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         color_handler ();
  65         _amplitude_above_axis = 1.0;
  66
  67         use_rec_regions = tv.editor.show_waveforms_recording ();
  68 }
  69
  70 AudioStreamView::~AudioStreamView ()
  71 {
  72 }
  73
  74 int
  75 AudioStreamView::set_samples_per_unit (gdouble spp)
  76 {
  77         StreamView::set_samples_per_unit(spp);
  78
  79         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
  80                 (*xi)->set_samples_per_unit (spp);
  81         }
  82
  83         return 0;
  84 }
  85
  86 int
  87 AudioStreamView::set_amplitude_above_axis (gdouble app)
  88 {
  89         RegionViewList::iterator i;
  90
  91         if (app < 1.0) {
  92                 return -1;
  93         }
  94
  95         _amplitude_above_axis = app;
  96
  97         for (i = region_views.begin(); i != region_views.end(); ++i) {
  98                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
  99                 if (arv)
 100                         arv->set_amplitude_above_axis (app);
 101         }
 102
 103         return 0;
 104 }
 105
 106 RegionView*
 107 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
 108 {
 109         AudioRegionView *region_view = 0;
 110
 111         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 112
 113         if (region == 0) {
 114                 return NULL;
 115         }
 116
 117         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 118                 if ((*i)->region() == r) {
 119
 120                         /* great. we already have a AudioRegionView for this Region. use it again. */
 121
 122                         (*i)->set_valid (true);
 123
 124                         // this might not be necessary
 125                         AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 126                         if (arv) {
 127                                 arv->set_waveform_scale (_waveform_scale);
 128                                 arv->set_waveform_shape (_waveform_shape);
 129                         }
 130
 131                         return NULL;
 132                 }
 133         }
 134
 135         switch (_trackview.audio_track()->mode()) {
 136         case Normal:
 137                 if (recording) {
 138                         region_view = new AudioRegionView (canvas_group, _trackview, region,
 139                                                    _samples_per_unit, region_color, recording, TimeAxisViewItem::Visibility(TimeAxisViewItem::ShowFrame | TimeAxisViewItem::HideFrameRight));
 140                 } else {
 141                         region_view = new AudioRegionView (canvas_group, _trackview, region,
 142                                                    _samples_per_unit, region_color);
 143                 }
 144                 break;
 145         case Destructive:
 146                 region_view = new TapeAudioRegionView (canvas_group, _trackview, region,
 147                                                        _samples_per_unit, region_color);
 148                 break;
 149         default:
 150                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 151                 /*NOTREACHED*/
 152
 153         }
 154
 155         region_view->init (region_color, wait_for_waves);
 156         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 157         region_views.push_front (region_view);
 158
 159         /* if its the special single-sample length that we use for rec-regions, make it
 160            insensitive to events
 161         */
 162
 163         if (region->length() == 1) {
 164                 region_view->set_sensitive (false);
 165         }
 166
 167         /* if this was the first one, then lets query the waveform scale and shape.
