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 #include <utility>
  22
  23 #include <gtkmm.h>
  24
  25 #include <gtkmm2ext/gtk_ui.h>
  26
  27 #include <ardour/audioplaylist.h>
  28 #include <ardour/audioregion.h>
  29 #include <ardour/audiofilesource.h>
  30 #include <ardour/audio_diskstream.h>
  31 #include <ardour/audio_track.h>
  32 #include <ardour/playlist_templates.h>
  33 #include <ardour/source.h>
  34 #include <ardour/region_factory.h>
  35
  36 #include "audio_streamview.h"
  37 #include "audio_region_view.h"
  38 #include "tape_region_view.h"
  39 #include "audio_time_axis.h"
  40 #include "canvas-waveview.h"
  41 #include "canvas-simplerect.h"
  42 #include "region_selection.h"
  43 #include "selection.h"
  44 #include "public_editor.h"
  45 #include "ardour_ui.h"
  46 #include "crossfade_view.h"
  47 #include "rgb_macros.h"
  48 #include "gui_thread.h"
  49 #include "utils.h"
  50
  51 #include "i18n.h"
  52
  53 using namespace std;
  54 using namespace ARDOUR;
  55 using namespace PBD;
  56 using namespace Editing;
  57
  58 AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
  59         : StreamView (tv)
  60 {
  61         crossfades_visible = true;
  62         _waveform_scale = LinearWaveform;
  63         _waveform_shape = Traditional;
  64
  65         if (tv.is_track())
  66                 stream_base_color = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
  67         else
  68                 stream_base_color = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
  69
  70         canvas_rect->property_fill_color_rgba() = stream_base_color;
  71         canvas_rect->property_outline_color_rgba() = RGBA_BLACK;
  72
  73         _amplitude_above_axis = 1.0;
  74
  75         use_rec_regions = tv.editor.show_waveforms_recording ();
  76
  77
  78 }
  79
  80 AudioStreamView::~AudioStreamView ()
  81 {
  82 }
  83
  84 int
  85 AudioStreamView::set_samples_per_unit (gdouble spp)
  86 {
  87         StreamView::set_samples_per_unit(spp);
  88
  89         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
  90                 (*xi)->set_samples_per_unit (spp);
  91         }
  92
  93         return 0;
  94 }
  95
  96 int
  97 AudioStreamView::set_amplitude_above_axis (gdouble app)
  98 {
  99         RegionViewList::iterator i;
 100
 101         if (app < 1.0) {
 102                 return -1;
 103         }
 104
 105         _amplitude_above_axis = app;
 106
 107         for (i = region_views.begin(); i != region_views.end(); ++i) {
 108                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 109                 if (arv)
 110                         arv->set_amplitude_above_axis (app);
 111         }
 112
 113         return 0;
 114 }
 115
 116 RegionView*
 117 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves)
 118 {
 119         AudioRegionView *region_view = 0;
 120
 121         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 122
 123         if (region == 0) {
 124                 return NULL;
 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 NULL;
 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         return region_view;
 204 }
 205
 206 void
 207 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 208 {
 209         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), weak_r));
 210
 211         boost::shared_ptr<Region> r (weak_r.lock());
 212
 213         if (!r) {
 214                 return;
 215         }
 216
 217         if (!_trackview.session().deletion_in_progress()) {
 218
 219                 for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 220                         list<CrossfadeView*>::iterator tmp;
 221
 222                         tmp = i;
 223                         ++tmp;
 224
 225                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 226                         if (ar && (*i)->crossfade->involves (ar)) {
 227                                 delete *i;
 228                                 crossfade_views.erase (i);
 229                         }
 230
 231                         i = tmp;
 232                 }
 233         }
 234
 235         StreamView::remove_region_view(r);
 236 }
 237
 238 void
 239 AudioStreamView::undisplay_diskstream ()
 240 {
 241         StreamView::undisplay_diskstream();
 242
 243         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 244                 delete *i;
 245         }
 246
 247         crossfade_views.clear ();
 248 }
 249
 250 void
 251 AudioStreamView::playlist_modified_weak (boost::weak_ptr<Diskstream> ds)
 252 {
 253         boost::shared_ptr<Diskstream> sp (ds.lock());
 254         if (!sp) {
 255                 return;
 256         }
 257
 258         playlist_modified (sp);
 259 }
 260
 261 void
 262 AudioStreamView::playlist_modified (boost::shared_ptr<Diskstream> ds)
 263 {
 264         /* we do not allow shared_ptr<T> to be bound to slots */
 265         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_modified_weak), ds));
 266
 267         StreamView::playlist_modified (ds);
 268
 269         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 270
