gtk2_ardour/editor.cc

   1 /*
   2     Copyright (C) 2000-2009 Paul Davis
   3
   4     This program is free software; you can redistribute it and/or modify
   5     it under the terms of the GNU General Public License as published by
   6     the Free Software Foundation; either version 2 of the License, or
   7     (at your option) any later version.
   8
   9     This program is distributed in the hope that it will be useful,
  10     but WITHOUT ANY WARRANTY; without even the implied warranty of
  11     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12     GNU General Public License for more details.
  13
  14     You should have received a copy of the GNU General Public License
  15     along with this program; if not, write to the Free Software
  16     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  17
  18 */
  19
  20 /* Note: public Editor methods are documented in public_editor.h */
  21
  22 #define __STDC_LIMIT_MACROS 1
  23 #include <stdint.h>
  24 #include <unistd.h>
  25 #include <cstdlib>
  26 #include <cmath>
  27 #include <string>
  28 #include <algorithm>
  29 #include <map>
  30
  31 #include "ardour_ui.h"
  32 /*
  33  * ardour_ui.h include was moved to the top of the list
  34  * due to a conflicting definition of 'Style' between
  35  * Apple's MacTypes.h and BarController.
  36  */
  37
  38 #include <boost/none.hpp>
  39
  40 #include <sigc++/bind.h>
  41
  42 #include "pbd/convert.h"
  43 #include "pbd/error.h"
  44 #include "pbd/enumwriter.h"
  45 #include "pbd/memento_command.h"
  46 #include "pbd/unknown_type.h"
  47
  48 #include <glibmm/miscutils.h>
  49 #include <gtkmm/image.h>
  50 #include <gdkmm/color.h>
  51 #include <gdkmm/bitmap.h>
  52
  53 #include <gtkmm2ext/grouped_buttons.h>
  54 #include <gtkmm2ext/gtk_ui.h>
  55 #include <gtkmm2ext/tearoff.h>
  56 #include <gtkmm2ext/utils.h>
  57 #include <gtkmm2ext/window_title.h>
  58 #include <gtkmm2ext/choice.h>
  59 #include <gtkmm2ext/cell_renderer_pixbuf_toggle.h>
  60
  61 #include "ardour/audio_diskstream.h"
  62 #include "ardour/audio_track.h"
  63 #include "ardour/audioplaylist.h"
  64 #include "ardour/audioregion.h"
  65 #include "ardour/location.h"
  66 #include "ardour/midi_region.h"
  67 #include "ardour/plugin_manager.h"
  68 #include "ardour/profile.h"
  69 #include "ardour/route_group.h"
  70 #include "ardour/session_directory.h"
  71 #include "ardour/session_route.h"
  72 #include "ardour/session_state_utils.h"
  73 #include "ardour/tempo.h"
  74 #include "ardour/utils.h"
  75 #include "ardour/session_playlists.h"
  76
  77 #include "control_protocol/control_protocol.h"
  78
  79 #include "editor.h"
  80 #include "keyboard.h"
  81 #include "marker.h"
  82 #include "playlist_selector.h"
  83 #include "audio_region_view.h"
  84 #include "rgb_macros.h"
  85 #include "selection.h"
  86 #include "audio_streamview.h"
  87 #include "time_axis_view.h"
  88 #include "audio_time_axis.h"
  89 #include "utils.h"
  90 #include "crossfade_view.h"
  91 #include "canvas-noevent-text.h"
  92 #include "editing.h"
  93 #include "public_editor.h"
  94 #include "crossfade_edit.h"
  95 #include "canvas_impl.h"
  96 #include "actions.h"
  97 #include "sfdb_ui.h"
  98 #include "gui_thread.h"
  99 #include "simpleline.h"
 100 #include "rhythm_ferret.h"
 101 #include "actions.h"
 102 #include "tempo_lines.h"
 103 #include "analysis_window.h"
 104 #include "bundle_manager.h"
 105 #include "global_port_matrix.h"
 106 #include "editor_drag.h"
 107 #include "editor_group_tabs.h"
 108 #include "automation_time_axis.h"
 109 #include "editor_routes.h"
 110 #include "midi_time_axis.h"
 111 #include "mixer_strip.h"
 112 #include "editor_route_groups.h"
 113 #include "editor_regions.h"
 114 #include "editor_locations.h"
 115 #include "editor_snapshots.h"
 116
 117 #include "i18n.h"
 118
 119 #ifdef WITH_CMT
 120 #include "imageframe_socket_handler.h"
 121 #endif
 122
 123 using namespace std;
 124 using namespace ARDOUR;
 125 using namespace PBD;
 126 using namespace Gtk;
 127 using namespace Glib;
 128 using namespace Gtkmm2ext;
 129 using namespace Editing;
 130
 131 using PBD::internationalize;
 132 using PBD::atoi;
 133 using Gtkmm2ext::Keyboard;
 134
 135 const double Editor::timebar_height = 15.0;
 136
 137 #include "editor_xpms"
 138
 139 static const gchar *_snap_type_strings[] = {
 140         N_("CD Frames"),
 141         N_("Timecode Frames"),
 142         N_("Timecode Seconds"),
 143         N_("Timecode Minutes"),
 144         N_("Seconds"),
 145         N_("Minutes"),
 146         N_("Beats/32"),
 147         N_("Beats/16"),
 148         N_("Beats/8"),
 149         N_("Beats/4"),
 150         N_("Beats/3"),
 151         N_("Beats"),
 152         N_("Bars"),
 153         N_("Marks"),
 154         N_("Region starts"),
 155         N_("Region ends"),
 156         N_("Region syncs"),
 157         N_("Region bounds"),
 158         0
 159 };
 160
 161 static const gchar *_snap_mode_strings[] = {
 162         N_("No Grid"),
 163         N_("Grid"),
 164         N_("Magnetic"),
 165         0
 166 };
 167
 168 static const gchar *_edit_point_strings[] = {
 169         N_("Playhead"),
 170         N_("Marker"),
 171         N_("Mouse"),
 172         0
 173 };
 174
 175 static const gchar *_zoom_focus_strings[] = {
 176         N_("Left"),
 177         N_("Right"),
 178         N_("Center"),
 179         N_("Playhead"),
 180         N_("Mouse"),
 181         N_("Edit point"),
 182         0
 183 };
 184
 185 #ifdef USE_RUBBERBAND
 186 static const gchar *_rb_opt_strings[] = {
 187         N_("Mushy"),
 188         N_("Smooth"),
 189         N_("Balanced multitimbral mixture"),
 190         N_("Unpitched percussion with stable notes"),
 191         N_("Crisp monophonic instrumental"),
 192         N_("Unpitched solo percussion"),
 193         0
 194 };
 195 #endif
 196
 197 /* Soundfile  drag-n-drop */
 198
 199 Gdk::Cursor* Editor::cross_hair_cursor = 0;
 200 Gdk::Cursor* Editor::selector_cursor = 0;
 201 Gdk::Cursor* Editor::trimmer_cursor = 0;
 202 Gdk::Cursor* Editor::grabber_cursor = 0;
 203 Gdk::Cursor* Editor::grabber_edit_point_cursor = 0;
 204 Gdk::Cursor* Editor::zoom_cursor = 0;
 205 Gdk::Cursor* Editor::time_fx_cursor = 0;
 206 Gdk::Cursor* Editor::fader_cursor = 0;
 207 Gdk::Cursor* Editor::speaker_cursor = 0;
 208 Gdk::Cursor* Editor::midi_pencil_cursor = 0;
 209 Gdk::Cursor* Editor::midi_select_cursor = 0;
 210 Gdk::Cursor* Editor::midi_resize_cursor = 0;
 211 Gdk::Cursor* Editor::midi_erase_cursor = 0;
 212 Gdk::Cursor* Editor::wait_cursor = 0;
 213 Gdk::Cursor* Editor::timebar_cursor = 0;
 214 Gdk::Cursor* Editor::transparent_cursor = 0;
 215
 216 void
 217 show_me_the_size (Requisition* r, const char* what)
 218 {
 219         cerr << "size of " << what << " = " << r->width << " x " << r->height << endl;
 220 }
 221
 222 Editor::Editor ()
 223         : _join_object_range_state (JOIN_OBJECT_RANGE_NONE)
 224
 225           /* time display buttons */
 226         , minsec_label (_("Mins:Secs"))
 227         , bbt_label (_("Bars:Beats"))
 228         , timecode_label (_("Timecode"))
 229         , frame_label (_("Samples"))
 230         , tempo_label (_("Tempo"))
 231         , meter_label (_("Meter"))
 232         , mark_label (_("Location Markers"))
 233         , range_mark_label (_("Range Markers"))
 234         , transport_mark_label (_("Loop/Punch Ranges"))
 235         , cd_mark_label (_("CD Markers"))
 236         , edit_packer (4, 4, true)
 237
 238           /* the values here don't matter: layout widgets
 239              reset them as needed.
 240           */
 241
 242         , vertical_adjustment (0.0, 0.0, 10.0, 400.0)
 243         , horizontal_adjustment (0.0, 0.0, 20.0, 1200.0)
 244
 245           /* tool bar related */
 246
 247         , zoom_range_clock (X_("zoomrange"), false, X_("ZoomRangeClock"), true, false, true)
 248
 249         , toolbar_selection_clock_table (2,3)
 250
 251         , automation_mode_button (_("mode"))
 252         , global_automation_button (_("automation"))
 253
 254         , midi_panic_button (_("Panic"))
 255
 256 #ifdef WITH_CMT
 257         , image_socket_listener(0)
 258 #endif
 259
 260           /* nudge */
 261
 262         , nudge_clock (X_("nudge"), false, X_("NudgeClock"), true, false, true)
 263         , meters_running(false)
 264         , _pending_locate_request (false)
 265
 266 {
 267         constructed = false;
 268
 269         /* we are a singleton */
 270
 271         PublicEditor::_instance = this;
 272
 273         _have_idled = false;
 274
 275         selection = new Selection (this);
 276         cut_buffer = new Selection (this);
 277
 278         clicked_regionview = 0;
 279         clicked_axisview = 0;
 280         clicked_routeview = 0;
 281         clicked_crossfadeview = 0;
 282         clicked_control_point = 0;
 283         last_update_frame = 0;
 284         _drags = new DragManager (this);
 285         current_mixer_strip = 0;
 286         current_bbt_points = 0;
 287         tempo_lines = 0;
 288
 289         snap_type_strings =  I18N (_snap_type_strings);
 290         snap_mode_strings =  I18N (_snap_mode_strings);
 291         zoom_focus_strings = I18N (_zoom_focus_strings);
 292         edit_point_strings = I18N (_edit_point_strings);
 293 #ifdef USE_RUBBERBAND
 294         rb_opt_strings = I18N (_rb_opt_strings);
 295 #endif
 296
 297         snap_threshold = 5.0;
 298         bbt_beat_subdivision = 4;
 299         _canvas_width = 0;
 300         _canvas_height = 0;
 301         last_autoscroll_x = 0;
 302         last_autoscroll_y = 0;
 303         autoscroll_active = false;
 304         autoscroll_timeout_tag = -1;
 305         interthread_progress_window = 0;
 306         logo_item = 0;
 307
 308         analysis_window = 0;
 309
 310         current_interthread_info = 0;
 311         _show_measures = true;
 312         _show_waveforms_recording = true;
 313         show_gain_after_trim = false;
 314         verbose_cursor_on = true;
 315         last_item_entered = 0;
 316         last_item_entered_n = 0;
 317
 318         have_pending_keyboard_selection = false;
 319         _follow_playhead = true;
 320         _xfade_visibility = true;
 321         editor_ruler_menu = 0;
 322         no_ruler_shown_update = false;
 323         marker_menu = 0;
 324         start_end_marker_menu = 0;
 325         range_marker_menu = 0;
 326         marker_menu_item = 0;
 327         tm_marker_menu = 0;
 328         transport_marker_menu = 0;
 329         new_transport_marker_menu = 0;
 330         editor_mixer_strip_width = Wide;
 331         show_editor_mixer_when_tracks_arrive = false;
 332         region_edit_menu_split_multichannel_item = 0;
 333         region_edit_menu_split_item = 0;
 334         temp_location = 0;
 335         leftmost_frame = 0;
 336         current_stepping_trackview = 0;
 337         entered_track = 0;
 338         entered_regionview = 0;
 339         entered_marker = 0;
 340         clear_entered_track = false;
 341         _new_regionviews_show_envelope = false;
 342         current_timefx = 0;
 343         playhead_cursor = 0;
 344         button_release_can_deselect = true;
 345         _dragging_playhead = false;
 346         _dragging_edit_point = false;
 347         select_new_marker = false;
 348         rhythm_ferret = 0;
 349         _bundle_manager = 0;
 350         for (ARDOUR::DataType::iterator i = ARDOUR::DataType::begin(); i != ARDOUR::DataType::end(); ++i) {
 351                 _global_port_matrix[*i] = 0;
 352         }
 353         allow_vertical_scroll = false;
 354         no_save_visual = false;
 355         resize_idle_id = -1;
 356
 357         scrubbing_direction = 0;
 358
 359         sfbrowser = 0;
 360
 361         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 362         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 363         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 364         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 365         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 366
 367         _edit_point = EditAtMouse;
 368         _internal_editing = false;
 369         current_canvas_cursor = 0;
 370
 371         frames_per_unit = 2048; /* too early to use reset_zoom () */
 372
 373         zoom_focus = ZoomFocusLeft;
 374         set_zoom_focus (ZoomFocusLeft);
 375         zoom_range_clock.ValueChanged.connect (sigc::mem_fun(*this, &Editor::zoom_adjustment_changed));
 376
 377         bbt_label.set_name ("EditorTimeButton");
 378         bbt_label.set_size_request (-1, (int)timebar_height);
 379         bbt_label.set_alignment (1.0, 0.5);
 380         bbt_label.set_padding (5,0);
 381         bbt_label.hide ();
 382         bbt_label.set_no_show_all();
 383         minsec_label.set_name ("EditorTimeButton");
 384         minsec_label.set_size_request (-1, (int)timebar_height);
 385         minsec_label.set_alignment (1.0, 0.5);
 386         minsec_label.set_padding (5,0);
 387         minsec_label.hide ();
 388         minsec_label.set_no_show_all();
 389         timecode_label.set_name ("EditorTimeButton");
 390         timecode_label.set_size_request (-1, (int)timebar_height);
 391         timecode_label.set_alignment (1.0, 0.5);
 392         timecode_label.set_padding (5,0);
 393         timecode_label.hide ();
 394         timecode_label.set_no_show_all();
 395         frame_label.set_name ("EditorTimeButton");
 396         frame_label.set_size_request (-1, (int)timebar_height);
 397         frame_label.set_alignment (1.0, 0.5);
 398         frame_label.set_padding (5,0);
 399         frame_label.hide ();
 400         frame_label.set_no_show_all();
 401
 402         tempo_label.set_name ("EditorTimeButton");
 403         tempo_label.set_size_request (-1, (int)timebar_height);
 404         tempo_label.set_alignment (1.0, 0.5);
 405         tempo_label.set_padding (5,0);
 406         tempo_label.hide();
 407         tempo_label.set_no_show_all();
 408         meter_label.set_name ("EditorTimeButton");
 409         meter_label.set_size_request (-1, (int)timebar_height);
 410         meter_label.set_alignment (1.0, 0.5);
 411         meter_label.set_padding (5,0);
 412         meter_label.hide();
 413         meter_label.set_no_show_all();
 414         mark_label.set_name ("EditorTimeButton");
 415         mark_label.set_size_request (-1, (int)timebar_height);
 416         mark_label.set_alignment (1.0, 0.5);
 417         mark_label.set_padding (5,0);
 418         mark_label.hide();
 419         mark_label.set_no_show_all();
 420         cd_mark_label.set_name ("EditorTimeButton");
 421         cd_mark_label.set_size_request (-1, (int)timebar_height);
 422         cd_mark_label.set_alignment (1.0, 0.5);
 423         cd_mark_label.set_padding (5,0);
 424         cd_mark_label.hide();
 425         cd_mark_label.set_no_show_all();
 426         range_mark_label.set_name ("EditorTimeButton");
 427         range_mark_label.set_size_request (-1, (int)timebar_height);
 428         range_mark_label.set_alignment (1.0, 0.5);
 429         range_mark_label.set_padding (5,0);
 430         range_mark_label.hide();
 431         range_mark_label.set_no_show_all();
 432         transport_mark_label.set_name ("EditorTimeButton");
 433         transport_mark_label.set_size_request (-1, (int)timebar_height);
 434         transport_mark_label.set_alignment (1.0, 0.5);
 435         transport_mark_label.set_padding (5,0);
 436         transport_mark_label.hide();
 437         transport_mark_label.set_no_show_all();
 438
 439         initialize_rulers ();
 440         initialize_canvas ();
 441         _summary = new EditorSummary (this);
 442
 443         selection->TimeChanged.connect (sigc::mem_fun(*this, &Editor::time_selection_changed));
 444         selection->TracksChanged.connect (sigc::mem_fun(*this, &Editor::track_selection_changed));
 445         editor_regions_selection_changed_connection = selection->RegionsChanged.connect (sigc::mem_fun(*this, &Editor::region_selection_changed));
 446         selection->PointsChanged.connect (sigc::mem_fun(*this, &Editor::point_selection_changed));
 447         selection->MarkersChanged.connect (sigc::mem_fun(*this, &Editor::marker_selection_changed));
 448
 449         edit_controls_vbox.set_spacing (0);
 450         horizontal_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &Editor::scroll_canvas_horizontally), false);
 451         vertical_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &Editor::tie_vertical_scrolling), true);
 452         track_canvas->signal_map_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_map_handler));
 453
 454         HBox* h = manage (new HBox);
 455         _group_tabs = new EditorGroupTabs (this);
 456         h->pack_start (*_group_tabs, PACK_SHRINK);
 457         h->pack_start (edit_controls_vbox);
 458         controls_layout.add (*h);
 459
 460         ARDOUR_UI::instance()->tooltips().set_tip (*_group_tabs, _("Groups: context-click for possible operations"));
 461
 462         controls_layout.set_name ("EditControlsBase");
 463         controls_layout.add_events (Gdk::SCROLL_MASK);
 464         controls_layout.signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::control_layout_scroll), false);
 465
 466         controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
 467         controls_layout.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::edit_controls_button_release));
 468         controls_layout_size_request_connection = controls_layout.signal_size_request().connect (sigc::mem_fun (*this, &Editor::controls_layout_size_request));
 469
 470         build_cursors ();
 471
 472         ArdourCanvas::Canvas* time_pad = manage(new ArdourCanvas::Canvas());
 473         ArdourCanvas::SimpleLine* pad_line_1 = manage(new ArdourCanvas::SimpleLine(*time_pad->root(),
 474                         0.0, 1.0, 100.0, 1.0));
 475         pad_line_1->property_color_rgba() = 0xFF0000FF;
 476         pad_line_1->show();
 477         time_pad->show();
 478
 479         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
 480         time_canvas_vbox.set_size_request (-1, -1);
 481
 482         ruler_label_event_box.add (ruler_label_vbox);
 483         ruler_label_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 484         ruler_label_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 485
 486         time_button_event_box.add (time_button_vbox);
 487         time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 488         time_button_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 489
 490         /* these enable us to have a dedicated window (for cursor setting, etc.)
 491            for the canvas areas.
