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/source.h"
  33 #include "ardour/region_factory.h"
  34 #include "ardour/profile.h"
  35 #include "ardour/rc_configuration.h"
  36 #include "ardour/session.h"
  37
  38 #include "audio_streamview.h"
  39 #include "audio_region_view.h"
  40 #include "tape_region_view.h"
  41 #include "audio_time_axis.h"
  42 #include "canvas-waveview.h"
  43 #include "canvas-simplerect.h"
  44 #include "region_selection.h"
  45 #include "selection.h"
  46 #include "public_editor.h"
  47 #include "ardour_ui.h"
  48 #include "crossfade_view.h"
  49 #include "rgb_macros.h"
  50 #include "gui_thread.h"
  51 #include "utils.h"
  52
  53 #include "i18n.h"
  54
  55 using namespace std;
  56 using namespace ARDOUR;
  57 using namespace PBD;
  58 using namespace Editing;
  59
  60 AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
  61         : StreamView (tv)
  62 {
  63         crossfades_visible = true;
  64         color_handler ();
  65         _amplitude_above_axis = 1.0;
  66
  67         use_rec_regions = tv.editor().show_waveforms_recording ();
  68
  69         Config->ParameterChanged.connect (*this, sigc::mem_fun (*this, &AudioStreamView::parameter_changed));
  70 }
  71
  72 AudioStreamView::~AudioStreamView ()
  73 {
  74 }
  75
  76 int
  77 AudioStreamView::set_samples_per_unit (gdouble spp)
  78 {
  79         StreamView::set_samples_per_unit(spp);
  80
  81         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
  82                 xi->second->set_samples_per_unit (spp);
  83         }
  84
  85         return 0;
  86 }
  87
  88 int
  89 AudioStreamView::set_amplitude_above_axis (gdouble app)
  90 {
  91         RegionViewList::iterator i;
  92
  93         if (app < 1.0) {
  94                 return -1;
  95         }
  96
  97         _amplitude_above_axis = app;
  98
  99         for (i = region_views.begin(); i != region_views.end(); ++i) {
 100                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 101                 if (arv)
 102                         arv->set_amplitude_above_axis (app);
 103         }
 104
 105         return 0;
 106 }
 107
 108 RegionView*
 109 AudioStreamView::create_region_view (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
 110 {
 111         AudioRegionView *region_view = 0;
 112         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 113
 114         if (region == 0) {
 115                 return 0;
 116         }
 117
 118         switch (_trackview.audio_track()->mode()) {
 119
 120         case NonLayered:
 121         case Normal:
 122                 if (recording) {
 123                         region_view = new AudioRegionView (canvas_group, _trackview, region,
 124                                         _samples_per_unit, region_color, recording, TimeAxisViewItem::Visibility(
 125                                                         TimeAxisViewItem::ShowFrame | TimeAxisViewItem::HideFrameRight));
 126                 } else {
 127                         region_view = new AudioRegionView (canvas_group, _trackview, region,
 128                                         _samples_per_unit, region_color);
 129                 }
 130                 break;
 131         case Destructive:
 132                 region_view = new TapeAudioRegionView (canvas_group, _trackview, region,
 133                                 _samples_per_unit, region_color);
 134                 break;
 135         default:
 136                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 137                 /*NOTREACHED*/
 138
 139         }
 140
 141         region_view->init (region_color, wait_for_waves);
 142         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 143         region_view->set_height (child_height ());
 144
 145         /* if its the special single-sample length that we use for rec-regions, make it
 146            insensitive to events
 147         */
 148
 149         if (region->length() == 1) {
 150                 region_view->set_sensitive (false);
 151         }
 152
 153         region_view->set_waveform_scale (Config->get_waveform_scale ());
 154         region_view->set_waveform_shape (Config->get_waveform_shape ());
 155         region_view->set_waveform_visible (Config->get_show_waveforms ());
 156
 157         return region_view;
 158 }
 159
 160 RegionView*
 161 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
 162 {
 163         RegionView *region_view = create_region_view (r, wait_for_waves, recording);
 164         if (region_view == 0) {
 165                 return 0;
 166         }
 167
 168 //      if(!recording){
 169 //              for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 170 //                      if ((*i)->region() == r) {
 171 //                              cerr << "audio_streamview in add_region_view_internal region found" << endl;
 172                                 /* great. we already have a AudioRegionView for this Region. use it again. */
 173
 174 //                              (*i)->set_valid (true);
 175
 176                                 // this might not be necessary
 177 //                              AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 178
 179 //                              if (arv) {
 180 //                                      arv->set_waveform_scale (_waveform_scale);
 181 //                                      arv->set_waveform_shape (_waveform_shape);
 182 //                              }
 183
 184 //                              return NULL;
 185 //                      }
 186 //              }
 187 //      }
 188
 189         region_views.push_front (region_view);
 190
 191         /* catch region going away */
 192
 193         r->GoingAway.connect (*this, boost::bind (&AudioStreamView::remove_region_view, this, 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 (*this, &AudioStreamView::remove_region_view, weak_r);
 204
 205         cerr << "a region went way, it appears to be ours (" << this << ")\n";
 206
 207         boost::shared_ptr<Region> r (weak_r.lock());
 208
 209         if (!r) {
 210                 return;
 211         }
 212
