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->DropReferences.connect (*this, invalidator (*this), ui_bind (&AudioStreamView::remove_crossfade, this, crossfade), gui_context());
 341         crossfade_views[cv->crossfade] = cv;
 342         if (!crossfades_visible) {
 343                 cv->hide ();
 344         }
 345
 346         update_content_height (cv);
 347 }
 348
 349 void
 350 AudioStreamView::remove_crossfade (boost::shared_ptr<Region> r)
 351 {
 352         ENSURE_GUI_THREAD (*this, &AudioStreamView::remove_crossfade, r)
 353
 354         boost::shared_ptr<Crossfade> xfade = boost::dynamic_pointer_cast<Crossfade> (r);
 355
 356         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 357                 if (i->second->crossfade == xfade) {
 358                         delete i->second;
 359                         crossfade_views.erase (i);
 360                         break;
 361                 }
 362         }
 363 }
 364
 365 void
 366 AudioStreamView::redisplay_track ()
 367 {
 368         list<RegionView *>::iterator i;
 369         CrossfadeViewList::iterator xi, tmpx;
 370
 371         // Flag region views as invalid and disable drawing
 372         for (i = region_views.begin(); i != region_views.end(); ++i) {
 373                 (*i)->set_valid (false);
 374                 (*i)->enable_display (false);
 375         }
 376
 377         // Flag crossfade views as invalid
 378         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 379                 xi->second->set_valid (false);
 380                 if (xi->second->visible()) {
 381                         xi->second->show ();
 382                 }
 383         }
 384
 385         // Add and display region and crossfade views, and flag them as valid
 386
 387         if (_trackview.is_audio_track()) {
 388                 _trackview.track()->playlist()->foreach_region(
 389                         sigc::hide_return (sigc::mem_fun (*this, &StreamView::add_region_view))
 390                         );
 391
 392                 boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(
 393                                 _trackview.track()->playlist()
 394                         );
 395
 396                 if (apl) {
 397                         apl->foreach_crossfade (sigc::mem_fun (*this, &AudioStreamView::add_crossfade));
 398                 }
 399         }
 400
 401         // Remove invalid crossfade views
 402         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 403                 tmpx = xi;
 404                 tmpx++;
 405
 406                 if (!xi->second->valid()) {
 407                         delete xi->second;
 408                         crossfade_views.erase (xi);
 409                 }
 410
 411                 xi = tmpx;
 412         }
 413
 414         // Stack regions by layer, and remove invalid regions
 415         layer_regions();
 416 }
 417
 418 void
 419 AudioStreamView::set_show_waveforms (bool yn)
 420 {
 421         for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 422                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 423                 if (arv) {
 424                         arv->set_waveform_visible (yn);
 425                 }
 426         }
 427 }
 428
 429 void
 430 AudioStreamView::set_waveform_shape (WaveformShape shape)
 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_shape (shape);
 436         }
 437 }
 438
 439 void
 440 AudioStreamView::set_waveform_scale (WaveformScale scale)
 441 {
 442         for (RegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 443                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 444                 if (arv) {
 445                         arv->set_waveform_scale (scale);
 446                 }
 447         }
 448 }
 449
 450 void
 451 AudioStreamView::setup_rec_box ()
 452 {
 453         //cerr << _trackview.name() << " streamview SRB region_views.size() = " << region_views.size() << endl;
 454
 455         if (_trackview.session()->transport_rolling()) {
 456
 457                 // cerr << "\trolling\n";
 458
 459                 if (!rec_active &&
 460                     _trackview.session()->record_status() == Session::Recording &&
 461                     _trackview.track()->record_enabled()) {
 462                         if (_trackview.audio_track()->mode() == Normal && Config->get_show_waveforms_while_recording() && rec_regions.size() == rec_rects.size()) {
 463
 464                                 /* add a new region, but don't bother if they set show-waveforms-while-recording mid-record */
 465
 466                                 SourceList sources;
 467
 468                                 rec_data_ready_connections.drop_connections ();
 469                                 boost::shared_ptr<AudioTrack> tr = _trackview.audio_track();
 470
 471                                 for (uint32_t n = 0; n < tr->n_channels().n_audio(); ++n) {
 472                                         boost::shared_ptr<AudioFileSource> src = tr->write_source (n);
 473                                         if (src) {
 474                                                 sources.push_back (src);
