gtk2_ardour/editor.cc

   1 /*
   2     Copyright (C) 2000-2006 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     $Id$
  19 */
  20
  21 #include <unistd.h>
  22 #include <cstdlib>
  23 #include <cmath>
  24 #include <string>
  25 #include <algorithm>
  26
  27 #include <sigc++/bind.h>
  28
  29 #include <pbd/convert.h>
  30 #include <pbd/error.h>
  31 #include <pbd/stacktrace.h>
  32 #include <pbd/memento_command.h>
  33
  34 #include <gtkmm/image.h>
  35 #include <gdkmm/color.h>
  36 #include <gdkmm/bitmap.h>
  37
  38 #include <gtkmm2ext/gtk_ui.h>
  39 #include <gtkmm2ext/tearoff.h>
  40 #include <gtkmm2ext/utils.h>
  41
  42 #include <ardour/audio_track.h>
  43 #include <ardour/audio_diskstream.h>
  44 #include <ardour/plugin_manager.h>
  45 #include <ardour/location.h>
  46 #include <ardour/audioplaylist.h>
  47 #include <ardour/audioregion.h>
  48 #include <ardour/region.h>
  49 #include <ardour/session_route.h>
  50 #include <ardour/tempo.h>
  51 #include <ardour/utils.h>
  52
  53 #include <control_protocol/control_protocol.h>
  54
  55 #include "ardour_ui.h"
  56 #include "editor.h"
  57 #include "grouped_buttons.h"
  58 #include "keyboard.h"
  59 #include "marker.h"
  60 #include "playlist_selector.h"
  61 #include "audio_region_view.h"
  62 #include "rgb_macros.h"
  63 #include "selection.h"
  64 #include "audio_streamview.h"
  65 #include "time_axis_view.h"
  66 #include "audio_time_axis.h"
  67 #include "utils.h"
  68 #include "crossfade_view.h"
  69 #include "editing.h"
  70 #include "public_editor.h"
  71 #include "crossfade_edit.h"
  72 #include "audio_time_axis.h"
  73 #include "canvas_impl.h"
  74 #include "actions.h"
  75 #include "gui_thread.h"
  76
  77 #ifdef FFT_ANALYSIS
  78 #include "analysis_window.h"
  79 #endif
  80
  81 #include "i18n.h"
  82
  83 /* <CMT Additions> */
  84 #include "imageframe_socket_handler.h"
  85 /* </CMT Additions> */
  86
  87 using namespace std;
  88 using namespace sigc;
  89 using namespace ARDOUR;
  90 using namespace PBD;
  91 using namespace Gtk;
  92 using namespace Glib;
  93 using namespace Gtkmm2ext;
  94 using namespace Editing;
  95
  96 using PBD::atoi;
  97
  98 const double Editor::timebar_height = 15.0;
  99
 100 #include "editor_xpms"
 101
 102 static const gchar *_snap_type_strings[] = {
 103         N_("None"),
 104         N_("CD Frames"),
 105         N_("SMPTE Frames"),
 106         N_("SMPTE Seconds"),
 107         N_("SMPTE Minutes"),
 108         N_("Seconds"),
 109         N_("Minutes"),
 110         N_("Beats/32"),
 111         N_("Beats/16"),
 112         N_("Beats/8"),
 113         N_("Beats/4"),
 114         N_("Beats/3"),
 115         N_("Beats"),
 116         N_("Bars"),
 117         N_("Marks"),
 118         N_("Edit Cursor"),
 119         N_("Region starts"),
 120         N_("Region ends"),
 121         N_("Region syncs"),
 122         N_("Region bounds"),
 123         0
 124 };
 125
 126 static const gchar *_snap_mode_strings[] = {
 127         N_("Normal"),
 128         N_("Magnetic"),
 129         0
 130 };
 131
 132 static const gchar *_zoom_focus_strings[] = {
 133         N_("Left"),
 134         N_("Right"),
 135         N_("Center"),
 136         N_("Playhead"),
 137         N_("Edit Cursor"),
 138         0
 139 };
 140
 141 /* Soundfile  drag-n-drop */
 142
 143 Gdk::Cursor* Editor::cross_hair_cursor = 0;
 144 Gdk::Cursor* Editor::selector_cursor = 0;
 145 Gdk::Cursor* Editor::trimmer_cursor = 0;
 146 Gdk::Cursor* Editor::grabber_cursor = 0;
 147 Gdk::Cursor* Editor::zoom_cursor = 0;
 148 Gdk::Cursor* Editor::time_fx_cursor = 0;
 149 Gdk::Cursor* Editor::fader_cursor = 0;
 150 Gdk::Cursor* Editor::speaker_cursor = 0;
 151 Gdk::Cursor* Editor::wait_cursor = 0;
 152 Gdk::Cursor* Editor::timebar_cursor = 0;
 153
 154 void
 155 show_me_the_size (Requisition* r, const char* what)
 156 {
 157         cerr << "size of " << what << " = " << r->width << " x " << r->height << endl;
 158 }
 159
 160 void
 161 check_adjustment (Gtk::Adjustment* adj)
 162 {
 163         cerr << "CHANGE adj  = "
 164              << adj->get_lower () <<  ' '
 165              << adj->get_upper () <<  ' '
 166              << adj->get_value () <<  ' '
 167              << adj->get_step_increment () <<  ' '
 168              << adj->get_page_increment () <<  ' '
 169              << adj->get_page_size () <<  ' '
 170              << endl;
 171
 172 }
 173
 174 Editor::Editor (AudioEngine& eng)
 175         : engine (eng),
 176
 177           /* time display buttons */
 178
 179           minsec_label (_("Mins:Secs")),
 180           bbt_label (_("Bars:Beats")),
 181           smpte_label (_("Timecode")),
 182           frame_label (_("Frames")),
 183           tempo_label (_("Tempo")),
 184           meter_label (_("Meter")),
 185           mark_label (_("Location Markers")),
 186           range_mark_label (_("Range Markers")),
 187           transport_mark_label (_("Loop/Punch Ranges")),
 188
 189           edit_packer (3, 3, false),
 190
 191           /* the values here don't matter: layout widgets
 192              reset them as needed.
 193           */
 194
 195           vertical_adjustment (0.0, 0.0, 10.0, 400.0),
 196           horizontal_adjustment (0.0, 0.0, 20.0, 1200.0),
 197
 198           /* tool bar related */
 199
 200           edit_cursor_clock (X_("editcursor"), false, X_("EditCursorClock"), true),
 201           zoom_range_clock (X_("zoomrange"), false, X_("ZoomRangeClock"), true, true),
 202
 203           toolbar_selection_clock_table (2,3),
 204
 205           automation_mode_button (_("mode")),
 206           global_automation_button (_("automation")),
 207
 208           /* <CMT Additions> */
 209           image_socket_listener(0),
 210           /* </CMT Additions> */
 211
 212           /* nudge */
 213
 214           nudge_clock (X_("nudge"), false, X_("NudgeClock"), true, true)
 215
 216 {
 217         constructed = false;
 218
 219         /* we are a singleton */
 220
 221         PublicEditor::_instance = this;
 222
 223         session = 0;
 224
 225         selection = new Selection;
 226         cut_buffer = new Selection;
 227
 228         selection->TimeChanged.connect (mem_fun(*this, &Editor::time_selection_changed));
 229         selection->TracksChanged.connect (mem_fun(*this, &Editor::track_selection_changed));
 230         selection->RegionsChanged.connect (mem_fun(*this, &Editor::region_selection_changed));
 231         selection->PointsChanged.connect (mem_fun(*this, &Editor::point_selection_changed));
 232
 233         clicked_regionview = 0;
 234         clicked_trackview = 0;
 235         clicked_audio_trackview = 0;
 236         clicked_crossfadeview = 0;
 237         clicked_control_point = 0;
 238         latest_regionview = 0;
 239         last_update_frame = 0;
 240         drag_info.item = 0;
 241         current_mixer_strip = 0;
 242         current_bbt_points = 0;
 243
 244         snap_type_strings = I18N (_snap_type_strings);
 245         snap_mode_strings = I18N (_snap_mode_strings);
 246         zoom_focus_strings = I18N(_zoom_focus_strings);
 247
 248         snap_type = SnapToFrame;
 249         set_snap_to (snap_type);
 250         snap_mode = SnapNormal;
 251         set_snap_mode (snap_mode);
 252         snap_threshold = 5.0;
 253         bbt_beat_subdivision = 4;
 254         canvas_width = 0;
 255         canvas_height = 0;
 256         autoscroll_active = false;
 257         autoscroll_timeout_tag = -1;
 258         interthread_progress_window = 0;
 259
 260 #ifdef FFT_ANALYSIS
 261         analysis_window = 0;
 262 #endif
 263
 264         current_interthread_info = 0;
 265         _show_measures = true;
 266         _show_waveforms = true;
 267         _show_waveforms_recording = true;
 268         first_action_message = 0;
 269         export_dialog = 0;
 270         show_gain_after_trim = false;
 271         ignore_route_list_reorder = false;
 272         no_route_list_redisplay = false;
 273         verbose_cursor_on = true;
 274         route_removal = false;
 275         track_spacing = 0;
 276         show_automatic_regions_in_region_list = true;
 277         region_list_sort_type = (Editing::RegionListSortType) 0;
 278         have_pending_keyboard_selection = false;
 279         _follow_playhead = true;
 280         _xfade_visibility = true;
 281         editor_ruler_menu = 0;
 282         no_ruler_shown_update = false;
 283         edit_group_list_menu = 0;
 284         route_list_menu = 0;
 285         region_list_menu = 0;
 286         marker_menu = 0;
 287         start_end_marker_menu = 0;
 288         range_marker_menu = 0;
 289         marker_menu_item = 0;
 290         tm_marker_menu = 0;
 291         transport_marker_menu = 0;
 292         new_transport_marker_menu = 0;
 293         editor_mixer_strip_width = Wide;
 294         show_editor_mixer_when_tracks_arrive = false;
 295         region_edit_menu_split_item = 0;
 296         temp_location = 0;
 297         region_edit_menu_split_multichannel_item = 0;
 298         leftmost_frame = 0;
 299         ignore_mouse_mode_toggle = false;
 300         current_stepping_trackview = 0;
 301         entered_track = 0;
 302         entered_regionview = 0;
 303         clear_entered_track = false;
 304         _new_regionviews_show_envelope = false;
 305         current_timestretch = 0;
 306         in_edit_group_row_change = false;
 307         last_canvas_frame = 0;
 308         edit_cursor = 0;
 309         playhead_cursor = 0;
 310         button_release_can_deselect = true;
 311         canvas_idle_queued = false;
 312         _dragging_playhead = false;
 313
 314         location_marker_color = color_map[cLocationMarker];
 315         location_range_color = color_map[cLocationRange];
 316         location_cd_marker_color = color_map[cLocationCDMarker];
 317         location_loop_color = color_map[cLocationLoop];
 318         location_punch_color = color_map[cLocationPunch];
 319
 320         range_marker_drag_rect = 0;
 321         marker_drag_line = 0;
 322
 323         set_mouse_mode (MouseObject, true);
 324
 325         frames_per_unit = 2048; /* too early to use reset_zoom () */
 326         reset_hscrollbar_stepping ();
 327
 328         zoom_focus = ZoomFocusLeft;
 329         set_zoom_focus (ZoomFocusLeft);
 330         zoom_range_clock.ValueChanged.connect (mem_fun(*this, &Editor::zoom_adjustment_changed));
 331
 332         initialize_rulers ();
 333         initialize_canvas ();
 334
 335         edit_controls_vbox.set_spacing (0);
 336         horizontal_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::canvas_horizontally_scrolled));
 337         vertical_adjustment.signal_value_changed().connect (mem_fun(*this, &Editor::tie_vertical_scrolling));
 338
 339         track_canvas.set_hadjustment (horizontal_adjustment);
 340         track_canvas.set_vadjustment (vertical_adjustment);
 341         time_canvas.set_hadjustment (horizontal_adjustment);
 342
 343         track_canvas.signal_map_event().connect (mem_fun (*this, &Editor::track_canvas_map_handler));
 344         time_canvas.signal_map_event().connect (mem_fun (*this, &Editor::time_canvas_map_handler));
 345
 346         controls_layout.add (edit_controls_vbox);
 347         controls_layout.set_name ("EditControlsBase");
 348         controls_layout.add_events (Gdk::SCROLL_MASK);
 349         controls_layout.signal_scroll_event().connect (mem_fun(*this, &Editor::control_layout_scroll), false);
 350
 351         controls_layout.add_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::ENTER_NOTIFY_MASK|Gdk::LEAVE_NOTIFY_MASK);
 352         controls_layout.signal_button_release_event().connect (mem_fun(*this, &Editor::edit_controls_button_release));
 353         controls_layout.signal_size_request().connect (mem_fun (*this, &Editor::controls_layout_size_request));
 354
 355         edit_vscrollbar.set_adjustment (vertical_adjustment);
 356         edit_hscrollbar.set_adjustment (horizontal_adjustment);
 357
 358         edit_hscrollbar.signal_button_press_event().connect (mem_fun(*this, &Editor::hscrollbar_button_press));
 359         edit_hscrollbar.signal_button_release_event().connect (mem_fun(*this, &Editor::hscrollbar_button_release));
 360         edit_hscrollbar.signal_size_allocate().connect (mem_fun(*this, &Editor::hscrollbar_allocate));
 361
 362         edit_hscrollbar.set_name ("EditorHScrollbar");
 363
 364         build_cursors ();
 365         setup_toolbar ();
 366
 367         edit_cursor_clock.ValueChanged.connect (mem_fun(*this, &Editor::edit_cursor_clock_changed));
 368
 369         time_canvas_vbox.pack_start (*minsec_ruler, false, false);
 370         time_canvas_vbox.pack_start (*smpte_ruler, false, false);
 371         time_canvas_vbox.pack_start (*frames_ruler, false, false);
 372         time_canvas_vbox.pack_start (*bbt_ruler, false, false);
 373         time_canvas_vbox.pack_start (time_canvas, true, true);
 374         time_canvas_vbox.set_size_request (-1, (int)(timebar_height * visible_timebars));
 375
 376         bbt_label.set_name ("EditorTimeButton");
 377         bbt_label.set_size_request (-1, (int)timebar_height);
 378         bbt_label.set_alignment (1.0, 0.5);
 379         bbt_label.set_padding (5,0);
 380         minsec_label.set_name ("EditorTimeButton");
 381         minsec_label.set_size_request (-1, (int)timebar_height);
 382         minsec_label.set_alignment (1.0, 0.5);
 383         minsec_label.set_padding (5,0);
 384         smpte_label.set_name ("EditorTimeButton");
 385         smpte_label.set_size_request (-1, (int)timebar_height);
 386         smpte_label.set_alignment (1.0, 0.5);
 387         smpte_label.set_padding (5,0);
 388         frame_label.set_name ("EditorTimeButton");
 389         frame_label.set_size_request (-1, (int)timebar_height);
 390         frame_label.set_alignment (1.0, 0.5);
 391         frame_label.set_padding (5,0);
 392         tempo_label.set_name ("EditorTimeButton");
 393         tempo_label.set_size_request (-1, (int)timebar_height);
 394         tempo_label.set_alignment (1.0, 0.5);
 395         tempo_label.set_padding (5,0);
 396         meter_label.set_name ("EditorTimeButton");
 397         meter_label.set_size_request (-1, (int)timebar_height);
 398         meter_label.set_alignment (1.0, 0.5);
 399         meter_label.set_padding (5,0);
 400         mark_label.set_name ("EditorTimeButton");
 401         mark_label.set_size_request (-1, (int)timebar_height);
 402         mark_label.set_alignment (1.0, 0.5);
 403         mark_label.set_padding (5,0);
 404         range_mark_label.set_name ("EditorTimeButton");
 405         range_mark_label.set_size_request (-1, (int)timebar_height);
 406         range_mark_label.set_alignment (1.0, 0.5);
 407         range_mark_label.set_padding (5,0);
 408         transport_mark_label.set_name ("EditorTimeButton");
 409         transport_mark_label.set_size_request (-1, (int)timebar_height);
 410         transport_mark_label.set_alignment (1.0, 0.5);
 411         transport_mark_label.set_padding (5,0);
 412
 413         time_button_vbox.pack_start (minsec_label, false, false);
 414         time_button_vbox.pack_start (smpte_label, false, false);
 415         time_button_vbox.pack_start (frame_label, false, false);
 416         time_button_vbox.pack_start (bbt_label, false, false);
 417         time_button_vbox.pack_start (meter_label, false, false);
 418         time_button_vbox.pack_start (tempo_label, false, false);
 419         time_button_vbox.pack_start (mark_label, false, false);
 420
 421         time_button_event_box.add (time_button_vbox);
 422
 423         time_button_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK);
 424         time_button_event_box.set_name ("TimebarLabelBase");
 425         time_button_event_box.signal_button_release_event().connect (mem_fun(*this, &Editor::ruler_label_button_release));
 426
 427         /* these enable us to have a dedicated window (for cursor setting, etc.)
 428            for the canvas areas.
