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         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
  74                 delete xi->second;
  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 |
 128                                                         TimeAxisViewItem::HideFrameRight |
 129                                                         TimeAxisViewItem::HideFrameLeft |
 130                                                         TimeAxisViewItem::HideFrameTB));
 131                 } else {
 132                         region_view = new AudioRegionView (_canvas_group, _trackview, region,
 133                                         _samples_per_unit, region_color);
 134                 }
 135                 break;
 136         case Destructive:
 137                 region_view = new TapeAudioRegionView (_canvas_group, _trackview, region,
 138                                 _samples_per_unit, region_color);
 139                 break;
 140         default:
 141                 fatal << string_compose (_("programming error: %1"), "illegal track mode in ::add_region_view_internal") << endmsg;
 142                 /*NOTREACHED*/
 143
 144         }
 145
 146         region_view->init (region_color, wait_for_waves);
 147         region_view->set_amplitude_above_axis(_amplitude_above_axis);
 148         region_view->set_height (child_height ());
 149
 150         /* if its the special single-sample length that we use for rec-regions, make it
 151            insensitive to events
 152         */
 153
 154         if (region->length() == 1) {
 155                 region_view->set_sensitive (false);
 156         }
 157
 158         region_view->set_waveform_scale (Config->get_waveform_scale ());
 159         region_view->set_waveform_shape (Config->get_waveform_shape ());
 160         region_view->set_waveform_visible (Config->get_show_waveforms ());
 161
 162         return region_view;
 163 }
 164
 165 RegionView*
 166 AudioStreamView::add_region_view_internal (boost::shared_ptr<Region> r, bool wait_for_waves, bool recording)
 167 {
 168         RegionView *region_view = create_region_view (r, wait_for_waves, recording);
 169
 170         if (region_view == 0) {
 171                 return 0;
 172         }
 173
 174 //      if(!recording){
 175 //              for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 176 //                      if ((*i)->region() == r) {
 177 //                              cerr << "audio_streamview in add_region_view_internal region found" << endl;
 178                                 /* great. we already have a AudioRegionView for this Region. use it again. */
 179
 180 //                              (*i)->set_valid (true);
 181
 182                                 // this might not be necessary
 183 //                              AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 184
 185 //                              if (arv) {
 186 //                                      arv->set_waveform_scale (_waveform_scale);
 187 //                                      arv->set_waveform_shape (_waveform_shape);
 188 //                              }
 189
 190 //                              return NULL;
 191 //                      }
 192 //              }
 193 //      }
 194
 195         region_views.push_front (region_view);
 196
 197         if (_trackview.editor().internal_editing()) {
 198                 region_view->hide_rect ();
 199         } else {
 200                 region_view->show_rect ();
 201         }
 202
 203         /* catch region going away */
 204
 205         r->DropReferences.connect (*this, invalidator (*this), boost::bind (&AudioStreamView::remove_region_view, this, boost::weak_ptr<Region> (r)), gui_context());
 206
 207         RegionViewAdded (region_view);
 208
 209         return region_view;
 210 }
 211
 212 void
 213 AudioStreamView::remove_region_view (boost::weak_ptr<Region> weak_r)
 214 {
 215         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_region_view, weak_r);
 216
 217         boost::shared_ptr<Region> r (weak_r.lock());
 218
 219         if (!r) {
 220                 return;
 221         }
 222
 223         if (!_trackview.session()->deletion_in_progress()) {
 224
 225                 for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 226                         CrossfadeViewList::iterator tmp;
 227
 228                         tmp = i;
 229                         ++tmp;
 230
 231                         boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
 232                         if (ar && i->second->crossfade->involves (ar)) {
 233                                 delete i->second;
 234                                 crossfade_views.erase (i);
 235                         }
 236
 237                         i = tmp;
 238                 }
 239         }
 240
 241         StreamView::remove_region_view(r);
 242 }
 243
 244 void
 245 AudioStreamView::undisplay_track ()
 246 {
 247         StreamView::undisplay_track ();
 248
 249         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 250                 delete i->second;
 251         }
 252
 253         crossfade_views.clear ();
 254 }
 255
 256 void
 257 AudioStreamView::playlist_layered (boost::weak_ptr<Track> wtr)
 258 {
 259         boost::shared_ptr<Track> tr (wtr.lock());
 260
 261         if (!tr) {
 262                 return;
 263         }
 264
 265         StreamView::playlist_layered (wtr);
 266
