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 <jack/types.h>
  22 #include <gtkmm2ext/utils.h>
  23
  24 #include <ardour/audioregion.h>
  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 "waveview_p.h"
  33 #include "simplerect_p.h"
  34 #include "simpleline_p.h"
  35 #include "canvas_impl.h"
  36 #include "editing.h"
  37 #include "rgb_macros.h"
  38 #include "utils.h"
  39 #include "time_axis_view.h"
  40 #include "audio_time_axis.h"
  41
  42 #ifdef WITH_CMT
  43 #include "imageframe.h"
  44 #include "imageframe_p.h"
  45 #endif
  46
  47 #include "i18n.h"
  48
  49 using namespace std;
  50 using namespace sigc;
  51 using namespace ARDOUR;
  52 using namespace PBD;
  53 using namespace Gtk;
  54 using namespace Glib;
  55 using namespace Gtkmm2ext;
  56 using namespace Editing;
  57
  58 /* XXX this is a hack. it ought to be the maximum value of an nframes_t */
  59
  60 const double max_canvas_coordinate = (double) JACK_MAX_FRAMES;
  61
  62 extern "C"
  63 {
  64
  65 GType gnome_canvas_simpleline_get_type(void);
  66 GType gnome_canvas_simplerect_get_type(void);
  67 GType gnome_canvas_waveview_get_type(void);
  68
  69 #ifdef WITH_CMT
  70 GType gnome_canvas_imageframe_get_type(void);
  71 #endif
  72
  73 }
  74
  75 static void ardour_canvas_type_init()
  76 {
  77         // Map gtypes to gtkmm wrapper-creation functions:
  78
  79         Glib::wrap_register(gnome_canvas_simpleline_get_type(), &Gnome::Canvas::SimpleLine_Class::wrap_new);
  80         Glib::wrap_register(gnome_canvas_simplerect_get_type(), &Gnome::Canvas::SimpleRect_Class::wrap_new);
  81         Glib::wrap_register(gnome_canvas_waveview_get_type(), &Gnome::Canvas::WaveView_Class::wrap_new);
  82
  83 #ifdef WITH_CMT
  84         Glib::wrap_register(gnome_canvas_imageframe_get_type(), &Gnome::Canvas::ImageFrame_Class::wrap_new);
  85 #endif
  86
  87         // Register the gtkmm gtypes:
  88
  89         (void) Gnome::Canvas::WaveView::get_type();
  90         (void) Gnome::Canvas::SimpleLine::get_type();
  91         (void) Gnome::Canvas::SimpleRect::get_type();
  92
  93 #ifdef WITH_CMT
  94         (void) Gnome::Canvas::ImageFrame::get_type();
  95 #endif
  96 }
  97
  98 void
  99 Editor::initialize_canvas ()
 100 {
 101         ArdourCanvas::init ();
 102         ardour_canvas_type_init ();
 103
 104         /* don't try to center the canvas */
 105
 106         track_canvas.set_center_scroll_region (false);
 107         track_canvas.set_dither         (Gdk::RGB_DITHER_NONE);
 108
 109         /* need to handle 4 specific types of events as catch-alls */
 110
 111         track_canvas.signal_scroll_event().connect (mem_fun (*this, &Editor::track_canvas_scroll_event));
 112         track_canvas.signal_motion_notify_event().connect (mem_fun (*this, &Editor::track_canvas_motion_notify_event));
 113         track_canvas.signal_button_press_event().connect (mem_fun (*this, &Editor::track_canvas_button_press_event));
 114         track_canvas.signal_button_release_event().connect (mem_fun (*this, &Editor::track_canvas_button_release_event));
 115
 116         /* just scroll stuff for the timecanvas */
 117         time_canvas.signal_scroll_event().connect (mem_fun (*this, &Editor::time_canvas_scroll_event));
 118
 119         track_canvas.set_name ("EditorMainCanvas");
 120         track_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
 121         track_canvas.signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
 122         track_canvas.set_flags (CAN_FOCUS);
 123
 124         /* set up drag-n-drop */
 125
 126         vector<TargetEntry> target_table;
 127
 128         // Drag-N-Drop from the region list can generate this target
 129         target_table.push_back (TargetEntry ("regions"));
 130
 131         target_table.push_back (TargetEntry ("text/plain"));
 132         target_table.push_back (TargetEntry ("text/uri-list"));
 133         target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 134
 135         track_canvas.drag_dest_set (target_table);
 136         track_canvas.signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
 137
 138         /* stuff for the verbose canvas cursor */
 139
 140         Pango::FontDescription* font = get_font_for_style (N_("VerboseCanvasCursor"));
 141
 142         verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas.root());
 143         verbose_canvas_cursor->property_font_desc() = *font;
 144         verbose_canvas_cursor->property_anchor() = ANCHOR_NW;