 168            otherwise, we set it to the current value */
 169
 170         if (region_views.size() == 1) {
 171                 if (region_view->waveform_logscaled()) {
 172                         _waveform_scale = LogWaveform;
 173                 } else {
 174                         _waveform_scale = LinearWaveform;
 175                 }
 176
 177                 if (region_view->waveform_rectified()) {
 178                         _waveform_shape = Rectified;
 179                 } else {
 180                         _waveform_shape = Traditional;
 181                 }
 182         }
 183         else {
 184                 region_view->set_waveform_scale(_waveform_scale);
 185                 region_view->set_waveform_shape(_waveform_shape);
 186         }
 187
 188         /* follow global waveform setting */
 189
 190         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 191
 192         /* catch regionview going away */
 193         region->GoingAway.connect (bind (mem_fun (*this, &AudioStreamView::remove_region_view), boost::weak_ptr<Region> (r)));
 194
 195         RegionViewAdded (region_view);
 196
 197         return region_view;
 198 }
 199
 200 void
 201 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 202 {
 203         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), weak_r));
 204
 205         boost::shared_ptr<Region> r (weak_r.lock());
 206
 207         if (!r) {
 208                 return;
 209         }
 210
 211         if (!_trackview.session().deletion_in_progress()) {
 212
 213                 for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 214                         list<CrossfadeView*>::iterator tmp;
 215
 216                         tmp = i;
 217                         ++tmp;
 218
 219                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 220                         if (ar && (*i)->crossfade->involves (ar)) {
 221                                 delete *i;
 222                                 crossfade_views.erase (i);
 223                         }
 224
 225                         i = tmp;
 226                 }
 227         }
 228
 229         StreamView::remove_region_view(r);
 230 }
 231
 232 void
 233 AudioStreamView::undisplay_diskstream ()
 234 {
 235         StreamView::undisplay_diskstream();
 236
 237         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 238                 delete *i;
 239         }
 240
 241         crossfade_views.clear ();
 242 }
 243
 244 void
 245 AudioStreamView::playlist_modified_weak (boost::weak_ptr<Diskstream> ds)
 246 {
 247         boost::shared_ptr<Diskstream> sp (ds.lock());
 248         if (!sp) {
 249                 return;
 250         }
 251
 252         playlist_modified (sp);
 253 }
 254
 255 void
 256 AudioStreamView::playlist_modified (boost::shared_ptr<Diskstream> ds)
 257 {
 258         /* we do not allow shared_ptr<T> to be bound to slots */
 259         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_modified_weak), ds));
 260
 261         StreamView::playlist_modified (ds);
 262
 263         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 264
 265         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 266                 (*i)->get_canvas_group()->raise_to_top();
 267         }
 268 }
 269
 270 void
 271 AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 272 {
 273         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
 274
 275         StreamView::playlist_changed(ds);
 276
 277         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 278         if (apl)
 279                 playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
 280 }
 281
 282 void
 283 AudioStreamView::add_crossfade_weak (boost::weak_ptr<Crossfade> crossfade)
 284 {
 285         boost::shared_ptr<Crossfade> sp (crossfade.lock());
 286
 287         if (!sp) {
 288                 return;
 289         }
 290
 291         add_crossfade (sp);
 292 }
 293
 294 void
 295 AudioStreamView::add_crossfade (boost::shared_ptr<Crossfade> crossfade)
 296 {
 297         AudioRegionView* lview = 0;
 298         AudioRegionView* rview = 0;
 299
 300         /* we do not allow shared_ptr<T> to be bound to slots */
 301
 302         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade_weak), boost::weak_ptr<Crossfade> (crossfade)));
 303
 304         /* first see if we already have a CrossfadeView for this Crossfade */
 305
 306         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 307                 if ((*i)->crossfade == crossfade) {
 308
 309                         if (!crossfades_visible || layer_display == Stacked) {
 310                                 (*i)->hide();
 311                         } else {
 312                                 (*i)->show ();
 313                         }
 314                         (*i)->set_valid (true);
 315                         return;
 316                 }
 317         }
 318
 319         /* create a new one */
 320
 321         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 322                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 323
 324                 if (!lview && arv && (arv->region() == crossfade->out())) {
 325                         lview = arv;
 326                 }
 327                 if (!rview && arv && (arv->region() == crossfade->in())) {
 328                         rview = arv;
 329                 }
 330         }
 331
 332         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 333                                                _trackview,
 334                                                 crossfade,
 335                                                _samples_per_unit,
 336                                                region_color,
 337                                                *lview, *rview);
 338         cv->set_valid (true);
 339         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 340         crossfade_views.push_back (cv);
 341         if (!Config->get_xfades_visible() || !crossfades_visible || layer_display == Stacked) {
 342                 cv->hide ();
 343         }
 344 }
 345
 346 void
 347 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 348 {
 349         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), r));
 350
 351         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 352
 353         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 354                 if ((*i)->crossfade == xfade) {
