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 #include <stdint.h>
  23 #include <unistd.h>
  24 #include <cstdlib>
  25 #include <cmath>
  26 #include <string>
  27 #include <algorithm>
  28 #include <map>
  29
  30 #include "ardour_ui.h"
  31 /*
  32  * ardour_ui.h include was moved to the top of the list
  33  * due to a conflicting definition of 'Style' between
  34  * Apple's MacTypes.h and BarController.
  35  */
  36
  37 #include <boost/none.hpp>
  38
  39 #include <sigc++/bind.h>
  40
  41 #include "pbd/convert.h"
  42 #include "pbd/error.h"
  43 #include "pbd/enumwriter.h"
  44 #include "pbd/memento_command.h"
  45 #include "pbd/unknown_type.h"
  46 #include "pbd/unwind.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/bindings.h"
  54 #include "gtkmm2ext/grouped_buttons.h"
  55 #include "gtkmm2ext/gtk_ui.h"
  56 #include "gtkmm2ext/tearoff.h"
  57 #include "gtkmm2ext/utils.h"
  58 #include "gtkmm2ext/window_title.h"
  59 #include "gtkmm2ext/choice.h"
  60 #include "gtkmm2ext/cell_renderer_pixbuf_toggle.h"
  61
  62 #include "ardour/audio_track.h"
  63 #include "ardour/audioengine.h"
  64 #include "ardour/audioregion.h"
  65 #include "ardour/location.h"
  66 #include "ardour/profile.h"
  67 #include "ardour/route_group.h"
  68 #include "ardour/session_playlists.h"
  69 #include "ardour/tempo.h"
  70 #include "ardour/utils.h"
  71
  72 #include "control_protocol/control_protocol.h"
  73
  74 #include "actions.h"
  75 #include "actions.h"
  76 #include "analysis_window.h"
  77 #include "audio_clock.h"
  78 #include "audio_region_view.h"
  79 #include "audio_streamview.h"
  80 #include "audio_time_axis.h"
  81 #include "automation_time_axis.h"
  82 #include "bundle_manager.h"
  83 #include "button_joiner.h"
  84 #include "canvas-noevent-text.h"
  85 #include "canvas_impl.h"
  86 #include "crossfade_edit.h"
  87 #include "debug.h"
  88 #include "editing.h"
  89 #include "editor.h"
  90 #include "editor_cursors.h"
  91 #include "editor_drag.h"
  92 #include "editor_group_tabs.h"
  93 #include "editor_locations.h"
  94 #include "editor_regions.h"
  95 #include "editor_route_groups.h"
  96 #include "editor_routes.h"
  97 #include "editor_snapshots.h"
  98 #include "editor_summary.h"
  99 #include "global_port_matrix.h"
 100 #include "gui_object.h"
 101 #include "gui_thread.h"
 102 #include "keyboard.h"
 103 #include "marker.h"
 104 #include "midi_time_axis.h"
 105 #include "mixer_strip.h"
 106 #include "mixer_ui.h"
 107 #include "mouse_cursors.h"
 108 #include "playlist_selector.h"
 109 #include "public_editor.h"
 110 #include "region_layering_order_editor.h"
 111 #include "rgb_macros.h"
 112 #include "rhythm_ferret.h"
 113 #include "selection.h"
 114 #include "sfdb_ui.h"
 115 #include "simpleline.h"
 116 #include "tempo_lines.h"
 117 #include "time_axis_view.h"
 118 #include "utils.h"
 119
 120 #include "i18n.h"
 121
 122 #ifdef WITH_CMT
 123 #include "imageframe_socket_handler.h"
 124 #endif
 125
 126 using namespace std;
 127 using namespace ARDOUR;
 128 using namespace PBD;
 129 using namespace Gtk;
 130 using namespace Glib;
 131 using namespace Gtkmm2ext;
 132 using namespace Editing;
 133
 134 using PBD::internationalize;
 135 using PBD::atoi;
 136 using Gtkmm2ext::Keyboard;
 137
 138 const double Editor::timebar_height = 15.0;
 139
 140 static const gchar *_snap_type_strings[] = {
 141         N_("CD Frames"),
 142         N_("Timecode Frames"),
 143         N_("Timecode Seconds"),
 144         N_("Timecode Minutes"),
 145         N_("Seconds"),
 146         N_("Minutes"),
 147         N_("Beats/128"),
 148         N_("Beats/64"),
 149         N_("Beats/32"),
 150         N_("Beats/28"),
 151         N_("Beats/24"),
 152         N_("Beats/20"),
 153         N_("Beats/16"),
 154         N_("Beats/14"),
 155         N_("Beats/12"),
 156         N_("Beats/10"),
 157         N_("Beats/8"),
 158         N_("Beats/7"),
 159         N_("Beats/6"),
 160         N_("Beats/5"),
 161         N_("Beats/4"),
 162         N_("Beats/3"),
 163         N_("Beats/2"),
 164         N_("Beats"),
 165         N_("Bars"),
 166         N_("Marks"),
 167         N_("Region starts"),
 168         N_("Region ends"),
 169         N_("Region syncs"),
 170         N_("Region bounds"),
 171         0
 172 };
 173
 174 static const gchar *_snap_mode_strings[] = {
 175         N_("No Grid"),
 176         N_("Grid"),
 177         N_("Magnetic"),
 178         0
 179 };
 180
 181 static const gchar *_edit_point_strings[] = {
 182         N_("Playhead"),
 183         N_("Marker"),
 184         N_("Mouse"),
 185         0
 186 };
 187
 188 static const gchar *_zoom_focus_strings[] = {
 189         N_("Left"),
 190         N_("Right"),
 191         N_("Center"),
 192         N_("Playhead"),
 193         N_("Mouse"),
 194         N_("Edit point"),
 195         0
 196 };
 197
 198 #ifdef USE_RUBBERBAND
 199 static const gchar *_rb_opt_strings[] = {
 200         N_("Mushy"),
 201         N_("Smooth"),
 202         N_("Balanced multitimbral mixture"),
 203         N_("Unpitched percussion with stable notes"),
 204         N_("Crisp monophonic instrumental"),
 205         N_("Unpitched solo percussion"),
 206         N_("Resample without preserving pitch"),
 207         0
 208 };
 209 #endif
 210
 211 static void
 212 pane_size_watcher (Paned* pane)
 213 {
 214         /* if the handle of a pane vanishes into (at least) the tabs of a notebook,
 215            it is:
 216
 217               X: hard to access
 218               Quartz: impossible to access
 219
 220            so stop that by preventing it from ever getting too narrow. 35
 221            pixels is basically a rough guess at the tab width.
 222
 223            ugh.
 224         */
 225
 226         int max_width_of_lhs = GTK_WIDGET(pane->gobj())->allocation.width - 35;
 227
 228         gint pos = pane->get_position ();
 229
 230         if (pos > max_width_of_lhs) {
 231                 pane->set_position (max_width_of_lhs);
 232         }
 233 }
 234
 235 Editor::Editor ()
 236         : _join_object_range_state (JOIN_OBJECT_RANGE_NONE)
 237
 238           /* time display buttons */
 239         , minsec_label (_("Mins:Secs"))
 240         , bbt_label (_("Bars:Beats"))
 241         , timecode_label (_("Timecode"))
 242         , samples_label (_("Samples"))
 243         , tempo_label (_("Tempo"))
 244         , meter_label (_("Meter"))
 245         , mark_label (_("Location Markers"))
 246         , range_mark_label (_("Range Markers"))
 247         , transport_mark_label (_("Loop/Punch Ranges"))
 248         , cd_mark_label (_("CD Markers"))
 249         , edit_packer (4, 4, true)
 250
 251           /* the values here don't matter: layout widgets
 252              reset them as needed.
 253           */
 254
 255         , vertical_adjustment (0.0, 0.0, 10.0, 400.0)
 256
 257           /* tool bar related */
 258
 259         , zoom_range_clock (new AudioClock (X_("zoomrange"), false, X_("zoom range"), true, false, true))
 260
 261         , toolbar_selection_clock_table (2,3)
 262
 263         , automation_mode_button (_("mode"))
 264
 265         , _toolbar_viewport (*manage (new Gtk::Adjustment (0, 0, 1e10)), *manage (new Gtk::Adjustment (0, 0, 1e10)))
 266
 267 #ifdef WITH_CMT
 268         , image_socket_listener(0)
 269 #endif
 270
 271           /* nudge */
 272
 273         , nudge_clock (new AudioClock (X_("nudge"), false, X_("nudge"), true, false, true))
 274         , meters_running(false)
 275         , _pending_locate_request (false)
 276         , _pending_initial_locate (false)
 277         , _last_cut_copy_source_track (0)
 278
 279         , _region_selection_change_updates_region_list (true)
 280         , _following_mixer_selection (false)
 281         , _control_point_toggled_on_press (false)
 282         , _stepping_axis_view (0)
 283 {
 284         constructed = false;
 285
 286         /* we are a singleton */
 287
 288         PublicEditor::_instance = this;
 289
 290         _have_idled = false;
 291
 292         selection = new Selection (this);
 293         cut_buffer = new Selection (this);
 294
 295         clicked_regionview = 0;
 296         clicked_axisview = 0;
 297         clicked_routeview = 0;
 298         clicked_control_point = 0;
 299         last_update_frame = 0;
 300         pre_press_cursor = 0;
 301         _drags = new DragManager (this);
 302         current_mixer_strip = 0;
 303         tempo_lines = 0;
 304
 305         snap_type_strings =  I18N (_snap_type_strings);
 306         snap_mode_strings =  I18N (_snap_mode_strings);
 307         zoom_focus_strings = I18N (_zoom_focus_strings);
 308         edit_point_strings = I18N (_edit_point_strings);
 309 #ifdef USE_RUBBERBAND
 310         rb_opt_strings = I18N (_rb_opt_strings);
 311         rb_current_opt = 4;
 312 #endif
 313
 314         snap_threshold = 5.0;
 315         bbt_beat_subdivision = 4;
 316         _canvas_width = 0;
 317         _canvas_height = 0;
 318         last_autoscroll_x = 0;
 319         last_autoscroll_y = 0;
 320         autoscroll_active = false;
 321         autoscroll_timeout_tag = -1;
 322         logo_item = 0;
 323
 324         analysis_window = 0;
 325
 326         current_interthread_info = 0;
 327         _show_measures = true;
 328         _maximised = false;
 329         show_gain_after_trim = false;
 330
 331         have_pending_keyboard_selection = false;
 332         _follow_playhead = true;
 333         _stationary_playhead = false;
 334         editor_ruler_menu = 0;
 335         no_ruler_shown_update = false;
 336         marker_menu = 0;
 337         range_marker_menu = 0;
 338         marker_menu_item = 0;
 339         tempo_or_meter_marker_menu = 0;
 340         transport_marker_menu = 0;
 341         new_transport_marker_menu = 0;
 342         editor_mixer_strip_width = Wide;
 343         show_editor_mixer_when_tracks_arrive = false;
 344         region_edit_menu_split_multichannel_item = 0;
 345         region_edit_menu_split_item = 0;
 346         temp_location = 0;
 347         leftmost_frame = 0;
 348         current_stepping_trackview = 0;
 349         entered_track = 0;
 350         entered_regionview = 0;
 351         entered_marker = 0;
 352         clear_entered_track = false;
 353         current_timefx = 0;
 354         playhead_cursor = 0;
 355         button_release_can_deselect = true;
 356         _dragging_playhead = false;
 357         _dragging_edit_point = false;
 358         select_new_marker = false;
 359         rhythm_ferret = 0;
 360         layering_order_editor = 0;
 361         no_save_visual = false;
 362         resize_idle_id = -1;
 363         within_track_canvas = false;
 364
 365         scrubbing_direction = 0;
 366
 367         sfbrowser = 0;
 368
 369         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 370         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 371         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 372         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 373         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 374
 375         _edit_point = EditAtMouse;
 376         _internal_editing = false;
 377         current_canvas_cursor = 0;
 378
 379         frames_per_unit = 2048; /* too early to use reset_zoom () */
 380
 381         _scroll_callbacks = 0;
 382
 383         zoom_focus = ZoomFocusLeft;
 384         set_zoom_focus (ZoomFocusLeft);
 385         zoom_range_clock->ValueChanged.connect (sigc::mem_fun(*this, &Editor::zoom_adjustment_changed));
 386
 387         bbt_label.set_name ("EditorTimeButton");
 388         bbt_label.set_size_request (-1, (int)timebar_height);
 389         bbt_label.set_alignment (1.0, 0.5);
 390         bbt_label.set_padding (5,0);
 391         bbt_label.hide ();
 392         bbt_label.set_no_show_all();
 393         minsec_label.set_name ("EditorTimeButton");
 394         minsec_label.set_size_request (-1, (int)timebar_height);
 395         minsec_label.set_alignment (1.0, 0.5);
 396         minsec_label.set_padding (5,0);
 397         minsec_label.hide ();
 398         minsec_label.set_no_show_all();
 399         timecode_label.set_name ("EditorTimeButton");
 400         timecode_label.set_size_request (-1, (int)timebar_height);
 401         timecode_label.set_alignment (1.0, 0.5);
 402         timecode_label.set_padding (5,0);
 403         timecode_label.hide ();
 404         timecode_label.set_no_show_all();
 405         samples_label.set_name ("EditorTimeButton");
 406         samples_label.set_size_request (-1, (int)timebar_height);
 407         samples_label.set_alignment (1.0, 0.5);
 408         samples_label.set_padding (5,0);
 409         samples_label.hide ();
 410         samples_label.set_no_show_all();
 411
 412         tempo_label.set_name ("EditorTimeButton");
 413         tempo_label.set_size_request (-1, (int)timebar_height);
 414         tempo_label.set_alignment (1.0, 0.5);
 415         tempo_label.set_padding (5,0);
 416         tempo_label.hide();
 417         tempo_label.set_no_show_all();
 418
 419         meter_label.set_name ("EditorTimeButton");
 420         meter_label.set_size_request (-1, (int)timebar_height);
 421         meter_label.set_alignment (1.0, 0.5);
 422         meter_label.set_padding (5,0);
 423         meter_label.hide();
 424         meter_label.set_no_show_all();
 425
 426         mark_label.set_name ("EditorTimeButton");
 427         mark_label.set_size_request (-1, (int)timebar_height);
 428         mark_label.set_alignment (1.0, 0.5);
 429         mark_label.set_padding (5,0);
 430         mark_label.hide();
 431         mark_label.set_no_show_all();
 432
 433         cd_mark_label.set_name ("EditorTimeButton");
 434         cd_mark_label.set_size_request (-1, (int)timebar_height);
 435         cd_mark_label.set_alignment (1.0, 0.5);
 436         cd_mark_label.set_padding (5,0);
 437         cd_mark_label.hide();
 438         cd_mark_label.set_no_show_all();
 439
 440         range_mark_label.set_name ("EditorTimeButton");
 441         range_mark_label.set_size_request (-1, (int)timebar_height);
 442         range_mark_label.set_alignment (1.0, 0.5);
 443         range_mark_label.set_padding (5,0);
 444         range_mark_label.hide();
 445         range_mark_label.set_no_show_all();
 446
 447         transport_mark_label.set_name ("EditorTimeButton");
 448         transport_mark_label.set_size_request (-1, (int)timebar_height);
 449         transport_mark_label.set_alignment (1.0, 0.5);
 450         transport_mark_label.set_padding (5,0);
 451         transport_mark_label.hide();
 452         transport_mark_label.set_no_show_all();
 453
 454         initialize_rulers ();
 455         initialize_canvas ();
 456
 457         _summary = new EditorSummary (this);
 458
 459         selection->TimeChanged.connect (sigc::mem_fun(*this, &Editor::time_selection_changed));
 460         selection->TracksChanged.connect (sigc::mem_fun(*this, &Editor::track_selection_changed));
 461
 462         editor_regions_selection_changed_connection = selection->RegionsChanged.connect (sigc::mem_fun(*this, &Editor::region_selection_changed));
 463
 464         selection->PointsChanged.connect (sigc::mem_fun(*this, &Editor::point_selection_changed));
 465         selection->MarkersChanged.connect (sigc::mem_fun(*this, &Editor::marker_selection_changed));
 466
 467         edit_controls_vbox.set_spacing (0);
 468         vertical_adjustment.signal_value_changed().connect (sigc::mem_fun(*this, &Editor::tie_vertical_scrolling), true);
 469         track_canvas->signal_map_event().connect (sigc::mem_fun (*this, &Editor::track_canvas_map_handler));
 470
 471         HBox* h = manage (new HBox);
 472         _group_tabs = new EditorGroupTabs (this);
 473         h->pack_start (*_group_tabs, PACK_SHRINK);
 474         h->pack_start (edit_controls_vbox);
 475         controls_layout.add (*h);
 476
 477         controls_layout.set_name ("EditControlsBase");
 478         controls_layout.add_events (Gdk::SCROLL_MASK);
 479         controls_layout.signal_scroll_event().connect (sigc::mem_fun(*this, &Editor::control_layout_scroll), false);
 480
 481         controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
 482         controls_layout.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::edit_controls_button_release));
 483
 484         _cursors = new MouseCursors;
 485
 486         ArdourCanvas::Canvas* time_pad = manage(new ArdourCanvas::Canvas());
 487         ArdourCanvas::SimpleLine* pad_line_1 = manage(new ArdourCanvas::SimpleLine(*time_pad->root(),
 488                         0.0, 1.0, 100.0, 1.0));
 489
 490         pad_line_1->property_color_rgba() = 0xFF0000FF;
 491         pad_line_1->show();
 492
 493         time_pad->show();
 494
 495         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars) + 2);
 496         time_canvas_vbox.set_size_request (-1, -1);
 497
 498         ruler_label_event_box.add (ruler_label_vbox);
 499         ruler_label_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 500         ruler_label_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 501
 502         time_button_event_box.add (time_button_vbox);
 503         time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 504         time_button_event_box.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::ruler_label_button_release));
 505
 506         /* these enable us to have a dedicated window (for cursor setting, etc.)
 507            for the canvas areas.
