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 */
  19
  20 #include <libgnomecanvasmm/init.h>
  21 #include <libgnomecanvasmm/pixbuf.h>
  22 #include <jack/types.h>
  23 #include <gtkmm2ext/utils.h>
  24
  25 #include "ardour/profile.h"
  26
  27 #include "ardour_ui.h"
  28 #include "editor.h"
  29 #include "waveview.h"
  30 #include "simplerect.h"
  31 #include "simpleline.h"
  32 #include "imageframe.h"
  33 #include "waveview_p.h"
  34 #include "simplerect_p.h"
  35 #include "simpleline_p.h"
  36 #include "imageframe_p.h"
  37 #include "canvas_impl.h"
  38 #include "editing.h"
  39 #include "rgb_macros.h"
  40 #include "utils.h"
  41 #include "audio_time_axis.h"
  42 #include "editor_drag.h"
  43 #include "region_view.h"
  44
  45 #include "i18n.h"
  46
  47 using namespace std;
  48 using namespace sigc;
  49 using namespace ARDOUR;
  50 using namespace PBD;
  51 using namespace Gtk;
  52 using namespace Glib;
  53 using namespace Gtkmm2ext;
  54 using namespace Editing;
  55
  56 /* XXX this is a hack. it ought to be the maximum value of an nframes64_t */
  57
  58 const double max_canvas_coordinate = (double) JACK_MAX_FRAMES;
  59
  60 extern "C"
  61 {
  62
  63 GType gnome_canvas_simpleline_get_type(void);
  64 GType gnome_canvas_simplerect_get_type(void);
  65 GType gnome_canvas_waveview_get_type(void);
  66 GType gnome_canvas_imageframe_get_type(void);
  67
  68 }
  69
  70 static void ardour_canvas_type_init()
  71 {
  72         // Map gtypes to gtkmm wrapper-creation functions:
  73
  74         Glib::wrap_register(gnome_canvas_simpleline_get_type(), &Gnome::Canvas::SimpleLine_Class::wrap_new);
  75         Glib::wrap_register(gnome_canvas_simplerect_get_type(), &Gnome::Canvas::SimpleRect_Class::wrap_new);
  76         Glib::wrap_register(gnome_canvas_waveview_get_type(), &Gnome::Canvas::WaveView_Class::wrap_new);
  77         // Glib::wrap_register(gnome_canvas_imageframe_get_type(), &Gnome::Canvas::ImageFrame_Class::wrap_new);
  78
  79         // Register the gtkmm gtypes:
  80
  81         (void) Gnome::Canvas::WaveView::get_type();
  82         (void) Gnome::Canvas::SimpleLine::get_type();
  83         (void) Gnome::Canvas::SimpleRect::get_type();
  84         (void) Gnome::Canvas::ImageFrame::get_type();
  85 }
  86
  87 void
  88 Editor::initialize_canvas ()
  89 {
  90         if (getenv ("ARDOUR_NON_AA_CANVAS")) {
  91                 track_canvas = new ArdourCanvas::Canvas ();
  92         } else {
  93                 track_canvas = new ArdourCanvas::CanvasAA ();
  94         }
  95
  96         ArdourCanvas::init ();
  97         ardour_canvas_type_init ();
  98
  99         /* don't try to center the canvas */
 100
 101         track_canvas->set_center_scroll_region (false);
 102         track_canvas->set_dither (Gdk::RGB_DITHER_NONE);
 103
 104         Glib::RefPtr<Gdk::Screen> screen = get_screen();
 105
 106         if (!screen) {
 107                 screen = Gdk::Screen::get_default();
 108         }
 109         physical_screen_width = screen->get_width ();
 110         physical_screen_height = screen->get_height ();
 111
 112         /* stuff for the verbose canvas cursor */
 113
 114         Pango::FontDescription* font = get_font_for_style (N_("VerboseCanvasCursor"));
 115
 116         verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas->root());
 117         verbose_canvas_cursor->property_font_desc() = *font;
 118         verbose_canvas_cursor->property_anchor() = ANCHOR_NW;
 119
 120         delete font;
 121
 122         verbose_cursor_visible = false;
 123
 124         /* on the bottom, an image */
 125
 126         if (Profile->get_sae()) {
 127                 Image img (::get_icon (X_("saelogo")));
 128                 logo_item = new ArdourCanvas::Pixbuf (*track_canvas->root(), 0.0, 0.0, img.get_pixbuf());
 129                 // logo_item->property_height_in_pixels() = true;
 130                 // logo_item->property_width_in_pixels() = true;
 131                 // logo_item->property_height_set() = true;
 132                 // logo_item->property_width_set() = true;
 133                 logo_item->show ();
 134         }
 135
 136         /* a group to hold time (measure) lines */
 137         time_line_group = new ArdourCanvas::Group (*track_canvas->root());
 138
 139 #ifdef GTKOSX
 140         /*XXX please don't laugh. this actually improves canvas performance on osx */
 141         bogus_background_rect =  new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, max_canvas_coordinate/3, physical_screen_height);
