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 nframes64_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
  99 void
 100 Editor::initialize_canvas ()
 101 {
 102         if (getenv ("ARDOUR_NON_AA_CANVAS")) {
 103                 track_canvas = new ArdourCanvas::Canvas ();
 104         } else {
 105                 track_canvas = new ArdourCanvas::CanvasAA ();
 106         }
 107
 108         ArdourCanvas::init ();
 109         ardour_canvas_type_init ();
 110
 111         /* don't try to center the canvas */
 112
 113         track_canvas->set_center_scroll_region (false);
 114         track_canvas->set_dither (Gdk::RGB_DITHER_NONE);
 115
 116         Glib::RefPtr<Gdk::Screen> screen = get_screen();
 117
 118         if (!screen) {
 119                 screen = Gdk::Screen::get_default();
 120         }
 121         physical_screen_width = screen->get_width ();
 122         physical_screen_height = screen->get_height ();
 123
 124         /* stuff for the verbose canvas cursor */
 125
 126         Pango::FontDescription* font = get_font_for_style (N_("VerboseCanvasCursor"));
 127
 128         verbose_canvas_cursor = new ArdourCanvas::Text (*track_canvas->root());
 129         verbose_canvas_cursor->property_font_desc() = *font;
 130         verbose_canvas_cursor->property_anchor() = ANCHOR_NW;
 131
 132         delete font;
 133
 134         verbose_cursor_visible = false;
 135
 136         if (Profile->get_sae()) {
 137                 Image img (::get_icon (X_("saelogo")));
 138                 logo_item = new ArdourCanvas::Pixbuf (*track_canvas->root(), 0.0, 0.0, img.get_pixbuf());
 139                 // logo_item->property_height_in_pixels() = true;
 140                 // logo_item->property_width_in_pixels() = true;
 141                 // logo_item->property_height_set() = true;
 142                 // logo_item->property_width_set() = true;
 143                 logo_item->show ();
 144         }
 145
 146         _master_group = new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
 147
 148         transport_loop_range_rect = new ArdourCanvas::SimpleRect (*_master_group, 0.0, 0.0, 0.0, 0.0);
 149         transport_loop_range_rect->property_outline_pixels() = 1;
 150         transport_loop_range_rect->hide();
 151
 152         transport_punch_range_rect = new ArdourCanvas::SimpleRect (*_master_group, 0.0, 0.0, 0.0, 0.0);
 153         transport_punch_range_rect->property_outline_pixels() = 0;
 154         transport_punch_range_rect->hide();
 155
 156         /* a group to hold time (measure) lines */
 157         time_line_group = new ArdourCanvas::Group (*_master_group, 0.0, 0.0);
 158
 159         range_marker_drag_rect = new ArdourCanvas::SimpleRect (*time_line_group, 0.0, 0.0, 0.0, 0.0);
 160         range_marker_drag_rect->hide ();
 161
 162         _trackview_group = new ArdourCanvas::Group (*_master_group, 0.0, 0.0);
 163         _region_motion_group = new ArdourCanvas::Group (*_trackview_group, 0.0, 0.0);
 164
 165         /* el barrio */
 166
 167         meter_bar_group = new ArdourCanvas::Group (*track_canvas->root());
 168         meter_bar = new ArdourCanvas::SimpleRect (*meter_bar_group, 0.0, 0.0, physical_screen_width, timebar_height-1.0);
 169         meter_bar->property_outline_what() = (0x1 | 0x8);
 170         meter_bar->property_outline_pixels() = 1;
 171
 172         tempo_bar_group = new ArdourCanvas::Group (*track_canvas->root());
 173         tempo_bar = new ArdourCanvas::SimpleRect (*tempo_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height-1.0));
 174         tempo_bar->property_outline_what() = (0x1 | 0x8);
 175         tempo_bar->property_outline_pixels() = 1;
 176
 177         range_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root());
 178         range_marker_bar = new ArdourCanvas::SimpleRect (*range_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height-1.0));
 179         range_marker_bar->property_outline_what() = (0x1 | 0x8);
 180         range_marker_bar->property_outline_pixels() = 1;
 181
 182         transport_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root());
 183         transport_marker_bar = new ArdourCanvas::SimpleRect (*transport_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height-1.0));
 184         transport_marker_bar->property_outline_what() = (0x1 | 0x8);
 185         transport_marker_bar->property_outline_pixels() = 1;
 186
 187         marker_bar_group = new ArdourCanvas::Group (*track_canvas->root());
