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 "audio_time_axis.h"
  17 #include "canvas-waveview.h"
  18 #include "canvas-simplerect.h"
  19 #include "region_selection.h"
  20 #include "selection.h"
  21 #include "public_editor.h"
  22 #include "ardour_ui.h"
  23 #include "crossfade_view.h"
  24 #include "rgb_macros.h"
  25 #include "gui_thread.h"
  26 #include "utils.h"
  27
  28 using namespace ARDOUR;
  29 using namespace Editing;
  30
  31 StreamView::StreamView (AudioTimeAxisView& tv)
  32         : _trackview (tv)
  33 {
  34         region_color = _trackview.color();
  35         crossfades_visible = true;
  36
  37         if (tv.is_audio_track()) {
  38                 /* TRACK */
  39                 //stream_base_color = RGBA_TO_UINT (222,223,218,255);
  40                 stream_base_color = color_map[cAudioTrackBase];
  41         } else {
  42                 /* BUS */
  43                 //stream_base_color = RGBA_TO_UINT (230,226,238,255);
  44                 stream_base_color = color_map[cAudioBusBase];
  45         }
  46
  47         /* set_position() will position the group */
  48
  49         //GTK2FIX -- how to get the group? is the canvas display really a group?
  50         //canvas_group = gnome_canvas_item_new (GNOME_CANVAS_GROUP(_trackview.canvas_display),
  51         //                          gnome_canvas_group_get_type (),
  52         //                          NULL);
  53         canvas_group = new ArdourCanvas::Group(*_trackview.canvas_display);
  54
  55         //canvas_rect = gnome_canvas_item_new (GNOME_CANVAS_GROUP(canvas_group),
  56         //                         gnome_canvas_simplerect_get_type(),
  57         //                         "x1", 0.0,
  58         //                         "y1", 0.0,
  59         //                         "x2", 1000000.0,
  60         //                         "y2", (double) tv.height,
  61         //                         "outline_color_rgba", color_map[cAudioTrackOutline],
  62         //                         /* outline ends and bottom */
  63         //                         "outline_what", (guint32) (0x1|0x2|0x8),
  64         //                         "fill_color_rgba", stream_base_color,
  65         //      ]                  NULL);
  66         canvas_rect = new ArdourCanvas::SimpleRect (*canvas_group);
  67         canvas_rect->property_x1() = 0.0;
  68         canvas_rect->property_y1() = 0.0;
  69         canvas_rect->property_x2() = 1000000.0;
  70         canvas_rect->property_y2() = (double) tv.height;
  71         canvas_rect->property_outline_color_rgba() = color_map[cAudioTrackOutline];
  72         /* outline ends and bottom */
  73         canvas_rect->property_outline_what() = (guint32) (0x1|0x2|0x8);
  74         canvas_rect->property_fill_color_rgba() = stream_base_color;
  75
  76         canvas_rect->signal_event().connect (bind (mem_fun (_trackview.editor, &PublicEditor::canvas_stream_view_event), canvas_rect, &_trackview));
  77
  78         _samples_per_unit = _trackview.editor.get_current_zoom();
  79         _amplitude_above_axis = 1.0;
  80
  81         if (_trackview.is_audio_track()) {
  82                 _trackview.audio_track()->diskstream_changed.connect (mem_fun (*this, &StreamView::diskstream_changed));
  83                 _trackview.session().TransportStateChange.connect (mem_fun (*this, &StreamView::transport_changed));
  84                 _trackview.get_diskstream()->record_enable_changed.connect (mem_fun (*this, &StreamView::rec_enable_changed));
  85                 _trackview.session().RecordStateChanged.connect (mem_fun (*this, &StreamView::sess_rec_enable_changed));
  86         }
  87
  88         rec_updating = false;
