gtk2_ardour/editor.cc

   1 /*
   2     Copyright (C) 2000-2009 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 /* Note: public Editor methods are documented in public_editor.h */
  21
  22 #define __STDC_LIMIT_MACROS 1
  23 #include <stdint.h>
  24 #include <unistd.h>
  25 #include <cstdlib>
  26 #include <cmath>
  27 #include <string>
  28 #include <algorithm>
  29 #include <map>
  30
  31 #include <boost/none.hpp>
  32
  33 #include <sigc++/bind.h>
  34
  35 #include "pbd/convert.h"
  36 #include "pbd/error.h"
  37 #include "pbd/enumwriter.h"
  38 #include "pbd/memento_command.h"
  39 #include "pbd/unknown_type.h"
  40
  41 #include <glibmm/miscutils.h>
  42 #include <gtkmm/image.h>
  43 #include <gdkmm/color.h>
  44 #include <gdkmm/bitmap.h>
  45
  46 #include <gtkmm2ext/grouped_buttons.h>
  47 #include <gtkmm2ext/gtk_ui.h>
  48 #include <gtkmm2ext/tearoff.h>
  49 #include <gtkmm2ext/utils.h>
  50 #include <gtkmm2ext/window_title.h>
  51 #include <gtkmm2ext/choice.h>
  52 #include <gtkmm2ext/cell_renderer_pixbuf_toggle.h>
  53
  54 #include "ardour/audio_diskstream.h"
  55 #include "ardour/audio_track.h"
  56 #include "ardour/audioplaylist.h"
  57 #include "ardour/audioregion.h"
  58 #include "ardour/location.h"
  59 #include "ardour/midi_region.h"
  60 #include "ardour/plugin_manager.h"
  61 #include "ardour/profile.h"
  62 #include "ardour/route_group.h"
  63 #include "ardour/session_directory.h"
  64 #include "ardour/session_route.h"
  65 #include "ardour/session_state_utils.h"
  66 #include "ardour/tempo.h"
  67 #include "ardour/utils.h"
  68
  69 #include "control_protocol/control_protocol.h"
  70
  71 #include "ardour_ui.h"
  72 #include "editor.h"
  73 #include "keyboard.h"
  74 #include "marker.h"
  75 #include "playlist_selector.h"
  76 #include "audio_region_view.h"
  77 #include "rgb_macros.h"
  78 #include "selection.h"
  79 #include "audio_streamview.h"
  80 #include "time_axis_view.h"
  81 #include "audio_time_axis.h"
  82 #include "utils.h"
  83 #include "crossfade_view.h"
  84 #include "editing.h"
  85 #include "public_editor.h"
  86 #include "crossfade_edit.h"
  87 #include "canvas_impl.h"
  88 #include "actions.h"
  89 #include "sfdb_ui.h"
  90 #include "gui_thread.h"
  91 #include "simpleline.h"
  92 #include "rhythm_ferret.h"
  93 #include "actions.h"
  94 #include "tempo_lines.h"
  95 #include "analysis_window.h"
  96 #include "bundle_manager.h"
  97 #include "global_port_matrix.h"
  98 #include "editor_drag.h"
  99 #include "editor_group_tabs.h"
 100 #include "automation_time_axis.h"
 101 #include "editor_routes.h"
 102 #include "midi_time_axis.h"
 103 #include "mixer_strip.h"
 104 #include "editor_route_groups.h"
 105 #include "editor_regions.h"
 106 #include "editor_snapshots.h"
 107
 108 #include "i18n.h"
 109
 110 #ifdef WITH_CMT
 111 #include "imageframe_socket_handler.h"
 112 #endif
 113
 114 using namespace std;
 115 using namespace sigc;
 116 using namespace ARDOUR;
 117 using namespace PBD;
 118 using namespace Gtk;
 119 using namespace Glib;
 120 using namespace Gtkmm2ext;
 121 using namespace Editing;
 122
 123 using PBD::internationalize;
 124 using PBD::atoi;
 125
 126 const double Editor::timebar_height = 15.0;
 127
 128 #include "editor_xpms"
 129
 130 static const gchar *_snap_type_strings[] = {
 131         N_("CD Frames"),
 132         N_("SMPTE Frames"),
 133         N_("SMPTE Seconds"),
 134         N_("SMPTE Minutes"),
 135         N_("Seconds"),
 136         N_("Minutes"),
 137         N_("Beats/32"),
 138         N_("Beats/16"),
 139         N_("Beats/8"),
 140         N_("Beats/4"),
 141         N_("Beats/3"),
 142         N_("Beats"),
 143         N_("Bars"),
 144         N_("Marks"),
 145         N_("Region starts"),
 146         N_("Region ends"),
 147         N_("Region syncs"),
 148         N_("Region bounds"),
 149         0
 150 };
 151
 152 static const gchar *_snap_mode_strings[] = {
 153         N_("No Grid"),
 154         N_("Grid"),
 155         N_("Magnetic"),
 156         0
 157 };
 158
 159 static const gchar *_edit_point_strings[] = {
 160         N_("Playhead"),
 161         N_("Marker"),
 162         N_("Mouse"),
 163         0
 164 };
 165
 166 static const gchar *_zoom_focus_strings[] = {
 167         N_("Left"),
 168         N_("Right"),
 169         N_("Center"),
 170         N_("Playhead"),
 171         N_("Mouse"),
 172         N_("Active Mark"),
 173         0
 174 };
 175
 176 #ifdef USE_RUBBERBAND
 177 static const gchar *_rb_opt_strings[] = {
 178         N_("Mushy"),
 179         N_("Smooth"),
 180         N_("Balanced multitimbral mixture"),
 181         N_("Unpitched percussion with stable notes"),
 182         N_("Crisp monophonic instrumental"),
 183         N_("Unpitched solo percussion"),
 184         0
 185 };
 186 #endif
 187
 188 /* Soundfile  drag-n-drop */
 189
 190 Gdk::Cursor* Editor::cross_hair_cursor = 0;
 191 Gdk::Cursor* Editor::selector_cursor = 0;
 192 Gdk::Cursor* Editor::trimmer_cursor = 0;
 193 Gdk::Cursor* Editor::grabber_cursor = 0;
 194 Gdk::Cursor* Editor::grabber_edit_point_cursor = 0;
 195 Gdk::Cursor* Editor::zoom_cursor = 0;
 196 Gdk::Cursor* Editor::time_fx_cursor = 0;
 197 Gdk::Cursor* Editor::fader_cursor = 0;
 198 Gdk::Cursor* Editor::speaker_cursor = 0;
 199 Gdk::Cursor* Editor::midi_pencil_cursor = 0;
 200 Gdk::Cursor* Editor::midi_select_cursor = 0;
 201 Gdk::Cursor* Editor::midi_resize_cursor = 0;
 202 Gdk::Cursor* Editor::midi_erase_cursor = 0;
 203 Gdk::Cursor* Editor::wait_cursor = 0;
 204 Gdk::Cursor* Editor::timebar_cursor = 0;
 205 Gdk::Cursor* Editor::transparent_cursor = 0;
 206
 207 void
 208 show_me_the_size (Requisition* r, const char* what)
 209 {
 210         cerr << "size of " << what << " = " << r->width << " x " << r->height << endl;
 211 }
 212
 213 Editor::Editor ()
 214           /* time display buttons */
 215         : minsec_label (_("Mins:Secs"))
 216         , bbt_label (_("Bars:Beats"))
 217         , smpte_label (_("Timecode"))
 218         , frame_label (_("Samples"))
 219         , tempo_label (_("Tempo"))
 220         , meter_label (_("Meter"))
 221         , mark_label (_("Location Markers"))
 222         , range_mark_label (_("Range Markers"))
 223         , transport_mark_label (_("Loop/Punch Ranges"))
 224         , cd_mark_label (_("CD Markers"))
 225         , edit_packer (4, 4, true)
 226
 227           /* the values here don't matter: layout widgets
 228              reset them as needed.
 229           */
 230
 231         , vertical_adjustment (0.0, 0.0, 10.0, 400.0)
 232         , horizontal_adjustment (0.0, 0.0, 20.0, 1200.0)
 233
 234           /* tool bar related */
 235
 236         , edit_point_clock (X_("editpoint"), false, X_("EditPointClock"), true)
 237         , zoom_range_clock (X_("zoomrange"), false, X_("ZoomRangeClock"), true, true)
 238
 239         , toolbar_selection_clock_table (2,3)
 240
 241         , automation_mode_button (_("mode"))
 242         , global_automation_button (_("automation"))
 243
 244         , midi_panic_button (_("Panic"))
 245
 246 #ifdef WITH_CMT
 247         , image_socket_listener(0)
 248 #endif
 249
 250           /* nudge */
 251
 252         , nudge_clock (X_("nudge"), false, X_("NudgeClock"), true, true)
 253         , meters_running(false)
 254         , _pending_locate_request (false)
 255
 256 {
 257         constructed = false;
 258
 259         /* we are a singleton */
 260
 261         PublicEditor::_instance = this;
 262
 263         session = 0;
 264         _have_idled = false;
 265
 266         selection = new Selection (this);
 267         cut_buffer = new Selection (this);
 268
 269         clicked_regionview = 0;
 270         clicked_axisview = 0;
 271         clicked_routeview = 0;
 272         clicked_crossfadeview = 0;
 273         clicked_control_point = 0;
 274         last_update_frame = 0;
 275         _drag = 0;
 276         current_mixer_strip = 0;
 277         current_bbt_points = 0;
 278         tempo_lines = 0;
 279
 280         snap_type_strings =  I18N (_snap_type_strings);
 281         snap_mode_strings =  I18N (_snap_mode_strings);
 282         zoom_focus_strings = I18N (_zoom_focus_strings);
 283         edit_point_strings = I18N (_edit_point_strings);
 284 #ifdef USE_RUBBERBAND
 285         rb_opt_strings = I18N (_rb_opt_strings);
 286 #endif
 287
 288         snap_threshold = 5.0;
 289         bbt_beat_subdivision = 4;
 290         _canvas_width = 0;
 291         _canvas_height = 0;
 292         last_autoscroll_x = 0;
 293         last_autoscroll_y = 0;
 294         autoscroll_active = false;
 295         autoscroll_timeout_tag = -1;
 296         interthread_progress_window = 0;
 297         logo_item = 0;
 298
 299         analysis_window = 0;
 300
 301         current_interthread_info = 0;
 302         _show_measures = true;
 303         _show_waveforms_recording = true;
 304         show_gain_after_trim = false;
 305         verbose_cursor_on = true;
 306         route_removal = false;
 307         last_item_entered = 0;
 308         last_item_entered_n = 0;
 309
 310         have_pending_keyboard_selection = false;
 311         _follow_playhead = true;
 312         _xfade_visibility = true;
 313         editor_ruler_menu = 0;
 314         no_ruler_shown_update = false;
 315         marker_menu = 0;
 316         start_end_marker_menu = 0;
 317         range_marker_menu = 0;
 318         marker_menu_item = 0;
 319         tm_marker_menu = 0;
 320         transport_marker_menu = 0;
 321         new_transport_marker_menu = 0;
 322         editor_mixer_strip_width = Wide;
 323         show_editor_mixer_when_tracks_arrive = false;
 324         region_edit_menu_split_multichannel_item = 0;
 325         region_edit_menu_split_item = 0;
 326         temp_location = 0;
 327         leftmost_frame = 0;
 328         current_stepping_trackview = 0;
 329         entered_track = 0;
 330         entered_regionview = 0;
 331         entered_marker = 0;
 332         clear_entered_track = false;
 333         _new_regionviews_show_envelope = false;
 334         current_timefx = 0;
 335         playhead_cursor = 0;
 336         button_release_can_deselect = true;
 337         _dragging_playhead = false;
 338         _dragging_edit_point = false;
 339         _dragging_hscrollbar = false;
 340         select_new_marker = false;
 341         zoomed_to_region = false;
 342         rhythm_ferret = 0;
 343         _bundle_manager = 0;
 344         for (ARDOUR::DataType::iterator i = ARDOUR::DataType::begin(); i != ARDOUR::DataType::end(); ++i) {
 345                 _global_port_matrix[*i] = 0;
 346         }
 347         allow_vertical_scroll = false;
 348         no_save_visual = false;
 349         resize_idle_id = -1;
 350
 351         scrubbing_direction = 0;
 352
 353         sfbrowser = 0;
 354
 355         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 356         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 357         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 358         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 359         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 360
 361         _edit_point = EditAtMouse;
 362         _internal_editing = false;
 363         current_canvas_cursor = 0;
 364
 365         frames_per_unit = 2048; /* too early to use reset_zoom () */
 366         reset_hscrollbar_stepping ();
 367
 368         zoom_focus = ZoomFocusLeft;
 369         set_zoom_focus (ZoomFocusLeft);
 370         zoom_range_clock.ValueChanged.connect (mem_fun(*this, &Editor::zoom_adjustment_changed));
 371
 372         bbt_label.set_name ("EditorTimeButton");
 373         bbt_label.set_size_request (-1, (int)timebar_height);
 374         bbt_label.set_alignment (1.0, 0.5);
 375         bbt_label.set_padding (5,0);
 376         bbt_label.hide ();
 377         bbt_label.set_no_show_all();
 378         minsec_label.set_name ("EditorTimeButton");
 379         minsec_label.set_size_request (-1, (int)timebar_height);
 380         minsec_label.set_alignment (1.0, 0.5);
 381         minsec_label.set_padding (5,0);
 382         minsec_label.hide ();
 383         minsec_label.set_no_show_all();
 384         smpte_label.set_name ("EditorTimeButton");
 385         smpte_label.set_size_request (-1, (int)timebar_height);
 386         smpte_label.set_alignment (1.0, 0.5);
 387         smpte_label.set_padding (5,0);
 388         smpte_label.hide ();
 389         smpte_label.set_no_show_all();
 390         frame_label.set_name ("EditorTimeButton");
 391         frame_label.set_size_request (-1, (int)timebar_height);
 392         frame_label.set_alignment (1.0, 0.5);
 393         frame_label.set_padding (5,0);
 394         frame_label.hide ();
 395         frame_label.set_no_show_all();
 396
 397         tempo_label.set_name ("EditorTimeButton");
 398         tempo_label.set_size_request (-1, (int)timebar_height);
 399         tempo_label.set_alignment (1.0, 0.5);
 400         tempo_label.set_padding (5,0);
 401         tempo_label.hide();
 402         tempo_label.set_no_show_all();
 403         meter_label.set_name ("EditorTimeButton");
 404         meter_label.set_size_request (-1, (int)timebar_height);
 405         meter_label.set_alignment (1.0, 0.5);
 406         meter_label.set_padding (5,0);
 407         meter_label.hide();
 408         meter_label.set_no_show_all();
 409         mark_label.set_name ("EditorTimeButton");
 410         mark_label.set_size_request (-1, (int)timebar_height);
 411         mark_label.set_alignment (1.0, 0.5);
 412         mark_label.set_padding (5,0);
 413         mark_label.hide();
 414         mark_label.set_no_show_all();
 415         cd_mark_label.set_name ("EditorTimeButton");
 416         cd_mark_label.set_size_request (-1, (int)timebar_height);
 417         cd_mark_label.set_alignment (1.0, 0.5);
 418         cd_mark_label.set_padding (5,0);
 419         cd_mark_label.hide();
 420         cd_mark_label.set_no_show_all();
 421         range_mark_label.set_name ("EditorTimeButton");
 422         range_mark_label.set_size_request (-1, (int)timebar_height);
 423         range_mark_label.set_alignment (1.0, 0.5);
 424         range_mark_label.set_padding (5,0);
 425         range_mark_label.hide();
 426         range_mark_label.set_no_show_all();
 427         transport_mark_label.set_name ("EditorTimeButton");
 428         transport_mark_label.set_size_request (-1, (int)timebar_height);
 429         transport_mark_label.set_alignment (1.0, 0.5);
 430         transport_mark_label.set_padding (5,0);
 431         transport_mark_label.hide();
 432         transport_mark_label.set_no_show_all();
 433
 434         initialize_rulers ();
 435         _summary = new EditorSummary (this);
 436         initialize_canvas ();
 437
 438         selection->TimeChanged.connect (mem_fun(*this, &Editor::time_selection_changed));
 439         selection->TracksChanged.connect (mem_fun(*this, &Editor::track_selection_changed));
 440         editor_regions_selection_changed_connection = selection->RegionsChanged.connect (mem_fun(*this, &Editor::region_selection_changed));
 441         selection->PointsChanged.connect (mem_fun(*this, &Editor::point_selection_changed));
 442         selection->MarkersChanged.connect (mem_fun(*this, &Editor::marker_selection_changed));
 443
 444         edit_controls_vbox.set_spacing (0);
 445         horizontal_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::scroll_canvas_horizontally), false);
 446         vertical_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::tie_vertical_scrolling), true);
 447         track_canvas->signal_map_event().connect (mem_fun (*this, &Editor::track_canvas_map_handler));
 448
 449         HBox* h = manage (new HBox);
 450         _group_tabs = new EditorGroupTabs (this);
 451         h->pack_start (*_group_tabs, PACK_SHRINK);
 452         h->pack_start (edit_controls_vbox);
 453         controls_layout.add (*h);
 454
 455         controls_layout.set_name ("EditControlsBase");
 456         controls_layout.add_events (Gdk::SCROLL_MASK);
 457         controls_layout.signal_scroll_event().connect (mem_fun(*this, &Editor::control_layout_scroll), false);
 458
 459         controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
 460         controls_layout.signal_button_release_event().connect (mem_fun(*this, &Editor::edit_controls_button_release));
 461         controls_layout_size_request_connection = controls_layout.signal_size_request().connect (mem_fun (*this, &Editor::controls_layout_size_request));
 462
 463         edit_vscrollbar.set_adjustment (vertical_adjustment);
 464         edit_hscrollbar.set_adjustment (horizontal_adjustment);
 465
 466         edit_hscrollbar.signal_button_press_event().connect (mem_fun(*this, &Editor::hscrollbar_button_press), false);
 467         edit_hscrollbar.signal_button_release_event().connect (mem_fun(*this, &Editor::hscrollbar_button_release), false);
 468         edit_hscrollbar.signal_size_allocate().connect (mem_fun(*this, &Editor::hscrollbar_allocate));
 469
 470         edit_hscrollbar.set_name ("EditorHScrollbar");
 471
 472         build_cursors ();
 473
 474         edit_point_clock.ValueChanged.connect (mem_fun(*this, &Editor::edit_point_clock_changed));
 475
 476         ArdourCanvas::Canvas* time_pad = manage(new ArdourCanvas::Canvas());
 477         ArdourCanvas::SimpleLine* pad_line_1 = manage(new ArdourCanvas::SimpleLine(*time_pad->root(),
 478                         0.0, 1.0, 100.0, 1.0));
 479         pad_line_1->property_color_rgba() = 0xFF0000FF;
 480         pad_line_1->show();
 481         time_pad->show();
 482
 483         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
 484         time_canvas_vbox.set_size_request (-1, -1);
 485
 486         ruler_label_event_box.add (ruler_label_vbox);
 487         ruler_label_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 488         ruler_label_event_box.signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_label_button_release));
 489
 490         time_button_event_box.add (time_button_vbox);
 491         time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 492         time_button_event_box.signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_label_button_release));
 493
 494         /* these enable us to have a dedicated window (for cursor setting, etc.)
 495            for the canvas areas.
