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_diskstream.h"
  33 #include "ardour/audio_track.h"
  34 #include "ardour/source.h"
  35 #include "ardour/region_factory.h"
  36 #include "ardour/profile.h"
  37 #include "ardour/rc_configuration.h"
  38 #include "ardour/session.h"
  39
  40 #include "audio_streamview.h"
  41 #include "audio_region_view.h"
  42 #include "tape_region_view.h"
  43 #include "audio_time_axis.h"
  44 #include "canvas-waveview.h"
  45 #include "canvas-simplerect.h"
  46 #include "region_selection.h"
  47 #include "selection.h"
  48 #include "public_editor.h"
  49 #include "ardour_ui.h"
  50 #include "crossfade_view.h"
  51 #include "rgb_macros.h"
  52 #include "gui_thread.h"
  53 #include "utils.h"
  54
  55 #include "i18n.h"
  56
  57 using namespace std;
  58 using namespace ARDOUR;
  59 using namespace PBD;
  60 using namespace Editing;
  61
  62 AudioStreamView::AudioStreamView (AudioTimeAxisView& tv)
  63         : StreamView (tv)
  64 {
  65         crossfades_visible = true;
  66         color_handler ();
  67         _amplitude_above_axis = 1.0;
  68
  69         Config->ParameterChanged.connect (*this, invalidator (*this), ui_bind (&AudioStreamView::parameter_changed, this, _1), gui_context());
  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->DropReferences.connect (*this, invalidator (*this), boost::bind (&AudioStreamView::remove_region_view, this, boost::weak_ptr<Region> (r)), gui_context());
 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         boost::shared_ptr<Region> r (weak_r.lock());
 206
 207         if (!r) {
 208                 return;
 209         }
 210
 211         if (!_trackview.session()->deletion_in_progress()) {
 212
 213                 for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 214                         CrossfadeViewList::iterator tmp;
 215
 216                         tmp = i;
 217                         ++tmp;
 218
 219                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 220                         if (ar && i->second->crossfade->involves (ar)) {
 221                                 delete i->second;
 222                                 crossfade_views.erase (i);
 223                         }
 224
 225                         i = tmp;
 226                 }
 227         }
 228
 229         StreamView::remove_region_view(r);
 230 }
 231
 232 void
 233 AudioStreamView::undisplay_diskstream ()
 234 {
 235         StreamView::undisplay_diskstream();
 236
 237         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 238                 delete i->second;
 239         }
 240
 241         crossfade_views.clear ();
 242 }
 243
 244 void
 245 AudioStreamView::playlist_layered (boost::weak_ptr<Diskstream> wds)
 246 {
 247         boost::shared_ptr<Diskstream> ds (wds.lock());
 248
 249         if (!ds) {
 250                 return;
 251         }
 252
 253         StreamView::playlist_layered (wds);
 254
 255         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 256
 257         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 258                 i->second->get_canvas_group()->raise_to_top();
 259         }
 260 }
 261
 262 void
 263 AudioStreamView::playlist_switched (boost::weak_ptr<Diskstream> wds)
 264 {
 265         boost::shared_ptr<Diskstream> ds (wds.lock());
 266
 267         if (!ds) {
 268                 return;
 269         }
 270
 271         playlist_connections.drop_connections ();
 272
 273         StreamView::playlist_switched (ds);
 274
 275         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 276
 277         if (apl) {
 278                 apl->NewCrossfade.connect (playlist_connections, invalidator (*this), ui_bind (&AudioStreamView::add_crossfade, this, _1), gui_context());
 279         }
 280 }
 281
 282 void
 283 AudioStreamView::add_crossfade (boost::weak_ptr<Crossfade> wc)
 284 {
 285         boost::shared_ptr<Crossfade> crossfade (wc.lock());
 286
 287         if (!crossfade) {
 288                 return;
 289         }
 290
 291         AudioRegionView* lview = 0;
 292         AudioRegionView* rview = 0;
 293
 294         /* first see if we already have a CrossfadeView for this Crossfade */
 295
 296         CrossfadeViewList::iterator i = crossfade_views.find (crossfade);
 297         if (i != crossfade_views.end()) {
 298                 if (!crossfades_visible) {
 299                         i->second->hide();
 300                 } else {
 301                         i->second->show ();
 302                 }
 303                 i->second->set_valid (true);
 304                 return;
 305         }
 306
 307         /* create a new one */
 308