 475                                                 src->PeakRangeReady.connect (rec_data_ready_connections,
 476                                                                              invalidator (*this),
 477                                                                              ui_bind (&AudioStreamView::rec_peak_range_ready, this, _1, _2, boost::weak_ptr<Source>(src)),
 478                                                                              gui_context());
 479                                         }
 480                                 }
 481
 482                                 // handle multi
 483
 484                                 framepos_t start = 0;
 485                                 if (rec_regions.size() > 0) {
 486                                         start = rec_regions.back().first->start()
 487                                                         + _trackview.track()->get_captured_frames(rec_regions.size()-1);
 488                                 }
 489
 490                                 PropertyList plist;
 491
 492                                 plist.add (Properties::start, start);
 493                                 plist.add (Properties::length, 1);
 494                                 plist.add (Properties::name, string());
 495                                 plist.add (Properties::layer, 0);
 496
 497                                 boost::shared_ptr<AudioRegion> region (
 498                                         boost::dynamic_pointer_cast<AudioRegion>(RegionFactory::create (sources, plist, false)));
 499
 500                                 assert(region);
 501                                 region->set_position (_trackview.session()->transport_frame());
 502                                 rec_regions.push_back (make_pair(region, (RegionView*) 0));
 503                         }
 504
 505                         /* start a new rec box */
 506
 507                         boost::shared_ptr<AudioTrack> at;
 508
 509                         at = _trackview.audio_track(); /* we know what it is already */
 510                         framepos_t const frame_pos = at->current_capture_start ();
 511                         gdouble xstart = _trackview.editor().frame_to_pixel (frame_pos);
 512                         gdouble xend;
 513                         uint32_t fill_color;
 514
 515                         switch (_trackview.audio_track()->mode()) {
 516                         case Normal:
 517                         case NonLayered:
 518                                 xend = xstart;
 519                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 520                                 break;
 521
 522                         case Destructive:
 523                                 xend = xstart + 2;
 524                                 fill_color = ARDOUR_UI::config()->canvasvar_RecordingRect.get();
 525                                 /* make the recording rect translucent to allow
 526                                    the user to see the peak data coming in, etc.
 527                                 */
 528                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 529                                 break;
 530                         }
 531
 532                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*_canvas_group);
 533                         rec_rect->property_x1() = xstart;
 534                         rec_rect->property_y1() = 1.0;
 535                         rec_rect->property_x2() = xend;
 536                         rec_rect->property_y2() = child_height ();
 537                         rec_rect->property_outline_what() = 0x0;
 538                         rec_rect->property_outline_color_rgba() = ARDOUR_UI::config()->canvasvar_TimeAxisFrame.get();
 539                         rec_rect->property_fill_color_rgba() = fill_color;
 540                         rec_rect->lower_to_bottom();
 541
 542                         RecBoxInfo recbox;
 543                         recbox.rectangle = rec_rect;
 544                         recbox.start = _trackview.session()->transport_frame();
 545                         recbox.length = 0;
 546
 547                         rec_rects.push_back (recbox);
 548
 549                         screen_update_connection.disconnect();
 550                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (
 551                                         sigc::mem_fun (*this, &AudioStreamView::update_rec_box));
 552                         rec_updating = true;
 553                         rec_active = true;
 554
 555                 } else if (rec_active &&
 556                            (_trackview.session()->record_status() != Session::Recording ||
 557                             !_trackview.track()->record_enabled())) {
 558                         screen_update_connection.disconnect();
 559                         rec_active = false;
 560                         rec_updating = false;
 561                 }
 562
 563         } else {
 564
 565                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 566
 567                 if (!rec_rects.empty() || !rec_regions.empty()) {
 568