 496         */
 497
 498         track_canvas_event_box.add (*track_canvas);
 499
 500         time_canvas_event_box.add (time_canvas_vbox);
 501         time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 502
 503         edit_packer.set_col_spacings (0);
 504         edit_packer.set_row_spacings (0);
 505         edit_packer.set_homogeneous (false);
 506         edit_packer.set_border_width (0);
 507         edit_packer.set_name ("EditorWindow");
 508
 509         edit_packer.attach (zoom_vbox,               0, 1, 0, 2,    SHRINK,        FILL, 0, 0);
 510         /* labels for the rulers */
 511         edit_packer.attach (ruler_label_event_box,   1, 2, 0, 1,    FILL,        SHRINK, 0, 0);
 512         /* labels for the marker "tracks" */
 513         edit_packer.attach (time_button_event_box,   1, 2, 1, 2,    FILL,        SHRINK, 0, 0);
 514         /* the rulers */
 515         edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
 516         /* track controls */
 517         edit_packer.attach (controls_layout,         0, 2, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
 518         /* main canvas */
 519         edit_packer.attach (track_canvas_event_box,  2, 3, 1, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 520
 521         bottom_hbox.set_border_width (2);
 522         bottom_hbox.set_spacing (3);
 523
 524         _route_groups = new EditorRouteGroups (this);
 525         _routes = new EditorRoutes (this);
 526         _regions = new EditorRegions (this);
 527         _snapshots = new EditorSnapshots (this);
 528
 529         named_selection_scroller.add (named_selection_display);
 530         named_selection_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 531
 532         named_selection_model = TreeStore::create (named_selection_columns);
 533         named_selection_display.set_model (named_selection_model);
 534         named_selection_display.append_column (_("Chunks"), named_selection_columns.text);
 535         named_selection_display.set_headers_visible (false);
 536         named_selection_display.set_size_request (100, -1);
 537         named_selection_display.set_name ("NamedSelectionDisplay");
 538
 539         named_selection_display.get_selection()->set_mode (SELECTION_SINGLE);
 540         named_selection_display.set_size_request (100, -1);
 541         named_selection_display.signal_button_release_event().connect (mem_fun(*this, &Editor::named_selection_display_button_release), false);
 542         named_selection_display.signal_key_release_event().connect (mem_fun(*this, &Editor::named_selection_display_key_release), false);
 543         named_selection_display.get_selection()->signal_changed().connect (mem_fun (*this, &Editor::named_selection_display_selection_changed));
 544
 545         Gtk::Label* nlabel;
 546
 547         nlabel = manage (new Label (_("Regions")));
 548         nlabel->set_angle (-90);
 549         the_notebook.append_page (_regions->widget (), *nlabel);
 550         nlabel = manage (new Label (_("Tracks/Busses")));
 551         nlabel->set_angle (-90);
 552         the_notebook.append_page (_routes->widget (), *nlabel);
 553         nlabel = manage (new Label (_("Snapshots")));
 554         nlabel->set_angle (-90);
 555         the_notebook.append_page (_snapshots->widget (), *nlabel);
 556         nlabel = manage (new Label (_("Route Groups")));
 557         nlabel->set_angle (-90);
 558         the_notebook.append_page (_route_groups->widget (), *nlabel);
 559
 560         if (!Profile->get_sae()) {
 561                 nlabel = manage (new Label (_("Chunks")));
 562                 nlabel->set_angle (-90);
 563                 the_notebook.append_page (named_selection_scroller, *nlabel);
 564         }
 565
 566         the_notebook.set_show_tabs (true);
 567         the_notebook.set_scrollable (true);
 568         the_notebook.popup_enable ();
 569         the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 570         the_notebook.show_all ();
 571
 572         post_maximal_editor_width = 0;
 573         post_maximal_pane_position = 0;
 574
 575         VPaned *editor_summary_pane = manage(new VPaned());
 576         editor_summary_pane->pack1(edit_packer);
 577         editor_summary_pane->pack2(*_summary);
 578
 579         edit_pane.pack1 (*editor_summary_pane, true, true);
 580         edit_pane.pack2 (the_notebook, false, true);
 581
 582         edit_pane.signal_size_allocate().connect (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 583
 584         top_hbox.pack_start (toolbar_frame, false, true);
 585
 586         HBox *hbox = manage (new HBox);
 587         hbox->pack_start (edit_pane, true, true);
 588
 589         global_vpacker.pack_start (top_hbox, false, false);
 590         global_vpacker.pack_start (*hbox, true, true);
 591
 592         global_hpacker.pack_start (global_vpacker, true, true);
 593
 594         set_name ("EditorWindow");
 595         add_accel_group (ActionManager::ui_manager->get_accel_group());
 596
 597         status_bar_hpacker.show ();
 598
 599         vpacker.pack_end (status_bar_hpacker, false, false);
 600         vpacker.pack_end (global_hpacker, true, true);
 601
 602         /* register actions now so that set_state() can find them and set toggles/checks etc */
 603
 604         register_actions ();
 605
 606         setup_toolbar ();
 607         setup_midi_toolbar ();
 608
 609         snap_type = SnapToBeat;
 610         set_snap_to (snap_type);
 611         snap_mode = SnapOff;
 612         set_snap_mode (snap_mode);
 613         set_mouse_mode (MouseObject, true);
 614         set_edit_point_preference (EditAtMouse, true);
 615
 616         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
 617         set_state (*node, Stateful::loading_state_version);
 618
 619         _playlist_selector = new PlaylistSelector();
 620         _playlist_selector->signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 621
 622         RegionView::RegionViewGoingAway.connect (mem_fun(*this, &Editor::catch_vanishing_regionview));
 623
 624         /* nudge stuff */
 625
 626         nudge_forward_button.add (*(manage (new Image (::get_icon("nudge_right")))));
 627         nudge_backward_button.add (*(manage (new Image (::get_icon("nudge_left")))));
 628
 629         ARDOUR_UI::instance()->tooltips().set_tip (nudge_forward_button, _("Nudge Region/Selection Forwards"));
 630         ARDOUR_UI::instance()->tooltips().set_tip (nudge_backward_button, _("Nudge Region/Selection Backwards"));
 631
 632         nudge_forward_button.set_name ("TransportButton");
 633         nudge_backward_button.set_name ("TransportButton");
 634
 635         fade_context_menu.set_name ("ArdourContextMenu");
 636
 637         /* icons, titles, WM stuff */
 638
 639         list<Glib::RefPtr<Gdk::Pixbuf> > window_icons;
 640         Glib::RefPtr<Gdk::Pixbuf> icon;
 641
 642         if ((icon = ::get_icon ("ardour_icon_16px")) != 0) {
 643                 window_icons.push_back (icon);
 644         }
 645         if ((icon = ::get_icon ("ardour_icon_22px")) != 0) {
 646                 window_icons.push_back (icon);
 647         }
 648         if ((icon = ::get_icon ("ardour_icon_32px")) != 0) {
 649                 window_icons.push_back (icon);
 650         }
 651         if ((icon = ::get_icon ("ardour_icon_48px")) != 0) {
 652                 window_icons.push_back (icon);
 653         }
 654         if (!window_icons.empty()) {
 655                 set_icon_list (window_icons);
 656                 set_default_icon_list (window_icons);
 657         }
 658
 659         WindowTitle title(Glib::get_application_name());
 660         title += _("Editor");
 661         set_title (title.get_string());
 662         set_wmclass (X_("ardour_editor"), "Ardour");
 663
 664         add (vpacker);
 665         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 666
 667         signal_configure_event().connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 668         signal_delete_event().connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
 669
 670         /* allow external control surfaces/protocols to do various things */
 671
 672         ControlProtocol::ZoomToSession.connect (mem_fun (*this, &Editor::temporal_zoom_session));
 673         ControlProtocol::ZoomIn.connect (bind (mem_fun (*this, &Editor::temporal_zoom_step), false));
 674         ControlProtocol::ZoomOut.connect (bind (mem_fun (*this, &Editor::temporal_zoom_step), true));
 675         ControlProtocol::ScrollTimeline.connect (mem_fun (*this, &Editor::control_scroll));
 676         BasicUI::AccessAction.connect (mem_fun (*this, &Editor::access_action));
 677
 678         Config->ParameterChanged.connect (mem_fun (*this, &Editor::parameter_changed));
 679
 680         _last_normalization_value = 0;
 681
 682         constructed = true;
 683         instant_save ();
 684 }
 685
 686 Editor::~Editor()
 687 {
 688 #ifdef WITH_CMT
 689         if(image_socket_listener) {
 690                 if(image_socket_listener->is_connected())
 691                 {
 692                         image_socket_listener->close_connection() ;
 693                 }
 694
 695                 delete image_socket_listener ;
 696                 image_socket_listener = 0 ;
 697         }
 698 #endif
 699
 700         delete _routes;
 701         delete _route_groups;
 702         delete track_canvas;
 703         delete _drag;
 704 }
 705
 706 void
 707 Editor::add_toplevel_controls (Container& cont)
 708 {
 709         vpacker.pack_start (cont, false, false);
 710         cont.show_all ();
 711 }
 712
 713 void
 714 Editor::catch_vanishing_regionview (RegionView *rv)
 715 {
 716         /* note: the selection will take care of the vanishing
 717            audioregionview by itself.
 718         */
 719
 720         if (_drag && rv->get_canvas_group() == _drag->item() && !_drag->ending()) {
 721                 _drag->end_grab (0);
 722                 delete _drag;
 723                 _drag = 0;
 724         }
 725
 726         if (clicked_regionview == rv) {
 727                 clicked_regionview = 0;
 728         }
 729
 730         if (entered_regionview == rv) {
 731                 set_entered_regionview (0);
 732         }
 733 }
 734
 735 void
 736 Editor::set_entered_regionview (RegionView* rv)
 737 {
 738         if (rv == entered_regionview) {
 739                 return;
 740         }
 741
 742         if (entered_regionview) {
 743                 entered_regionview->exited ();
 744         }
 745
 746         if ((entered_regionview = rv) != 0) {
 747                 entered_regionview->entered ();
 748         }
 749 }
 750
 751 void
 752 Editor::set_entered_track (TimeAxisView* tav)
 753 {
 754         if (entered_track) {
 755                 entered_track->exited ();
 756         }
 757
 758         if ((entered_track = tav) != 0) {
 759                 entered_track->entered ();
 760         }
 761 }
 762
 763 void
 764 Editor::show_window ()
 765 {
 766         if (! is_visible ()) {
 767                 show_all ();
 768
 769                 /* re-hide editor list if necessary */
 770                 editor_list_button_toggled ();
 771
 772                 /* re-hide summary widget if necessary */
 773                 parameter_changed ("show-summary");
 774
 775                 parameter_changed ("show-edit-group-tabs");
 776
 777                 /* now reset all audio_time_axis heights, because widgets might need
 778                    to be re-hidden
 779                 */
 780
 781                 TimeAxisView *tv;
 782
 783                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 784                         tv = (static_cast<TimeAxisView*>(*i));
 785                         tv->reset_height ();
 786                 }
 787         }
 788
 789         present ();
 790 }
 791
 792 void
 793 Editor::instant_save ()
 794 {
 795         if (!constructed || !ARDOUR_UI::instance()->session_loaded) {
 796                 return;
 797         }
 798
 799         if (session) {
 800                 session->add_instant_xml(get_state());
 801         } else {
 802                 Config->add_instant_xml(get_state());
 803         }
 804 }
 805
 806 void
 807 Editor::edit_point_clock_changed()
 808 {
 809         if (_dragging_edit_point) {
 810                 return;
 811         }
 812
 813         if (selection->markers.empty()) {
 814                 return;
 815         }
 816
 817         bool ignored;
 818         Location* loc = find_location_from_marker (selection->markers.front(), ignored);
 819
 820         if (!loc) {
 821                 return;
 822         }
 823
 824         loc->move_to (edit_point_clock.current_time());
 825 }
 826
 827 void
 828 Editor::zoom_adjustment_changed ()
 829 {
 830         if (session == 0) {
 831                 return;
 832         }
 833
 834         double fpu = zoom_range_clock.current_duration() / _canvas_width;
 835
 836         if (fpu < 1.0) {
 837                 fpu = 1.0;
 838                 zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
 839         } else if (fpu > session->current_end_frame() / _canvas_width) {
 840                 fpu = session->current_end_frame() / _canvas_width;
 841                 zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
 842         }
 843
 844         temporal_zoom (fpu);
 845 }
 846
 847 void
 848 Editor::control_scroll (float fraction)
 849 {
 850         ENSURE_GUI_THREAD(bind (mem_fun (*this, &Editor::control_scroll), fraction));
 851
 852         if (!session) {
 853                 return;
 854         }
 855
 856         double step = fraction * current_page_frames();
 857
 858         /*
 859                 _control_scroll_target is an optional<T>
 860
 861                 it acts like a pointer to an nframes64_t, with
 862                 a operator conversion to boolean to check
 863                 that it has a value could possibly use
 864                 playhead_cursor->current_frame to store the
 865                 value and a boolean in the class to know
 866                 when it's out of date
 867         */
 868
 869         if (!_control_scroll_target) {
 870                 _control_scroll_target = session->transport_frame();
 871                 _dragging_playhead = true;
 872         }
 873
 874         if ((fraction < 0.0f) && (*_control_scroll_target < (nframes64_t) fabs(step))) {
 875                 *_control_scroll_target = 0;
 876         } else if ((fraction > 0.0f) && (max_frames - *_control_scroll_target < step)) {
 877                 *_control_scroll_target = max_frames - (current_page_frames()*2); // allow room for slop in where the PH is on the screen
 878         } else {
 879                 *_control_scroll_target += (nframes64_t) floor (step);
 880         }
 881
 882         /* move visuals, we'll catch up with it later */
 883
 884         playhead_cursor->set_position (*_control_scroll_target);
 885         UpdateAllTransportClocks (*_control_scroll_target);
 886
 887         if (*_control_scroll_target > (current_page_frames() / 2)) {
 888                 /* try to center PH in window */
 889                 reset_x_origin (*_control_scroll_target - (current_page_frames()/2));
 890         } else {
 891                 reset_x_origin (0);
 892         }
 893
 894         /*
 895                 Now we do a timeout to actually bring the session to the right place
 896                 according to the playhead. This is to avoid reading disk buffers on every
 897                 call to control_scroll, which is driven by ScrollTimeline and therefore
 898                 probably by a control surface wheel which can generate lots of events.
 899         */
 900         /* cancel the existing timeout */
 901
 902         control_scroll_connection.disconnect ();
 903
 904         /* add the next timeout */
 905
 906         control_scroll_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::deferred_control_scroll), *_control_scroll_target), 250);
 907 }
 908
 909 bool
 910 Editor::deferred_control_scroll (nframes64_t /*target*/)
 911 {
 912         session->request_locate (*_control_scroll_target, session->transport_rolling());
 913         // reset for next stream
 914         _control_scroll_target = boost::none;
 915         _dragging_playhead = false;
 916         return false;
 917 }
 918
 919 void
 920 Editor::access_action (std::string action_group, std::string action_item)
 921 {
 922         if (!session) {
 923                 return;
 924         }
 925
 926         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::access_action), action_group, action_item));
 927
 928         RefPtr<Action> act;
 929         act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
 930
 931         if (act) {
 932                 act->activate();
 933         }
 934
 935
 936 }
 937
 938 void
 939 Editor::on_realize ()
 940 {
 941         Window::on_realize ();
 942         Realized ();
 943 }
 944
 945 void
 946 Editor::start_scrolling ()
 947 {
 948         scroll_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect
 949                 (mem_fun(*this, &Editor::update_current_screen));
 950
 951 }
 952
 953 void
 954 Editor::stop_scrolling ()
 955 {
 956         scroll_connection.disconnect ();
 957 }
 958
 959 void
 960 Editor::map_position_change (nframes64_t frame)
 961 {
 962         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::map_position_change), frame));
 963
 964         if (session == 0 || !_follow_playhead) {
 965                 return;
 966         }
 967
 968         center_screen (frame);
 969         playhead_cursor->set_position (frame);
 970 }
 971
 972 void
 973 Editor::center_screen (nframes64_t frame)
 974 {
 975         double page = _canvas_width * frames_per_unit;
 976
 977         /* if we're off the page, then scroll.
 978          */
 979
 980         if (frame < leftmost_frame || frame >= leftmost_frame + page) {
 981                 center_screen_internal (frame, page);
 982         }
 983 }
 984
 985 void
 986 Editor::center_screen_internal (nframes64_t frame, float page)
 987 {
 988         page /= 2;
 989
 990         if (frame > page) {
 991                 frame -= (nframes64_t) page;
 992         } else {
 993                 frame = 0;
 994         }
 995
 996         reset_x_origin (frame);
 997 }
 998
 999 void
1000 Editor::handle_new_duration ()
1001 {
1002         if (!session) {
1003                 return;
1004         }
1005
1006         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::handle_new_duration));
1007         nframes64_t new_end = session->current_end_frame() + (nframes64_t) floorf (current_page_frames() * 0.10f);
1008
1009         horizontal_adjustment.set_upper (new_end / frames_per_unit);
1010         horizontal_adjustment.set_page_size (current_page_frames()/frames_per_unit);
1011
1012         if (horizontal_adjustment.get_value() + _canvas_width > horizontal_adjustment.get_upper()) {
1013                 horizontal_adjustment.set_value (horizontal_adjustment.get_upper() - _canvas_width);
1014         }
1015         //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
1016 }
1017
1018 void
1019 Editor::update_title_s (const string & snap_name)
1020 {
1021         ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::update_title_s), snap_name));
1022
1023         update_title ();
1024 }
1025
1026 void
1027 Editor::update_title ()
1028 {
1029         ENSURE_GUI_THREAD (mem_fun(*this, &Editor::update_title));
1030
1031         if (session) {
1032                 bool dirty = session->dirty();
1033
1034                 string session_name;
1035
1036                 if (session->snap_name() != session->name()) {
1037                         session_name = session->snap_name();
1038                 } else {
1039                         session_name = session->name();
1040                 }
1041
1042                 if (dirty) {
1043                         session_name = "*" + session_name;
1044                 }
1045
1046                 WindowTitle title(session_name);
1047                 title += Glib::get_application_name();
1048                 set_title (title.get_string());
1049         }
1050 }
1051
1052 void
1053 Editor::connect_to_session (Session *t)
1054 {
1055         session = t;
1056
1057         compute_fixed_ruler_scale ();
1058
1059         /* there are never any selected regions at startup */
1060
1061         sensitize_the_right_region_actions (false);
1062
1063         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
1064         set_state (*node, Stateful::loading_state_version);
1065
1066         /* catch up with the playhead */
1067
1068         session->request_locate (playhead_cursor->current_frame);
1069
1070         update_title ();
1071
1072         session->GoingAway.connect (mem_fun(*this, &Editor::session_going_away));
1073         session->history().Changed.connect (mem_fun (*this, &Editor::history_changed));
1074
1075         /* These signals can all be emitted by a non-GUI thread. Therefore the
1076            handlers for them must not attempt to directly interact with the GUI,
1077            but use Gtkmm2ext::UI::instance()->call_slot();
1078         */
1079
1080         session_connections.push_back (session->TransportStateChange.connect (mem_fun(*this, &Editor::map_transport_state)));
1081         session_connections.push_back (session->PositionChanged.connect (mem_fun(*this, &Editor::map_position_change)));
1082         session_connections.push_back (session->RouteAdded.connect (mem_fun(*this, &Editor::handle_new_route)));
1083         session_connections.push_back (session->DurationChanged.connect (mem_fun(*this, &Editor::handle_new_duration)));
1084         session_connections.push_back (session->NamedSelectionAdded.connect (mem_fun(*this, &Editor::handle_new_named_selection)));
1085         session_connections.push_back (session->NamedSelectionRemoved.connect (mem_fun(*this, &Editor::handle_new_named_selection)));
1086         session_connections.push_back (session->DirtyChanged.connect (mem_fun(*this, &Editor::update_title)));
1087         session_connections.push_back (session->StateSaved.connect (mem_fun(*this, &Editor::update_title_s)));
1088         session_connections.push_back (session->AskAboutPlaylistDeletion.connect (mem_fun(*this, &Editor::playlist_deletion_dialog)));
1089
1090         session_connections.push_back (session->SMPTEOffsetChanged.connect (mem_fun(*this, &Editor::update_just_smpte)));
1091
1092         session_connections.push_back (session->tempo_map().StateChanged.connect (mem_fun(*this, &Editor::tempo_map_changed)));
1093
1094         session_connections.push_back (session->Located.connect (mem_fun (*this, &Editor::located)));
1095         session_connections.push_back (session->config.ParameterChanged.connect (mem_fun (*this, &Editor::parameter_changed)));
1096
1097         edit_point_clock.set_mode(AudioClock::BBT);
1098         edit_point_clock.set_session (session);
1099         zoom_range_clock.set_session (session);
1100         _playlist_selector->set_session (session);
1101         nudge_clock.set_session (session);
1102         if (Profile->get_sae()) {
1103                 BBT_Time bbt;
1104                 bbt.bars = 0;
1105                 bbt.beats = 0;
1106                 bbt.ticks = 120;
1107                 nframes_t pos = session->tempo_map().bbt_duration_at (0, bbt, 1);
1108                 nudge_clock.set_mode(AudioClock::BBT);
1109                 nudge_clock.set (pos, true, 0, AudioClock::BBT);
1110
1111         } else {
1112                 nudge_clock.set (session->frame_rate() * 5, true, 0, AudioClock::SMPTE); // default of 5 seconds
1113         }
1114
1115         playhead_cursor->canvas_item.show ();
1116
1117         if (rhythm_ferret) {