 213         if (!_trackview.session()->deletion_in_progress()) {
 214
 215                 for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 216                         CrossfadeViewList::iterator tmp;
 217
 218                         tmp = i;
 219                         ++tmp;
 220
 221                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 222                         if (ar && i->second->crossfade->involves (ar)) {
 223                                 delete i->second;
 224                                 crossfade_views.erase (i);
 225                         }
 226
 227                         i = tmp;
 228                 }
 229         }
 230
 231         StreamView::remove_region_view(r);
 232 }
 233
 234 void
 235 AudioStreamView::undisplay_diskstream ()
 236 {
 237         StreamView::undisplay_diskstream();
 238
 239         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 240                 delete i->second;
 241         }
 242
 243         crossfade_views.clear ();
 244 }
 245
 246 void
 247 AudioStreamView::playlist_modified_weak (boost::weak_ptr<Diskstream> ds)
 248 {
 249         boost::shared_ptr<Diskstream> sp (ds.lock());
 250         if (sp) {
 251                 playlist_modified (sp);
 252         }
 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 (*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 (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 266                 i->second->get_canvas_group()->raise_to_top();
 267         }
 268 }
 269
 270 void
 271 AudioStreamView::playlist_changed_weak (boost::weak_ptr<Diskstream> ds)
 272 {
 273         boost::shared_ptr<Diskstream> sp (ds.lock());
 274         if (sp) {
 275                 playlist_changed (sp);
 276         }
 277 }
 278
 279 void
 280 AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
 281 {
 282         ENSURE_GUI_THREAD (*this, &AudioStreamView::playlist_changed_weak, boost::weak_ptr<Diskstream> (ds));
 283
 284         playlist_connections.drop_connections ();
 285
 286         StreamView::playlist_changed(ds);
 287
 288         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 289
 290         if (apl) {
 291                 apl->NewCrossfade.connect (playlist_connections, boost::bind (&AudioStreamView::add_crossfade, this, _1));
 292         }
 293 }
 294
 295 void
 296 AudioStreamView::add_crossfade_weak (boost::weak_ptr<Crossfade> crossfade)
 297 {
 298         boost::shared_ptr<Crossfade> sp (crossfade.lock());
 299
 300         if (!sp) {
 301                 return;
 302         }
 303
 304         add_crossfade (sp);
 305 }
 306
 307 void
 308 AudioStreamView::add_crossfade (boost::shared_ptr<Crossfade> crossfade)
 309 {
 310         AudioRegionView* lview = 0;
 311         AudioRegionView* rview = 0;
 312
 313         /* we do not allow shared_ptr<T> to be bound to slots */
 314
 315         ENSURE_GUI_THREAD (*this, &AudioStreamView::add_crossfade_weak, boost::weak_ptr<Crossfade> (crossfade));
 316
 317         /* first see if we already have a CrossfadeView for this Crossfade */
 318
 319         CrossfadeViewList::iterator i = crossfade_views.find (crossfade);
 320         if (i != crossfade_views.end()) {
 321                 if (!crossfades_visible) {
 322                         i->second->hide();
 323                 } else {
 324                         i->second->show ();
 325                 }
 326                 i->second->set_valid (true);
 327                 return;
 328         }
 329
 330         /* create a new one */
 331
 332         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 333                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 334
 335                 if (!lview && arv && (arv->region() == crossfade->out())) {
 336                         lview = arv;
 337                 }
 338                 if (!rview && arv && (arv->region() == crossfade->in())) {
 339                         rview = arv;
 340                 }
 341         }
 342
 343         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display (),
 344                                                _trackview,
 345                                                 crossfade,
 346                                                _samples_per_unit,
 347                                                region_color,
 348                                                *lview, *rview);
 349         cv->set_valid (true);
 350         crossfade->Invalidated.connect (*this, sigc::mem_fun (*this, &AudioStreamView::remove_crossfade));
 351         crossfade_views[cv->crossfade] = cv;
 352         if (!_trackview.session()->config.get_xfades_visible() || !crossfades_visible) {
 353                 cv->hide ();
 354         }
 355
 356         update_content_height (cv);
 357 }
 358
 359 void
 360 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 361 {
 362         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_crossfade, r)
 363
 364         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 365
 366         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 367                 if (i->second->crossfade == xfade) {
 368                         delete i->second;
 369                         crossfade_views.erase (i);
 370                         break;
 371                 }
 372         }
 373 }
 374
 375 void
 376 AudioStreamView::redisplay_diskstream ()
 377 {
 378         list<RegionView *>::iterator i;
 379         CrossfadeViewList::iterator xi, tmpx;
 380
 381         // Flag region views as invalid and disable drawing
 382         for (i = region_views.begin(); i != region_views.end(); ++i) {
 383                 (*i)->set_valid (false);
 384                 (*i)->enable_display (false);
 385         }
 386
 387         // Flag crossfade views as invalid
 388         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 389                 xi->second->set_valid (false);
 390                 if (xi->second->visible()) {
 391                         xi->second->show ();
 392                 }
 393         }
 394
 395         // Add and display region and crossfade views, and flag them as valid
 396