 508         */
 509
 510         track_canvas_event_box.add (*track_canvas);
 511
 512         time_canvas_event_box.add (time_canvas_vbox);
 513         time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 514
 515         edit_packer.set_col_spacings (0);
 516         edit_packer.set_row_spacings (0);
 517         edit_packer.set_homogeneous (false);
 518         edit_packer.set_border_width (0);
 519         edit_packer.set_name ("EditorWindow");
 520
 521         /* labels for the rulers */
 522         edit_packer.attach (ruler_label_event_box,   1, 2, 0, 1,    FILL,        SHRINK, 0, 0);
 523         /* labels for the marker "tracks" */
 524         edit_packer.attach (time_button_event_box,   1, 2, 1, 2,    FILL,        SHRINK, 0, 0);
 525         /* the rulers */
 526         edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
 527         /* track controls */
 528         edit_packer.attach (controls_layout,         0, 2, 2, 3,    FILL,        FILL|EXPAND, 0, 0);
 529         /* main canvas */
 530         edit_packer.attach (track_canvas_event_box,  2, 3, 1, 3,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 531
 532         bottom_hbox.set_border_width (2);
 533         bottom_hbox.set_spacing (3);
 534
 535         _route_groups = new EditorRouteGroups (this);
 536         _routes = new EditorRoutes (this);
 537         _regions = new EditorRegions (this);
 538         _snapshots = new EditorSnapshots (this);
 539         _locations = new EditorLocations (this);
 540
 541         add_notebook_page (_("Regions"), _regions->widget ());
 542         add_notebook_page (_("Tracks & Busses"), _routes->widget ());
 543         add_notebook_page (_("Snapshots"), _snapshots->widget ());
 544         add_notebook_page (_("Track & Bus Groups"), _route_groups->widget ());
 545         add_notebook_page (_("Ranges & Marks"), _locations->widget ());
 546
 547         _the_notebook.set_show_tabs (true);
 548         _the_notebook.set_scrollable (true);
 549         _the_notebook.popup_disable ();
 550         _the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 551         _the_notebook.show_all ();
 552
 553         _notebook_shrunk = false;
 554
 555         editor_summary_pane.pack1(edit_packer);
 556
 557         Button* summary_arrows_left_left = manage (new Button);
 558         summary_arrows_left_left->add (*manage (new Arrow (ARROW_LEFT, SHADOW_NONE)));
 559         summary_arrows_left_left->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), LEFT)));
 560         summary_arrows_left_left->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 561
 562         Button* summary_arrows_left_right = manage (new Button);
 563         summary_arrows_left_right->add (*manage (new Arrow (ARROW_RIGHT, SHADOW_NONE)));
 564         summary_arrows_left_right->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), RIGHT)));
 565         summary_arrows_left_right->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 566
 567         VBox* summary_arrows_left = manage (new VBox);
 568         summary_arrows_left->pack_start (*summary_arrows_left_left);
 569         summary_arrows_left->pack_start (*summary_arrows_left_right);
 570
 571         Button* summary_arrows_right_up = manage (new Button);
 572         summary_arrows_right_up->add (*manage (new Arrow (ARROW_UP, SHADOW_NONE)));
 573         summary_arrows_right_up->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), UP)));
 574         summary_arrows_right_up->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 575
 576         Button* summary_arrows_right_down = manage (new Button);
 577         summary_arrows_right_down->add (*manage (new Arrow (ARROW_DOWN, SHADOW_NONE)));
 578         summary_arrows_right_down->signal_pressed().connect (sigc::hide_return (sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), DOWN)));
 579         summary_arrows_right_down->signal_released().connect (sigc::mem_fun (*this, &Editor::scroll_release));
 580
 581         VBox* summary_arrows_right = manage (new VBox);
 582         summary_arrows_right->pack_start (*summary_arrows_right_up);
 583         summary_arrows_right->pack_start (*summary_arrows_right_down);
 584
 585         Frame* summary_frame = manage (new Frame);
 586         summary_frame->set_shadow_type (Gtk::SHADOW_ETCHED_IN);
 587
 588         summary_frame->add (*_summary);
 589         summary_frame->show ();
 590
 591         _summary_hbox.pack_start (*summary_arrows_left, false, false);
 592         _summary_hbox.pack_start (*summary_frame, true, true);
 593         _summary_hbox.pack_start (*summary_arrows_right, false, false);
 594
 595         editor_summary_pane.pack2 (_summary_hbox);
 596
 597         edit_pane.pack1 (editor_summary_pane, true, true);
 598         edit_pane.pack2 (_the_notebook, false, true);
 599
 600         editor_summary_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun (*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&editor_summary_pane)));
 601
 602         /* XXX: editor_summary_pane might need similar to the edit_pane */
 603
 604         edit_pane.signal_size_allocate().connect (sigc::bind (sigc::mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 605
 606         Glib::PropertyProxy<int> proxy = edit_pane.property_position();
 607         proxy.signal_changed().connect (bind (sigc::ptr_fun (pane_size_watcher), static_cast<Paned*> (&edit_pane)));
 608
 609         top_hbox.pack_start (toolbar_frame);
 610
 611         HBox *hbox = manage (new HBox);
 612         hbox->pack_start (edit_pane, true, true);
 613
 614         global_vpacker.pack_start (top_hbox, false, false);
 615         global_vpacker.pack_start (*hbox, true, true);
 616
 617         global_hpacker.pack_start (global_vpacker, true, true);
 618
 619         set_name ("EditorWindow");
 620         add_accel_group (ActionManager::ui_manager->get_accel_group());
 621
 622         status_bar_hpacker.show ();
 623
 624         vpacker.pack_end (status_bar_hpacker, false, false);
 625         vpacker.pack_end (global_hpacker, true, true);
 626
 627         /* register actions now so that set_state() can find them and set toggles/checks etc */
 628
 629         register_actions ();
 630         /* when we start using our own keybinding system for the editor, this
 631          * will be uncommented
 632          */
 633         // load_bindings ();
 634
 635         setup_toolbar ();
 636
 637         _snap_type = SnapToBeat;
 638         set_snap_to (_snap_type);
 639         _snap_mode = SnapOff;
 640         set_snap_mode (_snap_mode);
 641         set_mouse_mode (MouseObject, true);
 642         pre_internal_mouse_mode = MouseObject;
 643         pre_internal_snap_type = _snap_type;
 644         pre_internal_snap_mode = _snap_mode;
 645         internal_snap_type = _snap_type;
 646         internal_snap_mode = _snap_mode;
 647         set_edit_point_preference (EditAtMouse, true);
 648
 649         _playlist_selector = new PlaylistSelector();
 650         _playlist_selector->signal_delete_event().connect (sigc::bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 651
 652         RegionView::RegionViewGoingAway.connect (*this, invalidator (*this),  boost::bind (&Editor::catch_vanishing_regionview, this, _1), gui_context());
 653
 654         /* nudge stuff */
 655
 656         nudge_forward_button.add (*(manage (new Image (::get_icon("nudge_right")))));
 657         nudge_backward_button.add (*(manage (new Image (::get_icon("nudge_left")))));
 658
 659         nudge_forward_button.set_name ("TransportButton");
 660         nudge_backward_button.set_name ("TransportButton");
 661
 662         fade_context_menu.set_name ("ArdourContextMenu");
 663
 664         /* icons, titles, WM stuff */
 665
 666         list<Glib::RefPtr<Gdk::Pixbuf> > window_icons;
 667         Glib::RefPtr<Gdk::Pixbuf> icon;
 668
 669         if ((icon = ::get_icon ("ardour_icon_16px")) != 0) {
 670                 window_icons.push_back (icon);
 671         }
 672         if ((icon = ::get_icon ("ardour_icon_22px")) != 0) {
 673                 window_icons.push_back (icon);
 674         }
 675         if ((icon = ::get_icon ("ardour_icon_32px")) != 0) {
 676                 window_icons.push_back (icon);
 677         }
 678         if ((icon = ::get_icon ("ardour_icon_48px")) != 0) {
 679                 window_icons.push_back (icon);
 680         }
 681         if (!window_icons.empty()) {
 682                 // set_icon_list (window_icons);
 683                 set_default_icon_list (window_icons);
 684         }
 685
 686         WindowTitle title(Glib::get_application_name());
 687         title += _("Editor");
 688         set_title (title.get_string());
 689         set_wmclass (X_("ardour_editor"), PROGRAM_NAME);
 690
 691         add (vpacker);
 692         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 693
 694         signal_configure_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 695         signal_delete_event().connect (sigc::mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
 696
 697         Gtkmm2ext::Keyboard::the_keyboard().ShiftReleased.connect (sigc::mem_fun (*this, &Editor::shift_key_released));
 698
 699         /* allow external control surfaces/protocols to do various things */
 700
 701         ControlProtocol::ZoomToSession.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_session, this), gui_context());
 702         ControlProtocol::ZoomIn.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_step, this, false), gui_context());
 703         ControlProtocol::ZoomOut.connect (*this, invalidator (*this), boost::bind (&Editor::temporal_zoom_step, this, true), gui_context());
 704         ControlProtocol::Undo.connect (*this, invalidator (*this), boost::bind (&Editor::undo, this, true), gui_context());
 705         ControlProtocol::Redo.connect (*this, invalidator (*this), boost::bind (&Editor::redo, this, true), gui_context());
 706         ControlProtocol::ScrollTimeline.connect (*this, invalidator (*this), boost::bind (&Editor::control_scroll, this, _1), gui_context());
 707         ControlProtocol::StepTracksUp.connect (*this, invalidator (*this), boost::bind (&Editor::control_step_tracks_up, this), gui_context());
 708         ControlProtocol::StepTracksDown.connect (*this, invalidator (*this), boost::bind (&Editor::control_step_tracks_down, this), gui_context());
 709         ControlProtocol::GotoView.connect (*this, invalidator (*this), boost::bind (&Editor::control_view, this, _1), gui_context());
 710         ControlProtocol::CloseDialog.connect (*this, invalidator (*this), Keyboard::close_current_dialog, gui_context());
 711         ControlProtocol::VerticalZoomInAll.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_in_all, this), gui_context());
 712         ControlProtocol::VerticalZoomOutAll.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_out_all, this), gui_context());
 713         ControlProtocol::VerticalZoomInSelected.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_in_selected, this), gui_context());
 714         ControlProtocol::VerticalZoomOutSelected.connect (*this, invalidator (*this), boost::bind (&Editor::control_vertical_zoom_out_selected, this), gui_context());
 715
 716         ControlProtocol::AddRouteToSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Add), gui_context());
 717         ControlProtocol::RemoveRouteFromSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Toggle), gui_context());
 718         ControlProtocol::SetRouteSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Set), gui_context());
 719         ControlProtocol::ToggleRouteSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_select, this, _1, Selection::Toggle), gui_context());
 720         ControlProtocol::ClearRouteSelection.connect (*this, invalidator (*this), boost::bind (&Editor::control_unselect, this), gui_context());
 721
 722         BasicUI::AccessAction.connect (*this, invalidator (*this), boost::bind (&Editor::access_action, this, _1, _2), gui_context());
 723
 724         /* problematic: has to return a value and thus cannot be x-thread */
 725
 726         Session::AskAboutPlaylistDeletion.connect_same_thread (*this, boost::bind (&Editor::playlist_deletion_dialog, this, _1));
 727
 728         Config->ParameterChanged.connect (*this, invalidator (*this), boost::bind (&Editor::parameter_changed, this, _1), gui_context());
 729
 730         TimeAxisView::CatchDeletion.connect (*this, invalidator (*this), boost::bind (&Editor::timeaxisview_deleted, this, _1), gui_context());
 731
 732         _ignore_region_action = false;
 733         _last_region_menu_was_main = false;
 734         _popup_region_menu_item = 0;
 735
 736         _show_marker_lines = false;
 737         _over_region_trim_target = false;
 738
 739         /* Button bindings */
 740
 741         button_bindings = new Bindings;
 742
 743         XMLNode* node = button_settings();
 744         if (node) {
 745                 for (XMLNodeList::const_iterator i = node->children().begin(); i != node->children().end(); ++i) {
 746                         button_bindings->load (**i);
 747                 }
 748         }
 749
 750         constructed = true;
 751         instant_save ();
 752
 753         setup_fade_images ();
 754 }
 755
 756 Editor::~Editor()
 757 {
 758 #ifdef WITH_CMT
 759         if(image_socket_listener) {
 760                 if(image_socket_listener->is_connected())
 761                 {
 762                         image_socket_listener->close_connection() ;
 763                 }
 764
 765                 delete image_socket_listener ;
 766                 image_socket_listener = 0 ;
 767         }
 768 #endif
 769
 770         delete button_bindings;
 771         delete _routes;
 772         delete _route_groups;
 773         delete track_canvas;
 774         delete _drags;
 775 }
 776
 777 XMLNode*
 778 Editor::button_settings () const
 779 {
 780         XMLNode* settings = ARDOUR_UI::instance()->editor_settings();
 781         XMLNode* node = find_named_node (*settings, X_("Buttons"));
 782
 783         if (!node) {
 784                 node = new XMLNode (X_("Buttons"));
 785         }
 786
 787         return node;
 788 }
 789
 790 void
 791 Editor::add_toplevel_controls (Container& cont)
 792 {
 793         vpacker.pack_start (cont, false, false);
 794         cont.show_all ();
 795 }
 796
 797 void
 798 Editor::catch_vanishing_regionview (RegionView *rv)
 799 {
 800         /* note: the selection will take care of the vanishing
 801            audioregionview by itself.
 802         */
 803
 804         if (_drags->active() && _drags->have_item (rv->get_canvas_group()) && !_drags->ending()) {
 805                 _drags->abort ();
 806         }
 807
 808         if (clicked_regionview == rv) {
 809                 clicked_regionview = 0;
 810         }
 811
 812         if (entered_regionview == rv) {
 813                 set_entered_regionview (0);
 814         }
 815
 816         if (!_all_region_actions_sensitized) {
 817                 sensitize_all_region_actions (true);
 818         }
 819
 820         _over_region_trim_target = false;
 821 }
 822
 823 void
 824 Editor::set_entered_regionview (RegionView* rv)
 825 {
 826         if (rv == entered_regionview) {
 827                 return;
 828         }
 829
 830         if (entered_regionview) {
 831                 entered_regionview->exited ();
 832         }
 833
 834         if ((entered_regionview = rv) != 0) {
 835                 entered_regionview->entered (internal_editing ());
 836         }
 837
 838         if (!_all_region_actions_sensitized && _last_region_menu_was_main) {
 839                 /* This RegionView entry might have changed what region actions
 840                    are allowed, so sensitize them all in case a key is pressed.
 841                 */
 842                 sensitize_all_region_actions (true);
 843         }
 844 }
 845
 846 void
 847 Editor::set_entered_track (TimeAxisView* tav)
 848 {
 849         if (entered_track) {
 850                 entered_track->exited ();
 851         }
 852
 853         if ((entered_track = tav) != 0) {
 854                 entered_track->entered ();
 855         }
 856 }
 857
 858 void
 859 Editor::show_window ()
 860 {
 861         if (!is_visible ()) {
 862                 show_all ();
 863
 864                 /* XXX: this is a bit unfortunate; it would probably
 865                    be nicer if we could just call show () above rather
 866                    than needing the show_all ()
 867                 */
 868
 869                 /* re-hide stuff if necessary */
 870                 editor_list_button_toggled ();
 871                 parameter_changed ("show-summary");
 872                 parameter_changed ("show-group-tabs");
 873                 parameter_changed ("show-zoom-tools");
 874
 875                 /* now reset all audio_time_axis heights, because widgets might need
 876                    to be re-hidden
 877                 */
 878
 879                 TimeAxisView *tv;
 880
 881                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 882                         tv = (static_cast<TimeAxisView*>(*i));
 883                         tv->reset_height ();
 884                 }
 885
 886                 if (current_mixer_strip) {
 887                         current_mixer_strip->hide_things ();
 888                         current_mixer_strip->parameter_changed ("mixer-strip-visibility");
 889                 }
 890         }
 891
 892         present ();
 893 }
 894
 895 void
 896 Editor::instant_save ()
 897 {
 898         if (!constructed || !ARDOUR_UI::instance()->session_loaded) {
 899                 return;
 900         }
 901
 902         if (_session) {
 903                 _session->add_instant_xml(get_state());
 904         } else {
 905                 Config->add_instant_xml(get_state());
 906         }
 907 }
 908
 909 void
 910 Editor::zoom_adjustment_changed ()
 911 {
 912         if (_session == 0) {
 913                 return;
 914         }
 915
 916         double fpu = zoom_range_clock->current_duration() / _canvas_width;
 917         bool clamped = clamp_frames_per_unit (fpu);
 918
 919         if (clamped) {
 920                 zoom_range_clock->set ((framepos_t) floor (fpu * _canvas_width));
 921         }
 922
 923         temporal_zoom (fpu);
 924 }
 925
 926 void
 927 Editor::control_vertical_zoom_in_all ()
 928 {
 929         tav_zoom_smooth (false, true);
 930 }
 931
 932 void
 933 Editor::control_vertical_zoom_out_all ()
 934 {
 935         tav_zoom_smooth (true, true);
 936 }
 937
 938 void
 939 Editor::control_vertical_zoom_in_selected ()
 940 {
 941         tav_zoom_smooth (false, false);
 942 }
 943
 944 void
 945 Editor::control_vertical_zoom_out_selected ()
 946 {
 947         tav_zoom_smooth (true, false);
 948 }
 949
 950 void
 951 Editor::control_view (uint32_t view)
 952 {
 953         goto_visual_state (view);
 954 }
 955
 956 void
 957 Editor::control_unselect ()
 958 {
 959         selection->clear_tracks ();
 960 }
 961
 962 void
 963 Editor::control_select (uint32_t rid, Selection::Operation op)
 964 {
 965         /* handles the (static) signal from the ControlProtocol class that
 966          * requests setting the selected track to a given RID
 967          */
 968
 969         if (!_session) {
 970                 return;
 971         }
 972
 973         boost::shared_ptr<Route> r = _session->route_by_remote_id (rid);
 974
 975         if (!r) {
 976                 return;
 977         }
 978
 979         TimeAxisView* tav = axis_view_from_route (r);
 980
 981         if (tav) {
 982                 switch (op) {
 983                 case Selection::Add:
 984                         selection->add (tav);
 985                         break;
 986                 case Selection::Toggle:
 987                         selection->toggle (tav);
 988                         break;
 989                 case Selection::Extend:
 990                         break;
 991                 case Selection::Set:
 992                         selection->set (tav);
 993                         break;
 994                 }
 995         } else {
 996                 selection->clear_tracks ();
 997         }
 998 }
 999
1000 void
1001 Editor::control_step_tracks_up ()
1002 {
1003         scroll_tracks_up_line ();
1004 }
1005
1006 void
1007 Editor::control_step_tracks_down ()
1008 {
1009         scroll_tracks_down_line ();
1010 }
1011
1012 void
1013 Editor::control_scroll (float fraction)
1014 {
1015         ENSURE_GUI_THREAD (*this, &Editor::control_scroll, fraction)
1016
1017         if (!_session) {
1018                 return;
1019         }
1020
1021         double step = fraction * current_page_frames();
1022
1023         /*
1024                 _control_scroll_target is an optional<T>
1025
1026                 it acts like a pointer to an framepos_t, with
1027                 a operator conversion to boolean to check
1028                 that it has a value could possibly use
1029                 playhead_cursor->current_frame to store the
1030                 value and a boolean in the class to know
1031                 when it's out of date
1032         */
1033
1034         if (!_control_scroll_target) {
1035                 _control_scroll_target = _session->transport_frame();
1036                 _dragging_playhead = true;
1037         }
1038
1039         if ((fraction < 0.0f) && (*_control_scroll_target < (framepos_t) fabs(step))) {
1040                 *_control_scroll_target = 0;
1041         } else if ((fraction > 0.0f) && (max_framepos - *_control_scroll_target < step)) {
1042                 *_control_scroll_target = max_framepos - (current_page_frames()*2); // allow room for slop in where the PH is on the screen
1043         } else {
1044                 *_control_scroll_target += (framepos_t) floor (step);
1045         }
1046
1047         /* move visuals, we'll catch up with it later */
1048
1049         playhead_cursor->set_position (*_control_scroll_target);
1050         UpdateAllTransportClocks (*_control_scroll_target);
1051
1052         if (*_control_scroll_target > (current_page_frames() / 2)) {
1053                 /* try to center PH in window */
1054                 reset_x_origin (*_control_scroll_target - (current_page_frames()/2));
1055         } else {
1056                 reset_x_origin (0);
1057         }
1058
1059         /*
1060                 Now we do a timeout to actually bring the session to the right place
1061                 according to the playhead. This is to avoid reading disk buffers on every
1062                 call to control_scroll, which is driven by ScrollTimeline and therefore
1063                 probably by a control surface wheel which can generate lots of events.
1064         */
1065         /* cancel the existing timeout */
1066
1067         control_scroll_connection.disconnect ();
1068
1069         /* add the next timeout */
1070
1071         control_scroll_connection = Glib::signal_timeout().connect (sigc::bind (sigc::mem_fun (*this, &Editor::deferred_control_scroll), *_control_scroll_target), 250);
1072 }
1073
1074 bool
1075 Editor::deferred_control_scroll (framepos_t /*target*/)
1076 {
1077         _session->request_locate (*_control_scroll_target, _session->transport_rolling());
1078         // reset for next stream
1079         _control_scroll_target = boost::none;
1080         _dragging_playhead = false;
1081         return false;
1082 }
1083
1084 void
1085 Editor::access_action (std::string action_group, std::string action_item)
1086 {
1087         if (!_session) {
1088                 return;
1089         }
1090
1091         ENSURE_GUI_THREAD (*this, &Editor::access_action, action_group, action_item)
1092
1093         RefPtr<Action> act;
1094         act = ActionManager::get_action( action_group.c_str(), action_item.c_str() );
1095
1096         if (act) {
1097                 act->activate();
1098         }
1099 }
1100
1101 void
1102 Editor::on_realize ()
1103 {
1104         Window::on_realize ();
1105         Realized ();
1106 }
1107
1108 void
1109 Editor::map_position_change (framepos_t frame)
1110 {
1111         ENSURE_GUI_THREAD (*this, &Editor::map_position_change, frame)
1112
1113         if (_session == 0) {
1114                 return;
1115         }
1116
1117         if (_follow_playhead) {
1118                 center_screen (frame);
1119         }
1120
1121         playhead_cursor->set_position (frame);
1122 }
1123
1124 void
1125 Editor::center_screen (framepos_t frame)
1126 {
1127         double page = _canvas_width * frames_per_unit;
1128
1129         /* if we're off the page, then scroll.
1130          */
1131
1132         if (frame < leftmost_frame || frame >= leftmost_frame + page) {
1133                 center_screen_internal (frame, page);
1134         }
1135 }
1136
1137 void
1138 Editor::center_screen_internal (framepos_t frame, float page)
1139 {
1140         page /= 2;
1141
1142         if (frame > page) {
1143                 frame -= (framepos_t) page;
1144         } else {
1145                 frame = 0;
1146         }
1147
1148         reset_x_origin (frame);
1149 }
1150
1151
1152 void
1153 Editor::update_title ()
1154 {
1155         ENSURE_GUI_THREAD (*this, &Editor::update_title)
1156
1157         if (_session) {
1158                 bool dirty = _session->dirty();
1159
1160                 string session_name;
1161
1162                 if (_session->snap_name() != _session->name()) {
1163                         session_name = _session->snap_name();
1164                 } else {
1165                         session_name = _session->name();
1166                 }
1167
1168                 if (dirty) {
1169                         session_name = "*" + session_name;
1170                 }
1171
1172                 WindowTitle title(session_name);
1173                 title += Glib::get_application_name();
1174                 set_title (title.get_string());
1175         } else {
1176                 /* ::session_going_away() will have taken care of it */
1177         }
1178 }
1179
1180 void
1181 Editor::set_session (Session *t)
1182 {
1183         SessionHandlePtr::set_session (t);
1184
1185         if (!_session) {
1186                 return;
1187         }
1188
1189         zoom_range_clock->set_session (_session);
1190         _playlist_selector->set_session (_session);
1191         nudge_clock->set_session (_session);
1192         _summary->set_session (_session);
1193         _group_tabs->set_session (_session);
1194         _route_groups->set_session (_session);
1195         _regions->set_session (_session);
1196         _snapshots->set_session (_session);
1197         _routes->set_session (_session);
1198         _locations->set_session (_session);
1199
1200         if (rhythm_ferret) {
1201                 rhythm_ferret->set_session (_session);
1202         }
1203
1204         if (analysis_window) {
1205                 analysis_window->set_session (_session);
1206         }
1207
1208         if (sfbrowser) {
1209                 sfbrowser->set_session (_session);
1210         }
1211
1212         compute_fixed_ruler_scale ();
1213
1214         /* Make sure we have auto loop and auto punch ranges */
1215
1216         Location* loc = _session->locations()->auto_loop_location();
1217         if (loc == 0) {
1218                 loc = new Location (*_session, 0, _session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
1219
1220                 if (loc->start() == loc->end()) {
1221                         loc->set_end (loc->start() + 1);
1222                 }
1223
1224                 _session->locations()->add (loc, false);
1225                 _session->set_auto_loop_location (loc);
1226         } else {
1227                 // force name
1228                 loc->set_name (_("Loop"));
1229         }
1230
1231         loc = _session->locations()->auto_punch_location();
1232
1233         if (loc == 0) {
1234                 loc = new Location (*_session, 0, _session->current_end_frame(), _("Punch"), (Location::Flags) (Location::IsAutoPunch | Location::IsHidden));
1235
1236                 if (loc->start() == loc->end()) {
1237                         loc->set_end (loc->start() + 1);
1238                 }
1239
1240                 _session->locations()->add (loc, false);
1241                 _session->set_auto_punch_location (loc);
1242         } else {
1243                 // force name
1244                 loc->set_name (_("Punch"));
1245         }
1246
1247         refresh_location_display ();
1248
1249         /* This must happen after refresh_location_display(), as (amongst other things) we restore
1250            the selected Marker; this needs the LocationMarker list to be available.
1251         */
1252         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
1253         set_state (*node, Stateful::loading_state_version);
1254
1255         /* catch up with the playhead */
1256
1257         _session->request_locate (playhead_cursor->current_frame);
1258         _pending_initial_locate = true;
1259
1260         update_title ();
1261
1262         /* These signals can all be emitted by a non-GUI thread. Therefore the
1263            handlers for them must not attempt to directly interact with the GUI,
1264            but use Gtkmm2ext::UI::instance()->call_slot();
1265         */
1266
1267         _session->StepEditStatusChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::step_edit_status_change, this, _1), gui_context());
1268         _session->TransportStateChange.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_transport_state, this), gui_context());
1269         _session->PositionChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::map_position_change, this, _1), gui_context());
1270         _session->RouteAdded.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_routes, this, _1), gui_context());
1271         _session->DirtyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::update_title, this), gui_context());
1272         _session->tempo_map().PropertyChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::tempo_map_changed, this, _1), gui_context());
1273         _session->Located.connect (_session_connections, invalidator (*this), boost::bind (&Editor::located, this), gui_context());
1274         _session->config.ParameterChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::parameter_changed, this, _1), gui_context());
1275         _session->StateSaved.connect (_session_connections, invalidator (*this), boost::bind (&Editor::session_state_saved, this, _1), gui_context());
1276         _session->locations()->added.connect (_session_connections, invalidator (*this), boost::bind (&Editor::add_new_location, this, _1), gui_context());
1277         _session->locations()->removed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::location_gone, this, _1), gui_context());
1278         _session->locations()->changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::refresh_location_display, this), gui_context());
1279         _session->locations()->StateChanged.connect (_session_connections, invalidator (*this), boost::bind (&Editor::refresh_location_display, this), gui_context());
1280         _session->history().Changed.connect (_session_connections, invalidator (*this), boost::bind (&Editor::history_changed, this), gui_context());
1281
1282         playhead_cursor->canvas_item.show ();
1283
1284         boost::function<void (string)> pc (boost::bind (&Editor::parameter_changed, this, _1));
1285         Config->map_parameters (pc);
1286         _session->config.map_parameters (pc);
1287
1288         restore_ruler_visibility ();
1289         //tempo_map_changed (PropertyChange (0));
1290         _session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
1291
1292         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1293                 (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
1294         }
1295
1296         super_rapid_screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
1297                 sigc::mem_fun (*this, &Editor::super_rapid_screen_update)
1298                 );
1299
1300         switch (_snap_type) {
1301         case SnapToRegionStart:
1302         case SnapToRegionEnd:
1303         case SnapToRegionSync:
1304         case SnapToRegionBoundary:
1305                 build_region_boundary_cache ();
1306                 break;
1307
1308         default:
1309                 break;
1310         }
1311
1312         /* register for undo history */
1313         _session->register_with_memento_command_factory(id(), this);
1314
1315         ActionManager::ui_manager->signal_pre_activate().connect (sigc::mem_fun (*this, &Editor::action_pre_activated));
1316
1317         start_updating_meters ();
1318 }
1319
1320 void
1321 Editor::action_pre_activated (Glib::RefPtr<Action> const & a)
1322 {
1323         if (a->get_name() == "RegionMenu") {
1324                 /* When the main menu's region menu is opened, we setup the actions so that they look right
1325                    in the menu.  I can't find a way of getting a signal when this menu is subsequently closed,
1326                    so we resensitize all region actions when the entered regionview or the region selection
1327                    changes.  HOWEVER we can't always resensitize on entered_regionview change because that
1328                    happens after the region context menu is opened.  So we set a flag here, too.
