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_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
  76 }
  77
  78 AudioStreamView::~AudioStreamView ()
  79 {
  80 }
  81
  82 int
  83 AudioStreamView::set_height (gdouble h)
  84 {
  85         /* limit the values to something sane-ish */
  86         if (h < 10.0 || h > 1000.0) {
  87                 return -1;
  88         }
  89
  90         StreamView::set_height(h);
  91
  92         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
  93                 (*i)->set_height (h);
  94         }
  95
  96         return 0;
  97 }
  98
  99 int
 100 AudioStreamView::set_samples_per_unit (gdouble spp)
 101 {
 102         StreamView::set_samples_per_unit(spp);
 103
 104         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 105                 (*xi)->set_samples_per_unit (spp);
 106         }
 107
 108         return 0;
 109 }
 110
 111 int
 112 AudioStreamView::set_amplitude_above_axis (gdouble app)
 113 {
 114         RegionViewList::iterator i;
 115
 116         if (app < 1.0) {
 117                 return -1;
 118         }
 119
 120         _amplitude_above_axis = app;
 121
 122         for (i = region_views.begin(); i != region_views.end(); ++i) {
 123                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 124                 if (arv)
 125                         arv->set_amplitude_above_axis (app);
 126         }
 127
 128         return 0;
 129 }
 130
 131 void
 132 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves)
 133 {
 134         AudioRegionView *region_view = 0;
 135
 136         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_region_view), r));
 137
 138         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 139
 140         if (region == 0) {
 141                 return;
 142         }
 143
 144         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 145                 if ((*i)->region() == r) {
 146
 147                         /* great. we already have a AudioRegionView for this Region. use it again. */
 148
 149                         (*i)->set_valid (true);
 150
 151                         // this might not be necessary
 152                         AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 153                         if (arv) {
 154                                 arv->set_waveform_scale (_waveform_scale);
 155                                 arv->set_waveform_shape (_waveform_shape);
 156                         }
 157
 158                         return;
 159                 }
 160         }
 161
 162         switch (_trackview.audio_track()->mode()) {
 163         case Normal:
 164                 region_view = new AudioRegionView (canvas_group, _trackview, region,
 165                                                    _samples_per_unit, region_color);
 166                 break;
 167         case Destructive:
 168                 region_view = new TapeAudioRegionView (canvas_group, _trackview, region,
 169                                                        _samples_per_unit, region_color);
 170                 break;
 171         default:
 172                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 173                 /*NOTREACHED*/
 174
 175         }
 176
 177         region_view->init (region_color, wait_for_waves);
 178         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 179         region_views.push_front (region_view);
 180
 181         /* if this was the first one, then lets query the waveform scale and shape.
 182            otherwise, we set it to the current value */
 183
 184         if (region_views.size() == 1) {
 185                 if (region_view->waveform_logscaled()) {
 186                         _waveform_scale = LogWaveform;
 187                 } else {
 188                         _waveform_scale = LinearWaveform;
 189                 }
 190
 191                 if (region_view->waveform_rectified()) {
 192                         _waveform_shape = Rectified;
 193                 } else {
 194                         _waveform_shape = Traditional;
 195                 }
 196         }
 197         else {
 198                 region_view->set_waveform_scale(_waveform_scale);
 199                 region_view->set_waveform_shape(_waveform_shape);
 200         }
 201
 202         /* follow global waveform setting */
 203
 204         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 205
 206         /* catch regionview going away */
 207         region->GoingAway.connect (bind (mem_fun (*this, &AudioStreamView::remove_region_view), boost::weak_ptr<Region> (r)));
 208
 209         RegionViewAdded (region_view);
 210 }
 211
 212 void
 213 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 214 {
 215         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), weak_r));
 216
 217         boost::shared_ptr<Region> r (weak_r.lock());
 218
 219         if (!r) {
 220                 return;
 221         }
 222
 223         if (!_trackview.session().deletion_in_progress()) {
 224
 225                 for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 226                         list<CrossfadeView*>::iterator tmp;
 227
 228                         tmp = i;
 229                         ++tmp;
 230
 231                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 232                         if (ar && (*i)->crossfade->involves (ar)) {
 233                                 delete *i;
 234                                 crossfade_views.erase (i);
 235                         }
 236
 237                         i = tmp;
 238                 }
 239         }
 240
 241         StreamView::remove_region_view(r);
 242 }
 243
 244 void
 245 AudioStreamView::undisplay_diskstream ()
 246 {
 247         StreamView::undisplay_diskstream();
 248
 249         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 250                 delete *i;
 251         }
 252
 253         crossfade_views.clear ();
 254 }
 255
 256 void
 257 AudioStreamView::playlist_modified ()
 258 {
 259         ENSURE_GUI_THREAD (mem_fun (*this, &AudioStreamView::playlist_modified));
 260
 261         StreamView::playlist_modified();
 262
 263         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 264
