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 #include "i18n.h"
  52
  53 using namespace ARDOUR;
  54 using namespace PBD;
  55 using namespace Editing;
  56
  57 AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
  58         : StreamView (tv)
  59 {
  60         crossfades_visible = true;
  61         _waveform_scale = LinearWaveform;
  62         _waveform_shape = Traditional;
  63
  64         if (tv.is_audio_track())
  65                 stream_base_color = color_map[cAudioTrackBase];
  66         else
  67                 stream_base_color = color_map[cAudioBusBase];
  68
  69         canvas_rect->property_fill_color_rgba() = stream_base_color;
  70         canvas_rect->property_outline_color_rgba() = color_map[cAudioTrackOutline];
  71
  72         _amplitude_above_axis = 1.0;
  73
  74         use_rec_regions = tv.editor.show_waveforms_recording ();
  75         last_rec_peak_frame = 0;
  76
  77 }
  78
  79 AudioStreamView::~AudioStreamView ()
  80 {
  81 }
  82
  83 int
  84 AudioStreamView::set_height (gdouble h)
  85 {
  86         /* limit the values to something sane-ish */
  87         if (h < 10.0 || h > 1000.0) {
  88                 return -1;
  89         }
  90
  91         StreamView::set_height(h);
  92
  93         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
  94                 (*i)->set_height (h);
  95         }
  96
  97         return 0;
  98 }
  99
 100 int
 101 AudioStreamView::set_samples_per_unit (gdouble spp)
 102 {
 103         StreamView::set_samples_per_unit(spp);
 104
 105         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 106                 (*xi)->set_samples_per_unit (spp);
 107         }
 108
 109         return 0;
 110 }
 111
 112 int
 113 AudioStreamView::set_amplitude_above_axis (gdouble app)
 114 {
 115         RegionViewList::iterator i;
 116
 117         if (app < 1.0) {
 118                 return -1;
 119         }
 120
 121         _amplitude_above_axis = app;
 122
 123         for (i = region_views.begin(); i != region_views.end(); ++i) {
 124                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 125                 if (arv)
 126                         arv->set_amplitude_above_axis (app);
 127         }
 128
 129         return 0;
 130 }
 131
 132 void
 133 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves)
 134 {
 135         AudioRegionView *region_view = 0;
 136
 137         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_region_view), r));
 138
 139         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 140
 141         if (region == 0) {
 142                 return;
 143         }
 144
 145         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 146                 if ((*i)->region() == r) {
 147
 148                         /* great. we already have a AudioRegionView for this Region. use it again. */
 149
 150                         (*i)->set_valid (true);
 151
 152                         // this might not be necessary
 153                         AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 154                         if (arv) {
 155                                 arv->set_waveform_scale (_waveform_scale);
 156                                 arv->set_waveform_shape (_waveform_shape);
 157                         }
 158
 159                         return;
 160                 }
 161         }
 162
 163         switch (_trackview.audio_track()->mode()) {
 164         case Normal:
 165                 region_view = new AudioRegionView (canvas_group, _trackview, region,
 166                                                    _samples_per_unit, region_color);
 167                 break;
 168         case Destructive:
 169                 region_view = new TapeAudioRegionView (canvas_group, _trackview, region,
 170                                                        _samples_per_unit, region_color);
 171                 break;
 172         default:
 173                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 174                 /*NOTREACHED*/
 175
 176         }
 177
 178         region_view->init (region_color, wait_for_waves);
 179         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 180         region_views.push_front (region_view);
 181
 182         /* if this was the first one, then lets query the waveform scale and shape.