 267         /* make sure xfades are on top and all the regionviews are stacked correctly. */
 268
 269         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 270                 i->second->get_canvas_group()->raise_to_top();
 271         }
 272 }
 273
 274 void
 275 AudioStreamView::playlist_switched (boost::weak_ptr<Track> wtr)
 276 {
 277         boost::shared_ptr<Track> tr (wtr.lock());
 278
 279         if (!tr) {
 280                 return;
 281         }
 282
 283         playlist_connections.drop_connections ();
 284
 285         StreamView::playlist_switched (tr);
 286
 287         boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist> (tr->playlist());
 288
 289         if (apl) {
 290                 apl->NewCrossfade.connect (playlist_connections, invalidator (*this), ui_bind (&AudioStreamView::add_crossfade, this, _1), gui_context());
 291         }
 292 }
 293
 294 void
 295 AudioStreamView::add_crossfade (boost::weak_ptr<Crossfade> wc)
 296 {
 297         boost::shared_ptr<Crossfade> crossfade (wc.lock());
 298
 299         if (!crossfade) {
 300                 return;
 301         }
 302
 303         AudioRegionView* lview = 0;
 304         AudioRegionView* rview = 0;
 305
 306         /* first see if we already have a CrossfadeView for this Crossfade */
 307
 308         CrossfadeViewList::iterator i = crossfade_views.find (crossfade);
 309         if (i != crossfade_views.end()) {
 310                 if (!crossfades_visible) {
 311                         i->second->hide();
 312                 } else {
 313                         i->second->show ();
 314                 }
 315                 i->second->set_valid (true);
 316                 return;
 317         }
 318
 319         /* create a new one */
 320
 321         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 322                 AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
 323
 324                 if (!lview && arv && (arv->region() == crossfade->out())) {
 325                         lview = arv;
 326                 }
 327                 if (!rview && arv && (arv->region() == crossfade->in())) {
 328                         rview = arv;
 329                 }
 330         }
 331
 332         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display (),
 333                                                _trackview,
 334                                                 crossfade,
 335                                                _samples_per_unit,
 336                                                region_color,
 337                                                *lview, *rview);
 338         cv->set_valid (true);
 339         crossfade->Invalidated.connect (*this, invalidator (*this), ui_bind (&AudioStreamView::remove_crossfade, this, _1), gui_context());
 340         crossfade_views[cv->crossfade] = cv;
 341         if (!crossfades_visible) {
 342                 cv->hide ();
 343         }
 344
 345         update_content_height (cv);
 346 }
 347
 348 void
 349 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 350 {
 351         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_crossfade, r)
 352
 353         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 354
 355         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 356                 if (i->second->crossfade == xfade) {
 357                         delete i->second;
 358                         crossfade_views.erase (i);
 359                         break;
 360                 }
 361         }
 362 }
 363
 364 void
 365 AudioStreamView::redisplay_track ()
 366 {
 367         list<RegionView *>::iterator i;
 368         CrossfadeViewList::iterator xi, tmpx;
 369
 370         // Flag region views as invalid and disable drawing
 371         for (i = region_views.begin(); i != region_views.end(); ++i) {
 372                 (*i)->set_valid (false);
 373                 (*i)->enable_display (false);
 374         }
 375
 376         // Flag crossfade views as invalid
 377         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 378                 xi->second->set_valid (false);
 379                 if (xi->second->visible()) {
 380                         xi->second->show ();
 381                 }
 382         }
 383
 384         // Add and display region and crossfade views, and flag them as valid
 385
 386         if (_trackview.is_audio_track()) {
 387                 _trackview.track()->playlist()->foreach_region(
 388                         sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
 389                         );
 390
 391                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(
 392                                 _trackview.track()->playlist()
 393                         );
 394
 395                 if (apl) {
 396                         apl->foreach_crossfade (sigc::mem_fun (*this, &AudioStreamView::add_crossfade));
 397                 }
 398         }
 399
 400         // Remove invalid crossfade views
 401         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 402                 tmpx = xi;
 403                 tmpx++;
 404
 405                 if (!xi->second->valid()) {
 406                         delete xi->second;
 407                         crossfade_views.erase (xi);
 408                 }
 409
 410                 xi = tmpx;
 411         }
 412
 413         // Stack regions by layer, and remove invalid regions
 414         layer_regions();
 415 }
 416
