
 212
 213 Editor::Editor ()
 214           /* time display buttons */
 215         : minsec_label (_("Mins:Secs"))
 216         , bbt_label (_("Bars:Beats"))
 217         , smpte_label (_("Timecode"))
 218         , frame_label (_("Samples"))
 219         , tempo_label (_("Tempo"))
 220         , meter_label (_("Meter"))
 221         , mark_label (_("Location Markers"))
 222         , range_mark_label (_("Range Markers"))
 223         , transport_mark_label (_("Loop/Punch Ranges"))
 224         , cd_mark_label (_("CD Markers"))
 225         , edit_packer (4, 4, true)
 226
 227           /* the values here don't matter: layout widgets
 228              reset them as needed.
 229           */
 230
 231         , vertical_adjustment (0.0, 0.0, 10.0, 400.0)
 232         , horizontal_adjustment (0.0, 0.0, 20.0, 1200.0)
 233
 234           /* tool bar related */
 235
 236         , edit_point_clock (X_("editpoint"), false, X_("EditPointClock"), true)
 237         , zoom_range_clock (X_("zoomrange"), false, X_("ZoomRangeClock"), true, true)
 238
 239         , toolbar_selection_clock_table (2,3)
 240
 241         , automation_mode_button (_("mode"))
 242         , global_automation_button (_("automation"))
 243
 244         , midi_panic_button (_("Panic"))
 245
 246 #ifdef WITH_CMT
 247         , image_socket_listener(0)
 248 #endif
 249
 250           /* nudge */
 251
 252         , nudge_clock (X_("nudge"), false, X_("NudgeClock"), true, true)
 253         , meters_running(false)
 254         , _pending_locate_request (false)
 255
 256 {
 257         constructed = false;
 258
 259         /* we are a singleton */
 260
 261         PublicEditor::_instance = this;
 262
 263         session = 0;
 264         _have_idled = false;
 265
 266         selection = new Selection (this);
 267         cut_buffer = new Selection (this);
 268
 269         clicked_regionview = 0;
 270         clicked_axisview = 0;
 271         clicked_routeview = 0;
 272         clicked_crossfadeview = 0;
 273         clicked_control_point = 0;
 274         last_update_frame = 0;
 275         _drag = 0;
 276         current_mixer_strip = 0;
 277         current_bbt_points = 0;
 278         tempo_lines = 0;
 279
 280         snap_type_strings =  I18N (_snap_type_strings);
 281         snap_mode_strings =  I18N (_snap_mode_strings);
 282         zoom_focus_strings = I18N (_zoom_focus_strings);
 283         edit_point_strings = I18N (_edit_point_strings);
 284 #ifdef USE_RUBBERBAND
 285         rb_opt_strings = I18N (_rb_opt_strings);
 286 #endif
 287
 288         snap_threshold = 5.0;
 289         bbt_beat_subdivision = 4;
 290         _canvas_width = 0;
 291         _canvas_height = 0;
 292         last_autoscroll_x = 0;
 293         last_autoscroll_y = 0;
 294         autoscroll_active = false;
 295         autoscroll_timeout_tag = -1;
 296         interthread_progress_window = 0;
 297         logo_item = 0;
 298
 299         analysis_window = 0;
 300
 301         current_interthread_info = 0;
 302         _show_measures = true;
 303         _show_waveforms_recording = true;
 304         show_gain_after_trim = false;
 305         verbose_cursor_on = true;
 306         route_removal = false;
 307         last_item_entered = 0;
 308         last_item_entered_n = 0;
 309
 310         have_pending_keyboard_selection = false;
 311         _follow_playhead = true;
 312         _xfade_visibility = true;
 313         editor_ruler_menu = 0;
 314         no_ruler_shown_update = false;
 315         marker_menu = 0;
 316         start_end_marker_menu = 0;
 317         range_marker_menu = 0;
 318         marker_menu_item = 0;
 319         tm_marker_menu = 0;
 320         transport_marker_menu = 0;
 321         new_transport_marker_menu = 0;
 322         editor_mixer_strip_width = Wide;
 323         show_editor_mixer_when_tracks_arrive = false;
 324         region_edit_menu_split_multichannel_item = 0;
 325         region_edit_menu_split_item = 0;
 326         temp_location = 0;
 327         leftmost_frame = 0;
 328         current_stepping_trackview = 0;
 329         entered_track = 0;
 330         entered_regionview = 0;
 331         entered_marker = 0;
 332         clear_entered_track = false;
 333         _new_regionviews_show_envelope = false;
 334         current_timefx = 0;
 335         playhead_cursor = 0;
 336         button_release_can_deselect = true;
 337         _dragging_playhead = false;
 338         _dragging_edit_point = false;
 339         _dragging_hscrollbar = false;
 340         select_new_marker = false;
 341         rhythm_ferret = 0;
 342         _bundle_manager = 0;
 343         for (ARDOUR::DataType::iterator i = ARDOUR::DataType::begin(); i != ARDOUR::DataType::end(); ++i) {
 344                 _global_port_matrix[*i] = 0;
 345         }
 346         allow_vertical_scroll = false;
 347         no_save_visual = false;
 348         resize_idle_id = -1;
 349
 350         scrubbing_direction = 0;
 351
 352         sfbrowser = 0;
 353
 354         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 355         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 356         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 357         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 358         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 359
 360         _edit_point = EditAtMouse;
 361         _internal_editing = false;
 362         current_canvas_cursor = 0;
 363
 364         frames_per_unit = 2048; /* too early to use reset_zoom () */
 365         reset_hscrollbar_stepping ();
 366
 367         zoom_focus = ZoomFocusLeft;
 368         set_zoom_focus (ZoomFocusLeft);
 369         zoom_range_clock.ValueChanged.connect (mem_fun(*this, &Editor::zoom_adjustment_changed));
 370
 371         bbt_label.set_name ("EditorTimeButton");
 372         bbt_label.set_size_request (-1, (int)timebar_height);
 373         bbt_label.set_alignment (1.0, 0.5);
 374         bbt_label.set_padding (5,0);
 375         bbt_label.hide ();
 376         bbt_label.set_no_show_all();
 377         minsec_label.set_name ("EditorTimeButton");
 378         minsec_label.set_size_request (-1, (int)timebar_height);
 379         minsec_label.set_alignment (1.0, 0.5);
 380         minsec_label.set_padding (5,0);
 381         minsec_label.hide ();
 382         minsec_label.set_no_show_all();
 383         smpte_label.set_name ("EditorTimeButton");
 384         smpte_label.set_size_request (-1, (int)timebar_height);
 385         smpte_label.set_alignment (1.0, 0.5);
 386         smpte_label.set_padding (5,0);
 387         smpte_label.hide ();
 388         smpte_label.set_no_show_all();
 389         frame_label.set_name ("EditorTimeButton");
 390         frame_label.set_size_request (-1, (int)timebar_height);
 391         frame_label.set_alignment (1.0, 0.5);
 392         frame_label.set_padding (5,0);
 393         frame_label.hide ();
 394         frame_label.set_no_show_all();
 395
 396         tempo_label.set_name ("EditorTimeButton");
 397         tempo_label.set_size_request (-1, (int)timebar_height);
 398         tempo_label.set_alignment (1.0, 0.5);
 399         tempo_label.set_padding (5,0);
 400         tempo_label.hide();
 401         tempo_label.set_no_show_all();
 402         meter_label.set_name ("EditorTimeButton");
 403         meter_label.set_size_request (-1, (int)timebar_height);
 404         meter_label.set_alignment (1.0, 0.5);
 405         meter_label.set_padding (5,0);
 406         meter_label.hide();
 407         meter_label.set_no_show_all();
 408         mark_label.set_name ("EditorTimeButton");
 409         mark_label.set_size_request (-1, (int)timebar_height);
 410         mark_label.set_alignment (1.0, 0.5);
 411         mark_label.set_padding (5,0);
 412         mark_label.hide();
 413         mark_label.set_no_show_all();
 414         cd_mark_label.set_name ("EditorTimeButton");
 415         cd_mark_label.set_size_request (-1, (int)timebar_height);
 416         cd_mark_label.set_alignment (1.0, 0.5);
 417         cd_mark_label.set_padding (5,0);
 418         cd_mark_label.hide();
 419         cd_mark_label.set_no_show_all();
 420         range_mark_label.set_name ("EditorTimeButton");
 421         range_mark_label.set_size_request (-1, (int)timebar_height);
 422         range_mark_label.set_alignment (1.0, 0.5);
 423         range_mark_label.set_padding (5,0);
 424         range_mark_label.hide();
 425         range_mark_label.set_no_show_all();
 426         transport_mark_label.set_name ("EditorTimeButton");
 427         transport_mark_label.set_size_request (-1, (int)timebar_height);
 428         transport_mark_label.set_alignment (1.0, 0.5);
 429         transport_mark_label.set_padding (5,0);
 430         transport_mark_label.hide();
 431         transport_mark_label.set_no_show_all();
 432
 433         initialize_rulers ();
 434         _summary = new EditorSummary (this);
 435         initialize_canvas ();
 436
 437         selection->TimeChanged.connect (mem_fun(*this, &Editor::time_selection_changed));
 438         selection->TracksChanged.connect (mem_fun(*this, &Editor::track_selection_changed));
 439         editor_regions_selection_changed_connection = selection->RegionsChanged.connect (mem_fun(*this, &Editor::region_selection_changed));
 440         selection->PointsChanged.connect (mem_fun(*this, &Editor::point_selection_changed));
 441         selection->MarkersChanged.connect (mem_fun(*this, &Editor::marker_selection_changed));
 442
 443         edit_controls_vbox.set_spacing (0);
 444         horizontal_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::scroll_canvas_horizontally), false);
 445         vertical_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::tie_vertical_scrolling), true);
 446         track_canvas->signal_map_event().connect (mem_fun (*this, &Editor::track_canvas_map_handler));
 447
 448         HBox* h = manage (new HBox);
 449         _group_tabs = new EditorGroupTabs (this);
 450         h->pack_start (*_group_tabs, PACK_SHRINK);
 451         h->pack_start (edit_controls_vbox);
 452         controls_layout.add (*h);
 453
 454         controls_layout.set_name ("EditControlsBase");
 455         controls_layout.add_events (Gdk::SCROLL_MASK);
 456         controls_layout.signal_scroll_event().connect (mem_fun(*this, &Editor::control_layout_scroll), false);
 457
 458         controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
 459         controls_layout.signal_button_release_event().connect (mem_fun(*this, &Editor::edit_controls_button_release));
 460         controls_layout_size_request_connection = controls_layout.signal_size_request().connect (mem_fun (*this, &Editor::controls_layout_size_request));
 461
 462         edit_vscrollbar.set_adjustment (vertical_adjustment);
 463         edit_hscrollbar.set_adjustment (horizontal_adjustment);
 464
 465         edit_hscrollbar.signal_button_press_event().connect (mem_fun(*this, &Editor::hscrollbar_button_press), false);
 466         edit_hscrollbar.signal_button_release_event().connect (mem_fun(*this, &Editor::hscrollbar_button_release), false);
 467         edit_hscrollbar.signal_size_allocate().connect (mem_fun(*this, &Editor::hscrollbar_allocate));
 468
 469         edit_hscrollbar.set_name ("EditorHScrollbar");
 470
 471         build_cursors ();
 472
 473         edit_point_clock.ValueChanged.connect (mem_fun(*this, &Editor::edit_point_clock_changed));
 474
 475         ArdourCanvas::Canvas* time_pad = manage(new ArdourCanvas::Canvas());
 476         ArdourCanvas::SimpleLine* pad_line_1 = manage(new ArdourCanvas::SimpleLine(*time_pad->root(),
 477                         0.0, 1.0, 100.0, 1.0));
 478         pad_line_1->property_color_rgba() = 0xFF0000FF;
 479         pad_line_1->show();
 480         time_pad->show();
 481
 482         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
 483         time_canvas_vbox.set_size_request (-1, -1);
 484
 485         ruler_label_event_box.add (ruler_label_vbox);
 486         ruler_label_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 487         ruler_label_event_box.signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_label_button_release));
 488
 489         time_button_event_box.add (time_button_vbox);
 490         time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 491         time_button_event_box.signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_label_button_release));
 492
 493         /* these enable us to have a dedicated window (for cursor setting, etc.)
 494            for the canvas areas.
 495         */
 496
 497         track_canvas_event_box.add (*track_canvas);
 498
 499         time_canvas_event_box.add (time_canvas_vbox);
 500         time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 501
 502         edit_packer.set_col_spacings (0);
 503         edit_packer.set_row_spacings (0);
 504         edit_packer.set_homogeneous (false);
 505         edit_packer.set_border_width (0);
 506         edit_packer.set_name ("EditorWindow");
 507
 508         edit_packer.attach (zoom_vbox,               0, 1, 0, 2,    SHRINK,        FILL, 0, 0);
 509         /* labels for the rulers */
 510         edit_packer.attach (ruler_label_event_box,   1, 2, 0, 1,    FILL,        SHRINK, 0, 0);
 511         /* labels for the marker "tracks" */
 512         edit_packer.attach (time_button_event_box,   1, 2, 1, 2,    FILL,        SHRINK, 0, 0);
 513         /* the rulers */
 514         edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
 515         /* track controls */
 516         edit_packer.attach (controls_layout,         0, 2, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
 517         /* main canvas */
 518         edit_packer.attach (track_canvas_event_box,  2, 3, 1, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 519
 520         bottom_hbox.set_border_width (2);
 521         bottom_hbox.set_spacing (3);
 522
 523         _route_groups = new EditorRouteGroups (this);
 524         _routes = new EditorRoutes (this);
 525         _regions = new EditorRegions (this);
 526         _snapshots = new EditorSnapshots (this);
 527
 528         named_selection_scroller.add (named_selection_display);
 529         named_selection_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 530
 531         named_selection_model = TreeStore::create (named_selection_columns);
 532         named_selection_display.set_model (named_selection_model);
 533         named_selection_display.append_column (_("Chunks"), named_selection_columns.text);
 534         named_selection_display.set_headers_visible (false);
 535         named_selection_display.set_size_request (100, -1);
 536         named_selection_display.set_name ("NamedSelectionDisplay");
 537
 538         named_selection_display.get_selection()->set_mode (SELECTION_SINGLE);
 539         named_selection_display.set_size_request (100, -1);
 540         named_selection_display.signal_button_release_event().connect (mem_fun(*this, &Editor::named_selection_display_button_release), false);
 541         named_selection_display.signal_key_release_event().connect (mem_fun(*this, &Editor::named_selection_display_key_release), false);
 542         named_selection_display.get_selection()->signal_changed().connect (mem_fun (*this, &Editor::named_selection_display_selection_changed));
 543
 544         Gtk::Label* nlabel;
 545
 546         nlabel = manage (new Label (_("Regions")));
 547         nlabel->set_angle (-90);
 548         the_notebook.append_page (_regions->widget (), *nlabel);
 549         nlabel = manage (new Label (_("Tracks/Busses")));
 550         nlabel->set_angle (-90);
 551         the_notebook.append_page (_routes->widget (), *nlabel);
 552         nlabel = manage (new Label (_("Snapshots")));
 553         nlabel->set_angle (-90);
 554         the_notebook.append_page (_snapshots->widget (), *nlabel);
 555         nlabel = manage (new Label (_("Route Groups")));
 556         nlabel->set_angle (-90);
 557         the_notebook.append_page (_route_groups->widget (), *nlabel);
 558
 559         if (!Profile->get_sae()) {
 560                 nlabel = manage (new Label (_("Chunks")));
 561                 nlabel->set_angle (-90);
 562                 the_notebook.append_page (named_selection_scroller, *nlabel);
 563         }
 564
 565         the_notebook.set_show_tabs (true);
 566         the_notebook.set_scrollable (true);
 567         the_notebook.popup_enable ();
 568         the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 569         the_notebook.show_all ();
 570
 571         post_maximal_editor_width = 0;
 572         post_maximal_pane_position = 0;
 573
 574         VPaned *editor_summary_pane = manage(new VPaned());
 575         editor_summary_pane->pack1(edit_packer);
 576         editor_summary_pane->pack2(*_summary);
 577
 578         edit_pane.pack1 (*editor_summary_pane, true, true);
 579         edit_pane.pack2 (the_notebook, false, true);
 580
 581         edit_pane.signal_size_allocate().connect (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 582
 583         top_hbox.pack_start (toolbar_frame, false, true);
 584
 585         HBox *hbox = manage (new HBox);
 586         hbox->pack_start (edit_pane, true, true);
 587
 588         global_vpacker.pack_start (top_hbox, false, false);
 589         global_vpacker.pack_start (*hbox, true, true);
 590
 591         global_hpacker.pack_start (global_vpacker, true, true);
 592
 593         set_name ("EditorWindow");
 594         add_accel_group (ActionManager::ui_manager->get_accel_group());
 595
 596         status_bar_hpacker.show ();
 597
 598         vpacker.pack_end (status_bar_hpacker, false, false);
 599         vpacker.pack_end (global_hpacker, true, true);
 600
 601         /* register actions now so that set_state() can find them and set toggles/checks etc */
 602
 603         register_actions ();
 604
 605         setup_toolbar ();
 606         setup_midi_toolbar ();
 607
 608         snap_type = SnapToBeat;
 609         set_snap_to (snap_type);
 610         snap_mode = SnapOff;
 611         set_snap_mode (snap_mode);
 612         set_mouse_mode (MouseObject, true);
 613         set_edit_point_preference (EditAtMouse, true);
 614
 615         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
 616         set_state (*node, Stateful::loading_state_version);
 617
 618         _playlist_selector = new PlaylistSelector();
 619         _playlist_selector->signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 620
 621         RegionView::RegionViewGoingAway.connect (mem_fun(*this, &Editor::catch_vanishing_regionview));
 622
 623         /* nudge stuff */
 624
 625         nudge_forward_button.add (*(manage (new Image (::get_icon("nudge_right")))));
 626         nudge_backward_button.add (*(manage (new Image (::get_icon("nudge_left")))));
 627
 628         ARDOUR_UI::instance()->tooltips().set_tip (nudge_forward_button, _("Nudge Region/Selection Forwards"));
 629         ARDOUR_UI::instance()->tooltips().set_tip (nudge_backward_button, _("Nudge Region/Selection Backwards"));
 630
 631         nudge_forward_button.set_name ("TransportButton");
 632         nudge_backward_button.set_name ("TransportButton");
 633
 634         fade_context_menu.set_name ("ArdourContextMenu");
 635
 636         /* icons, titles, WM stuff */
 637
 638         list<Glib::RefPtr<Gdk::Pixbuf> > window_icons;
 639         Glib::RefPtr<Gdk::Pixbuf> icon;
 640
 641         if ((icon = ::get_icon ("ardour_icon_16px")) != 0) {
 642                 window_icons.push_back (icon);
 643         }
 644         if ((icon = ::get_icon ("ardour_icon_22px")) != 0) {
 645                 window_icons.push_back (icon);
 646         }
 647         if ((icon = ::get_icon ("ardour_icon_32px")) != 0) {
 648                 window_icons.push_back (icon);
 649         }
 650         if ((icon = ::get_icon ("ardour_icon_48px")) != 0) {
 651                 window_icons.push_back (icon);
 652         }
 653         if (!window_icons.empty()) {
 654                 set_icon_list (window_icons);
 655                 set_default_icon_list (window_icons);
 656         }
 657
 658         WindowTitle title(Glib::get_application_name());
 659         title += _("Editor");
 660         set_title (title.get_string());
 661         set_wmclass (X_("ardour_editor"), "Ardour");
 662
 663         add (vpacker);
 664         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 665
 666         signal_configure_event().connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 667         signal_delete_event().connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
 668
 669         /* allow external control surfaces/protocols to do various things */
 670
 671         ControlProtocol::ZoomToSession.connect (mem_fun (*this, &Editor::temporal_zoom_session));
 672         ControlProtocol::ZoomIn.connect (bind (mem_fun (*this, &Editor::temporal_zoom_step), false));
 673         ControlProtocol::ZoomOut.connect (bind (mem_fun (*this, &Editor::temporal_zoom_step), true));
 674         ControlProtocol::ScrollTimeline.connect (mem_fun (*this, &Editor::control_scroll));
 675         BasicUI::AccessAction.connect (mem_fun (*this, &Editor::access_action));
 676
 677         Config->ParameterChanged.connect (mem_fun (*this, &Editor::parameter_changed));
 678
 679         _last_normalization_value = 0;
 680
 681         constructed = true;
 682         instant_save ();
 683 }
 684
 685 Editor::~Editor()
 686 {
 687 #ifdef WITH_CMT
 688         if(image_socket_listener) {
 689                 if(image_socket_listener->is_connected())
 690                 {
 691                         image_socket_listener->close_connection() ;
 692                 }
 693
 694                 delete image_socket_listener ;
 695                 image_socket_listener = 0 ;
 696         }
 697 #endif
 698
 699         delete _routes;
 700         delete _route_groups;
 701         delete track_canvas;
 702         delete _drag;
 703 }
 704
 705 void
 706 Editor::add_toplevel_controls (Container& cont)
 707 {
 708         vpacker.pack_start (cont, false, false);
 709         cont.show_all ();
 710 }
 711
 712 void
 713 Editor::catch_vanishing_regionview (RegionView *rv)
 714 {
 715         /* note: the selection will take care of the vanishing
 716            audioregionview by itself.