 355                         delete *i;
 356                         crossfade_views.erase (i);
 357                         break;
 358                 }
 359         }
 360 }
 361
 362 void
 363 AudioStreamView::redisplay_diskstream ()
 364 {
 365         list<RegionView *>::iterator i, tmp;
 366         list<CrossfadeView*>::iterator xi, tmpx;
 367
 368         for (i = region_views.begin(); i != region_views.end(); ++i) {
 369                 (*i)->set_valid (false);
 370         }
 371
 372         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 373                 (*xi)->set_valid (false);
 374                 if ((*xi)->visible() && layer_display != Stacked) {
 375                         (*xi)->show ();
 376                 }
 377         }
 378
 379         if (_trackview.is_audio_track()) {
 380                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 381
 382                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(_trackview.get_diskstream()->playlist());
 383                 if (apl)
 384                         apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
 385         }
 386
 387         RegionViewList copy;
 388
 389         /* Place regions */
 390         for (i = region_views.begin(); i != region_views.end(); ) {
 391                 tmp = i;
 392                 tmp++;
 393
 394                 if (!(*i)->is_valid()) {
 395                         delete *i;
 396                         region_views.erase (i);
 397                         i = tmp;
 398                         continue;
 399                 } else {
 400                         (*i)->enable_display(true);
 401                 }
 402
 403                 /* Sort regionviews by layer so that when we call region_layered ()
 404                    the canvas layering works out (in non-stacked mode). */
 405
 406                 if (copy.size() == 0) {
 407                         copy.push_front((*i));
 408                         i = tmp;
 409                         continue;
 410                 }
 411
 412                 RegionViewList::iterator k = copy.begin();
 413                 RegionViewList::iterator l = copy.end();
 414                 l--;
 415
 416                 if ((*i)->region()->layer() <= (*k)->region()->layer()) {
 417                         copy.push_front((*i));
 418                         i = tmp;
 419                         continue;
 420                 } else if ((*i)->region()->layer() >= (*l)->region()->layer()) {
 421                         copy.push_back((*i));
 422                         i = tmp;
 423                         continue;
 424                 }
 425
 426                 for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
 427                         if ((*j)->region()->layer() >= (*i)->region()->layer()) {
 428                                 copy.insert(j, (*i));
 429                                 break;
 430                         }
 431                 }
 432
 433                 i = tmp;
 434         }
 435
 436         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 437                 tmpx = xi;
 438                 tmpx++;
 439
 440                 if (!(*xi)->valid()) {
 441                         delete *xi;
 442                         crossfade_views.erase (xi);
 443                 }
 444
 445                 xi = tmpx;
 446         }
 447
 448         /* now fix layering */
 449
 450         for (RegionViewList::iterator i = copy.begin(); i != copy.end(); ++i) {
 451                 region_layered (*i);
 452         }
 453 }
 454
 455 void
 456 AudioStreamView::set_show_waveforms (bool yn)
 457 {
 458         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 459                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 460                 if (arv) {
 461                         arv->set_waveform_visible (yn);
 462                 }
 463         }
 464 }
 465
 466 void
 467 AudioStreamView::set_waveform_shape (WaveformShape shape)
 468 {
 469         for (RegionViewList::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_shape (shape);
 473         }
 474         _waveform_shape = shape;
 475 }
 476
 477 void
 478 AudioStreamView::set_waveform_scale (WaveformScale scale)
 479 {
 480         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 481                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 482                 if (arv)
 483                         arv->set_waveform_scale (scale);
 484         }
 485         _waveform_scale = scale;
 486 }
 487
 488 void
 489 AudioStreamView::setup_rec_box ()
 490 {
 491         //cerr << _trackview.name() << " streamview SRB region_views.size() = " << region_views.size() << endl;
 492
 493         if (_trackview.session().transport_rolling()) {
 494
 495                 // cerr << "\trolling\n";
 496
 497                 if (!rec_active &&
 498                     _trackview.session().record_status() == Session::Recording &&
 499                     _trackview.get_diskstream()->record_enabled()) {
 500                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 501
 502                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 503
 504                                 SourceList sources;
 505
 506                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 507                                         (*prc).disconnect();
 508                                 }
 509                                 rec_data_ready_connections.clear();
 510
 511                                 // FIXME
 512                                 boost::shared_ptr<AudioDiskstream> ads = boost::dynamic_pointer_cast<AudioDiskstream>(_trackview.get_diskstream());
 513                                 assert(ads);
 514
 515                                 for (uint32_t n=0; n < ads->n_channels().n_audio(); ++n) {
 516                                         boost::shared_ptr<AudioFileSource> src = boost::static_pointer_cast<AudioFileSource> (ads->write_source (n));
 517                                         if (src) {
 518                                                 sources.push_back (src);
 519
 520                                                 rec_data_ready_connections.push_back (src->PeakRangeReady.connect (bind
 521                                                         (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), boost::weak_ptr<Source>(src))));