 142         bogus_background_rect->property_outline_pixels() = 0;
 143 #endif
 144         transport_loop_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, physical_screen_height);
 145         transport_loop_range_rect->property_outline_pixels() = 1;
 146         transport_loop_range_rect->hide();
 147
 148         transport_punch_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, physical_screen_height);
 149         transport_punch_range_rect->property_outline_pixels() = 0;
 150         transport_punch_range_rect->hide();
 151
 152         _background_group = new ArdourCanvas::Group (*track_canvas->root());
 153         _master_group = new ArdourCanvas::Group (*track_canvas->root());
 154
 155         _trackview_group = new ArdourCanvas::Group (*_master_group);
 156         _region_motion_group = new ArdourCanvas::Group (*_trackview_group);
 157
 158         meter_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 159         if (Profile->get_sae()) {
 160                 meter_bar = new ArdourCanvas::SimpleRect (*meter_bar_group, 0.0, 0.0, physical_screen_width, timebar_height - 1);
 161                 meter_bar->property_outline_pixels() = 1;
 162         } else {
 163                 meter_bar = new ArdourCanvas::SimpleRect (*meter_bar_group, 0.0, 0.0, physical_screen_width, timebar_height);
 164                 meter_bar->property_outline_pixels() = 0;
 165         }
 166         meter_bar->property_outline_what() = (0x1 | 0x8);
 167
 168         tempo_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 169         if (Profile->get_sae()) {
 170                 tempo_bar = new ArdourCanvas::SimpleRect (*tempo_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height - 1));
 171                 tempo_bar->property_outline_pixels() = 1;
 172         } else {
 173                 tempo_bar = new ArdourCanvas::SimpleRect (*tempo_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height));
 174                 tempo_bar->property_outline_pixels() = 0;
 175         }
 176         tempo_bar->property_outline_what() = (0x1 | 0x8);
 177
 178         range_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 179         if (Profile->get_sae()) {
 180                 range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height - 1));
 181                 range_marker_bar->property_outline_pixels() = 1;
 182         } else {
 183                 range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height));
 184                 range_marker_bar->property_outline_pixels() = 0;
 185         }
 186         range_marker_bar->property_outline_what() = (0x1 | 0x8);
 187
 188         transport_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 189         if (Profile->get_sae()) {
 190                 transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_bar_group, 0.0, 0.0,  physical_screen_width, (timebar_height - 1));
 191                 transport_marker_bar->property_outline_pixels() = 1;
 192         } else {
 193                 transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_bar_group, 0.0, 0.0,  physical_screen_width, (timebar_height));
 194                 transport_marker_bar->property_outline_pixels() = 0;
 195         }
 196         transport_marker_bar->property_outline_what() = (0x1 | 0x8);
 197
 198         marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 199         if (Profile->get_sae()) {
 200                 marker_bar = new ArdourCanvas::SimpleRect (*marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height - 1));
 201                 marker_bar->property_outline_pixels() = 1;
 202         } else {
 203                 marker_bar = new ArdourCanvas::SimpleRect (*marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height));
 204                 marker_bar->property_outline_pixels() = 0;
 205         }
 206         marker_bar->property_outline_what() = (0x1 | 0x8);
 207
 208         cd_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 209         if (Profile->get_sae()) {
 210                 cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height - 1));
 211                 cd_marker_bar->property_outline_pixels() = 1;
 212         } else {
 213                 cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height));
 214                 cd_marker_bar->property_outline_pixels() = 0;
 215         }
 216         cd_marker_bar->property_outline_what() = (0x1 | 0x8);
 217