 492         */
 493
 494         track_canvas_event_box.add (*track_canvas);
 495
 496         time_canvas_event_box.add (time_canvas_vbox);
 497         time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 498
 499         edit_packer.set_col_spacings (0);
 500         edit_packer.set_row_spacings (0);
 501         edit_packer.set_homogeneous (false);
 502         edit_packer.set_border_width (0);
 503         edit_packer.set_name ("EditorWindow");
 504
 505         edit_packer.attach (zoom_vbox,               0, 1, 0, 2,    SHRINK,        FILL, 0, 0);
 506         /* labels for the rulers */
 507         edit_packer.attach (ruler_label_event_box,   1, 2, 0, 1,    FILL,        SHRINK, 0, 0);
 508         /* labels for the marker "tracks" */
 509         edit_packer.attach (time_button_event_box,   1, 2, 1, 2,    FILL,        SHRINK, 0, 0);
 510         /* the rulers */
 511         edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
 512         /* track controls */
 513         edit_packer.attach (controls_layout,         0, 2, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
 514         /* main canvas */
 515         edit_packer.attach (track_canvas_event_box,  2, 3, 1, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 516
 517         bottom_hbox.set_border_width (2);
 518         bottom_hbox.set_spacing (3);
 519
 520         _route_groups = new EditorRouteGroups (this);
 521         _routes = new EditorRoutes (this);
 522         _regions = new EditorRegions (this);
 523         _snapshots = new EditorSnapshots (this);
 524         _locations = new EditorLocations (this);
 525
 526         Gtk::Label* nlabel;
 527
 528         nlabel = manage (new Label (_("Regions")));
 529         nlabel->set_angle (-90);
 530         the_notebook.append_page (_regions->widget (), *nlabel);
 531         nlabel = manage (new Label (_("Tracks/Busses")));
 532         nlabel->set_angle (-90);
 533         the_notebook.append_page (_routes->widget (), *nlabel);
 534         nlabel = manage (new Label (_("Snapshots")));
 535         nlabel->set_angle (-90);
 536         the_notebook.append_page (_snapshots->widget (), *nlabel);
 537         nlabel = manage (new Label (_("Route Groups")));
 538         nlabel->set_angle (-90);
 539         the_notebook.append_page (_route_groups->widget (), *nlabel);
 540         nlabel = manage (new Label (_("Ranges & Marks")));
 541         nlabel->set_angle (-90);
 542         the_notebook.append_page (_locations->widget (), *nlabel);
 543
 544         the_notebook.set_show_tabs (true);
 545         the_notebook.set_scrollable (true);
 546         the_notebook.popup_disable ();
 547         the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 548         the_notebook.show_all ();
 549
 550         post_maximal_editor_width = 0;
 551         post_maximal_pane_position = 0;
 552
 553         VPaned *editor_summary_pane = manage(new VPaned());
 554         editor_summary_pane->pack1(edit_packer);
 555
 556         Button* summary_arrows_left_left = manage (new Button);
 557         summary_arrows_left_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
 558         summary_arrows_left_left->signal_clicked().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left));
 559         Button* summary_arrows_left_right = manage (new Button);
 560         summary_arrows_left_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
 561         summary_arrows_left_right->signal_clicked().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right));
 562         VBox* summary_arrows_left = manage (new VBox);
 563         summary_arrows_left->pack_start (*summary_arrows_left_left);
 564         summary_arrows_left->pack_start (*summary_arrows_left_right);
 565
 566         Button* summary_arrows_right_left = manage (new Button);
 567         summary_arrows_right_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
 568         summary_arrows_right_left->signal_clicked().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_left));
 569         Button* summary_arrows_right_right = manage (new Button);
 570         summary_arrows_right_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
 571         summary_arrows_right_right->signal_clicked().connect (sigc::mem_fun (*this, &Editor::horizontal_scroll_right));
 572         VBox* summary_arrows_right = manage (new VBox);
 573         summary_arrows_right->pack_start (*summary_arrows_right_left);
 574         summary_arrows_right->pack_start (*summary_arrows_right_right);
 575
 576         Frame* summary_frame = manage (new Frame);
 577         summary_frame->set_shadow_type (Gtk::SHADOW_ETCHED_IN);
 578         summary_frame->add (*_summary);
 579         summary_frame->show ();
 580
 581         _summary_hbox.pack_start (*summary_arrows_left, false, false);
 582         _summary_hbox.pack_start (*summary_frame, true, true);
 583         _summary_hbox.pack_start (*summary_arrows_right, false, false);
 584
 585         editor_summary_pane->pack2 (_summary_hbox);
 586
 587         edit_pane.pack1 (*editor_summary_pane, true, true);
 588         edit_pane.pack2 (the_notebook, false, true);
 589
 590         edit_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 591
 592         top_hbox.pack_start (toolbar_frame, false, true);
 593
 594         HBox *hbox = manage (new HBox);
 595         hbox->pack_start (edit_pane, true, true);
 596
 597         global_vpacker.pack_start (top_hbox, false, false);
 598         global_vpacker.pack_start (*hbox, true, true);
 599
 600         global_hpacker.pack_start (global_vpacker, true, true);
 601
 602         set_name ("EditorWindow");
 603         add_accel_group (ActionManager::ui_manager->get_accel_group());
 604
 605         status_bar_hpacker.show ();
 606
 607         vpacker.pack_end (status_bar_hpacker, false, false);
 608         vpacker.pack_end (global_hpacker, true, true);
 609
 610         /* register actions now so that set_state() can find them and set toggles/checks etc */
 611
 612         register_actions ();
 613
 614         setup_toolbar ();
 615         setup_midi_toolbar ();
 616
 617         _snap_type = SnapToBeat;
 618         set_snap_to (_snap_type);
 619         _snap_mode = SnapOff;
 620         set_snap_mode (_snap_mode);
 621         set_mouse_mode (MouseObject, true);
 622         set_edit_point_preference (EditAtMouse, true);
 623
 624         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
 625         set_state (*node, Stateful::loading_state_version);
 626
 627         _playlist_selector = new PlaylistSelector();
 628         _playlist_selector->signal_delete_event().connect (sigc::bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 629
 630         RegionView::RegionViewGoingAway.connect (*this, ui_bind (&Editor::catch_vanishing_regionview, this, _1), gui_context());
 631
 632         /* nudge stuff */
 633
 634         nudge_forward_button.add (*(manage (new Image (::get_icon("nudge_right")))));
 635         nudge_backward_button.add (*(manage (new Image (::get_icon("nudge_left")))));
 636
 637         ARDOUR_UI::instance()->tooltips().set_tip (nudge_forward_button, _("Nudge Region/Selection Forwards"));
 638         ARDOUR_UI::instance()->tooltips().set_tip (nudge_backward_button, _("Nudge Region/Selection Backwards"));
 639
 640         nudge_forward_button.set_name ("TransportButton");
 641         nudge_backward_button.set_name ("TransportButton");
 642
 643         fade_context_menu.set_name ("ArdourContextMenu");
 644
 645         /* icons, titles, WM stuff */
 646
 647         list<Glib::RefPtr<Gdk::Pixbuf> > window_icons;
 648         Glib::RefPtr<Gdk::Pixbuf> icon;
 649
 650         if ((icon = ::get_icon ("ardour_icon_16px")) != 0) {
 651                 window_icons.push_back (icon);
 652         }
 653         if ((icon = ::get_icon ("ardour_icon_22px")) != 0) {
 654                 window_icons.push_back (icon);
 655         }
 656         if ((icon = ::get_icon ("ardour_icon_32px")) != 0) {
 657                 window_icons.push_back (icon);
 658         }
 659         if ((icon = ::get_icon ("ardour_icon_48px")) != 0) {
 660                 window_icons.push_back (icon);
 661         }
 662         if (!window_icons.empty()) {
 663                 set_icon_list (window_icons);
 664                 set_default_icon_list (window_icons);
 665         }
 666
 667         WindowTitle title(Glib::get_application_name());
 668         title += _("Editor");
 669         set_title (title.get_string());
 670         set_wmclass (X_("ardour_editor"), "Ardour");
 671
 672         add (vpacker);
 673         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 674
 675         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 676         signal_delete_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
 677
 678         /* allow external control surfaces/protocols to do various things */
 679
 680         ControlProtocol::ZoomToSession.connect (*this, boost::bind (&Editor::temporal_zoom_session, this), gui_context());
 681         ControlProtocol::ZoomIn.connect (*this, boost::bind (&Editor::temporal_zoom_step, this, false), gui_context());
 682         ControlProtocol::ZoomOut.connect (*this, boost::bind (&Editor::temporal_zoom_step, this, true), gui_context());
 683         ControlProtocol::ScrollTimeline.connect (*this, ui_bind (&Editor::control_scroll, this, _1), gui_context());
 684         BasicUI::AccessAction.connect (*this, ui_bind (&Editor::access_action, this, _1, _2), gui_context());
 685
 686         /* problematic: has to return a value and thus cannot be x-thread */
 687
 688         Session::AskAboutPlaylistDeletion.connect_same_thread (*this, boost::bind (&Editor::playlist_deletion_dialog, this, _1));
 689
 690         Config->ParameterChanged.connect (*this, ui_bind (&Editor::parameter_changed, this, _1), gui_context());
 691
 692         TimeAxisView::CatchDeletion.connect (*this, ui_bind (&Editor::timeaxisview_deleted, this, _1), gui_context());
 693
 694         _last_normalization_value = 0;
 695
 696         constructed = true;
 697         instant_save ();
 698 }
 699
 700 Editor::~Editor()
 701 {
 702 #ifdef WITH_CMT
 703         if(image_socket_listener) {
 704                 if(image_socket_listener->is_connected())
 705                 {
 706                         image_socket_listener->close_connection() ;
 707                 }
 708
 709                 delete image_socket_listener ;
 710                 image_socket_listener = 0 ;
 711         }
 712 #endif
 713
 714         delete _routes;
 715         delete _route_groups;
 716         delete track_canvas;
 717         delete _drags;
 718 }
 719
 720 void
 721 Editor::add_toplevel_controls (Container& cont)
 722 {
 723         vpacker.pack_start (cont, false, false);
 724         cont.show_all ();
 725 }
 726
 727 void
 728 Editor::catch_vanishing_regionview (RegionView *rv)
 729 {
 730         /* note: the selection will take care of the vanishing
 731            audioregionview by itself.
 732         */
 733
 734         if (_drags->active() && _drags->have_item (rv->get_canvas_group()) && !_drags->ending()) {
 735                 _drags->abort ();
 736         }
 737
 738         if (clicked_regionview == rv) {
 739                 clicked_regionview = 0;
 740         }
 741
 742         if (entered_regionview == rv) {
 743                 set_entered_regionview (0);
 744         }
 745 }
 746
 747 void
 748 Editor::set_entered_regionview (RegionView* rv)
 749 {
 750         if (rv == entered_regionview) {
 751                 return;
 752         }
 753
 754         if (entered_regionview) {
 755                 entered_regionview->exited ();
 756         }
 757
 758         if ((entered_regionview = rv) != 0) {
 759                 entered_regionview->entered ();
 760         }
 761 }
 762
 763 void
 764 Editor::set_entered_track (TimeAxisView* tav)
 765 {
 766         if (entered_track) {
 767                 entered_track->exited ();
 768         }
 769
 770         if ((entered_track = tav) != 0) {
 771                 entered_track->entered ();
 772         }
 773 }
 774
 775 void
 776 Editor::show_window ()
 777 {
 778         if (! is_visible ()) {
 779                 show_all ();
 780
 781                 /* re-hide editor list if necessary */
 782                 editor_list_button_toggled ();
 783
 784                 /* re-hide summary widget if necessary */
 785                 parameter_changed ("show-summary");
 786
 787                 parameter_changed ("show-edit-group-tabs");
 788
 789                 /* now reset all audio_time_axis heights, because widgets might need
 790                    to be re-hidden
 791                 */
 792
 793                 TimeAxisView *tv;
 794
 795                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 796                         tv = (static_cast<TimeAxisView*>(*i));
 797                         tv->reset_height ();
 798                 }
 799         }
 800
 801         present ();
 802 }
 803
 804 void
 805 Editor::instant_save ()
 806 {
 807         if (!constructed || !ARDOUR_UI::instance()->session_loaded) {
 808                 return;
 809         }
 810
 811         if (_session) {
 812                 _session->add_instant_xml(get_state());
 813         } else {
 814                 Config->add_instant_xml(get_state());
 815         }
 816 }
 817
 818 void
 819 Editor::zoom_adjustment_changed ()
 820 {
 821         if (_session == 0) {
 822                 return;
 823         }
 824
 825         double fpu = zoom_range_clock.current_duration() / _canvas_width;
 826
 827         if (fpu < 1.0) {
 828                 fpu = 1.0;
 829                 zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
 830         } else if (fpu > _session->current_end_frame() / _canvas_width) {
 831                 fpu = _session->current_end_frame() / _canvas_width;
 832                 zoom_range_clock.set ((nframes64_t) floor (fpu * _canvas_width));
 833         }
 834
 835         temporal_zoom (fpu);
 836 }
 837
 838 void
 839 Editor::control_scroll (float fraction)
 840 {
 841         ENSURE_GUI_THREAD (*this, &Editor::control_scroll, fraction)
 842
 843         if (!_session) {
 844                 return;
 845         }
 846
 847         double step = fraction * current_page_frames();
 848
 849         /*
 850                 _control_scroll_target is an optional<T>
 851
 852                 it acts like a pointer to an nframes64_t, with
 853                 a operator conversion to boolean to check
 854                 that it has a value could possibly use
 855                 playhead_cursor->current_frame to store the
 856                 value and a boolean in the class to know
 857                 when it's out of date
 858         */
 859
 860         if (!_control_scroll_target) {
 861                 _control_scroll_target = _session->transport_frame();
 862                 _dragging_playhead = true;
 863         }
 864
 865         if ((fraction < 0.0f) && (*_control_scroll_target < (nframes64_t) fabs(step))) {
 866                 *_control_scroll_target = 0;
 867         } else if ((fraction > 0.0f) && (max_frames - *_control_scroll_target < step)) {
 868                 *_control_scroll_target = max_frames - (current_page_frames()*2); // allow room for slop in where the PH is on the screen
 869         } else {
 870                 *_control_scroll_target += (nframes64_t) floor (step);
 871         }
 872
 873         /* move visuals, we'll catch up with it later */
 874
 875         playhead_cursor->set_position (*_control_scroll_target);
 876         UpdateAllTransportClocks (*_control_scroll_target);
 877
 878         if (*_control_scroll_target > (current_page_frames() / 2)) {
 879                 /* try to center PH in window */
 880                 reset_x_origin (*_control_scroll_target - (current_page_frames()/2));
 881         } else {
 882                 reset_x_origin (0);
 883         }
 884
 885         /*
 886                 Now we do a timeout to actually bring the session to the right place
 887                 according to the playhead. This is to avoid reading disk buffers on every
 888                 call to control_scroll, which is driven by ScrollTimeline and therefore
 889                 probably by a control surface wheel which can generate lots of events.
 890         */
 891         /* cancel the existing timeout */
 892
 893         control_scroll_connection.disconnect ();
 894
 895         /* add the next timeout */
 896
 897         control_scroll_connection = Glib::signal_timeout().connect (sigc::bind (sigc::mem_fun (*this, &Editor::deferred_control_scroll), *_control_scroll_target), 250);
 898 }
 899
 900 bool
 901 Editor::deferred_control_scroll (nframes64_t /*target*/)
 902 {
 903         _session->request_locate (*_control_scroll_target, _session->transport_rolling());
 904         // reset for next stream
 905         _control_scroll_target = boost::none;
 906         _dragging_playhead = false;
 907         return false;
 908 }
 909
 910 void
 911 Editor::access_action (std::string action_group, std::string action_item)
 912 {
 913         if (!_session) {
 914                 return;
 915         }
 916
 917         ENSURE_GUI_THREAD (*this, &Editor::access_action, action_group, action_item)
 918
 919         RefPtr<Action> act;
 920         act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
 921
 922         if (act) {
 923                 act->activate();
 924         }
 925
 926
 927 }
 928
 929 void
 930 Editor::on_realize ()
 931 {
 932         Window::on_realize ();
 933         Realized ();
 934 }
 935
 936 void
 937 Editor::start_scrolling ()
 938 {
 939         scroll_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect
 940                 (sigc::mem_fun(*this, &Editor::update_current_screen));
 941
 942 }
 943
 944 void
 945 Editor::stop_scrolling ()
 946 {
 947         scroll_connection.disconnect ();
 948 }
 949
 950 void
 951 Editor::map_position_change (nframes64_t frame)
 952 {
 953         ENSURE_GUI_THREAD (*this, &Editor::map_position_change, frame)
 954
 955         if (_session == 0 || !_follow_playhead) {
 956                 return;
 957         }
 958
 959         center_screen (frame);
 960         playhead_cursor->set_position (frame);
 961 }
 962
 963 void
 964 Editor::center_screen (nframes64_t frame)
 965 {
 966         double page = _canvas_width * frames_per_unit;
 967
 968         /* if we're off the page, then scroll.
 969          */
 970
 971         if (frame < leftmost_frame || frame >= leftmost_frame + page) {
 972                 center_screen_internal (frame, page);
 973         }
 974 }
 975
 976 void
 977 Editor::center_screen_internal (nframes64_t frame, float page)
 978 {
 979         page /= 2;
 980
 981         if (frame > page) {
 982                 frame -= (nframes64_t) page;
 983         } else {
 984                 frame = 0;
 985         }
 986
 987         reset_x_origin (frame);
 988 }
 989
 990 void
 991 Editor::handle_new_duration ()
 992 {
 993         if (!_session) {
 994                 return;
 995         }
 996
 997         ENSURE_GUI_THREAD (*this, &Editor::handle_new_duration)
 998         nframes64_t new_end = _session->current_end_frame() + (nframes64_t) floorf (current_page_frames() * 0.10f);
 999
1000         horizontal_adjustment.set_upper (new_end / frames_per_unit);
1001         horizontal_adjustment.set_page_size (current_page_frames()/frames_per_unit);
1002
1003         if (horizontal_adjustment.get_value() + _canvas_width > horizontal_adjustment.get_upper()) {
1004                 horizontal_adjustment.set_value (horizontal_adjustment.get_upper() - _canvas_width);
1005         }
1006         //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
1007 }
1008
1009 void
1010 Editor::update_title ()
1011 {
1012         ENSURE_GUI_THREAD (*this, &Editor::update_title)
1013
1014         if (_session) {
1015                 bool dirty = _session->dirty();
1016
1017                 string session_name;
1018
1019                 if (_session->snap_name() != _session->name()) {
1020                         session_name = _session->snap_name();
1021                 } else {
1022                         session_name = _session->name();
1023                 }
1024
1025                 if (dirty) {
1026                         session_name = "*" + session_name;
1027                 }
1028
1029                 WindowTitle title(session_name);
1030                 title += Glib::get_application_name();
1031                 set_title (title.get_string());
1032         }
1033 }
1034
1035 void
1036 Editor::set_session (Session *t)
1037 {
1038         SessionHandlePtr::set_session (t);
1039
1040         if (!_session) {
1041                 return;
1042         }
1043
1044         zoom_range_clock.set_session (_session);
1045         _playlist_selector->set_session (_session);
1046         nudge_clock.set_session (_session);
1047         _summary->set_session (_session);
1048         _group_tabs->set_session (_session);
1049         _route_groups->set_session (_session);
1050         _regions->set_session (_session);
1051         _snapshots->set_session (_session);
1052         _routes->set_session (_session);
1053         _locations->set_session (_session);
1054
1055         if (rhythm_ferret) {
1056                 rhythm_ferret->set_session (_session);
1057         }
1058
1059         if (analysis_window) {
1060                 analysis_window->set_session (_session);
1061         }
1062
1063         if (sfbrowser) {
1064                 sfbrowser->set_session (_session);
1065         }
1066
1067         compute_fixed_ruler_scale ();
1068
1069         /* there are never any selected regions at startup */
1070
1071         sensitize_the_right_region_actions (false);
1072
1073         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
1074         set_state (*node, Stateful::loading_state_version);
1075
1076         /* catch up with the playhead */
1077
1078         _session->request_locate (playhead_cursor->current_frame);
1079
1080         update_title ();
1081
1082         /* These signals can all be emitted by a non-GUI thread. Therefore the
1083            handlers for them must not attempt to directly interact with the GUI,
1084            but use Gtkmm2ext::UI::instance()->call_slot();
1085         */
1086
1087         _session->TransportStateChange.connect (_session_connections, boost::bind (&Editor::map_transport_state, this), gui_context());
1088         _session->PositionChanged.connect (_session_connections, ui_bind (&Editor::map_position_change, this, _1), gui_context());
1089         _session->RouteAdded.connect (_session_connections, ui_bind (&Editor::handle_new_route, this, _1), gui_context());
1090         _session->DurationChanged.connect (_session_connections, boost::bind (&Editor::handle_new_duration, this), gui_context());
1091         _session->DirtyChanged.connect (_session_connections, boost::bind (&Editor::update_title, this), gui_context());
1092         _session->TimecodeOffsetChanged.connect (_session_connections, boost::bind (&Editor::update_just_timecode, this), gui_context());
1093         _session->tempo_map().StateChanged.connect (_session_connections, ui_bind (&Editor::tempo_map_changed, this, _1), gui_context());
1094         _session->Located.connect (_session_connections, boost::bind (&Editor::located, this), gui_context());
1095         _session->config.ParameterChanged.connect (_session_connections, ui_bind (&Editor::parameter_changed, this, _1), gui_context());
1096         _session->StateSaved.connect (_session_connections, ui_bind (&Editor::session_state_saved, this, _1), gui_context());
1097         _session->locations()->added.connect (_session_connections, ui_bind (&Editor::add_new_location, this, _1), gui_context());