 569                         /* disconnect rapid update */
 570                         screen_update_connection.disconnect();
 571                         rec_data_ready_connections.drop_connections ();
 572                         rec_updating = false;
 573                         rec_active = false;
 574
 575                         /* remove temp regions */
 576
 577                         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); ) {
 578                                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp;
 579
 580                                 tmp = iter;
 581                                 ++tmp;
 582
 583                                 (*iter).first->drop_references ();
 584
 585                                 iter = tmp;
 586                         }
 587
 588                         rec_regions.clear();
 589
 590                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 591
 592                         /* transport stopped, clear boxes */
 593                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 594                                 RecBoxInfo &rect = (*iter);
 595                                 delete rect.rectangle;
 596                         }
 597
 598                         rec_rects.clear();
 599
 600                 }
 601         }
 602 }
 603
 604 void
 605 AudioStreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 606 {
 607         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 608                 (i->second->*pmf) ();
 609         }
 610 }
 611
 612 void
 613 AudioStreamView::rec_peak_range_ready (framepos_t start, framecnt_t cnt, boost::weak_ptr<Source> weak_src)
 614 {
 615         ENSURE_GUI_THREAD (*this, &AudioStreamView::rec_peak_range_ready, start, cnt, weak_src)
 616
 617         boost::shared_ptr<Source> src (weak_src.lock());
 618
 619         if (!src) {
 620                 return;
 621         }
 622
 623         // this is called from the peak building thread
 624
 625         if (rec_data_ready_map.size() == 0 || start + cnt > last_rec_data_frame) {
 626                 last_rec_data_frame = start + cnt;
 627         }
 628
 629         rec_data_ready_map[src] = true;
 630
 631         if (rec_data_ready_map.size() == _trackview.track()->n_channels().n_audio()) {
 632                 update_rec_regions (start, cnt);
 633                 rec_data_ready_map.clear();
 634         }
 635 }
 636
 637 void
 638 AudioStreamView::update_rec_regions (framepos_t start, framecnt_t cnt)
 639 {
 640         if (!Config->get_show_waveforms_while_recording ()) {
 641                 return;
 642         }
 643
 644         uint32_t n = 0;
 645
 646         for (list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 647
 648                 list<pair<boost::shared_ptr<Region>,RegionView*> >::iterator tmp = iter;
 649                 ++tmp;
 650
 651                 assert (n < rec_rects.size());
 652
 653                 if (!canvas_item_visible (rec_rects[n].rectangle)) {
 654                         /* rect already hidden, this region is done */
 655                         iter = tmp;
 656                         continue;
 657                 }
 658
 659                 boost::shared_ptr<AudioRegion> region = boost::dynamic_pointer_cast<AudioRegion>(iter->first);
 660
 661                 if (!region) {
 662                         iter = tmp;
 663                         continue;
 664                 }
 665
 666                 framecnt_t origlen = region->length();
 667
 668                 if (region == rec_regions.back().first && rec_active) {
 669
 670                         if (last_rec_data_frame > region->start()) {
 671
 672                                 framecnt_t nlen = last_rec_data_frame - region->start();
 673
 674                                 if (nlen != region->length()) {
 675
 676                                         region->suspend_property_changes ();
 677                                         region->set_position (_trackview.track()->get_capture_start_frame(n));
 678                                         region->set_length (nlen);
 679                                         region->resume_property_changes ();
 680
 681                                         if (origlen == 1) {
 682                                                 /* our special initial length */
 683                                                 add_region_view_internal (region, false, true);
 684                                                 setup_new_rec_layer_time (region);
 685                                         }
 686
 687                                         check_record_layers (region, (region->position() - region->start() + start + cnt));
 688
 689                                         /* also update rect */
 690                                         ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 691                                         gdouble xend = _trackview.editor().frame_to_pixel (region->position() + region->length());
 692                                         rect->property_x2() = xend;
 693                                 }
 694
 695                         } else {
 696