1118                 rhythm_ferret->set_session (session);
1119         }
1120
1121         if (analysis_window != 0)
1122                 analysis_window->set_session (session);
1123
1124         Location* loc = session->locations()->auto_loop_location();
1125         if (loc == 0) {
1126                 loc = new Location (0, session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
1127                 if (loc->start() == loc->end()) {
1128                         loc->set_end (loc->start() + 1);
1129                 }
1130                 session->locations()->add (loc, false);
1131                 session->set_auto_loop_location (loc);
1132         } else {
1133                 // force name
1134                 loc->set_name (_("Loop"));
1135         }
1136
1137         loc = session->locations()->auto_punch_location();
1138         if (loc == 0) {
1139                 loc = new Location (0, session->current_end_frame(), _("Punch"), (Location::Flags) (Location::IsAutoPunch | Location::IsHidden));
1140                 if (loc->start() == loc->end()) {
1141                         loc->set_end (loc->start() + 1);
1142                 }
1143                 session->locations()->add (loc, false);
1144                 session->set_auto_punch_location (loc);
1145         } else {
1146                 // force name
1147                 loc->set_name (_("Punch"));
1148         }
1149
1150         Config->map_parameters (mem_fun (*this, &Editor::parameter_changed));
1151         session->config.map_parameters (mem_fun (*this, &Editor::parameter_changed));
1152
1153         session->StateSaved.connect (mem_fun(*this, &Editor::session_state_saved));
1154
1155         refresh_location_display ();
1156         session->locations()->added.connect (mem_fun(*this, &Editor::add_new_location));
1157         session->locations()->removed.connect (mem_fun(*this, &Editor::location_gone));
1158         session->locations()->changed.connect (mem_fun(*this, &Editor::refresh_location_display));
1159         session->locations()->StateChanged.connect (mem_fun(*this, &Editor::refresh_location_display_s));
1160         session->locations()->end_location()->changed.connect (mem_fun(*this, &Editor::end_location_changed));
1161
1162         if (sfbrowser) {
1163                 sfbrowser->set_session (session);
1164         }
1165
1166         handle_new_duration ();
1167
1168         redisplay_named_selections ();
1169
1170         restore_ruler_visibility ();
1171         //tempo_map_changed (Change (0));
1172         session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
1173
1174         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1175                 (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
1176         }
1177
1178         start_scrolling ();
1179
1180         switch (snap_type) {
1181         case SnapToRegionStart:
1182         case SnapToRegionEnd:
1183         case SnapToRegionSync:
1184         case SnapToRegionBoundary:
1185                 build_region_boundary_cache ();
1186                 break;
1187
1188         default:
1189                 break;
1190         }
1191
1192         /* register for undo history */
1193         session->register_with_memento_command_factory(_id, this);
1194
1195         _summary->connect_to_session (session);
1196         _group_tabs->connect_to_session (session);
1197         _route_groups->connect_to_session (session);
1198         _regions->connect_to_session (session);
1199         _snapshots->connect_to_session (session);
1200         _routes->connect_to_session (session);
1201
1202         start_updating ();
1203 }
1204
1205 void
1206 Editor::build_cursors ()
1207 {
1208         using namespace Gdk;
1209
1210         Gdk::Color mbg ("#000000" ); /* Black */
1211         Gdk::Color mfg ("#0000ff" ); /* Blue. */
1212
1213         {
1214                 RefPtr<Bitmap> source, mask;
1215                 source = Bitmap::create (mag_bits, mag_width, mag_height);
1216                 mask = Bitmap::create (magmask_bits, mag_width, mag_height);
1217                 zoom_cursor = new Gdk::Cursor (source, mask, mfg, mbg, mag_x_hot, mag_y_hot);
1218         }
1219
1220         Gdk::Color fbg ("#ffffff" );
1221         Gdk::Color ffg  ("#000000" );
1222
1223         {
1224                 RefPtr<Bitmap> source, mask;
1225
1226                 source = Bitmap::create (fader_cursor_bits, fader_cursor_width, fader_cursor_height);
1227                 mask = Bitmap::create (fader_cursor_mask_bits, fader_cursor_width, fader_cursor_height);
1228                 fader_cursor = new Gdk::Cursor (source, mask, ffg, fbg, fader_cursor_x_hot, fader_cursor_y_hot);
1229         }
1230
1231         {
1232                 RefPtr<Bitmap> source, mask;
1233                 source = Bitmap::create (speaker_cursor_bits, speaker_cursor_width, speaker_cursor_height);
1234                 mask = Bitmap::create (speaker_cursor_mask_bits, speaker_cursor_width, speaker_cursor_height);
1235                 speaker_cursor = new Gdk::Cursor (source, mask, ffg, fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
1236         }
1237
1238         {
1239                 RefPtr<Bitmap> bits;
1240                 char pix[4] = { 0, 0, 0, 0 };
1241                 bits = Bitmap::create (pix, 2, 2);
1242                 Gdk::Color c;
1243                 transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
1244         }
1245
1246         {
1247                 RefPtr<Bitmap> bits;
1248                 char pix[4] = { 0, 0, 0, 0 };
1249                 bits = Bitmap::create (pix, 2, 2);
1250                 Gdk::Color c;
1251                 transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
1252         }
1253
1254
1255         grabber_cursor = new Gdk::Cursor (HAND2);
1256
1257         {
1258                 Glib::RefPtr<Gdk::Pixbuf> grabber_edit_point_pixbuf (::get_icon ("grabber_edit_point"));
1259                 grabber_edit_point_cursor = new Gdk::Cursor (Gdk::Display::get_default(), grabber_edit_point_pixbuf, 5, 17);
1260         }
1261
1262         cross_hair_cursor = new Gdk::Cursor (CROSSHAIR);
1263         trimmer_cursor =  new Gdk::Cursor (SB_H_DOUBLE_ARROW);
1264         selector_cursor = new Gdk::Cursor (XTERM);
1265         time_fx_cursor = new Gdk::Cursor (SIZING);
1266         wait_cursor = new Gdk::Cursor  (WATCH);
1267         timebar_cursor = new Gdk::Cursor(LEFT_PTR);
1268         midi_pencil_cursor = new Gdk::Cursor (PENCIL);
1269         midi_select_cursor = new Gdk::Cursor (CENTER_PTR);
1270         midi_resize_cursor = new Gdk::Cursor (SIZING);
1271         midi_erase_cursor = new Gdk::Cursor (DRAPED_BOX);
1272 }
1273
1274 /** Pop up a context menu for when the user clicks on a fade in or fade out */
1275 void
1276 Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
1277 {
1278         using namespace Menu_Helpers;
1279         AudioRegionView* arv = static_cast<AudioRegionView*> (item->get_data ("regionview"));
1280
1281         if (arv == 0) {
1282                 fatal << _("programming error: fade in canvas item has no regionview data pointer!") << endmsg;
1283                 /*NOTREACHED*/
1284         }
1285
1286         MenuList& items (fade_context_menu.items());
1287
1288         items.clear ();
1289
1290         switch (item_type) {
1291         case FadeInItem:
1292         case FadeInHandleItem:
1293                 if (arv->audio_region()->fade_in_active()) {
1294                         items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*this, &Editor::set_fade_in_active), false)));
1295                 } else {
1296                         items.push_back (MenuElem (_("Activate"), bind (mem_fun (*this, &Editor::set_fade_in_active), true)));
1297                 }
1298
1299                 items.push_back (SeparatorElem());
1300
1301                 if (Profile->get_sae()) {
1302                         items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1303                         items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1304                 } else {
1305                         items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1306                         items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1307                         items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogB)));
1308                         items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogA)));
1309                         items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Slow)));
1310                 }
1311
1312                 break;
1313
1314         case FadeOutItem:
1315         case FadeOutHandleItem:
1316                 if (arv->audio_region()->fade_out_active()) {
1317                         items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*this, &Editor::set_fade_out_active), false)));
1318                 } else {
1319                         items.push_back (MenuElem (_("Activate"), bind (mem_fun (*this, &Editor::set_fade_out_active), true)));
1320                 }
1321
1322                 items.push_back (SeparatorElem());
1323
1324                 if (Profile->get_sae()) {
1325                         items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1326                         items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1327                 } else {
1328                         items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1329                         items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1330                         items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogA)));
1331                         items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogB)));
1332                         items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Fast)));
1333                 }
1334
1335                 break;
1336
1337         default:
1338                 fatal << _("programming error: ")
1339                       << X_("non-fade canvas item passed to popup_fade_context_menu()")
1340                       << endmsg;
1341                 /*NOTREACHED*/
1342         }
1343
1344         fade_context_menu.popup (button, time);
1345 }
1346
1347 void
1348 Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, nframes64_t frame)
1349 {
1350         using namespace Menu_Helpers;
1351         Menu* (Editor::*build_menu_function)(nframes64_t);
1352         Menu *menu;
1353
1354         switch (item_type) {
1355         case RegionItem:
1356         case RegionViewName:
1357         case RegionViewNameHighlight:
1358                 if (with_selection) {
1359                         build_menu_function = &Editor::build_track_selection_context_menu;
1360                 } else {
1361                         build_menu_function = &Editor::build_track_region_context_menu;
1362                 }
1363                 break;
1364
1365         case SelectionItem:
1366                 if (with_selection) {
1367                         build_menu_function = &Editor::build_track_selection_context_menu;
1368                 } else {
1369                         build_menu_function = &Editor::build_track_context_menu;
1370                 }
1371                 break;
1372
1373         case CrossfadeViewItem:
1374                 build_menu_function = &Editor::build_track_crossfade_context_menu;
1375                 break;
1376
1377         case StreamItem:
1378                 if (clicked_routeview->get_diskstream()) {
1379                         build_menu_function = &Editor::build_track_context_menu;
1380                 } else {
1381                         build_menu_function = &Editor::build_track_bus_context_menu;
1382                 }
1383                 break;
1384
1385         default:
1386                 /* probably shouldn't happen but if it does, we don't care */
1387                 return;
1388         }
1389
1390         menu = (this->*build_menu_function)(frame);
1391         menu->set_name ("ArdourContextMenu");
1392
1393         /* now handle specific situations */
1394
1395         switch (item_type) {
1396         case RegionItem:
1397         case RegionViewName:
1398         case RegionViewNameHighlight:
1399                 if (!with_selection) {
1400                         if (region_edit_menu_split_item) {
1401                                 if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
1402                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, true);
1403                                 } else {
1404                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
1405                                 }
1406                         }
1407                         /*
1408                         if (region_edit_menu_split_multichannel_item) {
1409                                 if (clicked_regionview && clicked_regionview->region().n_channels() > 1) {
1410                                         // GTK2FIX find the action, change its sensitivity
1411                                         // region_edit_menu_split_multichannel_item->set_sensitive (true);
1412                                 } else {
1413                                         // GTK2FIX see above
1414                                         // region_edit_menu_split_multichannel_item->set_sensitive (false);
1415                                 }
1416                         }*/
1417                 }
1418                 break;
1419
1420         case SelectionItem:
1421                 break;
1422
1423         case CrossfadeViewItem:
1424                 break;
1425
1426         case StreamItem:
1427                 break;
1428
1429         default:
1430                 /* probably shouldn't happen but if it does, we don't care */
1431                 return;
1432         }
1433
1434         if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
1435
1436                 /* Bounce to disk */
1437
1438                 using namespace Menu_Helpers;
1439                 MenuList& edit_items  = menu->items();
1440
1441                 edit_items.push_back (SeparatorElem());
1442
1443                 switch (clicked_routeview->audio_track()->freeze_state()) {
1444                 case AudioTrack::NoFreeze:
1445                         edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
1446                         break;
1447
1448                 case AudioTrack::Frozen:
1449                         edit_items.push_back (MenuElem (_("Unfreeze"), mem_fun(*this, &Editor::unfreeze_route)));
1450                         break;
1451
1452                 case AudioTrack::UnFrozen:
1453                         edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
1454                         break;
1455                 }
1456
1457         }
1458
1459         if (item_type == StreamItem && clicked_routeview) {
1460                 clicked_routeview->build_underlay_menu(menu);
1461         }
1462
1463         menu->popup (button, time);
1464 }
1465
1466 Menu*
1467 Editor::build_track_context_menu (nframes64_t)
1468 {
1469         using namespace Menu_Helpers;
1470
1471         MenuList& edit_items = track_context_menu.items();
1472         edit_items.clear();
1473
1474         add_dstream_context_items (edit_items);
1475         return &track_context_menu;
1476 }
1477
1478 Menu*
1479 Editor::build_track_bus_context_menu (nframes64_t)
1480 {
1481         using namespace Menu_Helpers;
1482
1483         MenuList& edit_items = track_context_menu.items();
1484         edit_items.clear();
1485
1486         add_bus_context_items (edit_items);
1487         return &track_context_menu;
1488 }
1489
1490 Menu*
1491 Editor::build_track_region_context_menu (nframes64_t frame)
1492 {
1493         using namespace Menu_Helpers;
1494         MenuList& edit_items  = track_region_context_menu.items();
1495         edit_items.clear();
1496
1497         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
1498
1499         if (rtv) {
1500                 boost::shared_ptr<Diskstream> ds;
1501                 boost::shared_ptr<Playlist> pl;
1502
1503                 if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
1504                         Playlist::RegionList* regions = pl->regions_at ((nframes64_t) floor ( (double)frame * ds->speed()));
1505
1506                         if (selection->regions.size() > 1) {
1507                                 // there's already a multiple selection: just add a
1508                                 // single region context menu that will act on all
1509                                 // selected regions
1510                                 boost::shared_ptr<Region> dummy_region; // = NULL
1511                                 add_region_context_items (rtv->view(), dummy_region, edit_items);
1512                         } else {
1513                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
1514                                         add_region_context_items (rtv->view(), (*i), edit_items);
1515                                 }
1516                         }
1517
1518                         delete regions;
1519                 }
1520         }
1521
1522         add_dstream_context_items (edit_items);
1523
1524         return &track_region_context_menu;
1525 }
1526
1527 Menu*
1528 Editor::build_track_crossfade_context_menu (nframes64_t frame)
1529 {
1530         using namespace Menu_Helpers;
1531         MenuList& edit_items  = track_crossfade_context_menu.items();
1532         edit_items.clear ();
1533
1534         AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_axisview);
1535
1536         if (atv) {
1537                 boost::shared_ptr<Diskstream> ds;
1538                 boost::shared_ptr<Playlist> pl;
1539                 boost::shared_ptr<AudioPlaylist> apl;
1540
1541                 if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()) != 0) && ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) != 0)) {
1542
1543                         Playlist::RegionList* regions = pl->regions_at (frame);
1544                         AudioPlaylist::Crossfades xfades;
1545
1546                         apl->crossfades_at (frame, xfades);
1547
1548                         bool many = xfades.size() > 1;
1549
1550                         for (AudioPlaylist::Crossfades::iterator i = xfades.begin(); i != xfades.end(); ++i) {
1551                                 add_crossfade_context_items (atv->audio_view(), (*i), edit_items, many);
1552                         }
1553
1554                         if (selection->regions.size() > 1) {
1555                                 // there's already a multiple selection: just add a
1556                                 // single region context menu that will act on all
1557                                 // selected regions
1558                                 boost::shared_ptr<Region> dummy_region; // = NULL
1559                                 add_region_context_items (atv->audio_view(), dummy_region, edit_items);
1560                         } else {
1561                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
1562                                         add_region_context_items (atv->audio_view(), (*i), edit_items);
1563                                 }
1564                         }
1565                         delete regions;
1566                 }
1567         }
1568
1569         add_dstream_context_items (edit_items);
1570
1571         return &track_crossfade_context_menu;
1572 }
1573
1574 void
1575 Editor::analyze_region_selection()
1576 {
1577         if (analysis_window == 0) {
1578                 analysis_window = new AnalysisWindow();
1579
1580                 if (session != 0)
1581                         analysis_window->set_session(session);
1582
1583                 analysis_window->show_all();
1584         }
1585
1586         analysis_window->set_regionmode();
1587         analysis_window->analyze();
1588
1589         analysis_window->present();
1590 }
1591
1592 void
1593 Editor::analyze_range_selection()
1594 {
1595         if (analysis_window == 0) {
1596                 analysis_window = new AnalysisWindow();
1597
1598                 if (session != 0)
1599                         analysis_window->set_session(session);
1600
1601                 analysis_window->show_all();
1602         }
1603
1604         analysis_window->set_rangemode();
1605         analysis_window->analyze();
1606
1607         analysis_window->present();
1608 }
1609
1610 Menu*
1611 Editor::build_track_selection_context_menu (nframes64_t)
1612 {
1613         using namespace Menu_Helpers;
1614         MenuList& edit_items  = track_selection_context_menu.items();
1615         edit_items.clear ();
1616
1617         add_selection_context_items (edit_items);
1618         // edit_items.push_back (SeparatorElem());
1619         // add_dstream_context_items (edit_items);
1620
1621         return &track_selection_context_menu;
1622 }
1623
1624 /** Add context menu items relevant to crossfades.
1625  * @param edit_items List to add the items to.
1626  */
1627 void
1628 Editor::add_crossfade_context_items (AudioStreamView* /*view*/, boost::shared_ptr<Crossfade> xfade, Menu_Helpers::MenuList& edit_items, bool many)
1629 {
1630         using namespace Menu_Helpers;
1631         Menu     *xfade_menu = manage (new Menu);
1632         MenuList& items       = xfade_menu->items();
1633         xfade_menu->set_name ("ArdourContextMenu");
1634         string str;
1635
1636         if (xfade->active()) {
1637                 str = _("Mute");
1638         } else {
1639                 str = _("Unmute");
1640         }
1641
1642         items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::toggle_xfade_active), boost::weak_ptr<Crossfade> (xfade))));
1643         items.push_back (MenuElem (_("Edit"), bind (mem_fun(*this, &Editor::edit_xfade), boost::weak_ptr<Crossfade> (xfade))));
1644
1645         if (xfade->can_follow_overlap()) {
1646
1647                 if (xfade->following_overlap()) {
1648                         str = _("Convert to short");
1649                 } else {
1650                         str = _("Convert to full");
1651                 }
1652
1653                 items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::toggle_xfade_length), xfade)));
1654         }
1655
1656         if (many) {
1657                 str = xfade->out()->name();
1658                 str += "->";
1659                 str += xfade->in()->name();
1660         } else {
1661                 str = _("Crossfade");
1662         }
1663
1664         edit_items.push_back (MenuElem (str, *xfade_menu));
1665         edit_items.push_back (SeparatorElem());
1666 }
1667
1668 void
1669 Editor::xfade_edit_left_region ()
1670 {
1671         if (clicked_crossfadeview) {
1672                 clicked_crossfadeview->left_view.show_region_editor ();
1673         }
1674 }
1675
1676 void
1677 Editor::xfade_edit_right_region ()
1678 {
1679         if (clicked_crossfadeview) {
1680                 clicked_crossfadeview->right_view.show_region_editor ();
1681         }
1682 }
1683
1684 void
1685 Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> region, Menu_Helpers::MenuList& edit_items)
1686 {
1687         using namespace Menu_Helpers;
1688         Gtk::MenuItem* foo_item;
1689         Menu     *region_menu = manage (new Menu);
1690         MenuList& items       = region_menu->items();
1691         region_menu->set_name ("ArdourContextMenu");
1692
1693         boost::shared_ptr<AudioRegion> ar;
1694         boost::shared_ptr<MidiRegion>  mr;
1695
1696         if (region) {
1697                 ar = boost::dynamic_pointer_cast<AudioRegion> (region);
1698                 mr = boost::dynamic_pointer_cast<MidiRegion> (region);
1699
1700                 /* when this particular menu pops up, make the relevant region
1701                    become selected.
