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/audioregion.h>
  26 #include <ardour/profile.h>
  27
  28 #include "ardour_ui.h"
  29 #include "editor.h"
  30 #include "waveview.h"
  31 #include "simplerect.h"
  32 #include "simpleline.h"
  33 #include "imageframe.h"
  34 #include "waveview_p.h"
  35 #include "simplerect_p.h"
  36 #include "simpleline_p.h"
  37 #include "imageframe_p.h"
  38 #include "canvas_impl.h"
  39 #include "editing.h"
  40 #include "rgb_macros.h"
  41 #include "utils.h"
  42 #include "time_axis_view.h"
  43 #include "audio_time_axis.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         range_marker_drag_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, physical_screen_height);
 156         range_marker_drag_rect->hide ();
 157
 158         _trackview_group = new ArdourCanvas::Group (*_master_group);
 159         _region_motion_group = new ArdourCanvas::Group (*_trackview_group);
 160
 161         meter_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 162         if (Profile->get_sae()) {
 163                 meter_bar = new ArdourCanvas::SimpleRect (*meter_bar_group, 0.0, 0.0, physical_screen_width, timebar_height - 1);
 164                 meter_bar->property_outline_pixels() = 1;
 165         } else {
 166                 meter_bar = new ArdourCanvas::SimpleRect (*meter_bar_group, 0.0, 0.0, physical_screen_width, timebar_height);
 167                 meter_bar->property_outline_pixels() = 0;
 168         }
 169         meter_bar->property_outline_what() = (0x1 | 0x8);
 170
 171         tempo_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 172         if (Profile->get_sae()) {
 173                 tempo_bar = new ArdourCanvas::SimpleRect (*tempo_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height - 1));
 174                 tempo_bar->property_outline_pixels() = 1;
 175         } else {
 176                 tempo_bar = new ArdourCanvas::SimpleRect (*tempo_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height));
 177                 tempo_bar->property_outline_pixels() = 0;
 178         }
 179         tempo_bar->property_outline_what() = (0x1 | 0x8);
 180
 181         range_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 182         if (Profile->get_sae()) {
 183                 range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height - 1));
 184                 range_marker_bar->property_outline_pixels() = 1;
 185         } else {
 186                 range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height));
 187                 range_marker_bar->property_outline_pixels() = 0;
 188         }
 189         range_marker_bar->property_outline_what() = (0x1 | 0x8);
 190
 191         transport_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 192         if (Profile->get_sae()) {
 193                 transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_bar_group, 0.0, 0.0,  physical_screen_width, (timebar_height - 1));
 194                 transport_marker_bar->property_outline_pixels() = 1;
 195         } else {
 196                 transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_bar_group, 0.0, 0.0,  physical_screen_width, (timebar_height));
 197                 transport_marker_bar->property_outline_pixels() = 0;
 198         }
 199         transport_marker_bar->property_outline_what() = (0x1 | 0x8);
 200
 201         marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 202         if (Profile->get_sae()) {
 203                 marker_bar = new ArdourCanvas::SimpleRect (*marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height - 1));
 204                 marker_bar->property_outline_pixels() = 1;
 205         } else {
 206                 marker_bar = new ArdourCanvas::SimpleRect (*marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height));
 207                 marker_bar->property_outline_pixels() = 0;
 208         }
 209         marker_bar->property_outline_what() = (0x1 | 0x8);
 210
 211         cd_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root ());
 212         if (Profile->get_sae()) {
 213                 cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height - 1));
 214                 cd_marker_bar->property_outline_pixels() = 1;
 215         } else {
 216                 cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height));
 217                 cd_marker_bar->property_outline_pixels() = 0;
 218         }
 219         cd_marker_bar->property_outline_what() = (0x1 | 0x8);
 220