 218         timebar_group =  new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
 219         cursor_group = new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
 220
 221         meter_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 5.0);
 222         tempo_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 4.0);
 223         range_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 3.0);
 224         transport_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 2.0);
 225         marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height);
 226         cd_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, 0.0);
 227
 228         cd_marker_bar_drag_rect = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, 100, timebar_height);
 229         cd_marker_bar_drag_rect->property_outline_pixels() = 0;
 230         cd_marker_bar_drag_rect->hide ();
 231
 232         range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, 100, timebar_height);
 233         range_bar_drag_rect->property_outline_pixels() = 0;
 234         range_bar_drag_rect->hide ();
 235
 236         transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, 100, timebar_height);
 237         transport_bar_drag_rect->property_outline_pixels() = 0;
 238         transport_bar_drag_rect->hide ();
 239
 240         transport_punchin_line = new ArdourCanvas::SimpleLine (*_master_group);
 241         transport_punchin_line->property_x1() = 0.0;
 242         transport_punchin_line->property_y1() = 0.0;
 243         transport_punchin_line->property_x2() = 0.0;
 244         transport_punchin_line->property_y2() = physical_screen_height;
 245         transport_punchin_line->hide ();
 246
 247         transport_punchout_line  = new ArdourCanvas::SimpleLine (*_master_group);
 248         transport_punchout_line->property_x1() = 0.0;
 249         transport_punchout_line->property_y1() = 0.0;
 250         transport_punchout_line->property_x2() = 0.0;
 251         transport_punchout_line->property_y2() = physical_screen_height;
 252         transport_punchout_line->hide();
 253
 254         // used to show zoom mode active zooming
 255         zoom_rect = new ArdourCanvas::SimpleRect (*_master_group, 0.0, 0.0, 0.0, 0.0);
 256         zoom_rect->property_outline_pixels() = 1;
 257         zoom_rect->hide();
 258
 259         zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
 260
 261         // used as rubberband rect
 262         rubberband_rect = new ArdourCanvas::SimpleRect (*_trackview_group, 0.0, 0.0, 0.0, 0.0);
 263
 264         rubberband_rect->property_outline_pixels() = 1;
 265         rubberband_rect->hide();
 266
 267         tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
 268         meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
 269         marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
 270         cd_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_cd_marker_bar_event), cd_marker_bar));
 271         range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
 272         transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
 273
 274         playhead_cursor = new EditorCursor (*this, &Editor::canvas_playhead_cursor_event);
 275
 276         if (logo_item) {
 277                 logo_item->lower_to_bottom ();
 278         }
 279         /* need to handle 4 specific types of events as catch-alls */
 280
 281         track_canvas->signal_scroll_event().connect (mem_fun (*this, &Editor::track_canvas_scroll_event));
 282         track_canvas->signal_motion_notify_event().connect (mem_fun (*this, &Editor::track_canvas_motion_notify_event));
 283         track_canvas->signal_button_press_event().connect (mem_fun (*this, &Editor::track_canvas_button_press_event));
 284         track_canvas->signal_button_release_event().connect (mem_fun (*this, &Editor::track_canvas_button_release_event));
 285         track_canvas->signal_drag_motion().connect (mem_fun (*this, &Editor::track_canvas_drag_motion));
 286
 287         track_canvas->set_name ("EditorMainCanvas");
 288         track_canvas->add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
 289         track_canvas->signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
 290         track_canvas->signal_enter_notify_event().connect (mem_fun(*this, &Editor::entered_track_canvas));
 291         track_canvas->set_flags (CAN_FOCUS);
 292
 293         /* set up drag-n-drop */
 294
 295         vector<TargetEntry> target_table;
 296
