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, bool recording)
 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                 if (recording) {
 146                         region_view = new AudioRegionView (canvas_group, _trackview, region,
 147                                                    _samples_per_unit, region_color, recording, TimeAxisViewItem::Visibility(TimeAxisViewItem::ShowFrame | TimeAxisViewItem::HideFrameRight));
 148                 } else {
 149                         region_view = new AudioRegionView (canvas_group, _trackview, region,
 150                                                    _samples_per_unit, region_color);
 151                 }
 152                 break;
 153         case Destructive:
 154                 region_view = new TapeAudioRegionView (canvas_group, _trackview, region,
 155                                                        _samples_per_unit, region_color);
 156                 break;
 157         default:
 158                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 159                 /*NOTREACHED*/
 160
 161         }
 162
 163         region_view->init (region_color, wait_for_waves);
 164         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 165         region_views.push_front (region_view);
 166
 167         /* if its the special single-sample length that we use for rec-regions, make it
 168            insensitive to events
 169         */
 170
 171         if (region->length() == 1) {
 172                 region_view->set_sensitive (false);
 173         }
 174
 175         /* if this was the first one, then lets query the waveform scale and shape.
 176            otherwise, we set it to the current value */
 177
 178         if (region_views.size() == 1) {
 179                 if (region_view->waveform_logscaled()) {
 180                         _waveform_scale = LogWaveform;
 181                 } else {
 182                         _waveform_scale = LinearWaveform;
 183                 }
 184
 185                 if (region_view->waveform_rectified()) {
 186                         _waveform_shape = Rectified;
 187                 } else {
 188                         _waveform_shape = Traditional;
 189                 }
 190         }
 191         else {
 192                 region_view->set_waveform_scale(_waveform_scale);
 193                 region_view->set_waveform_shape(_waveform_shape);
 194         }
 195
 196         /* follow global waveform setting */
 197
 198         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 199
 200         /* catch regionview going away */
 201         region->GoingAway.connect (bind (mem_fun (*this, &AudioStreamView::remove_region_view), boost::weak_ptr<Region> (r)));
 202
 203         RegionViewAdded (region_view);
 204
 205         return region_view;
 206 }
 207
 208 void
 209 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 210 {
 211         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_region_view), weak_r));
 212
 213         boost::shared_ptr<Region> r (weak_r.lock());
 214
 215         if (!r) {
 216                 return;
 217         }
 218
 219         if (!_trackview.session().deletion_in_progress()) {
 220
 221                 for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 222                         list<CrossfadeView*>::iterator tmp;
 223
 224                         tmp = i;
 225                         ++tmp;
 226
 227                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 228                         if (ar && (*i)->crossfade->involves (ar)) {
 229                                 delete *i;
 230                                 crossfade_views.erase (i);
 231                         }
 232
 233                         i = tmp;
 234                 }
 235         }
 236
 237         StreamView::remove_region_view(r);
 238 }
 239
 240 void
 241 AudioStreamView::undisplay_diskstream ()
 242 {
 243         StreamView::undisplay_diskstream();
 244
 245         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 246                 delete *i;
 247         }
 248
 249         crossfade_views.clear ();
 250 }
 251
 252 void
 253 AudioStreamView::playlist_modified_weak (boost::weak_ptr<Diskstream> ds)
 254 {
 255         boost::shared_ptr<Diskstream> sp (ds.lock());
 256         if (!sp) {
 257                 return;
 258         }
 259
 260         playlist_modified (sp);
 261 }
 262
 263 void
 264 AudioStreamView::playlist_modified (boost::shared_ptr<Diskstream> ds)
 265 {
 266         /* we do not allow shared_ptr<T> to be bound to slots */
 267         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_modified_weak), ds));
 268
 269         StreamView::playlist_modified (ds);
 270
 271         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 272
 273         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 274                 (*i)->get_canvas_group()->raise_to_top();
 275         }
 276 }
 277
 278 void
 279 AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 280 {
 281         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
 282
 283         StreamView::playlist_changed(ds);
 284
 285         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 286         if (apl)
 287                 playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
 288 }
 289
 290 void
 291 AudioStreamView::add_crossfade_weak (boost::weak_ptr<Crossfade> crossfade)
 292 {
 293         boost::shared_ptr<Crossfade> sp (crossfade.lock());
 294
 295         if (!sp) {
 296                 return;
 297         }
 298
 299         add_crossfade (sp);
 300 }
 301
 302 void
 303 AudioStreamView::add_crossfade (boost::shared_ptr<Crossfade> crossfade)
 304 {
 305         AudioRegionView* lview = 0;
 306         AudioRegionView* rview = 0;
 307
 308         /* we do not allow shared_ptr<T> to be bound to slots */
 309
 310         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade_weak), boost::weak_ptr<Crossfade> (crossfade)));
 311
 312         /* first see if we already have a CrossfadeView for this Crossfade */
 313
 314         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 315                 if ((*i)->crossfade == crossfade) {
 316
 317                         if (!crossfades_visible || layer_display == Stacked) {
 318                                 (*i)->hide();
 319                         } else {
 320                                 (*i)->show ();
 321                         }
 322                         (*i)->set_valid (true);
 323                         return;
 324                 }
 325         }
 326
 327         /* create a new one */
 328
 329         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 330                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 331
 332                 if (!lview && arv && (arv->region() == crossfade->out())) {
 333                         lview = arv;
 334                 }
 335                 if (!rview && arv && (arv->region() == crossfade->in())) {
 336                         rview = arv;
 337                 }
 338         }
 339
 340         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 341                                                _trackview,
 342                                                 crossfade,
 343                                                _samples_per_unit,
 344                                                region_color,
 345                                                *lview, *rview);
 346         cv->set_valid (true);
 347         crossfade->Invalidated.connect (mem_fun (*this, &AudioStreamView::remove_crossfade));
 348         crossfade_views.push_back (cv);
 349         if (!Config->get_xfades_visible() || !crossfades_visible || layer_display == Stacked) {