 717         */
 718
 719         if (_drag && rv->get_canvas_group() == _drag->item() && !_drag->ending()) {
 720                 _drag->end_grab (0);
 721                 delete _drag;
 722                 _drag = 0;
 723         }
 724
 725         if (clicked_regionview == rv) {
 726                 clicked_regionview = 0;
 727         }
 728
 729         if (entered_regionview == rv) {
 730                 set_entered_regionview (0);
 731         }
 732 }
 733
 734 void
 735 Editor::set_entered_regionview (RegionView* rv)
 736 {
 737         if (rv == entered_regionview) {
 738                 return;
 739         }
 740
 741         if (entered_regionview) {
 742                 entered_regionview->exited ();
 743         }
 744
 745         if ((entered_regionview = rv) != 0) {
 746                 entered_regionview->entered ();
 747         }
 748 }
 749
 750 void
 751 Editor::set_entered_track (TimeAxisView* tav)
 752 {
 753         if (entered_track) {
 754                 entered_track->exited ();
 755         }
 756
 757         if ((entered_track = tav) != 0) {
 758                 entered_track->entered ();
 759         }
 760 }
 761
 762 void
 763 Editor::show_window ()
 764 {
 765         if (! is_visible ()) {
 766                 show_all ();
 767
 768                 /* re-hide editor list if necessary */
 769                 editor_list_button_toggled ();
 770
 771                 /* re-hide summary widget if necessary */
 772                 parameter_changed ("show-summary");
 773
 774                 parameter_changed ("show-edit-group-tabs");
 775
 776                 /* now reset all audio_time_axis heights, because widgets might need
 777                    to be re-hidden
 778                 */
 779
 780                 TimeAxisView *tv;
 781
 782                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 783                         tv = (static_cast<TimeAxisView*>(*i));
 784                         tv->reset_height ();
 785                 }
 786         }
 787
 788         present ();
 789 }
 790
 791 void
 792 Editor::instant_save ()
 793 {
 794         if (!constructed || !ARDOUR_UI::instance()->session_loaded) {
 795                 return;
 796         }
 797
 798         if (session) {
 799                 session->add_instant_xml(get_state());
 800         } else {
 801                 Config->add_instant_xml(get_state());
 802         }
 803 }
 804
 805 void
 806 Editor::edit_point_clock_changed()
 807 {
 808         if (_dragging_edit_point) {
 809                 return;
 810         }
 811
 812         if (selection->markers.empty()) {
 813                 return;
 814         }
 815
 816         bool ignored;
 817         Location* loc = find_location_from_marker (selection->markers.front(), ignored);
 818
 819         if (!loc) {
 820                 return;
 821         }
 822
 823         loc->move_to (edit_point_clock.current_time());
 824 }
 825
 826 void
 827 Editor::zoom_adjustment_changed ()
 828 {
 829         if (session == 0) {
 830                 return;
 831         }
 832
 833         double fpu = zoom_range_clock.current_duration() / _canvas_width;
 834
 835         if (fpu < 1.0) {
 836                 fpu = 1.0;
 837                 zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
 838         } else if (fpu > session->current_end_frame() / _canvas_width) {
 839                 fpu = session->current_end_frame() / _canvas_width;
 840                 zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
 841         }
 842
 843         temporal_zoom (fpu);
 844 }
 845
 846 void
 847 Editor::control_scroll (float fraction)
 848 {
 849         ENSURE_GUI_THREAD(bind (mem_fun (*this, &Editor::control_scroll), fraction));
 850
 851         if (!session) {
 852                 return;
 853         }
 854
 855         double step = fraction * current_page_frames();
 856
 857         /*
 858                 _control_scroll_target is an optional<T>
 859
 860                 it acts like a pointer to an nframes64_t, with
 861                 a operator conversion to boolean to check
 862                 that it has a value could possibly use
 863                 playhead_cursor->current_frame to store the
 864                 value and a boolean in the class to know
 865                 when it's out of date
 866         */
 867
 868         if (!_control_scroll_target) {
 869                 _control_scroll_target = session->transport_frame();
 870                 _dragging_playhead = true;
 871         }
 872
 873         if ((fraction < 0.0f) && (*_control_scroll_target < (nframes64_t) fabs(step))) {
 874                 *_control_scroll_target = 0;
 875         } else if ((fraction > 0.0f) && (max_frames - *_control_scroll_target < step)) {
 876                 *_control_scroll_target = max_frames - (current_page_frames()*2); // allow room for slop in where the PH is on the screen
 877         } else {
 878                 *_control_scroll_target += (nframes64_t) floor (step);
 879         }
 880
 881         /* move visuals, we'll catch up with it later */
 882
 883         playhead_cursor->set_position (*_control_scroll_target);
 884         UpdateAllTransportClocks (*_control_scroll_target);
 885
 886         if (*_control_scroll_target > (current_page_frames() / 2)) {
 887                 /* try to center PH in window */
 888                 reset_x_origin (*_control_scroll_target - (current_page_frames()/2));
 889         } else {
 890                 reset_x_origin (0);
 891         }
 892
 893         /*
 894                 Now we do a timeout to actually bring the session to the right place
 895                 according to the playhead. This is to avoid reading disk buffers on every
 896                 call to control_scroll, which is driven by ScrollTimeline and therefore
 897                 probably by a control surface wheel which can generate lots of events.
 898         */
 899         /* cancel the existing timeout */
 900
 901         control_scroll_connection.disconnect ();
 902
 903         /* add the next timeout */
 904
 905         control_scroll_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::deferred_control_scroll), *_control_scroll_target), 250);
 906 }
 907
 908 bool
 909 Editor::deferred_control_scroll (nframes64_t /*target*/)
 910 {
 911         session->request_locate (*_control_scroll_target, session->transport_rolling());
 912         // reset for next stream
 913         _control_scroll_target = boost::none;
 914         _dragging_playhead = false;
 915         return false;
 916 }
 917
 918 void
 919 Editor::access_action (std::string action_group, std::string action_item)
 920 {
 921         if (!session) {
 922                 return;
 923         }
 924
 925         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::access_action), action_group, action_item));
 926
 927         RefPtr<Action> act;
 928         act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
 929
 930         if (act) {
 931                 act->activate();
 932         }
 933
 934
 935 }
 936
 937 void
 938 Editor::on_realize ()
 939 {
 940         Window::on_realize ();
 941         Realized ();
 942 }
 943
 944 void
 945 Editor::start_scrolling ()
 946 {
 947         scroll_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect
 948                 (mem_fun(*this, &Editor::update_current_screen));
 949
 950 }
 951
 952 void
 953 Editor::stop_scrolling ()
 954 {
 955         scroll_connection.disconnect ();
 956 }
 957
 958 void
 959 Editor::map_position_change (nframes64_t frame)
 960 {
 961         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::map_position_change), frame));
 962
 963         if (session == 0 || !_follow_playhead) {
 964                 return;
 965         }
 966
 967         center_screen (frame);
 968         playhead_cursor->set_position (frame);
 969 }
 970
 971 void
 972 Editor::center_screen (nframes64_t frame)
 973 {
 974         double page = _canvas_width * frames_per_unit;
 975
 976         /* if we're off the page, then scroll.
 977          */
 978
 979         if (frame < leftmost_frame || frame >= leftmost_frame + page) {
 980                 center_screen_internal (frame, page);
 981         }
 982 }
 983
 984 void
 985 Editor::center_screen_internal (nframes64_t frame, float page)
 986 {
 987         page /= 2;
 988
 989         if (frame > page) {
 990                 frame -= (nframes64_t) page;
 991         } else {
 992                 frame = 0;
 993         }
 994
 995         reset_x_origin (frame);
 996 }
 997
 998 void
 999 Editor::handle_new_duration ()
1000 {
1001         if (!session) {
1002                 return;
1003         }
1004
1005         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::handle_new_duration));
1006         nframes64_t new_end = session->current_end_frame() + (nframes64_t) floorf (current_page_frames() * 0.10f);
1007
1008         horizontal_adjustment.set_upper (new_end / frames_per_unit);
1009         horizontal_adjustment.set_page_size (current_page_frames()/frames_per_unit);
1010
1011         if (horizontal_adjustment.get_value() + _canvas_width > horizontal_adjustment.get_upper()) {
1012                 horizontal_adjustment.set_value (horizontal_adjustment.get_upper() - _canvas_width);
1013         }
1014         //cerr << "Editor::handle_new_duration () called ha v:l:u:ps:lcf = " << horizontal_adjustment.get_value() << ":" << horizontal_adjustment.get_lower() << ":" << horizontal_adjustment.get_upper() << ":" << horizontal_adjustment.get_page_size() << ":" << endl;//DEBUG
1015 }
1016
1017 void
1018 Editor::update_title_s (const string & snap_name)
1019 {
1020         ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::update_title_s), snap_name));
1021
1022         update_title ();
1023 }
1024
1025 void
1026 Editor::update_title ()
1027 {
1028         ENSURE_GUI_THREAD (mem_fun(*this, &Editor::update_title));
1029
1030         if (session) {
1031                 bool dirty = session->dirty();
1032
1033                 string session_name;
1034
1035                 if (session->snap_name() != session->name()) {
1036                         session_name = session->snap_name();
1037                 } else {
1038                         session_name = session->name();
1039                 }
1040
1041                 if (dirty) {
1042                         session_name = "*" + session_name;
1043                 }
1044
1045                 WindowTitle title(session_name);
1046                 title += Glib::get_application_name();
1047                 set_title (title.get_string());
1048         }
1049 }
1050
1051 void
1052 Editor::connect_to_session (Session *t)
1053 {
1054         session = t;
1055
1056         compute_fixed_ruler_scale ();
1057
1058         /* there are never any selected regions at startup */
1059
1060         sensitize_the_right_region_actions (false);
1061
1062         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
1063         set_state (*node, Stateful::loading_state_version);
1064
1065         /* catch up with the playhead */
1066
1067         session->request_locate (playhead_cursor->current_frame);
1068
1069         update_title ();
1070
1071         session->GoingAway.connect (mem_fun(*this, &Editor::session_going_away));
1072         session->history().Changed.connect (mem_fun (*this, &Editor::history_changed));
1073
1074         /* These signals can all be emitted by a non-GUI thread. Therefore the
1075            handlers for them must not attempt to directly interact with the GUI,
1076            but use Gtkmm2ext::UI::instance()->call_slot();
1077         */
1078
1079         session_connections.push_back (session->TransportStateChange.connect (mem_fun(*this, &Editor::map_transport_state)));
1080         session_connections.push_back (session->PositionChanged.connect (mem_fun(*this, &Editor::map_position_change)));
1081         session_connections.push_back (session->RouteAdded.connect (mem_fun(*this, &Editor::handle_new_route)));
1082         session_connections.push_back (session->DurationChanged.connect (mem_fun(*this, &Editor::handle_new_duration)));
1083         session_connections.push_back (session->NamedSelectionAdded.connect (mem_fun(*this, &Editor::handle_new_named_selection)));
1084         session_connections.push_back (session->NamedSelectionRemoved.connect (mem_fun(*this, &Editor::handle_new_named_selection)));
1085         session_connections.push_back (session->DirtyChanged.connect (mem_fun(*this, &Editor::update_title)));
1086         session_connections.push_back (session->StateSaved.connect (mem_fun(*this, &Editor::update_title_s)));
1087         session_connections.push_back (session->AskAboutPlaylistDeletion.connect (mem_fun(*this, &Editor::playlist_deletion_dialog)));
1088
1089         session_connections.push_back (session->SMPTEOffsetChanged.connect (mem_fun(*this, &Editor::update_just_smpte)));
1090
1091         session_connections.push_back (session->tempo_map().StateChanged.connect (mem_fun(*this, &Editor::tempo_map_changed)));
1092
1093         session_connections.push_back (session->Located.connect (mem_fun (*this, &Editor::located)));
1094         session_connections.push_back (session->config.ParameterChanged.connect (mem_fun (*this, &Editor::parameter_changed)));
1095
1096         edit_point_clock.set_mode(AudioClock::BBT);
1097         edit_point_clock.set_session (session);
1098         zoom_range_clock.set_session (session);
1099         _playlist_selector->set_session (session);
1100         nudge_clock.set_session (session);
1101         if (Profile->get_sae()) {
1102                 BBT_Time bbt;
1103                 bbt.bars = 0;
1104                 bbt.beats = 0;
1105                 bbt.ticks = 120;
1106                 nframes_t pos = session->tempo_map().bbt_duration_at (0, bbt, 1);
1107                 nudge_clock.set_mode(AudioClock::BBT);
1108                 nudge_clock.set (pos, true, 0, AudioClock::BBT);
1109
1110         } else {
1111                 nudge_clock.set (session->frame_rate() * 5, true, 0, AudioClock::SMPTE); // default of 5 seconds
1112         }
1113
1114         playhead_cursor->canvas_item.show ();
1115
1116         if (rhythm_ferret) {
1117                 rhythm_ferret->set_session (session);
1118         }
1119
1120         if (analysis_window != 0)
1121                 analysis_window->set_session (session);
1122
1123         Location* loc = session->locations()->auto_loop_location();
1124         if (loc == 0) {
1125                 loc = new Location (0, session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
1126                 if (loc->start() == loc->end()) {
1127                         loc->set_end (loc->start() + 1);
1128                 }
1129                 session->locations()->add (loc, false);
1130                 session->set_auto_loop_location (loc);
1131         } else {
1132                 // force name
1133                 loc->set_name (_("Loop"));
1134         }
1135
1136         loc = session->locations()->auto_punch_location();
1137         if (loc == 0) {
1138                 loc = new Location (0, session->current_end_frame(), _("Punch"), (Location::Flags) (Location::IsAutoPunch | Location::IsHidden));
1139                 if (loc->start() == loc->end()) {
1140                         loc->set_end (loc->start() + 1);
1141                 }
1142                 session->locations()->add (loc, false);
1143                 session->set_auto_punch_location (loc);
1144         } else {
1145                 // force name
1146                 loc->set_name (_("Punch"));
1147         }
1148
1149         Config->map_parameters (mem_fun (*this, &Editor::parameter_changed));
1150         session->config.map_parameters (mem_fun (*this, &Editor::parameter_changed));
1151
1152         session->StateSaved.connect (mem_fun(*this, &Editor::session_state_saved));
1153
1154         refresh_location_display ();
1155         session->locations()->added.connect (mem_fun(*this, &Editor::add_new_location));
1156         session->locations()->removed.connect (mem_fun(*this, &Editor::location_gone));
1157         session->locations()->changed.connect (mem_fun(*this, &Editor::refresh_location_display));
1158         session->locations()->StateChanged.connect (mem_fun(*this, &Editor::refresh_location_display_s));
1159         session->locations()->end_location()->changed.connect (mem_fun(*this, &Editor::end_location_changed));
1160
1161         if (sfbrowser) {
1162                 sfbrowser->set_session (session);
1163         }
1164
1165         handle_new_duration ();
1166
1167         redisplay_named_selections ();
1168
1169         restore_ruler_visibility ();
1170         //tempo_map_changed (Change (0));
1171         session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
1172
1173         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1174                 (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
1175         }
1176
1177         start_scrolling ();
1178
1179         switch (snap_type) {
1180         case SnapToRegionStart:
1181         case SnapToRegionEnd:
1182         case SnapToRegionSync:
1183         case SnapToRegionBoundary:
1184                 build_region_boundary_cache ();
1185                 break;
1186
1187         default:
1188                 break;
1189         }
1190
1191         /* register for undo history */
1192         session->register_with_memento_command_factory(_id, this);
1193
1194         _summary->connect_to_session (session);
1195         _group_tabs->connect_to_session (session);
1196         _route_groups->connect_to_session (session);
1197         _regions->connect_to_session (session);
1198         _snapshots->connect_to_session (session);
1199         _routes->connect_to_session (session);
1200
1201         start_updating ();
1202 }
1203
1204 void
1205 Editor::build_cursors ()
1206 {
1207         using namespace Gdk;
1208
1209         Gdk::Color mbg ("#000000" ); /* Black */
1210         Gdk::Color mfg ("#0000ff" ); /* Blue. */
1211
1212         {
1213                 RefPtr<Bitmap> source, mask;
1214                 source = Bitmap::create (mag_bits, mag_width, mag_height);
1215                 mask = Bitmap::create (magmask_bits, mag_width, mag_height);
1216                 zoom_cursor = new Gdk::Cursor (source, mask, mfg, mbg, mag_x_hot, mag_y_hot);
1217         }
1218
1219         Gdk::Color fbg ("#ffffff" );
1220         Gdk::Color ffg  ("#000000" );
1221
1222         {
1223                 RefPtr<Bitmap> source, mask;
1224
1225                 source = Bitmap::create (fader_cursor_bits, fader_cursor_width, fader_cursor_height);
1226                 mask = Bitmap::create (fader_cursor_mask_bits, fader_cursor_width, fader_cursor_height);
1227                 fader_cursor = new Gdk::Cursor (source, mask, ffg, fbg, fader_cursor_x_hot, fader_cursor_y_hot);
1228         }
1229
1230         {
1231                 RefPtr<Bitmap> source, mask;
1232                 source = Bitmap::create (speaker_cursor_bits, speaker_cursor_width, speaker_cursor_height);
1233                 mask = Bitmap::create (speaker_cursor_mask_bits, speaker_cursor_width, speaker_cursor_height);
1234                 speaker_cursor = new Gdk::Cursor (source, mask, ffg, fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
1235         }
1236
1237         {
1238                 RefPtr<Bitmap> bits;
1239                 char pix[4] = { 0, 0, 0, 0 };
1240                 bits = Bitmap::create (pix, 2, 2);
1241                 Gdk::Color c;
1242                 transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
1243         }
1244
1245         {
1246                 RefPtr<Bitmap> bits;
1247                 char pix[4] = { 0, 0, 0, 0 };
1248                 bits = Bitmap::create (pix, 2, 2);
1249                 Gdk::Color c;
1250                 transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
1251         }
1252
1253
1254         grabber_cursor = new Gdk::Cursor (HAND2);
1255
1256         {
1257                 Glib::RefPtr<Gdk::Pixbuf> grabber_edit_point_pixbuf (::get_icon ("grabber_edit_point"));
1258                 grabber_edit_point_cursor = new Gdk::Cursor (Gdk::Display::get_default(), grabber_edit_point_pixbuf, 5, 17);
1259         }
1260
1261         cross_hair_cursor = new Gdk::Cursor (CROSSHAIR);
1262         trimmer_cursor =  new Gdk::Cursor (SB_H_DOUBLE_ARROW);
1263         selector_cursor = new Gdk::Cursor (XTERM);
1264         time_fx_cursor = new Gdk::Cursor (SIZING);
1265         wait_cursor = new Gdk::Cursor  (WATCH);
1266         timebar_cursor = new Gdk::Cursor(LEFT_PTR);
1267         midi_pencil_cursor = new Gdk::Cursor (PENCIL);
1268         midi_select_cursor = new Gdk::Cursor (CENTER_PTR);
1269         midi_resize_cursor = new Gdk::Cursor (SIZING);
1270         midi_erase_cursor = new Gdk::Cursor (DRAPED_BOX);
1271 }
1272
1273 /** Pop up a context menu for when the user clicks on a fade in or fade out */
1274 void
1275 Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
1276 {
1277         using namespace Menu_Helpers;
1278         AudioRegionView* arv = static_cast<AudioRegionView*> (item->get_data ("regionview"));
1279
1280         if (arv == 0) {
1281                 fatal << _("programming error: fade in canvas item has no regionview data pointer!") << endmsg;
1282                 /*NOTREACHED*/
1283         }
1284
1285         MenuList& items (fade_context_menu.items());
1286
1287         items.clear ();
1288
1289         switch (item_type) {
1290         case FadeInItem:
1291         case FadeInHandleItem:
1292                 if (arv->audio_region()->fade_in_active()) {
1293                         items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*this, &Editor::set_fade_in_active), false)));
1294                 } else {
1295                         items.push_back (MenuElem (_("Activate"), bind (mem_fun (*this, &Editor::set_fade_in_active), true)));
1296                 }
1297
1298                 items.push_back (SeparatorElem());
1299
1300                 if (Profile->get_sae()) {
1301                         items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1302                         items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1303                 } else {
1304                         items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1305                         items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1306                         items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogB)));
1307                         items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogA)));
1308                         items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Slow)));
1309                 }
1310
1311                 break;
1312
1313         case FadeOutItem:
1314         case FadeOutHandleItem:
1315                 if (arv->audio_region()->fade_out_active()) {
1316                         items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*this, &Editor::set_fade_out_active), false)));
1317                 } else {
1318                         items.push_back (MenuElem (_("Activate"), bind (mem_fun (*this, &Editor::set_fade_out_active), true)));
1319                 }
1320
1321                 items.push_back (SeparatorElem());
1322
1323                 if (Profile->get_sae()) {
1324                         items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1325                         items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1326                 } else {
1327                         items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1328                         items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1329                         items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogA)));
1330                         items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogB)));
1331                         items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Fast)));
1332                 }
1333
1334                 break;
1335
1336         default:
1337                 fatal << _("programming error: ")
1338                       << X_("non-fade canvas item passed to popup_fade_context_menu()")
1339                       << endmsg;
1340                 /*NOTREACHED*/