 145
 146         delete font;
 147
 148         verbose_cursor_visible = false;
 149
 150         if (Profile->get_sae()) {
 151                 Image img (::get_icon (X_("saelogo")));
 152                 logo_item = new ArdourCanvas::Pixbuf (*track_canvas.root(), 0.0, 0.0, img.get_pixbuf());
 153                 // logo_item->property_height_in_pixels() = true;
 154                 // logo_item->property_width_in_pixels() = true;
 155                 // logo_item->property_height_set() = true;
 156                 // logo_item->property_width_set() = true;
 157                 logo_item->show ();
 158         }
 159
 160         /* a group to hold time (measure) lines */
 161
 162         time_line_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
 163         tempo_lines = new TempoLines(track_canvas, time_line_group);
 164         cursor_group = new ArdourCanvas::Group (*track_canvas.root(), 0.0, 0.0);
 165         time_canvas.set_name ("EditorTimeCanvas");
 166         time_canvas.add_events (Gdk::POINTER_MOTION_HINT_MASK);
 167         time_canvas.set_flags (CAN_FOCUS);
 168         time_canvas.set_center_scroll_region (false);
 169         time_canvas.set_dither          (Gdk::RGB_DITHER_NONE);
 170
 171         marker_time_line_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
 172         marker_tempo_lines = new TempoLines(time_canvas, marker_time_line_group);
 173
 174         meter_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, 0.0);
 175         tempo_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height);
 176         range_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 2.0);
 177         transport_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 3.0);
 178         marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 4.0);
 179         cd_marker_group = new ArdourCanvas::Group (*time_canvas.root(), 0.0, timebar_height * 5.0);
 180
 181         tempo_bar = new ArdourCanvas::SimpleRect (*tempo_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 182         tempo_bar->property_outline_what() = (0x1 | 0x8);
 183         tempo_bar->property_outline_pixels() = 1;
 184
 185         meter_bar = new ArdourCanvas::SimpleRect (*meter_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 186         meter_bar->property_outline_what() = (0x1 | 0x8);
 187         meter_bar->property_outline_pixels() = 1;
 188
 189         marker_bar = new ArdourCanvas::SimpleRect (*marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 190         marker_bar->property_outline_what() = (0x1 | 0x8);
 191         marker_bar->property_outline_pixels() = 1;
 192
 193         cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 194         cd_marker_bar->property_outline_what() = (0x1 | 0x8);
 195         cd_marker_bar->property_outline_pixels() = 1;
 196
 197         range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 198         range_marker_bar->property_outline_what() = (0x1 | 0x8);
 199         range_marker_bar->property_outline_pixels() = 1;
 200
 201         transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 202         transport_marker_bar->property_outline_what() = (0x1 | 0x8);
 203         transport_marker_bar->property_outline_pixels() = 1;
 204
 205         range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 206         range_bar_drag_rect->property_outline_pixels() = 0;
 207         range_bar_drag_rect->hide ();
 208
 209         transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 210         transport_bar_drag_rect->property_outline_pixels() = 0;
 211         transport_bar_drag_rect->hide ();
 212
 213         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
 214         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
 215
 216         marker_drag_line = new ArdourCanvas::Line (*track_canvas.root());
 217         marker_drag_line->property_width_pixels() = 1;
 218         marker_drag_line->property_points() = marker_drag_line_points;
 219         marker_drag_line->hide();
 220
 221         range_marker_drag_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
 222         range_marker_drag_rect->hide ();
 223
 224         transport_loop_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
 225         transport_loop_range_rect->property_outline_pixels() = 1;
 226         transport_loop_range_rect->hide();
 227
 228         transport_punch_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
 229         transport_punch_range_rect->property_outline_pixels() = 0;
