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 "pbd/stacktrace.h"
  28
  29 #include "ardour/audioplaylist.h"
  30 #include "ardour/audioregion.h"
  31 #include "ardour/audiofilesource.h"
  32 #include "ardour/audio_track.h"
  33 #include "ardour/source.h"
  34 #include "ardour/region_factory.h"
  35 #include "ardour/profile.h"
  36 #include "ardour/rc_configuration.h"
  37 #include "ardour/session.h"
  38
  39 #include "audio_streamview.h"
  40 #include "audio_region_view.h"
  41 #include "tape_region_view.h"
  42 #include "audio_time_axis.h"
  43 #include "canvas-waveview.h"
  44 #include "canvas-simplerect.h"
  45 #include "region_selection.h"
  46 #include "selection.h"
  47 #include "public_editor.h"
  48 #include "ardour_ui.h"
  49 #include "crossfade_view.h"
  50 #include "rgb_macros.h"
  51 #include "gui_thread.h"
  52 #include "utils.h"
  53
  54 #include "i18n.h"
  55
  56 using namespace std;
  57 using namespace ARDOUR;
  58 using namespace PBD;
  59 using namespace Editing;
  60
  61 AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
  62         : StreamView (tv)
  63 {
  64         crossfades_visible = tv.session()->config.get_xfades_visible ();
  65         color_handler ();
  66         _amplitude_above_axis = 1.0;
  67
  68         Config->ParameterChanged.connect (*this, invalidator (*this), ui_bind (&AudioStreamView::parameter_changed, this, _1), gui_context());
  69 }
  70
  71 AudioStreamView::~AudioStreamView ()
  72 {
  73 }
  74
  75 int
  76 AudioStreamView::set_samples_per_unit (gdouble spp)
  77 {
  78         StreamView::set_samples_per_unit(spp);
  79
  80         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
  81                 xi->second->set_samples_per_unit (spp);
  82         }
  83
  84         return 0;
  85 }
  86
  87 int
  88 AudioStreamView::set_amplitude_above_axis (gdouble app)
  89 {
  90         RegionViewList::iterator i;
  91
  92         if (app < 1.0) {
  93                 return -1;
  94         }
  95
  96         _amplitude_above_axis = app;
  97
  98         for (i = region_views.begin(); i != region_views.end(); ++i) {
  99                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 100                 if (arv)
 101                         arv->set_amplitude_above_axis (app);
 102         }
 103
 104         return 0;
 105 }
 106
 107 RegionView*
 108 AudioStreamView::create_region_view (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
 109 {
 110         AudioRegionView *region_view = 0;
 111         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 112
 113         if (region == 0) {
 114                 return 0;
 115         }
 116
 117         switch (_trackview.audio_track()->mode()) {
 118
 119         case NonLayered:
 120         case Normal:
 121                 if (recording) {
 122                         region_view = new AudioRegionView (_canvas_group, _trackview, region,
 123                                         _samples_per_unit, region_color, recording, TimeAxisViewItem::Visibility(
 124                                                         TimeAxisViewItem::ShowFrame |
 125                                                         TimeAxisViewItem::HideFrameRight |
 126                                                         TimeAxisViewItem::HideFrameLeft |
 127                                                         TimeAxisViewItem::HideFrameTB));
 128                 } else {
 129                         region_view = new AudioRegionView (_canvas_group, _trackview, region,
 130                                         _samples_per_unit, region_color);
 131                 }
 132                 break;
 133         case Destructive:
 134                 region_view = new TapeAudioRegionView (_canvas_group, _trackview, region,
 135                                 _samples_per_unit, region_color);
 136                 break;
 137         default:
 138                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 139                 /*NOTREACHED*/
 140
 141         }
 142
 143         region_view->init (region_color, wait_for_waves);
 144         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 145         region_view->set_height (child_height ());
 146
 147         /* if its the special single-sample length that we use for rec-regions, make it
 148            insensitive to events
 149         */
 150
 151         if (region->length() == 1) {
 152                 region_view->set_sensitive (false);
 153         }
 154
 155         region_view->set_waveform_scale (Config->get_waveform_scale ());
 156         region_view->set_waveform_shape (Config->get_waveform_shape ());
 157         region_view->set_waveform_visible (Config->get_show_waveforms ());
 158