1341         }
1342
1343         fade_context_menu.popup (button, time);
1344 }
1345
1346 void
1347 Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, nframes64_t frame)
1348 {
1349         using namespace Menu_Helpers;
1350         Menu* (Editor::*build_menu_function)(nframes64_t);
1351         Menu *menu;
1352
1353         switch (item_type) {
1354         case RegionItem:
1355         case RegionViewName:
1356         case RegionViewNameHighlight:
1357                 if (with_selection) {
1358                         build_menu_function = &Editor::build_track_selection_context_menu;
1359                 } else {
1360                         build_menu_function = &Editor::build_track_region_context_menu;
1361                 }
1362                 break;
1363
1364         case SelectionItem:
1365                 if (with_selection) {
1366                         build_menu_function = &Editor::build_track_selection_context_menu;
1367                 } else {
1368                         build_menu_function = &Editor::build_track_context_menu;
1369                 }
1370                 break;
1371
1372         case CrossfadeViewItem:
1373                 build_menu_function = &Editor::build_track_crossfade_context_menu;
1374                 break;
1375
1376         case StreamItem:
1377                 if (clicked_routeview->get_diskstream()) {
1378                         build_menu_function = &Editor::build_track_context_menu;
1379                 } else {
1380                         build_menu_function = &Editor::build_track_bus_context_menu;
1381                 }
1382                 break;
1383
1384         default:
1385                 /* probably shouldn't happen but if it does, we don't care */
1386                 return;
1387         }
1388
1389         menu = (this->*build_menu_function)(frame);
1390         menu->set_name ("ArdourContextMenu");
1391
1392         /* now handle specific situations */
1393
1394         switch (item_type) {
1395         case RegionItem:
1396         case RegionViewName:
1397         case RegionViewNameHighlight:
1398                 if (!with_selection) {
1399                         if (region_edit_menu_split_item) {
1400                                 if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
1401                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, true);
1402                                 } else {
1403                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
1404                                 }
1405                         }
1406                         /*
1407                         if (region_edit_menu_split_multichannel_item) {
1408                                 if (clicked_regionview && clicked_regionview->region().n_channels() > 1) {
1409                                         // GTK2FIX find the action, change its sensitivity
1410                                         // region_edit_menu_split_multichannel_item->set_sensitive (true);
1411                                 } else {
1412                                         // GTK2FIX see above
1413                                         // region_edit_menu_split_multichannel_item->set_sensitive (false);
1414                                 }
1415                         }*/
1416                 }
1417                 break;
1418
1419         case SelectionItem:
1420                 break;
1421
1422         case CrossfadeViewItem:
1423                 break;
1424
1425         case StreamItem:
1426                 break;
1427
1428         default:
1429                 /* probably shouldn't happen but if it does, we don't care */
1430                 return;
1431         }
1432
1433         if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
1434
1435                 /* Bounce to disk */
1436
1437                 using namespace Menu_Helpers;
1438                 MenuList& edit_items  = menu->items();
1439
1440                 edit_items.push_back (SeparatorElem());
1441
1442                 switch (clicked_routeview->audio_track()->freeze_state()) {
1443                 case AudioTrack::NoFreeze:
1444                         edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
1445                         break;
1446
1447                 case AudioTrack::Frozen:
1448                         edit_items.push_back (MenuElem (_("Unfreeze"), mem_fun(*this, &Editor::unfreeze_route)));
1449                         break;
1450
1451                 case AudioTrack::UnFrozen:
1452                         edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
1453                         break;
1454                 }
1455
1456         }
1457
1458         if (item_type == StreamItem && clicked_routeview) {
1459                 clicked_routeview->build_underlay_menu(menu);
1460         }
1461
1462         menu->popup (button, time);
1463 }
1464
1465 Menu*
1466 Editor::build_track_context_menu (nframes64_t)
1467 {
1468         using namespace Menu_Helpers;
1469
1470         MenuList& edit_items = track_context_menu.items();
1471         edit_items.clear();
1472
1473         add_dstream_context_items (edit_items);
1474         return &track_context_menu;
1475 }
1476
1477 Menu*
1478 Editor::build_track_bus_context_menu (nframes64_t)
1479 {
1480         using namespace Menu_Helpers;
1481
1482         MenuList& edit_items = track_context_menu.items();
1483         edit_items.clear();
1484
1485         add_bus_context_items (edit_items);
1486         return &track_context_menu;
1487 }
1488
1489 Menu*
1490 Editor::build_track_region_context_menu (nframes64_t frame)
1491 {
1492         using namespace Menu_Helpers;
1493         MenuList& edit_items  = track_region_context_menu.items();
1494         edit_items.clear();
1495
1496         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
1497
1498         if (rtv) {
1499                 boost::shared_ptr<Diskstream> ds;
1500                 boost::shared_ptr<Playlist> pl;
1501
1502                 if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
1503                         Playlist::RegionList* regions = pl->regions_at ((nframes64_t) floor ( (double)frame * ds->speed()));
1504
1505                         if (selection->regions.size() > 1) {
1506                                 // there's already a multiple selection: just add a
1507                                 // single region context menu that will act on all
1508                                 // selected regions
1509                                 boost::shared_ptr<Region> dummy_region; // = NULL
1510                                 add_region_context_items (rtv->view(), dummy_region, edit_items);
1511                         } else {
1512                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
1513                                         add_region_context_items (rtv->view(), (*i), edit_items);
1514                                 }
1515                         }
1516
1517                         delete regions;
1518                 }
1519         }
1520
1521         add_dstream_context_items (edit_items);
1522
1523         return &track_region_context_menu;
1524 }
1525
1526 Menu*
1527 Editor::build_track_crossfade_context_menu (nframes64_t frame)
1528 {
1529         using namespace Menu_Helpers;
1530         MenuList& edit_items  = track_crossfade_context_menu.items();
1531         edit_items.clear ();
1532
1533         AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_axisview);
1534
1535         if (atv) {
1536                 boost::shared_ptr<Diskstream> ds;
1537                 boost::shared_ptr<Playlist> pl;
1538                 boost::shared_ptr<AudioPlaylist> apl;
1539
1540                 if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()) != 0) && ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) != 0)) {
1541
1542                         Playlist::RegionList* regions = pl->regions_at (frame);
1543                         AudioPlaylist::Crossfades xfades;
1544
1545                         apl->crossfades_at (frame, xfades);
1546
1547                         bool many = xfades.size() > 1;
1548
1549                         for (AudioPlaylist::Crossfades::iterator i = xfades.begin(); i != xfades.end(); ++i) {
1550                                 add_crossfade_context_items (atv->audio_view(), (*i), edit_items, many);
1551                         }
1552
1553                         if (selection->regions.size() > 1) {
1554                                 // there's already a multiple selection: just add a
1555                                 // single region context menu that will act on all
1556                                 // selected regions
1557                                 boost::shared_ptr<Region> dummy_region; // = NULL
1558                                 add_region_context_items (atv->audio_view(), dummy_region, edit_items);
1559                         } else {
1560                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
1561                                         add_region_context_items (atv->audio_view(), (*i), edit_items);
1562                                 }
1563                         }
1564                         delete regions;
1565                 }
1566         }
1567
1568         add_dstream_context_items (edit_items);
1569
1570         return &track_crossfade_context_menu;
1571 }
1572
1573 void
1574 Editor::analyze_region_selection()
1575 {
1576         if (analysis_window == 0) {
1577                 analysis_window = new AnalysisWindow();
1578
1579                 if (session != 0)
1580                         analysis_window->set_session(session);
1581
1582                 analysis_window->show_all();
1583         }
1584
1585         analysis_window->set_regionmode();
1586         analysis_window->analyze();
1587
1588         analysis_window->present();
1589 }
1590
1591 void
1592 Editor::analyze_range_selection()
1593 {
1594         if (analysis_window == 0) {
1595                 analysis_window = new AnalysisWindow();
1596
1597                 if (session != 0)
1598                         analysis_window->set_session(session);
1599
1600                 analysis_window->show_all();
1601         }
1602
1603         analysis_window->set_rangemode();
1604         analysis_window->analyze();
1605
1606         analysis_window->present();
1607 }
1608
1609 Menu*
1610 Editor::build_track_selection_context_menu (nframes64_t)
1611 {
1612         using namespace Menu_Helpers;
1613         MenuList& edit_items  = track_selection_context_menu.items();
1614         edit_items.clear ();
1615
1616         add_selection_context_items (edit_items);
1617         // edit_items.push_back (SeparatorElem());
1618         // add_dstream_context_items (edit_items);
1619
1620         return &track_selection_context_menu;
1621 }
1622
1623 /** Add context menu items relevant to crossfades.
1624  * @param edit_items List to add the items to.
1625  */
1626 void
1627 Editor::add_crossfade_context_items (AudioStreamView* /*view*/, boost::shared_ptr<Crossfade> xfade, Menu_Helpers::MenuList& edit_items, bool many)
1628 {
1629         using namespace Menu_Helpers;
1630         Menu     *xfade_menu = manage (new Menu);
1631         MenuList& items       = xfade_menu->items();
1632         xfade_menu->set_name ("ArdourContextMenu");
1633         string str;
1634
1635         if (xfade->active()) {
1636                 str = _("Mute");
1637         } else {
1638                 str = _("Unmute");
1639         }
1640
1641         items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::toggle_xfade_active), boost::weak_ptr<Crossfade> (xfade))));
1642         items.push_back (MenuElem (_("Edit"), bind (mem_fun(*this, &Editor::edit_xfade), boost::weak_ptr<Crossfade> (xfade))));
1643
1644         if (xfade->can_follow_overlap()) {
1645
1646                 if (xfade->following_overlap()) {
1647                         str = _("Convert to short");
1648                 } else {
1649                         str = _("Convert to full");
1650                 }
1651
1652                 items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::toggle_xfade_length), xfade)));
1653         }
1654
1655         if (many) {
1656                 str = xfade->out()->name();
1657                 str += "->";
1658                 str += xfade->in()->name();
1659         } else {
1660                 str = _("Crossfade");
1661         }
1662
1663         edit_items.push_back (MenuElem (str, *xfade_menu));
1664         edit_items.push_back (SeparatorElem());
1665 }
1666
1667 void
1668 Editor::xfade_edit_left_region ()
1669 {
1670         if (clicked_crossfadeview) {
1671                 clicked_crossfadeview->left_view.show_region_editor ();
1672         }
1673 }
1674
1675 void
1676 Editor::xfade_edit_right_region ()
1677 {
1678         if (clicked_crossfadeview) {
1679                 clicked_crossfadeview->right_view.show_region_editor ();
1680         }
1681 }
1682
1683 void
1684 Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> region, Menu_Helpers::MenuList& edit_items)
1685 {
1686         using namespace Menu_Helpers;
1687         Gtk::MenuItem* foo_item;
1688         Menu     *region_menu = manage (new Menu);
1689         MenuList& items       = region_menu->items();
1690         region_menu->set_name ("ArdourContextMenu");
1691
1692         boost::shared_ptr<AudioRegion> ar;
1693         boost::shared_ptr<MidiRegion>  mr;
1694
1695         if (region) {
1696                 ar = boost::dynamic_pointer_cast<AudioRegion> (region);
1697                 mr = boost::dynamic_pointer_cast<MidiRegion> (region);
1698
1699                 /* when this particular menu pops up, make the relevant region
1700                    become selected.
1701                 */
1702
1703                 region_menu->signal_map_event().connect (
1704                         bind (mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, boost::weak_ptr<Region>(region)));
1705
1706                 items.push_back (MenuElem (_("Rename"), mem_fun(*this, &Editor::rename_region)));
1707                 if (mr && internal_editing()) {
1708                         items.push_back (MenuElem (_("List editor..."), mem_fun(*this, &Editor::show_midi_list_editor)));
1709                 } else {
1710                         items.push_back (MenuElem (_("Region editor"), mem_fun(*this, &Editor::edit_region)));
1711                 }
1712         }
1713
1714         items.push_back (MenuElem (_("Raise to top layer"), mem_fun(*this, &Editor::raise_region_to_top)));
1715         items.push_back (MenuElem (_("Lower to bottom layer"), mem_fun  (*this, &Editor::lower_region_to_bottom)));
1716         items.push_back (SeparatorElem());
1717         items.push_back (MenuElem (_("Define sync point"), mem_fun(*this, &Editor::set_region_sync_from_edit_point)));
1718         if (_edit_point == EditAtMouse) {
1719                 items.back ().set_sensitive (false);
1720         }
1721         items.push_back (MenuElem (_("Remove sync point"), mem_fun(*this, &Editor::remove_region_sync)));
1722         items.push_back (SeparatorElem());
1723
1724         items.push_back (MenuElem (_("Audition"), mem_fun(*this, &Editor::play_selected_region)));
1725         items.push_back (MenuElem (_("Export"), mem_fun(*this, &Editor::export_region)));
1726         items.push_back (MenuElem (_("Bounce"), mem_fun(*this, &Editor::bounce_region_selection)));
1727
1728         if (ar) {
1729                 items.push_back (MenuElem (_("Spectral Analysis"), mem_fun(*this, &Editor::analyze_region_selection)));
1730         }
1731
1732         items.push_back (SeparatorElem());
1733
1734         sigc::connection fooc;
1735         boost::shared_ptr<Region> region_to_check;
1736
1737         if (region) {
1738                 region_to_check = region;
1739         } else {
1740                 region_to_check = selection->regions.front()->region();
1741         }
1742
1743         items.push_back (CheckMenuElem (_("Lock")));
1744         CheckMenuItem* region_lock_item = static_cast<CheckMenuItem*>(&items.back());
1745         if (region_to_check->locked()) {
1746                 region_lock_item->set_active();
1747         }
1748         region_lock_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_region_lock));
1749
1750         items.push_back (CheckMenuElem (_("Glue to Bars&Beats")));
1751         CheckMenuItem* bbt_glue_item = static_cast<CheckMenuItem*>(&items.back());
1752
1753         switch (region_to_check->positional_lock_style()) {
1754         case Region::MusicTime:
1755                 bbt_glue_item->set_active (true);
1756                 break;
1757         default:
1758                 bbt_glue_item->set_active (false);
1759                 break;
1760         }
1761
1762         bbt_glue_item->signal_activate().connect (bind (mem_fun (*this, &Editor::set_region_lock_style), Region::MusicTime));
1763
1764         items.push_back (CheckMenuElem (_("Mute")));
1765         CheckMenuItem* region_mute_item = static_cast<CheckMenuItem*>(&items.back());
1766         fooc = region_mute_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_region_mute));
1767         if (region_to_check->muted()) {
1768                 fooc.block (true);
1769                 region_mute_item->set_active();
1770                 fooc.block (false);
1771         }
1772
1773         if (!Profile->get_sae()) {
1774                 items.push_back (CheckMenuElem (_("Opaque")));
1775                 CheckMenuItem* region_opaque_item = static_cast<CheckMenuItem*>(&items.back());
1776                 fooc = region_opaque_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_region_opaque));
1777                 if (region_to_check->opaque()) {
1778                         fooc.block (true);
1779                         region_opaque_item->set_active();
1780                         fooc.block (false);
1781                 }
1782         }
1783
1784         items.push_back (CheckMenuElem (_("Original position"), mem_fun(*this, &Editor::naturalize)));
1785         if (region_to_check->at_natural_position()) {
1786                 items.back().set_sensitive (false);
1787         }
1788
1789         items.push_back (SeparatorElem());
1790
1791         if (ar) {
1792
1793                 RegionView* rv = sv->find_view (ar);
1794                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(rv);
1795
1796                 if (!Profile->get_sae()) {
1797                         items.push_back (MenuElem (_("Reset Envelope"), mem_fun(*this, &Editor::reset_region_gain_envelopes)));
1798
1799                         items.push_back (CheckMenuElem (_("Envelope Visible")));
1800                         CheckMenuItem* region_envelope_visible_item = static_cast<CheckMenuItem*> (&items.back());
1801                         fooc = region_envelope_visible_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_gain_envelope_visibility));
1802                         if (arv->envelope_visible()) {
1803                                 fooc.block (true);
1804                                 region_envelope_visible_item->set_active (true);
1805                                 fooc.block (false);
1806                         }
1807
1808                         items.push_back (CheckMenuElem (_("Envelope Active")));
1809                         CheckMenuItem* region_envelope_active_item = static_cast<CheckMenuItem*> (&items.back());
1810                         fooc = region_envelope_active_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_gain_envelope_active));
1811
1812                         if (ar->envelope_active()) {
1813                                 fooc.block (true);
1814                                 region_envelope_active_item->set_active (true);
1815                                 fooc.block (false);
1816                         }
1817
1818                         items.push_back (SeparatorElem());
1819                 }
1820
1821                 items.push_back (MenuElem (_("Normalize"), mem_fun(*this, &Editor::normalize_region)));
1822                 if (ar->scale_amplitude() != 1) {
1823                         items.push_back (MenuElem (_("Reset Gain"), mem_fun(*this, &Editor::reset_region_scale_amplitude)));
1824                 }
1825
1826         } else if (mr) {
1827                 items.push_back (MenuElem (_("Quantize"), mem_fun(*this, &Editor::quantize_region)));
1828                 items.push_back (SeparatorElem());
1829         }
1830
1831         items.push_back (MenuElem (_("Strip Silence..."), mem_fun (*this, &Editor::strip_region_silence)));
1832         items.push_back (MenuElem (_("Reverse"), mem_fun(*this, &Editor::reverse_region)));
1833         items.push_back (SeparatorElem());
1834
1835         /* range related stuff */
1836
1837         items.push_back (MenuElem (_("Add Single Range"), mem_fun (*this, &Editor::add_location_from_audio_region)));
1838         items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_locations_from_audio_region)));
1839         if (selection->regions.size() < 2) {
1840                 items.back().set_sensitive (false);
1841         }
1842
1843         items.push_back (MenuElem (_("Set Range Selection"), mem_fun (*this, &Editor::set_selection_from_region)));
1844         items.push_back (SeparatorElem());
1845
1846         /* Nudge region */
1847
1848         Menu *nudge_menu = manage (new Menu());
1849         MenuList& nudge_items = nudge_menu->items();
1850         nudge_menu->set_name ("ArdourContextMenu");
1851
1852         nudge_items.push_back (MenuElem (_("Nudge fwd"), (bind (mem_fun(*this, &Editor::nudge_forward), false, false))));
1853         nudge_items.push_back (MenuElem (_("Nudge bwd"), (bind (mem_fun(*this, &Editor::nudge_backward), false, false))));
1854         nudge_items.push_back (MenuElem (_("Nudge fwd by capture offset"), (mem_fun(*this, &Editor::nudge_forward_capture_offset))));
1855         nudge_items.push_back (MenuElem (_("Nudge bwd by capture offset"), (mem_fun(*this, &Editor::nudge_backward_capture_offset))));
1856
1857         items.push_back (MenuElem (_("Nudge"), *nudge_menu));
1858         items.push_back (SeparatorElem());
1859
1860         Menu *trim_menu = manage (new Menu);
1861         MenuList& trim_items = trim_menu->items();
1862         trim_menu->set_name ("ArdourContextMenu");
1863
1864         trim_items.push_back (MenuElem (_("Start to edit point"), mem_fun(*this, &Editor::trim_region_from_edit_point)));
1865         foo_item = &trim_items.back();
1866         if (_edit_point == EditAtMouse) {
1867                 foo_item->set_sensitive (false);
1868         }
1869         trim_items.push_back (MenuElem (_("Edit point to end"), mem_fun(*this, &Editor::trim_region_to_edit_point)));
1870         foo_item = &trim_items.back();
1871         if (_edit_point == EditAtMouse) {
1872                 foo_item->set_sensitive (false);
1873         }
1874         trim_items.push_back (MenuElem (_("Trim To Loop"), mem_fun(*this, &Editor::trim_region_to_loop)));
1875         trim_items.push_back (MenuElem (_("Trim To Punch"), mem_fun(*this, &Editor::trim_region_to_punch)));
1876
1877         items.push_back (MenuElem (_("Trim"), *trim_menu));
1878         items.push_back (SeparatorElem());
1879
1880         items.push_back (MenuElem (_("Split"), (mem_fun(*this, &Editor::split))));
1881         region_edit_menu_split_item = &items.back();
1882
1883         if (_edit_point == EditAtMouse) {
1884                 region_edit_menu_split_item->set_sensitive (false);
1885         }
1886
1887         items.push_back (MenuElem (_("Make mono regions"), (mem_fun(*this, &Editor::split_multichannel_region))));
1888         region_edit_menu_split_multichannel_item = &items.back();
1889
1890         items.push_back (MenuElem (_("Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), false))));
1891         items.push_back (MenuElem (_("Multi-Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), true))));
1892         items.push_back (MenuElem (_("Fill Track"), (mem_fun(*this, &Editor::region_fill_track))));
1893         items.push_back (SeparatorElem());
1894         items.push_back (MenuElem (_("Remove"), mem_fun(*this, &Editor::remove_selected_regions)));
1895
1896         /* OK, stick the region submenu at the top of the list, and then add
1897            the standard items.