1098         _session->locations()->removed.connect (_session_connections, ui_bind (&Editor::location_gone, this, _1), gui_context());
1099         _session->locations()->changed.connect (_session_connections, boost::bind (&Editor::refresh_location_display, this), gui_context());
1100         _session->locations()->StateChanged.connect (_session_connections, ui_bind (&Editor::refresh_location_display_s, this, _1), gui_context());
1101         _session->locations()->end_location()->changed.connect (_session_connections, ui_bind (&Editor::end_location_changed, this, _1), gui_context());
1102         _session->history().Changed.connect (_session_connections, boost::bind (&Editor::history_changed, this), gui_context());
1103
1104         if (Profile->get_sae()) {
1105                 BBT_Time bbt;
1106                 bbt.bars = 0;
1107                 bbt.beats = 0;
1108                 bbt.ticks = 120;
1109                 nframes_t pos = _session->tempo_map().bbt_duration_at (0, bbt, 1);
1110                 nudge_clock.set_mode(AudioClock::BBT);
1111                 nudge_clock.set (pos, true, 0, AudioClock::BBT);
1112
1113         } else {
1114                 nudge_clock.set (_session->frame_rate() * 5, true, 0, AudioClock::Timecode); // default of 5 seconds
1115         }
1116
1117         playhead_cursor->canvas_item.show ();
1118
1119         Location* loc = _session->locations()->auto_loop_location();
1120         if (loc == 0) {
1121                 loc = new Location (0, _session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
1122                 if (loc->start() == loc->end()) {
1123                         loc->set_end (loc->start() + 1);
1124                 }
1125                 _session->locations()->add (loc, false);
1126                 _session->set_auto_loop_location (loc);
1127         } else {
1128                 // force name
1129                 loc->set_name (_("Loop"));
1130         }
1131
1132         loc = _session->locations()->auto_punch_location();
1133         if (loc == 0) {
1134                 loc = new Location (0, _session->current_end_frame(), _("Punch"), (Location::Flags) (Location::IsAutoPunch | Location::IsHidden));
1135                 if (loc->start() == loc->end()) {
1136                         loc->set_end (loc->start() + 1);
1137                 }
1138                 _session->locations()->add (loc, false);
1139                 _session->set_auto_punch_location (loc);
1140         } else {
1141                 // force name
1142                 loc->set_name (_("Punch"));
1143         }
1144
1145         boost::function<void (string)> pc (boost::bind (&Editor::parameter_changed, this, _1));
1146         Config->map_parameters (pc);
1147         _session->config.map_parameters (pc);
1148
1149         refresh_location_display ();
1150         handle_new_duration ();
1151
1152         restore_ruler_visibility ();
1153         //tempo_map_changed (Change (0));
1154         _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
1155
1156         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1157                 (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
1158         }
1159
1160         start_scrolling ();
1161
1162         switch (_snap_type) {
1163         case SnapToRegionStart:
1164         case SnapToRegionEnd:
1165         case SnapToRegionSync:
1166         case SnapToRegionBoundary:
1167                 build_region_boundary_cache ();
1168                 break;
1169
1170         default:
1171                 break;
1172         }
1173
1174         /* register for undo history */
1175         _session->register_with_memento_command_factory(_id, this);
1176
1177         start_updating ();
1178 }
1179
1180 void
1181 Editor::build_cursors ()
1182 {
1183         using namespace Gdk;
1184
1185         Gdk::Color mbg ("#000000" ); /* Black */
1186         Gdk::Color mfg ("#0000ff" ); /* Blue. */
1187
1188         {
1189                 RefPtr<Bitmap> source, mask;
1190                 source = Bitmap::create (mag_bits, mag_width, mag_height);
1191                 mask = Bitmap::create (magmask_bits, mag_width, mag_height);
1192                 zoom_cursor = new Gdk::Cursor (source, mask, mfg, mbg, mag_x_hot, mag_y_hot);
1193         }
1194
1195         Gdk::Color fbg ("#ffffff" );
1196         Gdk::Color ffg  ("#000000" );
1197
1198         {
1199                 RefPtr<Bitmap> source, mask;
1200
1201                 source = Bitmap::create (fader_cursor_bits, fader_cursor_width, fader_cursor_height);
1202                 mask = Bitmap::create (fader_cursor_mask_bits, fader_cursor_width, fader_cursor_height);
1203                 fader_cursor = new Gdk::Cursor (source, mask, ffg, fbg, fader_cursor_x_hot, fader_cursor_y_hot);
1204         }
1205
1206         {
1207                 RefPtr<Bitmap> source, mask;
1208                 source = Bitmap::create (speaker_cursor_bits, speaker_cursor_width, speaker_cursor_height);
1209                 mask = Bitmap::create (speaker_cursor_mask_bits, speaker_cursor_width, speaker_cursor_height);
1210                 speaker_cursor = new Gdk::Cursor (source, mask, ffg, fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
1211         }
1212
1213         {
1214                 RefPtr<Bitmap> bits;
1215                 char pix[4] = { 0, 0, 0, 0 };
1216                 bits = Bitmap::create (pix, 2, 2);
1217                 Gdk::Color c;
1218                 transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
1219         }
1220
1221         {
1222                 RefPtr<Bitmap> bits;
1223                 char pix[4] = { 0, 0, 0, 0 };
1224                 bits = Bitmap::create (pix, 2, 2);
1225                 Gdk::Color c;
1226                 transparent_cursor = new Gdk::Cursor (bits, bits, c, c, 0, 0);
1227         }
1228
1229
1230         grabber_cursor = new Gdk::Cursor (HAND2);
1231
1232         {
1233                 Glib::RefPtr<Gdk::Pixbuf> grabber_edit_point_pixbuf (::get_icon ("grabber_edit_point"));
1234                 grabber_edit_point_cursor = new Gdk::Cursor (Gdk::Display::get_default(), grabber_edit_point_pixbuf, 5, 17);
1235         }
1236
1237         cross_hair_cursor = new Gdk::Cursor (CROSSHAIR);
1238         trimmer_cursor =  new Gdk::Cursor (SB_H_DOUBLE_ARROW);
1239         selector_cursor = new Gdk::Cursor (XTERM);
1240         time_fx_cursor = new Gdk::Cursor (SIZING);
1241         wait_cursor = new Gdk::Cursor  (WATCH);
1242         timebar_cursor = new Gdk::Cursor(LEFT_PTR);
1243         midi_pencil_cursor = new Gdk::Cursor (PENCIL);
1244         midi_select_cursor = new Gdk::Cursor (CENTER_PTR);
1245         midi_resize_cursor = new Gdk::Cursor (SIZING);
1246         midi_erase_cursor = new Gdk::Cursor (DRAPED_BOX);
1247 }
1248
1249 /** Pop up a context menu for when the user clicks on a fade in or fade out */
1250 void
1251 Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
1252 {
1253         using namespace Menu_Helpers;
1254         AudioRegionView* arv = static_cast<AudioRegionView*> (item->get_data ("regionview"));
1255
1256         if (arv == 0) {
1257                 fatal << _("programming error: fade in canvas item has no regionview data pointer!") << endmsg;
1258                 /*NOTREACHED*/
1259         }
1260
1261         MenuList& items (fade_context_menu.items());
1262
1263         items.clear ();
1264
1265         switch (item_type) {
1266         case FadeInItem:
1267         case FadeInHandleItem:
1268                 if (arv->audio_region()->fade_in_active()) {
1269                         items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), false)));
1270                 } else {
1271                         items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), true)));
1272                 }
1273
1274                 items.push_back (SeparatorElem());
1275
1276                 if (Profile->get_sae()) {
1277                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1278                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1279                 } else {
1280                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1281                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1282                         items.push_back (MenuElem (_("Slow"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogB)));
1283                         items.push_back (MenuElem (_("Fast"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogA)));
1284                         items.push_back (MenuElem (_("Fastest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Slow)));
1285                 }
1286
1287                 break;
1288
1289         case FadeOutItem:
1290         case FadeOutHandleItem:
1291                 if (arv->audio_region()->fade_out_active()) {
1292                         items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), false)));
1293                 } else {
1294                         items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), true)));
1295                 }
1296
1297                 items.push_back (SeparatorElem());
1298
1299                 if (Profile->get_sae()) {
1300                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1301                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1302                 } else {
1303                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1304                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1305                         items.push_back (MenuElem (_("Slow"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogA)));
1306                         items.push_back (MenuElem (_("Fast"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogB)));
1307                         items.push_back (MenuElem (_("Fastest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Fast)));
1308                 }
1309
1310                 break;
1311
1312         default:
1313                 fatal << _("programming error: ")
1314                       << X_("non-fade canvas item passed to popup_fade_context_menu()")
1315                       << endmsg;
1316                 /*NOTREACHED*/
1317         }
1318
1319         fade_context_menu.popup (button, time);
1320 }
1321
1322 void
1323 Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, nframes64_t frame)
1324 {
1325         using namespace Menu_Helpers;
1326         Menu* (Editor::*build_menu_function)(nframes64_t);
1327         Menu *menu;
1328
1329         switch (item_type) {
1330         case RegionItem:
1331         case RegionViewName:
1332         case RegionViewNameHighlight:
1333                 if (with_selection) {
1334                         build_menu_function = &Editor::build_track_selection_context_menu;
1335                 } else {
1336                         build_menu_function = &Editor::build_track_region_context_menu;
1337                 }
1338                 break;
1339
1340         case SelectionItem:
1341                 if (with_selection) {
1342                         build_menu_function = &Editor::build_track_selection_context_menu;
1343                 } else {
1344                         build_menu_function = &Editor::build_track_context_menu;
1345                 }
1346                 break;
1347
1348         case CrossfadeViewItem:
1349                 build_menu_function = &Editor::build_track_crossfade_context_menu;
1350                 break;
1351
1352         case StreamItem:
1353                 if (clicked_routeview->get_diskstream()) {
1354                         build_menu_function = &Editor::build_track_context_menu;
1355                 } else {
1356                         build_menu_function = &Editor::build_track_bus_context_menu;
1357                 }
1358                 break;
1359
1360         default:
1361                 /* probably shouldn't happen but if it does, we don't care */
1362                 return;
1363         }
1364
1365         menu = (this->*build_menu_function)(frame);
1366         menu->set_name ("ArdourContextMenu");
1367
1368         /* now handle specific situations */
1369
1370         switch (item_type) {
1371         case RegionItem:
1372         case RegionViewName:
1373         case RegionViewNameHighlight:
1374                 if (!with_selection) {
1375                         if (region_edit_menu_split_item) {
1376                                 if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
1377                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, true);
1378                                 } else {
1379                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
1380                                 }
1381                         }
1382                         /*
1383                         if (region_edit_menu_split_multichannel_item) {
1384                                 if (clicked_regionview && clicked_regionview->region().n_channels() > 1) {
1385                                         // GTK2FIX find the action, change its sensitivity
1386                                         // region_edit_menu_split_multichannel_item->set_sensitive (true);
1387                                 } else {
1388                                         // GTK2FIX see above
1389                                         // region_edit_menu_split_multichannel_item->set_sensitive (false);
1390                                 }
1391                         }*/
1392                 }
1393                 break;
1394
1395         case SelectionItem:
1396                 break;
1397
1398         case CrossfadeViewItem:
1399                 break;
1400
1401         case StreamItem:
1402                 break;
1403
1404         default:
1405                 /* probably shouldn't happen but if it does, we don't care */
1406                 return;
1407         }
1408
1409         if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
1410
1411                 /* Bounce to disk */
1412
1413                 using namespace Menu_Helpers;
1414                 MenuList& edit_items  = menu->items();
1415
1416                 edit_items.push_back (SeparatorElem());
1417
1418                 switch (clicked_routeview->audio_track()->freeze_state()) {
1419                 case AudioTrack::NoFreeze:
1420                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1421                         break;
1422
1423                 case AudioTrack::Frozen:
1424                         edit_items.push_back (MenuElem (_("Unfreeze"), sigc::mem_fun(*this, &Editor::unfreeze_route)));
1425                         break;
1426
1427                 case AudioTrack::UnFrozen:
1428                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1429                         break;
1430                 }
1431
1432         }
1433
1434         if (item_type == StreamItem && clicked_routeview) {
1435                 clicked_routeview->build_underlay_menu(menu);
1436         }
1437
1438         menu->popup (button, time);
1439 }
1440
1441 Menu*
1442 Editor::build_track_context_menu (nframes64_t)
1443 {
1444         using namespace Menu_Helpers;
1445
1446         MenuList& edit_items = track_context_menu.items();
1447         edit_items.clear();
1448
1449         add_dstream_context_items (edit_items);
1450         return &track_context_menu;
1451 }
1452
1453 Menu*
1454 Editor::build_track_bus_context_menu (nframes64_t)
1455 {
1456         using namespace Menu_Helpers;
1457
1458         MenuList& edit_items = track_context_menu.items();
1459         edit_items.clear();
1460
1461         add_bus_context_items (edit_items);
1462         return &track_context_menu;
1463 }
1464
1465 Menu*
1466 Editor::build_track_region_context_menu (nframes64_t frame)
1467 {
1468         using namespace Menu_Helpers;
1469         MenuList& edit_items  = track_region_context_menu.items();
1470         edit_items.clear();
1471
1472         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
1473
1474         if (rtv) {
1475                 boost::shared_ptr<Diskstream> ds;
1476                 boost::shared_ptr<Playlist> pl;
1477
1478                 if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
1479                         Playlist::RegionList* regions = pl->regions_at ((nframes64_t) floor ( (double)frame * ds->speed()));
1480
1481                         if (selection->regions.size() > 1) {
1482                                 // there's already a multiple selection: just add a
1483                                 // single region context menu that will act on all
1484                                 // selected regions
1485                                 boost::shared_ptr<Region> dummy_region; // = NULL
1486                                 add_region_context_items (rtv->view(), dummy_region, edit_items);
1487                         } else {
1488                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
1489                                         add_region_context_items (rtv->view(), (*i), edit_items);
1490                                 }
1491                         }
1492
1493                         delete regions;
1494                 }
1495         }
1496
1497         add_dstream_context_items (edit_items);
1498
1499         return &track_region_context_menu;
1500 }
1501
1502 Menu*
1503 Editor::build_track_crossfade_context_menu (nframes64_t frame)
1504 {
1505         using namespace Menu_Helpers;
1506         MenuList& edit_items  = track_crossfade_context_menu.items();
1507         edit_items.clear ();
1508
1509         AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_axisview);
1510
1511         if (atv) {
1512                 boost::shared_ptr<Diskstream> ds;
1513                 boost::shared_ptr<Playlist> pl;
1514                 boost::shared_ptr<AudioPlaylist> apl;
1515
1516                 if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()) != 0) && ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) != 0)) {
1517
1518                         Playlist::RegionList* regions = pl->regions_at (frame);
1519                         AudioPlaylist::Crossfades xfades;
1520
1521                         apl->crossfades_at (frame, xfades);
1522
1523                         bool many = xfades.size() > 1;
1524
1525                         for (AudioPlaylist::Crossfades::iterator i = xfades.begin(); i != xfades.end(); ++i) {
1526                                 add_crossfade_context_items (atv->audio_view(), (*i), edit_items, many);
1527                         }
1528
1529                         if (selection->regions.size() > 1) {
1530                                 // there's already a multiple selection: just add a
1531                                 // single region context menu that will act on all
1532                                 // selected regions
1533                                 boost::shared_ptr<Region> dummy_region; // = NULL
1534                                 add_region_context_items (atv->audio_view(), dummy_region, edit_items);
1535                         } else {
1536                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
1537                                         add_region_context_items (atv->audio_view(), (*i), edit_items);
1538                                 }
1539                         }
1540                         delete regions;
1541                 }
1542         }
1543
1544         add_dstream_context_items (edit_items);
1545
1546         return &track_crossfade_context_menu;
1547 }
1548
1549 void
1550 Editor::analyze_region_selection()
1551 {
1552         if (analysis_window == 0) {
1553                 analysis_window = new AnalysisWindow();
1554
1555                 if (_session != 0)
1556                         analysis_window->set_session(_session);
1557
1558                 analysis_window->show_all();
1559         }
1560
1561         analysis_window->set_regionmode();
1562         analysis_window->analyze();
1563
1564         analysis_window->present();
1565 }
1566
1567 void
1568 Editor::analyze_range_selection()
1569 {
1570         if (analysis_window == 0) {
1571                 analysis_window = new AnalysisWindow();
1572
1573                 if (_session != 0)
1574                         analysis_window->set_session(_session);
1575
1576                 analysis_window->show_all();
1577         }
1578
1579         analysis_window->set_rangemode();
1580         analysis_window->analyze();
1581
1582         analysis_window->present();
1583 }
1584
1585 Menu*
1586 Editor::build_track_selection_context_menu (nframes64_t)
1587 {
1588         using namespace Menu_Helpers;
1589         MenuList& edit_items  = track_selection_context_menu.items();
1590         edit_items.clear ();
1591
1592         add_selection_context_items (edit_items);
1593         // edit_items.push_back (SeparatorElem());
1594         // add_dstream_context_items (edit_items);
1595
1596         return &track_selection_context_menu;
1597 }
1598
1599 /** Add context menu items relevant to crossfades.
1600  * @param edit_items List to add the items to.
1601  */
1602 void
1603 Editor::add_crossfade_context_items (AudioStreamView* /*view*/, boost::shared_ptr<Crossfade> xfade, Menu_Helpers::MenuList& edit_items, bool many)
1604 {
1605         using namespace Menu_Helpers;
1606         Menu     *xfade_menu = manage (new Menu);
1607         MenuList& items       = xfade_menu->items();
1608         xfade_menu->set_name ("ArdourContextMenu");
1609         string str;
1610
1611         if (xfade->active()) {
1612                 str = _("Mute");
1613         } else {
1614                 str = _("Unmute");
1615         }
1616
1617         items.push_back (MenuElem (str, sigc::bind (sigc::mem_fun(*this, &Editor::toggle_xfade_active), boost::weak_ptr<Crossfade> (xfade))));
1618         items.push_back (MenuElem (_("Edit"), sigc::bind (sigc::mem_fun(*this, &Editor::edit_xfade), boost::weak_ptr<Crossfade> (xfade))));
1619
1620         if (xfade->can_follow_overlap()) {
1621
1622                 if (xfade->following_overlap()) {
1623                         str = _("Convert to short");
1624                 } else {
1625                         str = _("Convert to full");
1626                 }
1627
1628                 items.push_back (MenuElem (str, sigc::bind (sigc::mem_fun(*this, &Editor::toggle_xfade_length), xfade)));
1629         }
1630
1631         if (many) {
1632                 str = xfade->out()->name();
1633                 str += "->";
1634                 str += xfade->in()->name();
1635         } else {
1636                 str = _("Crossfade");
1637         }
1638
1639         edit_items.push_back (MenuElem (str, *xfade_menu));
1640         edit_items.push_back (SeparatorElem());
1641 }
1642
1643 void
1644 Editor::xfade_edit_left_region ()
1645 {
1646         if (clicked_crossfadeview) {
1647                 clicked_crossfadeview->left_view.show_region_editor ();
1648         }
1649 }
1650
1651 void
1652 Editor::xfade_edit_right_region ()
1653 {
1654         if (clicked_crossfadeview) {
1655                 clicked_crossfadeview->right_view.show_region_editor ();
1656         }
1657 }
1658
1659 void
1660 Editor::add_region_context_items (StreamView* sv, boost::shared_ptr<Region> region, Menu_Helpers::MenuList& edit_items)
1661 {
1662         using namespace Menu_Helpers;
1663         Gtk::MenuItem* foo_item;
1664         Menu     *region_menu = manage (new Menu);
1665         MenuList& items       = region_menu->items();
1666         region_menu->set_name ("ArdourContextMenu");
1667
1668         boost::shared_ptr<AudioRegion> ar;
1669         boost::shared_ptr<MidiRegion>  mr;
1670
1671         if (region) {
1672                 ar = boost::dynamic_pointer_cast<AudioRegion> (region);
1673                 mr = boost::dynamic_pointer_cast<MidiRegion> (region);
1674
1675                 /* when this particular menu pops up, make the relevant region
1676                    become selected.
