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_samples_per_unit (gdouble spp)
  84 {
  85         StreamView::set_samples_per_unit(spp);
  86
  87         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
  88                 (*xi)->set_samples_per_unit (spp);
  89         }
  90
  91         return 0;
  92 }
  93
  94 int
  95 AudioStreamView::set_amplitude_above_axis (gdouble app)
  96 {
  97         RegionViewList::iterator i;
  98
  99         if (app < 1.0) {
 100                 return -1;
 101         }
 102
 103         _amplitude_above_axis = app;
 104
 105         for (i = region_views.begin(); i != region_views.end(); ++i) {
 106                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 107                 if (arv)
 108                         arv->set_amplitude_above_axis (app);
 109         }
 110
 111         return 0;
 112 }
 113
 114 void
 115 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves)
 116 {
 117         AudioRegionView *region_view = 0;
 118
 119         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_region_view), r));
 120
 121         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 122
 123         if (region == 0) {
 124                 return;
 125         }
 126
 127         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 128                 if ((*i)->region() == r) {
 129
 130                         /* great. we already have a AudioRegionView for this Region. use it again. */
 131
 132                         (*i)->set_valid (true);
 133
 134                         // this might not be necessary
 135                         AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 136                         if (arv) {
 137                                 arv->set_waveform_scale (_waveform_scale);
 138                                 arv->set_waveform_shape (_waveform_shape);
 139                         }
 140
 141                         return;
 142                 }
 143         }
 144
 145         switch (_trackview.audio_track()->mode()) {
 146         case Normal:
 147                 region_view = new AudioRegionView (canvas_group, _trackview, region,
 148                                                    _samples_per_unit, region_color);
 149                 break;
 150         case Destructive:
 151                 region_view = new TapeAudioRegionView (canvas_group, _trackview, region,
 152                                                        _samples_per_unit, region_color);
 153                 break;
 154         default:
 155                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 156                 /*NOTREACHED*/
 157
 158         }
 159
 160         region_view->init (region_color, wait_for_waves);
 161         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 162         region_views.push_front (region_view);
 163
 164
 165         /* if its the special single-sample length that we use for rec-regions, make it
 166            insensitive to events
 167         */
 168
 169         if (region->length() == 1) {
 170                 region_view->set_sensitive (false);
 171         }
 172
 173         /* if this was the first one, then lets query the waveform scale and shape.
 174            otherwise, we set it to the current value */
 175
 176         if (region_views.size() == 1) {
 177                 if (region_view->waveform_logscaled()) {
 178                         _waveform_scale = LogWaveform;
 179                 } else {
 180                         _waveform_scale = LinearWaveform;
 181                 }
 182
 183                 if (region_view->waveform_rectified()) {
 184                         _waveform_shape = Rectified;
 185                 } else {
 186                         _waveform_shape = Traditional;
 187                 }
 188         }
 189         else {
 190                 region_view->set_waveform_scale(_waveform_scale);
 191                 region_view->set_waveform_shape(_waveform_shape);
 192         }
 193
 194         /* follow global waveform setting */
 195
 196         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 197
 198         /* catch regionview going away */
 199         region->GoingAway.connect (bind (mem_fun (*this, &AudioStreamView::remove_region_view), boost::weak_ptr<Region> (r)));
 200
 201         RegionViewAdded (region_view);
 202 }
 203
 204 void
 205 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 206 {
 207         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), weak_r));
 208
 209         boost::shared_ptr<Region> r (weak_r.lock());
 210
 211         if (!r) {
 212                 return;
 213         }
 214
 215         if (!_trackview.session().deletion_in_progress()) {
 216
 217                 for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 218                         list<CrossfadeView*>::iterator tmp;
 219
 220                         tmp = i;
 221                         ++tmp;
 222
 223                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 224                         if (ar && (*i)->crossfade->involves (ar)) {
 225                                 delete *i;
 226                                 crossfade_views.erase (i);
 227                         }
 228
 229                         i = tmp;
 230                 }
 231         }
 232
 233         StreamView::remove_region_view(r);
 234 }
 235
 236 void
 237 AudioStreamView::undisplay_diskstream ()
 238 {
 239         StreamView::undisplay_diskstream();
 240
 241         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 242                 delete *i;
 243         }
 244
 245         crossfade_views.clear ();
 246 }
 247
 248 void
 249 AudioStreamView::playlist_modified_weak (boost::weak_ptr<Diskstream> ds)
 250 {
 251         boost::shared_ptr<Diskstream> sp (ds.lock());
 252         if (!sp) {
 253                 return;
 254         }
 255
 256         playlist_modified (sp);
 257 }
 258
 259 void
 260 AudioStreamView::playlist_modified (boost::shared_ptr<Diskstream> ds)
 261 {
 262         /* we do not allow shared_ptr<T> to be bound to slots */
 263         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_modified_weak), ds));
 264
 265         StreamView::playlist_modified (ds);
 266
 267         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 268
 269         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 270                 (*i)->get_canvas_group()->raise_to_top();
 271         }
 272 }
 273
 274 void
 275 AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 276 {
 277         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
 278
 279         StreamView::playlist_changed(ds);
 280
 281         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 282         if (apl)