 230         transport_punch_range_rect->hide();
 231
 232         transport_loop_range_rect->lower_to_bottom (); // loop on the bottom
 233
 234         transport_punchin_line = new ArdourCanvas::SimpleLine (*time_line_group);
 235         transport_punchin_line->property_x1() = 0.0;
 236         transport_punchin_line->property_y1() = 0.0;
 237         transport_punchin_line->property_x2() = 0.0;
 238         transport_punchin_line->property_y2() = 0.0;
 239         transport_punchin_line->hide ();
 240
 241         transport_punchout_line  = new ArdourCanvas::SimpleLine (*time_line_group);
 242         transport_punchout_line->property_x1() = 0.0;
 243         transport_punchout_line->property_y1() = 0.0;
 244         transport_punchout_line->property_x2() = 0.0;
 245         transport_punchout_line->property_y2() = 0.0;
 246         transport_punchout_line->hide();
 247
 248         // used to show zoom mode active zooming
 249         zoom_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
 250         zoom_rect->property_outline_pixels() = 1;
 251         zoom_rect->hide();
 252
 253         zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
 254
 255         // used as rubberband rect
 256         rubberband_rect = new ArdourCanvas::SimpleRect (*track_canvas.root(), 0.0, 0.0, 0.0, 0.0);
 257         rubberband_rect->property_outline_pixels() = 1;
 258         rubberband_rect->hide();
 259
 260         tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
 261         meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
 262         marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
 263         cd_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_cd_marker_bar_event), cd_marker_bar));
 264         range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
 265         transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
 266
 267         ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_loop_range_view), false));
 268         ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_punch_range_view), false));
 269
 270         double time_height = timebar_height * 5;
 271         double time_width = FLT_MAX/frames_per_unit;
 272         time_canvas.set_scroll_region(0.0, 0.0, time_width, time_height);
 273
 274         playhead_cursor = new Cursor (*this, &Editor::canvas_playhead_cursor_event);
 275
 276         initial_ruler_update_required = true;
 277         track_canvas.signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));
 278
 279         if (logo_item) {
 280                 logo_item->lower_to_bottom ();
 281         }
 282
 283         ColorsChanged.connect (mem_fun (*this, &Editor::color_handler));
 284         color_handler();
 285
 286 }
 287
 288 void
 289 Editor::track_canvas_allocate (Gtk::Allocation alloc)
 290 {
 291         canvas_allocation = alloc;
 292
 293         if (!initial_ruler_update_required) {
 294                 if (!canvas_idle_queued) {
 295                         /* call this first so that we do stuff before any pending redraw */
 296                         Glib::signal_idle().connect (mem_fun (*this, &Editor::track_canvas_size_allocated), false);
 297                         canvas_idle_queued = true;
 298                 }
 299                 return;
 300         }
 301
 302         initial_ruler_update_required = false;
 303         track_canvas_size_allocated ();
 304 }
 305
 306 bool
 307 Editor::track_canvas_size_allocated ()
 308 {
 309         if (canvas_idle_queued) {
 310                 canvas_idle_queued = false;
 311         }
 312
 313         canvas_width = canvas_allocation.get_width();
 314         canvas_height = canvas_allocation.get_height();
 315
 316         full_canvas_height = canvas_height;
 317
 318         if (session) {
 319                 TrackViewList::iterator i;
 320                 double height = 0;
 321
 322                 for (i = track_views.begin(); i != track_views.end(); ++i) {
 323                         if ((*i)->control_parent) {
 324                                 height += (*i)->effective_height;
 325                         }
 326                 }
 327
 328                 full_canvas_height = height;
 329         }
 330
 331         zoom_range_clock.set ((nframes_t) floor ((canvas_width * frames_per_unit)));
 332         playhead_cursor->set_position (playhead_cursor->current_frame);
 333
 334         reset_hscrollbar_stepping ();
 335         reset_scrolling_region ();