 159         return region_view;
 160 }
 161
 162 RegionView*
 163 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
 164 {
 165         RegionView *region_view = create_region_view (r, wait_for_waves, recording);
 166
 167         if (region_view == 0) {
 168                 return 0;
 169         }
 170
 171 //      if(!recording){
 172 //              for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 173 //                      if ((*i)->region() == r) {
 174 //                              cerr << "audio_streamview in add_region_view_internal region found" << endl;
 175                                 /* great. we already have a AudioRegionView for this Region. use it again. */
 176
 177 //                              (*i)->set_valid (true);
 178
 179                                 // this might not be necessary
 180 //                              AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 181
 182 //                              if (arv) {
 183 //                                      arv->set_waveform_scale (_waveform_scale);
 184 //                                      arv->set_waveform_shape (_waveform_shape);
 185 //                              }
 186
 187 //                              return NULL;
 188 //                      }
 189 //              }
 190 //      }
 191
 192         region_views.push_front (region_view);
 193
 194         /* catch region going away */
 195
 196         r->DropReferences.connect (*this, invalidator (*this), boost::bind (&AudioStreamView::remove_region_view, this, boost::weak_ptr<Region> (r)), gui_context());
 197
 198         RegionViewAdded (region_view);
 199
 200         return region_view;
 201 }
 202
 203 void
 204 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 205 {
 206         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_region_view, weak_r);
 207
 208         boost::shared_ptr<Region> r (weak_r.lock());
 209
 210         if (!r) {
 211                 return;
 212         }
 213
 214         if (!_trackview.session()->deletion_in_progress()) {
 215
 216                 for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 217                         CrossfadeViewList::iterator tmp;
 218
 219                         tmp = i;
 220                         ++tmp;
 221
 222                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 223                         if (ar && i->second->crossfade->involves (ar)) {
 224                                 delete i->second;
 225                                 crossfade_views.erase (i);
 226                         }
 227
 228                         i = tmp;
 229                 }
 230         }
 231
 232         StreamView::remove_region_view(r);
 233 }
 234
 235 void
 236 AudioStreamView::undisplay_track ()
 237 {
 238         StreamView::undisplay_track ();
 239
 240         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 241                 delete i->second;
 242         }
 243
 244         crossfade_views.clear ();
 245 }
 246
 247 void
 248 AudioStreamView::playlist_layered (boost::weak_ptr<Track> wtr)
 249 {
 250         boost::shared_ptr<Track> tr (wtr.lock());
 251
 252         if (!tr) {
 253                 return;
 254         }
 255
 256         StreamView::playlist_layered (wtr);
 257
 258         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 259
 260         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 261                 i->second->get_canvas_group()->raise_to_top();
 262         }
 263 }
 264
 265 void
 266 AudioStreamView::playlist_switched (boost::weak_ptr<Track> wtr)
 267 {
 268         boost::shared_ptr<Track> tr (wtr.lock());
 269
 270         if (!tr) {
 271                 return;
 272         }
 273
 274         playlist_connections.drop_connections ();
 275
 276         StreamView::playlist_switched (tr);
 277
 278         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist> (tr->playlist());
 279
 280         if (apl) {
 281                 apl->NewCrossfade.connect (playlist_connections, invalidator (*this), ui_bind (&AudioStreamView::add_crossfade, this, _1), gui_context());
 282         }
 283 }
 284
 285 void
 286 AudioStreamView::add_crossfade (boost::weak_ptr<Crossfade> wc)
 287 {
 288         boost::shared_ptr<Crossfade> crossfade (wc.lock());
 289
 290         if (!crossfade) {
 291                 return;
 292         }
 293
 294         AudioRegionView* lview = 0;
 295         AudioRegionView* rview = 0;
 296
 297         /* first see if we already have a CrossfadeView for this Crossfade */
 298
 299         CrossfadeViewList::iterator i = crossfade_views.find (crossfade);
 300         if (i != crossfade_views.end()) {
 301                 if (!crossfades_visible) {
 302                         i->second->hide();