 429         */
 430
 431         track_canvas_event_box.add (track_canvas);
 432
 433         time_canvas_event_box.add (time_canvas_vbox);
 434         time_canvas_event_box.set_events (Gdk::BUTTON_PRESS_MASK|Gdk::BUTTON_RELEASE_MASK|Gdk::POINTER_MOTION_MASK);
 435
 436         edit_packer.set_col_spacings (0);
 437         edit_packer.set_row_spacings (0);
 438         edit_packer.set_homogeneous (false);
 439         edit_packer.set_border_width (0);
 440         edit_packer.set_name ("EditorWindow");
 441
 442         edit_packer.attach (edit_vscrollbar,         0, 1, 1, 3,    FILL,        FILL|EXPAND, 0, 0);
 443
 444         edit_packer.attach (time_button_event_box,   1, 2, 0, 1,    FILL,        FILL, 0, 0);
 445         edit_packer.attach (time_canvas_event_box,   2, 3, 0, 1,    FILL|EXPAND, FILL, 0, 0);
 446
 447         edit_packer.attach (controls_layout,         1, 2, 1, 2,    FILL,        FILL|EXPAND, 0, 0);
 448         edit_packer.attach (track_canvas_event_box,  2, 3, 1, 2,    FILL|EXPAND, FILL|EXPAND, 0, 0);
 449
 450         edit_packer.attach (zoom_box,                1, 2, 2, 3,    FILL,         FILL, 0, 0);
 451         edit_packer.attach (edit_hscrollbar,         2, 3, 2, 3,    FILL|EXPAND,  FILL, 0, 0);
 452
 453         bottom_hbox.set_border_width (2);
 454         bottom_hbox.set_spacing (3);
 455
 456         route_display_model = ListStore::create(route_display_columns);
 457         route_list_display.set_model (route_display_model);
 458         route_list_display.append_column (_("Show"), route_display_columns.visible);
 459         route_list_display.append_column (_("Name"), route_display_columns.text);
 460         route_list_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 461         route_list_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 462         route_list_display.set_headers_visible (true);
 463         route_list_display.set_name ("TrackListDisplay");
 464         route_list_display.get_selection()->set_mode (SELECTION_NONE);
 465         route_list_display.set_reorderable (true);
 466         route_list_display.set_size_request (100,-1);
 467
 468         CellRendererToggle* route_list_visible_cell = dynamic_cast<CellRendererToggle*>(route_list_display.get_column_cell_renderer (0));
 469         route_list_visible_cell->property_activatable() = true;
 470         route_list_visible_cell->property_radio() = false;
 471
 472         route_display_model->signal_row_deleted().connect (mem_fun (*this, &Editor::route_list_delete));
 473         route_display_model->signal_row_changed().connect (mem_fun (*this, &Editor::route_list_change));
 474
 475         route_list_display.signal_button_press_event().connect (mem_fun (*this, &Editor::route_list_display_button_press), false);
 476
 477         route_list_scroller.add (route_list_display);
 478         route_list_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 479
 480         group_model = ListStore::create(group_columns);
 481         edit_group_display.set_model (group_model);
 482         edit_group_display.append_column (_("Name"), group_columns.text);
 483         edit_group_display.append_column (_("Active"), group_columns.is_active);
 484         edit_group_display.append_column (_("Show"), group_columns.is_visible);
 485         edit_group_display.get_column (0)->set_data (X_("colnum"), GUINT_TO_POINTER(0));
 486         edit_group_display.get_column (1)->set_data (X_("colnum"), GUINT_TO_POINTER(1));
 487         edit_group_display.get_column (2)->set_data (X_("colnum"), GUINT_TO_POINTER(2));
 488         edit_group_display.get_column (0)->set_expand (true);
 489         edit_group_display.get_column (1)->set_expand (false);
 490         edit_group_display.get_column (2)->set_expand (false);
 491         edit_group_display.set_headers_visible (true);
 492
 493         /* name is directly editable */
 494
 495         CellRendererText* name_cell = dynamic_cast<CellRendererText*>(edit_group_display.get_column_cell_renderer (0));
 496         name_cell->property_editable() = true;
 497         name_cell->signal_edited().connect (mem_fun (*this, &Editor::edit_group_name_edit));
 498
 499         /* use checkbox for the active + visible columns */
 500
 501         CellRendererToggle* active_cell = dynamic_cast<CellRendererToggle*>(edit_group_display.get_column_cell_renderer (1));
 502         active_cell->property_activatable() = true;
 503         active_cell->property_radio() = false;
 504
 505         active_cell = dynamic_cast<CellRendererToggle*>(edit_group_display.get_column_cell_renderer (1));
 506         active_cell->property_activatable() = true;
 507         active_cell->property_radio() = false;
 508
 509         group_model->signal_row_changed().connect (mem_fun (*this, &Editor::edit_group_row_change));
 510
 511         edit_group_display.set_name ("EditGroupList");
 512         edit_group_display.get_selection()->set_mode (SELECTION_SINGLE);
 513         edit_group_display.set_headers_visible (false);
 514         edit_group_display.set_reorderable (false);
 515         edit_group_display.set_rules_hint (true);
 516         edit_group_display.set_size_request (75, -1);
 517
 518         edit_group_display_scroller.add (edit_group_display);
 519         edit_group_display_scroller.set_policy (POLICY_AUTOMATIC, POLICY_AUTOMATIC);
 520
 521         edit_group_display.signal_button_press_event().connect (mem_fun(*this, &Editor::edit_group_list_button_press_event), false);
 522
 523         VBox* edit_group_display_packer = manage (new VBox());
 524         HBox* edit_group_display_button_box = manage (new HBox());
 525         edit_group_display_button_box->set_homogeneous (true);
 526
 527         Button* edit_group_add_button = manage (new Button ());
 528         Button* edit_group_remove_button = manage (new Button ());
 529
 530         Widget* w;
 531
 532         w = manage (new Image (Stock::ADD, ICON_SIZE_BUTTON));
 533         w->show();
 534         edit_group_add_button->add (*w);
 535
 536         w = manage (new Image (Stock::REMOVE, ICON_SIZE_BUTTON));
 537         w->show();
 538         edit_group_remove_button->add (*w);
 539
 540         edit_group_add_button->signal_clicked().connect (mem_fun (*this, &Editor::new_edit_group));
 541         edit_group_remove_button->signal_clicked().connect (mem_fun (*this, &Editor::remove_selected_edit_group));
 542
 543         edit_group_display_button_box->pack_start (*edit_group_add_button);
 544         edit_group_display_button_box->pack_start (*edit_group_remove_button);
 545
 546         edit_group_display_packer->pack_start (edit_group_display_scroller, true, true);
 547         edit_group_display_packer->pack_start (*edit_group_display_button_box, false, false);
 548
 549         region_list_display.set_size_request (100, -1);
 550         region_list_display.set_name ("RegionListDisplay");
 551
 552         region_list_model = TreeStore::create (region_list_columns);
 553         region_list_model->set_sort_func (0, mem_fun (*this, &Editor::region_list_sorter));
 554         region_list_model->set_sort_column (0, SORT_ASCENDING);
 555
 556         region_list_display.set_model (region_list_model);
 557         region_list_display.append_column (_("Regions"), region_list_columns.name);
 558         region_list_display.set_headers_visible (false);
 559
 560         region_list_display.get_selection()->set_select_function (mem_fun (*this, &Editor::region_list_selection_filter));
 561
 562         TreeViewColumn* tv_col = region_list_display.get_column(0);
 563         CellRendererText* renderer = dynamic_cast<CellRendererText*>(region_list_display.get_column_cell_renderer (0));
 564         tv_col->add_attribute(renderer->property_text(), region_list_columns.name);
 565         tv_col->add_attribute(renderer->property_foreground_gdk(), region_list_columns.color_);
 566
 567         region_list_display.get_selection()->set_mode (SELECTION_MULTIPLE);
 568         region_list_display.add_object_drag (region_list_columns.region.index(), "regions");
 569
 570         /* setup DnD handling */
 571
 572         list<TargetEntry> region_list_target_table;
 573
 574         region_list_target_table.push_back (TargetEntry ("text/plain"));
 575         region_list_target_table.push_back (TargetEntry ("text/uri-list"));
 576         region_list_target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 577
 578         region_list_display.add_drop_targets (region_list_target_table);
 579         region_list_display.signal_drag_data_received().connect (mem_fun(*this, &Editor::region_list_display_drag_data_received));
 580
 581         region_list_scroller.add (region_list_display);
 582         region_list_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 583
 584         region_list_display.signal_key_press_event().connect (mem_fun(*this, &Editor::region_list_display_key_press));
 585         region_list_display.signal_key_release_event().connect (mem_fun(*this, &Editor::region_list_display_key_release));
 586         region_list_display.signal_button_press_event().connect (mem_fun(*this, &Editor::region_list_display_button_press), false);
 587         region_list_display.signal_button_release_event().connect (mem_fun(*this, &Editor::region_list_display_button_release));
 588         region_list_display.get_selection()->signal_changed().connect (mem_fun(*this, &Editor::region_list_selection_changed));
 589         // region_list_display.signal_popup_menu().connect (bind (mem_fun (*this, &Editor::show_region_list_display_context_menu), 1, 0));
 590
 591         named_selection_scroller.add (named_selection_display);
 592         named_selection_scroller.set_policy (POLICY_NEVER, POLICY_AUTOMATIC);
 593
 594         named_selection_model = TreeStore::create (named_selection_columns);
 595         named_selection_display.set_model (named_selection_model);
 596         named_selection_display.append_column (_("Chunks"), named_selection_columns.text);
 597         named_selection_display.set_headers_visible (false);
 598         named_selection_display.set_size_request (100, -1);
 599         named_selection_display.set_name ("NamedSelectionDisplay");
 600
 601         named_selection_display.get_selection()->set_mode (SELECTION_SINGLE);
 602         named_selection_display.set_size_request (100, -1);
 603         named_selection_display.signal_button_release_event().connect (mem_fun(*this, &Editor::named_selection_display_button_release), false);
 604         named_selection_display.signal_key_release_event().connect (mem_fun(*this, &Editor::named_selection_display_key_release), false);
 605         named_selection_display.get_selection()->signal_changed().connect (mem_fun (*this, &Editor::named_selection_display_selection_changed));
 606
 607         /* SNAPSHOTS */
 608
 609         snapshot_display_model = ListStore::create (snapshot_display_columns);
 610         snapshot_display.set_model (snapshot_display_model);
 611         snapshot_display.append_column (X_("snapshot"), snapshot_display_columns.visible_name);
 612         snapshot_display.set_name ("SnapshotDisplay");
 613         snapshot_display.set_size_request (75, -1);
 614         snapshot_display.set_headers_visible (false);
 615         snapshot_display.set_reorderable (false);
 616         snapshot_display_scroller.add (snapshot_display);
 617         snapshot_display_scroller.set_policy (Gtk::POLICY_NEVER, Gtk::POLICY_AUTOMATIC);
 618
 619         snapshot_display.get_selection()->signal_changed().connect (mem_fun(*this, &Editor::snapshot_display_selection_changed));
 620         snapshot_display.signal_button_press_event().connect (mem_fun (*this, &Editor::snapshot_display_button_press), false);
 621
 622         Gtk::Label* nlabel;
 623
 624         nlabel = manage (new Label (_("Regions")));
 625         nlabel->set_angle (-90);
 626         the_notebook.append_page (region_list_scroller, *nlabel);
 627         nlabel = manage (new Label (_("Tracks/Busses")));
 628         nlabel->set_angle (-90);
 629         the_notebook.append_page (route_list_scroller, *nlabel);
 630         nlabel = manage (new Label (_("Snapshots")));
 631         nlabel->set_angle (-90);
 632         the_notebook.append_page (snapshot_display_scroller, *nlabel);
 633         nlabel = manage (new Label (_("Edit Groups")));
 634         nlabel->set_angle (-90);
 635         the_notebook.append_page (*edit_group_display_packer, *nlabel);
 636         nlabel = manage (new Label (_("Chunks")));
 637         nlabel->set_angle (-90);
 638         the_notebook.append_page (named_selection_scroller, *nlabel);
 639
 640         the_notebook.set_show_tabs (true);
 641         the_notebook.set_scrollable (true);
 642         the_notebook.popup_enable ();
 643         the_notebook.set_tab_pos (Gtk::POS_RIGHT);
 644
 645         post_maximal_editor_width = 0;
 646         post_maximal_pane_position = 0;
 647         edit_pane.pack1 (edit_packer, true, true);
 648         edit_pane.pack2 (the_notebook, false, true);
 649
 650         edit_pane.signal_size_allocate().connect (bind (mem_fun(*this, &Editor::pane_allocation_handler), static_cast<Paned*> (&edit_pane)));
 651
 652         top_hbox.pack_start (toolbar_frame, true, true);
 653
 654         HBox *hbox = manage (new HBox);
 655         hbox->pack_start (edit_pane, true, true);
 656
 657         global_vpacker.pack_start (top_hbox, false, false);
 658         global_vpacker.pack_start (*hbox, true, true);
 659
 660         global_hpacker.pack_start (global_vpacker, true, true);
 661
 662         set_name ("EditorWindow");
 663         add_accel_group (ActionManager::ui_manager->get_accel_group());
 664
 665         vpacker.pack_end (global_hpacker, true, true);
 666
 667         /* register actions now so that set_state() can find them and set toggles/checks etc */
 668
 669         register_actions ();
 670
 671         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
 672         set_state (*node);
 673
 674         _playlist_selector = new PlaylistSelector();
 675         _playlist_selector->signal_delete_event().connect (bind (sigc::ptr_fun (just_hide_it), static_cast<Window *> (_playlist_selector)));
 676
 677         RegionView::RegionViewGoingAway.connect (mem_fun(*this, &Editor::catch_vanishing_regionview));
 678
 679         /* nudge stuff */
 680
 681         nudge_forward_button.add (*(manage (new Image (::get_icon("nudge_right")))));
 682         nudge_backward_button.add (*(manage (new Image (::get_icon("nudge_left")))));
 683
 684         ARDOUR_UI::instance()->tooltips().set_tip (nudge_forward_button, _("Nudge Region/Selection Forwards"));
 685         ARDOUR_UI::instance()->tooltips().set_tip (nudge_backward_button, _("Nudge Region/Selection Backwards"));
 686
 687         nudge_forward_button.set_name ("TransportButton");
 688         nudge_backward_button.set_name ("TransportButton");
 689
 690         fade_context_menu.set_name ("ArdourContextMenu");
 691
 692         /* icons, titles, WM stuff */
 693
 694         list<Glib::RefPtr<Gdk::Pixbuf> > window_icons;
 695         Glib::RefPtr<Gdk::Pixbuf> icon;
 696
 697         if ((icon = ::get_icon ("ardour_icon_16px")) != 0) {
 698                 window_icons.push_back (icon);
 699         }
 700         if ((icon = ::get_icon ("ardour_icon_22px")) != 0) {
 701                 window_icons.push_back (icon);
 702         }
 703         if ((icon = ::get_icon ("ardour_icon_32px")) != 0) {
 704                 window_icons.push_back (icon);
 705         }
 706         if ((icon = ::get_icon ("ardour_icon_48px")) != 0) {
 707                 window_icons.push_back (icon);
 708         }
 709         if (!window_icons.empty()) {
 710                 set_icon_list (window_icons);
 711                 set_default_icon_list (window_icons);
 712         }
 713         set_title (_("ardour: editor"));
 714         set_wmclass (X_("ardour_editor"), "Ardour");
 715
 716         add (vpacker);
 717         add_events (Gdk::KEY_PRESS_MASK|Gdk::KEY_RELEASE_MASK);
 718
 719         signal_configure_event().connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::configure_handler));
 720         signal_delete_event().connect (mem_fun (*ARDOUR_UI::instance(), &ARDOUR_UI::exit_on_main_window_close));
 721
 722         /* allow external control surfaces/protocols to do various things */
 723
 724         ControlProtocol::ZoomToSession.connect (mem_fun (*this, &Editor::temporal_zoom_session));
 725         ControlProtocol::ZoomIn.connect (bind (mem_fun (*this, &Editor::temporal_zoom_step), false));
 726         ControlProtocol::ZoomOut.connect (bind (mem_fun (*this, &Editor::temporal_zoom_step), true));
 727         ControlProtocol::ScrollTimeline.connect (mem_fun (*this, &Editor::control_scroll));
 728
 729         Config->ParameterChanged.connect (mem_fun (*this, &Editor::parameter_changed));
 730
 731         constructed = true;
 732         instant_save ();
 733 }
 734
 735 Editor::~Editor()
 736 {
 737         /* <CMT Additions> */
 738         if(image_socket_listener)
 739         {
 740                 if(image_socket_listener->is_connected())
 741                 {
 742                         image_socket_listener->close_connection() ;
 743                 }
 744
 745                 delete image_socket_listener ;
 746                 image_socket_listener = 0 ;
 747         }
 748         /* </CMT Additions> */
 749 }
 750
 751 void
 752 Editor::add_toplevel_controls (Container& cont)
 753 {
 754         vpacker.pack_start (cont, false, false);
 755         cont.show_all ();
 756 }
 757
 758 void
 759 Editor::catch_vanishing_regionview (RegionView *rv)
 760 {
 761         /* note: the selection will take care of the vanishing
 762            audioregionview by itself.