 188         marker_bar = new ArdourCanvas::SimpleRect (*marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height-1.0));
 189         marker_bar->property_outline_what() = (0x1 | 0x8);
 190         marker_bar->property_outline_pixels() = 1;
 191
 192         cd_marker_bar_group = new ArdourCanvas::Group (*track_canvas->root());
 193         cd_marker_bar = new ArdourCanvas::SimpleRect (*cd_marker_bar_group, 0.0, 0.0, physical_screen_width, (timebar_height-1.0));
 194         cd_marker_bar->property_outline_what() = (0x1 | 0x8);
 195         cd_marker_bar->property_outline_pixels() = 1;
 196
 197         timebar_group =  new ArdourCanvas::Group (*track_canvas->root());
 198         cursor_group = new ArdourCanvas::Group (*track_canvas->root(), 0.0, 0.0);
 199
 200         meter_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 5.0);
 201         tempo_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 4.0);
 202         range_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 3.0);
 203         transport_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height * 2.0);
 204         marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, timebar_height);
 205         cd_marker_group = new ArdourCanvas::Group (*timebar_group, 0.0, 0.0);
 206
 207         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 0.0));
 208         marker_drag_line_points.push_back(Gnome::Art::Point(0.0, 1.0));
 209
 210         marker_drag_line = new ArdourCanvas::Line (*timebar_group);
 211         marker_drag_line->property_width_pixels() = 1;
 212         marker_drag_line->property_points() = marker_drag_line_points;
 213         marker_drag_line->hide();
 214
 215         cd_marker_bar_drag_rect = new ArdourCanvas::SimpleRect (*cd_marker_group, 0.0, 0.0, 100, timebar_height);
 216         cd_marker_bar_drag_rect->property_outline_pixels() = 0;
 217         cd_marker_bar_drag_rect->hide ();
 218
 219         range_bar_drag_rect = new ArdourCanvas::SimpleRect (*range_marker_group, 0.0, 0.0, 100, timebar_height);
 220         range_bar_drag_rect->property_outline_pixels() = 0;
 221         range_bar_drag_rect->hide ();
 222
 223         transport_bar_drag_rect = new ArdourCanvas::SimpleRect (*transport_marker_group, 0.0, 0.0, 100, timebar_height);
 224         transport_bar_drag_rect->property_outline_pixels() = 0;
 225         transport_bar_drag_rect->hide ();
 226
 227         transport_punchin_line = new ArdourCanvas::SimpleLine (*_master_group);
 228         transport_punchin_line->property_x1() = 0.0;
 229         transport_punchin_line->property_y1() = 0.0;
 230         transport_punchin_line->property_x2() = 0.0;
 231         transport_punchin_line->property_y2() = 0.0;
 232         transport_punchin_line->hide ();
 233
 234         transport_punchout_line = new ArdourCanvas::SimpleLine (*_master_group);
 235         transport_punchout_line->property_x1() = 0.0;
 236         transport_punchout_line->property_y1() = 0.0;
 237         transport_punchout_line->property_x2() = 0.0;
 238         transport_punchout_line->property_y2() = 0.0;
 239         transport_punchout_line->hide();
 240
 241         // used to show zoom mode active zooming
 242         zoom_rect = new ArdourCanvas::SimpleRect (*_master_group, 0.0, 0.0, 0.0, 0.0);
 243         zoom_rect->property_outline_pixels() = 1;
 244         zoom_rect->hide();
 245
 246         zoom_rect->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_zoom_rect_event), (ArdourCanvas::Item*) 0));
 247
 248         // used as rubberband rect
 249         rubberband_rect = new ArdourCanvas::SimpleRect (*_trackview_group, 0.0, 0.0, 0.0, 0.0);
 250
 251         rubberband_rect->property_outline_pixels() = 1;
 252         rubberband_rect->hide();
 253
 254         tempo_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_tempo_bar_event), tempo_bar));
 255         meter_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_meter_bar_event), meter_bar));
 256         marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_marker_bar_event), marker_bar));
 257         cd_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_cd_marker_bar_event), cd_marker_bar));
 258         range_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_range_marker_bar_event), range_marker_bar));
 259         transport_marker_bar->signal_event().connect (bind (mem_fun (*this, &Editor::canvas_transport_marker_bar_event), transport_marker_bar));
 260
 261         playhead_cursor = new Cursor (*this, &Editor::canvas_playhead_cursor_event);
 262