 297         // Drag-N-Drop from the region list can generate this target
 298         target_table.push_back (TargetEntry ("regions"));
 299
 300         target_table.push_back (TargetEntry ("text/plain"));
 301         target_table.push_back (TargetEntry ("text/uri-list"));
 302         target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 303
 304         track_canvas->drag_dest_set (target_table);
 305         track_canvas->signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
 306
 307         track_canvas->signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));
 308
 309         ColorsChanged.connect (mem_fun (*this, &Editor::color_handler));
 310         color_handler();
 311
 312 }
 313
 314 void
 315 Editor::track_canvas_allocate (Gtk::Allocation alloc)
 316 {
 317         canvas_allocation = alloc;
 318         track_canvas_size_allocated ();
 319 }
 320
 321 bool
 322 Editor::track_canvas_size_allocated ()
 323 {
 324         bool height_changed = canvas_height != canvas_allocation.get_height();
 325
 326         canvas_width = canvas_allocation.get_width();
 327         canvas_height = canvas_allocation.get_height();
 328
 329         if (session) {
 330                 TrackViewList::iterator i;
 331                 double height = 0;
 332
 333                 for (i = track_views.begin(); i != track_views.end(); ++i) {
 334                         height += (*i)->effective_height ();
 335                         (*i)->clip_to_viewport ();
 336                 }
 337
 338                 full_canvas_height = height + canvas_timebars_vsize;
 339         }
 340
 341         if (height_changed) {
 342                 if (playhead_cursor) {
 343                         playhead_cursor->set_length (canvas_height);
 344                 }
 345
 346                 for (MarkerSelection::iterator x = selection->markers.begin(); x != selection->markers.end(); ++x) {
 347                         (*x)->set_line_vpos (0, canvas_height);
 348                 }
 349
 350                 vertical_adjustment.set_page_size (canvas_height);
 351                 last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 352                 if ((vertical_adjustment.get_value() + canvas_height) >= vertical_adjustment.get_upper()) {
 353                         /*
 354                            We're increasing the size of the canvas while the bottom is visible.
 355                            We scroll down to keep in step with the controls layout.
 356                         */
 357                         vertical_adjustment.set_value (full_canvas_height - canvas_height);
 358                 }
 359         }
 360
 361         handle_new_duration ();
 362         reset_hscrollbar_stepping ();
 363         update_fixed_rulers();
 364         redisplay_tempo (false);
 365
 366         Resized (); /* EMIT_SIGNAL */
 367
 368         return false;
 369 }
 370
 371 void
 372 Editor::controls_layout_size_request (Requisition* req)
 373 {
 374         TreeModel::Children rows = route_display_model->children();
 375         TreeModel::Children::iterator i;
 376         double pos;
 377         bool changed = false;
 378
 379         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 380                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 381                 if (tv != 0) {
 382                         pos += tv->effective_height ();
 383                         tv->clip_to_viewport ();
 384                 }
 385         }
 386
 387         gint height = min ((gint) pos, (gint) (physical_screen_height - 600));
 388         gint width = max (edit_controls_vbox.get_width(),  controls_layout.get_width());
 389
 390         /* don't get too big. the fudge factors here are just guesses */
 391
 392         width =  min (width, (gint) (physical_screen_width - 300));
 393
 394         if ((req->width != width) || (req->height != height)) {
 395                 changed = true;
 396                 controls_layout_size_request_connection.disconnect ();
 397         }
 398
 399         if (req->width != width) {
 400                 gint vbox_width = edit_controls_vbox.get_width();
 401                 req->width = width;
 402
 403                 /* this one is important: it determines how big the layout thinks it really is, as
 404                    opposed to what it displays on the screen
 405                 */
 406                 controls_layout.property_width () = vbox_width;
 407                 controls_layout.property_width_request () = vbox_width;