 221         timebar_group =  new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
 222         cursor_group = new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
 223
 224         meter_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 5.0);
 225         tempo_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 4.0);
 226         range_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 3.0);
 227         transport_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 2.0);
 228         marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height);
 229         cd_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, 0.0);
 230
 231         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
 232         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, physical_screen_height));
 233
 234         marker_drag_line = new ArdourCanvas::Line (*timebar_group);
 235         marker_drag_line->property_width_pixels() = 1;
 236         marker_drag_line->property_points() = marker_drag_line_points;
 237         marker_drag_line->hide();
 238
 239         cd_marker_bar_drag_rect = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, 100, timebar_height);
 240         cd_marker_bar_drag_rect->property_outline_pixels() = 0;
 241         cd_marker_bar_drag_rect->hide ();
 242
 243         range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, 100, timebar_height);
 244         range_bar_drag_rect->property_outline_pixels() = 0;
 245         range_bar_drag_rect->hide ();
 246
 247         transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, 100, timebar_height);
 248         transport_bar_drag_rect->property_outline_pixels() = 0;
 249         transport_bar_drag_rect->hide ();
 250
 251         transport_punchin_line = new ArdourCanvas::SimpleLine (*_master_group);
 252         transport_punchin_line->property_x1() = 0.0;
 253         transport_punchin_line->property_y1() = 0.0;
 254         transport_punchin_line->property_x2() = 0.0;
 255         transport_punchin_line->property_y2() = physical_screen_height;
 256         transport_punchin_line->hide ();
 257
 258         transport_punchout_line  = new ArdourCanvas::SimpleLine (*_master_group);
 259         transport_punchout_line->property_x1() = 0.0;
 260         transport_punchout_line->property_y1() = 0.0;
 261         transport_punchout_line->property_x2() = 0.0;
 262         transport_punchout_line->property_y2() = physical_screen_height;
 263         transport_punchout_line->hide();
 264
 265         // used to show zoom mode active zooming
 266         zoom_rect = new ArdourCanvas::SimpleRect (*_master_group, 0.0, 0.0, 0.0, 0.0);
 267         zoom_rect->property_outline_pixels() = 1;
 268         zoom_rect->hide();
 269
 270         zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
 271
 272         // used as rubberband rect
 273         rubberband_rect = new ArdourCanvas::SimpleRect (*_trackview_group, 0.0, 0.0, 0.0, 0.0);
 274
 275         rubberband_rect->property_outline_pixels() = 1;
 276         rubberband_rect->hide();
 277
 278         tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
 279         meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
 280         marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
 281         cd_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_cd_marker_bar_event), cd_marker_bar));
 282         range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
 283         transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
 284
 285         playhead_cursor = new Cursor (*this, &Editor::canvas_playhead_cursor_event);
 286
 287         if (logo_item) {
 288                 logo_item->lower_to_bottom ();
 289         }
 290         /* need to handle 4 specific types of events as catch-alls */
 291
 292         track_canvas->signal_scroll_event().connect (mem_fun (*this, &Editor::track_canvas_scroll_event));
 293         track_canvas->signal_motion_notify_event().connect (mem_fun (*this, &Editor::track_canvas_motion_notify_event));
 294         track_canvas->signal_button_press_event().connect (mem_fun (*this, &Editor::track_canvas_button_press_event));
 295         track_canvas->signal_button_release_event().connect (mem_fun (*this, &Editor::track_canvas_button_release_event));
 296
 297         track_canvas->set_name ("EditorMainCanvas");
 298         track_canvas->add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
 299         track_canvas->signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
