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/audiosource.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
  34 #include "audio_streamview.h"
  35 #include "audio_regionview.h"
  36 #include "taperegionview.h"
  37 #include "audio_time_axis.h"
  38 #include "canvas-waveview.h"
  39 #include "canvas-simplerect.h"
  40 #include "region_selection.h"
  41 #include "selection.h"
  42 #include "public_editor.h"
  43 #include "ardour_ui.h"
  44 #include "crossfade_view.h"
  45 #include "rgb_macros.h"
  46 #include "gui_thread.h"
  47 #include "utils.h"
  48 #include "color.h"
  49
  50 using namespace ARDOUR;
  51 using namespace PBD;
  52 using namespace Editing;
  53
  54 AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
  55         : StreamView (tv)
  56 {
  57         region_color = _trackview.color();
  58         crossfades_visible = true;
  59
  60         if (tv.is_audio_track())
  61                 stream_base_color = color_map[cAudioTrackBase];
  62         else
  63                 stream_base_color = color_map[cAudioBusBase];
  64
  65         /* set_position() will position the group */
  66
  67         canvas_group = new ArdourCanvas::Group(*_trackview.canvas_display);
  68
  69         canvas_rect = new ArdourCanvas::SimpleRect (*canvas_group);
  70         canvas_rect->property_x1() = 0.0;
  71         canvas_rect->property_y1() = 0.0;
  72         canvas_rect->property_x2() = 1000000.0;
  73         canvas_rect->property_y2() = (double) tv.height;
  74         canvas_rect->property_outline_color_rgba() = color_map[cAudioTrackOutline];
  75         canvas_rect->property_outline_what() = (guint32) (0x1|0x2|0x8);  // outline ends and bottom
  76         canvas_rect->property_fill_color_rgba() = stream_base_color;
  77
  78         canvas_rect->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
  79
  80         _samples_per_unit = _trackview.editor.get_current_zoom();
  81         _amplitude_above_axis = 1.0;
  82
  83         if (_trackview.is_audio_track()) {
  84                 _trackview.audio_track()->DiskstreamChanged.connect (mem_fun (*this, &AudioStreamView::diskstream_changed));
  85                 _trackview.session().TransportStateChange.connect (mem_fun (*this, &AudioStreamView::transport_changed));
  86                 _trackview.get_diskstream()->RecordEnableChanged.connect (mem_fun (*this, &AudioStreamView::rec_enable_changed));
  87                 _trackview.session().RecordStateChanged.connect (mem_fun (*this, &AudioStreamView::sess_rec_enable_changed));
  88         }
  89
  90         rec_updating = false;
  91         rec_active = false;
  92         use_rec_regions = tv.editor.show_waveforms_recording ();
  93         last_rec_peak_frame = 0;
  94
  95         ColorChanged.connect (mem_fun (*this, &AudioStreamView::color_handler));
  96 }
  97
  98 AudioStreamView::~AudioStreamView ()
  99 {
 100         undisplay_diskstream ();
 101         delete canvas_group;
 102 }
 103
 104 int
 105 AudioStreamView::set_height (gdouble h)
 106 {
 107         /* limit the values to something sane-ish */
 108         if (h < 10.0 || h > 1000.0) {
 109                 return -1;
 110         }
 111
 112         StreamView::set_height(h);
 113
 114         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 115                 (*i)->set_height (h);
 116         }
 117
 118         return 0;
 119 }
 120
 121 int
 122 AudioStreamView::set_samples_per_unit (gdouble spp)
 123 {
 124         StreamView::set_samples_per_unit(spp);
 125
 126         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 127                 (*xi)->set_samples_per_unit (spp);
 128         }
 129
 130         return 0;
 131 }
 132
 133 int
