gtk2_ardour/audio_streamview.cc

   1 /*
   2     Copyright (C) 2001, 2006 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 #include <cmath>
  20 #include <cassert>
  21
  22 #include <gtkmm.h>
  23
  24 #include <gtkmm2ext/gtk_ui.h>
  25
  26 #include <ardour/audioplaylist.h>
  27 #include <ardour/audioregion.h>
  28 #include <ardour/audiofilesource.h>
  29 #include <ardour/audio_diskstream.h>
  30 #include <ardour/audio_track.h>
  31 #include <ardour/playlist_templates.h>
  32 #include <ardour/source.h>
  33 #include <ardour/region_factory.h>
  34
  35 #include "audio_streamview.h"
  36 #include "audio_region_view.h"
  37 #include "tape_region_view.h"
  38 #include "audio_time_axis.h"
  39 #include "canvas-waveview.h"
  40 #include "canvas-simplerect.h"
  41 #include "region_selection.h"
  42 #include "selection.h"
  43 #include "public_editor.h"
  44 #include "ardour_ui.h"
  45 #include "crossfade_view.h"
  46 #include "rgb_macros.h"
  47 #include "gui_thread.h"
  48 #include "utils.h"
  49 #include "color.h"
  50
  51 using namespace ARDOUR;
  52 using namespace PBD;
  53 using namespace Editing;
  54
  55 AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
  56         : StreamView (tv)
  57 {
  58         crossfades_visible = true;
  59
  60         if (tv.is_track())
  61                 stream_base_color = color_map[cAudioTrackBase];
  62         else
  63                 stream_base_color = color_map[cAudioBusBase];
  64
  65         canvas_rect->property_fill_color_rgba() = stream_base_color;
  66         canvas_rect->property_outline_color_rgba() = color_map[cAudioTrackOutline];
  67
  68         _amplitude_above_axis = 1.0;
  69
  70         use_rec_regions = tv.editor.show_waveforms_recording ();
  71 }
  72
  73 AudioStreamView::~AudioStreamView ()
  74 {
  75 }
  76
  77 int
  78 AudioStreamView::set_height (gdouble h)
  79 {
  80         /* limit the values to something sane-ish */
  81         if (h < 10.0 || h > 1000.0) {
  82                 return -1;
  83         }
  84
  85         StreamView::set_height(h);
  86
  87         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
  88                 (*i)->set_height (h);
  89         }
  90
  91         return 0;
  92 }
  93
  94 int
  95 AudioStreamView::set_samples_per_unit (gdouble spp)
  96 {
  97         StreamView::set_samples_per_unit(spp);
  98
  99         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 100                 (*xi)->set_samples_per_unit (spp);
 101         }
 102
 103         return 0;
 104 }
 105
 106 int
 107 AudioStreamView::set_amplitude_above_axis (gdouble app)
 108 {
 109         RegionViewList::iterator i;
 110
 111         if (app < 1.0) {
 112                 return -1;
 113         }
 114
 115         _amplitude_above_axis = app;
 116
 117         for (i = region_views.begin(); i != region_views.end(); ++i) {
 118                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 119                 if (arv)
 120                         arv->set_amplitude_above_axis (app);
 121         }
 122
 123         return 0;
 124 }
 125
 126 void
 127 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves)
 128 {
 129         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_region_view), r));
 130
 131         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 132
 133         if (region == 0) {
 134                 return;
 135         }
 136
 137         AudioRegionView *region_view;
 138         list<RegionView *>::iterator i;
 139
 140         for (i = region_views.begin(); i != region_views.end(); ++i) {
 141                 if ((*i)->region() == r) {
 142
 143                         /* great. we already have a AudioRegionView for this Region. use it again. */
 144
 145                         (*i)->set_valid (true);
 146                         return;
 147                 }
 148         }
 149
 150         switch (_trackview.audio_track()->mode()) {
 151         case Normal:
 152                 region_view = new AudioRegionView (canvas_group, _trackview, region,
 153                                                    _samples_per_unit, region_color);
 154                 break;
 155         case Destructive:
 156                 region_view = new TapeAudioRegionView (canvas_group, _trackview, region,
 157                                                        _samples_per_unit, region_color);
 158                 break;
 159         }
 160
 161         region_view->init (region_color, wait_for_waves);
 162         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 163         region_views.push_front (region_view);
 164
 165         /* follow global waveform setting */
 166
 167         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 168
 169         /* catch regionview going away */
 170
 171         region->GoingAway.connect (bind (mem_fun (*this, &AudioStreamView::remove_region_view), region));
 172
 173         RegionViewAdded (region_view);
 174 }
 175
 176 void
 177 AudioStreamView::remove_region_view (boost::shared_ptr<Region> r)
 178 {
 179         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), r));
 180
 181         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 182                 list<CrossfadeView*>::iterator tmp;
 183
 184                 tmp = i;
 185                 ++tmp;
 186
 187                 boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 188                 if (ar && (*i)->crossfade.involves (ar)) {
 189                         delete *i;
 190                         crossfade_views.erase (i);
 191                 }
 192
 193                 i = tmp;
 194         }
 195
 196         StreamView::remove_region_view(r);
 197 }
 198
 199 void
 200 AudioStreamView::undisplay_diskstream ()
 201 {
 202         StreamView::undisplay_diskstream();
 203
 204         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 205                 delete *i;
 206         }
 207
 208         crossfade_views.clear ();
 209 }
 210
 211 void
 212 AudioStreamView::playlist_modified ()
 213 {
 214         ENSURE_GUI_THREAD (mem_fun (*this, &AudioStreamView::playlist_modified));
 215
 216         StreamView::playlist_modified();
 217
 218         /* if the playlist is modified, make sure xfades are on top and all the regionviews are stacked
 219            correctly.