1677                 */
1678
1679                 region_menu->signal_map_event().connect (
1680                         sigc::bind (sigc::mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, boost::weak_ptr<Region>(region)));
1681
1682                 items.push_back (MenuElem (_("Rename..."), sigc::mem_fun(*this, &Editor::rename_region)));
1683                 if (mr && internal_editing()) {
1684                         items.push_back (MenuElem (_("List editor..."), sigc::mem_fun(*this, &Editor::show_midi_list_editor)));
1685                 } else {
1686                         items.push_back (MenuElem (_("Region Properties..."), sigc::mem_fun(*this, &Editor::edit_region)));
1687                 }
1688         }
1689
1690         items.push_back (MenuElem (_("Raise to top layer"), sigc::mem_fun(*this, &Editor::raise_region_to_top)));
1691         items.push_back (MenuElem (_("Lower to bottom layer"), sigc::mem_fun  (*this, &Editor::lower_region_to_bottom)));
1692         items.push_back (SeparatorElem());
1693         items.push_back (MenuElem (_("Define Sync Point"), sigc::mem_fun(*this, &Editor::set_region_sync_from_edit_point)));
1694         if (_edit_point == EditAtMouse) {
1695                 items.back ().set_sensitive (false);
1696         }
1697         items.push_back (MenuElem (_("Remove Sync Point"), sigc::mem_fun(*this, &Editor::remove_region_sync)));
1698         items.push_back (SeparatorElem());
1699
1700         items.push_back (MenuElem (_("Audition"), sigc::mem_fun(*this, &Editor::play_selected_region)));
1701         items.push_back (MenuElem (_("Export"), sigc::mem_fun(*this, &Editor::export_region)));
1702         items.push_back (MenuElem (_("Bounce"), sigc::mem_fun(*this, &Editor::bounce_region_selection)));
1703
1704         if (ar) {
1705                 items.push_back (MenuElem (_("Spectral Analysis"), sigc::mem_fun(*this, &Editor::analyze_region_selection)));
1706         }
1707
1708         items.push_back (SeparatorElem());
1709
1710         sigc::connection fooc;
1711         boost::shared_ptr<Region> region_to_check;
1712
1713         if (region) {
1714                 region_to_check = region;
1715         } else {
1716                 region_to_check = selection->regions.front()->region();
1717         }
1718
1719         items.push_back (CheckMenuElem (_("Lock")));
1720         CheckMenuItem* region_lock_item = static_cast<CheckMenuItem*>(&items.back());
1721         if (region_to_check->locked()) {
1722                 region_lock_item->set_active();
1723         }
1724         region_lock_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_lock));
1725
1726         items.push_back (CheckMenuElem (_("Glue to Bars & Beats")));
1727         CheckMenuItem* bbt_glue_item = static_cast<CheckMenuItem*>(&items.back());
1728
1729         switch (region_to_check->positional_lock_style()) {
1730         case Region::MusicTime:
1731                 bbt_glue_item->set_active (true);
1732                 break;
1733         default:
1734                 bbt_glue_item->set_active (false);
1735                 break;
1736         }
1737
1738         bbt_glue_item->signal_activate().connect (sigc::bind (sigc::mem_fun (*this, &Editor::set_region_lock_style), Region::MusicTime));
1739
1740         items.push_back (CheckMenuElem (_("Mute")));
1741         CheckMenuItem* region_mute_item = static_cast<CheckMenuItem*>(&items.back());
1742         fooc = region_mute_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_mute));
1743         if (region_to_check->muted()) {
1744                 fooc.block (true);
1745                 region_mute_item->set_active();
1746                 fooc.block (false);
1747         }
1748
1749         if (!Profile->get_sae()) {
1750                 items.push_back (CheckMenuElem (_("Opaque")));
1751                 CheckMenuItem* region_opaque_item = static_cast<CheckMenuItem*>(&items.back());
1752                 fooc = region_opaque_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_region_opaque));
1753                 if (region_to_check->opaque()) {
1754                         fooc.block (true);
1755                         region_opaque_item->set_active();
1756                         fooc.block (false);
1757                 }
1758         }
1759
1760         items.push_back (CheckMenuElem (_("Original Position"), sigc::mem_fun(*this, &Editor::naturalize)));
1761         if (region_to_check->at_natural_position()) {
1762                 items.back().set_sensitive (false);
1763         }
1764
1765         items.push_back (SeparatorElem());
1766
1767         if (ar) {
1768
1769                 RegionView* rv = sv->find_view (ar);
1770                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(rv);
1771
1772                 if (!Profile->get_sae()) {
1773                         items.push_back (MenuElem (_("Reset Envelope"), sigc::mem_fun(*this, &Editor::reset_region_gain_envelopes)));
1774
1775                         items.push_back (CheckMenuElem (_("Envelope Visible")));
1776                         CheckMenuItem* region_envelope_visible_item = static_cast<CheckMenuItem*> (&items.back());
1777                         fooc = region_envelope_visible_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_gain_envelope_visibility));
1778                         if (arv->envelope_visible()) {
1779                                 fooc.block (true);
1780                                 region_envelope_visible_item->set_active (true);
1781                                 fooc.block (false);
1782                         }
1783
1784                         items.push_back (CheckMenuElem (_("Envelope Active")));
1785                         CheckMenuItem* region_envelope_active_item = static_cast<CheckMenuItem*> (&items.back());
1786                         fooc = region_envelope_active_item->signal_activate().connect (sigc::mem_fun(*this, &Editor::toggle_gain_envelope_active));
1787
1788                         if (ar->envelope_active()) {
1789                                 fooc.block (true);
1790                                 region_envelope_active_item->set_active (true);
1791                                 fooc.block (false);
1792                         }
1793
1794                         items.push_back (SeparatorElem());
1795                 }
1796
1797                 items.push_back (MenuElem (_("Normalize"), sigc::mem_fun(*this, &Editor::normalize_region)));
1798                 if (ar->scale_amplitude() != 1) {
1799                         items.push_back (MenuElem (_("Reset Gain"), sigc::mem_fun(*this, &Editor::reset_region_scale_amplitude)));
1800                 }
1801
1802         } else if (mr) {
1803                 items.push_back (MenuElem (_("Quantize"), sigc::mem_fun(*this, &Editor::quantize_region)));
1804                 items.push_back (SeparatorElem());
1805         }
1806
1807         items.push_back (MenuElem (_("Strip Silence..."), sigc::mem_fun (*this, &Editor::strip_region_silence)));
1808         items.push_back (MenuElem (_("Reverse"), sigc::mem_fun(*this, &Editor::reverse_region)));
1809         items.push_back (SeparatorElem());
1810
1811         /* range related stuff */
1812
1813         items.push_back (MenuElem (_("Add Single Range"), sigc::mem_fun (*this, &Editor::add_location_from_audio_region)));
1814         items.push_back (MenuElem (_("Add Range Markers"), sigc::mem_fun (*this, &Editor::add_locations_from_audio_region)));
1815         if (selection->regions.size() < 2) {
1816                 items.back().set_sensitive (false);
1817         }
1818
1819         items.push_back (MenuElem (_("Set Range Selection"), sigc::mem_fun (*this, &Editor::set_selection_from_region)));
1820         items.push_back (SeparatorElem());
1821
1822         /* Nudge region */
1823
1824         Menu *nudge_menu = manage (new Menu());
1825         MenuList& nudge_items = nudge_menu->items();
1826         nudge_menu->set_name ("ArdourContextMenu");
1827
1828         nudge_items.push_back (MenuElem (_("Nudge fwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_forward), false, false))));
1829         nudge_items.push_back (MenuElem (_("Nudge bwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_backward), false, false))));
1830         nudge_items.push_back (MenuElem (_("Nudge fwd by capture offset"), (sigc::mem_fun(*this, &Editor::nudge_forward_capture_offset))));
1831         nudge_items.push_back (MenuElem (_("Nudge bwd by capture offset"), (sigc::mem_fun(*this, &Editor::nudge_backward_capture_offset))));
1832
1833         items.push_back (MenuElem (_("Nudge"), *nudge_menu));
1834         items.push_back (SeparatorElem());
1835
1836         Menu *trim_menu = manage (new Menu);
1837         MenuList& trim_items = trim_menu->items();
1838         trim_menu->set_name ("ArdourContextMenu");
1839
1840         trim_items.push_back (MenuElem (_("Start to edit point"), sigc::mem_fun(*this, &Editor::trim_region_from_edit_point)));
1841         foo_item = &trim_items.back();
1842         if (_edit_point == EditAtMouse) {
1843                 foo_item->set_sensitive (false);
1844         }
1845         trim_items.push_back (MenuElem (_("Edit point to end"), sigc::mem_fun(*this, &Editor::trim_region_to_edit_point)));
1846         foo_item = &trim_items.back();
1847         if (_edit_point == EditAtMouse) {
1848                 foo_item->set_sensitive (false);
1849         }
1850         trim_items.push_back (MenuElem (_("Trim To Loop"), sigc::mem_fun(*this, &Editor::trim_region_to_loop)));
1851         trim_items.push_back (MenuElem (_("Trim To Punch"), sigc::mem_fun(*this, &Editor::trim_region_to_punch)));
1852
1853         items.push_back (MenuElem (_("Trim"), *trim_menu));
1854         items.push_back (SeparatorElem());
1855
1856         items.push_back (MenuElem (_("Split"), (sigc::mem_fun(*this, &Editor::split))));
1857         region_edit_menu_split_item = &items.back();
1858
1859         if (_edit_point == EditAtMouse) {
1860                 region_edit_menu_split_item->set_sensitive (false);
1861         }
1862
1863         items.push_back (MenuElem (_("Make Mono Regions"), (sigc::mem_fun(*this, &Editor::split_multichannel_region))));
1864         region_edit_menu_split_multichannel_item = &items.back();
1865
1866         items.push_back (MenuElem (_("Duplicate"), (sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), false))));
1867         items.push_back (MenuElem (_("Multi-Duplicate"), (sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), true))));
1868         items.push_back (MenuElem (_("Fill Track"), (sigc::mem_fun(*this, &Editor::region_fill_track))));
1869         items.push_back (SeparatorElem());
1870         items.push_back (MenuElem (_("Remove"), sigc::mem_fun(*this, &Editor::remove_selected_regions)));
1871
1872         /* OK, stick the region submenu at the top of the list, and then add
1873            the standard items.
1874         */
1875
1876         /* we have to hack up the region name because "_" has a special
1877            meaning for menu titles.
1878         */
1879
1880         string::size_type pos = 0;
1881         string menu_item_name = (region) ? region->name() : _("Selected regions");
1882
1883         while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
1884                 menu_item_name.replace (pos, 1, "__");
1885                 pos += 2;
1886         }
1887
1888         edit_items.push_back (MenuElem (menu_item_name, *region_menu));
1889         edit_items.push_back (SeparatorElem());
1890 }
1891
1892 /** Add context menu items relevant to selection ranges.
1893  * @param edit_items List to add the items to.
1894  */
1895 void
1896 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
1897 {
1898         using namespace Menu_Helpers;
1899
1900         edit_items.push_back (MenuElem (_("Play Range"), sigc::mem_fun(*this, &Editor::play_selection)));
1901         edit_items.push_back (MenuElem (_("Loop Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), true)));
1902
1903         edit_items.push_back (SeparatorElem());
1904         edit_items.push_back (MenuElem (_("Spectral Analysis"), sigc::mem_fun(*this, &Editor::analyze_range_selection)));
1905
1906         if (!selection->regions.empty()) {
1907                 edit_items.push_back (SeparatorElem());
1908                 edit_items.push_back (MenuElem (_("Extend Range to End of Region"), sigc::bind (sigc::mem_fun(*this, &Editor::extend_selection_to_end_of_region), false)));
1909                 edit_items.push_back (MenuElem (_("Extend Range to Start of Region"), sigc::bind (sigc::mem_fun(*this, &Editor::extend_selection_to_start_of_region), false)));
1910         }
1911
1912         edit_items.push_back (SeparatorElem());
1913         edit_items.push_back (MenuElem (_("Silence Range"), sigc::mem_fun(*this, &Editor::separate_region_from_selection)));
1914         edit_items.push_back (MenuElem (_("Convert to Region in Region List"), sigc::mem_fun(*this, &Editor::new_region_from_selection)));
1915
1916         edit_items.push_back (SeparatorElem());
1917         edit_items.push_back (MenuElem (_("Select All in Range"), sigc::mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
1918
1919         edit_items.push_back (SeparatorElem());
1920         edit_items.push_back (MenuElem (_("Set Loop from Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), false)));
1921         edit_items.push_back (MenuElem (_("Set Punch from Range"), sigc::mem_fun(*this, &Editor::set_punch_from_selection)));
1922
1923         edit_items.push_back (SeparatorElem());
1924         edit_items.push_back (MenuElem (_("Add Range Markers"), sigc::mem_fun (*this, &Editor::add_location_from_selection)));
1925
1926         edit_items.push_back (SeparatorElem());
1927         edit_items.push_back (MenuElem (_("Crop Region to Range"), sigc::mem_fun(*this, &Editor::crop_region_to_selection)));
1928         edit_items.push_back (MenuElem (_("Fill Range with Region"), sigc::mem_fun(*this, &Editor::region_fill_selection)));
1929         edit_items.push_back (MenuElem (_("Duplicate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_dialog), false)));
1930
1931         edit_items.push_back (SeparatorElem());
1932         edit_items.push_back (MenuElem (_("Consolidate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, false)));
1933         edit_items.push_back (MenuElem (_("Consolidate Range With Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, true)));
1934         edit_items.push_back (MenuElem (_("Bounce Range to Region List"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, false)));
1935         edit_items.push_back (MenuElem (_("Bounce Range to Region List With Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, true)));
1936         edit_items.push_back (MenuElem (_("Export Range"), sigc::mem_fun(*this, &Editor::export_range)));
1937 }
1938
1939
1940 void
1941 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
1942 {
1943         using namespace Menu_Helpers;
1944
1945         /* Playback */
1946
1947         Menu *play_menu = manage (new Menu);
1948         MenuList& play_items = play_menu->items();
1949         play_menu->set_name ("ArdourContextMenu");
1950
1951         play_items.push_back (MenuElem (_("Play from edit point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
1952         play_items.push_back (MenuElem (_("Play from start"), sigc::mem_fun(*this, &Editor::play_from_start)));
1953         play_items.push_back (MenuElem (_("Play region"), sigc::mem_fun(*this, &Editor::play_selected_region)));
1954         play_items.push_back (SeparatorElem());
1955         play_items.push_back (MenuElem (_("Loop Region"), sigc::mem_fun(*this, &Editor::loop_selected_region)));
1956
1957         edit_items.push_back (MenuElem (_("Play"), *play_menu));
1958
1959         /* Selection */
1960
1961         Menu *select_menu = manage (new Menu);
1962         MenuList& select_items = select_menu->items();
1963         select_menu->set_name ("ArdourContextMenu");
1964
1965         select_items.push_back (MenuElem (_("Select All in track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
1966         select_items.push_back (MenuElem (_("Select All"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all), Selection::Set)));
1967         select_items.push_back (MenuElem (_("Invert selection in track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
1968         select_items.push_back (MenuElem (_("Invert selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
1969         select_items.push_back (SeparatorElem());
1970         select_items.push_back (MenuElem (_("Set range to loop range"), sigc::mem_fun(*this, &Editor::set_selection_from_loop)));
1971         select_items.push_back (MenuElem (_("Set range to punch range"), sigc::mem_fun(*this, &Editor::set_selection_from_punch)));
1972         select_items.push_back (SeparatorElem());
1973         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
1974         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
1975         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
1976         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
1977         select_items.push_back (MenuElem (_("Select All Between Playhead & Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), false)));
1978         select_items.push_back (MenuElem (_("Select All Within Playhead & Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), true)));
1979         select_items.push_back (MenuElem (_("Select Range Between Playhead & Edit Point"), sigc::mem_fun(*this, &Editor::select_range_between)));
1980
1981         edit_items.push_back (MenuElem (_("Select"), *select_menu));
1982
1983         /* Cut-n-Paste */
1984
1985         Menu *cutnpaste_menu = manage (new Menu);
1986         MenuList& cutnpaste_items = cutnpaste_menu->items();
1987         cutnpaste_menu->set_name ("ArdourContextMenu");
1988
1989         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
1990         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
1991         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f)));
1992
1993         cutnpaste_items.push_back (SeparatorElem());
1994
1995         cutnpaste_items.push_back (MenuElem (_("Align"), sigc::bind (sigc::mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
1996         cutnpaste_items.push_back (MenuElem (_("Align Relative"), sigc::bind (sigc::mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
1997
1998         cutnpaste_items.push_back (SeparatorElem());
1999
2000         edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
2001
2002         /* Adding new material */
2003
2004         edit_items.push_back (SeparatorElem());
2005         edit_items.push_back (MenuElem (_("Insert Selected Region"), sigc::bind (sigc::mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
2006         edit_items.push_back (MenuElem (_("Insert Existing Media"), sigc::bind (sigc::mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
2007
2008         /* Nudge track */
2009
2010         Menu *nudge_menu = manage (new Menu());
2011         MenuList& nudge_items = nudge_menu->items();
2012         nudge_menu->set_name ("ArdourContextMenu");
2013
2014         edit_items.push_back (SeparatorElem());
2015         nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2016         nudge_items.push_back (MenuElem (_("Nudge track after edit point fwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2017         nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2018         nudge_items.push_back (MenuElem (_("Nudge track after edit point bwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2019
2020         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2021 }
2022
2023 void
2024 Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
2025 {
2026         using namespace Menu_Helpers;
2027
2028         /* Playback */
2029
2030         Menu *play_menu = manage (new Menu);
2031         MenuList& play_items = play_menu->items();
2032         play_menu->set_name ("ArdourContextMenu");
2033
2034         play_items.push_back (MenuElem (_("Play from edit point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
2035         play_items.push_back (MenuElem (_("Play from start"), sigc::mem_fun(*this, &Editor::play_from_start)));
2036         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2037
2038         /* Selection */
2039
2040         Menu *select_menu = manage (new Menu);
2041         MenuList& select_items = select_menu->items();
2042         select_menu->set_name ("ArdourContextMenu");
2043
2044         select_items.push_back (MenuElem (_("Select All in track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2045         select_items.push_back (MenuElem (_("Select All"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all), Selection::Set)));
2046         select_items.push_back (MenuElem (_("Invert selection in track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
2047         select_items.push_back (MenuElem (_("Invert selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
2048         select_items.push_back (SeparatorElem());
2049         select_items.push_back (MenuElem (_("Select all after edit point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
2050         select_items.push_back (MenuElem (_("Select all before edit point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
2051         select_items.push_back (MenuElem (_("Select all after playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2052         select_items.push_back (MenuElem (_("Select all before playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2053
2054         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2055
2056         /* Cut-n-Paste */
2057
2058         Menu *cutnpaste_menu = manage (new Menu);
2059         MenuList& cutnpaste_items = cutnpaste_menu->items();
2060         cutnpaste_menu->set_name ("ArdourContextMenu");
2061
2062         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
2063         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
2064         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f)));
2065
2066         Menu *nudge_menu = manage (new Menu());
2067         MenuList& nudge_items = nudge_menu->items();
2068         nudge_menu->set_name ("ArdourContextMenu");
2069
2070         edit_items.push_back (SeparatorElem());
2071         nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2072         nudge_items.push_back (MenuElem (_("Nudge track after edit point fwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2073         nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2074         nudge_items.push_back (MenuElem (_("Nudge track after edit point bwd"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2075
2076         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2077 }
2078
2079 SnapType
2080 Editor::snap_type() const
2081 {
2082         return _snap_type;
2083 }
2084
2085 SnapMode
2086 Editor::snap_mode() const
2087 {
2088         return _snap_mode;
2089 }
2090
2091 void
2092 Editor::set_snap_to (SnapType st)
2093 {
2094         unsigned int snap_ind = (unsigned int)st;
2095
2096         _snap_type = st;
2097
2098         if (snap_ind > snap_type_strings.size() - 1) {
2099                 snap_ind = 0;
2100                 _snap_type = (SnapType)snap_ind;
2101         }
2102
2103         string str = snap_type_strings[snap_ind];
2104
2105         if (str != snap_type_selector.get_active_text()) {
2106                 snap_type_selector.set_active_text (str);
2107         }
2108
2109         instant_save ();
2110
2111         switch (_snap_type) {
2112         case SnapToAThirtysecondBeat:
2113         case SnapToASixteenthBeat:
2114         case SnapToAEighthBeat:
2115         case SnapToAQuarterBeat:
2116         case SnapToAThirdBeat:
2117                 compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
2118                 update_tempo_based_rulers ();
2119                 break;
2120
2121         case SnapToRegionStart:
2122         case SnapToRegionEnd:
2123         case SnapToRegionSync:
2124         case SnapToRegionBoundary:
2125                 build_region_boundary_cache ();
2126                 break;
2127
2128         default:
2129                 /* relax */
2130                 break;
2131     }
2132 }
2133
2134 void
2135 Editor::set_snap_mode (SnapMode mode)
2136 {
2137         _snap_mode = mode;
2138         string str = snap_mode_strings[(int)mode];
2139
2140         if (str != snap_mode_selector.get_active_text ()) {
2141                 snap_mode_selector.set_active_text (str);
2142         }
2143
2144         instant_save ();
2145 }
2146 void
2147 Editor::set_edit_point_preference (EditPoint ep, bool force)
2148 {
2149         bool changed = (_edit_point != ep);
2150
2151         _edit_point = ep;
2152         string str = edit_point_strings[(int)ep];
2153
2154         if (str != edit_point_selector.get_active_text ()) {
2155                 edit_point_selector.set_active_text (str);
2156         }
2157
2158         set_canvas_cursor ();
2159
2160         if (!force && !changed) {
2161                 return;
2162         }
2163
2164         const char* action=NULL;
2165
2166         switch (_edit_point) {
2167         case EditAtPlayhead:
2168                 action = "edit-at-playhead";
2169                 break;
2170         case EditAtSelectedMarker:
2171                 action = "edit-at-marker";
2172                 break;
2173         case EditAtMouse:
2174                 action = "edit-at-mouse";
2175                 break;
2176         }
2177
2178         Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
2179         if (act) {
2180                 Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
2181         }
2182
2183         nframes64_t foo;
2184         bool in_track_canvas;
2185
2186         if (!mouse_frame (foo, in_track_canvas)) {
2187                 in_track_canvas = false;
2188         }
2189
2190         reset_canvas_action_sensitivity (in_track_canvas);
2191
2192         instant_save ();
2193 }
2194
2195 int
2196 Editor::set_state (const XMLNode& node, int /*version*/)
2197 {
2198         const XMLProperty* prop;
2199         XMLNode* geometry;
2200         int x, y, xoff, yoff;
2201         Gdk::Geometry g;
2202
2203         if ((prop = node.property ("id")) != 0) {
2204                 _id = prop->value ();
2205         }
2206
2207         g.base_width = default_width;
2208         g.base_height = default_height;
2209         x = 1;
2210         y = 1;
2211         xoff = 0;
2212         yoff = 21;
2213
2214         if ((geometry = find_named_node (node, "geometry")) != 0) {
2215
2216                 XMLProperty* prop;
2217
2218                 if ((prop = geometry->property("x_size")) == 0) {
2219                         prop = geometry->property ("x-size");
2220                 }
2221                 if (prop) {
2222                         g.base_width = atoi(prop->value());
2223                 }
2224                 if ((prop = geometry->property("y_size")) == 0) {
2225                         prop = geometry->property ("y-size");
2226                 }
2227                 if (prop) {
2228                         g.base_height = atoi(prop->value());
2229                 }
2230
2231                 if ((prop = geometry->property ("x_pos")) == 0) {
