gtk2_ardour/streamview.cc

   1 #include <cmath>
   2
   3 #include <gtkmm.h>
   4
   5 #include <gtkmm2ext/gtk_ui.h>
   6
   7 #include <ardour/audioplaylist.h>
   8 #include <ardour/audioregion.h>
   9 #include <ardour/diskstream.h>
  10 #include <ardour/audio_track.h>
  11 #include <ardour/playlist_templates.h>
  12 #include <ardour/source.h>
  13
  14 #include "streamview.h"
  15 #include "regionview.h"
  16 #include "taperegionview.h"
  17 #include "audio_time_axis.h"
  18 #include "canvas-waveview.h"
  19 #include "canvas-simplerect.h"
  20 #include "region_selection.h"
  21 #include "selection.h"
  22 #include "public_editor.h"
  23 #include "ardour_ui.h"
  24 #include "crossfade_view.h"
  25 #include "rgb_macros.h"
  26 #include "gui_thread.h"
  27 #include "utils.h"
  28 #include "color.h"
  29
  30 using namespace ARDOUR;
  31 using namespace Editing;
  32
  33 StreamView::StreamView (AudioTimeAxisView& tv)
  34         : _trackview (tv)
  35 {
  36         region_color = _trackview.color();
  37         crossfades_visible = true;
  38
  39         if (tv.is_audio_track()) {
  40                 /* TRACK */
  41                 //stream_base_color = RGBA_TO_UINT (222,223,218,255);
  42                 stream_base_color = color_map[cAudioTrackBase];
  43         } else {
  44                 /* BUS */
  45                 //stream_base_color = RGBA_TO_UINT (230,226,238,255);
  46                 stream_base_color = color_map[cAudioBusBase];
  47         }
  48
  49         /* set_position() will position the group */
  50
  51         canvas_group = new ArdourCanvas::Group(*_trackview.canvas_display);
  52
  53         canvas_rect = new ArdourCanvas::SimpleRect (*canvas_group);
  54         canvas_rect->property_x1() = 0.0;
  55         canvas_rect->property_y1() = 0.0;
  56         canvas_rect->property_x2() = 1000000.0;
  57         canvas_rect->property_y2() = (double) tv.height;
  58         canvas_rect->property_outline_color_rgba() = color_map[cAudioTrackOutline];
  59         canvas_rect->property_outline_what() = (guint32) (0x1|0x2|0x8);  // outline ends and bottom
  60         canvas_rect->property_fill_color_rgba() = stream_base_color;
  61
  62         canvas_rect->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
  63
  64         _samples_per_unit = _trackview.editor.get_current_zoom();
  65         _amplitude_above_axis = 1.0;
  66
  67         if (_trackview.is_audio_track()) {
  68                 _trackview.audio_track()->diskstream_changed.connect (mem_fun (*this, &StreamView::diskstream_changed));
  69                 _trackview.session().TransportStateChange.connect (mem_fun (*this, &StreamView::transport_changed));
  70                 _trackview.get_diskstream()->record_enable_changed.connect (mem_fun (*this, &StreamView::rec_enable_changed));
  71                 _trackview.session().RecordStateChanged.connect (mem_fun (*this, &StreamView::sess_rec_enable_changed));
  72         }
  73
  74         rec_updating = false;
  75         rec_active = false;
  76         use_rec_regions = tv.editor.show_waveforms_recording ();
  77         last_rec_peak_frame = 0;
  78
  79         ColorChanged.connect (mem_fun (*this, &StreamView::color_handler));
  80 }
  81
  82 StreamView::~StreamView ()
  83 {
  84         undisplay_diskstream ();
  85         delete canvas_group;
  86 }
  87
  88 void
  89 StreamView::attach ()
  90 {
  91         if (_trackview.is_audio_track()) {
  92                 display_diskstream (_trackview.get_diskstream());
  93         }
  94 }
  95
  96 int
  97 StreamView::set_position (gdouble x, gdouble y)
  98
  99 {
 100         canvas_group->property_x() = x;
 101         canvas_group->property_y() = y;
 102         return 0;
 103 }
 104
 105 int
 106 StreamView::set_height (gdouble h)
 107 {
 108         /* limit the values to something sane-ish */
 109
 110         if (h < 10.0 || h > 1000.0) {
 111                 return -1;
 112         }
 113
 114         canvas_rect->property_y2() = h;
 115
 116         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 117                 (*i)->set_height (h);
 118         }
 119
 120         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 121                 (*i)->set_height (h);
 122         }
 123
 124         for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
 125                 RecBoxInfo &recbox = (*i);
 126                 recbox.rectangle->property_y2() = h - 1.0;
 127         }
 128
 129         return 0;
 130 }
 131
 132 int
 133 StreamView::set_samples_per_unit (gdouble spp)
 134 {
 135         AudioRegionViewList::iterator i;
 136
 137         if (spp < 1.0) {
 138                 return -1;
 139         }
 140
 141         _samples_per_unit = spp;
 142
 143         for (i = region_views.begin(); i != region_views.end(); ++i) {
 144                 (*i)->set_samples_per_unit (spp);
 145         }
 146
 147         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 148                 (*xi)->set_samples_per_unit (spp);
 149         }
 150