 265         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 266                 (*i)->get_canvas_group()->raise_to_top();
 267         }
 268 }
 269
 270 void
 271 AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 272 {
 273         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
 274
 275         StreamView::playlist_changed(ds);
 276
 277         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 278         if (apl)
 279                 playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
 280 }
 281
 282 void
 283 AudioStreamView::add_crossfade (boost::shared_ptr<Crossfade> crossfade)
 284 {
 285         AudioRegionView* lview = 0;
 286         AudioRegionView* rview = 0;
 287
 288         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade), crossfade));
 289
 290         /* first see if we already have a CrossfadeView for this Crossfade */
 291
 292         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 293                 if ((*i)->crossfade == crossfade) {
 294                         if (!crossfades_visible) {
 295                                 (*i)->hide();
 296                         } else {
 297                                 (*i)->show ();
 298                         }
 299                         (*i)->set_valid (true);
 300                         return;
 301                 }
 302         }
 303
 304         /* create a new one */
 305
 306         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 307                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 308
 309                 if (!lview && arv && (arv->region() == crossfade->out())) {
 310                         lview = arv;
 311                 }
 312                 if (!rview && arv && (arv->region() == crossfade->in())) {
 313                         rview = arv;
 314                 }
 315         }
 316
 317         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 318                                                _trackview,
 319                                                 crossfade,
 320                                                _samples_per_unit,
 321                                                region_color,
 322                                                *lview, *rview);
 323
 324         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 325         crossfade_views.push_back (cv);
 326
 327         if (!Config->get_xfades_visible() || !crossfades_visible) {
 328                 cv->hide ();
 329         }
 330 }
 331
 332 void
 333 AudioStreamView::remove_crossfade (boost::shared_ptr<Crossfade> xfade)
 334 {
 335         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), xfade));
 336
 337         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 338                 if ((*i)->crossfade == xfade) {
 339                         delete *i;
 340                         crossfade_views.erase (i);
 341                         break;
 342                 }
 343         }
 344 }
 345
 346 void
 347 AudioStreamView::redisplay_diskstream ()
 348 {
 349         list<RegionView *>::iterator i, tmp;
 350         list<CrossfadeView*>::iterator xi, tmpx;
 351
 352         for (i = region_views.begin(); i != region_views.end(); ++i) {
 353                 (*i)->set_valid (false);
 354         }
 355
 356         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 357                 (*xi)->set_valid (false);
 358                 if ((*xi)->visible()) {
 359                         (*xi)->show ();
 360                 }
 361         }
 362
 363         if (_trackview.is_audio_track()) {
 364                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 365
 366                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(_trackview.get_diskstream()->playlist());
 367                 if (apl)
 368                         apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
 369         }
 370
 371         for (i = region_views.begin(); i != region_views.end(); ) {
 372                 tmp = i;
 373                 tmp++;
 374
 375                 if (!(*i)->is_valid()) {
 376                         delete *i;
 377                         region_views.erase (i);
 378                 }
 379
 380                 i = tmp;
 381         }
 382
 383         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 384                 tmpx = xi;
 385                 tmpx++;
 386
 387                 if (!(*xi)->valid()) {
 388                         delete *xi;
 389                         crossfade_views.erase (xi);
 390                 }
 391
 392                 xi = tmpx;
 393         }
 394
 395         /* now fix layering */
 396
 397         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 398                 region_layered (*i);
 399         }
 400 }
 401
 402 void
 403 AudioStreamView::set_show_waveforms (bool yn)
 404 {
 405         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 406                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 407                 if (arv)
 408                         arv->set_waveform_visible (yn);
 409         }
 410 }
 411
 412 void
 413 AudioStreamView::set_waveform_shape (WaveformShape shape)
 414 {
 415         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 416                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 417                 if (arv)
 418                         arv->set_waveform_shape (shape);
 419         }
 420         _waveform_shape = shape;
 421 }
 422
 423 void
 424 AudioStreamView::set_waveform_scale (WaveformScale scale)
 425 {
 426         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 427                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 428                 if (arv)
 429                         arv->set_waveform_scale (scale);
 430         }
 431         _waveform_scale = scale;
 432 }
 433
 434 void
 435 AudioStreamView::setup_rec_box ()
 436 {
 437         // cerr << _trackview.name() << " streamview SRB\n";
 438
 439         if (_trackview.session().transport_rolling()) {
 440
 441                 // cerr << "\trolling\n";
 442
 443                 if (!rec_active &&
 444                     _trackview.session().record_status() == Session::Recording &&
 445                     _trackview.get_diskstream()->record_enabled()) {
 446
 447                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 448