 763         */
 764
 765         if (clicked_regionview == rv) {
 766                 clicked_regionview = 0;
 767         }
 768
 769         if (entered_regionview == rv) {
 770                 set_entered_regionview (0);
 771         }
 772 }
 773
 774 void
 775 Editor::set_entered_regionview (RegionView* rv)
 776 {
 777         if (rv == entered_regionview) {
 778                 return;
 779         }
 780
 781         if (entered_regionview) {
 782                 entered_regionview->exited ();
 783         }
 784
 785         if ((entered_regionview = rv) != 0) {
 786                 entered_regionview->entered ();
 787         }
 788 }
 789
 790 void
 791 Editor::set_entered_track (TimeAxisView* tav)
 792 {
 793         if (entered_track) {
 794                 entered_track->exited ();
 795         }
 796
 797         if ((entered_track = tav) != 0) {
 798                 entered_track->entered ();
 799         }
 800 }
 801
 802 void
 803 Editor::show_window ()
 804 {
 805         show_all ();
 806         present ();
 807
 808         /* now reset all audio_time_axis heights, because widgets might need
 809            to be re-hidden
 810         */
 811
 812         TimeAxisView *tv;
 813
 814         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 815                 tv = (static_cast<TimeAxisView*>(*i));
 816                 tv->reset_height ();
 817         }
 818 }
 819
 820 void
 821 Editor::tie_vertical_scrolling ()
 822 {
 823         double y1 = vertical_adjustment.get_value();
 824         controls_layout.get_vadjustment()->set_value (y1);
 825         playhead_cursor->set_y_axis(y1);
 826         edit_cursor->set_y_axis(y1);
 827 }
 828
 829 void
 830 Editor::instant_save ()
 831 {
 832         if (!constructed || !ARDOUR_UI::instance()->session_loaded) {
 833                 return;
 834         }
 835
 836         if (session) {
 837                 session->add_instant_xml(get_state(), session->path());
 838         } else {
 839                 Config->add_instant_xml(get_state(), get_user_ardour_path());
 840         }
 841 }
 842
 843 void
 844 Editor::edit_cursor_clock_changed()
 845 {
 846         if (edit_cursor->current_frame != edit_cursor_clock.current_time()) {
 847                 edit_cursor->set_position (edit_cursor_clock.current_time());
 848         }
 849 }
 850
 851
 852 void
 853 Editor::zoom_adjustment_changed ()
 854 {
 855         if (session == 0) {
 856                 return;
 857         }
 858
 859         double fpu = zoom_range_clock.current_duration() / canvas_width;
 860
 861         if (fpu < 1.0) {
 862                 fpu = 1.0;
 863                 zoom_range_clock.set ((nframes_t) floor (fpu * canvas_width));
 864         } else if (fpu > session->current_end_frame() / canvas_width) {
 865                 fpu = session->current_end_frame() / canvas_width;
 866                 zoom_range_clock.set ((nframes_t) floor (fpu * canvas_width));
 867         }
 868
 869         temporal_zoom (fpu);
 870 }
 871
 872 void
 873 Editor::control_scroll (float fraction)
 874 {
 875         ENSURE_GUI_THREAD(bind (mem_fun (*this, &Editor::control_scroll), fraction));
 876
 877         if (!session) {
 878                 return;
 879         }
 880
 881         double step = fraction * current_page_frames();
 882         nframes_t target;
 883
 884         if ((fraction < 0.0f) && (session->transport_frame() < (nframes_t) fabs(step))) {
 885                 target = 0;
 886         } else if ((fraction > 0.0f) && (max_frames - session->transport_frame() < step)) {
 887                 target = (max_frames - (current_page_frames()*2)); // allow room for slop in where the PH is on the screen
 888         } else {
 889                 target = (session->transport_frame() + (nframes_t) floor ((fraction * current_page_frames())));
 890         }
 891
 892         /* move visuals, we'll catch up with it later */
 893
 894         playhead_cursor->set_position (target);
 895
 896         if (target > (current_page_frames() / 2)) {
 897                 /* try to center PH in window */
 898                 reset_x_origin (target - (current_page_frames()/2));
 899         } else {
 900                 reset_x_origin (0);
 901         }
 902
 903         /* cancel the existing */
 904
 905         control_scroll_connection.disconnect ();
 906
 907         /* add the next one */
 908
 909         control_scroll_connection = Glib::signal_timeout().connect (bind (mem_fun (*this, &Editor::deferred_control_scroll), target), 50);
 910 }
 911
 912 bool
 913 Editor::deferred_control_scroll (nframes_t target)
 914 {
 915         session->request_locate (target);
 916         return false;
 917 }
 918
 919 void
 920 Editor::on_realize ()
 921 {
 922         Window::on_realize ();
 923         Realized ();
 924 }
 925
 926 void
 927 Editor::start_scrolling ()
 928 {
 929         scroll_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect
 930                 (mem_fun(*this, &Editor::update_current_screen));
 931 }
 932
 933 void
 934 Editor::stop_scrolling ()
 935 {
 936         scroll_connection.disconnect ();
 937 }
 938
 939 void
 940 Editor::map_position_change (nframes_t frame)
 941 {
 942         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::map_position_change), frame));
 943
 944         if (session == 0 || !_follow_playhead) {
 945                 return;
 946         }
 947
 948         center_screen (frame);
 949         playhead_cursor->set_position (frame);
 950 }
 951
 952 void
 953 Editor::center_screen (nframes_t frame)
 954 {
 955         double page = canvas_width * frames_per_unit;
 956
 957         /* if we're off the page, then scroll.
 958          */
 959
 960         if (frame < leftmost_frame || frame >= leftmost_frame + page) {
 961                 center_screen_internal (frame, page);
 962         }
 963 }
 964
 965 void
 966 Editor::center_screen_internal (nframes_t frame, float page)
 967 {
 968         page /= 2;
 969
 970         if (frame > page) {
 971                 frame -= (nframes_t) page;
 972         } else {
 973                 frame = 0;
 974         }
 975
 976         reset_x_origin (frame);
 977 }
 978
 979 void
 980 Editor::handle_new_duration ()
 981 {
 982         ENSURE_GUI_THREAD (mem_fun (*this, &Editor::handle_new_duration));
 983
 984         nframes_t new_end = session->get_maximum_extent() + (nframes_t) floorf (current_page_frames() * 0.10f);
 985
 986         if (new_end > last_canvas_frame) {
 987                 last_canvas_frame = new_end;
 988                 reset_scrolling_region ();
 989         }
 990
 991         horizontal_adjustment.set_value (leftmost_frame/frames_per_unit);
 992 }
 993
 994 void
 995 Editor::update_title_s (const string & snap_name)
 996 {
 997         ENSURE_GUI_THREAD(bind (mem_fun(*this, &Editor::update_title_s), snap_name));
 998
 999         update_title ();
1000 }
1001
1002 void
1003 Editor::update_title ()
1004 {
1005         ENSURE_GUI_THREAD (mem_fun(*this, &Editor::update_title));
1006
1007         if (session) {
1008                 bool dirty = session->dirty();
1009
1010                 string wintitle = _("ardour: editor: ");
1011
1012                 if (dirty) {
1013                         wintitle += '[';
1014                 }
1015
1016                 wintitle += session->name();
1017
1018                 if (session->snap_name() != session->name()) {
1019                         wintitle += ':';
1020                         wintitle += session->snap_name();
1021                 }
1022
1023                 if (dirty) {
1024                         wintitle += ']';
1025                 }
1026
1027                 set_title (wintitle);
1028         }
1029 }
1030
1031 void
1032 Editor::connect_to_session (Session *t)
1033 {
1034         session = t;
1035
1036         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
1037         set_state (*node);
1038
1039         /* catch up with the playhead */
1040
1041         session->request_locate (playhead_cursor->current_frame);
1042
1043         if (first_action_message) {
1044                 first_action_message->hide();
1045         }
1046
1047         update_title ();
1048
1049         session->GoingAway.connect (mem_fun(*this, &Editor::session_going_away));
1050         session->history().Changed.connect (mem_fun (*this, &Editor::history_changed));
1051
1052         /* These signals can all be emitted by a non-GUI thread. Therefore the
1053            handlers for them must not attempt to directly interact with the GUI,
1054            but use Gtkmm2ext::UI::instance()->call_slot();
1055         */
1056
1057         session_connections.push_back (session->TransportStateChange.connect (mem_fun(*this, &Editor::map_transport_state)));
1058         session_connections.push_back (session->PositionChanged.connect (mem_fun(*this, &Editor::map_position_change)));
1059         session_connections.push_back (session->RouteAdded.connect (mem_fun(*this, &Editor::handle_new_route)));
1060         session_connections.push_back (session->AudioRegionAdded.connect (mem_fun(*this, &Editor::handle_new_audio_region)));
1061         session_connections.push_back (session->AudioRegionRemoved.connect (mem_fun(*this, &Editor::handle_audio_region_removed)));
1062         session_connections.push_back (session->DurationChanged.connect (mem_fun(*this, &Editor::handle_new_duration)));
1063         session_connections.push_back (session->edit_group_added.connect (mem_fun(*this, &Editor::add_edit_group)));
1064         session_connections.push_back (session->edit_group_removed.connect (mem_fun(*this, &Editor::edit_groups_changed)));
1065         session_connections.push_back (session->NamedSelectionAdded.connect (mem_fun(*this, &Editor::handle_new_named_selection)));
1066         session_connections.push_back (session->NamedSelectionRemoved.connect (mem_fun(*this, &Editor::handle_new_named_selection)));
1067         session_connections.push_back (session->DirtyChanged.connect (mem_fun(*this, &Editor::update_title)));
1068         session_connections.push_back (session->StateSaved.connect (mem_fun(*this, &Editor::update_title_s)));
1069         session_connections.push_back (session->AskAboutPlaylistDeletion.connect (mem_fun(*this, &Editor::playlist_deletion_dialog)));
1070         session_connections.push_back (session->RegionHiddenChange.connect (mem_fun(*this, &Editor::region_hidden)));
1071
1072         session_connections.push_back (session->SMPTEOffsetChanged.connect (mem_fun(*this, &Editor::update_just_smpte)));
1073
1074         session_connections.push_back (session->tempo_map().StateChanged.connect (mem_fun(*this, &Editor::tempo_map_changed)));
1075
1076         edit_groups_changed ();
1077
1078         edit_cursor_clock.set_session (session);
1079         zoom_range_clock.set_session (session);
1080         _playlist_selector->set_session (session);
1081         nudge_clock.set_session (session);
1082
1083 #ifdef FFT_ANALYSIS
1084         if (analysis_window != 0)
1085                 analysis_window->set_session (session);
1086 #endif
1087
1088         Location* loc = session->locations()->auto_loop_location();
1089         if (loc == 0) {
1090                 loc = new Location (0, session->current_end_frame(), _("Loop"),(Location::Flags) (Location::IsAutoLoop | Location::IsHidden));
1091                 if (loc->start() == loc->end()) {
1092                         loc->set_end (loc->start() + 1);
1093                 }
1094                 session->locations()->add (loc, false);
1095                 session->set_auto_loop_location (loc);
1096         }
1097         else {
1098                 // force name
1099                 loc->set_name (_("Loop"));
1100         }
1101
1102         loc = session->locations()->auto_punch_location();
1103         if (loc == 0) {
1104                 loc = new Location (0, session->current_end_frame(), _("Punch"), (Location::Flags) (Location::IsAutoPunch | Location::IsHidden));
1105                 if (loc->start() == loc->end()) {
1106                         loc->set_end (loc->start() + 1);
1107                 }
1108                 session->locations()->add (loc, false);
1109                 session->set_auto_punch_location (loc);
1110         }
1111         else {
1112                 // force name
1113                 loc->set_name (_("Punch"));
1114         }
1115
1116         Config->map_parameters (mem_fun (*this, &Editor::parameter_changed));
1117
1118         session->StateSaved.connect (mem_fun(*this, &Editor::session_state_saved));
1119
1120         refresh_location_display ();
1121         session->locations()->added.connect (mem_fun(*this, &Editor::add_new_location));
1122         session->locations()->removed.connect (mem_fun(*this, &Editor::location_gone));
1123         session->locations()->changed.connect (mem_fun(*this, &Editor::refresh_location_display));
1124         session->locations()->StateChanged.connect (mem_fun(*this, &Editor::refresh_location_display_s));
1125         session->locations()->end_location()->changed.connect (mem_fun(*this, &Editor::end_location_changed));
1126
1127         handle_new_duration ();
1128
1129         redisplay_regions ();
1130         redisplay_named_selections ();
1131         redisplay_snapshots ();
1132
1133         initial_route_list_display ();
1134
1135         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
1136                 (static_cast<TimeAxisView*>(*i))->set_samples_per_unit (frames_per_unit);
1137         }
1138
1139         restore_ruler_visibility ();
1140         //tempo_map_changed (Change (0));
1141         session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks);
1142
1143         start_scrolling ();
1144
1145         /* don't show master bus in a new session */
1146
1147         if (ARDOUR_UI::instance()->session_is_new ()) {
1148
1149                 TreeModel::Children rows = route_display_model->children();
1150                 TreeModel::Children::iterator i;
1151
1152                 no_route_list_redisplay = true;
1153
1154                 for (i = rows.begin(); i != rows.end(); ++i) {
1155                         TimeAxisView *tv =  (*i)[route_display_columns.tv];
1156                         AudioTimeAxisView *atv;
1157
1158                         if ((atv = dynamic_cast<AudioTimeAxisView*>(tv)) != 0) {
1159                                 if (atv->route()->master()) {
1160                                         route_list_display.get_selection()->unselect (i);
1161                                 }
1162                         }
1163                 }
1164
1165                 no_route_list_redisplay = false;
1166                 redisplay_route_list ();
1167         }
1168
1169         /* register for undo history */
1170
1171         session->register_with_memento_command_factory(_id, this);
1172 }
1173
1174 void
1175 Editor::build_cursors ()
1176 {
1177         using namespace Gdk;
1178
1179         Gdk::Color mbg ("#000000" ); /* Black */
1180         Gdk::Color mfg ("#0000ff" ); /* Blue. */
1181
1182         {
1183                 RefPtr<Bitmap> source, mask;
1184                 source = Bitmap::create (mag_bits, mag_width, mag_height);
1185                 mask = Bitmap::create (magmask_bits, mag_width, mag_height);
1186                 zoom_cursor = new Gdk::Cursor (source, mask, mfg, mbg, mag_x_hot, mag_y_hot);
1187         }
1188
1189         Gdk::Color fbg ("#ffffff" );
1190         Gdk::Color ffg  ("#000000" );
1191
1192         {
1193                 RefPtr<Bitmap> source, mask;
1194
1195                 source = Bitmap::create (fader_cursor_bits, fader_cursor_width, fader_cursor_height);
1196                 mask = Bitmap::create (fader_cursor_mask_bits, fader_cursor_width, fader_cursor_height);
1197                 fader_cursor = new Gdk::Cursor (source, mask, ffg, fbg, fader_cursor_x_hot, fader_cursor_y_hot);
1198         }
1199
1200         {
1201                 RefPtr<Bitmap> source, mask;
1202                 source = Bitmap::create (speaker_cursor_bits, speaker_cursor_width, speaker_cursor_height);
1203                 mask = Bitmap::create (speaker_cursor_mask_bits, speaker_cursor_width, speaker_cursor_height);
1204                 speaker_cursor = new Gdk::Cursor (source, mask, ffg, fbg, speaker_cursor_x_hot, speaker_cursor_y_hot);
1205         }
1206
1207         grabber_cursor = new Gdk::Cursor (HAND2);
1208         cross_hair_cursor = new Gdk::Cursor (CROSSHAIR);
1209         trimmer_cursor =  new Gdk::Cursor (SB_H_DOUBLE_ARROW);
1210         selector_cursor = new Gdk::Cursor (XTERM);
1211         time_fx_cursor = new Gdk::Cursor (SIZING);
1212         wait_cursor = new Gdk::Cursor  (WATCH);
1213         timebar_cursor = new Gdk::Cursor(LEFT_PTR);
1214 }
1215
1216 void
1217 Editor::popup_fade_context_menu (int button, int32_t time, ArdourCanvas::Item* item, ItemType item_type)
1218 {
1219         using namespace Menu_Helpers;
1220         AudioRegionView* arv = static_cast<AudioRegionView*> (item->get_data ("regionview"));
1221
1222         if (arv == 0) {
1223                 fatal << _("programming error: fade in canvas item has no regionview data pointer!") << endmsg;
1224                 /*NOTREACHED*/
1225         }
1226
1227         MenuList& items (fade_context_menu.items());
1228
1229         items.clear ();
1230
1231         switch (item_type) {
1232         case FadeInItem:
1233         case FadeInHandleItem:
1234                 if (arv->audio_region()->fade_in_active()) {
1235                         items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*this, &Editor::set_fade_in_active), false)));
1236                 } else {
1237                         items.push_back (MenuElem (_("Activate"), bind (mem_fun (*this, &Editor::set_fade_in_active), true)));
1238                 }
1239
1240                 items.push_back (SeparatorElem());
1241
1242                 items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Linear)));
1243                 items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogB)));
1244                 items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Fast)));
1245                 items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::LogA)));
1246                 items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_in_shape), AudioRegion::Slow)));
1247                 break;
1248
1249         case FadeOutItem:
1250         case FadeOutHandleItem:
1251                 if (arv->audio_region()->fade_out_active()) {
1252                         items.push_back (MenuElem (_("Deactivate"), bind (mem_fun (*this, &Editor::set_fade_out_active), false)));
1253                 } else {
1254                         items.push_back (MenuElem (_("Activate"), bind (mem_fun (*this, &Editor::set_fade_out_active), true)));
1255                 }
1256
1257                 items.push_back (SeparatorElem());
1258
1259                 items.push_back (MenuElem (_("Linear"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Linear)));
1260                 items.push_back (MenuElem (_("Slowest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Fast)));
1261                 items.push_back (MenuElem (_("Slow"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogB)));
1262                 items.push_back (MenuElem (_("Fast"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::LogA)));
1263                 items.push_back (MenuElem (_("Fastest"), bind (mem_fun (*this, &Editor::set_fade_out_shape), AudioRegion::Slow)));
1264
1265                 break;
1266
1267         default:
1268                 fatal << _("programming error: ")
