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 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 RegionView*
 115 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves)
 116 {
 117         AudioRegionView *region_view = 0;
 118
 119         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 120
 121         if (region == 0) {
 122                 return NULL;
 123         }
 124
 125         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 126                 if ((*i)->region() == r) {
 127
 128                         /* great. we already have a AudioRegionView for this Region. use it again. */
 129
 130                         (*i)->set_valid (true);
 131
 132                         // this might not be necessary
 133                         AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 134                         if (arv) {
 135                                 arv->set_waveform_scale (_waveform_scale);
 136                                 arv->set_waveform_shape (_waveform_shape);
 137                         }
 138
 139                         return NULL;
 140                 }
 141         }
 142
 143         switch (_trackview.audio_track()->mode()) {
 144         case Normal:
 145                 region_view = new AudioRegionView (canvas_group, _trackview, region,
 146                                                    _samples_per_unit, region_color);
 147                 break;
 148         case Destructive:
 149                 region_view = new TapeAudioRegionView (canvas_group, _trackview, region,
 150                                                        _samples_per_unit, region_color);
 151                 break;
 152         default:
 153                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 154                 /*NOTREACHED*/
 155
 156         }
 157
 158         region_view->init (region_color, wait_for_waves);
 159         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 160         region_views.push_front (region_view);
 161
 162
 163         /* if its the special single-sample length that we use for rec-regions, make it
 164            insensitive to events
 165         */
 166
 167         if (region->length() == 1) {
 168                 region_view->set_sensitive (false);
 169         }
 170
 171         /* if this was the first one, then lets query the waveform scale and shape.
 172            otherwise, we set it to the current value */
 173
 174         if (region_views.size() == 1) {
 175                 if (region_view->waveform_logscaled()) {
 176                         _waveform_scale = LogWaveform;
 177                 } else {
 178                         _waveform_scale = LinearWaveform;
 179                 }
 180
 181                 if (region_view->waveform_rectified()) {
 182                         _waveform_shape = Rectified;
 183                 } else {
 184                         _waveform_shape = Traditional;
 185                 }
 186         }
 187         else {
 188                 region_view->set_waveform_scale(_waveform_scale);
 189                 region_view->set_waveform_shape(_waveform_shape);
 190         }
 191
 192         /* follow global waveform setting */
 193
 194         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 195
 196         /* catch regionview going away */
 197         region->GoingAway.connect (bind (mem_fun (*this, &AudioStreamView::remove_region_view), boost::weak_ptr<Region> (r)));
 198
 199         RegionViewAdded (region_view);
 200
 201         return 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
 313                         if (!crossfades_visible || layer_display == Stacked) {
 314                                 (*i)->hide();
 315                         } else {
 316                                 (*i)->show ();
 317                         }
 318                         (*i)->set_valid (true);
 319                         return;
 320                 }
 321         }
 322
 323         /* create a new one */
 324
 325         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 326                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 327
 328                 if (!lview && arv && (arv->region() == crossfade->out())) {
 329                         lview = arv;
 330                 }
 331                 if (!rview && arv && (arv->region() == crossfade->in())) {
 332                         rview = arv;
 333                 }
 334         }
 335
 336         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 337                                                _trackview,
 338                                                 crossfade,
 339                                                _samples_per_unit,
 340                                                region_color,
 341                                                *lview, *rview);
 342         cv->set_valid (true);
 343         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 344         crossfade_views.push_back (cv);
 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         RegionViewList  copy;
 392
 393         for (i = region_views.begin(); i != region_views.end(); ) {
 394                 tmp = i;
 395                 tmp++;
 396
 397                 if (!(*i)->is_valid()) {
 398                         delete *i;
 399                         region_views.erase (i);
 400                         i = tmp;
 401                         continue;
 402                 } else {
 403                         (*i)->enable_display(true);
 404                 }
 405
 406                 /*
 407                    sort regionviews by layer so that when we call region_layered ()
 408                    the canvas layering works out (in non-stacked mode).