 309         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 310                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 311
 312                 if (!lview && arv && (arv->region() == crossfade->out())) {
 313                         lview = arv;
 314                 }
 315                 if (!rview && arv && (arv->region() == crossfade->in())) {
 316                         rview = arv;
 317                 }
 318         }
 319
 320         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display (),
 321                                                _trackview,
 322                                                 crossfade,
 323                                                _samples_per_unit,
 324                                                region_color,
 325                                                *lview, *rview);
 326         cv->set_valid (true);
 327         crossfade->Invalidated.connect (*this, invalidator (*this), ui_bind (&AudioStreamView::remove_crossfade, this, _1), gui_context());
 328         crossfade_views[cv->crossfade] = cv;
 329         if (!_trackview.session()->config.get_xfades_visible() || !crossfades_visible) {
 330                 cv->hide ();
 331         }
 332
 333         update_content_height (cv);
 334 }
 335
 336 void
 337 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 338 {
 339         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_crossfade, r)
 340
 341         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 342
 343         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 344                 if (i->second->crossfade == xfade) {
 345                         delete i->second;
 346                         crossfade_views.erase (i);
 347                         break;
 348                 }
 349         }
 350 }
 351
 352 void
 353 AudioStreamView::redisplay_diskstream ()
 354 {
 355         list<RegionView *>::iterator i;
 356         CrossfadeViewList::iterator xi, tmpx;
 357
 358         // Flag region views as invalid and disable drawing
 359         for (i = region_views.begin(); i != region_views.end(); ++i) {
 360                 (*i)->set_valid (false);
 361                 (*i)->enable_display (false);
 362         }
 363
 364         // Flag crossfade views as invalid
 365         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 366                 xi->second->set_valid (false);
 367                 if (xi->second->visible()) {
 368                         xi->second->show ();
 369                 }
 370         }
 371
 372         // Add and display region and crossfade views, and flag them as valid
 373
 374         if (_trackview.is_audio_track()) {
 375                 _trackview.get_diskstream()->playlist()->foreach_region(
 376                         sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
 377                         );
 378
 379                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(
 380                                 _trackview.get_diskstream()->playlist()
 381                         );
 382
 383                 if (apl) {
 384                         apl->foreach_crossfade (sigc::mem_fun (*this, &AudioStreamView::add_crossfade));
 385                 }
 386         }
 387
 388         // Remove invalid crossfade views
 389         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 390                 tmpx = xi;
 391                 tmpx++;
 392
 393                 if (!xi->second->valid()) {
 394                         delete xi->second;
 395                         crossfade_views.erase (xi);
 396                 }
 397
 398                 xi = tmpx;
 399         }
 400
 401         // Stack regions by layer, and remove invalid regions
 402         layer_regions();
 403 }
 404
 405 void
 406 AudioStreamView::set_show_waveforms (bool yn)
 407 {
 408         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 409                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 410                 if (arv) {
 411                         arv->set_waveform_visible (yn);
 412                 }
 413         }
 414 }
 415
 416 void
 417 AudioStreamView::set_waveform_shape (WaveformShape shape)
 418 {
 419         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 420                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 421                 if (arv)
 422                         arv->set_waveform_shape (shape);
 423         }
 424 }
 425
 426 void
 427 AudioStreamView::set_waveform_scale (WaveformScale scale)
 428 {
 429         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 430                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 431                 if (arv) {