1702                 */
1703
1704                 region_menu->signal_map_event().connect (
1705                         bind (mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, boost::weak_ptr<Region>(region)));
1706
1707                 items.push_back (MenuElem (_("Rename"), mem_fun(*this, &Editor::rename_region)));
1708                 if (mr && internal_editing()) {
1709                         items.push_back (MenuElem (_("List editor..."), mem_fun(*this, &Editor::show_midi_list_editor)));
1710                 } else {
1711                         items.push_back (MenuElem (_("Region editor"), mem_fun(*this, &Editor::edit_region)));
1712                 }
1713         }
1714
1715         items.push_back (MenuElem (_("Raise to top layer"), mem_fun(*this, &Editor::raise_region_to_top)));
1716         items.push_back (MenuElem (_("Lower to bottom layer"), mem_fun  (*this, &Editor::lower_region_to_bottom)));
1717         items.push_back (SeparatorElem());
1718         items.push_back (MenuElem (_("Define sync point"), mem_fun(*this, &Editor::set_region_sync_from_edit_point)));
1719         if (_edit_point == EditAtMouse) {
1720                 items.back ().set_sensitive (false);
1721         }
1722         items.push_back (MenuElem (_("Remove sync point"), mem_fun(*this, &Editor::remove_region_sync)));
1723         items.push_back (SeparatorElem());
1724
1725         items.push_back (MenuElem (_("Audition"), mem_fun(*this, &Editor::play_selected_region)));
1726         items.push_back (MenuElem (_("Export"), mem_fun(*this, &Editor::export_region)));
1727         items.push_back (MenuElem (_("Bounce"), mem_fun(*this, &Editor::bounce_region_selection)));
1728
1729         if (ar) {
1730                 items.push_back (MenuElem (_("Spectral Analysis"), mem_fun(*this, &Editor::analyze_region_selection)));
1731         }
1732
1733         items.push_back (SeparatorElem());
1734
1735         sigc::connection fooc;
1736         boost::shared_ptr<Region> region_to_check;
1737
1738         if (region) {
1739                 region_to_check = region;
1740         } else {
1741                 region_to_check = selection->regions.front()->region();
1742         }
1743
1744         items.push_back (CheckMenuElem (_("Lock")));
1745         CheckMenuItem* region_lock_item = static_cast<CheckMenuItem*>(&items.back());
1746         if (region_to_check->locked()) {
1747                 region_lock_item->set_active();
1748         }
1749         region_lock_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_region_lock));
1750
1751         items.push_back (CheckMenuElem (_("Glue to Bars&Beats")));
1752         CheckMenuItem* bbt_glue_item = static_cast<CheckMenuItem*>(&items.back());
1753
1754         switch (region_to_check->positional_lock_style()) {
1755         case Region::MusicTime:
1756                 bbt_glue_item->set_active (true);
1757                 break;
1758         default:
1759                 bbt_glue_item->set_active (false);
1760                 break;
1761         }
1762
1763         bbt_glue_item->signal_activate().connect (bind (mem_fun (*this, &Editor::set_region_lock_style), Region::MusicTime));
1764
1765         items.push_back (CheckMenuElem (_("Mute")));
1766         CheckMenuItem* region_mute_item = static_cast<CheckMenuItem*>(&items.back());
1767         fooc = region_mute_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_region_mute));
1768         if (region_to_check->muted()) {
1769                 fooc.block (true);
1770                 region_mute_item->set_active();
1771                 fooc.block (false);
1772         }
1773
1774         if (!Profile->get_sae()) {
1775                 items.push_back (CheckMenuElem (_("Opaque")));
1776                 CheckMenuItem* region_opaque_item = static_cast<CheckMenuItem*>(&items.back());
1777                 fooc = region_opaque_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_region_opaque));
1778                 if (region_to_check->opaque()) {
1779                         fooc.block (true);
1780                         region_opaque_item->set_active();
1781                         fooc.block (false);
1782                 }
1783         }
1784
1785         items.push_back (CheckMenuElem (_("Original position"), mem_fun(*this, &Editor::naturalize)));
1786         if (region_to_check->at_natural_position()) {
1787                 items.back().set_sensitive (false);
1788         }
1789
1790         items.push_back (SeparatorElem());
1791
1792         if (ar) {
1793
1794                 RegionView* rv = sv->find_view (ar);
1795                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(rv);
1796
1797                 if (!Profile->get_sae()) {
1798                         items.push_back (MenuElem (_("Reset Envelope"), mem_fun(*this, &Editor::reset_region_gain_envelopes)));
1799
1800                         items.push_back (CheckMenuElem (_("Envelope Visible")));
1801                         CheckMenuItem* region_envelope_visible_item = static_cast<CheckMenuItem*> (&items.back());
1802                         fooc = region_envelope_visible_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_gain_envelope_visibility));
1803                         if (arv->envelope_visible()) {
1804                                 fooc.block (true);
1805                                 region_envelope_visible_item->set_active (true);
1806                                 fooc.block (false);
1807                         }
1808
1809                         items.push_back (CheckMenuElem (_("Envelope Active")));
1810                         CheckMenuItem* region_envelope_active_item = static_cast<CheckMenuItem*> (&items.back());
1811                         fooc = region_envelope_active_item->signal_activate().connect (mem_fun(*this, &Editor::toggle_gain_envelope_active));
1812
1813                         if (ar->envelope_active()) {
1814                                 fooc.block (true);
1815                                 region_envelope_active_item->set_active (true);
1816                                 fooc.block (false);
1817                         }
1818
1819                         items.push_back (SeparatorElem());
1820                 }
1821
1822                 items.push_back (MenuElem (_("Normalize"), mem_fun(*this, &Editor::normalize_region)));
1823                 if (ar->scale_amplitude() != 1) {
1824                         items.push_back (MenuElem (_("Reset Gain"), mem_fun(*this, &Editor::reset_region_scale_amplitude)));
1825                 }
1826
1827         } else if (mr) {
1828                 items.push_back (MenuElem (_("Quantize"), mem_fun(*this, &Editor::quantize_region)));
1829                 items.push_back (SeparatorElem());
1830         }
1831
1832         items.push_back (MenuElem (_("Strip Silence..."), mem_fun (*this, &Editor::strip_region_silence)));
1833         items.push_back (MenuElem (_("Reverse"), mem_fun(*this, &Editor::reverse_region)));
1834         items.push_back (SeparatorElem());
1835
1836         /* range related stuff */
1837
1838         items.push_back (MenuElem (_("Add Single Range"), mem_fun (*this, &Editor::add_location_from_audio_region)));
1839         items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_locations_from_audio_region)));
1840         if (selection->regions.size() < 2) {
1841                 items.back().set_sensitive (false);
1842         }
1843
1844         items.push_back (MenuElem (_("Set Range Selection"), mem_fun (*this, &Editor::set_selection_from_region)));
1845         items.push_back (SeparatorElem());
1846
1847         /* Nudge region */
1848
1849         Menu *nudge_menu = manage (new Menu());
1850         MenuList& nudge_items = nudge_menu->items();
1851         nudge_menu->set_name ("ArdourContextMenu");
1852
1853         nudge_items.push_back (MenuElem (_("Nudge fwd"), (bind (mem_fun(*this, &Editor::nudge_forward), false, false))));
1854         nudge_items.push_back (MenuElem (_("Nudge bwd"), (bind (mem_fun(*this, &Editor::nudge_backward), false, false))));
1855         nudge_items.push_back (MenuElem (_("Nudge fwd by capture offset"), (mem_fun(*this, &Editor::nudge_forward_capture_offset))));
1856         nudge_items.push_back (MenuElem (_("Nudge bwd by capture offset"), (mem_fun(*this, &Editor::nudge_backward_capture_offset))));
1857
1858         items.push_back (MenuElem (_("Nudge"), *nudge_menu));
1859         items.push_back (SeparatorElem());
1860
1861         Menu *trim_menu = manage (new Menu);
1862         MenuList& trim_items = trim_menu->items();
1863         trim_menu->set_name ("ArdourContextMenu");
1864
1865         trim_items.push_back (MenuElem (_("Start to edit point"), mem_fun(*this, &Editor::trim_region_from_edit_point)));
1866         foo_item = &trim_items.back();
1867         if (_edit_point == EditAtMouse) {
1868                 foo_item->set_sensitive (false);
1869         }
1870         trim_items.push_back (MenuElem (_("Edit point to end"), mem_fun(*this, &Editor::trim_region_to_edit_point)));
1871         foo_item = &trim_items.back();
1872         if (_edit_point == EditAtMouse) {
1873                 foo_item->set_sensitive (false);
1874         }
1875         trim_items.push_back (MenuElem (_("Trim To Loop"), mem_fun(*this, &Editor::trim_region_to_loop)));
1876         trim_items.push_back (MenuElem (_("Trim To Punch"), mem_fun(*this, &Editor::trim_region_to_punch)));
1877
1878         items.push_back (MenuElem (_("Trim"), *trim_menu));
1879         items.push_back (SeparatorElem());
1880
1881         items.push_back (MenuElem (_("Split"), (mem_fun(*this, &Editor::split))));
1882         region_edit_menu_split_item = &items.back();
1883
1884         if (_edit_point == EditAtMouse) {
1885                 region_edit_menu_split_item->set_sensitive (false);
1886         }
1887
1888         items.push_back (MenuElem (_("Make mono regions"), (mem_fun(*this, &Editor::split_multichannel_region))));
1889         region_edit_menu_split_multichannel_item = &items.back();
1890
1891         items.push_back (MenuElem (_("Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), false))));
1892         items.push_back (MenuElem (_("Multi-Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), true))));
1893         items.push_back (MenuElem (_("Fill Track"), (mem_fun(*this, &Editor::region_fill_track))));
1894         items.push_back (SeparatorElem());
1895         items.push_back (MenuElem (_("Remove"), mem_fun(*this, &Editor::remove_selected_regions)));
1896
1897         /* OK, stick the region submenu at the top of the list, and then add
1898            the standard items.
1899         */
1900
1901         /* we have to hack up the region name because "_" has a special
1902            meaning for menu titles.
1903         */
1904
1905         string::size_type pos = 0;
1906         string menu_item_name = (region) ? region->name() : _("Selected regions");
1907
1908         while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
1909                 menu_item_name.replace (pos, 1, "__");
1910                 pos += 2;
1911         }
1912
1913         edit_items.push_back (MenuElem (menu_item_name, *region_menu));
1914         edit_items.push_back (SeparatorElem());
1915 }
1916
1917 /** Add context menu items relevant to selection ranges.
1918  * @param edit_items List to add the items to.
1919  */
1920 void
1921 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
1922 {
1923         using namespace Menu_Helpers;
1924
1925         edit_items.push_back (MenuElem (_("Play Range"), mem_fun(*this, &Editor::play_selection)));
1926         edit_items.push_back (MenuElem (_("Loop Range"), bind (mem_fun(*this, &Editor::set_loop_from_selection), true)));
1927
1928         edit_items.push_back (SeparatorElem());
1929         edit_items.push_back (MenuElem (_("Spectral Analysis"), mem_fun(*this, &Editor::analyze_range_selection)));
1930
1931         if (!selection->regions.empty()) {
1932                 edit_items.push_back (SeparatorElem());
1933                 edit_items.push_back (MenuElem (_("Extend Range to End of Region"), bind (mem_fun(*this, &Editor::extend_selection_to_end_of_region), false)));
1934                 edit_items.push_back (MenuElem (_("Extend Range to Start of Region"), bind (mem_fun(*this, &Editor::extend_selection_to_start_of_region), false)));
1935         }
1936
1937         edit_items.push_back (SeparatorElem());
1938         edit_items.push_back (MenuElem (_("Silence Range"), mem_fun(*this, &Editor::separate_region_from_selection)));
1939         edit_items.push_back (MenuElem (_("Convert to Region in Region List"), mem_fun(*this, &Editor::new_region_from_selection)));
1940
1941         edit_items.push_back (SeparatorElem());
1942         edit_items.push_back (MenuElem (_("Select All in Range"), mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
1943
1944         edit_items.push_back (SeparatorElem());
1945         edit_items.push_back (MenuElem (_("Set Loop from Range"), bind (mem_fun(*this, &Editor::set_loop_from_selection), false)));
1946         edit_items.push_back (MenuElem (_("Set Punch from Range"), mem_fun(*this, &Editor::set_punch_from_selection)));
1947
1948         edit_items.push_back (SeparatorElem());
1949         edit_items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_location_from_selection)));
1950
1951         edit_items.push_back (SeparatorElem());
1952         edit_items.push_back (MenuElem (_("Crop Region to Range"), mem_fun(*this, &Editor::crop_region_to_selection)));
1953         edit_items.push_back (MenuElem (_("Fill Range with Region"), mem_fun(*this, &Editor::region_fill_selection)));
1954         edit_items.push_back (MenuElem (_("Duplicate Range"), bind (mem_fun(*this, &Editor::duplicate_dialog), false)));
1955         edit_items.push_back (MenuElem (_("Create Chunk from Range"), mem_fun(*this, &Editor::create_named_selection)));
1956
1957         edit_items.push_back (SeparatorElem());
1958         edit_items.push_back (MenuElem (_("Consolidate Range"), bind (mem_fun(*this, &Editor::bounce_range_selection), true, false)));
1959         edit_items.push_back (MenuElem (_("Consolidate Range With Processing"), bind (mem_fun(*this, &Editor::bounce_range_selection), true, true)));
1960         edit_items.push_back (MenuElem (_("Bounce Range to Region List"), bind (mem_fun(*this, &Editor::bounce_range_selection), false, false)));
1961         edit_items.push_back (MenuElem (_("Bounce Range to Region List With Processing"), bind (mem_fun(*this, &Editor::bounce_range_selection), false, true)));
1962         edit_items.push_back (MenuElem (_("Export Range"), mem_fun(*this, &Editor::export_range)));
1963 }
1964
1965
1966 void
1967 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
1968 {
1969         using namespace Menu_Helpers;
1970
1971         /* Playback */
1972
1973         Menu *play_menu = manage (new Menu);
1974         MenuList& play_items = play_menu->items();
1975         play_menu->set_name ("ArdourContextMenu");
1976
1977         play_items.push_back (MenuElem (_("Play from edit point"), mem_fun(*this, &Editor::play_from_edit_point)));
1978         play_items.push_back (MenuElem (_("Play from start"), mem_fun(*this, &Editor::play_from_start)));
1979         play_items.push_back (MenuElem (_("Play region"), mem_fun(*this, &Editor::play_selected_region)));
1980         play_items.push_back (SeparatorElem());
1981         play_items.push_back (MenuElem (_("Loop Region"), mem_fun(*this, &Editor::loop_selected_region)));
1982
1983         edit_items.push_back (MenuElem (_("Play"), *play_menu));
1984
1985         /* Selection */
1986
1987         Menu *select_menu = manage (new Menu);
1988         MenuList& select_items = select_menu->items();
1989         select_menu->set_name ("ArdourContextMenu");
1990
1991         select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
1992         select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
1993         select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
1994         select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
1995         select_items.push_back (SeparatorElem());
1996         select_items.push_back (MenuElem (_("Set range to loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
1997         select_items.push_back (MenuElem (_("Set range to punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
1998         select_items.push_back (SeparatorElem());
1999         select_items.push_back (MenuElem (_("Select All After Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
2000         select_items.push_back (MenuElem (_("Select All Before Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
2001         select_items.push_back (MenuElem (_("Select All After Playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2002         select_items.push_back (MenuElem (_("Select All Before Playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2003         select_items.push_back (MenuElem (_("Select All Between Playhead & Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_between), false)));
2004         select_items.push_back (MenuElem (_("Select All Within Playhead & Edit Point"), bind (mem_fun(*this, &Editor::select_all_selectables_between), true)));
2005         select_items.push_back (MenuElem (_("Select Range Between Playhead & Edit Point"), mem_fun(*this, &Editor::select_range_between)));
2006
2007         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2008
2009         /* Cut-n-Paste */
2010
2011         Menu *cutnpaste_menu = manage (new Menu);
2012         MenuList& cutnpaste_items = cutnpaste_menu->items();
2013         cutnpaste_menu->set_name ("ArdourContextMenu");
2014
2015         cutnpaste_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
2016         cutnpaste_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
2017         cutnpaste_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
2018
2019         cutnpaste_items.push_back (SeparatorElem());
2020
2021         cutnpaste_items.push_back (MenuElem (_("Align"), bind (mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
2022         cutnpaste_items.push_back (MenuElem (_("Align Relative"), bind (mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
2023
2024         cutnpaste_items.push_back (SeparatorElem());
2025
2026         cutnpaste_items.push_back (MenuElem (_("Insert chunk"), bind (mem_fun(*this, &Editor::paste_named_selection), 1.0f)));
2027
2028         edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
2029
2030         /* Adding new material */
2031
2032         edit_items.push_back (SeparatorElem());
2033         edit_items.push_back (MenuElem (_("Insert Selected Region"), bind (mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
2034         edit_items.push_back (MenuElem (_("Insert Existing Media"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
2035
2036         /* Nudge track */
2037
2038         Menu *nudge_menu = manage (new Menu());
2039         MenuList& nudge_items = nudge_menu->items();
2040         nudge_menu->set_name ("ArdourContextMenu");
2041
2042         edit_items.push_back (SeparatorElem());
2043         nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, true))));
2044         nudge_items.push_back (MenuElem (_("Nudge track after edit point fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, true))));
2045         nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, false))));
2046         nudge_items.push_back (MenuElem (_("Nudge track after edit point bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, false))));
2047
2048         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2049 }
2050
2051 void
2052 Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
2053 {
2054         using namespace Menu_Helpers;
2055
2056         /* Playback */
2057
2058         Menu *play_menu = manage (new Menu);
2059         MenuList& play_items = play_menu->items();
2060         play_menu->set_name ("ArdourContextMenu");
2061
2062         play_items.push_back (MenuElem (_("Play from edit point"), mem_fun(*this, &Editor::play_from_edit_point)));
2063         play_items.push_back (MenuElem (_("Play from start"), mem_fun(*this, &Editor::play_from_start)));
2064         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2065
2066         /* Selection */
2067
2068         Menu *select_menu = manage (new Menu);
2069         MenuList& select_items = select_menu->items();
2070         select_menu->set_name ("ArdourContextMenu");
2071
2072         select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2073         select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
2074         select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
2075         select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
2076         select_items.push_back (SeparatorElem());
2077         select_items.push_back (MenuElem (_("Select all after edit point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
2078         select_items.push_back (MenuElem (_("Select all before edit point"), bind (mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
2079         select_items.push_back (MenuElem (_("Select all after playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2080         select_items.push_back (MenuElem (_("Select all before playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2081
2082         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2083
2084         /* Cut-n-Paste */
2085
2086         Menu *cutnpaste_menu = manage (new Menu);
2087         MenuList& cutnpaste_items = cutnpaste_menu->items();
2088         cutnpaste_menu->set_name ("ArdourContextMenu");
2089
2090         cutnpaste_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
2091         cutnpaste_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
2092         cutnpaste_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
2093
2094         Menu *nudge_menu = manage (new Menu());
2095         MenuList& nudge_items = nudge_menu->items();
2096         nudge_menu->set_name ("ArdourContextMenu");
2097
2098         edit_items.push_back (SeparatorElem());
2099         nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, true))));
2100         nudge_items.push_back (MenuElem (_("Nudge track after edit point fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, true))));
2101         nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, false))));
2102         nudge_items.push_back (MenuElem (_("Nudge track after edit point bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, false))));
2103
2104         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2105 }
2106
2107 void
2108 Editor::set_snap_to (SnapType st)
2109 {
2110         unsigned int snap_ind = (unsigned int)st;
2111
2112         snap_type = st;
2113
2114         if (snap_ind > snap_type_strings.size() - 1) {
2115                 snap_ind = 0;
2116                 snap_type = (SnapType)snap_ind;
2117         }
2118
2119         string str = snap_type_strings[snap_ind];
2120
2121         if (str != snap_type_selector.get_active_text()) {
2122                 snap_type_selector.set_active_text (str);
2123         }
2124
2125         instant_save ();
2126
2127         switch (snap_type) {
2128         case SnapToAThirtysecondBeat:
2129         case SnapToASixteenthBeat:
2130         case SnapToAEighthBeat:
2131         case SnapToAQuarterBeat:
2132         case SnapToAThirdBeat:
2133                 compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
2134                 update_tempo_based_rulers ();
2135                 break;
2136
2137         case SnapToRegionStart:
2138         case SnapToRegionEnd:
2139         case SnapToRegionSync:
2140         case SnapToRegionBoundary:
2141                 build_region_boundary_cache ();
2142                 break;
2143
2144         default:
2145                 /* relax */
2146                 break;
2147     }
2148 }
2149
2150 void
2151 Editor::set_snap_mode (SnapMode mode)
2152 {
2153         snap_mode = mode;
2154         string str = snap_mode_strings[(int)mode];
2155
2156         if (str != snap_mode_selector.get_active_text ()) {
2157                 snap_mode_selector.set_active_text (str);
2158         }
2159
2160         instant_save ();
2161 }
2162 void
2163 Editor::set_edit_point_preference (EditPoint ep, bool force)
2164 {
2165         bool changed = (_edit_point != ep);
2166
2167         _edit_point = ep;
2168         string str = edit_point_strings[(int)ep];
2169
2170         if (str != edit_point_selector.get_active_text ()) {
2171                 edit_point_selector.set_active_text (str);
2172         }
2173
2174         set_canvas_cursor ();
2175
2176         if (!force && !changed) {
2177                 return;
2178         }
2179
2180         switch (zoom_focus) {
2181         case ZoomFocusMouse:
2182         case ZoomFocusPlayhead:
2183         case ZoomFocusEdit:
2184                 switch (_edit_point) {
2185                 case EditAtMouse:
2186                         set_zoom_focus (ZoomFocusMouse);
2187                         break;
2188                 case EditAtPlayhead:
2189                         set_zoom_focus (ZoomFocusPlayhead);
2190                         break;
2191                 case EditAtSelectedMarker:
2192                         set_zoom_focus (ZoomFocusEdit);
2193                         break;
2194                 }
2195                 break;
2196         default:
2197                 break;
2198         }
2199
2200         const char* action=NULL;
2201
2202         switch (_edit_point) {
2203         case EditAtPlayhead:
2204                 action = "edit-at-playhead";
2205                 break;
2206         case EditAtSelectedMarker:
2207                 action = "edit-at-marker";
2208                 break;
2209         case EditAtMouse:
2210                 action = "edit-at-mouse";
2211                 break;
2212         }
2213
2214         Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
2215         if (act) {
2216                 Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
2217         }
2218
2219         nframes64_t foo;
2220         bool in_track_canvas;
2221
2222         if (!mouse_frame (foo, in_track_canvas)) {
2223                 in_track_canvas = false;
2224         }
2225
2226         reset_canvas_action_sensitivity (in_track_canvas);
2227
2228         instant_save ();
2229 }
2230
2231 int
2232 Editor::set_state (const XMLNode& node, int version)
2233 {
2234         const XMLProperty* prop;
2235         XMLNode* geometry;
2236         int x, y, xoff, yoff;
2237         Gdk::Geometry g;
2238
2239         if ((prop = node.property ("id")) != 0) {
2240                 _id = prop->value ();
2241         }
2242
2243         g.base_width = default_width;
2244         g.base_height = default_height;
2245         x = 1;
2246         y = 1;
2247         xoff = 0;
2248         yoff = 21;
2249
2250         if ((geometry = find_named_node (node, "geometry")) != 0) {
2251
2252                 XMLProperty* prop;
2253
2254                 if ((prop = geometry->property("x_size")) == 0) {
2255                         prop = geometry->property ("x-size");
2256                 }
2257                 if (prop) {
2258                         g.base_width = atoi(prop->value());
2259                 }
2260                 if ((prop = geometry->property("y_size")) == 0) {
2261                         prop = geometry->property ("y-size");
2262                 }
2263                 if (prop) {
2264                         g.base_height = atoi(prop->value());
2265                 }
2266
2267                 if ((prop = geometry->property ("x_pos")) == 0) {
2268                         prop = geometry->property ("x-pos");
2269                 }
2270                 if (prop) {
2271                         x = atoi (prop->value());
2272
2273                 }
2274                 if ((prop = geometry->property ("y_pos")) == 0) {
2275                         prop = geometry->property ("y-pos");
2276                 }
2277                 if (prop) {
2278                         y = atoi (prop->value());
2279                 }
2280
2281                 if ((prop = geometry->property ("x_off")) == 0) {
2282                         prop = geometry->property ("x-off");
2283                 }
2284                 if (prop) {
2285                         xoff = atoi (prop->value());
2286                 }
2287                 if ((prop = geometry->property ("y_off")) == 0) {
2288                         prop = geometry->property ("y-off");
2289                 }
2290                 if (prop) {
2291                         yoff = atoi (prop->value());
2292                 }
2293         }
2294
2295         set_default_size (g.base_width, g.base_height);
2296         move (x, y);
2297
2298         if (session && (prop = node.property ("playhead"))) {
2299                 nframes64_t pos = atol (prop->value().c_str());
2300                 playhead_cursor->set_position (pos);
2301         } else {
2302                 playhead_cursor->set_position (0);
2303
2304                 /* reset_x_origin() doesn't work right here, since the old
2305                    position may be zero already, and it does nothing in such
2306                    circumstances.