 271         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 272                 (*i)->get_canvas_group()->raise_to_top();
 273         }
 274 }
 275
 276 void
 277 AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 278 {
 279         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
 280
 281         StreamView::playlist_changed(ds);
 282
 283         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 284         if (apl)
 285                 playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
 286 }
 287
 288 void
 289 AudioStreamView::add_crossfade_weak (boost::weak_ptr<Crossfade> crossfade)
 290 {
 291         boost::shared_ptr<Crossfade> sp (crossfade.lock());
 292
 293         if (!sp) {
 294                 return;
 295         }
 296
 297         add_crossfade (sp);
 298 }
 299
 300 void
 301 AudioStreamView::add_crossfade (boost::shared_ptr<Crossfade> crossfade)
 302 {
 303         AudioRegionView* lview = 0;
 304         AudioRegionView* rview = 0;
 305
 306         /* we do not allow shared_ptr<T> to be bound to slots */
 307
 308         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade_weak), boost::weak_ptr<Crossfade> (crossfade)));
 309
 310         /* first see if we already have a CrossfadeView for this Crossfade */
 311
 312         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 313                 if ((*i)->crossfade == crossfade) {
 314
 315                         if (!crossfades_visible || layer_display == Stacked) {
 316                                 (*i)->hide();
 317                         } else {
 318                                 (*i)->show ();
 319                         }
 320                         (*i)->set_valid (true);
 321                         return;
 322                 }
 323         }
 324
 325         /* create a new one */
 326
 327         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 328                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 329
 330                 if (!lview && arv && (arv->region() == crossfade->out())) {
 331                         lview = arv;
 332                 }
 333                 if (!rview && arv && (arv->region() == crossfade->in())) {
 334                         rview = arv;
 335                 }
 336         }
 337
 338         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 339                                                _trackview,
 340                                                 crossfade,
 341                                                _samples_per_unit,
 342                                                region_color,
 343                                                *lview, *rview);
 344         cv->set_valid (true);
 345         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 346         crossfade_views.push_back (cv);
 347         if (!Config->get_xfades_visible() || !crossfades_visible || layer_display == Stacked) {
 348                 cv->hide ();
 349         }
 350 }
 351
 352 void
 353 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 354 {
 355         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), r));
 356
 357         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 358
 359         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 360                 if ((*i)->crossfade == xfade) {
 361                         delete *i;
 362                         crossfade_views.erase (i);
 363                         break;
 364                 }
 365         }
 366 }
 367
 368 void
 369 AudioStreamView::redisplay_diskstream ()
 370 {
 371         list<RegionView *>::iterator i, tmp;
 372         list<CrossfadeView*>::iterator xi, tmpx;
 373
 374         for (i = region_views.begin(); i != region_views.end(); ++i) {
 375                 (*i)->set_valid (false);
 376         }
 377
 378         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 379                 (*xi)->set_valid (false);
 380                 if ((*xi)->visible() && layer_display != Stacked) {
 381                         (*xi)->show ();
 382                 }
 383         }
 384
 385         if (_trackview.is_audio_track()) {
 386                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 387
 388                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(_trackview.get_diskstream()->playlist());
 389                 if (apl)
 390                         apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
 391         }
 392
 393         RegionViewList  copy;
 394
 395         for (i = region_views.begin(); i != region_views.end(); ) {
 396                 tmp = i;
 397                 tmp++;
 398
 399                 if (!(*i)->is_valid()) {
 400                         delete *i;
 401                         region_views.erase (i);
 402                         i = tmp;
 403                         continue;
 404                 } else {
 405                         (*i)->enable_display(true);
 406                 }
 407
 408                 /*
 409                    sort regionviews by layer so that when we call region_layered ()
 410                    the canvas layering works out (in non-stacked mode).
