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         if (getenv ("ARDOUR_NON_AA_CANVAS")) {
 102                 track_canvas = new ArdourCanvas::Canvas ();
 103                 time_canvas = new ArdourCanvas::Canvas ();
 104         } else {
 105                 track_canvas = new ArdourCanvas::CanvasAA ();
 106                 time_canvas = new ArdourCanvas::CanvasAA ();
 107         }
 108
 109         ArdourCanvas::init ();
 110         ardour_canvas_type_init ();
 111
 112         /* don't try to center the canvas */
 113
 114         track_canvas->set_center_scroll_region (false);
 115         track_canvas->set_dither        (Gdk::RGB_DITHER_NONE);
 116
 117         /* need to handle 4 specific types of events as catch-alls */
 118
 119         track_canvas->signal_scroll_event().connect (mem_fun (*this, &Editor::track_canvas_scroll_event));
 120         track_canvas->signal_motion_notify_event().connect (mem_fun (*this, &Editor::track_canvas_motion_notify_event));
 121         track_canvas->signal_button_press_event().connect (mem_fun (*this, &Editor::track_canvas_button_press_event));
 122         track_canvas->signal_button_release_event().connect (mem_fun (*this, &Editor::track_canvas_button_release_event));
 123
 124         /* just scroll stuff for the timecanvas */
 125         time_canvas->signal_scroll_event().connect (mem_fun (*this, &Editor::time_canvas_scroll_event));
 126
 127         track_canvas->set_name ("EditorMainCanvas");
 128         track_canvas->add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
 129         track_canvas->signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
 130         track_canvas->signal_enter_notify_event().connect (mem_fun(*this, &Editor::entered_track_canvas));
 131         track_canvas->set_flags (CAN_FOCUS);
 132
 133         /* set up drag-n-drop */
 134
 135         vector<TargetEntry> target_table;
 136
 137         // Drag-N-Drop from the region list can generate this target
 138         target_table.push_back (TargetEntry ("regions"));
 139         target_table.push_back (TargetEntry ("routes"));
 140
 141         target_table.push_back (TargetEntry ("text/plain"));
 142         target_table.push_back (TargetEntry ("text/uri-list"));
 143         target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 144
 145         track_canvas->drag_dest_set (target_table);
 146         track_canvas->signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
 147
 148         /* stuff for the verbose canvas cursor */
 149
 150         Pango::FontDescription* font = get_font_for_style (N_("VerboseCanvasCursor"));
 151
 152         verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas->root());
 153         verbose_canvas_cursor->property_font_desc() = *font;
 154         verbose_canvas_cursor->property_anchor() = ANCHOR_NW;
 155
 156         delete font;
 157
 158         verbose_cursor_visible = false;
 159
 160         if (Profile->get_sae()) {
 161                 Image img (::get_icon (X_("saelogo")));
 162                 logo_item = new ArdourCanvas::Pixbuf (*track_canvas->root(), 0.0, 0.0, img.get_pixbuf());
 163                 // logo_item->property_height_in_pixels() = true;
 164                 // logo_item->property_width_in_pixels() = true;
 165                 // logo_item->property_height_set() = true;
 166                 // logo_item->property_width_set() = true;
 167                 logo_item->show ();
 168         }
 169
 170         /* a group to hold time (measure) lines */
 171
 172         time_line_group = new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
 173         tempo_lines = new TempoLines(*track_canvas, time_line_group);
 174         cursor_group = new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
 175
 176         time_canvas->set_name ("EditorTimeCanvas");
 177         time_canvas->add_events (Gdk::POINTER_MOTION_HINT_MASK);
 178         time_canvas->set_flags (CAN_FOCUS);
 179         time_canvas->set_center_scroll_region (false);
 180         time_canvas->set_dither (Gdk::RGB_DITHER_NONE);
 181
 182         marker_time_line_group = new ArdourCanvas::Group (*time_canvas->root(), 0.0, 0.0);
 183         marker_tempo_lines = new TempoLines(*time_canvas, marker_time_line_group);
 184
