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         use_rec_regions = tv.editor().show_waveforms_recording ();
  70
  71         Config->ParameterChanged.connect (*this, ui_bind (&AudioStreamView::parameter_changed, this, _1), gui_context());
  72 }
  73
  74 AudioStreamView::~AudioStreamView ()
  75 {
  76 }
  77
  78 int
  79 AudioStreamView::set_samples_per_unit (gdouble spp)
  80 {
  81         StreamView::set_samples_per_unit(spp);
  82
  83         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
  84                 xi->second->set_samples_per_unit (spp);
  85         }
  86
  87         return 0;
  88 }
  89
  90 int
  91 AudioStreamView::set_amplitude_above_axis (gdouble app)
  92 {
  93         RegionViewList::iterator i;
  94
  95         if (app < 1.0) {
  96                 return -1;
  97         }
  98
  99         _amplitude_above_axis = app;
 100
 101         for (i = region_views.begin(); i != region_views.end(); ++i) {
 102                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 103                 if (arv)
 104                         arv->set_amplitude_above_axis (app);
 105         }
 106
 107         return 0;
 108 }
 109
 110 RegionView*
 111 AudioStreamView::create_region_view (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
 112 {
 113         AudioRegionView *region_view = 0;
 114         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion> (r);
 115
 116         if (region == 0) {
 117                 return 0;
 118         }
 119
 120         switch (_trackview.audio_track()->mode()) {
 121
 122         case NonLayered:
 123         case Normal:
 124                 if (recording) {
 125                         region_view = new AudioRegionView (canvas_group, _trackview, region,
 126                                         _samples_per_unit, region_color, recording, TimeAxisViewItem::Visibility(
 127                                                         TimeAxisViewItem::ShowFrame | TimeAxisViewItem::HideFrameRight));
 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         if (region_view == 0) {
 167                 return 0;
 168         }
 169
 170 //      if(!recording){
 171 //              for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 172 //                      if ((*i)->region() == r) {
 173 //                              cerr << "audio_streamview in add_region_view_internal region found" << endl;
 174                                 /* great. we already have a AudioRegionView for this Region. use it again. */
 175
 176 //                              (*i)->set_valid (true);
 177
 178                                 // this might not be necessary
 179 //                              AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 180
 181 //                              if (arv) {
 182 //                                      arv->set_waveform_scale (_waveform_scale);
 183 //                                      arv->set_waveform_shape (_waveform_shape);
 184 //                              }
 185
 186 //                              return NULL;
 187 //                      }
 188 //              }
 189 //      }
 190
 191         region_views.push_front (region_view);
 192
 193         /* catch region going away */
 194
 195         r->DropReferences.connect (*this, boost::bind (&AudioStreamView::remove_region_view, this, boost::weak_ptr<Region> (r)), gui_context());
 196
 197         RegionViewAdded (region_view);
 198
 199         return region_view;
 200 }
 201
 202 void
 203 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 204 {
 205         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_region_view, weak_r);
 206
 207         boost::shared_ptr<Region> r (weak_r.lock());
 208
 209         if (!r) {
 210                 return;
 211         }
 212
 213         cerr << "a region went way, it appears to be ours (" << this << ")\n";
 214
 215         if (!_trackview.session()->deletion_in_progress()) {
 216
 217                 for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 218                         CrossfadeViewList::iterator tmp;
 219
 220                         tmp = i;
 221                         ++tmp;
 222
 223                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 224                         if (ar && i->second->crossfade->involves (ar)) {
 225                                 delete i->second;
 226                                 crossfade_views.erase (i);
 227                         }
 228
 229                         i = tmp;
 230                 }
 231         }
 232
 233         StreamView::remove_region_view(r);
 234 }
 235
 236 void
 237 AudioStreamView::undisplay_diskstream ()
 238 {
 239         StreamView::undisplay_diskstream();
 240