 411                 */
 412
 413                 if (copy.size() == 0) {
 414                         copy.push_front((*i));
 415                         i = tmp;
 416                         continue;
 417                 }
 418
 419                 RegionViewList::iterator k = copy.begin();
 420                 RegionViewList::iterator l = copy.end();
 421                 l--;
 422
 423                 if ((*i)->region()->layer() <= (*k)->region()->layer()) {
 424                         copy.push_front((*i));
 425                         i = tmp;
 426                         continue;
 427                 } else if ((*i)->region()->layer() >= (*l)->region()->layer()) {
 428                         copy.push_back((*i));
 429                         i = tmp;
 430                         continue;
 431                 }
 432
 433                 for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
 434
 435                         if ((*j)->region()->layer() >= (*i)->region()->layer()) {
 436                                 copy.insert(j, (*i));
 437                                 break;
 438                         }
 439                 }
 440
 441                 i = tmp;
 442
 443         }
 444
 445         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 446                 tmpx = xi;
 447                 tmpx++;
 448
 449                 if (!(*xi)->valid()) {
 450                         delete *xi;
 451                         crossfade_views.erase (xi);
 452                 }
 453
 454                 xi = tmpx;
 455         }
 456
 457         /* now fix canvas layering */
 458
 459         for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
 460                         (*j)->enable_display(true);
 461                         (*j)->set_y_position_and_height(0, height);
 462                         region_layered (*j);
 463         }
 464 }
 465
 466 void
 467 AudioStreamView::set_show_waveforms (bool yn)
 468 {
 469         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 470                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 471                 if (arv)
 472                         arv->set_waveform_visible (yn);
 473         }
 474 }
 475
 476 void
 477 AudioStreamView::set_waveform_shape (WaveformShape shape)
 478 {
 479         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 480                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 481                 if (arv)
 482                         arv->set_waveform_shape (shape);
 483         }
 484         _waveform_shape = shape;
 485 }
 486
 487 void
 488 AudioStreamView::set_waveform_scale (WaveformScale scale)
 489 {
 490         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 491                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 492                 if (arv)
 493                         arv->set_waveform_scale (scale);
 494         }
 495         _waveform_scale = scale;
 496 }
 497
 498 void
 499 AudioStreamView::setup_rec_box ()
 500 {
 501         // cerr << _trackview.name() << " streamview SRB\n";
 502
 503         if (_trackview.session().transport_rolling()) {
 504
 505                 // cerr << "\trolling\n";
 506
 507                 if (!rec_active &&
 508                     _trackview.session().record_status() == Session::Recording &&
 509                     _trackview.get_diskstream()->record_enabled()) {
 510
 511                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 512
 513                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 514
 515                                 SourceList sources;
 516
 517                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 518                                         (*prc).disconnect();
 519                                 }
 520                                 rec_data_ready_connections.clear();
 521
 522                                 // FIXME
 523                                 boost::shared_ptr<AudioDiskstream> ads = boost::dynamic_pointer_cast<AudioDiskstream>(_trackview.get_diskstream());
 524                                 assert(ads);
 525
 526                                 for (uint32_t n=0; n < ads->n_channels().n_audio(); ++n) {
 527                                         boost::shared_ptr<AudioFileSource> src = boost::static_pointer_cast<AudioFileSource> (ads->write_source (n));
 528                                         if (src) {
 529                                                 sources.push_back (src);
 530
 531                                                 rec_data_ready_connections.push_back (src->PeakRangeReady.connect (bind
 532                                                         (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), boost::weak_ptr<Source>(src))));
 533                                         }
 534                                 }
 535
 536                                 // handle multi
 537
 538                                 nframes_t start = 0;
 539                                 if (rec_regions.size() > 0) {
 540                                         start = rec_regions.back().first->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 541                                 }
 542
 543                                 boost::shared_ptr<AudioRegion> region (boost::dynamic_pointer_cast<AudioRegion>
 544                                                                        (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 545                                 assert(region);
 546                                 region->set_position (_trackview.session().transport_frame(), this);