 300         track_canvas->signal_enter_notify_event().connect (mem_fun(*this, &Editor::entered_track_canvas));
 301         track_canvas->set_flags (CAN_FOCUS);
 302
 303         /* set up drag-n-drop */
 304
 305         vector<TargetEntry> target_table;
 306
 307         // Drag-N-Drop from the region list can generate this target
 308         target_table.push_back (TargetEntry ("regions"));
 309
 310         target_table.push_back (TargetEntry ("text/plain"));
 311         target_table.push_back (TargetEntry ("text/uri-list"));
 312         target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 313
 314         track_canvas->drag_dest_set (target_table);
 315         track_canvas->signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
 316
 317         track_canvas->signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));
 318
 319         ColorsChanged.connect (mem_fun (*this, &Editor::color_handler));
 320         color_handler();
 321
 322 }
 323
 324 void
 325 Editor::track_canvas_allocate (Gtk::Allocation alloc)
 326 {
 327         canvas_allocation = alloc;
 328         track_canvas_size_allocated ();
 329 }
 330
 331 bool
 332 Editor::track_canvas_size_allocated ()
 333 {
 334         bool height_changed = canvas_height != canvas_allocation.get_height();
 335
 336         canvas_width = canvas_allocation.get_width();
 337         canvas_height = canvas_allocation.get_height();
 338
 339         if (session) {
 340                 TrackViewList::iterator i;
 341                 for (i = track_views.begin(); i != track_views.end(); ++i) {
 342                         (*i)->clip_to_viewport ();
 343                 }
 344         }
 345
 346         if (height_changed) {
 347                 if (playhead_cursor) {
 348                         playhead_cursor->set_length (canvas_height);
 349                 }
 350
 351                 for (MarkerSelection::iterator x = selection->markers.begin(); x != selection->markers.end(); ++x) {
 352                         (*x)->set_line_vpos (0, canvas_height);
 353                 }
 354
 355                 vertical_adjustment.set_page_size (canvas_height);
 356                 last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 357                 if ((vertical_adjustment.get_value() + canvas_height) >= vertical_adjustment.get_upper()) {
 358                         /*
 359                            We're increasing the size of the canvas while the bottom is visible.
 360                            We scroll down to keep in step with the controls layout.
 361                         */
 362                         vertical_adjustment.set_value (full_canvas_height - canvas_height);
 363                 }
 364         }
 365
 366         handle_new_duration ();
 367         reset_hscrollbar_stepping ();
 368         update_fixed_rulers();
 369         redisplay_tempo (false);
 370
 371         Resized (); /* EMIT_SIGNAL */
 372
 373         return false;
 374 }
 375
 376 void
 377 Editor::controls_layout_size_request (Requisition* req)
 378 {
 379         TreeModel::Children rows = route_display_model->children();
 380         TreeModel::Children::iterator i;
 381         double pos;
 382         bool changed = false;
 383
 384         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 385                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 386                 if (tv != 0) {
 387                         pos += tv->effective_height;
 388                 }
 389         }
 390
 391         gint height = min ((gint) pos, (gint) (physical_screen_height - 600));
 392         gint width = max (edit_controls_vbox.get_width(),  controls_layout.get_width());
 393
 394         /* don't get too big. the fudge factors here are just guesses */
 395
 396         width =  min (width, (gint) (physical_screen_width - 300));
 397
 398         if ((req->width != width) || (req->height != height)) {
 399                 changed = true;
 400                 controls_layout_size_request_connection.disconnect ();
 401         }
 402
 403         if (req->width != width) {
 404                 gint vbox_width = edit_controls_vbox.get_width();
 405                 req->width = width;
 406
 407                 /* this one is important: it determines how big the layout thinks it really is, as
 408                    opposed to what it displays on the screen
 409                 */
 410                 controls_layout.property_width () = vbox_width;