 185         meter_group = new ArdourCanvas::Group (*time_canvas->root(), 0.0, 0.0);
 186         tempo_group = new ArdourCanvas::Group (*time_canvas->root(), 0.0, timebar_height);
 187         range_marker_group = new ArdourCanvas::Group (*time_canvas->root(), 0.0, timebar_height * 2.0);
 188         transport_marker_group = new ArdourCanvas::Group (*time_canvas->root(), 0.0, timebar_height * 3.0);
 189         marker_group = new ArdourCanvas::Group (*time_canvas->root(), 0.0, timebar_height * 4.0);
 190         cd_marker_group = new ArdourCanvas::Group (*time_canvas->root(), 0.0, timebar_height * 5.0);
 191
 192         tempo_bar = new ArdourCanvas::SimpleRect (*tempo_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 193         tempo_bar->property_outline_what() = (0x1 | 0x8);
 194         tempo_bar->property_outline_pixels() = 1;
 195
 196
 197         meter_bar = new ArdourCanvas::SimpleRect (*meter_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 198         meter_bar->property_outline_what() = (0x1 | 0x8);
 199         meter_bar->property_outline_pixels() = 1;
 200
 201         marker_bar = new ArdourCanvas::SimpleRect (*marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 202         marker_bar->property_outline_what() = (0x1 | 0x8);
 203         marker_bar->property_outline_pixels() = 1;
 204
 205         cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 206         cd_marker_bar->property_outline_what() = (0x1 | 0x8);
 207         cd_marker_bar->property_outline_pixels() = 1;
 208
 209         range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 210         range_marker_bar->property_outline_what() = (0x1 | 0x8);
 211         range_marker_bar->property_outline_pixels() = 0;
 212
 213         transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 214         transport_marker_bar->property_outline_what() = (0x1 | 0x8);
 215         transport_marker_bar->property_outline_pixels() = 1;
 216
 217         cd_marker_bar_drag_rect = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 218         cd_marker_bar_drag_rect->property_outline_pixels() = 0;
 219         cd_marker_bar_drag_rect->hide ();
 220
 221         range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 222         range_bar_drag_rect->property_outline_pixels() = 0;
 223
 224         transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, max_canvas_coordinate, timebar_height-1.0);
 225         transport_bar_drag_rect->property_outline_pixels() = 0;
 226         transport_bar_drag_rect->hide ();
 227
 228         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
 229         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
 230
 231         marker_drag_line = new ArdourCanvas::Line (*track_canvas->root());
 232         marker_drag_line->property_width_pixels() = 1;
 233         marker_drag_line->property_points() = marker_drag_line_points;
 234         marker_drag_line->hide();
 235
 236         range_marker_drag_rect = new ArdourCanvas::SimpleRect (*track_canvas->root(), 0.0, 0.0, 0.0, 0.0);
 237         range_marker_drag_rect->hide ();
 238
 239         transport_loop_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
 240         transport_loop_range_rect->property_outline_pixels() = 1;
 241         transport_loop_range_rect->hide();
 242
 243         transport_punch_range_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
 244         transport_punch_range_rect->property_outline_pixels() = 0;
 245         transport_punch_range_rect->hide();
 246
 247         transport_loop_range_rect->lower_to_bottom (); // loop on the bottom
 248
 249         transport_punchin_line = new ArdourCanvas::SimpleLine (*time_line_group);
 250         transport_punchin_line->property_x1() = 0.0;
 251         transport_punchin_line->property_y1() = 0.0;
 252         transport_punchin_line->property_x2() = 0.0;
 253         transport_punchin_line->property_y2() = 0.0;
 254         transport_punchin_line->hide ();
 255
 256         transport_punchout_line  = new ArdourCanvas::SimpleLine (*time_line_group);
 257         transport_punchout_line->property_x1() = 0.0;
 258         transport_punchout_line->property_y1() = 0.0;
 259         transport_punchout_line->property_x2() = 0.0;
 260         transport_punchout_line->property_y2() = 0.0;