  89         rec_active = false;
  90         use_rec_regions = tv.editor.show_waveforms_recording ();
  91         last_rec_peak_frame = 0;
  92 }
  93
  94 StreamView::~StreamView ()
  95 {
  96         undisplay_diskstream ();
  97         delete canvas_group;
  98 }
  99
 100 void
 101 StreamView::attach ()
 102 {
 103         if (_trackview.is_audio_track()) {
 104                 display_diskstream (_trackview.get_diskstream());
 105         }
 106 }
 107
 108 int
 109 StreamView::set_position (gdouble x, gdouble y)
 110
 111 {
 112         canvas_group->property_x() = x;
 113         canvas_group->property_y() = y;
 114         return 0;
 115 }
 116
 117 int
 118 StreamView::set_height (gdouble h)
 119 {
 120         /* limit the values to something sane-ish */
 121
 122         if (h < 10.0 || h > 1000.0) {
 123                 return -1;
 124         }
 125
 126         canvas_rect->property_y2() = h;
 127
 128         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 129                 (*i)->set_height (h);
 130         }
 131
 132         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 133                 (*i)->set_height (h);
 134         }
 135
 136         for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
 137                 RecBoxInfo &recbox = (*i);
 138                 recbox.rectangle->property_y2() = h - 1.0;
 139         }
 140
 141         return 0;
 142 }
 143
 144 int
 145 StreamView::set_samples_per_unit (gdouble spp)
 146 {
 147         AudioRegionViewList::iterator i;
 148
 149         if (spp < 1.0) {
 150                 return -1;
 151         }
 152
 153         _samples_per_unit = spp;
 154
 155         for (i = region_views.begin(); i != region_views.end(); ++i) {
 156                 (*i)->set_samples_per_unit (spp);
 157         }
 158
 159         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 160                 (*xi)->set_samples_per_unit (spp);
 161         }
 162
 163         for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
 164                 RecBoxInfo &recbox = (*xi);
 165
 166                 gdouble xstart = _trackview.editor.frame_to_pixel ( recbox.start );
 167                 gdouble xend = _trackview.editor.frame_to_pixel ( recbox.start + recbox.length );
 168
 169                 recbox.rectangle->property_x1() = xstart;
 170                 recbox.rectangle->property_x2() = xend;
 171         }
 172
 173         return 0;
 174 }
 175
 176 int
 177 StreamView::set_amplitude_above_axis (gdouble app)
 178
 179 {
 180         AudioRegionViewList::iterator i;
 181
 182         if (app < 1.0) {
 183                 return -1;
 184         }
 185
 186         _amplitude_above_axis = app;
 187
 188         for (i = region_views.begin(); i != region_views.end(); ++i) {
 189                 (*i)->set_amplitude_above_axis (app);
 190         }
 191
 192         return 0;
 193 }
 194
 195 void
 196 StreamView::add_region_view (Region *r)
 197 {
 198         add_region_view_internal (r, true);
 199 }
 200
 201 void
 202 StreamView::add_region_view_internal (Region *r, bool wait_for_waves)
 203 {
 204         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::add_region_view), r));
 205
 206         AudioRegion* region = dynamic_cast<AudioRegion*> (r);
 207
 208         if (region == 0) {
 209                 return;
 210         }
 211
 212         AudioRegionView *region_view;
 213         list<AudioRegionView *>::iterator i;
 214
 215         for (i = region_views.begin(); i != region_views.end(); ++i) {
 216                 if (&(*i)->region == region) {
 217
 218                         /* great. we already have a AudioRegionView for this Region. use it again.