 350                 cv->hide ();
 351         }
 352 }
 353
 354 void
 355 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 356 {
 357         ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::remove_crossfade), r));
 358
 359         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 360
 361         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 362                 if ((*i)->crossfade == xfade) {
 363                         delete *i;
 364                         crossfade_views.erase (i);
 365                         break;
 366                 }
 367         }
 368 }
 369
 370 void
 371 AudioStreamView::redisplay_diskstream ()
 372 {
 373         list<RegionView *>::iterator i, tmp;
 374         list<CrossfadeView*>::iterator xi, tmpx;
 375
 376         for (i = region_views.begin(); i != region_views.end(); ++i) {
 377                 (*i)->set_valid (false);
 378         }
 379
 380         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 381                 (*xi)->set_valid (false);
 382                 if ((*xi)->visible() && layer_display != Stacked) {
 383                         (*xi)->show ();
 384                 }
 385         }
 386
 387         if (_trackview.is_audio_track()) {
 388                 _trackview.get_diskstream()->playlist()->foreach_region (static_cast<StreamView*>(this), &StreamView::add_region_view);
 389
 390                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(_trackview.get_diskstream()->playlist());
 391                 if (apl)
 392                         apl->foreach_crossfade (this, &AudioStreamView::add_crossfade);
 393         }
 394
 395         RegionViewList copy;
 396
 397         /* Place regions */
 398         for (i = region_views.begin(); i != region_views.end(); ) {
 399                 tmp = i;
 400                 tmp++;
 401
 402                 if (!(*i)->is_valid()) {
 403                         delete *i;
 404                         region_views.erase (i);
 405                         i = tmp;
 406                         continue;
 407                 } else {
 408                         (*i)->enable_display(true);
 409                 }
 410
 411                 /* Sort regionviews by layer so that when we call region_layered ()
 412                    the canvas layering works out (in non-stacked mode). */
 413
 414                 if (copy.size() == 0) {
 415                         copy.push_front((*i));
 416                         i = tmp;
 417                         continue;
 418                 }
 419
 420                 RegionViewList::iterator k = copy.begin();
 421                 RegionViewList::iterator l = copy.end();
 422                 l--;
 423
 424                 if ((*i)->region()->layer() <= (*k)->region()->layer()) {
 425                         copy.push_front((*i));
 426                         i = tmp;
 427                         continue;
 428                 } else if ((*i)->region()->layer() >= (*l)->region()->layer()) {
 429                         copy.push_back((*i));
 430                         i = tmp;
 431                         continue;
 432                 }
 433
 434                 for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
 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         /* Fix canvas layering */
 458         for (RegionViewList::iterator j = copy.begin(); j != copy.end(); ++j) {
 459                 (*j)->enable_display(true);
 460                 (*j)->set_height (height);
 461                 region_layered (*j);
 462         }
 463 }
 464
 465 void
 466 AudioStreamView::set_show_waveforms (bool yn)
 467 {
 468         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 469                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 470                 if (arv) {
 471                         arv->set_waveform_visible (yn);
 472                 }
 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 region_views.size() = " << region_views.size() << endl;
 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                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 511
 512                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 513
 514                                 SourceList sources;
 515
 516                                 for (list<sigc::connection>::iterator prc = rec_data_ready_connections.begin(); prc != rec_data_ready_connections.end(); ++prc) {
 517                                         (*prc).disconnect();
 518                                 }
 519                                 rec_data_ready_connections.clear();
 520
 521                                 // FIXME
 522                                 boost::shared_ptr<AudioDiskstream> ads = boost::dynamic_pointer_cast<AudioDiskstream>(_trackview.get_diskstream());
 523                                 assert(ads);
 524
 525                                 for (uint32_t n=0; n < ads->n_channels().n_audio(); ++n) {
 526                                         boost::shared_ptr<AudioFileSource> src = boost::static_pointer_cast<AudioFileSource> (ads->write_source (n));
 527                                         if (src) {
 528                                                 sources.push_back (src);
 529
 530                                                 rec_data_ready_connections.push_back (src->PeakRangeReady.connect (bind
 531                                                         (mem_fun (*this, &AudioStreamView::rec_peak_range_ready), boost::weak_ptr<Source>(src))));
 532                                         }
 533                                 }
 534
 535                                 // handle multi
 536
 537                                 nframes_t start = 0;
 538                                 if (rec_regions.size() > 0) {
 539                                         start = rec_regions.back().first->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 540                                 }
 541
 542                                 boost::shared_ptr<AudioRegion> region (boost::dynamic_pointer_cast<AudioRegion>
 543                                                                        (RegionFactory::create (sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false)));
 544                                 assert(region);
 545                                 region->set_position (_trackview.session().transport_frame(), this);
 546
 547                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 548                         }
 549
 550                         /* start a new rec box */
 551
 552                         boost::shared_ptr<AudioTrack> at;
 553
 554                         at = _trackview.audio_track(); /* we know what it is already */
 555                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 556                         nframes_t frame_pos = ds->current_capture_start ();
 557                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 558                         gdouble xend;
 559                         uint32_t fill_color;
 560
 561                         switch (_trackview.audio_track()->mode()) {
 562                         case Normal:
 563                                 xend = xstart;
 564                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 565                                 break;
 566
 567                         case Destructive:
 568                                 xend = xstart + 2;
 569                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 570                                 /* make the recording rect translucent to allow
 571                                    the user to see the peak data coming in, etc.