 417 void
 418 AudioStreamView::set_show_waveforms (bool yn)
 419 {
 420         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 421                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 422                 if (arv) {
 423                         arv->set_waveform_visible (yn);
 424                 }
 425         }
 426 }
 427
 428 void
 429 AudioStreamView::set_waveform_shape (WaveformShape shape)
 430 {
 431         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 432                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 433                 if (arv)
 434                         arv->set_waveform_shape (shape);
 435         }
 436 }
 437
 438 void
 439 AudioStreamView::set_waveform_scale (WaveformScale scale)
 440 {
 441         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 442                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 443                 if (arv) {
 444                         arv->set_waveform_scale (scale);
 445                 }
 446         }
 447 }
 448
 449 void
 450 AudioStreamView::setup_rec_box ()
 451 {
 452         //cerr << _trackview.name() << " streamview SRB region_views.size() = " << region_views.size() << endl;
 453
 454         if (_trackview.session()->transport_rolling()) {
 455
 456                 // cerr << "\trolling\n";
 457
 458                 if (!rec_active &&
 459                     _trackview.session()->record_status() == Session::Recording &&
 460                     _trackview.track()->record_enabled()) {
 461                         if (_trackview.audio_track()->mode() == Normal && Config->get_show_waveforms_while_recording() && rec_regions.size() == rec_rects.size()) {
 462
 463                                 /* add a new region, but don't bother if they set show-waveforms-while-recording mid-record */
 464
 465                                 SourceList sources;
 466
 467                                 rec_data_ready_connections.drop_connections ();
 468                                 boost::shared_ptr<AudioTrack> tr = _trackview.audio_track();
 469
 470                                 for (uint32_t n = 0; n < tr->n_channels().n_audio(); ++n) {
 471                                         boost::shared_ptr<AudioFileSource> src = tr->write_source (n);
 472                                         if (src) {
 473                                                 sources.push_back (src);
 474                                                 src->PeakRangeReady.connect (rec_data_ready_connections,
 475                                                                              invalidator (*this),
 476                                                                              ui_bind (&AudioStreamView::rec_peak_range_ready, this, _1, _2, boost::weak_ptr<Source>(src)),
 477                                                                              gui_context());
 478                                         }
 479                                 }
 480
 481                                 // handle multi
 482
 483                                 framepos_t start = 0;
 484                                 if (rec_regions.size() > 0) {
 485                                         start = rec_regions.back().first->start()
 486                                                         + _trackview.track()->get_captured_frames(rec_regions.size()-1);
 487                                 }
 488
 489                                 PropertyList plist;
 490
 491                                 plist.add (Properties::start, start);
 492                                 plist.add (Properties::length, 1);
 493                                 plist.add (Properties::name, string());
 494                                 plist.add (Properties::layer, 0);
 495
 496                                 boost::shared_ptr<AudioRegion> region (
 497                                         boost::dynamic_pointer_cast<AudioRegion>(RegionFactory::create (sources, plist, false)));
 498
 499                                 assert(region);
 500                                 region->set_position (_trackview.session()->transport_frame());
 501                                 rec_regions.push_back (make_pair(region, (RegionView*) 0));
 502                         }
 503
 504                         /* start a new rec box */
 505
 506                         boost::shared_ptr<AudioTrack> at;
 507
 508                         at = _trackview.audio_track(); /* we know what it is already */
 509                         framepos_t const frame_pos = at->current_capture_start ();
 510                         gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
 511                         gdouble xend;
 512                         uint32_t fill_color;
 513
 514                         switch (_trackview.audio_track()->mode()) {
 515                         case Normal:
 516                         case NonLayered:
 517                                 xend = xstart;
 518                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 519                                 break;
 520
 521                         case Destructive:
 522                                 xend = xstart + 2;
 523                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 524                                 /* make the recording rect translucent to allow
 525                                    the user to see the peak data coming in, etc.