 432                         arv->set_waveform_scale (scale);
 433                 }
 434         }
 435 }
 436
 437 void
 438 AudioStreamView::setup_rec_box ()
 439 {
 440         //cerr << _trackview.name() << " streamview SRB region_views.size() = " << region_views.size() << endl;
 441
 442         if (_trackview.session()->transport_rolling()) {
 443
 444                 // cerr << "\trolling\n";
 445
 446                 if (!rec_active &&
 447                     _trackview.session()->record_status() == Session::Recording &&
 448                     _trackview.get_diskstream()->record_enabled()) {
 449                         if (_trackview.audio_track()->mode() == Normal && Config->get_show_waveforms_while_recording() && rec_regions.size() == rec_rects.size()) {
 450
 451                                 /* add a new region, but don't bother if they set show-waveforms-while-recording mid-record */
 452
 453                                 SourceList sources;
 454
 455                                 rec_data_ready_connections.drop_connections ();
 456                                 boost::shared_ptr<AudioDiskstream> ads = _trackview.audio_track()->audio_diskstream();
 457
 458                                 for (uint32_t n=0; n < ads->n_channels().n_audio(); ++n) {
 459                                         boost::shared_ptr<AudioFileSource> src = ads->write_source (n);
 460                                         if (src) {
 461                                                 sources.push_back (src);
 462                                                 src->PeakRangeReady.connect (rec_data_ready_connections,
 463                                                                              invalidator (*this),
 464                                                                              ui_bind (&AudioStreamView::rec_peak_range_ready, this, _1, _2, boost::weak_ptr<Source>(src)),
 465                                                                              gui_context());
 466                                         }
 467                                 }
 468
 469                                 // handle multi
 470
 471                                 nframes_t start = 0;
 472                                 if (rec_regions.size() > 0) {
 473                                         start = rec_regions.back().first->start()
 474                                                         + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 475                                 }
 476
 477                                 PropertyList plist;
 478
 479                                 plist.add (Properties::start, start);
 480                                 plist.add (Properties::length, 1);
 481                                 plist.add (Properties::name, string());
 482                                 plist.add (Properties::layer, 0);
 483
 484                                 boost::shared_ptr<AudioRegion> region (
 485                                         boost::dynamic_pointer_cast<AudioRegion>(RegionFactory::create (sources, plist, false)));
 486
 487                                 assert(region);
 488                                 region->block_property_changes ();
 489                                 region->set_position (_trackview.session()->transport_frame(), this);
 490                                 rec_regions.push_back (make_pair(region, (RegionView*)0));
 491                         }
 492
 493                         /* start a new rec box */
 494
 495                         boost::shared_ptr<AudioTrack> at;
 496
 497                         at = _trackview.audio_track(); /* we know what it is already */
 498                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 499                         nframes_t frame_pos = ds->current_capture_start ();
 500                         gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
 501                         gdouble xend;
 502                         uint32_t fill_color;
 503
 504                         switch (_trackview.audio_track()->mode()) {
 505                         case Normal:
 506                         case NonLayered:
 507                                 xend = xstart;
 508                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 509                                 break;
 510
 511                         case Destructive:
 512                                 xend = xstart + 2;
 513                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 514                                 /* make the recording rect translucent to allow
 515                                    the user to see the peak data coming in, etc.
