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_("Timecode Frames"),
 133         N_("Timecode Seconds"),
 134         N_("Timecode 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         , timecode_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         timecode_label.set_name ("EditorTimeButton");
 384         timecode_label.set_size_request (-1, (int)timebar_height);
 385         timecode_label.set_alignment (1.0, 0.5);
 386         timecode_label.set_padding (5,0);
 387         timecode_label.hide ();
 388         timecode_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->TimecodeOffsetChanged.connect (mem_fun(*this, &Editor::update_just_timecode)));
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::Timecode); // 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::timecode_snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
2568 {
2569         const nframes64_t one_timecode_second = (nframes64_t)(rint(session->timecode_frames_per_second()) * session->frames_per_timecode_frame());
2570         nframes64_t one_timecode_minute = (nframes64_t)(rint(session->timecode_frames_per_second()) * session->frames_per_timecode_frame() * 60);
2571
2572         switch (snap_type) {
2573         case SnapToTimecodeFrame:
2574                 if (((direction == 0) && (fmod((double)start, (double)session->frames_per_timecode_frame()) > (session->frames_per_timecode_frame() / 2))) || (direction > 0)) {
2575                         start = (nframes64_t) (ceil ((double) start / session->frames_per_timecode_frame()) * session->frames_per_timecode_frame());
2576                 } else {
2577                         start = (nframes64_t) (floor ((double) start / session->frames_per_timecode_frame()) *  session->frames_per_timecode_frame());
2578                 }
2579                 break;
2580
2581         case SnapToTimecodeSeconds:
2582                 if (session->timecode_offset_negative())
2583                 {
2584                         start += session->timecode_offset ();
2585                 } else {
2586                         start -= session->timecode_offset ();
2587                 }
2588                 if (((direction == 0) && (start % one_timecode_second > one_timecode_second / 2)) || direction > 0) {
2589                         start = (nframes64_t) ceil ((double) start / one_timecode_second) * one_timecode_second;
2590                 } else {
2591                         start = (nframes64_t) floor ((double) start / one_timecode_second) * one_timecode_second;
2592                 }
2593
2594                 if (session->timecode_offset_negative())
2595                 {
2596                         start -= session->timecode_offset ();
2597                 } else {
2598                         start += session->timecode_offset ();
2599                 }
2600                 break;
2601
2602         case SnapToTimecodeMinutes:
2603                 if (session->timecode_offset_negative())
2604                 {
2605                         start += session->timecode_offset ();
2606                 } else {
2607                         start -= session->timecode_offset ();
2608                 }
2609                 if (((direction == 0) && (start % one_timecode_minute > one_timecode_minute / 2)) || direction > 0) {
2610                         start = (nframes64_t) ceil ((double) start / one_timecode_minute) * one_timecode_minute;
2611                 } else {
2612                         start = (nframes64_t) floor ((double) start / one_timecode_minute) * one_timecode_minute;
2613                 }
2614                 if (session->timecode_offset_negative())
2615                 {
2616                         start -= session->timecode_offset ();
2617                 } else {
2618                         start += session->timecode_offset ();
2619                 }
2620                 break;
2621         default:
2622                 fatal << "Editor::smpte_snap_to_internal() called with non-timecode snap type!" << endmsg;
2623                 /*NOTREACHED*/
2624         }
2625 }
2626
2627 void
2628 Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
2629 {
2630         const nframes64_t one_second = session->frame_rate();
2631         const nframes64_t one_minute = session->frame_rate() * 60;
2632         nframes64_t presnap = start;
2633         nframes64_t before;
2634         nframes64_t after;
2635
2636         switch (snap_type) {
2637         case SnapToTimecodeFrame:
2638         case SnapToTimecodeSeconds:
2639         case SnapToTimecodeMinutes:
2640                 return timecode_snap_to_internal (start, direction, for_mark);
2641
2642         case SnapToCDFrame:
2643                 if (((direction == 0) && (start % (one_second/75) > (one_second/75) / 2)) || (direction > 0)) {
2644                         start = (nframes64_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
2645                 } else {
2646                         start = (nframes64_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
2647                 }
2648                 break;
2649
2650         case SnapToSeconds:
2651                 if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
2652                         start = (nframes64_t) ceil ((double) start / one_second) * one_second;
2653                 } else {
2654                         start = (nframes64_t) floor ((double) start / one_second) * one_second;
2655                 }
2656                 break;
2657
2658         case SnapToMinutes:
2659                 if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
2660                         start = (nframes64_t) ceil ((double) start / one_minute) * one_minute;
2661                 } else {
2662                         start = (nframes64_t) floor ((double) start / one_minute) * one_minute;
2663                 }
2664                 break;
2665
2666         case SnapToBar:
2667                 start = session->tempo_map().round_to_bar (start, direction);
2668                 break;
2669
2670         case SnapToBeat:
2671                 start = session->tempo_map().round_to_beat (start, direction);
2672                 break;
2673
2674         case SnapToAThirtysecondBeat:
2675                 start = session->tempo_map().round_to_beat_subdivision (start, 32, direction);
2676                 break;
2677
2678         case SnapToASixteenthBeat:
2679                 start = session->tempo_map().round_to_beat_subdivision (start, 16, direction);
2680                 break;
2681
2682         case SnapToAEighthBeat:
2683                 start = session->tempo_map().round_to_beat_subdivision (start, 8, direction);
2684                 break;
2685
2686         case SnapToAQuarterBeat:
2687                 start = session->tempo_map().round_to_beat_subdivision (start, 4, direction);
2688                 break;
2689
2690         case SnapToAThirdBeat:
2691                 start = session->tempo_map().round_to_beat_subdivision (start, 3, direction);
2692                 break;
2693
2694         case SnapToMark:
2695                 if (for_mark) {
2696                         return;
2697                 }
2698
2699                 session->locations()->marks_either_side (start, before, after);
2700
2701                 if (before == max_frames) {
2702                         start = after;
2703                 } else if (after == max_frames) {
2704                         start = before;
2705                 } else if (before != max_frames && after != max_frames) {
2706                         /* have before and after */
2707                         if ((start - before) < (after - start)) {
2708                                 start = before;
2709                         } else {
2710                                 start = after;
2711                         }
2712                 }
2713
2714                 break;
2715
2716         case SnapToRegionStart:
2717         case SnapToRegionEnd:
2718         case SnapToRegionSync:
2719         case SnapToRegionBoundary:
2720                 if (!region_boundary_cache.empty()) {
2721
2722                         vector<nframes64_t>::iterator prev = region_boundary_cache.end ();
2723                         vector<nframes64_t>::iterator next = region_boundary_cache.end ();
2724
2725                         if (direction > 0) {
2726                                 next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2727                         } else {
2728                                 next = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2729                         }
2730
2731                         if (next != region_boundary_cache.begin ()) {
2732                                 prev = next;
2733                                 prev--;
2734                         }
2735
2736                         nframes64_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
2737                         nframes64_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
2738
2739                         if (start > (p + n) / 2) {
2740                                 start = n;
2741                         } else {
2742                                 start = p;
2743                         }
2744                 }
2745                 break;
2746         }
2747
2748         switch (snap_mode) {
2749         case SnapNormal:
2750                 return;
2751
2752         case SnapMagnetic:
2753
2754                 if (presnap > start) {
2755                         if (presnap > (start + unit_to_frame(snap_threshold))) {
2756                                 start = presnap;
2757                         }
2758
2759                 } else if (presnap < start) {
2760                         if (presnap < (start - unit_to_frame(snap_threshold))) {
2761                                 start = presnap;
2762                         }
2763                 }
2764
2765         default:
2766                 /* handled at entry */
2767                 return;
2768
2769         }
2770 }
2771
2772
2773 void
2774 Editor::setup_toolbar ()
2775 {
2776         string pixmap_path;
2777
2778         /* Mode Buttons (tool selection) */
2779
2780         mouse_move_button.set_relief(Gtk::RELIEF_NONE);
2781         mouse_select_button.set_relief(Gtk::RELIEF_NONE);
2782         mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
2783         mouse_zoom_button.set_relief(Gtk::RELIEF_NONE);
2784         mouse_timefx_button.set_relief(Gtk::RELIEF_NONE);
2785         mouse_audition_button.set_relief(Gtk::RELIEF_NONE);
2786         // internal_edit_button.set_relief(Gtk::RELIEF_NONE);
2787
2788         HBox* mode_box = manage(new HBox);
2789         mode_box->set_border_width (2);
2790         mode_box->set_spacing(4);
2791         mouse_mode_button_box.set_spacing(1);
2792         mouse_mode_button_box.pack_start(mouse_move_button, true, true);
2793         if (!Profile->get_sae()) {
2794                 mouse_mode_button_box.pack_start(mouse_select_button, true, true);
2795         }
2796         mouse_mode_button_box.pack_start(mouse_zoom_button, true, true);
2797         if (!Profile->get_sae()) {
2798                 mouse_mode_button_box.pack_start(mouse_gain_button, true, true);
2799         }
2800         mouse_mode_button_box.pack_start(mouse_timefx_button, true, true);
2801         mouse_mode_button_box.pack_start(mouse_audition_button, true, true);
2802         mouse_mode_button_box.pack_start(internal_edit_button, true, true);
2803         mouse_mode_button_box.set_homogeneous(true);
2804
2805         vector<string> edit_mode_strings;
2806         edit_mode_strings.push_back (edit_mode_to_string (Slide));
2807         if (!Profile->get_sae()) {
2808                 edit_mode_strings.push_back (edit_mode_to_string (Splice));