1898         */
1899
1900         /* we have to hack up the region name because "_" has a special
1901            meaning for menu titles.
1902         */
1903
1904         string::size_type pos = 0;
1905         string menu_item_name = (region) ? region->name() : _("Selected regions");
1906
1907         while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
1908                 menu_item_name.replace (pos, 1, "__");
1909                 pos += 2;
1910         }
1911
1912         edit_items.push_back (MenuElem (menu_item_name, *region_menu));
1913         edit_items.push_back (SeparatorElem());
1914 }
1915
1916 /** Add context menu items relevant to selection ranges.
1917  * @param edit_items List to add the items to.
1918  */
1919 void
1920 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
1921 {
1922         using namespace Menu_Helpers;
1923
1924         edit_items.push_back (MenuElem (_("Play Range"), mem_fun(*this, &Editor::play_selection)));
1925         edit_items.push_back (MenuElem (_("Loop Range"), bind (mem_fun(*this, &Editor::set_loop_from_selection), true)));
1926
1927         edit_items.push_back (SeparatorElem());
1928         edit_items.push_back (MenuElem (_("Spectral Analysis"), mem_fun(*this, &Editor::analyze_range_selection)));
1929
1930         if (!selection->regions.empty()) {
1931                 edit_items.push_back (SeparatorElem());
1932                 edit_items.push_back (MenuElem (_("Extend Range to End of Region"), bind (mem_fun(*this, &Editor::extend_selection_to_end_of_region), false)));
1933                 edit_items.push_back (MenuElem (_("Extend Range to Start of Region"), bind (mem_fun(*this, &Editor::extend_selection_to_start_of_region), false)));
1934         }
1935
1936         edit_items.push_back (SeparatorElem());
1937         edit_items.push_back (MenuElem (_("Silence Range"), mem_fun(*this, &Editor::separate_region_from_selection)));
1938         edit_items.push_back (MenuElem (_("Convert to Region in Region List"), mem_fun(*this, &Editor::new_region_from_selection)));
1939
1940         edit_items.push_back (SeparatorElem());
1941         edit_items.push_back (MenuElem (_("Select All in Range"), mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
1942
1943         edit_items.push_back (SeparatorElem());
1944         edit_items.push_back (MenuElem (_("Set Loop from Range"), bind (mem_fun(*this, &Editor::set_loop_from_selection), false)));
1945         edit_items.push_back (MenuElem (_("Set Punch from Range"), mem_fun(*this, &Editor::set_punch_from_selection)));
1946
1947         edit_items.push_back (SeparatorElem());
1948         edit_items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_location_from_selection)));
1949
1950         edit_items.push_back (SeparatorElem());
1951         edit_items.push_back (MenuElem (_("Crop Region to Range"), mem_fun(*this, &Editor::crop_region_to_selection)));
1952         edit_items.push_back (MenuElem (_("Fill Range with Region"), mem_fun(*this, &Editor::region_fill_selection)));
1953         edit_items.push_back (MenuElem (_("Duplicate Range"), bind (mem_fun(*this, &Editor::duplicate_dialog), false)));
1954         edit_items.push_back (MenuElem (_("Create Chunk from Range"), mem_fun(*this, &Editor::create_named_selection)));
1955
1956         edit_items.push_back (SeparatorElem());
1957         edit_items.push_back (MenuElem (_("Consolidate Range"), bind (mem_fun(*this, &Editor::bounce_range_selection), true, false)));
1958         edit_items.push_back (MenuElem (_("Consolidate Range With Processing"), bind (mem_fun(*this, &Editor::bounce_range_selection), true, true)));
1959         edit_items.push_back (MenuElem (_("Bounce Range to Region List"), bind (mem_fun(*this, &Editor::bounce_range_selection), false, false)));
1960         edit_items.push_back (MenuElem (_("Bounce Range to Region List With Processing"), bind (mem_fun(*this, &Editor::bounce_range_selection), false, true)));
1961         edit_items.push_back (MenuElem (_("Export Range"), mem_fun(*this, &Editor::export_range)));
1962 }
1963
1964
1965 void
1966 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
1967 {
1968         using namespace Menu_Helpers;
1969
1970         /* Playback */
1971
1972         Menu *play_menu = manage (new Menu);
1973         MenuList& play_items = play_menu->items();
1974         play_menu->set_name ("ArdourContextMenu");
1975
1976         play_items.push_back (MenuElem (_("Play from edit point"), mem_fun(*this, &Editor::play_from_edit_point)));
1977         play_items.push_back (MenuElem (_("Play from start"), mem_fun(*this, &Editor::play_from_start)));
1978         play_items.push_back (MenuElem (_("Play region"), mem_fun(*this, &Editor::play_selected_region)));
1979         play_items.push_back (SeparatorElem());
1980         play_items.push_back (MenuElem (_("Loop Region"), mem_fun(*this, &Editor::loop_selected_region)));
1981
1982         edit_items.push_back (MenuElem (_("Play"), *play_menu));
1983
1984         /* Selection */
1985
1986         Menu *select_menu = manage (new Menu);
1987         MenuList& select_items = select_menu->items();
1988         select_menu->set_name ("ArdourContextMenu");
1989
1990         select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
1991         select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
1992         select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
1993         select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
1994         select_items.push_back (SeparatorElem());
1995         select_items.push_back (MenuElem (_("Set range to loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
1996         select_items.push_back (MenuElem (_("Set range to punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
1997         select_items.push_back (SeparatorElem());
1998         select_items.push_back (MenuElem (_("Select All After Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
1999         select_items.push_back (MenuElem (_("Select All Before Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
2000         select_items.push_back (MenuElem (_("Select All After Playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2001         select_items.push_back (MenuElem (_("Select All Before Playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2002         select_items.push_back (MenuElem (_("Select All Between Playhead & Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_between), false)));
2003         select_items.push_back (MenuElem (_("Select All Within Playhead & Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_between), true)));
2004         select_items.push_back (MenuElem (_("Select Range Between Playhead & Edit Point"), mem_fun(*this, &Editor::select_range_between)));
2005
2006         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2007
2008         /* Cut-n-Paste */
2009
2010         Menu *cutnpaste_menu = manage (new Menu);
2011         MenuList& cutnpaste_items = cutnpaste_menu->items();
2012         cutnpaste_menu->set_name ("ArdourContextMenu");
2013
2014         cutnpaste_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
2015         cutnpaste_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
2016         cutnpaste_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
2017
2018         cutnpaste_items.push_back (SeparatorElem());
2019
2020         cutnpaste_items.push_back (MenuElem (_("Align"), bind (mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
2021         cutnpaste_items.push_back (MenuElem (_("Align Relative"), bind (mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
2022
2023         cutnpaste_items.push_back (SeparatorElem());
2024
2025         cutnpaste_items.push_back (MenuElem (_("Insert chunk"), bind (mem_fun(*this, &Editor::paste_named_selection), 1.0f)));
2026
2027         edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
2028
2029         /* Adding new material */
2030
2031         edit_items.push_back (SeparatorElem());
2032         edit_items.push_back (MenuElem (_("Insert Selected Region"), bind (mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
2033         edit_items.push_back (MenuElem (_("Insert Existing Media"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
2034
2035         /* Nudge track */
2036
2037         Menu *nudge_menu = manage (new Menu());
2038         MenuList& nudge_items = nudge_menu->items();
2039         nudge_menu->set_name ("ArdourContextMenu");
2040
2041         edit_items.push_back (SeparatorElem());
2042         nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, true))));
2043         nudge_items.push_back (MenuElem (_("Nudge track after edit point fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, true))));
2044         nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, false))));
2045         nudge_items.push_back (MenuElem (_("Nudge track after edit point bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, false))));
2046
2047         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2048 }
2049
2050 void
2051 Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
2052 {
2053         using namespace Menu_Helpers;
2054
2055         /* Playback */
2056
2057         Menu *play_menu = manage (new Menu);
2058         MenuList& play_items = play_menu->items();
2059         play_menu->set_name ("ArdourContextMenu");
2060
2061         play_items.push_back (MenuElem (_("Play from edit point"), mem_fun(*this, &Editor::play_from_edit_point)));
2062         play_items.push_back (MenuElem (_("Play from start"), mem_fun(*this, &Editor::play_from_start)));
2063         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2064
2065         /* Selection */
2066
2067         Menu *select_menu = manage (new Menu);
2068         MenuList& select_items = select_menu->items();
2069         select_menu->set_name ("ArdourContextMenu");
2070
2071         select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2072         select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
2073         select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
2074         select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
2075         select_items.push_back (SeparatorElem());
2076         select_items.push_back (MenuElem (_("Select all after edit point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
2077         select_items.push_back (MenuElem (_("Select all before edit point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
2078         select_items.push_back (MenuElem (_("Select all after playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2079         select_items.push_back (MenuElem (_("Select all before playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2080
2081         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2082
2083         /* Cut-n-Paste */
2084
2085         Menu *cutnpaste_menu = manage (new Menu);
2086         MenuList& cutnpaste_items = cutnpaste_menu->items();
2087         cutnpaste_menu->set_name ("ArdourContextMenu");
2088
2089         cutnpaste_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
2090         cutnpaste_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
2091         cutnpaste_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
2092
2093         Menu *nudge_menu = manage (new Menu());
2094         MenuList& nudge_items = nudge_menu->items();
2095         nudge_menu->set_name ("ArdourContextMenu");
2096
2097         edit_items.push_back (SeparatorElem());
2098         nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, true))));
2099         nudge_items.push_back (MenuElem (_("Nudge track after edit point fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, true))));
2100         nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, false))));
2101         nudge_items.push_back (MenuElem (_("Nudge track after edit point bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, false))));
2102
2103         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2104 }
2105
2106 void
2107 Editor::set_snap_to (SnapType st)
2108 {
2109         unsigned int snap_ind = (unsigned int)st;
2110
2111         snap_type = st;
2112
2113         if (snap_ind > snap_type_strings.size() - 1) {
2114                 snap_ind = 0;
2115                 snap_type = (SnapType)snap_ind;
2116         }
2117
2118         string str = snap_type_strings[snap_ind];
2119
2120         if (str != snap_type_selector.get_active_text()) {
2121                 snap_type_selector.set_active_text (str);
2122         }
2123
2124         instant_save ();
2125
2126         switch (snap_type) {
2127         case SnapToAThirtysecondBeat:
2128         case SnapToASixteenthBeat:
2129         case SnapToAEighthBeat:
2130         case SnapToAQuarterBeat:
2131         case SnapToAThirdBeat:
2132                 compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
2133                 update_tempo_based_rulers ();
2134                 break;
2135
2136         case SnapToRegionStart:
2137         case SnapToRegionEnd:
2138         case SnapToRegionSync:
2139         case SnapToRegionBoundary:
2140                 build_region_boundary_cache ();
2141                 break;
2142
2143         default:
2144                 /* relax */
2145                 break;
2146     }
2147 }
2148
2149 void
2150 Editor::set_snap_mode (SnapMode mode)
2151 {
2152         snap_mode = mode;
2153         string str = snap_mode_strings[(int)mode];
2154
2155         if (str != snap_mode_selector.get_active_text ()) {
2156                 snap_mode_selector.set_active_text (str);
2157         }
2158
2159         instant_save ();
2160 }
2161 void
2162 Editor::set_edit_point_preference (EditPoint ep, bool force)
2163 {
2164         bool changed = (_edit_point != ep);
2165
2166         _edit_point = ep;
2167         string str = edit_point_strings[(int)ep];
2168
2169         if (str != edit_point_selector.get_active_text ()) {
2170                 edit_point_selector.set_active_text (str);
2171         }
2172
2173         set_canvas_cursor ();
2174
2175         if (!force && !changed) {
2176                 return;
2177         }
2178
2179         switch (zoom_focus) {
2180         case ZoomFocusMouse:
2181         case ZoomFocusPlayhead:
2182         case ZoomFocusEdit:
2183                 switch (_edit_point) {
2184                 case EditAtMouse:
2185                         set_zoom_focus (ZoomFocusMouse);
2186                         break;
2187                 case EditAtPlayhead:
2188                         set_zoom_focus (ZoomFocusPlayhead);
2189                         break;
2190                 case EditAtSelectedMarker:
2191                         set_zoom_focus (ZoomFocusEdit);
2192                         break;
2193                 }
2194                 break;
2195         default:
2196                 break;
2197         }
2198
2199         const char* action=NULL;
2200
2201         switch (_edit_point) {
2202         case EditAtPlayhead:
2203                 action = "edit-at-playhead";
2204                 break;
2205         case EditAtSelectedMarker:
2206                 action = "edit-at-marker";
2207                 break;
2208         case EditAtMouse:
2209                 action = "edit-at-mouse";
2210                 break;
2211         }
2212
2213         Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
2214         if (act) {
2215                 Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
2216         }
2217
2218         nframes64_t foo;
2219         bool in_track_canvas;
2220
2221         if (!mouse_frame (foo, in_track_canvas)) {
2222                 in_track_canvas = false;
2223         }
2224
2225         reset_canvas_action_sensitivity (in_track_canvas);
2226
2227         instant_save ();
2228 }
2229
2230 int
2231 Editor::set_state (const XMLNode& node, int version)
2232 {
2233         const XMLProperty* prop;
2234         XMLNode* geometry;
2235         int x, y, xoff, yoff;
2236         Gdk::Geometry g;
2237
2238         if ((prop = node.property ("id")) != 0) {
2239                 _id = prop->value ();
2240         }
2241
2242         g.base_width = default_width;
2243         g.base_height = default_height;
2244         x = 1;
2245         y = 1;
2246         xoff = 0;
2247         yoff = 21;
2248
2249         if ((geometry = find_named_node (node, "geometry")) != 0) {
2250
2251                 XMLProperty* prop;
2252
2253                 if ((prop = geometry->property("x_size")) == 0) {
2254                         prop = geometry->property ("x-size");
2255                 }
2256                 if (prop) {
2257                         g.base_width = atoi(prop->value());
2258                 }
2259                 if ((prop = geometry->property("y_size")) == 0) {
2260                         prop = geometry->property ("y-size");
2261                 }
2262                 if (prop) {
2263                         g.base_height = atoi(prop->value());
2264                 }
2265
2266                 if ((prop = geometry->property ("x_pos")) == 0) {
2267                         prop = geometry->property ("x-pos");
2268                 }
2269                 if (prop) {
2270                         x = atoi (prop->value());
2271
2272                 }
2273                 if ((prop = geometry->property ("y_pos")) == 0) {
2274                         prop = geometry->property ("y-pos");
2275                 }
2276                 if (prop) {
2277                         y = atoi (prop->value());
2278                 }
2279
2280                 if ((prop = geometry->property ("x_off")) == 0) {
2281                         prop = geometry->property ("x-off");
2282                 }
2283                 if (prop) {
2284                         xoff = atoi (prop->value());
2285                 }
2286                 if ((prop = geometry->property ("y_off")) == 0) {
2287                         prop = geometry->property ("y-off");
2288                 }
2289                 if (prop) {
2290                         yoff = atoi (prop->value());
2291                 }
2292         }
2293
2294         set_default_size (g.base_width, g.base_height);
2295         move (x, y);
2296
2297         if (session && (prop = node.property ("playhead"))) {
2298                 nframes64_t pos = atol (prop->value().c_str());
2299                 playhead_cursor->set_position (pos);
2300         } else {
2301                 playhead_cursor->set_position (0);
2302
2303                 /* reset_x_origin() doesn't work right here, since the old
2304                    position may be zero already, and it does nothing in such
2305                    circumstances.
2306                 */
2307
2308                 leftmost_frame = 0;
2309                 horizontal_adjustment.set_value (0);
2310         }
2311
2312         if ((prop = node.property ("mixer-width"))) {
2313                 editor_mixer_strip_width = Width (string_2_enum (prop->value(), editor_mixer_strip_width));
2314         }
2315
2316         if ((prop = node.property ("zoom-focus"))) {
2317                 set_zoom_focus ((ZoomFocus) atoi (prop->value()));
2318         }
2319
2320         if ((prop = node.property ("zoom"))) {
2321                 reset_zoom (PBD::atof (prop->value()));
2322         }
2323
2324         if ((prop = node.property ("snap-to"))) {
2325                 set_snap_to ((SnapType) atoi (prop->value()));
2326         }
2327
2328         if ((prop = node.property ("snap-mode"))) {
2329                 set_snap_mode ((SnapMode) atoi (prop->value()));
2330         }
2331
2332         if ((prop = node.property ("mouse-mode"))) {
2333                 MouseMode m = str2mousemode(prop->value());
2334                 mouse_mode = MouseMode ((int) m + 1); /* lie, force mode switch */
2335                 set_mouse_mode (m, true);
2336         } else {
2337                 mouse_mode = MouseGain; /* lie, to force the mode switch */
2338                 set_mouse_mode (MouseObject, true);
2339         }
2340
2341         if ((prop = node.property ("internal-edit"))) {
2342                 bool yn = string_is_affirmative (prop->value());
2343                 RefPtr<Action> act = ActionManager::get_action (X_("MouseMode"), X_("toggle-internal-edit"));
2344                 if (act) {
2345                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2346                         tact->set_active (!yn);
2347                         tact->set_active (yn);
2348                 }
2349         }
2350
2351         if ((prop = node.property ("edit-point"))) {
2352                 set_edit_point_preference ((EditPoint) string_2_enum (prop->value(), _edit_point), true);
2353         }
2354
2355         if ((prop = node.property ("show-waveforms-recording"))) {
2356                 bool yn = string_is_affirmative (prop->value());
2357                 _show_waveforms_recording = !yn;
2358                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformsWhileRecording"));
2359                 if (act) {
2360                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2361                         /* do it twice to force the change */
2362                         tact->set_active (!yn);
2363                         tact->set_active (yn);
2364                 }
2365         }
2366
2367         if ((prop = node.property ("show-measures"))) {
2368                 bool yn = string_is_affirmative (prop->value());
2369                 _show_measures = !yn;
2370                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
2371                 if (act) {
2372                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2373                         /* do it twice to force the change */
2374                         tact->set_active (!yn);
2375                         tact->set_active (yn);
2376                 }
2377         }
2378
2379         if ((prop = node.property ("follow-playhead"))) {
2380                 bool yn = string_is_affirmative (prop->value());
2381                 set_follow_playhead (yn);
2382                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
2383                 if (act) {
2384                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2385                         if (tact->get_active() != yn) {
2386                                 tact->set_active (yn);
2387                         }
2388                 }
2389         }
2390
2391         if ((prop = node.property ("region-list-sort-type"))) {
2392                 _regions->reset_sort_type (str2regionlistsorttype(prop->value()), true);
2393         }
2394
2395         if ((prop = node.property ("xfades-visible"))) {
2396                 bool yn = string_is_affirmative (prop->value());
2397                 _xfade_visibility = !yn;
2398                 // set_xfade_visibility (yn);
2399         }
2400
2401         if ((prop = node.property ("show-editor-mixer"))) {
2402
2403                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2404                 if (act) {
2405
2406                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2407                         bool yn = string_is_affirmative (prop->value());
2408
2409                         /* do it twice to force the change */
2410
2411                         tact->set_active (!yn);
2412                         tact->set_active (yn);
2413                 }
2414         }
2415
2416         if ((prop = node.property ("show-editor-list"))) {
2417
2418                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2419                 assert(act);
2420                 if (act) {
2421
2422                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2423                         bool yn = string_is_affirmative (prop->value());
2424
2425                         /* do it twice to force the change */
2426
2427                         tact->set_active (!yn);
2428                         tact->set_active (yn);
2429                 }
2430         }
2431
2432
2433         return 0;
2434 }
2435
2436 XMLNode&
2437 Editor::get_state ()
2438 {
2439         XMLNode* node = new XMLNode ("Editor");
2440         char buf[32];
2441
2442         _id.print (buf, sizeof (buf));
2443         node->add_property ("id", buf);
2444
2445         if (is_realized()) {
2446                 Glib::RefPtr<Gdk::Window> win = get_window();
2447
2448                 int x, y, xoff, yoff, width, height;
2449                 win->get_root_origin(x, y);
2450                 win->get_position(xoff, yoff);
2451                 win->get_size(width, height);
2452
2453                 XMLNode* geometry = new XMLNode ("geometry");
2454
2455                 snprintf(buf, sizeof(buf), "%d", width);
2456                 geometry->add_property("x-size", string(buf));
2457                 snprintf(buf, sizeof(buf), "%d", height);
2458                 geometry->add_property("y-size", string(buf));
2459                 snprintf(buf, sizeof(buf), "%d", x);
2460                 geometry->add_property("x-pos", string(buf));
2461                 snprintf(buf, sizeof(buf), "%d", y);
2462                 geometry->add_property("y-pos", string(buf));
2463                 snprintf(buf, sizeof(buf), "%d", xoff);
2464                 geometry->add_property("x-off", string(buf));
2465                 snprintf(buf, sizeof(buf), "%d", yoff);
2466                 geometry->add_property("y-off", string(buf));
2467                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
2468                 geometry->add_property("edit_pane_pos", string(buf));
2469
2470                 node->add_child_nocopy (*geometry);
2471         }
2472
2473         maybe_add_mixer_strip_width (*node);
2474
2475         snprintf (buf, sizeof(buf), "%d", (int) zoom_focus);
2476         node->add_property ("zoom-focus", buf);
2477         snprintf (buf, sizeof(buf), "%f", frames_per_unit);
2478         node->add_property ("zoom", buf);
2479         snprintf (buf, sizeof(buf), "%d", (int) snap_type);
2480         node->add_property ("snap-to", buf);
2481         snprintf (buf, sizeof(buf), "%d", (int) snap_mode);
2482         node->add_property ("snap-mode", buf);
2483
2484         node->add_property ("edit-point", enum_2_string (_edit_point));
2485
2486         snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame);
2487         node->add_property ("playhead", buf);
2488
2489         node->add_property ("show-waveforms-recording", _show_waveforms_recording ? "yes" : "no");
2490         node->add_property ("show-measures", _show_measures ? "yes" : "no");
2491         node->add_property ("follow-playhead", _follow_playhead ? "yes" : "no");
2492         node->add_property ("xfades-visible", _xfade_visibility ? "yes" : "no");
2493         node->add_property ("region-list-sort-type", enum2str (_regions->sort_type ()));
2494         node->add_property ("mouse-mode", enum2str(mouse_mode));
2495         node->add_property ("internal-edit", _internal_editing ? "yes" : "no");
2496
2497         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2498         if (act) {
2499                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2500                 node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
2501         }
2502
2503         act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2504         if (act) {
2505                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2506                 node->add_property (X_("show-editor-list"), tact->get_active() ? "yes" : "no");
2507         }
2508
2509         return *node;
2510 }
2511
2512
2513
2514 /** @param y y offset from the top of all trackviews.