 408
 409                 time_button_event_box.property_width_request () = vbox_width;
 410                 zoom_box.property_width_request () = vbox_width;
 411         }
 412
 413         if (req->height != height) {
 414                 req->height = height;
 415                 controls_layout.property_height () = (guint) floor (pos);
 416                 controls_layout.property_height_request () = height;
 417         }
 418
 419         if (changed) {
 420                 controls_layout_size_request_connection = controls_layout.signal_size_request().connect (mem_fun (*this, &Editor::controls_layout_size_request));
 421         }
 422         //cerr << "sizes = " << req->width << " " << edit_controls_vbox.get_width() << " " << controls_layout.get_width() << " " << zoom_box.get_width() << " " << time_button_frame.get_width() << endl;//DEBUG
 423 }
 424
 425 bool
 426 Editor::track_canvas_map_handler (GdkEventAny* ev)
 427 {
 428         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 429         return false;
 430 }
 431
 432 void
 433 Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context,
 434                                          int x, int y,
 435                                          const SelectionData& data,
 436                                          guint info, guint time)
 437 {
 438         if (data.get_target() == "regions") {
 439                 drop_regions (context, x, y, data, info, time);
 440         } else {
 441                 drop_paths (context, x, y, data, info, time);
 442         }
 443 }
 444
 445 bool
 446 Editor::idle_drop_paths (vector<ustring> paths, nframes64_t frame, double ypos)
 447 {
 448         drop_paths_part_two (paths, frame, ypos);
 449         return false;
 450 }
 451
 452 void
 453 Editor::drop_paths_part_two (const vector<ustring>& paths, nframes64_t frame, double ypos)
 454 {
 455         RouteTimeAxisView* tv;
 456
 457         std::pair<TimeAxisView*, int> const tvp = trackview_by_y_position (ypos);
 458         if (tvp.first == 0) {
 459
 460                 /* drop onto canvas background: create new tracks */
 461
 462                 frame = 0;
 463
 464                 if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
 465                         do_import (paths, Editing::ImportDistinctFiles, Editing::ImportAsTrack, SrcBest, frame);
 466                 } else {
 467                         do_embed (paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
 468                 }
 469
 470         } else if ((tv = dynamic_cast<RouteTimeAxisView*> (tvp.first)) != 0) {
 471
 472                 /* check that its an audio track, not a bus */
 473
 474                 if (tv->get_diskstream()) {
 475                         /* select the track, then embed/import */
 476                         selection->set (tv);
 477
 478                         if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
 479                                 do_import (paths, Editing::ImportSerializeFiles, Editing::ImportToTrack, SrcBest, frame);
 480                         } else {
 481                                 do_embed (paths, Editing::ImportSerializeFiles, ImportToTrack, frame);
 482                         }
 483                 }
 484         }
 485 }
 486
 487 void
 488 Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
 489                     int x, int y,
 490                     const SelectionData& data,
 491                     guint info, guint time)
 492 {
 493         vector<ustring> paths;
 494         GdkEvent ev;
 495         nframes64_t frame;
 496         double wx;
 497         double wy;
 498         double cy;
 499
 500         if (convert_drop_to_paths (paths, context, x, y, data, info, time) == 0) {
 501
 502                 /* D-n-D coordinates are window-relative, so convert to "world" coordinates
 503                  */
 504
 505                 track_canvas->window_to_world (x, y, wx, wy);
 506
 507                 ev.type = GDK_BUTTON_RELEASE;
 508                 ev.button.x = wx;
 509                 ev.button.y = wy;
 510
 511                 frame = event_frame (&ev, 0, &cy);
 512
 513                 snap_to (frame);
 514
 515 #ifdef GTKOSX
 516                 /* We are not allowed to call recursive main event loops from within
 517                    the main event loop with GTK/Quartz. Since import/embed wants
 518                    to push up a progress dialog, defer all this till we go idle.