2809         }
2810         edit_mode_strings.push_back (edit_mode_to_string (Lock));
2811
2812         edit_mode_selector.set_name ("EditModeSelector");
2813         set_popdown_strings (edit_mode_selector, edit_mode_strings, true);
2814         edit_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_mode_selection_done));
2815
2816         mode_box->pack_start(edit_mode_selector);
2817         mode_box->pack_start(mouse_mode_button_box);
2818
2819         mouse_mode_tearoff = manage (new TearOff (*mode_box));
2820         mouse_mode_tearoff->set_name ("MouseModeBase");
2821         mouse_mode_tearoff->tearoff_window().signal_key_press_event().connect (bind (sigc::ptr_fun (relay_key_press), &mouse_mode_tearoff->tearoff_window()), false);
2822
2823         if (Profile->get_sae()) {
2824                 mouse_mode_tearoff->set_can_be_torn_off (false);
2825         }
2826
2827         mouse_mode_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2828                                                   &mouse_mode_tearoff->tearoff_window()));
2829         mouse_mode_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2830                                                   &mouse_mode_tearoff->tearoff_window(), 1));
2831         mouse_mode_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2832                                                   &mouse_mode_tearoff->tearoff_window()));
2833         mouse_mode_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2834                                                    &mouse_mode_tearoff->tearoff_window(), 1));
2835
2836         mouse_move_button.set_mode (false);
2837         mouse_select_button.set_mode (false);
2838         mouse_gain_button.set_mode (false);
2839         mouse_zoom_button.set_mode (false);
2840         mouse_timefx_button.set_mode (false);
2841         mouse_audition_button.set_mode (false);
2842
2843         mouse_move_button.set_name ("MouseModeButton");
2844         mouse_select_button.set_name ("MouseModeButton");
2845         mouse_gain_button.set_name ("MouseModeButton");
2846         mouse_zoom_button.set_name ("MouseModeButton");
2847         mouse_timefx_button.set_name ("MouseModeButton");
2848         mouse_audition_button.set_name ("MouseModeButton");
2849
2850         internal_edit_button.set_name ("MouseModeButton");
2851
2852         mouse_move_button.unset_flags (CAN_FOCUS);
2853         mouse_select_button.unset_flags (CAN_FOCUS);
2854         mouse_gain_button.unset_flags (CAN_FOCUS);
2855         mouse_zoom_button.unset_flags (CAN_FOCUS);
2856         mouse_timefx_button.unset_flags (CAN_FOCUS);
2857         mouse_audition_button.unset_flags (CAN_FOCUS);
2858         internal_edit_button.unset_flags (CAN_FOCUS);
2859
2860         /* Zoom */
2861
2862         zoom_box.set_spacing (1);
2863         zoom_box.set_border_width (0);
2864
2865         zoom_in_button.set_name ("EditorTimeButton");
2866         zoom_in_button.set_size_request(-1,16);
2867         zoom_in_button.add (*(manage (new Image (::get_icon("zoom_in")))));
2868         zoom_in_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), false));
2869         ARDOUR_UI::instance()->tooltips().set_tip (zoom_in_button, _("Zoom In"));
2870
2871         zoom_out_button.set_name ("EditorTimeButton");
2872         zoom_out_button.set_size_request(-1,16);
2873         zoom_out_button.add (*(manage (new Image (::get_icon("zoom_out")))));
2874         zoom_out_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), true));
2875         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_button, _("Zoom Out"));
2876
2877         zoom_out_full_button.set_name ("EditorTimeButton");
2878         zoom_out_full_button.set_size_request(-1,16);
2879         zoom_out_full_button.add (*(manage (new Image (::get_icon("zoom_full")))));
2880         zoom_out_full_button.signal_clicked().connect (mem_fun(*this, &Editor::temporal_zoom_session));
2881         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to Session"));
2882
2883         zoom_focus_selector.set_name ("ZoomFocusSelector");
2884         set_popdown_strings (zoom_focus_selector, zoom_focus_strings, true);
2885         zoom_focus_selector.signal_changed().connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
2886         ARDOUR_UI::instance()->tooltips().set_tip (zoom_focus_selector, _("Zoom focus"));
2887
2888         zoom_box.pack_start (zoom_out_button, false, false);
2889         zoom_box.pack_start (zoom_in_button, false, false);
2890         zoom_box.pack_start (zoom_out_full_button, false, false);
2891
2892         /* Track zoom buttons */
2893         tav_expand_button.set_name ("TrackHeightButton");
2894         tav_expand_button.set_size_request(-1,20);
2895         tav_expand_button.add (*(manage (new Image (::get_icon("tav_exp")))));
2896         tav_expand_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::tav_zoom_step), true));
2897         ARDOUR_UI::instance()->tooltips().set_tip (tav_expand_button, _("Expand Tracks"));
2898
2899         tav_shrink_button.set_name ("TrackHeightButton");
2900         tav_shrink_button.set_size_request(-1,20);
2901         tav_shrink_button.add (*(manage (new Image (::get_icon("tav_shrink")))));
2902         tav_shrink_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::tav_zoom_step), false));
2903         ARDOUR_UI::instance()->tooltips().set_tip (tav_shrink_button, _("Shrink Tracks"));
2904
2905         track_zoom_box.set_spacing (1);
2906         track_zoom_box.set_border_width (0);
2907
2908         track_zoom_box.pack_start (tav_shrink_button, false, false);
2909         track_zoom_box.pack_start (tav_expand_button, false, false);
2910
2911         HBox* zbc = manage (new HBox);
2912         zbc->pack_start (zoom_focus_selector, PACK_SHRINK);
2913         zoom_vbox.pack_start (*zbc, PACK_SHRINK);
2914         zoom_vbox.pack_start (zoom_box, PACK_SHRINK);
2915         zoom_vbox.pack_start (track_zoom_box, PACK_SHRINK);
2916
2917         snap_box.set_spacing (1);
2918         snap_box.set_border_width (2);
2919
2920         snap_type_selector.set_name ("SnapTypeSelector");
2921         set_popdown_strings (snap_type_selector, snap_type_strings, true);
2922         snap_type_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_type_selection_done));
2923         ARDOUR_UI::instance()->tooltips().set_tip (snap_type_selector, _("Snap/Grid Units"));
2924
2925         snap_mode_selector.set_name ("SnapModeSelector");
2926         set_popdown_strings (snap_mode_selector, snap_mode_strings, true);
2927         snap_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_mode_selection_done));
2928         ARDOUR_UI::instance()->tooltips().set_tip (snap_mode_selector, _("Snap/Grid Mode"));
2929
2930         edit_point_selector.set_name ("EditPointSelector");
2931         set_popdown_strings (edit_point_selector, edit_point_strings, true);
2932         edit_point_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_point_selection_done));
2933         ARDOUR_UI::instance()->tooltips().set_tip (edit_point_selector, _("Edit point"));
2934
2935         snap_box.pack_start (edit_point_clock, false, false);
2936         snap_box.pack_start (snap_mode_selector, false, false);
2937         snap_box.pack_start (snap_type_selector, false, false);
2938         snap_box.pack_start (edit_point_selector, false, false);
2939
2940         /* Nudge */
2941
2942         HBox *nudge_box = manage (new HBox);
2943         nudge_box->set_spacing(1);
2944         nudge_box->set_border_width (2);
2945
2946         nudge_forward_button.signal_button_release_event().connect (mem_fun(*this, &Editor::nudge_forward_release), false);
2947         nudge_backward_button.signal_button_release_event().connect (mem_fun(*this, &Editor::nudge_backward_release), false);
2948
2949         nudge_box->pack_start (nudge_backward_button, false, false);
2950         nudge_box->pack_start (nudge_forward_button, false, false);
2951         nudge_box->pack_start (nudge_clock, false, false);
2952
2953
2954         /* Pack everything in... */
2955
2956         HBox* hbox = manage (new HBox);
2957         hbox->set_spacing(10);
2958
2959         tools_tearoff = manage (new TearOff (*hbox));
2960         tools_tearoff->set_name ("MouseModeBase");
2961         tools_tearoff->tearoff_window().signal_key_press_event().connect (bind (sigc::ptr_fun (relay_key_press), &tools_tearoff->tearoff_window()), false);
2962
2963         if (Profile->get_sae()) {
2964                 tools_tearoff->set_can_be_torn_off (false);
2965         }
2966
2967         tools_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2968                                              &tools_tearoff->tearoff_window()));
2969         tools_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2970                                              &tools_tearoff->tearoff_window(), 0));
2971         tools_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2972                                              &tools_tearoff->tearoff_window()));
2973         tools_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2974                                               &tools_tearoff->tearoff_window(), 0));
2975
2976         toolbar_hbox.set_spacing (10);
2977         toolbar_hbox.set_border_width (1);
2978
2979         toolbar_hbox.pack_start (*mouse_mode_tearoff, false, false);
2980         toolbar_hbox.pack_start (*tools_tearoff, false, false);
2981
2982         hbox->pack_start (snap_box, false, false);
2983         hbox->pack_start (*nudge_box, false, false);
2984         hbox->pack_start (panic_box, false, false);
2985
2986         hbox->show_all ();
2987
2988         toolbar_base.set_name ("ToolBarBase");
2989         toolbar_base.add (toolbar_hbox);
2990
2991         toolbar_frame.set_shadow_type (SHADOW_OUT);
2992         toolbar_frame.set_name ("BaseFrame");
2993         toolbar_frame.add (toolbar_base);
2994 }
2995
2996 void
2997 Editor::midi_panic ()
2998 {
2999         cerr << "MIDI panic\n";
3000
3001         if (session) {
3002                 session->midi_panic();
3003         }
3004 }
3005
3006 void
3007 Editor::setup_midi_toolbar ()
3008 {
3009         RefPtr<Action> act;
3010
3011         /* Midi sound notes */
3012         midi_sound_notes.add (*(manage (new Image (::get_icon("midi_sound_notes")))));
3013         midi_sound_notes.set_relief(Gtk::RELIEF_NONE);
3014         ARDOUR_UI::instance()->tooltips().set_tip (midi_sound_notes, _("Sound Notes"));
3015         midi_sound_notes.unset_flags (CAN_FOCUS);
3016
3017         /* Panic */
3018
3019         act = ActionManager::get_action (X_("MIDI"), X_("panic"));
3020         midi_panic_button.set_name("MidiPanicButton");
3021         act->connect_proxy (midi_panic_button);
3022
3023         panic_box.pack_start (midi_sound_notes , true, true);
3024         panic_box.pack_start (midi_panic_button, true, true);
3025 }
3026
3027 int
3028 Editor::convert_drop_to_paths (
3029                 vector<ustring>&                paths,
3030                 const RefPtr<Gdk::DragContext>& /*context*/,
3031                 gint                            /*x*/,
3032                 gint                            /*y*/,
3033                 const SelectionData&            data,
3034                 guint                           /*info*/,
3035                 guint                           /*time*/)
3036 {
3037         if (session == 0) {
3038                 return -1;
3039         }
3040
3041         vector<ustring> uris = data.get_uris();
3042
3043         if (uris.empty()) {
3044
3045                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
3046                    are actually URI lists. So do it by hand.