 263         if (logo_item) {
 264                 logo_item->lower_to_bottom ();
 265         }
 266
 267         /* need to handle 4 specific types of events as catch-alls */
 268
 269         track_canvas->signal_scroll_event().connect (mem_fun (*this, &Editor::track_canvas_scroll_event));
 270         track_canvas->signal_motion_notify_event().connect (mem_fun (*this, &Editor::track_canvas_motion_notify_event));
 271         track_canvas->signal_button_press_event().connect (mem_fun (*this, &Editor::track_canvas_button_press_event));
 272         track_canvas->signal_button_release_event().connect (mem_fun (*this, &Editor::track_canvas_button_release_event));
 273
 274         track_canvas->set_name ("EditorMainCanvas");
 275         track_canvas->add_events (Gdk::POINTER_MOTION_HINT_MASK|Gdk::SCROLL_MASK);
 276         track_canvas->signal_leave_notify_event().connect (mem_fun(*this, &Editor::left_track_canvas));
 277         track_canvas->signal_enter_notify_event().connect (mem_fun(*this, &Editor::entered_track_canvas));
 278         track_canvas->set_flags (CAN_FOCUS);
 279
 280         /* set up drag-n-drop */
 281
 282         vector<TargetEntry> target_table;
 283
 284         // Drag-N-Drop from the region list can generate this target
 285         target_table.push_back (TargetEntry ("regions"));
 286         target_table.push_back (TargetEntry ("routes"));
 287
 288         target_table.push_back (TargetEntry ("text/plain"));
 289         target_table.push_back (TargetEntry ("text/uri-list"));
 290         target_table.push_back (TargetEntry ("application/x-rootwin-drop"));
 291
 292         track_canvas->drag_dest_set (target_table);
 293         track_canvas->signal_drag_data_received().connect (mem_fun(*this, &Editor::track_canvas_drag_data_received));
 294
 295         track_canvas->signal_size_allocate().connect (mem_fun(*this, &Editor::track_canvas_allocate));
 296
 297         ColorsChanged.connect (mem_fun (*this, &Editor::color_handler));
 298         color_handler();
 299
 300 }
 301
 302 void
 303 Editor::track_canvas_allocate (Gtk::Allocation alloc)
 304 {
 305         canvas_allocation = alloc;
 306         track_canvas_size_allocated ();
 307 }
 308
 309 bool
 310 Editor::track_canvas_size_allocated ()
 311 {
 312         bool height_changed = canvas_height != canvas_allocation.get_height();
 313
 314         canvas_width = canvas_allocation.get_width();
 315         canvas_height = canvas_allocation.get_height();
 316
 317         if (session) {
 318                 TrackViewList::iterator i;
 319                 double height = 0;
 320
 321                 for (i = track_views.begin(); i != track_views.end(); ++i) {
 322                         if ((*i)->control_parent) {
 323                                 height += (*i)->effective_height;
 324                         }
 325                         (*i)->clip_to_viewport ();
 326                 }
 327
 328                 full_canvas_height = height + canvas_timebars_vsize;
 329         } else {
 330                 return true;
 331         }
 332
 333         if (height_changed) {
 334                 if (playhead_cursor) {
 335                         playhead_cursor->set_length (canvas_height);
 336                 }
 337
 338                 vertical_adjustment.set_page_size (canvas_height);
 339
 340                 for (MarkerSelection::iterator x = selection->markers.begin(); x != selection->markers.end(); ++x) {
 341                         (*x)->set_line_vpos (0, canvas_height);
 342                 }
 343
 344                 //      marker_drag_line_points.back().set_y(canvas_height);
 345                 range_marker_drag_rect->property_y2() = canvas_height;
 346                 transport_loop_range_rect->property_y2() = canvas_height;
 347                 transport_punch_range_rect->property_y2() = canvas_height;
 348                 transport_punchin_line->property_y2() = canvas_height;
 349                 transport_punchout_line->property_y2() = canvas_height;
 350         }
 351         horizontal_adjustment.set_upper (session->current_end_frame()/frames_per_unit);
 352         horizontal_adjustment.set_page_size (current_page_frames()/frames_per_unit);
 353         reset_hscrollbar_stepping ();
 354         update_fixed_rulers();
 355         redisplay_tempo (false);
 356
 357         last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 358         if ((vertical_adjustment.get_value() + canvas_height) >= vertical_adjustment.get_upper()) {
