gtk2_ardour/editor_canvas.cc

   1 /*
   2     Copyright (C) 2005 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 <libgnomecanvasmm/init.h>
  22 #include <jack/types.h>
  23
  24 #include <ardour/audioregion.h>
  25
  26 #include "ardour_ui.h"
  27 #include "editor.h"
  28 #include "waveview.h"
  29 #include "simplerect.h"
  30 #include "simpleline.h"
  31 #include "imageframe.h"
  32 #include "waveview_p.h"
  33 #include "simplerect_p.h"
  34 #include "simpleline_p.h"
  35 #include "imageframe_p.h"
  36 #include "canvas_impl.h"
  37 #include "editing.h"
  38 #include "rgb_macros.h"
  39 #include "utils.h"
  40 #include "time_axis_view.h"
  41 #include "audio_time_axis.h"
  42
  43 #include "i18n.h"
  44
  45 using namespace std;
  46 using namespace sigc;
  47 using namespace ARDOUR;
  48 using namespace Gtk;
  49 using namespace Glib;
  50 using namespace Gtkmm2ext;
  51 using namespace Editing;
  52
  53 /* XXX this is a hack. it ought to be the maximum value of an jack_nframes_t */
  54
  55 const double max_canvas_coordinate = (double) JACK_MAX_FRAMES;
  56
  57 extern "C"
  58 {
  59
  60 GType gnome_canvas_simpleline_get_type(void);
  61 GType gnome_canvas_simplerect_get_type(void);
  62 GType gnome_canvas_waveview_get_type(void);
  63 GType gnome_canvas_imageframe_get_type(void);
  64
  65 }
  66
  67 static void ardour_canvas_type_init()
  68 {
  69         // Map gtypes to gtkmm wrapper-creation functions:
  70
  71         Glib::wrap_register(gnome_canvas_simpleline_get_type(), &Gnome::Canvas::SimpleLine_Class::wrap_new);
  72         Glib::wrap_register(gnome_canvas_simplerect_get_type(), &Gnome::Canvas::SimpleRect_Class::wrap_new);
  73         Glib::wrap_register(gnome_canvas_waveview_get_type(), &Gnome::Canvas::WaveView_Class::wrap_new);
  74         Glib::wrap_register(gnome_canvas_imageframe_get_type(), &Gnome::Canvas::ImageFrame_Class::wrap_new);
  75
  76         // Register the gtkmm gtypes:
  77
  78         (void) Gnome::Canvas::WaveView::get_type();
  79         (void) Gnome::Canvas::SimpleLine::get_type();
  80         (void) Gnome::Canvas::SimpleRect::get_type();
  81         (void) Gnome::Canvas::ImageFrame::get_type();
  82 }
  83
  84 void
  85 Editor::initialize_canvas ()
  86 {
  87         ArdourCanvas::init ();
  88         ardour_canvas_type_init ();
  89
  90         /* don't try to center the canvas */
  91
  92         track_canvas.set_center_scroll_region (false);
  93
  94         track_canvas.signal_event().connect (bind (mem_fun (*this, &Editor::track_canvas_event), (ArdourCanvas::Item*) 0));
  95         track_canvas.set_name ("EditorMainCanvas");
  96         track_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
  97         track_canvas.signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
  98         track_canvas.set_flags (CAN_FOCUS);
  99
 100         /* set up drag-n-drop */
 101
 102         vector<TargetEntry> target_table;
 103
 104         // Drag-N-Drop from the region list can generate this target
 105         target_table.push_back (TargetEntry ("regions"));
 106
 107         target_table.push_back (TargetEntry ("text/plain"));
 108         target_table.push_back (TargetEntry ("text/uri-list"));
 109         target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 110
 111         track_canvas.drag_dest_set (target_table);
 112         track_canvas.signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
 113
 114         /* stuff for the verbose canvas cursor */
 115
 116         Pango::FontDescription font = get_font_for_style (N_("VerboseCanvasCursor"));
 117
 118         verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas.root());
 119         verbose_canvas_cursor->property_font_desc() = font;
 120         verbose_canvas_cursor->property_anchor() = ANCHOR_NW;
 121         verbose_canvas_cursor->property_fill_color_rgba() = color_map[cVerboseCanvasCursor];
 122
 123         verbose_cursor_visible = false;
 124
 125         /* a group to hold time (measure) lines */
 126
 127         time_line_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
 128         cursor_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
 129
 130         time_canvas.set_name ("EditorTimeCanvas");
 131         time_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK);