 134 AudioStreamView::set_amplitude_above_axis (gdouble app)
 135
 136 {
 137         RegionViewList::iterator i;
 138
 139         if (app < 1.0) {
 140                 return -1;
 141         }
 142
 143         _amplitude_above_axis = app;
 144
 145         for (i = region_views.begin(); i != region_views.end(); ++i) {
 146                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 147                 if (arv)
 148                         arv->set_amplitude_above_axis (app);
 149         }
 150
 151         return 0;
 152 }
 153
 154 void
 155 AudioStreamView::add_region_view_internal (Region *r, bool wait_for_waves)
 156 {
 157         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_region_view), r));
 158
 159         AudioRegion* region = dynamic_cast<AudioRegion*> (r);
 160
 161         if (region == 0) {
 162                 return;
 163         }
 164
 165         AudioRegionView *region_view;
 166         list<RegionView *>::iterator i;
 167
 168         for (i = region_views.begin(); i != region_views.end(); ++i) {
 169                 if (&(*i)->region() == r) {
 170
 171                         /* great. we already have a AudioRegionView for this Region. use it again. */
 172
 173                         (*i)->set_valid (true);
 174                         return;
 175                 }
 176         }
 177
 178         switch (_trackview.audio_track()->mode()) {
 179         case Normal:
 180                 region_view = new AudioRegionView (canvas_group, _trackview, *region,
 181                                                    _samples_per_unit, region_color);
 182                 break;
 183         case Destructive:
 184                 region_view = new TapeAudioRegionView (canvas_group, _trackview, *region,
 185                                                        _samples_per_unit, region_color);
 186                 break;
 187         }
 188
 189         region_view->init (region_color, wait_for_waves);
 190         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 191         region_views.push_front (region_view);
 192
 193         /* follow global waveform setting */
 194
 195         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 196
 197         /* catch regionview going away */
 198
 199         region->GoingAway.connect (mem_fun (*this, &AudioStreamView::remove_region_view));
 200
 201         RegionViewAdded (region_view);
 202 }
 203
 204 void
 205 AudioStreamView::remove_region_view (Region *r)
 206 {
 207         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), r));
 208
 209         StreamView::remove_region_view(r);
 210
 211         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 212                 list<CrossfadeView*>::iterator tmp;
 213
 214                 tmp = i;
 215                 ++tmp;
 216
 217                 AudioRegion* ar = dynamic_cast<AudioRegion*>(r);
 218                 if (ar && (*i)->crossfade.involves (*ar)) {
 219                         delete *i;
 220                         crossfade_views.erase (i);
 221                 }
 222
 223                 i = tmp;
 224         }
 225 }
 226
 227 void
 228 AudioStreamView::undisplay_diskstream ()
 229 {
 230         StreamView::undisplay_diskstream();
 231
 232         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 233                 delete *i;
 234         }
 235
 236         crossfade_views.clear ();
 237 }
 238
 239 void
 240 AudioStreamView::playlist_modified ()
 241 {
 242         ENSURE_GUI_THREAD (mem_fun (*this, &AudioStreamView::playlist_modified));
 243
 244         StreamView::playlist_modified();
 245
 246         /* if the playlist is modified, make sure xfades are on top and all the regionviews are stacked
 247            correctly.