 522                                         }
 523                                 }
 524
 525                                 // handle multi
 526
 527                                 nframes_t start = 0;
 528                                 if (rec_regions.size() > 0) {
 529                                         start = rec_regions.back().first->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 530                                 }
 531
 532                                 boost::shared_ptr<AudioRegion> region (boost::dynamic_pointer_cast<AudioRegion>
 533                                                                        (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 534                                 assert(region);
 535                                 region->set_position (_trackview.session().transport_frame(), this);
 536
 537                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 538                         }
 539
 540                         /* start a new rec box */
 541
 542                         boost::shared_ptr<AudioTrack> at;
 543
 544                         at = _trackview.audio_track(); /* we know what it is already */
 545                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 546                         nframes_t frame_pos = ds->current_capture_start ();
 547                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 548                         gdouble xend;
 549                         uint32_t fill_color;
 550
 551                         switch (_trackview.audio_track()->mode()) {
 552                         case Normal:
 553                                 xend = xstart;
 554                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 555                                 break;
 556
 557                         case Destructive:
 558                                 xend = xstart + 2;
 559                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 560                                 /* make the recording rect translucent to allow
 561                                    the user to see the peak data coming in, etc.
 562                                 */
 563                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 564                                 break;
 565                         }
 566
 567                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 568                         rec_rect->property_x1() = xstart;
 569                         rec_rect->property_y1() = 1.0;
 570                         rec_rect->property_x2() = xend;
 571                         rec_rect->property_y2() = (double) _trackview.current_height() - 1;
 572                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 573                         rec_rect->property_outline_what() = 0x1 | 0x2 | 0x4 | 0x8;
 574                         rec_rect->property_fill_color_rgba() = fill_color;
 575                         rec_rect->lower_to_bottom();
 576
 577                         RecBoxInfo recbox;
 578                         recbox.rectangle = rec_rect;
 579                         recbox.start = _trackview.session().transport_frame();
 580                         recbox.length = 0;
 581
 582                         rec_rects.push_back (recbox);
 583
 584                         screen_update_connection.disconnect();
 585                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &AudioStreamView::update_rec_box));
 586                         rec_updating = true;
 587                         rec_active = true;
 588
 589                 } else if (rec_active &&
 590                            (_trackview.session().record_status() != Session::Recording ||
 591                             !_trackview.get_diskstream()->record_enabled())) {
 592                         screen_update_connection.disconnect();
 593                         rec_active = false;
 594                         rec_updating = false;
 595                 }
 596
 597         } else {
 598
 599                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 600
 601                 if (!rec_rects.empty() || !rec_regions.empty()) {
 602
 603                         /* disconnect rapid update */
 604                         screen_update_connection.disconnect();
 605
 606                         for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 607                                 (*prc).disconnect();
 608                         }
 609                         rec_data_ready_connections.clear();
 610
 611                         rec_updating = false;
 612                         rec_active = false;
 613
 614                         /* remove temp regions */
 615
 616                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 617                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 618
 619                                 tmp = iter;
 620                                 ++tmp;
 621
 622                                 (*iter).first->drop_references ();
 623
 624                                 iter = tmp;
 625                         }
 626
 627                         rec_regions.clear();
 628
 629                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 630
 631                         /* transport stopped, clear boxes */
 632                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 633                                 RecBoxInfo &rect = (*iter);
 634                                 delete rect.rectangle;
 635                         }
 636
 637                         rec_rects.clear();
 638
 639                 }
 640         }
 641 }
 642
 643 void
 644 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 645 {
 646         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 647                 ((*i)->*pmf) ();
 648         }
 649 }
 650
 651 void
 652 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 653 {
 654         ENSURE_GUI_THREAD(bind (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), start, cnt, weak_src));
 655
 656         boost::shared_ptr<Source> src (weak_src.lock());
 657
 658         if (!src) {
 659                 return;
 660         }
 661
 662         // this is called from the peak building thread
 663
 664         if (rec_data_ready_map.size() == 0 || start+cnt > last_rec_data_frame) {
 665                 last_rec_data_frame = start + cnt;
 666         }
 667
 668         rec_data_ready_map[src] = true;
 669