 449                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 450
 451                                 SourceList sources;
 452
 453                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 454                                         (*prc).disconnect();
 455                                 }
 456                                 rec_data_ready_connections.clear();
 457
 458                                 // FIXME
 459                                 boost::shared_ptr<AudioDiskstream> ads = boost::dynamic_pointer_cast<AudioDiskstream>(_trackview.get_diskstream());
 460                                 assert(ads);
 461
 462                                 for (uint32_t n=0; n < ads->n_channels().get(DataType::AUDIO); ++n) {
 463                                         boost::shared_ptr<AudioFileSource> src = boost::static_pointer_cast<AudioFileSource> (ads->write_source (n));
 464                                         if (src) {
 465                                                 sources.push_back (src);
 466
 467                                                 rec_data_ready_connections.push_back (src->PeakRangeReady.connect (bind
 468                                                         (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                                 assert(region);
 482                                 region->set_position (_trackview.session().transport_frame(), this);
 483
 484                                 rec_regions.push_back (region);
 485                         }
 486
 487                         /* start a new rec box */
 488
 489                         AudioTrack* at;
 490
 491                         at = _trackview.audio_track(); /* we know what it is already */
 492                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 493                         nframes_t frame_pos = ds->current_capture_start ();
 494                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 495                         gdouble xend;
 496                         uint32_t fill_color;
 497
 498                         switch (_trackview.audio_track()->mode()) {
 499                         case Normal:
 500                                 xend = xstart;
 501                                 fill_color = color_map[cRecordingRectFill];
 502                                 break;
 503
 504                         case Destructive:
 505                                 xend = xstart + 2;
 506                                 fill_color = color_map[cRecordingRectFill];
 507                                 /* make the recording rect translucent to allow
 508                                    the user to see the peak data coming in, etc.
 509                                 */
 510                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 511                                 break;
 512                         }
 513
 514                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 515                         rec_rect->property_x1() = xstart;
 516                         rec_rect->property_y1() = 1.0;
 517                         rec_rect->property_x2() = xend;
 518                         rec_rect->property_y2() = (double) _trackview.height - 1;
 519                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 520                         rec_rect->property_fill_color_rgba() = fill_color;
 521
 522                         RecBoxInfo recbox;
 523                         recbox.rectangle = rec_rect;
 524                         recbox.start = _trackview.session().transport_frame();
 525                         recbox.length = 0;
 526
 527                         rec_rects.push_back (recbox);
 528
 529                         screen_update_connection.disconnect();
 530                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));
 531                         rec_updating = true;
 532                         rec_active = true;
 533
 534                 } else if (rec_active &&
 535                            (_trackview.session().record_status() != Session::Recording ||
 536                             !_trackview.get_diskstream()->record_enabled())) {
 537
 538                         screen_update_connection.disconnect();
 539                         rec_active = false;
 540                         rec_updating = false;
 541
 542                 }
 543
 544         } else {
 545
 546                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 547
 548                 if (!rec_rects.empty() || !rec_regions.empty()) {
 549
 550                         /* disconnect rapid update */
 551                         screen_update_connection.disconnect();
 552
 553                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 554                                 (*prc).disconnect();
 555                         }
 556                         rec_data_ready_connections.clear();
 557
 558                         rec_updating = false;
 559                         rec_active = false;
 560                         last_rec_data_frame = 0;
 561
 562                         /* remove temp regions */
 563
 564                         for (list<boost::shared_ptr<Region> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 565                                 list<boost::shared_ptr<Region> >::iterator tmp;
 566
 567                                 tmp = iter;
 568                                 ++tmp;
 569
 570                                 (*iter)->drop_references ();
 571
 572                                 iter = tmp;
 573                         }
 574
 575                         rec_regions.clear();
 576
 577                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 578
 579                         /* transport stopped, clear boxes */
 580                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 581                                 RecBoxInfo &rect = (*iter);
 582                                 delete rect.rectangle;
 583                         }
 584
 585                         rec_rects.clear();
 586
 587                 }
 588         }
 589 }
 590
 591 void
 592 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 593 {
 594         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 595                 ((*i)->*pmf) ();