 397         if (_trackview.is_audio_track()) {
 398                 _trackview.get_diskstream()->playlist()->foreach_region(
 399                         sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
 400                         );
 401
 402                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(
 403                                 _trackview.get_diskstream()->playlist()
 404                         );
 405
 406                 if (apl) {
 407                         apl->foreach_crossfade (sigc::mem_fun (*this, &AudioStreamView::add_crossfade));
 408                 }
 409         }
 410
 411         // Remove invalid crossfade views
 412         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 413                 tmpx = xi;
 414                 tmpx++;
 415
 416                 if (!xi->second->valid()) {
 417                         delete xi->second;
 418                         crossfade_views.erase (xi);
 419                 }
 420
 421                 xi = tmpx;
 422         }
 423
 424         // Stack regions by layer, and remove invalid regions
 425         layer_regions();
 426 }
 427
 428 void
 429 AudioStreamView::set_show_waveforms (bool yn)
 430 {
 431         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 432                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 433                 if (arv) {
 434                         arv->set_waveform_visible (yn);
 435                 }
 436         }
 437 }
 438
 439 void
 440 AudioStreamView::set_waveform_shape (WaveformShape shape)
 441 {
 442         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 443                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 444                 if (arv)
 445                         arv->set_waveform_shape (shape);
 446         }
 447 }
 448
 449 void
 450 AudioStreamView::set_waveform_scale (WaveformScale scale)
 451 {
 452         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 453                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 454                 if (arv) {
 455                         arv->set_waveform_scale (scale);
 456                 }
 457         }
 458 }
 459
 460 void
 461 AudioStreamView::setup_rec_box ()
 462 {
 463         //cerr << _trackview.name() << " streamview SRB region_views.size() = " << region_views.size() << endl;
 464
 465         if (_trackview.session()->transport_rolling()) {
 466
 467                 // cerr << "\trolling\n";
 468
 469                 if (!rec_active &&
 470                     _trackview.session()->record_status() == Session::Recording &&
 471                     _trackview.get_diskstream()->record_enabled()) {
 472                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 473
 474                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 475
 476                                 SourceList sources;
 477
 478                                 rec_data_ready_connections.drop_connections ();
 479                                 boost::shared_ptr<AudioDiskstream> ads = _trackview.audio_track()->audio_diskstream();
 480
 481                                 for (uint32_t n=0; n < ads->n_channels().n_audio(); ++n) {
 482                                         boost::shared_ptr<AudioFileSource> src = ads->write_source (n);
 483                                         if (src) {
 484                                                 sources.push_back (src);
 485
 486                                                 (src->PeakRangeReady.connect (rec_data_ready_connections,
 487                                                                               boost::bind (&AudioStreamView::rec_peak_range_ready,
 488                                                                                            this, _1, _2, boost::weak_ptr<Source>(src))));
 489                                         }
 490                                 }
 491
 492                                 // handle multi
 493
 494                                 nframes_t start = 0;
 495                                 if (rec_regions.size() > 0) {
 496                                         start = rec_regions.back().first->start()
 497                                                         + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 498                                 }
 499
 500                                 boost::shared_ptr<AudioRegion> region (boost::dynamic_pointer_cast<AudioRegion>(
 501                                                 RegionFactory::create (sources, start, 1, "", 0, Region::DefaultFlags, false)));
 502                                 assert(region);
 503                                 region->block_property_changes ();
 504                                 region->set_position (_trackview.session()->transport_frame(), this);
 505                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 506                         }
 507
 508                         /* start a new rec box */
 509
 510                         boost::shared_ptr<AudioTrack> at;
 511
 512                         at = _trackview.audio_track(); /* we know what it is already */
 513                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 514                         nframes_t frame_pos = ds->current_capture_start ();
 515                         gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
 516                         gdouble xend;
 517                         uint32_t fill_color;
 518
 519                         switch (_trackview.audio_track()->mode()) {
 520                         case Normal:
 521                         case NonLayered:
 522                                 xend = xstart;
 523                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 524                                 break;
 525
 526                         case Destructive:
 527                                 xend = xstart + 2;
 528                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 529                                 /* make the recording rect translucent to allow
 530                                    the user to see the peak data coming in, etc.