 151         for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
 152                 RecBoxInfo &recbox = (*xi);
 153
 154                 gdouble xstart = _trackview.editor.frame_to_pixel ( recbox.start );
 155                 gdouble xend = _trackview.editor.frame_to_pixel ( recbox.start + recbox.length );
 156
 157                 recbox.rectangle->property_x1() = xstart;
 158                 recbox.rectangle->property_x2() = xend;
 159         }
 160
 161         return 0;
 162 }
 163
 164 int
 165 StreamView::set_amplitude_above_axis (gdouble app)
 166
 167 {
 168         AudioRegionViewList::iterator i;
 169
 170         if (app < 1.0) {
 171                 return -1;
 172         }
 173
 174         _amplitude_above_axis = app;
 175
 176         for (i = region_views.begin(); i != region_views.end(); ++i) {
 177                 (*i)->set_amplitude_above_axis (app);
 178         }
 179
 180         return 0;
 181 }
 182
 183 void
 184 StreamView::add_region_view (Region *r)
 185 {
 186         add_region_view_internal (r, true);
 187 }
 188
 189 void
 190 StreamView::add_region_view_internal (Region *r, bool wait_for_waves)
 191 {
 192         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::add_region_view), r));
 193
 194         AudioRegion* region = dynamic_cast<AudioRegion*> (r);
 195
 196         if (region == 0) {
 197                 return;
 198         }
 199
 200         AudioRegionView *region_view;
 201         list<AudioRegionView *>::iterator i;
 202
 203         for (i = region_views.begin(); i != region_views.end(); ++i) {
 204                 if (&(*i)->region == region) {
 205
 206                         /* great. we already have a AudioRegionView for this Region. use it again.
 207                          */
 208
 209                         (*i)->set_valid (true);
 210                         return;
 211                 }
 212         }
 213
 214         switch (_trackview.audio_track()->mode()) {
 215         case Normal:
 216                 region_view = new AudioRegionView (canvas_group, _trackview, *region,
 217                                                    _samples_per_unit, region_color);
 218                 break;
 219         case Destructive:
 220                 region_view = new TapeAudioRegionView (canvas_group, _trackview, *region,
 221                                                        _samples_per_unit, region_color);
 222                 break;
 223         }
 224
 225         region_view->init (_amplitude_above_axis, region_color, wait_for_waves);
 226         region_views.push_front (region_view);
 227
 228         /* follow global waveform setting */
 229
 230         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 231
 232         /* catch regionview going away */
 233
 234         region->GoingAway.connect (mem_fun (*this, &StreamView::remove_region_view));
 235
 236         AudioRegionViewAdded (region_view);
 237 }
 238
 239 void
 240 StreamView::remove_region_view (Region *r)
 241 {
 242         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::remove_region_view), r));
 243
 244         AudioRegion* ar = dynamic_cast<AudioRegion*> (r);
 245
 246         if (ar == 0) {
 247                 return;
 248         }
 249
 250         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 251                 if (&((*i)->region) == ar) {
 252                         delete *i;
 253                         region_views.erase (i);
 254                         break;
 255                 }
 256         }
 257
 258         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 259                 list<CrossfadeView*>::iterator tmp;
 260
 261                 tmp = i;
 262                 ++tmp;
 263
 264                 if ((*i)->crossfade.involves (*ar)) {
 265                         delete *i;
 266                         crossfade_views.erase (i);
 267                 }
 268
 269                 i = tmp;
 270         }
 271 }
 272
 273 void
 274 StreamView::remove_rec_region (Region *r)
 275 {
 276         ENSURE_GUI_THREAD(bind (mem_fun (*this, &StreamView::remove_rec_region), r));
 277
 278         if (!Gtkmm2ext::UI::instance()->caller_is_gui_thread()) {
 279                 fatal << "region deleted from non-GUI thread!" << endmsg;
 280                 /*NOTREACHED*/
 281         }
 282
 283         AudioRegion* ar = dynamic_cast<AudioRegion*> (r);
 284
 285         if (ar == 0) {
 286                 return;
 287         }
 288
 289         for (list<AudioRegion *>::iterator i = rec_regions.begin(); i != rec_regions.end(); ++i) {
 290                 if (*i == ar) {
 291                         rec_regions.erase (i);
 292                         break;
 293                 }
 294         }
 295 }
 296
 297 void
 298 StreamView::undisplay_diskstream ()
 299 {
 300
 301         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 302                 delete *i;
 303         }
 304
 305         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 306                 delete *i;
 307         }
 308
 309         region_views.clear();