 241         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 242                 delete i->second;
 243         }
 244
 245         crossfade_views.clear ();
 246 }
 247
 248 void
 249 AudioStreamView::playlist_layered (boost::weak_ptr<Diskstream> wds)
 250 {
 251         boost::shared_ptr<Diskstream> ds (wds.lock());
 252
 253         if (!ds) {
 254                 return;
 255         }
 256
 257         StreamView::playlist_layered (wds);
 258
 259         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 260
 261         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 262                 i->second->get_canvas_group()->raise_to_top();
 263         }
 264 }
 265
 266 void
 267 AudioStreamView::playlist_switched (boost::weak_ptr<Diskstream> wds)
 268 {
 269         boost::shared_ptr<Diskstream> ds (wds.lock());
 270
 271         if (!ds) {
 272                 return;
 273         }
 274
 275         playlist_connections.drop_connections ();
 276
 277         StreamView::playlist_switched (ds);
 278
 279         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
 280
 281         if (apl) {
 282                 apl->NewCrossfade.connect (playlist_connections, ui_bind (&AudioStreamView::add_crossfade, this, _1), gui_context());
 283         }
 284 }
 285
 286 void
 287 AudioStreamView::add_crossfade (boost::weak_ptr<Crossfade> wc)
 288 {
 289         boost::shared_ptr<Crossfade> crossfade (wc.lock());
 290
 291         if (!crossfade) {
 292                 return;
 293         }
 294
 295         AudioRegionView* lview = 0;
 296         AudioRegionView* rview = 0;
 297
 298         /* first see if we already have a CrossfadeView for this Crossfade */
 299
 300         CrossfadeViewList::iterator i = crossfade_views.find (crossfade);
 301         if (i != crossfade_views.end()) {
 302                 if (!crossfades_visible) {
 303                         i->second->hide();
 304                 } else {
 305                         i->second->show ();
 306                 }
 307                 i->second->set_valid (true);
 308                 return;
 309         }
 310
 311         /* create a new one */
 312
 313         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 314                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 315
 316                 if (!lview && arv && (arv->region() == crossfade->out())) {
 317                         lview = arv;
 318                 }
 319                 if (!rview && arv && (arv->region() == crossfade->in())) {
 320                         rview = arv;
 321                 }
 322         }
 323
 324         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display (),
 325                                                _trackview,
 326                                                 crossfade,
 327                                                _samples_per_unit,
 328                                                region_color,
 329                                                *lview, *rview);
 330         cv->set_valid (true);
 331         crossfade->Invalidated.connect (*this, ui_bind (&AudioStreamView::remove_crossfade, this, _1), gui_context());
 332         crossfade_views[cv->crossfade] = cv;
 333         if (!_trackview.session()->config.get_xfades_visible() || !crossfades_visible) {
 334                 cv->hide ();
 335         }
 336
 337         update_content_height (cv);
 338 }
 339
 340 void
 341 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 342 {
 343         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_crossfade, r)
 344
 345         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 346
 347         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 348                 if (i->second->crossfade == xfade) {
 349                         delete i->second;
 350                         crossfade_views.erase (i);
 351                         break;
 352                 }
 353         }
 354 }
 355
 356 void
 357 AudioStreamView::redisplay_diskstream ()
 358 {
 359         list<RegionView *>::iterator i;
 360         CrossfadeViewList::iterator xi, tmpx;
 361
 362         // Flag region views as invalid and disable drawing
 363         for (i = region_views.begin(); i != region_views.end(); ++i) {
 364                 (*i)->set_valid (false);
 365                 (*i)->enable_display (false);
 366         }
 367
 368         // Flag crossfade views as invalid
 369         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 370                 xi->second->set_valid (false);
 371                 if (xi->second->visible()) {
 372                         xi->second->show ();
 373                 }
 374         }
 375
 376         // Add and display region and crossfade views, and flag them as valid
 377