1329
1330                    What a carry on :(
1331                 */
1332                 sensitize_the_right_region_actions ();
1333                 _last_region_menu_was_main = true;
1334         }
1335 }
1336
1337 void
1338 Editor::fill_xfade_menu (Menu_Helpers::MenuList& items, bool start)
1339 {
1340         using namespace Menu_Helpers;
1341
1342         void (Editor::*emf)(FadeShape);
1343         std::map<ARDOUR::FadeShape,Gtk::Image*>* images;
1344
1345         if (start) {
1346                 images = &_xfade_in_images;
1347                 emf = &Editor::set_fade_in_shape;
1348         } else {
1349                 images = &_xfade_out_images;
1350                 emf = &Editor::set_fade_out_shape;
1351         }
1352
1353         items.push_back (
1354                 ImageMenuElem (
1355                         _("Linear (for highly correlated material)"),
1356                         *(*images)[FadeLinear],
1357                         sigc::bind (sigc::mem_fun (*this, emf), FadeLinear)
1358                         )
1359                 );
1360
1361         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1362
1363         items.push_back (
1364                 ImageMenuElem (
1365                         _("ConstantPower"),
1366                         *(*images)[FadeConstantPower],
1367                         sigc::bind (sigc::mem_fun (*this, emf), FadeConstantPower)
1368                         ));
1369
1370         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1371
1372         items.push_back (
1373                 ImageMenuElem (
1374                         _("Symmetric"),
1375                         *(*images)[FadeSymmetric],
1376                         sigc::bind (sigc::mem_fun (*this, emf), FadeSymmetric)
1377                         )
1378                 );
1379
1380         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1381
1382         items.push_back (
1383                 ImageMenuElem (
1384                         _("Slow"),
1385                         *(*images)[FadeSlow],
1386                         sigc::bind (sigc::mem_fun (*this, emf), FadeSlow)
1387                         ));
1388
1389         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1390
1391         items.push_back (
1392                 ImageMenuElem (
1393                         _("Fast"),
1394                         *(*images)[FadeFast],
1395                         sigc::bind (sigc::mem_fun (*this, emf), FadeFast)
1396                         ));
1397
1398         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1399 }
1400
1401 /** Pop up a context menu for when the user clicks on a start crossfade */
1402 void
1403 Editor::popup_xfade_in_context_menu (int button, int32_t time, ArdourCanvas::Item* /*item*/, ItemType /*item_type*/)
1404 {
1405         using namespace Menu_Helpers;
1406
1407         MenuList& items (xfade_in_context_menu.items());
1408
1409         if (items.empty()) {
1410                 fill_xfade_menu (items, true);
1411         }
1412
1413         xfade_in_context_menu.popup (button, time);
1414 }
1415
1416 /** Pop up a context menu for when the user clicks on an end crossfade */
1417 void
1418 Editor::popup_xfade_out_context_menu (int button, int32_t time, ArdourCanvas::Item* /*item*/, ItemType /*item_type*/)
1419 {
1420         using namespace Menu_Helpers;
1421
1422         MenuList& items (xfade_out_context_menu.items());
1423
1424         if (items.empty()) {
1425                 fill_xfade_menu (items, false);
1426         }
1427
1428         xfade_out_context_menu.popup (button, time);
1429 }
1430
1431
1432 /** Pop up a context menu for when the user clicks on a fade in or fade out */
1433 void
1434 Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
1435 {
1436         using namespace Menu_Helpers;
1437         AudioRegionView* arv = static_cast<AudioRegionView*> (item->get_data ("regionview"));
1438
1439         if (arv == 0) {
1440                 fatal << _("programming error: fade in canvas item has no regionview data pointer!") << endmsg;
1441                 /*NOTREACHED*/
1442         }
1443
1444         MenuList& items (fade_context_menu.items());
1445         items.clear ();
1446
1447         switch (item_type) {
1448         case FadeInItem:
1449         case FadeInHandleItem:
1450                 if (arv->audio_region()->fade_in_active()) {
1451                         items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), false)));
1452                 } else {
1453                         items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_active), true)));
1454                 }
1455
1456                 items.push_back (SeparatorElem());
1457
1458                 if (Profile->get_sae()) {
1459
1460                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLinear)));
1461                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeFast)));
1462
1463                 } else {
1464
1465                         items.push_back (
1466                                 ImageMenuElem (
1467                                         _("Linear"),
1468                                         *_fade_in_images[FadeLinear],
1469                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeLinear)
1470                                         )
1471                                 );
1472
1473                         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1474
1475                         items.push_back (
1476                                 ImageMenuElem (
1477                                         _("Slow"),
1478                                         *_fade_in_images[FadeSlow],
1479                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeSlow)
1480                                         ));
1481
1482                         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1483
1484                         items.push_back (
1485                                 ImageMenuElem (
1486                                         _("Fast"),
1487                                         *_fade_in_images[FadeFast],
1488                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeFast)
1489                                         ));
1490
1491                         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1492
1493                         items.push_back (
1494                                 ImageMenuElem (
1495                                         _("Symmetric"),
1496                                         *_fade_in_images[FadeSymmetric],
1497                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeSymmetric)
1498                                         ));
1499
1500                         items.push_back (
1501                                 ImageMenuElem (
1502                                         _("Constant Power"),
1503                                         *_fade_in_images[FadeConstantPower],
1504                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_in_shape), FadeConstantPower)
1505                                         ));
1506
1507                         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1508                 }
1509
1510                 break;
1511
1512         case FadeOutItem:
1513         case FadeOutHandleItem:
1514                 if (arv->audio_region()->fade_out_active()) {
1515                         items.push_back (MenuElem (_("Deactivate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), false)));
1516                 } else {
1517                         items.push_back (MenuElem (_("Activate"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_active), true)));
1518                 }
1519
1520                 items.push_back (SeparatorElem());
1521
1522                 if (Profile->get_sae()) {
1523                         items.push_back (MenuElem (_("Linear"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeLinear)));
1524                         items.push_back (MenuElem (_("Slowest"), sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeSlow)));
1525                 } else {
1526
1527                         items.push_back (
1528                                 ImageMenuElem (
1529                                         _("Linear"),
1530                                         *_fade_out_images[FadeLinear],
1531                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeLinear)
1532                                         )
1533                                 );
1534
1535                         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1536
1537                         items.push_back (
1538                                 ImageMenuElem (
1539                                         _("Slow"),
1540                                         *_fade_out_images[FadeSlow],
1541                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeSlow)
1542                                         ));
1543
1544                         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1545
1546                         items.push_back (
1547                                 ImageMenuElem (
1548                                         _("Fast"),
1549                                         *_fade_out_images[FadeFast],
1550                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeFast)
1551                                         ));
1552
1553                         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1554
1555                         items.push_back (
1556                                 ImageMenuElem (
1557                                         _("Symmetric"),
1558                                         *_fade_out_images[FadeSymmetric],
1559                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeSymmetric)
1560                                         ));
1561
1562                         items.push_back (
1563                                 ImageMenuElem (
1564                                         _("Constant Power"),
1565                                         *_fade_out_images[FadeConstantPower],
1566                                         sigc::bind (sigc::mem_fun (*this, &Editor::set_fade_out_shape), FadeConstantPower)
1567                                         ));
1568
1569                         dynamic_cast<ImageMenuItem*>(&items.back())->set_always_show_image ();
1570                 }
1571
1572                 break;
1573
1574         default:
1575                 fatal << _("programming error: ")
1576                       << X_("non-fade canvas item passed to popup_fade_context_menu()")
1577                       << endmsg;
1578                 /*NOTREACHED*/
1579         }
1580
1581         fade_context_menu.popup (button, time);
1582 }
1583
1584 void
1585 Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection)
1586 {
1587         using namespace Menu_Helpers;
1588         Menu* (Editor::*build_menu_function)();
1589         Menu *menu;
1590
1591         switch (item_type) {
1592         case RegionItem:
1593         case RegionViewName:
1594         case RegionViewNameHighlight:
1595         case LeftFrameHandle:
1596         case RightFrameHandle:
1597                 if (with_selection) {
1598                         build_menu_function = &Editor::build_track_selection_context_menu;
1599                 } else {
1600                         build_menu_function = &Editor::build_track_region_context_menu;
1601                 }
1602                 break;
1603
1604         case SelectionItem:
1605                 if (with_selection) {
1606                         build_menu_function = &Editor::build_track_selection_context_menu;
1607                 } else {
1608                         build_menu_function = &Editor::build_track_context_menu;
1609                 }
1610                 break;
1611
1612         case StreamItem:
1613                 if (clicked_routeview->track()) {
1614                         build_menu_function = &Editor::build_track_context_menu;
1615                 } else {
1616                         build_menu_function = &Editor::build_track_bus_context_menu;
1617                 }
1618                 break;
1619
1620         default:
1621                 /* probably shouldn't happen but if it does, we don't care */
1622                 return;
1623         }
1624
1625         menu = (this->*build_menu_function)();
1626         menu->set_name ("ArdourContextMenu");
1627
1628         /* now handle specific situations */
1629
1630         switch (item_type) {
1631         case RegionItem:
1632         case RegionViewName:
1633         case RegionViewNameHighlight:
1634         case LeftFrameHandle:
1635         case RightFrameHandle:
1636                 if (!with_selection) {
1637                         if (region_edit_menu_split_item) {
1638                                 if (clicked_regionview && clicked_regionview->region()->covers (get_preferred_edit_position())) {
1639                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, true);
1640                                 } else {
1641                                         ActionManager::set_sensitive (ActionManager::edit_point_in_region_sensitive_actions, false);
1642                                 }
1643                         }
1644                         if (region_edit_menu_split_multichannel_item) {
1645                                 if (clicked_regionview && clicked_regionview->region()->n_channels() > 1) {
1646                                         region_edit_menu_split_multichannel_item->set_sensitive (true);
1647                                 } else {
1648                                         region_edit_menu_split_multichannel_item->set_sensitive (false);
1649                                 }
1650                         }
1651                 }
1652                 break;
1653
1654         case SelectionItem:
1655                 break;
1656
1657         case StreamItem:
1658                 break;
1659
1660         default:
1661                 /* probably shouldn't happen but if it does, we don't care */
1662                 return;
1663         }
1664
1665         if (item_type != SelectionItem && clicked_routeview && clicked_routeview->audio_track()) {
1666
1667                 /* Bounce to disk */
1668
1669                 using namespace Menu_Helpers;
1670                 MenuList& edit_items  = menu->items();
1671
1672                 edit_items.push_back (SeparatorElem());
1673
1674                 switch (clicked_routeview->audio_track()->freeze_state()) {
1675                 case AudioTrack::NoFreeze:
1676                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1677                         break;
1678
1679                 case AudioTrack::Frozen:
1680                         edit_items.push_back (MenuElem (_("Unfreeze"), sigc::mem_fun(*this, &Editor::unfreeze_route)));
1681                         break;
1682
1683                 case AudioTrack::UnFrozen:
1684                         edit_items.push_back (MenuElem (_("Freeze"), sigc::mem_fun(*this, &Editor::freeze_route)));
1685                         break;
1686                 }
1687
1688         }
1689
1690         if (item_type == StreamItem && clicked_routeview) {
1691                 clicked_routeview->build_underlay_menu(menu);
1692         }
1693
1694         /* When the region menu is opened, we setup the actions so that they look right
1695            in the menu.
1696         */
1697         sensitize_the_right_region_actions ();
1698         _last_region_menu_was_main = false;
1699
1700         menu->signal_hide().connect (sigc::bind (sigc::mem_fun (*this, &Editor::sensitize_all_region_actions), true));
1701         menu->popup (button, time);
1702 }
1703
1704 Menu*
1705 Editor::build_track_context_menu ()
1706 {
1707         using namespace Menu_Helpers;
1708
1709         MenuList& edit_items = track_context_menu.items();
1710         edit_items.clear();
1711
1712         add_dstream_context_items (edit_items);
1713         return &track_context_menu;
1714 }
1715
1716 Menu*
1717 Editor::build_track_bus_context_menu ()
1718 {
1719         using namespace Menu_Helpers;
1720
1721         MenuList& edit_items = track_context_menu.items();
1722         edit_items.clear();
1723
1724         add_bus_context_items (edit_items);
1725         return &track_context_menu;
1726 }
1727
1728 Menu*
1729 Editor::build_track_region_context_menu ()
1730 {
1731         using namespace Menu_Helpers;
1732         MenuList& edit_items  = track_region_context_menu.items();
1733         edit_items.clear();
1734
1735         /* we've just cleared the track region context menu, so the menu that these
1736            two items were on will have disappeared; stop them dangling.
1737         */
1738         region_edit_menu_split_item = 0;
1739         region_edit_menu_split_multichannel_item = 0;
1740
1741         RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (clicked_axisview);
1742
1743         if (rtv) {
1744                 boost::shared_ptr<Track> tr;
1745                 boost::shared_ptr<Playlist> pl;
1746
1747                 if ((tr = rtv->track())) {
1748                         add_region_context_items (edit_items, tr);
1749                 }
1750         }
1751
1752         add_dstream_context_items (edit_items);
1753
1754         return &track_region_context_menu;
1755 }
1756
1757 void
1758 Editor::analyze_region_selection ()
1759 {
1760         if (analysis_window == 0) {
1761                 analysis_window = new AnalysisWindow();
1762
1763                 if (_session != 0)
1764                         analysis_window->set_session(_session);
1765
1766                 analysis_window->show_all();
1767         }
1768
1769         analysis_window->set_regionmode();
1770         analysis_window->analyze();
1771
1772         analysis_window->present();
1773 }
1774
1775 void
1776 Editor::analyze_range_selection()
1777 {
1778         if (analysis_window == 0) {
1779                 analysis_window = new AnalysisWindow();
1780
1781                 if (_session != 0)
1782                         analysis_window->set_session(_session);
1783
1784                 analysis_window->show_all();
1785         }
1786
1787         analysis_window->set_rangemode();
1788         analysis_window->analyze();
1789
1790         analysis_window->present();
1791 }
1792
1793 Menu*
1794 Editor::build_track_selection_context_menu ()
1795 {
1796         using namespace Menu_Helpers;
1797         MenuList& edit_items  = track_selection_context_menu.items();
1798         edit_items.clear ();
1799
1800         add_selection_context_items (edit_items);
1801         // edit_items.push_back (SeparatorElem());
1802         // add_dstream_context_items (edit_items);
1803
1804         return &track_selection_context_menu;
1805 }
1806
1807 void
1808 Editor::add_region_context_items (Menu_Helpers::MenuList& edit_items, boost::shared_ptr<Track> track)
1809 {
1810         using namespace Menu_Helpers;
1811
1812         /* OK, stick the region submenu at the top of the list, and then add
1813            the standard items.
1814         */
1815
1816         RegionSelection rs = get_regions_from_selection_and_entered ();
1817
1818         string::size_type pos = 0;
1819         string menu_item_name = (rs.size() == 1) ? rs.front()->region()->name() : _("Selected Regions");
1820
1821         /* we have to hack up the region name because "_" has a special
1822            meaning for menu titles.
1823         */
1824
1825         while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
1826                 menu_item_name.replace (pos, 1, "__");
1827                 pos += 2;
1828         }
1829
1830         if (_popup_region_menu_item == 0) {
1831                 _popup_region_menu_item = new MenuItem (menu_item_name);
1832                 _popup_region_menu_item->set_submenu (*dynamic_cast<Menu*> (ActionManager::get_widget (X_("/PopupRegionMenu"))));
1833                 _popup_region_menu_item->show ();
1834         } else {
1835                 _popup_region_menu_item->set_label (menu_item_name);
1836         }
1837
1838         const framepos_t position = get_preferred_edit_position (false, true);
1839
1840         edit_items.push_back (*_popup_region_menu_item);
1841         if (track->playlist()->count_regions_at (position) > 1 && (layering_order_editor == 0 || !layering_order_editor->is_visible ())) {
1842                 edit_items.push_back (*manage (_region_actions->get_action ("choose-top-region-context-menu")->create_menu_item ()));
1843         }
1844         edit_items.push_back (SeparatorElem());
1845 }
1846
1847 /** Add context menu items relevant to selection ranges.
1848  * @param edit_items List to add the items to.
1849  */
1850 void
1851 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
1852 {
1853         using namespace Menu_Helpers;
1854
1855         edit_items.push_back (MenuElem (_("Play Range"), sigc::mem_fun(*this, &Editor::play_selection)));
1856         edit_items.push_back (MenuElem (_("Loop Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), true)));
1857
1858         edit_items.push_back (SeparatorElem());
1859         edit_items.push_back (MenuElem (_("Spectral Analysis"), sigc::mem_fun(*this, &Editor::analyze_range_selection)));
1860
1861         edit_items.push_back (SeparatorElem());
1862
1863         edit_items.push_back (
1864                 MenuElem (
1865                         _("Move Range Start to Previous Region Boundary"),
1866                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), false, false)
1867                         )
1868                 );
1869
1870         edit_items.push_back (
1871                 MenuElem (
1872                         _("Move Range Start to Next Region Boundary"),
1873                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), false, true)
1874                         )
1875                 );
1876
1877         edit_items.push_back (
1878                 MenuElem (
1879                         _("Move Range End to Previous Region Boundary"),
1880                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), true, false)
1881                         )
1882                 );
1883
1884         edit_items.push_back (
1885                 MenuElem (
1886                         _("Move Range End to Next Region Boundary"),
1887                         sigc::bind (sigc::mem_fun (*this, &Editor::move_range_selection_start_or_end_to_region_boundary), true, true)
1888                         )
1889                 );
1890
1891         edit_items.push_back (SeparatorElem());
1892         edit_items.push_back (MenuElem (_("Convert to Region In-Place"), mem_fun(*this, &Editor::separate_region_from_selection)));
1893         edit_items.push_back (MenuElem (_("Convert to Region in Region List"), sigc::mem_fun(*this, &Editor::new_region_from_selection)));
1894
1895         edit_items.push_back (SeparatorElem());
1896         edit_items.push_back (MenuElem (_("Select All in Range"), sigc::mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
1897
1898         edit_items.push_back (SeparatorElem());
1899         edit_items.push_back (MenuElem (_("Set Loop from Range"), sigc::bind (sigc::mem_fun(*this, &Editor::set_loop_from_selection), false)));
1900         edit_items.push_back (MenuElem (_("Set Punch from Range"), sigc::mem_fun(*this, &Editor::set_punch_from_selection)));
1901
1902         edit_items.push_back (SeparatorElem());
1903         edit_items.push_back (MenuElem (_("Add Range Markers"), sigc::mem_fun (*this, &Editor::add_location_from_selection)));
1904
1905         edit_items.push_back (SeparatorElem());
1906         edit_items.push_back (MenuElem (_("Crop Region to Range"), sigc::mem_fun(*this, &Editor::crop_region_to_selection)));
1907         edit_items.push_back (MenuElem (_("Fill Range with Region"), sigc::mem_fun(*this, &Editor::region_fill_selection)));
1908         edit_items.push_back (MenuElem (_("Duplicate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::duplicate_range), false)));
1909
1910         edit_items.push_back (SeparatorElem());
1911         edit_items.push_back (MenuElem (_("Consolidate Range"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, false)));
1912         edit_items.push_back (MenuElem (_("Consolidate Range With Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), true, true)));
1913         edit_items.push_back (MenuElem (_("Bounce Range to Region List"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, false)));
1914         edit_items.push_back (MenuElem (_("Bounce Range to Region List With Processing"), sigc::bind (sigc::mem_fun(*this, &Editor::bounce_range_selection), false, true)));
1915         edit_items.push_back (MenuElem (_("Export Range..."), sigc::mem_fun(*this, &Editor::export_selection)));
1916 }
1917
1918
1919 void
1920 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
1921 {
1922         using namespace Menu_Helpers;
1923
1924         /* Playback */
1925
1926         Menu *play_menu = manage (new Menu);
1927         MenuList& play_items = play_menu->items();
1928         play_menu->set_name ("ArdourContextMenu");
1929
1930         play_items.push_back (MenuElem (_("Play From Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
1931         play_items.push_back (MenuElem (_("Play From Start"), sigc::mem_fun(*this, &Editor::play_from_start)));
1932         play_items.push_back (MenuElem (_("Play Region"), sigc::mem_fun(*this, &Editor::play_selected_region)));
1933         play_items.push_back (SeparatorElem());
1934         play_items.push_back (MenuElem (_("Loop Region"), sigc::bind (sigc::mem_fun (*this, &Editor::set_loop_from_region), true)));
1935
1936         edit_items.push_back (MenuElem (_("Play"), *play_menu));
1937
1938         /* Selection */
1939
1940         Menu *select_menu = manage (new Menu);
1941         MenuList& select_items = select_menu->items();
1942         select_menu->set_name ("ArdourContextMenu");
1943
1944         select_items.push_back (MenuElem (_("Select All in Track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
1945         select_items.push_back (MenuElem (_("Select All"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all), Selection::Set)));
1946         select_items.push_back (MenuElem (_("Invert Selection in Track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