 531                                 */
 532                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 533                                 break;
 534                         }
 535
 536                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 537                         rec_rect->property_x1() = xstart;
 538                         rec_rect->property_y1() = 1.0;
 539                         rec_rect->property_x2() = xend;
 540                         rec_rect->property_y2() = child_height ();
 541                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 542                         rec_rect->property_outline_what() = 0x1 | 0x2 | 0x4 | 0x8;
 543                         rec_rect->property_fill_color_rgba() = fill_color;
 544                         rec_rect->lower_to_bottom();
 545
 546                         RecBoxInfo recbox;
 547                         recbox.rectangle = rec_rect;
 548                         recbox.start = _trackview.session()->transport_frame();
 549                         recbox.length = 0;
 550
 551                         rec_rects.push_back (recbox);
 552
 553                         screen_update_connection.disconnect();
 554                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
 555                                         sigc::mem_fun (*this, &AudioStreamView::update_rec_box));
 556                         rec_updating = true;
 557                         rec_active = true;
 558
 559                 } else if (rec_active &&
 560                            (_trackview.session()->record_status() != Session::Recording ||
 561                             !_trackview.get_diskstream()->record_enabled())) {
 562                         screen_update_connection.disconnect();
 563                         rec_active = false;
 564                         rec_updating = false;
 565                 }
 566
 567         } else {
 568
 569                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 570
 571                 if (!rec_rects.empty() || !rec_regions.empty()) {
 572
 573                         /* disconnect rapid update */
 574                         screen_update_connection.disconnect();
 575                         rec_data_ready_connections.drop_connections ();
 576                         rec_updating = false;
 577                         rec_active = false;
 578
 579                         /* remove temp regions */
 580
 581                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 582                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 583
 584                                 tmp = iter;
 585                                 ++tmp;
 586
 587                                 (*iter).first->drop_references ();
 588
 589                                 iter = tmp;
 590                         }
 591
 592                         rec_regions.clear();
 593
 594                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 595
 596                         /* transport stopped, clear boxes */
 597                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 598                                 RecBoxInfo &rect = (*iter);
 599                                 delete rect.rectangle;
 600                         }
 601
 602                         rec_rects.clear();
 603
 604                 }
 605         }
 606 }
 607
 608 void
 609 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 610 {
 611         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 612                 (i->second->*pmf) ();
 613         }
 614 }
 615
 616 void
 617 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 618 {
 619         ENSURE_GUI_THREAD (*this, &AudioStreamView::rec_peak_range_ready, start, cnt, weak_src)
 620
 621         boost::shared_ptr<Source> src (weak_src.lock());
 622
 623         if (!src) {
 624                 return;
 625         }
 626
 627         // this is called from the peak building thread
 628
 629         if (rec_data_ready_map.size() == 0 || start + cnt > last_rec_data_frame) {
 630                 last_rec_data_frame = start + cnt;
 631         }
 632
 633         rec_data_ready_map[src] = true;
 634
 635         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().n_audio()) {
 636                 this->update_rec_regions ();
 637                 rec_data_ready_map.clear();
 638         }
 639 }
 640
 641 void
 642 AudioStreamView::update_rec_regions ()
 643 {
 644         if (use_rec_regions) {
 645                 uint32_t n = 0;
 646
 647                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin();
 648                                 iter != rec_regions.end(); n++) {
 649
 650                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp = iter;
 651                         ++tmp;
 652
 653                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 654                                 /* rect already hidden, this region is done */
 655                                 iter = tmp;
 656                                 continue;
 657                         }
 658
 659                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 660                         if (!region) {
 661                                 iter = tmp;
 662                                 continue;
 663                         }
 664
 665                         nframes_t origlen = region->length();
 666
 667                         if (region == rec_regions.back().first && rec_active) {
 668
 669                                 if (last_rec_data_frame > region->start()) {
 670
 671                                         nframes_t nlen = last_rec_data_frame - region->start();
 672
 673                                         if (nlen != region->length()) {
 674
 675                                                 region->freeze ();
 676                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 677                                                 region->set_length (nlen, this);