 411                 controls_layout.property_width_request () = vbox_width;
 412
 413                 time_button_event_box.property_width_request () = vbox_width;
 414                 zoom_box.property_width_request () = vbox_width;
 415         }
 416
 417         if (req->height != height) {
 418                 req->height = height;
 419                 controls_layout.property_height () = (guint) floor (pos);
 420                 controls_layout.property_height_request () = height;
 421         }
 422
 423         if (changed) {
 424                 controls_layout_size_request_connection = controls_layout.signal_size_request().connect (mem_fun (*this, &Editor::controls_layout_size_request));
 425         }
 426         //cerr << "sizes = " << req->width << " " << edit_controls_vbox.get_width() << " " << controls_layout.get_width() << " " << zoom_box.get_width() << " " << time_button_frame.get_width() << endl;//DEBUG
 427 }
 428
 429 bool
 430 Editor::track_canvas_map_handler (GdkEventAny* ev)
 431 {
 432         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 433         return false;
 434 }
 435
 436 void
 437 Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context,
 438                                          int x, int y,
 439                                          const SelectionData& data,
 440                                          guint info, guint time)
 441 {
 442         if (data.get_target() == "regions") {
 443                 drop_regions (context, x, y, data, info, time);
 444         } else {
 445                 drop_paths (context, x, y, data, info, time);
 446         }
 447 }
 448
 449 bool
 450 Editor::idle_drop_paths (vector<ustring> paths, nframes64_t frame, double ypos)
 451 {
 452         drop_paths_part_two (paths, frame, ypos);
 453         return false;
 454 }
 455
 456 void
 457 Editor::drop_paths_part_two (const vector<ustring>& paths, nframes64_t frame, double ypos)
 458 {
 459         TimeAxisView* tvp;
 460         AudioTimeAxisView* tv;
 461
 462         if ((tvp = trackview_by_y_position (ypos)) == 0) {
 463
 464                 /* drop onto canvas background: create new tracks */
 465
 466                 frame = 0;
 467
 468                 if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
 469                         do_import (paths, Editing::ImportDistinctFiles, Editing::ImportAsTrack, SrcBest, frame);
 470                 } else {
 471                         do_embed (paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
 472                 }
 473
 474         } else if ((tv = dynamic_cast<AudioTimeAxisView*>(tvp)) != 0) {
 475
 476                 /* check that its an audio track, not a bus */
 477
 478                 if (tv->get_diskstream()) {
 479                         /* select the track, then embed/import */
 480                         selection->set (tv);
 481
 482                         if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
 483                                 do_import (paths, Editing::ImportSerializeFiles, Editing::ImportToTrack, SrcBest, frame);
 484                         } else {
 485                                 do_embed (paths, Editing::ImportSerializeFiles, ImportToTrack, frame);
 486                         }
 487                 }
 488         }
 489 }
 490
 491 void
 492 Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
 493                     int x, int y,
 494                     const SelectionData& data,
 495                     guint info, guint time)
 496 {
 497         vector<ustring> paths;
 498         GdkEvent ev;
 499         nframes64_t frame;
 500         double wx;
 501         double wy;
 502         double cy;
 503
 504         if (convert_drop_to_paths (paths, context, x, y, data, info, time) == 0) {
 505
 506                 /* D-n-D coordinates are window-relative, so convert to "world" coordinates
 507                  */
 508
 509                 track_canvas->window_to_world (x, y, wx, wy);
 510
 511                 ev.type = GDK_BUTTON_RELEASE;
 512                 ev.button.x = wx;
 513                 ev.button.y = wy;
 514
 515                 frame = event_frame (&ev, 0, &cy);
 516
 517                 snap_to (frame);
 518
 519 #ifdef GTKOSX
 520                 /* We are not allowed to call recursive main event loops from within
 521                    the main event loop with GTK/Quartz. Since import/embed wants
 522                    to push up a progress dialog, defer all this till we go idle.