1947         select_items.push_back (MenuElem (_("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
1948         select_items.push_back (SeparatorElem());
1949         select_items.push_back (MenuElem (_("Set Range to Loop Range"), sigc::mem_fun(*this, &Editor::set_selection_from_loop)));
1950         select_items.push_back (MenuElem (_("Set Range to Punch Range"), sigc::mem_fun(*this, &Editor::set_selection_from_punch)));
1951         select_items.push_back (SeparatorElem());
1952         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
1953         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
1954         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
1955         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
1956         select_items.push_back (MenuElem (_("Select All Between Playhead and Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), false)));
1957         select_items.push_back (MenuElem (_("Select All Within Playhead and Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_between), true)));
1958         select_items.push_back (MenuElem (_("Select Range Between Playhead and Edit Point"), sigc::mem_fun(*this, &Editor::select_range_between)));
1959
1960         edit_items.push_back (MenuElem (_("Select"), *select_menu));
1961
1962         /* Cut-n-Paste */
1963
1964         Menu *cutnpaste_menu = manage (new Menu);
1965         MenuList& cutnpaste_items = cutnpaste_menu->items();
1966         cutnpaste_menu->set_name ("ArdourContextMenu");
1967
1968         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
1969         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
1970         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f, true)));
1971
1972         cutnpaste_items.push_back (SeparatorElem());
1973
1974         cutnpaste_items.push_back (MenuElem (_("Align"), sigc::bind (sigc::mem_fun (*this, &Editor::align_regions), ARDOUR::SyncPoint)));
1975         cutnpaste_items.push_back (MenuElem (_("Align Relative"), sigc::bind (sigc::mem_fun (*this, &Editor::align_regions_relative), ARDOUR::SyncPoint)));
1976
1977         edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
1978
1979         /* Adding new material */
1980
1981         edit_items.push_back (SeparatorElem());
1982         edit_items.push_back (MenuElem (_("Insert Selected Region"), sigc::bind (sigc::mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
1983         edit_items.push_back (MenuElem (_("Insert Existing Media"), sigc::bind (sigc::mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
1984
1985         /* Nudge track */
1986
1987         Menu *nudge_menu = manage (new Menu());
1988         MenuList& nudge_items = nudge_menu->items();
1989         nudge_menu->set_name ("ArdourContextMenu");
1990
1991         edit_items.push_back (SeparatorElem());
1992         nudge_items.push_back (MenuElem (_("Nudge Entire Track Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
1993         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
1994         nudge_items.push_back (MenuElem (_("Nudge Entire Track Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
1995         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
1996
1997         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
1998 }
1999
2000 void
2001 Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
2002 {
2003         using namespace Menu_Helpers;
2004
2005         /* Playback */
2006
2007         Menu *play_menu = manage (new Menu);
2008         MenuList& play_items = play_menu->items();
2009         play_menu->set_name ("ArdourContextMenu");
2010
2011         play_items.push_back (MenuElem (_("Play From Edit Point"), sigc::mem_fun(*this, &Editor::play_from_edit_point)));
2012         play_items.push_back (MenuElem (_("Play From Start"), sigc::mem_fun(*this, &Editor::play_from_start)));
2013         edit_items.push_back (MenuElem (_("Play"), *play_menu));
2014
2015         /* Selection */
2016
2017         Menu *select_menu = manage (new Menu);
2018         MenuList& select_items = select_menu->items();
2019         select_menu->set_name ("ArdourContextMenu");
2020
2021         select_items.push_back (MenuElem (_("Select All in Track"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
2022         select_items.push_back (MenuElem (_("Select All"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all), Selection::Set)));
2023         select_items.push_back (MenuElem (_("Invert Selection in Track"), sigc::mem_fun(*this, &Editor::invert_selection_in_track)));
2024         select_items.push_back (MenuElem (_("Invert Selection"), sigc::mem_fun(*this, &Editor::invert_selection)));
2025         select_items.push_back (SeparatorElem());
2026         select_items.push_back (MenuElem (_("Select All After Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), true)));
2027         select_items.push_back (MenuElem (_("Select All Before Edit Point"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_edit), false)));
2028         select_items.push_back (MenuElem (_("Select All After Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
2029         select_items.push_back (MenuElem (_("Select All Before Playhead"), sigc::bind (sigc::mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
2030
2031         edit_items.push_back (MenuElem (_("Select"), *select_menu));
2032
2033         /* Cut-n-Paste */
2034
2035         Menu *cutnpaste_menu = manage (new Menu);
2036         MenuList& cutnpaste_items = cutnpaste_menu->items();
2037         cutnpaste_menu->set_name ("ArdourContextMenu");
2038
2039         cutnpaste_items.push_back (MenuElem (_("Cut"), sigc::mem_fun(*this, &Editor::cut)));
2040         cutnpaste_items.push_back (MenuElem (_("Copy"), sigc::mem_fun(*this, &Editor::copy)));
2041         cutnpaste_items.push_back (MenuElem (_("Paste"), sigc::bind (sigc::mem_fun(*this, &Editor::paste), 1.0f, true)));
2042
2043         Menu *nudge_menu = manage (new Menu());
2044         MenuList& nudge_items = nudge_menu->items();
2045         nudge_menu->set_name ("ArdourContextMenu");
2046
2047         edit_items.push_back (SeparatorElem());
2048         nudge_items.push_back (MenuElem (_("Nudge Entire Track Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, true))));
2049         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Later"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, true))));
2050         nudge_items.push_back (MenuElem (_("Nudge Entire Track Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), false, false))));
2051         nudge_items.push_back (MenuElem (_("Nudge Track After Edit Point Earlier"), (sigc::bind (sigc::mem_fun(*this, &Editor::nudge_track), true, false))));
2052
2053         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
2054 }
2055
2056 SnapType
2057 Editor::snap_type() const
2058 {
2059         return _snap_type;
2060 }
2061
2062 SnapMode
2063 Editor::snap_mode() const
2064 {
2065         return _snap_mode;
2066 }
2067
2068 void
2069 Editor::set_snap_to (SnapType st)
2070 {
2071         unsigned int snap_ind = (unsigned int)st;
2072
2073         _snap_type = st;
2074
2075         if (snap_ind > snap_type_strings.size() - 1) {
2076                 snap_ind = 0;
2077                 _snap_type = (SnapType)snap_ind;
2078         }
2079
2080         string str = snap_type_strings[snap_ind];
2081
2082         if (str != snap_type_selector.get_active_text()) {
2083                 snap_type_selector.set_active_text (str);
2084         }
2085
2086         instant_save ();
2087
2088         switch (_snap_type) {
2089         case SnapToBeatDiv128:
2090         case SnapToBeatDiv64:
2091         case SnapToBeatDiv32:
2092         case SnapToBeatDiv28:
2093         case SnapToBeatDiv24:
2094         case SnapToBeatDiv20:
2095         case SnapToBeatDiv16:
2096         case SnapToBeatDiv14:
2097         case SnapToBeatDiv12:
2098         case SnapToBeatDiv10:
2099         case SnapToBeatDiv8:
2100         case SnapToBeatDiv7:
2101         case SnapToBeatDiv6:
2102         case SnapToBeatDiv5:
2103         case SnapToBeatDiv4:
2104         case SnapToBeatDiv3:
2105         case SnapToBeatDiv2:
2106                 compute_bbt_ruler_scale (leftmost_frame, leftmost_frame + current_page_frames());
2107                 update_tempo_based_rulers ();
2108                 break;
2109
2110         case SnapToRegionStart:
2111         case SnapToRegionEnd:
2112         case SnapToRegionSync:
2113         case SnapToRegionBoundary:
2114                 build_region_boundary_cache ();
2115                 break;
2116
2117         default:
2118                 /* relax */
2119                 break;
2120         }
2121
2122         SnapChanged (); /* EMIT SIGNAL */
2123 }
2124
2125 void
2126 Editor::set_snap_mode (SnapMode mode)
2127 {
2128         _snap_mode = mode;
2129         string str = snap_mode_strings[(int)mode];
2130
2131         if (str != snap_mode_selector.get_active_text ()) {
2132                 snap_mode_selector.set_active_text (str);
2133         }
2134
2135         instant_save ();
2136 }
2137 void
2138 Editor::set_edit_point_preference (EditPoint ep, bool force)
2139 {
2140         bool changed = (_edit_point != ep);
2141
2142         _edit_point = ep;
2143         string str = edit_point_strings[(int)ep];
2144
2145         if (str != edit_point_selector.get_active_text ()) {
2146                 edit_point_selector.set_active_text (str);
2147         }
2148
2149         set_canvas_cursor ();
2150
2151         if (!force && !changed) {
2152                 return;
2153         }
2154
2155         const char* action=NULL;
2156
2157         switch (_edit_point) {
2158         case EditAtPlayhead:
2159                 action = "edit-at-playhead";
2160                 break;
2161         case EditAtSelectedMarker:
2162                 action = "edit-at-marker";
2163                 break;
2164         case EditAtMouse:
2165                 action = "edit-at-mouse";
2166                 break;
2167         }
2168
2169         Glib::RefPtr<Action> act = ActionManager::get_action ("Editor", action);
2170         if (act) {
2171                 Glib::RefPtr<RadioAction>::cast_dynamic(act)->set_active (true);
2172         }
2173
2174         framepos_t foo;
2175         bool in_track_canvas;
2176
2177         if (!mouse_frame (foo, in_track_canvas)) {
2178                 in_track_canvas = false;
2179         }
2180
2181         reset_canvas_action_sensitivity (in_track_canvas);
2182
2183         instant_save ();
2184 }
2185
2186 int
2187 Editor::set_state (const XMLNode& node, int /*version*/)
2188 {
2189         const XMLProperty* prop;
2190         XMLNode* geometry;
2191         int x, y;
2192         Gdk::Geometry g;
2193
2194         set_id (node);
2195
2196         g.base_width = default_width;
2197         g.base_height = default_height;
2198         x = 1;
2199         y = 1;
2200
2201         if ((geometry = find_named_node (node, "geometry")) != 0) {
2202
2203                 XMLProperty* prop;
2204
2205                 if ((prop = geometry->property("x_size")) == 0) {
2206                         prop = geometry->property ("x-size");
2207                 }
2208                 if (prop) {
2209                         g.base_width = atoi(prop->value());
2210                 }
2211                 if ((prop = geometry->property("y_size")) == 0) {
2212                         prop = geometry->property ("y-size");
2213                 }
2214                 if (prop) {
2215                         g.base_height = atoi(prop->value());
2216                 }
2217
2218                 if ((prop = geometry->property ("x_pos")) == 0) {
2219                         prop = geometry->property ("x-pos");
2220                 }
2221                 if (prop) {
2222                         x = atoi (prop->value());
2223
2224                 }
2225                 if ((prop = geometry->property ("y_pos")) == 0) {
2226                         prop = geometry->property ("y-pos");
2227                 }
2228                 if (prop) {
2229                         y = atoi (prop->value());
2230                 }
2231         }
2232
2233         set_default_size (g.base_width, g.base_height);
2234         move (x, y);
2235
2236         if (_session && (prop = node.property ("playhead"))) {
2237                 framepos_t pos;
2238                 sscanf (prop->value().c_str(), "%" PRIi64, &pos);
2239                 playhead_cursor->set_position (pos);
2240         } else {
2241                 playhead_cursor->set_position (0);
2242         }
2243
2244         if ((prop = node.property ("mixer-width"))) {
2245                 editor_mixer_strip_width = Width (string_2_enum (prop->value(), editor_mixer_strip_width));
2246         }
2247
2248         if ((prop = node.property ("zoom-focus"))) {
2249                 set_zoom_focus ((ZoomFocus) string_2_enum (prop->value(), zoom_focus));
2250         }
2251
2252         if ((prop = node.property ("zoom"))) {
2253                 reset_zoom (PBD::atof (prop->value()));
2254         } else {
2255                 reset_zoom (frames_per_unit);
2256         }
2257
2258         if ((prop = node.property ("snap-to"))) {
2259                 set_snap_to ((SnapType) string_2_enum (prop->value(), _snap_type));
2260         }
2261
2262         if ((prop = node.property ("snap-mode"))) {
2263                 set_snap_mode ((SnapMode) string_2_enum (prop->value(), _snap_mode));
2264         }
2265
2266         if ((prop = node.property ("internal-snap-to"))) {
2267                 internal_snap_type = (SnapType) string_2_enum (prop->value(), internal_snap_type);
2268         }
2269
2270         if ((prop = node.property ("internal-snap-mode"))) {
2271                 internal_snap_mode = (SnapMode) string_2_enum (prop->value(), internal_snap_mode);
2272         }
2273
2274         if ((prop = node.property ("pre-internal-snap-to"))) {
2275                 pre_internal_snap_type = (SnapType) string_2_enum (prop->value(), pre_internal_snap_type);
2276         }
2277
2278         if ((prop = node.property ("pre-internal-snap-mode"))) {
2279                 pre_internal_snap_mode = (SnapMode) string_2_enum (prop->value(), pre_internal_snap_mode);
2280         }
2281
2282         if ((prop = node.property ("mouse-mode"))) {
2283                 MouseMode m = str2mousemode(prop->value());
2284                 set_mouse_mode (m, true);
2285         } else {
2286                 set_mouse_mode (MouseObject, true);
2287         }
2288
2289         if ((prop = node.property ("left-frame")) != 0) {
2290                 framepos_t pos;
2291                 if (sscanf (prop->value().c_str(), "%" PRId64, &pos) == 1) {
2292                         if (pos < 0) {
2293                                 pos = 0;
2294                         }
2295                         reset_x_origin (pos);
2296                 }
2297         }
2298
2299         if ((prop = node.property ("y-origin")) != 0) {
2300                 reset_y_origin (atof (prop->value ()));
2301         }
2302
2303         if ((prop = node.property ("internal-edit"))) {
2304                 bool yn = string_is_affirmative (prop->value());
2305                 RefPtr<Action> act = ActionManager::get_action (X_("MouseMode"), X_("toggle-internal-edit"));
2306                 if (act) {
2307                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2308                         tact->set_active (!yn);
2309                         tact->set_active (yn);
2310                 }
2311         }
2312
2313         if ((prop = node.property ("join-object-range"))) {
2314                 ActionManager::set_toggle_action ("MouseMode", "set-mouse-mode-object-range", string_is_affirmative (prop->value ()));
2315         }
2316
2317         if ((prop = node.property ("edit-point"))) {
2318                 set_edit_point_preference ((EditPoint) string_2_enum (prop->value(), _edit_point), true);
2319         }
2320
2321         if ((prop = node.property ("show-measures"))) {
2322                 bool yn = string_is_affirmative (prop->value());
2323                 _show_measures = yn;
2324                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
2325                 if (act) {
2326                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2327                         /* do it twice to force the change */
2328                         tact->set_active (!yn);
2329                         tact->set_active (yn);
2330                 }
2331         }
2332
2333         if ((prop = node.property ("follow-playhead"))) {
2334                 bool yn = string_is_affirmative (prop->value());
2335                 set_follow_playhead (yn);
2336                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
2337                 if (act) {
2338                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2339                         if (tact->get_active() != yn) {
2340                                 tact->set_active (yn);
2341                         }
2342                 }
2343         }
2344
2345         if ((prop = node.property ("stationary-playhead"))) {
2346                 bool yn = string_is_affirmative (prop->value());
2347                 set_stationary_playhead (yn);
2348                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-stationary-playhead"));
2349                 if (act) {
2350                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2351                         if (tact->get_active() != yn) {
2352                                 tact->set_active (yn);
2353                         }
2354                 }
2355         }
2356
2357         if ((prop = node.property ("region-list-sort-type"))) {
2358                 RegionListSortType st;
2359                 _regions->reset_sort_type ((RegionListSortType) string_2_enum (prop->value(), st), true);
2360         }
2361
2362         if ((prop = node.property ("show-editor-mixer"))) {
2363
2364                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2365                 assert (act);
2366
2367                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2368                 bool yn = string_is_affirmative (prop->value());
2369
2370                 /* do it twice to force the change */
2371
2372                 tact->set_active (!yn);
2373                 tact->set_active (yn);
2374         }
2375
2376         if ((prop = node.property ("show-editor-list"))) {
2377
2378                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2379                 assert (act);
2380
2381                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2382                 bool yn = string_is_affirmative (prop->value());
2383
2384                 /* do it twice to force the change */
2385
2386                 tact->set_active (!yn);
2387                 tact->set_active (yn);
2388         }
2389
2390         if ((prop = node.property (X_("editor-list-page")))) {
2391                 _the_notebook.set_current_page (atoi (prop->value ()));
2392         }
2393
2394         if ((prop = node.property (X_("show-marker-lines")))) {
2395                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-marker-lines"));
2396                 assert (act);
2397                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic (act);
2398                 bool yn = string_is_affirmative (prop->value ());
2399
2400                 tact->set_active (!yn);
2401                 tact->set_active (yn);
2402         }
2403
2404         XMLNodeList children = node.children ();
2405         for (XMLNodeList::const_iterator i = children.begin(); i != children.end(); ++i) {
2406                 selection->set_state (**i, Stateful::current_state_version);
2407                 _regions->set_state (**i);
2408         }
2409
2410         if ((prop = node.property ("maximised"))) {
2411                 bool yn = string_is_affirmative (prop->value());
2412                 if (yn) {
2413                         ActionManager::do_action ("Common", "ToggleMaximalEditor");
2414                 }
2415         }
2416
2417         if ((prop = node.property ("nudge-clock-value"))) {
2418                 framepos_t f;
2419                 sscanf (prop->value().c_str(), "%" PRId64, &f);
2420                 nudge_clock->set (f);
2421         } else {
2422                 nudge_clock->set_mode (AudioClock::Timecode);
2423                 nudge_clock->set (_session->frame_rate() * 5, true);
2424         }
2425
2426         return 0;
2427 }
2428
2429 XMLNode&
2430 Editor::get_state ()
2431 {
2432         XMLNode* node = new XMLNode ("Editor");
2433         char buf[32];
2434
2435         id().print (buf, sizeof (buf));
2436         node->add_property ("id", buf);
2437
2438         if (is_realized()) {
2439                 Glib::RefPtr<Gdk::Window> win = get_window();
2440
2441                 int x, y, width, height;
2442                 win->get_root_origin(x, y);
2443                 win->get_size(width, height);
2444
2445                 XMLNode* geometry = new XMLNode ("geometry");
2446
2447                 snprintf(buf, sizeof(buf), "%d", width);
2448                 geometry->add_property("x-size", string(buf));
2449                 snprintf(buf, sizeof(buf), "%d", height);
2450                 geometry->add_property("y-size", string(buf));
2451                 snprintf(buf, sizeof(buf), "%d", x);
2452                 geometry->add_property("x-pos", string(buf));
2453                 snprintf(buf, sizeof(buf), "%d", y);
2454                 geometry->add_property("y-pos", string(buf));
2455                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
2456                 geometry->add_property("edit-horizontal-pane-pos", string(buf));
2457                 geometry->add_property("notebook-shrunk", _notebook_shrunk ? "1" : "0");
2458                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&editor_summary_pane)->gobj()));
2459                 geometry->add_property("edit-vertical-pane-pos", string(buf));
2460
2461                 node->add_child_nocopy (*geometry);
2462         }
2463
2464         maybe_add_mixer_strip_width (*node);
2465
2466         node->add_property ("zoom-focus", enum_2_string (zoom_focus));
2467         snprintf (buf, sizeof(buf), "%f", frames_per_unit);
2468         node->add_property ("zoom", buf);
2469         node->add_property ("snap-to", enum_2_string (_snap_type));
2470         node->add_property ("snap-mode", enum_2_string (_snap_mode));
2471         node->add_property ("internal-snap-to", enum_2_string (internal_snap_type));
2472         node->add_property ("internal-snap-mode", enum_2_string (internal_snap_mode));
2473         node->add_property ("pre-internal-snap-to", enum_2_string (pre_internal_snap_type));
2474         node->add_property ("pre-internal-snap-mode", enum_2_string (pre_internal_snap_mode));
2475         node->add_property ("edit-point", enum_2_string (_edit_point));
2476
2477         snprintf (buf, sizeof (buf), "%" PRIi64, playhead_cursor->current_frame);
2478         node->add_property ("playhead", buf);
2479         snprintf (buf, sizeof (buf), "%" PRIi64, leftmost_frame);
2480         node->add_property ("left-frame", buf);
2481         snprintf (buf, sizeof (buf), "%f", vertical_adjustment.get_value ());
2482         node->add_property ("y-origin", buf);
2483
2484         node->add_property ("show-measures", _show_measures ? "yes" : "no");
2485         node->add_property ("maximised", _maximised ? "yes" : "no");
2486         node->add_property ("follow-playhead", _follow_playhead ? "yes" : "no");
2487         node->add_property ("stationary-playhead", _stationary_playhead ? "yes" : "no");
2488         node->add_property ("region-list-sort-type", enum_2_string (_regions->sort_type ()));
2489         node->add_property ("mouse-mode", enum2str(mouse_mode));
2490         node->add_property ("internal-edit", _internal_editing ? "yes" : "no");
2491         node->add_property ("join-object-range", smart_mode_action->get_active () ? "yes" : "no");
2492
2493         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2494         if (act) {
2495                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2496                 node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
2497         }
2498
2499         act = ActionManager::get_action (X_("Editor"), X_("show-editor-list"));
2500         if (act) {
2501                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2502                 node->add_property (X_("show-editor-list"), tact->get_active() ? "yes" : "no");
2503         }
2504
2505         snprintf (buf, sizeof (buf), "%d", _the_notebook.get_current_page ());
2506         node->add_property (X_("editor-list-page"), buf);
2507
2508         if (button_bindings) {
2509                 XMLNode* bb = new XMLNode (X_("Buttons"));
2510                 button_bindings->save (*bb);
2511                 node->add_child_nocopy (*bb);
2512         }
2513
2514         node->add_property (X_("show-marker-lines"), _show_marker_lines ? "yes" : "no");
2515
2516         node->add_child_nocopy (selection->get_state ());
2517         node->add_child_nocopy (_regions->get_state ());
2518
2519         snprintf (buf, sizeof (buf), "%" PRId64, nudge_clock->current_duration());
2520         node->add_property ("nudge-clock-value", buf);
2521
2522         return *node;
2523 }
2524
2525
2526
2527 /** @param y y offset from the top of all trackviews.
2528  *  @return pair: TimeAxisView that y is over, layer index.
2529  *  TimeAxisView may be 0.  Layer index is the layer number if the TimeAxisView is valid and is
2530  *  in stacked or expanded region display mode, otherwise 0.
2531  */
2532 std::pair<TimeAxisView *, double>
2533 Editor::trackview_by_y_position (double y)
2534 {
2535         for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
2536
2537                 std::pair<TimeAxisView*, double> const r = (*iter)->covers_y_position (y);
2538                 if (r.first) {
2539                         return r;
2540                 }
2541         }
2542
2543         return std::make_pair ( (TimeAxisView *) 0, 0);
2544 }
2545
2546 /** Snap a position to the grid, if appropriate, taking into account current
2547  *  grid settings and also the state of any snap modifier keys that may be pressed.
2548  *  @param start Position to snap.
2549  *  @param event Event to get current key modifier information from, or 0.