3047                 */
3048
3049                 if (data.get_target() != "text/plain") {
3050                         return -1;
3051                 }
3052
3053                 /* Parse the "uri-list" format that Nautilus provides,
3054                    where each pathname is delimited by \r\n.
3055
3056                    THERE MAY BE NO NULL TERMINATING CHAR!!!
3057                 */
3058
3059                 ustring txt = data.get_text();
3060                 const char* p;
3061                 const char* q;
3062
3063                 p = (const char *) malloc (txt.length() + 1);
3064                 txt.copy ((char *) p, txt.length(), 0);
3065                 ((char*)p)[txt.length()] = '\0';
3066
3067                 while (p)
3068                 {
3069                         if (*p != '#')
3070                         {
3071                                 while (g_ascii_isspace (*p))
3072                                         p++;
3073
3074                                 q = p;
3075                                 while (*q && (*q != '\n') && (*q != '\r')) {
3076                                         q++;
3077                                 }
3078
3079                                 if (q > p)
3080                                 {
3081                                         q--;
3082                                         while (q > p && g_ascii_isspace (*q))
3083                                                 q--;
3084
3085                                         if (q > p)
3086                                         {
3087                                                 uris.push_back (ustring (p, q - p + 1));
3088                                         }
3089                                 }
3090                         }
3091                         p = strchr (p, '\n');
3092                         if (p)
3093                                 p++;
3094                 }
3095
3096                 free ((void*)p);
3097
3098                 if (uris.empty()) {
3099                         return -1;
3100                 }
3101         }
3102
3103         for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
3104
3105                 if ((*i).substr (0,7) == "file://") {
3106
3107                         ustring p = *i;
3108                         PBD::url_decode (p);
3109
3110                         // scan forward past three slashes
3111
3112                         ustring::size_type slashcnt = 0;
3113                         ustring::size_type n = 0;
3114                         ustring::iterator x = p.begin();
3115
3116                         while (slashcnt < 3 && x != p.end()) {
3117                                 if ((*x) == '/') {
3118                                         slashcnt++;
3119                                 } else if (slashcnt == 3) {
3120                                         break;
3121                                 }
3122                                 ++n;
3123                                 ++x;
3124                         }
3125
3126                         if (slashcnt != 3 || x == p.end()) {
3127                                 error << _("malformed URL passed to drag-n-drop code") << endmsg;
3128                                 continue;
3129                         }
3130
3131                         paths.push_back (p.substr (n - 1));
3132                 }
3133         }
3134
3135         return 0;
3136 }
3137
3138 void
3139 Editor::new_tempo_section ()
3140
3141 {
3142 }
3143
3144 void
3145 Editor::map_transport_state ()
3146 {
3147         ENSURE_GUI_THREAD (mem_fun(*this, &Editor::map_transport_state));
3148
3149         if (session->transport_stopped()) {
3150                 have_pending_keyboard_selection = false;
3151         }
3152
3153         update_loop_range_view (true);
3154 }
3155
3156 /* UNDO/REDO */
3157
3158 Editor::State::State (PublicEditor const * e)
3159 {
3160         selection = new Selection (e);
3161 }
3162
3163 Editor::State::~State ()
3164 {
3165         delete selection;
3166 }
3167
3168 void
3169 Editor::store_state (State& state) const
3170 {
3171         *state.selection = *selection;
3172 }
3173
3174 void
3175 Editor::restore_state (State *state)
3176 {
3177         if (*selection == *state->selection) {
3178                 return;
3179         }
3180
3181         *selection = *state->selection;
3182         time_selection_changed ();
3183         region_selection_changed ();
3184
3185         /* XXX other selection change handlers? */
3186 }
3187
3188 void
3189 Editor::begin_reversible_command (string name)
3190 {
3191         if (session) {
3192                 before = &get_state();
3193                 session->begin_reversible_command (name);
3194         }
3195 }
3196
3197 void
3198 Editor::commit_reversible_command ()
3199 {
3200         if (session) {
3201                 session->commit_reversible_command (new MementoCommand<Editor>(*this, before, &get_state()));
3202         }
3203 }
3204
3205 void
3206 Editor::set_route_group_solo (Route& route, bool yn)
3207 {
3208         RouteGroup *route_group;
3209
3210         if ((route_group = route.route_group()) != 0) {
3211                 route_group->apply (&Route::set_solo, yn, this);
3212         } else {
3213                 route.set_solo (yn, this);
3214         }
3215 }
3216
3217 void
3218 Editor::set_route_group_mute (Route& route, bool yn)
3219 {
3220         RouteGroup *route_group = 0;
3221
3222         if ((route_group == route.route_group()) != 0) {
3223                 route_group->apply (&Route::set_mute, yn, this);
3224         } else {
3225                 route.set_mute (yn, this);
3226         }
3227 }
3228
3229 void
3230 Editor::history_changed ()
3231 {
3232         string label;
3233
3234         if (undo_action && session) {
3235                 if (session->undo_depth() == 0) {
3236                         label = _("Undo");
3237                 } else {
3238                         label = string_compose(_("Undo (%1)"), session->next_undo());
3239                 }
3240                 undo_action->property_label() = label;
3241         }
3242
3243         if (redo_action && session) {
3244                 if (session->redo_depth() == 0) {
3245                         label = _("Redo");
3246                 } else {
3247                         label = string_compose(_("Redo (%1)"), session->next_redo());
3248                 }
3249                 redo_action->property_label() = label;
3250         }
3251 }
3252
3253 void
3254 Editor::duplicate_dialog (bool with_dialog)
3255 {
3256         float times = 1.0f;
3257
3258         if (mouse_mode == MouseRange) {
3259                 if (selection->time.length() == 0) {
3260                         return;
3261                 }
3262         }
3263
3264         RegionSelection rs;
3265         get_regions_for_action (rs);
3266
3267         if (mouse_mode != MouseRange) {
3268
3269                 if (rs.empty()) {
3270                         return;
3271                 }
3272         }
3273
3274         if (with_dialog) {
3275
3276                 ArdourDialog win ("Duplicate");
3277                 Label  label (_("Number of Duplications:"));
3278                 Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
3279                 SpinButton spinner (adjustment, 0.0, 1);
3280                 HBox hbox;
3281
3282                 win.get_vbox()->set_spacing (12);
3283                 win.get_vbox()->pack_start (hbox);
3284                 hbox.set_border_width (6);
3285                 hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
3286
3287                 /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
3288                    place, visually. so do this by hand.
3289                 */
3290
3291                 hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
3292                 spinner.signal_activate().connect (sigc::bind (mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
3293                 spinner.grab_focus();
3294
3295                 hbox.show ();
3296                 label.show ();
3297                 spinner.show ();
3298
3299                 win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3300                 win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
3301                 win.set_default_response (RESPONSE_ACCEPT);
3302
3303                 win.set_position (WIN_POS_MOUSE);
3304
3305                 spinner.grab_focus ();
3306
3307                 switch (win.run ()) {
3308                 case RESPONSE_ACCEPT:
3309                         break;
3310                 default:
3311                         return;
3312                 }
3313
3314                 times = adjustment.get_value();
3315         }
3316
3317         if (mouse_mode == MouseRange) {
3318                 duplicate_selection (times);
3319         } else {
3320                 duplicate_some_regions (rs, times);
3321         }
3322 }
3323
3324 void
3325 Editor::show_verbose_canvas_cursor ()
3326 {
3327         verbose_canvas_cursor->raise_to_top();
3328         verbose_canvas_cursor->show();
3329         verbose_cursor_visible = true;
3330 }
3331
3332 void
3333 Editor::hide_verbose_canvas_cursor ()
3334 {
3335         verbose_canvas_cursor->hide();
3336         verbose_cursor_visible = false;
3337 }
3338
3339 double
3340 Editor::clamp_verbose_cursor_x (double x)
3341 {
3342         if (x < 0) {
3343                 x = 0;
3344         } else {
3345                 x = min (_canvas_width - 200.0, x);
3346         }
3347         return x;
3348 }
3349
3350 double
3351 Editor::clamp_verbose_cursor_y (double y)
3352 {
3353         if (y < canvas_timebars_vsize) {
3354                 y = canvas_timebars_vsize;
3355         } else {
3356                 y = min (_canvas_height - 50, y);
3357         }
3358         return y;
3359 }
3360
3361 void
3362 Editor::show_verbose_canvas_cursor_with (const string & txt)
3363 {
3364         verbose_canvas_cursor->property_text() = txt.c_str();
3365
3366         int x, y;
3367         double wx, wy;
3368
3369         track_canvas->get_pointer (x, y);
3370         track_canvas->window_to_world (x, y, wx, wy);
3371
3372         /* move it away from the mouse pointer to avoid an
3373            infinite loop of enter/leave events.