1269                       << X_("non-fade canvas item passed to popup_fade_context_menu()")
1270                       << endmsg;
1271                 /*NOTREACHED*/
1272         }
1273
1274         fade_context_menu.popup (button, time);
1275 }
1276
1277 void
1278 Editor::popup_track_context_menu (int button, int32_t time, ItemType item_type, bool with_selection, nframes_t frame)
1279 {
1280         using namespace Menu_Helpers;
1281         Menu* (Editor::*build_menu_function)(nframes_t);
1282         Menu *menu;
1283
1284         switch (item_type) {
1285         case RegionItem:
1286         case RegionViewName:
1287         case RegionViewNameHighlight:
1288                 if (with_selection) {
1289                         build_menu_function = &Editor::build_track_selection_context_menu;
1290                 } else {
1291                         build_menu_function = &Editor::build_track_region_context_menu;
1292                 }
1293                 break;
1294
1295         case SelectionItem:
1296                 if (with_selection) {
1297                         build_menu_function = &Editor::build_track_selection_context_menu;
1298                 } else {
1299                         build_menu_function = &Editor::build_track_context_menu;
1300                 }
1301                 break;
1302
1303         case CrossfadeViewItem:
1304                 build_menu_function = &Editor::build_track_crossfade_context_menu;
1305                 break;
1306
1307         case StreamItem:
1308                 if (clicked_audio_trackview->get_diskstream()) {
1309                         build_menu_function = &Editor::build_track_context_menu;
1310                 } else {
1311                         build_menu_function = &Editor::build_track_bus_context_menu;
1312                 }
1313                 break;
1314
1315         default:
1316                 /* probably shouldn't happen but if it does, we don't care */
1317                 return;
1318         }
1319
1320         menu = (this->*build_menu_function)(frame);
1321         menu->set_name ("ArdourContextMenu");
1322
1323         /* now handle specific situations */
1324
1325         switch (item_type) {
1326         case RegionItem:
1327         case RegionViewName:
1328         case RegionViewNameHighlight:
1329                 if (!with_selection) {
1330                         if (region_edit_menu_split_item) {
1331                                 if (clicked_regionview && clicked_regionview->region()->covers (edit_cursor->current_frame)) {
1332                                         ActionManager::set_sensitive (ActionManager::edit_cursor_in_region_sensitive_actions, true);
1333                                 } else {
1334                                         ActionManager::set_sensitive (ActionManager::edit_cursor_in_region_sensitive_actions, false);
1335                                 }
1336                         }
1337                         /*
1338                         if (region_edit_menu_split_multichannel_item) {
1339                                 if (clicked_regionview && clicked_regionview->region().n_channels() > 1) {
1340                                         // GTK2FIX find the action, change its sensitivity
1341                                         // region_edit_menu_split_multichannel_item->set_sensitive (true);
1342                                 } else {
1343                                         // GTK2FIX see above
1344                                         // region_edit_menu_split_multichannel_item->set_sensitive (false);
1345                                 }
1346                         }*/
1347                 }
1348                 break;
1349
1350         case SelectionItem:
1351                 break;
1352
1353         case CrossfadeViewItem:
1354                 break;
1355
1356         case StreamItem:
1357                 break;
1358
1359         default:
1360                 /* probably shouldn't happen but if it does, we don't care */
1361                 return;
1362         }
1363
1364         if (clicked_audio_trackview && clicked_audio_trackview->audio_track()) {
1365
1366                 /* Bounce to disk */
1367
1368                 using namespace Menu_Helpers;
1369                 MenuList& edit_items  = menu->items();
1370
1371                 edit_items.push_back (SeparatorElem());
1372
1373                 switch (clicked_audio_trackview->audio_track()->freeze_state()) {
1374                 case AudioTrack::NoFreeze:
1375                         edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
1376                         break;
1377
1378                 case AudioTrack::Frozen:
1379                         edit_items.push_back (MenuElem (_("Unfreeze"), mem_fun(*this, &Editor::unfreeze_route)));
1380                         break;
1381
1382                 case AudioTrack::UnFrozen:
1383                         edit_items.push_back (MenuElem (_("Freeze"), mem_fun(*this, &Editor::freeze_route)));
1384                         break;
1385                 }
1386
1387         }
1388
1389         menu->popup (button, time);
1390 }
1391
1392 Menu*
1393 Editor::build_track_context_menu (nframes_t ignored)
1394 {
1395         using namespace Menu_Helpers;
1396
1397         MenuList& edit_items = track_context_menu.items();
1398         edit_items.clear();
1399
1400         add_dstream_context_items (edit_items);
1401         return &track_context_menu;
1402 }
1403
1404 Menu*
1405 Editor::build_track_bus_context_menu (nframes_t ignored)
1406 {
1407         using namespace Menu_Helpers;
1408
1409         MenuList& edit_items = track_context_menu.items();
1410         edit_items.clear();
1411
1412         add_bus_context_items (edit_items);
1413         return &track_context_menu;
1414 }
1415
1416 Menu*
1417 Editor::build_track_region_context_menu (nframes_t frame)
1418 {
1419         using namespace Menu_Helpers;
1420         MenuList& edit_items  = track_region_context_menu.items();
1421         edit_items.clear();
1422
1423         AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_trackview);
1424
1425         if (atv) {
1426                 boost::shared_ptr<Diskstream> ds;
1427                 boost::shared_ptr<Playlist> pl;
1428
1429                 if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()))) {
1430                         Playlist::RegionList* regions = pl->regions_at ((nframes_t) floor ( (double)frame * ds->speed()));
1431                         for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
1432                                 add_region_context_items (atv->audio_view(), (*i), edit_items);
1433                         }
1434                         delete regions;
1435                 }
1436         }
1437
1438         add_dstream_context_items (edit_items);
1439
1440         return &track_region_context_menu;
1441 }
1442
1443 Menu*
1444 Editor::build_track_crossfade_context_menu (nframes_t frame)
1445 {
1446         using namespace Menu_Helpers;
1447         MenuList& edit_items  = track_crossfade_context_menu.items();
1448         edit_items.clear ();
1449
1450         AudioTimeAxisView* atv = dynamic_cast<AudioTimeAxisView*> (clicked_trackview);
1451
1452         if (atv) {
1453                 boost::shared_ptr<Diskstream> ds;
1454                 boost::shared_ptr<Playlist> pl;
1455                 boost::shared_ptr<AudioPlaylist> apl;
1456
1457                 if ((ds = atv->get_diskstream()) && ((pl = ds->playlist()) != 0) && ((apl = boost::dynamic_pointer_cast<AudioPlaylist> (pl)) != 0)) {
1458
1459                         Playlist::RegionList* regions = pl->regions_at (frame);
1460                         AudioPlaylist::Crossfades xfades;
1461
1462                         apl->crossfades_at (frame, xfades);
1463
1464                         bool many = xfades.size() > 1;
1465
1466                         for (AudioPlaylist::Crossfades::iterator i = xfades.begin(); i != xfades.end(); ++i) {
1467                                 add_crossfade_context_items (atv->audio_view(), (*i), edit_items, many);
1468                         }
1469
1470                         for (Playlist::RegionList::iterator i = regions->begin(); i != regions->end(); ++i) {
1471                                 add_region_context_items (atv->audio_view(), (*i), edit_items);
1472                         }
1473
1474                         delete regions;
1475                 }
1476         }
1477
1478         add_dstream_context_items (edit_items);
1479
1480         return &track_crossfade_context_menu;
1481 }
1482
1483 #ifdef FFT_ANALYSIS
1484 void
1485 Editor::analyze_region_selection()
1486 {
1487         if (analysis_window == 0) {
1488                 analysis_window = new AnalysisWindow();
1489
1490                 if (session != 0)
1491                         analysis_window->set_session(session);
1492
1493                 analysis_window->show_all();
1494         }
1495
1496         analysis_window->set_regionmode();
1497         analysis_window->analyze();
1498
1499         analysis_window->present();
1500 }
1501
1502 void
1503 Editor::analyze_range_selection()
1504 {
1505         if (analysis_window == 0) {
1506                 analysis_window = new AnalysisWindow();
1507
1508                 if (session != 0)
1509                         analysis_window->set_session(session);
1510
1511                 analysis_window->show_all();
1512         }
1513
1514         analysis_window->set_rangemode();
1515         analysis_window->analyze();
1516
1517         analysis_window->present();
1518 }
1519 #endif /* FFT_ANALYSIS */
1520
1521
1522
1523 Menu*
1524 Editor::build_track_selection_context_menu (nframes_t ignored)
1525 {
1526         using namespace Menu_Helpers;
1527         MenuList& edit_items  = track_selection_context_menu.items();
1528         edit_items.clear ();
1529
1530         add_selection_context_items (edit_items);
1531         add_dstream_context_items (edit_items);
1532
1533         return &track_selection_context_menu;
1534 }
1535
1536 void
1537 Editor::add_crossfade_context_items (AudioStreamView* view, boost::shared_ptr<Crossfade> xfade, Menu_Helpers::MenuList& edit_items, bool many)
1538 {
1539         using namespace Menu_Helpers;
1540         Menu     *xfade_menu = manage (new Menu);
1541         MenuList& items       = xfade_menu->items();
1542         xfade_menu->set_name ("ArdourContextMenu");
1543         string str;
1544
1545         if (xfade->active()) {
1546                 str = _("Mute");
1547         } else {
1548                 str = _("Unmute");
1549         }
1550
1551         items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::toggle_xfade_active), boost::weak_ptr<Crossfade> (xfade))));
1552         items.push_back (MenuElem (_("Edit"), bind (mem_fun(*this, &Editor::edit_xfade), boost::weak_ptr<Crossfade> (xfade))));
1553
1554         if (xfade->can_follow_overlap()) {
1555
1556                 if (xfade->following_overlap()) {
1557                         str = _("Convert to short");
1558                 } else {
1559                         str = _("Convert to full");
1560                 }
1561
1562                 items.push_back (MenuElem (str, bind (mem_fun(*this, &Editor::toggle_xfade_length), xfade)));
1563         }
1564
1565         if (many) {
1566                 str = xfade->out()->name();
1567                 str += "->";
1568                 str += xfade->in()->name();
1569         } else {
1570                 str = _("Crossfade");
1571         }
1572
1573         edit_items.push_back (MenuElem (str, *xfade_menu));
1574         edit_items.push_back (SeparatorElem());
1575 }
1576
1577 void
1578 Editor::xfade_edit_left_region ()
1579 {
1580         if (clicked_crossfadeview) {
1581                 clicked_crossfadeview->left_view.show_region_editor ();
1582         }
1583 }
1584
1585 void
1586 Editor::xfade_edit_right_region ()
1587 {
1588         if (clicked_crossfadeview) {
1589                 clicked_crossfadeview->right_view.show_region_editor ();
1590         }
1591 }
1592
1593 void
1594 Editor::add_region_context_items (AudioStreamView* sv, boost::shared_ptr<Region> region, Menu_Helpers::MenuList& edit_items)
1595 {
1596         using namespace Menu_Helpers;
1597         Menu     *region_menu = manage (new Menu);
1598         MenuList& items       = region_menu->items();
1599         region_menu->set_name ("ArdourContextMenu");
1600
1601         boost::shared_ptr<AudioRegion> ar;
1602
1603         if (region) {
1604                 ar = boost::dynamic_pointer_cast<AudioRegion> (region);
1605         }
1606
1607         /* when this particular menu pops up, make the relevant region
1608            become selected.
1609         */
1610
1611         region_menu->signal_map_event().connect (bind (mem_fun(*this, &Editor::set_selected_regionview_from_map_event), sv, boost::weak_ptr<Region>(region)));
1612
1613         items.push_back (MenuElem (_("Popup region editor"), mem_fun(*this, &Editor::edit_region)));
1614         items.push_back (MenuElem (_("Raise to top layer"), mem_fun(*this, &Editor::raise_region_to_top)));
1615         items.push_back (MenuElem (_("Lower to bottom layer"), mem_fun  (*this, &Editor::lower_region_to_bottom)));
1616         items.push_back (SeparatorElem());
1617         items.push_back (MenuElem (_("Define sync point"), mem_fun(*this, &Editor::set_region_sync_from_edit_cursor)));
1618         items.push_back (MenuElem (_("Remove sync point"), mem_fun(*this, &Editor::remove_region_sync)));
1619         items.push_back (SeparatorElem());
1620
1621         items.push_back (MenuElem (_("Audition"), mem_fun(*this, &Editor::audition_selected_region)));
1622         items.push_back (MenuElem (_("Export"), mem_fun(*this, &Editor::export_region)));
1623         items.push_back (MenuElem (_("Bounce"), mem_fun(*this, &Editor::bounce_region_selection)));
1624
1625 #ifdef FFT_ANALYSIS
1626         items.push_back (MenuElem (_("Analyze region"), mem_fun(*this, &Editor::analyze_region_selection)));
1627 #endif
1628
1629         items.push_back (SeparatorElem());
1630
1631         items.push_back (CheckMenuElem (_("Lock"), mem_fun(*this, &Editor::toggle_region_lock)));
1632         region_lock_item = static_cast<CheckMenuItem*>(&items.back());
1633         if (region->locked()) {
1634                 region_lock_item->set_active();
1635         }
1636         items.push_back (CheckMenuElem (_("Mute"), mem_fun(*this, &Editor::toggle_region_mute)));
1637         region_mute_item = static_cast<CheckMenuItem*>(&items.back());
1638         if (region->muted()) {
1639                 region_mute_item->set_active();
1640         }
1641         items.push_back (CheckMenuElem (_("Opaque"), mem_fun(*this, &Editor::toggle_region_opaque)));
1642         region_opaque_item = static_cast<CheckMenuItem*>(&items.back());
1643         if (region->opaque()) {
1644                 region_opaque_item->set_active();
1645         }
1646
1647         items.push_back (CheckMenuElem (_("Original position"), mem_fun(*this, &Editor::naturalize)));
1648         if (region->at_natural_position()) {
1649                 items.back().set_sensitive (false);
1650         }
1651
1652         items.push_back (SeparatorElem());
1653
1654         if (ar) {
1655
1656                 RegionView* rv = sv->find_view (ar);
1657                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(rv);
1658
1659                 items.push_back (MenuElem (_("Reset Envelope"), mem_fun(*this, &Editor::reset_region_gain_envelopes)));
1660
1661                 items.push_back (CheckMenuElem (_("Envelope Visible"), mem_fun(*this, &Editor::toggle_gain_envelope_visibility)));
1662                 region_envelope_visible_item = static_cast<CheckMenuItem*> (&items.back());
1663
1664                 if (arv->envelope_visible()) {
1665                         region_envelope_visible_item->set_active (true);
1666                 }
1667
1668                 items.push_back (CheckMenuElem (_("Envelope Active"), mem_fun(*this, &Editor::toggle_gain_envelope_active)));
1669                 region_envelope_active_item = static_cast<CheckMenuItem*> (&items.back());
1670
1671                 if (ar->envelope_active()) {
1672                         region_envelope_active_item->set_active (true);
1673                 }
1674
1675                 items.push_back (SeparatorElem());
1676
1677                 if (ar->scale_amplitude() != 1.0f) {
1678                         items.push_back (MenuElem (_("DeNormalize"), mem_fun(*this, &Editor::denormalize_region)));
1679                 } else {
1680                         items.push_back (MenuElem (_("Normalize"), mem_fun(*this, &Editor::normalize_region)));
1681                 }
1682         }
1683         items.push_back (MenuElem (_("Reverse"), mem_fun(*this, &Editor::reverse_region)));
1684         items.push_back (SeparatorElem());
1685
1686
1687         /* range related stuff */
1688
1689         items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_location_from_audio_region)));
1690         items.push_back (MenuElem (_("Set Range Selection"), mem_fun (*this, &Editor::set_selection_from_audio_region)));
1691         items.push_back (SeparatorElem());
1692
1693         /* Nudge region */
1694
1695         Menu *nudge_menu = manage (new Menu());
1696         MenuList& nudge_items = nudge_menu->items();
1697         nudge_menu->set_name ("ArdourContextMenu");
1698
1699         nudge_items.push_back (MenuElem (_("Nudge fwd"), (bind (mem_fun(*this, &Editor::nudge_forward), false))));
1700         nudge_items.push_back (MenuElem (_("Nudge bwd"), (bind (mem_fun(*this, &Editor::nudge_backward), false))));
1701         nudge_items.push_back (MenuElem (_("Nudge fwd by capture offset"), (mem_fun(*this, &Editor::nudge_forward_capture_offset))));
1702         nudge_items.push_back (MenuElem (_("Nudge bwd by capture offset"), (mem_fun(*this, &Editor::nudge_backward_capture_offset))));
1703
1704         items.push_back (MenuElem (_("Nudge"), *nudge_menu));
1705         items.push_back (SeparatorElem());
1706
1707         Menu *trim_menu = manage (new Menu);
1708         MenuList& trim_items = trim_menu->items();
1709         trim_menu->set_name ("ArdourContextMenu");
1710
1711         trim_items.push_back (MenuElem (_("Start to edit cursor"), mem_fun(*this, &Editor::trim_region_from_edit_cursor)));
1712         trim_items.push_back (MenuElem (_("Edit cursor to end"), mem_fun(*this, &Editor::trim_region_to_edit_cursor)));
1713
1714         items.push_back (MenuElem (_("Trim"), *trim_menu));
1715         items.push_back (SeparatorElem());
1716
1717         items.push_back (MenuElem (_("Split"), (mem_fun(*this, &Editor::split_region))));
1718         region_edit_menu_split_item = &items.back();
1719
1720         items.push_back (MenuElem (_("Make mono regions"), (mem_fun(*this, &Editor::split_multichannel_region))));
1721         region_edit_menu_split_multichannel_item = &items.back();
1722
1723         items.push_back (MenuElem (_("Duplicate"), (bind (mem_fun(*this, &Editor::duplicate_dialog), true))));
1724         items.push_back (MenuElem (_("Fill Track"), (mem_fun(*this, &Editor::region_fill_track))));
1725         items.push_back (SeparatorElem());
1726         items.push_back (MenuElem (_("Remove"), mem_fun(*this, &Editor::remove_clicked_region)));
1727
1728         /* OK, stick the region submenu at the top of the list, and then add
1729            the standard items.
1730         */
1731
1732         /* we have to hack up the region name because "_" has a special
1733            meaning for menu titles.