 310         crossfade_views.clear ();
 311 }
 312
 313 void
 314 StreamView::display_diskstream (DiskStream *ds)
 315 {
 316         playlist_change_connection.disconnect();
 317         playlist_changed (ds);
 318         playlist_change_connection = ds->PlaylistChanged.connect (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 319 }
 320
 321 void
 322 StreamView::playlist_modified ()
 323 {
 324         ENSURE_GUI_THREAD (mem_fun (*this, &StreamView::playlist_modified));
 325
 326         /* if the playlist is modified, make sure xfades are on top and all the regionviews are stacked
 327            correctly.
 328         */
 329
 330         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 331                 region_layered (*i);
 332         }
 333
 334         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 335                 (*i)->get_canvas_group()->raise_to_top();
 336         }
 337 }
 338
 339 void
 340 StreamView::playlist_changed (DiskStream *ds)
 341 {
 342         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 343
 344         /* disconnect from old playlist */
 345
 346         for (vector<sigc::connection>::iterator i = playlist_connections.begin(); i != playlist_connections.end(); ++i) {
 347                 (*i).disconnect();
 348         }
 349
 350         playlist_connections.clear();
 351         undisplay_diskstream ();
 352
 353         /* draw it */
 354
 355         redisplay_diskstream ();
 356
 357         /* catch changes */
 358
 359         playlist_connections.push_back (ds->playlist()->RegionAdded.connect (mem_fun (*this, &StreamView::add_region_view)));
 360         playlist_connections.push_back (ds->playlist()->RegionRemoved.connect (mem_fun (*this, &StreamView::remove_region_view)));
 361         playlist_connections.push_back (ds->playlist()->StateChanged.connect (mem_fun (*this, &StreamView::playlist_state_changed)));
 362         playlist_connections.push_back (ds->playlist()->Modified.connect (mem_fun (*this, &StreamView::playlist_modified)));
 363         playlist_connections.push_back (ds->playlist()->NewCrossfade.connect (mem_fun (*this, &StreamView::add_crossfade)));
 364 }
 365
 366 void
 367 StreamView::add_crossfade (Crossfade *crossfade)
 368 {
 369         AudioRegionView* lview = 0;
 370         AudioRegionView* rview = 0;
 371
 372         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::add_crossfade), crossfade));
 373
 374         /* first see if we already have a CrossfadeView for this Crossfade */
 375
 376         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 377                 if (&(*i)->crossfade == crossfade) {
 378                         if (!crossfades_visible) {
 379                                 (*i)->hide();
 380                         } else {
 381                                 (*i)->show ();
 382                         }
 383                         (*i)->set_valid (true);
 384                         return;
 385                 }
 386         }
 387
 388         /* create a new one */
 389
 390         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 391                 if (!lview && &((*i)->region) == &crossfade->out()) {
 392                         lview = *i;
 393                 }
 394                 if (!rview && &((*i)->region) == &crossfade->in()) {
 395                         rview = *i;
 396                 }
 397         }
 398
 399         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 400                                                _trackview,
 401                                                *crossfade,
 402                                                _samples_per_unit,
 403                                                region_color,
 404                                                *lview, *rview);
 405
 406         crossfade->Invalidated.connect (mem_fun (*this, &StreamView::remove_crossfade));
 407         crossfade_views.push_back (cv);
 408
 409         if (!crossfades_visible) {
 410                 cv->hide ();
 411         }
 412 }
 413
 414 void
 415 StreamView::remove_crossfade (Crossfade *xfade)
 416 {
 417         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::remove_crossfade), xfade));
 418
 419         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 420                 if (&(*i)->crossfade == xfade) {
 421                         delete *i;
 422                         crossfade_views.erase (i);
 423                         break;
 424                 }
 425         }
 426 }
 427
 428 void
 429 StreamView::playlist_state_changed (Change ignored)
 430 {
 431         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_state_changed), ignored));
 432
 433         redisplay_diskstream ();
 434 }
 435
 436 void
 437 StreamView::redisplay_diskstream ()
 438 {
 439         list<AudioRegionView *>::iterator i, tmp;
 440         list<CrossfadeView*>::iterator xi, tmpx;
 441
 442
 443         for (i = region_views.begin(); i != region_views.end(); ++i) {
 444                 (*i)->set_valid (false);