 359                 /*
 360                    We're increasing the size of the canvas while the bottom is visible.
 361                    We scroll down to keep in step with the controls layout.
 362                 */
 363                 vertical_adjustment.set_value (full_canvas_height - canvas_height + 1);
 364         }
 365
 366         Resized (); /* EMIT_SIGNAL */
 367
 368         return false;
 369 }
 370
 371 void
 372 Editor::controls_layout_size_request (Requisition* req)
 373 {
 374         TreeModel::Children rows = route_display_model->children();
 375         TreeModel::Children::iterator i;
 376         double pos;
 377         bool changed = false;
 378
 379         for (pos = 0, i = rows.begin(); i != rows.end(); ++i) {
 380                 TimeAxisView *tv = (*i)[route_display_columns.tv];
 381                 if (tv != 0) {
 382                         pos += tv->effective_height;
 383                         tv->clip_to_viewport ();
 384                 }
 385         }
 386
 387         RefPtr<Gdk::Screen> screen = get_screen();
 388
 389         if (!screen) {
 390                 screen = Gdk::Screen::get_default();
 391         }
 392         gint height = min ( (gint) pos, (gint) (physical_screen_height - 600));
 393         gint width = max (edit_controls_vbox.get_width(),  controls_layout.get_width());
 394
 395         /* don't get too big. the fudge factors here are just guesses */
 396
 397         width =  min (width, (gint) (physical_screen_width - 300));
 398
 399         if ((req->width != width) || (req->height != height)) {
 400                 changed = true;
 401                 controls_layout_size_request_connection.disconnect ();
 402         }
 403
 404         if (req->width != width) {
 405                 gint vbox_width = edit_controls_vbox.get_width();
 406                 req->width = width;
 407
 408                 /* this one is important: it determines how big the layout thinks it really is, as
 409                    opposed to what it displays on the screen
 410                 */
 411                 controls_layout.property_width () = vbox_width;
 412                 controls_layout.property_width_request () = vbox_width;
 413
 414                 time_button_event_box.property_width_request () = vbox_width;
 415                 zoom_box.property_width_request () = vbox_width;
 416         }
 417
 418         if (req->height != height) {
 419                 req->height = height;
 420                 controls_layout.property_height () = (guint) floor (pos);
 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 }
 427
 428 bool
 429 Editor::track_canvas_map_handler (GdkEventAny* ev)
 430 {
 431         track_canvas->get_window()->set_cursor (*current_canvas_cursor);
 432         return false;
 433 }
 434
 435 void
 436 Editor::track_canvas_drag_data_received (const RefPtr<Gdk::DragContext>& context,
 437                                          int x, int y,
 438                                          const SelectionData& data,
 439                                          guint info, guint time)
 440 {
 441         cerr << "drop on canvas, target = " << data.get_target() << endl;
 442
 443         if (data.get_target() == "regions") {
 444                 drop_regions (context, x, y, data, info, time);
 445         }
 446         else if(data.get_target() == "routes") {
 447                 drop_routes (context, x, y, data, info, time);
 448         }
 449         else {
 450                 drop_paths (context, x, y, data, info, time);
 451         }
 452 }
 453
 454 void
 455 Editor::drop_paths (const RefPtr<Gdk::DragContext>& context,
 456                     int x, int y,
 457                     const SelectionData& data,
 458                     guint info, guint time)
 459 {
 460         TimeAxisView* tvp;
 461         RouteTimeAxisView* tv;
 462         double cy;
 463         vector<ustring> paths;
 464         string spath;
 465         GdkEvent ev;
 466         nframes64_t frame;
 467
 468         if (convert_drop_to_paths (paths, context, x, y, data, info, time)) {
 469                 goto out;
 470         }
 471
 472         /* D-n-D coordinates are window-relative, so convert to "world" coordinates
 473          */
 474
 475         double wx;
 476         double wy;
 477
 478         track_canvas->window_to_world (x, y, wx, wy);
 479         //wx += horizontal_adjustment.get_value();
 480         //wy += vertical_adjustment.get_value();