 409                 */
 410
 411                 if (copy.size() == 0) {
 412                         copy.push_front((*i));
 413                         i = tmp;
 414                         continue;
 415                 }
 416
 417                 RegionViewList::iterator k = copy.begin();
 418                 RegionViewList::iterator l = copy.end();
 419                 l--;
 420
 421                 if ((*i)->region()->layer() <= (*k)->region()->layer()) {
 422                         copy.push_front((*i));
 423                         i = tmp;
 424                         continue;
 425                 } else if ((*i)->region()->layer() >= (*l)->region()->layer()) {
 426                         copy.push_back((*i));
 427                         i = tmp;
 428                         continue;
 429                 }
 430
 431                 for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
 432
 433                         if ((*j)->region()->layer() >= (*i)->region()->layer()) {
 434                                 copy.insert(j, (*i));
 435                                 break;
 436                         }
 437                 }
 438
 439                 i = tmp;
 440
 441         }
 442
 443         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 444                 tmpx = xi;
 445                 tmpx++;
 446
 447                 if (!(*xi)->valid()) {
 448                         delete *xi;
 449                         crossfade_views.erase (xi);
 450                 }
 451
 452                 xi = tmpx;
 453         }
 454
 455         /* now fix canvas layering */
 456
 457         for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
 458                         (*j)->enable_display(true);
 459                         (*j)->set_y_position_and_height(0, height);
 460                         region_layered (*j);
 461         }
 462 }
 463
 464 void
 465 AudioStreamView::set_show_waveforms (bool yn)
 466 {
 467         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 468                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 469                 if (arv)
 470                         arv->set_waveform_visible (yn);
 471         }
 472 }
 473
 474 void
 475 AudioStreamView::set_waveform_shape (WaveformShape shape)
 476 {
 477         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 478                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 479                 if (arv)
 480                         arv->set_waveform_shape (shape);
 481         }
 482         _waveform_shape = shape;
 483 }
 484
 485 void
 486 AudioStreamView::set_waveform_scale (WaveformScale scale)
 487 {
 488         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 489                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 490                 if (arv)
 491                         arv->set_waveform_scale (scale);
 492         }
 493         _waveform_scale = scale;
 494 }
 495
 496 void
 497 AudioStreamView::setup_rec_box ()
 498 {
 499         // cerr << _trackview.name() << " streamview SRB\n";
 500
 501         if (_trackview.session().transport_rolling()) {
 502
 503                 // cerr << "\trolling\n";
 504
 505                 if (!rec_active &&
 506                     _trackview.session().record_status() == Session::Recording &&
 507                     _trackview.get_diskstream()->record_enabled()) {
 508
 509                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 510
 511                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 512
 513                                 SourceList sources;
 514
 515                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 516                                         (*prc).disconnect();
 517                                 }
 518                                 rec_data_ready_connections.clear();
 519
 520                                 // FIXME
 521                                 boost::shared_ptr<AudioDiskstream> ads = boost::dynamic_pointer_cast<AudioDiskstream>(_trackview.get_diskstream());
 522                                 assert(ads);
 523
 524                                 for (uint32_t n=0; n < ads->n_channels().n_audio(); ++n) {
 525                                         boost::shared_ptr<AudioFileSource> src = boost::static_pointer_cast<AudioFileSource> (ads->write_source (n));
 526                                         if (src) {
 527                                                 sources.push_back (src);
 528
 529                                                 rec_data_ready_connections.push_back (src->PeakRangeReady.connect (bind
 530                                                         (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), boost::weak_ptr<Source>(src))));
 531                                         }
 532                                 }
 533
 534                                 // handle multi
 535
 536                                 nframes_t start = 0;
 537                                 if (rec_regions.size() > 0) {
 538                                         start = rec_regions.back().first->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 539                                 }
 540
 541                                 boost::shared_ptr<AudioRegion> region (boost::dynamic_pointer_cast<AudioRegion>
 542                                                                        (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 543                                 assert(region);
 544                                 region->set_position (_trackview.session().transport_frame(), this);
 545
 546                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 547                         }
 548
 549                         /* start a new rec box */
 550
 551                         boost::shared_ptr<AudioTrack> at;
 552
 553                         at = _trackview.audio_track(); /* we know what it is already */
 554                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 555                         nframes_t frame_pos = ds->current_capture_start ();
 556                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 557                         gdouble xend;
 558                         uint32_t fill_color;
 559
 560                         switch (_trackview.audio_track()->mode()) {
 561                         case Normal:
 562                                 xend = xstart;
 563                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 564                                 break;
 565
 566                         case Destructive:
 567                                 xend = xstart + 2;
 568                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 569                                 /* make the recording rect translucent to allow
 570                                    the user to see the peak data coming in, etc.