 336
 337         if (playhead_cursor) playhead_cursor->set_length (canvas_height);
 338
 339         for (MarkerSelection::iterator x = selection->markers.begin(); x != selection->markers.end(); ++x) {
 340                 (*x)->set_line_length (canvas_height);
 341         }
 342
 343         if (range_marker_drag_rect) {
 344                 range_marker_drag_rect->property_y1() = 0.0;
 345                 range_marker_drag_rect->property_y2() = canvas_height;
 346         }
 347
 348         if (transport_loop_range_rect) {
 349                 transport_loop_range_rect->property_y1() = 0.0;
 350                 transport_loop_range_rect->property_y2() = canvas_height;
 351         }
 352
 353         if (transport_punch_range_rect) {
 354                 transport_punch_range_rect->property_y1() = 0.0;
 355                 transport_punch_range_rect->property_y2() = canvas_height;
 356         }
 357
 358         if (transport_punchin_line) {
 359                 transport_punchin_line->property_y1() = 0.0;
 360                 transport_punchin_line->property_y2() = canvas_height;
 361         }
 362
 363         if (transport_punchout_line) {
 364                 transport_punchout_line->property_y1() = 0.0;
 365                 transport_punchout_line->property_y2() = canvas_height;
 366         }
 367         compute_fixed_ruler_scale ();
 368
 369         update_fixed_rulers();
 370         redisplay_tempo (true);
 371
 372         if (logo_item) {
 373                 // logo_item->property_height() = canvas_height;
 374                 // logo_item->property_width() = canvas_width;
 375         }
 376
 377         Resized (); /* EMIT_SIGNAL */
 378
 379         return false;
 380 }
 381
 382 void
 383 Editor::reset_scrolling_region (Gtk::Allocation* alloc)
 384 {
 385         TreeModel::Children rows = route_display_model->children();
 386         TreeModel::Children::iterator i;
 387         double pos;
 388
 389         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 390                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 391                 if (tv != 0 && !tv->hidden()) {
 392                         pos += tv->effective_height;
 393                 }
 394         }
 395
 396         double last_canvas_unit =  max ((last_canvas_frame / frames_per_unit), canvas_width);
 397
 398         track_canvas.set_scroll_region (0.0, 0.0, last_canvas_unit, pos);
 399
 400         // XXX what is the correct height value for the time canvas ? this overstates it
 401         time_canvas.set_scroll_region ( 0.0, 0.0, last_canvas_unit, canvas_height);
 402
 403         range_marker_drag_rect->property_y2() = canvas_height;
 404         transport_loop_range_rect->property_y2() = canvas_height;
 405         transport_punch_range_rect->property_y2() = canvas_height;
 406         transport_punchin_line->property_y2() = canvas_height;
 407         transport_punchout_line->property_y2() = canvas_height;
 408
 409         update_punch_range_view (true);
 410
 411         controls_layout.queue_resize();
 412 }
 413
 414 void
 415 Editor::controls_layout_size_request (Requisition* req)
 416 {
 417         TreeModel::Children rows = route_display_model->children();
 418         TreeModel::Children::iterator i;
 419         double pos;
 420
 421         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 422                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 423                 if (tv != 0) {
 424                         pos += tv->effective_height;
 425                 }
 426         }
 427
 428         RefPtr<Gdk::Screen> screen = get_screen();
 429
 430         if (!screen) {
 431                 screen = Gdk::Screen::get_default();
 432         }
 433
 434         edit_controls_vbox.check_resize();
 435         req->width = max (edit_controls_vbox.get_width(),  controls_layout.get_width());
 436
 437         /* don't get too big. the fudge factors here are just guesses */
 438
 439         req->width = min (req->width, screen->get_width() - 300);
 440         req->height = min ((gint) pos, (screen->get_height() - 400));
 441
 442         /* this one is important: it determines how big the layout thinks it really is, as
 443            opposed to what it displays on the screen
 444         */
 445
 446         controls_layout.set_size (edit_controls_vbox.get_width(), (gint) pos);
 447         controls_layout.set_size_request(edit_controls_vbox.get_width(), -1);