 445         }
 446
 447         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 448                 (*xi)->set_valid (false);
 449                 if ((*xi)->visible()) {
 450                         (*xi)->show ();
 451                 }
 452         }
 453
 454         if (_trackview.is_audio_track()) {
 455                 _trackview.get_diskstream()->playlist()->foreach_region (this, &StreamView::add_region_view);
 456                 _trackview.get_diskstream()->playlist()->foreach_crossfade (this, &StreamView::add_crossfade);
 457         }
 458
 459         for (i = region_views.begin(); i != region_views.end(); ) {
 460                 tmp = i;
 461                 tmp++;
 462
 463                 if (!(*i)->is_valid()) {
 464                         delete *i;
 465                         region_views.erase (i);
 466                 }
 467
 468                 i = tmp;
 469         }
 470
 471         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 472                 tmpx = xi;
 473                 tmpx++;
 474
 475                 if (!(*xi)->valid()) {
 476                         delete *xi;
 477                         crossfade_views.erase (xi);
 478                 }
 479
 480                 xi = tmpx;
 481         }
 482
 483         /* now fix layering */
 484
 485         playlist_modified ();
 486 }
 487
 488 void
 489 StreamView::diskstream_changed (void *src_ignored)
 490 {
 491         AudioTrack *at;
 492
 493         if ((at = _trackview.audio_track()) != 0) {
 494                 DiskStream& ds = at->disk_stream();
 495                 /* XXX grrr: when will SigC++ allow me to bind references? */
 496                 Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*this, &StreamView::display_diskstream), &ds));
 497         } else {
 498                 Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::undisplay_diskstream));
 499         }
 500 }
 501
 502 void
 503 StreamView::apply_color (Gdk::Color& color, ColorTarget target)
 504
 505 {
 506         list<AudioRegionView *>::iterator i;
 507
 508         switch (target) {
 509         case RegionColor:
 510                 region_color = color;
 511                 for (i = region_views.begin(); i != region_views.end(); ++i) {
 512                         (*i)->set_color (region_color);
 513                 }
 514                 // stream_base_color = RGBA_TO_UINT (color.red/256, color.green/256, color.blue/256, 255);
 515                 // gnome_canvas_item_set (canvas_rect, "fill_color_rgba", stream_base_color, NULL);
 516                 break;
 517
 518         case StreamBaseColor:
 519                 // stream_base_color = RGBA_TO_UINT (color.red/256, color.green/256, color.blue/256, 255);
 520                 // gnome_canvas_item_set (canvas_rect, "fill_color_rgba", stream_base_color, NULL);
 521                 break;
 522         }
 523 }
 524
 525 void
 526 StreamView::set_show_waveforms (bool yn)
 527 {
 528         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 529                         (*i)->set_waveform_visible (yn);
 530         }
 531 }
 532
 533 void
 534 StreamView::set_selected_regionviews (AudioRegionSelection& regions)
 535 {
 536         bool selected;
 537
 538         // cerr << _trackview.name() << " (selected = " << regions.size() << ")" << endl;
 539         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 540
 541                 selected = false;
 542
 543                 for (AudioRegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
 544                         if (*i == *ii) {
 545                                 selected = true;
 546                         }
 547                 }
 548
 549                 // cerr << "\tregion " << (*i)->region.name() << " selected = " << selected << endl;
 550                 (*i)->set_selected (selected, this);
 551         }
 552 }
 553
 554 void
 555 StreamView::get_selectables (jack_nframes_t start, jack_nframes_t end, list<Selectable*>& results)
 556 {
 557         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 558                 if ((*i)->region.coverage(start, end) != OverlapNone) {
 559                         results.push_back (*i);
 560                 }
 561         }
 562 }
 563
 564 void
 565 StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
 566 {
 567         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 568                 if (!sel.audio_regions.contains (*i)) {
 569                         results.push_back (*i);
 570                 }
 571         }
 572 }
 573
 574 void
 575 StreamView::set_waveform_shape (WaveformShape shape)
 576 {
 577         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 578                 (*i)->set_waveform_shape (shape);
 579         }
 580 }
 581
 582 void
 583 StreamView::region_layered (AudioRegionView* rv)
 584 {
 585         rv->get_canvas_group()->lower_to_bottom();
 586
 587         /* don't ever leave it at the bottom, since then it doesn't
 588            get events - the  parent group does instead ...
