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