 547
 548                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 549                         }
 550
 551                         /* start a new rec box */
 552
 553                         boost::shared_ptr<AudioTrack> at;
 554
 555                         at = _trackview.audio_track(); /* we know what it is already */
 556                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 557                         nframes_t frame_pos = ds->current_capture_start ();
 558                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 559                         gdouble xend;
 560                         uint32_t fill_color;
 561
 562                         switch (_trackview.audio_track()->mode()) {
 563                         case Normal:
 564                                 xend = xstart;
 565                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 566                                 break;
 567
 568                         case Destructive:
 569                                 xend = xstart + 2;
 570                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 571                                 /* make the recording rect translucent to allow
 572                                    the user to see the peak data coming in, etc.
 573                                 */
 574                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 575                                 break;
 576                         }
 577
 578                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 579                         rec_rect->property_x1() = xstart;
 580                         rec_rect->property_y1() = 1.0;
 581                         rec_rect->property_x2() = xend;
 582                         rec_rect->property_y2() = (double) _trackview.height - 1;
 583                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 584                         rec_rect->property_fill_color_rgba() = fill_color;
 585                         rec_rect->lower_to_bottom();
 586
 587                         RecBoxInfo recbox;
 588                         recbox.rectangle = rec_rect;
 589                         recbox.start = _trackview.session().transport_frame();
 590                         recbox.length = 0;
 591
 592                         rec_rects.push_back (recbox);
 593
 594                         screen_update_connection.disconnect();
 595                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));
 596                         rec_updating = true;
 597                         rec_active = true;
 598
 599                 } else if (rec_active &&
 600                            (_trackview.session().record_status() != Session::Recording ||
 601                             !_trackview.get_diskstream()->record_enabled())) {
 602
 603                         screen_update_connection.disconnect();
 604                         rec_active = false;
 605                         rec_updating = false;
 606
 607                 }
 608
 609         } else {
 610
 611                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 612
 613                 if (!rec_rects.empty() || !rec_regions.empty()) {
 614
 615                         /* disconnect rapid update */
 616                         screen_update_connection.disconnect();
 617
 618                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 619                                 (*prc).disconnect();
 620                         }
 621                         rec_data_ready_connections.clear();
 622
 623                         rec_updating = false;
 624                         rec_active = false;
 625
 626                         /* remove temp regions */
 627
 628                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 629                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 630
 631                                 tmp = iter;
 632                                 ++tmp;
 633
 634                                 (*iter).first->drop_references ();
 635
 636                                 iter = tmp;
 637                         }
 638
 639                         rec_regions.clear();
 640
 641                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 642
 643                         /* transport stopped, clear boxes */
 644                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 645                                 RecBoxInfo &rect = (*iter);
 646                                 delete rect.rectangle;
 647                         }
 648
 649                         rec_rects.clear();
 650
 651                 }
 652         }
 653 }
 654
 655 void
 656 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 657 {
 658         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 659                 ((*i)->*pmf) ();
 660         }
 661 }
 662
 663 void
 664 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 665 {
 666         ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, weak_src));
 667
 668         boost::shared_ptr<Source> src (weak_src.lock());
 669
 670         if (!src) {
 671                 return;
 672         }
 673
 674         // this is called from the peak building thread
 675
 676         if (rec_data_ready_map.size() == 0 || start+cnt > last_rec_data_frame) {
 677                 last_rec_data_frame = start + cnt;
 678         }
 679
 680         rec_data_ready_map[src] = true;
 681
 682         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().n_audio()) {
 683                 this->update_rec_regions ();
 684                 rec_data_ready_map.clear();
 685         }