 571                                 */
 572                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 573                                 break;
 574                         }
 575
 576                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 577                         rec_rect->property_x1() = xstart;
 578                         rec_rect->property_y1() = 1.0;
 579                         rec_rect->property_x2() = xend;
 580                         rec_rect->property_y2() = (double) _trackview.height - 1;
 581                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 582                         rec_rect->property_fill_color_rgba() = fill_color;
 583                         rec_rect->lower_to_bottom();
 584
 585                         RecBoxInfo recbox;
 586                         recbox.rectangle = rec_rect;
 587                         recbox.start = _trackview.session().transport_frame();
 588                         recbox.length = 0;
 589
 590                         rec_rects.push_back (recbox);
 591
 592                         screen_update_connection.disconnect();
 593                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));
 594                         rec_updating = true;
 595                         rec_active = true;
 596
 597                 } else if (rec_active &&
 598                            (_trackview.session().record_status() != Session::Recording ||
 599                             !_trackview.get_diskstream()->record_enabled())) {
 600
 601                         screen_update_connection.disconnect();
 602                         rec_active = false;
 603                         rec_updating = false;
 604
 605                 }
 606
 607         } else {
 608
 609                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 610
 611                 if (!rec_rects.empty() || !rec_regions.empty()) {
 612
 613                         /* disconnect rapid update */
 614                         screen_update_connection.disconnect();
 615
 616                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 617                                 (*prc).disconnect();
 618                         }
 619                         rec_data_ready_connections.clear();
 620
 621                         rec_updating = false;
 622                         rec_active = false;
 623
 624                         /* remove temp regions */
 625
 626                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 627                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 628
 629                                 tmp = iter;
 630                                 ++tmp;
 631
 632                                 (*iter).first->drop_references ();
 633
 634                                 iter = tmp;
 635                         }
 636
 637                         rec_regions.clear();
 638
 639                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 640
 641                         /* transport stopped, clear boxes */
 642                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 643                                 RecBoxInfo &rect = (*iter);
 644                                 delete rect.rectangle;
 645                         }
 646
 647                         rec_rects.clear();
 648
 649                 }
 650         }
 651 }
 652
 653 void
 654 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 655 {
 656         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 657                 ((*i)->*pmf) ();
 658         }
 659 }
 660
 661 void
 662 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 663 {
 664         ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, weak_src));
 665
 666         boost::shared_ptr<Source> src (weak_src.lock());
 667
 668         if (!src) {
 669                 return;
 670         }
 671
 672         // this is called from the peak building thread
 673
 674         if (rec_data_ready_map.size() == 0 || start+cnt > last_rec_data_frame) {
 675                 last_rec_data_frame = start + cnt;
 676         }
 677
 678         rec_data_ready_map[src] = true;
 679
 680         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().n_audio()) {
 681                 this->update_rec_regions ();
 682                 rec_data_ready_map.clear();
 683         }
 684 }
 685
 686 void
 687 AudioStreamView::update_rec_regions ()
 688 {
 689         if (use_rec_regions) {
 690
 691                 uint32_t n = 0;
 692
 693                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 694
 695                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 696
 697                         tmp = iter;
 698                         ++tmp;
 699
 700                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 701                                 /* rect already hidden, this region is done */
 702                                 iter = tmp;
 703                                 continue;
 704                         }
 705
 706                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 707                         if (!region) {
 708                                 continue;
 709                         }
 710
 711                         nframes_t origlen = region->length();
 712
 713                         if (region == rec_regions.back().first && rec_active) {
 714
 715                                 if (last_rec_data_frame > region->start()) {
 716
 717                                         nframes_t nlen = last_rec_data_frame - region->start();
 718
 719                                         if (nlen != region->length()) {
 720
 721                                                 region->freeze ();
 722                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 723                                                 region->set_length (nlen, this);
 724                                                 region->thaw ("updated");
 725
 726                                                 if (origlen == 1) {
 727                                                         /* our special initial length */
 728                                                         add_region_view_internal (region, false);
 729                                                 }
 730
 731                                                 /* also update rect */
 732                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 733                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 734                                                 rect->property_x2() = xend;
 735                                         }
 736                                 }
 737
 738                         } else {
 739
 740                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 741
 742                                 if (nlen != region->length()) {
 743
 744                                         if (region->source(0)->length() >= region->start() + nlen) {
 745
 746                                                 region->freeze ();
 747                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 748                                                 region->set_length (nlen, this);
 749                                                 region->thaw ("updated");
 750
 751                                                 if (origlen == 1) {
 752                                                         /* our special initial length */
 753                                                         add_region_view_internal (region, false);
 754                                                 }
 755
 756                                                 /* also hide rect */
 757                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 758                                                 rect->hide();
 759
 760                                         }
 761                                 }
 762                         }
 763
 764                         iter = tmp;
 765                 }
 766         }
 767 }
 768
 769 void
 770 AudioStreamView::show_all_xfades ()
 771 {
 772         foreach_crossfadeview (&CrossfadeView::show);
 773         crossfades_visible = true;
 774 }
 775
 776 void
 777 AudioStreamView::hide_all_xfades ()
 778 {
 779         foreach_crossfadeview (&CrossfadeView::hide);
 780         crossfades_visible = false;
 781 }
 782
 783 void
 784 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 785 {
 786         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 787                 if ((*i)->crossfade->involves (rv.audio_region())) {
 788                         (*i)->fake_hide ();
 789                 }
 790         }
 791 }
 792
 793 void
 794 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 795 {
 796         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 797                 if ((*i)->crossfade->involves (rv.audio_region()) && (*i)->visible() && layer_display != Stacked) {
 798                         (*i)->show ();
 799                 }
 800         }
 801 }
 802
 803 void
 804 AudioStreamView::color_handler ()
 805 {
 806         //case cAudioTrackBase:
 807         if (_trackview.is_track()) {
 808                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 809         }
 810
 811         //case cAudioBusBase:
 812         if (!_trackview.is_track()) {
 813                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 814         }
 815
 816 }
 817
 818 void
 819 AudioStreamView::update_contents_y_position_and_height ()
 820 {
 821         StreamView::update_contents_y_position_and_height ();
 822
 823         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 824                 if (layer_display == Overlaid) {
 825                         (*i)->show ();
 826                         (*i)->set_y_position_and_height (0, height);
 827                 } else {
 828                         (*i)->hide ();
 829                 }
 830         }
 831 }