 261         transport_punchout_line->hide();
 262
 263         // used to show zoom mode active zooming
 264         zoom_rect = new ArdourCanvas::SimpleRect (*track_canvas->root(), 0.0, 0.0, 0.0, 0.0);
 265         zoom_rect->property_outline_pixels() = 1;
 266         zoom_rect->hide();
 267
 268         zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
 269
 270         // used as rubberband rect
 271         rubberband_rect = new ArdourCanvas::SimpleRect (*track_canvas->root(), 0.0, 0.0, 0.0, 0.0);
 272         rubberband_rect->property_outline_pixels() = 1;
 273         rubberband_rect->hide();
 274
 275         tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
 276         meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
 277         marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
 278         cd_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_cd_marker_bar_event), cd_marker_bar));
 279         range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
 280         transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
 281
 282         ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_loop_range_view), false));
 283         ZoomChanged.connect (bind (mem_fun(*this, &Editor::update_punch_range_view), false));
 284
 285         double time_height = timebar_height * 5;
 286         double time_width = FLT_MAX/frames_per_unit;
 287         time_canvas->set_scroll_region(0.0, 0.0, time_width, time_height);
 288
 289         playhead_cursor = new Cursor (*this, &Editor::canvas_playhead_cursor_event);
 290
 291         initial_ruler_update_required = true;
 292         track_canvas->signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));
 293
 294         if (logo_item) {
 295                 logo_item->lower_to_bottom ();
 296         }
 297
 298         ColorsChanged.connect (mem_fun (*this, &Editor::color_handler));
 299         color_handler();
 300
 301 }
 302
 303 void
 304 Editor::track_canvas_allocate (Gtk::Allocation alloc)
 305 {
 306         canvas_allocation = alloc;
 307
 308         if (!initial_ruler_update_required) {
 309                 if (!canvas_idle_queued) {
 310                         /* call this first so that we do stuff before any pending redraw */
 311                         Glib::signal_idle().connect (mem_fun (*this, &Editor::track_canvas_size_allocated), false);
 312                         canvas_idle_queued = true;
 313                 }
 314                 return;
 315         }
 316
 317         initial_ruler_update_required = false;
 318         track_canvas_size_allocated ();
 319 }
 320
 321 bool
 322 Editor::track_canvas_size_allocated ()
 323 {
 324         if (canvas_idle_queued) {
 325                 canvas_idle_queued = false;
 326         }
 327
 328         canvas_width = canvas_allocation.get_width();
 329         canvas_height = canvas_allocation.get_height();
 330
 331         full_canvas_height = canvas_height;
 332
 333         if (session) {
 334                 TrackViewList::iterator i;
 335                 double height = 0;
 336
 337                 for (i = track_views.begin(); i != track_views.end(); ++i) {
 338                         if ((*i)->control_parent) {
 339                                 height += (*i)->effective_height;
 340                         }
 341                 }
 342
 343                 full_canvas_height = height;
 344         }
 345
 346         zoom_range_clock.set ((nframes_t) floor ((canvas_width * frames_per_unit)));
 347         playhead_cursor->set_position (playhead_cursor->current_frame);
 348
 349         reset_hscrollbar_stepping ();
 350         reset_scrolling_region ();
 351
 352         if (playhead_cursor) playhead_cursor->set_length (canvas_height);
 353
 354         double y1 = vertical_adjustment.get_value ();
 355
 356         for (MarkerSelection::iterator x = selection->markers.begin(); x != selection->markers.end(); ++x) {
 357                 (*x)->set_line_vpos (y1, canvas_height);
 358         }
 359
 360         range_marker_drag_rect->property_y1() = y1;
 361         range_marker_drag_rect->property_y2() = full_canvas_height;
 362         transport_loop_range_rect->property_y1() = y1;
 363         transport_loop_range_rect->property_y2() = full_canvas_height;