2307                 */
2308
2309                 leftmost_frame = 0;
2310                 horizontal_adjustment.set_value (0);
2311         }
2312
2313         if ((prop = node.property ("mixer-width"))) {
2314                 editor_mixer_strip_width = Width (string_2_enum (prop->value(), editor_mixer_strip_width));
2315         }
2316
2317         if ((prop = node.property ("zoom-focus"))) {
2318                 set_zoom_focus ((ZoomFocus) atoi (prop->value()));
2319         }
2320
2321         if ((prop = node.property ("zoom"))) {
2322                 reset_zoom (PBD::atof (prop->value()));
2323         }
2324
2325         if ((prop = node.property ("snap-to"))) {
2326                 set_snap_to ((SnapType) atoi (prop->value()));
2327         }
2328
2329         if ((prop = node.property ("snap-mode"))) {
2330                 set_snap_mode ((SnapMode) atoi (prop->value()));
2331         }
2332
2333         if ((prop = node.property ("mouse-mode"))) {
2334                 MouseMode m = str2mousemode(prop->value());
2335                 mouse_mode = MouseMode ((int) m + 1); /* lie, force mode switch */
2336                 set_mouse_mode (m, true);
2337         } else {
2338                 mouse_mode = MouseGain; /* lie, to force the mode switch */
2339                 set_mouse_mode (MouseObject, true);
2340         }
2341
2342         if ((prop = node.property ("internal-edit"))) {
2343                 bool yn = string_is_affirmative (prop->value());
2344                 RefPtr<Action> act = ActionManager::get_action (X_("MouseMode"), X_("toggle-internal-edit"));
2345                 if (act) {
2346                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2347                         tact->set_active (!yn);
2348                         tact->set_active (yn);
2349                 }
2350         }
2351
2352         if ((prop = node.property ("edit-point"))) {
2353                 set_edit_point_preference ((EditPoint) string_2_enum (prop->value(), _edit_point), true);
2354         }
2355
2356         if ((prop = node.property ("show-waveforms-recording"))) {
2357                 bool yn = string_is_affirmative (prop->value());
2358                 _show_waveforms_recording = !yn;
2359                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformsWhileRecording"));
2360                 if (act) {
2361                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2362                         /* do it twice to force the change */
2363                         tact->set_active (!yn);
2364                         tact->set_active (yn);
2365                 }
2366         }
2367
2368         if ((prop = node.property ("show-measures"))) {
2369                 bool yn = string_is_affirmative (prop->value());
2370                 _show_measures = !yn;
2371                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
2372                 if (act) {
2373                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2374                         /* do it twice to force the change */
2375                         tact->set_active (!yn);
2376                         tact->set_active (yn);
2377                 }
2378         }
2379
2380         if ((prop = node.property ("follow-playhead"))) {
2381                 bool yn = string_is_affirmative (prop->value());
2382                 set_follow_playhead (yn);
2383                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
2384                 if (act) {
2385                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2386                         if (tact->get_active() != yn) {
2387                                 tact->set_active (yn);
2388                         }
2389                 }
2390         }
2391
2392         if ((prop = node.property ("region-list-sort-type"))) {
2393                 _regions->reset_sort_type (str2regionlistsorttype(prop->value()), true);
2394         }
2395
2396         if ((prop = node.property ("xfades-visible"))) {
2397                 bool yn = string_is_affirmative (prop->value());
2398                 _xfade_visibility = !yn;
2399                 // set_xfade_visibility (yn);
2400         }
2401
2402         if ((prop = node.property ("show-editor-mixer"))) {
2403
2404                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2405                 if (act) {
2406
2407                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2408                         bool yn = string_is_affirmative (prop->value());
2409
2410                         /* do it twice to force the change */
2411
2412                         tact->set_active (!yn);
2413                         tact->set_active (yn);
2414                 }
2415         }
2416
2417         if ((prop = node.property ("show-editor-list"))) {
2418
2419                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2420                 assert(act);
2421                 if (act) {
2422
2423                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2424                         bool yn = string_is_affirmative (prop->value());
2425
2426                         /* do it twice to force the change */
2427
2428                         tact->set_active (!yn);
2429                         tact->set_active (yn);
2430                 }
2431         }
2432
2433
2434         return 0;
2435 }
2436
2437 XMLNode&
2438 Editor::get_state ()
2439 {
2440         XMLNode* node = new XMLNode ("Editor");
2441         char buf[32];
2442
2443         _id.print (buf, sizeof (buf));
2444         node->add_property ("id", buf);
2445
2446         if (is_realized()) {
2447                 Glib::RefPtr<Gdk::Window> win = get_window();
2448
2449                 int x, y, xoff, yoff, width, height;
2450                 win->get_root_origin(x, y);
2451                 win->get_position(xoff, yoff);
2452                 win->get_size(width, height);
2453
2454                 XMLNode* geometry = new XMLNode ("geometry");
2455
2456                 snprintf(buf, sizeof(buf), "%d", width);
2457                 geometry->add_property("x-size", string(buf));
2458                 snprintf(buf, sizeof(buf), "%d", height);
2459                 geometry->add_property("y-size", string(buf));
2460                 snprintf(buf, sizeof(buf), "%d", x);
2461                 geometry->add_property("x-pos", string(buf));
2462                 snprintf(buf, sizeof(buf), "%d", y);
2463                 geometry->add_property("y-pos", string(buf));
2464                 snprintf(buf, sizeof(buf), "%d", xoff);
2465                 geometry->add_property("x-off", string(buf));
2466                 snprintf(buf, sizeof(buf), "%d", yoff);
2467                 geometry->add_property("y-off", string(buf));
2468                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
2469                 geometry->add_property("edit_pane_pos", string(buf));
2470
2471                 node->add_child_nocopy (*geometry);
2472         }
2473
2474         maybe_add_mixer_strip_width (*node);
2475
2476         snprintf (buf, sizeof(buf), "%d", (int) zoom_focus);
2477         node->add_property ("zoom-focus", buf);
2478         snprintf (buf, sizeof(buf), "%f", frames_per_unit);
2479         node->add_property ("zoom", buf);
2480         snprintf (buf, sizeof(buf), "%d", (int) snap_type);
2481         node->add_property ("snap-to", buf);
2482         snprintf (buf, sizeof(buf), "%d", (int) snap_mode);
2483         node->add_property ("snap-mode", buf);
2484
2485         node->add_property ("edit-point", enum_2_string (_edit_point));
2486
2487         snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame);
2488         node->add_property ("playhead", buf);
2489
2490         node->add_property ("show-waveforms-recording", _show_waveforms_recording ? "yes" : "no");
2491         node->add_property ("show-measures", _show_measures ? "yes" : "no");
2492         node->add_property ("follow-playhead", _follow_playhead ? "yes" : "no");
2493         node->add_property ("xfades-visible", _xfade_visibility ? "yes" : "no");
2494         node->add_property ("region-list-sort-type", enum2str (_regions->sort_type ()));
2495         node->add_property ("mouse-mode", enum2str(mouse_mode));
2496         node->add_property ("internal-edit", _internal_editing ? "yes" : "no");
2497
2498         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2499         if (act) {
2500                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2501                 node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
2502         }
2503
2504         act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2505         if (act) {
2506                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2507                 node->add_property (X_("show-editor-list"), tact->get_active() ? "yes" : "no");
2508         }
2509
2510         return *node;
2511 }
2512
2513
2514
2515 /** @param y y offset from the top of all trackviews.
2516  *  @return pair: TimeAxisView that y is over, layer index.
2517  *  TimeAxisView may be 0.  Layer index is the layer number if the TimeAxisView is valid and is
2518  *  in stacked region display mode, otherwise 0.
2519  */
2520 std::pair<TimeAxisView *, layer_t>
2521 Editor::trackview_by_y_position (double y)
2522 {
2523         for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
2524
2525                 std::pair<TimeAxisView*, int> const r = (*iter)->covers_y_position (y);
2526                 if (r.first) {
2527                         return r;
2528                 }
2529         }
2530
2531         return std::make_pair ( (TimeAxisView *) 0, 0);
2532 }
2533
2534 /** Snap a position to the grid, if appropriate, taking into account current
2535  *  grid settings and also the state of any snap modifier keys that may be pressed.
2536  *  @param start Position to snap.
2537  *  @param event Event to get current key modifier information from.
2538  */
2539 void
2540 Editor::snap_to_with_modifier (nframes64_t& start, GdkEvent const * event, int32_t direction, bool for_mark)
2541 {
2542         if (!session) {
2543                 return;
2544         }
2545
2546         if (Keyboard::modifier_state_contains (event->button.state, Keyboard::snap_modifier())) {
2547                 if (snap_mode == SnapOff) {
2548                         snap_to_internal (start, direction, for_mark);
2549                 }
2550         } else {
2551                 if (snap_mode != SnapOff) {
2552                         snap_to_internal (start, direction, for_mark);
2553                 }
2554         }
2555 }
2556
2557 void
2558 Editor::snap_to (nframes64_t& start, int32_t direction, bool for_mark)
2559 {
2560         if (!session || snap_mode == SnapOff) {
2561                 return;
2562         }
2563
2564         snap_to_internal (start, direction, for_mark);
2565 }
2566
2567 void
2568 Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
2569 {
2570         Location* before = 0;
2571         Location* after = 0;
2572
2573         const nframes64_t one_second = session->frame_rate();
2574         const nframes64_t one_minute = session->frame_rate() * 60;
2575         const nframes64_t one_smpte_second = (nframes64_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame());
2576         nframes64_t one_smpte_minute = (nframes64_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame() * 60);
2577         nframes64_t presnap = start;
2578
2579         switch (snap_type) {
2580         case SnapToCDFrame:
2581                 if (((direction == 0) && (start % (one_second/75) > (one_second/75) / 2)) || (direction > 0)) {
2582                         start = (nframes64_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
2583                 } else {
2584                         start = (nframes64_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
2585                 }
2586                 break;
2587
2588         case SnapToSMPTEFrame:
2589                 if (((direction == 0) && (fmod((double)start, (double)session->frames_per_smpte_frame()) > (session->frames_per_smpte_frame() / 2))) || (direction > 0)) {
2590                         start = (nframes64_t) (ceil ((double) start / session->frames_per_smpte_frame()) * session->frames_per_smpte_frame());
2591                 } else {
2592                         start = (nframes64_t) (floor ((double) start / session->frames_per_smpte_frame()) *  session->frames_per_smpte_frame());
2593                 }
2594                 break;
2595
2596         case SnapToSMPTESeconds:
2597                 if (session->smpte_offset_negative())
2598                 {
2599                         start += session->smpte_offset ();
2600                 } else {
2601                         start -= session->smpte_offset ();
2602                 }
2603                 if (((direction == 0) && (start % one_smpte_second > one_smpte_second / 2)) || direction > 0) {
2604                         start = (nframes64_t) ceil ((double) start / one_smpte_second) * one_smpte_second;
2605                 } else {
2606                         start = (nframes64_t) floor ((double) start / one_smpte_second) * one_smpte_second;
2607                 }
2608
2609                 if (session->smpte_offset_negative())
2610                 {
2611                         start -= session->smpte_offset ();
2612                 } else {
2613                         start += session->smpte_offset ();
2614                 }
2615                 break;
2616
2617         case SnapToSMPTEMinutes:
2618                 if (session->smpte_offset_negative())
2619                 {
2620                         start += session->smpte_offset ();
2621                 } else {
2622                         start -= session->smpte_offset ();
2623                 }
2624                 if (((direction == 0) && (start % one_smpte_minute > one_smpte_minute / 2)) || direction > 0) {
2625                         start = (nframes64_t) ceil ((double) start / one_smpte_minute) * one_smpte_minute;
2626                 } else {
2627                         start = (nframes64_t) floor ((double) start / one_smpte_minute) * one_smpte_minute;
2628                 }
2629                 if (session->smpte_offset_negative())
2630                 {
2631                         start -= session->smpte_offset ();
2632                 } else {
2633                         start += session->smpte_offset ();
2634                 }
2635                 break;
2636
2637         case SnapToSeconds:
2638                 if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
2639                         start = (nframes64_t) ceil ((double) start / one_second) * one_second;
2640                 } else {
2641                         start = (nframes64_t) floor ((double) start / one_second) * one_second;
2642                 }
2643                 break;
2644
2645         case SnapToMinutes:
2646                 if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
2647                         start = (nframes64_t) ceil ((double) start / one_minute) * one_minute;
2648                 } else {
2649                         start = (nframes64_t) floor ((double) start / one_minute) * one_minute;
2650                 }
2651                 break;
2652
2653         case SnapToBar:
2654                 start = session->tempo_map().round_to_bar (start, direction);
2655                 break;
2656
2657         case SnapToBeat:
2658                 start = session->tempo_map().round_to_beat (start, direction);
2659                 break;
2660
2661         case SnapToAThirtysecondBeat:
2662                 start = session->tempo_map().round_to_beat_subdivision (start, 32, direction);
2663                 break;
2664
2665         case SnapToASixteenthBeat:
2666                 start = session->tempo_map().round_to_beat_subdivision (start, 16, direction);
2667                 break;
2668
2669         case SnapToAEighthBeat:
2670                 start = session->tempo_map().round_to_beat_subdivision (start, 8, direction);
2671                 break;
2672
2673         case SnapToAQuarterBeat:
2674                 start = session->tempo_map().round_to_beat_subdivision (start, 4, direction);
2675                 break;
2676
2677         case SnapToAThirdBeat:
2678                 start = session->tempo_map().round_to_beat_subdivision (start, 3, direction);
2679                 break;
2680
2681         case SnapToMark:
2682                 if (for_mark) {
2683                         return;
2684                 }
2685
2686                 before = session->locations()->first_location_before (start);
2687                 after = session->locations()->first_location_after (start);
2688
2689                 if (direction < 0) {
2690                         if (before) {
2691                                 start = before->start();
2692                         } else {
2693                                 start = 0;
2694                         }
2695                 } else if (direction > 0) {
2696                         if (after) {
2697                                 start = after->start();
2698                         } else {
2699                                 start = session->current_end_frame();
2700                         }
2701                 } else {
2702                         if (before) {
2703                                 if (after) {
2704                                         /* find nearest of the two */
2705                                         if ((start - before->start()) < (after->start() - start)) {
2706                                                 start = before->start();
2707                                         } else {
2708                                                 start = after->start();
2709                                         }
2710                                 } else {
2711                                         start = before->start();
2712                                 }
2713                         } else if (after) {
2714                                 start = after->start();
2715                         } else {
2716                                 /* relax */
2717                         }
2718                 }
2719                 break;
2720
2721         case SnapToRegionStart:
2722         case SnapToRegionEnd:
2723         case SnapToRegionSync:
2724         case SnapToRegionBoundary:
2725                 if (!region_boundary_cache.empty()) {
2726
2727                         vector<nframes64_t>::iterator prev = region_boundary_cache.end ();
2728                         vector<nframes64_t>::iterator next = region_boundary_cache.end ();
2729
2730                         if (direction > 0) {
2731                                 next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2732                         } else {
2733                                 next = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2734                         }
2735
2736                         if (next != region_boundary_cache.begin ()) {
2737                                 prev = next;
2738                                 prev--;
2739                         }
2740
2741                         nframes64_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
2742                         nframes64_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
2743
2744                         if (start > (p + n) / 2) {
2745                                 start = n;
2746                         } else {
2747                                 start = p;
2748                         }
2749                 }
2750                 break;
2751         }
2752
2753         switch (snap_mode) {
2754         case SnapNormal:
2755                 return;
2756
2757         case SnapMagnetic:
2758
2759                 if (presnap > start) {
2760                         if (presnap > (start + unit_to_frame(snap_threshold))) {
2761                                 start = presnap;
2762                         }
2763
2764                 } else if (presnap < start) {
2765                         if (presnap < (start - unit_to_frame(snap_threshold))) {
2766                                 start = presnap;
2767                         }
2768                 }
2769
2770         default:
2771                 /* handled at entry */
2772                 return;
2773
2774         }
2775 }
2776
2777
2778 void
2779 Editor::setup_toolbar ()
2780 {
2781         string pixmap_path;
2782
2783         /* Mode Buttons (tool selection) */
2784
2785         mouse_move_button.set_relief(Gtk::RELIEF_NONE);
2786         mouse_select_button.set_relief(Gtk::RELIEF_NONE);
2787         mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
2788         mouse_zoom_button.set_relief(Gtk::RELIEF_NONE);
2789         mouse_timefx_button.set_relief(Gtk::RELIEF_NONE);
2790         mouse_audition_button.set_relief(Gtk::RELIEF_NONE);
2791         // internal_edit_button.set_relief(Gtk::RELIEF_NONE);
2792
2793         HBox* mode_box = manage(new HBox);
2794         mode_box->set_border_width (2);
2795         mode_box->set_spacing(4);
2796         mouse_mode_button_box.set_spacing(1);
2797         mouse_mode_button_box.pack_start(mouse_move_button, true, true);
2798         if (!Profile->get_sae()) {
2799                 mouse_mode_button_box.pack_start(mouse_select_button, true, true);
2800         }
2801         mouse_mode_button_box.pack_start(mouse_zoom_button, true, true);
2802         if (!Profile->get_sae()) {
2803                 mouse_mode_button_box.pack_start(mouse_gain_button, true, true);
2804         }
2805         mouse_mode_button_box.pack_start(mouse_timefx_button, true, true);
2806         mouse_mode_button_box.pack_start(mouse_audition_button, true, true);
2807         mouse_mode_button_box.pack_start(internal_edit_button, true, true);
2808         mouse_mode_button_box.set_homogeneous(true);
2809
2810         vector<string> edit_mode_strings;
2811         edit_mode_strings.push_back (edit_mode_to_string (Slide));
2812         if (!Profile->get_sae()) {
2813                 edit_mode_strings.push_back (edit_mode_to_string (Splice));
2814         }
2815         edit_mode_strings.push_back (edit_mode_to_string (Lock));
2816
2817         edit_mode_selector.set_name ("EditModeSelector");
2818         set_popdown_strings (edit_mode_selector, edit_mode_strings, true);
2819         edit_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_mode_selection_done));
2820
2821         mode_box->pack_start(edit_mode_selector);
2822         mode_box->pack_start(mouse_mode_button_box);
2823
2824         mouse_mode_tearoff = manage (new TearOff (*mode_box));
2825         mouse_mode_tearoff->set_name ("MouseModeBase");
2826         mouse_mode_tearoff->tearoff_window().signal_key_press_event().connect (bind (sigc::ptr_fun (relay_key_press), &mouse_mode_tearoff->tearoff_window()), false);
2827
2828         if (Profile->get_sae()) {
2829                 mouse_mode_tearoff->set_can_be_torn_off (false);
2830         }
2831
2832         mouse_mode_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2833                                                   &mouse_mode_tearoff->tearoff_window()));
2834         mouse_mode_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2835                                                   &mouse_mode_tearoff->tearoff_window(), 1));
2836         mouse_mode_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2837                                                   &mouse_mode_tearoff->tearoff_window()));
2838         mouse_mode_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2839                                                    &mouse_mode_tearoff->tearoff_window(), 1));
2840
2841         mouse_move_button.set_mode (false);
2842         mouse_select_button.set_mode (false);
2843         mouse_gain_button.set_mode (false);
2844         mouse_zoom_button.set_mode (false);
2845         mouse_timefx_button.set_mode (false);
2846         mouse_audition_button.set_mode (false);
2847
2848         mouse_move_button.set_name ("MouseModeButton");
2849         mouse_select_button.set_name ("MouseModeButton");
2850         mouse_gain_button.set_name ("MouseModeButton");
2851         mouse_zoom_button.set_name ("MouseModeButton");
2852         mouse_timefx_button.set_name ("MouseModeButton");
2853         mouse_audition_button.set_name ("MouseModeButton");
2854
2855         internal_edit_button.set_name ("MouseModeButton");
2856
2857         mouse_move_button.unset_flags (CAN_FOCUS);
2858         mouse_select_button.unset_flags (CAN_FOCUS);
2859         mouse_gain_button.unset_flags (CAN_FOCUS);
2860         mouse_zoom_button.unset_flags (CAN_FOCUS);
2861         mouse_timefx_button.unset_flags (CAN_FOCUS);
2862         mouse_audition_button.unset_flags (CAN_FOCUS);
2863         internal_edit_button.unset_flags (CAN_FOCUS);
2864
2865         /* Zoom */
2866
2867         zoom_box.set_spacing (1);
2868         zoom_box.set_border_width (0);
2869
2870         zoom_in_button.set_name ("EditorTimeButton");
2871         zoom_in_button.set_size_request(-1,16);
2872         zoom_in_button.add (*(manage (new Image (::get_icon("zoom_in")))));
2873         zoom_in_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), false));
2874         ARDOUR_UI::instance()->tooltips().set_tip (zoom_in_button, _("Zoom In"));
2875
2876         zoom_out_button.set_name ("EditorTimeButton");
2877         zoom_out_button.set_size_request(-1,16);
2878         zoom_out_button.add (*(manage (new Image (::get_icon("zoom_out")))));
2879         zoom_out_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), true));
2880         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_button, _("Zoom Out"));
2881
2882         zoom_out_full_button.set_name ("EditorTimeButton");
2883         zoom_out_full_button.set_size_request(-1,16);
2884         zoom_out_full_button.add (*(manage (new Image (::get_icon("zoom_full")))));
2885         zoom_out_full_button.signal_clicked().connect (mem_fun(*this, &Editor::temporal_zoom_session));
2886         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to Session"));
2887
2888         zoom_focus_selector.set_name ("ZoomFocusSelector");
2889         set_popdown_strings (zoom_focus_selector, zoom_focus_strings, true);
2890         zoom_focus_selector.signal_changed().connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
2891         ARDOUR_UI::instance()->tooltips().set_tip (zoom_focus_selector, _("Zoom focus"));
2892
2893         zoom_box.pack_start (zoom_out_button, false, false);
2894         zoom_box.pack_start (zoom_in_button, false, false);
2895         zoom_box.pack_start (zoom_out_full_button, false, false);
2896
2897         /* Track zoom buttons */
2898         tav_expand_button.set_name ("TrackHeightButton");
2899         tav_expand_button.set_size_request(-1,20);
2900         tav_expand_button.add (*(manage (new Image (::get_icon("tav_exp")))));
2901         tav_expand_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::tav_zoom_step), true));