 448         zoom_box.set_size_request(edit_controls_vbox.get_width(), -1);
 449         time_button_frame.set_size_request(edit_controls_vbox.get_width() + edit_vscrollbar.get_width(), -1);
 450
 451         //cerr << "sizes = " << req->width << " " << edit_controls_vbox.get_width() << " " << controls_layout.get_width() << " " << zoom_box.get_width() << " " << time_button_frame.get_width() << endl;//DEBUG
 452 }
 453
 454 bool
 455 Editor::track_canvas_map_handler (GdkEventAny* ev)
 456 {
 457         track_canvas.get_window()->set_cursor (*current_canvas_cursor);
 458         return false;
 459 }
 460
 461 bool
 462 Editor::time_canvas_map_handler (GdkEventAny* ev)
 463 {
 464         time_canvas.get_window()->set_cursor (*timebar_cursor);
 465         return false;
 466 }
 467
 468 void
 469 Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context,
 470                                          int x, int y,
 471                                          const SelectionData& data,
 472                                          guint info, guint time)
 473 {
 474         if (data.get_target() == "regions") {
 475                 drop_regions (context, x, y, data, info, time);
 476         } else {
 477                 drop_paths (context, x, y, data, info, time);
 478         }
 479 }
 480
 481 void
 482 Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
 483                     int x, int y,
 484                     const SelectionData& data,
 485                     guint info, guint time)
 486 {
 487         TimeAxisView* tvp;
 488         RouteTimeAxisView* tv;
 489         double cy;
 490         vector<ustring> paths;
 491         string spath;
 492         GdkEvent ev;
 493         nframes64_t frame;
 494
 495         if (convert_drop_to_paths (paths, context, x, y, data, info, time)) {
 496                 goto out;
 497         }
 498
 499         /* D-n-D coordinates are window-relative, so convert to "world" coordinates
 500          */
 501
 502         double wx;
 503         double wy;
 504
 505         track_canvas.window_to_world (x, y, wx, wy);
 506         wx += horizontal_adjustment.get_value();
 507         wy += vertical_adjustment.get_value();
 508
 509         ev.type = GDK_BUTTON_RELEASE;
 510         ev.button.x = wx;
 511         ev.button.y = wy;
 512
 513         frame = event_frame (&ev, 0, &cy);
 514
 515         snap_to (frame);
 516
 517         if ((tvp = trackview_by_y_position (cy)) == 0) {
 518
 519                 /* drop onto canvas background: create new tracks */
 520
 521                 do_embed (paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
 522
 523         } else if ((tv = dynamic_cast<RouteTimeAxisView*>(tvp)) != 0) {
 524
 525                 /* check that its an audio track, not a bus */
 526
 527                 /* check that its an audio track, not a bus */
 528
 529                 if (tv->get_diskstream()) {
 530                         /* select the track, then embed */
 531                         selection->set (tv);
 532                         do_embed (paths, Editing::ImportDistinctFiles, ImportToTrack, frame);
 533                 }
 534         }
 535
 536   out:
 537         context->drag_finish (true, false, time);
 538 }
 539
 540 void
 541 Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
 542                       int x, int y,
 543                       const SelectionData& data,
 544                       guint info, guint time)
 545 {
 546         const SerializedObjectPointers<boost::shared_ptr<Region> >* sr =
 547                 reinterpret_cast<const SerializedObjectPointers<boost::shared_ptr<Region> > *> (data.get_data());
 548
 549         for (uint32_t i = 0; i < sr->cnt; ++i) {
 550
 551                 boost::shared_ptr<Region> r = sr->data[i];
 552
 553                 insert_region_list_drag (r, x, y);
 554         }
 555
 556         context->drag_finish (true, false, time);
 557 }
 558
 559 void
 560 Editor::maybe_autoscroll (GdkEvent* event)
 561 {
 562         nframes_t rightmost_frame = leftmost_frame + current_page_frames();
 563         nframes_t frame = drag_info.current_pointer_frame;
 564         bool startit = false;
 565
 566         static int last_autoscroll_direction = 0;
 567
 568         if (frame > rightmost_frame) {
 569
 570                 if (rightmost_frame < max_frames) {
 571                         autoscroll_direction = 1;
 572                         startit = true;
 573                 }