 678                                                 region->thaw ("updated");
 679
 680                                                 if (origlen == 1) {
 681                                                         /* our special initial length */
 682                                                         add_region_view_internal (region, false, true);
 683                                                 }
 684
 685                                                 /* also update rect */
 686                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 687                                                 gdouble xend = _trackview.editor().frame_to_pixel (region->position() + region->length());
 688                                                 rect->property_x2() = xend;
 689                                         }
 690                                 }
 691
 692                         } else {
 693
 694                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 695
 696                                 if (nlen != region->length()) {
 697
 698                                         if (region->source_length(0) >= region->start() + nlen) {
 699
 700                                                 region->freeze ();
 701                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 702                                                 region->set_length (nlen, this);
 703                                                 region->thaw ("updated");
 704
 705                                                 if (origlen == 1) {
 706                                                         /* our special initial length */
 707                                                         add_region_view_internal (region, false, true);
 708                                                 }
 709
 710                                                 /* also hide rect */
 711                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 712                                                 rect->hide();
 713
 714                                         }
 715                                 }
 716                         }
 717
 718                         iter = tmp;
 719                 }
 720         }
 721 }
 722
 723 void
 724 AudioStreamView::show_all_fades ()
 725 {
 726         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 727                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 728                 if (arv) {
 729                         arv->set_fade_visibility (true);
 730                 }
 731         }
 732 }
 733
 734 void
 735 AudioStreamView::hide_all_fades ()
 736 {
 737         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 738                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 739                 if (arv) {
 740                         arv->set_fade_visibility (false);
 741                 }
 742         }
 743 }
 744
 745 void
 746 AudioStreamView::show_all_xfades ()
 747 {
 748         foreach_crossfadeview (&CrossfadeView::show);
 749         crossfades_visible = true;
 750 }
 751
 752 void
 753 AudioStreamView::hide_all_xfades ()
 754 {
 755         foreach_crossfadeview (&CrossfadeView::hide);
 756         crossfades_visible = false;
 757 }
 758
 759 void
 760 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 761 {
 762         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 763                 if (i->second->crossfade->involves (rv.audio_region())) {
 764                         i->second->fake_hide ();
 765                 }
 766         }
 767 }
 768
 769 void
 770 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 771 {
 772         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 773                 if (i->second->crossfade->involves (rv.audio_region()) && i->second->visible()) {
 774                         i->second->show ();
 775                 }
 776         }
 777 }
 778
 779 void
 780 AudioStreamView::color_handler ()
 781 {
 782         //case cAudioTrackBase:
 783         if (_trackview.is_track()) {
 784                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 785         }
 786
 787         //case cAudioBusBase:
 788         if (!_trackview.is_track()) {
 789                 if (Profile->get_sae() && _trackview.route()->is_master()) {
 790                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioMasterBusBase.get();
 791                 } else {
 792                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 793                 }
 794         }
 795 }
 796
 797 void
 798 AudioStreamView::update_contents_height ()
 799 {
 800         StreamView::update_contents_height ();
 801
 802         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 803                 update_content_height (i->second);
 804         }
 805 }
 806
 807 void
 808 AudioStreamView::update_content_height (CrossfadeView* cv)
 809 {
 810         cv->show ();
 811
 812         if (_layer_display == Overlaid) {
 813
 814                 cv->set_y (0);
 815                 cv->set_height (height);
 816
 817         } else {
 818
 819                 layer_t const inl = cv->crossfade->in()->layer ();
 820                 layer_t const outl = cv->crossfade->out()->layer ();
 821
 822                 layer_t const high = max (inl, outl);
 823                 layer_t const low = min (inl, outl);
 824
 825                 const double h = child_height ();
 826
 827                 cv->set_y ((_layers - high - 1) * h);
 828                 cv->set_height ((high - low + 1) * h);
 829
 830         }
 831 }
 832
 833 void
 834 AudioStreamView::parameter_changed (string const & p)
 835 {
 836         if (p == "show-waveforms") {
 837                 set_show_waveforms (Config->get_show_waveforms ());
 838         } else if (p == "waveform-scale") {
 839                 set_waveform_scale (Config->get_waveform_scale ());
 840         } else if (p == "waveform-shape") {
 841                 set_waveform_shape (Config->get_waveform_shape ());
 842         }
 843 }