2550  */
2551 void
2552 Editor::snap_to_with_modifier (framepos_t& start, GdkEvent const * event, int32_t direction, bool for_mark)
2553 {
2554         if (!_session || !event) {
2555                 return;
2556         }
2557
2558         if (Keyboard::modifier_state_contains (event->button.state, Keyboard::snap_modifier())) {
2559                 if (_snap_mode == SnapOff) {
2560                         snap_to_internal (start, direction, for_mark);
2561                 }
2562         } else {
2563                 if (_snap_mode != SnapOff) {
2564                         snap_to_internal (start, direction, for_mark);
2565                 }
2566         }
2567 }
2568
2569 void
2570 Editor::snap_to (framepos_t& start, int32_t direction, bool for_mark)
2571 {
2572         if (!_session || _snap_mode == SnapOff) {
2573                 return;
2574         }
2575
2576         snap_to_internal (start, direction, for_mark);
2577 }
2578
2579 void
2580 Editor::timecode_snap_to_internal (framepos_t& start, int32_t direction, bool /*for_mark*/)
2581 {
2582         const framepos_t one_timecode_second = (framepos_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame());
2583         framepos_t one_timecode_minute = (framepos_t)(rint(_session->timecode_frames_per_second()) * _session->frames_per_timecode_frame() * 60);
2584
2585         switch (_snap_type) {
2586         case SnapToTimecodeFrame:
2587                 if (((direction == 0) && (fmod((double)start, (double)_session->frames_per_timecode_frame()) > (_session->frames_per_timecode_frame() / 2))) || (direction > 0)) {
2588                         start = (framepos_t) (ceil ((double) start / _session->frames_per_timecode_frame()) * _session->frames_per_timecode_frame());
2589                 } else {
2590                         start = (framepos_t) (floor ((double) start / _session->frames_per_timecode_frame()) *  _session->frames_per_timecode_frame());
2591                 }
2592                 break;
2593
2594         case SnapToTimecodeSeconds:
2595                 if (_session->config.get_timecode_offset_negative()) {
2596                         start += _session->config.get_timecode_offset ();
2597                 } else {
2598                         start -= _session->config.get_timecode_offset ();
2599                 }
2600                 if (((direction == 0) && (start % one_timecode_second > one_timecode_second / 2)) || direction > 0) {
2601                         start = (framepos_t) ceil ((double) start / one_timecode_second) * one_timecode_second;
2602                 } else {
2603                         start = (framepos_t) floor ((double) start / one_timecode_second) * one_timecode_second;
2604                 }
2605
2606                 if (_session->config.get_timecode_offset_negative()) {
2607                         start -= _session->config.get_timecode_offset ();
2608                 } else {
2609                         start += _session->config.get_timecode_offset ();
2610                 }
2611                 break;
2612
2613         case SnapToTimecodeMinutes:
2614                 if (_session->config.get_timecode_offset_negative()) {
2615                         start += _session->config.get_timecode_offset ();
2616                 } else {
2617                         start -= _session->config.get_timecode_offset ();
2618                 }
2619                 if (((direction == 0) && (start % one_timecode_minute > one_timecode_minute / 2)) || direction > 0) {
2620                         start = (framepos_t) ceil ((double) start / one_timecode_minute) * one_timecode_minute;
2621                 } else {
2622                         start = (framepos_t) floor ((double) start / one_timecode_minute) * one_timecode_minute;
2623                 }
2624                 if (_session->config.get_timecode_offset_negative()) {
2625                         start -= _session->config.get_timecode_offset ();
2626                 } else {
2627                         start += _session->config.get_timecode_offset ();
2628                 }
2629                 break;
2630         default:
2631                 fatal << "Editor::smpte_snap_to_internal() called with non-timecode snap type!" << endmsg;
2632                 /*NOTREACHED*/
2633         }
2634 }
2635
2636 void
2637 Editor::snap_to_internal (framepos_t& start, int32_t direction, bool for_mark)
2638 {
2639         const framepos_t one_second = _session->frame_rate();
2640         const framepos_t one_minute = _session->frame_rate() * 60;
2641         framepos_t presnap = start;
2642         framepos_t before;
2643         framepos_t after;
2644
2645         switch (_snap_type) {
2646         case SnapToTimecodeFrame:
2647         case SnapToTimecodeSeconds:
2648         case SnapToTimecodeMinutes:
2649                 return timecode_snap_to_internal (start, direction, for_mark);
2650
2651         case SnapToCDFrame:
2652                 if (((direction == 0) && (start % (one_second/75) > (one_second/75) / 2)) || (direction > 0)) {
2653                         start = (framepos_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
2654                 } else {
2655                         start = (framepos_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
2656                 }
2657                 break;
2658
2659         case SnapToSeconds:
2660                 if (((direction == 0) && (start % one_second > one_second / 2)) || (direction > 0)) {
2661                         start = (framepos_t) ceil ((double) start / one_second) * one_second;
2662                 } else {
2663                         start = (framepos_t) floor ((double) start / one_second) * one_second;
2664                 }
2665                 break;
2666
2667         case SnapToMinutes:
2668                 if (((direction == 0) && (start % one_minute > one_minute / 2)) || (direction > 0)) {
2669                         start = (framepos_t) ceil ((double) start / one_minute) * one_minute;
2670                 } else {
2671                         start = (framepos_t) floor ((double) start / one_minute) * one_minute;
2672                 }
2673                 break;
2674
2675         case SnapToBar:
2676                 start = _session->tempo_map().round_to_bar (start, direction);
2677                 break;
2678
2679         case SnapToBeat:
2680                 start = _session->tempo_map().round_to_beat (start, direction);
2681                 break;
2682
2683         case SnapToBeatDiv128:
2684                 start = _session->tempo_map().round_to_beat_subdivision (start, 128, direction);
2685                 break;
2686         case SnapToBeatDiv64:
2687                 start = _session->tempo_map().round_to_beat_subdivision (start, 64, direction);
2688                 break;
2689         case SnapToBeatDiv32:
2690                 start = _session->tempo_map().round_to_beat_subdivision (start, 32, direction);
2691                 break;
2692         case SnapToBeatDiv28:
2693                 start = _session->tempo_map().round_to_beat_subdivision (start, 28, direction);
2694                 break;
2695         case SnapToBeatDiv24:
2696                 start = _session->tempo_map().round_to_beat_subdivision (start, 24, direction);
2697                 break;
2698         case SnapToBeatDiv20:
2699                 start = _session->tempo_map().round_to_beat_subdivision (start, 20, direction);
2700                 break;
2701         case SnapToBeatDiv16:
2702                 start = _session->tempo_map().round_to_beat_subdivision (start, 16, direction);
2703                 break;
2704         case SnapToBeatDiv14:
2705                 start = _session->tempo_map().round_to_beat_subdivision (start, 14, direction);
2706                 break;
2707         case SnapToBeatDiv12:
2708                 start = _session->tempo_map().round_to_beat_subdivision (start, 12, direction);
2709                 break;
2710         case SnapToBeatDiv10:
2711                 start = _session->tempo_map().round_to_beat_subdivision (start, 10, direction);
2712                 break;
2713         case SnapToBeatDiv8:
2714                 start = _session->tempo_map().round_to_beat_subdivision (start, 8, direction);
2715                 break;
2716         case SnapToBeatDiv7:
2717                 start = _session->tempo_map().round_to_beat_subdivision (start, 7, direction);
2718                 break;
2719         case SnapToBeatDiv6:
2720                 start = _session->tempo_map().round_to_beat_subdivision (start, 6, direction);
2721                 break;
2722         case SnapToBeatDiv5:
2723                 start = _session->tempo_map().round_to_beat_subdivision (start, 5, direction);
2724                 break;
2725         case SnapToBeatDiv4:
2726                 start = _session->tempo_map().round_to_beat_subdivision (start, 4, direction);
2727                 break;
2728         case SnapToBeatDiv3:
2729                 start = _session->tempo_map().round_to_beat_subdivision (start, 3, direction);
2730                 break;
2731         case SnapToBeatDiv2:
2732                 start = _session->tempo_map().round_to_beat_subdivision (start, 2, direction);
2733                 break;
2734
2735         case SnapToMark:
2736                 if (for_mark) {
2737                         return;
2738                 }
2739
2740                 _session->locations()->marks_either_side (start, before, after);
2741
2742                 if (before == max_framepos && after == max_framepos) {
2743                         /* No marks to snap to, so just don't snap */
2744                         return;
2745                 } else if (before == max_framepos) {
2746                         start = after;
2747                 } else if (after == max_framepos) {
2748                         start = before;
2749                 } else if (before != max_framepos && after != max_framepos) {
2750                         /* have before and after */
2751                         if ((start - before) < (after - start)) {
2752                                 start = before;
2753                         } else {
2754                                 start = after;
2755                         }
2756                 }
2757
2758                 break;
2759
2760         case SnapToRegionStart:
2761         case SnapToRegionEnd:
2762         case SnapToRegionSync:
2763         case SnapToRegionBoundary:
2764                 if (!region_boundary_cache.empty()) {
2765
2766                         vector<framepos_t>::iterator prev = region_boundary_cache.end ();
2767                         vector<framepos_t>::iterator next = region_boundary_cache.end ();
2768
2769                         if (direction > 0) {
2770                                 next = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2771                         } else {
2772                                 next = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2773                         }
2774
2775                         if (next != region_boundary_cache.begin ()) {
2776                                 prev = next;
2777                                 prev--;
2778                         }
2779
2780                         framepos_t const p = (prev == region_boundary_cache.end()) ? region_boundary_cache.front () : *prev;
2781                         framepos_t const n = (next == region_boundary_cache.end()) ? region_boundary_cache.back () : *next;
2782
2783                         if (start > (p + n) / 2) {
2784                                 start = n;
2785                         } else {
2786                                 start = p;
2787                         }
2788                 }
2789                 break;
2790         }
2791
2792         switch (_snap_mode) {
2793         case SnapNormal:
2794                 return;
2795
2796         case SnapMagnetic:
2797
2798                 if (presnap > start) {
2799                         if (presnap > (start + unit_to_frame(snap_threshold))) {
2800                                 start = presnap;
2801                         }
2802
2803                 } else if (presnap < start) {
2804                         if (presnap < (start - unit_to_frame(snap_threshold))) {
2805                                 start = presnap;
2806                         }
2807                 }
2808
2809         default:
2810                 /* handled at entry */
2811                 return;
2812
2813         }
2814 }
2815
2816
2817 void
2818 Editor::setup_toolbar ()
2819 {
2820         HBox* mode_box = manage(new HBox);
2821         mode_box->set_border_width (2);
2822         mode_box->set_spacing(4);
2823
2824         HBox* mouse_mode_box = manage (new HBox);
2825         HBox* mouse_mode_hbox1 = manage (new HBox);
2826         HBox* mouse_mode_hbox2 = manage (new HBox);
2827         VBox* mouse_mode_vbox1 = manage (new VBox);
2828         VBox* mouse_mode_vbox2 = manage (new VBox);
2829         Alignment* mouse_mode_align1 = manage (new Alignment);
2830         Alignment* mouse_mode_align2 = manage (new Alignment);
2831
2832         Glib::RefPtr<SizeGroup> mouse_mode_size_group = SizeGroup::create (SIZE_GROUP_BOTH);
2833         mouse_mode_size_group->add_widget (mouse_move_button);
2834         mouse_mode_size_group->add_widget (mouse_select_button);
2835         mouse_mode_size_group->add_widget (mouse_zoom_button);
2836         mouse_mode_size_group->add_widget (mouse_gain_button);
2837         mouse_mode_size_group->add_widget (mouse_timefx_button);
2838         mouse_mode_size_group->add_widget (mouse_audition_button);
2839         mouse_mode_size_group->add_widget (mouse_draw_button);
2840         mouse_mode_size_group->add_widget (internal_edit_button);
2841
2842         /* make them just a bit bigger */
2843         mouse_move_button.set_size_request (-1, 25);
2844
2845         smart_mode_joiner = manage (new ButtonJoiner ("mouse mode button", mouse_move_button, mouse_select_button, true));
2846         smart_mode_joiner->set_related_action (smart_mode_action);
2847
2848         mouse_mode_hbox2->set_spacing (2);
2849         mouse_mode_box->set_spacing (2);
2850
2851         mouse_mode_hbox1->pack_start (*smart_mode_joiner, false, false);
2852         mouse_mode_hbox2->pack_start (mouse_zoom_button, false, false);
2853         mouse_mode_hbox2->pack_start (mouse_gain_button, false, false);
2854         mouse_mode_hbox2->pack_start (mouse_timefx_button, false, false);
2855         mouse_mode_hbox2->pack_start (mouse_audition_button, false, false);
2856         mouse_mode_hbox2->pack_start (mouse_draw_button, false, false);
2857         mouse_mode_hbox2->pack_start (internal_edit_button, false, false, 8);
2858
2859         mouse_mode_vbox1->pack_start (*mouse_mode_hbox1, false, false);
2860         mouse_mode_vbox2->pack_start (*mouse_mode_hbox2, false, false);
2861
2862         mouse_mode_align1->add (*mouse_mode_vbox1);
2863         mouse_mode_align1->set (0.5, 1.0, 0.0, 0.0);
2864         mouse_mode_align2->add (*mouse_mode_vbox2);
2865         mouse_mode_align2->set (0.5, 1.0, 0.0, 0.0);
2866
2867         mouse_mode_box->pack_start (*mouse_mode_align1, false, false);
2868         mouse_mode_box->pack_start (*mouse_mode_align2, false, false);
2869
2870         edit_mode_strings.push_back (edit_mode_to_string (Slide));
2871         if (!Profile->get_sae()) {
2872                 edit_mode_strings.push_back (edit_mode_to_string (Splice));
2873         }
2874         edit_mode_strings.push_back (edit_mode_to_string (Lock));
2875
2876         edit_mode_selector.set_name ("EditModeSelector");
2877         set_popdown_strings (edit_mode_selector, edit_mode_strings);
2878         edit_mode_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::edit_mode_selection_done));
2879
2880         mode_box->pack_start (edit_mode_selector, false, false);
2881         mode_box->pack_start (*mouse_mode_box, false, false);
2882
2883         _mouse_mode_tearoff = manage (new TearOff (*mode_box));
2884         _mouse_mode_tearoff->set_name ("MouseModeBase");
2885         _mouse_mode_tearoff->tearoff_window().signal_key_press_event().connect (sigc::bind (sigc::ptr_fun (relay_key_press), &_mouse_mode_tearoff->tearoff_window()), false);
2886
2887         if (Profile->get_sae()) {
2888                 _mouse_mode_tearoff->set_can_be_torn_off (false);
2889         }
2890
2891         _mouse_mode_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2892                                                          &_mouse_mode_tearoff->tearoff_window()));
2893         _mouse_mode_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2894                                                          &_mouse_mode_tearoff->tearoff_window(), 1));
2895         _mouse_mode_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2896                                                          &_mouse_mode_tearoff->tearoff_window()));
2897         _mouse_mode_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2898                                                           &_mouse_mode_tearoff->tearoff_window(), 1));
2899
2900         /* Zoom */
2901
2902         _zoom_box.set_spacing (2);
2903         _zoom_box.set_border_width (2);
2904
2905         RefPtr<Action> act;
2906
2907         zoom_in_button.set_name ("zoom button");
2908         zoom_in_button.add (*(manage (new Image (::get_icon ("zoom_in")))));
2909         act = ActionManager::get_action (X_("Editor"), X_("temporal-zoom-in"));
2910         act->connect_proxy (zoom_in_button);
2911
2912         zoom_out_button.set_name ("zoom button");
2913         zoom_out_button.add (*(manage (new Image (::get_icon ("zoom_out")))));
2914         act = ActionManager::get_action (X_("Editor"), X_("temporal-zoom-out"));
2915         act->connect_proxy (zoom_out_button);
2916
2917         zoom_out_full_button.set_name ("zoom button");
2918         zoom_out_full_button.add (*(manage (new Image (::get_icon ("zoom_full")))));
2919         act = ActionManager::get_action (X_("Editor"), X_("zoom-to-session"));
2920         act->connect_proxy (zoom_out_full_button);
2921
2922         zoom_focus_selector.set_name ("ZoomFocusSelector");
2923         set_popdown_strings (zoom_focus_selector, zoom_focus_strings);
2924         zoom_focus_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::zoom_focus_selection_done));
2925
2926         _zoom_box.pack_start (zoom_out_button, false, false);
2927         _zoom_box.pack_start (zoom_in_button, false, false);
2928         _zoom_box.pack_start (zoom_out_full_button, false, false);
2929
2930         _zoom_box.pack_start (zoom_focus_selector, false, false);
2931
2932         /* Track zoom buttons */
2933         tav_expand_button.set_name ("TrackHeightButton");
2934         tav_expand_button.set_size_request (-1, 20);
2935         tav_expand_button.add (*(manage (new Image (::get_icon ("tav_exp")))));
2936         act = ActionManager::get_action (X_("Editor"), X_("expand-tracks"));
2937         act->connect_proxy (tav_expand_button);
2938
2939         tav_shrink_button.set_name ("TrackHeightButton");
2940         tav_shrink_button.set_size_request (-1, 20);
2941         tav_shrink_button.add (*(manage (new Image (::get_icon ("tav_shrink")))));
2942         act = ActionManager::get_action (X_("Editor"), X_("shrink-tracks"));
2943         act->connect_proxy (tav_shrink_button);
2944
2945         _zoom_box.pack_start (tav_shrink_button);
2946         _zoom_box.pack_start (tav_expand_button);
2947
2948         _zoom_tearoff = manage (new TearOff (_zoom_box));
2949
2950         _zoom_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2951                                                    &_zoom_tearoff->tearoff_window()));
2952         _zoom_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2953                                                    &_zoom_tearoff->tearoff_window(), 0));
2954         _zoom_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2955                                                    &_zoom_tearoff->tearoff_window()));
2956         _zoom_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2957                                                     &_zoom_tearoff->tearoff_window(), 0));
2958
2959         snap_box.set_spacing (1);
2960         snap_box.set_border_width (2);
2961
2962         snap_type_selector.set_name ("SnapTypeSelector");
2963         set_popdown_strings (snap_type_selector, snap_type_strings);
2964         snap_type_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::snap_type_selection_done));
2965
2966         snap_mode_selector.set_name ("SnapModeSelector");
2967         set_popdown_strings (snap_mode_selector, snap_mode_strings);
2968         snap_mode_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::snap_mode_selection_done));
2969
2970         edit_point_selector.set_name ("EditPointSelector");
2971         set_popdown_strings (edit_point_selector, edit_point_strings);
2972         edit_point_selector.signal_changed().connect (sigc::mem_fun(*this, &Editor::edit_point_selection_done));
2973
2974         snap_box.pack_start (snap_mode_selector, false, false);
2975         snap_box.pack_start (snap_type_selector, false, false);
2976         snap_box.pack_start (edit_point_selector, false, false);
2977
2978         /* Nudge */
2979
2980         HBox *nudge_box = manage (new HBox);
2981         nudge_box->set_spacing (2);
2982         nudge_box->set_border_width (2);
2983
2984         nudge_forward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_forward_release), false);
2985         nudge_backward_button.signal_button_release_event().connect (sigc::mem_fun(*this, &Editor::nudge_backward_release), false);
2986
2987         nudge_box->pack_start (nudge_backward_button, false, false);
2988         nudge_box->pack_start (nudge_forward_button, false, false);
2989         nudge_box->pack_start (*nudge_clock, false, false);
2990
2991
2992         /* Pack everything in... */
2993
2994         HBox* hbox = manage (new HBox);
2995         hbox->set_spacing(10);
2996
2997         _tools_tearoff = manage (new TearOff (*hbox));
2998         _tools_tearoff->set_name ("MouseModeBase");
2999         _tools_tearoff->tearoff_window().signal_key_press_event().connect (sigc::bind (sigc::ptr_fun (relay_key_press), &_tools_tearoff->tearoff_window()), false);
3000
3001         if (Profile->get_sae()) {
3002                 _tools_tearoff->set_can_be_torn_off (false);
3003         }
3004
3005         _tools_tearoff->Detach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
3006                                                     &_tools_tearoff->tearoff_window()));
3007         _tools_tearoff->Attach.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
3008                                                     &_tools_tearoff->tearoff_window(), 0));
3009         _tools_tearoff->Hidden.connect (sigc::bind (sigc::mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
3010                                                     &_tools_tearoff->tearoff_window()));
3011         _tools_tearoff->Visible.connect (sigc::bind (sigc::mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
3012                                                      &_tools_tearoff->tearoff_window(), 0));
3013
3014         toolbar_hbox.set_spacing (10);
3015         toolbar_hbox.set_border_width (1);
3016
3017         toolbar_hbox.pack_start (*_mouse_mode_tearoff, false, false);
3018         toolbar_hbox.pack_start (*_zoom_tearoff, false, false);
3019         toolbar_hbox.pack_start (*_tools_tearoff, false, false);
3020
3021         hbox->pack_start (snap_box, false, false);
3022         if (!Profile->get_small_screen()) {
3023                 hbox->pack_start (*nudge_box, false, false);
3024         } else {
3025                 ARDOUR_UI::instance()->editor_transport_box().pack_start (*nudge_box, false, false);
3026         }
3027         hbox->pack_start (panic_box, false, false);
3028
3029         hbox->show_all ();
3030
3031         toolbar_base.set_name ("ToolBarBase");
3032         toolbar_base.add (toolbar_hbox);
3033
3034         _toolbar_viewport.add (toolbar_base);
3035         /* stick to the required height but allow width to vary if there's not enough room */
3036         _toolbar_viewport.set_size_request (1, -1);
3037
3038         toolbar_frame.set_shadow_type (SHADOW_OUT);
3039         toolbar_frame.set_name ("BaseFrame");
3040         toolbar_frame.add (_toolbar_viewport);
3041 }
3042
3043 void
3044 Editor::setup_tooltips ()
3045 {
3046         ARDOUR_UI::instance()->set_tip (mouse_move_button, _("Select/Move Objects"));
3047         ARDOUR_UI::instance()->set_tip (mouse_select_button, _("Select/Move Ranges"));
3048         ARDOUR_UI::instance()->set_tip (mouse_draw_button, _("Draw/Edit MIDI Notes"));
3049         ARDOUR_UI::instance()->set_tip (mouse_gain_button, _("Draw Region Gain"));
3050         ARDOUR_UI::instance()->set_tip (mouse_zoom_button, _("Select Zoom Range"));
3051         ARDOUR_UI::instance()->set_tip (mouse_timefx_button, _("Stretch/Shrink Regions and MIDI Notes"));
3052         ARDOUR_UI::instance()->set_tip (mouse_audition_button, _("Listen to Specific Regions"));
3053         ARDOUR_UI::instance()->set_tip (smart_mode_joiner, _("Smart Mode (Select/Move Objects + Ranges)"));
3054         ARDOUR_UI::instance()->set_tip (internal_edit_button, _("Note Level Editing"));
3055         ARDOUR_UI::instance()->set_tip (*_group_tabs, _("Groups: click to (de)activate\nContext-click for other operations"));
3056         ARDOUR_UI::instance()->set_tip (nudge_forward_button, _("Nudge Region/Selection Later"));
3057         ARDOUR_UI::instance()->set_tip (nudge_backward_button, _("Nudge Region/Selection Earlier"));
3058         ARDOUR_UI::instance()->set_tip (zoom_in_button, _("Zoom In"));
3059         ARDOUR_UI::instance()->set_tip (zoom_out_button, _("Zoom Out"));
3060         ARDOUR_UI::instance()->set_tip (zoom_out_full_button, _("Zoom to Session"));
3061         ARDOUR_UI::instance()->set_tip (zoom_focus_selector, _("Zoom focus"));
3062         ARDOUR_UI::instance()->set_tip (tav_expand_button, _("Expand Tracks"));
3063         ARDOUR_UI::instance()->set_tip (tav_shrink_button, _("Shrink Tracks"));
3064         ARDOUR_UI::instance()->set_tip (snap_type_selector, _("Snap/Grid Units"));
3065         ARDOUR_UI::instance()->set_tip (snap_mode_selector, _("Snap/Grid Mode"));
3066         ARDOUR_UI::instance()->set_tip (edit_point_selector, _("Edit point"));
3067         ARDOUR_UI::instance()->set_tip (edit_mode_selector, _("Edit Mode"));
3068         ARDOUR_UI::instance()->set_tip (nudge_clock, _("Nudge Clock\n(controls distance used to nudge regions and selections)"));
3069 }
3070
3071 int
3072 Editor::convert_drop_to_paths (
3073                 vector<string>&                paths,
3074                 const RefPtr<Gdk::DragContext>& /*context*/,
3075                 gint                            /*x*/,
3076                 gint                            /*y*/,
3077                 const SelectionData&            data,
3078                 guint                           /*info*/,
3079                 guint                           /*time*/)
3080 {
3081         if (_session == 0) {
3082                 return -1;
3083         }
3084
3085         vector<string> uris = data.get_uris();
3086
3087         if (uris.empty()) {
3088
3089                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
3090                    are actually URI lists. So do it by hand.
3091                 */
3092
3093                 if (data.get_target() != "text/plain") {
3094                         return -1;
3095                 }
3096
3097                 /* Parse the "uri-list" format that Nautilus provides,
3098                    where each pathname is delimited by \r\n.
3099
3100                    THERE MAY BE NO NULL TERMINATING CHAR!!!
3101                 */
3102
3103                 string txt = data.get_text();
3104                 const char* p;
3105                 const char* q;
3106
3107                 p = (const char *) malloc (txt.length() + 1);
3108                 txt.copy (const_cast<char *> (p), txt.length(), 0);
3109                 const_cast<char*>(p)[txt.length()] = '\0';
3110
3111                 while (p)
3112                 {
3113                         if (*p != '#')
3114                         {
3115                                 while (g_ascii_isspace (*p))
3116                                         p++;
3117
3118                                 q = p;
3119                                 while (*q && (*q != '\n') && (*q != '\r')) {
3120                                         q++;
3121                                 }
3122
3123                                 if (q > p)
3124                                 {
3125                                         q--;
3126                                         while (q > p && g_ascii_isspace (*q))
3127                                                 q--;
3128
3129                                         if (q > p)
3130                                         {
3131                                                 uris.push_back (string (p, q - p + 1));
3132                                         }
3133                                 }
3134                         }
3135                         p = strchr (p, '\n');
3136                         if (p)
3137                                 p++;
3138                 }
3139
3140                 free ((void*)p);
3141
3142                 if (uris.empty()) {
3143                         return -1;
3144                 }
3145         }
3146
3147         for (vector<string>::iterator i = uris.begin(); i != uris.end(); ++i) {
3148
3149                 if ((*i).substr (0,7) == "file://") {
3150
3151                         string const p = PBD::url_decode (*i);
3152
3153                         // scan forward past three slashes
3154
3155                         string::size_type slashcnt = 0;
3156                         string::size_type n = 0;
3157                         string::const_iterator x = p.begin();
3158
3159                         while (slashcnt < 3 && x != p.end()) {
3160                                 if ((*x) == '/') {
3161                                         slashcnt++;
3162                                 } else if (slashcnt == 3) {
3163                                         break;
3164                                 }
3165                                 ++n;
3166                                 ++x;
3167                         }
3168
3169                         if (slashcnt != 3 || x == p.end()) {
3170                                 error << _("malformed URL passed to drag-n-drop code") << endmsg;
3171                                 continue;
3172                         }
3173
3174                         paths.push_back (p.substr (n - 1));
3175                 }
3176         }
3177
3178         return 0;
3179 }
3180
3181 void
3182 Editor::new_tempo_section ()
3183
3184 {
3185 }
3186
3187 void
3188 Editor::map_transport_state ()
3189 {
3190         ENSURE_GUI_THREAD (*this, &Editor::map_transport_state);
3191
3192         if (_session && _session->transport_stopped()) {
3193                 have_pending_keyboard_selection = false;
3194         }
3195
3196         update_loop_range_view (true);
3197 }
3198
3199 /* UNDO/REDO */
3200
3201 void
3202 Editor::begin_reversible_command (string name)
3203 {
3204         if (_session) {
3205                 _session->begin_reversible_command (name);
3206         }
3207 }
3208
3209 void
3210 Editor::begin_reversible_command (GQuark q)
3211 {
3212         if (_session) {
3213                 _session->begin_reversible_command (q);
3214         }
3215 }
3216
3217 void
3218 Editor::commit_reversible_command ()
3219 {
3220         if (_session) {
3221                 _session->commit_reversible_command ();
3222         }
3223 }
3224
3225 void
3226 Editor::history_changed ()
3227 {
3228         string label;
3229
3230         if (undo_action && _session) {
3231                 if (_session->undo_depth() == 0) {
3232                         label = S_("Command|Undo");
3233                 } else {
3234                         label = string_compose(S_("Command|Undo (%1)"), _session->next_undo());
3235                 }
3236                 undo_action->property_label() = label;
3237         }
3238
3239         if (redo_action && _session) {
3240                 if (_session->redo_depth() == 0) {
3241                         label = _("Redo");
3242                 } else {
3243                         label = string_compose(_("Redo (%1)"), _session->next_redo());
3244                 }
3245                 redo_action->property_label() = label;
3246         }
3247 }
3248
3249 void
3250 Editor::duplicate_range (bool with_dialog)
3251 {
3252         float times = 1.0f;
3253
3254         if (mouse_mode == MouseRange) {
3255                 if (selection->time.length() == 0) {
3256                         return;
3257                 }
3258         }
3259
3260         RegionSelection rs = get_regions_from_selection_and_entered ();
3261
3262         if (mouse_mode != MouseRange && rs.empty()) {
3263                 return;
3264         }
3265
3266         if (with_dialog) {
3267
3268                 ArdourDialog win (_("Duplicate"));
3269                 Label label (_("Number of duplications:"));
3270                 Adjustment adjustment (1.0, 1.0, 1000000.0, 1.0, 5.0);
3271                 SpinButton spinner (adjustment, 0.0, 1);
3272                 HBox hbox;
3273
3274                 win.get_vbox()->set_spacing (12);
3275                 win.get_vbox()->pack_start (hbox);
3276                 hbox.set_border_width (6);
3277                 hbox.pack_start (label, PACK_EXPAND_PADDING, 12);
3278
3279                 /* dialogs have ::add_action_widget() but that puts the spinner in the wrong
3280                    place, visually. so do this by hand.