1734         */
1735
1736         string::size_type pos = 0;
1737         string menu_item_name = region->name();
1738
1739         while ((pos = menu_item_name.find ("_", pos)) != string::npos) {
1740                 menu_item_name.replace (pos, 1, "__");
1741                 pos += 2;
1742         }
1743
1744         edit_items.push_back (MenuElem (menu_item_name, *region_menu));
1745         edit_items.push_back (SeparatorElem());
1746 }
1747
1748 void
1749 Editor::add_selection_context_items (Menu_Helpers::MenuList& edit_items)
1750 {
1751         using namespace Menu_Helpers;
1752         Menu     *selection_menu = manage (new Menu);
1753         MenuList& items       = selection_menu->items();
1754         selection_menu->set_name ("ArdourContextMenu");
1755
1756         items.push_back (MenuElem (_("Play range"), mem_fun(*this, &Editor::play_selection)));
1757         items.push_back (MenuElem (_("Loop range"), mem_fun(*this, &Editor::set_route_loop_selection)));
1758
1759 #ifdef FFT_ANALYSIS
1760         items.push_back (SeparatorElem());
1761         items.push_back (MenuElem (_("Analyze range"), mem_fun(*this, &Editor::analyze_range_selection)));
1762 #endif
1763
1764         items.push_back (SeparatorElem());
1765         items.push_back (MenuElem (_("Separate range to track"), mem_fun(*this, &Editor::separate_region_from_selection)));
1766         items.push_back (MenuElem (_("Separate range to region list"), mem_fun(*this, &Editor::new_region_from_selection)));
1767
1768         items.push_back (SeparatorElem());
1769         items.push_back (MenuElem (_("Select all in range"), mem_fun(*this, &Editor::select_all_selectables_using_time_selection)));
1770         items.push_back (SeparatorElem());
1771         items.push_back (MenuElem (_("Add Range Markers"), mem_fun (*this, &Editor::add_location_from_selection)));
1772         items.push_back (MenuElem (_("Set range to loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
1773         items.push_back (MenuElem (_("Set range to punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
1774         items.push_back (SeparatorElem());
1775         items.push_back (MenuElem (_("Crop region to range"), mem_fun(*this, &Editor::crop_region_to_selection)));
1776         items.push_back (MenuElem (_("Fill range with region"), mem_fun(*this, &Editor::region_fill_selection)));
1777         items.push_back (MenuElem (_("Duplicate range"), bind (mem_fun(*this, &Editor::duplicate_dialog), false)));
1778         items.push_back (MenuElem (_("Create chunk from range"), mem_fun(*this, &Editor::create_named_selection)));
1779         items.push_back (SeparatorElem());
1780         items.push_back (MenuElem (_("Bounce range"), mem_fun(*this, &Editor::bounce_range_selection)));
1781         items.push_back (MenuElem (_("Export range"), mem_fun(*this, &Editor::export_selection)));
1782
1783         edit_items.push_back (MenuElem (_("Range"), *selection_menu));
1784         edit_items.push_back (SeparatorElem());
1785 }
1786
1787 void
1788 Editor::add_dstream_context_items (Menu_Helpers::MenuList& edit_items)
1789 {
1790         using namespace Menu_Helpers;
1791
1792         /* Playback */
1793
1794         Menu *play_menu = manage (new Menu);
1795         MenuList& play_items = play_menu->items();
1796         play_menu->set_name ("ArdourContextMenu");
1797
1798         play_items.push_back (MenuElem (_("Play from edit cursor"), mem_fun(*this, &Editor::play_from_edit_cursor)));
1799         play_items.push_back (MenuElem (_("Play from start"), mem_fun(*this, &Editor::play_from_start)));
1800         play_items.push_back (MenuElem (_("Play region"), mem_fun(*this, &Editor::play_selected_region)));
1801         play_items.push_back (SeparatorElem());
1802         play_items.push_back (MenuElem (_("Loop Region"), mem_fun(*this, &Editor::loop_selected_region)));
1803
1804         edit_items.push_back (MenuElem (_("Play"), *play_menu));
1805
1806         /* Selection */
1807
1808         Menu *select_menu = manage (new Menu);
1809         MenuList& select_items = select_menu->items();
1810         select_menu->set_name ("ArdourContextMenu");
1811
1812         select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
1813         select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
1814         select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
1815         select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
1816         select_items.push_back (SeparatorElem());
1817         select_items.push_back (MenuElem (_("Set range to loop range"), mem_fun(*this, &Editor::set_selection_from_loop)));
1818         select_items.push_back (MenuElem (_("Set range to punch range"), mem_fun(*this, &Editor::set_selection_from_punch)));
1819         select_items.push_back (SeparatorElem());
1820         select_items.push_back (MenuElem (_("Select all after edit cursor"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), edit_cursor, true)));
1821         select_items.push_back (MenuElem (_("Select all before edit cursor"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), edit_cursor, false)));
1822         select_items.push_back (MenuElem (_("Select all after playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
1823         select_items.push_back (MenuElem (_("Select all before playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
1824         select_items.push_back (MenuElem (_("Select all between cursors"), bind (mem_fun(*this, &Editor::select_all_selectables_between_cursors), playhead_cursor, edit_cursor)));
1825         select_items.push_back (SeparatorElem());
1826
1827         edit_items.push_back (MenuElem (_("Select"), *select_menu));
1828
1829         /* Cut-n-Paste */
1830
1831         Menu *cutnpaste_menu = manage (new Menu);
1832         MenuList& cutnpaste_items = cutnpaste_menu->items();
1833         cutnpaste_menu->set_name ("ArdourContextMenu");
1834
1835         cutnpaste_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
1836         cutnpaste_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
1837         cutnpaste_items.push_back (MenuElem (_("Paste at edit cursor"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
1838         cutnpaste_items.push_back (MenuElem (_("Paste at mouse"), mem_fun(*this, &Editor::mouse_paste)));
1839
1840         cutnpaste_items.push_back (SeparatorElem());
1841
1842         cutnpaste_items.push_back (MenuElem (_("Align"), bind (mem_fun(*this, &Editor::align), ARDOUR::SyncPoint)));
1843         cutnpaste_items.push_back (MenuElem (_("Align Relative"), bind (mem_fun(*this, &Editor::align_relative), ARDOUR::SyncPoint)));
1844
1845         cutnpaste_items.push_back (SeparatorElem());
1846
1847         cutnpaste_items.push_back (MenuElem (_("Insert chunk"), bind (mem_fun(*this, &Editor::paste_named_selection), 1.0f)));
1848
1849         edit_items.push_back (MenuElem (_("Edit"), *cutnpaste_menu));
1850
1851         /* Adding new material */
1852
1853         edit_items.push_back (SeparatorElem());
1854         edit_items.push_back (MenuElem (_("Insert Selected Region"), bind (mem_fun(*this, &Editor::insert_region_list_selection), 1.0f)));
1855         edit_items.push_back (MenuElem (_("Insert Existing Audio"), bind (mem_fun(*this, &Editor::add_external_audio_action), ImportToTrack)));
1856
1857         /* Nudge track */
1858
1859         Menu *nudge_menu = manage (new Menu());
1860         MenuList& nudge_items = nudge_menu->items();
1861         nudge_menu->set_name ("ArdourContextMenu");
1862
1863         edit_items.push_back (SeparatorElem());
1864         nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, true))));
1865         nudge_items.push_back (MenuElem (_("Nudge track after edit cursor fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, true))));
1866         nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, false))));
1867         nudge_items.push_back (MenuElem (_("Nudge track after edit cursor bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, false))));
1868
1869         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
1870 }
1871
1872 void
1873 Editor::add_bus_context_items (Menu_Helpers::MenuList& edit_items)
1874 {
1875         using namespace Menu_Helpers;
1876
1877         /* Playback */
1878
1879         Menu *play_menu = manage (new Menu);
1880         MenuList& play_items = play_menu->items();
1881         play_menu->set_name ("ArdourContextMenu");
1882
1883         play_items.push_back (MenuElem (_("Play from edit cursor"), mem_fun(*this, &Editor::play_from_edit_cursor)));
1884         play_items.push_back (MenuElem (_("Play from start"), mem_fun(*this, &Editor::play_from_start)));
1885         edit_items.push_back (MenuElem (_("Play"), *play_menu));
1886
1887         /* Selection */
1888
1889         Menu *select_menu = manage (new Menu);
1890         MenuList& select_items = select_menu->items();
1891         select_menu->set_name ("ArdourContextMenu");
1892
1893         select_items.push_back (MenuElem (_("Select All in track"), bind (mem_fun(*this, &Editor::select_all_in_track), Selection::Set)));
1894         select_items.push_back (MenuElem (_("Select All"), bind (mem_fun(*this, &Editor::select_all), Selection::Set)));
1895         select_items.push_back (MenuElem (_("Invert selection in track"), mem_fun(*this, &Editor::invert_selection_in_track)));
1896         select_items.push_back (MenuElem (_("Invert selection"), mem_fun(*this, &Editor::invert_selection)));
1897         select_items.push_back (SeparatorElem());
1898         select_items.push_back (MenuElem (_("Select all after edit cursor"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), edit_cursor, true)));
1899         select_items.push_back (MenuElem (_("Select all before edit cursor"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), edit_cursor, false)));
1900         select_items.push_back (MenuElem (_("Select all after playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, true)));
1901         select_items.push_back (MenuElem (_("Select all before playhead"), bind (mem_fun(*this, &Editor::select_all_selectables_using_cursor), playhead_cursor, false)));
1902
1903         edit_items.push_back (MenuElem (_("Select"), *select_menu));
1904
1905         /* Cut-n-Paste */
1906
1907         Menu *cutnpaste_menu = manage (new Menu);
1908         MenuList& cutnpaste_items = cutnpaste_menu->items();
1909         cutnpaste_menu->set_name ("ArdourContextMenu");
1910
1911         cutnpaste_items.push_back (MenuElem (_("Cut"), mem_fun(*this, &Editor::cut)));
1912         cutnpaste_items.push_back (MenuElem (_("Copy"), mem_fun(*this, &Editor::copy)));
1913         cutnpaste_items.push_back (MenuElem (_("Paste"), bind (mem_fun(*this, &Editor::paste), 1.0f)));
1914
1915         Menu *nudge_menu = manage (new Menu());
1916         MenuList& nudge_items = nudge_menu->items();
1917         nudge_menu->set_name ("ArdourContextMenu");
1918
1919         edit_items.push_back (SeparatorElem());
1920         nudge_items.push_back (MenuElem (_("Nudge entire track fwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, true))));
1921         nudge_items.push_back (MenuElem (_("Nudge track after edit cursor fwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, true))));
1922         nudge_items.push_back (MenuElem (_("Nudge entire track bwd"), (bind (mem_fun(*this, &Editor::nudge_track), false, false))));
1923         nudge_items.push_back (MenuElem (_("Nudge track after edit cursor bwd"), (bind (mem_fun(*this, &Editor::nudge_track), true, false))));
1924
1925         edit_items.push_back (MenuElem (_("Nudge"), *nudge_menu));
1926 }
1927
1928 /* CURSOR SETTING AND MARKS AND STUFF */
1929
1930 void
1931 Editor::set_snap_to (SnapType st)
1932 {
1933         snap_type = st;
1934         string str = snap_type_strings[(int) st];
1935
1936         if (str != snap_type_selector.get_active_text()) {
1937                 snap_type_selector.set_active_text (str);
1938         }
1939
1940         instant_save ();
1941
1942         switch (snap_type) {
1943         case SnapToAThirtysecondBeat:
1944         case SnapToASixteenthBeat:
1945         case SnapToAEighthBeat:
1946         case SnapToAQuarterBeat:
1947         case SnapToAThirdBeat:
1948                 update_tempo_based_rulers ();
1949         default:
1950                 /* relax */
1951                 break;
1952     }
1953 }
1954
1955 void
1956 Editor::set_snap_mode (SnapMode mode)
1957 {
1958         snap_mode = mode;
1959         string str = snap_mode_strings[(int)mode];
1960
1961         if (str != snap_mode_selector.get_active_text ()) {
1962                 snap_mode_selector.set_active_text (str);
1963         }
1964
1965         instant_save ();
1966 }
1967
1968 int
1969 Editor::set_state (const XMLNode& node)
1970 {
1971         const XMLProperty* prop;
1972         XMLNode* geometry;
1973         int x, y, xoff, yoff;
1974         Gdk::Geometry g;
1975
1976         if ((prop = node.property ("id")) != 0) {
1977                 _id = prop->value ();
1978         }
1979
1980         if ((geometry = find_named_node (node, "geometry")) == 0) {
1981
1982                 g.base_width = default_width;
1983                 g.base_height = default_height;
1984                 x = 1;
1985                 y = 1;
1986                 xoff = 0;
1987                 yoff = 21;
1988
1989         } else {
1990
1991                 g.base_width = atoi(geometry->property("x_size")->value());
1992                 g.base_height = atoi(geometry->property("y_size")->value());
1993                 x = atoi(geometry->property("x_pos")->value());
1994                 y = atoi(geometry->property("y_pos")->value());
1995                 xoff = atoi(geometry->property("x_off")->value());
1996                 yoff = atoi(geometry->property("y_off")->value());
1997         }
1998
1999         set_default_size (g.base_width, g.base_height);
2000         move (x, y);
2001
2002         if (session && (prop = node.property ("playhead"))) {
2003                 nframes_t pos = atol (prop->value().c_str());
2004                 playhead_cursor->set_position (pos);
2005         } else {
2006                 playhead_cursor->set_position (0);
2007
2008                 /* reset_x_origin() doesn't work right here, since the old
2009                    position may be zero already, and it does nothing in such
2010                    circumstances.
2011                 */
2012
2013                 leftmost_frame = 0;
2014                 horizontal_adjustment.set_value (0);
2015         }
2016
2017         if (session && (prop = node.property ("edit-cursor"))) {
2018                 nframes_t pos = atol (prop->value().c_str());
2019                 edit_cursor->set_position (pos);
2020         } else {
2021                 edit_cursor->set_position (0);
2022         }
2023
2024         if ((prop = node.property ("zoom-focus"))) {
2025                 set_zoom_focus ((ZoomFocus) atoi (prop->value()));
2026         }
2027
2028         if ((prop = node.property ("zoom"))) {
2029                 reset_zoom (PBD::atof (prop->value()));
2030         }
2031
2032         if ((prop = node.property ("snap-to"))) {
2033                 set_snap_to ((SnapType) atoi (prop->value()));
2034         }
2035
2036         if ((prop = node.property ("snap-mode"))) {
2037                 set_snap_mode ((SnapMode) atoi (prop->value()));
2038         }
2039
2040         if ((prop = node.property ("mouse-mode"))) {
2041                 MouseMode m = str2mousemode(prop->value());
2042                 mouse_mode = MouseMode ((int) m + 1); /* lie, force mode switch */
2043                 set_mouse_mode (m, true);
2044         } else {
2045                 mouse_mode = MouseGain; /* lie, to force the mode switch */
2046                 set_mouse_mode (MouseObject, true);
2047         }
2048
2049         if ((prop = node.property ("show-waveforms"))) {
2050                 bool yn = (prop->value() == "yes");
2051                 _show_waveforms = !yn;
2052                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformVisibility"));
2053                 if (act) {
2054                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2055                         /* do it twice to force the change */
2056                         tact->set_active (!yn);
2057                         tact->set_active (yn);
2058                 }
2059         }
2060
2061         if ((prop = node.property ("show-waveforms-recording"))) {
2062                 bool yn = (prop->value() == "yes");
2063                 _show_waveforms_recording = !yn;
2064                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleWaveformsWhileRecording"));
2065                 if (act) {
2066                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2067                         /* do it twice to force the change */
2068                         tact->set_active (!yn);
2069                         tact->set_active (yn);
2070                 }
2071         }
2072
2073         if ((prop = node.property ("show-measures"))) {
2074                 bool yn = (prop->value() == "yes");
2075                 _show_measures = !yn;
2076                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("ToggleMeasureVisibility"));
2077                 if (act) {
2078                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2079                         /* do it twice to force the change */
2080                         tact->set_active (!yn);
2081                         tact->set_active (yn);
2082                 }
2083         }
2084
2085         if ((prop = node.property ("follow-playhead"))) {
2086                 bool yn = (prop->value() == "yes");
2087                 RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
2088                 if (act) {
2089                         RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
2090                         /* do it twice to force the change */
2091                         tact->set_active (!yn);
2092                         tact->set_active (yn);
2093                 }
2094         }
2095
2096
2097         if ((prop = node.property ("region-list-sort-type"))) {
2098                 region_list_sort_type = (Editing::RegionListSortType) -1; // force change
2099                 reset_region_list_sort_type(str2regionlistsorttype(prop->value()));
2100         }
2101
2102         if ((prop = node.property ("xfades-visible"))) {
2103                 bool yn = (prop->value() == "yes");
2104                 _xfade_visibility = !yn;
2105                 // set_xfade_visibility (yn);
2106         }
2107
2108         if ((prop = node.property ("show-editor-mixer"))) {
2109
2110                 Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2111                 if (act) {
2112
2113                         Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2114                         bool yn = (prop->value() == X_("yes"));
2115
2116                         /* do it twice to force the change */
2117
2118                         tact->set_active (!yn);
2119                         tact->set_active (yn);
2120                 }
2121         }
2122
2123
2124         return 0;
2125 }
2126
2127 XMLNode&
2128 Editor::get_state ()
2129 {
2130         XMLNode* node = new XMLNode ("Editor");
2131         char buf[32];
2132
2133         _id.print (buf, sizeof (buf));
2134         node->add_property ("id", buf);
2135
2136         if (is_realized()) {
2137                 Glib::RefPtr<Gdk::Window> win = get_window();
2138
2139                 int x, y, xoff, yoff, width, height;
2140                 win->get_root_origin(x, y);
2141                 win->get_position(xoff, yoff);
2142                 win->get_size(width, height);
2143
2144                 XMLNode* geometry = new XMLNode ("geometry");
2145
2146                 snprintf(buf, sizeof(buf), "%d", width);
2147                 geometry->add_property("x_size", string(buf));
2148                 snprintf(buf, sizeof(buf), "%d", height);
2149                 geometry->add_property("y_size", string(buf));
2150                 snprintf(buf, sizeof(buf), "%d", x);
2151                 geometry->add_property("x_pos", string(buf));
2152                 snprintf(buf, sizeof(buf), "%d", y);
2153                 geometry->add_property("y_pos", string(buf));
2154                 snprintf(buf, sizeof(buf), "%d", xoff);
2155                 geometry->add_property("x_off", string(buf));
2156                 snprintf(buf, sizeof(buf), "%d", yoff);
2157                 geometry->add_property("y_off", string(buf));
2158                 snprintf(buf,sizeof(buf), "%d",gtk_paned_get_position (static_cast<Paned*>(&edit_pane)->gobj()));
2159                 geometry->add_property("edit_pane_pos", string(buf));
2160
2161                 node->add_child_nocopy (*geometry);
2162         }
2163
2164         snprintf (buf, sizeof(buf), "%d", (int) zoom_focus);
2165         node->add_property ("zoom-focus", buf);
2166         snprintf (buf, sizeof(buf), "%f", frames_per_unit);
2167         node->add_property ("zoom", buf);
2168         snprintf (buf, sizeof(buf), "%d", (int) snap_type);
2169         node->add_property ("snap-to", buf);
2170         snprintf (buf, sizeof(buf), "%d", (int) snap_mode);
2171         node->add_property ("snap-mode", buf);
2172
2173         snprintf (buf, sizeof (buf), "%" PRIu32, playhead_cursor->current_frame);
2174         node->add_property ("playhead", buf);
2175         snprintf (buf, sizeof (buf), "%" PRIu32, edit_cursor->current_frame);
2176         node->add_property ("edit-cursor", buf);
2177
2178         node->add_property ("show-waveforms", _show_waveforms ? "yes" : "no");
2179         node->add_property ("show-waveforms-recording", _show_waveforms_recording ? "yes" : "no");
2180         node->add_property ("show-measures", _show_measures ? "yes" : "no");
2181         node->add_property ("follow-playhead", _follow_playhead ? "yes" : "no");
2182         node->add_property ("xfades-visible", _xfade_visibility ? "yes" : "no");
2183         node->add_property ("region-list-sort-type", enum2str(region_list_sort_type));
2184         node->add_property ("mouse-mode", enum2str(mouse_mode));
2185
2186         Glib::RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("show-editor-mixer"));