 364         transport_punch_range_rect->property_y1() = y1;
 365         transport_punch_range_rect->property_y2() = full_canvas_height;
 366         transport_punchin_line->property_y1() = y1;
 367         transport_punchin_line->property_y2() = full_canvas_height;
 368         transport_punchout_line->property_y1() = y1;
 369         transport_punchout_line->property_y2() = full_canvas_height;
 370
 371         update_fixed_rulers();
 372         redisplay_tempo (true);
 373
 374         Resized (); /* EMIT_SIGNAL */
 375
 376         return false;
 377 }
 378
 379 void
 380 Editor::reset_scrolling_region (Gtk::Allocation* alloc)
 381 {
 382         TreeModel::Children rows = route_display_model->children();
 383         TreeModel::Children::iterator i;
 384         double pos;
 385
 386         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 387                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 388                 if (tv != 0 && !tv->hidden()) {
 389                         pos += tv->effective_height;
 390                 }
 391         }
 392
 393         double last_canvas_unit =  max ((last_canvas_frame / frames_per_unit), canvas_width);
 394
 395         track_canvas->set_scroll_region (0.0, 0.0, last_canvas_unit, pos);
 396
 397         // XXX what is the correct height value for the time canvas ? this overstates it
 398         time_canvas->set_scroll_region ( 0.0, 0.0, last_canvas_unit, canvas_height);
 399
 400         range_marker_drag_rect->property_y2() = canvas_height;
 401         transport_loop_range_rect->property_y2() = canvas_height;
 402         transport_punch_range_rect->property_y2() = canvas_height;
 403         transport_punchin_line->property_y2() = canvas_height;
 404         transport_punchout_line->property_y2() = canvas_height;
 405
 406         update_punch_range_view (true);
 407
 408         controls_layout.queue_resize();
 409 }
 410
 411 void
 412 Editor::controls_layout_size_request (Requisition* req)
 413 {
 414         TreeModel::Children rows = route_display_model->children();
 415         TreeModel::Children::iterator i;
 416         double pos;
 417
 418         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 419                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 420                 if (tv != 0) {
 421                         pos += tv->effective_height;
 422                 }
 423         }
 424
 425         RefPtr<Gdk::Screen> screen = get_screen();
 426
 427         if (!screen) {
 428                 screen = Gdk::Screen::get_default();
 429         }
 430
 431         edit_controls_vbox.check_resize();
 432         req->width = max (edit_controls_vbox.get_width(),  controls_layout.get_width());
 433
 434         /* don't get too big. the fudge factors here are just guesses */
 435
 436         req->width = min (req->width, screen->get_width() - 300);
 437         req->height = min ((gint) pos, (screen->get_height() - 400));
 438
 439         /* this one is important: it determines how big the layout thinks it really is, as
 440            opposed to what it displays on the screen
 441         */
 442
 443         controls_layout.set_size (edit_controls_vbox.get_width(), (gint) pos);
 444         controls_layout.set_size_request(edit_controls_vbox.get_width(), -1);
 445         zoom_box.set_size_request(edit_controls_vbox.get_width(), -1);
 446         time_button_frame.set_size_request(edit_controls_vbox.get_width(), -1);
 447
 448         //cerr << "sizes = " << req->width << " " << edit_controls_vbox.get_width() << " " << controls_layout.get_width() << " " << zoom_box.get_width() << " " << time_button_frame.get_width() << endl;//DEBUG
 449 }
 450
 451 bool
 452 Editor::track_canvas_map_handler (GdkEventAny* ev)
 453 {
 454         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 455         return false;
 456 }
 457
 458 bool
 459 Editor::time_canvas_map_handler (GdkEventAny* ev)
 460 {
 461         time_canvas->get_window()->set_cursor (*timebar_cursor);
 462         return false;
 463 }
 464
 465 void
 466 Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context,
 467                                          int x, int y,
 468                                          const SelectionData& data,
 469                                          guint info, guint time)
