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->set_position (_trackview.session()->transport_frame(), this);
 492                                 rec_regions.push_back (make_pair(region, (RegionView*) 0));
 493                         }
 494
 495                         /* start a new rec box */
 496
 497                         boost::shared_ptr<AudioTrack> at;
 498
 499                         at = _trackview.audio_track(); /* we know what it is already */
 500                         framepos_t const frame_pos = at->current_capture_start ();
 501                         gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
 502                         gdouble xend;
 503                         uint32_t fill_color;
 504
 505                         switch (_trackview.audio_track()->mode()) {
 506                         case Normal:
 507                         case NonLayered:
 508                                 xend = xstart;
 509                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 510                                 break;
 511
 512                         case Destructive:
 513                                 xend = xstart + 2;
 514                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 515                                 /* make the recording rect translucent to allow
 516                                    the user to see the peak data coming in, etc.
 517                                 */
 518                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 519                                 break;
 520                         }
 521
 522                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*_canvas_group);
 523                         rec_rect->property_x1() = xstart;
 524                         rec_rect->property_y1() = 1.0;
 525                         rec_rect->property_x2() = xend;
 526                         rec_rect->property_y2() = child_height ();
 527                         rec_rect->property_outline_what() = 0x0;
 528                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 529                         rec_rect->property_fill_color_rgba() = fill_color;
 530                         rec_rect->lower_to_bottom();
 531
 532                         RecBoxInfo recbox;
 533                         recbox.rectangle = rec_rect;
 534                         recbox.start = _trackview.session()->transport_frame();
 535                         recbox.length = 0;
 536
 537                         rec_rects.push_back (recbox);
 538
 539                         screen_update_connection.disconnect();
 540                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
 541                                         sigc::mem_fun (*this, &AudioStreamView::update_rec_box));
 542                         rec_updating = true;
 543                         rec_active = true;
 544
 545                 } else if (rec_active &&
 546                            (_trackview.session()->record_status() != Session::Recording ||
 547                             !_trackview.track()->record_enabled())) {
 548                         screen_update_connection.disconnect();
 549                         rec_active = false;
 550                         rec_updating = false;
 551                 }
 552
 553         } else {
 554
 555                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 556
 557                 if (!rec_rects.empty() || !rec_regions.empty()) {
 558
 559                         /* disconnect rapid update */
 560                         screen_update_connection.disconnect();
 561                         rec_data_ready_connections.drop_connections ();
 562                         rec_updating = false;
 563                         rec_active = false;
 564
 565                         /* remove temp regions */
 566
 567                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 568                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 569
 570                                 tmp = iter;
 571                                 ++tmp;
 572
 573                                 (*iter).first->drop_references ();
 574
 575                                 iter = tmp;
 576                         }
 577
 578                         rec_regions.clear();
 579
 580                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 581
 582                         /* transport stopped, clear boxes */
 583                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 584                                 RecBoxInfo &rect = (*iter);
 585                                 delete rect.rectangle;
 586                         }
 587
 588                         rec_rects.clear();
 589
 590                 }
 591         }
 592 }
 593
 594 void
 595 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 596 {
 597         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 598                 (i->second->*pmf) ();
 599         }
 600 }
 601
 602 void
 603 AudioStreamView::rec_peak_range_ready (nframes_t start, nframes_t cnt, boost::weak_ptr<Source> weak_src)
 604 {
 605         ENSURE_GUI_THREAD (*this, &AudioStreamView::rec_peak_range_ready, start, cnt, weak_src)
 606
 607         boost::shared_ptr<Source> src (weak_src.lock());
 608
 609         if (!src) {
 610                 return;
 611         }
 612
 613         // this is called from the peak building thread
 614
 615         if (rec_data_ready_map.size() == 0 || start + cnt > last_rec_data_frame) {
 616                 last_rec_data_frame = start + cnt;
 617         }
 618
 619         rec_data_ready_map[src] = true;
 620
 621         if (rec_data_ready_map.size() == _trackview.track()->n_channels().n_audio()) {
 622                 update_rec_regions (start, cnt);
 623                 rec_data_ready_map.clear();
 624         }
 625 }
 626
 627 void
 628 AudioStreamView::update_rec_regions (framepos_t start, framecnt_t cnt)
 629 {
 630         if (!Config->get_show_waveforms_while_recording ()) {
 631                 return;
 632         }
 633
 634         uint32_t n = 0;
 635
 636         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 637
 638                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp = iter;
 639                 ++tmp;
 640
 641                 assert (n < rec_rects.size());
 642
 643                 if (!canvas_item_visible (rec_rects[n].rectangle)) {
 644                         /* rect already hidden, this region is done */
 645                         iter = tmp;
 646                         continue;
 647                 }
 648
 649                 boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 650
 651                 if (!region) {
 652                         iter = tmp;
 653                         continue;
 654                 }
 655
 656                 nframes_t origlen = region->length();
 657
 658                 if (region == rec_regions.back().first && rec_active) {
 659
 660                         if (last_rec_data_frame > region->start()) {