 378         if (_trackview.is_audio_track()) {
 379                 _trackview.get_diskstream()->playlist()->foreach_region(
 380                         sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
 381                         );
 382
 383                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(
 384                                 _trackview.get_diskstream()->playlist()
 385                         );
 386
 387                 if (apl) {
 388                         apl->foreach_crossfade (sigc::mem_fun (*this, &AudioStreamView::add_crossfade));
 389                 }
 390         }
 391
 392         // Remove invalid crossfade views
 393         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 394                 tmpx = xi;
 395                 tmpx++;
 396
 397                 if (!xi->second->valid()) {
 398                         delete xi->second;
 399                         crossfade_views.erase (xi);
 400                 }
 401
 402                 xi = tmpx;
 403         }
 404
 405         // Stack regions by layer, and remove invalid regions
 406         layer_regions();
 407 }
 408
 409 void
 410 AudioStreamView::set_show_waveforms (bool yn)
 411 {
 412         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 413                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 414                 if (arv) {
 415                         arv->set_waveform_visible (yn);
 416                 }
 417         }
 418 }
 419
 420 void
 421 AudioStreamView::set_waveform_shape (WaveformShape shape)
 422 {
 423         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 424                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 425                 if (arv)
 426                         arv->set_waveform_shape (shape);
 427         }
 428 }
 429
 430 void
 431 AudioStreamView::set_waveform_scale (WaveformScale scale)
 432 {
 433         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 434                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 435                 if (arv) {
 436                         arv->set_waveform_scale (scale);
 437                 }
 438         }
 439 }
 440
 441 void
 442 AudioStreamView::setup_rec_box ()
 443 {
 444         //cerr << _trackview.name() << " streamview SRB region_views.size() = " << region_views.size() << endl;
 445
 446         if (_trackview.session()->transport_rolling()) {
 447
 448                 // cerr << "\trolling\n";
 449
 450                 if (!rec_active &&
 451                     _trackview.session()->record_status() == Session::Recording &&
 452                     _trackview.get_diskstream()->record_enabled()) {
 453                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 454
 455                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 456
 457                                 SourceList sources;
 458
 459                                 rec_data_ready_connections.drop_connections ();
 460                                 boost::shared_ptr<AudioDiskstream> ads = _trackview.audio_track()->audio_diskstream();
 461
 462                                 for (uint32_t n=0; n < ads->n_channels().n_audio(); ++n) {
 463                                         boost::shared_ptr<AudioFileSource> src = ads->write_source (n);
 464                                         if (src) {
 465                                                 sources.push_back (src);
 466                                                 src->PeakRangeReady.connect (rec_data_ready_connections,
 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.get_diskstream()->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->block_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                         boost::shared_ptr<AudioDiskstream> ds = at->audio_diskstream();
 502                         nframes_t frame_pos = ds->current_capture_start ();
 503                         gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
 504                         gdouble xend;
 505                         uint32_t fill_color;
 506
 507                         switch (_trackview.audio_track()->mode()) {
 508                         case Normal:
 509                         case NonLayered:
 510                                 xend = xstart;
 511                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 512                                 break;
 513
 514                         case Destructive:
 515                                 xend = xstart + 2;
 516                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 517                                 /* make the recording rect translucent to allow
 518                                    the user to see the peak data coming in, etc.