 519                 */
 520                 Glib::signal_idle().connect (bind (mem_fun (*this, &Editor::idle_drop_paths), paths, frame, cy));
 521 #else
 522                 drop_paths_part_two (paths, frame, cy);
 523 #endif
 524         }
 525
 526         context->drag_finish (true, false, time);
 527 }
 528
 529 void
 530 Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
 531                       int x, int y,
 532                       const SelectionData& data,
 533                       guint info, guint time)
 534 {
 535         assert (_drag);
 536         _drag->end_grab (0);
 537         delete _drag;
 538         _drag = 0;
 539 }
 540
 541 void
 542 Editor::maybe_autoscroll (GdkEventMotion* event)
 543 {
 544         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 545         nframes64_t frame = _drag->current_pointer_frame();
 546         bool startit = false;
 547
 548         autoscroll_y = 0;
 549         autoscroll_x = 0;
 550         if (event->y < canvas_timebars_vsize) {
 551                 autoscroll_y = -1;
 552                 startit = true;
 553         } else if (event->y > canvas_height) {
 554                 autoscroll_y = 1;
 555                 startit = true;
 556         }
 557
 558         if (frame > rightmost_frame) {
 559
 560                 if (rightmost_frame < max_frames) {
 561                         autoscroll_x = 1;
 562                         startit = true;
 563                 }
 564
 565         } else if (frame < leftmost_frame) {
 566                 if (leftmost_frame > 0) {
 567                         autoscroll_x = -1;
 568                         startit = true;
 569                 }
 570
 571         }
 572
 573         if (!allow_vertical_scroll) {
 574                 autoscroll_y = 0;
 575         }
 576
 577         if ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0)) {
 578                 stop_canvas_autoscroll ();
 579         }
 580
 581         if (startit && autoscroll_timeout_tag < 0) {
 582                 start_canvas_autoscroll (autoscroll_x, autoscroll_y);
 583         }
 584
 585         last_autoscroll_x = autoscroll_x;
 586         last_autoscroll_y = autoscroll_y;
 587 }
 588
 589 gint
 590 Editor::_autoscroll_canvas (void *arg)
 591 {
 592         return ((Editor *) arg)->autoscroll_canvas ();
 593 }
 594
 595 bool
 596 Editor::autoscroll_canvas ()
 597 {
 598         nframes64_t new_frame;
 599         nframes64_t limit = max_frames - current_page_frames();
 600         GdkEventMotion ev;
 601         double new_pixel;
 602         double target_pixel;
 603
 604         if (autoscroll_x_distance != 0) {
 605                 if (autoscroll_x > 0) {
 606                         autoscroll_x_distance = (unit_to_frame (_drag->current_pointer_x()) - (leftmost_frame + current_page_frames())) / 3;
 607                 } else if (autoscroll_x < 0) {
 608                         autoscroll_x_distance = (leftmost_frame - unit_to_frame (_drag->current_pointer_x())) / 3;
 609
 610                 }
 611         }
 612
 613         if (autoscroll_y_distance != 0) {
 614                 if (autoscroll_y > 0) {
 615                         autoscroll_y_distance = (_drag->current_pointer_y() - (get_trackview_group_vertical_offset() + canvas_height)) / 3;
 616                 } else if (autoscroll_y < 0) {
 617
 618                         autoscroll_y_distance = (vertical_adjustment.get_value () - _drag->current_pointer_y()) / 3;
 619                 }
 620         }
 621
 622         if (autoscroll_x < 0) {
 623                 if (leftmost_frame < autoscroll_x_distance) {
 624                         new_frame = 0;
 625                 } else {
 626                         new_frame = leftmost_frame - autoscroll_x_distance;
 627                 }
 628         } else if (autoscroll_x > 0) {
 629                 if (leftmost_frame > limit - autoscroll_x_distance) {
 630                         new_frame = limit;
 631                 } else {
 632                         new_frame = leftmost_frame + autoscroll_x_distance;
 633                 }
 634         } else {
 635                 new_frame = leftmost_frame;
 636         }
 637
 638         double vertical_pos = vertical_adjustment.get_value();
 639
 640         if (autoscroll_y < 0) {
 641
 642                 if (vertical_pos < autoscroll_y_distance) {
 643                         new_pixel = 0;
 644                 } else {
 645                         new_pixel = vertical_pos - autoscroll_y_distance;