 283                 playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
 284 }
 285
 286 void
 287 AudioStreamView::add_crossfade_weak (boost::weak_ptr<Crossfade> crossfade)
 288 {
 289         boost::shared_ptr<Crossfade> sp (crossfade.lock());
 290
 291         if (!sp) {
 292                 return;
 293         }
 294
 295         add_crossfade (sp);
 296 }
 297
 298 void
 299 AudioStreamView::add_crossfade (boost::shared_ptr<Crossfade> crossfade)
 300 {
 301         AudioRegionView* lview = 0;
 302         AudioRegionView* rview = 0;
 303
 304         /* we do not allow shared_ptr<T> to be bound to slots */
 305
 306         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade_weak), boost::weak_ptr<Crossfade> (crossfade)));
 307
 308         /* first see if we already have a CrossfadeView for this Crossfade */
 309
 310         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 311                 if ((*i)->crossfade == crossfade) {
 312                         if (!crossfades_visible || layer_display == Stacked) {
 313                                 (*i)->hide();
 314                         } else {
 315                                 (*i)->show ();
 316                         }
 317                         (*i)->set_valid (true);
 318                         return;
 319                 }
 320         }
 321
 322         /* create a new one */
 323
 324         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 325                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 326
 327                 if (!lview && arv && (arv->region() == crossfade->out())) {
 328                         lview = arv;
 329                 }
 330                 if (!rview && arv && (arv->region() == crossfade->in())) {
 331                         rview = arv;
 332                 }
 333         }
 334
 335         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 336                                                _trackview,
 337                                                 crossfade,
 338                                                _samples_per_unit,
 339                                                region_color,
 340                                                *lview, *rview);
 341
 342         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 343         crossfade_views.push_back (cv);
 344
 345         if (!Config->get_xfades_visible() || !crossfades_visible || layer_display == Stacked) {
 346                 cv->hide ();
 347         }
 348 }
 349
 350 void
 351 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 352 {
 353         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), r));
 354
 355         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 356
 357         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 358                 if ((*i)->crossfade == xfade) {
 359                         delete *i;
 360                         crossfade_views.erase (i);
 361                         break;
 362                 }
 363         }
 364 }
 365
 366 void
 367 AudioStreamView::redisplay_diskstream ()
 368 {
 369         list<RegionView *>::iterator i, tmp;
 370         list<CrossfadeView*>::iterator xi, tmpx;
 371
 372         for (i = region_views.begin(); i != region_views.end(); ++i) {
 373                 (*i)->set_valid (false);
 374         }
 375
 376         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 377                 (*xi)->set_valid (false);
 378                 if ((*xi)->visible() && layer_display != Stacked) {
 379                         (*xi)->show ();
 380                 }
 381         }
 382
 383         if (_trackview.is_audio_track()) {
 384                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 385
 386                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(_trackview.get_diskstream()->playlist());
 387                 if (apl)
 388                         apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
 389         }
 390
 391         for (i = region_views.begin(); i != region_views.end(); ) {
 392                 tmp = i;
 393                 tmp++;
 394
 395                 if (!(*i)->is_valid()) {
 396                         delete *i;
 397                         region_views.erase (i);
 398                 }
 399
 400                 i = tmp;
 401         }
 402
 403         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 404                 tmpx = xi;
 405                 tmpx++;
 406
 407                 if (!(*xi)->valid()) {
 408                         delete *xi;
 409                         crossfade_views.erase (xi);
 410                 }
 411
 412                 xi = tmpx;
 413         }
 414
 415         /* now fix layering */
 416
 417         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 418                 region_layered (*i);
 419         }
 420 }
 421
 422 void
 423 AudioStreamView::set_show_waveforms (bool yn)
 424 {
 425         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 426                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 427                 if (arv)
 428                         arv->set_waveform_visible (yn);
 429         }
 430 }
 431
 432 void
 433 AudioStreamView::set_waveform_shape (WaveformShape shape)
 434 {
 435         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 436                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 437                 if (arv)
 438                         arv->set_waveform_shape (shape);
 439         }
 440         _waveform_shape = shape;
 441 }
 442
 443 void
 444 AudioStreamView::set_waveform_scale (WaveformScale scale)
 445 {
 446         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 447                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 448                 if (arv)
 449                         arv->set_waveform_scale (scale);
 450         }
 451         _waveform_scale = scale;
 452 }
 453
 454 void
 455 AudioStreamView::setup_rec_box ()
 456 {
 457         // cerr << _trackview.name() << " streamview SRB\n";
 458
 459         if (_trackview.session().transport_rolling()) {
 460
 461                 // cerr << "\trolling\n";
 462
 463                 if (!rec_active &&
 464                     _trackview.session().record_status() == Session::Recording &&
 465                     _trackview.get_diskstream()->record_enabled()) {
 466
 467                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 468
 469                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 470
 471                                 SourceList sources;
 472
 473                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 474                                         (*prc).disconnect();