 220         */
 221
 222         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 223                 (*i)->get_canvas_group()->raise_to_top();
 224         }
 225 }
 226
 227 void
 228 AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 229 {
 230         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
 231
 232         StreamView::playlist_changed(ds);
 233
 234         AudioPlaylist* apl = dynamic_cast<AudioPlaylist*>(ds->playlist());
 235         if (apl)
 236                 playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
 237 }
 238
 239 void
 240 AudioStreamView::add_crossfade (Crossfade *crossfade)
 241 {
 242         AudioRegionView* lview = 0;
 243         AudioRegionView* rview = 0;
 244
 245         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade), crossfade));
 246
 247         /* first see if we already have a CrossfadeView for this Crossfade */
 248
 249         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 250                 if (&(*i)->crossfade == crossfade) {
 251                         if (!crossfades_visible) {
 252                                 (*i)->hide();
 253                         } else {
 254                                 (*i)->show ();
 255                         }
 256                         (*i)->set_valid (true);
 257                         return;
 258                 }
 259         }
 260
 261         /* create a new one */
 262
 263         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 264                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 265
 266                 if (!lview && arv && (arv->region() == crossfade->out())) {
 267                         lview = arv;
 268                 }
 269                 if (!rview && arv && (arv->region() == crossfade->in())) {
 270                         rview = arv;
 271                 }
 272         }
 273
 274         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 275                                                _trackview,
 276                                                *crossfade,
 277                                                _samples_per_unit,
 278                                                region_color,
 279                                                *lview, *rview);
 280
 281         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 282         crossfade_views.push_back (cv);
 283
 284         if (!crossfades_visible) {
 285                 cv->hide ();
 286         }
 287 }
 288
 289 void
 290 AudioStreamView::remove_crossfade (Crossfade *xfade)
 291 {
 292         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), xfade));
 293
 294         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 295                 if (&(*i)->crossfade == xfade) {
 296                         delete *i;
 297                         crossfade_views.erase (i);
 298                         break;
 299                 }
 300         }
 301 }
 302
 303 void
 304 AudioStreamView::redisplay_diskstream ()
 305 {
 306         list<RegionView *>::iterator i, tmp;
 307         list<CrossfadeView*>::iterator xi, tmpx;
 308
 309
 310         for (i = region_views.begin(); i != region_views.end(); ++i) {
 311                 (*i)->set_valid (false);
 312         }
 313
 314         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 315                 (*xi)->set_valid (false);
 316                 if ((*xi)->visible()) {
 317                         (*xi)->show ();
 318                 }
 319         }
 320
 321         if (_trackview.is_audio_track()) {
 322                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 323                 AudioPlaylist* apl = dynamic_cast<AudioPlaylist*>(_trackview.get_diskstream()->playlist());
 324                 if (apl)
 325                         apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
 326         }
 327
 328         for (i = region_views.begin(); i != region_views.end(); ) {
 329                 tmp = i;
 330                 tmp++;
 331
 332                 if (!(*i)->is_valid()) {
 333                         delete *i;
 334                         region_views.erase (i);
 335                 }
 336
 337                 i = tmp;
 338         }
 339
 340         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 341                 tmpx = xi;
 342                 tmpx++;
 343
 344                 if (!(*xi)->valid()) {
 345                         delete *xi;
 346                         crossfade_views.erase (xi);
 347                 }
 348
 349                 xi = tmpx;
 350         }
 351
 352         /* now fix layering */
 353
 354         playlist_modified ();
 355 }
 356
 357 void
 358 AudioStreamView::set_show_waveforms (bool yn)
 359 {
 360         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 361                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 362                 if (arv)
 363                         arv->set_waveform_visible (yn);
 364         }
 365 }
 366
 367 void
 368 AudioStreamView::set_waveform_shape (WaveformShape shape)
 369 {
 370         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 371                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 372                 if (arv)
 373                         arv->set_waveform_shape (shape);
 374         }
 375 }
 376
 377 void
 378 AudioStreamView::setup_rec_box ()
 379 {
 380         // cerr << _trackview.name() << " streamview SRB\n";
 381
 382         if (_trackview.session().transport_rolling()) {
 383
 384                 // cerr << "\trolling\n";
 385
 386                 if (!rec_active &&
 387                     _trackview.session().record_status() == Session::Recording &&
 388                     _trackview.get_diskstream()->record_enabled()) {
 389
 390                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 391
 392                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 393
 394                                 SourceList sources;
 395
 396                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 397                                         (*prc).disconnect();
 398                                 }
 399                                 rec_data_ready_connections.clear();