 661
 662                                 nframes_t nlen = last_rec_data_frame - region->start();
 663
 664                                 if (nlen != region->length()) {
 665
 666                                         region->suspend_property_changes ();
 667                                         region->set_position (_trackview.track()->get_capture_start_frame(n), this);
 668                                         region->set_length (nlen, this);
 669                                         region->resume_property_changes ();
 670
 671                                         if (origlen == 1) {
 672                                                 /* our special initial length */
 673                                                 add_region_view_internal (region, false, true);
 674                                                 setup_new_rec_layer_time (region);
 675                                         }
 676
 677                                         check_record_layers (region, (region->position() - region->start() + start + cnt));
 678
 679                                         /* also update rect */
 680                                         ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 681                                         gdouble xend = _trackview.editor().frame_to_pixel (region->position() + region->length());
 682                                         rect->property_x2() = xend;
 683                                 }
 684
 685                         } else {
 686
 687                                 nframes_t nlen = _trackview.track()->get_captured_frames(n);
 688
 689                                 if (nlen != region->length()) {
 690
 691                                         if (region->source_length(0) >= region->start() + nlen) {
 692
 693                                                 region->suspend_property_changes ();
 694                                                 region->set_position (_trackview.track()->get_capture_start_frame(n), this);
 695                                                 region->set_length (nlen, this);
 696                                                 region->resume_property_changes ();
 697
 698                                                 if (origlen == 1) {
 699                                                         /* our special initial length */
 700                                                         add_region_view_internal (region, false, true);
 701                                                 }
 702
 703                                                 /* also hide rect */
 704                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 705                                                 rect->hide();
 706
 707                                         }
 708                                 }
 709                         }
 710                 }
 711
 712                 iter = tmp;
 713         }
 714 }
 715
 716 void
 717 AudioStreamView::show_all_fades ()
 718 {
 719         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 720                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 721                 if (arv) {
 722                         arv->set_fade_visibility (true);
 723                 }
 724         }
 725 }
 726
 727 void
 728 AudioStreamView::hide_all_fades ()
 729 {
 730         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 731                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 732                 if (arv) {
 733                         arv->set_fade_visibility (false);
 734                 }
 735         }
 736 }
 737
 738 void
 739 AudioStreamView::show_all_xfades ()
 740 {
 741         foreach_crossfadeview (&CrossfadeView::show);
 742         crossfades_visible = true;
 743 }
 744
 745 void
 746 AudioStreamView::hide_all_xfades ()
 747 {
 748         foreach_crossfadeview (&CrossfadeView::hide);
 749         crossfades_visible = false;
 750 }
 751
 752 void
 753 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 754 {
 755         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 756                 if (i->second->crossfade->involves (rv.audio_region())) {
 757                         i->second->fake_hide ();
 758                 }
 759         }
 760 }
 761
 762 void
 763 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 764 {
 765         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 766                 if (i->second->crossfade->involves (rv.audio_region()) && i->second->visible()) {
 767                         i->second->show ();
 768                 }
 769         }
 770 }
 771
 772 void
 773 AudioStreamView::color_handler ()
 774 {
 775         //case cAudioTrackBase:
 776         if (_trackview.is_track()) {
 777                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 778         }
 779
 780         //case cAudioBusBase:
 781         if (!_trackview.is_track()) {
 782                 if (Profile->get_sae() && _trackview.route()->is_master()) {
 783                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioMasterBusBase.get();
 784                 } else {
 785                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 786                 }
 787         }
 788 }
 789
 790 void
 791 AudioStreamView::update_contents_height ()
 792 {
 793         StreamView::update_contents_height ();
 794
 795         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 796                 update_content_height (i->second);
 797         }
 798 }
 799
 800 void
 801 AudioStreamView::update_content_height (CrossfadeView* cv)
 802 {
 803         if (_layer_display == Overlaid) {
 804
 805                 cv->set_y (0);
 806                 cv->set_height (height);
 807
 808         } else {
 809
 810                 layer_t const inl = cv->crossfade->in()->layer ();
 811                 layer_t const outl = cv->crossfade->out()->layer ();
 812
 813                 layer_t const high = max (inl, outl);
 814                 layer_t const low = min (inl, outl);
 815
 816                 const double h = child_height ();
 817
 818                 cv->set_y ((_layers - high - 1) * h);
 819                 cv->set_height ((high - low + 1) * h);
 820
 821         }
 822 }
 823
 824 void
 825 AudioStreamView::parameter_changed (string const & p)
 826 {
 827         if (p == "show-waveforms") {
 828                 set_show_waveforms (Config->get_show_waveforms ());
 829         } else if (p == "waveform-scale") {
 830                 set_waveform_scale (Config->get_waveform_scale ());
 831         } else if (p == "waveform-shape") {
 832                 set_waveform_shape (Config->get_waveform_shape ());
 833         }
 834 }
 835
 836 void
 837 AudioStreamView::horizontal_position_changed ()
 838 {
 839         /* we only `draw' the bit of the curve that is visible, so we need to update here */
 840
 841         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 842                 i->second->horizontal_position_changed ();
 843         }
 844 }
 845