 248         */
 249
 250         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 251                 (*i)->get_canvas_group()->raise_to_top();
 252         }
 253 }
 254
 255 void
 256 AudioStreamView::playlist_changed (Diskstream *ds)
 257 {
 258         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
 259
 260         StreamView::playlist_changed(ds);
 261
 262         AudioPlaylist* apl = dynamic_cast<AudioPlaylist*>(ds->playlist());
 263         if (apl)
 264                 playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
 265 }
 266
 267 void
 268 AudioStreamView::add_crossfade (Crossfade *crossfade)
 269 {
 270         AudioRegionView* lview = 0;
 271         AudioRegionView* rview = 0;
 272
 273         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade), crossfade));
 274
 275         /* first see if we already have a CrossfadeView for this Crossfade */
 276
 277         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 278                 if (&(*i)->crossfade == crossfade) {
 279                         if (!crossfades_visible) {
 280                                 (*i)->hide();
 281                         } else {
 282                                 (*i)->show ();
 283                         }
 284                         (*i)->set_valid (true);
 285                         return;
 286                 }
 287         }
 288
 289         /* create a new one */
 290
 291         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 292                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 293
 294                 if (!lview && arv && &(arv->region()) == &crossfade->out()) {
 295                         lview = arv;
 296                 }
 297                 if (!rview && arv && &(arv->region()) == &crossfade->in()) {
 298                         rview = arv;
 299                 }
 300         }
 301
 302         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 303                                                _trackview,
 304                                                *crossfade,
 305                                                _samples_per_unit,
 306                                                region_color,
 307                                                *lview, *rview);
 308
 309         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 310         crossfade_views.push_back (cv);
 311
 312         if (!crossfades_visible) {
 313                 cv->hide ();
 314         }
 315 }
 316
 317 void
 318 AudioStreamView::remove_crossfade (Crossfade *xfade)
 319 {
 320         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), xfade));
 321
 322         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 323                 if (&(*i)->crossfade == xfade) {
 324                         delete *i;
 325                         crossfade_views.erase (i);
 326                         break;
 327                 }
 328         }
 329 }
 330
 331 void
 332 AudioStreamView::redisplay_diskstream ()
 333 {
 334         list<RegionView *>::iterator i, tmp;
 335         list<CrossfadeView*>::iterator xi, tmpx;
 336
 337
 338         for (i = region_views.begin(); i != region_views.end(); ++i) {
 339                 (*i)->set_valid (false);
 340         }
 341
 342         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 343                 (*xi)->set_valid (false);
 344                 if ((*xi)->visible()) {
 345                         (*xi)->show ();
 346                 }
 347         }
 348
 349         if (_trackview.is_audio_track()) {
 350                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 351                 AudioPlaylist* apl = dynamic_cast<AudioPlaylist*>(_trackview.get_diskstream()->playlist());
 352                 if (apl)
 353                         apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
 354         }
 355
 356         for (i = region_views.begin(); i != region_views.end(); ) {
 357                 tmp = i;
 358                 tmp++;
 359
 360                 if (!(*i)->is_valid()) {
 361                         delete *i;
 362                         region_views.erase (i);
 363                 }
 364
 365                 i = tmp;
 366         }
 367
 368         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 369                 tmpx = xi;
 370                 tmpx++;
 371
 372                 if (!(*xi)->valid()) {
 373                         delete *xi;
 374                         crossfade_views.erase (xi);
 375                 }
 376
 377                 xi = tmpx;
 378         }
 379
 380         /* now fix layering */
 381
 382         playlist_modified ();
 383 }
 384
 385 void
 386 AudioStreamView::set_show_waveforms (bool yn)
 387 {
 388         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 389                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 390                 if (arv)
 391                         arv->set_waveform_visible (yn);
 392         }
 393 }
 394
 395 void
 396 AudioStreamView::set_waveform_shape (WaveformShape shape)
 397 {
 398         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 399                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 400                 if (arv)
 401                         arv->set_waveform_shape (shape);
 402         }
 403 }
 404
 405 void
 406 AudioStreamView::setup_rec_box ()
 407 {
 408         // cerr << _trackview.name() << " streamview SRB\n";
 409
 410         if (_trackview.session().transport_rolling()) {
 411
 412                 // cerr << "\trolling\n";
 413
 414                 if (!rec_active &&
 415                     _trackview.session().record_status() == Session::Recording &&
 416                     _trackview.get_diskstream()->record_enabled()) {
 417
 418                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 419
 420                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 421
 422                                 AudioRegion::SourceList sources;
 423
 424                                 for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 425                                         (*prc).disconnect();
 426                                 }
 427                                 peak_ready_connections.clear();
 428
 429                                 // FIXME