 481
 482         ev.type = GDK_BUTTON_RELEASE;
 483         ev.button.x = wx;
 484         ev.button.y = wy;
 485
 486         frame = event_frame (&ev, 0, &cy);
 487
 488         snap_to (frame);
 489
 490         if ((tvp = trackview_by_y_position (cy)) == 0) {
 491
 492                 /* drop onto canvas background: create new tracks */
 493
 494                 frame = 0;
 495
 496                 if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
 497                         do_import (paths, Editing::ImportDistinctFiles, Editing::ImportAsTrack, SrcBest, frame);
 498                 } else {
 499                         do_embed (paths, Editing::ImportDistinctFiles, ImportAsTrack, frame);
 500                 }
 501
 502         } else if ((tv = dynamic_cast<RouteTimeAxisView*>(tvp)) != 0) {
 503
 504                 /* check that its an audio track, not a bus */
 505
 506                 /* check that its an audio track, not a bus */
 507
 508                 if (tv->get_diskstream()) {
 509                         /* select the track, then embed */
 510                         selection->set (tv);
 511
 512                         if (Profile->get_sae() || Config->get_only_copy_imported_files()) {
 513                                 do_import (paths, Editing::ImportDistinctFiles, Editing::ImportToTrack, SrcBest, frame);
 514                         } else {
 515                                 do_embed (paths, Editing::ImportDistinctFiles, ImportToTrack, frame);
 516                         }
 517                 }
 518         }
 519
 520   out:
 521         context->drag_finish (true, false, time);
 522 }
 523
 524 void
 525 Editor::drop_regions (const RefPtr<Gdk::DragContext>& context,
 526                       int x, int y,
 527                       const SelectionData& data,
 528                       guint info, guint time)
 529 {
 530         const SerializedObjectPointers<boost::shared_ptr<Region> >* sr =
 531                 reinterpret_cast<const SerializedObjectPointers<boost::shared_ptr<Region> > *> (data.get_data());
 532
 533         for (uint32_t i = 0; i < sr->cnt; ++i) {
 534
 535                 boost::shared_ptr<Region> r = sr->data[i];
 536
 537                 insert_region_list_drag (r, x, y);
 538         }
 539
 540         context->drag_finish (true, false, time);
 541 }
 542
 543 void
 544 Editor::drop_routes (const Glib::RefPtr<Gdk::DragContext>& context,
 545                      int x, int y,
 546                      const Gtk::SelectionData& data,
 547                      guint info, guint time) {
 548         const SerializedObjectPointers<boost::shared_ptr<Route> >* sr =
 549                 reinterpret_cast<const SerializedObjectPointers<boost::shared_ptr<Route> > *> (data.get_data());
 550
 551         for (uint32_t i = 0; i < sr->cnt; ++i) {
 552                 boost::shared_ptr<Route> r = sr->data[i];
 553                 insert_route_list_drag (r, x, y);
 554         }
 555
 556         context->drag_finish (true, false, time);
 557 }
 558
 559 void
 560 Editor::maybe_autoscroll (GdkEventMotion* event)
 561 {
 562
 563         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 564         nframes64_t frame = drag_info.current_pointer_frame;
 565         bool startit = false;
 566
 567         autoscroll_y = 0;
 568         autoscroll_x = 0;
 569         if (event->y < canvas_timebars_vsize) {
 570                 autoscroll_y = -1;
 571                 startit = true;
 572         } else if (event->y > canvas_height) {
 573                 autoscroll_y = 1;
 574                 startit = true;
 575         }
 576
 577         if (frame > rightmost_frame) {
 578
 579                 if (rightmost_frame < max_frames) {
 580                         autoscroll_x = 1;
 581                         startit = true;
 582                 }
 583
 584         } else if (frame < leftmost_frame) {
 585                 if (leftmost_frame > 0) {
 586                         autoscroll_x = -1;
 587                         startit = true;
 588                 }
 589
 590         }
 591
 592         if (!allow_vertical_scroll) {
 593                 autoscroll_y = 0;
 594         }
 595
 596         if ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0)) {
 597                 stop_canvas_autoscroll ();
 598         }
 599
 600         if (startit && autoscroll_timeout_tag < 0) {
 601                 start_canvas_autoscroll (autoscroll_x, autoscroll_y);