3281                 */
3282
3283                 hbox.pack_start (spinner, PACK_EXPAND_PADDING, 12);
3284                 spinner.signal_activate().connect (sigc::bind (sigc::mem_fun (win, &ArdourDialog::response), RESPONSE_ACCEPT));
3285                 spinner.grab_focus();
3286
3287                 hbox.show ();
3288                 label.show ();
3289                 spinner.show ();
3290
3291                 win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
3292                 win.add_button (_("Duplicate"), RESPONSE_ACCEPT);
3293                 win.set_default_response (RESPONSE_ACCEPT);
3294
3295                 win.set_position (WIN_POS_MOUSE);
3296
3297                 spinner.grab_focus ();
3298
3299                 switch (win.run ()) {
3300                 case RESPONSE_ACCEPT:
3301                         break;
3302                 default:
3303                         return;
3304                 }
3305
3306                 times = adjustment.get_value();
3307         }
3308
3309         if (mouse_mode == MouseRange) {
3310                 duplicate_selection (times);
3311         } else {
3312                 duplicate_some_regions (rs, times);
3313         }
3314 }
3315
3316 void
3317 Editor::set_edit_mode (EditMode m)
3318 {
3319         Config->set_edit_mode (m);
3320 }
3321
3322 void
3323 Editor::cycle_edit_mode ()
3324 {
3325         switch (Config->get_edit_mode()) {
3326         case Slide:
3327                 if (Profile->get_sae()) {
3328                         Config->set_edit_mode (Lock);
3329                 } else {
3330                         Config->set_edit_mode (Splice);
3331                 }
3332                 break;
3333         case Splice:
3334                 Config->set_edit_mode (Lock);
3335                 break;
3336         case Lock:
3337                 Config->set_edit_mode (Slide);
3338                 break;
3339         }
3340 }
3341
3342 void
3343 Editor::edit_mode_selection_done ()
3344 {
3345         string s = edit_mode_selector.get_active_text ();
3346
3347         if (!s.empty()) {
3348                 Config->set_edit_mode (string_to_edit_mode (s));
3349         }
3350 }
3351
3352 void
3353 Editor::snap_type_selection_done ()
3354 {
3355         string choice = snap_type_selector.get_active_text();
3356         SnapType snaptype = SnapToBeat;
3357
3358         if (choice == _("Beats/2")) {
3359                 snaptype = SnapToBeatDiv2;
3360         } else if (choice == _("Beats/3")) {
3361                 snaptype = SnapToBeatDiv3;
3362         } else if (choice == _("Beats/4")) {
3363                 snaptype = SnapToBeatDiv4;
3364         } else if (choice == _("Beats/5")) {
3365                 snaptype = SnapToBeatDiv5;
3366         } else if (choice == _("Beats/6")) {
3367                 snaptype = SnapToBeatDiv6;
3368         } else if (choice == _("Beats/7")) {
3369                 snaptype = SnapToBeatDiv7;
3370         } else if (choice == _("Beats/8")) {
3371                 snaptype = SnapToBeatDiv8;
3372         } else if (choice == _("Beats/10")) {
3373                 snaptype = SnapToBeatDiv10;
3374         } else if (choice == _("Beats/12")) {
3375                 snaptype = SnapToBeatDiv12;
3376         } else if (choice == _("Beats/14")) {
3377                 snaptype = SnapToBeatDiv14;
3378         } else if (choice == _("Beats/16")) {
3379                 snaptype = SnapToBeatDiv16;
3380         } else if (choice == _("Beats/20")) {
3381                 snaptype = SnapToBeatDiv20;
3382         } else if (choice == _("Beats/24")) {
3383                 snaptype = SnapToBeatDiv24;
3384         } else if (choice == _("Beats/28")) {
3385                 snaptype = SnapToBeatDiv28;
3386         } else if (choice == _("Beats/32")) {
3387                 snaptype = SnapToBeatDiv32;
3388         } else if (choice == _("Beats/64")) {
3389                 snaptype = SnapToBeatDiv64;
3390         } else if (choice == _("Beats/128")) {
3391                 snaptype = SnapToBeatDiv128;
3392         } else if (choice == _("Beats")) {
3393                 snaptype = SnapToBeat;
3394         } else if (choice == _("Bars")) {
3395                 snaptype = SnapToBar;
3396         } else if (choice == _("Marks")) {
3397                 snaptype = SnapToMark;
3398         } else if (choice == _("Region starts")) {
3399                 snaptype = SnapToRegionStart;
3400         } else if (choice == _("Region ends")) {
3401                 snaptype = SnapToRegionEnd;
3402         } else if (choice == _("Region bounds")) {
3403                 snaptype = SnapToRegionBoundary;
3404         } else if (choice == _("Region syncs")) {
3405                 snaptype = SnapToRegionSync;
3406         } else if (choice == _("CD Frames")) {
3407                 snaptype = SnapToCDFrame;
3408         } else if (choice == _("Timecode Frames")) {
3409                 snaptype = SnapToTimecodeFrame;
3410         } else if (choice == _("Timecode Seconds")) {
3411                 snaptype = SnapToTimecodeSeconds;
3412         } else if (choice == _("Timecode Minutes")) {
3413                 snaptype = SnapToTimecodeMinutes;
3414         } else if (choice == _("Seconds")) {
3415                 snaptype = SnapToSeconds;
3416         } else if (choice == _("Minutes")) {
3417                 snaptype = SnapToMinutes;
3418         }
3419
3420         RefPtr<RadioAction> ract = snap_type_action (snaptype);
3421         if (ract) {
3422                 ract->set_active ();
3423         }
3424 }
3425
3426 void
3427 Editor::snap_mode_selection_done ()
3428 {
3429         string choice = snap_mode_selector.get_active_text();
3430         SnapMode mode = SnapNormal;
3431
3432         if (choice == _("No Grid")) {
3433                 mode = SnapOff;
3434         } else if (choice == _("Grid")) {
3435                 mode = SnapNormal;
3436         } else if (choice == _("Magnetic")) {
3437                 mode = SnapMagnetic;
3438         }
3439
3440         RefPtr<RadioAction> ract = snap_mode_action (mode);
3441
3442         if (ract) {
3443                 ract->set_active (true);
3444         }
3445 }
3446
3447 void
3448 Editor::cycle_edit_point (bool with_marker)
3449 {
3450         switch (_edit_point) {
3451         case EditAtMouse:
3452                 set_edit_point_preference (EditAtPlayhead);
3453                 break;
3454         case EditAtPlayhead:
3455                 if (with_marker) {
3456                         set_edit_point_preference (EditAtSelectedMarker);
3457                 } else {
3458                         set_edit_point_preference (EditAtMouse);
3459                 }
3460                 break;
3461         case EditAtSelectedMarker:
3462                 set_edit_point_preference (EditAtMouse);
3463                 break;
3464         }
3465 }
3466
3467 void
3468 Editor::edit_point_selection_done ()
3469 {
3470         string choice = edit_point_selector.get_active_text();
3471         EditPoint ep = EditAtSelectedMarker;
3472
3473         if (choice == _("Marker")) {
3474                 set_edit_point_preference (EditAtSelectedMarker);
3475         } else if (choice == _("Playhead")) {
3476                 set_edit_point_preference (EditAtPlayhead);
3477         } else {
3478                 set_edit_point_preference (EditAtMouse);
3479         }
3480
3481         RefPtr<RadioAction> ract = edit_point_action (ep);
3482
3483         if (ract) {
3484                 ract->set_active (true);
3485         }
3486 }
3487
3488 void
3489 Editor::zoom_focus_selection_done ()
3490 {
3491         string choice = zoom_focus_selector.get_active_text();
3492         ZoomFocus focus_type = ZoomFocusLeft;
3493
3494         if (choice == _("Left")) {
3495                 focus_type = ZoomFocusLeft;
3496         } else if (choice == _("Right")) {
3497                 focus_type = ZoomFocusRight;
3498         } else if (choice == _("Center")) {
3499                 focus_type = ZoomFocusCenter;
3500         } else if (choice == _("Playhead")) {
3501                 focus_type = ZoomFocusPlayhead;
3502         } else if (choice == _("Mouse")) {
3503                 focus_type = ZoomFocusMouse;
3504         } else if (choice == _("Edit point")) {
3505                 focus_type = ZoomFocusEdit;
3506         }
3507
3508         RefPtr<RadioAction> ract = zoom_focus_action (focus_type);
3509
3510         if (ract) {
3511                 ract->set_active ();
3512         }
3513 }
3514
3515 bool
3516 Editor::edit_controls_button_release (GdkEventButton* ev)
3517 {
3518         if (Keyboard::is_context_menu_event (ev)) {
3519                 ARDOUR_UI::instance()->add_route (this);
3520         } else if (ev->button == 1) {
3521                 selection->clear_tracks ();
3522         }
3523
3524         return true;
3525 }
3526
3527 bool
3528 Editor::mouse_select_button_release (GdkEventButton* ev)
3529 {
3530         /* this handles just right-clicks */
3531
3532         if (ev->button != 3) {
3533                 return false;
3534         }
3535
3536         return true;
3537 }
3538
3539 void
3540 Editor::set_zoom_focus (ZoomFocus f)
3541 {
3542         string str = zoom_focus_strings[(int)f];
3543
3544         if (str != zoom_focus_selector.get_active_text()) {
3545                 zoom_focus_selector.set_active_text (str);
3546         }
3547
3548         if (zoom_focus != f) {
3549                 zoom_focus = f;
3550                 instant_save ();
3551         }
3552 }
3553
3554 void
3555 Editor::ensure_float (Window& win)
3556 {
3557         win.set_transient_for (*this);
3558 }
3559
3560 void
3561 Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
3562 {
3563         /* recover or initialize pane positions. do this here rather than earlier because
3564            we don't want the positions to change the child allocations, which they seem to do.
3565          */
3566
3567         int pos;
3568         XMLProperty* prop;
3569         char buf[32];
3570         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
3571
3572         enum Pane {
3573                 Horizontal = 0x1,
3574                 Vertical = 0x2
3575         };
3576
3577         static Pane done;
3578
3579         XMLNode* geometry = find_named_node (*node, "geometry");
3580
3581         if (which == static_cast<Paned*> (&edit_pane)) {
3582
3583                 if (done & Horizontal) {
3584                         return;
3585                 }
3586
3587                 if (geometry && (prop = geometry->property ("notebook-shrunk"))) {
3588                         _notebook_shrunk = string_is_affirmative (prop->value ());
3589                 }
3590
3591                 if (!geometry || (prop = geometry->property ("edit-horizontal-pane-pos")) == 0) {
3592                         /* initial allocation is 90% to canvas, 10% to notebook */
3593                         pos = (int) floor (alloc.get_width() * 0.90f);
3594                         snprintf (buf, sizeof(buf), "%d", pos);
3595                 } else {
3596                         pos = atoi (prop->value());
3597                 }
3598
3599                 if (GTK_WIDGET(edit_pane.gobj())->allocation.width > pos) {
3600                         edit_pane.set_position (pos);
3601                 }
3602
3603                 done = (Pane) (done | Horizontal);
3604
3605         } else if (which == static_cast<Paned*> (&editor_summary_pane)) {
3606
3607                 if (done & Vertical) {
3608                         return;
3609                 }
3610
3611                 if (!geometry || (prop = geometry->property ("edit-vertical-pane-pos")) == 0) {
3612                         /* initial allocation is 90% to canvas, 10% to summary */
3613                         pos = (int) floor (alloc.get_height() * 0.90f);
3614                         snprintf (buf, sizeof(buf), "%d", pos);
3615                 } else {
3616
3617                         pos = atoi (prop->value());
3618                 }
3619
3620                 if (GTK_WIDGET(editor_summary_pane.gobj())->allocation.height > pos) {
3621                         editor_summary_pane.set_position (pos);
3622                 }
3623
3624                 done = (Pane) (done | Vertical);
3625         }
3626 }
3627
3628 void
3629 Editor::detach_tearoff (Box* /*b*/, Window* /*w*/)
3630 {
3631         if ((_tools_tearoff->torn_off() || !_tools_tearoff->visible()) &&
3632             (_mouse_mode_tearoff->torn_off() || !_mouse_mode_tearoff->visible()) &&
3633             (_zoom_tearoff->torn_off() || !_zoom_tearoff->visible())) {
3634                 top_hbox.remove (toolbar_frame);
3635         }
3636 }
3637
3638 void
3639 Editor::reattach_tearoff (Box* /*b*/, Window* /*w*/, int32_t /*n*/)
3640 {
3641         if (toolbar_frame.get_parent() == 0) {
3642                 top_hbox.pack_end (toolbar_frame);
3643         }
3644 }
3645
3646 void
3647 Editor::set_show_measures (bool yn)
3648 {
3649         if (_show_measures != yn) {
3650                 hide_measures ();
3651
3652                 if ((_show_measures = yn) == true) {
3653                         if (tempo_lines)
3654                                 tempo_lines->show();
3655                         draw_measures ();
3656                 }
3657                 instant_save ();
3658         }
3659 }
3660
3661 void
3662 Editor::toggle_follow_playhead ()
3663 {
3664         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3665         if (act) {
3666                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3667                 set_follow_playhead (tact->get_active());
3668         }
3669 }
3670
3671 /** @param yn true to follow playhead, otherwise false.
3672  *  @param catch_up true to reset the editor view to show the playhead (if yn == true), otherwise false.
3673  */
3674 void
3675 Editor::set_follow_playhead (bool yn, bool catch_up)
3676 {
3677         if (_follow_playhead != yn) {
3678                 if ((_follow_playhead = yn) == true && catch_up) {
3679                         /* catch up */
3680                         reset_x_origin_to_follow_playhead ();
3681                 }
3682                 instant_save ();
3683         }
3684 }
3685
3686 void
3687 Editor::toggle_stationary_playhead ()
3688 {
3689         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-stationary-playhead"));
3690         if (act) {
3691                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3692                 set_stationary_playhead (tact->get_active());
3693         }
3694 }
3695
3696 void
3697 Editor::set_stationary_playhead (bool yn)
3698 {
3699         if (_stationary_playhead != yn) {
3700                 if ((_stationary_playhead = yn) == true) {
3701                         /* catch up */
3702                         // FIXME need a 3.0 equivalent of this 2.X call
3703                         // update_current_screen ();
3704                 }
3705                 instant_save ();
3706         }
3707 }
3708
3709 PlaylistSelector&
3710 Editor::playlist_selector () const
3711 {
3712         return *_playlist_selector;
3713 }
3714
3715 Evoral::MusicalTime
3716 Editor::get_grid_type_as_beats (bool& success, framepos_t position)
3717 {
3718         success = true;
3719
3720         switch (_snap_type) {
3721         case SnapToBeat:
3722                 return 1.0;
3723                 break;
3724
3725         case SnapToBeatDiv128:
3726                 return 1.0/128.0;
3727                 break;
3728         case SnapToBeatDiv64:
3729                 return 1.0/64.0;
3730                 break;
3731         case SnapToBeatDiv32:
3732                 return 1.0/32.0;
3733                 break;
3734         case SnapToBeatDiv28:
3735                 return 1.0/28.0;
3736                 break;
3737         case SnapToBeatDiv24:
3738                 return 1.0/24.0;
3739                 break;
3740         case SnapToBeatDiv20:
3741                 return 1.0/20.0;
3742                 break;
3743         case SnapToBeatDiv16:
3744                 return 1.0/16.0;
3745                 break;
3746         case SnapToBeatDiv14:
3747                 return 1.0/14.0;
3748                 break;
3749         case SnapToBeatDiv12:
3750                 return 1.0/12.0;
3751                 break;
3752         case SnapToBeatDiv10:
3753                 return 1.0/10.0;
3754                 break;
3755         case SnapToBeatDiv8:
3756                 return 1.0/8.0;
3757                 break;
3758         case SnapToBeatDiv7:
3759                 return 1.0/7.0;
3760                 break;
3761         case SnapToBeatDiv6:
3762                 return 1.0/6.0;
3763                 break;
3764         case SnapToBeatDiv5:
3765                 return 1.0/5.0;
3766                 break;
3767         case SnapToBeatDiv4:
3768                 return 1.0/4.0;
3769                 break;
3770         case SnapToBeatDiv3:
3771                 return 1.0/3.0;
3772                 break;
3773         case SnapToBeatDiv2:
3774                 return 1.0/2.0;
3775                 break;
3776
3777         case SnapToBar:
3778                 if (_session) {
3779                         return _session->tempo_map().meter_at (position).divisions_per_bar();
3780                 }
3781                 break;
3782
3783         case SnapToCDFrame:
3784         case SnapToTimecodeFrame:
3785         case SnapToTimecodeSeconds:
3786         case SnapToTimecodeMinutes:
3787         case SnapToSeconds:
3788         case SnapToMinutes:
3789         case SnapToRegionStart:
3790         case SnapToRegionEnd:
3791         case SnapToRegionSync:
3792         case SnapToRegionBoundary:
3793         default:
3794                 success = false;
3795                 break;
3796         }
3797
3798         return 0.0;
3799 }
3800
3801 framecnt_t
3802 Editor::get_nudge_distance (framepos_t pos, framecnt_t& next)
3803 {
3804         framecnt_t ret;
3805
3806         ret = nudge_clock->current_duration (pos);
3807         next = ret + 1; /* XXXX fix me */
3808
3809         return ret;
3810 }
3811
3812 int
3813 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
3814 {
3815         ArdourDialog dialog (_("Playlist Deletion"));
3816         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
3817                                         "If it is kept, its audio files will not be cleaned.\n"
3818                                         "If it is deleted, audio files used by it alone will be cleaned."),
3819                                       pl->name()));
3820
3821         dialog.set_position (WIN_POS_CENTER);
3822         dialog.get_vbox()->pack_start (label);
3823
3824         label.show ();
3825
3826         dialog.add_button (_("Delete Playlist"), RESPONSE_ACCEPT);
3827         dialog.add_button (_("Keep Playlist"), RESPONSE_REJECT);
3828         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
3829
3830         switch (dialog.run ()) {
3831         case RESPONSE_ACCEPT:
3832                 /* delete the playlist */
3833                 return 0;
3834                 break;
3835
3836         case RESPONSE_REJECT:
3837                 /* keep the playlist */
3838                 return 1;
3839                 break;
3840
3841         default:
3842                 break;
3843         }
3844
3845         return -1;
3846 }
3847
3848 bool
3849 Editor::audio_region_selection_covers (framepos_t where)
3850 {
3851         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
3852                 if ((*a)->region()->covers (where)) {
3853                         return true;
3854                 }
3855         }
3856
3857         return false;
3858 }
3859
3860 void
3861 Editor::prepare_for_cleanup ()
3862 {
3863         cut_buffer->clear_regions ();
3864         cut_buffer->clear_playlists ();
3865
3866         selection->clear_regions ();
3867         selection->clear_playlists ();
3868
3869         _regions->suspend_redisplay ();
3870 }
3871
3872 void
3873 Editor::finish_cleanup ()
3874 {
3875         _regions->resume_redisplay ();
3876 }
3877
3878 Location*
3879 Editor::transport_loop_location()
3880 {
3881         if (_session) {
3882                 return _session->locations()->auto_loop_location();
3883         } else {
3884                 return 0;
3885         }
3886 }
3887
3888 Location*
3889 Editor::transport_punch_location()
3890 {
3891         if (_session) {
3892                 return _session->locations()->auto_punch_location();
3893         } else {
3894                 return 0;
3895         }
3896 }
3897
3898 bool
3899 Editor::control_layout_scroll (GdkEventScroll* ev)
3900 {
3901         if (Keyboard::some_magic_widget_has_focus()) {
3902                 return false;
3903         }
3904
3905         switch (ev->direction) {
3906         case GDK_SCROLL_UP:
3907                 scroll_tracks_up_line ();
3908                 return true;
3909                 break;
3910
3911         case GDK_SCROLL_DOWN:
3912                 scroll_tracks_down_line ();
3913                 return true;
3914
3915         default:
3916                 /* no left/right handling yet */
3917                 break;
3918         }
3919
3920         return false;
3921 }
3922
3923 void
3924 Editor::session_state_saved (string)
3925 {
3926         update_title ();
3927         _snapshots->redisplay ();
3928 }
3929
3930 void
3931 Editor::update_tearoff_visibility()
3932 {
3933         bool visible = Config->get_keep_tearoffs();
3934         _mouse_mode_tearoff->set_visible (visible);
3935         _tools_tearoff->set_visible (visible);
3936         _zoom_tearoff->set_visible (visible);
3937 }
3938
3939 void
3940 Editor::maximise_editing_space ()
3941 {
3942         if (_maximised) {
3943                 return;
3944         }
3945
3946         fullscreen ();
3947
3948         _maximised = true;
3949 }
3950
3951 void
3952 Editor::restore_editing_space ()
3953 {
3954         if (!_maximised) {
3955                 return;
3956         }
3957
3958         unfullscreen();
3959
3960         _maximised = false;
3961 }
3962
3963 /**
3964  *  Make new playlists for a given track and also any others that belong
3965  *  to the same active route group with the `edit' property.
3966  *  @param v Track.
3967  */
3968
3969 void
3970 Editor::new_playlists (TimeAxisView* v)
3971 {
3972         begin_reversible_command (_("new playlists"));
3973         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
3974         _session->playlists->get (playlists);
3975         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_new_playlist), playlists), v, ARDOUR::Properties::edit.property_id);
3976         commit_reversible_command ();
3977 }
3978
3979 /**
3980  *  Use a copy of the current playlist for a given track and also any others that belong
3981  *  to the same active route group with the `edit' property.
3982  *  @param v Track.