2187         if (act) {
2188                 Glib::RefPtr<ToggleAction> tact = Glib::RefPtr<ToggleAction>::cast_dynamic(act);
2189                 node->add_property (X_("show-editor-mixer"), tact->get_active() ? "yes" : "no");
2190         }
2191
2192         return *node;
2193 }
2194
2195
2196
2197 TimeAxisView *
2198 Editor::trackview_by_y_position (double y)
2199 {
2200         for (TrackViewList::iterator iter = track_views.begin(); iter != track_views.end(); ++iter) {
2201
2202                 TimeAxisView *tv;
2203
2204                 if ((tv = (*iter)->covers_y_position (y)) != 0) {
2205                         return tv;
2206                 }
2207         }
2208
2209         return 0;
2210 }
2211
2212 void
2213 Editor::snap_to (nframes_t& start, int32_t direction, bool for_mark)
2214 {
2215         Location* before = 0;
2216         Location* after = 0;
2217
2218         if (!session) {
2219                 return;
2220         }
2221
2222         const nframes_t one_second = session->frame_rate();
2223         const nframes_t one_minute = session->frame_rate() * 60;
2224         const nframes_t one_smpte_second = (nframes_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame());
2225         nframes_t one_smpte_minute = (nframes_t)(rint(session->smpte_frames_per_second()) * session->frames_per_smpte_frame() * 60);
2226         nframes_t presnap = start;
2227
2228         switch (snap_type) {
2229         case SnapToFrame:
2230                 break;
2231
2232         case SnapToCDFrame:
2233                 if (direction) {
2234                         start = (nframes_t) ceil ((double) start / (one_second / 75)) * (one_second / 75);
2235                 } else {
2236                         start = (nframes_t) floor ((double) start / (one_second / 75)) * (one_second / 75);
2237                 }
2238                 break;
2239
2240         case SnapToSMPTEFrame:
2241                 if (fmod((double)start, (double)session->frames_per_smpte_frame()) > (session->frames_per_smpte_frame() / 2)) {
2242                         start = (nframes_t) (ceil ((double) start / session->frames_per_smpte_frame()) * session->frames_per_smpte_frame());
2243                 } else {
2244                         start = (nframes_t) (floor ((double) start / session->frames_per_smpte_frame()) *  session->frames_per_smpte_frame());
2245                 }
2246                 break;
2247
2248         case SnapToSMPTESeconds:
2249                 if (session->smpte_offset_negative())
2250                 {
2251                         start += session->smpte_offset ();
2252                 } else {
2253                         start -= session->smpte_offset ();
2254                 }
2255                 if (start % one_smpte_second > one_smpte_second / 2) {
2256                         start = (nframes_t) ceil ((double) start / one_smpte_second) * one_smpte_second;
2257                 } else {
2258                         start = (nframes_t) floor ((double) start / one_smpte_second) * one_smpte_second;
2259                 }
2260
2261                 if (session->smpte_offset_negative())
2262                 {
2263                         start -= session->smpte_offset ();
2264                 } else {
2265                         start += session->smpte_offset ();
2266                 }
2267                 break;
2268
2269         case SnapToSMPTEMinutes:
2270                 if (session->smpte_offset_negative())
2271                 {
2272                         start += session->smpte_offset ();
2273                 } else {
2274                         start -= session->smpte_offset ();
2275                 }
2276                 if (start % one_smpte_minute > one_smpte_minute / 2) {
2277                         start = (nframes_t) ceil ((double) start / one_smpte_minute) * one_smpte_minute;
2278                 } else {
2279                         start = (nframes_t) floor ((double) start / one_smpte_minute) * one_smpte_minute;
2280                 }
2281                 if (session->smpte_offset_negative())
2282                 {
2283                         start -= session->smpte_offset ();
2284                 } else {
2285                         start += session->smpte_offset ();
2286                 }
2287                 break;
2288
2289         case SnapToSeconds:
2290                 if (start % one_second > one_second / 2) {
2291                         start = (nframes_t) ceil ((double) start / one_second) * one_second;
2292                 } else {
2293                         start = (nframes_t) floor ((double) start / one_second) * one_second;
2294                 }
2295                 break;
2296
2297         case SnapToMinutes:
2298                 if (start % one_minute > one_minute / 2) {
2299                         start = (nframes_t) ceil ((double) start / one_minute) * one_minute;
2300                 } else {
2301                         start = (nframes_t) floor ((double) start / one_minute) * one_minute;
2302                 }
2303                 break;
2304
2305         case SnapToBar:
2306                 start = session->tempo_map().round_to_bar (start, direction);
2307                 break;
2308
2309         case SnapToBeat:
2310                 start = session->tempo_map().round_to_beat (start, direction);
2311                 break;
2312
2313         case SnapToAThirtysecondBeat:
2314                 start = session->tempo_map().round_to_beat_subdivision (start, 32);
2315                 break;
2316
2317         case SnapToASixteenthBeat:
2318                 start = session->tempo_map().round_to_beat_subdivision (start, 16);
2319                 break;
2320
2321         case SnapToAEighthBeat:
2322                 start = session->tempo_map().round_to_beat_subdivision (start, 8);
2323                 break;
2324
2325         case SnapToAQuarterBeat:
2326                 start = session->tempo_map().round_to_beat_subdivision (start, 4);
2327                 break;
2328
2329         case SnapToAThirdBeat:
2330                 start = session->tempo_map().round_to_beat_subdivision (start, 3);
2331                 break;
2332
2333         case SnapToEditCursor:
2334                 start = edit_cursor->current_frame;
2335                 break;
2336
2337         case SnapToMark:
2338                 if (for_mark) {
2339                         return;
2340                 }
2341
2342                 before = session->locations()->first_location_before (start);
2343                 after = session->locations()->first_location_after (start);
2344
2345                 if (direction < 0) {
2346                         if (before) {
2347                                 start = before->start();
2348                         } else {
2349                                 start = 0;
2350                         }
2351                 } else if (direction > 0) {
2352                         if (after) {
2353                                 start = after->start();
2354                         } else {
2355                                 start = session->current_end_frame();
2356                         }
2357                 } else {
2358                         if (before) {
2359                                 if (after) {
2360                                         /* find nearest of the two */
2361                                         if ((start - before->start()) < (after->start() - start)) {
2362                                                 start = before->start();
2363                                         } else {
2364                                                 start = after->start();
2365                                         }
2366                                 } else {
2367                                         start = before->start();
2368                                 }
2369                         } else if (after) {
2370                                 start = after->start();
2371                         } else {
2372                                 /* relax */
2373                         }
2374                 }
2375                 break;
2376
2377         case SnapToRegionStart:
2378         case SnapToRegionEnd:
2379         case SnapToRegionSync:
2380         case SnapToRegionBoundary:
2381                 if (!region_boundary_cache.empty()) {
2382                         vector<nframes_t>::iterator i;
2383
2384                         if (direction > 0) {
2385                                 i = std::upper_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2386                         } else {
2387                                 i = std::lower_bound (region_boundary_cache.begin(), region_boundary_cache.end(), start);
2388                         }
2389
2390                         if (i != region_boundary_cache.end()) {
2391                                 start = *i;
2392                         } else {
2393                                 start = region_boundary_cache.back();
2394                         }
2395                 }
2396                 break;
2397         }
2398
2399         switch (snap_mode) {
2400         case SnapNormal:
2401                 return;
2402
2403         case SnapMagnetic:
2404
2405                 if (presnap > start) {
2406                         if (presnap > (start + unit_to_frame(snap_threshold))) {
2407                                 start = presnap;
2408                         }
2409
2410                 } else if (presnap < start) {
2411                         if (presnap < (start - unit_to_frame(snap_threshold))) {
2412                                 start = presnap;
2413                         }
2414                 }
2415
2416         default:
2417                 return;
2418
2419         }
2420 }
2421
2422 void
2423 Editor::setup_toolbar ()
2424 {
2425         string pixmap_path;
2426
2427         const guint32 FUDGE = 18; // Combo's are stupid - they steal space from the entry for the button
2428
2429
2430         /* Mode Buttons (tool selection) */
2431
2432         vector<ToggleButton *> mouse_mode_buttons;
2433
2434         mouse_move_button.add (*(manage (new Image (::get_icon("tool_object")))));
2435         mouse_move_button.set_relief(Gtk::RELIEF_NONE);
2436         mouse_mode_buttons.push_back (&mouse_move_button);
2437         mouse_select_button.add (*(manage (new Image (get_xpm("tool_range.xpm")))));
2438         mouse_select_button.set_relief(Gtk::RELIEF_NONE);
2439         mouse_mode_buttons.push_back (&mouse_select_button);
2440         mouse_gain_button.add (*(manage (new Image (::get_icon("tool_gain")))));
2441         mouse_gain_button.set_relief(Gtk::RELIEF_NONE);
2442         mouse_mode_buttons.push_back (&mouse_gain_button);
2443         mouse_zoom_button.add (*(manage (new Image (::get_icon("tool_zoom")))));
2444         mouse_zoom_button.set_relief(Gtk::RELIEF_NONE);
2445         mouse_mode_buttons.push_back (&mouse_zoom_button);
2446         mouse_timefx_button.add (*(manage (new Image (::get_icon("tool_stretch")))));
2447         mouse_timefx_button.set_relief(Gtk::RELIEF_NONE);
2448         mouse_mode_buttons.push_back (&mouse_timefx_button);
2449         mouse_audition_button.add (*(manage (new Image (::get_icon("tool_audition")))));
2450         mouse_audition_button.set_relief(Gtk::RELIEF_NONE);
2451         mouse_mode_buttons.push_back (&mouse_audition_button);
2452
2453         mouse_mode_button_set = new GroupedButtons (mouse_mode_buttons);
2454
2455         HBox* mode_box = manage(new HBox);
2456         mode_box->set_border_width (2);
2457         mode_box->set_spacing(4);
2458         mouse_mode_button_box.set_spacing(1);
2459         mouse_mode_button_box.pack_start(mouse_move_button, true, true);
2460         mouse_mode_button_box.pack_start(mouse_select_button, true, true);
2461         mouse_mode_button_box.pack_start(mouse_zoom_button, true, true);
2462         mouse_mode_button_box.pack_start(mouse_gain_button, true, true);
2463         mouse_mode_button_box.pack_start(mouse_timefx_button, true, true);
2464         mouse_mode_button_box.pack_start(mouse_audition_button, true, true);
2465         mouse_mode_button_box.set_homogeneous(true);
2466
2467         vector<string> edit_mode_strings;
2468         edit_mode_strings.push_back (edit_mode_to_string (Splice));
2469         edit_mode_strings.push_back (edit_mode_to_string (Slide));
2470
2471         edit_mode_selector.set_name ("EditModeSelector");
2472         Gtkmm2ext::set_size_request_to_display_given_text (edit_mode_selector, longest (edit_mode_strings).c_str(), 2+FUDGE, 10);
2473         set_popdown_strings (edit_mode_selector, edit_mode_strings);
2474         edit_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::edit_mode_selection_done));
2475
2476         mode_box->pack_start(edit_mode_selector);
2477         mode_box->pack_start(mouse_mode_button_box);
2478
2479         mouse_mode_tearoff = manage (new TearOff (*mode_box));
2480         mouse_mode_tearoff->set_name ("MouseModeBase");
2481
2482         mouse_mode_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2483                                                   &mouse_mode_tearoff->tearoff_window()));
2484         mouse_mode_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2485                                                   &mouse_mode_tearoff->tearoff_window(), 1));
2486         mouse_mode_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2487                                                   &mouse_mode_tearoff->tearoff_window()));
2488         mouse_mode_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2489                                                    &mouse_mode_tearoff->tearoff_window(), 1));
2490
2491         mouse_move_button.set_name ("MouseModeButton");
2492         mouse_select_button.set_name ("MouseModeButton");
2493         mouse_gain_button.set_name ("MouseModeButton");
2494         mouse_zoom_button.set_name ("MouseModeButton");
2495         mouse_timefx_button.set_name ("MouseModeButton");
2496         mouse_audition_button.set_name ("MouseModeButton");
2497
2498         ARDOUR_UI::instance()->tooltips().set_tip (mouse_move_button, _("Select/Move Objects"));
2499         ARDOUR_UI::instance()->tooltips().set_tip (mouse_select_button, _("Select/Move Ranges"));
2500         ARDOUR_UI::instance()->tooltips().set_tip (mouse_gain_button, _("Draw Gain Automation"));
2501         ARDOUR_UI::instance()->tooltips().set_tip (mouse_zoom_button, _("Select Zoom Range"));
2502         ARDOUR_UI::instance()->tooltips().set_tip (mouse_timefx_button, _("Stretch/Shrink Regions"));
2503         ARDOUR_UI::instance()->tooltips().set_tip (mouse_audition_button, _("Listen to Specific Regions"));
2504
2505         mouse_move_button.unset_flags (CAN_FOCUS);
2506         mouse_select_button.unset_flags (CAN_FOCUS);
2507         mouse_gain_button.unset_flags (CAN_FOCUS);
2508         mouse_zoom_button.unset_flags (CAN_FOCUS);
2509         mouse_timefx_button.unset_flags (CAN_FOCUS);
2510         mouse_audition_button.unset_flags (CAN_FOCUS);
2511
2512         mouse_select_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseRange));
2513         mouse_select_button.signal_button_release_event().connect (mem_fun(*this, &Editor::mouse_select_button_release));
2514
2515         mouse_move_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseObject));
2516         mouse_gain_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseGain));
2517         mouse_zoom_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseZoom));
2518         mouse_timefx_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseTimeFX));
2519         mouse_audition_button.signal_toggled().connect (bind (mem_fun(*this, &Editor::mouse_mode_toggled), Editing::MouseAudition));
2520
2521         // mouse_move_button.set_active (true);
2522
2523
2524         /* Zoom */
2525
2526         zoom_box.set_spacing (1);
2527         zoom_box.set_border_width (2);
2528
2529         zoom_in_button.set_name ("EditorTimeButton");
2530         zoom_in_button.set_size_request(-1,16);
2531         zoom_in_button.add (*(manage (new Image (::get_icon("zoom_in")))));
2532         zoom_in_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), false));
2533         ARDOUR_UI::instance()->tooltips().set_tip (zoom_in_button, _("Zoom In"));
2534
2535         zoom_out_button.set_name ("EditorTimeButton");
2536         zoom_out_button.set_size_request(-1,16);
2537         zoom_out_button.add (*(manage (new Image (::get_icon("zoom_out")))));
2538         zoom_out_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::temporal_zoom_step), true));
2539         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_button, _("Zoom Out"));
2540
2541         zoom_out_full_button.set_name ("EditorTimeButton");
2542         zoom_out_full_button.set_size_request(-1,16);
2543         zoom_out_full_button.add (*(manage (new Image (::get_icon("zoom_full")))));
2544         zoom_out_full_button.signal_clicked().connect (mem_fun(*this, &Editor::temporal_zoom_session));
2545         ARDOUR_UI::instance()->tooltips().set_tip (zoom_out_full_button, _("Zoom to Session"));
2546
2547         zoom_focus_selector.set_name ("ZoomFocusSelector");
2548         Gtkmm2ext::set_size_request_to_display_given_text (zoom_focus_selector, "Edit Cursor", FUDGE, 0);
2549         set_popdown_strings (zoom_focus_selector, zoom_focus_strings);
2550         zoom_focus_selector.signal_changed().connect (mem_fun(*this, &Editor::zoom_focus_selection_done));
2551         ARDOUR_UI::instance()->tooltips().set_tip (zoom_focus_selector, _("Zoom focus"));
2552
2553         zoom_box.pack_start (zoom_focus_selector, true, true);
2554         zoom_box.pack_start (zoom_out_button, false, false);
2555         zoom_box.pack_start (zoom_in_button, false, false);
2556         zoom_box.pack_start (zoom_out_full_button, false, false);
2557
2558         /* Edit Cursor / Snap */
2559
2560         snap_box.set_spacing (1);
2561         snap_box.set_border_width (2);
2562
2563         snap_type_selector.set_name ("SnapTypeSelector");
2564         Gtkmm2ext::set_size_request_to_display_given_text (snap_type_selector, "SMPTE Seconds", 2+FUDGE, 10);
2565         set_popdown_strings (snap_type_selector, snap_type_strings);
2566         snap_type_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_type_selection_done));
2567         ARDOUR_UI::instance()->tooltips().set_tip (snap_type_selector, _("Unit to snap cursors and ranges to"));
2568
2569         snap_mode_selector.set_name ("SnapModeSelector");
2570         Gtkmm2ext::set_size_request_to_display_given_text (snap_mode_selector, "Magnetic Snap", 2+FUDGE, 10);
2571         set_popdown_strings (snap_mode_selector, snap_mode_strings);
2572         snap_mode_selector.signal_changed().connect (mem_fun(*this, &Editor::snap_mode_selection_done));
2573
2574         snap_box.pack_start (edit_cursor_clock, false, false);
2575         snap_box.pack_start (snap_mode_selector, false, false);
2576         snap_box.pack_start (snap_type_selector, false, false);
2577
2578
2579         /* Nudge */
2580
2581         HBox *nudge_box = manage (new HBox);
2582         nudge_box->set_spacing(1);
2583         nudge_box->set_border_width (2);
2584
2585         nudge_forward_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::nudge_forward), false));
2586         nudge_backward_button.signal_clicked().connect (bind (mem_fun(*this, &Editor::nudge_backward), false));
2587
2588         nudge_box->pack_start (nudge_backward_button, false, false);
2589         nudge_box->pack_start (nudge_forward_button, false, false);
2590         nudge_box->pack_start (nudge_clock, false, false);
2591
2592
2593         /* Pack everything in... */
2594
2595         HBox* hbox = new HBox;
2596         hbox->set_spacing(10);
2597
2598         tools_tearoff = new TearOff (*hbox);
2599         tools_tearoff->set_name ("MouseModeBase");
2600
2601         tools_tearoff->Detach.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2602                                              &tools_tearoff->tearoff_window()));
2603         tools_tearoff->Attach.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2604                                              &tools_tearoff->tearoff_window(), 0));
2605         tools_tearoff->Hidden.connect (bind (mem_fun(*this, &Editor::detach_tearoff), static_cast<Box*>(&toolbar_hbox),
2606                                              &tools_tearoff->tearoff_window()));
2607         tools_tearoff->Visible.connect (bind (mem_fun(*this, &Editor::reattach_tearoff), static_cast<Box*> (&toolbar_hbox),
2608                                               &tools_tearoff->tearoff_window(), 0));
2609
2610         toolbar_hbox.set_spacing (10);
2611         toolbar_hbox.set_border_width (1);
2612
2613         toolbar_hbox.pack_start (*mouse_mode_tearoff, false, false);
2614         toolbar_hbox.pack_start (*tools_tearoff, false, false);
2615
2616
2617         hbox->pack_start (snap_box, false, false);
2618         // hbox->pack_start (zoom_box, false, false);
2619         hbox->pack_start (*nudge_box, false, false);
2620
2621         hbox->show_all ();
2622
2623         toolbar_base.set_name ("ToolBarBase");
2624         toolbar_base.add (toolbar_hbox);
2625
2626         toolbar_frame.set_shadow_type (SHADOW_OUT);
2627         toolbar_frame.set_name ("BaseFrame");
2628         toolbar_frame.add (toolbar_base);
2629 }
2630
2631 int
2632 Editor::convert_drop_to_paths (vector<ustring>& paths,
2633                                const RefPtr<Gdk::DragContext>& context,
2634                                gint                x,
2635                                gint                y,
2636                                const SelectionData& data,
2637                                guint               info,
2638                                guint               time)
2639
2640 {
2641         if (session == 0) {
2642                 return -1;
2643         }
2644
2645         vector<ustring> uris = data.get_uris();
2646
2647         if (uris.empty()) {
2648
2649                 /* This is seriously fucked up. Nautilus doesn't say that its URI lists
2650                    are actually URI lists. So do it by hand.