 470 {
 471         cerr << "drop on canvas, target = " << data.get_target() << endl;
 472
 473         if (data.get_target() == "regions") {
 474                 drop_regions (context, x, y, data, info, time);
 475         }
 476         else if(data.get_target() == "routes") {
 477                 drop_routes (context, x, y, data, info, time);
 478         }
 479         else {
 480                 drop_paths (context, x, y, data, info, time);
 481         }
 482 }
 483
 484 void
 485 Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
 486                     int x, int y,
 487                     const SelectionData& data,
 488                     guint info, guint time)
 489 {
 490         TimeAxisView* tvp;
 491         RouteTimeAxisView* tv;
 492         double cy;
 493         vector<ustring> paths;
 494         string spath;
 495         GdkEvent ev;
 496         nframes64_t frame;
 497
 498         if (convert_drop_to_paths (paths, context, x, y, data, info, time)) {
 499                 goto out;
 500         }
 501
 502         /* D-n-D coordinates are window-relative, so convert to "world" coordinates
 503          */
 504
 505         double wx;
 506         double wy;
 507
 508         track_canvas->window_to_world (x, y, wx, wy);
 509         wx += horizontal_adjustment.get_value();
 510         wy += vertical_adjustment.get_value();
 511
 512         ev.type = GDK_BUTTON_RELEASE;
 513         ev.button.x = wx;
 514         ev.button.y = wy;
 515
 516         frame = event_frame (&ev, 0, &cy);
 517
 518         snap_to (frame);
 519
 520         if ((tvp = trackview_by_y_position (cy)) == 0) {
 521
 522                 /* drop onto canvas background: create new tracks */
 523
 524                 if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
 525                         do_import (paths, Editing::ImportDistinctFiles, Editing::ImportAsTrack, SrcBest, frame);
 526                 } else {
 527                         do_embed (paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
 528                 }
 529
 530         } else if ((tv = dynamic_cast<RouteTimeAxisView*>(tvp)) != 0) {
 531
 532                 /* check that its an audio track, not a bus */
 533
 534                 /* check that its an audio track, not a bus */
 535
 536                 if (tv->get_diskstream()) {
 537                         /* select the track, then embed */
 538                         selection->set (tv);
 539
 540                         if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
 541                                 do_import (paths, Editing::ImportDistinctFiles, Editing::ImportToTrack, SrcBest, frame);
 542                         } else {
 543                                 do_embed (paths, Editing::ImportDistinctFiles, ImportToTrack, frame);
 544                         }
 545                 }
 546         }
 547
 548   out:
 549         context->drag_finish (true, false, time);
 550 }
 551
 552 void
 553 Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
 554                       int x, int y,
 555                       const SelectionData& data,
 556                       guint info, guint time)
 557 {
 558         const SerializedObjectPointers<boost::shared_ptr<Region> >* sr =
 559                 reinterpret_cast<const SerializedObjectPointers<boost::shared_ptr<Region> > *> (data.get_data());
 560
 561         for (uint32_t i = 0; i < sr->cnt; ++i) {
 562
 563                 boost::shared_ptr<Region> r = sr->data[i];
 564
 565                 insert_region_list_drag (r, x, y);
 566         }
 567
 568         context->drag_finish (true, false, time);
 569 }
 570
 571 void
 572 Editor::drop_routes (const Glib::RefPtr<Gdk::DragContext>& context,
 573                      int x, int y,
 574                      const Gtk::SelectionData& data,
 575                      guint info, guint time) {
 576         const SerializedObjectPointers<boost::shared_ptr<Route> >* sr =
 577                 reinterpret_cast<const SerializedObjectPointers<boost::shared_ptr<Route> > *> (data.get_data());
 578
 579         for (uint32_t i = 0; i < sr->cnt; ++i) {
 580                 boost::shared_ptr<Route> r = sr->data[i];
 581                 insert_route_list_drag (r, x, y);