3983  */
3984
3985 void
3986 Editor::copy_playlists (TimeAxisView* v)
3987 {
3988         begin_reversible_command (_("copy playlists"));
3989         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
3990         _session->playlists->get (playlists);
3991         mapover_tracks (sigc::bind (sigc::mem_fun (*this, &Editor::mapped_use_copy_playlist), playlists), v, ARDOUR::Properties::edit.property_id);
3992         commit_reversible_command ();
3993 }
3994
3995 /** Clear the current playlist for a given track and also any others that belong
3996  *  to the same active route group with the `edit' property.
3997  *  @param v Track.
3998  */
3999
4000 void
4001 Editor::clear_playlists (TimeAxisView* v)
4002 {
4003         begin_reversible_command (_("clear playlists"));
4004         vector<boost::shared_ptr<ARDOUR::Playlist> > playlists;
4005         _session->playlists->get (playlists);
4006         mapover_tracks (sigc::mem_fun (*this, &Editor::mapped_clear_playlist), v, ARDOUR::Properties::edit.property_id);
4007         commit_reversible_command ();
4008 }
4009
4010 void
4011 Editor::mapped_use_new_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4012 {
4013         atv.use_new_playlist (sz > 1 ? false : true, playlists);
4014 }
4015
4016 void
4017 Editor::mapped_use_copy_playlist (RouteTimeAxisView& atv, uint32_t sz, vector<boost::shared_ptr<ARDOUR::Playlist> > const & playlists)
4018 {
4019         atv.use_copy_playlist (sz > 1 ? false : true, playlists);
4020 }
4021
4022 void
4023 Editor::mapped_clear_playlist (RouteTimeAxisView& atv, uint32_t /*sz*/)
4024 {
4025         atv.clear_playlist ();
4026 }
4027
4028 bool
4029 Editor::on_key_press_event (GdkEventKey* ev)
4030 {
4031         return key_press_focus_accelerator_handler (*this, ev);
4032 }
4033
4034 bool
4035 Editor::on_key_release_event (GdkEventKey* ev)
4036 {
4037         return Gtk::Window::on_key_release_event (ev);
4038         // return key_press_focus_accelerator_handler (*this, ev);
4039 }
4040
4041 /** Queue up a change to the viewport x origin.
4042  *  @param frame New x origin.
4043  */
4044 void
4045 Editor::reset_x_origin (framepos_t frame)
4046 {
4047         pending_visual_change.add (VisualChange::TimeOrigin);
4048         pending_visual_change.time_origin = frame;
4049         ensure_visual_change_idle_handler ();
4050 }
4051
4052 void
4053 Editor::reset_y_origin (double y)
4054 {
4055         pending_visual_change.add (VisualChange::YOrigin);
4056         pending_visual_change.y_origin = y;
4057         ensure_visual_change_idle_handler ();
4058 }
4059
4060 void
4061 Editor::reset_zoom (double fpu)
4062 {
4063         clamp_frames_per_unit (fpu);
4064
4065         if (fpu == frames_per_unit) {
4066                 return;
4067         }
4068
4069         pending_visual_change.add (VisualChange::ZoomLevel);
4070         pending_visual_change.frames_per_unit = fpu;
4071         ensure_visual_change_idle_handler ();
4072 }
4073
4074 void
4075 Editor::reposition_and_zoom (framepos_t frame, double fpu)
4076 {
4077         reset_x_origin (frame);
4078         reset_zoom (fpu);
4079
4080         if (!no_save_visual) {
4081                 undo_visual_stack.push_back (current_visual_state(false));
4082         }
4083 }
4084
4085 Editor::VisualState::VisualState (bool with_tracks)
4086         : gui_state (with_tracks ? new GUIObjectState : 0)
4087 {
4088 }
4089
4090 Editor::VisualState::~VisualState ()
4091 {
4092         delete gui_state;
4093 }
4094
4095 Editor::VisualState*
4096 Editor::current_visual_state (bool with_tracks)
4097 {
4098         VisualState* vs = new VisualState (with_tracks);
4099         vs->y_position = vertical_adjustment.get_value();
4100         vs->frames_per_unit = frames_per_unit;
4101         vs->leftmost_frame = leftmost_frame;
4102         vs->zoom_focus = zoom_focus;
4103
4104         if (with_tracks) {
4105                 *vs->gui_state = *ARDOUR_UI::instance()->gui_object_state;
4106         }
4107
4108         return vs;
4109 }
4110
4111 void
4112 Editor::undo_visual_state ()
4113 {
4114         if (undo_visual_stack.empty()) {
4115                 return;
4116         }
4117
4118         VisualState* vs = undo_visual_stack.back();
4119         undo_visual_stack.pop_back();
4120
4121
4122         redo_visual_stack.push_back (current_visual_state (vs ? vs->gui_state != 0 : false));
4123
4124         use_visual_state (*vs);
4125 }
4126
4127 void
4128 Editor::redo_visual_state ()
4129 {
4130         if (redo_visual_stack.empty()) {
4131                 return;
4132         }
4133
4134         VisualState* vs = redo_visual_stack.back();
4135         redo_visual_stack.pop_back();
4136
4137         undo_visual_stack.push_back (current_visual_state (vs ? vs->gui_state != 0 : false));
4138
4139         use_visual_state (*vs);
4140 }
4141
4142 void
4143 Editor::swap_visual_state ()
4144 {
4145         if (undo_visual_stack.empty()) {
4146                 redo_visual_state ();
4147         } else {
4148                 undo_visual_state ();
4149         }
4150 }
4151
4152 void
4153 Editor::use_visual_state (VisualState& vs)
4154 {
4155         PBD::Unwinder<bool> nsv (no_save_visual, true);
4156
4157         _routes->suspend_redisplay ();
4158
4159         vertical_adjustment.set_value (vs.y_position);
4160
4161         set_zoom_focus (vs.zoom_focus);
4162         reposition_and_zoom (vs.leftmost_frame, vs.frames_per_unit);
4163
4164         if (vs.gui_state) {
4165                 *ARDOUR_UI::instance()->gui_object_state = *vs.gui_state;
4166
4167                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4168                         (*i)->reset_visual_state ();
4169                 }
4170         }
4171
4172         _routes->update_visibility ();
4173         _routes->resume_redisplay ();
4174 }
4175
4176 /** This is the core function that controls the zoom level of the canvas. It is called
4177  *  whenever one or more calls are made to reset_zoom().  It executes in an idle handler.
4178  *  @param fpu New frames per unit; should already have been clamped so that it is sensible.
4179  */
4180 void
4181 Editor::set_frames_per_unit (double fpu)
4182 {
4183         if (tempo_lines) {
4184                 tempo_lines->tempo_map_changed();
4185         }
4186
4187         frames_per_unit = fpu;
4188
4189         /* convert fpu to frame count */
4190
4191         framepos_t frames = (framepos_t) floor (frames_per_unit * _canvas_width);
4192
4193         if (frames_per_unit != zoom_range_clock->current_duration()) {
4194                 zoom_range_clock->set (frames);
4195         }
4196
4197         bool const showing_time_selection =
4198                 mouse_mode == MouseRange ||
4199                 (mouse_mode == MouseObject && _join_object_range_state != JOIN_OBJECT_RANGE_NONE);
4200
4201         if (showing_time_selection && selection->time.start () != selection->time.end_frame ()) {
4202                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4203                         (*i)->reshow_selection (selection->time);
4204                 }
4205         }
4206
4207         ZoomChanged (); /* EMIT_SIGNAL */
4208
4209         //reset_scrolling_region ();
4210
4211         if (playhead_cursor) {
4212                 playhead_cursor->set_position (playhead_cursor->current_frame);
4213         }
4214
4215         refresh_location_display();
4216         _summary->set_overlays_dirty ();
4217
4218         update_marker_labels ();
4219
4220         instant_save ();
4221 }
4222
4223 void
4224 Editor::ensure_visual_change_idle_handler ()
4225 {
4226         if (pending_visual_change.idle_handler_id < 0) {
4227                 pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
4228         }
4229 }
4230
4231 int
4232 Editor::_idle_visual_changer (void* arg)
4233 {
4234         return static_cast<Editor*>(arg)->idle_visual_changer ();
4235 }
4236
4237 int
4238 Editor::idle_visual_changer ()
4239 {
4240         /* set_horizontal_position() below (and maybe other calls) call
4241            gtk_main_iteration(), so it's possible that a signal will be handled
4242            half-way through this method.  If this signal wants an
4243            idle_visual_changer we must schedule another one after this one, so
4244            mark the idle_handler_id as -1 here to allow that.  Also make a note
4245            that we are doing the visual change, so that changes in response to
4246            super-rapid-screen-update can be dropped if we are still processing
4247            the last one.
4248         */
4249         pending_visual_change.idle_handler_id = -1;
4250         pending_visual_change.being_handled = true;
4251
4252         VisualChange::Type p = pending_visual_change.pending;
4253         pending_visual_change.pending = (VisualChange::Type) 0;
4254
4255         double const last_time_origin = horizontal_position ();
4256
4257         if (p & VisualChange::ZoomLevel) {
4258                 set_frames_per_unit (pending_visual_change.frames_per_unit);
4259
4260                 compute_fixed_ruler_scale ();
4261                 compute_current_bbt_points(pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4262                 compute_bbt_ruler_scale (pending_visual_change.time_origin, pending_visual_change.time_origin + current_page_frames());
4263                 update_tempo_based_rulers ();
4264         }
4265         if (p & VisualChange::TimeOrigin) {
4266                 set_horizontal_position (pending_visual_change.time_origin / frames_per_unit);
4267         }
4268         if (p & VisualChange::YOrigin) {
4269                 vertical_adjustment.set_value (pending_visual_change.y_origin);
4270         }
4271
4272         if (last_time_origin == horizontal_position ()) {
4273                 /* changed signal not emitted */
4274                 update_fixed_rulers ();
4275                 redisplay_tempo (true);
4276         }
4277
4278         _summary->set_overlays_dirty ();
4279
4280         pending_visual_change.being_handled = false;
4281         return 0; /* this is always a one-shot call */
4282 }
4283
4284 struct EditorOrderTimeAxisSorter {
4285     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
4286             return a->order () < b->order ();
4287     }
4288 };
4289
4290 void
4291 Editor::sort_track_selection (TrackViewList& sel)
4292 {
4293         EditorOrderTimeAxisSorter cmp;
4294         sel.sort (cmp);
4295 }
4296
4297 framepos_t
4298 Editor::get_preferred_edit_position (bool ignore_playhead, bool from_context_menu)
4299 {
4300         bool ignored;
4301         framepos_t where = 0;
4302         EditPoint ep = _edit_point;
4303
4304         if (from_context_menu && (ep == EditAtMouse)) {
4305                 return  event_frame (&context_click_event, 0, 0);
4306         }
4307
4308         if (entered_marker) {
4309                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use entered marker @ %1\n", entered_marker->position()));
4310                 return entered_marker->position();
4311         }
4312
4313         if (ignore_playhead && ep == EditAtPlayhead) {
4314                 ep = EditAtSelectedMarker;
4315         }
4316
4317         switch (ep) {
4318         case EditAtPlayhead:
4319                 where = _session->audible_frame();
4320                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use playhead @ %1\n", where));
4321                 break;
4322
4323         case EditAtSelectedMarker:
4324                 if (!selection->markers.empty()) {
4325                         bool is_start;
4326                         Location* loc = find_location_from_marker (selection->markers.front(), is_start);
4327                         if (loc) {
4328                                 if (is_start) {
4329                                         where =  loc->start();
4330                                 } else {
4331                                         where = loc->end();
4332                                 }
4333                                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use selected marker @ %1\n", where));
4334                                 break;
4335                         }
4336                 }
4337                 /* fallthru */
4338
4339         default:
4340         case EditAtMouse:
4341                 if (!mouse_frame (where, ignored)) {
4342                         /* XXX not right but what can we do ? */
4343                         return 0;
4344                 }
4345                 snap_to (where);
4346                 DEBUG_TRACE (DEBUG::CutNPaste, string_compose ("GPEP: use mouse @ %1\n", where));
4347                 break;
4348         }
4349
4350         return where;
4351 }
4352
4353 void
4354 Editor::set_loop_range (framepos_t start, framepos_t end, string cmd)
4355 {
4356         if (!_session) return;
4357
4358         begin_reversible_command (cmd);
4359
4360         Location* tll;
4361
4362         if ((tll = transport_loop_location()) == 0) {
4363                 Location* loc = new Location (*_session, start, end, _("Loop"),  Location::IsAutoLoop);
4364                 XMLNode &before = _session->locations()->get_state();
4365                 _session->locations()->add (loc, true);
4366                 _session->set_auto_loop_location (loc);
4367                 XMLNode &after = _session->locations()->get_state();
4368                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4369         } else {
4370                 XMLNode &before = tll->get_state();
4371                 tll->set_hidden (false, this);
4372                 tll->set (start, end);
4373                 XMLNode &after = tll->get_state();
4374                 _session->add_command (new MementoCommand<Location>(*tll, &before, &after));
4375         }
4376
4377         commit_reversible_command ();
4378 }
4379
4380 void
4381 Editor::set_punch_range (framepos_t start, framepos_t end, string cmd)
4382 {
4383         if (!_session) return;
4384
4385         begin_reversible_command (cmd);
4386
4387         Location* tpl;
4388
4389         if ((tpl = transport_punch_location()) == 0) {
4390                 Location* loc = new Location (*_session, start, end, _("Punch"),  Location::IsAutoPunch);
4391                 XMLNode &before = _session->locations()->get_state();
4392                 _session->locations()->add (loc, true);
4393                 _session->set_auto_loop_location (loc);
4394                 XMLNode &after = _session->locations()->get_state();
4395                 _session->add_command (new MementoCommand<Locations>(*(_session->locations()), &before, &after));
4396         }
4397         else {
4398                 XMLNode &before = tpl->get_state();
4399                 tpl->set_hidden (false, this);
4400                 tpl->set (start, end);
4401                 XMLNode &after = tpl->get_state();
4402                 _session->add_command (new MementoCommand<Location>(*tpl, &before, &after));
4403         }
4404
4405         commit_reversible_command ();
4406 }
4407
4408 /** Find regions which exist at a given time, and optionally on a given list of tracks.
4409  *  @param rs List to which found regions are added.
4410  *  @param where Time to look at.
4411  *  @param ts Tracks to look on; if this is empty, all tracks are examined.
4412  */
4413 void
4414 Editor::get_regions_at (RegionSelection& rs, framepos_t where, const TrackViewList& ts) const
4415 {
4416         const TrackViewList* tracks;
4417
4418         if (ts.empty()) {
4419                 tracks = &track_views;
4420         } else {
4421                 tracks = &ts;
4422         }
4423
4424         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4425
4426                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4427
4428                 if (rtv) {
4429                         boost::shared_ptr<Track> tr;
4430                         boost::shared_ptr<Playlist> pl;
4431
4432                         if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
4433
4434                                 boost::shared_ptr<RegionList> regions = pl->regions_at (
4435                                                 (framepos_t) floor ( (double) where * tr->speed()));
4436
4437                                 for (RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4438                                         RegionView* rv = rtv->view()->find_view (*i);
4439                                         if (rv) {
4440                                                 rs.add (rv);
4441                                         }
4442                                 }
4443                         }
4444                 }
4445         }
4446 }
4447
4448 void
4449 Editor::get_regions_after (RegionSelection& rs, framepos_t where, const TrackViewList& ts) const
4450 {
4451         const TrackViewList* tracks;
4452
4453         if (ts.empty()) {
4454                 tracks = &track_views;
4455         } else {
4456                 tracks = &ts;
4457         }
4458
4459         for (TrackViewList::const_iterator t = tracks->begin(); t != tracks->end(); ++t) {
4460                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*>(*t);
4461                 if (rtv) {
4462                         boost::shared_ptr<Track> tr;
4463                         boost::shared_ptr<Playlist> pl;
4464
4465                         if ((tr = rtv->track()) && ((pl = tr->playlist()))) {
4466
4467                                 boost::shared_ptr<RegionList> regions = pl->regions_touched (
4468                                         (framepos_t) floor ( (double)where * tr->speed()), max_framepos);
4469
4470                                 for (RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
4471
4472                                         RegionView* rv = rtv->view()->find_view (*i);
4473
4474                                         if (rv) {
4475                                                 rs.push_back (rv);
4476                                         }
4477                                 }
4478                         }
4479                 }
4480         }
4481 }
4482
4483 /** Start with regions that are selected.  Then add equivalent regions
4484  *  on tracks in the same active edit-enabled route group as any of
4485  *  the regions that we started with.
4486  */
4487
4488 RegionSelection
4489 Editor::get_regions_from_selection ()
4490 {
4491         return get_equivalent_regions (selection->regions, ARDOUR::Properties::edit.property_id);
4492 }
4493
4494 /** Get regions using the following method:
4495  *
4496  *  Make an initial region list using the selected regions, unless
4497  *  the edit point is `mouse' and the mouse is over an unselected
4498  *  region.  In this case, start with just that region.
4499  *
4500  *  Then, add equivalent regions in active edit groups to the region list.
4501  *
4502  *  Then, search the list of selected tracks to find any selected tracks which
4503  *  do not contain regions already in the region list. If there are no selected
4504  *  tracks and 'No Selection = All Tracks' is active, search all tracks rather
4505  *  than just the selected.
4506  *
4507  *  Add any regions that are under the edit point on these tracks to get the
4508  *  returned region list.
4509  *
4510  *  The rationale here is that the mouse edit point is special in that
4511  *  its position describes both a time and a track; the other edit
4512  *  modes only describe a time.  Hence if the edit point is `mouse' we
4513  *  ignore selected tracks, as we assume the user means something by
4514  *  pointing at a particular track.  Also in this case we take note of
4515  *  the region directly under the edit point, as there is always just one
4516  *  (rather than possibly several with non-mouse edit points).
4517  */
4518
4519 RegionSelection
4520 Editor::get_regions_from_selection_and_edit_point ()
4521 {
4522         RegionSelection regions;
4523
4524         if (_edit_point == EditAtMouse && entered_regionview && !selection->regions.contains (entered_regionview)) {
4525                 regions.add (entered_regionview);
4526         } else {
4527                 regions = selection->regions;
4528         }
4529
4530         TrackViewList tracks;
4531
4532         if (_edit_point != EditAtMouse) {
4533                 tracks = selection->tracks;
4534         }
4535
4536         /* Add any other regions that are in the same
4537            edit-activated route group as one of our regions.
4538          */
4539         regions = get_equivalent_regions (regions, ARDOUR::Properties::edit.property_id);
4540         framepos_t const where = get_preferred_edit_position ();
4541
4542         if (_route_groups->all_group_active_button().get_active() && tracks.empty()) {
4543                 /* tracks is empty (no track selected), and 'No Selection = All Tracks'
4544                  * is enabled, so consider all tracks
4545                  */
4546                 tracks = track_views;
4547         }
4548
4549         if (!tracks.empty()) {
4550                 /* now search the selected tracks for tracks which don't
4551                    already contain regions to be acted upon, and get regions at
4552                    the edit point on those tracks too.
4553                  */
4554                 TrackViewList tracks_without_relevant_regions;
4555
4556                 for (TrackViewList::iterator t = tracks.begin (); t != tracks.end (); ++t) {
4557                         if (!regions.involves (**t)) {
4558                                 /* there are no equivalent regions on this track */
4559                                 tracks_without_relevant_regions.push_back (*t);
4560                         }
4561                 }
4562
4563                 if (!tracks_without_relevant_regions.empty()) {
4564                         /* there are some selected tracks with neither selected
4565                          * regions or their equivalents: act upon all regions in
4566                          * those tracks
4567                          */
4568                         get_regions_at (regions, where, tracks_without_relevant_regions);
4569                 }
4570         }
4571
4572         return regions;
4573 }
4574
4575 /** Start with regions that are selected, or the entered regionview if none are selected.
4576  *  Then add equivalent regions on tracks in the same active edit-enabled route group as any
4577  *  of the regions that we started with.