2232                         prop = geometry->property ("x-pos");
2233                 }
2234                 if (prop) {
2235                         x = atoi (prop->value());
2236
2237                 }
2238                 if ((prop = geometry->property ("y_pos")) == 0) {
2239                         prop = geometry->property ("y-pos");
2240                 }
2241                 if (prop) {
2242                         y = atoi (prop->value());
2243                 }
2244
2245                 if ((prop = geometry->property ("x_off")) == 0) {
2246                         prop = geometry->property ("x-off");
2247                 }
2248                 if (prop) {
2249                         xoff = atoi (prop->value());
2250                 }
2251                 if ((prop = geometry->property ("y_off")) == 0) {
2252                         prop = geometry->property ("y-off");
2253                 }
2254                 if (prop) {
2255                         yoff = atoi (prop->value());
2256                 }
2257         }
2258
2259         set_default_size (g.base_width, g.base_height);
2260         move (x, y);
2261
2262         if (_session && (prop = node.property ("playhead"))) {
2263                 nframes64_t pos = atol (prop->value().c_str());
2264                 playhead_cursor->set_position (pos);
2265         } else {
2266                 playhead_cursor->set_position (0);
2267         }
2268
2269         if ((prop = node.property ("mixer-width"))) {
2270                 editor_mixer_strip_width = Width (string_2_enum (prop->value(), editor_mixer_strip_width));
2271         }
2272
2273         if ((prop = node.property ("zoom-focus"))) {
2274                 set_zoom_focus ((ZoomFocus) atoi (prop->value()));
2275         }
2276
2277         if ((prop = node.property ("zoom"))) {
2278                 reset_zoom (PBD::atof (prop->value()));
2279         }
2280
2281         if ((prop = node.property ("snap-to"))) {
2282                 set_snap_to ((SnapType) atoi (prop->value()));
2283         }
2284
2285         if ((prop = node.property ("snap-mode"))) {
2286                 set_snap_mode ((SnapMode) atoi (prop->value()));
2287         }
2288
2289         if ((prop = node.property ("mouse-mode"))) {
2290                 MouseMode m = str2mousemode(prop->value());
2291                 set_mouse_mode (m, true);
2292         } else {
2293                 set_mouse_mode (MouseObject, true);
2294         }
2295
2296         if ((prop = node.property ("left-frame")) != 0){
2297                 nframes64_t pos;
2298                 if (sscanf (prop->value().c_str(), "%" PRId64, &pos) == 1) {
2299                         reset_x_origin (pos);
2300                         /* this hack prevents the initial call to update_current_screen() from doing re-centering on the playhead */
2301                         last_update_frame = pos;
2302                 }
2303         }
2304
2305         if ((prop = node.property ("internal-edit"))) {
2306                 bool yn = string_is_affirmative (prop->value());
2307                 RefPtr<Action> act = ActionManager::get_action (X_("MouseMode"), X_("toggle-internal-edit"));
2308                 if (act) {
2309                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2310                         tact->set_active (!yn);
2311                         tact->set_active (yn);
2312                 }
2313         }
2314
2315         if ((prop = node.property ("join-object-range"))) {
2316                 join_object_range_button.set_active (string_is_affirmative (prop->value ()));
2317         }
2318
2319         if ((prop = node.property ("edit-point"))) {
2320                 set_edit_point_preference ((EditPoint) string_2_enum (prop->value(), _edit_point), true);
2321         }
2322
2323         if ((prop = node.property ("show-waveforms-recording"))) {
2324                 bool yn = string_is_affirmative (prop->value());
2325                 _show_waveforms_recording = !yn;
2326                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformsWhileRecording"));
2327                 if (act) {
2328                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2329                         /* do it twice to force the change */
2330                         tact->set_active (!yn);
2331                         tact->set_active (yn);
2332                 }
2333         }
2334
2335         if ((prop = node.property ("show-measures"))) {
2336                 bool yn = string_is_affirmative (prop->value());
2337                 _show_measures = !yn;
2338                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
2339                 if (act) {
2340                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2341                         /* do it twice to force the change */
2342                         tact->set_active (!yn);
2343                         tact->set_active (yn);
2344                 }
2345         }
2346
2347         if ((prop = node.property ("follow-playhead"))) {
2348                 bool yn = string_is_affirmative (prop->value());
2349                 set_follow_playhead (yn);
2350                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
2351                 if (act) {
2352                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2353                         if (tact->get_active() != yn) {
2354                                 tact->set_active (yn);
2355                         }
2356                 }
2357         }
2358
2359         if ((prop = node.property ("region-list-sort-type"))) {
2360                 _regions->reset_sort_type (str2regionlistsorttype(prop->value()), true);
2361         }
2362
2363         if ((prop = node.property ("xfades-visible"))) {
2364                 bool yn = string_is_affirmative (prop->value());
2365                 _xfade_visibility = !yn;
2366                 // set_xfade_visibility (yn);
2367         }
2368
2369         if ((prop = node.property ("show-editor-mixer"))) {
2370
2371                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2372                 if (act) {
2373
2374                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2375                         bool yn = string_is_affirmative (prop->value());
2376
2377                         /* do it twice to force the change */
2378
2379                         tact->set_active (!yn);
2380                         tact->set_active (yn);
2381                 }
2382         }
2383
2384         if ((prop = node.property ("show-editor-list"))) {
2385
2386                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2387                 assert(act);
2388                 if (act) {
2389
2390                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2391                         bool yn = string_is_affirmative (prop->value());
2392
2393                         /* do it twice to force the change */
2394
2395                         tact->set_active (!yn);
2396                         tact->set_active (yn);
2397                 }
2398         }
2399
2400
2401         return 0;
2402 }
2403
2404 XMLNode&
2405 Editor::get_state ()
2406 {
2407         XMLNode* node = new XMLNode ("Editor");
2408         char buf[32];
2409
2410         _id.print (buf, sizeof (buf));
2411         node->add_property ("id", buf);
2412
2413         if (is_realized()) {
2414                 Glib::RefPtr<Gdk::Window> win = get_window();
2415
2416                 int x, y, xoff, yoff, width, height;
2417                 win->get_root_origin(x, y);
2418                 win->get_position(xoff, yoff);
2419                 win->get_size(width, height);
2420
2421                 XMLNode* geometry = new XMLNode ("geometry");
2422
2423                 snprintf(buf, sizeof(buf), "%d", width);
2424                 geometry->add_property("x-size", string(buf));
2425                 snprintf(buf, sizeof(buf), "%d", height);
2426                 geometry->add_property("y-size", string(buf));
2427                 snprintf(buf, sizeof(buf), "%d", x);
2428                 geometry->add_property("x-pos", string(buf));
2429                 snprintf(buf, sizeof(buf), "%d", y);
2430                 geometry->add_property("y-pos", string(buf));
2431                 snprintf(buf, sizeof(buf), "%d", xoff);
2432                 geometry->add_property("x-off", string(buf));
2433                 snprintf(buf, sizeof(buf), "%d", yoff);
2434                 geometry->add_property("y-off", string(buf));
2435                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
2436                 geometry->add_property("edit_pane_pos", string(buf));
2437
2438                 node->add_child_nocopy (*geometry);
2439         }
2440
2441         maybe_add_mixer_strip_width (*node);
2442
2443         snprintf (buf, sizeof(buf), "%d", (int) zoom_focus);
2444         node->add_property ("zoom-focus", buf);
2445         snprintf (buf, sizeof(buf), "%f", frames_per_unit);
2446         node->add_property ("zoom", buf);
2447         snprintf (buf, sizeof(buf), "%d", (int) _snap_type);
2448         node->add_property ("snap-to", buf);
2449         snprintf (buf, sizeof(buf), "%d", (int) _snap_mode);
2450         node->add_property ("snap-mode", buf);
2451
2452         node->add_property ("edit-point", enum_2_string (_edit_point));
2453
2454         snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame);
2455         node->add_property ("playhead", buf);
2456         snprintf (buf, sizeof (buf), "%" PRIi64, leftmost_frame);
2457         node->add_property ("left-frame", buf);
2458
2459         node->add_property ("show-waveforms-recording", _show_waveforms_recording ? "yes" : "no");
2460         node->add_property ("show-measures", _show_measures ? "yes" : "no");
2461         node->add_property ("follow-playhead", _follow_playhead ? "yes" : "no");
2462         node->add_property ("xfades-visible", _xfade_visibility ? "yes" : "no");
2463         node->add_property ("region-list-sort-type", enum2str (_regions->sort_type ()));
2464         node->add_property ("mouse-mode", enum2str(mouse_mode));
2465         node->add_property ("internal-edit", _internal_editing ? "yes" : "no");
2466         node->add_property ("join-object-range", join_object_range_button.get_active () ? "yes" : "no");
2467
2468         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2469         if (act) {
2470                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2471                 node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
2472         }
2473
2474         act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2475         if (act) {
2476                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2477                 node->add_property (X_("show-editor-list"), tact->get_active() ? "yes" : "no");
2478         }
2479
2480         return *node;
2481 }
2482
2483
2484
2485 /** @param y y offset from the top of all trackviews.
2486  *  @return pair: TimeAxisView that y is over, layer index.
2487  *  TimeAxisView may be 0.  Layer index is the layer number if the TimeAxisView is valid and is
2488  *  in stacked region display mode, otherwise 0.
2489  */
2490 std::pair<TimeAxisView *, layer_t>
2491 Editor::trackview_by_y_position (double y)
2492 {
2493         for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
2494
2495                 std::pair<TimeAxisView*, int> const r = (*iter)->covers_y_position (y);
2496                 if (r.first) {
2497                         return r;
2498                 }
2499         }
2500
2501         return std::make_pair ( (TimeAxisView *) 0, 0);
2502 }
2503
2504 /** Snap a position to the grid, if appropriate, taking into account current
2505  *  grid settings and also the state of any snap modifier keys that may be pressed.
2506  *  @param start Position to snap.
2507  *  @param event Event to get current key modifier information from, or 0.
2508  */
2509 void
2510 Editor::snap_to_with_modifier (nframes64_t& start, GdkEvent const * event, int32_t direction, bool for_mark)
2511 {
2512         if (!_session || !event) {
2513                 return;
2514         }
2515
2516         if (Keyboard::modifier_state_contains (event->button.state, Keyboard::snap_modifier())) {
2517                 if (_snap_mode == SnapOff) {
2518                         snap_to_internal (start, direction, for_mark);
2519                 }
2520         } else {
2521                 if (_snap_mode != SnapOff) {
2522                         snap_to_internal (start, direction, for_mark);
2523                 }
2524         }
2525 }
2526
2527 void
2528 Editor::snap_to (nframes64_t& start, int32_t direction, bool for_mark)
2529 {
2530         if (!_session || _snap_mode == SnapOff) {
2531                 return;
2532         }
2533
2534         snap_to_internal (start, direction, for_mark);
2535 }
2536
2537 void
2538 Editor::timecode_snap_to_internal (nframes64_t& start, int32_t direction, bool /*for_mark*/)
2539 {
2540         const nframes64_t one_timecode_second = (nframes64_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame());
2541         nframes64_t one_timecode_minute = (nframes64_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame() * 60);
2542
2543         switch (_snap_type) {
2544         case SnapToTimecodeFrame:
2545                 if (((direction == 0) && (fmod((double)start, (double)_session->frames_per_timecode_frame()) > (_session->frames_per_timecode_frame() / 2))) || (direction > 0)) {
2546                         start = (nframes64_t) (ceil ((double) start / _session->frames_per_timecode_frame()) * _session->frames_per_timecode_frame());
2547                 } else {
2548                         start = (nframes64_t) (floor ((double) start / _session->frames_per_timecode_frame()) *  _session->frames_per_timecode_frame());
2549                 }
2550                 break;
2551
2552         case SnapToTimecodeSeconds:
2553                 if (_session->timecode_offset_negative())
2554                 {
2555                         start += _session->timecode_offset ();
2556                 } else {
2557                         start -= _session->timecode_offset ();
2558                 }
2559                 if (((direction == 0) && (start % one_timecode_second > one_timecode_second / 2)) || direction > 0) {
2560                         start = (nframes64_t) ceil ((double) start / one_timecode_second) * one_timecode_second;
2561                 } else {
2562                         start = (nframes64_t) floor ((double) start / one_timecode_second) * one_timecode_second;
2563                 }
2564
2565                 if (_session->timecode_offset_negative())
2566                 {
2567                         start -= _session->timecode_offset ();
2568                 } else {
2569                         start += _session->timecode_offset ();
2570                 }
2571                 break;
2572
2573         case SnapToTimecodeMinutes:
2574                 if (_session->timecode_offset_negative())
2575                 {
2576                         start += _session->timecode_offset ();
2577                 } else {
2578                         start -= _session->timecode_offset ();
2579                 }
2580                 if (((direction == 0) && (start % one_timecode_minute > one_timecode_minute / 2)) || direction > 0) {
2581                         start = (nframes64_t) ceil ((double) start / one_timecode_minute) * one_timecode_minute;
2582                 } else {
2583                         start = (nframes64_t) floor ((double) start / one_timecode_minute) * one_timecode_minute;
2584                 }
2585                 if (_session->timecode_offset_negative())
2586                 {
2587                         start -= _session->timecode_offset ();
2588                 } else {
2589                         start += _session->timecode_offset ();
2590                 }
2591                 break;
2592         default:
2593                 fatal << "Editor::smpte_snap_to_internal() called with non-timecode snap type!" << endmsg;
2594                 /*NOTREACHED*/
2595         }
2596 }
2597
2598 void
2599 Editor::snap_to_internal (nframes64_t& start, int32_t direction, bool for_mark)
2600 {
2601         const nframes64_t one_second = _session->frame_rate();
2602         const nframes64_t one_minute = _session->frame_rate() * 60;
2603         nframes64_t presnap = start;
2604         nframes64_t before;
2605         nframes64_t after;
2606
2607         switch (_snap_type) {
2608         case SnapToTimecodeFrame:
2609         case SnapToTimecodeSeconds:
2610         case SnapToTimecodeMinutes:
2611                 return timecode_snap_to_internal (start, direction, for_mark);
2612
2613         case SnapToCDFrame:
2614                 if (((direction == 0) && (start % (one_second/75) > (one_second/75) / 2)) || (direction > 0)) {
2615                         start = (nframes64_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
2616                 } else {
2617                         start = (nframes64_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
2618                 }
2619                 break;
2620
2621         case SnapToSeconds:
2622                 if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
2623                         start = (nframes64_t) ceil ((double) start / one_second) * one_second;
2624                 } else {
2625                         start = (nframes64_t) floor ((double) start / one_second) * one_second;
2626                 }
2627                 break;
2628
2629         case SnapToMinutes:
2630                 if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
2631                         start = (nframes64_t) ceil ((double) start / one_minute) * one_minute;
2632                 } else {
2633                         start = (nframes64_t) floor ((double) start / one_minute) * one_minute;
2634                 }
2635                 break;
2636
2637         case SnapToBar:
2638                 start = _session->tempo_map().round_to_bar (start, direction);
2639                 break;
2640
2641         case SnapToBeat:
2642                 start = _session->tempo_map().round_to_beat (start, direction);
2643                 break;
2644
2645         case SnapToAThirtysecondBeat:
2646                 start = _session->tempo_map().round_to_beat_subdivision (start, 32, direction);
2647                 break;
2648
2649         case SnapToASixteenthBeat:
2650                 start = _session->tempo_map().round_to_beat_subdivision (start, 16, direction);
2651                 break;
2652
2653         case SnapToAEighthBeat:
2654                 start = _session->tempo_map().round_to_beat_subdivision (start, 8, direction);
2655                 break;
2656
2657         case SnapToAQuarterBeat:
2658                 start = _session->tempo_map().round_to_beat_subdivision (start, 4, direction);
2659                 break;
2660
2661         case SnapToAThirdBeat:
2662                 start = _session->tempo_map().round_to_beat_subdivision (start, 3, direction);
2663                 break;
2664
2665         case SnapToMark:
2666                 if (for_mark) {
2667                         return;
2668                 }
2669
2670                 _session->locations()->marks_either_side (start, before, after);
2671
2672                 if (before == max_frames) {
2673                         start = after;
2674                 } else if (after == max_frames) {
2675                         start = before;
2676                 } else if (before != max_frames && after != max_frames) {
2677                         /* have before and after */
2678                         if ((start - before) < (after - start)) {
2679                                 start = before;
2680                         } else {
2681                                 start = after;
2682                         }
2683                 }
2684
2685                 break;
2686
2687         case SnapToRegionStart:
2688         case SnapToRegionEnd:
2689         case SnapToRegionSync:
2690         case SnapToRegionBoundary:
2691                 if (!region_boundary_cache.empty()) {
2692
2693                         vector<nframes64_t>::iterator prev = region_boundary_cache.end ();
2694                         vector<nframes64_t>::iterator next = region_boundary_cache.end ();
2695
2696                         if (direction > 0) {
2697                                 next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2698                         } else {
2699                                 next = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2700                         }
2701
2702                         if (next != region_boundary_cache.begin ()) {
2703                                 prev = next;
2704                                 prev--;
2705                         }
2706
2707                         nframes64_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
2708                         nframes64_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
2709
2710                         if (start > (p + n) / 2) {
2711                                 start = n;
2712                         } else {
2713                                 start = p;
2714                         }
2715                 }
2716                 break;
2717         }
2718
2719         switch (_snap_mode) {
2720         case SnapNormal:
2721                 return;
2722
2723         case SnapMagnetic:
2724
2725                 if (presnap > start) {
2726                         if (presnap > (start + unit_to_frame(snap_threshold))) {
2727                                 start = presnap;
2728                         }
2729
2730                 } else if (presnap < start) {
2731                         if (presnap < (start - unit_to_frame(snap_threshold))) {
2732                                 start = presnap;
2733                         }
2734                 }
2735
2736         default:
2737                 /* handled at entry */
2738                 return;
2739
2740         }
2741 }
2742
2743
2744 void
2745 Editor::setup_toolbar ()
2746 {
2747         string pixmap_path;
2748
2749         /* Mode Buttons (tool selection) */
2750
2751         mouse_move_button.set_relief(Gtk::RELIEF_NONE);
2752         mouse_select_button.set_relief(Gtk::RELIEF_NONE);
2753         mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
2754         mouse_zoom_button.set_relief(Gtk::RELIEF_NONE);
2755         mouse_timefx_button.set_relief(Gtk::RELIEF_NONE);
2756         mouse_audition_button.set_relief(Gtk::RELIEF_NONE);
2757         // internal_edit_button.set_relief(Gtk::RELIEF_NONE);
2758         join_object_range_button.set_relief(Gtk::RELIEF_NONE);
2759
2760         HBox* mode_box = manage(new HBox);
2761         mode_box->set_border_width (2);
2762         mode_box->set_spacing(4);
2763
2764         /* table containing mode buttons */
2765
2766         Table* mouse_mode_button_table = manage (new Table (Profile->get_sae() ? 4 : 6, 2));
2767
2768         int c = 0;
2769
2770         if (Profile->get_sae()) {
2771                 mouse_mode_button_table->attach (mouse_move_button, c, c + 1, 0, 1);
2772                 ++c;
2773         } else {
2774                 mouse_mode_button_table->attach (mouse_move_button, c, c + 1, 0, 1);
2775                 mouse_mode_button_table->attach (mouse_select_button, c + 1, c + 2, 0, 1);
2776                 mouse_mode_button_table->attach (join_object_range_button, c, c + 2, 1, 2);
2777                 c += 2;
2778         }
2779
2780         mouse_mode_button_table->attach (mouse_zoom_button, c, c + 1, 0, 1);
2781         ++c;
2782
2783         if (!Profile->get_sae()) {
2784                 mouse_mode_button_table->attach (mouse_gain_button, c, c + 1, 0, 1);
2785                 ++c;
2786         }
2787
2788         mouse_mode_button_table->attach (mouse_timefx_button, c, c + 1, 0, 1);
2789         ++c;
2790
2791         mouse_mode_button_table->attach (mouse_audition_button, c, c + 1, 0, 1);
2792         ++c;
2793
2794         mouse_mode_button_table->attach (internal_edit_button, c, c + 1, 0, 1);
2795         ++c;
2796
2797         vector<string> edit_mode_strings;
2798         edit_mode_strings.push_back (edit_mode_to_string (Slide));
2799         if (!Profile->get_sae()) {
2800                 edit_mode_strings.push_back (edit_mode_to_string (Splice));
2801         }
2802         edit_mode_strings.push_back (edit_mode_to_string (Lock));
2803
2804         edit_mode_selector.set_name ("EditModeSelector");
2805         set_popdown_strings (edit_mode_selector, edit_mode_strings, true);
2806         edit_mode_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::edit_mode_selection_done));
2807
2808         mode_box->pack_start (edit_mode_selector);
2809         mode_box->pack_start (*mouse_mode_button_table);
2810
2811         mouse_mode_tearoff = manage (new TearOff (*mode_box));
2812         mouse_mode_tearoff->set_name ("MouseModeBase");
2813         mouse_mode_tearoff->tearoff_window().signal_key_press_event().connect (sigc::bind (sigc::ptr_fun (relay_key_press), &mouse_mode_tearoff->tearoff_window()), false);
2814
2815         if (Profile->get_sae()) {
2816                 mouse_mode_tearoff->set_can_be_torn_off (false);
2817         }
2818
2819         mouse_mode_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2820                                                   &mouse_mode_tearoff->tearoff_window()));
2821         mouse_mode_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2822                                                   &mouse_mode_tearoff->tearoff_window(), 1));
2823         mouse_mode_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2824                                                   &mouse_mode_tearoff->tearoff_window()));
2825         mouse_mode_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2826                                                    &mouse_mode_tearoff->tearoff_window(), 1));
2827
2828         mouse_move_button.set_mode (false);
2829         mouse_select_button.set_mode (false);
2830         mouse_gain_button.set_mode (false);
2831         mouse_zoom_button.set_mode (false);
2832         mouse_timefx_button.set_mode (false);
2833         mouse_audition_button.set_mode (false);
2834         join_object_range_button.set_mode (false);
2835
2836         mouse_move_button.set_name ("MouseModeButton");
2837         mouse_select_button.set_name ("MouseModeButton");
2838         mouse_gain_button.set_name ("MouseModeButton");
2839         mouse_zoom_button.set_name ("MouseModeButton");
2840         mouse_timefx_button.set_name ("MouseModeButton");
2841         mouse_audition_button.set_name ("MouseModeButton");
2842         internal_edit_button.set_name ("MouseModeButton");
2843         join_object_range_button.set_name ("MouseModeButton");
2844
2845         mouse_move_button.unset_flags (CAN_FOCUS);
2846         mouse_select_button.unset_flags (CAN_FOCUS);
2847         mouse_gain_button.unset_flags (CAN_FOCUS);
2848         mouse_zoom_button.unset_flags (CAN_FOCUS);
2849         mouse_timefx_button.unset_flags (CAN_FOCUS);
2850         mouse_audition_button.unset_flags (CAN_FOCUS);