 303                 } else {
 304                         i->second->show ();
 305                 }
 306                 i->second->set_valid (true);
 307                 return;
 308         }
 309
 310         /* create a new one */
 311
 312         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 313                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 314
 315                 if (!lview && arv && (arv->region() == crossfade->out())) {
 316                         lview = arv;
 317                 }
 318                 if (!rview && arv && (arv->region() == crossfade->in())) {
 319                         rview = arv;
 320                 }
 321         }
 322
 323         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display (),
 324                                                _trackview,
 325                                                 crossfade,
 326                                                _samples_per_unit,
 327                                                region_color,
 328                                                *lview, *rview);
 329         cv->set_valid (true);
 330         crossfade->Invalidated.connect (*this, invalidator (*this), ui_bind (&AudioStreamView::remove_crossfade, this, _1), gui_context());
 331         crossfade_views[cv->crossfade] = cv;
 332         if (!crossfades_visible) {
 333                 cv->hide ();
 334         }
 335
 336         update_content_height (cv);
 337 }
 338
 339 void
 340 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 341 {
 342         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_crossfade, r)
 343
 344         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 345
 346         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 347                 if (i->second->crossfade == xfade) {
 348                         delete i->second;
 349                         crossfade_views.erase (i);
 350                         break;
 351                 }
 352         }
 353 }
 354
 355 void
 356 AudioStreamView::redisplay_track ()
 357 {
 358         list<RegionView *>::iterator i;
 359         CrossfadeViewList::iterator xi, tmpx;
 360
 361         // Flag region views as invalid and disable drawing
 362         for (i = region_views.begin(); i != region_views.end(); ++i) {
 363                 (*i)->set_valid (false);
 364                 (*i)->enable_display (false);
 365         }
 366
 367         // Flag crossfade views as invalid
 368         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 369                 xi->second->set_valid (false);
 370                 if (xi->second->visible()) {
 371                         xi->second->show ();
 372                 }
 373         }
 374
 375         // Add and display region and crossfade views, and flag them as valid
 376
 377         if (_trackview.is_audio_track()) {
 378                 _trackview.track()->playlist()->foreach_region(
 379                         sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
 380                         );
 381
 382                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(
 383                                 _trackview.track()->playlist()
 384                         );
 385
 386                 if (apl) {
 387                         apl->foreach_crossfade (sigc::mem_fun (*this, &AudioStreamView::add_crossfade));
 388                 }
 389         }
 390
 391         // Remove invalid crossfade views
 392         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 393                 tmpx = xi;
 394                 tmpx++;
 395
 396                 if (!xi->second->valid()) {
 397                         delete xi->second;
 398                         crossfade_views.erase (xi);
 399                 }
 400
 401                 xi = tmpx;
 402         }
 403
 404         // Stack regions by layer, and remove invalid regions
 405         layer_regions();
 406 }
 407
 408 void
 409 AudioStreamView::set_show_waveforms (bool yn)
 410 {
 411         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 412                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 413                 if (arv) {
 414                         arv->set_waveform_visible (yn);
 415                 }
 416         }
 417 }
 418
 419 void
 420 AudioStreamView::set_waveform_shape (WaveformShape shape)
 421 {
 422         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 423                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 424                 if (arv)
 425                         arv->set_waveform_shape (shape);
 426         }
 427 }
 428
 429 void
 430 AudioStreamView::set_waveform_scale (WaveformScale scale)
 431 {