3374         */
3375
3376         wx += 20;
3377         wy += 20;
3378
3379         /* don't get too close to the edge */
3380         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (wx);
3381         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (wy);
3382
3383         show_verbose_canvas_cursor ();
3384 }
3385
3386 void
3387 Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
3388 {
3389         verbose_canvas_cursor->property_text() = txt.c_str();
3390         /* don't get too close to the edge */
3391         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (x);
3392         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (y);
3393 }
3394
3395 void
3396 Editor::set_verbose_canvas_cursor_text (const string & txt)
3397 {
3398         verbose_canvas_cursor->property_text() = txt.c_str();
3399 }
3400
3401 void
3402 Editor::set_edit_mode (EditMode m)
3403 {
3404         Config->set_edit_mode (m);
3405 }
3406
3407 void
3408 Editor::cycle_edit_mode ()
3409 {
3410         switch (Config->get_edit_mode()) {
3411         case Slide:
3412                 if (Profile->get_sae()) {
3413                         Config->set_edit_mode (Lock);
3414                 } else {
3415                         Config->set_edit_mode (Splice);
3416                 }
3417                 break;
3418         case Splice:
3419                 Config->set_edit_mode (Lock);
3420                 break;
3421         case Lock:
3422                 Config->set_edit_mode (Slide);
3423                 break;
3424         }
3425 }
3426
3427 void
3428 Editor::edit_mode_selection_done ()
3429 {
3430         if (session == 0) {
3431                 return;
3432         }
3433
3434         string choice = edit_mode_selector.get_active_text();
3435         EditMode mode = Slide;
3436
3437         if (choice == _("Splice Edit")) {
3438                 mode = Splice;
3439         } else if (choice == _("Slide Edit")) {
3440                 mode = Slide;
3441         } else if (choice == _("Lock Edit")) {
3442                 mode = Lock;
3443         }
3444
3445         Config->set_edit_mode (mode);
3446 }
3447
3448 void
3449 Editor::snap_type_selection_done ()
3450 {
3451         string choice = snap_type_selector.get_active_text();
3452         SnapType snaptype = SnapToBeat;
3453
3454         if (choice == _("Beats/3")) {
3455                 snaptype = SnapToAThirdBeat;
3456         } else if (choice == _("Beats/4")) {
3457                 snaptype = SnapToAQuarterBeat;
3458         } else if (choice == _("Beats/8")) {
3459                 snaptype = SnapToAEighthBeat;
3460         } else if (choice == _("Beats/16")) {
3461                 snaptype = SnapToASixteenthBeat;
3462         } else if (choice == _("Beats/32")) {
3463                 snaptype = SnapToAThirtysecondBeat;
3464         } else if (choice == _("Beats")) {
3465                 snaptype = SnapToBeat;
3466         } else if (choice == _("Bars")) {
3467                 snaptype = SnapToBar;
3468         } else if (choice == _("Marks")) {
3469                 snaptype = SnapToMark;
3470         } else if (choice == _("Region starts")) {
3471                 snaptype = SnapToRegionStart;
3472         } else if (choice == _("Region ends")) {
3473                 snaptype = SnapToRegionEnd;
3474         } else if (choice == _("Region bounds")) {
3475                 snaptype = SnapToRegionBoundary;
3476         } else if (choice == _("Region syncs")) {
3477                 snaptype = SnapToRegionSync;
3478         } else if (choice == _("CD Frames")) {
3479                 snaptype = SnapToCDFrame;
3480         } else if (choice == _("Timecode Frames")) {
3481                 snaptype = SnapToTimecodeFrame;
3482         } else if (choice == _("Timecode Seconds")) {
3483                 snaptype = SnapToTimecodeSeconds;
3484         } else if (choice == _("Timecode Minutes")) {
3485                 snaptype = SnapToTimecodeMinutes;
3486         } else if (choice == _("Seconds")) {
3487                 snaptype = SnapToSeconds;
3488         } else if (choice == _("Minutes")) {
3489                 snaptype = SnapToMinutes;
3490         }
3491
3492         RefPtr<RadioAction> ract = snap_type_action (snaptype);
3493         if (ract) {
3494                 ract->set_active ();
3495         }
3496 }
3497
3498 void
3499 Editor::snap_mode_selection_done ()
3500 {
3501         string choice = snap_mode_selector.get_active_text();
3502         SnapMode mode = SnapNormal;
3503
3504         if (choice == _("No Grid")) {
3505                 mode = SnapOff;
3506         } else if (choice == _("Grid")) {
3507                 mode = SnapNormal;
3508         } else if (choice == _("Magnetic")) {
3509                 mode = SnapMagnetic;
3510         }
3511
3512         RefPtr<RadioAction> ract = snap_mode_action (mode);
3513
3514         if (ract) {
3515                 ract->set_active (true);
3516         }
3517 }
3518
3519 void
3520 Editor::cycle_edit_point (bool with_marker)
3521 {
3522         switch (_edit_point) {
3523         case EditAtMouse:
3524                 set_edit_point_preference (EditAtPlayhead);
3525                 break;
3526         case EditAtPlayhead:
3527                 if (with_marker) {
3528                         set_edit_point_preference (EditAtSelectedMarker);
3529                 } else {
3530                         set_edit_point_preference (EditAtMouse);
3531                 }
3532                 break;
3533         case EditAtSelectedMarker:
3534                 set_edit_point_preference (EditAtMouse);
3535                 break;
3536         }
3537 }
3538
3539 void
3540 Editor::edit_point_selection_done ()
3541 {
3542         string choice = edit_point_selector.get_active_text();
3543         EditPoint ep = EditAtSelectedMarker;
3544
3545         if (choice == _("Marker")) {
3546                 set_edit_point_preference (EditAtSelectedMarker);
3547         } else if (choice == _("Playhead")) {
3548                 set_edit_point_preference (EditAtPlayhead);
3549         } else {
3550                 set_edit_point_preference (EditAtMouse);
3551         }
3552
3553         RefPtr<RadioAction> ract = edit_point_action (ep);
3554
3555         if (ract) {
3556                 ract->set_active (true);
3557         }
3558 }
3559
3560 void
3561 Editor::zoom_focus_selection_done ()
3562 {
3563         string choice = zoom_focus_selector.get_active_text();
3564         ZoomFocus focus_type = ZoomFocusLeft;
3565
3566         if (choice == _("Left")) {
3567                 focus_type = ZoomFocusLeft;
3568         } else if (choice == _("Right")) {
3569                 focus_type = ZoomFocusRight;
3570         } else if (choice == _("Center")) {
3571                 focus_type = ZoomFocusCenter;
3572         } else if (choice == _("Play")) {
3573                 focus_type = ZoomFocusPlayhead;
3574         } else if (choice == _("Edit")) {
3575                 focus_type = ZoomFocusEdit;
3576         } else if (choice == _("Active Mark")) {
3577                 focus_type = ZoomFocusEdit;
3578         } else if (choice == _("Active Mark")) {
3579                 focus_type = ZoomFocusEdit;
3580         } else {
3581                 focus_type = ZoomFocusMouse;
3582         }
3583
3584         RefPtr<RadioAction> ract = zoom_focus_action (focus_type);
3585
3586         if (ract) {
3587                 ract->set_active ();
3588         }
3589 }
3590
3591 gint
3592 Editor::edit_controls_button_release (GdkEventButton* ev)
3593 {
3594         if (Keyboard::is_context_menu_event (ev)) {
3595                 ARDOUR_UI::instance()->add_route (this);
3596         }
3597         return TRUE;
3598 }
3599
3600 gint
3601 Editor::mouse_select_button_release (GdkEventButton* ev)
3602 {
3603         /* this handles just right-clicks */
3604
3605         if (ev->button != 3) {
3606                 return false;
3607         }
3608
3609         return true;
3610 }
3611
3612 Editor::TrackViewList *
3613 Editor::get_valid_views (TimeAxisView* track, RouteGroup* group)
3614 {
3615         TrackViewList::iterator i;
3616
3617         TrackViewList* v = new TrackViewList;
3618
3619         if (track == 0 && group == 0) {
3620
3621                 /* all views */
3622
3623                 for (i = track_views.begin(); i != track_views.end (); ++i) {
3624                         v->push_back (*i);
3625                 }
3626
3627         } else if ((track != 0 && group == 0) || (track != 0 && group != 0 && !group->active_property (RouteGroup::Select))) {
3628
3629                 /* just the view for this track
3630                  */
3631
3632                 v->push_back (track);
3633
3634         } else {
3635
3636                 /* views for all tracks in the route group */
3637
3638                 for (i = track_views.begin(); i != track_views.end (); ++i) {
3639
3640                         if (group == 0 || ((*i)->route_group() == group && group->active_property (RouteGroup::Select))) {
3641                                 v->push_back (*i);
3642                         }
3643                 }
3644         }
3645
3646         return v;
3647 }
3648
3649 void
3650 Editor::set_zoom_focus (ZoomFocus f)
3651 {
3652         string str = zoom_focus_strings[(int)f];
3653
3654         if (str != zoom_focus_selector.get_active_text()) {
3655                 zoom_focus_selector.set_active_text (str);
3656         }
3657
3658         if (zoom_focus != f) {
3659                 zoom_focus = f;
3660
3661                 ZoomFocusChanged (); /* EMIT_SIGNAL */
3662
3663                 instant_save ();
3664         }
3665 }
3666
3667 void
3668 Editor::ensure_float (Window& win)
3669 {
3670         win.set_transient_for (*this);
3671 }
3672
3673 void
3674 Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
3675 {
3676         /* recover or initialize pane positions. do this here rather than earlier because
3677            we don't want the positions to change the child allocations, which they seem to do.