 523                 */
 524                 Glib::signal_idle().connect (bind (mem_fun (*this, &Editor::idle_drop_paths), paths, frame, cy));
 525 #else
 526                 drop_paths_part_two (paths, frame, cy);
 527 #endif
 528         }
 529
 530         context->drag_finish (true, false, time);
 531 }
 532
 533 void
 534 Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
 535                       int x, int y,
 536                       const SelectionData& data,
 537                       guint info, guint time)
 538 {
 539         std::list<boost::shared_ptr<Region> > regions;
 540         region_list_display.get_object_drag_data (regions);
 541
 542         for (list<boost::shared_ptr<Region> >::iterator r = regions.begin(); r != regions.end(); ++r) {
 543
 544                 boost::shared_ptr<AudioRegion> ar;
 545
 546                 if ((ar = boost::dynamic_pointer_cast<AudioRegion>(*r)) != 0) {
 547                         insert_region_list_drag (ar, x, y);
 548                 }
 549         }
 550
 551         context->drag_finish (true, false, time);
 552 }
 553
 554 void
 555 Editor::maybe_autoscroll (GdkEventMotion* event)
 556 {
 557
 558         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 559         nframes64_t frame = drag_info.current_pointer_frame;
 560         bool startit = false;
 561
 562         autoscroll_y = 0;
 563         autoscroll_x = 0;
 564         if (event->y < canvas_timebars_vsize) {
 565                 autoscroll_y = -1;
 566                 startit = true;
 567         } else if (event->y > canvas_height) {
 568                 autoscroll_y = 1;
 569                 startit = true;
 570         }
 571
 572         if (frame > rightmost_frame) {
 573
 574                 if (rightmost_frame < max_frames) {
 575                         autoscroll_x = 1;
 576                         startit = true;
 577                 }
 578
 579         } else if (frame < leftmost_frame) {
 580                 if (leftmost_frame > 0) {
 581                         autoscroll_x = -1;
 582                         startit = true;
 583                 }
 584
 585         }
 586
 587         if (!allow_vertical_scroll) {
 588                 autoscroll_y = 0;
 589         }
 590
 591         if ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0)) {
 592                 stop_canvas_autoscroll ();
 593         }
 594
 595         if (startit && autoscroll_timeout_tag < 0) {
 596                 start_canvas_autoscroll (autoscroll_x, autoscroll_y);
 597         }
 598
 599         last_autoscroll_x = autoscroll_x;
 600         last_autoscroll_y = autoscroll_y;
 601 }
 602
 603 void
 604 Editor::maybe_autoscroll_horizontally (GdkEventMotion* event)
 605 {
 606         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 607         nframes64_t frame = drag_info.current_pointer_frame;
 608         bool startit = false;
 609
 610         autoscroll_y = 0;
 611         autoscroll_x = 0;
 612
 613         if (frame > rightmost_frame) {
 614
 615                 if (rightmost_frame < max_frames) {
 616                         autoscroll_x = 1;
 617                         startit = true;
 618                 }
 619
 620         } else if (frame < leftmost_frame) {
 621                 if (leftmost_frame > 0) {
 622                         autoscroll_x = -1;
 623                         startit = true;
 624                 }
 625
 626         }
 627
 628         if ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0)) {
 629                 stop_canvas_autoscroll ();
 630         }
 631
 632         if (startit && autoscroll_timeout_tag < 0) {
 633                 start_canvas_autoscroll (autoscroll_x, autoscroll_y);
 634         }
 635
 636         last_autoscroll_x = autoscroll_x;
 637         last_autoscroll_y = autoscroll_y;
 638 }
 639
 640 gint
 641 Editor::_autoscroll_canvas (void *arg)
 642 {
 643         return ((Editor *) arg)->autoscroll_canvas ();
 644 }
 645
 646 bool
 647 Editor::autoscroll_canvas ()
 648 {
 649         nframes64_t new_frame;
 650         nframes64_t limit = max_frames - current_page_frames();
 651         GdkEventMotion ev;
 652         double new_pixel;
 653         double target_pixel;
 654
 655         if (autoscroll_x_distance != 0) {
 656                 if (autoscroll_x > 0) {
 657                         autoscroll_x_distance = (unit_to_frame (drag_info.current_pointer_x) - (leftmost_frame + current_page_frames())) / 3;
 658                 } else if (autoscroll_x < 0) {
 659                         autoscroll_x_distance = (leftmost_frame - unit_to_frame (drag_info.current_pointer_x)) / 3;
 660
 661                 }
 662         }
 663
 664         if (autoscroll_y_distance != 0) {
 665                 if (autoscroll_y > 0) {
 666                         autoscroll_y_distance = (drag_info.current_pointer_y - (get_trackview_group_vertical_offset() + canvas_height)) / 3;
 667                 } else if (autoscroll_y < 0) {
 668
 669                         autoscroll_y_distance = (vertical_adjustment.get_value () - drag_info.current_pointer_y) / 3;
 670                 }
 671         }
 672
 673         if (autoscroll_x < 0) {