 602         }
 603
 604         last_autoscroll_x = autoscroll_x;
 605         last_autoscroll_y = autoscroll_y;
 606 }
 607
 608 void
 609 Editor::maybe_autoscroll_horizontally (GdkEventMotion* event)
 610 {
 611         nframes64_t rightmost_frame = leftmost_frame + current_page_frames();
 612         nframes64_t frame = drag_info.current_pointer_frame;
 613         bool startit = false;
 614
 615         autoscroll_y = 0;
 616         autoscroll_x = 0;
 617
 618         if (frame > rightmost_frame) {
 619
 620                 if (rightmost_frame < max_frames) {
 621                         autoscroll_x = 1;
 622                         startit = true;
 623                 }
 624
 625         } else if (frame < leftmost_frame) {
 626                 if (leftmost_frame > 0) {
 627                         autoscroll_x = -1;
 628                         startit = true;
 629                 }
 630
 631         }
 632
 633         if ((autoscroll_x != last_autoscroll_x) || (autoscroll_y != last_autoscroll_y) || (autoscroll_x == 0 && autoscroll_y == 0)) {
 634                 stop_canvas_autoscroll ();
 635         }
 636
 637         if (startit && autoscroll_timeout_tag < 0) {
 638                 start_canvas_autoscroll (autoscroll_x, autoscroll_y);
 639         }
 640
 641         last_autoscroll_x = autoscroll_x;
 642         last_autoscroll_y = autoscroll_y;
 643 }
 644
 645 gint
 646 Editor::_autoscroll_canvas (void *arg)
 647 {
 648         return ((Editor *) arg)->autoscroll_canvas ();
 649 }
 650
 651 bool
 652 Editor::autoscroll_canvas ()
 653 {
 654         nframes64_t new_frame;
 655         nframes64_t limit = max_frames - current_page_frames();
 656         GdkEventMotion ev;
 657         double new_pixel;
 658         double target_pixel;
 659
 660         if (autoscroll_x > 0) {
 661                 autoscroll_x_distance = (unit_to_frame (drag_info.current_pointer_x) - (leftmost_frame + current_page_frames())) / 3;
 662         } else if (autoscroll_x < 0) {
 663                 autoscroll_x_distance = (leftmost_frame - unit_to_frame (drag_info.current_pointer_x)) / 3;
 664
 665         }
 666
 667         if (autoscroll_y > 0) {
 668                 autoscroll_y_distance = (drag_info.current_pointer_y - (get_trackview_group_vertical_offset() + canvas_height)) / 3;
 669         } else if (autoscroll_y < 0) {
 670
 671                 autoscroll_y_distance = (vertical_adjustment.get_value () - drag_info.current_pointer_y) / 3;
 672         }
 673
 674         if (autoscroll_x < 0) {
 675                 if (leftmost_frame < autoscroll_x_distance) {
 676                         new_frame = 0;
 677                 } else {
 678                         new_frame = leftmost_frame - autoscroll_x_distance;
 679                 }
 680         } else if (autoscroll_x > 0) {
 681                 if (leftmost_frame > limit - autoscroll_x_distance) {
 682                         new_frame = limit;
 683                 } else {
 684                         new_frame = leftmost_frame + autoscroll_x_distance;
 685                 }
 686         } else {
 687                 new_frame = leftmost_frame;
 688         }
 689
 690         double vertical_pos = vertical_adjustment.get_value();
 691
 692         if (autoscroll_y < 0) {
 693
 694                 if (vertical_pos < autoscroll_y_distance) {
 695                         new_pixel = 0;
 696                 } else {
 697                         new_pixel = vertical_pos - autoscroll_y_distance;
 698                 }
 699
 700                 target_pixel = drag_info.current_pointer_y - autoscroll_y_distance;
 701                 target_pixel = max (target_pixel, 0.0);
 702
 703         } else if (autoscroll_y > 0) {
 704
 705                 double top_of_bottom_of_canvas = full_canvas_height - canvas_height;
 706
 707                 if (vertical_pos > full_canvas_height - autoscroll_y_distance) {
 708                         new_pixel = full_canvas_height;
 709                 } else {
 710                         new_pixel = vertical_pos + autoscroll_y_distance;
 711                 }
 712
 713                 new_pixel = min (top_of_bottom_of_canvas, new_pixel);
 714
 715                 target_pixel = drag_info.current_pointer_y + autoscroll_y_distance;
 716
 717                 /* don't move to the full canvas height because the item will be invisible
 718                    (its top edge will line up with the bottom of the visible canvas.