 183            otherwise, we set it to the current value */
 184
 185         if (region_views.size() == 1) {
 186                 if (region_view->waveform_logscaled()) {
 187                         _waveform_scale = LogWaveform;
 188                 } else {
 189                         _waveform_scale = LinearWaveform;
 190                 }
 191
 192                 if (region_view->waveform_rectified()) {
 193                         _waveform_shape = Rectified;
 194                 } else {
 195                         _waveform_shape = Traditional;
 196                 }
 197         }
 198         else {
 199                 region_view->set_waveform_scale(_waveform_scale);
 200                 region_view->set_waveform_shape(_waveform_shape);
 201         }
 202
 203         /* follow global waveform setting */
 204
 205         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 206
 207         /* catch regionview going away */
 208         region->GoingAway.connect (bind (mem_fun (*this, &AudioStreamView::remove_region_view), boost::weak_ptr<Region> (r)));
 209
 210         RegionViewAdded (region_view);
 211 }
 212
 213 void
 214 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 215 {
 216         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), weak_r));
 217
 218         boost::shared_ptr<Region> r (weak_r.lock());
 219
 220         if (!r) {
 221                 return;
 222         }
 223
 224         if (!_trackview.session().deletion_in_progress()) {
 225
 226                 for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 227                         list<CrossfadeView*>::iterator tmp;
 228
 229                         tmp = i;
 230                         ++tmp;
 231
 232                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 233                         if (ar && (*i)->crossfade->involves (ar)) {
 234                                 delete *i;
 235                                 crossfade_views.erase (i);
 236                         }
 237
 238                         i = tmp;
 239                 }
 240         }
 241
 242
 243         StreamView::remove_region_view(r);
 244 }
 245
 246 void
 247 AudioStreamView::undisplay_diskstream ()
 248 {
 249         StreamView::undisplay_diskstream();
 250
 251         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 252                 delete *i;
 253         }
 254
 255         crossfade_views.clear ();
 256 }
 257
 258 void
 259 AudioStreamView::playlist_modified ()
 260 {
 261         ENSURE_GUI_THREAD (mem_fun (*this, &AudioStreamView::playlist_modified));
 262
 263         StreamView::playlist_modified();
 264
 265         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 266
 267         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 268                 (*i)->get_canvas_group()->raise_to_top();
 269         }
 270 }
 271
 272 void
 273 AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 274 {
 275         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
 276
 277         StreamView::playlist_changed(ds);
 278
 279         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 280         if (apl)
 281                 playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
 282 }
 283
 284 void
 285 AudioStreamView::add_crossfade (boost::shared_ptr<Crossfade> crossfade)
 286 {
 287         AudioRegionView* lview = 0;
 288         AudioRegionView* rview = 0;
 289
 290         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade), crossfade));
 291
 292         /* first see if we already have a CrossfadeView for this Crossfade */
 293
 294         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 295                 if ((*i)->crossfade == crossfade) {
 296                         if (!crossfades_visible) {
 297                                 (*i)->hide();
 298                         } else {
 299                                 (*i)->show ();
 300                         }
 301                         (*i)->set_valid (true);
 302                         return;
 303                 }
 304         }
 305
 306         /* create a new one */
 307
 308         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 309                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 310
 311                 if (!lview && arv && (arv->region() == crossfade->out())) {
 312                         lview = arv;
 313                 }
 314                 if (!rview && arv && (arv->region() == crossfade->in())) {
 315                         rview = arv;
 316                 }
 317         }
 318
 319         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 320                                                _trackview,
 321                                                 crossfade,
 322                                                _samples_per_unit,
 323                                                region_color,
 324                                                *lview, *rview);
 325
 326         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 327         crossfade_views.push_back (cv);
 328
 329         if (!Config->get_xfades_visible() || !crossfades_visible) {
 330                 cv->hide ();
 331         }
 332 }
 333
 334 void
 335 AudioStreamView::remove_crossfade (boost::shared_ptr<Crossfade> xfade)
 336 {
 337         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), xfade));
 338
 339         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 340                 if ((*i)->crossfade == xfade) {
 341                         delete *i;
 342                         crossfade_views.erase (i);
 343                         break;
 344                 }
 345         }
 346 }
 347
 348 void
 349 AudioStreamView::redisplay_diskstream ()
 350 {
 351         list<RegionView *>::iterator i, tmp;
 352         list<CrossfadeView*>::iterator xi, tmpx;
 353
 354         for (i = region_views.begin(); i != region_views.end(); ++i) {
 355                 (*i)->set_valid (false);
 356         }
 357
 358         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 359                 (*xi)->set_valid (false);
 360                 if ((*xi)->visible()) {
 361                         (*xi)->show ();
 362                 }
 363         }
 364
 365         if (_trackview.is_audio_track()) {
 366                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 367
 368                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(_trackview.get_diskstream()->playlist());
 369                 if (apl)
 370                         apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
 371         }
 372
 373         for (i = region_views.begin(); i != region_views.end(); ) {
 374                 tmp = i;
 375                 tmp++;
 376
 377                 if (!(*i)->is_valid()) {
 378                         delete *i;
 379                         region_views.erase (i);
 380                 }
 381
 382                 i = tmp;
 383         }
 384
 385         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 386                 tmpx = xi;
 387                 tmpx++;
 388
 389                 if (!(*xi)->valid()) {
 390                         delete *xi;
 391                         crossfade_views.erase (xi);
 392                 }
 393
 394                 xi = tmpx;
 395         }
 396
 397         /* now fix layering */
 398