 686 }
 687
 688 void
 689 AudioStreamView::update_rec_regions ()
 690 {
 691         if (use_rec_regions) {
 692
 693                 uint32_t n = 0;
 694
 695                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 696
 697                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 698
 699                         tmp = iter;
 700                         ++tmp;
 701
 702                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 703                                 /* rect already hidden, this region is done */
 704                                 iter = tmp;
 705                                 continue;
 706                         }
 707
 708                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 709                         if (!region) {
 710                                 continue;
 711                         }
 712
 713                         nframes_t origlen = region->length();
 714
 715                         if (region == rec_regions.back().first && rec_active) {
 716
 717                                 if (last_rec_data_frame > region->start()) {
 718
 719                                         nframes_t nlen = last_rec_data_frame - region->start();
 720
 721                                         if (nlen != region->length()) {
 722
 723                                                 region->freeze ();
 724                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 725                                                 region->set_length (nlen, this);
 726                                                 region->thaw ("updated");
 727
 728                                                 if (origlen == 1) {
 729                                                         /* our special initial length */
 730                                                         add_region_view_internal (region, false);
 731                                                 }
 732
 733                                                 /* also update rect */
 734                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 735                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 736                                                 rect->property_x2() = xend;
 737                                         }
 738                                 }
 739
 740                         } else {
 741
 742                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 743
 744                                 if (nlen != region->length()) {
 745
 746                                         if (region->source(0)->length() >= region->start() + nlen) {
 747
 748                                                 region->freeze ();
 749                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 750                                                 region->set_length (nlen, this);
 751                                                 region->thaw ("updated");
 752
 753                                                 if (origlen == 1) {
 754                                                         /* our special initial length */
 755                                                         add_region_view_internal (region, false);
 756                                                 }
 757
 758                                                 /* also hide rect */
 759                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 760                                                 rect->hide();
 761
 762                                         }
 763                                 }
 764                         }
 765
 766                         iter = tmp;
 767                 }
 768         }
 769 }
 770
 771 void
 772 AudioStreamView::show_all_xfades ()
 773 {
 774         foreach_crossfadeview (&CrossfadeView::show);
 775         crossfades_visible = true;
 776 }
 777
 778 void
 779 AudioStreamView::hide_all_xfades ()
 780 {
 781         foreach_crossfadeview (&CrossfadeView::hide);
 782         crossfades_visible = false;
 783 }
 784
 785 void
 786 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 787 {
 788         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 789                 if ((*i)->crossfade->involves (rv.audio_region())) {
 790                         (*i)->fake_hide ();
 791                 }
 792         }
 793 }
 794
 795 void
 796 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 797 {
 798         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 799                 if ((*i)->crossfade->involves (rv.audio_region()) && (*i)->visible() && layer_display != Stacked) {
 800                         (*i)->show ();
 801                 }
 802         }
 803 }
 804
 805 void
 806 AudioStreamView::color_handler ()
 807 {
 808         //case cAudioTrackBase:
 809         if (_trackview.is_track()) {
 810                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 811         }
 812
 813         //case cAudioBusBase:
 814         if (!_trackview.is_track()) {
 815                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 816         }
 817
 818 }
 819
 820 void
 821 AudioStreamView::update_contents_y_position_and_height ()
 822 {
 823         StreamView::update_contents_y_position_and_height ();
 824
 825         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 826                 if (layer_display == Overlaid) {
 827                         (*i)->show ();
 828                         (*i)->set_y_position_and_height (0, height);
 829                 } else {
 830                         (*i)->hide ();
 831                 }
 832         }
 833 }