 516                                 */
 517                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 518                                 break;
 519                         }
 520
 521                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 522                         rec_rect->property_x1() = xstart;
 523                         rec_rect->property_y1() = 1.0;
 524                         rec_rect->property_x2() = xend;
 525                         rec_rect->property_y2() = child_height ();
 526                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 527                         rec_rect->property_outline_what() = 0x1 | 0x2 | 0x4 | 0x8;
 528                         rec_rect->property_fill_color_rgba() = fill_color;
 529                         rec_rect->lower_to_bottom();
 530
 531                         RecBoxInfo recbox;
 532                         recbox.rectangle = rec_rect;
 533                         recbox.start = _trackview.session()->transport_frame();
 534                         recbox.length = 0;
 535
 536                         rec_rects.push_back (recbox);
 537
 538                         screen_update_connection.disconnect();
 539                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
 540                                         sigc::mem_fun (*this, &AudioStreamView::update_rec_box));
 541                         rec_updating = true;
 542                         rec_active = true;
 543
 544                 } else if (rec_active &&
 545                            (_trackview.session()->record_status() != Session::Recording ||
 546                             !_trackview.get_diskstream()->record_enabled())) {
 547                         screen_update_connection.disconnect();
 548                         rec_active = false;
 549                         rec_updating = false;
 550                 }
 551
 552         } else {
 553
 554                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 555
 556                 if (!rec_rects.empty() || !rec_regions.empty()) {
 557
 558                         /* disconnect rapid update */
 559                         screen_update_connection.disconnect();
 560                         rec_data_ready_connections.drop_connections ();
 561                         rec_updating = false;
 562                         rec_active = false;
 563
 564                         /* remove temp regions */
 565
 566                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 567                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 568
 569                                 tmp = iter;
 570                                 ++tmp;
 571
 572                                 (*iter).first->drop_references ();
 573
 574                                 iter = tmp;
 575                         }
 576
 577                         rec_regions.clear();
 578
 579                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 580
 581                         /* transport stopped, clear boxes */
 582                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 583                                 RecBoxInfo &rect = (*iter);
 584                                 delete rect.rectangle;
 585                         }
 586
 587                         rec_rects.clear();
 588
 589                 }
 590         }
 591 }
 592
 593 void
 594 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 595 {
 596         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 597                 (i->second->*pmf) ();
 598         }
 599 }
 600
 601 void
 602 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 603 {
 604         ENSURE_GUI_THREAD (*this, &AudioStreamView::rec_peak_range_ready, start, cnt, weak_src)
 605
 606         boost::shared_ptr<Source> src (weak_src.lock());
 607
 608         if (!src) {
 609                 return;
 610         }
 611
 612         // this is called from the peak building thread
 613
 614         if (rec_data_ready_map.size() == 0 || start + cnt > last_rec_data_frame) {
 615                 last_rec_data_frame = start + cnt;
 616         }
 617
 618         rec_data_ready_map[src] = true;
 619
 620         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().n_audio()) {
 621                 this->update_rec_regions ();
 622                 rec_data_ready_map.clear();
 623         }
 624 }
 625
 626 void
 627 AudioStreamView::update_rec_regions ()
 628 {
 629         if (Config->get_show_waveforms_while_recording ()) {
 630                 uint32_t n = 0;
 631
 632                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin();
 633                                 iter != rec_regions.end(); n++) {
 634
 635                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp = iter;
 636                         ++tmp;
 637
 638                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 639                                 /* rect already hidden, this region is done */
 640                                 iter = tmp;
 641                                 continue;
 642                         }
 643
 644                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 645                         if (!region) {
 646                                 iter = tmp;
 647                                 continue;
 648                         }
 649
 650                         nframes_t origlen = region->length();
 651
 652                         if (region == rec_regions.back().first && rec_active) {
 653
 654                                 if (last_rec_data_frame > region->start()) {
 655
 656                                         nframes_t nlen = last_rec_data_frame - region->start();
 657
 658                                         if (nlen != region->length()) {
 659
 660                                                 region->suspend_property_changes ();
 661                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 662                                                 region->set_length (nlen, this);