2515  *  @return pair: TimeAxisView that y is over, layer index.
2516  *  TimeAxisView may be 0.  Layer index is the layer number if the TimeAxisView is valid and is
2517  *  in stacked region display mode, otherwise 0.
2518  */
2519 std::pair<TimeAxisView *, layer_t>
2520 Editor::trackview_by_y_position (double y)
2521 {
2522         for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
2523
2524                 std::pair<TimeAxisView*, int> const r = (*iter)->covers_y_position (y);
2525                 if (r.first) {
2526                         return r;
2527                 }
2528         }
2529
2530         return std::make_pair ( (TimeAxisView *) 0, 0);
2531 }
2532
2533 /** Snap a position to the grid, if appropriate, taking into account current
2534  *  grid settings and also the state of any snap modifier keys that may be pressed.
2535  *  @param start Position to snap.
2536  *  @param event Event to get current key modifier information from.
2537  */
2538 void
2539 Editor::snap_to_with_modifier (nframes64_t& start, GdkEvent const * event, int32_t direction, bool for_mark)
2540 {
2541         if (!session) {
2542                 return;
2543         }
2544
2545         if (Keyboard::modifier_state_contains (event->button.state, Keyboard::snap_modifier())) {
2546                 if (snap_mode == SnapOff) {
2547                         snap_to_internal (start, direction, for_mark);
2548                 }
2549         } else {
2550                 if (snap_mode != SnapOff) {
2551                         snap_to_internal (start, direction, for_mark);
2552                 }
2553         }
2554 }
2555
2556 void
2557 Editor::snap_to (nframes64_t& start, int32_t direction, bool for_mark)
2558 {
2559         if (!session || snap_mode == SnapOff) {
2560                 return;
2561         }
2562
2563         snap_to_internal (start, direction, for_mark);
2564 }
2565
2566 void
2567 Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
2568 {
2569         Location* before = 0;
2570         Location* after = 0;
2571
2572         const nframes64_t one_second = session->frame_rate();
2573         const nframes64_t one_minute = session->frame_rate() * 60;
2574         const nframes64_t one_smpte_second = (nframes64_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame());
2575         nframes64_t one_smpte_minute = (nframes64_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame() * 60);
2576         nframes64_t presnap = start;
2577
2578         switch (snap_type) {
2579         case SnapToCDFrame:
2580                 if (((direction == 0) && (start % (one_second/75) > (one_second/75) / 2)) || (direction > 0)) {
2581                         start = (nframes64_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
2582                 } else {
2583                         start = (nframes64_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
2584                 }
2585                 break;
2586
2587         case SnapToSMPTEFrame:
2588                 if (((direction == 0) && (fmod((double)start, (double)session->frames_per_smpte_frame()) > (session->frames_per_smpte_frame() / 2))) || (direction > 0)) {
2589                         start = (nframes64_t) (ceil ((double) start / session->frames_per_smpte_frame()) * session->frames_per_smpte_frame());
2590                 } else {
2591                         start = (nframes64_t) (floor ((double) start / session->frames_per_smpte_frame()) *  session->frames_per_smpte_frame());
2592                 }
2593                 break;
2594
2595         case SnapToSMPTESeconds:
2596                 if (session->smpte_offset_negative())
2597                 {
2598                         start += session->smpte_offset ();
2599                 } else {
2600                         start -= session->smpte_offset ();
2601                 }
2602                 if (((direction == 0) && (start % one_smpte_second > one_smpte_second / 2)) || direction > 0) {
2603                         start = (nframes64_t) ceil ((double) start / one_smpte_second) * one_smpte_second;
2604                 } else {
2605                         start = (nframes64_t) floor ((double) start / one_smpte_second) * one_smpte_second;
2606                 }
2607
2608                 if (session->smpte_offset_negative())
2609                 {
2610                         start -= session->smpte_offset ();
2611                 } else {
2612                         start += session->smpte_offset ();
2613                 }
2614                 break;
2615
2616         case SnapToSMPTEMinutes:
2617                 if (session->smpte_offset_negative())
2618                 {
2619                         start += session->smpte_offset ();
2620                 } else {
2621                         start -= session->smpte_offset ();
2622                 }
2623                 if (((direction == 0) && (start % one_smpte_minute > one_smpte_minute / 2)) || direction > 0) {
2624                         start = (nframes64_t) ceil ((double) start / one_smpte_minute) * one_smpte_minute;
2625                 } else {
2626                         start = (nframes64_t) floor ((double) start / one_smpte_minute) * one_smpte_minute;
2627                 }
2628                 if (session->smpte_offset_negative())
2629                 {
2630                         start -= session->smpte_offset ();
2631                 } else {
2632                         start += session->smpte_offset ();
2633                 }
2634                 break;
2635
2636         case SnapToSeconds:
2637                 if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
2638                         start = (nframes64_t) ceil ((double) start / one_second) * one_second;
2639                 } else {
2640                         start = (nframes64_t) floor ((double) start / one_second) * one_second;
2641                 }
2642                 break;
2643
2644         case SnapToMinutes:
2645                 if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
2646                         start = (nframes64_t) ceil ((double) start / one_minute) * one_minute;
2647                 } else {
2648                         start = (nframes64_t) floor ((double) start / one_minute) * one_minute;
2649                 }
2650                 break;
2651
2652         case SnapToBar:
2653                 start = session->tempo_map().round_to_bar (start, direction);
2654                 break;
2655
2656         case SnapToBeat:
2657                 start = session->tempo_map().round_to_beat (start, direction);
2658                 break;
2659
2660         case SnapToAThirtysecondBeat:
2661                 start = session->tempo_map().round_to_beat_subdivision (start, 32, direction);
2662                 break;
2663
2664         case SnapToASixteenthBeat:
2665                 start = session->tempo_map().round_to_beat_subdivision (start, 16, direction);
2666                 break;
2667
2668         case SnapToAEighthBeat:
2669                 start = session->tempo_map().round_to_beat_subdivision (start, 8, direction);
2670                 break;
2671
2672         case SnapToAQuarterBeat:
2673                 start = session->tempo_map().round_to_beat_subdivision (start, 4, direction);
2674                 break;
2675
2676         case SnapToAThirdBeat:
2677                 start = session->tempo_map().round_to_beat_subdivision (start, 3, direction);
2678                 break;
2679
2680         case SnapToMark:
2681                 if (for_mark) {
2682                         return;
2683                 }
2684
2685                 before = session->locations()->first_location_before (start);
2686                 after = session->locations()->first_location_after (start);
2687
2688                 if (direction < 0) {
2689                         if (before) {
2690                                 start = before->start();
2691                         } else {
2692                                 start = 0;
2693                         }
2694                 } else if (direction > 0) {
2695                         if (after) {
2696                                 start = after->start();
2697                         } else {
2698                                 start = session->current_end_frame();
2699                         }
2700                 } else {
2701                         if (before) {
2702                                 if (after) {
2703                                         /* find nearest of the two */
2704                                         if ((start - before->start()) < (after->start() - start)) {
2705                                                 start = before->start();
2706                                         } else {
2707                                                 start = after->start();
2708                                         }
2709                                 } else {
2710                                         start = before->start();
2711                                 }
2712                         } else if (after) {
2713                                 start = after->start();
2714                         } else {
2715                                 /* relax */
2716                         }
2717                 }
2718                 break;
2719
2720         case SnapToRegionStart:
2721         case SnapToRegionEnd:
2722         case SnapToRegionSync:
2723         case SnapToRegionBoundary:
2724                 if (!region_boundary_cache.empty()) {
2725
2726                         vector<nframes64_t>::iterator prev = region_boundary_cache.end ();
2727                         vector<nframes64_t>::iterator next = region_boundary_cache.end ();
2728
2729                         if (direction > 0) {
2730                                 next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2731                         } else {
2732                                 next = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2733                         }
2734
2735                         if (next != region_boundary_cache.begin ()) {
2736                                 prev = next;
2737                                 prev--;
2738                         }
2739
2740                         nframes64_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
2741                         nframes64_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
2742
2743                         if (start > (p + n) / 2) {
2744                                 start = n;
2745                         } else {
2746                                 start = p;
2747                         }
2748                 }
2749                 break;
2750         }
2751
2752         switch (snap_mode) {
2753         case SnapNormal:
2754                 return;
2755
2756         case SnapMagnetic:
2757
2758                 if (presnap > start) {
2759                         if (presnap > (start + unit_to_frame(snap_threshold))) {
2760                                 start = presnap;
2761                         }
2762
2763                 } else if (presnap < start) {
2764                         if (presnap < (start - unit_to_frame(snap_threshold))) {
2765                                 start = presnap;
2766                         }
2767                 }
2768
2769         default:
2770                 /* handled at entry */
2771                 return;
2772
2773         }
2774 }
2775
2776
2777 void
2778 Editor::setup_toolbar ()
2779 {
2780         string pixmap_path;
2781
2782         /* Mode Buttons (tool selection) */
2783
2784         mouse_move_button.set_relief(Gtk::RELIEF_NONE);
2785         mouse_select_button.set_relief(Gtk::RELIEF_NONE);
2786         mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
2787         mouse_zoom_button.set_relief(Gtk::RELIEF_NONE);
2788         mouse_timefx_button.set_relief(Gtk::RELIEF_NONE);
2789         mouse_audition_button.set_relief(Gtk::RELIEF_NONE);
2790         // internal_edit_button.set_relief(Gtk::RELIEF_NONE);
2791
2792         HBox* mode_box = manage(new HBox);
2793         mode_box->set_border_width (2);
2794         mode_box->set_spacing(4);
2795         mouse_mode_button_box.set_spacing(1);
2796         mouse_mode_button_box.pack_start(mouse_move_button, true, true);
2797         if (!Profile->get_sae()) {
2798                 mouse_mode_button_box.pack_start(mouse_select_button, true, true);
2799         }
2800         mouse_mode_button_box.pack_start(mouse_zoom_button, true, true);
2801         if (!Profile->get_sae()) {
2802                 mouse_mode_button_box.pack_start(mouse_gain_button, true, true);
2803         }
2804         mouse_mode_button_box.pack_start(mouse_timefx_button, true, true);
2805         mouse_mode_button_box.pack_start(mouse_audition_button, true, true);
2806         mouse_mode_button_box.pack_start(internal_edit_button, true, true);
2807         mouse_mode_button_box.set_homogeneous(true);
2808
2809         vector<string> edit_mode_strings;
2810         edit_mode_strings.push_back (edit_mode_to_string (Slide));
2811         if (!Profile->get_sae()) {
2812                 edit_mode_strings.push_back (edit_mode_to_string (Splice));
2813         }
2814         edit_mode_strings.push_back (edit_mode_to_string (Lock));
2815
2816         edit_mode_selector.set_name ("EditModeSelector");
2817         set_popdown_strings (edit_mode_selector, edit_mode_strings, true);
2818         edit_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_mode_selection_done));
2819
2820         mode_box->pack_start(edit_mode_selector);
2821         mode_box->pack_start(mouse_mode_button_box);
2822
2823         mouse_mode_tearoff = manage (new TearOff (*mode_box));
2824         mouse_mode_tearoff->set_name ("MouseModeBase");
2825         mouse_mode_tearoff->tearoff_window().signal_key_press_event().connect (bind (sigc::ptr_fun (relay_key_press), &mouse_mode_tearoff->tearoff_window()), false);
2826
2827         if (Profile->get_sae()) {
2828                 mouse_mode_tearoff->set_can_be_torn_off (false);
2829         }
2830
2831         mouse_mode_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2832                                                   &mouse_mode_tearoff->tearoff_window()));
2833         mouse_mode_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2834                                                   &mouse_mode_tearoff->tearoff_window(), 1));
2835         mouse_mode_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2836                                                   &mouse_mode_tearoff->tearoff_window()));
2837         mouse_mode_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2838                                                    &mouse_mode_tearoff->tearoff_window(), 1));
2839
2840         mouse_move_button.set_mode (false);
2841         mouse_select_button.set_mode (false);
2842         mouse_gain_button.set_mode (false);
2843         mouse_zoom_button.set_mode (false);
2844         mouse_timefx_button.set_mode (false);
2845         mouse_audition_button.set_mode (false);
2846
2847         mouse_move_button.set_name ("MouseModeButton");
2848         mouse_select_button.set_name ("MouseModeButton");
2849         mouse_gain_button.set_name ("MouseModeButton");
2850         mouse_zoom_button.set_name ("MouseModeButton");
2851         mouse_timefx_button.set_name ("MouseModeButton");
2852         mouse_audition_button.set_name ("MouseModeButton");
2853
2854         internal_edit_button.set_name ("MouseModeButton");
2855
2856         mouse_move_button.unset_flags (CAN_FOCUS);
2857         mouse_select_button.unset_flags (CAN_FOCUS);
2858         mouse_gain_button.unset_flags (CAN_FOCUS);
2859         mouse_zoom_button.unset_flags (CAN_FOCUS);
2860         mouse_timefx_button.unset_flags (CAN_FOCUS);
2861         mouse_audition_button.unset_flags (CAN_FOCUS);
2862         internal_edit_button.unset_flags (CAN_FOCUS);
2863
2864         /* Zoom */
2865
2866         zoom_box.set_spacing (1);
2867         zoom_box.set_border_width (0);
2868
2869         zoom_in_button.set_name ("EditorTimeButton");
2870         zoom_in_button.set_size_request(-1,16);
2871         zoom_in_button.add (*(manage (new Image (::get_icon("zoom_in")))));
2872         zoom_in_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), false));
2873         ARDOUR_UI::instance()->tooltips().set_tip (zoom_in_button, _("Zoom In"));
2874
2875         zoom_out_button.set_name ("EditorTimeButton");
2876         zoom_out_button.set_size_request(-1,16);
2877         zoom_out_button.add (*(manage (new Image (::get_icon("zoom_out")))));
2878         zoom_out_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), true));
2879         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_button, _("Zoom Out"));
2880
2881         zoom_out_full_button.set_name ("EditorTimeButton");
2882         zoom_out_full_button.set_size_request(-1,16);
2883         zoom_out_full_button.add (*(manage (new Image (::get_icon("zoom_full")))));
2884         zoom_out_full_button.signal_clicked().connect (mem_fun(*this, &Editor::temporal_zoom_session));
2885         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to Session"));
2886
2887         zoom_focus_selector.set_name ("ZoomFocusSelector");
2888         set_popdown_strings (zoom_focus_selector, zoom_focus_strings, true);
2889         zoom_focus_selector.signal_changed().connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
2890         ARDOUR_UI::instance()->tooltips().set_tip (zoom_focus_selector, _("Zoom focus"));
2891
2892         zoom_box.pack_start (zoom_out_button, false, false);
2893         zoom_box.pack_start (zoom_in_button, false, false);
2894         zoom_box.pack_start (zoom_out_full_button, false, false);
2895
2896         /* Track zoom buttons */
2897         tav_expand_button.set_name ("TrackHeightButton");
2898         tav_expand_button.set_size_request(-1,20);
2899         tav_expand_button.add (*(manage (new Image (::get_icon("tav_exp")))));
2900         tav_expand_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::tav_zoom_step), true));
2901         ARDOUR_UI::instance()->tooltips().set_tip (tav_expand_button, _("Expand Tracks"));
2902
2903         tav_shrink_button.set_name ("TrackHeightButton");
2904         tav_shrink_button.set_size_request(-1,20);
2905         tav_shrink_button.add (*(manage (new Image (::get_icon("tav_shrink")))));
2906         tav_shrink_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::tav_zoom_step), false));
2907         ARDOUR_UI::instance()->tooltips().set_tip (tav_shrink_button, _("Shrink Tracks"));
2908
2909         track_zoom_box.set_spacing (1);
2910         track_zoom_box.set_border_width (0);
2911
2912         track_zoom_box.pack_start (tav_shrink_button, false, false);
2913         track_zoom_box.pack_start (tav_expand_button, false, false);
2914
2915         HBox* zbc = manage (new HBox);
2916         zbc->pack_start (zoom_focus_selector, PACK_SHRINK);
2917         zoom_vbox.pack_start (*zbc, PACK_SHRINK);
2918         zoom_vbox.pack_start (zoom_box, PACK_SHRINK);
2919         zoom_vbox.pack_start (track_zoom_box, PACK_SHRINK);
2920
2921         snap_box.set_spacing (1);
2922         snap_box.set_border_width (2);
2923
2924         snap_type_selector.set_name ("SnapTypeSelector");
2925         set_popdown_strings (snap_type_selector, snap_type_strings, true);
2926         snap_type_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_type_selection_done));
2927         ARDOUR_UI::instance()->tooltips().set_tip (snap_type_selector, _("Snap/Grid Units"));
2928
2929         snap_mode_selector.set_name ("SnapModeSelector");
2930         set_popdown_strings (snap_mode_selector, snap_mode_strings, true);
2931         snap_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_mode_selection_done));
2932         ARDOUR_UI::instance()->tooltips().set_tip (snap_mode_selector, _("Snap/Grid Mode"));
2933
2934         edit_point_selector.set_name ("EditPointSelector");
2935         set_popdown_strings (edit_point_selector, edit_point_strings, true);
2936         edit_point_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_point_selection_done));
2937         ARDOUR_UI::instance()->tooltips().set_tip (edit_point_selector, _("Edit point"));
2938
2939         snap_box.pack_start (edit_point_clock, false, false);
2940         snap_box.pack_start (snap_mode_selector, false, false);
2941         snap_box.pack_start (snap_type_selector, false, false);
2942         snap_box.pack_start (edit_point_selector, false, false);
2943
2944         /* Nudge */
2945
2946         HBox *nudge_box = manage (new HBox);
2947         nudge_box->set_spacing(1);
2948         nudge_box->set_border_width (2);
2949
2950         nudge_forward_button.signal_button_release_event().connect (mem_fun(*this, &Editor::nudge_forward_release), false);
2951         nudge_backward_button.signal_button_release_event().connect (mem_fun(*this, &Editor::nudge_backward_release), false);
2952
2953         nudge_box->pack_start (nudge_backward_button, false, false);
2954         nudge_box->pack_start (nudge_forward_button, false, false);
2955         nudge_box->pack_start (nudge_clock, false, false);
2956
2957
2958         /* Pack everything in... */
2959
2960         HBox* hbox = manage (new HBox);
2961         hbox->set_spacing(10);
2962
2963         tools_tearoff = manage (new TearOff (*hbox));
2964         tools_tearoff->set_name ("MouseModeBase");
2965         tools_tearoff->tearoff_window().signal_key_press_event().connect (bind (sigc::ptr_fun (relay_key_press), &tools_tearoff->tearoff_window()), false);
2966
2967         if (Profile->get_sae()) {
2968                 tools_tearoff->set_can_be_torn_off (false);
2969         }
2970
2971         tools_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2972                                              &tools_tearoff->tearoff_window()));
2973         tools_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2974                                              &tools_tearoff->tearoff_window(), 0));
2975         tools_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2976                                              &tools_tearoff->tearoff_window()));
2977         tools_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2978                                               &tools_tearoff->tearoff_window(), 0));
2979
2980         toolbar_hbox.set_spacing (10);
2981         toolbar_hbox.set_border_width (1);
2982
2983         toolbar_hbox.pack_start (*mouse_mode_tearoff, false, false);
2984         toolbar_hbox.pack_start (*tools_tearoff, false, false);
2985
2986         hbox->pack_start (snap_box, false, false);
2987         hbox->pack_start (*nudge_box, false, false);
2988         hbox->pack_start (panic_box, false, false);
2989
2990         hbox->show_all ();
2991
2992         toolbar_base.set_name ("ToolBarBase");
2993         toolbar_base.add (toolbar_hbox);
2994
2995         toolbar_frame.set_shadow_type (SHADOW_OUT);
2996         toolbar_frame.set_name ("BaseFrame");
2997         toolbar_frame.add (toolbar_base);
2998 }
2999
3000 void
3001 Editor::midi_panic ()
3002 {
3003         cerr << "MIDI panic\n";
3004
3005         if (session) {
3006                 session->midi_panic();
3007         }
3008 }
3009
3010 void
3011 Editor::setup_midi_toolbar ()
3012 {
3013         RefPtr<Action> act;
3014
3015         /* Midi sound notes */
3016         midi_sound_notes.add (*(manage (new Image (::get_icon("midi_sound_notes")))));
3017         midi_sound_notes.set_relief(Gtk::RELIEF_NONE);
3018         ARDOUR_UI::instance()->tooltips().set_tip (midi_sound_notes, _("Sound Notes"));
3019         midi_sound_notes.unset_flags (CAN_FOCUS);
3020
3021         /* Panic */
3022
3023         act = ActionManager::get_action (X_("MIDI"), X_("panic"));
3024         midi_panic_button.set_name("MidiPanicButton");
3025         act->connect_proxy (midi_panic_button);
3026
3027         panic_box.pack_start (midi_sound_notes , true, true);
3028         panic_box.pack_start (midi_panic_button, true, true);
3029 }
3030
3031 int
3032 Editor::convert_drop_to_paths (
3033                 vector<ustring>&                paths,
3034                 const RefPtr<Gdk::DragContext>& /*context*/,
3035                 gint                            /*x*/,
3036                 gint                            /*y*/,
3037                 const SelectionData&            data,
3038                 guint                           /*info*/,
3039                 guint                           /*time*/)
3040 {
3041         if (session == 0) {
3042                 return -1;
3043         }
3044
3045         vector<ustring> uris = data.get_uris();
3046
3047         if (uris.empty()) {
3048
3049                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
3050                    are actually URI lists. So do it by hand.