 219                          */
 220
 221                         (*i)->set_valid (true);
 222                         return;
 223                 }
 224         }
 225
 226         region_view = new AudioRegionView (canvas_group,
 227                                            _trackview,
 228                                            *region,
 229                                            _samples_per_unit,
 230                                            _amplitude_above_axis,
 231                                            region_color,
 232                                            wait_for_waves);
 233
 234         region_views.push_front (region_view);
 235
 236         /* follow global waveform setting */
 237
 238         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 239
 240         /* catch regionview going away */
 241
 242         region->GoingAway.connect (mem_fun (*this, &StreamView::remove_region_view));
 243
 244         AudioRegionViewAdded (region_view);
 245 }
 246
 247 void
 248 StreamView::remove_region_view (Region *r)
 249 {
 250         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::remove_region_view), r));
 251
 252         AudioRegion* ar = dynamic_cast<AudioRegion*> (r);
 253
 254         if (ar == 0) {
 255                 return;
 256         }
 257
 258         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 259                 if (&((*i)->region) == ar) {
 260                         delete *i;
 261                         region_views.erase (i);
 262                         break;
 263                 }
 264         }
 265
 266         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 267                 list<CrossfadeView*>::iterator tmp;
 268
 269                 tmp = i;
 270                 ++tmp;
 271
 272                 if ((*i)->crossfade.involves (*ar)) {
 273                         delete *i;
 274                         crossfade_views.erase (i);
 275                 }
 276
 277                 i = tmp;
 278         }
 279 }
 280
 281 void
 282 StreamView::remove_rec_region (Region *r)
 283 {
 284         ENSURE_GUI_THREAD(bind (mem_fun (*this, &StreamView::remove_rec_region), r));
 285
 286         if (!Gtkmm2ext::UI::instance()->caller_is_gui_thread()) {
 287                 fatal << "region deleted from non-GUI thread!" << endmsg;
 288                 /*NOTREACHED*/
 289         }
 290
 291         AudioRegion* ar = dynamic_cast<AudioRegion*> (r);
 292
 293         if (ar == 0) {
 294                 return;
 295         }
 296
 297         for (list<AudioRegion *>::iterator i = rec_regions.begin(); i != rec_regions.end(); ++i) {
 298                 if (*i == ar) {
 299                         rec_regions.erase (i);
 300                         break;
 301                 }
 302         }
 303 }
 304
 305 void
 306 StreamView::undisplay_diskstream ()
 307 {
 308         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 309                 delete *i;
 310         }
 311
 312         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 313                 delete *i;
 314         }
 315
 316         region_views.clear();
 317         crossfade_views.clear ();
 318 }
 319
 320 void
 321 StreamView::display_diskstream (DiskStream *ds)
 322 {
 323         playlist_change_connection.disconnect();
 324         playlist_changed (ds);
 325         playlist_change_connection = ds->PlaylistChanged.connect (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 326 }
 327
 328 void
 329 StreamView::playlist_modified ()
 330 {
 331         ENSURE_GUI_THREAD (mem_fun (*this, &StreamView::playlist_modified));
 332
 333         /* if the playlist is modified, make sure xfades are on top and all the regionviews are stacked
 334            correctly.
 335         */
 336
 337         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 338                 region_layered (*i);
 339         }
 340
 341         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 342                 (*i)->get_canvas_group()->raise_to_top();
 343         }
 344 }
 345
 346 void
 347 StreamView::playlist_changed (DiskStream *ds)
 348 {
 349         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_changed), ds));
 350
 351         /* disconnect from old playlist */
 352
 353         for (vector<sigc::connection>::iterator i = playlist_connections.begin(); i != playlist_connections.end(); ++i) {
 354                 (*i).disconnect();
 355         }
 356
 357         playlist_connections.clear();
 358         undisplay_diskstream ();
 359
 360         /* draw it */
 361
 362         redisplay_diskstream ();
 363
 364         /* catch changes */
 365
 366         playlist_connections.push_back (ds->playlist()->RegionAdded.connect (mem_fun (*this, &StreamView::add_region_view)));
 367         playlist_connections.push_back (ds->playlist()->RegionRemoved.connect (mem_fun (*this, &StreamView::remove_region_view)));
 368         playlist_connections.push_back (ds->playlist()->StateChanged.connect (mem_fun (*this, &StreamView::playlist_state_changed)));
 369         playlist_connections.push_back (ds->playlist()->Modified.connect (mem_fun (*this, &StreamView::playlist_modified)));