2851         internal_edit_button.unset_flags (CAN_FOCUS);
2852         join_object_range_button.unset_flags (CAN_FOCUS);
2853
2854         /* Zoom */
2855
2856         zoom_box.set_spacing (1);
2857         zoom_box.set_border_width (0);
2858
2859         zoom_in_button.set_name ("EditorTimeButton");
2860         zoom_in_button.set_image (*(manage (new Image (Stock::ZOOM_IN, Gtk::ICON_SIZE_BUTTON))));
2861         zoom_in_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_step), false));
2862         ARDOUR_UI::instance()->tooltips().set_tip (zoom_in_button, _("Zoom In"));
2863
2864         zoom_out_button.set_name ("EditorTimeButton");
2865         zoom_out_button.set_image (*(manage (new Image (Stock::ZOOM_OUT, Gtk::ICON_SIZE_BUTTON))));
2866         zoom_out_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::temporal_zoom_step), true));
2867         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_button, _("Zoom Out"));
2868
2869         zoom_out_full_button.set_name ("EditorTimeButton");
2870         zoom_out_full_button.set_image (*(manage (new Image (Stock::ZOOM_100, Gtk::ICON_SIZE_BUTTON))));
2871         zoom_out_full_button.signal_clicked().connect (sigc::mem_fun(*this, &Editor::temporal_zoom_session));
2872         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to Session"));
2873
2874         zoom_focus_selector.set_name ("ZoomFocusSelector");
2875         set_popdown_strings (zoom_focus_selector, zoom_focus_strings, true);
2876         zoom_focus_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done));
2877         ARDOUR_UI::instance()->tooltips().set_tip (zoom_focus_selector, _("Zoom focus"));
2878
2879         zoom_box.pack_start (zoom_out_button, false, false);
2880         zoom_box.pack_start (zoom_in_button, false, false);
2881         zoom_box.pack_start (zoom_out_full_button, false, false);
2882
2883         /* Track zoom buttons */
2884         tav_expand_button.set_name ("TrackHeightButton");
2885         tav_expand_button.set_size_request(-1,20);
2886         tav_expand_button.add (*(manage (new Image (::get_icon("tav_exp")))));
2887         tav_expand_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::tav_zoom_step), true));
2888         ARDOUR_UI::instance()->tooltips().set_tip (tav_expand_button, _("Expand Tracks"));
2889
2890         tav_shrink_button.set_name ("TrackHeightButton");
2891         tav_shrink_button.set_size_request(-1,20);
2892         tav_shrink_button.add (*(manage (new Image (::get_icon("tav_shrink")))));
2893         tav_shrink_button.signal_clicked().connect (sigc::bind (sigc::mem_fun(*this, &Editor::tav_zoom_step), false));
2894         ARDOUR_UI::instance()->tooltips().set_tip (tav_shrink_button, _("Shrink Tracks"));
2895
2896         track_zoom_box.set_spacing (1);
2897         track_zoom_box.set_border_width (0);
2898
2899         track_zoom_box.pack_start (tav_shrink_button, false, false);
2900         track_zoom_box.pack_start (tav_expand_button, false, false);
2901
2902         HBox* zbc = manage (new HBox);
2903         zbc->pack_start (zoom_focus_selector, PACK_SHRINK);
2904         zoom_vbox.pack_start (*zbc, PACK_SHRINK);
2905         zoom_vbox.pack_start (zoom_box, PACK_SHRINK);
2906         zoom_vbox.pack_start (track_zoom_box, PACK_SHRINK);
2907
2908         snap_box.set_spacing (1);
2909         snap_box.set_border_width (2);
2910
2911         snap_type_selector.set_name ("SnapTypeSelector");
2912         set_popdown_strings (snap_type_selector, snap_type_strings, true);
2913         snap_type_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::snap_type_selection_done));
2914         ARDOUR_UI::instance()->tooltips().set_tip (snap_type_selector, _("Snap/Grid Units"));
2915
2916         snap_mode_selector.set_name ("SnapModeSelector");
2917         set_popdown_strings (snap_mode_selector, snap_mode_strings, true);
2918         snap_mode_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::snap_mode_selection_done));
2919         ARDOUR_UI::instance()->tooltips().set_tip (snap_mode_selector, _("Snap/Grid Mode"));
2920
2921         edit_point_selector.set_name ("EditPointSelector");
2922         set_popdown_strings (edit_point_selector, edit_point_strings, true);
2923         edit_point_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::edit_point_selection_done));
2924         ARDOUR_UI::instance()->tooltips().set_tip (edit_point_selector, _("Edit point"));
2925
2926         snap_box.pack_start (snap_mode_selector, false, false);
2927         snap_box.pack_start (snap_type_selector, false, false);
2928         snap_box.pack_start (edit_point_selector, false, false);
2929
2930         /* Nudge */
2931
2932         HBox *nudge_box = manage (new HBox);
2933         nudge_box->set_spacing(1);
2934         nudge_box->set_border_width (2);
2935
2936         nudge_forward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_forward_release), false);
2937         nudge_backward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_backward_release), false);
2938
2939         nudge_box->pack_start (nudge_backward_button, false, false);
2940         nudge_box->pack_start (nudge_forward_button, false, false);
2941         nudge_box->pack_start (nudge_clock, false, false);
2942
2943
2944         /* Pack everything in... */
2945
2946         HBox* hbox = manage (new HBox);
2947         hbox->set_spacing(10);
2948
2949         tools_tearoff = manage (new TearOff (*hbox));
2950         tools_tearoff->set_name ("MouseModeBase");
2951         tools_tearoff->tearoff_window().signal_key_press_event().connect (sigc::bind (sigc::ptr_fun (relay_key_press), &tools_tearoff->tearoff_window()), false);
2952
2953         if (Profile->get_sae()) {
2954                 tools_tearoff->set_can_be_torn_off (false);
2955         }
2956
2957         tools_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2958                                              &tools_tearoff->tearoff_window()));
2959         tools_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2960                                              &tools_tearoff->tearoff_window(), 0));
2961         tools_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2962                                              &tools_tearoff->tearoff_window()));
2963         tools_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2964                                               &tools_tearoff->tearoff_window(), 0));
2965
2966         toolbar_hbox.set_spacing (10);
2967         toolbar_hbox.set_border_width (1);
2968
2969         toolbar_hbox.pack_start (*mouse_mode_tearoff, false, false);
2970         toolbar_hbox.pack_start (*tools_tearoff, false, false);
2971
2972         hbox->pack_start (snap_box, false, false);
2973         hbox->pack_start (*nudge_box, false, false);
2974         hbox->pack_start (panic_box, false, false);
2975
2976         hbox->show_all ();
2977
2978         toolbar_base.set_name ("ToolBarBase");
2979         toolbar_base.add (toolbar_hbox);
2980
2981         toolbar_frame.set_shadow_type (SHADOW_OUT);
2982         toolbar_frame.set_name ("BaseFrame");
2983         toolbar_frame.add (toolbar_base);
2984 }
2985
2986 void
2987 Editor::midi_panic ()
2988 {
2989         cerr << "MIDI panic\n";
2990
2991         if (_session) {
2992                 _session->midi_panic();
2993         }
2994 }
2995
2996 void
2997 Editor::setup_midi_toolbar ()
2998 {
2999         RefPtr<Action> act;
3000
3001         /* Midi sound notes */
3002         midi_sound_notes.add (*(manage (new Image (::get_icon("midi_sound_notes")))));
3003         midi_sound_notes.set_relief(Gtk::RELIEF_NONE);
3004         ARDOUR_UI::instance()->tooltips().set_tip (midi_sound_notes, _("Sound Notes"));
3005         midi_sound_notes.unset_flags (CAN_FOCUS);
3006
3007         /* Panic */
3008
3009         act = ActionManager::get_action (X_("MIDI"), X_("panic"));
3010         midi_panic_button.set_name("MidiPanicButton");
3011         ARDOUR_UI::instance()->tooltips().set_tip (midi_panic_button, _("Send note off and reset controller messages on all MIDI channels"));
3012         act->connect_proxy (midi_panic_button);
3013
3014         panic_box.pack_start (midi_sound_notes , true, true);
3015         panic_box.pack_start (midi_panic_button, true, true);
3016 }
3017
3018 int
3019 Editor::convert_drop_to_paths (
3020                 vector<ustring>&                paths,
3021                 const RefPtr<Gdk::DragContext>& /*context*/,
3022                 gint                            /*x*/,
3023                 gint                            /*y*/,
3024                 const SelectionData&            data,
3025                 guint                           /*info*/,
3026                 guint                           /*time*/)
3027 {
3028         if (_session == 0) {
3029                 return -1;
3030         }
3031
3032         vector<ustring> uris = data.get_uris();
3033
3034         if (uris.empty()) {
3035
3036                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
3037                    are actually URI lists. So do it by hand.
3038                 */
3039
3040                 if (data.get_target() != "text/plain") {
3041                         return -1;
3042                 }
3043
3044                 /* Parse the "uri-list" format that Nautilus provides,
3045                    where each pathname is delimited by \r\n.
3046
3047                    THERE MAY BE NO NULL TERMINATING CHAR!!!
3048                 */
3049
3050                 ustring txt = data.get_text();
3051                 const char* p;
3052                 const char* q;
3053
3054                 p = (const char *) malloc (txt.length() + 1);
3055                 txt.copy ((char *) p, txt.length(), 0);
3056                 ((char*)p)[txt.length()] = '\0';
3057
3058                 while (p)
3059                 {
3060                         if (*p != '#')
3061                         {
3062                                 while (g_ascii_isspace (*p))
3063                                         p++;
3064
3065                                 q = p;
3066                                 while (*q && (*q != '\n') && (*q != '\r')) {
3067                                         q++;
3068                                 }
3069
3070                                 if (q > p)
3071                                 {
3072                                         q--;
3073                                         while (q > p && g_ascii_isspace (*q))
3074                                                 q--;
3075
3076                                         if (q > p)
3077                                         {
3078                                                 uris.push_back (ustring (p, q - p + 1));
3079                                         }
3080                                 }
3081                         }
3082                         p = strchr (p, '\n');
3083                         if (p)
3084                                 p++;
3085                 }
3086
3087                 free ((void*)p);
3088
3089                 if (uris.empty()) {
3090                         return -1;
3091                 }
3092         }
3093
3094         for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
3095
3096                 if ((*i).substr (0,7) == "file://") {
3097
3098                         ustring p = *i;
3099                         PBD::url_decode (p);
3100
3101                         // scan forward past three slashes
3102
3103                         ustring::size_type slashcnt = 0;
3104                         ustring::size_type n = 0;
3105                         ustring::iterator x = p.begin();
3106
3107                         while (slashcnt < 3 && x != p.end()) {
3108                                 if ((*x) == '/') {
3109                                         slashcnt++;
3110                                 } else if (slashcnt == 3) {
3111                                         break;
3112                                 }
3113                                 ++n;
3114                                 ++x;
3115                         }
3116
3117                         if (slashcnt != 3 || x == p.end()) {
3118                                 error << _("malformed URL passed to drag-n-drop code") << endmsg;
3119                                 continue;
3120                         }
3121
3122                         paths.push_back (p.substr (n - 1));
3123                 }
3124         }
3125
3126         return 0;
3127 }
3128
3129 void
3130 Editor::new_tempo_section ()
3131
3132 {
3133 }
3134
3135 void
3136 Editor::map_transport_state ()
3137 {
3138         ENSURE_GUI_THREAD (*this, &Editor::map_transport_state)
3139
3140         if (_session->transport_stopped()) {
3141                 have_pending_keyboard_selection = false;
3142         }
3143
3144         update_loop_range_view (true);
3145 }
3146
3147 /* UNDO/REDO */
3148
3149 Editor::State::State (PublicEditor const * e)
3150 {
3151         selection = new Selection (e);
3152 }
3153
3154 Editor::State::~State ()
3155 {
3156         delete selection;
3157 }
3158
3159 void
3160 Editor::begin_reversible_command (string name)
3161 {
3162         if (_session) {
3163                 before = &get_state();
3164                 _session->begin_reversible_command (name);
3165         }
3166 }
3167
3168 void
3169 Editor::commit_reversible_command ()
3170 {
3171         if (_session) {
3172                 _session->commit_reversible_command (new MementoCommand<Editor>(*this, before, &get_state()));
3173         }
3174 }
3175
3176 void
3177 Editor::set_route_group_solo (Route& route, bool yn)
3178 {
3179         RouteGroup *route_group;
3180
3181         if ((route_group = route.route_group()) != 0) {
3182                 route_group->apply (&Route::set_solo, yn, this);
3183         } else {
3184                 route.set_solo (yn, this);
3185         }
3186 }
3187
3188 void
3189 Editor::set_route_group_mute (Route& route, bool yn)
3190 {
3191         RouteGroup *route_group = 0;
3192
3193         if ((route_group == route.route_group()) != 0) {
3194                 route_group->apply (&Route::set_mute, yn, this);
3195         } else {
3196                 route.set_mute (yn, this);
3197         }
3198 }
3199
3200 void
3201 Editor::history_changed ()
3202 {
3203         string label;
3204
3205         if (undo_action && _session) {
3206                 if (_session->undo_depth() == 0) {
3207                         label = _("Undo");
3208                 } else {
3209                         label = string_compose(_("Undo (%1)"), _session->next_undo());
3210                 }
3211                 undo_action->property_label() = label;
3212         }
3213
3214         if (redo_action && _session) {
3215                 if (_session->redo_depth() == 0) {
3216                         label = _("Redo");
3217                 } else {
3218                         label = string_compose(_("Redo (%1)"), _session->next_redo());
3219                 }
3220                 redo_action->property_label() = label;
3221         }
3222 }
3223
3224 void
3225 Editor::duplicate_dialog (bool with_dialog)
3226 {
3227         float times = 1.0f;
3228
3229         if (mouse_mode == MouseRange) {
3230                 if (selection->time.length() == 0) {
3231                         return;
3232                 }
3233         }
3234
3235         RegionSelection rs;
3236         get_regions_for_action (rs);
3237
3238         if (mouse_mode != MouseRange) {
3239
3240                 if (rs.empty()) {
3241                         return;
3242                 }
3243         }
3244
3245         if (with_dialog) {
3246
3247                 ArdourDialog win ("Duplicate");
3248                 Label  label (_("Number of Duplications:"));
3249                 Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
3250                 SpinButton spinner (adjustment, 0.0, 1);
3251                 HBox hbox;
3252
3253                 win.get_vbox()->set_spacing (12);
3254                 win.get_vbox()->pack_start (hbox);
3255                 hbox.set_border_width (6);
3256                 hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
3257
3258                 /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
3259                    place, visually. so do this by hand.
3260                 */
3261
3262                 hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
3263                 spinner.signal_activate().connect (sigc::bind (sigc::mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
3264                 spinner.grab_focus();
3265
3266                 hbox.show ();
3267                 label.show ();
3268                 spinner.show ();
3269
3270                 win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3271                 win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
3272                 win.set_default_response (RESPONSE_ACCEPT);
3273
3274                 win.set_position (WIN_POS_MOUSE);
3275
3276                 spinner.grab_focus ();
3277
3278                 switch (win.run ()) {
3279                 case RESPONSE_ACCEPT:
3280                         break;
3281                 default:
3282                         return;
3283                 }
3284
3285                 times = adjustment.get_value();
3286         }
3287
3288         if (mouse_mode == MouseRange) {
3289                 duplicate_selection (times);
3290         } else {
3291                 duplicate_some_regions (rs, times);
3292         }
3293 }
3294
3295 void
3296 Editor::show_verbose_canvas_cursor ()
3297 {
3298         verbose_canvas_cursor->raise_to_top();
3299         verbose_canvas_cursor->show();
3300         verbose_cursor_visible = true;
3301 }
3302
3303 void
3304 Editor::hide_verbose_canvas_cursor ()
3305 {
3306         verbose_canvas_cursor->hide();
3307         verbose_cursor_visible = false;
3308 }
3309
3310 double
3311 Editor::clamp_verbose_cursor_x (double x)
3312 {
3313         if (x < 0) {
3314                 x = 0;
3315         } else {
3316                 x = min (_canvas_width - 200.0, x);
3317         }
3318         return x;
3319 }
3320
3321 double
3322 Editor::clamp_verbose_cursor_y (double y)
3323 {
3324         if (y < canvas_timebars_vsize) {
3325                 y = canvas_timebars_vsize;
3326         } else {
3327                 y = min (_canvas_height - 50, y);
3328         }
3329         return y;
3330 }
3331
3332 void
3333 Editor::show_verbose_canvas_cursor_with (const string & txt)
3334 {
3335         verbose_canvas_cursor->property_text() = txt.c_str();
3336
3337         int x, y;
3338         double wx, wy;
3339
3340         track_canvas->get_pointer (x, y);
3341         track_canvas->window_to_world (x, y, wx, wy);
3342
3343         /* don't get too close to the edge */
3344         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (wx);
3345         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (wy);
3346
3347         show_verbose_canvas_cursor ();
3348 }
3349
3350 void
3351 Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
3352 {
3353         verbose_canvas_cursor->property_text() = txt.c_str();
3354         /* don't get too close to the edge */
3355         verbose_canvas_cursor->property_x() = clamp_verbose_cursor_x (x);
3356         verbose_canvas_cursor->property_y() = clamp_verbose_cursor_y (y);
3357 }
3358
3359 void
3360 Editor::set_verbose_canvas_cursor_text (const string & txt)
3361 {
3362         verbose_canvas_cursor->property_text() = txt.c_str();
3363 }
3364
3365 void
3366 Editor::set_edit_mode (EditMode m)
3367 {
3368         Config->set_edit_mode (m);
3369 }
3370
3371 void
3372 Editor::cycle_edit_mode ()
3373 {
3374         switch (Config->get_edit_mode()) {
3375         case Slide:
3376                 if (Profile->get_sae()) {
3377                         Config->set_edit_mode (Lock);
3378                 } else {
3379                         Config->set_edit_mode (Splice);
3380                 }
3381                 break;
3382         case Splice:
3383                 Config->set_edit_mode (Lock);
3384                 break;
3385         case Lock:
3386                 Config->set_edit_mode (Slide);
3387                 break;
3388         }
3389 }
3390
3391 void
3392 Editor::edit_mode_selection_done ()
3393 {
3394         if (_session == 0) {
3395                 return;
3396         }
3397
3398         string choice = edit_mode_selector.get_active_text();
3399         EditMode mode = Slide;
3400
3401         if (choice == _("Splice Edit")) {
3402                 mode = Splice;
3403         } else if (choice == _("Slide Edit")) {
3404                 mode = Slide;
3405         } else if (choice == _("Lock Edit")) {
3406                 mode = Lock;
3407         }
3408
3409         Config->set_edit_mode (mode);
3410 }
3411
3412 void
3413 Editor::snap_type_selection_done ()
3414 {
3415         string choice = snap_type_selector.get_active_text();
3416         SnapType snaptype = SnapToBeat;
3417
3418         if (choice == _("Beats/3")) {
3419                 snaptype = SnapToAThirdBeat;
3420         } else if (choice == _("Beats/4")) {
3421                 snaptype = SnapToAQuarterBeat;
3422         } else if (choice == _("Beats/8")) {
3423                 snaptype = SnapToAEighthBeat;
3424         } else if (choice == _("Beats/16")) {
3425                 snaptype = SnapToASixteenthBeat;
3426         } else if (choice == _("Beats/32")) {
3427                 snaptype = SnapToAThirtysecondBeat;
3428         } else if (choice == _("Beats")) {
3429                 snaptype = SnapToBeat;
3430         } else if (choice == _("Bars")) {
3431                 snaptype = SnapToBar;
3432         } else if (choice == _("Marks")) {
3433                 snaptype = SnapToMark;
3434         } else if (choice == _("Region starts")) {
3435                 snaptype = SnapToRegionStart;
3436         } else if (choice == _("Region ends")) {
3437                 snaptype = SnapToRegionEnd;
3438         } else if (choice == _("Region bounds")) {
3439                 snaptype = SnapToRegionBoundary;
3440         } else if (choice == _("Region syncs")) {
3441                 snaptype = SnapToRegionSync;
3442         } else if (choice == _("CD Frames")) {
3443                 snaptype = SnapToCDFrame;
3444         } else if (choice == _("Timecode Frames")) {
3445                 snaptype = SnapToTimecodeFrame;
3446         } else if (choice == _("Timecode Seconds")) {
3447                 snaptype = SnapToTimecodeSeconds;
3448         } else if (choice == _("Timecode Minutes")) {
3449                 snaptype = SnapToTimecodeMinutes;
3450         } else if (choice == _("Seconds")) {
3451                 snaptype = SnapToSeconds;
3452         } else if (choice == _("Minutes")) {
3453                 snaptype = SnapToMinutes;
3454         }
3455
3456         RefPtr<RadioAction> ract = snap_type_action (snaptype);
3457         if (ract) {
3458                 ract->set_active ();
3459         }
3460 }
3461
3462 void
3463 Editor::snap_mode_selection_done ()
3464 {
3465         string choice = snap_mode_selector.get_active_text();
3466         SnapMode mode = SnapNormal;
3467
3468         if (choice == _("No Grid")) {
3469                 mode = SnapOff;
3470         } else if (choice == _("Grid")) {
3471                 mode = SnapNormal;
3472         } else if (choice == _("Magnetic")) {
3473                 mode = SnapMagnetic;
3474         }
3475
3476         RefPtr<RadioAction> ract = snap_mode_action (mode);
3477
3478         if (ract) {
3479                 ract->set_active (true);
3480         }
3481 }
3482
3483 void
3484 Editor::cycle_edit_point (bool with_marker)
3485 {
3486         switch (_edit_point) {
3487         case EditAtMouse:
3488                 set_edit_point_preference (EditAtPlayhead);
3489                 break;
3490         case EditAtPlayhead:
3491                 if (with_marker) {
3492                         set_edit_point_preference (EditAtSelectedMarker);
3493                 } else {
3494                         set_edit_point_preference (EditAtMouse);
3495                 }
3496                 break;
3497         case EditAtSelectedMarker:
3498                 set_edit_point_preference (EditAtMouse);
3499                 break;
3500         }
3501 }
3502
3503 void
3504 Editor::edit_point_selection_done ()
3505 {
3506         string choice = edit_point_selector.get_active_text();
3507         EditPoint ep = EditAtSelectedMarker;
3508
3509         if (choice == _("Marker")) {
3510                 set_edit_point_preference (EditAtSelectedMarker);
3511         } else if (choice == _("Playhead")) {
3512                 set_edit_point_preference (EditAtPlayhead);
3513         } else {
3514                 set_edit_point_preference (EditAtMouse);
3515         }
3516
3517         RefPtr<RadioAction> ract = edit_point_action (ep);
3518
3519         if (ract) {
3520                 ract->set_active (true);
3521         }
3522 }
3523
3524 void
3525 Editor::zoom_focus_selection_done ()
3526 {
3527         string choice = zoom_focus_selector.get_active_text();
3528         ZoomFocus focus_type = ZoomFocusLeft;
3529
3530         if (choice == _("Left")) {
3531                 focus_type = ZoomFocusLeft;
3532         } else if (choice == _("Right")) {
3533                 focus_type = ZoomFocusRight;
3534         } else if (choice == _("Center")) {
3535                 focus_type = ZoomFocusCenter;
3536         } else if (choice == _("Playhead")) {
3537                 focus_type = ZoomFocusPlayhead;
3538         } else if (choice == _("Mouse")) {
3539                 focus_type = ZoomFocusMouse;
3540         } else if (choice == _("Edit point")) {
3541                 focus_type = ZoomFocusEdit;
3542         }
3543
3544         RefPtr<RadioAction> ract = zoom_focus_action (focus_type);
3545
3546         if (ract) {
3547                 ract->set_active ();
3548         }
3549 }
3550
3551 gint
3552 Editor::edit_controls_button_release (GdkEventButton* ev)
3553 {
3554         if (Keyboard::is_context_menu_event (ev)) {
3555                 ARDOUR_UI::instance()->add_route (this);
3556         }
3557         return TRUE;
3558 }
3559
3560 gint
3561 Editor::mouse_select_button_release (GdkEventButton* ev)
3562 {
3563         /* this handles just right-clicks */
3564
3565         if (ev->button != 3) {
3566                 return false;
3567         }
3568
3569         return true;
3570 }
3571
3572 void
3573 Editor::set_zoom_focus (ZoomFocus f)
3574 {
3575         string str = zoom_focus_strings[(int)f];
3576
3577         if (str != zoom_focus_selector.get_active_text()) {
3578                 zoom_focus_selector.set_active_text (str);
3579         }
3580
3581         if (zoom_focus != f) {
3582                 zoom_focus = f;
3583
3584                 ZoomFocusChanged (); /* EMIT_SIGNAL */
3585
3586                 instant_save ();
3587         }
3588 }
3589
3590 void
3591 Editor::ensure_float (Window& win)
3592 {
3593         win.set_transient_for (*this);
3594 }
3595
3596 void
3597 Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
3598 {
3599         /* recover or initialize pane positions. do this here rather than earlier because
3600            we don't want the positions to change the child allocations, which they seem to do.