 674                 if (leftmost_frame < autoscroll_x_distance) {
 675                         new_frame = 0;
 676                 } else {
 677                         new_frame = leftmost_frame - autoscroll_x_distance;
 678                 }
 679         } else if (autoscroll_x > 0) {
 680                 if (leftmost_frame > limit - autoscroll_x_distance) {
 681                         new_frame = limit;
 682                 } else {
 683                         new_frame = leftmost_frame + autoscroll_x_distance;
 684                 }
 685         } else {
 686                 new_frame = leftmost_frame;
 687         }
 688
 689         double vertical_pos = vertical_adjustment.get_value();
 690
 691         if (autoscroll_y < 0) {
 692
 693                 if (vertical_pos < autoscroll_y_distance) {
 694                         new_pixel = 0;
 695                 } else {
 696                         new_pixel = vertical_pos - autoscroll_y_distance;
 697                 }
 698
 699                 target_pixel = drag_info.current_pointer_y - autoscroll_y_distance;
 700                 target_pixel = max (target_pixel, 0.0);
 701
 702         } else if (autoscroll_y > 0) {
 703
 704                 double top_of_bottom_of_canvas = full_canvas_height - canvas_height;
 705
 706                 if (vertical_pos > full_canvas_height - autoscroll_y_distance) {
 707                         new_pixel = full_canvas_height;
 708                 } else {
 709                         new_pixel = vertical_pos + autoscroll_y_distance;
 710                 }
 711
 712                 new_pixel = min (top_of_bottom_of_canvas, new_pixel);
 713
 714                 target_pixel = drag_info.current_pointer_y + autoscroll_y_distance;
 715
 716                 /* don't move to the full canvas height because the item will be invisible
 717                    (its top edge will line up with the bottom of the visible canvas.
 718                 */
 719
 720                 target_pixel = min (target_pixel, full_canvas_height - 10);
 721
 722         } else {
 723                 target_pixel = drag_info.current_pointer_y;
 724                 new_pixel = vertical_pos;
 725         }
 726
 727         if ((new_frame == 0 || new_frame == limit) && (new_pixel == 0 || new_pixel == DBL_MAX)) {
 728                 /* we are done */
 729                 return false;
 730         }
 731
 732         if (new_frame != leftmost_frame) {
 733                 reset_x_origin (new_frame);
 734         }
 735
 736         vertical_adjustment.set_value (new_pixel);
 737
 738         /* fake an event. */
 739
 740         Glib::RefPtr<Gdk::Window> canvas_window = const_cast<Editor*>(this)->track_canvas->get_window();
 741         gint x, y;
 742         Gdk::ModifierType mask;
 743         canvas_window->get_pointer (x, y, mask);
 744         ev.type = GDK_MOTION_NOTIFY;
 745         ev.state &= Gdk::BUTTON1_MASK;
 746         ev.x = x;
 747         ev.y = y;
 748
 749         motion_handler (drag_info.item, (GdkEvent*) &ev, drag_info.item_type, true);
 750
 751         autoscroll_cnt++;
 752
 753         if (autoscroll_cnt == 1) {
 754
 755                 /* connect the timeout so that we get called repeatedly */
 756
 757                 autoscroll_timeout_tag = g_idle_add ( _autoscroll_canvas, this);
 758                 return false;
 759
 760         }
 761
 762         return true;
 763 }
 764
 765 void
 766 Editor::start_canvas_autoscroll (int dx, int dy)
 767 {
 768         if (!session || autoscroll_active) {
 769                 return;
 770         }
 771
 772         stop_canvas_autoscroll ();
 773
 774         autoscroll_active = true;
 775         autoscroll_x = dx;
 776         autoscroll_y = dy;
 777         autoscroll_x_distance = (nframes64_t) floor (current_page_frames()/50.0);
 778         autoscroll_y_distance = fabs (dy * 5); /* pixels */
 779         autoscroll_cnt = 0;
 780
 781         /* do it right now, which will start the repeated callbacks */
 782
 783         autoscroll_canvas ();
 784 }
 785
 786 void
 787 Editor::stop_canvas_autoscroll ()
 788 {
 789
 790         if (autoscroll_timeout_tag >= 0) {
 791                 g_source_remove (autoscroll_timeout_tag);
 792                 autoscroll_timeout_tag = -1;
 793         }
 794
 795         autoscroll_active = false;
 796 }
 797
 798 bool
 799 Editor::left_track_canvas (GdkEventCrossing *ev)
 800 {
 801         set_entered_track (0);
 802         set_entered_regionview (0);
 803         reset_canvas_action_sensitivity (false);
 804         return false;
 805 }
 806
 807 bool
 808 Editor::entered_track_canvas (GdkEventCrossing *ev)
 809 {
 810         reset_canvas_action_sensitivity (true);
 811         return FALSE;
 812 }
 813
 814 void
 815 Editor::tie_vertical_scrolling ()
 816 {
 817         scroll_canvas_vertically ();
 818
 819         /* this will do an immediate redraw */
 820
 821         controls_layout.get_vadjustment()->set_value (vertical_adjustment.get_value());
 822 }
 823
 824 void
 825 Editor::scroll_canvas_horizontally ()
 826 {
 827         /* horizontal scrolling only */
 828         double x1, y1, x2, y2, x_delta;