3678          */
3679
3680         int pos;
3681         XMLProperty* prop;
3682         char buf[32];
3683         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
3684         int width, height;
3685         static int32_t done;
3686         XMLNode* geometry;
3687
3688         width = default_width;
3689         height = default_height;
3690
3691         if ((geometry = find_named_node (*node, "geometry")) != 0) {
3692
3693                 if ((prop = geometry->property ("x_size")) == 0) {
3694                         prop = geometry->property ("x-size");
3695                 }
3696                 if (prop) {
3697                         width = atoi (prop->value());
3698                 }
3699                 if ((prop = geometry->property ("y_size")) == 0) {
3700                         prop = geometry->property ("y-size");
3701                 }
3702                 if (prop) {
3703                         height = atoi (prop->value());
3704                 }
3705         }
3706
3707         if (which == static_cast<Paned*> (&edit_pane)) {
3708
3709                 if (done) {
3710                         return;
3711                 }
3712
3713                 if (!geometry || (prop = geometry->property ("edit-pane-pos")) == 0) {
3714                         /* initial allocation is 90% to canvas, 10% to notebook */
3715                         pos = (int) floor (alloc.get_width() * 0.90f);
3716                         snprintf (buf, sizeof(buf), "%d", pos);
3717                 } else {
3718                         pos = atoi (prop->value());
3719                 }
3720
3721                 if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
3722                         edit_pane.set_position (pos);
3723                         pre_maximal_pane_position = pos;
3724                 }
3725         }
3726 }
3727
3728 void
3729 Editor::detach_tearoff (Box* /*b*/, Window* /*w*/)
3730 {
3731         cerr << "remove tearoff\n";
3732
3733         if (tools_tearoff->torn_off() &&
3734             mouse_mode_tearoff->torn_off()) {
3735                 top_hbox.remove (toolbar_frame);
3736         }
3737 }
3738
3739 void
3740 Editor::reattach_tearoff (Box* /*b*/, Window* /*w*/, int32_t /*n*/)
3741 {
3742         cerr << "reattach tearoff\n";
3743         if (toolbar_frame.get_parent() == 0) {
3744                 top_hbox.pack_end (toolbar_frame);
3745         }
3746 }
3747
3748 void
3749 Editor::set_show_measures (bool yn)
3750 {
3751         if (_show_measures != yn) {
3752                 hide_measures ();
3753
3754                 if ((_show_measures = yn) == true) {
3755                         if (tempo_lines)
3756                                 tempo_lines->show();
3757                         draw_measures ();
3758                 }
3759                 instant_save ();
3760         }
3761 }
3762
3763 void
3764 Editor::toggle_follow_playhead ()
3765 {
3766         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3767         if (act) {
3768                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3769                 set_follow_playhead (tact->get_active());
3770         }
3771 }
3772
3773 void
3774 Editor::set_follow_playhead (bool yn)
3775 {
3776         if (_follow_playhead != yn) {
3777                 if ((_follow_playhead = yn) == true) {
3778                         /* catch up */
3779                         update_current_screen ();
3780                 }
3781                 instant_save ();
3782         }
3783 }
3784
3785 void
3786 Editor::toggle_xfade_active (boost::weak_ptr<Crossfade> wxfade)
3787 {
3788         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3789         if (xfade) {
3790                 xfade->set_active (!xfade->active());
3791         }
3792 }
3793
3794 void
3795 Editor::toggle_xfade_length (boost::weak_ptr<Crossfade> wxfade)
3796 {
3797         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3798         if (xfade) {
3799                 xfade->set_follow_overlap (!xfade->following_overlap());
3800         }
3801 }
3802
3803 void
3804 Editor::edit_xfade (boost::weak_ptr<Crossfade> wxfade)
3805 {
3806         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3807
3808         if (!xfade) {
3809                 return;
3810         }
3811
3812         CrossfadeEditor cew (*session, xfade, xfade->fade_in().get_min_y(), 1.0);
3813
3814         ensure_float (cew);
3815
3816         switch (cew.run ()) {
3817         case RESPONSE_ACCEPT:
3818                 break;
3819         default:
3820                 return;
3821         }
3822
3823         cew.apply ();
3824         xfade->StateChanged (Change (~0));
3825 }
3826
3827 PlaylistSelector&
3828 Editor::playlist_selector () const
3829 {
3830         return *_playlist_selector;
3831 }
3832
3833 Evoral::MusicalTime
3834 Editor::get_grid_type_as_beats (bool& success, nframes64_t position)
3835 {
3836         success = true;
3837
3838         switch (snap_type) {
3839         case SnapToBeat:
3840                 return 1.0;
3841                 break;
3842
3843         case SnapToAThirtysecondBeat:
3844                 return 1.0/32.0;
3845                 break;
3846
3847         case SnapToASixteenthBeat:
3848                 return 1.0/16.0;
3849                 break;
3850
3851         case SnapToAEighthBeat:
3852                 return 1.0/8.0;
3853                 break;
3854
3855         case SnapToAQuarterBeat:
3856                 return 1.0/4.0;
3857                 break;
3858
3859         case SnapToAThirdBeat:
3860                 return 1.0/3.0;
3861                 break;
3862
3863         case SnapToBar:
3864                 if (session) {
3865                         return session->tempo_map().meter_at (position).beats_per_bar();
3866                 }
3867                 break;
3868
3869         case SnapToCDFrame:
3870         case SnapToTimecodeFrame:
3871         case SnapToTimecodeSeconds:
3872         case SnapToTimecodeMinutes:
3873         case SnapToSeconds:
3874         case SnapToMinutes:
3875         case SnapToRegionStart:
3876         case SnapToRegionEnd:
3877         case SnapToRegionSync:
3878         case SnapToRegionBoundary:
3879         default:
3880                 success = false;
3881                 break;
3882         }
3883
3884         return 0.0;
3885 }
3886
3887 nframes64_t
3888 Editor::get_nudge_distance (nframes64_t pos, nframes64_t& next)
3889 {
3890         nframes64_t ret;
3891
3892         ret = nudge_clock.current_duration (pos);
3893         next = ret + 1; /* XXXX fix me */
3894
3895         return ret;
3896 }
3897
3898 void
3899 Editor::end_location_changed (Location* location)
3900 {
3901         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
3902         //reset_scrolling_region ();
3903         nframes64_t session_span = location->start() + (nframes64_t) floorf (current_page_frames() * 0.10f);
3904         horizontal_adjustment.set_upper (session_span / frames_per_unit);
3905 }
3906
3907 int
3908 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
3909 {
3910         ArdourDialog dialog ("playlist deletion dialog");
3911         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
3912                                         "If left alone, no audio files used by it will be cleaned.\n"
3913                                         "If deleted, audio files used by it alone by will cleaned."),
3914                                       pl->name()));
3915
3916         dialog.set_position (WIN_POS_CENTER);
3917         dialog.get_vbox()->pack_start (label);
3918
3919         label.show ();
3920
3921         dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
3922         dialog.add_button (_("Keep playlist"), RESPONSE_REJECT);
3923         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
3924
3925         switch (dialog.run ()) {
3926         case RESPONSE_ACCEPT:
3927                 /* delete the playlist */
3928                 return 0;
3929                 break;
3930
3931         case RESPONSE_REJECT:
3932                 /* keep the playlist */
3933                 return 1;
3934                 break;
3935
3936         default:
3937                 break;
3938         }
3939
3940         return -1;
3941 }
3942
3943 bool
3944 Editor::audio_region_selection_covers (nframes64_t where)
3945 {
3946         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
3947                 if ((*a)->region()->covers (where)) {
3948                         return true;
3949                 }
3950         }
3951
3952         return false;
3953 }
3954
3955 void
3956 Editor::prepare_for_cleanup ()
3957 {
3958         cut_buffer->clear_regions ();
3959         cut_buffer->clear_playlists ();
3960
3961         selection->clear_regions ();
3962         selection->clear_playlists ();
3963
3964         _regions->suspend_redisplay ();
3965 }
3966
3967 void
3968 Editor::finish_cleanup ()
3969 {
3970         _regions->resume_redisplay ();
3971 }
3972
3973 Location*
3974 Editor::transport_loop_location()
3975 {
3976         if (session) {
3977                 return session->locations()->auto_loop_location();
3978         } else {
3979                 return 0;
3980         }
3981 }
3982
3983 Location*
3984 Editor::transport_punch_location()
3985 {
3986         if (session) {
3987                 return session->locations()->auto_punch_location();
3988         } else {
3989                 return 0;
3990         }
3991 }
3992
3993 bool
3994 Editor::control_layout_scroll (GdkEventScroll* ev)
3995 {
3996         switch (ev->direction) {
3997         case GDK_SCROLL_UP:
3998                 scroll_tracks_up_line ();
3999                 return true;
4000                 break;
4001
4002         case GDK_SCROLL_DOWN:
4003                 scroll_tracks_down_line ();
4004                 return true;
4005
4006         default:
4007                 /* no left/right handling yet */
4008                 break;
4009         }
4010
4011         return false;
4012 }
4013
4014 void
4015 Editor::session_state_saved (string snap_name)
4016 {
4017         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::session_state_saved), snap_name));
4018
4019         _snapshots->redisplay ();
4020 }
4021
4022 void
4023 Editor::maximise_editing_space ()
4024 {
4025         mouse_mode_tearoff->set_visible (false);
4026         tools_tearoff->set_visible (false);
4027
4028         pre_maximal_pane_position = edit_pane.get_position();
4029         pre_maximal_editor_width = this->get_width();
4030
4031         if(post_maximal_pane_position == 0) {
4032                 post_maximal_pane_position = edit_pane.get_width();
4033         }
4034
4035         fullscreen();
4036
4037         if(post_maximal_editor_width) {
4038                 edit_pane.set_position (post_maximal_pane_position -
4039                         abs(post_maximal_editor_width - pre_maximal_editor_width));
4040         } else {
4041                 edit_pane.set_position (post_maximal_pane_position);
4042         }
4043 }
4044
4045 void
4046 Editor::restore_editing_space ()
4047 {
4048         // user changed width of pane during fullscreen
4049
4050         if(post_maximal_pane_position != edit_pane.get_position()) {
4051                 post_maximal_pane_position = edit_pane.get_position();
4052         }
4053
4054         unfullscreen();
4055
4056         mouse_mode_tearoff->set_visible (true);
4057         tools_tearoff->set_visible (true);
4058         post_maximal_editor_width = this->get_width();
4059
4060         edit_pane.set_position (pre_maximal_pane_position + abs(this->get_width() - pre_maximal_editor_width));
4061 }
4062
4063 /**
4064  *  Make new playlists for a given track and also any others that belong
4065  *  to the same active route group with the `edit' property.
4066  *  @param v Track.