 663                                                 region->resume_property_changes ();
 664
 665                                                 if (origlen == 1) {
 666                                                         /* our special initial length */
 667                                                         add_region_view_internal (region, false, true);
 668                                                 }
 669
 670                                                 /* also update rect */
 671                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 672                                                 gdouble xend = _trackview.editor().frame_to_pixel (region->position() + region->length());
 673                                                 rect->property_x2() = xend;
 674                                         }
 675                                 }
 676
 677                         } else {
 678
 679                                 nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 680
 681                                 if (nlen != region->length()) {
 682
 683                                         if (region->source_length(0) >= region->start() + nlen) {
 684
 685                                                 region->suspend_property_changes ();
 686                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 687                                                 region->set_length (nlen, this);
 688                                                 region->resume_property_changes ();
 689
 690                                                 if (origlen == 1) {
 691                                                         /* our special initial length */
 692                                                         add_region_view_internal (region, false, true);
 693                                                 }
 694
 695                                                 /* also hide rect */
 696                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 697                                                 rect->hide();
 698
 699                                         }
 700                                 }
 701                         }
 702
 703                         iter = tmp;
 704                 }
 705         }
 706 }
 707
 708 void
 709 AudioStreamView::show_all_fades ()
 710 {
 711         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 712                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 713                 if (arv) {
 714                         arv->set_fade_visibility (true);
 715                 }
 716         }
 717 }
 718
 719 void
 720 AudioStreamView::hide_all_fades ()
 721 {
 722         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 723                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 724                 if (arv) {
 725                         arv->set_fade_visibility (false);
 726                 }
 727         }
 728 }
 729
 730 void
 731 AudioStreamView::show_all_xfades ()
 732 {
 733         foreach_crossfadeview (&CrossfadeView::show);
 734         crossfades_visible = true;
 735 }
 736
 737 void
 738 AudioStreamView::hide_all_xfades ()
 739 {
 740         foreach_crossfadeview (&CrossfadeView::hide);
 741         crossfades_visible = false;
 742 }
 743
 744 void
 745 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 746 {
 747         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 748                 if (i->second->crossfade->involves (rv.audio_region())) {
 749                         i->second->fake_hide ();
 750                 }
 751         }
 752 }
 753
 754 void
 755 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 756 {
 757         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 758                 if (i->second->crossfade->involves (rv.audio_region()) && i->second->visible()) {
 759                         i->second->show ();
 760                 }
 761         }
 762 }
 763
 764 void
 765 AudioStreamView::color_handler ()
 766 {
 767         //case cAudioTrackBase:
 768         if (_trackview.is_track()) {
 769                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 770         }
 771
 772         //case cAudioBusBase:
 773         if (!_trackview.is_track()) {
 774                 if (Profile->get_sae() && _trackview.route()->is_master()) {
 775                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioMasterBusBase.get();
 776                 } else {
 777                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 778                 }
 779         }
 780 }
 781
 782 void
 783 AudioStreamView::update_contents_height ()
 784 {
 785         StreamView::update_contents_height ();
 786
 787         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 788                 update_content_height (i->second);
 789         }
 790 }
 791
 792 void
 793 AudioStreamView::update_content_height (CrossfadeView* cv)
 794 {
 795         cv->show ();
 796
 797         if (_layer_display == Overlaid) {
 798
 799                 cv->set_y (0);
 800                 cv->set_height (height);
 801
 802         } else {
 803
 804                 layer_t const inl = cv->crossfade->in()->layer ();
 805                 layer_t const outl = cv->crossfade->out()->layer ();
 806
 807                 layer_t const high = max (inl, outl);
 808                 layer_t const low = min (inl, outl);
 809
 810                 const double h = child_height ();
 811
 812                 cv->set_y ((_layers - high - 1) * h);
 813                 cv->set_height ((high - low + 1) * h);
 814
 815         }
 816 }
 817
 818 void
 819 AudioStreamView::parameter_changed (string const & p)
 820 {
 821         if (p == "show-waveforms") {
 822                 set_show_waveforms (Config->get_show_waveforms ());
 823         } else if (p == "waveform-scale") {
 824                 set_waveform_scale (Config->get_waveform_scale ());
 825         } else if (p == "waveform-shape") {
 826                 set_waveform_shape (Config->get_waveform_shape ());
 827         }
 828 }