 646                 }
 647
 648                 target_pixel = _drag->current_pointer_y() - autoscroll_y_distance;
 649                 target_pixel = max (target_pixel, 0.0);
 650
 651         } else if (autoscroll_y > 0) {
 652
 653                 double top_of_bottom_of_canvas = full_canvas_height - canvas_height;
 654
 655                 if (vertical_pos > full_canvas_height - autoscroll_y_distance) {
 656                         new_pixel = full_canvas_height;
 657                 } else {
 658                         new_pixel = vertical_pos + autoscroll_y_distance;
 659                 }
 660
 661                 new_pixel = min (top_of_bottom_of_canvas, new_pixel);
 662
 663                 target_pixel = _drag->current_pointer_y() + autoscroll_y_distance;
 664
 665                 /* don't move to the full canvas height because the item will be invisible
 666                    (its top edge will line up with the bottom of the visible canvas.
 667                 */
 668
 669                 target_pixel = min (target_pixel, full_canvas_height - 10);
 670
 671         } else {
 672                 target_pixel = _drag->current_pointer_y();
 673                 new_pixel = vertical_pos;
 674         }
 675
 676         if ((new_frame == 0 || new_frame == limit) && (new_pixel == 0 || new_pixel == DBL_MAX)) {
 677                 /* we are done */
 678                 return false;
 679         }
 680
 681         if (new_frame != leftmost_frame) {
 682                 reset_x_origin (new_frame);
 683         }
 684
 685         vertical_adjustment.set_value (new_pixel);
 686
 687         /* fake an event. */
 688
 689         Glib::RefPtr<Gdk::Window> canvas_window = const_cast<Editor*>(this)->track_canvas->get_window();
 690         gint x, y;
 691         Gdk::ModifierType mask;
 692         canvas_window->get_pointer (x, y, mask);
 693         ev.type = GDK_MOTION_NOTIFY;
 694         ev.state &= Gdk::BUTTON1_MASK;
 695         ev.x = x;
 696         ev.y = y;
 697
 698         motion_handler (_drag->item(), (GdkEvent*) &ev, true);
 699
 700         autoscroll_cnt++;
 701
 702         if (autoscroll_cnt == 1) {
 703
 704                 /* connect the timeout so that we get called repeatedly */
 705
 706                 autoscroll_timeout_tag = g_idle_add ( _autoscroll_canvas, this);
 707                 return false;
 708
 709         }
 710
 711         return true;
 712 }
 713
 714 void
 715 Editor::start_canvas_autoscroll (int dx, int dy)
 716 {
 717         if (!session || autoscroll_active) {
 718                 return;
 719         }
 720
 721         stop_canvas_autoscroll ();
 722
 723         autoscroll_active = true;
 724         autoscroll_x = dx;
 725         autoscroll_y = dy;
 726         autoscroll_x_distance = (nframes64_t) floor (current_page_frames()/50.0);
 727         autoscroll_y_distance = fabs (dy * 5); /* pixels */
 728         autoscroll_cnt = 0;
 729
 730         /* do it right now, which will start the repeated callbacks */
 731
 732         autoscroll_canvas ();
 733 }
 734
 735 void
 736 Editor::stop_canvas_autoscroll ()
 737 {
 738
 739         if (autoscroll_timeout_tag >= 0) {
 740                 g_source_remove (autoscroll_timeout_tag);
 741                 autoscroll_timeout_tag = -1;
 742         }
 743
 744         autoscroll_active = false;
 745 }
 746
 747 bool
 748 Editor::left_track_canvas (GdkEventCrossing *ev)
 749 {
 750         set_entered_track (0);
 751         set_entered_regionview (0);
 752         reset_canvas_action_sensitivity (false);
 753         return false;
 754 }
 755
 756 bool
 757 Editor::entered_track_canvas (GdkEventCrossing *ev)
 758 {
 759         reset_canvas_action_sensitivity (true);
 760         return FALSE;
 761 }
 762
 763 void
 764 Editor::tie_vertical_scrolling ()
 765 {
 766         scroll_canvas_vertically ();
 767
 768         /* this will do an immediate redraw */
 769
 770         controls_layout.get_vadjustment()->set_value (vertical_adjustment.get_value());
 771 }
 772
 773 void
 774 Editor::scroll_canvas_horizontally ()
 775 {
 776         nframes64_t time_origin = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
 777
 778         /* horizontal scrolling only */
 779         double x_delta;
 780
 781         x_delta = (leftmost_frame - time_origin) / frames_per_unit;
 782
 783         _master_group->move (x_delta, 0);
 784         timebar_group->move (x_delta, 0);
 785         time_line_group->move (x_delta, 0);
 786         cursor_group->move (x_delta, 0);
 787