4067  */
4068
4069 void
4070 Editor::new_playlists (TimeAxisView* v)
4071 {
4072         begin_reversible_command (_("new playlists"));
4073         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4074         session->get_playlists(playlists);
4075         mapover_tracks (bind (mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, RouteGroup::Edit);
4076         commit_reversible_command ();
4077 }
4078
4079 /**
4080  *  Use a copy of the current playlist for a given track and also any others that belong
4081  *  to the same active route group with the `edit' property.
4082  *  @param v Track.
4083  */
4084
4085 void
4086 Editor::copy_playlists (TimeAxisView* v)
4087 {
4088         begin_reversible_command (_("copy playlists"));
4089         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4090         session->get_playlists(playlists);
4091         mapover_tracks (bind (mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, RouteGroup::Edit);
4092         commit_reversible_command ();
4093 }
4094
4095 /** Clear the current playlist for a given track and also any others that belong
4096  *  to the same active route group with the `edit' property.
4097  *  @param v Track.
4098  */
4099
4100 void
4101 Editor::clear_playlists (TimeAxisView* v)
4102 {
4103         begin_reversible_command (_("clear playlists"));
4104         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4105         session->get_playlists(playlists);
4106         mapover_tracks (mem_fun (*this, &Editor::mapped_clear_playlist), v, RouteGroup::Edit);
4107         commit_reversible_command ();
4108 }
4109
4110 void
4111 Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4112 {
4113         atv.use_new_playlist (sz > 1 ? false : true, playlists);
4114 }
4115
4116 void
4117 Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4118 {
4119         atv.use_copy_playlist (sz > 1 ? false : true, playlists);
4120 }
4121
4122 void
4123 Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t /*sz*/)
4124 {
4125         atv.clear_playlist ();
4126 }
4127
4128 bool
4129 Editor::on_key_press_event (GdkEventKey* ev)
4130 {
4131         return key_press_focus_accelerator_handler (*this, ev);
4132 }
4133
4134 bool
4135 Editor::on_key_release_event (GdkEventKey* ev)
4136 {
4137         return Gtk::Window::on_key_release_event (ev);
4138         // return key_press_focus_accelerator_handler (*this, ev);
4139 }
4140
4141 void
4142 Editor::reset_x_origin (nframes64_t frame)
4143 {
4144         //cerr << "resetting x origin" << endl;
4145         queue_visual_change (frame);
4146 }
4147
4148 void
4149 Editor::reset_y_origin (double y)
4150 {
4151         queue_visual_change_y (y);
4152 }
4153
4154 void
4155 Editor::reset_zoom (double fpu)
4156 {
4157         queue_visual_change (fpu);
4158 }
4159
4160 void
4161 Editor::reposition_and_zoom (nframes64_t frame, double fpu)
4162 {
4163         //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
4164         reset_x_origin (frame);
4165         reset_zoom (fpu);
4166
4167         if (!no_save_visual) {
4168                 undo_visual_stack.push_back (current_visual_state(false));
4169         }
4170 }
4171
4172 Editor::VisualState*
4173 Editor::current_visual_state (bool with_tracks)
4174 {
4175         VisualState* vs = new VisualState;
4176         vs->y_position = vertical_adjustment.get_value();
4177         vs->frames_per_unit = frames_per_unit;
4178         vs->leftmost_frame = leftmost_frame;
4179         vs->zoom_focus = zoom_focus;
4180
4181         if (with_tracks) {
4182                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4183                         vs->track_states.push_back (TAVState ((*i), &(*i)->get_state()));
4184                 }
4185         }
4186
4187         return vs;
4188 }
4189
4190 void
4191 Editor::undo_visual_state ()
4192 {
4193         if (undo_visual_stack.empty()) {
4194                 return;
4195         }
4196
4197         VisualState* vs = undo_visual_stack.back();
4198         undo_visual_stack.pop_back();
4199         use_visual_state (*vs);
4200         redo_visual_stack.push_back (vs);
4201 }
4202
4203 void
4204 Editor::redo_visual_state ()
4205 {
4206         if (redo_visual_stack.empty()) {
4207                 return;
4208         }
4209
4210         VisualState* vs = redo_visual_stack.back();
4211         redo_visual_stack.pop_back();
4212         use_visual_state (*vs);
4213         undo_visual_stack.push_back (vs);
4214 }
4215
4216 void
4217 Editor::swap_visual_state ()
4218 {
4219         if (undo_visual_stack.empty()) {
4220                 redo_visual_state ();
4221         } else {
4222                 undo_visual_state ();
4223         }
4224 }
4225
4226 void
4227 Editor::use_visual_state (VisualState& vs)
4228 {
4229         no_save_visual = true;
4230
4231         _routes->suspend_redisplay ();
4232
4233         vertical_adjustment.set_value (vs.y_position);
4234
4235         set_zoom_focus (vs.zoom_focus);
4236         reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
4237
4238         for (list<TAVState>::iterator i = vs.track_states.begin(); i != vs.track_states.end(); ++i) {
4239                 TrackViewList::iterator t;
4240
4241                 /* check if the track still exists - it could have been deleted */
4242
4243                 if ((t = find (track_views.begin(), track_views.end(), i->first)) != track_views.end()) {
4244                         (*t)->set_state (*(i->second), Stateful::loading_state_version);
4245                 }
4246         }
4247
4248
4249         if (!vs.track_states.empty()) {
4250                 _routes->update_visibility ();
4251         }
4252
4253         _routes->resume_redisplay ();
4254
4255         no_save_visual = false;
4256 }
4257
4258 void
4259 Editor::set_frames_per_unit (double fpu)
4260 {
4261         /* this is the core function that controls the zoom level of the canvas. it is called
4262            whenever one or more calls are made to reset_zoom(). it executes in an idle handler.
4263         */
4264
4265         if (fpu == frames_per_unit) {
4266                 return;
4267         }
4268
4269         if (fpu < 2.0) {
4270                 fpu = 2.0;
4271         }
4272
4273
4274         /* don't allow zooms that fit more than the maximum number
4275            of frames into an 800 pixel wide space.
4276         */
4277
4278         if (max_frames / fpu < 800.0) {
4279                 return;
4280         }
4281
4282         if (tempo_lines)
4283                 tempo_lines->tempo_map_changed();
4284
4285         frames_per_unit = fpu;
4286         post_zoom ();
4287 }
4288
4289 void
4290 Editor::post_zoom ()
4291 {
4292         nframes64_t cef = 0;
4293
4294         // convert fpu to frame count
4295
4296         nframes64_t frames = (nframes64_t) floor (frames_per_unit * _canvas_width);
4297
4298         if (frames_per_unit != zoom_range_clock.current_duration()) {
4299                 zoom_range_clock.set (frames);
4300         }
4301
4302         if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
4303                 if (!selection->tracks.empty()) {
4304                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4305                                 (*i)->reshow_selection (selection->time);
4306                         }
4307                 } else {
4308                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4309                                 (*i)->reshow_selection (selection->time);
4310                         }
4311                 }
4312         }
4313
4314         leftmost_frame = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
4315
4316         ZoomChanged (); /* EMIT_SIGNAL */
4317
4318         reset_hscrollbar_stepping ();
4319
4320         if (session) {
4321                 cef = session->current_end_frame() + (current_page_frames() / 10);// Add a little extra so we can see the end marker
4322         }
4323         horizontal_adjustment.set_upper (cef / frames_per_unit);
4324
4325         //reset_scrolling_region ();
4326
4327         if (playhead_cursor) {
4328                 playhead_cursor->set_position (playhead_cursor->current_frame);
4329         }
4330
4331         refresh_location_display();
4332         _summary->set_overlays_dirty ();
4333
4334         instant_save ();
4335 }
4336
4337 void
4338 Editor::queue_visual_change (nframes64_t where)
4339 {
4340         pending_visual_change.add (VisualChange::TimeOrigin);
4341
4342         /* if we're moving beyond the end, make sure the upper limit of the horizontal adjustment
4343            can reach.