 670         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().n_audio()) {
 671                 this->update_rec_regions ();
 672                 rec_data_ready_map.clear();
 673         }
 674 }
 675
 676 void
 677 AudioStreamView::update_rec_regions ()
 678 {
 679         if (use_rec_regions) {
 680                 uint32_t n = 0;
 681
 682                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 683
 684                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 685
 686                         tmp = iter;
 687                         ++tmp;
 688
 689                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 690                                 /* rect already hidden, this region is done */
 691                                 iter = tmp;
 692                                 continue;
 693                         }
 694
 695                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 696                         if (!region) {
 697                                 continue;
 698                         }
 699
 700                         nframes_t origlen = region->length();
 701
 702                         if (region == rec_regions.back().first && rec_active) {
 703
 704                                 if (last_rec_data_frame > region->start()) {
 705
 706                                         nframes_t nlen = last_rec_data_frame - region->start();
 707
 708                                         if (nlen != region->length()) {
 709
 710                                                 region->freeze ();
 711                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 712                                                 region->set_length (nlen, this);
 713                                                 region->thaw ("updated");
 714
 715                                                 if (origlen == 1) {
 716                                                         /* our special initial length */
 717                                                         add_region_view_internal (region, false, true);
 718                                                 }
 719
 720                                                 /* also update rect */
 721                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 722                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 723                                                 rect->property_x2() = xend;
 724                                         }
 725                                 }
 726
 727                         } else {
 728
 729                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 730
 731                                 if (nlen != region->length()) {
 732
 733                                         if (region->source(0)->length() >= region->start() + nlen) {
 734
 735                                                 region->freeze ();
 736                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 737                                                 region->set_length (nlen, this);
 738                                                 region->thaw ("updated");
 739
 740                                                 if (origlen == 1) {
 741                                                         /* our special initial length */
 742                                                         add_region_view_internal (region, false, true);
 743                                                 }
 744
 745                                                 /* also hide rect */
 746                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 747                                                 rect->hide();
 748
 749                                         }
 750                                 }
 751                         }
 752
 753                         iter = tmp;
 754                 }
 755         }
 756 }
 757
 758 void
 759 AudioStreamView::show_all_fades ()
 760 {
 761         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 762                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 763                 if (arv) {
 764                         arv->set_fade_visibility (true);
 765                 }
 766         }
 767 }
 768
 769 void
 770 AudioStreamView::hide_all_fades ()
 771 {
 772         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 773                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 774                 if (arv) {
 775                         arv->set_fade_visibility (false);
 776                 }
 777         }
 778 }
 779
 780 void
 781 AudioStreamView::show_all_xfades ()
 782 {
 783         foreach_crossfadeview (&CrossfadeView::show);
 784         crossfades_visible = true;
 785 }
 786
 787 void
 788 AudioStreamView::hide_all_xfades ()
 789 {
 790         foreach_crossfadeview (&CrossfadeView::hide);
 791         crossfades_visible = false;
 792 }
 793
 794 void
 795 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 796 {
 797         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 798                 if ((*i)->crossfade->involves (rv.audio_region())) {
 799                         (*i)->fake_hide ();
 800                 }
 801         }
 802 }
 803
 804 void
 805 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 806 {
 807         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 808                 if ((*i)->crossfade->involves (rv.audio_region()) && (*i)->visible() && layer_display != Stacked) {
 809                         (*i)->show ();
 810                 }
 811         }
 812 }
 813
 814 void
 815 AudioStreamView::color_handler ()
 816 {
 817         //case cAudioTrackBase:
 818         if (_trackview.is_track()) {
 819                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 820         }
 821
 822         //case cAudioBusBase:
 823         if (!_trackview.is_track()) {
 824                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 825         }
 826
 827 }
 828
 829 void
 830 AudioStreamView::update_contents_height ()
 831 {
 832         StreamView::update_contents_height ();
 833
 834         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 835                 if (layer_display == Overlaid) {
 836                         (*i)->show ();
 837                         (*i)->set_height (height);
 838                 } else {
 839                         (*i)->hide ();
 840                 }
 841         }
 842 }