 574
 575         } else if (frame < leftmost_frame) {
 576
 577                 if (leftmost_frame > 0) {
 578                         autoscroll_direction = -1;
 579                         startit = true;
 580                 }
 581
 582         } else {
 583
 584                 if (drag_info.last_pointer_frame > drag_info.current_pointer_frame) {
 585                         autoscroll_direction = -1;
 586                 } else {
 587                         autoscroll_direction = 1;
 588                 }
 589         }
 590
 591
 592         if ((autoscroll_direction != last_autoscroll_direction) || (leftmost_frame < frame < rightmost_frame)) {
 593                 stop_canvas_autoscroll ();
 594         }
 595
 596         if (startit && autoscroll_timeout_tag < 0) {
 597                 start_canvas_autoscroll (autoscroll_direction);
 598         }
 599
 600         last_autoscroll_direction = autoscroll_direction;
 601 }
 602
 603 gint
 604 Editor::_autoscroll_canvas (void *arg)
 605 {
 606         return ((Editor *) arg)->autoscroll_canvas ();
 607 }
 608
 609 bool
 610 Editor::autoscroll_canvas ()
 611 {
 612         nframes_t new_frame;
 613         nframes_t limit = max_frames - current_page_frames();
 614         GdkEventMotion ev;
 615         nframes_t target_frame;
 616
 617         if (autoscroll_direction < 0) {
 618                 if (leftmost_frame < autoscroll_distance) {
 619                         new_frame = 0;
 620                 } else {
 621                         new_frame = leftmost_frame - autoscroll_distance;
 622                 }
 623                 target_frame = drag_info.current_pointer_frame - autoscroll_distance;
 624         } else {
 625                 if (leftmost_frame > limit - autoscroll_distance) {
 626                         new_frame = limit;
 627                 } else {
 628                         new_frame = leftmost_frame + autoscroll_distance;
 629                 }
 630                 target_frame = drag_info.current_pointer_frame + autoscroll_distance;
 631         }
 632
 633         /* now fake a motion event to get the object that is being dragged to move too */
 634
 635         ev.type = GDK_MOTION_NOTIFY;
 636         ev.state &= Gdk::BUTTON1_MASK;
 637         ev.x = frame_to_unit (target_frame);
 638         ev.y = drag_info.current_pointer_y;
 639         motion_handler (drag_info.item, (GdkEvent*) &ev, drag_info.item_type, true);
 640
 641         if (new_frame == 0 || new_frame == limit) {
 642                 /* we are done */
 643                 return false;
 644         }
 645
 646         autoscroll_cnt++;
 647
 648         if (autoscroll_cnt == 1) {
 649
 650                 /* connect the timeout so that we get called repeatedly */
 651
 652                 autoscroll_timeout_tag = g_idle_add ( _autoscroll_canvas, this);
 653                 return false;
 654
 655         }
 656
 657         if (new_frame != leftmost_frame) {
 658                 reset_x_origin (new_frame);
 659         }
 660
 661         if (autoscroll_cnt == 50) { /* 0.5 seconds */
 662
 663                 /* after about a while, speed up a bit by changing the timeout interval */
 664
 665                 autoscroll_distance = (nframes_t) floor (current_page_frames()/30.0f);
 666
 667         } else if (autoscroll_cnt == 150) { /* 1.0 seconds */
 668
 669                 autoscroll_distance = (nframes_t) floor (current_page_frames()/20.0f);
 670
 671         } else if (autoscroll_cnt == 300) { /* 1.5 seconds */
 672
 673                 /* after about another while, speed up by increasing the shift per callback */
 674
 675                 autoscroll_distance =  (nframes_t) floor (current_page_frames()/10.0f);
 676
 677         }
 678
 679         return true;
 680 }
 681
 682 void
 683 Editor::start_canvas_autoscroll (int dir)
 684 {
 685         if (!session || autoscroll_active) {
 686                 return;
 687         }
 688
 689         stop_canvas_autoscroll ();
 690
 691         autoscroll_active = true;
 692         autoscroll_direction = dir;
 693         autoscroll_distance = (nframes_t) floor (current_page_frames()/50.0);
 694         autoscroll_cnt = 0;
 695
 696         /* do it right now, which will start the repeated callbacks */
 697
 698         autoscroll_canvas ();
 699 }
 700
 701 void
 702 Editor::stop_canvas_autoscroll ()
 703 {
 704         if (autoscroll_timeout_tag >= 0) {
 705                 g_source_remove (autoscroll_timeout_tag);