 132         time_canvas.set_flags (CAN_FOCUS);
 133         time_canvas.set_center_scroll_region (false);
 134
 135         meter_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
 136         tempo_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height);
 137         marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 2.0);
 138         range_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 3.0);
 139         transport_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 4.0);
 140
 141         tempo_bar = new ArdourCanvas::SimpleRect (*tempo_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
 142         tempo_bar->property_fill_color_rgba() = color_map[cTempoBar];
 143         tempo_bar->property_outline_pixels() = 0;
 144
 145         meter_bar = new ArdourCanvas::SimpleRect (*meter_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
 146         meter_bar->property_fill_color_rgba() = color_map[cMeterBar];
 147         meter_bar->property_outline_pixels() = 0;
 148
 149         marker_bar = new ArdourCanvas::SimpleRect (*marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
 150         marker_bar->property_fill_color_rgba() = color_map[cMarkerBar];
 151         marker_bar->property_outline_pixels() = 0;
 152
 153         range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
 154         range_marker_bar->property_fill_color_rgba() = color_map[cRangeMarkerBar];
 155         range_marker_bar->property_outline_pixels() = 0;
 156
 157         transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
 158         transport_marker_bar->property_fill_color_rgba() = color_map[cTransportMarkerBar];
 159         transport_marker_bar->property_outline_pixels() = 0;
 160
 161         range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
 162         range_bar_drag_rect->property_fill_color_rgba() = color_map[cRangeDragBarRectFill];
 163         range_bar_drag_rect->property_outline_color_rgba() = color_map[cRangeDragBarRect];
 164         range_bar_drag_rect->property_outline_pixels() = 0;
 165         range_bar_drag_rect->hide ();
 166
 167         transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height);
 168         transport_bar_drag_rect ->property_fill_color_rgba() = color_map[cTransportDragRectFill];
 169         transport_bar_drag_rect->property_outline_color_rgba() = color_map[cTransportDragRect];
 170         transport_bar_drag_rect->property_outline_pixels() = 0;
 171         transport_bar_drag_rect->hide ();
 172
 173         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
 174         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
 175
 176         marker_drag_line = new ArdourCanvas::Line (*track_canvas.root());
 177         marker_drag_line->property_width_pixels() = 1;
 178         marker_drag_line->property_fill_color_rgba() = color_map[cMarkerDragLine];
 179         marker_drag_line->property_points() = marker_drag_line_points;
 180         marker_drag_line->hide();
 181
 182         range_marker_drag_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
 183         range_marker_drag_rect->property_fill_color_rgba() = color_map[cRangeDragRectFill];
 184         range_marker_drag_rect->property_outline_color_rgba() = color_map[cRangeDragRect];
 185         range_marker_drag_rect->hide ();
 186
 187         transport_loop_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
 188         transport_loop_range_rect->property_fill_color_rgba() = color_map[cTransportLoopRectFill];
 189         transport_loop_range_rect->property_outline_color_rgba() = color_map[cTransportLoopRect];
 190         transport_loop_range_rect->property_outline_pixels() = 1;
 191         transport_loop_range_rect->hide();
 192
 193         transport_punch_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
 194         transport_punch_range_rect->property_fill_color_rgba() = color_map[cTransportPunchRectFill];
 195         transport_punch_range_rect->property_outline_color_rgba() = color_map[cTransportPunchRect];
 196         transport_punch_range_rect->property_outline_pixels() = 0;
 197         transport_punch_range_rect->hide();
 198
 199         transport_loop_range_rect->lower_to_bottom (); // loop on the bottom
 200
 201         transport_punchin_line = new ArdourCanvas::SimpleLine (*time_line_group);