4344         */
4345
4346         if (where > session->current_end_frame()) {
4347                 horizontal_adjustment.set_upper ((where + current_page_frames()) / frames_per_unit);
4348         }
4349
4350         pending_visual_change.time_origin = where;
4351
4352         ensure_visual_change_idle_handler ();
4353 }
4354
4355 void
4356 Editor::queue_visual_change (double fpu)
4357 {
4358         pending_visual_change.add (VisualChange::ZoomLevel);
4359         pending_visual_change.frames_per_unit = fpu;
4360
4361         ensure_visual_change_idle_handler ();
4362
4363 }
4364
4365 void
4366 Editor::queue_visual_change_y (double y)
4367 {
4368         pending_visual_change.add (VisualChange::YOrigin);
4369         pending_visual_change.y_origin = y;
4370
4371         ensure_visual_change_idle_handler ();
4372 }
4373
4374 void
4375 Editor::ensure_visual_change_idle_handler ()
4376 {
4377         if (pending_visual_change.idle_handler_id < 0) {
4378                 pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
4379         }
4380 }
4381
4382 int
4383 Editor::_idle_visual_changer (void* arg)
4384 {
4385         return static_cast<Editor*>(arg)->idle_visual_changer ();
4386 }
4387
4388 int
4389 Editor::idle_visual_changer ()
4390 {
4391         VisualChange::Type p = pending_visual_change.pending;
4392         pending_visual_change.pending = (VisualChange::Type) 0;
4393
4394 #ifdef FIX_THIS_FOR_V3
4395         double last_time_origin = horizontal_adjustment.get_value();
4396 #endif
4397
4398         if (p & VisualChange::ZoomLevel) {
4399                 set_frames_per_unit (pending_visual_change.frames_per_unit);
4400
4401                 compute_fixed_ruler_scale ();
4402                 compute_current_bbt_points(pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4403                 compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4404                 update_tempo_based_rulers ();
4405         }
4406         if (p & VisualChange::TimeOrigin) {
4407                 horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
4408         }
4409         if (p & VisualChange::YOrigin) {
4410                 vertical_adjustment.set_value (pending_visual_change.y_origin);
4411         }
4412
4413         nframes64_t csf=0, cef=0;
4414         nframes64_t current_time_origin = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
4415
4416         if (session) {
4417                 csf = session->current_start_frame();
4418                 cef = session->current_end_frame();
4419         }
4420
4421         /* if we seek beyond the current end of the canvas, move the end */
4422
4423 #ifdef FIX_THIS_FOR_V3
4424         if (last_time_origin == horizontal_adjustment.get_value() ) {
4425                 /* changed signal not emitted */
4426                 update_fixed_rulers ();
4427                 redisplay_tempo (true);
4428         }
4429 #endif
4430
4431         if (current_time_origin != pending_visual_change.time_origin) {
4432                 cef += current_page_frames() / 10; // Add a little extra so we can see the end marker
4433                 horizontal_adjustment.set_upper (cef / frames_per_unit);
4434                 horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
4435         } else {
4436                 update_fixed_rulers();
4437                 redisplay_tempo (true);
4438         }
4439
4440         _summary->set_overlays_dirty ();
4441
4442         //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
4443         pending_visual_change.idle_handler_id = -1;
4444         return 0; /* this is always a one-shot call */
4445 }
4446
4447 struct EditorOrderTimeAxisSorter {
4448     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
4449             return a->order () < b->order ();
4450     }
4451 };
4452
4453 void
4454 Editor::sort_track_selection (TrackSelection* sel)
4455 {
4456         EditorOrderTimeAxisSorter cmp;
4457
4458         if (sel) {
4459                 sel->sort (cmp);
4460         } else {
4461                 selection->tracks.sort (cmp);
4462         }
4463 }
4464
4465 nframes64_t
4466 Editor::get_preferred_edit_position (bool ignore_playhead)
4467 {
4468         bool ignored;
4469         nframes64_t where = 0;
4470         EditPoint ep = _edit_point;
4471
4472         if (entered_marker) {
4473                 return entered_marker->position();
4474         }
4475
4476         if (ignore_playhead && ep == EditAtPlayhead) {
4477                 ep = EditAtSelectedMarker;
4478         }
4479
4480         switch (ep) {
4481         case EditAtPlayhead:
4482                 where = session->audible_frame();
4483                 break;
4484
4485         case EditAtSelectedMarker:
4486                 if (!selection->markers.empty()) {
4487                         bool is_start;
4488                         Location* loc = find_location_from_marker (selection->markers.front(), is_start);
4489                         if (loc) {
4490                                 if (is_start) {
4491                                         where =  loc->start();
4492                                 } else {
4493                                         where = loc->end();
4494                                 }
4495                                 break;
4496                         }
4497                 }
4498                 /* fallthru */
4499
4500         default:
4501         case EditAtMouse:
4502                 if (!mouse_frame (where, ignored)) {
4503                         /* XXX not right but what can we do ? */
4504                         return 0;
4505                 }
4506                 snap_to (where);
4507                 break;
4508         }
4509
4510         return where;
4511 }
4512
4513 void
4514 Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
4515 {
4516         if (!session) return;
4517
4518         begin_reversible_command (cmd);
4519
4520         Location* tll;
4521
4522         if ((tll = transport_loop_location()) == 0) {
4523                 Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoLoop);
4524                 XMLNode &before = session->locations()->get_state();
4525                 session->locations()->add (loc, true);
4526                 session->set_auto_loop_location (loc);
4527                 XMLNode &after = session->locations()->get_state();
4528                 session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
4529         } else {
4530                 XMLNode &before = tll->get_state();
4531                 tll->set_hidden (false, this);
4532                 tll->set (start, end);
4533                 XMLNode &after = tll->get_state();
4534                 session->add_command (new MementoCommand<Location>(*tll, &before, &after));
4535         }
4536
4537         commit_reversible_command ();
4538 }
4539
4540 void
4541 Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
4542 {
4543         if (!session) return;
4544
4545         begin_reversible_command (cmd);
4546
4547         Location* tpl;
4548
4549         if ((tpl = transport_punch_location()) == 0) {
4550                 Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoPunch);
4551                 XMLNode &before = session->locations()->get_state();
4552                 session->locations()->add (loc, true);
4553                 session->set_auto_loop_location (loc);
4554                 XMLNode &after = session->locations()->get_state();
4555                 session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
4556         }
4557         else {
4558                 XMLNode &before = tpl->get_state();
4559                 tpl->set_hidden (false, this);
4560                 tpl->set (start, end);
4561                 XMLNode &after = tpl->get_state();
4562                 session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
4563         }
4564
4565         commit_reversible_command ();
4566 }
4567
4568 /** Find regions which exist at a given time, and optionally on a given list of tracks.
4569  *  @param rs List to which found regions are added.
4570  *  @param where Time to look at.
4571  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
4572  */
4573 void
4574 Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
4575 {
4576         const TrackSelection* tracks;
4577
4578         if (ts.empty()) {
4579                 tracks = &track_views;
4580         } else {
4581                 tracks = &ts;
4582         }
4583
4584         for (TrackSelection::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4585                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4586                 if (rtv) {
4587                         boost::shared_ptr<Diskstream> ds;
4588                         boost::shared_ptr<Playlist> pl;
4589
4590                         if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
4591
4592                                 Playlist::RegionList* regions = pl->regions_at (
4593                                                 (nframes64_t) floor ( (double)where * ds->speed()));
4594
4595                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4596                                         RegionView* rv = rtv->view()->find_view (*i);
4597                                         if (rv) {
4598                                                 rs.add (rv);
4599                                         }
4600                                 }
4601
4602                                 delete regions;
4603                         }
4604                 }
4605         }
4606 }
4607
4608 void
4609 Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
4610 {
4611         const TrackSelection* tracks;
4612
4613         if (ts.empty()) {
4614                 tracks = &track_views;
4615         } else {
4616                 tracks = &ts;
4617         }
4618
4619         for (TrackSelection::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4620                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4621                 if (rtv) {
4622                         boost::shared_ptr<Diskstream> ds;
4623                         boost::shared_ptr<Playlist> pl;
4624
4625                         if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
4626
4627                                 Playlist::RegionList* regions = pl->regions_touched (
4628                                                 (nframes64_t) floor ( (double)where * ds->speed()), max_frames);
4629
4630                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4631
4632                                         RegionView* rv = rtv->view()->find_view (*i);
4633
4634                                         if (rv) {
4635                                                 rs.push_back (rv);
4636                                         }
4637                                 }
4638
4639                                 delete regions;
4640                         }
4641                 }
4642         }
4643 }
4644
4645 /** Find all regions which are either:
4646  *      - selected or
4647  *      - the entered_regionview (if allow_entered == true) or
4648  *      - under the preferred edit position AND on a selected track, or on a track
4649  *        which is in the same active edit-enable route group as a selected region (if allow_edit_position == true)
4650  *  @param rs Returned region list.
4651  *  @param allow_entered true to include the entered_regionview in the list.
4652  */
4653 void
4654 Editor::get_regions_for_action (RegionSelection& rs, bool allow_entered, bool allow_edit_position)
4655 {
4656         /* Start with selected regions */
4657         rs = selection->regions;
4658
4659         /* Add the entered_regionview, if requested */
4660         if (allow_entered && entered_regionview) {
4661                 rs.add (entered_regionview);
4662         }
4663
4664         if (allow_edit_position) {
4665
4666                 TrackSelection tracks = selection->tracks;
4667
4668                 /* tracks is currently the set of selected tracks; add any other tracks that
4669                  * have regions that are in the same edit-activated route group as one of
4670                  * our regions */
4671                 for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4672
4673                         RouteGroup* g = (*i)->get_time_axis_view().route_group ();
4674                         if (g && g->active_property (RouteGroup::Edit)) {
4675                                 tracks.add (axis_views_from_routes (g->route_list()));
4676                         }
4677                 }
4678
4679                 /* now find regions that are at the edit position on those tracks */
4680                 nframes64_t const where = get_preferred_edit_position ();
4681                 get_regions_at (rs, where, tracks);
4682         }
4683 }
4684
4685 void
4686 Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
4687 {
4688         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4689
4690                 RouteTimeAxisView* tatv;
4691