 432         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 433                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 434                 if (arv) {
 435                         arv->set_waveform_scale (scale);
 436                 }
 437         }
 438 }
 439
 440 void
 441 AudioStreamView::setup_rec_box ()
 442 {
 443         //cerr << _trackview.name() << " streamview SRB region_views.size() = " << region_views.size() << endl;
 444
 445         if (_trackview.session()->transport_rolling()) {
 446
 447                 // cerr << "\trolling\n";
 448
 449                 if (!rec_active &&
 450                     _trackview.session()->record_status() == Session::Recording &&
 451                     _trackview.track()->record_enabled()) {
 452                         if (_trackview.audio_track()->mode() == Normal && Config->get_show_waveforms_while_recording() && rec_regions.size() == rec_rects.size()) {
 453
 454                                 /* add a new region, but don't bother if they set show-waveforms-while-recording mid-record */
 455
 456                                 SourceList sources;
 457
 458                                 rec_data_ready_connections.drop_connections ();
 459                                 boost::shared_ptr<AudioTrack> tr = _trackview.audio_track();
 460
 461                                 for (uint32_t n = 0; n < tr->n_channels().n_audio(); ++n) {
 462                                         boost::shared_ptr<AudioFileSource> src = tr->write_source (n);
 463                                         if (src) {
 464                                                 sources.push_back (src);
 465                                                 src->PeakRangeReady.connect (rec_data_ready_connections,
 466                                                                              invalidator (*this),
 467                                                                              ui_bind (&AudioStreamView::rec_peak_range_ready, this, _1, _2, boost::weak_ptr<Source>(src)),
 468                                                                              gui_context());
 469                                         }
 470                                 }
 471
 472                                 // handle multi
 473
 474                                 nframes_t start = 0;
 475                                 if (rec_regions.size() > 0) {
 476                                         start = rec_regions.back().first->start()
 477                                                         + _trackview.track()->get_captured_frames(rec_regions.size()-1);
 478                                 }
 479
 480                                 PropertyList plist;
 481
 482                                 plist.add (Properties::start, start);
 483                                 plist.add (Properties::length, 1);
 484                                 plist.add (Properties::name, string());
 485                                 plist.add (Properties::layer, 0);
 486
 487                                 boost::shared_ptr<AudioRegion> region (
 488                                         boost::dynamic_pointer_cast<AudioRegion>(RegionFactory::create (sources, plist, false)));
 489
 490                                 assert(region);
 491                                 region->suspend_property_changes ();
 492                                 region->set_position (_trackview.session()->transport_frame(), this);
 493                                 rec_regions.push_back (make_pair(region, (RegionView*) 0));
 494                         }
 495
 496                         /* start a new rec box */
 497
 498                         boost::shared_ptr<AudioTrack> at;
 499
 500                         at = _trackview.audio_track(); /* we know what it is already */
 501                         nframes_t frame_pos = at->current_capture_start ();
 502                         gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
 503                         gdouble xend;
 504                         uint32_t fill_color;
 505
 506                         switch (_trackview.audio_track()->mode()) {
 507                         case Normal:
 508                         case NonLayered:
 509                                 xend = xstart;
 510                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 511                                 break;
 512
 513                         case Destructive:
 514                                 xend = xstart + 2;
 515                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 516                                 /* make the recording rect translucent to allow
 517                                    the user to see the peak data coming in, etc.