 589         */
 590
 591         rv->get_canvas_group()->raise (rv->region.layer() + 1);
 592 }
 593
 594 void
 595 StreamView::rec_enable_changed (void *src)
 596 {
 597         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 598 }
 599
 600 void
 601 StreamView::sess_rec_enable_changed ()
 602 {
 603         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 604 }
 605
 606 void
 607 StreamView::transport_changed()
 608 {
 609         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 610 }
 611
 612 void
 613 StreamView::setup_rec_box ()
 614 {
 615         // cerr << _trackview.name() << " streamview SRB\n";
 616
 617         if (_trackview.session().transport_rolling()) {
 618
 619                 // cerr << "\trolling\n";
 620
 621                 if (!rec_active &&
 622                     _trackview.session().record_status() == Session::Recording &&
 623                     _trackview.get_diskstream()->record_enabled()) {
 624
 625                         if (_trackview.audio_track()->mode() == Normal && use_rec_regions && rec_regions.size() == rec_rects.size()) {
 626
 627                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 628
 629                                 AudioRegion::SourceList sources;
 630
 631                                 for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 632                                         (*prc).disconnect();
 633                                 }
 634                                 peak_ready_connections.clear();
 635
 636                                 for (uint32_t n=0; n < _trackview.get_diskstream()->n_channels(); ++n) {
 637                                         Source *src = (Source *) _trackview.get_diskstream()->write_source (n);
 638                                         if (src) {
 639                                                 sources.push_back (src);
 640                                                 peak_ready_connections.push_back (src->PeakRangeReady.connect (bind (mem_fun (*this, &StreamView::rec_peak_range_ready), src)));
 641                                         }
 642                                 }
 643
 644                                 // handle multi
 645
 646                                 jack_nframes_t start = 0;
 647                                 if (rec_regions.size() > 0) {
 648                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 649                                 }
 650
 651                                 AudioRegion * region = new AudioRegion(sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false);
 652                                 region->set_position (_trackview.session().transport_frame(), this);
 653                                 rec_regions.push_back (region);
 654                                 /* catch it if it goes away */
 655                                 region->GoingAway.connect (mem_fun (*this, &StreamView::remove_rec_region));
 656
 657                                 /* we add the region later */
 658                         }
 659
 660                         /* start a new rec box */
 661
 662                         AudioTrack* at;
 663
 664                         at = _trackview.audio_track(); /* we know what it is already */
 665                         DiskStream& ds = at->disk_stream();
 666                         jack_nframes_t frame_pos = ds.current_capture_start ();
 667                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 668                         gdouble xend;
 669                         uint32_t fill_color;
 670
 671                         switch (_trackview.audio_track()->mode()) {
 672                         case Normal:
 673                                 xend = xstart;
 674                                 fill_color = color_map[cRecordingRectFill];
 675                                 break;
 676
 677                         case Destructive:
 678                                 xend = xstart + 2;
 679                                 fill_color = color_map[cRecordingRectFill];
 680                                 /* make the recording rect translucent to allow
 681                                    the user to see the peak data coming in, etc.