 202         transport_punchin_line->property_x1() = 0.0;
 203         transport_punchin_line->property_y1() = 0.0;
 204         transport_punchin_line->property_x2() = 0.0;
 205         transport_punchin_line->property_y2() = 0.0;
 206         transport_punchin_line->property_color_rgba() = color_map[cPunchInLine];
 207         transport_punchin_line->hide ();
 208
 209         transport_punchout_line  = new ArdourCanvas::SimpleLine (*time_line_group);
 210         transport_punchout_line->property_x1() = 0.0;
 211         transport_punchout_line->property_y1() = 0.0;
 212         transport_punchout_line->property_x2() = 0.0;
 213         transport_punchout_line->property_y2() = 0.0;
 214         transport_punchout_line->property_color_rgba() = color_map[cPunchOutLine];
 215         transport_punchout_line->hide();
 216
 217         // used to show zoom mode active zooming
 218         zoom_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
 219         zoom_rect->property_fill_color_rgba() = color_map[cZoomRectFill];
 220         zoom_rect->property_outline_color_rgba() = color_map[cZoomRect];
 221         zoom_rect->property_outline_pixels() = 1;
 222         zoom_rect->hide();
 223
 224         zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
 225
 226         // used as rubberband rect
 227         rubberband_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
 228         rubberband_rect->property_outline_color_rgba() = color_map[cRubberBandRect];
 229         rubberband_rect->property_fill_color_rgba() = (guint32) color_map[cRubberBandRectFill];
 230         rubberband_rect->property_outline_pixels() = 1;
 231         rubberband_rect->hide();
 232
 233         tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
 234         meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
 235         marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
 236         range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
 237         transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
 238
 239         /* separator lines */
 240
 241         tempo_line = new ArdourCanvas::SimpleLine (*tempo_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
 242         tempo_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
 243
 244         meter_line = new ArdourCanvas::SimpleLine (*meter_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
 245         meter_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
 246
 247         marker_line = new ArdourCanvas::SimpleLine (*marker_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
 248         marker_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
 249
 250         range_marker_line = new ArdourCanvas::SimpleLine (*range_marker_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
 251         range_marker_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
 252
 253         transport_marker_line = new ArdourCanvas::SimpleLine (*transport_marker_group, 0, timebar_height, max_canvas_coordinate, timebar_height);
 254         transport_marker_line->property_color_rgba() = RGBA_TO_UINT (0,0,0,255);
 255
 256         ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_loop_range_view), false));
 257         ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_punch_range_view), false));
 258
 259         double time_height = timebar_height * 5;
 260         double time_width = FLT_MAX/frames_per_unit;
 261         time_canvas.set_scroll_region(0.0, 0.0, time_width, time_height);
 262
 263         edit_cursor = new Cursor (*this, "blue", &Editor::canvas_edit_cursor_event);
 264         playhead_cursor = new Cursor (*this, "red", &Editor::canvas_playhead_cursor_event);
 265
 266         track_canvas.signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));
 267 }
 268
 269 void
 270 Editor::track_canvas_allocate (Gtk::Allocation alloc)
 271 {
 272         static bool first_time = true;
 273
 274         canvas_width = alloc.get_width();
 275         canvas_height = alloc.get_height();
 276
 277         if (session == 0 && !ARDOUR_UI::instance()->will_create_new_session_automatically()) {
 278
 279                 /* this mess of code is here to find out how wide this text is and
 280                    position the message in the center of the editor window.