3051                 */
3052
3053                 if (data.get_target() != "text/plain") {
3054                         return -1;
3055                 }
3056
3057                 /* Parse the "uri-list" format that Nautilus provides,
3058                    where each pathname is delimited by \r\n.
3059
3060                    THERE MAY BE NO NULL TERMINATING CHAR!!!
3061                 */
3062
3063                 ustring txt = data.get_text();
3064                 const char* p;
3065                 const char* q;
3066
3067                 p = (const char *) malloc (txt.length() + 1);
3068                 txt.copy ((char *) p, txt.length(), 0);
3069                 ((char*)p)[txt.length()] = '\0';
3070
3071                 while (p)
3072                 {
3073                         if (*p != '#')
3074                         {
3075                                 while (g_ascii_isspace (*p))
3076                                         p++;
3077
3078                                 q = p;
3079                                 while (*q && (*q != '\n') && (*q != '\r')) {
3080                                         q++;
3081                                 }
3082
3083                                 if (q > p)
3084                                 {
3085                                         q--;
3086                                         while (q > p && g_ascii_isspace (*q))
3087                                                 q--;
3088
3089                                         if (q > p)
3090                                         {
3091                                                 uris.push_back (ustring (p, q - p + 1));
3092                                         }
3093                                 }
3094                         }
3095                         p = strchr (p, '\n');
3096                         if (p)
3097                                 p++;
3098                 }
3099
3100                 free ((void*)p);
3101
3102                 if (uris.empty()) {
3103                         return -1;
3104                 }
3105         }
3106
3107         for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
3108
3109                 if ((*i).substr (0,7) == "file://") {
3110
3111                         ustring p = *i;
3112                         PBD::url_decode (p);
3113
3114                         // scan forward past three slashes
3115
3116                         ustring::size_type slashcnt = 0;
3117                         ustring::size_type n = 0;
3118                         ustring::iterator x = p.begin();
3119
3120                         while (slashcnt < 3 && x != p.end()) {
3121                                 if ((*x) == '/') {
3122                                         slashcnt++;
3123                                 } else if (slashcnt == 3) {
3124                                         break;
3125                                 }
3126                                 ++n;
3127                                 ++x;
3128                         }
3129
3130                         if (slashcnt != 3 || x == p.end()) {
3131                                 error << _("malformed URL passed to drag-n-drop code") << endmsg;
3132                                 continue;
3133                         }
3134
3135                         paths.push_back (p.substr (n - 1));
3136                 }
3137         }
3138
3139         return 0;
3140 }
3141
3142 void
3143 Editor::new_tempo_section ()
3144
3145 {
3146 }
3147
3148 void
3149 Editor::map_transport_state ()
3150 {
3151         ENSURE_GUI_THREAD (mem_fun(*this, &Editor::map_transport_state));
3152
3153         if (session->transport_stopped()) {
3154                 have_pending_keyboard_selection = false;
3155         }
3156
3157         update_loop_range_view (true);
3158 }
3159
3160 /* UNDO/REDO */
3161
3162 Editor::State::State (PublicEditor const * e)
3163 {
3164         selection = new Selection (e);
3165 }
3166
3167 Editor::State::~State ()
3168 {
3169         delete selection;
3170 }
3171
3172 void
3173 Editor::store_state (State& state) const
3174 {
3175         *state.selection = *selection;
3176 }
3177
3178 void
3179 Editor::restore_state (State *state)
3180 {
3181         if (*selection == *state->selection) {
3182                 return;
3183         }
3184
3185         *selection = *state->selection;
3186         time_selection_changed ();
3187         region_selection_changed ();
3188
3189         /* XXX other selection change handlers? */
3190 }
3191
3192 void
3193 Editor::begin_reversible_command (string name)
3194 {
3195         if (session) {
3196                 before = &get_state();
3197                 session->begin_reversible_command (name);
3198         }
3199 }
3200
3201 void
3202 Editor::commit_reversible_command ()
3203 {
3204         if (session) {
3205                 session->commit_reversible_command (new MementoCommand<Editor>(*this, before, &get_state()));
3206         }
3207 }
3208
3209 void
3210 Editor::set_route_group_solo (Route& route, bool yn)
3211 {
3212         RouteGroup *route_group;
3213
3214         if ((route_group = route.route_group()) != 0) {
3215                 route_group->apply (&Route::set_solo, yn, this);
3216         } else {
3217                 route.set_solo (yn, this);
3218         }
3219 }
3220
3221 void
3222 Editor::set_route_group_mute (Route& route, bool yn)
3223 {
3224         RouteGroup *route_group = 0;
3225
3226         if ((route_group == route.route_group()) != 0) {
3227                 route_group->apply (&Route::set_mute, yn, this);
3228         } else {
3229                 route.set_mute (yn, this);
3230         }
3231 }
3232
3233 void
3234 Editor::history_changed ()
3235 {
3236         string label;
3237
3238         if (undo_action && session) {
3239                 if (session->undo_depth() == 0) {
3240                         label = _("Undo");
3241                 } else {
3242                         label = string_compose(_("Undo (%1)"), session->next_undo());
3243                 }
3244                 undo_action->property_label() = label;
3245         }
3246
3247         if (redo_action && session) {
3248                 if (session->redo_depth() == 0) {
3249                         label = _("Redo");
3250                 } else {
3251                         label = string_compose(_("Redo (%1)"), session->next_redo());
3252                 }
3253                 redo_action->property_label() = label;
3254         }
3255 }
3256
3257 void
3258 Editor::duplicate_dialog (bool with_dialog)
3259 {
3260         float times = 1.0f;
3261
3262         if (mouse_mode == MouseRange) {
3263                 if (selection->time.length() == 0) {
3264                         return;
3265                 }
3266         }
3267
3268         RegionSelection rs;
3269         get_regions_for_action (rs);
3270
3271         if (mouse_mode != MouseRange) {
3272
3273                 if (rs.empty()) {
3274                         return;
3275                 }
3276         }
3277
3278         if (with_dialog) {
3279
3280                 ArdourDialog win ("Duplicate");
3281                 Label  label (_("Number of Duplications:"));
3282                 Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
3283                 SpinButton spinner (adjustment, 0.0, 1);
3284                 HBox hbox;
3285
3286                 win.get_vbox()->set_spacing (12);
3287                 win.get_vbox()->pack_start (hbox);
3288                 hbox.set_border_width (6);
3289                 hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
3290
3291                 /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
3292                    place, visually. so do this by hand.
3293                 */
3294
3295                 hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
3296                 spinner.signal_activate().connect (sigc::bind (mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
3297                 spinner.grab_focus();
3298
3299                 hbox.show ();
3300                 label.show ();
3301                 spinner.show ();
3302
3303                 win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3304                 win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
3305                 win.set_default_response (RESPONSE_ACCEPT);
3306
3307                 win.set_position (WIN_POS_MOUSE);
3308
3309                 spinner.grab_focus ();
3310
3311                 switch (win.run ()) {
3312                 case RESPONSE_ACCEPT:
3313                         break;
3314                 default:
3315                         return;
3316                 }
3317
3318                 times = adjustment.get_value();
3319         }
3320
3321         if (mouse_mode == MouseRange) {
3322                 duplicate_selection (times);
3323         } else {
3324                 duplicate_some_regions (rs, times);
3325         }
3326 }
3327
3328 void
3329 Editor::show_verbose_canvas_cursor ()
3330 {
3331         verbose_canvas_cursor->raise_to_top();
3332         verbose_canvas_cursor->show();
3333         verbose_cursor_visible = true;
3334 }
3335
3336 void
3337 Editor::hide_verbose_canvas_cursor ()
3338 {
3339         verbose_canvas_cursor->hide();
3340         verbose_cursor_visible = false;
3341 }
3342
3343 double
3344 Editor::clamp_verbose_cursor_x (double x)
3345 {
3346         if (x < 0) {
3347                 x = 0;
3348         } else {
3349                 x = min (_canvas_width - 200.0, x);
3350         }
3351         return x;
3352 }
3353
3354 double
3355 Editor::clamp_verbose_cursor_y (double y)
3356 {
3357         if (y < canvas_timebars_vsize) {
3358                 y = canvas_timebars_vsize;
3359         } else {
3360                 y = min (_canvas_height - 50, y);
3361         }
3362         return y;
3363 }
3364
3365 void
3366 Editor::show_verbose_canvas_cursor_with (const string & txt)
3367 {
3368         verbose_canvas_cursor->property_text() = txt.c_str();
3369
3370         int x, y;
3371         double wx, wy;
3372
3373         track_canvas->get_pointer (x, y);
3374         track_canvas->window_to_world (x, y, wx, wy);
3375
3376         /* move it away from the mouse pointer to avoid an
3377            infinite loop of enter/leave events.
3378         */
3379
3380         wx += 20;
3381         wy += 20;
3382
3383         /* don't get too close to the edge */
3384         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (wx);
3385         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (wy);
3386
3387         show_verbose_canvas_cursor ();
3388 }
3389
3390 void
3391 Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
3392 {
3393         verbose_canvas_cursor->property_text() = txt.c_str();
3394         /* don't get too close to the edge */
3395         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (x);
3396         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (y);
3397 }
3398
3399 void
3400 Editor::set_verbose_canvas_cursor_text (const string & txt)
3401 {
3402         verbose_canvas_cursor->property_text() = txt.c_str();
3403 }
3404
3405 void
3406 Editor::set_edit_mode (EditMode m)
3407 {
3408         Config->set_edit_mode (m);
3409 }
3410
3411 void
3412 Editor::cycle_edit_mode ()
3413 {
3414         switch (Config->get_edit_mode()) {
3415         case Slide:
3416                 if (Profile->get_sae()) {
3417                         Config->set_edit_mode (Lock);
3418                 } else {
3419                         Config->set_edit_mode (Splice);
3420                 }
3421                 break;
3422         case Splice:
3423                 Config->set_edit_mode (Lock);
3424                 break;
3425         case Lock:
3426                 Config->set_edit_mode (Slide);
3427                 break;
3428         }
3429 }
3430
3431 void
3432 Editor::edit_mode_selection_done ()
3433 {
3434         if (session == 0) {
3435                 return;
3436         }
3437
3438         string choice = edit_mode_selector.get_active_text();
3439         EditMode mode = Slide;
3440
3441         if (choice == _("Splice Edit")) {
3442                 mode = Splice;
3443         } else if (choice == _("Slide Edit")) {
3444                 mode = Slide;
3445         } else if (choice == _("Lock Edit")) {
3446                 mode = Lock;
3447         }
3448
3449         Config->set_edit_mode (mode);
3450 }
3451
3452 void
3453 Editor::snap_type_selection_done ()
3454 {
3455         string choice = snap_type_selector.get_active_text();
3456         SnapType snaptype = SnapToBeat;
3457
3458         if (choice == _("Beats/3")) {
3459                 snaptype = SnapToAThirdBeat;
3460         } else if (choice == _("Beats/4")) {
3461                 snaptype = SnapToAQuarterBeat;
3462         } else if (choice == _("Beats/8")) {
3463                 snaptype = SnapToAEighthBeat;
3464         } else if (choice == _("Beats/16")) {
3465                 snaptype = SnapToASixteenthBeat;
3466         } else if (choice == _("Beats/32")) {
3467                 snaptype = SnapToAThirtysecondBeat;
3468         } else if (choice == _("Beats")) {
3469                 snaptype = SnapToBeat;
3470         } else if (choice == _("Bars")) {
3471                 snaptype = SnapToBar;
3472         } else if (choice == _("Marks")) {
3473                 snaptype = SnapToMark;
3474         } else if (choice == _("Region starts")) {
3475                 snaptype = SnapToRegionStart;
3476         } else if (choice == _("Region ends")) {
3477                 snaptype = SnapToRegionEnd;
3478         } else if (choice == _("Region bounds")) {
3479                 snaptype = SnapToRegionBoundary;
3480         } else if (choice == _("Region syncs")) {
3481                 snaptype = SnapToRegionSync;
3482         } else if (choice == _("CD Frames")) {
3483                 snaptype = SnapToCDFrame;
3484         } else if (choice == _("SMPTE Frames")) {
3485                 snaptype = SnapToSMPTEFrame;
3486         } else if (choice == _("SMPTE Seconds")) {
3487                 snaptype = SnapToSMPTESeconds;
3488         } else if (choice == _("SMPTE Minutes")) {
3489                 snaptype = SnapToSMPTEMinutes;
3490         } else if (choice == _("Seconds")) {
3491                 snaptype = SnapToSeconds;
3492         } else if (choice == _("Minutes")) {
3493                 snaptype = SnapToMinutes;
3494         }
3495
3496         RefPtr<RadioAction> ract = snap_type_action (snaptype);
3497         if (ract) {
3498                 ract->set_active ();
3499         }
3500 }
3501
3502 void
3503 Editor::snap_mode_selection_done ()
3504 {
3505         string choice = snap_mode_selector.get_active_text();
3506         SnapMode mode = SnapNormal;
3507
3508         if (choice == _("No Grid")) {
3509                 mode = SnapOff;
3510         } else if (choice == _("Grid")) {
3511                 mode = SnapNormal;
3512         } else if (choice == _("Magnetic")) {
3513                 mode = SnapMagnetic;
3514         }
3515
3516         RefPtr<RadioAction> ract = snap_mode_action (mode);
3517
3518         if (ract) {
3519                 ract->set_active (true);
3520         }
3521 }
3522
3523 void
3524 Editor::cycle_edit_point (bool with_marker)
3525 {
3526         switch (_edit_point) {
3527         case EditAtMouse:
3528                 set_edit_point_preference (EditAtPlayhead);
3529                 break;
3530         case EditAtPlayhead:
3531                 if (with_marker) {
3532                         set_edit_point_preference (EditAtSelectedMarker);
3533                 } else {
3534                         set_edit_point_preference (EditAtMouse);
3535                 }
3536                 break;
3537         case EditAtSelectedMarker:
3538                 set_edit_point_preference (EditAtMouse);
3539                 break;
3540         }
3541 }
3542
3543 void
3544 Editor::edit_point_selection_done ()
3545 {
3546         string choice = edit_point_selector.get_active_text();
3547         EditPoint ep = EditAtSelectedMarker;
3548
3549         if (choice == _("Marker")) {
3550                 set_edit_point_preference (EditAtSelectedMarker);
3551         } else if (choice == _("Playhead")) {
3552                 set_edit_point_preference (EditAtPlayhead);
3553         } else {
3554                 set_edit_point_preference (EditAtMouse);
3555         }
3556
3557         RefPtr<RadioAction> ract = edit_point_action (ep);
3558
3559         if (ract) {
3560                 ract->set_active (true);
3561         }
3562 }
3563
3564 void
3565 Editor::zoom_focus_selection_done ()
3566 {
3567         string choice = zoom_focus_selector.get_active_text();
3568         ZoomFocus focus_type = ZoomFocusLeft;
3569
3570         if (choice == _("Left")) {
3571                 focus_type = ZoomFocusLeft;
3572         } else if (choice == _("Right")) {
3573                 focus_type = ZoomFocusRight;
3574         } else if (choice == _("Center")) {
3575                 focus_type = ZoomFocusCenter;
3576         } else if (choice == _("Play")) {
3577                 focus_type = ZoomFocusPlayhead;
3578         } else if (choice == _("Edit")) {
3579                 focus_type = ZoomFocusEdit;
3580         } else if (choice == _("Active Mark")) {
3581                 focus_type = ZoomFocusEdit;
3582         } else if (choice == _("Active Mark")) {
3583                 focus_type = ZoomFocusEdit;
3584         } else {
3585                 focus_type = ZoomFocusMouse;
3586         }
3587
3588         RefPtr<RadioAction> ract = zoom_focus_action (focus_type);
3589
3590         if (ract) {
3591                 ract->set_active ();
3592         }
3593 }
3594
3595 gint
3596 Editor::edit_controls_button_release (GdkEventButton* ev)
3597 {
3598         if (Keyboard::is_context_menu_event (ev)) {
3599                 ARDOUR_UI::instance()->add_route (this);
3600         }
3601         return TRUE;
3602 }
3603
3604 gint
3605 Editor::mouse_select_button_release (GdkEventButton* ev)
3606 {
3607         /* this handles just right-clicks */
3608
3609         if (ev->button != 3) {
3610                 return false;
3611         }
3612
3613         return true;
3614 }
3615
3616 Editor::TrackViewList *
3617 Editor::get_valid_views (TimeAxisView* track, RouteGroup* group)
3618 {
3619         TrackViewList::iterator i;
3620
3621         TrackViewList* v = new TrackViewList;
3622
3623         if (track == 0 && group == 0) {
3624
3625                 /* all views */
3626
3627                 for (i = track_views.begin(); i != track_views.end (); ++i) {
3628                         v->push_back (*i);
3629                 }
3630
3631         } else if ((track != 0 && group == 0) || (track != 0 && group != 0 && !group->active_property (RouteGroup::Select))) {
3632
3633                 /* just the view for this track
3634                  */
3635
3636                 v->push_back (track);
3637
3638         } else {
3639
3640                 /* views for all tracks in the route group */
3641
3642                 for (i = track_views.begin(); i != track_views.end (); ++i) {
3643
3644                         if (group == 0 || ((*i)->route_group() == group && group->active_property (RouteGroup::Select))) {
3645                                 v->push_back (*i);
3646                         }
3647                 }
3648         }
3649
3650         return v;
3651 }
3652
3653 void
3654 Editor::set_zoom_focus (ZoomFocus f)
3655 {
3656         string str = zoom_focus_strings[(int)f];
3657
3658         if (str != zoom_focus_selector.get_active_text()) {
3659                 zoom_focus_selector.set_active_text (str);
3660         }
3661
3662         if (zoom_focus != f) {
3663                 zoom_focus = f;
3664
3665                 ZoomFocusChanged (); /* EMIT_SIGNAL */
3666
3667                 instant_save ();
3668         }
3669 }
3670
3671 void
3672 Editor::ensure_float (Window& win)
3673 {
3674         win.set_transient_for (*this);
3675 }
3676
3677 void
3678 Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
3679 {
3680         /* recover or initialize pane positions. do this here rather than earlier because
3681            we don't want the positions to change the child allocations, which they seem to do.