4578  */
4579
4580 RegionSelection
4581 Editor::get_regions_from_selection_and_entered ()
4582 {
4583         RegionSelection regions = selection->regions;
4584
4585         if (regions.empty() && entered_regionview) {
4586                 regions.add (entered_regionview);
4587         }
4588
4589         return get_equivalent_regions (regions, ARDOUR::Properties::edit.property_id);
4590 }
4591
4592 void
4593 Editor::get_regions_corresponding_to (boost::shared_ptr<Region> region, vector<RegionView*>& regions)
4594 {
4595         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4596
4597                 RouteTimeAxisView* tatv;
4598
4599                 if ((tatv = dynamic_cast<RouteTimeAxisView*> (*i)) != 0) {
4600
4601                         boost::shared_ptr<Playlist> pl;
4602                         vector<boost::shared_ptr<Region> > results;
4603                         RegionView* marv;
4604                         boost::shared_ptr<Track> tr;
4605
4606                         if ((tr = tatv->track()) == 0) {
4607                                 /* bus */
4608                                 continue;
4609                         }
4610
4611                         if ((pl = (tr->playlist())) != 0) {
4612                                 pl->get_region_list_equivalent_regions (region, results);
4613                         }
4614
4615                         for (vector<boost::shared_ptr<Region> >::iterator ir = results.begin(); ir != results.end(); ++ir) {
4616                                 if ((marv = tatv->view()->find_view (*ir)) != 0) {
4617                                         regions.push_back (marv);
4618                                 }
4619                         }
4620
4621                 }
4622         }
4623 }
4624
4625 void
4626 Editor::show_rhythm_ferret ()
4627 {
4628         if (rhythm_ferret == 0) {
4629                 rhythm_ferret = new RhythmFerret(*this);
4630         }
4631
4632         rhythm_ferret->set_session (_session);
4633         rhythm_ferret->show ();
4634         rhythm_ferret->present ();
4635 }
4636
4637 void
4638 Editor::first_idle ()
4639 {
4640         MessageDialog* dialog = 0;
4641
4642         if (track_views.size() > 1) {
4643                 dialog = new MessageDialog (
4644                         *this,
4645                         string_compose (_("Please wait while %1 loads visual data."), PROGRAM_NAME),
4646                         true
4647                         );
4648                 dialog->present ();
4649                 ARDOUR_UI::instance()->flush_pending ();
4650         }
4651
4652         for (TrackViewList::iterator t = track_views.begin(); t != track_views.end(); ++t) {
4653                 (*t)->first_idle();
4654         }
4655
4656         // first idle adds route children (automation tracks), so we need to redisplay here
4657         _routes->redisplay ();
4658
4659         delete dialog;
4660         _have_idled = true;
4661 }
4662
4663 gboolean
4664 Editor::_idle_resize (gpointer arg)
4665 {
4666         return ((Editor*)arg)->idle_resize ();
4667 }
4668
4669 void
4670 Editor::add_to_idle_resize (TimeAxisView* view, int32_t h)
4671 {
4672         if (resize_idle_id < 0) {
4673                 resize_idle_id = g_idle_add (_idle_resize, this);
4674                 _pending_resize_amount = 0;
4675         }
4676
4677         /* make a note of the smallest resulting height, so that we can clamp the
4678            lower limit at TimeAxisView::hSmall */
4679
4680         int32_t min_resulting = INT32_MAX;
4681
4682         _pending_resize_amount += h;
4683         _pending_resize_view = view;
4684
4685         min_resulting = min (min_resulting, int32_t (_pending_resize_view->current_height()) + _pending_resize_amount);
4686
4687         if (selection->tracks.contains (_pending_resize_view)) {
4688                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4689                         min_resulting = min (min_resulting, int32_t ((*i)->current_height()) + _pending_resize_amount);
4690                 }
4691         }
4692
4693         if (min_resulting < 0) {
4694                 min_resulting = 0;
4695         }
4696
4697         /* clamp */
4698         if (uint32_t (min_resulting) < TimeAxisView::preset_height (HeightSmall)) {
4699                 _pending_resize_amount += TimeAxisView::preset_height (HeightSmall) - min_resulting;
4700         }
4701 }
4702
4703 /** Handle pending resizing of tracks */
4704 bool
4705 Editor::idle_resize ()
4706 {
4707         _pending_resize_view->idle_resize (_pending_resize_view->current_height() + _pending_resize_amount);
4708
4709         if (dynamic_cast<AutomationTimeAxisView*> (_pending_resize_view) == 0 &&
4710             selection->tracks.contains (_pending_resize_view)) {
4711
4712                 for (TrackViewList::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
4713                         if (*i != _pending_resize_view) {
4714                                 (*i)->idle_resize ((*i)->current_height() + _pending_resize_amount);
4715                         }
4716                 }
4717         }
4718
4719         _pending_resize_amount = 0;
4720         flush_canvas ();
4721         _group_tabs->set_dirty ();
4722         resize_idle_id = -1;
4723
4724         return false;
4725 }
4726
4727 void
4728 Editor::located ()
4729 {
4730         ENSURE_GUI_THREAD (*this, &Editor::located);
4731
4732         if (_session) {
4733                 playhead_cursor->set_position (_session->audible_frame ());
4734                 if (_follow_playhead && !_pending_initial_locate) {
4735                         reset_x_origin_to_follow_playhead ();
4736                 }
4737         }
4738
4739         _pending_locate_request = false;
4740         _pending_initial_locate = false;
4741 }
4742
4743 void
4744 Editor::region_view_added (RegionView *)
4745 {
4746         _summary->set_dirty ();
4747 }
4748
4749 void
4750 Editor::region_view_removed ()
4751 {
4752         _summary->set_dirty ();
4753 }
4754
4755 TimeAxisView*
4756 Editor::axis_view_from_route (boost::shared_ptr<Route> r) const
4757 {
4758         TrackViewList::const_iterator j = track_views.begin ();
4759         while (j != track_views.end()) {
4760                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (*j);
4761                 if (rtv && rtv->route() == r) {
4762                         return rtv;
4763                 }
4764                 ++j;
4765         }
4766
4767         return 0;
4768 }
4769
4770
4771 TrackViewList
4772 Editor::axis_views_from_routes (boost::shared_ptr<RouteList> r) const
4773 {
4774         TrackViewList t;
4775
4776         for (RouteList::const_iterator i = r->begin(); i != r->end(); ++i) {
4777                 TimeAxisView* tv = axis_view_from_route (*i);
4778                 if (tv) {
4779                         t.push_back (tv);
4780                 }
4781         }
4782
4783         return t;
4784 }
4785
4786 void
4787 Editor::add_routes (RouteList& routes)
4788 {
4789         ENSURE_GUI_THREAD (*this, &Editor::handle_new_route, routes)
4790
4791         RouteTimeAxisView *rtv;
4792         list<RouteTimeAxisView*> new_views;
4793
4794         for (RouteList::iterator x = routes.begin(); x != routes.end(); ++x) {
4795                 boost::shared_ptr<Route> route = (*x);
4796
4797                 if (route->is_hidden() || route->is_monitor()) {
4798                         continue;
4799                 }
4800
4801                 DataType dt = route->input()->default_type();
4802
4803                 if (dt == ARDOUR::DataType::AUDIO) {
4804                         rtv = new AudioTimeAxisView (*this, _session, *track_canvas);
4805                         rtv->set_route (route);
4806                 } else if (dt == ARDOUR::DataType::MIDI) {
4807                         rtv = new MidiTimeAxisView (*this, _session, *track_canvas);
4808                         rtv->set_route (route);
4809                 } else {
4810                         throw unknown_type();
4811                 }
4812
4813                 new_views.push_back (rtv);
4814                 track_views.push_back (rtv);
4815
4816                 rtv->effective_gain_display ();
4817
4818                 if (internal_editing()) {
4819                         rtv->enter_internal_edit_mode ();
4820                 } else {
4821                         rtv->leave_internal_edit_mode ();
4822                 }
4823
4824                 rtv->view()->RegionViewAdded.connect (sigc::mem_fun (*this, &Editor::region_view_added));
4825                 rtv->view()->RegionViewRemoved.connect (sigc::mem_fun (*this, &Editor::region_view_removed));
4826         }
4827
4828         _routes->routes_added (new_views);
4829         _summary->routes_added (new_views);
4830
4831         if (show_editor_mixer_when_tracks_arrive) {
4832                 show_editor_mixer (true);
4833         }
4834
4835         editor_list_button.set_sensitive (true);
4836 }
4837
4838 void
4839 Editor::timeaxisview_deleted (TimeAxisView *tv)
4840 {
4841         if (_session && _session->deletion_in_progress()) {
4842                 /* the situation is under control */
4843                 return;
4844         }
4845
4846         ENSURE_GUI_THREAD (*this, &Editor::timeaxisview_deleted, tv);
4847
4848         RouteTimeAxisView* rtav = dynamic_cast<RouteTimeAxisView*> (tv);
4849
4850         _routes->route_removed (tv);
4851
4852         if (tv == entered_track) {
4853                 entered_track = 0;
4854         }
4855
4856         TimeAxisView::Children c = tv->get_child_list ();
4857         for (TimeAxisView::Children::const_iterator i = c.begin(); i != c.end(); ++i) {
4858                 if (entered_track == i->get()) {
4859                         entered_track = 0;
4860                 }
4861         }
4862
4863         /* remove it from the list of track views */
4864
4865         TrackViewList::iterator i;
4866
4867         if ((i = find (track_views.begin(), track_views.end(), tv)) != track_views.end()) {
4868                 i = track_views.erase (i);
4869         }
4870
4871         /* update whatever the current mixer strip is displaying, if revelant */
4872
4873         boost::shared_ptr<Route> route;
4874
4875         if (rtav) {
4876                 route = rtav->route ();
4877         }
4878
4879         if (current_mixer_strip && current_mixer_strip->route() == route) {
4880
4881                 TimeAxisView* next_tv;
4882
4883                 if (track_views.empty()) {
4884                         next_tv = 0;
4885                 } else if (i == track_views.end()) {
4886                         next_tv = track_views.front();
4887                 } else {
4888                         next_tv = (*i);
4889                 }
4890
4891
4892                 if (next_tv) {
4893                         set_selected_mixer_strip (*next_tv);
4894                 } else {
4895                         /* make the editor mixer strip go away setting the
4896                          * button to inactive (which also unticks the menu option)
4897                          */
4898
4899                         ActionManager::uncheck_toggleaction ("<Actions>/Editor/show-editor-mixer");
4900                 }
4901         }
4902 }
4903
4904 void
4905 Editor::hide_track_in_display (TimeAxisView* tv, bool apply_to_selection)
4906 {
4907         if (apply_to_selection) {
4908                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ) {
4909
4910                         TrackSelection::iterator j = i;
4911                         ++j;
4912
4913                         hide_track_in_display (*i, false);
4914
4915                         i = j;
4916                 }
4917         } else {
4918                 RouteTimeAxisView* rtv = dynamic_cast<RouteTimeAxisView*> (tv);
4919
4920                 if (rtv && current_mixer_strip && (rtv->route() == current_mixer_strip->route())) {
4921                         // this will hide the mixer strip
4922                         set_selected_mixer_strip (*tv);
4923                 }
4924
4925                 _routes->hide_track_in_display (*tv);
4926         }
4927 }
4928
4929 bool
4930 Editor::sync_track_view_list_and_routes ()
4931 {
4932         track_views = TrackViewList (_routes->views ());
4933
4934         _summary->set_dirty ();
4935         _group_tabs->set_dirty ();
4936
4937         return false; // do not call again (until needed)
4938 }
4939
4940 void
4941 Editor::foreach_time_axis_view (sigc::slot<void,TimeAxisView&> theslot)
4942 {
4943         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
4944                 theslot (**i);
4945         }
4946 }
4947
4948 /** Find a RouteTimeAxisView by the ID of its route */
4949 RouteTimeAxisView*
4950 Editor::get_route_view_by_route_id (const PBD::ID& id) const
4951 {
4952         RouteTimeAxisView* v;
4953
4954         for (TrackViewList::const_iterator i = track_views.begin(); i != track_views.end(); ++i) {
4955                 if((v = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
4956                         if(v->route()->id() == id) {
4957                                 return v;
4958                         }
4959                 }
4960         }
4961
4962         return 0;
4963 }
4964
4965 void
4966 Editor::fit_route_group (RouteGroup *g)
4967 {
4968         TrackViewList ts = axis_views_from_routes (g->route_list ());
4969         fit_tracks (ts);
4970 }
4971
4972 void
4973 Editor::consider_auditioning (boost::shared_ptr<Region> region)
4974 {
4975         boost::shared_ptr<AudioRegion> r = boost::dynamic_pointer_cast<AudioRegion> (region);
4976
4977         if (r == 0) {
4978                 _session->cancel_audition ();
4979                 return;
4980         }
4981
4982         if (_session->is_auditioning()) {
4983                 _session->cancel_audition ();
4984                 if (r == last_audition_region) {
4985                         return;
4986                 }
4987         }
4988
4989         _session->audition_region (r);
4990         last_audition_region = r;
4991 }
4992
4993
4994 void
4995 Editor::hide_a_region (boost::shared_ptr<Region> r)
4996 {
4997         r->set_hidden (true);
4998 }
4999
5000 void
5001 Editor::show_a_region (boost::shared_ptr<Region> r)
5002 {
5003         r->set_hidden (false);
5004 }
5005
5006 void
5007 Editor::audition_region_from_region_list ()
5008 {
5009         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::consider_auditioning));
5010 }
5011
5012 void
5013 Editor::hide_region_from_region_list ()
5014 {
5015         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::hide_a_region));
5016 }
5017
5018 void
5019 Editor::show_region_in_region_list ()
5020 {
5021         _regions->selection_mapover (sigc::mem_fun (*this, &Editor::show_a_region));
5022 }
5023
5024 void
5025 Editor::step_edit_status_change (bool yn)
5026 {
5027         if (yn) {
5028                 start_step_editing ();
5029         } else {
5030                 stop_step_editing ();
5031         }
5032 }
5033
5034 void
5035 Editor::start_step_editing ()
5036 {
5037         step_edit_connection = Glib::signal_timeout().connect (sigc::mem_fun (*this, &Editor::check_step_edit), 20);
5038 }
5039
5040 void
5041 Editor::stop_step_editing ()
5042 {
5043         step_edit_connection.disconnect ();
5044 }
5045
5046 bool
5047 Editor::check_step_edit ()
5048 {
5049         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5050                 MidiTimeAxisView* mtv = dynamic_cast<MidiTimeAxisView*> (*i);
5051                 if (mtv) {
5052                         mtv->check_step_edit ();
5053                 }
5054         }
5055
5056         return true; // do it again, till we stop
5057 }
5058
5059 bool
5060 Editor::scroll_press (Direction dir)
5061 {
5062         ++_scroll_callbacks;
5063
5064         if (_scroll_connection.connected() && _scroll_callbacks < 5) {
5065                 /* delay the first auto-repeat */
5066                 return true;
5067         }
5068
5069         switch (dir) {
5070         case LEFT:
5071                 scroll_backward (1);
5072                 break;
5073
5074         case RIGHT:
5075                 scroll_forward (1);
5076                 break;
5077
5078         case UP:
5079                 scroll_tracks_up_line ();
5080                 break;
5081
5082         case DOWN:
5083                 scroll_tracks_down_line ();
5084                 break;
5085         }
5086
5087         /* do hacky auto-repeat */
5088         if (!_scroll_connection.connected ()) {
5089
5090                 _scroll_connection = Glib::signal_timeout().connect (
5091                         sigc::bind (sigc::mem_fun (*this, &Editor::scroll_press), dir), 100
5092                         );
5093
5094                 _scroll_callbacks = 0;
5095         }
5096
5097         return true;
5098 }
5099
5100 void
5101 Editor::scroll_release ()
5102 {
5103         _scroll_connection.disconnect ();
5104 }
5105
5106 /** Queue a change for the Editor viewport x origin to follow the playhead */
5107 void
5108 Editor::reset_x_origin_to_follow_playhead ()
5109 {
5110         framepos_t const frame = playhead_cursor->current_frame;
5111
5112         if (frame < leftmost_frame || frame > leftmost_frame + current_page_frames()) {
5113
5114                 if (_session->transport_speed() < 0) {
5115
5116                         if (frame > (current_page_frames() / 2)) {
5117                                 center_screen (frame-(current_page_frames()/2));
5118                         } else {
5119                                 center_screen (current_page_frames()/2);
5120                         }
5121
5122                 } else {
5123
5124                         framepos_t l = 0;
5125
5126                         if (frame < leftmost_frame) {
5127                                 /* moving left */
5128                                 if (_session->transport_rolling()) {
5129                                         /* rolling; end up with the playhead at the right of the page */
5130                                         l = frame - current_page_frames ();
5131                                 } else {
5132                                         /* not rolling: end up with the playhead 1/4 of the way along the page */
5133                                         l = frame - current_page_frames() / 4;
5134                                 }
5135                         } else {
5136                                 /* moving right */
5137                                 if (_session->transport_rolling()) {
5138                                         /* rolling: end up with the playhead on the left of the page */
5139                                         l = frame;
5140                                 } else {
5141                                         /* not rolling: end up with the playhead 3/4 of the way along the page */
5142                                         l = frame - 3 * current_page_frames() / 4;
5143                                 }
5144                         }
5145
5146                         if (l < 0) {
5147                                 l = 0;
5148                         }
5149
5150                         center_screen_internal (l + (current_page_frames() / 2), current_page_frames ());
5151                 }
5152         }
5153 }
5154
5155 void
5156 Editor::super_rapid_screen_update ()
5157 {
5158         if (!_session || !_session->engine().running()) {
5159                 return;
5160         }
5161
5162         /* METERING / MIXER STRIPS */
5163
5164         /* update track meters, if required */
5165         if (is_mapped() && meters_running) {
5166                 RouteTimeAxisView* rtv;
5167                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5168                         if ((rtv = dynamic_cast<RouteTimeAxisView*>(*i)) != 0) {
5169                                 rtv->fast_update ();
5170                         }
5171                 }
5172         }
5173
5174         /* and any current mixer strip */
5175         if (current_mixer_strip) {
5176                 current_mixer_strip->fast_update ();
5177         }
5178
5179         /* PLAYHEAD AND VIEWPORT */
5180
5181         framepos_t const frame = _session->audible_frame();
5182
5183         /* There are a few reasons why we might not update the playhead / viewport stuff:
5184          *
5185          * 1.  we don't update things when there's a pending locate request, otherwise
5186          *     when the editor requests a locate there is a chance that this method
5187          *     will move the playhead before the locate request is processed, causing
5188          *     a visual glitch.
5189          * 2.  if we're not rolling, there's nothing to do here (locates are handled elsewhere).
5190          * 3.  if we're still at the same frame that we were last time, there's nothing to do.
5191          */
5192
5193         if (!_pending_locate_request && _session->transport_speed() != 0 && frame != last_update_frame) {
5194
5195                 last_update_frame = frame;
5196
5197                 if (!_dragging_playhead) {
5198                         playhead_cursor->set_position (frame);
5199                 }
5200
5201                 if (!_stationary_playhead) {
5202
5203                         if (!_dragging_playhead && _follow_playhead && _session->requested_return_frame() < 0 && !pending_visual_change.being_handled) {
5204                                 /* We only do this if we aren't already
5205                                    handling a visual change (ie if
5206                                    pending_visual_change.being_handled is
5207                                    false) so that these requests don't stack
5208                                    up there are too many of them to handle in
5209                                    time.
5210                                 */
5211                                 reset_x_origin_to_follow_playhead ();
5212                         }
5213
5214                 } else {
5215
5216                         /* don't do continuous scroll till the new position is in the rightmost quarter of the
5217                            editor canvas
5218                         */
5219 #if 0
5220                         // FIXME DO SOMETHING THAT WORKS HERE - this is 2.X code
5221                         double target = ((double)frame - (double)current_page_frames()/2.0) / frames_per_unit;
5222                         if (target <= 0.0) {
5223                                 target = 0.0;
5224                         }
5225                         if (fabs(target - current) < current_page_frames() / frames_per_unit) {
5226                                 target = (target * 0.15) + (current * 0.85);
5227                         } else {
5228                                 /* relax */
5229                         }
5230
5231                         current = target;
5232                         set_horizontal_position (current);
5233 #endif
5234                 }
5235
5236         }
5237 }
5238
5239
5240 void
5241 Editor::session_going_away ()
5242 {
5243         _have_idled = false;
5244
5245         _session_connections.drop_connections ();
5246
5247         super_rapid_screen_update_connection.disconnect ();
5248
5249         selection->clear ();
5250         cut_buffer->clear ();
5251
5252         clicked_regionview = 0;
5253         clicked_axisview = 0;
5254         clicked_routeview = 0;
5255         entered_regionview = 0;
5256         entered_track = 0;
5257         last_update_frame = 0;
5258         _drags->abort ();
5259
5260         playhead_cursor->canvas_item.hide ();
5261
5262         /* rip everything out of the list displays */
5263
5264         _regions->clear ();
5265         _routes->clear ();
5266         _route_groups->clear ();
5267
5268         /* do this first so that deleting a track doesn't reset cms to null
5269            and thus cause a leak.
5270         */
5271
5272         if (current_mixer_strip) {
5273                 if (current_mixer_strip->get_parent() != 0) {
5274                         global_hpacker.remove (*current_mixer_strip);
5275                 }
5276                 delete current_mixer_strip;
5277                 current_mixer_strip = 0;
5278         }
5279
5280         /* delete all trackviews */
5281
5282         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
5283                 delete *i;
5284         }
5285         track_views.clear ();
5286
5287         zoom_range_clock->set_session (0);
5288         nudge_clock->set_session (0);
5289
5290         editor_list_button.set_active(false);
5291         editor_list_button.set_sensitive(false);
5292
5293         /* clear tempo/meter rulers */
5294         remove_metric_marks ();
5295         hide_measures ();
5296         clear_marker_display ();
5297
5298         stop_step_editing ();
5299
5300         current_bbt_points_begin = current_bbt_points_end;
5301
5302         /* get rid of any existing editor mixer strip */
5303
5304         WindowTitle title(Glib::get_application_name());
5305         title += _("Editor");
5306
5307         set_title (title.get_string());
5308
5309         SessionHandlePtr::session_going_away ();
5310 }
5311
5312
5313 void
5314 Editor::show_editor_list (bool yn)
5315 {
5316         if (yn) {
5317                 _the_notebook.show ();
5318         } else {
5319                 _the_notebook.hide ();
5320         }
5321 }
5322
5323 void
5324 Editor::change_region_layering_order (bool from_context_menu)
5325 {
5326         const framepos_t position = get_preferred_edit_position (false, from_context_menu);
5327
5328         if (!clicked_routeview) {
5329                 if (layering_order_editor) {
5330                         layering_order_editor->hide ();
5331                 }
5332                 return;
5333         }
5334
5335         boost::shared_ptr<Track> track = boost::dynamic_pointer_cast<Track> (clicked_routeview->route());
5336
5337         if (!track) {
5338                 return;
5339         }
5340
5341         boost::shared_ptr<Playlist> pl = track->playlist();
5342
5343         if (!pl) {
5344                 return;
5345         }
5346
5347         if (layering_order_editor == 0) {
5348                 layering_order_editor = new RegionLayeringOrderEditor (*this);
5349                 layering_order_editor->set_position (WIN_POS_MOUSE);
5350         }
5351
5352         layering_order_editor->set_context (clicked_routeview->name(), _session, clicked_routeview, pl, position);
5353         layering_order_editor->maybe_present ();
5354 }
5355
5356 void
5357 Editor::update_region_layering_order_editor ()
5358 {
5359         if (layering_order_editor && layering_order_editor->is_visible ()) {
5360                 change_region_layering_order (true);
5361         }
5362 }
5363
5364 void
5365 Editor::setup_fade_images ()
5366 {
5367         _fade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadein-linear")));
5368         _fade_in_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadein-short-cut")));
5369         _fade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadein-slow-cut")));
5370         _fade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadein-fast-cut")));
5371         _fade_in_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadein-long-cut")));
5372
5373         _fade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
5374         _fade_out_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-short-cut")));
5375         _fade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
5376         _fade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
5377         _fade_out_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-long-cut")));
5378
5379         _xfade_in_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
5380         _xfade_in_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-short-cut")));
5381         _xfade_in_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
5382         _xfade_in_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
5383         _xfade_in_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-long-cut")));
5384
5385         _xfade_out_images[FadeLinear] = new Gtk::Image (get_icon_path (X_("fadeout-linear")));
5386         _xfade_out_images[FadeSymmetric] = new Gtk::Image (get_icon_path (X_("fadeout-short-cut")));
5387         _xfade_out_images[FadeFast] = new Gtk::Image (get_icon_path (X_("fadeout-slow-cut")));
5388         _xfade_out_images[FadeSlow] = new Gtk::Image (get_icon_path (X_("fadeout-fast-cut")));
5389         _xfade_out_images[FadeConstantPower] = new Gtk::Image (get_icon_path (X_("fadeout-long-cut")));
5390
5391 }
5392
5393 /** @return Gtk::manage()d menu item for a given action from `editor_actions' */
5394 Gtk::MenuItem&
5395 Editor::action_menu_item (std::string const & name)
5396 {
5397         Glib::RefPtr<Action> a = editor_actions->get_action (name);
5398         assert (a);
5399
5400         return *manage (a->create_menu_item ());
5401 }
5402
5403 void
5404 Editor::add_notebook_page (string const & name, Gtk::Widget& widget)
5405 {
5406         EventBox* b = manage (new EventBox);
5407         b->signal_button_press_event().connect (sigc::bind (sigc::mem_fun (*this, &Editor::notebook_tab_clicked), &widget));
5408         Label* l = manage (new Label (name));
5409         l->set_angle (-90);
5410         b->add (*l);
5411         b->show_all ();
5412         _the_notebook.append_page (widget, *b);
5413 }
5414
5415 bool
5416 Editor::notebook_tab_clicked (GdkEventButton* ev, Gtk::Widget* page)
5417 {
5418         if (ev->type == GDK_BUTTON_PRESS || ev->type == GDK_2BUTTON_PRESS) {
5419                 _the_notebook.set_current_page (_the_notebook.page_num (*page));
5420         }
5421
5422         if (ev->type == GDK_2BUTTON_PRESS) {
5423
5424                 /* double-click on a notebook tab shrinks or expands the notebook */
5425
5426                 if (_notebook_shrunk) {
5427                         if (pre_notebook_shrink_pane_width) {
5428                                 edit_pane.set_position (*pre_notebook_shrink_pane_width);
5429                         }
5430                         _notebook_shrunk = false;
5431                 } else {
5432                         pre_notebook_shrink_pane_width = edit_pane.get_position();
5433
5434                         /* this expands the LHS of the edit pane to cover the notebook
5435                            PAGE but leaves the tabs visible.
5436                          */
5437                         edit_pane.set_position (edit_pane.get_position() + page->get_width());
5438                         _notebook_shrunk = true;
5439                 }
5440         }
5441
5442         return true;
5443 }
5444
5445 void
5446 Editor::popup_control_point_context_menu (ArdourCanvas::Item* item, GdkEvent* event)
5447 {
5448         using namespace Menu_Helpers;
5449
5450         MenuList& items = _control_point_context_menu.items ();
5451         items.clear ();
5452
5453         items.push_back (MenuElem (_("Edit..."), sigc::bind (sigc::mem_fun (*this, &Editor::edit_control_point), item)));
5454         items.push_back (MenuElem (_("Delete"), sigc::bind (sigc::mem_fun (*this, &Editor::remove_control_point), item)));
5455         if (!can_remove_control_point (item)) {
5456                 items.back().set_sensitive (false);
5457         }
5458
5459         _control_point_context_menu.popup (event->button.button, event->button.time);
5460 }
5461
5462 void
5463 Editor::shift_key_released ()
5464 {
5465         _stepping_axis_view = 0;
5466 }