 281                 */
 282
 283                 int pixel_height;
 284                 int pixel_width;
 285
 286                 ustring msg = string_compose ("<span face=\"sans\" style=\"normal\" weight=\"bold\" size=\"x-large\">%1%2</span>",
 287                                            _("Start a new session\n"), _("via Session menu"));
 288
 289                 RefPtr<Pango::Layout> layout = create_pango_layout (msg);
 290                 Pango::FontDescription font = get_font_for_style (N_("FirstActionMessage"));
 291                 layout->get_pixel_size (pixel_width, pixel_height);
 292
 293                 if (first_action_message == 0) {
 294
 295                         first_action_message = new ArdourCanvas::Text (*track_canvas.root());
 296                         first_action_message->property_font_desc() = font;
 297                         first_action_message->property_fill_color_rgba() = color_map[cFirstActionMessage];
 298                         first_action_message->property_x() = (canvas_width - pixel_width) / 2.0;
 299                         first_action_message->property_y() = (canvas_height/2.0) - pixel_height;
 300                         first_action_message->property_anchor() = ANCHOR_NORTH_WEST;
 301                         first_action_message->property_markup() = msg;
 302
 303                 } else {
 304
 305                         /* center it */
 306                         first_action_message->property_x() = (canvas_width - pixel_width) / 2.0;
 307                         first_action_message->property_y() = (canvas_height/2.0) - pixel_height;
 308                 }
 309         }
 310
 311         zoom_range_clock.set ((jack_nframes_t) floor ((canvas_width * frames_per_unit)));
 312         edit_cursor->set_position (edit_cursor->current_frame);
 313         playhead_cursor->set_position (playhead_cursor->current_frame);
 314
 315         reset_scrolling_region ();
 316
 317         if (edit_cursor) edit_cursor->set_length (canvas_height);
 318         if (playhead_cursor) playhead_cursor->set_length (canvas_height);
 319
 320         if (marker_drag_line) {
 321                 marker_drag_line_points.back().set_x(canvas_height);
 322                 marker_drag_line->property_points() = marker_drag_line_points;
 323         }
 324
 325         if (range_marker_drag_rect) {
 326                 range_marker_drag_rect->property_y1() = 0.0;
 327                 range_marker_drag_rect->property_y2() = canvas_height;
 328         }
 329
 330         if (transport_loop_range_rect) {
 331                 transport_loop_range_rect->property_y1() = 0.0;
 332                 transport_loop_range_rect->property_y2() = canvas_height;
 333         }
 334
 335         if (transport_punch_range_rect) {
 336                 transport_punch_range_rect->property_y1() = 0.0;
 337                 transport_punch_range_rect->property_y2() = canvas_height;
 338         }
 339
 340         if (transport_punchin_line) {
 341                 transport_punchin_line->property_y1() = 0.0;
 342                 transport_punchin_line->property_y2() = canvas_height;
 343         }
 344
 345         if (transport_punchout_line) {
 346                 transport_punchout_line->property_y1() = 0.0;
 347                 transport_punchout_line->property_y2() = canvas_height;
 348         }
 349
 350         update_fixed_rulers ();
 351
 352         if (is_visible() && first_time) {
 353                 tempo_map_changed (Change (0));
 354                 first_time = false;
 355         } else {
 356                 redisplay_tempo ();
 357         }
 358
 359         Resized (); /* EMIT_SIGNAL */
 360 }
 361
 362 void
 363 Editor::reset_scrolling_region (Gtk::Allocation* alloc)
 364 {
 365         TreeModel::Children rows = route_display_model->children();
 366         TreeModel::Children::iterator i;
 367         double pos;
 368
 369         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 370                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 371                 if (tv != 0) {
 372                         pos += tv->effective_height;
 373                         pos += track_spacing;
 374                 }
 375         }
 376
 377         double last_canvas_unit = ceil ((double) max_frames / frames_per_unit);
 378         track_canvas.set_scroll_region (0.0, 0.0, max (last_canvas_unit, canvas_width), pos);
 379
 380         // XXX what is the correct height value for the time canvas ? this overstates it
 381         time_canvas.set_scroll_region ( 0.0, 0.0, max (last_canvas_unit, canvas_width), canvas_height);
 382
 383         controls_layout.queue_resize();
 384
 385 }
 386
 387 void
