gtk2_ardour/editor.cc

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