2902         ARDOUR_UI::instance()->tooltips().set_tip (tav_expand_button, _("Expand Tracks"));
2903
2904         tav_shrink_button.set_name ("TrackHeightButton");
2905         tav_shrink_button.set_size_request(-1,20);
2906         tav_shrink_button.add (*(manage (new Image (::get_icon("tav_shrink")))));
2907         tav_shrink_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::tav_zoom_step), false));
2908         ARDOUR_UI::instance()->tooltips().set_tip (tav_shrink_button, _("Shrink Tracks"));
2909
2910         track_zoom_box.set_spacing (1);
2911         track_zoom_box.set_border_width (0);
2912
2913         track_zoom_box.pack_start (tav_shrink_button, false, false);
2914         track_zoom_box.pack_start (tav_expand_button, false, false);
2915
2916         HBox* zbc = manage (new HBox);
2917         zbc->pack_start (zoom_focus_selector, PACK_SHRINK);
2918         zoom_vbox.pack_start (*zbc, PACK_SHRINK);
2919         zoom_vbox.pack_start (zoom_box, PACK_SHRINK);
2920         zoom_vbox.pack_start (track_zoom_box, PACK_SHRINK);
2921
2922         snap_box.set_spacing (1);
2923         snap_box.set_border_width (2);
2924
2925         snap_type_selector.set_name ("SnapTypeSelector");
2926         set_popdown_strings (snap_type_selector, snap_type_strings, true);
2927         snap_type_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_type_selection_done));
2928         ARDOUR_UI::instance()->tooltips().set_tip (snap_type_selector, _("Snap/Grid Units"));
2929
2930         snap_mode_selector.set_name ("SnapModeSelector");
2931         set_popdown_strings (snap_mode_selector, snap_mode_strings, true);
2932         snap_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_mode_selection_done));
2933         ARDOUR_UI::instance()->tooltips().set_tip (snap_mode_selector, _("Snap/Grid Mode"));
2934
2935         edit_point_selector.set_name ("EditPointSelector");
2936         set_popdown_strings (edit_point_selector, edit_point_strings, true);
2937         edit_point_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_point_selection_done));
2938         ARDOUR_UI::instance()->tooltips().set_tip (edit_point_selector, _("Edit point"));
2939
2940         snap_box.pack_start (edit_point_clock, false, false);
2941         snap_box.pack_start (snap_mode_selector, false, false);
2942         snap_box.pack_start (snap_type_selector, false, false);
2943         snap_box.pack_start (edit_point_selector, false, false);
2944
2945         /* Nudge */
2946
2947         HBox *nudge_box = manage (new HBox);
2948         nudge_box->set_spacing(1);
2949         nudge_box->set_border_width (2);
2950
2951         nudge_forward_button.signal_button_release_event().connect (mem_fun(*this, &Editor::nudge_forward_release), false);
2952         nudge_backward_button.signal_button_release_event().connect (mem_fun(*this, &Editor::nudge_backward_release), false);
2953
2954         nudge_box->pack_start (nudge_backward_button, false, false);
2955         nudge_box->pack_start (nudge_forward_button, false, false);
2956         nudge_box->pack_start (nudge_clock, false, false);
2957
2958
2959         /* Pack everything in... */
2960
2961         HBox* hbox = manage (new HBox);
2962         hbox->set_spacing(10);
2963
2964         tools_tearoff = manage (new TearOff (*hbox));
2965         tools_tearoff->set_name ("MouseModeBase");
2966         tools_tearoff->tearoff_window().signal_key_press_event().connect (bind (sigc::ptr_fun (relay_key_press), &tools_tearoff->tearoff_window()), false);
2967
2968         if (Profile->get_sae()) {
2969                 tools_tearoff->set_can_be_torn_off (false);
2970         }
2971
2972         tools_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2973                                              &tools_tearoff->tearoff_window()));
2974         tools_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2975                                              &tools_tearoff->tearoff_window(), 0));
2976         tools_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2977                                              &tools_tearoff->tearoff_window()));
2978         tools_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2979                                               &tools_tearoff->tearoff_window(), 0));
2980
2981         toolbar_hbox.set_spacing (10);
2982         toolbar_hbox.set_border_width (1);
2983
2984         toolbar_hbox.pack_start (*mouse_mode_tearoff, false, false);
2985         toolbar_hbox.pack_start (*tools_tearoff, false, false);
2986
2987         hbox->pack_start (snap_box, false, false);
2988         hbox->pack_start (*nudge_box, false, false);
2989         hbox->pack_start (panic_box, false, false);
2990
2991         hbox->show_all ();
2992
2993         toolbar_base.set_name ("ToolBarBase");
2994         toolbar_base.add (toolbar_hbox);
2995
2996         toolbar_frame.set_shadow_type (SHADOW_OUT);
2997         toolbar_frame.set_name ("BaseFrame");
2998         toolbar_frame.add (toolbar_base);
2999 }
3000
3001 void
3002 Editor::midi_panic ()
3003 {
3004         cerr << "MIDI panic\n";
3005
3006         if (session) {
3007                 session->midi_panic();
3008         }
3009 }
3010
3011 void
3012 Editor::setup_midi_toolbar ()
3013 {
3014         RefPtr<Action> act;
3015
3016         /* Midi sound notes */
3017         midi_sound_notes.add (*(manage (new Image (::get_icon("midi_sound_notes")))));
3018         midi_sound_notes.set_relief(Gtk::RELIEF_NONE);
3019         ARDOUR_UI::instance()->tooltips().set_tip (midi_sound_notes, _("Sound Notes"));
3020         midi_sound_notes.unset_flags (CAN_FOCUS);
3021
3022         /* Panic */
3023
3024         act = ActionManager::get_action (X_("MIDI"), X_("panic"));
3025         midi_panic_button.set_name("MidiPanicButton");
3026         act->connect_proxy (midi_panic_button);
3027
3028         panic_box.pack_start (midi_sound_notes , true, true);
3029         panic_box.pack_start (midi_panic_button, true, true);
3030 }
3031
3032 int
3033 Editor::convert_drop_to_paths (
3034                 vector<ustring>&                paths,
3035                 const RefPtr<Gdk::DragContext>& /*context*/,
3036                 gint                            /*x*/,
3037                 gint                            /*y*/,
3038                 const SelectionData&            data,
3039                 guint                           /*info*/,
3040                 guint                           /*time*/)
3041 {
3042         if (session == 0) {
3043                 return -1;
3044         }
3045
3046         vector<ustring> uris = data.get_uris();
3047
3048         if (uris.empty()) {
3049
3050                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
3051                    are actually URI lists. So do it by hand.
3052                 */
3053
3054                 if (data.get_target() != "text/plain") {
3055                         return -1;
3056                 }
3057
3058                 /* Parse the "uri-list" format that Nautilus provides,
3059                    where each pathname is delimited by \r\n.
3060
3061                    THERE MAY BE NO NULL TERMINATING CHAR!!!
3062                 */
3063
3064                 ustring txt = data.get_text();
3065                 const char* p;
3066                 const char* q;
3067
3068                 p = (const char *) malloc (txt.length() + 1);
3069                 txt.copy ((char *) p, txt.length(), 0);
3070                 ((char*)p)[txt.length()] = '\0';
3071
3072                 while (p)
3073                 {
3074                         if (*p != '#')
3075                         {
3076                                 while (g_ascii_isspace (*p))
3077                                         p++;
3078
3079                                 q = p;
3080                                 while (*q && (*q != '\n') && (*q != '\r')) {
3081                                         q++;
3082                                 }
3083
3084                                 if (q > p)
3085                                 {
3086                                         q--;
3087                                         while (q > p && g_ascii_isspace (*q))
3088                                                 q--;
3089
3090                                         if (q > p)
3091                                         {
3092                                                 uris.push_back (ustring (p, q - p + 1));
3093                                         }
3094                                 }
3095                         }
3096                         p = strchr (p, '\n');
3097                         if (p)
3098                                 p++;
3099                 }
3100
3101                 free ((void*)p);
3102
3103                 if (uris.empty()) {
3104                         return -1;
3105                 }
3106         }
3107
3108         for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
3109
3110                 if ((*i).substr (0,7) == "file://") {
3111
3112                         ustring p = *i;
3113                         PBD::url_decode (p);
3114
3115                         // scan forward past three slashes
3116
3117                         ustring::size_type slashcnt = 0;
3118                         ustring::size_type n = 0;
3119                         ustring::iterator x = p.begin();
3120
3121                         while (slashcnt < 3 && x != p.end()) {
3122                                 if ((*x) == '/') {
3123                                         slashcnt++;
3124                                 } else if (slashcnt == 3) {
3125                                         break;
3126                                 }
3127                                 ++n;
3128                                 ++x;
3129                         }
3130
3131                         if (slashcnt != 3 || x == p.end()) {
3132                                 error << _("malformed URL passed to drag-n-drop code") << endmsg;
3133                                 continue;
3134                         }
3135
3136                         paths.push_back (p.substr (n - 1));
3137                 }
3138         }
3139
3140         return 0;
3141 }
3142
3143 void
3144 Editor::new_tempo_section ()
3145
3146 {
3147 }
3148
3149 void
3150 Editor::map_transport_state ()
3151 {
3152         ENSURE_GUI_THREAD (mem_fun(*this, &Editor::map_transport_state));
3153
3154         if (session->transport_stopped()) {
3155                 have_pending_keyboard_selection = false;
3156         }
3157
3158         update_loop_range_view (true);
3159 }
3160
3161 /* UNDO/REDO */
3162
3163 Editor::State::State (PublicEditor const * e)
3164 {
3165         selection = new Selection (e);
3166 }
3167
3168 Editor::State::~State ()
3169 {
3170         delete selection;
3171 }
3172
3173 void
3174 Editor::store_state (State& state) const
3175 {
3176         *state.selection = *selection;
3177 }
3178
3179 void
3180 Editor::restore_state (State *state)
3181 {
3182         if (*selection == *state->selection) {
3183                 return;
3184         }
3185
3186         *selection = *state->selection;
3187         time_selection_changed ();
3188         region_selection_changed ();
3189
3190         /* XXX other selection change handlers? */
3191 }
3192
3193 void
3194 Editor::begin_reversible_command (string name)
3195 {
3196         if (session) {
3197                 before = &get_state();
3198                 session->begin_reversible_command (name);
3199         }
3200 }
3201
3202 void
3203 Editor::commit_reversible_command ()
3204 {
3205         if (session) {
3206                 session->commit_reversible_command (new MementoCommand<Editor>(*this, before, &get_state()));
3207         }
3208 }
3209
3210 void
3211 Editor::set_route_group_solo (Route& route, bool yn)
3212 {
3213         RouteGroup *route_group;
3214
3215         if ((route_group = route.route_group()) != 0) {
3216                 route_group->apply (&Route::set_solo, yn, this);
3217         } else {
3218                 route.set_solo (yn, this);
3219         }
3220 }
3221
3222 void
3223 Editor::set_route_group_mute (Route& route, bool yn)
3224 {
3225         RouteGroup *route_group = 0;
3226
3227         if ((route_group == route.route_group()) != 0) {
3228                 route_group->apply (&Route::set_mute, yn, this);
3229         } else {
3230                 route.set_mute (yn, this);
3231         }
3232 }
3233
3234 void
3235 Editor::history_changed ()
3236 {
3237         string label;
3238
3239         if (undo_action && session) {
3240                 if (session->undo_depth() == 0) {
3241                         label = _("Undo");
3242                 } else {
3243                         label = string_compose(_("Undo (%1)"), session->next_undo());
3244                 }
3245                 undo_action->property_label() = label;
3246         }
3247
3248         if (redo_action && session) {
3249                 if (session->redo_depth() == 0) {
3250                         label = _("Redo");
3251                 } else {
3252                         label = string_compose(_("Redo (%1)"), session->next_redo());
3253                 }
3254                 redo_action->property_label() = label;
3255         }
3256 }
3257
3258 void
3259 Editor::duplicate_dialog (bool with_dialog)
3260 {
3261         float times = 1.0f;
3262
3263         if (mouse_mode == MouseRange) {
3264                 if (selection->time.length() == 0) {
3265                         return;
3266                 }
3267         }
3268
3269         RegionSelection rs;
3270         get_regions_for_action (rs);
3271
3272         if (mouse_mode != MouseRange) {
3273
3274                 if (rs.empty()) {
3275                         return;
3276                 }
3277         }
3278
3279         if (with_dialog) {
3280
3281                 ArdourDialog win ("Duplicate");
3282                 Label  label (_("Number of Duplications:"));
3283                 Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
3284                 SpinButton spinner (adjustment, 0.0, 1);
3285                 HBox hbox;
3286
3287                 win.get_vbox()->set_spacing (12);
3288                 win.get_vbox()->pack_start (hbox);
3289                 hbox.set_border_width (6);
3290                 hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
3291
3292                 /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
3293                    place, visually. so do this by hand.
3294                 */
3295
3296                 hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
3297                 spinner.signal_activate().connect (sigc::bind (mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
3298                 spinner.grab_focus();
3299
3300                 hbox.show ();
3301                 label.show ();
3302                 spinner.show ();
3303
3304                 win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3305                 win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
3306                 win.set_default_response (RESPONSE_ACCEPT);
3307
3308                 win.set_position (WIN_POS_MOUSE);
3309
3310                 spinner.grab_focus ();
3311
3312                 switch (win.run ()) {
3313                 case RESPONSE_ACCEPT:
3314                         break;
3315                 default:
3316                         return;
3317                 }
3318
3319                 times = adjustment.get_value();
3320         }
3321
3322         if (mouse_mode == MouseRange) {
3323                 duplicate_selection (times);
3324         } else {
3325                 duplicate_some_regions (rs, times);
3326         }
3327 }
3328
3329 void
3330 Editor::show_verbose_canvas_cursor ()
3331 {
3332         verbose_canvas_cursor->raise_to_top();
3333         verbose_canvas_cursor->show();
3334         verbose_cursor_visible = true;
3335 }
3336
3337 void
3338 Editor::hide_verbose_canvas_cursor ()
3339 {
3340         verbose_canvas_cursor->hide();
3341         verbose_cursor_visible = false;
3342 }
3343
3344 double
3345 Editor::clamp_verbose_cursor_x (double x)
3346 {
3347         if (x < 0) {
3348                 x = 0;
3349         } else {
3350                 x = min (_canvas_width - 200.0, x);
3351         }
3352         return x;
3353 }
3354
3355 double
3356 Editor::clamp_verbose_cursor_y (double y)
3357 {
3358         if (y < canvas_timebars_vsize) {
3359                 y = canvas_timebars_vsize;
3360         } else {
3361                 y = min (_canvas_height - 50, y);
3362         }
3363         return y;
3364 }
3365
3366 void
3367 Editor::show_verbose_canvas_cursor_with (const string & txt)
3368 {
3369         verbose_canvas_cursor->property_text() = txt.c_str();
3370
3371         int x, y;
3372         double wx, wy;
3373
3374         track_canvas->get_pointer (x, y);
3375         track_canvas->window_to_world (x, y, wx, wy);
3376
3377         /* move it away from the mouse pointer to avoid an
3378            infinite loop of enter/leave events.
3379         */
3380
3381         wx += 20;
3382         wy += 20;
3383
3384         /* don't get too close to the edge */
3385         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (wx);
3386         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (wy);
3387
3388         show_verbose_canvas_cursor ();
3389 }
3390
3391 void
3392 Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
3393 {
3394         verbose_canvas_cursor->property_text() = txt.c_str();
3395         /* don't get too close to the edge */
3396         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (x);
3397         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (y);
3398 }
3399
3400 void
3401 Editor::set_verbose_canvas_cursor_text (const string & txt)
3402 {
3403         verbose_canvas_cursor->property_text() = txt.c_str();
3404 }
3405
3406 void
3407 Editor::set_edit_mode (EditMode m)
3408 {
3409         Config->set_edit_mode (m);
3410 }
3411
3412 void
3413 Editor::cycle_edit_mode ()
3414 {
3415         switch (Config->get_edit_mode()) {
3416         case Slide:
3417                 if (Profile->get_sae()) {
3418                         Config->set_edit_mode (Lock);
3419                 } else {
3420                         Config->set_edit_mode (Splice);
3421                 }
3422                 break;
3423         case Splice:
3424                 Config->set_edit_mode (Lock);
3425                 break;
3426         case Lock:
3427                 Config->set_edit_mode (Slide);
3428                 break;
3429         }
3430 }
3431
3432 void
3433 Editor::edit_mode_selection_done ()
3434 {
3435         if (session == 0) {
3436                 return;
3437         }
3438
3439         string choice = edit_mode_selector.get_active_text();
3440         EditMode mode = Slide;
3441
3442         if (choice == _("Splice Edit")) {
3443                 mode = Splice;
3444         } else if (choice == _("Slide Edit")) {
3445                 mode = Slide;
3446         } else if (choice == _("Lock Edit")) {
3447                 mode = Lock;
3448         }
3449
3450         Config->set_edit_mode (mode);
3451 }
3452
3453 void
3454 Editor::snap_type_selection_done ()
3455 {
3456         string choice = snap_type_selector.get_active_text();
3457         SnapType snaptype = SnapToBeat;
3458
3459         if (choice == _("Beats/3")) {
3460                 snaptype = SnapToAThirdBeat;
3461         } else if (choice == _("Beats/4")) {
3462                 snaptype = SnapToAQuarterBeat;
3463         } else if (choice == _("Beats/8")) {
3464                 snaptype = SnapToAEighthBeat;
3465         } else if (choice == _("Beats/16")) {
3466                 snaptype = SnapToASixteenthBeat;
3467         } else if (choice == _("Beats/32")) {
3468                 snaptype = SnapToAThirtysecondBeat;
3469         } else if (choice == _("Beats")) {
3470                 snaptype = SnapToBeat;
3471         } else if (choice == _("Bars")) {
3472                 snaptype = SnapToBar;
3473         } else if (choice == _("Marks")) {
3474                 snaptype = SnapToMark;
3475         } else if (choice == _("Region starts")) {
3476                 snaptype = SnapToRegionStart;
3477         } else if (choice == _("Region ends")) {
3478                 snaptype = SnapToRegionEnd;
3479         } else if (choice == _("Region bounds")) {
3480                 snaptype = SnapToRegionBoundary;
3481         } else if (choice == _("Region syncs")) {
3482                 snaptype = SnapToRegionSync;
3483         } else if (choice == _("CD Frames")) {
3484                 snaptype = SnapToCDFrame;
3485         } else if (choice == _("SMPTE Frames")) {
3486                 snaptype = SnapToSMPTEFrame;
3487         } else if (choice == _("SMPTE Seconds")) {
3488                 snaptype = SnapToSMPTESeconds;
3489         } else if (choice == _("SMPTE Minutes")) {
3490                 snaptype = SnapToSMPTEMinutes;
3491         } else if (choice == _("Seconds")) {
3492                 snaptype = SnapToSeconds;
3493         } else if (choice == _("Minutes")) {
3494                 snaptype = SnapToMinutes;
3495         }
3496
3497         RefPtr<RadioAction> ract = snap_type_action (snaptype);
3498         if (ract) {
3499                 ract->set_active ();
3500         }
3501 }
3502
3503 void
3504 Editor::snap_mode_selection_done ()
3505 {
3506         string choice = snap_mode_selector.get_active_text();
3507         SnapMode mode = SnapNormal;
3508
3509         if (choice == _("No Grid")) {
3510                 mode = SnapOff;
3511         } else if (choice == _("Grid")) {
3512                 mode = SnapNormal;
3513         } else if (choice == _("Magnetic")) {
3514                 mode = SnapMagnetic;
3515         }
3516
3517         RefPtr<RadioAction> ract = snap_mode_action (mode);
3518
3519         if (ract) {
3520                 ract->set_active (true);
3521         }
3522 }
3523
3524 void
3525 Editor::cycle_edit_point (bool with_marker)
3526 {
3527         switch (_edit_point) {
3528         case EditAtMouse:
3529                 set_edit_point_preference (EditAtPlayhead);
3530                 break;
3531         case EditAtPlayhead:
3532                 if (with_marker) {
3533                         set_edit_point_preference (EditAtSelectedMarker);
3534                 } else {
3535                         set_edit_point_preference (EditAtMouse);
3536                 }
3537                 break;
3538         case EditAtSelectedMarker:
3539                 set_edit_point_preference (EditAtMouse);
3540                 break;
3541         }
3542 }
3543
3544 void
3545 Editor::edit_point_selection_done ()
3546 {
3547         string choice = edit_point_selector.get_active_text();
3548         EditPoint ep = EditAtSelectedMarker;
3549
3550         if (choice == _("Marker")) {
3551                 set_edit_point_preference (EditAtSelectedMarker);
3552         } else if (choice == _("Playhead")) {
3553                 set_edit_point_preference (EditAtPlayhead);
3554         } else {
3555                 set_edit_point_preference (EditAtMouse);
3556         }
3557
3558         RefPtr<RadioAction> ract = edit_point_action (ep);
3559
3560         if (ract) {
3561                 ract->set_active (true);
3562         }
3563 }
3564
3565 void
3566 Editor::zoom_focus_selection_done ()
3567 {
3568         string choice = zoom_focus_selector.get_active_text();
3569         ZoomFocus focus_type = ZoomFocusLeft;
3570
3571         if (choice == _("Left")) {
3572                 focus_type = ZoomFocusLeft;
3573         } else if (choice == _("Right")) {
3574                 focus_type = ZoomFocusRight;
3575         } else if (choice == _("Center")) {
3576                 focus_type = ZoomFocusCenter;
3577         } else if (choice == _("Play")) {
3578                 focus_type = ZoomFocusPlayhead;
3579         } else if (choice == _("Edit")) {
3580                 focus_type = ZoomFocusEdit;
3581         } else if (choice == _("Active Mark")) {
3582                 focus_type = ZoomFocusEdit;
3583         } else if (choice == _("Active Mark")) {
3584                 focus_type = ZoomFocusEdit;
3585         } else {
3586                 focus_type = ZoomFocusMouse;
3587         }
3588
3589         RefPtr<RadioAction> ract = zoom_focus_action (focus_type);
3590
3591         if (ract) {
3592                 ract->set_active ();
3593         }
3594 }
3595
3596 gint
3597 Editor::edit_controls_button_release (GdkEventButton* ev)
3598 {
3599         if (Keyboard::is_context_menu_event (ev)) {
3600                 ARDOUR_UI::instance()->add_route (this);
3601         }
3602         return TRUE;
3603 }
3604
3605 gint
3606 Editor::mouse_select_button_release (GdkEventButton* ev)
3607 {
3608         /* this handles just right-clicks */
3609
3610         if (ev->button != 3) {
3611                 return false;
3612         }
3613
3614         return true;
3615 }
3616
3617 Editor::TrackViewList *
3618 Editor::get_valid_views (TimeAxisView* track, RouteGroup* group)
3619 {
3620         TrackViewList::iterator i;
3621
3622         TrackViewList* v = new TrackViewList;
3623
3624         if (track == 0 && group == 0) {
3625
3626                 /* all views */
3627
3628                 for (i = track_views.begin(); i != track_views.end (); ++i) {
3629                         v->push_back (*i);
3630                 }
3631
3632         } else if ((track != 0 && group == 0) || (track != 0 && group != 0 && !group->active_property (RouteGroup::Select))) {
3633
3634                 /* just the view for this track
3635                  */
3636
3637                 v->push_back (track);
3638
3639         } else {
3640
3641                 /* views for all tracks in the route group */
3642
3643                 for (i = track_views.begin(); i != track_views.end (); ++i) {
3644
3645                         if (group == 0 || ((*i)->route_group() == group && group->active_property (RouteGroup::Select))) {
3646                                 v->push_back (*i);
3647                         }
3648                 }
3649         }
3650
3651         return v;
3652 }
3653
3654 void
3655 Editor::set_zoom_focus (ZoomFocus f)
3656 {
3657         string str = zoom_focus_strings[(int)f];
3658
3659         if (str != zoom_focus_selector.get_active_text()) {
3660                 zoom_focus_selector.set_active_text (str);
3661         }
3662
3663         if (zoom_focus != f) {
3664                 zoom_focus = f;
3665
3666                 ZoomFocusChanged (); /* EMIT_SIGNAL */
3667
3668                 instant_save ();
3669         }
3670 }
3671
3672 void
3673 Editor::ensure_float (Window& win)
3674 {
3675         win.set_transient_for (*this);
3676 }
3677
3678 void
3679 Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
3680 {
3681         /* recover or initialize pane positions. do this here rather than earlier because
3682            we don't want the positions to change the child allocations, which they seem to do.