 475                                 }
 476                                 rec_data_ready_connections.clear();
 477
 478                                 // FIXME
 479                                 boost::shared_ptr<AudioDiskstream> ads = boost::dynamic_pointer_cast<AudioDiskstream>(_trackview.get_diskstream());
 480                                 assert(ads);
 481
 482                                 for (uint32_t n=0; n < ads->n_channels().n_audio(); ++n) {
 483                                         boost::shared_ptr<AudioFileSource> src = boost::static_pointer_cast<AudioFileSource> (ads->write_source (n));
 484                                         if (src) {
 485                                                 sources.push_back (src);
 486
 487                                                 rec_data_ready_connections.push_back (src->PeakRangeReady.connect (bind
 488                                                         (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), boost::weak_ptr<Source>(src))));
 489                                         }
 490                                 }
 491
 492                                 // handle multi
 493
 494                                 nframes_t start = 0;
 495                                 if (rec_regions.size() > 0) {
 496                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 497                                 }
 498
 499                                 boost::shared_ptr<AudioRegion> region (boost::dynamic_pointer_cast<AudioRegion>
 500                                                                        (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 501                                 assert(region);
 502                                 region->set_position (_trackview.session().transport_frame(), this);
 503
 504                                 rec_regions.push_back (region);
 505                         }
 506
 507                         /* start a new rec box */
 508
 509                         AudioTrack* at;
 510
 511                         at = _trackview.audio_track(); /* we know what it is already */
 512                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 513                         nframes_t frame_pos = ds->current_capture_start ();
 514                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 515                         gdouble xend;
 516                         uint32_t fill_color;
 517
 518                         switch (_trackview.audio_track()->mode()) {
 519                         case Normal:
 520                                 xend = xstart;
 521                                 fill_color = color_map[cRecordingRectFill];
 522                                 break;
 523
 524                         case Destructive:
 525                                 xend = xstart + 2;
 526                                 fill_color = color_map[cRecordingRectFill];
 527                                 /* make the recording rect translucent to allow
 528                                    the user to see the peak data coming in, etc.
 529                                 */
 530                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 531                                 break;
 532                         }
 533
 534                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 535                         rec_rect->property_x1() = xstart;
 536                         rec_rect->property_y1() = 1.0;
 537                         rec_rect->property_x2() = xend;
 538                         rec_rect->property_y2() = (double) _trackview.height - 1;
 539                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 540                         rec_rect->property_fill_color_rgba() = fill_color;
 541
 542                         RecBoxInfo recbox;
 543                         recbox.rectangle = rec_rect;
 544                         recbox.start = _trackview.session().transport_frame();
 545                         recbox.length = 0;
 546
 547                         rec_rects.push_back (recbox);
 548
 549                         screen_update_connection.disconnect();
 550                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));
 551                         rec_updating = true;
 552                         rec_active = true;
 553
 554                 } else if (rec_active &&
 555                            (_trackview.session().record_status() != Session::Recording ||
 556                             !_trackview.get_diskstream()->record_enabled())) {
 557
 558                         screen_update_connection.disconnect();
 559                         rec_active = false;
 560                         rec_updating = false;
 561
 562                 }
 563
 564         } else {
 565
 566                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 567
 568                 if (!rec_rects.empty() || !rec_regions.empty()) {
 569
 570                         /* disconnect rapid update */
 571                         screen_update_connection.disconnect();
 572
 573                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 574                                 (*prc).disconnect();
 575                         }
 576                         rec_data_ready_connections.clear();
 577
 578                         rec_updating = false;
 579                         rec_active = false;
 580                         last_rec_data_frame = 0;
 581
 582                         /* remove temp regions */
 583
 584                         for (list<boost::shared_ptr<Region> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 585                                 list<boost::shared_ptr<Region> >::iterator tmp;
 586
 587                                 tmp = iter;
 588                                 ++tmp;
 589
 590                                 (*iter)->drop_references ();
 591
 592                                 iter = tmp;
 593                         }
 594
 595                         rec_regions.clear();
 596
 597                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 598
 599                         /* transport stopped, clear boxes */
 600                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 601                                 RecBoxInfo &rect = (*iter);
 602                                 delete rect.rectangle;
 603                         }
 604
 605                         rec_rects.clear();
 606
 607                 }
 608         }
 609 }
 610
 611 void
 612 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 613 {
 614         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 615                 ((*i)->*pmf) ();
 616         }
 617 }
 618
 619 void