 400
 401                                 // FIXME
 402                                 boost::shared_ptr<AudioDiskstream> ads = boost::dynamic_pointer_cast<AudioDiskstream>(_trackview.get_diskstream());
 403                                 assert(ads);
 404
 405                                 for (uint32_t n=0; n < ads->n_channels().get(DataType::AUDIO); ++n) {
 406                                         boost::shared_ptr<AudioFileSource> src = boost::static_pointer_cast<AudioFileSource> (ads->write_source (n));
 407                                         if (src) {
 408                                                 sources.push_back (src);
 409                                                 rec_data_ready_connections.push_back (src->PeakRangeReady.connect (bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), src)));
 410                                         }
 411                                 }
 412
 413                                 // handle multi
 414
 415                                 jack_nframes_t start = 0;
 416                                 if (rec_regions.size() > 0) {
 417                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 418                                 }
 419
 420                                 boost::shared_ptr<AudioRegion> region (boost::dynamic_pointer_cast<AudioRegion>
 421                                                                        (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 422                                 region->set_position (_trackview.session().transport_frame(), this);
 423                                 rec_regions.push_back (region);
 424                                 /* catch it if it goes away */
 425                                 region->GoingAway.connect (bind (mem_fun (*this, &AudioStreamView::remove_rec_region), region));
 426
 427                                 /* we add the region later */
 428                         }
 429
 430                         /* start a new rec box */
 431
 432                         AudioTrack* at;
 433
 434                         at = _trackview.audio_track(); /* we know what it is already */
 435                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 436                         jack_nframes_t frame_pos = ds->current_capture_start ();
 437                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 438                         gdouble xend;
 439                         uint32_t fill_color;
 440
 441                         switch (_trackview.audio_track()->mode()) {
 442                         case Normal:
 443                                 xend = xstart;
 444                                 fill_color = color_map[cRecordingRectFill];
 445                                 break;
 446
 447                         case Destructive:
 448                                 xend = xstart + 2;
 449                                 fill_color = color_map[cRecordingRectFill];
 450                                 /* make the recording rect translucent to allow
 451                                    the user to see the peak data coming in, etc.
 452                                 */
 453                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 454                                 break;
 455                         }
 456
 457                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 458                         rec_rect->property_x1() = xstart;
 459                         rec_rect->property_y1() = 1.0;
 460                         rec_rect->property_x2() = xend;
 461                         rec_rect->property_y2() = (double) _trackview.height - 1;
 462                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 463                         rec_rect->property_fill_color_rgba() = fill_color;
 464
 465                         RecBoxInfo recbox;
 466                         recbox.rectangle = rec_rect;
 467                         recbox.start = _trackview.session().transport_frame();
 468                         recbox.length = 0;
 469
 470                         rec_rects.push_back (recbox);
 471
 472                         screen_update_connection.disconnect();
 473                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));
 474                         rec_updating = true;
 475                         rec_active = true;
 476
 477                 } else if (rec_active &&
 478                            (_trackview.session().record_status() != Session::Recording ||
 479                             !_trackview.get_diskstream()->record_enabled())) {
 480
 481                         screen_update_connection.disconnect();
 482                         rec_active = false;
 483                         rec_updating = false;
 484
 485                 }
 486
 487         } else {
 488
 489                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 490
 491                 if (!rec_rects.empty() || !rec_regions.empty()) {
 492
 493                         /* disconnect rapid update */
 494                         screen_update_connection.disconnect();
 495
 496                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 497                                 (*prc).disconnect();
 498                         }
 499                         rec_data_ready_connections.clear();
 500
 501                         rec_updating = false;
 502                         rec_active = false;
 503                         last_rec_data_frame = 0;
 504
 505                         /* remove temp regions */
 506
 507                         rec_regions.clear();
 508
 509                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 510
 511                         /* transport stopped, clear boxes */
 512                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 513                                 RecBoxInfo &rect = (*iter);
 514                                 delete rect.rectangle;
 515                         }
 516
 517                         rec_rects.clear();
 518
 519                 }
 520         }
 521 }
 522
 523 void
 524 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 525 {
 526         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 527                 ((*i)->*pmf) ();