 430                                 AudioDiskstream* ads = dynamic_cast<AudioDiskstream*>(_trackview.get_diskstream());
 431                                 assert(ads);
 432
 433                                 for (uint32_t n=0; n < ads->n_channels(); ++n) {
 434                                         AudioSource *src = (AudioSource *) ads->write_source (n);
 435                                         if (src) {
 436                                                 sources.push_back (src);
 437                                                 peak_ready_connections.push_back (src->PeakRangeReady.connect (bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), src)));
 438                                         }
 439                                 }
 440
 441                                 // handle multi
 442
 443                                 jack_nframes_t start = 0;
 444                                 if (rec_regions.size() > 0) {
 445                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 446                                 }
 447
 448                                 AudioRegion * region = new AudioRegion(sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false);
 449                                 region->set_position (_trackview.session().transport_frame(), this);
 450                                 rec_regions.push_back (region);
 451                                 /* catch it if it goes away */
 452                                 region->GoingAway.connect (mem_fun (*this, &AudioStreamView::remove_rec_region));
 453
 454                                 /* we add the region later */
 455                         }
 456
 457                         /* start a new rec box */
 458
 459                         AudioTrack* at;
 460
 461                         at = _trackview.audio_track(); /* we know what it is already */
 462                         AudioDiskstream& ds = at->audio_diskstream();
 463                         jack_nframes_t frame_pos = ds.current_capture_start ();
 464                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 465                         gdouble xend;
 466                         uint32_t fill_color;
 467
 468                         switch (_trackview.audio_track()->mode()) {
 469                         case Normal:
 470                                 xend = xstart;
 471                                 fill_color = color_map[cRecordingRectFill];
 472                                 break;
 473
 474                         case Destructive:
 475                                 xend = xstart + 2;
 476                                 fill_color = color_map[cRecordingRectFill];
 477                                 /* make the recording rect translucent to allow
 478                                    the user to see the peak data coming in, etc.
 479                                 */
 480                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 481                                 break;
 482                         }
 483
 484                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 485                         rec_rect->property_x1() = xstart;
 486                         rec_rect->property_y1() = 1.0;
 487                         rec_rect->property_x2() = xend;
 488                         rec_rect->property_y2() = (double) _trackview.height - 1;
 489                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 490                         rec_rect->property_fill_color_rgba() = fill_color;
 491
 492                         RecBoxInfo recbox;
 493                         recbox.rectangle = rec_rect;
 494                         recbox.start = _trackview.session().transport_frame();
 495                         recbox.length = 0;
 496
 497                         rec_rects.push_back (recbox);
 498
 499                         screen_update_connection.disconnect();
 500                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));
 501                         rec_updating = true;
 502                         rec_active = true;
 503
 504                 } else if (rec_active &&
 505                            (_trackview.session().record_status() != Session::Recording ||
 506                             !_trackview.get_diskstream()->record_enabled())) {
 507
 508                         screen_update_connection.disconnect();
 509                         rec_active = false;
 510                         rec_updating = false;
 511
 512                 }
 513
 514         } else {
 515
 516                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 517
 518                 if (!rec_rects.empty() || !rec_regions.empty()) {
 519
 520                         /* disconnect rapid update */
 521                         screen_update_connection.disconnect();
 522
 523                         for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 524                                 (*prc).disconnect();
 525                         }
 526                         peak_ready_connections.clear();
 527
 528                         rec_updating = false;
 529                         rec_active = false;
 530                         last_rec_peak_frame = 0;
 531
 532                         /* remove temp regions */
 533                         for (list<Region*>::iterator iter=rec_regions.begin(); iter != rec_regions.end(); )
 534                         {
 535                                 list<Region*>::iterator tmp;
 536
 537                                 tmp = iter;
 538                                 ++tmp;
 539
 540                                 /* this will trigger the remove_region_view */
 541                                 delete *iter;
 542
 543                                 iter = tmp;
 544                         }
 545
 546                         rec_regions.clear();
 547
 548                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 549
 550
 551                         /* transport stopped, clear boxes */
 552                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 553                                 RecBoxInfo &rect = (*iter);
 554                                 delete rect.rectangle;
 555                         }
 556
 557                         rec_rects.clear();
 558
 559                 }
 560         }