 518                                 */
 519                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 520                                 break;
 521                         }
 522
 523                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*_canvas_group);
 524                         rec_rect->property_x1() = xstart;
 525                         rec_rect->property_y1() = 1.0;
 526                         rec_rect->property_x2() = xend;
 527                         rec_rect->property_y2() = child_height ();
 528                         rec_rect->property_outline_what() = 0x0;
 529                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 530                         rec_rect->property_fill_color_rgba() = fill_color;
 531                         rec_rect->lower_to_bottom();
 532
 533                         RecBoxInfo recbox;
 534                         recbox.rectangle = rec_rect;
 535                         recbox.start = _trackview.session()->transport_frame();
 536                         recbox.length = 0;
 537
 538                         rec_rects.push_back (recbox);
 539
 540                         screen_update_connection.disconnect();
 541                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
 542                                         sigc::mem_fun (*this, &AudioStreamView::update_rec_box));
 543                         rec_updating = true;
 544                         rec_active = true;
 545
 546                 } else if (rec_active &&
 547                            (_trackview.session()->record_status() != Session::Recording ||
 548                             !_trackview.track()->record_enabled())) {
 549                         screen_update_connection.disconnect();
 550                         rec_active = false;
 551                         rec_updating = false;
 552                 }
 553
 554         } else {
 555
 556                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 557
 558                 if (!rec_rects.empty() || !rec_regions.empty()) {
 559
 560                         /* disconnect rapid update */
 561                         screen_update_connection.disconnect();
 562                         rec_data_ready_connections.drop_connections ();
 563                         rec_updating = false;
 564                         rec_active = false;
 565
 566                         /* remove temp regions */
 567
 568                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 569                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 570
 571                                 tmp = iter;
 572                                 ++tmp;
 573
 574                                 (*iter).first->drop_references ();
 575
 576                                 iter = tmp;
 577                         }
 578
 579                         rec_regions.clear();
 580
 581                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 582
 583                         /* transport stopped, clear boxes */
 584                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 585                                 RecBoxInfo &rect = (*iter);
 586                                 delete rect.rectangle;
 587                         }
 588
 589                         rec_rects.clear();
 590
 591                 }
 592         }
 593 }
 594
 595 void
 596 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 597 {
 598         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 599                 (i->second->*pmf) ();
 600         }
 601 }
 602
 603 void
 604 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 605 {
 606         ENSURE_GUI_THREAD (*this, &AudioStreamView::rec_peak_range_ready, start, cnt, weak_src)
 607
 608         boost::shared_ptr<Source> src (weak_src.lock());
 609
 610         if (!src) {
 611                 return;
 612         }
 613
 614         // this is called from the peak building thread
 615
 616         if (rec_data_ready_map.size() == 0 || start + cnt > last_rec_data_frame) {
 617                 last_rec_data_frame = start + cnt;
 618         }
 619
 620         rec_data_ready_map[src] = true;
 621
 622         if (rec_data_ready_map.size() == _trackview.track()->n_channels().n_audio()) {
 623                 this->update_rec_regions ();
 624                 rec_data_ready_map.clear();
 625         }
 626 }
 627
 628 void
 629 AudioStreamView::update_rec_regions ()
 630 {
 631         if (Config->get_show_waveforms_while_recording ()) {
 632                 uint32_t n = 0;
 633
 634                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin();
 635                                 iter != rec_regions.end(); n++) {
 636
 637                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp = iter;
 638                         ++tmp;
 639
 640                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 641                                 /* rect already hidden, this region is done */
 642                                 iter = tmp;
 643                                 continue;
 644                         }
 645
 646                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 647
 648                         if (!region) {
 649                                 iter = tmp;
 650                                 continue;
 651                         }
 652
 653                         nframes_t origlen = region->length();
 654
 655                         if (region == rec_regions.back().first && rec_active) {
 656
 657                                 if (last_rec_data_frame > region->start()) {
 658
 659                                         nframes_t nlen = last_rec_data_frame - region->start();
 660
 661                                         if (nlen != region->length()) {
 662
 663                                                 region->suspend_property_changes ();
 664                                                 region->set_position (_trackview.track()->get_capture_start_frame(n), this);
 665                                                 region->set_length (nlen, this);