 388 Editor::controls_layout_size_request (Requisition* req)
 389 {
 390         TreeModel::Children rows = route_display_model->children();
 391         TreeModel::Children::iterator i;
 392         double pos;
 393
 394         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 395                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 396                 if (tv != 0) {
 397                         pos += tv->effective_height;
 398                         pos += track_spacing;
 399                 }
 400         }
 401
 402         RefPtr<Gdk::Screen> screen = get_screen();
 403
 404         if (!screen) {
 405                 screen = Gdk::Screen::get_default();
 406         }
 407
 408         /* never let the width of the controls area shrink horizontally */
 409
 410         edit_controls_vbox.check_resize();
 411
 412         req->width = max (edit_controls_vbox.get_width(),  controls_layout.get_width());
 413         req->height = min ((gint) pos, (screen->get_height() - 400));
 414
 415         /* this one is important: it determines how big the layout thinks it really is, as
 416            opposed to what it displays on the screen
 417         */
 418
 419         controls_layout.set_size (req->width, (gint) pos);
 420 }
 421
 422 bool
 423 Editor::track_canvas_map_handler (GdkEventAny* ev)
 424 {
 425         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
 426         return false;
 427 }
 428
 429 bool
 430 Editor::time_canvas_map_handler (GdkEventAny* ev)
 431 {
 432         time_canvas.get_window()->set_cursor (*timebar_cursor);
 433         return false;
 434 }
 435
 436 void
 437 Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context,
 438                                          int x, int y,
 439                                          const SelectionData& data,
 440                                          guint info, guint time)
 441 {
 442         if (data.get_target() == "regions") {
 443                 drop_regions (context, x, y, data, info, time);
 444         } else {
 445                 drop_paths (context, x, y, data, info, time);
 446         }
 447 }
 448
 449 void
 450 Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
 451                     int x, int y,
 452                     const SelectionData& data,
 453                     guint info, guint time)
 454 {
 455         TimeAxisView* tvp;
 456         AudioTimeAxisView* tv;
 457         double cy;
 458         vector<ustring> paths;
 459         string spath;
 460         GdkEvent ev;
 461         jack_nframes_t frame;
 462
 463         if (convert_drop_to_paths (paths, context, x, y, data, info, time)) {
 464                 goto out;
 465         }
 466
 467         /* D-n-D coordinates are window-relative, so convert to "world" coordinates
 468          */
 469
 470         double wx;
 471         double wy;
 472
 473         track_canvas.window_to_world (x, y, wx, wy);
 474         wx += horizontal_adjustment.get_value();
 475         wy += vertical_adjustment.get_value();
 476
 477         ev.type = GDK_BUTTON_RELEASE;
 478         ev.button.x = wx;
 479         ev.button.y = wy;
 480
 481         frame = event_frame (&ev, 0, &cy);
 482
 483         snap_to (frame);
 484
 485         if ((tvp = trackview_by_y_position (cy)) == 0) {
 486
 487                 /* drop onto canvas background: create new tracks */
 488
 489                 jack_nframes_t pos = 0;
 490                 do_embed (paths, false, ImportAsTrack, 0, pos, false);
 491
 492         } else if ((tv = dynamic_cast<AudioTimeAxisView*>(tvp)) != 0) {
 493
 494                 /* check that its an audio track, not a bus */
 495
 496                 if (tv->get_diskstream()) {
 497                         do_embed (paths, false, ImportToTrack, tv->audio_track(), frame, true);
 498                 }
 499         }
 500
 501   out:
 502         context->drag_finish (true, false, time);
 503 }
 504
 505 void
 506 Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
 507                       int x, int y,
 508                       const SelectionData& data,
 509                       guint info, guint time)
 510 {
 511         const DnDTreeView::SerializedObjectPointers* sr = reinterpret_cast<const DnDTreeView::SerializedObjectPointers*> (data.get_data());
 512
 513         for (uint32_t i = 0; i < sr->cnt; ++i) {
 514
 515                 Region* r = reinterpret_cast<Region*> (sr->ptr[i]);
 516                 AudioRegion* ar;
 517
 518                 if ((ar = dynamic_cast<AudioRegion*>(r)) != 0) {
 519                         insert_region_list_drag (*ar, x, y);
 520                 }
 521         }
 522
 523         context->drag_finish (true, false, time);
 524 }