3683          */
3684
3685         int pos;
3686         XMLProperty* prop;
3687         char buf[32];
3688         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
3689         int width, height;
3690         static int32_t done;
3691         XMLNode* geometry;
3692
3693         width = default_width;
3694         height = default_height;
3695
3696         if ((geometry = find_named_node (*node, "geometry")) != 0) {
3697
3698                 if ((prop = geometry->property ("x_size")) == 0) {
3699                         prop = geometry->property ("x-size");
3700                 }
3701                 if (prop) {
3702                         width = atoi (prop->value());
3703                 }
3704                 if ((prop = geometry->property ("y_size")) == 0) {
3705                         prop = geometry->property ("y-size");
3706                 }
3707                 if (prop) {
3708                         height = atoi (prop->value());
3709                 }
3710         }
3711
3712         if (which == static_cast<Paned*> (&edit_pane)) {
3713
3714                 if (done) {
3715                         return;
3716                 }
3717
3718                 if (!geometry || (prop = geometry->property ("edit-pane-pos")) == 0) {
3719                         /* initial allocation is 90% to canvas, 10% to notebook */
3720                         pos = (int) floor (alloc.get_width() * 0.90f);
3721                         snprintf (buf, sizeof(buf), "%d", pos);
3722                 } else {
3723                         pos = atoi (prop->value());
3724                 }
3725
3726                 if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
3727                         edit_pane.set_position (pos);
3728                         pre_maximal_pane_position = pos;
3729                 }
3730         }
3731 }
3732
3733 void
3734 Editor::detach_tearoff (Box* /*b*/, Window* /*w*/)
3735 {
3736         cerr << "remove tearoff\n";
3737
3738         if (tools_tearoff->torn_off() &&
3739             mouse_mode_tearoff->torn_off()) {
3740                 top_hbox.remove (toolbar_frame);
3741         }
3742 }
3743
3744 void
3745 Editor::reattach_tearoff (Box* /*b*/, Window* /*w*/, int32_t /*n*/)
3746 {
3747         cerr << "reattach tearoff\n";
3748         if (toolbar_frame.get_parent() == 0) {
3749                 top_hbox.pack_end (toolbar_frame);
3750         }
3751 }
3752
3753 void
3754 Editor::set_show_measures (bool yn)
3755 {
3756         if (_show_measures != yn) {
3757                 hide_measures ();
3758
3759                 if ((_show_measures = yn) == true) {
3760                         if (tempo_lines)
3761                                 tempo_lines->show();
3762                         draw_measures ();
3763                 }
3764                 instant_save ();
3765         }
3766 }
3767
3768 void
3769 Editor::toggle_follow_playhead ()
3770 {
3771         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3772         if (act) {
3773                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3774                 set_follow_playhead (tact->get_active());
3775         }
3776 }
3777
3778 void
3779 Editor::set_follow_playhead (bool yn)
3780 {
3781         if (_follow_playhead != yn) {
3782                 if ((_follow_playhead = yn) == true) {
3783                         /* catch up */
3784                         update_current_screen ();
3785                 }
3786                 instant_save ();
3787         }
3788 }
3789
3790 void
3791 Editor::toggle_xfade_active (boost::weak_ptr<Crossfade> wxfade)
3792 {
3793         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3794         if (xfade) {
3795                 xfade->set_active (!xfade->active());
3796         }
3797 }
3798
3799 void
3800 Editor::toggle_xfade_length (boost::weak_ptr<Crossfade> wxfade)
3801 {
3802         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3803         if (xfade) {
3804                 xfade->set_follow_overlap (!xfade->following_overlap());
3805         }
3806 }
3807
3808 void
3809 Editor::edit_xfade (boost::weak_ptr<Crossfade> wxfade)
3810 {
3811         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3812
3813         if (!xfade) {
3814                 return;
3815         }
3816
3817         CrossfadeEditor cew (*session, xfade, xfade->fade_in().get_min_y(), 1.0);
3818
3819         ensure_float (cew);
3820
3821         switch (cew.run ()) {
3822         case RESPONSE_ACCEPT:
3823                 break;
3824         default:
3825                 return;
3826         }
3827
3828         cew.apply ();
3829         xfade->StateChanged (Change (~0));
3830 }
3831
3832 PlaylistSelector&
3833 Editor::playlist_selector () const
3834 {
3835         return *_playlist_selector;
3836 }
3837
3838 Evoral::MusicalTime
3839 Editor::get_grid_type_as_beats (bool& success, nframes64_t position)
3840 {
3841         success = true;
3842
3843         switch (snap_type) {
3844         case SnapToBeat:
3845                 return 1.0;
3846                 break;
3847
3848         case SnapToAThirtysecondBeat:
3849                 return 1.0/32.0;
3850                 break;
3851
3852         case SnapToASixteenthBeat:
3853                 return 1.0/16.0;
3854                 break;
3855
3856         case SnapToAEighthBeat:
3857                 return 1.0/8.0;
3858                 break;
3859
3860         case SnapToAQuarterBeat:
3861                 return 1.0/4.0;
3862                 break;
3863
3864         case SnapToAThirdBeat:
3865                 return 1.0/3.0;
3866                 break;
3867
3868         case SnapToBar:
3869                 if (session) {
3870                         return session->tempo_map().meter_at (position).beats_per_bar();
3871                 }
3872                 break;
3873
3874         case SnapToCDFrame:
3875         case SnapToSMPTEFrame:
3876         case SnapToSMPTESeconds:
3877         case SnapToSMPTEMinutes:
3878         case SnapToSeconds:
3879         case SnapToMinutes:
3880         case SnapToRegionStart:
3881         case SnapToRegionEnd:
3882         case SnapToRegionSync:
3883         case SnapToRegionBoundary:
3884         default:
3885                 success = false;
3886                 break;
3887         }
3888
3889         return 0.0;
3890 }
3891
3892 nframes64_t
3893 Editor::get_nudge_distance (nframes64_t pos, nframes64_t& next)
3894 {
3895         nframes64_t ret;
3896
3897         ret = nudge_clock.current_duration (pos);
3898         next = ret + 1; /* XXXX fix me */
3899
3900         return ret;
3901 }
3902
3903 void
3904 Editor::end_location_changed (Location* location)
3905 {
3906         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
3907         //reset_scrolling_region ();
3908         nframes64_t session_span = location->start() + (nframes64_t) floorf (current_page_frames() * 0.10f);
3909         horizontal_adjustment.set_upper (session_span / frames_per_unit);
3910 }
3911
3912 int
3913 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
3914 {
3915         ArdourDialog dialog ("playlist deletion dialog");
3916         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
3917                                         "If left alone, no audio files used by it will be cleaned.\n"
3918                                         "If deleted, audio files used by it alone by will cleaned."),
3919                                       pl->name()));
3920
3921         dialog.set_position (WIN_POS_CENTER);
3922         dialog.get_vbox()->pack_start (label);
3923
3924         label.show ();
3925
3926         dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
3927         dialog.add_button (_("Keep playlist"), RESPONSE_REJECT);
3928         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
3929
3930         switch (dialog.run ()) {
3931         case RESPONSE_ACCEPT:
3932                 /* delete the playlist */
3933                 return 0;
3934                 break;
3935
3936         case RESPONSE_REJECT:
3937                 /* keep the playlist */
3938                 return 1;
3939                 break;
3940
3941         default:
3942                 break;
3943         }
3944
3945         return -1;
3946 }
3947
3948 bool
3949 Editor::audio_region_selection_covers (nframes64_t where)
3950 {
3951         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
3952                 if ((*a)->region()->covers (where)) {
3953                         return true;
3954                 }
3955         }
3956
3957         return false;
3958 }
3959
3960 void
3961 Editor::prepare_for_cleanup ()
3962 {
3963         cut_buffer->clear_regions ();
3964         cut_buffer->clear_playlists ();
3965
3966         selection->clear_regions ();
3967         selection->clear_playlists ();
3968
3969         _regions->suspend_redisplay ();
3970 }
3971
3972 void
3973 Editor::finish_cleanup ()
3974 {
3975         _regions->resume_redisplay ();
3976 }
3977
3978 Location*
3979 Editor::transport_loop_location()
3980 {
3981         if (session) {
3982                 return session->locations()->auto_loop_location();
3983         } else {
3984                 return 0;
3985         }
3986 }
3987
3988 Location*
3989 Editor::transport_punch_location()
3990 {
3991         if (session) {
3992                 return session->locations()->auto_punch_location();
3993         } else {
3994                 return 0;
3995         }
3996 }
3997
3998 bool
3999 Editor::control_layout_scroll (GdkEventScroll* ev)
4000 {
4001         switch (ev->direction) {
4002         case GDK_SCROLL_UP:
4003                 scroll_tracks_up_line ();
4004                 return true;
4005                 break;
4006
4007         case GDK_SCROLL_DOWN:
4008                 scroll_tracks_down_line ();
4009                 return true;
4010
4011         default:
4012                 /* no left/right handling yet */
4013                 break;
4014         }
4015
4016         return false;
4017 }
4018
4019 void
4020 Editor::session_state_saved (string snap_name)
4021 {
4022         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::session_state_saved), snap_name));
4023
4024         _snapshots->redisplay ();
4025 }
4026
4027 void
4028 Editor::maximise_editing_space ()
4029 {
4030         mouse_mode_tearoff->set_visible (false);
4031         tools_tearoff->set_visible (false);
4032
4033         pre_maximal_pane_position = edit_pane.get_position();
4034         pre_maximal_editor_width = this->get_width();
4035
4036         if(post_maximal_pane_position == 0) {
4037                 post_maximal_pane_position = edit_pane.get_width();
4038         }
4039
4040         fullscreen();
4041
4042         if(post_maximal_editor_width) {
4043                 edit_pane.set_position (post_maximal_pane_position -
4044                         abs(post_maximal_editor_width - pre_maximal_editor_width));
4045         } else {
4046                 edit_pane.set_position (post_maximal_pane_position);
4047         }
4048 }
4049
4050 void
4051 Editor::restore_editing_space ()
4052 {
4053         // user changed width of pane during fullscreen
4054
4055         if(post_maximal_pane_position != edit_pane.get_position()) {
4056                 post_maximal_pane_position = edit_pane.get_position();
4057         }
4058
4059         unfullscreen();
4060
4061         mouse_mode_tearoff->set_visible (true);
4062         tools_tearoff->set_visible (true);
4063         post_maximal_editor_width = this->get_width();
4064
4065         edit_pane.set_position (pre_maximal_pane_position + abs(this->get_width() - pre_maximal_editor_width));
4066 }
4067
4068 /**
4069  *  Make new playlists for a given track and also any others that belong
4070  *  to the same active route group with the `edit' property.
4071  *  @param v Track.
4072  */
4073
4074 void
4075 Editor::new_playlists (TimeAxisView* v)
4076 {
4077         begin_reversible_command (_("new playlists"));
4078         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4079         session->get_playlists(playlists);
4080         mapover_tracks (bind (mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, RouteGroup::Edit);
4081         commit_reversible_command ();
4082 }
4083
4084 /**
4085  *  Use a copy of the current playlist for a given track and also any others that belong
4086  *  to the same active route group with the `edit' property.
4087  *  @param v Track.
4088  */
4089
4090 void
4091 Editor::copy_playlists (TimeAxisView* v)
4092 {
4093         begin_reversible_command (_("copy playlists"));
4094         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4095         session->get_playlists(playlists);
4096         mapover_tracks (bind (mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, RouteGroup::Edit);
4097         commit_reversible_command ();
4098 }
4099
4100 /** Clear the current playlist for a given track and also any others that belong
4101  *  to the same active route group with the `edit' property.
4102  *  @param v Track.
4103  */
4104
4105 void
4106 Editor::clear_playlists (TimeAxisView* v)
4107 {
4108         begin_reversible_command (_("clear playlists"));
4109         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4110         session->get_playlists(playlists);
4111         mapover_tracks (mem_fun (*this, &Editor::mapped_clear_playlist), v, RouteGroup::Edit);
4112         commit_reversible_command ();
4113 }
4114
4115 void
4116 Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4117 {
4118         atv.use_new_playlist (sz > 1 ? false : true, playlists);
4119 }
4120
4121 void
4122 Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4123 {
4124         atv.use_copy_playlist (sz > 1 ? false : true, playlists);
4125 }
4126
4127 void
4128 Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t /*sz*/)
4129 {
4130         atv.clear_playlist ();
4131 }
4132
4133 bool
4134 Editor::on_key_press_event (GdkEventKey* ev)
4135 {
4136         return key_press_focus_accelerator_handler (*this, ev);
4137 }
4138
4139 bool
4140 Editor::on_key_release_event (GdkEventKey* ev)
4141 {
4142         return Gtk::Window::on_key_release_event (ev);
4143         // return key_press_focus_accelerator_handler (*this, ev);
4144 }
4145
4146 void
4147 Editor::reset_x_origin (nframes64_t frame)
4148 {
4149         //cerr << "resetting x origin" << endl;
4150         queue_visual_change (frame);
4151 }
4152
4153 void
4154 Editor::reset_y_origin (double y)
4155 {
4156         queue_visual_change_y (y);
4157 }
4158
4159 void
4160 Editor::reset_zoom (double fpu)
4161 {
4162         queue_visual_change (fpu);
4163 }
4164
4165 void
4166 Editor::reposition_and_zoom (nframes64_t frame, double fpu)
4167 {
4168         //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
4169         reset_x_origin (frame);
4170         reset_zoom (fpu);
4171
4172         if (!no_save_visual) {
4173                 undo_visual_stack.push_back (current_visual_state(false));
4174         }
4175 }
4176
4177 Editor::VisualState*
4178 Editor::current_visual_state (bool with_tracks)
4179 {
4180         VisualState* vs = new VisualState;
4181         vs->y_position = vertical_adjustment.get_value();
4182         vs->frames_per_unit = frames_per_unit;
4183         vs->leftmost_frame = leftmost_frame;
4184         vs->zoom_focus = zoom_focus;
4185         vs->zoomed_to_region = zoomed_to_region;
4186
4187         if (with_tracks) {
4188                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4189                         vs->track_states.push_back (TAVState ((*i), &(*i)->get_state()));
4190                 }
4191         }
4192
4193         return vs;
4194 }
4195
4196 void
4197 Editor::undo_visual_state ()
4198 {
4199         if (undo_visual_stack.empty()) {
4200                 return;
4201         }
4202
4203         VisualState* vs = undo_visual_stack.back();
4204         undo_visual_stack.pop_back();
4205         use_visual_state (*vs);
4206         redo_visual_stack.push_back (vs);
4207 }
4208
4209 void
4210 Editor::redo_visual_state ()
4211 {
4212         if (redo_visual_stack.empty()) {
4213                 return;
4214         }
4215
4216         VisualState* vs = redo_visual_stack.back();
4217         redo_visual_stack.pop_back();
4218         use_visual_state (*vs);
4219         undo_visual_stack.push_back (vs);
4220 }
4221
4222 void
4223 Editor::swap_visual_state ()
4224 {
4225         if (undo_visual_stack.empty()) {
4226                 redo_visual_state ();
4227         } else {
4228                 undo_visual_state ();
4229         }
4230 }
4231
4232 void
4233 Editor::use_visual_state (VisualState& vs)
4234 {
4235         no_save_visual = true;
4236
4237         _routes->suspend_redisplay ();
4238
4239         vertical_adjustment.set_value (vs.y_position);
4240
4241         set_zoom_focus (vs.zoom_focus);
4242         reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
4243         zoomed_to_region = vs.zoomed_to_region;
4244
4245         for (list<TAVState>::iterator i = vs.track_states.begin(); i != vs.track_states.end(); ++i) {
4246                 TrackViewList::iterator t;
4247
4248                 /* check if the track still exists - it could have been deleted */
4249
4250                 if ((t = find (track_views.begin(), track_views.end(), i->first)) != track_views.end()) {
4251                         (*t)->set_state (*(i->second), Stateful::loading_state_version);
4252                 }
4253         }
4254
4255
4256         if (!vs.track_states.empty()) {
4257                 _routes->update_visibility ();
4258         }
4259
4260         _routes->resume_redisplay ();
4261
4262         no_save_visual = false;
4263 }
4264
4265 void
4266 Editor::set_frames_per_unit (double fpu)
4267 {
4268         /* this is the core function that controls the zoom level of the canvas. it is called
4269            whenever one or more calls are made to reset_zoom(). it executes in an idle handler.
4270         */
4271
4272         if (fpu == frames_per_unit) {
4273                 return;
4274         }
4275
4276         if (fpu < 2.0) {
4277                 fpu = 2.0;
4278         }
4279
4280
4281         /* don't allow zooms that fit more than the maximum number
4282            of frames into an 800 pixel wide space.
4283         */
4284
4285         if (max_frames / fpu < 800.0) {
4286                 return;
4287         }
4288
4289         if (tempo_lines)
4290                 tempo_lines->tempo_map_changed();
4291
4292         frames_per_unit = fpu;
4293         post_zoom ();
4294 }
4295
4296 void
4297 Editor::post_zoom ()
4298 {
4299         nframes64_t cef = 0;
4300
4301         // convert fpu to frame count
4302
4303         nframes64_t frames = (nframes64_t) floor (frames_per_unit * _canvas_width);
4304
4305         if (frames_per_unit != zoom_range_clock.current_duration()) {
4306                 zoom_range_clock.set (frames);
4307         }
4308
4309         if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
4310                 if (!selection->tracks.empty()) {
4311                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4312                                 (*i)->reshow_selection (selection->time);
4313                         }
4314                 } else {
4315                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4316                                 (*i)->reshow_selection (selection->time);
4317                         }
4318                 }
4319         }
4320
4321         leftmost_frame = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
4322
4323         ZoomChanged (); /* EMIT_SIGNAL */
4324
4325         reset_hscrollbar_stepping ();
4326
4327         if (session) {
4328                 cef = session->current_end_frame() + (current_page_frames() / 10);// Add a little extra so we can see the end marker
4329         }
4330         horizontal_adjustment.set_upper (cef / frames_per_unit);
4331
4332         //reset_scrolling_region ();
4333
4334         if (playhead_cursor) {
4335                 playhead_cursor->set_position (playhead_cursor->current_frame);
4336         }
4337
4338         refresh_location_display();
4339         _summary->set_overlays_dirty ();
4340
4341         instant_save ();
4342 }
4343
4344 void
4345 Editor::queue_visual_change (nframes64_t where)
4346 {
4347         pending_visual_change.add (VisualChange::TimeOrigin);
4348
4349         /* if we're moving beyond the end, make sure the upper limit of the horizontal adjustment
4350            can reach.