 399         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 400                 region_layered (*i);
 401         }
 402 }
 403
 404 void
 405 AudioStreamView::set_show_waveforms (bool yn)
 406 {
 407         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 408                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 409                 if (arv)
 410                         arv->set_waveform_visible (yn);
 411         }
 412 }
 413
 414 void
 415 AudioStreamView::set_waveform_shape (WaveformShape shape)
 416 {
 417         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 418                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 419                 if (arv)
 420                         arv->set_waveform_shape (shape);
 421         }
 422         _waveform_shape = shape;
 423 }
 424
 425 void
 426 AudioStreamView::set_waveform_scale (WaveformScale scale)
 427 {
 428         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 429                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 430                 if (arv)
 431                         arv->set_waveform_scale (scale);
 432         }
 433         _waveform_scale = scale;
 434 }
 435
 436 void
 437 AudioStreamView::setup_rec_box ()
 438 {
 439         // cerr << _trackview.name() << " streamview SRB\n";
 440
 441         if (_trackview.session().transport_rolling()) {
 442
 443                 // cerr << "\trolling\n";
 444
 445                 if (!rec_active &&
 446                     _trackview.session().record_status() == Session::Recording &&
 447                     _trackview.get_diskstream()->record_enabled()) {
 448
 449                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 450
 451                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 452
 453                                 SourceList sources;
 454
 455                                 for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 456                                         (*prc).disconnect();
 457                                 }
 458                                 peak_ready_connections.clear();
 459
 460                                 // FIXME
 461                                 boost::shared_ptr<AudioDiskstream> ads = boost::dynamic_pointer_cast<AudioDiskstream>(_trackview.get_diskstream());
 462                                 assert(ads);
 463
 464                                 for (uint32_t n=0; n < ads->n_channels(); ++n) {
 465                                         boost::shared_ptr<AudioFileSource> src = boost::static_pointer_cast<AudioFileSource> (ads->write_source (n));
 466                                         if (src) {
 467                                                 sources.push_back (src);
 468                                                 peak_ready_connections.push_back (src->PeakRangeReady.connect (bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), boost::weak_ptr<Source>(src))));
 469                                         }
 470                                 }
 471
 472                                 // handle multi
 473
 474                                 nframes_t start = 0;
 475                                 if (rec_regions.size() > 0) {
 476                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 477                                 }
 478
 479                                 boost::shared_ptr<AudioRegion> region (boost::dynamic_pointer_cast<AudioRegion>
 480                                                                        (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 481                                 region->set_position (_trackview.session().transport_frame(), this);
 482
 483                                 rec_regions.push_back (region);
 484                         }
 485
 486                         /* start a new rec box */
 487
 488                         AudioTrack* at;
 489
 490                         at = _trackview.audio_track(); /* we know what it is already */
 491                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 492                         nframes_t frame_pos = ds->current_capture_start ();
 493                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 494                         gdouble xend;
 495                         uint32_t fill_color;
 496
 497                         switch (_trackview.audio_track()->mode()) {
 498                         case Normal:
 499                                 xend = xstart;
 500                                 fill_color = color_map[cRecordingRectFill];
 501                                 break;
 502
 503                         case Destructive:
 504                                 xend = xstart + 2;
 505                                 fill_color = color_map[cRecordingRectFill];
 506                                 /* make the recording rect translucent to allow
 507                                    the user to see the peak data coming in, etc.
 508                                 */
 509                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 510                                 break;
 511                         }
 512
 513                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 514                         rec_rect->property_x1() = xstart;
 515                         rec_rect->property_y1() = 1.0;
 516                         rec_rect->property_x2() = xend;
 517                         rec_rect->property_y2() = (double) _trackview.height - 1;
 518                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 519                         rec_rect->property_fill_color_rgba() = fill_color;
 520
 521                         RecBoxInfo recbox;
 522                         recbox.rectangle = rec_rect;
 523                         recbox.start = _trackview.session().transport_frame();
 524                         recbox.length = 0;
 525
 526                         rec_rects.push_back (recbox);
 527
 528                         screen_update_connection.disconnect();
 529                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));
 530                         rec_updating = true;
 531                         rec_active = true;
 532
 533                 } else if (rec_active &&
 534                            (_trackview.session().record_status() != Session::Recording ||
 535                             !_trackview.get_diskstream()->record_enabled())) {
 536
 537                         screen_update_connection.disconnect();
 538                         rec_active = false;
 539                         rec_updating = false;
 540
 541                 }
 542
 543         } else {
 544
 545                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 546
 547                 if (!rec_rects.empty() || !rec_regions.empty()) {
 548
 549                         /* disconnect rapid update */
 550                         screen_update_connection.disconnect();
 551
 552                         for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 553                                 (*prc).disconnect();
 554                         }
 555                         peak_ready_connections.clear();
 556
 557                         rec_updating = false;
 558                         rec_active = false;
 559                         last_rec_peak_frame = 0;
 560
 561                         /* remove temp regions */
 562