 788         leftmost_frame = time_origin;
 789
 790         update_fixed_rulers ();
 791         redisplay_tempo (true);
 792
 793 #ifndef GTKOSX
 794         if (!autoscroll_active) {
 795                 /* force rulers and canvas to move in lock step */
 796                 while (gtk_events_pending ()) {
 797                         gtk_main_iteration ();
 798                 }
 799         }
 800 #endif
 801
 802 }
 803
 804 void
 805 Editor::scroll_canvas_vertically ()
 806 {
 807         /* vertical scrolling only */
 808
 809         double y_delta;
 810
 811         y_delta = last_trackview_group_vertical_offset - get_trackview_group_vertical_offset ();
 812         _trackview_group->move (0, y_delta);
 813         _background_group->move (0, y_delta);
 814
 815         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 816                 (*i)->clip_to_viewport ();
 817         }
 818         last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 819         /* required to keep the controls_layout in lock step with the canvas group */
 820         track_canvas->update_now ();
 821 }
 822
 823 void
 824 Editor::color_handler()
 825 {
 826         playhead_cursor->canvas_item.property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_PlayHead.get();
 827         verbose_canvas_cursor->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_VerboseCanvasCursor.get();
 828
 829         meter_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MeterBar.get();
 830         meter_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 831
 832         tempo_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TempoBar.get();
 833         tempo_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 834
 835         marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBar.get();
 836         marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 837
 838         cd_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CDMarkerBar.get();
 839         cd_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 840
 841         range_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeMarkerBar.get();
 842         range_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 843
 844         transport_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportMarkerBar.get();
 845         transport_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 846
 847         cd_marker_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 848         cd_marker_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 849
 850         range_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 851         range_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 852
 853         transport_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 854         transport_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 855
 856         transport_loop_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 857         transport_loop_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 858
 859         transport_punch_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 860         transport_punch_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 861
 862         transport_punchin_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 863         transport_punchout_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 864
 865         zoom_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 866         zoom_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 867
 868         rubberband_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 869         rubberband_rect->property_fill_color_rgba() = (guint32) ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 870
 871         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 872         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 873         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 874         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 875         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 876
 877         refresh_location_display ();
 878 /*
 879         redisplay_tempo (true);
 880
 881         if (session)
 882                 session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
 883 */
 884 }
 885
 886 void
 887 Editor::flush_canvas ()
 888 {
 889         if (is_mapped()) {
 890                 track_canvas->update_now ();
 891                 // gdk_window_process_updates (GTK_LAYOUT(track_canvas->gobj())->bin_window, true);
 892         }
 893 }
 894