 666                                                 region->resume_property_changes ();
 667
 668                                                 if (origlen == 1) {
 669                                                         /* our special initial length */
 670                                                         add_region_view_internal (region, false, true);
 671                                                 }
 672
 673                                                 /* also update rect */
 674                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 675                                                 gdouble xend = _trackview.editor().frame_to_pixel (region->position() + region->length());
 676                                                 rect->property_x2() = xend;
 677                                         }
 678                                 }
 679
 680                         } else {
 681
 682                                 nframes_t nlen = _trackview.track()->get_captured_frames(n);
 683
 684                                 if (nlen != region->length()) {
 685
 686                                         if (region->source_length(0) >= region->start() + nlen) {
 687
 688                                                 region->suspend_property_changes ();
 689                                                 region->set_position (_trackview.track()->get_capture_start_frame(n), this);
 690                                                 region->set_length (nlen, this);
 691                                                 region->resume_property_changes ();
 692
 693                                                 if (origlen == 1) {
 694                                                         /* our special initial length */
 695                                                         add_region_view_internal (region, false, true);
 696                                                 }
 697
 698                                                 /* also hide rect */
 699                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 700                                                 rect->hide();
 701
 702                                         }
 703                                 }
 704                         }
 705
 706                         iter = tmp;
 707                 }
 708         }
 709 }
 710
 711 void
 712 AudioStreamView::show_all_fades ()
 713 {
 714         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 715                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 716                 if (arv) {
 717                         arv->set_fade_visibility (true);
 718                 }
 719         }
 720 }
 721
 722 void
 723 AudioStreamView::hide_all_fades ()
 724 {
 725         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 726                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 727                 if (arv) {
 728                         arv->set_fade_visibility (false);
 729                 }
 730         }
 731 }
 732
 733 void
 734 AudioStreamView::show_all_xfades ()
 735 {
 736         foreach_crossfadeview (&CrossfadeView::show);
 737         crossfades_visible = true;
 738 }
 739
 740 void
 741 AudioStreamView::hide_all_xfades ()
 742 {
 743         foreach_crossfadeview (&CrossfadeView::hide);
 744         crossfades_visible = false;
 745 }
 746
 747 void
 748 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 749 {
 750         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 751                 if (i->second->crossfade->involves (rv.audio_region())) {
 752                         i->second->fake_hide ();
 753                 }
 754         }
 755 }
 756
 757 void
 758 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 759 {
 760         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 761                 if (i->second->crossfade->involves (rv.audio_region()) && i->second->visible()) {
 762                         i->second->show ();
 763                 }
 764         }
 765 }
 766
 767 void
 768 AudioStreamView::color_handler ()
 769 {
 770         //case cAudioTrackBase:
 771         if (_trackview.is_track()) {
 772                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 773         }
 774
 775         //case cAudioBusBase:
 776         if (!_trackview.is_track()) {
 777                 if (Profile->get_sae() && _trackview.route()->is_master()) {
 778                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioMasterBusBase.get();
 779                 } else {
 780                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 781                 }
 782         }
 783 }
 784
 785 void
 786 AudioStreamView::update_contents_height ()
 787 {
 788         StreamView::update_contents_height ();
 789
 790         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 791                 update_content_height (i->second);
 792         }
 793 }
 794
 795 void
 796 AudioStreamView::update_content_height (CrossfadeView* cv)
 797 {
 798         if (_layer_display == Overlaid) {
 799
 800                 cv->set_y (0);
 801                 cv->set_height (height);
 802
 803         } else {
 804
 805                 layer_t const inl = cv->crossfade->in()->layer ();
 806                 layer_t const outl = cv->crossfade->out()->layer ();
 807
 808                 layer_t const high = max (inl, outl);
 809                 layer_t const low = min (inl, outl);
 810
 811                 const double h = child_height ();
 812
 813                 cv->set_y ((_layers - high - 1) * h);
 814                 cv->set_height ((high - low + 1) * h);
 815
 816         }
 817 }
 818
 819 void
 820 AudioStreamView::parameter_changed (string const & p)
 821 {
 822         if (p == "show-waveforms") {
 823                 set_show_waveforms (Config->get_show_waveforms ());
 824         } else if (p == "waveform-scale") {
 825                 set_waveform_scale (Config->get_waveform_scale ());
 826         } else if (p == "waveform-shape") {
 827                 set_waveform_shape (Config->get_waveform_shape ());
 828         }
 829 }