 706                 autoscroll_timeout_tag = -1;
 707         }
 708
 709         autoscroll_active = false;
 710 }
 711
 712 gint
 713 Editor::left_track_canvas (GdkEventCrossing *ev)
 714 {
 715         set_entered_track (0);
 716         set_entered_regionview (0);
 717         return FALSE;
 718 }
 719
 720
 721 void
 722 Editor::canvas_horizontally_scrolled ()
 723 {
 724         nframes64_t time_origin = (nframes_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
 725
 726         if (time_origin != leftmost_frame) {
 727                 canvas_scroll_to (time_origin);
 728         }
 729 }
 730
 731 void
 732 Editor::canvas_scroll_to (nframes64_t time_origin)
 733 {
 734         leftmost_frame = time_origin;
 735         nframes_t rightmost_frame = leftmost_frame + current_page_frames ();
 736
 737         if (rightmost_frame > last_canvas_frame) {
 738                 last_canvas_frame = rightmost_frame;
 739                 reset_scrolling_region ();
 740         }
 741
 742         if (logo_item) {
 743                 logo_item->property_x() = horizontal_adjustment.get_value ();
 744         }
 745
 746         update_fixed_rulers ();
 747
 748         redisplay_tempo (!_dragging_hscrollbar);
 749 }
 750
 751 void
 752 Editor::color_handler()
 753 {
 754         playhead_cursor->canvas_item.property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_PlayHead.get();
 755         verbose_canvas_cursor->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_VerboseCanvasCursor.get();
 756
 757         meter_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MeterBar.get();
 758         meter_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 759
 760         tempo_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TempoBar.get();
 761         tempo_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 762
 763         marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBar.get();
 764         marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 765
 766         cd_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CDMarkerBar.get();
 767         cd_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 768
 769         range_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeMarkerBar.get();
 770         range_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 771
 772         transport_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportMarkerBar.get();
 773         transport_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 774
 775         range_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 776         range_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 777
 778         transport_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 779         transport_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 780
 781         marker_drag_line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerDragLine.get();
 782
 783         range_marker_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
 784         range_marker_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
 785
 786         transport_loop_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 787         transport_loop_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 788
 789         transport_punch_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 790         transport_punch_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 791
 792         transport_punchin_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 793         transport_punchout_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 794
 795         zoom_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 796         zoom_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 797
 798         rubberband_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 799         rubberband_rect->property_fill_color_rgba() = (guint32) ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 800
 801         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 802         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 803         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 804         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 805         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 806
 807         refresh_location_display ();
 808         redisplay_tempo (true);
 809
 810         if (session)
 811                 session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
 812 }
 813