4351         */
4352
4353         if (where > session->current_end_frame()) {
4354                 horizontal_adjustment.set_upper ((where + current_page_frames()) / frames_per_unit);
4355         }
4356
4357         pending_visual_change.time_origin = where;
4358
4359         ensure_visual_change_idle_handler ();
4360 }
4361
4362 void
4363 Editor::queue_visual_change (double fpu)
4364 {
4365         pending_visual_change.add (VisualChange::ZoomLevel);
4366         pending_visual_change.frames_per_unit = fpu;
4367
4368         ensure_visual_change_idle_handler ();
4369
4370 }
4371
4372 void
4373 Editor::queue_visual_change_y (double y)
4374 {
4375         pending_visual_change.add (VisualChange::YOrigin);
4376         pending_visual_change.y_origin = y;
4377
4378         ensure_visual_change_idle_handler ();
4379 }
4380
4381 void
4382 Editor::ensure_visual_change_idle_handler ()
4383 {
4384         if (pending_visual_change.idle_handler_id < 0) {
4385                 pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
4386         }
4387 }
4388
4389 int
4390 Editor::_idle_visual_changer (void* arg)
4391 {
4392         return static_cast<Editor*>(arg)->idle_visual_changer ();
4393 }
4394
4395 int
4396 Editor::idle_visual_changer ()
4397 {
4398         VisualChange::Type p = pending_visual_change.pending;
4399         pending_visual_change.pending = (VisualChange::Type) 0;
4400
4401 #ifdef FIX_THIS_FOR_V3
4402         double last_time_origin = horizontal_adjustment.get_value();
4403 #endif
4404
4405         if (p & VisualChange::ZoomLevel) {
4406                 set_frames_per_unit (pending_visual_change.frames_per_unit);
4407
4408                 compute_fixed_ruler_scale ();
4409                 compute_current_bbt_points(pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4410                 compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4411                 update_tempo_based_rulers ();
4412         }
4413         if (p & VisualChange::TimeOrigin) {
4414                 horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
4415         }
4416         if (p & VisualChange::YOrigin) {
4417                 vertical_adjustment.set_value (pending_visual_change.y_origin);
4418         }
4419
4420         nframes64_t csf=0, cef=0;
4421         nframes64_t current_time_origin = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
4422
4423         if (session) {
4424                 csf = session->current_start_frame();
4425                 cef = session->current_end_frame();
4426         }
4427
4428         /* if we seek beyond the current end of the canvas, move the end */
4429
4430 #ifdef FIX_THIS_FOR_V3
4431         if (last_time_origin == horizontal_adjustment.get_value() ) {
4432                 /* changed signal not emitted */
4433                 update_fixed_rulers ();
4434                 redisplay_tempo (true);
4435         }
4436 #endif
4437
4438         if (current_time_origin != pending_visual_change.time_origin) {
4439                 cef += current_page_frames() / 10; // Add a little extra so we can see the end marker
4440                 horizontal_adjustment.set_upper (cef / frames_per_unit);
4441                 horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
4442         } else {
4443                 update_fixed_rulers();
4444                 redisplay_tempo (true);
4445         }
4446
4447         _summary->set_overlays_dirty ();
4448
4449         //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
4450         pending_visual_change.idle_handler_id = -1;
4451         return 0; /* this is always a one-shot call */
4452 }
4453
4454 struct EditorOrderTimeAxisSorter {
4455     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
4456             return a->order () < b->order ();
4457     }
4458 };
4459
4460 void
4461 Editor::sort_track_selection (TrackSelection* sel)
4462 {
4463         EditorOrderTimeAxisSorter cmp;
4464
4465         if (sel) {
4466                 sel->sort (cmp);
4467         } else {
4468                 selection->tracks.sort (cmp);
4469         }
4470 }
4471
4472 nframes64_t
4473 Editor::get_preferred_edit_position (bool ignore_playhead)
4474 {
4475         bool ignored;
4476         nframes64_t where = 0;
4477         EditPoint ep = _edit_point;
4478
4479         if (entered_marker) {
4480                 return entered_marker->position();
4481         }
4482
4483         if (ignore_playhead && ep == EditAtPlayhead) {
4484                 ep = EditAtSelectedMarker;
4485         }
4486
4487         switch (ep) {
4488         case EditAtPlayhead:
4489                 where = session->audible_frame();
4490                 break;
4491
4492         case EditAtSelectedMarker:
4493                 if (!selection->markers.empty()) {
4494                         bool is_start;
4495                         Location* loc = find_location_from_marker (selection->markers.front(), is_start);
4496                         if (loc) {
4497                                 if (is_start) {
4498                                         where =  loc->start();
4499                                 } else {
4500                                         where = loc->end();
4501                                 }
4502                                 break;
4503                         }
4504                 }
4505                 /* fallthru */
4506
4507         default:
4508         case EditAtMouse:
4509                 if (!mouse_frame (where, ignored)) {
4510                         /* XXX not right but what can we do ? */
4511                         return 0;
4512                 }
4513                 snap_to (where);
4514                 break;
4515         }
4516
4517         return where;
4518 }
4519
4520 void
4521 Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
4522 {
4523         if (!session) return;
4524
4525         begin_reversible_command (cmd);
4526
4527         Location* tll;
4528
4529         if ((tll = transport_loop_location()) == 0) {
4530                 Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoLoop);
4531                 XMLNode &before = session->locations()->get_state();
4532                 session->locations()->add (loc, true);
4533                 session->set_auto_loop_location (loc);
4534                 XMLNode &after = session->locations()->get_state();
4535                 session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
4536         } else {
4537                 XMLNode &before = tll->get_state();
4538                 tll->set_hidden (false, this);
4539                 tll->set (start, end);
4540                 XMLNode &after = tll->get_state();
4541                 session->add_command (new MementoCommand<Location>(*tll, &before, &after));
4542         }
4543
4544         commit_reversible_command ();
4545 }
4546
4547 void
4548 Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
4549 {
4550         if (!session) return;
4551
4552         begin_reversible_command (cmd);
4553
4554         Location* tpl;
4555
4556         if ((tpl = transport_punch_location()) == 0) {
4557                 Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoPunch);
4558                 XMLNode &before = session->locations()->get_state();
4559                 session->locations()->add (loc, true);
4560                 session->set_auto_loop_location (loc);
4561                 XMLNode &after = session->locations()->get_state();
4562                 session->add_command (new MementoCommand<Locations>(*(session->locations()), &before, &after));
4563         }
4564         else {
4565                 XMLNode &before = tpl->get_state();
4566                 tpl->set_hidden (false, this);
4567                 tpl->set (start, end);
4568                 XMLNode &after = tpl->get_state();
4569                 session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
4570         }
4571
4572         commit_reversible_command ();
4573 }
4574
4575 /** Find regions which exist at a given time, and optionally on a given list of tracks.
4576  *  @param rs List to which found regions are added.
4577  *  @param where Time to look at.
4578  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
4579  */
4580 void
4581 Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
4582 {
4583         const TrackSelection* tracks;
4584
4585         if (ts.empty()) {
4586                 tracks = &track_views;
4587         } else {
4588                 tracks = &ts;
4589         }
4590
4591         for (TrackSelection::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4592                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4593                 if (rtv) {
4594                         boost::shared_ptr<Diskstream> ds;
4595                         boost::shared_ptr<Playlist> pl;
4596
4597                         if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
4598
4599                                 Playlist::RegionList* regions = pl->regions_at (
4600                                                 (nframes64_t) floor ( (double)where * ds->speed()));
4601
4602                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4603                                         RegionView* rv = rtv->view()->find_view (*i);
4604                                         if (rv) {
4605                                                 rs.add (rv);
4606                                         }
4607                                 }
4608
4609                                 delete regions;
4610                         }
4611                 }
4612         }
4613 }
4614
4615 void
4616 Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackSelection& ts) const
4617 {
4618         const TrackSelection* tracks;
4619
4620         if (ts.empty()) {
4621                 tracks = &track_views;
4622         } else {
4623                 tracks = &ts;
4624         }
4625
4626         for (TrackSelection::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4627                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4628                 if (rtv) {
4629                         boost::shared_ptr<Diskstream> ds;
4630                         boost::shared_ptr<Playlist> pl;
4631
4632                         if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
4633
4634                                 Playlist::RegionList* regions = pl->regions_touched (
4635                                                 (nframes64_t) floor ( (double)where * ds->speed()), max_frames);
4636
4637                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4638
4639                                         RegionView* rv = rtv->view()->find_view (*i);
4640
4641                                         if (rv) {
4642                                                 rs.push_back (rv);
4643                                         }
4644                                 }
4645
4646                                 delete regions;
4647                         }
4648                 }
4649         }
4650 }
4651
4652 /** Find all regions which are either:
4653  *      - selected or
4654  *      - the entered_regionview (if allow_entered == true) or
4655  *      - under the preferred edit position AND on a selected track, or on a track
4656  *        which is in the same active edit-enable route group as a selected region (if allow_edit_position == true)
4657  *  @param rs Returned region list.
4658  *  @param allow_entered true to include the entered_regionview in the list.
4659  */
4660 void
4661 Editor::get_regions_for_action (RegionSelection& rs, bool allow_entered, bool allow_edit_position)
4662 {
4663         /* Start with selected regions */
4664         rs = selection->regions;
4665
4666         /* Add the entered_regionview, if requested */
4667         if (allow_entered && entered_regionview) {
4668                 rs.add (entered_regionview);
4669         }
4670
4671         if (allow_edit_position) {
4672
4673                 TrackSelection tracks = selection->tracks;
4674
4675                 /* tracks is currently the set of selected tracks; add any other tracks that
4676                  * have regions that are in the same edit-activated route group as one of
4677                  * our regions */
4678                 for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4679
4680                         RouteGroup* g = (*i)->get_time_axis_view().route_group ();
4681                         if (g && g->active_property (RouteGroup::Edit)) {
4682                                 tracks.add (axis_views_from_routes (g->route_list()));
4683                         }
4684                 }
4685
4686                 /* now find regions that are at the edit position on those tracks */
4687                 nframes64_t const where = get_preferred_edit_position ();
4688                 get_regions_at (rs, where, tracks);
4689         }
4690 }
4691
4692 void
4693 Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
4694 {
4695         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4696
4697                 RouteTimeAxisView* tatv;
4698
4699                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4700
4701                         boost::shared_ptr<Playlist> pl;
4702                         vector<boost::shared_ptr<Region> > results;
4703                         RegionView* marv;
4704                         boost::shared_ptr<Diskstream> ds;
4705
4706                         if ((ds = tatv->get_diskstream()) == 0) {
4707                                 /* bus */
4708                                 continue;
4709                         }
4710
4711                         if ((pl = (ds->playlist())) != 0) {
4712                                 pl->get_region_list_equivalent_regions (region, results);
4713                         }
4714
4715                         for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
4716                                 if ((marv = tatv->view()->find_view (*ir)) != 0) {
4717                                         regions.push_back (marv);
4718                                 }
4719                         }
4720
4721                 }
4722         }
4723 }
4724
4725 void
4726 Editor::show_rhythm_ferret ()
4727 {
4728         if (rhythm_ferret == 0) {
4729                 rhythm_ferret = new RhythmFerret(*this);
4730         }
4731
4732         rhythm_ferret->set_session (session);
4733         rhythm_ferret->show ();
4734         rhythm_ferret->present ();
4735 }
4736
4737 void
4738 Editor::show_bundle_manager ()
4739 {
4740         if (_bundle_manager == 0) {
4741                 _bundle_manager = new BundleManager (*session);
4742         }
4743
4744         _bundle_manager->show ();
4745 }
4746
4747 void
4748 Editor::show_global_port_matrix (ARDOUR::DataType t)
4749 {
4750         if (_global_port_matrix[t] == 0) {
4751                 _global_port_matrix[t] = new GlobalPortMatrixWindow (*session, t);
4752         }
4753
4754         _global_port_matrix[t]->show ();
4755 }
4756
4757 void
4758 Editor::first_idle ()
4759 {
4760         MessageDialog* dialog = 0;
4761
4762         if (track_views.size() > 1) {
4763                 dialog = new MessageDialog (*this,
4764                                             _("Please wait while Ardour loads visual data"),
4765                                             true,
4766                                             Gtk::MESSAGE_INFO,
4767                                             Gtk::BUTTONS_NONE);
4768                 dialog->present ();
4769                 ARDOUR_UI::instance()->flush_pending ();
4770         }
4771
4772         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
4773                 (*t)->first_idle();
4774         }
4775
4776         // first idle adds route children (automation tracks), so we need to redisplay here
4777         _routes->redisplay ();
4778
4779         delete dialog;
4780
4781         _have_idled = true;
4782 }
4783
4784 static gboolean
4785 _idle_resizer (gpointer arg)
4786 {
4787         return ((Editor*)arg)->idle_resize ();
4788 }
4789
4790 void
4791 Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
4792 {
4793         if (resize_idle_id < 0) {
4794                 resize_idle_id = g_idle_add (_idle_resizer, this);
4795                 _pending_resize_amount = 0;
4796         }
4797
4798         /* make a note of the smallest resulting height, so that we can clamp the
4799            lower limit at TimeAxisView::hSmall */
4800
4801         int32_t min_resulting = INT32_MAX;
4802
4803         _pending_resize_amount += h;
4804         _pending_resize_view = view;
4805
4806         min_resulting = min (min_resulting, int32_t (_pending_resize_view->current_height()) + _pending_resize_amount);
4807
4808         if (selection->tracks.contains (_pending_resize_view)) {
4809                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4810                         min_resulting = min (min_resulting, int32_t ((*i)->current_height()) + _pending_resize_amount);
4811                 }
4812         }
4813
4814         if (min_resulting < 0) {
4815                 min_resulting = 0;
4816         }
4817
4818         /* clamp */
4819         if (uint32_t (min_resulting) < TimeAxisView::hSmall) {
4820                 _pending_resize_amount += TimeAxisView::hSmall - min_resulting;
4821         }
4822 }
4823
4824 /** Handle pending resizing of tracks */
4825 bool
4826 Editor::idle_resize ()
4827 {
4828         _pending_resize_view->idle_resize (_pending_resize_view->current_height() + _pending_resize_amount);
4829
4830         if (dynamic_cast<AutomationTimeAxisView*> (_pending_resize_view) == 0 &&
4831             selection->tracks.contains (_pending_resize_view)) {
4832
4833                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4834                         if (*i != _pending_resize_view) {
4835                                 (*i)->idle_resize ((*i)->current_height() + _pending_resize_amount);
4836                         }
4837                 }
4838         }
4839
4840         flush_canvas ();
4841         _group_tabs->set_dirty ();
4842         resize_idle_id = -1;
4843
4844         return false;
4845 }
4846
4847 void
4848 Editor::located ()
4849 {
4850         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::located));
4851
4852         _pending_locate_request = false;
4853 }
4854
4855 void
4856 Editor::region_view_added (RegionView *)
4857 {
4858         _summary->set_dirty ();
4859 }
4860
4861 void
4862 Editor::streamview_height_changed ()
4863 {
4864         _summary->set_dirty ();
4865 }
4866
4867 TimeAxisView*
4868 Editor::axis_view_from_route (Route* r) const
4869 {
4870         TrackViewList::const_iterator j = track_views.begin ();
4871         while (j != track_views.end()) {
4872                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*j);
4873                 if (rtv && rtv->route().get() == r) {
4874                         return rtv;
4875                 }
4876                 ++j;
4877         }
4878
4879         return 0;
4880 }
4881
4882
4883 TrackSelection
4884 Editor::axis_views_from_routes (list<Route*> r) const
4885 {
4886         TrackSelection t;
4887
4888         for (list<Route*>::const_iterator i = r.begin(); i != r.end(); ++i) {
4889                 TimeAxisView* tv = axis_view_from_route (*i);
4890                 if (tv) {
4891                         t.push_back (tv);
4892                 }
4893         }
4894
4895         return t;
4896 }
4897
4898
4899 void
4900 Editor::handle_new_route (RouteList& routes)
4901 {
4902         ENSURE_GUI_THREAD (bind (mem_fun (*this, &Editor::handle_new_route), routes));
4903
4904         RouteTimeAxisView *rtv;
4905         list<RouteTimeAxisView*> new_views;
4906
4907         for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
4908                 boost::shared_ptr<Route> route = (*x);
4909
4910                 if (route->is_hidden()) {
4911                         continue;
4912                 }
4913
4914                 DataType dt = route->input()->default_type();
4915
4916                 if (dt == ARDOUR::DataType::AUDIO) {
4917                         rtv = new AudioTimeAxisView (*this, *session, route, *track_canvas);
4918                 } else if (dt == ARDOUR::DataType::MIDI) {
4919                         rtv = new MidiTimeAxisView (*this, *session, route, *track_canvas);
4920                 } else {
4921                         throw unknown_type();
4922                 }
4923
4924                 new_views.push_back (rtv);
4925                 track_views.push_back (rtv);
4926
4927                 rtv->effective_gain_display ();
4928
4929                 rtv->view()->RegionViewAdded.connect (mem_fun (*this, &Editor::region_view_added));
4930                 rtv->view()->HeightChanged.connect (mem_fun (*this, &Editor::streamview_height_changed));
4931
4932                 rtv->GoingAway.connect (bind (mem_fun(*this, &Editor::remove_route), rtv));
4933         }
4934
4935         _routes->routes_added (new_views);
4936
4937         if (show_editor_mixer_when_tracks_arrive) {
4938                 show_editor_mixer (true);
4939         }
4940
4941         editor_list_button.set_sensitive (true);
4942
4943         _summary->set_dirty ();
4944 }
4945
4946 void
4947 Editor::remove_route (TimeAxisView *tv)
4948 {
4949         ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::remove_route), tv));
4950
4951         TrackViewList::iterator i;
4952         boost::shared_ptr<Route> route;
4953         TimeAxisView* next_tv = 0;
4954
4955         if (tv == entered_track) {
4956                 entered_track = 0;
4957         }
4958
4959         if ((i = find (track_views.begin(), track_views.end(), tv)) != track_views.end()) {
4960
4961                i = track_views.erase (i);
4962
4963                if (track_views.empty()) {
4964                        next_tv = 0;
4965                } else if (i == track_views.end()) {
4966                        next_tv = track_views.front();
4967                } else {
4968                       next_tv = (*i);
4969                }
4970         }
4971
4972         if (current_mixer_strip && current_mixer_strip->route() == route) {
4973
4974                if (next_tv) {
4975                        set_selected_mixer_strip (*next_tv);
4976                } else {
4977                        /* make the editor mixer strip go away setting the
4978                         * button to inactive (which also unticks the menu option)
4979                         */
4980
4981                        ActionManager::uncheck_toggleaction ("<Actions>/Editor/show-editor-mixer");
4982                }
4983         }
4984 }
4985
4986 void
4987 Editor::hide_track_in_display (TimeAxisView& tv, bool /*temponly*/)
4988 {
4989         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4990
4991         if (rtv && current_mixer_strip && (rtv->route() == current_mixer_strip->route())) {
4992                 // this will hide the mixer strip
4993                 set_selected_mixer_strip (tv);
4994         }
4995
4996         _routes->hide_track_in_display (tv);
4997 }
4998
4999 bool
5000 Editor::sync_track_view_list_and_routes ()
5001 {
5002         track_views = TrackSelection (_routes->views ());
5003
5004         _summary->set_dirty ();
5005         _group_tabs->set_dirty ();
5006
5007         return false; // do not call again (until needed)
5008 }
5009
5010 void
5011 Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
5012 {
5013         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5014                 theslot (**i);
5015         }
5016 }
5017
5018 RouteTimeAxisView*
5019 Editor::get_route_view_by_id (PBD::ID& id)
5020 {
5021         RouteTimeAxisView* v;
5022
5023         for(TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5024                 if((v = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5025                         if(v->route()->id() == id) {
5026                                 return v;
5027                         }
5028                 }
5029         }
5030
5031         return 0;
5032 }
5033
5034 void
5035 Editor::fit_route_group (RouteGroup *g)
5036 {
5037         TrackSelection ts = axis_views_from_routes (g->route_list ());
5038         fit_tracks (ts);
5039 }
5040
5041 void
5042 Editor::consider_auditioning (boost::shared_ptr<Region> region)
5043 {
5044         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
5045
5046         if (r == 0) {
5047                 session->cancel_audition ();
5048                 return;
5049         }
5050
5051         if (session->is_auditioning()) {
5052                 session->cancel_audition ();
5053                 if (r == last_audition_region) {
5054                         return;
5055                 }
5056         }
5057
5058         session->audition_region (r);
5059         last_audition_region = r;
5060 }
5061
5062
5063 void
5064 Editor::hide_a_region (boost::shared_ptr<Region> r)
5065 {
5066         r->set_hidden (true);
5067 }
5068
5069 void
5070 Editor::remove_a_region (boost::shared_ptr<Region> r)
5071 {
5072         session->remove_region_from_region_list (r);
5073 }
5074
5075 void
5076 Editor::audition_region_from_region_list ()
5077 {
5078         _regions->selection_mapover (mem_fun (*this, &Editor::consider_auditioning));
5079 }
5080
5081 void
5082 Editor::hide_region_from_region_list ()
5083 {
5084         _regions->selection_mapover (mem_fun (*this, &Editor::hide_a_region));
5085 }
5086
5087 void
5088 Editor::start_step_editing ()
5089 {
5090         step_edit_connection = Glib::signal_timeout().connect (mem_fun (*this, &Editor::check_step_edit), 20);
5091 }
5092
5093 void
5094 Editor::stop_step_editing ()
5095 {
5096         step_edit_connection.disconnect ();
5097 }
5098
5099 bool
5100 Editor::check_step_edit ()
5101 {
5102         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5103                 MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (*i);
5104                 if (mtv) {
5105                         mtv->check_step_edit ();
5106                 }
5107         }
5108
5109         return true; // do it again, till we stop
5110 }