 526                                 */
 527                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 528                                 break;
 529                         }
 530
 531                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*_canvas_group);
 532                         rec_rect->property_x1() = xstart;
 533                         rec_rect->property_y1() = 1.0;
 534                         rec_rect->property_x2() = xend;
 535                         rec_rect->property_y2() = child_height ();
 536                         rec_rect->property_outline_what() = 0x0;
 537                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 538                         rec_rect->property_fill_color_rgba() = fill_color;
 539                         rec_rect->lower_to_bottom();
 540
 541                         RecBoxInfo recbox;
 542                         recbox.rectangle = rec_rect;
 543                         recbox.start = _trackview.session()->transport_frame();
 544                         recbox.length = 0;
 545
 546                         rec_rects.push_back (recbox);
 547
 548                         screen_update_connection.disconnect();
 549                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
 550                                         sigc::mem_fun (*this, &AudioStreamView::update_rec_box));
 551                         rec_updating = true;
 552                         rec_active = true;
 553
 554                 } else if (rec_active &&
 555                            (_trackview.session()->record_status() != Session::Recording ||
 556                             !_trackview.track()->record_enabled())) {
 557                         screen_update_connection.disconnect();
 558                         rec_active = false;
 559                         rec_updating = false;
 560                 }
 561
 562         } else {
 563
 564                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 565
 566                 if (!rec_rects.empty() || !rec_regions.empty()) {
 567
 568                         /* disconnect rapid update */
 569                         screen_update_connection.disconnect();
 570                         rec_data_ready_connections.drop_connections ();
 571                         rec_updating = false;
 572                         rec_active = false;
 573
 574                         /* remove temp regions */
 575
 576                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 577                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 578
 579                                 tmp = iter;
 580                                 ++tmp;
 581
 582                                 (*iter).first->drop_references ();
 583
 584                                 iter = tmp;
 585                         }
 586
 587                         rec_regions.clear();
 588
 589                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 590
 591                         /* transport stopped, clear boxes */
 592                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 593                                 RecBoxInfo &rect = (*iter);
 594                                 delete rect.rectangle;
 595                         }
 596
 597                         rec_rects.clear();
 598
 599                 }
 600         }
 601 }
 602
 603 void
 604 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 605 {
 606         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 607                 (i->second->*pmf) ();
 608         }
 609 }
 610
 611 void
 612 AudioStreamView::rec_peak_range_ready (framepos_t start, framecnt_t cnt, boost::weak_ptr<Source> weak_src)
 613 {
 614         ENSURE_GUI_THREAD (*this, &AudioStreamView::rec_peak_range_ready, start, cnt, weak_src)
 615
 616         boost::shared_ptr<Source> src (weak_src.lock());
 617
 618         if (!src) {
 619                 return;
 620         }
 621
 622         // this is called from the peak building thread
 623
 624         if (rec_data_ready_map.size() == 0 || start + cnt > last_rec_data_frame) {
 625                 last_rec_data_frame = start + cnt;
 626         }
 627
 628         rec_data_ready_map[src] = true;
 629
 630         if (rec_data_ready_map.size() == _trackview.track()->n_channels().n_audio()) {
 631                 update_rec_regions (start, cnt);
 632                 rec_data_ready_map.clear();
 633         }
 634 }
 635
 636 void
 637 AudioStreamView::update_rec_regions (framepos_t start, framecnt_t cnt)
 638 {
 639         if (!Config->get_show_waveforms_while_recording ()) {
 640                 return;
 641         }
 642
 643         uint32_t n = 0;
 644
 645         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 646
 647                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp = iter;
 648                 ++tmp;
 649
 650                 assert (n < rec_rects.size());
 651
 652                 if (!canvas_item_visible (rec_rects[n].rectangle)) {
 653                         /* rect already hidden, this region is done */
 654                         iter = tmp;
 655                         continue;
 656                 }
 657
 658                 boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 659
 660                 if (!region) {
 661                         iter = tmp;
 662                         continue;
 663                 }
 664
 665                 framecnt_t origlen = region->length();
 666
 667                 if (region == rec_regions.back().first && rec_active) {
 668
 669                         if (last_rec_data_frame > region->start()) {
 670
 671                                 framecnt_t nlen = last_rec_data_frame - region->start();
 672
 673                                 if (nlen != region->length()) {
 674
 675                                         region->suspend_property_changes ();
 676                                         region->set_position (_trackview.track()->get_capture_start_frame(n));
 677                                         region->set_length (nlen);
 678                                         region->resume_property_changes ();
 679
 680                                         if (origlen == 1) {
 681                                                 /* our special initial length */
 682                                                 add_region_view_internal (region, false, true);
 683                                                 setup_new_rec_layer_time (region);