 561 }
 562
 563 void
 564 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 565 {
 566         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 567                 ((*i)->*pmf) ();
 568         }
 569 }
 570
 571 void
 572 AudioStreamView::rec_peak_range_ready (jack_nframes_t start, jack_nframes_t cnt, Source * src)
 573 {
 574         // this is called from the peak building thread
 575
 576         ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, src));
 577
 578         if (rec_peak_ready_map.size() == 0 || start+cnt > last_rec_peak_frame) {
 579                 last_rec_peak_frame = start + cnt;
 580         }
 581
 582         rec_peak_ready_map[src] = true;
 583
 584         if (rec_peak_ready_map.size() == _trackview.get_diskstream()->n_channels()) {
 585                 this->update_rec_regions ();
 586                 rec_peak_ready_map.clear();
 587         }
 588 }
 589
 590 void
 591 AudioStreamView::update_rec_regions ()
 592 {
 593         if (use_rec_regions) {
 594
 595                 uint32_t n = 0;
 596
 597                 for (list<Region*>::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 598
 599                         list<Region*>::iterator tmp;
 600
 601                         tmp = iter;
 602                         ++tmp;
 603
 604                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 605                                 /* rect already hidden, this region is done */
 606                                 iter = tmp;
 607                                 continue;
 608                         }
 609
 610                         // FIXME
 611                         AudioRegion * region = dynamic_cast<AudioRegion*>(*iter);
 612                         assert(region);
 613
 614                         jack_nframes_t origlen = region->length();
 615
 616                         if (region == rec_regions.back() && rec_active) {
 617
 618                                 if (last_rec_peak_frame > region->start()) {
 619
 620                                         jack_nframes_t nlen = last_rec_peak_frame - region->start();
 621
 622                                         if (nlen != region->length()) {
 623
 624                                                 region->freeze ();
 625                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 626                                                 region->set_length (nlen, this);
 627                                                 region->thaw ("updated");
 628
 629                                                 if (origlen == 1) {
 630                                                         /* our special initial length */
 631                                                         add_region_view_internal (region, false);
 632                                                 }
 633
 634                                                 /* also update rect */
 635                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 636                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 637                                                 rect->property_x2() = xend;
 638                                         }
 639                                 }
 640
 641                         } else {
 642
 643                                 jack_nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 644
 645                                 if (nlen != region->length()) {
 646
 647                                         if (region->source(0).length() >= region->start() + nlen) {
 648
 649                                                 region->freeze ();
 650                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 651                                                 region->set_length (nlen, this);
 652                                                 region->thaw ("updated");
 653
 654                                                 if (origlen == 1) {
 655                                                         /* our special initial length */
 656                                                         add_region_view_internal (region, false);
 657                                                 }
 658
 659                                                 /* also hide rect */
 660                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 661                                                 rect->hide();
 662
 663                                         }
 664                                 }
 665                         }
 666
 667                         iter = tmp;
 668                 }
 669         }
 670 }
 671
 672 void
 673 AudioStreamView::show_all_xfades ()
 674 {
 675         foreach_crossfadeview (&CrossfadeView::show);
 676         crossfades_visible = true;
 677 }
 678
 679 void
 680 AudioStreamView::hide_all_xfades ()
 681 {
 682         foreach_crossfadeview (&CrossfadeView::hide);
 683         crossfades_visible = false;
 684 }
 685
 686 void
 687 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 688 {
 689         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 690                 if ((*i)->crossfade.involves (rv.audio_region())) {
 691                         (*i)->fake_hide ();
 692                 }
 693         }
 694 }
 695
 696 void
 697 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 698 {
 699         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 700                 if ((*i)->crossfade.involves (rv.audio_region()) && (*i)->visible()) {
 701                         (*i)->show ();
 702                 }
 703         }
 704 }
 705
 706 void
 707 AudioStreamView::color_handler (ColorID id, uint32_t val)
 708 {
 709         switch (id) {
 710         case cAudioTrackBase:
 711                 if (_trackview.is_audio_track()) {
 712                         canvas_rect->property_fill_color_rgba() = val;
 713                 }
 714                 break;
 715         case cAudioBusBase:
 716                 if (!_trackview.is_audio_track()) {
 717                         canvas_rect->property_fill_color_rgba() = val;
 718                 }
 719                 break;
 720         case cAudioTrackOutline:
 721                 canvas_rect->property_outline_color_rgba() = val;
 722                 break;
 723
 724         default:
 725                 break;
 726         }
 727 }