2651                 */
2652
2653                 if (data.get_target() != "text/plain") {
2654                         return -1;
2655                 }
2656
2657                 /* Parse the "uri-list" format that Nautilus provides,
2658                    where each pathname is delimited by \r\n
2659                 */
2660
2661                 const char* p = data.get_text().c_str();
2662                 const char* q;
2663
2664                 while (p)
2665                 {
2666                         if (*p != '#')
2667                         {
2668                                 while (g_ascii_isspace (*p))
2669                                         p++;
2670
2671                                 q = p;
2672                                 while (*q && (*q != '\n') && (*q != '\r'))
2673                                         q++;
2674
2675                                 if (q > p)
2676                                 {
2677                                         q--;
2678                                         while (q > p && g_ascii_isspace (*q))
2679                                                 q--;
2680
2681                                         if (q > p)
2682                                         {
2683                                                 uris.push_back (ustring (p, q - p + 1));
2684                                         }
2685                                 }
2686                         }
2687                         p = strchr (p, '\n');
2688                         if (p)
2689                                 p++;
2690                 }
2691
2692                 if (uris.empty()) {
2693                         return -1;
2694                 }
2695         }
2696
2697         for (vector<ustring>::iterator i = uris.begin(); i != uris.end(); ++i) {
2698                 if ((*i).substr (0,7) == "file://") {
2699                         string p = *i;
2700                         PBD::url_decode (p);
2701                         paths.push_back (p.substr (7));
2702                 }
2703         }
2704
2705         return 0;
2706 }
2707
2708 void
2709 Editor::new_tempo_section ()
2710
2711 {
2712 }
2713
2714 void
2715 Editor::map_transport_state ()
2716 {
2717         ENSURE_GUI_THREAD (mem_fun(*this, &Editor::map_transport_state));
2718
2719         if (session->transport_stopped()) {
2720                 have_pending_keyboard_selection = false;
2721         }
2722 }
2723
2724 /* UNDO/REDO */
2725
2726 Editor::State::State ()
2727 {
2728         selection = new Selection;
2729 }
2730
2731 Editor::State::~State ()
2732 {
2733         delete selection;
2734 }
2735
2736 UndoAction
2737 Editor::get_memento () const
2738 {
2739         State *state = new State;
2740
2741         store_state (*state);
2742         return bind (mem_fun (*(const_cast<Editor*>(this)), &Editor::restore_state), state);
2743 }
2744
2745 void
2746 Editor::store_state (State& state) const
2747 {
2748         *state.selection = *selection;
2749 }
2750
2751 void
2752 Editor::restore_state (State *state)
2753 {
2754         if (*selection == *state->selection) {
2755                 return;
2756         }
2757
2758         *selection = *state->selection;
2759         time_selection_changed ();
2760         region_selection_changed ();
2761
2762         /* XXX other selection change handlers? */
2763 }
2764
2765 void
2766 Editor::begin_reversible_command (string name)
2767 {
2768         if (session) {
2769                 before = &get_state();
2770                 session->begin_reversible_command (name);
2771         }
2772 }
2773
2774 void
2775 Editor::commit_reversible_command ()
2776 {
2777         if (session) {
2778                 session->commit_reversible_command (new MementoCommand<Editor>(*this, before, &get_state()));
2779         }
2780 }
2781
2782 void
2783 Editor::set_edit_group_solo (Route& route, bool yn)
2784 {
2785         RouteGroup *edit_group;
2786
2787         if ((edit_group = route.edit_group()) != 0) {
2788                 edit_group->apply (&Route::set_solo, yn, this);
2789         } else {
2790                 route.set_solo (yn, this);
2791         }
2792 }
2793
2794 void
2795 Editor::set_edit_group_mute (Route& route, bool yn)
2796 {
2797         RouteGroup *edit_group = 0;
2798
2799         if ((edit_group == route.edit_group()) != 0) {
2800                 edit_group->apply (&Route::set_mute, yn, this);
2801         } else {
2802                 route.set_mute (yn, this);
2803         }
2804 }
2805
2806 void
2807 Editor::history_changed ()
2808 {
2809         string label;
2810
2811         if (undo_action && session) {
2812                 if (session->undo_depth() == 0) {
2813                         label = _("Undo");
2814                 } else {
2815                         label = string_compose(_("Undo (%1)"), session->next_undo());
2816                 }
2817                 undo_action->property_label() = label;
2818         }
2819
2820         if (redo_action && session) {
2821                 if (session->redo_depth() == 0) {
2822                         label = _("Redo");
2823                 } else {
2824                         label = string_compose(_("Redo (%1)"), session->next_redo());
2825                 }
2826                 redo_action->property_label() = label;
2827         }
2828 }
2829
2830 void
2831 Editor::duplicate_dialog (bool dup_region)
2832 {
2833         if (dup_region) {
2834                 if (clicked_regionview == 0) {
2835                         return;
2836                 }
2837         } else {
2838                 if (selection->time.length() == 0) {
2839                         return;
2840                 }
2841         }
2842
2843         ArdourDialog win ("duplicate dialog");
2844         Entry  entry;
2845         Label  label (_("Duplicate how many times?"));
2846
2847         win.get_vbox()->pack_start (label);
2848         win.add_action_widget (entry, RESPONSE_ACCEPT);
2849         win.add_button (Stock::OK, RESPONSE_ACCEPT);
2850         win.add_button (Stock::CANCEL, RESPONSE_CANCEL);
2851
2852         win.set_position (WIN_POS_MOUSE);
2853
2854         entry.set_text ("1");
2855         set_size_request_to_display_given_text (entry, X_("12345678"), 20, 15);
2856         entry.select_region (0, -1);
2857         entry.grab_focus ();
2858
2859
2860         switch (win.run ()) {
2861         case RESPONSE_ACCEPT:
2862                 break;
2863         default:
2864                 return;
2865         }
2866
2867         string text = entry.get_text();
2868         float times;
2869
2870         if (sscanf (text.c_str(), "%f", &times) == 1) {
2871                 if (dup_region) {
2872                         RegionSelection regions;
2873                         regions.add (clicked_regionview);
2874                         duplicate_some_regions (regions, times);
2875                 } else {
2876                         duplicate_selection (times);
2877                 }
2878         }
2879 }
2880
2881 void
2882 Editor::show_verbose_canvas_cursor ()
2883 {
2884         verbose_canvas_cursor->raise_to_top();
2885         verbose_canvas_cursor->show();
2886         verbose_cursor_visible = true;
2887 }
2888
2889 void
2890 Editor::hide_verbose_canvas_cursor ()
2891 {
2892         verbose_canvas_cursor->hide();
2893         verbose_cursor_visible = false;
2894 }
2895
2896 void
2897 Editor::set_verbose_canvas_cursor (const string & txt, double x, double y)
2898 {
2899         /* XXX get origin of canvas relative to root window,
2900            add x and y and check compared to gdk_screen_{width,height}
2901         */
2902         verbose_canvas_cursor->property_text() = txt.c_str();
2903         verbose_canvas_cursor->property_x() = x;
2904         verbose_canvas_cursor->property_y() = y;
2905 }
2906
2907 void
2908 Editor::set_verbose_canvas_cursor_text (const string & txt)
2909 {
2910         verbose_canvas_cursor->property_text() = txt.c_str();
2911 }
2912
2913 void
2914 Editor::edit_mode_selection_done ()
2915 {
2916         if (session == 0) {
2917                 return;
2918         }
2919
2920         string choice = edit_mode_selector.get_active_text();
2921         EditMode mode = Slide;
2922
2923         if (choice == _("Splice Edit")) {
2924                 mode = Splice;
2925         } else if (choice == _("Slide Edit")) {
2926                 mode = Slide;
2927         }
2928
2929         Config->set_edit_mode (mode);
2930 }
2931
2932 void
2933 Editor::snap_type_selection_done ()
2934 {
2935         string choice = snap_type_selector.get_active_text();
2936         SnapType snaptype = SnapToFrame;
2937
2938         if (choice == _("Beats/3")) {
2939                 snaptype = SnapToAThirdBeat;
2940         } else if (choice == _("Beats/4")) {
2941                 snaptype = SnapToAQuarterBeat;
2942         } else if (choice == _("Beats/8")) {
2943                 snaptype = SnapToAEighthBeat;
2944         } else if (choice == _("Beats/16")) {
2945                 snaptype = SnapToASixteenthBeat;
2946         } else if (choice == _("Beats/32")) {
2947                 snaptype = SnapToAThirtysecondBeat;
2948         } else if (choice == _("Beats")) {
2949                 snaptype = SnapToBeat;
2950         } else if (choice == _("Bars")) {
2951                 snaptype = SnapToBar;
2952         } else if (choice == _("Marks")) {
2953                 snaptype = SnapToMark;
2954         } else if (choice == _("Edit Cursor")) {
2955                 snaptype = SnapToEditCursor;
2956         } else if (choice == _("Region starts")) {
2957                 snaptype = SnapToRegionStart;
2958         } else if (choice == _("Region ends")) {
2959                 snaptype = SnapToRegionEnd;
2960         } else if (choice == _("Region bounds")) {
2961                 snaptype = SnapToRegionBoundary;
2962         } else if (choice == _("Region syncs")) {
2963                 snaptype = SnapToRegionSync;
2964         } else if (choice == _("CD Frames")) {
2965                 snaptype = SnapToCDFrame;
2966         } else if (choice == _("SMPTE Frames")) {
2967                 snaptype = SnapToSMPTEFrame;
2968         } else if (choice == _("SMPTE Seconds")) {
2969                 snaptype = SnapToSMPTESeconds;
2970         } else if (choice == _("SMPTE Minutes")) {
2971                 snaptype = SnapToSMPTEMinutes;
2972         } else if (choice == _("Seconds")) {
2973                 snaptype = SnapToSeconds;
2974         } else if (choice == _("Minutes")) {
2975                 snaptype = SnapToMinutes;
2976         } else if (choice == _("None")) {
2977                 snaptype = SnapToFrame;
2978         }
2979
2980         RefPtr<RadioAction> ract = snap_type_action (snaptype);
2981         if (ract) {
2982                 ract->set_active ();
2983         }
2984 }
2985
2986 void
2987 Editor::snap_mode_selection_done ()
2988 {
2989         string choice = snap_mode_selector.get_active_text();
2990         SnapMode mode = SnapNormal;
2991
2992         if (choice == _("Normal")) {
2993                 mode = SnapNormal;
2994         } else if (choice == _("Magnetic")) {
2995                 mode = SnapMagnetic;
2996         }
2997
2998         RefPtr<RadioAction> ract = snap_mode_action (mode);
2999
3000         if (ract) {
3001                 ract->set_active (true);
3002         }
3003 }
3004
3005 void
3006 Editor::zoom_focus_selection_done ()
3007 {
3008         string choice = zoom_focus_selector.get_active_text();
3009         ZoomFocus focus_type = ZoomFocusLeft;
3010
3011         if (choice == _("Left")) {
3012                 focus_type = ZoomFocusLeft;
3013         } else if (choice == _("Right")) {
3014                 focus_type = ZoomFocusRight;
3015         } else if (choice == _("Center")) {
3016                 focus_type = ZoomFocusCenter;
3017         } else if (choice == _("Playhead")) {
3018                 focus_type = ZoomFocusPlayhead;
3019         } else if (choice == _("Edit Cursor")) {
3020                 focus_type = ZoomFocusEdit;
3021         }
3022
3023         RefPtr<RadioAction> ract = zoom_focus_action (focus_type);
3024
3025         if (ract) {
3026                 ract->set_active ();
3027         }
3028 }
3029
3030 gint
3031 Editor::edit_controls_button_release (GdkEventButton* ev)
3032 {
3033         if (Keyboard::is_context_menu_event (ev)) {
3034                 ARDOUR_UI::instance()->add_route ();
3035         }
3036         return TRUE;
3037 }
3038
3039 void
3040 Editor::track_selection_changed ()
3041 {
3042         switch (selection->tracks.size()){
3043         case 0:
3044                 break;
3045         default:
3046                 set_selected_mixer_strip (*(selection->tracks.front()));
3047                 break;
3048         }
3049
3050         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3051                 (*i)->set_selected (false);
3052                 if (mouse_mode == MouseRange) {
3053                         (*i)->hide_selection ();
3054                 }
3055         }
3056
3057         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3058                 (*i)->set_selected (true);
3059                 if (mouse_mode == MouseRange) {
3060                         (*i)->show_selection (selection->time);
3061                 }
3062         }
3063 }
3064
3065 void
3066 Editor::time_selection_changed ()
3067 {
3068         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3069                 (*i)->hide_selection ();
3070         }
3071
3072         if (selection->tracks.empty()) {
3073                 for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3074                         (*i)->show_selection (selection->time);
3075                 }
3076         } else {
3077                 for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3078                         (*i)->show_selection (selection->time);
3079                 }
3080         }
3081
3082         if (selection->time.empty()) {
3083                 ActionManager::set_sensitive (ActionManager::time_selection_sensitive_actions, false);
3084         } else {
3085                 ActionManager::set_sensitive (ActionManager::time_selection_sensitive_actions, true);
3086         }
3087 }
3088
3089 void
3090 Editor::region_selection_changed ()
3091 {
3092         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3093                 (*i)->set_selected_regionviews (selection->regions);
3094         }
3095 }
3096
3097 void
3098 Editor::point_selection_changed ()
3099 {
3100         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3101                 (*i)->set_selected_points (selection->points);
3102         }
3103 }
3104
3105 gint
3106 Editor::mouse_select_button_release (GdkEventButton* ev)
3107 {
3108         /* this handles just right-clicks */
3109
3110         if (ev->button != 3) {
3111                 return FALSE;
3112         }
3113
3114         return TRUE;
3115 }
3116
3117 Editor::TrackViewList *
3118 Editor::get_valid_views (TimeAxisView* track, RouteGroup* group)
3119 {
3120         TrackViewList *v;
3121         TrackViewList::iterator i;
3122
3123         v = new TrackViewList;
3124
3125         if (track == 0 && group == 0) {
3126
3127                 /* all views */
3128
3129                 for (i = track_views.begin(); i != track_views.end (); ++i) {
3130                         v->push_back (*i);
3131                 }
3132
3133         } else if (track != 0 && group == 0 || (track != 0 && group != 0 && !group->is_active())) {
3134
3135                 /* just the view for this track
3136                  */
3137
3138                 v->push_back (track);
3139
3140         } else {
3141
3142                 /* views for all tracks in the edit group */
3143
3144                 for (i  = track_views.begin(); i != track_views.end (); ++i) {
3145
3146                         if (group == 0 || (*i)->edit_group() == group) {
3147                                 v->push_back (*i);
3148                         }
3149                 }
3150         }
3151
3152         return v;
3153 }
3154
3155 void
3156 Editor::set_zoom_focus (ZoomFocus f)
3157 {
3158         string str = zoom_focus_strings[(int)f];
3159
3160         if (str != zoom_focus_selector.get_active_text()) {
3161                 zoom_focus_selector.set_active_text (str);
3162         }
3163
3164         if (zoom_focus != f) {
3165                 zoom_focus = f;
3166
3167                 ZoomFocusChanged (); /* EMIT_SIGNAL */
3168
3169                 instant_save ();
3170         }
3171 }
3172
3173 void
3174 Editor::ensure_float (Window& win)
3175 {
3176         win.set_transient_for (*this);
3177 }
3178
3179 void
3180 Editor::pane_allocation_handler (Allocation &alloc, Paned* which)
3181 {
3182         /* recover or initialize pane positions. do this here rather than earlier because
3183            we don't want the positions to change the child allocations, which they seem to do.