 684                                         }
 685
 686                                         check_record_layers (region, (region->position() - region->start() + start + cnt));
 687
 688                                         /* also update rect */
 689                                         ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 690                                         gdouble xend = _trackview.editor().frame_to_pixel (region->position() + region->length());
 691                                         rect->property_x2() = xend;
 692                                 }
 693
 694                         } else {
 695
 696                                 framecnt_t nlen = _trackview.track()->get_captured_frames(n);
 697
 698                                 if (nlen != region->length()) {
 699
 700                                         if (region->source_length(0) >= region->start() + nlen) {
 701
 702                                                 region->suspend_property_changes ();
 703                                                 region->set_position (_trackview.track()->get_capture_start_frame(n));
 704                                                 region->set_length (nlen);
 705                                                 region->resume_property_changes ();
 706
 707                                                 if (origlen == 1) {
 708                                                         /* our special initial length */
 709                                                         add_region_view_internal (region, false, true);
 710                                                 }
 711
 712                                                 /* also hide rect */
 713                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 714                                                 rect->hide();
 715
 716                                         }
 717                                 }
 718                         }
 719                 }
 720
 721                 iter = tmp;
 722         }
 723 }
 724
 725 void
 726 AudioStreamView::show_all_fades ()
 727 {
 728         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 729                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 730                 if (arv) {
 731                         arv->set_fade_visibility (true);
 732                 }
 733         }
 734 }
 735
 736 void
 737 AudioStreamView::hide_all_fades ()
 738 {
 739         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 740                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 741                 if (arv) {
 742                         arv->set_fade_visibility (false);
 743                 }
 744         }
 745 }
 746
 747 void
 748 AudioStreamView::show_all_xfades ()
 749 {
 750         foreach_crossfadeview (&CrossfadeView::show);
 751         crossfades_visible = true;
 752 }
 753
 754 void
 755 AudioStreamView::hide_all_xfades ()
 756 {
 757         foreach_crossfadeview (&CrossfadeView::hide);
 758         crossfades_visible = false;
 759 }
 760
 761 void
 762 AudioStreamView::hide_xfades_involving (AudioRegionView& rv)
 763 {
 764         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 765                 if (i->second->crossfade->involves (rv.audio_region())) {
 766                         i->second->fake_hide ();
 767                 }
 768         }
 769 }
 770
 771 void
 772 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 773 {
 774         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 775                 if (i->second->crossfade->involves (rv.audio_region()) && i->second->visible()) {
 776                         i->second->show ();
 777                 }
 778         }
 779 }
 780
 781 void
 782 AudioStreamView::color_handler ()
 783 {
 784         //case cAudioTrackBase:
 785         if (_trackview.is_track()) {
 786                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 787         }
 788
 789         //case cAudioBusBase:
 790         if (!_trackview.is_track()) {
 791                 if (Profile->get_sae() && _trackview.route()->is_master()) {
 792                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioMasterBusBase.get();
 793                 } else {
 794                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 795                 }
 796         }
 797 }
 798
 799 void
 800 AudioStreamView::update_contents_height ()
 801 {
 802         StreamView::update_contents_height ();
 803
 804         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 805                 update_content_height (i->second);
 806         }
 807 }
 808
 809 void
 810 AudioStreamView::update_content_height (CrossfadeView* cv)
 811 {
 812         switch (_layer_display) {
 813         case Overlaid:
 814                 cv->set_y (0);
 815                 cv->set_heights (height, height);
 816                 break;
 817
 818         case Stacked:
 819         case Expanded:
 820                 layer_t const inl = cv->crossfade->in()->layer ();
 821                 layer_t const outl = cv->crossfade->out()->layer ();
 822
 823                 layer_t const high = max (inl, outl);
 824                 layer_t const low = min (inl, outl);
 825
 826                 const double h = child_height ();
 827
 828                 if (_layer_display == Stacked) {
 829                         cv->set_y ((_layers - high - 1) * h);
 830                         cv->set_heights ((high - low + 1) * h, h);
 831                 } else {
 832                         cv->set_y (((_layers - high) * 2 - 1) * h);
 833                         cv->set_heights (((high - low) * 2 + 1) * h, h);
 834                 }
 835         }
 836 }
 837
 838 void
 839 AudioStreamView::parameter_changed (string const & p)
 840 {
 841         if (p == "show-waveforms") {
 842                 set_show_waveforms (Config->get_show_waveforms ());
 843         } else if (p == "waveform-scale") {
 844                 set_waveform_scale (Config->get_waveform_scale ());
 845         } else if (p == "waveform-shape") {
 846                 set_waveform_shape (Config->get_waveform_shape ());
 847         }
 848 }
 849
 850 void
 851 AudioStreamView::horizontal_position_changed ()
 852 {
 853         /* we only `draw' the bit of the curve that is visible, so we need to update here */
 854
 855         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 856                 i->second->horizontal_position_changed ();
 857         }
 858 }
 859