 620 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 621 {
 622         ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, weak_src));
 623
 624         boost::shared_ptr<Source> src (weak_src.lock());
 625
 626         if (!src) {
 627                 return;
 628         }
 629
 630         // this is called from the peak building thread
 631
 632         if (rec_data_ready_map.size() == 0 || start+cnt > last_rec_data_frame) {
 633                 last_rec_data_frame = start + cnt;
 634         }
 635
 636         rec_data_ready_map[src] = true;
 637
 638         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().n_audio()) {
 639                 this->update_rec_regions ();
 640                 rec_data_ready_map.clear();
 641         }
 642 }
 643
 644 void
 645 AudioStreamView::update_rec_regions ()
 646 {
 647         if (use_rec_regions) {
 648
 649                 uint32_t n = 0;
 650
 651                 for (list<boost::shared_ptr<Region> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 652
 653                         list<boost::shared_ptr<Region> >::iterator tmp;
 654
 655                         tmp = iter;
 656                         ++tmp;
 657
 658                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 659                                 /* rect already hidden, this region is done */
 660                                 iter = tmp;
 661                                 continue;
 662                         }
 663
 664                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(*iter);
 665                         if (!region) {
 666                                 continue;
 667                         }
 668
 669                         nframes_t origlen = region->length();
 670
 671                         if (region == rec_regions.back() && rec_active) {
 672
 673                                 if (last_rec_data_frame > region->start()) {
 674
 675                                         nframes_t nlen = last_rec_data_frame - region->start();
 676
 677                                         if (nlen != region->length()) {
 678
 679                                                 region->freeze ();
 680                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 681                                                 region->set_length (nlen, this);
 682                                                 region->thaw ("updated");
 683
 684                                                 if (origlen == 1) {
 685                                                         /* our special initial length */
 686                                                         add_region_view_internal (region, false);
 687                                                 }
 688
 689                                                 /* also update rect */
 690                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 691                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 692                                                 rect->property_x2() = xend;
 693                                         }
 694                                 }
 695
 696                         } else {
 697
 698                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 699
 700                                 if (nlen != region->length()) {
 701
 702                                         if (region->source(0)->length() >= region->start() + nlen) {
 703
 704                                                 region->freeze ();
 705                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 706                                                 region->set_length (nlen, this);
 707                                                 region->thaw ("updated");
 708
 709                                                 if (origlen == 1) {
 710                                                         /* our special initial length */
 711                                                         add_region_view_internal (region, false);
 712                                                 }
 713
 714                                                 /* also hide rect */
 715                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 716                                                 rect->hide();
 717
 718                                         }
 719                                 }
 720                         }
 721
 722                         iter = tmp;
 723                 }
 724         }
 725 }
 726
 727 void
 728 AudioStreamView::show_all_xfades ()
 729 {
 730         foreach_crossfadeview (&CrossfadeView::show);
 731         crossfades_visible = true;
 732 }
 733
 734 void
 735 AudioStreamView::hide_all_xfades ()
 736 {
 737         foreach_crossfadeview (&CrossfadeView::hide);
 738         crossfades_visible = false;
 739 }
 740
 741 void
 742 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 743 {
 744         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 745                 if ((*i)->crossfade->involves (rv.audio_region())) {
 746                         (*i)->fake_hide ();
 747                 }
 748         }
 749 }
 750
 751 void
 752 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 753 {
 754         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 755                 if ((*i)->crossfade->involves (rv.audio_region()) && (*i)->visible() && layer_display != Stacked) {
 756                         (*i)->show ();
 757                 }
 758         }
 759 }
 760
 761 void
 762 AudioStreamView::color_handler (ColorID id, uint32_t val)
 763 {
 764         switch (id) {
 765         case cAudioTrackBase:
 766                 if (_trackview.is_track()) {
 767                         canvas_rect->property_fill_color_rgba() = val;
 768                 }
 769                 break;
 770         case cAudioBusBase:
 771                 if (!_trackview.is_track()) {
 772                         canvas_rect->property_fill_color_rgba() = val;
 773                 }
 774                 break;
 775         case cAudioTrackOutline:
 776                 canvas_rect->property_outline_color_rgba() = val;
 777                 break;
 778
 779         default:
 780                 break;
 781         }
 782 }
 783
 784 void
 785 AudioStreamView::update_contents_y_position_and_height ()
 786 {
 787         StreamView::update_contents_y_position_and_height ();
 788
 789         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 790                 if (layer_display == Overlaid) {
 791                         (*i)->show ();
 792                         (*i)->set_y_position_and_height (0, height);
 793                 } else {
 794                         (*i)->hide ();
 795                 }
 796         }
 797 }