3184          */
3185
3186         int pos;
3187         XMLProperty* prop;
3188         char buf[32];
3189         XMLNode* node = ARDOUR_UI::instance()->editor_settings();
3190         int width, height;
3191         static int32_t done;
3192         XMLNode* geometry;
3193
3194         if ((geometry = find_named_node (*node, "geometry")) == 0) {
3195                 width = default_width;
3196                 height = default_height;
3197         } else {
3198                 width = atoi(geometry->property("x_size")->value());
3199                 height = atoi(geometry->property("y_size")->value());
3200         }
3201
3202         if (which == static_cast<Paned*> (&edit_pane)) {
3203
3204                 if (done) {
3205                         return;
3206                 }
3207
3208                 if (!geometry || (prop = geometry->property ("edit_pane_pos")) == 0) {
3209                         /* initial allocation is 90% to canvas, 10% to notebook */
3210                         pos = (int) floor (alloc.get_width() * 0.90f);
3211                         snprintf (buf, sizeof(buf), "%d", pos);
3212                 } else {
3213                         pos = atoi (prop->value());
3214                 }
3215
3216                 if ((done = GTK_WIDGET(edit_pane.gobj())->allocation.width > pos)) {
3217                         edit_pane.set_position (pos);
3218                         pre_maximal_pane_position = pos;
3219                 }
3220         }
3221 }
3222
3223 void
3224 Editor::detach_tearoff (Box* b, Window* w)
3225 {
3226         if (tools_tearoff->torn_off() &&
3227             mouse_mode_tearoff->torn_off()) {
3228                 top_hbox.remove (toolbar_frame);
3229         }
3230 }
3231
3232 void
3233 Editor::reattach_tearoff (Box* b, Window* w, int32_t n)
3234 {
3235         if (toolbar_frame.get_parent() == 0) {
3236                 top_hbox.pack_end (toolbar_frame);
3237         }
3238 }
3239
3240 void
3241 Editor::set_show_measures (bool yn)
3242 {
3243         if (_show_measures != yn) {
3244                 hide_measures ();
3245
3246                 if ((_show_measures = yn) == true) {
3247                         draw_measures ();
3248                 }
3249                 DisplayControlChanged (ShowMeasures);
3250                 instant_save ();
3251         }
3252 }
3253
3254 void
3255 Editor::toggle_follow_playhead ()
3256 {
3257         RefPtr<Action> act = ActionManager::get_action (X_("Editor"), X_("toggle-follow-playhead"));
3258         if (act) {
3259                 RefPtr<ToggleAction> tact = RefPtr<ToggleAction>::cast_dynamic(act);
3260                 set_follow_playhead (tact->get_active());
3261         }
3262 }
3263
3264 void
3265 Editor::set_follow_playhead (bool yn)
3266 {
3267         if (_follow_playhead != yn) {
3268                 if ((_follow_playhead = yn) == true) {
3269                         /* catch up */
3270                         update_current_screen ();
3271                 }
3272                 DisplayControlChanged (FollowPlayhead);
3273                 instant_save ();
3274         }
3275 }
3276
3277 void
3278 Editor::toggle_xfade_active (boost::weak_ptr<Crossfade> wxfade)
3279 {
3280         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3281         if (xfade) {
3282                 xfade->set_active (!xfade->active());
3283         }
3284 }
3285
3286 void
3287 Editor::toggle_xfade_length (boost::weak_ptr<Crossfade> wxfade)
3288 {
3289         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3290         if (xfade) {
3291                 xfade->set_follow_overlap (!xfade->following_overlap());
3292         }
3293 }
3294
3295 void
3296 Editor::edit_xfade (boost::weak_ptr<Crossfade> wxfade)
3297 {
3298         boost::shared_ptr<Crossfade> xfade (wxfade.lock());
3299
3300         if (!xfade) {
3301                 return;
3302         }
3303
3304         CrossfadeEditor cew (*session, xfade, xfade->fade_in().get_min_y(), 1.0);
3305
3306         ensure_float (cew);
3307
3308         switch (cew.run ()) {
3309         case RESPONSE_ACCEPT:
3310                 break;
3311         default:
3312                 return;
3313         }
3314
3315         cew.apply ();
3316         xfade->StateChanged (Change (~0));
3317 }
3318
3319 PlaylistSelector&
3320 Editor::playlist_selector () const
3321 {
3322         return *_playlist_selector;
3323 }
3324
3325 nframes_t
3326 Editor::get_nudge_distance (nframes_t pos, nframes_t& next)
3327 {
3328         nframes_t ret;
3329
3330         ret = nudge_clock.current_duration (pos);
3331         next = ret + 1; /* XXXX fix me */
3332
3333         return ret;
3334 }
3335
3336 void
3337 Editor::end_location_changed (Location* location)
3338 {
3339         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::end_location_changed), location));
3340         reset_scrolling_region ();
3341 }
3342
3343 int
3344 Editor::playlist_deletion_dialog (boost::shared_ptr<Playlist> pl)
3345 {
3346         ArdourDialog dialog ("playlist deletion dialog");
3347         Label  label (string_compose (_("Playlist %1 is currently unused.\n"
3348                                         "If left alone, no audio files used by it will be cleaned.\n"
3349                                         "If deleted, audio files used by it alone by will cleaned."),
3350                                       pl->name()));
3351
3352         dialog.set_position (WIN_POS_CENTER);
3353         dialog.get_vbox()->pack_start (label);
3354
3355         label.show ();
3356
3357         dialog.add_button (_("Delete playlist"), RESPONSE_ACCEPT);
3358         dialog.add_button (_("Keep playlist"), RESPONSE_CANCEL);
3359         dialog.add_button (_("Cancel"), RESPONSE_CANCEL);
3360
3361         switch (dialog.run ()) {
3362         case RESPONSE_ACCEPT:
3363                 /* delete the playlist */
3364                 return 0;
3365                 break;
3366
3367         case RESPONSE_REJECT:
3368                 /* keep the playlist */
3369                 return 1;
3370                 break;
3371
3372         default:
3373                 break;
3374         }
3375
3376         return -1;
3377 }
3378
3379 bool
3380 Editor::audio_region_selection_covers (nframes_t where)
3381 {
3382         for (RegionSelection::iterator a = selection->regions.begin(); a != selection->regions.end(); ++a) {
3383                 if ((*a)->region()->covers (where)) {
3384                         return true;
3385                 }
3386         }
3387
3388         return false;
3389 }
3390
3391 void
3392 Editor::prepare_for_cleanup ()
3393 {
3394         cut_buffer->clear_regions ();
3395         cut_buffer->clear_playlists ();
3396
3397         selection->clear_regions ();
3398         selection->clear_playlists ();
3399 }
3400
3401 Location*
3402 Editor::transport_loop_location()
3403 {
3404         if (session) {
3405                 return session->locations()->auto_loop_location();
3406         } else {
3407                 return 0;
3408         }
3409 }
3410
3411 Location*
3412 Editor::transport_punch_location()
3413 {
3414         if (session) {
3415                 return session->locations()->auto_punch_location();
3416         } else {
3417                 return 0;
3418         }
3419 }
3420
3421 bool
3422 Editor::control_layout_scroll (GdkEventScroll* ev)
3423 {
3424         switch (ev->direction) {
3425         case GDK_SCROLL_UP:
3426                 scroll_tracks_up_line ();
3427                 return true;
3428                 break;
3429
3430         case GDK_SCROLL_DOWN:
3431                 scroll_tracks_down_line ();
3432                 return true;
3433
3434         default:
3435                 /* no left/right handling yet */
3436                 break;
3437         }
3438
3439         return false;
3440 }
3441
3442 void
3443 Editor::snapshot_display_selection_changed ()
3444 {
3445         if (snapshot_display.get_selection()->count_selected_rows() > 0) {
3446
3447                 TreeModel::iterator i = snapshot_display.get_selection()->get_selected();
3448
3449                 Glib::ustring snap_name = (*i)[snapshot_display_columns.real_name];
3450
3451                 if (snap_name.length() == 0) {
3452                         return;
3453                 }
3454
3455                 if (session->snap_name() == snap_name) {
3456                         return;
3457                 }
3458
3459                 ARDOUR_UI::instance()->load_session(session->path(), string (snap_name));
3460         }
3461 }
3462
3463 bool
3464 Editor::snapshot_display_button_press (GdkEventButton* ev)
3465 {
3466          return false;
3467 }
3468
3469 void
3470 Editor::redisplay_snapshots ()
3471 {
3472         if (session == 0) {
3473                 return;
3474         }
3475
3476         vector<string*>* states;
3477
3478         if ((states = session->possible_states()) == 0) {
3479                 return;
3480         }
3481
3482         snapshot_display_model->clear ();
3483
3484         for (vector<string*>::iterator i = states->begin(); i != states->end(); ++i) {
3485                 string statename = *(*i);
3486                 TreeModel::Row row = *(snapshot_display_model->append());
3487
3488                 /* this lingers on in case we ever want to change the visible
3489                    name of the snapshot.
3490                 */
3491
3492                 string display_name;
3493                 display_name = statename;
3494
3495                 if (statename == session->snap_name()) {
3496                         snapshot_display.get_selection()->select(row);
3497                 }
3498
3499                 row[snapshot_display_columns.visible_name] = display_name;
3500                 row[snapshot_display_columns.real_name] = statename;
3501         }
3502
3503         delete states;
3504 }
3505
3506 void
3507 Editor::session_state_saved (string snap_name)
3508 {
3509         ENSURE_GUI_THREAD (bind (mem_fun(*this, &Editor::session_state_saved), snap_name));
3510         redisplay_snapshots ();
3511 }
3512
3513 void
3514 Editor::maximise_editing_space ()
3515 {
3516         initial_ruler_update_required = true;
3517
3518         mouse_mode_tearoff->set_visible (false);
3519         tools_tearoff->set_visible (false);
3520
3521         pre_maximal_pane_position = edit_pane.get_position();
3522         pre_maximal_editor_width = this->get_width();
3523
3524         if(post_maximal_pane_position == 0) {
3525                 post_maximal_pane_position = edit_pane.get_width();
3526         }
3527
3528
3529         fullscreen();
3530         if(post_maximal_editor_width) {
3531                 edit_pane.set_position (post_maximal_pane_position -
3532                         abs(post_maximal_editor_width - pre_maximal_editor_width));
3533         } else {
3534                 edit_pane.set_position (post_maximal_pane_position);
3535         }
3536 }
3537
3538 void
3539 Editor::restore_editing_space ()
3540 {
3541         initial_ruler_update_required = true;
3542
3543         // user changed width of pane during fullscreen
3544         if(post_maximal_pane_position != edit_pane.get_position()) {
3545                 post_maximal_pane_position = edit_pane.get_position();
3546         }
3547
3548         unfullscreen();
3549
3550         mouse_mode_tearoff->set_visible (true);
3551         tools_tearoff->set_visible (true);
3552         post_maximal_editor_width = this->get_width();
3553
3554
3555         edit_pane.set_position (
3556                 pre_maximal_pane_position + abs(this->get_width() - pre_maximal_editor_width)
3557         );
3558 }
3559
3560 void
3561 Editor::new_playlists ()
3562 {
3563         begin_reversible_command (_("new playlists"));
3564         mapover_audio_tracks (mem_fun (*this, &Editor::mapped_use_new_playlist));
3565         commit_reversible_command ();
3566 }
3567
3568 void
3569 Editor::copy_playlists ()
3570 {
3571         begin_reversible_command (_("copy playlists"));
3572         mapover_audio_tracks (mem_fun (*this, &Editor::mapped_use_copy_playlist));
3573         commit_reversible_command ();
3574 }
3575
3576 void
3577 Editor::clear_playlists ()
3578 {
3579         begin_reversible_command (_("clear playlists"));
3580         mapover_audio_tracks (mem_fun (*this, &Editor::mapped_clear_playlist));
3581         commit_reversible_command ();
3582 }
3583
3584 void
3585 Editor::mapped_use_new_playlist (AudioTimeAxisView& atv, uint32_t sz)
3586 {
3587         atv.use_new_playlist (sz > 1 ? false : true);
3588 }
3589
3590 void
3591 Editor::mapped_use_copy_playlist (AudioTimeAxisView& atv, uint32_t sz)
3592 {
3593         atv.use_copy_playlist (sz > 1 ? false : true);
3594 }
3595
3596 void
3597 Editor::mapped_clear_playlist (AudioTimeAxisView& atv, uint32_t sz)
3598 {
3599         atv.clear_playlist ();
3600 }
3601
3602 bool
3603 Editor::on_key_press_event (GdkEventKey* ev)
3604 {
3605         return key_press_focus_accelerator_handler (*this, ev);
3606 }
3607
3608 void
3609 Editor::reset_x_origin (nframes_t frame)
3610 {
3611         queue_visual_change (frame);
3612 }
3613
3614 void
3615 Editor::reset_zoom (double fpu)
3616 {
3617         queue_visual_change (fpu);
3618 }
3619
3620 void
3621 Editor::reposition_and_zoom (nframes_t frame, double fpu)
3622 {
3623         reset_x_origin (frame);
3624         reset_zoom (fpu);
3625 }
3626
3627 void
3628 Editor::set_frames_per_unit (double fpu)
3629 {
3630         nframes_t frames;
3631
3632         /* this is the core function that controls the zoom level of the canvas. it is called
3633            whenever one or more calls are made to reset_zoom(). it executes in an idle handler.
3634         */
3635
3636         if (fpu == frames_per_unit) {
3637                 return;
3638         }
3639
3640         if (fpu < 2.0) {
3641                 fpu = 2.0;
3642         }
3643
3644         // convert fpu to frame count
3645
3646         frames = (nframes_t) floor (fpu * canvas_width);
3647
3648         /* don't allow zooms that fit more than the maximum number
3649            of frames into an 800 pixel wide space.
3650         */
3651
3652         if (max_frames / fpu < 800.0) {
3653                 return;
3654         }
3655
3656         if (fpu == frames_per_unit) {
3657                 return;
3658         }
3659
3660         frames_per_unit = fpu;
3661
3662         if (frames != zoom_range_clock.current_duration()) {
3663                 zoom_range_clock.set (frames);
3664         }
3665
3666         if (mouse_mode == MouseRange && selection->time.start () != selection->time.end_frame ()) {
3667                 if (!selection->tracks.empty()) {
3668                         for (TrackSelection::iterator i = selection->tracks.begin(); i != selection->tracks.end(); ++i) {
3669                                 (*i)->reshow_selection (selection->time);
3670                         }
3671                 } else {
3672                         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
3673                                 (*i)->reshow_selection (selection->time);
3674                         }
3675                 }
3676         }
3677
3678         ZoomChanged (); /* EMIT_SIGNAL */
3679
3680         reset_hscrollbar_stepping ();
3681         reset_scrolling_region ();
3682
3683         if (edit_cursor) edit_cursor->set_position (edit_cursor->current_frame);
3684         if (playhead_cursor) playhead_cursor->set_position (playhead_cursor->current_frame);
3685
3686         instant_save ();
3687 }
3688
3689 void
3690 Editor::canvas_horizontally_scrolled ()
3691 {
3692         /* this is the core function that controls horizontal scrolling of the canvas. it is called
3693            whenever the horizontal_adjustment emits its "value_changed" signal. it executes in an
3694            idle handler.
3695         */
3696
3697         leftmost_frame = (nframes_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
3698         nframes_t rightmost_frame = leftmost_frame + current_page_frames ();
3699
3700         if (rightmost_frame > last_canvas_frame) {
3701                 last_canvas_frame = rightmost_frame;
3702                 reset_scrolling_region ();
3703         }
3704
3705         update_fixed_rulers ();
3706         tempo_map_changed (Change (0));
3707 }
3708
3709 void
3710 Editor::queue_visual_change (nframes_t where)
3711 {
3712         pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::TimeOrigin);
3713         pending_visual_change.time_origin = where;
3714
3715         if (pending_visual_change.idle_handler_id < 0) {
3716                 pending_visual_change.idle_handler_id = g_idle_add (_idle_visual_changer, this);
3717         }
3718 }
3719
3720 void
3721 Editor::queue_visual_change (double fpu)
3722 {
3723         pending_visual_change.pending = VisualChange::Type (pending_visual_change.pending | VisualChange::ZoomLevel);
3724         pending_visual_change.frames_per_unit = fpu;
3725
3726         if (pending_visual_change.idle_handler_id < 0) {
3727                 pending_visual_change.idle_handler_id = g_idle_add_full (G_PRIORITY_HIGH_IDLE, _idle_visual_changer, this, 0);
3728         }
3729 }
3730
3731 int
3732 Editor::_idle_visual_changer (void* arg)
3733 {
3734         return static_cast<Editor*>(arg)->idle_visual_changer ();
3735 }
3736
3737 int
3738 Editor::idle_visual_changer ()
3739 {
3740         VisualChange::Type p = pending_visual_change.pending;
3741
3742         pending_visual_change.pending = (VisualChange::Type) 0;
3743         pending_visual_change.idle_handler_id = -1;
3744
3745         if (p & VisualChange::ZoomLevel) {
3746                 set_frames_per_unit (pending_visual_change.frames_per_unit);
3747         }
3748
3749         if (p & VisualChange::TimeOrigin) {
3750                 if (pending_visual_change.time_origin != leftmost_frame) {
3751                         horizontal_adjustment.set_value (pending_visual_change.time_origin/frames_per_unit);
3752                         /* the signal handler will do the rest */
3753                 } else {
3754                         update_fixed_rulers();
3755                         tempo_map_changed (Change (0));
3756                 }
3757         }
3758
3759         return 0;
3760 }
3761
3762 struct EditorOrderTimeAxisSorter {
3763     bool operator() (const TimeAxisView* a, const TimeAxisView* b) const {
3764             return a->order < b->order;
3765     }
3766 };
3767
3768 void
3769 Editor::sort_track_selection ()
3770 {
3771         EditorOrderTimeAxisSorter cmp;
3772         selection->tracks.sort (cmp);
3773 }
3774