 370         playlist_connections.push_back (ds->playlist()->NewCrossfade.connect (mem_fun (*this, &StreamView::add_crossfade)));
 371 }
 372
 373 void
 374 StreamView::add_crossfade (Crossfade *crossfade)
 375 {
 376         AudioRegionView* lview = 0;
 377         AudioRegionView* rview = 0;
 378
 379         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::add_crossfade), crossfade));
 380
 381         /* first see if we already have a CrossfadeView for this Crossfade */
 382
 383         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 384                 if (&(*i)->crossfade == crossfade) {
 385                         if (!crossfades_visible) {
 386                                 (*i)->hide();
 387                         } else {
 388                                 (*i)->show ();
 389                         }
 390                         (*i)->set_valid (true);
 391                         return;
 392                 }
 393         }
 394
 395         /* create a new one */
 396
 397         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 398                 if (!lview && &((*i)->region) == &crossfade->out()) {
 399                         lview = *i;
 400                 }
 401                 if (!rview && &((*i)->region) == &crossfade->in()) {
 402                         rview = *i;
 403                 }
 404         }
 405
 406         CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
 407                                                _trackview,
 408                                                *crossfade,
 409                                                _samples_per_unit,
 410                                                region_color,
 411                                                *lview, *rview);
 412
 413         crossfade->Invalidated.connect (mem_fun (*this, &StreamView::remove_crossfade));
 414         crossfade_views.push_back (cv);
 415
 416         if (!crossfades_visible) {
 417                 cv->hide ();
 418         }
 419 }
 420
 421 void
 422 StreamView::remove_crossfade (Crossfade *xfade)
 423 {
 424         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::remove_crossfade), xfade));
 425
 426         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 427                 if (&(*i)->crossfade == xfade) {
 428                         delete *i;
 429                         crossfade_views.erase (i);
 430                         break;
 431                 }
 432         }
 433 }
 434
 435 void
 436 StreamView::playlist_state_changed (Change ignored)
 437 {
 438         ENSURE_GUI_THREAD (bind (mem_fun (*this, &StreamView::playlist_state_changed), ignored));
 439
 440         redisplay_diskstream ();
 441 }
 442
 443 void
 444 StreamView::redisplay_diskstream ()
 445 {
 446         list<AudioRegionView *>::iterator i, tmp;
 447         list<CrossfadeView*>::iterator xi, tmpx;
 448
 449         for (i = region_views.begin(); i != region_views.end(); ++i) {
 450                 (*i)->set_valid (false);
 451         }
 452
 453         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 454                 (*xi)->set_valid (false);
 455                 if ((*xi)->visible()) {
 456                         (*xi)->show ();
 457                 }
 458         }
 459
 460         if (_trackview.is_audio_track()) {
 461                 _trackview.get_diskstream()->playlist()->foreach_region (this, &StreamView::add_region_view);
 462                 _trackview.get_diskstream()->playlist()->foreach_crossfade (this, &StreamView::add_crossfade);
 463         }
 464
 465         for (i = region_views.begin(); i != region_views.end(); ) {
 466                 tmp = i;
 467                 tmp++;
 468
 469                 if (!(*i)->is_valid()) {
 470                         delete *i;
 471                         region_views.erase (i);
 472                 }
 473
 474                 i = tmp;
 475         }
 476
 477         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 478                 tmpx = xi;
 479                 tmpx++;
 480
 481                 if (!(*xi)->valid()) {
 482                         delete *xi;
 483                         crossfade_views.erase (xi);
 484                 }
 485
 486                 xi = tmpx;
 487         }
 488
 489         /* now fix layering */
 490
 491         playlist_modified ();
 492 }
 493
 494 void
 495 StreamView::diskstream_changed (void *src_ignored)
 496 {
 497         AudioTrack *at;
 498
 499         if ((at = _trackview.audio_track()) != 0) {
 500                 DiskStream& ds = at->disk_stream();
 501                 /* XXX grrr: when will SigC++ allow me to bind references? */
 502                 Gtkmm2ext::UI::instance()->call_slot (bind (mem_fun (*this, &StreamView::display_diskstream), &ds));
 503         } else {
 504                 Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::undisplay_diskstream));
 505         }
 506 }
 507
 508 void
 509 StreamView::apply_color (Gdk::Color& color, ColorTarget target)
 510
 511 {
 512         list<AudioRegionView *>::iterator i;
 513
 514         switch (target) {
 515         case RegionColor:
 516                 region_color = color;
 517                 for (i = region_views.begin(); i != region_views.end(); ++i) {