3601          */
3602
3603         int pos;
3604         XMLProperty* prop;
3605         char buf[32];
3606         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
3607         int width, height;
3608         static int32_t done;
3609         XMLNode* geometry;
3610
3611         width = default_width;
3612         height = default_height;
3613
3614         if ((geometry = find_named_node (*node, "geometry")) != 0) {
3615
3616                 if ((prop = geometry->property ("x_size")) == 0) {
3617                         prop = geometry->property ("x-size");
3618                 }
3619                 if (prop) {
3620                         width = atoi (prop->value());
3621                 }
3622                 if ((prop = geometry->property ("y_size")) == 0) {
3623                         prop = geometry->property ("y-size");
3624                 }
3625                 if (prop) {
3626                         height = atoi (prop->value());
3627                 }
3628         }
3629
3630         if (which == static_cast<Paned*> (&edit_pane)) {
3631
3632                 if (done) {
3633                         return;
3634                 }
3635
3636                 if (!geometry || (prop = geometry->property ("edit-pane-pos")) == 0) {
3637                         /* initial allocation is 90% to canvas, 10% to notebook */
3638                         pos = (int) floor (alloc.get_width() * 0.90f);
3639                         snprintf (buf, sizeof(buf), "%d", pos);
3640                 } else {
3641                         pos = atoi (prop->value());
3642                 }
3643
3644                 if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
3645                         edit_pane.set_position (pos);
3646                         pre_maximal_pane_position = pos;
3647                 }
3648         }
3649 }
3650
3651 void
3652 Editor::detach_tearoff (Box* /*b*/, Window* /*w*/)
3653 {
3654         cerr << "remove tearoff\n";
3655
3656         if (tools_tearoff->torn_off() &&
3657             mouse_mode_tearoff->torn_off()) {
3658                 top_hbox.remove (toolbar_frame);
3659         }
3660 }
3661
3662 void
3663 Editor::reattach_tearoff (Box* /*b*/, Window* /*w*/, int32_t /*n*/)
3664 {
3665         cerr << "reattach tearoff\n";
3666         if (toolbar_frame.get_parent() == 0) {
3667                 top_hbox.pack_end (toolbar_frame);
3668         }
3669 }
3670
3671 void
3672 Editor::set_show_measures (bool yn)
3673 {
3674         if (_show_measures != yn) {
3675                 hide_measures ();
3676
3677                 if ((_show_measures = yn) == true) {
3678                         if (tempo_lines)
3679                                 tempo_lines->show();
3680                         draw_measures ();
3681                 }
3682                 instant_save ();
3683         }
3684 }
3685
3686 void
3687 Editor::toggle_follow_playhead ()
3688 {
3689         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3690         if (act) {
3691                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3692                 set_follow_playhead (tact->get_active());
3693         }
3694 }
3695
3696 void
3697 Editor::set_follow_playhead (bool yn)
3698 {
3699         if (_follow_playhead != yn) {
3700                 if ((_follow_playhead = yn) == true) {
3701                         /* catch up */
3702                         update_current_screen ();
3703                 }
3704                 instant_save ();
3705         }
3706 }
3707
3708 void
3709 Editor::toggle_xfade_active (boost::weak_ptr<Crossfade> wxfade)
3710 {
3711         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3712         if (xfade) {
3713                 xfade->set_active (!xfade->active());
3714         }
3715 }
3716
3717 void
3718 Editor::toggle_xfade_length (boost::weak_ptr<Crossfade> wxfade)
3719 {
3720         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3721         if (xfade) {
3722                 xfade->set_follow_overlap (!xfade->following_overlap());
3723         }
3724 }
3725
3726 void
3727 Editor::edit_xfade (boost::weak_ptr<Crossfade> wxfade)
3728 {
3729         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3730
3731         if (!xfade) {
3732                 return;
3733         }
3734
3735         CrossfadeEditor cew (_session, xfade, xfade->fade_in().get_min_y(), 1.0);
3736
3737         ensure_float (cew);
3738
3739         switch (cew.run ()) {
3740         case RESPONSE_ACCEPT:
3741                 break;
3742         default:
3743                 return;
3744         }
3745
3746         cew.apply ();
3747         xfade->StateChanged (Change (~0));
3748 }
3749
3750 PlaylistSelector&
3751 Editor::playlist_selector () const
3752 {
3753         return *_playlist_selector;
3754 }
3755
3756 Evoral::MusicalTime
3757 Editor::get_grid_type_as_beats (bool& success, nframes64_t position)
3758 {
3759         success = true;
3760
3761         switch (_snap_type) {
3762         case SnapToBeat:
3763                 return 1.0;
3764                 break;
3765
3766         case SnapToAThirtysecondBeat:
3767                 return 1.0/32.0;
3768                 break;
3769
3770         case SnapToASixteenthBeat:
3771                 return 1.0/16.0;
3772                 break;
3773
3774         case SnapToAEighthBeat:
3775                 return 1.0/8.0;
3776                 break;
3777
3778         case SnapToAQuarterBeat:
3779                 return 1.0/4.0;
3780                 break;
3781
3782         case SnapToAThirdBeat:
3783                 return 1.0/3.0;
3784                 break;
3785
3786         case SnapToBar:
3787                 if (_session) {
3788                         return _session->tempo_map().meter_at (position).beats_per_bar();
3789                 }
3790                 break;
3791
3792         case SnapToCDFrame:
3793         case SnapToTimecodeFrame:
3794         case SnapToTimecodeSeconds:
3795         case SnapToTimecodeMinutes:
3796         case SnapToSeconds:
3797         case SnapToMinutes:
3798         case SnapToRegionStart:
3799         case SnapToRegionEnd:
3800         case SnapToRegionSync:
3801         case SnapToRegionBoundary:
3802         default:
3803                 success = false;
3804                 break;
3805         }
3806
3807         return 0.0;
3808 }
3809
3810 nframes64_t
3811 Editor::get_nudge_distance (nframes64_t pos, nframes64_t& next)
3812 {
3813         nframes64_t ret;
3814
3815         ret = nudge_clock.current_duration (pos);
3816         next = ret + 1; /* XXXX fix me */
3817
3818         return ret;
3819 }
3820
3821 void
3822 Editor::end_location_changed (Location* location)
3823 {
3824         ENSURE_GUI_THREAD (*this, &Editor::end_location_changed, location)
3825         //reset_scrolling_region ();
3826         nframes64_t session_span = location->start() + (nframes64_t) floorf (current_page_frames() * 0.10f);
3827         horizontal_adjustment.set_upper (session_span / frames_per_unit);
3828 }
3829
3830 int
3831 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
3832 {
3833         ArdourDialog dialog ("playlist deletion dialog");
3834         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
3835                                         "If left alone, no audio files used by it will be cleaned.\n"
3836                                         "If deleted, audio files used by it alone by will cleaned."),
3837                                       pl->name()));
3838
3839         dialog.set_position (WIN_POS_CENTER);
3840         dialog.get_vbox()->pack_start (label);
3841
3842         label.show ();
3843
3844         dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
3845         dialog.add_button (_("Keep playlist"), RESPONSE_REJECT);
3846         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
3847
3848         switch (dialog.run ()) {
3849         case RESPONSE_ACCEPT:
3850                 /* delete the playlist */
3851                 return 0;
3852                 break;
3853
3854         case RESPONSE_REJECT:
3855                 /* keep the playlist */
3856                 return 1;
3857                 break;
3858
3859         default:
3860                 break;
3861         }
3862
3863         return -1;
3864 }
3865
3866 bool
3867 Editor::audio_region_selection_covers (nframes64_t where)
3868 {
3869         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
3870                 if ((*a)->region()->covers (where)) {
3871                         return true;
3872                 }
3873         }
3874
3875         return false;
3876 }
3877
3878 void
3879 Editor::prepare_for_cleanup ()
3880 {
3881         cut_buffer->clear_regions ();
3882         cut_buffer->clear_playlists ();
3883
3884         selection->clear_regions ();
3885         selection->clear_playlists ();
3886
3887         _regions->suspend_redisplay ();
3888 }
3889
3890 void
3891 Editor::finish_cleanup ()
3892 {
3893         _regions->resume_redisplay ();
3894 }
3895
3896 Location*
3897 Editor::transport_loop_location()
3898 {
3899         if (_session) {
3900                 return _session->locations()->auto_loop_location();
3901         } else {
3902                 return 0;
3903         }
3904 }
3905
3906 Location*
3907 Editor::transport_punch_location()
3908 {
3909         if (_session) {
3910                 return _session->locations()->auto_punch_location();
3911         } else {
3912                 return 0;
3913         }
3914 }
3915
3916 bool
3917 Editor::control_layout_scroll (GdkEventScroll* ev)
3918 {
3919         if (Keyboard::some_magic_widget_has_focus()) {
3920                 return false;
3921         }
3922
3923         switch (ev->direction) {
3924         case GDK_SCROLL_UP:
3925                 scroll_tracks_up_line ();
3926                 return true;
3927                 break;
3928
3929         case GDK_SCROLL_DOWN:
3930                 scroll_tracks_down_line ();
3931                 return true;
3932
3933         default:
3934                 /* no left/right handling yet */
3935                 break;
3936         }
3937
3938         return false;
3939 }
3940
3941 void
3942 Editor::session_state_saved (string snap_name)
3943 {
3944         ENSURE_GUI_THREAD (*this, &Editor::session_state_saved, snap_name);
3945
3946         update_title ();
3947         _snapshots->redisplay ();
3948 }
3949
3950 void
3951 Editor::maximise_editing_space ()
3952 {
3953         mouse_mode_tearoff->set_visible (false);
3954         tools_tearoff->set_visible (false);
3955
3956         pre_maximal_pane_position = edit_pane.get_position();
3957         pre_maximal_editor_width = this->get_width();
3958
3959         if(post_maximal_pane_position == 0) {
3960                 post_maximal_pane_position = edit_pane.get_width();
3961         }
3962
3963         fullscreen();
3964
3965         if(post_maximal_editor_width) {
3966                 edit_pane.set_position (post_maximal_pane_position -
3967                         abs(post_maximal_editor_width - pre_maximal_editor_width));
3968         } else {
3969                 edit_pane.set_position (post_maximal_pane_position);
3970         }
3971 }
3972
3973 void
3974 Editor::restore_editing_space ()
3975 {
3976         // user changed width of pane during fullscreen
3977
3978         if(post_maximal_pane_position != edit_pane.get_position()) {
3979                 post_maximal_pane_position = edit_pane.get_position();
3980         }
3981
3982         unfullscreen();
3983
3984         mouse_mode_tearoff->set_visible (true);
3985         tools_tearoff->set_visible (true);
3986         post_maximal_editor_width = this->get_width();
3987
3988         edit_pane.set_position (pre_maximal_pane_position + abs(this->get_width() - pre_maximal_editor_width));
3989 }
3990
3991 /**
3992  *  Make new playlists for a given track and also any others that belong
3993  *  to the same active route group with the `edit' property.
3994  *  @param v Track.
3995  */
3996
3997 void
3998 Editor::new_playlists (TimeAxisView* v)
3999 {
4000         begin_reversible_command (_("new playlists"));
4001         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4002         _session->playlists->get (playlists);
4003         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, RouteGroup::Edit);
4004         commit_reversible_command ();
4005 }
4006
4007 /**
4008  *  Use a copy of the current playlist for a given track and also any others that belong
4009  *  to the same active route group with the `edit' property.
4010  *  @param v Track.
4011  */
4012
4013 void
4014 Editor::copy_playlists (TimeAxisView* v)
4015 {
4016         begin_reversible_command (_("copy playlists"));
4017         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4018         _session->playlists->get (playlists);
4019         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, RouteGroup::Edit);
4020         commit_reversible_command ();
4021 }
4022
4023 /** Clear the current playlist for a given track and also any others that belong
4024  *  to the same active route group with the `edit' property.
4025  *  @param v Track.
4026  */
4027
4028 void
4029 Editor::clear_playlists (TimeAxisView* v)
4030 {
4031         begin_reversible_command (_("clear playlists"));
4032         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4033         _session->playlists->get (playlists);
4034         mapover_tracks (sigc::mem_fun (*this, &Editor::mapped_clear_playlist), v, RouteGroup::Edit);
4035         commit_reversible_command ();
4036 }
4037
4038 void
4039 Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4040 {
4041         atv.use_new_playlist (sz > 1 ? false : true, playlists);
4042 }
4043
4044 void
4045 Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4046 {
4047         atv.use_copy_playlist (sz > 1 ? false : true, playlists);
4048 }
4049
4050 void
4051 Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t /*sz*/)
4052 {
4053         atv.clear_playlist ();
4054 }
4055
4056 bool
4057 Editor::on_key_press_event (GdkEventKey* ev)
4058 {
4059         return key_press_focus_accelerator_handler (*this, ev);
4060 }
4061
4062 bool
4063 Editor::on_key_release_event (GdkEventKey* ev)
4064 {
4065         return Gtk::Window::on_key_release_event (ev);
4066         // return key_press_focus_accelerator_handler (*this, ev);
4067 }
4068
4069 void
4070 Editor::reset_x_origin (nframes64_t frame)
4071 {
4072         //cerr << "resetting x origin" << endl;
4073         queue_visual_change (frame);
4074 }
4075
4076 void
4077 Editor::reset_y_origin (double y)
4078 {
4079         queue_visual_change_y (y);
4080 }
4081
4082 void
4083 Editor::reset_zoom (double fpu)
4084 {
4085         queue_visual_change (fpu);
4086 }
4087
4088 void
4089 Editor::reposition_and_zoom (nframes64_t frame, double fpu)
4090 {
4091         //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
4092         reset_x_origin (frame);
4093         reset_zoom (fpu);
4094
4095         if (!no_save_visual) {
4096                 undo_visual_stack.push_back (current_visual_state(false));
4097         }
4098 }
4099
4100 Editor::VisualState*
4101 Editor::current_visual_state (bool with_tracks)
4102 {
4103         VisualState* vs = new VisualState;
4104         vs->y_position = vertical_adjustment.get_value();
4105         vs->frames_per_unit = frames_per_unit;
4106         vs->leftmost_frame = leftmost_frame;
4107         vs->zoom_focus = zoom_focus;
4108
4109         if (with_tracks) {
4110                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4111                         vs->track_states.push_back (TAVState ((*i), &(*i)->get_state()));
4112                 }
4113         }
4114
4115         return vs;
4116 }
4117
4118 void
4119 Editor::undo_visual_state ()
4120 {
4121         if (undo_visual_stack.empty()) {
4122                 return;
4123         }
4124
4125         VisualState* vs = undo_visual_stack.back();
4126         undo_visual_stack.pop_back();
4127         use_visual_state (*vs);
4128         redo_visual_stack.push_back (vs);
4129 }
4130
4131 void
4132 Editor::redo_visual_state ()
4133 {
4134         if (redo_visual_stack.empty()) {
4135                 return;
4136         }
4137
4138         VisualState* vs = redo_visual_stack.back();
4139         redo_visual_stack.pop_back();
4140         use_visual_state (*vs);
4141         undo_visual_stack.push_back (vs);
4142 }
4143
4144 void
4145 Editor::swap_visual_state ()
4146 {
4147         if (undo_visual_stack.empty()) {
4148                 redo_visual_state ();
4149         } else {
4150                 undo_visual_state ();
4151         }
4152 }
4153
4154 void
4155 Editor::use_visual_state (VisualState& vs)
4156 {
4157         no_save_visual = true;
4158
4159         _routes->suspend_redisplay ();
4160
4161         vertical_adjustment.set_value (vs.y_position);
4162
4163         set_zoom_focus (vs.zoom_focus);
4164         reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
4165
4166         for (list<TAVState>::iterator i = vs.track_states.begin(); i != vs.track_states.end(); ++i) {
4167                 TrackViewList::iterator t;
4168
4169                 /* check if the track still exists - it could have been deleted */
4170
4171                 if ((t = find (track_views.begin(), track_views.end(), i->first)) != track_views.end()) {
4172                         (*t)->set_state (*(i->second), Stateful::loading_state_version);
4173                 }
4174         }
4175
4176
4177         if (!vs.track_states.empty()) {
4178                 _routes->update_visibility ();
4179         }
4180
4181         _routes->resume_redisplay ();
4182
4183         no_save_visual = false;
4184 }
4185
4186 void
4187 Editor::set_frames_per_unit (double fpu)
4188 {
4189         /* this is the core function that controls the zoom level of the canvas. it is called
4190            whenever one or more calls are made to reset_zoom(). it executes in an idle handler.
4191         */
4192
4193         if (fpu == frames_per_unit) {
4194                 return;
4195         }
4196
4197         if (fpu < 2.0) {
4198                 fpu = 2.0;
4199         }
4200
4201
4202         /* don't allow zooms that fit more than the maximum number
4203            of frames into an 800 pixel wide space.
4204         */
4205
4206         if (max_frames / fpu < 800.0) {
4207                 return;
4208         }
4209
4210         if (tempo_lines)
4211                 tempo_lines->tempo_map_changed();
4212
4213         frames_per_unit = fpu;
4214         post_zoom ();
4215 }
4216
4217 void
4218 Editor::post_zoom ()
4219 {
4220         nframes64_t cef = 0;
4221
4222         // convert fpu to frame count
4223
4224         nframes64_t frames = (nframes64_t) floor (frames_per_unit * _canvas_width);
4225
4226         if (frames_per_unit != zoom_range_clock.current_duration()) {
4227                 zoom_range_clock.set (frames);
4228         }
4229
4230         if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
4231                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4232                         (*i)->reshow_selection (selection->time);
4233                 }
4234         }
4235
4236         leftmost_frame = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
4237
4238         ZoomChanged (); /* EMIT_SIGNAL */
4239
4240         if (_session) {
4241                 cef = _session->current_end_frame() + (current_page_frames() / 10);// Add a little extra so we can see the end marker
4242         }
4243         horizontal_adjustment.set_upper (cef / frames_per_unit);
4244
4245         //reset_scrolling_region ();
4246
4247         if (playhead_cursor) {
4248                 playhead_cursor->set_position (playhead_cursor->current_frame);
4249         }
4250
4251         refresh_location_display();
4252         _summary->set_overlays_dirty ();
4253
4254         instant_save ();
4255 }
4256
4257 void
4258 Editor::queue_visual_change (nframes64_t where)
4259 {
4260         pending_visual_change.add (VisualChange::TimeOrigin);
4261
4262         /* if we're moving beyond the end, make sure the upper limit of the horizontal adjustment
4263            can reach.