 719                 */
 720
 721                 target_pixel = min (target_pixel, full_canvas_height - 10);
 722
 723         } else {
 724                 target_pixel = drag_info.current_pointer_y;
 725                 new_pixel = vertical_pos;
 726         }
 727
 728         if ((new_frame == 0 || new_frame == limit) && (new_pixel == 0 || new_pixel == DBL_MAX)) {
 729                 /* we are done */
 730                 return false;
 731         }
 732
 733         if (new_frame != leftmost_frame) {
 734                 reset_x_origin (new_frame);
 735         }
 736
 737         /* fake an event. */
 738
 739         Glib::RefPtr<Gdk::Window> canvas_window = const_cast<Editor*>(this)->track_canvas->get_window();
 740         gint x, y;
 741         Gdk::ModifierType mask;
 742         canvas_window->get_pointer (x, y, mask);
 743         ev.type = GDK_MOTION_NOTIFY;
 744         ev.state &= Gdk::BUTTON1_MASK;
 745         ev.x = x;
 746         ev.y = y;
 747
 748         motion_handler (drag_info.item, (GdkEvent*) &ev, drag_info.item_type, true);
 749
 750         vertical_adjustment.set_value (new_pixel);
 751
 752         autoscroll_cnt++;
 753
 754         if (autoscroll_cnt == 1) {
 755
 756                 /* connect the timeout so that we get called repeatedly */
 757
 758                 autoscroll_timeout_tag = g_idle_add ( _autoscroll_canvas, this);
 759                 return false;
 760
 761         }
 762
 763         return true;
 764 }
 765
 766 void
 767 Editor::start_canvas_autoscroll (int dx, int dy)
 768 {
 769         if (!session || autoscroll_active) {
 770                 return;
 771         }
 772
 773         stop_canvas_autoscroll ();
 774
 775         autoscroll_active = true;
 776         autoscroll_x = dx;
 777         autoscroll_y = dy;
 778         autoscroll_x_distance = (nframes64_t) floor (current_page_frames()/50.0);
 779         autoscroll_y_distance = fabs (dy * 5); /* pixels */
 780         autoscroll_cnt = 0;
 781
 782         /* do it right now, which will start the repeated callbacks */
 783
 784         autoscroll_canvas ();
 785 }
 786
 787 void
 788 Editor::stop_canvas_autoscroll ()
 789 {
 790
 791         if (autoscroll_timeout_tag >= 0) {
 792                 g_source_remove (autoscroll_timeout_tag);
 793                 autoscroll_timeout_tag = -1;
 794         }
 795
 796         autoscroll_active = false;
 797 }
 798
 799 bool
 800 Editor::left_track_canvas (GdkEventCrossing *ev)
 801 {
 802         set_entered_track (0);
 803         set_entered_regionview (0);
 804         reset_canvas_action_sensitivity (false);
 805         return false;
 806 }
 807
 808 bool
 809 Editor::entered_track_canvas (GdkEventCrossing *ev)
 810 {
 811         reset_canvas_action_sensitivity (true);
 812         return FALSE;
 813 }
 814
 815 void
 816 Editor::tie_vertical_scrolling ()
 817 {
 818         scroll_canvas_vertically ();
 819
 820         /* this will do an immediate redraw */
 821
 822         controls_layout.get_vadjustment()->set_value (vertical_adjustment.get_value());
 823 }
 824
 825 void
 826 Editor::scroll_canvas_horizontally ()
 827 {
 828         nframes64_t time_origin = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
 829
 830         if (time_origin != leftmost_frame) {
 831                 canvas_scroll_to (time_origin);
 832         }
 833
 834         /* horizontal scrolling only */
 835         double x1, x2, y1, y2, x_delta;
 836
 837         _master_group->get_bounds(x1, y1, x2, y2);
 838         x_delta = x1 + horizontal_adjustment.get_value();
 839
 840         _master_group->move (-x_delta, 0);
 841         timebar_group->move (-x_delta, 0);
 842         cursor_group->move (-x_delta, 0);
 843         update_fixed_rulers ();
 844         redisplay_tempo (true);
 845 }
 846
 847 void
 848 Editor::scroll_canvas_vertically ()
 849 {
 850         /* vertical scrolling only */
 851         double y_delta;
 852
 853         y_delta = last_trackview_group_vertical_offset - get_trackview_group_vertical_offset ();
 854
 855         _trackview_group->move (0, y_delta);
 856
 857         for (TrackViewList::iterator i = track_views.begin(); i != track_views.end(); ++i) {
 858                 (*i)->clip_to_viewport ();
 859         }
 860         last_trackview_group_vertical_offset = get_trackview_group_vertical_offset ();
 861         /* required to keep the controls_layout in lock step with the canvas group */
 862         track_canvas->update_now ();
 863 }
 864
 865 void
 866 Editor::canvas_horizontally_scrolled ()
 867 {
 868         nframes64_t time_origin = (nframes64_t) floor (horizontal_adjustment.get_value() * frames_per_unit);