 518                         (*i)->set_color (region_color);
 519                 }
 520                 // stream_base_color = RGBA_TO_UINT (color.red/256, color.green/256, color.blue/256, 255);
 521                 // gnome_canvas_item_set (canvas_rect, "fill_color_rgba", stream_base_color, NULL);
 522                 break;
 523
 524         case StreamBaseColor:
 525                 // stream_base_color = RGBA_TO_UINT (color.red/256, color.green/256, color.blue/256, 255);
 526                 // gnome_canvas_item_set (canvas_rect, "fill_color_rgba", stream_base_color, NULL);
 527                 break;
 528         }
 529 }
 530
 531 void
 532 StreamView::set_show_waveforms (bool yn)
 533 {
 534         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 535                         (*i)->set_waveform_visible (yn);
 536         }
 537 }
 538
 539 void
 540 StreamView::set_selected_regionviews (AudioRegionSelection& regions)
 541 {
 542         bool selected;
 543
 544         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 545
 546                 selected = false;
 547
 548                 for (AudioRegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
 549                         if (*i == *ii) {
 550                                 selected = true;
 551                         }
 552                 }
 553
 554                 (*i)->set_selected (selected, this);
 555         }
 556 }
 557
 558 void
 559 StreamView::get_selectables (jack_nframes_t start, jack_nframes_t end, list<Selectable*>& results)
 560 {
 561         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 562                 if ((*i)->region.coverage(start, end) != OverlapNone) {
 563                         results.push_back (*i);
 564                 }
 565         }
 566 }
 567
 568 void
 569 StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
 570 {
 571         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 572                 if (!sel.audio_regions.contains (*i)) {
 573                         results.push_back (*i);
 574                 }
 575         }
 576 }
 577
 578 void
 579 StreamView::set_waveform_shape (WaveformShape shape)
 580 {
 581         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 582                 (*i)->set_waveform_shape (shape);
 583         }
 584 }
 585
 586 void
 587 StreamView::region_layered (AudioRegionView* rv)
 588 {
 589         rv->get_canvas_group()->lower_to_bottom();
 590
 591         /* don't ever leave it at the bottom, since then it doesn't
 592            get events - the  parent group does instead ...
 593         */
 594
 595         rv->get_canvas_group()->raise (rv->region.layer() + 1);
 596 }
 597
 598 void
 599 StreamView::rec_enable_changed (void *src)
 600 {
 601         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 602 }
 603
 604 void
 605 StreamView::sess_rec_enable_changed ()
 606 {
 607         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 608 }
 609
 610 void
 611 StreamView::transport_changed()
 612 {
 613         Gtkmm2ext::UI::instance()->call_slot (mem_fun (*this, &StreamView::setup_rec_box));
 614 }
 615
 616 void
 617 StreamView::setup_rec_box ()
 618 {
 619         // cerr << _trackview.name() << " streamview SRB\n";
 620
 621         if (_trackview.session().transport_rolling()) {
 622
 623                 // cerr << "\trolling\n";
 624
 625                 if (!rec_active
 626                     && _trackview.session().record_status() == Session::Recording
 627                     && _trackview.get_diskstream()->record_enabled()) {
 628
 629                         if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
 630                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 631
 632                                 AudioRegion::SourceList sources;
 633
 634                                 for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 635                                         (*prc).disconnect();
 636                                 }
 637                                 peak_ready_connections.clear();
 638
 639                                 for (uint32_t n=0; n < _trackview.get_diskstream()->n_channels(); ++n) {
 640                                         Source *src = (Source *) _trackview.get_diskstream()->write_source (n);
 641                                         if (src) {
 642                                                 sources.push_back (src);
 643                                                 peak_ready_connections.push_back (src->PeakRangeReady.connect (bind (mem_fun (*this, &StreamView::rec_peak_range_ready), src)));
 644                                         }
 645                                 }
 646
 647                                 // handle multi
 648
 649                                 jack_nframes_t start = 0;
 650                                 if (rec_regions.size() > 0) {
 651                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 652                                 }
 653
 654                                 AudioRegion * region = new AudioRegion(sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false);
 655                                 region->set_position (_trackview.session().transport_frame(), this);