 563                         for (list<boost::shared_ptr<Region> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 564                                 list<boost::shared_ptr<Region> >::iterator tmp;
 565
 566                                 tmp = iter;
 567                                 ++tmp;
 568
 569                                 (*iter)->drop_references ();
 570
 571                                 iter = tmp;
 572                         }
 573
 574                         rec_regions.clear();
 575
 576                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 577
 578                         /* transport stopped, clear boxes */
 579                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 580                                 RecBoxInfo &rect = (*iter);
 581                                 delete rect.rectangle;
 582                         }
 583
 584                         rec_rects.clear();
 585
 586                 }
 587         }
 588 }
 589
 590 void
 591 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 592 {
 593         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 594                 ((*i)->*pmf) ();
 595         }
 596 }
 597
 598 void
 599 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 600 {
 601         ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, weak_src));
 602
 603         boost::shared_ptr<Source> src (weak_src.lock());
 604
 605         if (!src) {
 606                 return;
 607         }
 608
 609         // this is called from the peak building thread
 610
 611         if (rec_peak_ready_map.size() == 0 || start+cnt > last_rec_peak_frame) {
 612                 last_rec_peak_frame = start + cnt;
 613         }
 614
 615         rec_peak_ready_map[src] = true;
 616
 617         if (rec_peak_ready_map.size() == _trackview.get_diskstream()->n_channels()) {
 618                 this->update_rec_regions ();
 619                 rec_peak_ready_map.clear();
 620         }
 621 }
 622
 623 void
 624 AudioStreamView::update_rec_regions ()
 625 {
 626         if (use_rec_regions) {
 627
 628                 uint32_t n = 0;
 629
 630                 for (list<boost::shared_ptr<Region> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 631
 632                         list<boost::shared_ptr<Region> >::iterator tmp;
 633
 634                         tmp = iter;
 635                         ++tmp;
 636
 637                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 638                                 /* rect already hidden, this region is done */
 639                                 iter = tmp;
 640                                 continue;
 641                         }
 642
 643                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(*iter);
 644                         if (!region) {
 645                                 continue;
 646                         }
 647
 648                         nframes_t origlen = region->length();
 649
 650                         if (region == rec_regions.back() && rec_active) {
 651
 652                                 if (last_rec_peak_frame > region->start()) {
 653
 654                                         nframes_t nlen = last_rec_peak_frame - region->start();
 655
 656                                         if (nlen != region->length()) {
 657
 658                                                 region->freeze ();
 659                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 660                                                 region->set_length (nlen, this);
 661                                                 region->thaw ("updated");
 662
 663                                                 if (origlen == 1) {
 664                                                         /* our special initial length */
 665                                                         add_region_view_internal (region, false);
 666                                                 }
 667
 668                                                 /* also update rect */
 669                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 670                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 671                                                 rect->property_x2() = xend;
 672                                         }
 673                                 }
 674
 675                         } else {
 676
 677                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 678
 679                                 if (nlen != region->length()) {
 680
 681                                         if (region->source(0)->length() >= region->start() + nlen) {
 682
 683                                                 region->freeze ();
 684                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 685                                                 region->set_length (nlen, this);
 686                                                 region->thaw ("updated");
 687
 688                                                 if (origlen == 1) {
 689                                                         /* our special initial length */
 690                                                         add_region_view_internal (region, false);
 691                                                 }
 692
 693                                                 /* also hide rect */
 694                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 695                                                 rect->hide();
 696
 697                                         }
 698                                 }
 699                         }
 700
 701                         iter = tmp;
 702                 }
 703         }
 704 }
 705
 706 void
 707 AudioStreamView::show_all_xfades ()
 708 {
 709         foreach_crossfadeview (&CrossfadeView::show);
 710         crossfades_visible = true;
 711 }
 712
 713 void
 714 AudioStreamView::hide_all_xfades ()
 715 {
 716         foreach_crossfadeview (&CrossfadeView::hide);
 717         crossfades_visible = false;
 718 }
 719
 720 void
 721 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 722 {
 723         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 724                 if ((*i)->crossfade->involves (rv.audio_region())) {
 725                         (*i)->fake_hide ();
 726                 }
 727         }
 728 }
 729
 730 void
 731 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 732 {
 733         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 734                 if ((*i)->crossfade->involves (rv.audio_region()) && (*i)->visible()) {
 735                         (*i)->show ();
 736                 }
 737         }
 738 }
 739
 740 void
 741 AudioStreamView::color_handler (ColorID id, uint32_t val)
 742 {
 743         switch (id) {
 744         case cAudioTrackBase:
 745                 if (_trackview.is_track()) {
 746                         canvas_rect->property_fill_color_rgba() = val;
 747                 }
 748                 break;
 749         case cAudioBusBase:
 750                 if (!_trackview.is_track()) {
 751                         canvas_rect->property_fill_color_rgba() = val;
 752                 }
 753                 break;
 754         case cAudioTrackOutline:
 755                 canvas_rect->property_outline_color_rgba() = val;
 756                 break;
 757
 758         default:
 759                 break;
 760         }
 761 }
 762