 682                                 */
 683                                 fill_color = UINT_RGBA_CHANGE_A (fill_color, 120);
 684                                 break;
 685                         }
 686
 687                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 688                         rec_rect->property_x1() = xstart;
 689                         rec_rect->property_y1() = 1.0;
 690                         rec_rect->property_x2() = xend;
 691                         rec_rect->property_y2() = (double) _trackview.height - 1;
 692                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 693                         rec_rect->property_fill_color_rgba() = fill_color;
 694
 695                         RecBoxInfo recbox;
 696                         recbox.rectangle = rec_rect;
 697                         recbox.start = _trackview.session().transport_frame();
 698                         recbox.length = 0;
 699
 700                         rec_rects.push_back (recbox);
 701
 702                         screen_update_connection.disconnect();
 703                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &StreamView::update_rec_box));
 704                         rec_updating = true;
 705                         rec_active = true;
 706
 707                 } else if (rec_active &&
 708                            (_trackview.session().record_status() != Session::Recording ||
 709                             !_trackview.get_diskstream()->record_enabled())) {
 710
 711                         screen_update_connection.disconnect();
 712                         rec_active = false;
 713                         rec_updating = false;
 714
 715                 }
 716
 717         } else {
 718
 719                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 720
 721                 if (!rec_rects.empty() || !rec_regions.empty()) {
 722
 723                         /* disconnect rapid update */
 724                         screen_update_connection.disconnect();
 725
 726                         for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 727                                 (*prc).disconnect();
 728                         }
 729                         peak_ready_connections.clear();
 730
 731                         rec_updating = false;
 732                         rec_active = false;
 733                         last_rec_peak_frame = 0;
 734
 735                         /* remove temp regions */
 736                         for (list<AudioRegion*>::iterator iter=rec_regions.begin(); iter != rec_regions.end(); )
 737                         {
 738                                 list<AudioRegion*>::iterator tmp;
 739
 740                                 tmp = iter;
 741                                 ++tmp;
 742
 743                                 /* this will trigger the remove_region_view */
 744                                 delete *iter;
 745
 746                                 iter = tmp;
 747                         }
 748
 749                         rec_regions.clear();
 750
 751                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 752
 753
 754                         /* transport stopped, clear boxes */
 755                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 756                                 RecBoxInfo &rect = (*iter);
 757                                 delete rect.rectangle;
 758                         }
 759
 760                         rec_rects.clear();
 761
 762                 }
 763         }
 764 }
 765
 766
 767 void
 768 StreamView::update_rec_box ()
 769 {
 770         if (rec_active && rec_rects.size() > 0) {
 771                 /* only update the last box */
 772                 RecBoxInfo & rect = rec_rects.back();
 773                 jack_nframes_t at = _trackview.get_diskstream()->current_capture_end();
 774                 double xstart;
 775                 double xend;
 776
 777                 switch (_trackview.audio_track()->mode()) {
 778                 case Normal:
 779                         rect.length = at - rect.start;
 780                         xstart = _trackview.editor.frame_to_pixel (rect.start);
 781                         xend = _trackview.editor.frame_to_pixel (at);
 782                         break;
 783
 784                 case Destructive:
 785                         rect.length = 2;
 786                         xstart = _trackview.editor.frame_to_pixel (_trackview.get_diskstream()->current_capture_start());
 787                         xend = _trackview.editor.frame_to_pixel (at);
 788                         break;
 789                 }
 790
 791                 rect.rectangle->property_x1() = xstart;
 792                 rect.rectangle->property_x2() = xend;
 793         }
 794 }
 795
 796 AudioRegionView*
 797 StreamView::find_view (const AudioRegion& region)
 798 {
 799         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 800
 801                 if (&(*i)->region == &region) {
 802                         return *i;
 803                 }
 804         }
 805         return 0;
 806 }
 807
 808 void
 809 StreamView::foreach_regionview (sigc::slot<void,AudioRegionView*> slot)
 810 {
 811         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 812                 slot (*i);
 813         }
 814 }
 815
 816 void
 817 StreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 818 {
 819         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 820                 ((*i)->*pmf) ();
 821         }
 822 }
 823
 824 void
 825 StreamView::rec_peak_range_ready (jack_nframes_t start, jack_nframes_t cnt, Source * src)
 826 {
 827         // this is called from the peak building thread
 828
 829         ENSURE_GUI_THREAD(bind (mem_fun (*this, &StreamView::rec_peak_range_ready), start, cnt, src));