 582         }
 583
 584         context->drag_finish (true, false, time);
 585 }
 586
 587 void
 588 Editor::maybe_autoscroll (GdkEventMotion* event)
 589 {
 590         nframes_t rightmost_frame = leftmost_frame + current_page_frames();
 591         nframes_t frame = drag_info.current_pointer_frame;
 592         bool startit = false;
 593         double vertical_pos = vertical_adjustment.get_value();
 594
 595         autoscroll_y = 0;
 596         autoscroll_x = 0;
 597
 598         if (event->y < vertical_pos) {
 599                 autoscroll_y = -1;
 600                 startit = true;
 601         }
 602
 603         if (event->y > vertical_pos + canvas_height) {
 604                 autoscroll_y = 1;
 605                 startit = true;
 606         }
 607
 608         if (frame > rightmost_frame) {
 609
 610                 if (rightmost_frame < max_frames) {
 611                         autoscroll_x = 1;
 612                         startit = true;
 613                 }
 614
 615         } else if (frame < leftmost_frame) {
 616
 617                 if (leftmost_frame > 0) {
 618                         autoscroll_x = -1;
 619                         startit = true;
 620                 }
 621
 622         }
 623
 624         if ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0)) {
 625                 stop_canvas_autoscroll ();
 626         }
 627
 628         if (startit && autoscroll_timeout_tag < 0) {
 629                 start_canvas_autoscroll (autoscroll_x, autoscroll_y);
 630         }
 631
 632         last_autoscroll_x = autoscroll_x;
 633         last_autoscroll_y = autoscroll_y;
 634 }
 635
 636 gint
 637 Editor::_autoscroll_canvas (void *arg)
 638 {
 639         return ((Editor *) arg)->autoscroll_canvas ();
 640 }
 641
 642 bool
 643 Editor::autoscroll_canvas ()
 644 {
 645         nframes_t new_frame;
 646         nframes_t limit = max_frames - current_page_frames();
 647         GdkEventMotion ev;
 648         nframes_t target_frame;
 649         double new_pixel;
 650         double target_pixel;
 651
 652         if (autoscroll_x < 0) {
 653                 if (leftmost_frame < autoscroll_x_distance) {
 654                         new_frame = 0;
 655                 } else {
 656                         new_frame = leftmost_frame - autoscroll_x_distance;
 657                 }
 658                 target_frame = drag_info.current_pointer_frame - autoscroll_x_distance;
 659         } else if (autoscroll_x > 0) {
 660                 if (leftmost_frame > limit - autoscroll_x_distance) {
 661                         new_frame = limit;
 662                 } else {
 663                         new_frame = leftmost_frame + autoscroll_x_distance;
 664                 }
 665                 target_frame = drag_info.current_pointer_frame + autoscroll_x_distance;
 666         } else {
 667                 target_frame = drag_info.current_pointer_frame;
 668                 new_frame = leftmost_frame;
 669         }
 670
 671         double vertical_pos = vertical_adjustment.get_value();
 672
 673         if (autoscroll_y < 0) {
 674
 675                 if (vertical_pos < autoscroll_y_distance) {
 676                         new_pixel = 0;
 677                 } else {
 678                         new_pixel = vertical_pos - autoscroll_y_distance;
 679                 }
 680
 681                 target_pixel = drag_info.current_pointer_y - autoscroll_y_distance;
 682                 target_pixel = max (target_pixel, 0.0);
 683
 684         } else if (autoscroll_y > 0) {
 685
 686                 double top_of_bottom_of_canvas = full_canvas_height - canvas_height;
 687
 688                 if (vertical_pos > full_canvas_height - autoscroll_y_distance) {
 689                         new_pixel = full_canvas_height;
 690                 } else {
 691                         new_pixel = vertical_pos + autoscroll_y_distance;
 692                 }
 693
 694                 new_pixel = min (top_of_bottom_of_canvas, new_pixel);
 695
 696                 target_pixel = drag_info.current_pointer_y + autoscroll_y_distance;
 697
 698                 /* don't move to the full canvas height because the item will be invisible
 699                    (its top edge will line up with the bottom of the visible canvas.