 519                                 */
 520                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 521                                 break;
 522                         }
 523
 524                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 525                         rec_rect->property_x1() = xstart;
 526                         rec_rect->property_y1() = 1.0;
 527                         rec_rect->property_x2() = xend;
 528                         rec_rect->property_y2() = child_height ();
 529                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 530                         rec_rect->property_outline_what() = 0x1 | 0x2 | 0x4 | 0x8;
 531                         rec_rect->property_fill_color_rgba() = fill_color;
 532                         rec_rect->lower_to_bottom();
 533
 534                         RecBoxInfo recbox;
 535                         recbox.rectangle = rec_rect;
 536                         recbox.start = _trackview.session()->transport_frame();
 537                         recbox.length = 0;
 538
 539                         rec_rects.push_back (recbox);
 540
 541                         screen_update_connection.disconnect();
 542                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
 543                                         sigc::mem_fun (*this, &AudioStreamView::update_rec_box));
 544                         rec_updating = true;
 545                         rec_active = true;
 546
 547                 } else if (rec_active &&
 548                            (_trackview.session()->record_status() != Session::Recording ||
 549                             !_trackview.get_diskstream()->record_enabled())) {
 550                         screen_update_connection.disconnect();
 551                         rec_active = false;
 552                         rec_updating = false;
 553                 }
 554
 555         } else {
 556
 557                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 558
 559                 if (!rec_rects.empty() || !rec_regions.empty()) {
 560
 561                         /* disconnect rapid update */
 562                         screen_update_connection.disconnect();
 563                         rec_data_ready_connections.drop_connections ();
 564                         rec_updating = false;
 565                         rec_active = false;
 566
 567                         /* remove temp regions */
 568
 569                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 570                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 571
 572                                 tmp = iter;
 573                                 ++tmp;
 574
 575                                 (*iter).first->drop_references ();
 576
 577                                 iter = tmp;
 578                         }
 579
 580                         rec_regions.clear();
 581
 582                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 583
 584                         /* transport stopped, clear boxes */
 585                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 586                                 RecBoxInfo &rect = (*iter);
 587                                 delete rect.rectangle;
 588                         }
 589
 590                         rec_rects.clear();
 591
 592                 }
 593         }
 594 }
 595
 596 void
 597 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 598 {
 599         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 600                 (i->second->*pmf) ();
 601         }
 602 }
 603
 604 void
 605 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 606 {
 607         ENSURE_GUI_THREAD (*this, &AudioStreamView::rec_peak_range_ready, start, cnt, weak_src)
 608
 609         boost::shared_ptr<Source> src (weak_src.lock());
 610
 611         if (!src) {
 612                 return;
 613         }
 614
 615         // this is called from the peak building thread
 616
 617         if (rec_data_ready_map.size() == 0 || start + cnt > last_rec_data_frame) {
 618                 last_rec_data_frame = start + cnt;
 619         }
 620
 621         rec_data_ready_map[src] = true;
 622
 623         if (rec_data_ready_map.size() == _trackview.get_diskstream()->n_channels().n_audio()) {
 624                 this->update_rec_regions ();
 625                 rec_data_ready_map.clear();
 626         }
 627 }
 628
 629 void
 630 AudioStreamView::update_rec_regions ()
 631 {
 632         if (use_rec_regions) {
 633                 uint32_t n = 0;
 634
 635                 for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin();
 636                                 iter != rec_regions.end(); n++) {
 637
 638                         list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp = iter;
 639                         ++tmp;
 640
 641                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 642                                 /* rect already hidden, this region is done */
 643                                 iter = tmp;
 644                                 continue;
 645                         }
 646
 647                         boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 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.get_diskstream()->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.get_diskstream()->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.get_diskstream()->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         cv->show ();
 799
 800         if (_layer_display == Overlaid) {
 801
 802                 cv->set_y (0);
 803                 cv->set_height (height);
 804
 805         } else {
 806
 807                 layer_t const inl = cv->crossfade->in()->layer ();
 808                 layer_t const outl = cv->crossfade->out()->layer ();
 809
 810                 layer_t const high = max (inl, outl);
 811                 layer_t const low = min (inl, outl);
 812
 813                 const double h = child_height ();
 814
 815                 cv->set_y ((_layers - high - 1) * h);
 816                 cv->set_height ((high - low + 1) * h);
 817
 818         }
 819 }
 820
 821 void
 822 AudioStreamView::parameter_changed (string const & p)
 823 {
 824         if (p == "show-waveforms") {
 825                 set_show_waveforms (Config->get_show_waveforms ());
 826         } else if (p == "waveform-scale") {
 827                 set_waveform_scale (Config->get_waveform_scale ());
 828         } else if (p == "waveform-shape") {
 829                 set_waveform_shape (Config->get_waveform_shape ());
 830         }
 831 }