 528         }
 529 }
 530
 531 void
 532 AudioStreamView::rec_peak_range_ready (jack_nframes_t start, jack_nframes_t cnt, boost::shared_ptr<Source> src)
 533 {
 534         // this is called from the peak building thread
 535
 536         ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, src));
 537
 538         if (rec_data_ready_map.size() == 0 || start+cnt > last_rec_data_frame) {
 539                 last_rec_data_frame = start + cnt;
 540         }
 541
 542         rec_data_ready_map[src] = true;
 543
 544         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().get(DataType::AUDIO)) {
 545                 this->update_rec_regions ();
 546                 rec_data_ready_map.clear();
 547         }
 548 }
 549
 550 void
 551 AudioStreamView::update_rec_regions ()
 552 {
 553         if (use_rec_regions) {
 554
 555                 uint32_t n = 0;
 556
 557                 for (list<boost::shared_ptr<Region> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 558
 559                         list<boost::shared_ptr<Region> >::iterator tmp;
 560
 561                         tmp = iter;
 562                         ++tmp;
 563
 564                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 565                                 /* rect already hidden, this region is done */
 566                                 iter = tmp;
 567                                 continue;
 568                         }
 569
 570                         // FIXME
 571                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(*iter);
 572                         assert(region);
 573
 574                         jack_nframes_t origlen = region->length();
 575
 576                         if (region == rec_regions.back() && rec_active) {
 577
 578                                 if (last_rec_data_frame > region->start()) {
 579
 580                                         jack_nframes_t nlen = last_rec_data_frame - region->start();
 581
 582                                         if (nlen != region->length()) {
 583
 584                                                 region->freeze ();
 585                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 586                                                 region->set_length (nlen, this);
 587                                                 region->thaw ("updated");
 588
 589                                                 if (origlen == 1) {
 590                                                         /* our special initial length */
 591                                                         add_region_view_internal (region, false);
 592                                                 }
 593
 594                                                 /* also update rect */
 595                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 596                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 597                                                 rect->property_x2() = xend;
 598                                         }
 599                                 }
 600
 601                         } else {
 602
 603                                 jack_nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 604
 605                                 if (nlen != region->length()) {
 606
 607                                         if (region->source(0)->length() >= region->start() + nlen) {
 608
 609                                                 region->freeze ();
 610                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 611                                                 region->set_length (nlen, this);
 612                                                 region->thaw ("updated");
 613
 614                                                 if (origlen == 1) {
 615                                                         /* our special initial length */
 616                                                         add_region_view_internal (region, false);
 617                                                 }
 618
 619                                                 /* also hide rect */
 620                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 621                                                 rect->hide();
 622
 623                                         }
 624                                 }
 625                         }
 626
 627                         iter = tmp;
 628                 }
 629         }
 630 }
 631
 632 void
 633 AudioStreamView::show_all_xfades ()
 634 {
 635         foreach_crossfadeview (&CrossfadeView::show);
 636         crossfades_visible = true;
 637 }
 638
 639 void
 640 AudioStreamView::hide_all_xfades ()
 641 {
 642         foreach_crossfadeview (&CrossfadeView::hide);
 643         crossfades_visible = false;
 644 }
 645
 646 void
 647 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 648 {
 649         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 650                 if ((*i)->crossfade.involves (rv.audio_region())) {
 651                         (*i)->fake_hide ();
 652                 }
 653         }
 654 }
 655
 656 void
 657 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 658 {
 659         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 660                 if ((*i)->crossfade.involves (rv.audio_region()) && (*i)->visible()) {
 661                         (*i)->show ();
 662                 }
 663         }
 664 }
 665
 666 void
 667 AudioStreamView::color_handler (ColorID id, uint32_t val)
 668 {
 669         switch (id) {
 670         case cAudioTrackBase:
 671                 if (_trackview.is_track()) {
 672                         canvas_rect->property_fill_color_rgba() = val;
 673                 }
 674                 break;
 675         case cAudioBusBase:
 676                 if (!_trackview.is_track()) {
 677                         canvas_rect->property_fill_color_rgba() = val;
 678                 }
 679                 break;
 680         case cAudioTrackOutline:
 681                 canvas_rect->property_outline_color_rgba() = val;
 682                 break;
 683
 684         default:
 685                 break;
 686         }
 687 }
 688