4692                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4693
4694                         boost::shared_ptr<Playlist> pl;
4695                         vector<boost::shared_ptr<Region> > results;
4696                         RegionView* marv;
4697                         boost::shared_ptr<Diskstream> ds;
4698
4699                         if ((ds = tatv->get_diskstream()) == 0) {
4700                                 /* bus */
4701                                 continue;
4702                         }
4703
4704                         if ((pl = (ds->playlist())) != 0) {
4705                                 pl->get_region_list_equivalent_regions (region, results);
4706                         }
4707
4708                         for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
4709                                 if ((marv = tatv->view()->find_view (*ir)) != 0) {
4710                                         regions.push_back (marv);
4711                                 }
4712                         }
4713
4714                 }
4715         }
4716 }
4717
4718 void
4719 Editor::show_rhythm_ferret ()
4720 {
4721         if (rhythm_ferret == 0) {
4722                 rhythm_ferret = new RhythmFerret(*this);
4723         }
4724
4725         rhythm_ferret->set_session (session);
4726         rhythm_ferret->show ();
4727         rhythm_ferret->present ();
4728 }
4729
4730 void
4731 Editor::show_bundle_manager ()
4732 {
4733         if (_bundle_manager == 0) {
4734                 _bundle_manager = new BundleManager (*session);
4735         }
4736
4737         _bundle_manager->show ();
4738 }
4739
4740 void
4741 Editor::show_global_port_matrix (ARDOUR::DataType t)
4742 {
4743         if (_global_port_matrix[t] == 0) {
4744                 _global_port_matrix[t] = new GlobalPortMatrixWindow (*session, t);
4745         }
4746
4747         _global_port_matrix[t]->show ();
4748 }
4749
4750 void
4751 Editor::first_idle ()
4752 {
4753         MessageDialog* dialog = 0;
4754
4755         if (track_views.size() > 1) {
4756                 dialog = new MessageDialog (*this,
4757                                             _("Please wait while Ardour loads visual data"),
4758                                             true,
4759                                             Gtk::MESSAGE_INFO,
4760                                             Gtk::BUTTONS_NONE);
4761                 dialog->present ();
4762                 ARDOUR_UI::instance()->flush_pending ();
4763         }
4764
4765         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
4766                 (*t)->first_idle();
4767         }
4768
4769         // first idle adds route children (automation tracks), so we need to redisplay here
4770         _routes->redisplay ();
4771
4772         delete dialog;
4773
4774         _have_idled = true;
4775 }
4776
4777 static gboolean
4778 _idle_resizer (gpointer arg)
4779 {
4780         return ((Editor*)arg)->idle_resize ();
4781 }
4782
4783 void
4784 Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
4785 {
4786         if (resize_idle_id < 0) {
4787                 resize_idle_id = g_idle_add (_idle_resizer, this);
4788                 _pending_resize_amount = 0;
4789         }
4790
4791         /* make a note of the smallest resulting height, so that we can clamp the
4792            lower limit at TimeAxisView::hSmall */
4793
4794         int32_t min_resulting = INT32_MAX;
4795
4796         _pending_resize_amount += h;
4797         _pending_resize_view = view;
4798
4799         min_resulting = min (min_resulting, int32_t (_pending_resize_view->current_height()) + _pending_resize_amount);
4800
4801         if (selection->tracks.contains (_pending_resize_view)) {
4802                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4803                         min_resulting = min (min_resulting, int32_t ((*i)->current_height()) + _pending_resize_amount);
4804                 }
4805         }
4806
4807         if (min_resulting < 0) {
4808                 min_resulting = 0;
4809         }
4810
4811         /* clamp */
4812         if (uint32_t (min_resulting) < TimeAxisView::hSmall) {
4813                 _pending_resize_amount += TimeAxisView::hSmall - min_resulting;
4814         }
4815 }
4816
4817 /** Handle pending resizing of tracks */
4818 bool
4819 Editor::idle_resize ()
4820 {
4821         _pending_resize_view->idle_resize (_pending_resize_view->current_height() + _pending_resize_amount);
4822
4823         if (dynamic_cast<AutomationTimeAxisView*> (_pending_resize_view) == 0 &&
4824             selection->tracks.contains (_pending_resize_view)) {
4825
4826                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4827                         if (*i != _pending_resize_view) {
4828                                 (*i)->idle_resize ((*i)->current_height() + _pending_resize_amount);
4829                         }
4830                 }
4831         }
4832
4833         flush_canvas ();
4834         _group_tabs->set_dirty ();
4835         resize_idle_id = -1;
4836
4837         return false;
4838 }
4839
4840 void
4841 Editor::located ()
4842 {
4843         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::located));
4844
4845         _pending_locate_request = false;
4846 }
4847
4848 void
4849 Editor::region_view_added (RegionView *)
4850 {
4851         _summary->set_dirty ();
4852 }
4853
4854 void
4855 Editor::streamview_height_changed ()
4856 {
4857         _summary->set_dirty ();
4858 }
4859
4860 TimeAxisView*
4861 Editor::axis_view_from_route (Route* r) const
4862 {
4863         TrackViewList::const_iterator j = track_views.begin ();
4864         while (j != track_views.end()) {
4865                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*j);
4866                 if (rtv && rtv->route().get() == r) {
4867                         return rtv;
4868                 }
4869                 ++j;
4870         }
4871
4872         return 0;
4873 }
4874
4875
4876 TrackSelection
4877 Editor::axis_views_from_routes (list<Route*> r) const
4878 {
4879         TrackSelection t;
4880
4881         for (list<Route*>::const_iterator i = r.begin(); i != r.end(); ++i) {
4882                 TimeAxisView* tv = axis_view_from_route (*i);
4883                 if (tv) {
4884                         t.push_back (tv);
4885                 }
4886         }
4887
4888         return t;
4889 }
4890
4891
4892 void
4893 Editor::handle_new_route (RouteList& routes)
4894 {
4895         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::handle_new_route), routes));
4896
4897         RouteTimeAxisView *rtv;
4898         list<RouteTimeAxisView*> new_views;
4899
4900         for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
4901                 boost::shared_ptr<Route> route = (*x);
4902
4903                 if (route->is_hidden()) {
4904                         continue;
4905                 }
4906
4907                 DataType dt = route->input()->default_type();
4908
4909                 if (dt == ARDOUR::DataType::AUDIO) {
4910                         rtv = new AudioTimeAxisView (*this, *session, route, *track_canvas);
4911                 } else if (dt == ARDOUR::DataType::MIDI) {
4912                         rtv = new MidiTimeAxisView (*this, *session, route, *track_canvas);
4913                 } else {
4914                         throw unknown_type();
4915                 }
4916
4917                 new_views.push_back (rtv);
4918                 track_views.push_back (rtv);
4919
4920                 rtv->effective_gain_display ();
4921
4922                 rtv->view()->RegionViewAdded.connect (mem_fun (*this, &Editor::region_view_added));
4923                 rtv->view()->HeightChanged.connect (mem_fun (*this, &Editor::streamview_height_changed));
4924
4925                 rtv->GoingAway.connect (bind (mem_fun(*this, &Editor::remove_route), rtv));
4926         }
4927
4928         _routes->routes_added (new_views);
4929
4930         if (show_editor_mixer_when_tracks_arrive) {
4931                 show_editor_mixer (true);
4932         }
4933
4934         editor_list_button.set_sensitive (true);
4935
4936         _summary->set_dirty ();
4937 }
4938
4939 void
4940 Editor::remove_route (TimeAxisView *tv)
4941 {
4942         ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::remove_route), tv));
4943
4944         TrackViewList::iterator i;
4945         boost::shared_ptr<Route> route;
4946         TimeAxisView* next_tv = 0;
4947
4948         if (tv == entered_track) {
4949                 entered_track = 0;
4950         }
4951
4952         if ((i = find (track_views.begin(), track_views.end(), tv)) != track_views.end()) {
4953
4954                i = track_views.erase (i);
4955
4956                if (track_views.empty()) {
4957                        next_tv = 0;
4958                } else if (i == track_views.end()) {
4959                        next_tv = track_views.front();
4960                } else {
4961                       next_tv = (*i);
4962                }
4963         }
4964
4965         if (current_mixer_strip && current_mixer_strip->route() == route) {
4966
4967                if (next_tv) {
4968                        set_selected_mixer_strip (*next_tv);
4969                } else {
4970                        /* make the editor mixer strip go away setting the
4971                         * button to inactive (which also unticks the menu option)
4972                         */
4973
4974                        ActionManager::uncheck_toggleaction ("<Actions>/Editor/show-editor-mixer");
4975                }
4976         }
4977 }
4978
4979 void
4980 Editor::hide_track_in_display (TimeAxisView& tv, bool /*temponly*/)
4981 {
4982         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4983
4984         if (rtv && current_mixer_strip && (rtv->route() == current_mixer_strip->route())) {
4985                 // this will hide the mixer strip
4986                 set_selected_mixer_strip (tv);
4987         }
4988
4989         _routes->hide_track_in_display (tv);
4990 }
4991
4992 bool
4993 Editor::sync_track_view_list_and_routes ()
4994 {
4995         track_views = TrackSelection (_routes->views ());
4996
4997         _summary->set_dirty ();
4998         _group_tabs->set_dirty ();
4999
5000         return false; // do not call again (until needed)
5001 }
5002
5003 void
5004 Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
5005 {
5006         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5007                 theslot (**i);
5008         }
5009 }
5010
5011 RouteTimeAxisView*
5012 Editor::get_route_view_by_id (PBD::ID& id)
5013 {
5014         RouteTimeAxisView* v;
5015
5016         for(TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5017                 if((v = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5018                         if(v->route()->id() == id) {
5019                                 return v;
5020                         }
5021                 }
5022         }
5023
5024         return 0;
5025 }
5026
5027 void
5028 Editor::fit_route_group (RouteGroup *g)
5029 {
5030         TrackSelection ts = axis_views_from_routes (g->route_list ());
5031         fit_tracks (ts);
5032 }
5033
5034 void
5035 Editor::consider_auditioning (boost::shared_ptr<Region> region)
5036 {
5037         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
5038
5039         if (r == 0) {
5040                 session->cancel_audition ();
5041                 return;
5042         }
5043
5044         if (session->is_auditioning()) {
5045                 session->cancel_audition ();
5046                 if (r == last_audition_region) {
5047                         return;
5048                 }
5049         }
5050
5051         session->audition_region (r);
5052         last_audition_region = r;
5053 }
5054
5055
5056 void
5057 Editor::hide_a_region (boost::shared_ptr<Region> r)
5058 {
5059         r->set_hidden (true);
5060 }
5061
5062 void
5063 Editor::remove_a_region (boost::shared_ptr<Region> r)
5064 {
5065         session->remove_region_from_region_list (r);
5066 }
5067
5068 void
5069 Editor::audition_region_from_region_list ()
5070 {
5071         _regions->selection_mapover (mem_fun (*this, &Editor::consider_auditioning));
5072 }
5073
5074 void
5075 Editor::hide_region_from_region_list ()
5076 {
5077         _regions->selection_mapover (mem_fun (*this, &Editor::hide_a_region));
5078 }
5079
5080 void
5081 Editor::start_step_editing ()
5082 {
5083         step_edit_connection = Glib::signal_timeout().connect (mem_fun (*this, &Editor::check_step_edit), 20);
5084 }
5085
5086 void
5087 Editor::stop_step_editing ()
5088 {
5089         step_edit_connection.disconnect ();
5090 }
5091
5092 bool
5093 Editor::check_step_edit ()
5094 {
5095         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5096                 MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (*i);
5097                 if (mtv) {
5098                         mtv->check_step_edit ();
5099                 }
5100         }
5101
5102         return true; // do it again, till we stop
5103 }