 572                                 */
 573                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 574                                 break;
 575                         }
 576
 577                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 578                         rec_rect->property_x1() = xstart;
 579                         rec_rect->property_y1() = 1.0;
 580                         rec_rect->property_x2() = xend;
 581                         rec_rect->property_y2() = (double) _trackview.current_height() - 1;
 582                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 583                         rec_rect->property_outline_what() = 0x1 | 0x2 | 0x4 | 0x8;
 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                         screen_update_connection.disconnect();
 603                         rec_active = false;
 604                         rec_updating = false;
 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                 uint32_t n = 0;
 691
 692                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 693
 694                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 695
 696                         tmp = iter;
 697                         ++tmp;
 698
 699                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 700                                 /* rect already hidden, this region is done */
 701                                 iter = tmp;
 702                                 continue;
 703                         }
 704
 705                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 706                         if (!region) {
 707                                 continue;
 708                         }
 709
 710                         nframes_t origlen = region->length();
 711
 712                         if (region == rec_regions.back().first && rec_active) {
 713
 714                                 if (last_rec_data_frame > region->start()) {
 715
 716                                         nframes_t nlen = last_rec_data_frame - region->start();
 717
 718                                         if (nlen != region->length()) {
 719
 720                                                 region->freeze ();
 721                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 722                                                 region->set_length (nlen, this);
 723                                                 region->thaw ("updated");
 724
 725                                                 if (origlen == 1) {
 726                                                         /* our special initial length */
 727                                                         add_region_view_internal (region, false, true);
 728                                                 }
 729
 730                                                 /* also update rect */
 731                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 732                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 733                                                 rect->property_x2() = xend;
 734                                         }
 735                                 }
 736
 737                         } else {
 738
 739                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 740
 741                                 if (nlen != region->length()) {
 742
 743                                         if (region->source(0)->length() >= region->start() + nlen) {
 744
 745                                                 region->freeze ();
 746                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 747                                                 region->set_length (nlen, this);
 748                                                 region->thaw ("updated");
 749
 750                                                 if (origlen == 1) {
 751                                                         /* our special initial length */
 752                                                         add_region_view_internal (region, false, true);
 753                                                 }
 754
 755                                                 /* also hide rect */
 756                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 757                                                 rect->hide();
 758
 759                                         }
 760                                 }
 761                         }
 762
 763                         iter = tmp;
 764                 }
 765         }
 766 }
 767
 768 void
 769 AudioStreamView::show_all_xfades ()
 770 {
 771         foreach_crossfadeview (&CrossfadeView::show);
 772         crossfades_visible = true;
 773 }
 774
 775 void
 776 AudioStreamView::hide_all_xfades ()
 777 {
 778         foreach_crossfadeview (&CrossfadeView::hide);
 779         crossfades_visible = false;
 780 }
 781
 782 void
 783 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 784 {
 785         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 786                 if ((*i)->crossfade->involves (rv.audio_region())) {
 787                         (*i)->fake_hide ();
 788                 }
 789         }
 790 }
 791
 792 void
 793 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 794 {
 795         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 796                 if ((*i)->crossfade->involves (rv.audio_region()) && (*i)->visible() && layer_display != Stacked) {
 797                         (*i)->show ();
 798                 }
 799         }
 800 }
 801
 802 void
 803 AudioStreamView::color_handler ()
 804 {
 805         //case cAudioTrackBase:
 806         if (_trackview.is_track()) {
 807                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 808         }
 809
 810         //case cAudioBusBase:
 811         if (!_trackview.is_track()) {
 812                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 813         }
 814
 815 }
 816
 817 void
 818 AudioStreamView::update_contents_y_position_and_height ()
 819 {
 820         StreamView::update_contents_y_position_and_height ();
 821
 822         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 823                 if (layer_display == Overlaid) {
 824                         (*i)->show ();
 825                         (*i)->set_y_position_and_height (0, height);
 826                 } else {
 827                         (*i)->hide ();
 828                 }
 829         }
 830 }