4264         */
4265
4266         if (_session && (where > _session->current_end_frame())) {
4267                 horizontal_adjustment.set_upper ((where + current_page_frames()) / frames_per_unit);
4268         }
4269
4270         pending_visual_change.time_origin = where;
4271
4272         ensure_visual_change_idle_handler ();
4273 }
4274
4275 void
4276 Editor::queue_visual_change (double fpu)
4277 {
4278         pending_visual_change.add (VisualChange::ZoomLevel);
4279         pending_visual_change.frames_per_unit = fpu;
4280
4281         ensure_visual_change_idle_handler ();
4282 }
4283
4284 void
4285 Editor::queue_visual_change_y (double y)
4286 {
4287         pending_visual_change.add (VisualChange::YOrigin);
4288         pending_visual_change.y_origin = y;
4289
4290         ensure_visual_change_idle_handler ();
4291 }
4292
4293 void
4294 Editor::ensure_visual_change_idle_handler ()
4295 {
4296         if (pending_visual_change.idle_handler_id < 0) {
4297                 pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
4298         }
4299 }
4300
4301 int
4302 Editor::_idle_visual_changer (void* arg)
4303 {
4304         return static_cast<Editor*>(arg)->idle_visual_changer ();
4305 }
4306
4307 int
4308 Editor::idle_visual_changer ()
4309 {
4310         VisualChange::Type p = pending_visual_change.pending;
4311         pending_visual_change.pending = (VisualChange::Type) 0;
4312
4313         double last_time_origin = horizontal_adjustment.get_value();
4314
4315         if (p & VisualChange::ZoomLevel) {
4316                 set_frames_per_unit (pending_visual_change.frames_per_unit);
4317
4318                 compute_fixed_ruler_scale ();
4319                 compute_current_bbt_points(pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4320                 compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4321                 update_tempo_based_rulers ();
4322         }
4323         if (p & VisualChange::TimeOrigin) {
4324                 horizontal_adjustment.set_value (pending_visual_change.time_origin / frames_per_unit);
4325         }
4326         if (p & VisualChange::YOrigin) {
4327                 vertical_adjustment.set_value (pending_visual_change.y_origin);
4328         }
4329
4330         if (last_time_origin == horizontal_adjustment.get_value()) {
4331                 /* changed signal not emitted */
4332                 update_fixed_rulers ();
4333                 redisplay_tempo (true);
4334         }
4335
4336         _summary->set_overlays_dirty ();
4337
4338         // 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
4339         pending_visual_change.idle_handler_id = -1;
4340         return 0; /* this is always a one-shot call */
4341 }
4342
4343 struct EditorOrderTimeAxisSorter {
4344     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
4345             return a->order () < b->order ();
4346     }
4347 };
4348
4349 void
4350 Editor::sort_track_selection (TrackViewList* sel)
4351 {
4352         EditorOrderTimeAxisSorter cmp;
4353
4354         if (sel) {
4355                 sel->sort (cmp);
4356         } else {
4357                 selection->tracks.sort (cmp);
4358         }
4359 }
4360
4361 nframes64_t
4362 Editor::get_preferred_edit_position (bool ignore_playhead)
4363 {
4364         bool ignored;
4365         nframes64_t where = 0;
4366         EditPoint ep = _edit_point;
4367
4368         if (entered_marker) {
4369                 return entered_marker->position();
4370         }
4371
4372         if (ignore_playhead && ep == EditAtPlayhead) {
4373                 ep = EditAtSelectedMarker;
4374         }
4375
4376         switch (ep) {
4377         case EditAtPlayhead:
4378                 where = _session->audible_frame();
4379                 break;
4380
4381         case EditAtSelectedMarker:
4382                 if (!selection->markers.empty()) {
4383                         bool is_start;
4384                         Location* loc = find_location_from_marker (selection->markers.front(), is_start);
4385                         if (loc) {
4386                                 if (is_start) {
4387                                         where =  loc->start();
4388                                 } else {
4389                                         where = loc->end();
4390                                 }
4391                                 break;
4392                         }
4393                 }
4394                 /* fallthru */
4395
4396         default:
4397         case EditAtMouse:
4398                 if (!mouse_frame (where, ignored)) {
4399                         /* XXX not right but what can we do ? */
4400                         return 0;
4401                 }
4402                 snap_to (where);
4403                 break;
4404         }
4405
4406         return where;
4407 }
4408
4409 void
4410 Editor::set_loop_range (nframes64_t start, nframes64_t end, string cmd)
4411 {
4412         if (!_session) return;
4413
4414         begin_reversible_command (cmd);
4415
4416         Location* tll;
4417
4418         if ((tll = transport_loop_location()) == 0) {
4419                 Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoLoop);
4420                 XMLNode &before = _session->locations()->get_state();
4421                 _session->locations()->add (loc, true);
4422                 _session->set_auto_loop_location (loc);
4423                 XMLNode &after = _session->locations()->get_state();
4424                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4425         } else {
4426                 XMLNode &before = tll->get_state();
4427                 tll->set_hidden (false, this);
4428                 tll->set (start, end);
4429                 XMLNode &after = tll->get_state();
4430                 _session->add_command (new MementoCommand<Location>(*tll, &before, &after));
4431         }
4432
4433         commit_reversible_command ();
4434 }
4435
4436 void
4437 Editor::set_punch_range (nframes64_t start, nframes64_t end, string cmd)
4438 {
4439         if (!_session) return;
4440
4441         begin_reversible_command (cmd);
4442
4443         Location* tpl;
4444
4445         if ((tpl = transport_punch_location()) == 0) {
4446                 Location* loc = new Location (start, end, _("Loop"),  Location::IsAutoPunch);
4447                 XMLNode &before = _session->locations()->get_state();
4448                 _session->locations()->add (loc, true);
4449                 _session->set_auto_loop_location (loc);
4450                 XMLNode &after = _session->locations()->get_state();
4451                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4452         }
4453         else {
4454                 XMLNode &before = tpl->get_state();
4455                 tpl->set_hidden (false, this);
4456                 tpl->set (start, end);
4457                 XMLNode &after = tpl->get_state();
4458                 _session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
4459         }
4460
4461         commit_reversible_command ();
4462 }
4463
4464 /** Find regions which exist at a given time, and optionally on a given list of tracks.
4465  *  @param rs List to which found regions are added.
4466  *  @param where Time to look at.
4467  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
4468  */
4469 void
4470 Editor::get_regions_at (RegionSelection& rs, nframes64_t where, const TrackViewList& ts) const
4471 {
4472         const TrackViewList* tracks;
4473
4474         if (ts.empty()) {
4475                 tracks = &track_views;
4476         } else {
4477                 tracks = &ts;
4478         }
4479
4480         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4481                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4482                 if (rtv) {
4483                         boost::shared_ptr<Diskstream> ds;
4484                         boost::shared_ptr<Playlist> pl;
4485
4486                         if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
4487
4488                                 Playlist::RegionList* regions = pl->regions_at (
4489                                                 (nframes64_t) floor ( (double)where * ds->speed()));
4490
4491                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4492                                         RegionView* rv = rtv->view()->find_view (*i);
4493                                         if (rv) {
4494                                                 rs.add (rv);
4495                                         }
4496                                 }
4497
4498                                 delete regions;
4499                         }
4500                 }
4501         }
4502 }
4503
4504 void
4505 Editor::get_regions_after (RegionSelection& rs, nframes64_t where, const TrackViewList& ts) const
4506 {
4507         const TrackViewList* tracks;
4508
4509         if (ts.empty()) {
4510                 tracks = &track_views;
4511         } else {
4512                 tracks = &ts;
4513         }
4514
4515         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4516                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4517                 if (rtv) {
4518                         boost::shared_ptr<Diskstream> ds;
4519                         boost::shared_ptr<Playlist> pl;
4520
4521                         if ((ds = rtv->get_diskstream()) && ((pl = ds->playlist()))) {
4522
4523                                 Playlist::RegionList* regions = pl->regions_touched (
4524                                                 (nframes64_t) floor ( (double)where * ds->speed()), max_frames);
4525
4526                                 for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4527
4528                                         RegionView* rv = rtv->view()->find_view (*i);
4529
4530                                         if (rv) {
4531                                                 rs.push_back (rv);
4532                                         }
4533                                 }
4534
4535                                 delete regions;
4536                         }
4537                 }
4538         }
4539 }
4540
4541 /** Find all regions which are either:
4542  *      - selected or
4543  *      - the entered_regionview (if allow_entered == true) or
4544  *      - under the preferred edit position AND on a selected track, or on a track
4545  *        which is in the same active edit-enable route group as a selected region (if allow_edit_position == true)
4546  *  @param rs Returned region list.
4547  *  @param allow_entered true to include the entered_regionview in the list.
4548  */
4549 void
4550 Editor::get_regions_for_action (RegionSelection& rs, bool allow_entered, bool allow_edit_position)
4551 {
4552         /* Start with selected regions */
4553         rs = selection->regions;
4554
4555         /* Add the entered_regionview, if requested */
4556         if (allow_entered && entered_regionview) {
4557                 rs.add (entered_regionview);
4558         }
4559
4560         if (allow_edit_position) {
4561
4562                 TrackViewList tracks = selection->tracks;
4563
4564                 /* tracks is currently the set of selected tracks; add any other tracks that
4565                  * have regions that are in the same edit-activated route group as one of
4566                  * our regions */
4567                 for (RegionSelection::iterator i = rs.begin (); i != rs.end(); ++i) {
4568
4569                         RouteGroup* g = (*i)->get_time_axis_view().route_group ();
4570                         if (g && g->active_property (RouteGroup::Edit)) {
4571                                 tracks.add (axis_views_from_routes (g->route_list()));
4572                         }
4573
4574                 }
4575
4576                 if (!tracks.empty()) {
4577                         /* now find regions that are at the edit position on those tracks */
4578                         nframes64_t const where = get_preferred_edit_position ();
4579                         get_regions_at (rs, where, tracks);
4580                 }
4581         }
4582 }
4583
4584 void
4585 Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
4586 {
4587         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4588
4589                 RouteTimeAxisView* tatv;
4590
4591                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4592
4593                         boost::shared_ptr<Playlist> pl;
4594                         vector<boost::shared_ptr<Region> > results;
4595                         RegionView* marv;
4596                         boost::shared_ptr<Diskstream> ds;
4597
4598                         if ((ds = tatv->get_diskstream()) == 0) {
4599                                 /* bus */
4600                                 continue;
4601                         }
4602
4603                         if ((pl = (ds->playlist())) != 0) {
4604                                 pl->get_region_list_equivalent_regions (region, results);
4605                         }
4606
4607                         for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
4608                                 if ((marv = tatv->view()->find_view (*ir)) != 0) {
4609                                         regions.push_back (marv);
4610                                 }
4611                         }
4612
4613                 }
4614         }
4615 }
4616
4617 void
4618 Editor::show_rhythm_ferret ()
4619 {
4620         if (rhythm_ferret == 0) {
4621                 rhythm_ferret = new RhythmFerret(*this);
4622         }
4623
4624         rhythm_ferret->set_session (_session);
4625         rhythm_ferret->show ();
4626         rhythm_ferret->present ();
4627 }
4628
4629 void
4630 Editor::show_global_port_matrix (ARDOUR::DataType t)
4631 {
4632         if (_global_port_matrix[t] == 0) {
4633                 _global_port_matrix[t] = new GlobalPortMatrixWindow (_session, t);
4634         }
4635
4636         _global_port_matrix[t]->show ();
4637 }
4638
4639 void
4640 Editor::first_idle ()
4641 {
4642         MessageDialog* dialog = 0;
4643
4644         if (track_views.size() > 1) {
4645                 dialog = new MessageDialog (*this,
4646                                             _("Please wait while Ardour loads visual data"),
4647                                             true,
4648                                             Gtk::MESSAGE_INFO,
4649                                             Gtk::BUTTONS_NONE);
4650                 dialog->present ();
4651                 ARDOUR_UI::instance()->flush_pending ();
4652         }
4653
4654         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
4655                 (*t)->first_idle();
4656         }
4657
4658         // first idle adds route children (automation tracks), so we need to redisplay here
4659         _routes->redisplay ();
4660
4661         delete dialog;
4662
4663         _have_idled = true;
4664 }
4665
4666 static gboolean
4667 _idle_resizer (gpointer arg)
4668 {
4669         return ((Editor*)arg)->idle_resize ();
4670 }
4671
4672 void
4673 Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
4674 {
4675         if (resize_idle_id < 0) {
4676                 resize_idle_id = g_idle_add (_idle_resizer, this);
4677                 _pending_resize_amount = 0;
4678         }
4679
4680         /* make a note of the smallest resulting height, so that we can clamp the
4681            lower limit at TimeAxisView::hSmall */
4682
4683         int32_t min_resulting = INT32_MAX;
4684
4685         _pending_resize_amount += h;
4686         _pending_resize_view = view;
4687
4688         min_resulting = min (min_resulting, int32_t (_pending_resize_view->current_height()) + _pending_resize_amount);
4689
4690         if (selection->tracks.contains (_pending_resize_view)) {
4691                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4692                         min_resulting = min (min_resulting, int32_t ((*i)->current_height()) + _pending_resize_amount);
4693                 }
4694         }
4695
4696         if (min_resulting < 0) {
4697                 min_resulting = 0;
4698         }
4699
4700         /* clamp */
4701         if (uint32_t (min_resulting) < TimeAxisView::hSmall) {
4702                 _pending_resize_amount += TimeAxisView::hSmall - min_resulting;
4703         }
4704 }
4705
4706 /** Handle pending resizing of tracks */
4707 bool
4708 Editor::idle_resize ()
4709 {
4710         _pending_resize_view->idle_resize (_pending_resize_view->current_height() + _pending_resize_amount);
4711
4712         if (dynamic_cast<AutomationTimeAxisView*> (_pending_resize_view) == 0 &&
4713             selection->tracks.contains (_pending_resize_view)) {
4714
4715                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4716                         if (*i != _pending_resize_view) {
4717                                 (*i)->idle_resize ((*i)->current_height() + _pending_resize_amount);
4718                         }
4719                 }
4720         }
4721
4722         flush_canvas ();
4723         _group_tabs->set_dirty ();
4724         resize_idle_id = -1;
4725
4726         return false;
4727 }
4728
4729 void
4730 Editor::located ()
4731 {
4732         ENSURE_GUI_THREAD (*this, &Editor::located);
4733
4734         _pending_locate_request = false;
4735 }
4736
4737 void
4738 Editor::region_view_added (RegionView *)
4739 {
4740         _summary->set_dirty ();
4741 }
4742
4743 void
4744 Editor::streamview_height_changed ()
4745 {
4746         _summary->set_dirty ();
4747 }
4748
4749 TimeAxisView*
4750 Editor::axis_view_from_route (boost::shared_ptr<Route> r) const
4751 {
4752         TrackViewList::const_iterator j = track_views.begin ();
4753         while (j != track_views.end()) {
4754                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*j);
4755                 if (rtv && rtv->route() == r) {
4756                         return rtv;
4757                 }
4758                 ++j;
4759         }
4760
4761         return 0;
4762 }
4763
4764
4765 TrackViewList
4766 Editor::axis_views_from_routes (boost::shared_ptr<RouteList> r) const
4767 {
4768         TrackViewList t;
4769
4770         for (RouteList::const_iterator i = r->begin(); i != r->end(); ++i) {
4771                 TimeAxisView* tv = axis_view_from_route (*i);
4772                 if (tv) {
4773                         t.push_back (tv);
4774                 }
4775         }
4776
4777         return t;
4778 }
4779
4780
4781 void
4782 Editor::handle_new_route (RouteList& routes)
4783 {
4784         ENSURE_GUI_THREAD (*this, &Editor::handle_new_route, routes)
4785
4786         RouteTimeAxisView *rtv;
4787         list<RouteTimeAxisView*> new_views;
4788
4789         for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
4790                 boost::shared_ptr<Route> route = (*x);
4791
4792                 if (route->is_hidden()) {
4793                         continue;
4794                 }
4795
4796                 DataType dt = route->input()->default_type();
4797
4798                 if (dt == ARDOUR::DataType::AUDIO) {
4799                         rtv = new AudioTimeAxisView (*this, _session, route, *track_canvas);
4800                 } else if (dt == ARDOUR::DataType::MIDI) {
4801                         rtv = new MidiTimeAxisView (*this, _session, route, *track_canvas);
4802                 } else {
4803                         throw unknown_type();
4804                 }
4805
4806                 new_views.push_back (rtv);
4807                 track_views.push_back (rtv);
4808
4809                 rtv->effective_gain_display ();
4810
4811                 rtv->view()->RegionViewAdded.connect (sigc::mem_fun (*this, &Editor::region_view_added));
4812                 rtv->view()->HeightChanged.connect (sigc::mem_fun (*this, &Editor::streamview_height_changed));
4813         }
4814
4815         _routes->routes_added (new_views);
4816
4817         if (show_editor_mixer_when_tracks_arrive) {
4818                 show_editor_mixer (true);
4819         }
4820
4821         editor_list_button.set_sensitive (true);
4822
4823         _summary->set_dirty ();
4824 }
4825
4826 void
4827 Editor::timeaxisview_deleted (TimeAxisView *tv)
4828 {
4829         if (_session && _session->deletion_in_progress()) {
4830                 /* the situation is under control */
4831                 return;
4832         }
4833
4834         ENSURE_GUI_THREAD (*this, &Editor::timeaxisview_deleted, tv);
4835
4836
4837         _routes->route_removed (tv);
4838
4839         if (tv == entered_track) {
4840                 entered_track = 0;
4841         }
4842
4843         /* remove it from the list of track views */
4844
4845         TrackViewList::iterator i;
4846
4847         if ((i = find (track_views.begin(), track_views.end(), tv)) != track_views.end()) {
4848                 i = track_views.erase (i);
4849         }
4850
4851         /* update whatever the current mixer strip is displaying, if revelant */
4852
4853         boost::shared_ptr<Route> route;
4854         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (tv);
4855
4856         if (rtav) {
4857                 route = rtav->route ();
4858         }
4859
4860         if (current_mixer_strip && current_mixer_strip->route() == route) {
4861
4862                 TimeAxisView* next_tv;
4863
4864                 if (track_views.empty()) {
4865                         next_tv = 0;
4866                 } else if (i == track_views.end()) {
4867                         next_tv = track_views.front();
4868                 } else {
4869                         next_tv = (*i);
4870                 }
4871
4872
4873                 if (next_tv) {
4874                         set_selected_mixer_strip (*next_tv);
4875                 } else {
4876                         /* make the editor mixer strip go away setting the
4877                          * button to inactive (which also unticks the menu option)
4878                          */
4879
4880                         ActionManager::uncheck_toggleaction ("<Actions>/Editor/show-editor-mixer");
4881                 }
4882         }
4883 }
4884
4885 void
4886 Editor::hide_track_in_display (TimeAxisView& tv, bool /*temponly*/)
4887 {
4888         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (&tv);
4889
4890         if (rtv && current_mixer_strip && (rtv->route() == current_mixer_strip->route())) {
4891                 // this will hide the mixer strip
4892                 set_selected_mixer_strip (tv);
4893         }
4894
4895         _routes->hide_track_in_display (tv);
4896 }
4897
4898 bool
4899 Editor::sync_track_view_list_and_routes ()
4900 {
4901         track_views = TrackViewList (_routes->views ());
4902
4903         _summary->set_dirty ();
4904         _group_tabs->set_dirty ();
4905
4906         return false; // do not call again (until needed)
4907 }
4908
4909 void
4910 Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
4911 {
4912         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4913                 theslot (**i);
4914         }
4915 }
4916
4917 RouteTimeAxisView*
4918 Editor::get_route_view_by_id (PBD::ID& id)
4919 {
4920         RouteTimeAxisView* v;
4921
4922         for(TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4923                 if((v = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
4924                         if(v->route()->id() == id) {
4925                                 return v;
4926                         }
4927                 }
4928         }
4929
4930         return 0;
4931 }
4932
4933 void
4934 Editor::fit_route_group (RouteGroup *g)
4935 {
4936         TrackViewList ts = axis_views_from_routes (g->route_list ());
4937         fit_tracks (ts);
4938 }
4939
4940 void
4941 Editor::consider_auditioning (boost::shared_ptr<Region> region)
4942 {
4943         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
4944
4945         if (r == 0) {
4946                 _session->cancel_audition ();
4947                 return;
4948         }
4949
4950         if (_session->is_auditioning()) {
4951                 _session->cancel_audition ();
4952                 if (r == last_audition_region) {
4953                         return;
4954                 }
4955         }
4956
4957         _session->audition_region (r);
4958         last_audition_region = r;
4959 }
4960
4961
4962 void
4963 Editor::hide_a_region (boost::shared_ptr<Region> r)
4964 {
4965         r->set_hidden (true);
4966 }
4967
4968 void
4969 Editor::remove_a_region (boost::shared_ptr<Region> r)
4970 {
4971         _session->remove_region_from_region_list (r);
4972 }
4973
4974 void
4975 Editor::audition_region_from_region_list ()
4976 {
4977         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::consider_auditioning));
4978 }
4979
4980 void
4981 Editor::hide_region_from_region_list ()
4982 {
4983         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::hide_a_region));
4984 }
4985
4986 void
4987 Editor::start_step_editing ()
4988 {
4989         step_edit_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::check_step_edit), 20);
4990 }
4991
4992 void
4993 Editor::stop_step_editing ()
4994 {
4995         step_edit_connection.disconnect ();
4996 }
4997
4998 bool
4999 Editor::check_step_edit ()
5000 {
5001         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5002                 MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (*i);
5003                 if (mtv) {
5004                         mtv->check_step_edit ();
5005                 }
5006         }
5007
5008         return true; // do it again, till we stop
5009 }
5010
5011 void
5012 Editor::horizontal_scroll_left ()
5013 {
5014         double x = leftmost_position() - current_page_frames() / 5;
5015         if (x < 0) {
5016                 x = 0;
5017         }
5018
5019         reset_x_origin (x);
5020 }
5021
5022 void
5023 Editor::horizontal_scroll_right ()
5024 {
5025         reset_x_origin (leftmost_position() + current_page_frames() / 5);
5026 }