 869
 870         if (time_origin != leftmost_frame) {
 871                 canvas_scroll_to (time_origin);
 872         }
 873         redisplay_tempo (true);
 874 }
 875
 876 void
 877 Editor::canvas_scroll_to (nframes64_t time_origin)
 878 {
 879         leftmost_frame = time_origin;
 880         nframes64_t rightmost_frame = leftmost_frame + current_page_frames ();
 881
 882         if (rightmost_frame > last_canvas_frame) {
 883                 last_canvas_frame = rightmost_frame;
 884                 //reset_scrolling_region ();
 885         }
 886 }
 887
 888 void
 889 Editor::color_handler()
 890 {
 891         playhead_cursor->canvas_item.property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_PlayHead.get();
 892         verbose_canvas_cursor->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_VerboseCanvasCursor.get();
 893
 894         meter_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MeterBar.get();
 895         meter_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 896
 897         tempo_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TempoBar.get();
 898         tempo_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 899
 900         marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBar.get();
 901         marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 902
 903         cd_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_CDMarkerBar.get();
 904         cd_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 905
 906         range_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeMarkerBar.get();
 907         range_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 908
 909         transport_marker_bar->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportMarkerBar.get();
 910         transport_marker_bar->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerBarSeparator.get();
 911
 912         cd_marker_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 913         cd_marker_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 914
 915         range_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 916         range_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragBarRect.get();
 917
 918         transport_bar_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 919         transport_bar_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportDragRect.get();
 920
 921         marker_drag_line->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_MarkerDragLine.get();
 922
 923         range_marker_drag_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
 924         range_marker_drag_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RangeDragRect.get();
 925
 926         transport_loop_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 927         transport_loop_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportLoopRect.get();
 928
 929         transport_punch_range_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 930         transport_punch_range_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TransportPunchRect.get();
 931
 932         transport_punchin_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 933         transport_punchout_line->property_color_rgba() = ARDOUR_UI::config()->canvasvar_PunchLine.get();
 934
 935         zoom_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 936         zoom_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_ZoomRect.get();
 937
 938         rubberband_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 939         rubberband_rect->property_fill_color_rgba() = (guint32) ARDOUR_UI::config()->canvasvar_RubberBandRect.get();
 940
 941         location_marker_color = ARDOUR_UI::config()->canvasvar_LocationMarker.get();
 942         location_range_color = ARDOUR_UI::config()->canvasvar_LocationRange.get();
 943         location_cd_marker_color = ARDOUR_UI::config()->canvasvar_LocationCDMarker.get();
 944         location_loop_color = ARDOUR_UI::config()->canvasvar_LocationLoop.get();
 945         location_punch_color = ARDOUR_UI::config()->canvasvar_LocationPunch.get();
 946
 947         refresh_location_display ();
 948 /*
 949         redisplay_tempo (true);
 950
 951         if (session)
 952                 session->tempo_map().apply_with_metrics (*this, &Editor::draw_metric_marks); // redraw metric markers
 953 */
 954 }
 955
 956 void
 957 Editor::flush_canvas ()
 958 {
 959         if (is_mapped()) {
 960                 track_canvas->update_now ();
 961                 // gdk_window_process_updates (GTK_LAYOUT(track_canvas->gobj())->bin_window, true);
 962         }
 963 }