 700                 */
 701
 702                 target_pixel = min (target_pixel, full_canvas_height - 10);
 703
 704         } else {
 705                 target_pixel = drag_info.current_pointer_y;
 706                 new_pixel = vertical_pos;
 707         }
 708
 709         /* now fake a motion event to get the object that is being dragged to move too */
 710
 711         ev.type = GDK_MOTION_NOTIFY;
 712         ev.state &= Gdk::BUTTON1_MASK;
 713         ev.x = frame_to_unit (target_frame);
 714         ev.y = target_pixel;
 715         motion_handler (drag_info.item, (GdkEvent*) &ev, drag_info.item_type, true);
 716
 717         if ((new_frame == 0 || new_frame == limit) && (new_pixel == 0 || new_pixel == DBL_MAX)) {
 718                 /* we are done */
 719                 return false;
 720         }
 721
 722         autoscroll_cnt++;
 723
 724         if (autoscroll_cnt == 1) {
 725
 726                 /* connect the timeout so that we get called repeatedly */
 727
 728                 autoscroll_timeout_tag = g_idle_add ( _autoscroll_canvas, this);
 729                 return false;
 730
 731         }
 732
 733         if (new_frame != leftmost_frame) {
 734                 reset_x_origin (new_frame);
 735         }
 736
 737         vertical_adjustment.set_value (new_pixel);
 738
 739         if (autoscroll_x_distance != 0) {
 740
 741                 if (autoscroll_cnt == 50) { /* 0.5 seconds */
 742
 743                         /* after about a while, speed up a bit by changing the timeout interval */
 744
 745                         autoscroll_x_distance = (nframes_t) floor (current_page_frames()/30.0f);
 746
 747                 } else if (autoscroll_cnt == 150) { /* 1.0 seconds */
 748
 749                         autoscroll_x_distance = (nframes_t) floor (current_page_frames()/20.0f);
 750
 751                 } else if (autoscroll_cnt == 300) { /* 1.5 seconds */
 752
 753                         /* after about another while, speed up by increasing the shift per callback */
 754
 755                         autoscroll_x_distance =  (nframes_t) floor (current_page_frames()/10.0f);
 756
 757                 }
 758         }
 759
 760         if (autoscroll_y_distance != 0) {
 761
 762                 if (autoscroll_cnt == 50) { /* 0.5 seconds */
 763
 764                         /* after about a while, speed up a bit by changing the timeout interval */
 765
 766                         autoscroll_y_distance = 10;
 767
 768                 } else if (autoscroll_cnt == 150) { /* 1.0 seconds */
 769
 770                         autoscroll_y_distance = 20;
 771
 772                 } else if (autoscroll_cnt == 300) { /* 1.5 seconds */
 773
 774                         /* after about another while, speed up by increasing the shift per callback */
 775
 776                         autoscroll_y_distance =  40;
 777                 }
 778         }
 779
 780         return true;
 781 }
 782
 783 void
 784 Editor::start_canvas_autoscroll (int dx, int dy)
 785 {
 786         if (!session || autoscroll_active) {
 787                 return;
 788         }
 789
 790         stop_canvas_autoscroll ();
 791
 792         autoscroll_active = true;
 793         autoscroll_x = dx;
 794         autoscroll_y = dy;
 795         autoscroll_x_distance = (nframes_t) floor (current_page_frames()/50.0);
 796         autoscroll_y_distance = fabs (dy * 5); /* pixels */
 797         autoscroll_cnt = 0;
 798
 799         /* do it right now, which will start the repeated callbacks */
 800
 801         autoscroll_canvas ();
 802 }
 803
 804 void
 805 Editor::stop_canvas_autoscroll ()
 806 {
 807         if (autoscroll_timeout_tag >= 0) {
 808                 g_source_remove (autoscroll_timeout_tag);
 809                 autoscroll_timeout_tag = -1;
 810         }
 811
 812         autoscroll_active = false;
 813 }
 814
 815 bool
 816 Editor::left_track_canvas (GdkEventCrossing *ev)
 817 {
 818         set_entered_track (0);
 819         set_entered_regionview (0);
 820         reset_canvas_action_sensitivity (false);
 821         return false;
 822 }
 823
 824 bool
 825 Editor::entered_track_canvas (GdkEventCrossing *ev)
 826 {
 827         reset_canvas_action_sensitivity (true);
 828         return FALSE;
 829 }
 830
 831 void
 832 Editor::tie_vertical_scrolling ()
 833 {
 834         double y1 = vertical_adjustment.get_value();
 835
 836         playhead_cursor->set_y_axis (y1);
 837
 838         range_marker_drag_rect->property_y1() = y1;
 839         range_marker_drag_rect->property_y2() = full_canvas_height;
 840         transport_loop_range_rect->property_y1() = y1;
 841         transport_loop_range_rect->property_y2() = full_canvas_height;
 842         transport_punch_range_rect->property_y1() = y1;
 843         transport_punch_range_rect->property_y2() = full_canvas_height;
 844         transport_punchin_line->property_y1() = y1;
 845         transport_punchin_line->property_y2() = full_canvas_height;
 846         transport_punchout_line->property_y1() = y1;
 847         transport_punchout_line->property_y2() = full_canvas_height;