 830
 831         if (rec_peak_ready_map.size() == 0 || start+cnt > last_rec_peak_frame) {
 832                 last_rec_peak_frame = start + cnt;
 833         }
 834
 835         rec_peak_ready_map[src] = true;
 836
 837         if (rec_peak_ready_map.size() == _trackview.get_diskstream()->n_channels()) {
 838                 this->update_rec_regions ();
 839                 rec_peak_ready_map.clear();
 840         }
 841 }
 842
 843 void
 844 StreamView::update_rec_regions ()
 845 {
 846         if (use_rec_regions) {
 847
 848                 uint32_t n = 0;
 849
 850                 for (list<AudioRegion*>::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 851
 852                         list<AudioRegion*>::iterator tmp;
 853
 854                         tmp = iter;
 855                         ++tmp;
 856
 857                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 858                                 /* rect already hidden, this region is done */
 859                                 iter = tmp;
 860                                 continue;
 861                         }
 862
 863                         AudioRegion * region = (*iter);
 864                         jack_nframes_t origlen = region->length();
 865
 866                         if (region == rec_regions.back() && rec_active) {
 867
 868                                 if (last_rec_peak_frame > region->start()) {
 869
 870                                         jack_nframes_t nlen = last_rec_peak_frame - region->start();
 871
 872                                         if (nlen != region->length()) {
 873
 874                                                 region->freeze ();
 875                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 876                                                 region->set_length (nlen, this);
 877                                                 region->thaw ("updated");
 878
 879                                                 if (origlen == 1) {
 880                                                         /* our special initial length */
 881                                                         add_region_view_internal (region, false);
 882                                                 }
 883
 884                                                 /* also update rect */
 885                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 886                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 887                                                 rect->property_x2() = xend;
 888                                         }
 889                                 }
 890
 891                         } else {
 892
 893                                 jack_nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 894
 895                                 if (nlen != region->length()) {
 896
 897                                         if (region->source(0).length() >= region->start() + nlen) {
 898
 899                                                 region->freeze ();
 900                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 901                                                 region->set_length (nlen, this);
 902                                                 region->thaw ("updated");
 903
 904                                                 if (origlen == 1) {
 905                                                         /* our special initial length */
 906                                                         add_region_view_internal (region, false);
 907                                                 }
 908
 909                                                 /* also hide rect */
 910                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 911                                                 rect->hide();
 912
 913                                         }
 914                                 }
 915                         }
 916
 917                         iter = tmp;
 918                 }
 919         }
 920 }
 921
 922 void
 923 StreamView::show_all_xfades ()
 924 {
 925         foreach_crossfadeview (&CrossfadeView::show);
 926         crossfades_visible = true;
 927 }
 928
 929 void
 930 StreamView::hide_all_xfades ()
 931 {
 932         foreach_crossfadeview (&CrossfadeView::hide);
 933         crossfades_visible = false;
 934 }
 935
 936 void
 937 StreamView::hide_xfades_involving (AudioRegionView& rv)
 938 {
 939         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 940                 if ((*i)->crossfade.involves (rv.region)) {
 941                         (*i)->fake_hide ();
 942                 }
 943         }
 944 }
 945
 946 void
 947 StreamView::reveal_xfades_involving (AudioRegionView& rv)
 948 {
 949         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 950                 if ((*i)->crossfade.involves (rv.region) && (*i)->visible()) {
 951                         (*i)->show ();
 952                 }
 953         }
 954 }
 955
 956 void
 957 StreamView::color_handler (ColorID id, uint32_t val)
 958 {
 959         switch (id) {
 960         case cAudioTrackBase:
 961                 if (_trackview.is_audio_track()) {
 962                         canvas_rect->property_fill_color_rgba() = val;
 963                 }
 964                 break;
 965         case cAudioBusBase:
 966                 if (!_trackview.is_audio_track()) {
 967                         canvas_rect->property_fill_color_rgba() = val;
 968                 }
 969                 break;
 970         case cAudioTrackOutline:
 971                 canvas_rect->property_outline_color_rgba() = val;
 972                 break;
 973
 974         default:
 975                 break;
 976         }
 977 }