 829         _master_group->get_bounds (x1, y1, x2, y2);
 830
 831         x_delta = - (x1 +  horizontal_adjustment.get_value());
 832
 833         _master_group->move (x_delta, 0);
 834         timebar_group->move (x_delta, 0);
 835         time_line_group->move (x_delta, 0);
 836         cursor_group->move (x_delta, 0);
 837
 838         leftmost_frame = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
 839
 840         update_fixed_rulers ();
 841         redisplay_tempo (true);
 842
 843 #ifndef GTKOSX
 844         if (!autoscroll_active && !_stationary_playhead) {
 845                 /* force rulers and canvas to move in lock step */
 846                 while (gtk_events_pending ()) {
 847                         gtk_main_iteration ();
 848                 }
 849         }
 850 #endif
 851
 852 }
 853
 854 void
 855 Editor::scroll_canvas_vertically ()
 856 {
 857         /* vertical scrolling only */
 858
 859         double y_delta;
 860
 861         y_delta = last_trackview_group_vertical_offset - get_trackview_group_vertical_offset ();
 862         _trackview_group->move (0, y_delta);
 863         _background_group->move (0, y_delta);
 864
 865         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 866                 (*i)->clip_to_viewport ();
 867         }
 868         last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 869         /* required to keep the controls_layout in lock step with the canvas group */
 870         track_canvas->update_now ();
 871 }
 872
 873 void
 874 Editor::color_handler()
 875 {
 876         playhead_cursor->canvas_item.property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_PlayHead.get();
 877         verbose_canvas_cursor->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_VerboseCanvasCursor.get();
 878
 879         meter_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MeterBar.get();
 880         meter_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 881
 882         tempo_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TempoBar.get();
 883         tempo_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 884
 885         marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBar.get();
 886         marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 887
 888         cd_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CDMarkerBar.get();
 889         cd_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 890
 891         range_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeMarkerBar.get();
 892         range_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 893
 894         transport_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportMarkerBar.get();
 895         transport_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 896
 897         cd_marker_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 898         cd_marker_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 899
 900         range_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 901         range_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 902
 903         transport_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 904         transport_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 905
 906         marker_drag_line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerDragLine.get();
 907
 908         range_marker_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
 909         range_marker_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
 910
 911         transport_loop_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 912         transport_loop_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 913
 914         transport_punch_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 915         transport_punch_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 916
 917         transport_punchin_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 918         transport_punchout_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 919
 920         zoom_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 921         zoom_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 922
 923         rubberband_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 924         rubberband_rect->property_fill_color_rgba() = (guint32) ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 925
 926         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 927         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 928         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 929         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 930         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 931
 932         refresh_location_display ();
 933 /*
 934         redisplay_tempo (true);
 935
 936         if (session)
 937                 session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
 938 */
 939 }
 940
 941 void
 942 Editor::flush_canvas ()
 943 {
 944         if (is_mapped()) {
 945                 track_canvas->update_now ();
 946                 // gdk_window_process_updates (GTK_LAYOUT(track_canvas->gobj())->bin_window, true);
 947         }
 948 }
 949