 848
 849         if (!selection->markers.empty()) {
 850                 for (MarkerSelection::iterator x = selection->markers.begin(); x != selection->markers.end(); ++x) {
 851                         (*x)->set_line_vpos (y1, canvas_height);
 852                 }
 853         }
 854
 855         if (logo_item) {
 856                 logo_item->property_y() = y1;
 857         }
 858
 859         /* this will do an immediate redraw */
 860
 861         controls_layout.get_vadjustment()->set_value (y1);
 862 }
 863
 864 void
 865 Editor::canvas_horizontally_scrolled ()
 866 {
 867         nframes64_t time_origin = (nframes_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
 868
 869         if (time_origin != leftmost_frame) {
 870                 canvas_scroll_to (time_origin);
 871         }
 872 }
 873
 874 void
 875 Editor::canvas_scroll_to (nframes64_t time_origin)
 876 {
 877         leftmost_frame = time_origin;
 878         nframes_t rightmost_frame = leftmost_frame + current_page_frames ();
 879
 880         if (rightmost_frame > last_canvas_frame) {
 881                 last_canvas_frame = rightmost_frame;
 882                 reset_scrolling_region ();
 883         }
 884
 885         if (logo_item) {
 886                 logo_item->property_x() = horizontal_adjustment.get_value ();
 887         }
 888
 889         update_fixed_rulers ();
 890
 891         redisplay_tempo (!_dragging_hscrollbar);
 892 }
 893
 894 void
 895 Editor::color_handler()
 896 {
 897         playhead_cursor->canvas_item.property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_PlayHead.get();
 898         verbose_canvas_cursor->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_VerboseCanvasCursor.get();
 899
 900         meter_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MeterBar.get();
 901         meter_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 902
 903         tempo_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TempoBar.get();
 904         tempo_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 905
 906         marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBar.get();
 907         marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 908
 909         cd_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CDMarkerBar.get();
 910         cd_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 911
 912         range_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeMarkerBar.get();
 913         range_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 914
 915         transport_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportMarkerBar.get();
 916         transport_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 917
 918         cd_marker_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 919         cd_marker_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 920
 921         range_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 922         range_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 923
 924         transport_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 925         transport_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 926
 927         marker_drag_line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerDragLine.get();
 928
 929         range_marker_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
 930         range_marker_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
 931
 932         transport_loop_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 933         transport_loop_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 934
 935         transport_punch_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 936         transport_punch_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 937
 938         transport_punchin_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 939         transport_punchout_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 940
 941         zoom_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 942         zoom_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 943
 944         rubberband_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 945         rubberband_rect->property_fill_color_rgba() = (guint32) ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 946
 947         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 948         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 949         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 950         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 951         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 952
 953         refresh_location_display ();
 954         redisplay_tempo (true);
 955
 956         if (session)
 957                 session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
 958 }
 959
 960
 961 void
 962 Editor::flush_canvas ()
 963 {
 964         if (is_mapped()) {
 965                 track_canvas->update_now ();
 966                 // gdk_window_process_updates (GTK_LAYOUT(track_canvas->gobj())->bin_window, true);
 967         }
 968 }