3682          */
3683
3684         int pos;
3685         XMLProperty* prop;
3686         char buf[32];
3687         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
3688         int width, height;
3689         static int32_t done;
3690         XMLNode* geometry;
3691
3692         width = default_width;
3693         height = default_height;
3694
3695         if ((geometry = find_named_node (*node, "geometry")) != 0) {
3696
3697                 if ((prop = geometry->property ("x_size")) == 0) {
3698                         prop = geometry->property ("x-size");
3699                 }
3700                 if (prop) {
3701                         width = atoi (prop->value());
3702                 }
3703                 if ((prop = geometry->property ("y_size")) == 0) {
3704                         prop = geometry->property ("y-size");
3705                 }
3706                 if (prop) {
3707                         height = atoi (prop->value());
3708                 }
3709         }
3710
3711         if (which == static_cast<Paned*> (&edit_pane)) {
3712
3713                 if (done) {
3714                         return;
3715                 }
3716
3717                 if (!geometry || (prop = geometry->property ("edit-pane-pos")) == 0) {
3718                         /* initial allocation is 90% to canvas, 10% to notebook */
3719                         pos = (int) floor (alloc.get_width() * 0.90f);
3720                         snprintf (buf, sizeof(buf), "%d", pos);
3721                 } else {
3722                         pos = atoi (prop->value());
3723                 }
3724
3725                 if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
3726                         edit_pane.set_position (pos);
3727                         pre_maximal_pane_position = pos;
3728                 }
3729         }
3730 }
3731
3732 void
3733 Editor::detach_tearoff (Box* /*b*/, Window* /*w*/)
3734 {
3735         cerr << "remove tearoff\n";
3736
3737         if (tools_tearoff->torn_off() &&
3738             mouse_mode_tearoff->torn_off()) {
3739                 top_hbox.remove (toolbar_frame);
3740         }
3741 }
3742
3743 void
3744 Editor::reattach_tearoff (Box* /*b*/, Window* /*w*/, int32_t /*n*/)
3745 {
3746         cerr << "reattach tearoff\n";
3747         if (toolbar_frame.get_parent() == 0) {
3748                 top_hbox.pack_end (toolbar_frame);
3749         }
3750 }
3751
3752 void
3753 Editor::set_show_measures (bool yn)
3754 {
3755         if (_show_measures != yn) {
3756                 hide_measures ();
3757
3758                 if ((_show_measures = yn) == true) {
3759                         if (tempo_lines)
3760                                 tempo_lines->show();
3761                         draw_measures ();
3762                 }
3763                 instant_save ();
3764         }
3765 }
3766
3767 void
3768 Editor::toggle_follow_playhead ()
3769 {
3770         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3771         if (act) {
3772                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3773                 set_follow_playhead (tact->get_active());
3774         }
3775 }
3776
3777 void
3778 Editor::set_follow_playhead (bool yn)
3779 {
3780         if (_follow_playhead != yn) {
3781                 if ((_follow_playhead = yn) == true) {
3782                         /* catch up */
3783                         update_current_screen ();
3784                 }
3785                 instant_save ();
3786         }
3787 }
3788
3789 void
3790 Editor::toggle_xfade_active (boost::weak_ptr<Crossfade> wxfade)
3791 {
3792         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3793         if (xfade) {
3794                 xfade->set_active (!xfade->active());
3795         }
3796 }
3797
3798 void
3799 Editor::toggle_xfade_length (boost::weak_ptr<Crossfade> wxfade)
3800 {
3801         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3802         if (xfade) {
3803                 xfade->set_follow_overlap (!xfade->following_overlap());
3804         }
3805 }
3806
3807 void
3808 Editor::edit_xfade (boost::weak_ptr<Crossfade> wxfade)
3809 {
3810         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3811
3812         if (!xfade) {
3813                 return;
3814         }
3815
3816         CrossfadeEditor cew (*session, xfade, xfade->fade_in().get_min_y(), 1.0);
3817
3818         ensure_float (cew);
3819
3820         switch (cew.run ()) {
3821         case RESPONSE_ACCEPT:
3822                 break;
3823         default:
3824                 return;
3825         }
3826
3827         cew.apply ();
3828         xfade->StateChanged (Change (~0));
3829 }
3830
3831 PlaylistSelector&
3832 Editor::playlist_selector () const
3833 {
3834         return *_playlist_selector;
3835 }
3836
3837 Evoral::MusicalTime
3838 Editor::get_grid_type_as_beats (bool& success, nframes64_t position)
3839 {
3840         success = true;
3841
3842         switch (snap_type) {
3843         case SnapToBeat:
3844                 return 1.0;
3845                 break;
3846
3847         case SnapToAThirtysecondBeat:
3848                 return 1.0/32.0;
3849                 break;
3850
3851         case SnapToASixteenthBeat:
3852                 return 1.0/16.0;
3853                 break;
3854
3855         case SnapToAEighthBeat:
3856                 return 1.0/8.0;
3857                 break;
3858
3859         case SnapToAQuarterBeat:
3860                 return 1.0/4.0;
3861                 break;
3862
3863         case SnapToAThirdBeat:
3864                 return 1.0/3.0;
3865                 break;
3866
3867         case SnapToBar:
3868                 if (session) {
3869                         return session->tempo_map().meter_at (position).beats_per_bar();
3870                 }
3871                 break;
3872
3873         case SnapToCDFrame:
3874         case SnapToSMPTEFrame:
3875         case SnapToSMPTESeconds:
3876         case SnapToSMPTEMinutes:
3877         case SnapToSeconds:
3878         case SnapToMinutes:
3879         case SnapToRegionStart:
3880         case SnapToRegionEnd:
3881         case SnapToRegionSync:
3882         case SnapToRegionBoundary:
3883         default:
3884                 success = false;
3885                 break;
3886         }
3887
3888         return 0.0;
3889 }
3890
3891 nframes64_t
3892 Editor::get_nudge_distance (nframes64_t pos, nframes64_t& next)
3893 {
3894         nframes64_t ret;
3895
3896         ret = nudge_clock.current_duration (pos);
3897         next = ret + 1; /* XXXX fix me */
3898
3899         return ret;
3900 }
3901
3902 void
3903 Editor::end_location_changed (Location* location)
3904 {
3905         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
3906         //reset_scrolling_region ();
3907         nframes64_t session_span = location->start() + (nframes64_t) floorf (current_page_frames() * 0.10f);
3908         horizontal_adjustment.set_upper (session_span / frames_per_unit);
3909 }
3910
3911 int
3912 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
3913 {
3914         ArdourDialog dialog ("playlist deletion dialog");
3915         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
3916                                         "If left alone, no audio files used by it will be cleaned.\n"
3917                                         "If deleted, audio files used by it alone by will cleaned."),
3918                                       pl->name()));
3919
3920         dialog.set_position (WIN_POS_CENTER);
3921         dialog.get_vbox()->pack_start (label);
3922
3923         label.show ();
3924
3925         dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
3926         dialog.add_button (_("Keep playlist"), RESPONSE_REJECT);
3927         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
3928
3929         switch (dialog.run ()) {
3930         case RESPONSE_ACCEPT:
3931                 /* delete the playlist */
3932                 return 0;
3933                 break;
3934
3935         case RESPONSE_REJECT:
3936                 /* keep the playlist */
3937                 return 1;
3938                 break;
3939
3940         default:
3941                 break;
3942         }
3943
3944         return -1;
3945 }
3946
3947 bool
3948 Editor::audio_region_selection_covers (nframes64_t where)
3949 {
3950         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
3951                 if ((*a)->region()->covers (where)) {
3952                         return true;
3953                 }
3954         }
3955
3956         return false;
3957 }
3958
3959 void
3960 Editor::prepare_for_cleanup ()
3961 {
3962         cut_buffer->clear_regions ();
3963         cut_buffer->clear_playlists ();
3964
3965         selection->clear_regions ();
3966         selection->clear_playlists ();
3967
3968         _regions->suspend_redisplay ();
3969 }
3970
3971 void
3972 Editor::finish_cleanup ()
3973 {
3974         _regions->resume_redisplay ();
3975 }
3976
3977 Location*
3978 Editor::transport_loop_location()
3979 {
3980         if (session) {
3981                 return session->locations()->auto_loop_location();
3982         } else {
3983                 return 0;
3984         }
3985 }
3986
3987 Location*
3988 Editor::transport_punch_location()
3989 {
3990         if (session) {
3991                 return session->locations()->auto_punch_location();
3992         } else {
3993                 return 0;
3994         }
3995 }
3996
3997 bool
3998 Editor::control_layout_scroll (GdkEventScroll* ev)
3999 {
4000         switch (ev->direction) {
4001         case GDK_SCROLL_UP:
4002                 scroll_tracks_up_line ();
4003                 return true;
4004                 break;
4005
4006         case GDK_SCROLL_DOWN:
4007                 scroll_tracks_down_line ();
4008                 return true;
4009
4010         default:
4011                 /* no left/right handling yet */
4012                 break;
4013         }
4014
4015         return false;
4016 }
4017
4018 void
4019 Editor::session_state_saved (string snap_name)
4020 {
4021         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::session_state_saved), snap_name));
4022
4023         _snapshots->redisplay ();
4024 }
4025
4026 void
4027 Editor::maximise_editing_space ()
4028 {
4029         mouse_mode_tearoff->set_visible (false);
4030         tools_tearoff->set_visible (false);
4031
4032         pre_maximal_pane_position = edit_pane.get_position();
4033         pre_maximal_editor_width = this->get_width();
4034
4035         if(post_maximal_pane_position == 0) {
4036                 post_maximal_pane_position = edit_pane.get_width();
4037         }
4038
4039         fullscreen();
4040
4041         if(post_maximal_editor_width) {
4042                 edit_pane.set_position (post_maximal_pane_position -
4043                         abs(post_maximal_editor_width - pre_maximal_editor_width));
4044         } else {
4045                 edit_pane.set_position (post_maximal_pane_position);
4046         }
4047 }
4048
4049 void
4050 Editor::restore_editing_space ()
4051 {
4052         // user changed width of pane during fullscreen
4053
4054         if(post_maximal_pane_position != edit_pane.get_position()) {
4055                 post_maximal_pane_position = edit_pane.get_position();
4056         }
4057
4058         unfullscreen();
4059
4060         mouse_mode_tearoff->set_visible (true);
4061         tools_tearoff->set_visible (true);
4062         post_maximal_editor_width = this->get_width();
4063
4064         edit_pane.set_position (pre_maximal_pane_position + abs(this->get_width() - pre_maximal_editor_width));
4065 }
4066
4067 /**
4068  *  Make new playlists for a given track and also any others that belong
4069  *  to the same active route group with the `edit' property.
4070  *  @param v Track.
4071  */
4072
4073 void
4074 Editor::new_playlists (TimeAxisView* v)
4075 {
4076         begin_reversible_command (_("new playlists"));
4077         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4078         session->get_playlists(playlists);
4079         mapover_tracks (bind (mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, RouteGroup::Edit);
4080         commit_reversible_command ();
4081 }
4082
4083 /**
4084  *  Use a copy of the current playlist for a given track and also any others that belong
4085  *  to the same active route group with the `edit' property.
4086  *  @param v Track.
4087  */
4088
4089 void
4090 Editor::copy_playlists (TimeAxisView* v)
4091 {
4092         begin_reversible_command (_("copy playlists"));
4093         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4094         session->get_playlists(playlists);
4095         mapover_tracks (bind (mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, RouteGroup::Edit);
4096         commit_reversible_command ();
4097 }
4098
4099 /** Clear the current playlist for a given track and also any others that belong
4100  *  to the same active route group with the `edit' property.
4101  *  @param v Track.
4102  */
4103
4104 void
4105 Editor::clear_playlists (TimeAxisView* v)
4106 {
4107         begin_reversible_command (_("clear playlists"));
4108         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4109         session->get_playlists(playlists);
4110         mapover_tracks (mem_fun (*this, &Editor::mapped_clear_playlist), v, RouteGroup::Edit);
4111         commit_reversible_command ();
4112 }
4113
4114 void
4115 Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4116 {
4117         atv.use_new_playlist (sz > 1 ? false : true, playlists);
4118 }
4119
4120 void
4121 Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4122 {
4123         atv.use_copy_playlist (sz > 1 ? false : true, playlists);
4124 }
4125
4126 void
4127 Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t /*sz*/)
4128 {
4129         atv.clear_playlist ();
4130 }
4131
4132 bool
4133 Editor::on_key_press_event (GdkEventKey* ev)
4134 {
4135         return key_press_focus_accelerator_handler (*this, ev);
4136 }
4137
4138 bool
4139 Editor::on_key_release_event (GdkEventKey* ev)
4140 {
4141         return Gtk::Window::on_key_release_event (ev);
4142         // return key_press_focus_accelerator_handler (*this, ev);
4143 }
4144
4145 void
4146 Editor::reset_x_origin (nframes64_t frame)
4147 {
4148         //cerr << "resetting x origin" << endl;
4149         queue_visual_change (frame);
4150 }
4151
4152 void
4153 Editor::reset_y_origin (double y)
4154 {
4155         queue_visual_change_y (y);
4156 }
4157
4158 void
4159 Editor::reset_zoom (double fpu)
4160 {
4161         queue_visual_change (fpu);
4162 }
4163
4164 void
4165 Editor::reposition_and_zoom (nframes64_t frame, double fpu)
4166 {
4167         //cerr << "Editor::reposition_and_zoom () called ha v:l:u:ps:fpu = " << horizontal_adjustment.get_value() << ":" << horizontal_adjustment.get_lower() << ":" << horizontal_adjustment.get_upper() << ":" << horizontal_adjustment.get_page_size() << ":" << frames_per_unit << endl;//DEBUG
4168         reset_x_origin (frame);
4169         reset_zoom (fpu);
4170
4171         if (!no_save_visual) {
4172                 undo_visual_stack.push_back (current_visual_state(false));
4173         }
4174 }
4175
4176 Editor::VisualState*
4177 Editor::current_visual_state (bool with_tracks)
4178 {
4179         VisualState* vs = new VisualState;
4180         vs->y_position = vertical_adjustment.get_value();
4181         vs->frames_per_unit = frames_per_unit;
4182         vs->leftmost_frame = leftmost_frame;
4183         vs->zoom_focus = zoom_focus;
4184
4185         if (with_tracks) {
4186                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4187                         vs->track_states.push_back (TAVState ((*i), &(*i)->get_state()));
4188                 }
4189         }
4190
4191         return vs;
4192 }
4193
4194 void
4195 Editor::undo_visual_state ()
4196 {
4197         if (undo_visual_stack.empty()) {
4198                 return;
4199         }
4200
4201         VisualState* vs = undo_visual_stack.back();
4202         undo_visual_stack.pop_back();
4203         use_visual_state (*vs);
4204         redo_visual_stack.push_back (vs);
4205 }
4206
4207 void
4208 Editor::redo_visual_state ()
4209 {
4210         if (redo_visual_stack.empty()) {
4211                 return;
4212         }
4213
4214         VisualState* vs = redo_visual_stack.back();
4215         redo_visual_stack.pop_back();
4216         use_visual_state (*vs);
4217         undo_visual_stack.push_back (vs);
4218 }
4219
4220 void
4221 Editor::swap_visual_state ()
4222 {
4223         if (undo_visual_stack.empty()) {
4224                 redo_visual_state ();
4225         } else {
4226                 undo_visual_state ();
4227         }
4228 }
4229
4230 void
4231 Editor::use_visual_state (VisualState& vs)
4232 {
4233         no_save_visual = true;
4234
4235         _routes->suspend_redisplay ();
4236
4237         vertical_adjustment.set_value (vs.y_position);
4238
4239         set_zoom_focus (vs.zoom_focus);
4240         reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
4241
4242         for (list<TAVState>::iterator i = vs.track_states.begin(); i != vs.track_states.end(); ++i) {
4243                 TrackViewList::iterator t;
4244
4245                 /* check if the track still exists - it could have been deleted */
4246
4247                 if ((t = find (track_views.begin(), track_views.end(), i->first)) != track_views.end()) {
4248                         (*t)->set_state (*(i->second), Stateful::loading_state_version);
4249                 }
4250         }
4251
4252
4253         if (!vs.track_states.empty()) {
4254                 _routes->update_visibility ();
4255         }
4256
4257         _routes->resume_redisplay ();
4258
4259         no_save_visual = false;
4260 }
4261
4262 void
4263 Editor::set_frames_per_unit (double fpu)
4264 {
4265         /* this is the core function that controls the zoom level of the canvas. it is called
4266            whenever one or more calls are made to reset_zoom(). it executes in an idle handler.
4267         */
4268
4269         if (fpu == frames_per_unit) {
4270                 return;
4271         }
4272
4273         if (fpu < 2.0) {
4274                 fpu = 2.0;
4275         }
4276
4277
4278         /* don't allow zooms that fit more than the maximum number
4279            of frames into an 800 pixel wide space.
4280         */
4281
4282         if (max_frames / fpu < 800.0) {
4283                 return;
4284         }
4285
4286         if (tempo_lines)
4287                 tempo_lines->tempo_map_changed();
4288
4289         frames_per_unit = fpu;
4290         post_zoom ();
4291 }
4292
4293 void
4294 Editor::post_zoom ()
4295 {
4296         nframes64_t cef = 0;
4297
4298         // convert fpu to frame count
4299
4300         nframes64_t frames = (nframes64_t) floor (frames_per_unit * _canvas_width);
4301
4302         if (frames_per_unit != zoom_range_clock.current_duration()) {
4303                 zoom_range_clock.set (frames);
4304         }
4305
4306         if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
4307                 if (!selection->tracks.empty()) {
4308                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4309                                 (*i)->reshow_selection (selection->time);
4310                         }
4311                 } else {
4312                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4313                                 (*i)->reshow_selection (selection->time);
4314                         }
4315                 }
4316         }
4317
4318         leftmost_frame = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
4319
4320         ZoomChanged (); /* EMIT_SIGNAL */
4321
4322         reset_hscrollbar_stepping ();
4323
4324         if (session) {
4325                 cef = session->current_end_frame() + (current_page_frames() / 10);// Add a little extra so we can see the end marker
4326         }
4327         horizontal_adjustment.set_upper (cef / frames_per_unit);
4328
4329         //reset_scrolling_region ();
4330
4331         if (playhead_cursor) {
4332                 playhead_cursor->set_position (playhead_cursor->current_frame);
4333         }
4334
4335         refresh_location_display();
4336         _summary->set_overlays_dirty ();
4337
4338         instant_save ();
4339 }
4340
4341 void
4342 Editor::queue_visual_change (nframes64_t where)
4343 {
4344         pending_visual_change.add (VisualChange::TimeOrigin);
4345
4346         /* if we're moving beyond the end, make sure the upper limit of the horizontal adjustment
4347            can reach.