 596         }
 597 }
 598
 599 void
 600 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 601 {
 602         ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, weak_src));
 603
 604         boost::shared_ptr<Source> src (weak_src.lock());
 605
 606         if (!src) {
 607                 return;
 608         }
 609
 610         // this is called from the peak building thread
 611
 612         if (rec_data_ready_map.size() == 0 || start+cnt > last_rec_data_frame) {
 613                 last_rec_data_frame = start + cnt;
 614         }
 615
 616         rec_data_ready_map[src] = true;
 617
 618         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().get(DataType::AUDIO)) {
 619                 this->update_rec_regions ();
 620                 rec_data_ready_map.clear();
 621         }
 622 }
 623
 624 void
 625 AudioStreamView::update_rec_regions ()
 626 {
 627         if (use_rec_regions) {
 628
 629                 uint32_t n = 0;
 630
 631                 for (list<boost::shared_ptr<Region> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 632
 633                         list<boost::shared_ptr<Region> >::iterator tmp;
 634
 635                         tmp = iter;
 636                         ++tmp;
 637
 638                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 639                                 /* rect already hidden, this region is done */
 640                                 iter = tmp;
 641                                 continue;
 642                         }
 643
 644                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(*iter);
 645                         if (!region) {
 646                                 continue;
 647                         }
 648
 649                         nframes_t origlen = region->length();
 650
 651                         if (region == rec_regions.back() && rec_active) {
 652
 653                                 if (last_rec_data_frame > region->start()) {
 654
 655                                         nframes_t nlen = last_rec_data_frame - region->start();
 656
 657                                         if (nlen != region->length()) {
 658
 659                                                 region->freeze ();
 660                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 661                                                 region->set_length (nlen, this);
 662                                                 region->thaw ("updated");
 663
 664                                                 if (origlen == 1) {
 665                                                         /* our special initial length */
 666                                                         add_region_view_internal (region, false);
 667                                                 }
 668
 669                                                 /* also update rect */
 670                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 671                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 672                                                 rect->property_x2() = xend;
 673                                         }
 674                                 }
 675
 676                         } else {
 677
 678                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 679
 680                                 if (nlen != region->length()) {
 681
 682                                         if (region->source(0)->length() >= region->start() + nlen) {
 683
 684                                                 region->freeze ();
 685                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 686                                                 region->set_length (nlen, this);
 687                                                 region->thaw ("updated");
 688
 689                                                 if (origlen == 1) {
 690                                                         /* our special initial length */
 691                                                         add_region_view_internal (region, false);
 692                                                 }
 693
 694                                                 /* also hide rect */
 695                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 696                                                 rect->hide();
 697
 698                                         }
 699                                 }
 700                         }
 701
 702                         iter = tmp;
 703                 }
 704         }
 705 }
 706
 707 void
 708 AudioStreamView::show_all_xfades ()
 709 {
 710         foreach_crossfadeview (&CrossfadeView::show);
 711         crossfades_visible = true;
 712 }
 713
 714 void
 715 AudioStreamView::hide_all_xfades ()
 716 {
 717         foreach_crossfadeview (&CrossfadeView::hide);
 718         crossfades_visible = false;
 719 }
 720
 721 void
 722 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 723 {
 724         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 725                 if ((*i)->crossfade->involves (rv.audio_region())) {
 726                         (*i)->fake_hide ();
 727                 }
 728         }
 729 }
 730
 731 void
 732 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 733 {
 734         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 735                 if ((*i)->crossfade->involves (rv.audio_region()) && (*i)->visible()) {
 736                         (*i)->show ();
 737                 }
 738         }
 739 }
 740
 741 void
 742 AudioStreamView::color_handler (ColorID id, uint32_t val)
 743 {
 744         switch (id) {
 745         case cAudioTrackBase:
 746                 if (_trackview.is_track()) {
 747                         canvas_rect->property_fill_color_rgba() = val;
 748                 }
 749                 break;
 750         case cAudioBusBase:
 751                 if (!_trackview.is_track()) {
 752                         canvas_rect->property_fill_color_rgba() = val;
 753                 }
 754                 break;
 755         case cAudioTrackOutline:
 756                 canvas_rect->property_outline_color_rgba() = val;
 757                 break;
 758
 759         default:
 760                 break;
 761         }
 762 }
 763