 697                                 framecnt_t nlen = _trackview.track()->get_captured_frames(n);
 698
 699                                 if (nlen != region->length()) {
 700
 701                                         if (region->source_length(0) >= region->start() + nlen) {
 702
 703                                                 region->suspend_property_changes ();
 704                                                 region->set_position (_trackview.track()->get_capture_start_frame(n));
 705                                                 region->set_length (nlen);
 706                                                 region->resume_property_changes ();
 707
 708                                                 if (origlen == 1) {
 709                                                         /* our special initial length */
 710                                                         add_region_view_internal (region, false, true);
 711                                                 }
 712
 713                                                 /* also hide rect */
 714                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 715                                                 rect->hide();
 716
 717                                         }
 718                                 }
 719                         }
 720                 }
 721
 722                 iter = tmp;
 723         }
 724 }
 725
 726 void
 727 AudioStreamView::show_all_fades ()
 728 {
 729         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 730                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 731                 if (arv) {
 732                         arv->set_fade_visibility (true);
 733                 }
 734         }
 735 }
 736
 737 void
 738 AudioStreamView::hide_all_fades ()
 739 {
 740         for (list<RegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 741                 AudioRegionView* const arv = dynamic_cast<AudioRegionView*>(*i);
 742                 if (arv) {
 743                         arv->set_fade_visibility (false);
 744                 }
 745         }
 746 }
 747
 748 void
 749 AudioStreamView::show_all_xfades ()
 750 {
 751         foreach_crossfadeview (&CrossfadeView::show);
 752         crossfades_visible = true;
 753 }
 754
 755 void
 756 AudioStreamView::hide_all_xfades ()
 757 {
 758         foreach_crossfadeview (&CrossfadeView::hide);
 759         crossfades_visible = false;
 760 }
 761
 762 void
 763 AudioStreamView::hide_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())) {
 767                         i->second->fake_hide ();
 768                 }
 769         }
 770 }
 771
 772 void
 773 AudioStreamView::reveal_xfades_involving (AudioRegionView& rv)
 774 {
 775         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 776                 if (i->second->crossfade->involves (rv.audio_region()) && i->second->visible()) {
 777                         i->second->show ();
 778                 }
 779         }
 780 }
 781
 782 void
 783 AudioStreamView::color_handler ()
 784 {
 785         //case cAudioTrackBase:
 786         if (_trackview.is_track()) {
 787                 canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioTrackBase.get();
 788         }
 789
 790         //case cAudioBusBase:
 791         if (!_trackview.is_track()) {
 792                 if (Profile->get_sae() && _trackview.route()->is_master()) {
 793                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioMasterBusBase.get();
 794                 } else {
 795                         canvas_rect->property_fill_color_rgba() = ARDOUR_UI::config()->canvasvar_AudioBusBase.get();
 796                 }
 797         }
 798 }
 799
 800 void
 801 AudioStreamView::update_contents_height ()
 802 {
 803         StreamView::update_contents_height ();
 804
 805         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 806                 update_content_height (i->second);
 807         }
 808 }
 809
 810 void
 811 AudioStreamView::update_content_height (CrossfadeView* cv)
 812 {
 813         if (_layer_display == Overlaid) {
 814
 815                 cv->set_y (0);
 816                 cv->set_height (height);
 817
 818         } else {
 819
 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                 cv->set_y ((_layers - high - 1) * h);
 829                 cv->set_height ((high - low + 1) * h);
 830
 831         }
 832 }
 833
 834 void
 835 AudioStreamView::parameter_changed (string const & p)
 836 {
 837         if (p == "show-waveforms") {
 838                 set_show_waveforms (Config->get_show_waveforms ());
 839         } else if (p == "waveform-scale") {
 840                 set_waveform_scale (Config->get_waveform_scale ());
 841         } else if (p == "waveform-shape") {
 842                 set_waveform_shape (Config->get_waveform_shape ());
 843         }
 844 }
 845
 846 void
 847 AudioStreamView::horizontal_position_changed ()
 848 {
 849         /* we only `draw' the bit of the curve that is visible, so we need to update here */
 850
 851         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 852                 i->second->horizontal_position_changed ();
 853         }
 854 }
 855