4348         */
4349
4350         if (where > session->current_end_frame()) {
4351                 horizontal_adjustment.set_upper ((where + current_page_frames()) / frames_per_unit);
4352         }
4353
4354         pending_visual_change.time_origin = where;
4355
4356         ensure_visual_change_idle_handler ();
4357 }
4358
4359 void
4360 Editor::queue_visual_change (double fpu)
4361 {
4362         pending_visual_change.add (VisualChange::ZoomLevel);
4363         pending_visual_change.frames_per_unit = fpu;
4364
4365         ensure_visual_change_idle_handler ();
4366
4367 }
4368
4369 void
4370 Editor::queue_visual_change_y (double y)
4371 {
4372         pending_visual_change.add (VisualChange::YOrigin);
4373         pending_visual_change.y_origin = y;
4374
4375         ensure_visual_change_idle_handler ();
4376 }
4377
4378 void
4379 Editor::ensure_visual_change_idle_handler ()
4380 {
4381         if (pending_visual_change.idle_handler_id < 0) {
4382                 pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
4383         }
4384 }
4385
4386 int
4387 Editor::_idle_visual_changer (void* arg)
4388 {
4389         return static_cast<Editor*>(arg)->idle_visual_changer ();
4390 }
4391
4392 int
4393 Editor::idle_visual_changer ()
4394 {
4395         VisualChange::Type p = pending_visual_change.pending;
4396         pending_visual_change.pending = (VisualChange::Type) 0;
4397
4398 #ifdef FIX_THIS_FOR_V3
4399         double last_time_origin = horizontal_adjustment.get_value();
4400 #endif
4401
4402         if (p & VisualChange::ZoomLevel) {
4403                 set_frames_per_unit (pending_visual_change.frames_per_unit);
4404
4405                 compute_fixed_ruler_scale ();
4406                 compute_current_bbt_points(pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4407                 compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4408                 update_tempo_based_rulers ();
4409         }
4410         if (p & VisualChange::TimeOrigin) {
4411                 horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
4412         }
4413         if (p & VisualChange::YOrigin) {
4414                 vertical_adjustment.set_value (pending_visual_change.y_origin);
4415         }
4416
4417         nframes64_t csf=0, cef=0;
4418         nframes64_t current_time_origin = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
4419
4420         if (session) {
4421                 csf = session->current_start_frame();
4422                 cef = session->current_end_frame();
4423         }
4424
4425         /* if we seek beyond the current end of the canvas, move the end */
4426
4427 #ifdef FIX_THIS_FOR_V3
4428         if (last_time_origin == horizontal_adjustment.get_value() ) {
4429                 /* changed signal not emitted */
4430                 update_fixed_rulers ();
4431                 redisplay_tempo (true);
4432         }
4433 #endif
4434
4435         if (current_time_origin != pending_visual_change.time_origin) {
4436                 cef += current_page_frames() / 10; // Add a little extra so we can see the end marker
4437                 horizontal_adjustment.set_upper (cef / frames_per_unit);
4438                 horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
4439         } else {
4440                 update_fixed_rulers();
4441                 redisplay_tempo (true);
4442         }
4443
4444         _summary->set_overlays_dirty ();
4445
4446         //cerr << "Editor::idle_visual_changer () called ha v:l:u:ps:fpu = " << horizontal_adjustment.get_value() << ":" << horizontal_adjustment.get_lower() << ":" << horizontal_adjustment.get_upper() << ":" << horizontal_adjustment.get_page_size() << ":" << frames_per_unit << endl;//DEBUG
4447         pending_visual_change.idle_handler_id = -1;
4448         return 0; /* this is always a one-shot call */
4449 }
4450
4451 struct EditorOrderTimeAxisSorter {
4452     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
4453             return a->order () < b->order ();
4454     }
4455 };
4456
4457 void
4458 Editor::sort_track_selection (TrackSelection* sel)
4459 {
4460         EditorOrderTimeAxisSorter cmp;
4461
4462         if (sel) {
4463                 sel->sort (cmp);
4464         } else {
4465                 selection->tracks.sort (cmp);
4466         }
4467 }
4468
4469 nframes64_t
4470 Editor::get_preferred_edit_position (bool ignore_playhead)
4471 {
4472         bool ignored;
4473         nframes64_t where = 0;
4474         EditPoint ep = _edit_point;
4475
4476         if (entered_marker) {
4477                 return entered_marker->position();
4478         }
4479
4480         if (ignore_playhead && ep == EditAtPlayhead) {
4481                 ep = EditAtSelectedMarker;
4482         }
4483
4484         switch (ep) {
4485         case EditAtPlayhead:
4486                 where = session->audible_frame();
4487                 break;
4488
4489         case EditAtSelectedMarker:
4490                 if (!selection->markers.empty()) {
4491                         bool is_start;
4492                         Location* loc = find_location_from_marker (selection->markers.front(), is_start);
4493                         if (loc) {
4494                                 if (is_start) {
4495                                         where =  loc->start();
4496                                 } else {
4497                                         where = loc->end();
4498                                 }
4499                                 break;
4500                         }
4501                 }
4502                 /* fallthru */
4503
4504         default:
4505         case EditAtMouse:
4506                 if (!mouse_frame (where, ignored)) {
4507                         /* XXX not right but what can we do ? */
4508                         return 0;
4509                 }
4510                 snap_to (where);
4511                 break;
4512         }
4513
4514         return where;
4515 }
4516
4517 void
4518 Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
4519 {
4520         if (!session) return;
4521
4522         begin_reversible_command (cmd);
4523
4524         Location* tll;
4525
4526         if ((tll = transport_loop_location()) == 0) {
4527                 Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoLoop);
4528                 XMLNode &before = session->locations()->get_state();
4529                 session->locations()->add (loc, true);
4530                 session->set_auto_loop_location (loc);
4531                 XMLNode &after = session->locations()->get_state();
4532                 session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
4533         } else {
4534                 XMLNode &before = tll->get_state();
4535                 tll->set_hidden (false, this);
4536                 tll->set (start, end);
4537                 XMLNode &after = tll->get_state();
4538                 session->add_command (new MementoCommand<Location>(*tll, &before, &after));
4539         }
4540
4541         commit_reversible_command ();
4542 }
4543
4544 void
4545 Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
4546 {
4547         if (!session) return;
4548
4549         begin_reversible_command (cmd);
4550
4551         Location* tpl;
4552
4553         if ((tpl = transport_punch_location()) == 0) {
4554                 Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoPunch);
4555                 XMLNode &before = session->locations()->get_state();
4556                 session->locations()->add (loc, true);
4557                 session->set_auto_loop_location (loc);
4558                 XMLNode &after = session->locations()->get_state();
4559                 session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
4560         }
4561         else {
4562                 XMLNode &before = tpl->get_state();
4563                 tpl->set_hidden (false, this);
4564                 tpl->set (start, end);
4565                 XMLNode &after = tpl->get_state();
4566                 session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
4567         }
4568
4569         commit_reversible_command ();
4570 }
4571
4572 /** Find regions which exist at a given time, and optionally on a given list of tracks.
4573  *  @param rs List to which found regions are added.
4574  *  @param where Time to look at.
4575  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
4576  */
4577 void
4578 Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
4579 {
4580         const TrackSelection* tracks;
4581
4582         if (ts.empty()) {
4583                 tracks = &track_views;
4584         } else {
4585                 tracks = &ts;
4586         }
4587
4588         for (TrackSelection::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4589                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4590                 if (rtv) {
4591                         boost::shared_ptr<Diskstream> ds;
4592                         boost::shared_ptr<Playlist> pl;
4593
4594                         if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
4595
4596                                 Playlist::RegionList* regions = pl->regions_at (
4597                                                 (nframes64_t) floor ( (double)where * ds->speed()));
4598
4599                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4600                                         RegionView* rv = rtv->view()->find_view (*i);
4601                                         if (rv) {
4602                                                 rs.add (rv);
4603                                         }
4604                                 }
4605
4606                                 delete regions;
4607                         }
4608                 }
4609         }
4610 }
4611
4612 void
4613 Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
4614 {
4615         const TrackSelection* tracks;
4616
4617         if (ts.empty()) {
4618                 tracks = &track_views;
4619         } else {
4620                 tracks = &ts;
4621         }
4622
4623         for (TrackSelection::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4624                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4625                 if (rtv) {
4626                         boost::shared_ptr<Diskstream> ds;
4627                         boost::shared_ptr<Playlist> pl;
4628
4629                         if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
4630
4631                                 Playlist::RegionList* regions = pl->regions_touched (
4632                                                 (nframes64_t) floor ( (double)where * ds->speed()), max_frames);
4633
4634                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4635
4636                                         RegionView* rv = rtv->view()->find_view (*i);
4637
4638                                         if (rv) {
4639                                                 rs.push_back (rv);
4640                                         }
4641                                 }
4642
4643                                 delete regions;
4644                         }
4645                 }
4646         }
4647 }
4648
4649 /** Find all regions which are either:
4650  *      - selected or
4651  *      - the entered_regionview (if allow_entered == true) or
4652  *      - under the preferred edit position AND on a selected track, or on a track
4653  *        which is in the same active edit-enable route group as a selected region (if allow_edit_position == true)
4654  *  @param rs Returned region list.
4655  *  @param allow_entered true to include the entered_regionview in the list.
4656  */
4657 void
4658 Editor::get_regions_for_action (RegionSelection& rs, bool allow_entered, bool allow_edit_position)
4659 {
4660         /* Start with selected regions */
4661         rs = selection->regions;
4662
4663         /* Add the entered_regionview, if requested */
4664         if (allow_entered && entered_regionview) {
4665                 rs.add (entered_regionview);
4666         }
4667
4668         if (allow_edit_position) {
4669
4670                 TrackSelection tracks = selection->tracks;
4671
4672                 /* tracks is currently the set of selected tracks; add any other tracks that
4673                  * have regions that are in the same edit-activated route group as one of
4674                  * our regions */
4675                 for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4676
4677                         RouteGroup* g = (*i)->get_time_axis_view().route_group ();
4678                         if (g && g->active_property (RouteGroup::Edit)) {
4679                                 tracks.add (axis_views_from_routes (g->route_list()));
4680                         }
4681                 }
4682
4683                 /* now find regions that are at the edit position on those tracks */
4684                 nframes64_t const where = get_preferred_edit_position ();
4685                 get_regions_at (rs, where, tracks);
4686         }
4687 }
4688
4689 void
4690 Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
4691 {
4692         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4693
4694                 RouteTimeAxisView* tatv;
4695
4696                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4697
4698                         boost::shared_ptr<Playlist> pl;
4699                         vector<boost::shared_ptr<Region> > results;
4700                         RegionView* marv;
4701                         boost::shared_ptr<Diskstream> ds;
4702
4703                         if ((ds = tatv->get_diskstream()) == 0) {
4704                                 /* bus */
4705                                 continue;
4706                         }
4707
4708                         if ((pl = (ds->playlist())) != 0) {
4709                                 pl->get_region_list_equivalent_regions (region, results);
4710                         }
4711
4712                         for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
4713                                 if ((marv = tatv->view()->find_view (*ir)) != 0) {
4714                                         regions.push_back (marv);
4715                                 }
4716                         }
4717
4718                 }
4719         }
4720 }
4721
4722 void
4723 Editor::show_rhythm_ferret ()
4724 {
4725         if (rhythm_ferret == 0) {
4726                 rhythm_ferret = new RhythmFerret(*this);
4727         }
4728
4729         rhythm_ferret->set_session (session);
4730         rhythm_ferret->show ();
4731         rhythm_ferret->present ();
4732 }
4733
4734 void
4735 Editor::show_bundle_manager ()
4736 {
4737         if (_bundle_manager == 0) {
4738                 _bundle_manager = new BundleManager (*session);
4739         }
4740
4741         _bundle_manager->show ();
4742 }
4743
4744 void
4745 Editor::show_global_port_matrix (ARDOUR::DataType t)
4746 {
4747         if (_global_port_matrix[t] == 0) {
4748                 _global_port_matrix[t] = new GlobalPortMatrixWindow (*session, t);
4749         }
4750
4751         _global_port_matrix[t]->show ();
4752 }
4753
4754 void
4755 Editor::first_idle ()
4756 {
4757         MessageDialog* dialog = 0;
4758
4759         if (track_views.size() > 1) {
4760                 dialog = new MessageDialog (*this,
4761                                             _("Please wait while Ardour loads visual data"),
4762                                             true,
4763                                             Gtk::MESSAGE_INFO,
4764                                             Gtk::BUTTONS_NONE);
4765                 dialog->present ();
4766                 ARDOUR_UI::instance()->flush_pending ();
4767         }
4768
4769         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
4770                 (*t)->first_idle();
4771         }
4772
4773         // first idle adds route children (automation tracks), so we need to redisplay here
4774         _routes->redisplay ();
4775
4776         delete dialog;
4777
4778         _have_idled = true;
4779 }
4780
4781 static gboolean
4782 _idle_resizer (gpointer arg)
4783 {
4784         return ((Editor*)arg)->idle_resize ();
4785 }
4786
4787 void
4788 Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
4789 {
4790         if (resize_idle_id < 0) {
4791                 resize_idle_id = g_idle_add (_idle_resizer, this);
4792                 _pending_resize_amount = 0;
4793         }
4794
4795         /* make a note of the smallest resulting height, so that we can clamp the
4796            lower limit at TimeAxisView::hSmall */
4797
4798         int32_t min_resulting = INT32_MAX;
4799
4800         _pending_resize_amount += h;
4801         _pending_resize_view = view;
4802
4803         min_resulting = min (min_resulting, int32_t (_pending_resize_view->current_height()) + _pending_resize_amount);
4804
4805         if (selection->tracks.contains (_pending_resize_view)) {
4806                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4807                         min_resulting = min (min_resulting, int32_t ((*i)->current_height()) + _pending_resize_amount);
4808                 }
4809         }
4810
4811         if (min_resulting < 0) {
4812                 min_resulting = 0;
4813         }
4814
4815         /* clamp */
4816         if (uint32_t (min_resulting) < TimeAxisView::hSmall) {
4817                 _pending_resize_amount += TimeAxisView::hSmall - min_resulting;
4818         }
4819 }
4820
4821 /** Handle pending resizing of tracks */
4822 bool
4823 Editor::idle_resize ()
4824 {
4825         _pending_resize_view->idle_resize (_pending_resize_view->current_height() + _pending_resize_amount);
4826
4827         if (dynamic_cast<AutomationTimeAxisView*> (_pending_resize_view) == 0 &&
4828             selection->tracks.contains (_pending_resize_view)) {
4829
4830                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4831                         if (*i != _pending_resize_view) {
4832                                 (*i)->idle_resize ((*i)->current_height() + _pending_resize_amount);
4833                         }
4834                 }
4835         }
4836
4837         flush_canvas ();
4838         _group_tabs->set_dirty ();
4839         resize_idle_id = -1;
4840
4841         return false;
4842 }
4843
4844 void
4845 Editor::located ()
4846 {
4847         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::located));
4848
4849         _pending_locate_request = false;
4850 }
4851
4852 void
4853 Editor::region_view_added (RegionView *)
4854 {
4855         _summary->set_dirty ();
4856 }
4857
4858 void
4859 Editor::streamview_height_changed ()
4860 {
4861         _summary->set_dirty ();
4862 }
4863
4864 TimeAxisView*
4865 Editor::axis_view_from_route (Route* r) const
4866 {
4867         TrackViewList::const_iterator j = track_views.begin ();
4868         while (j != track_views.end()) {
4869                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*j);
4870                 if (rtv && rtv->route().get() == r) {
4871                         return rtv;
4872                 }
4873                 ++j;
4874         }
4875
4876         return 0;
4877 }
4878
4879
4880 TrackSelection
4881 Editor::axis_views_from_routes (list<Route*> r) const
4882 {
4883         TrackSelection t;
4884
4885         for (list<Route*>::const_iterator i = r.begin(); i != r.end(); ++i) {
4886                 TimeAxisView* tv = axis_view_from_route (*i);
4887                 if (tv) {
4888                         t.push_back (tv);
4889                 }
4890         }
4891
4892         return t;
4893 }
4894
4895
4896 void
4897 Editor::handle_new_route (RouteList& routes)
4898 {
4899         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::handle_new_route), routes));
4900
4901         RouteTimeAxisView *rtv;
4902         list<RouteTimeAxisView*> new_views;
4903
4904         for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
4905                 boost::shared_ptr<Route> route = (*x);
4906
4907                 if (route->is_hidden()) {
4908                         continue;
4909                 }
4910
4911                 DataType dt = route->input()->default_type();
4912
4913                 if (dt == ARDOUR::DataType::AUDIO) {
4914                         rtv = new AudioTimeAxisView (*this, *session, route, *track_canvas);
4915                 } else if (dt == ARDOUR::DataType::MIDI) {
4916                         rtv = new MidiTimeAxisView (*this, *session, route, *track_canvas);
4917                 } else {
4918                         throw unknown_type();
4919                 }
4920
4921                 new_views.push_back (rtv);
4922                 track_views.push_back (rtv);
4923
4924                 rtv->effective_gain_display ();
4925
4926                 rtv->view()->RegionViewAdded.connect (mem_fun (*this, &Editor::region_view_added));
4927                 rtv->view()->HeightChanged.connect (mem_fun (*this, &Editor::streamview_height_changed));
4928
4929                 rtv->GoingAway.connect (bind (mem_fun(*this, &Editor::remove_route), rtv));
4930         }
4931
4932         _routes->routes_added (new_views);
4933
4934         if (show_editor_mixer_when_tracks_arrive) {
4935                 show_editor_mixer (true);
4936         }
4937
4938         editor_list_button.set_sensitive (true);
4939
4940         _summary->set_dirty ();
4941 }
4942
4943 void
4944 Editor::remove_route (TimeAxisView *tv)
4945 {
4946         ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::remove_route), tv));
4947
4948         TrackViewList::iterator i;
4949         boost::shared_ptr<Route> route;
4950         TimeAxisView* next_tv = 0;
4951
4952         if (tv == entered_track) {
4953                 entered_track = 0;
4954         }
4955
4956         if ((i = find (track_views.begin(), track_views.end(), tv)) != track_views.end()) {
4957
4958                i = track_views.erase (i);
4959
4960                if (track_views.empty()) {
4961                        next_tv = 0;
4962                } else if (i == track_views.end()) {
4963                        next_tv = track_views.front();
4964                } else {
4965                       next_tv = (*i);
4966                }
4967         }
4968
4969         if (current_mixer_strip && current_mixer_strip->route() == route) {
4970
4971                if (next_tv) {
4972                        set_selected_mixer_strip (*next_tv);
4973                } else {
4974                        /* make the editor mixer strip go away setting the
4975                         * button to inactive (which also unticks the menu option)
4976                         */
4977
4978                        ActionManager::uncheck_toggleaction ("<Actions>/Editor/show-editor-mixer");
4979                }
4980         }
4981 }
4982
4983 void
4984 Editor::hide_track_in_display (TimeAxisView& tv, bool /*temponly*/)
4985 {
4986         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4987
4988         if (rtv && current_mixer_strip && (rtv->route() == current_mixer_strip->route())) {
4989                 // this will hide the mixer strip
4990                 set_selected_mixer_strip (tv);
4991         }
4992
4993         _routes->hide_track_in_display (tv);
4994 }
4995
4996 bool
4997 Editor::sync_track_view_list_and_routes ()
4998 {
4999         track_views = TrackSelection (_routes->views ());
5000
5001         _summary->set_dirty ();
5002         _group_tabs->set_dirty ();
5003
5004         return false; // do not call again (until needed)
5005 }
5006
5007 void
5008 Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
5009 {
5010         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5011                 theslot (**i);
5012         }
5013 }
5014
5015 RouteTimeAxisView*
5016 Editor::get_route_view_by_id (PBD::ID& id)
5017 {
5018         RouteTimeAxisView* v;
5019
5020         for(TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5021                 if((v = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5022                         if(v->route()->id() == id) {
5023                                 return v;
5024                         }
5025                 }
5026         }
5027
5028         return 0;
5029 }
5030
5031 void
5032 Editor::fit_route_group (RouteGroup *g)
5033 {
5034         TrackSelection ts = axis_views_from_routes (g->route_list ());
5035         fit_tracks (ts);
5036 }
5037
5038 void
5039 Editor::consider_auditioning (boost::shared_ptr<Region> region)
5040 {
5041         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
5042
5043         if (r == 0) {
5044                 session->cancel_audition ();
5045                 return;
5046         }
5047
5048         if (session->is_auditioning()) {
5049                 session->cancel_audition ();
5050                 if (r == last_audition_region) {
5051                         return;
5052                 }
5053         }
5054
5055         session->audition_region (r);
5056         last_audition_region = r;
5057 }
5058
5059
5060 void
5061 Editor::hide_a_region (boost::shared_ptr<Region> r)
5062 {
5063         r->set_hidden (true);
5064 }
5065
5066 void
5067 Editor::remove_a_region (boost::shared_ptr<Region> r)
5068 {
5069         session->remove_region_from_region_list (r);
5070 }
5071
5072 void
5073 Editor::audition_region_from_region_list ()
5074 {
5075         _regions->selection_mapover (mem_fun (*this, &Editor::consider_auditioning));
5076 }
5077
5078 void
5079 Editor::hide_region_from_region_list ()
5080 {
5081         _regions->selection_mapover (mem_fun (*this, &Editor::hide_a_region));
5082 }
5083
5084 void
5085 Editor::start_step_editing ()
5086 {
5087         step_edit_connection = Glib::signal_timeout().connect (mem_fun (*this, &Editor::check_step_edit), 20);
5088 }
5089
5090 void
5091 Editor::stop_step_editing ()
5092 {
5093         step_edit_connection.disconnect ();
5094 }
5095
5096 bool
5097 Editor::check_step_edit ()
5098 {
5099         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5100                 MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (*i);
5101                 if (mtv) {
5102                         mtv->check_step_edit ();
5103                 }
5104         }
5105
5106         return true; // do it again, till we stop
5107 }