 656                                 rec_regions.push_back (region);
 657                                 /* catch it if it goes away */
 658                                 region->GoingAway.connect (mem_fun (*this, &StreamView::remove_rec_region));
 659
 660                                 /* we add the region later */
 661                         }
 662
 663                         /* start a new rec box */
 664
 665                         AudioTrack* at;
 666
 667                         at = _trackview.audio_track(); /* we know what it is already */
 668                         DiskStream& ds = at->disk_stream();
 669                         jack_nframes_t frame_pos = ds.current_capture_start ();
 670                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 671                         gdouble xend = xstart;
 672
 673                         ArdourCanvas::SimpleRect * rec_rect = new Gnome::Canvas::SimpleRect (*canvas_group);
 674                         rec_rect->property_x1() = xstart;
 675                         rec_rect->property_y1() = 1.0;
 676                         rec_rect->property_x2() = xend;
 677                         rec_rect->property_y2() = (double) _trackview.height - 1;
 678                         rec_rect->property_outline_color_rgba() = color_map[cRecordingRectOutline];
 679                         rec_rect->property_fill_color_rgba() =  color_map[cRecordingRectFill];
 680
 681                         RecBoxInfo recbox;
 682                         recbox.rectangle = rec_rect;
 683                         recbox.start = _trackview.session().transport_frame();
 684                         recbox.length = 0;
 685
 686                         rec_rects.push_back (recbox);
 687
 688                         screen_update_connection.disconnect();
 689                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (mem_fun (*this, &StreamView::update_rec_box));
 690                         rec_updating = true;
 691                         rec_active = true;
 692
 693                 } else if (rec_active &&
 694                            (_trackview.session().record_status() != Session::Recording ||
 695                             !_trackview.get_diskstream()->record_enabled())) {
 696
 697                         screen_update_connection.disconnect();
 698                         rec_active = false;
 699                         rec_updating = false;
 700
 701                 }
 702
 703         } else {
 704
 705                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 706
 707                 if (!rec_rects.empty() || !rec_regions.empty()) {
 708
 709                         /* disconnect rapid update */
 710                         screen_update_connection.disconnect();
 711
 712                         for (list<sigc::connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 713                                 (*prc).disconnect();
 714                         }
 715                         peak_ready_connections.clear();
 716
 717                         rec_updating = false;
 718                         rec_active = false;
 719                         last_rec_peak_frame = 0;
 720
 721                         /* remove temp regions */
 722                         for (list<AudioRegion*>::iterator iter=rec_regions.begin(); iter != rec_regions.end(); )
 723                         {
 724                                 list<AudioRegion*>::iterator tmp;
 725
 726                                 tmp = iter;
 727                                 ++tmp;
 728
 729                                 /* this will trigger the remove_region_view */
 730                                 delete *iter;
 731
 732                                 iter = tmp;
 733                         }
 734
 735                         rec_regions.clear();
 736
 737                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 738
 739
 740                         /* transport stopped, clear boxes */
 741                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 742                                 RecBoxInfo &rect = (*iter);
 743                                 delete rect.rectangle;
 744                         }
 745
 746                         rec_rects.clear();
 747
 748                 }
 749         }
 750 }
 751
 752
 753 void
 754 StreamView::update_rec_box ()
 755 {
 756         /* only update the last box */
 757         if (rec_active && rec_rects.size() > 0) {
 758                 RecBoxInfo & rect = rec_rects.back();
 759                 jack_nframes_t at = _trackview.get_diskstream()->current_capture_end();
 760
 761                 rect.length = at - rect.start;
 762
 763                 gdouble xstart = _trackview.editor.frame_to_pixel ( rect.start );
 764                 gdouble xend = _trackview.editor.frame_to_pixel ( at );
 765
 766                 rect.rectangle->property_x1() = xstart;
 767                 rect.rectangle->property_x2() = xend;
 768         }
 769 }
 770
 771 AudioRegionView*
 772 StreamView::find_view (const AudioRegion& region)
 773 {
 774         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 775
 776                 if (&(*i)->region == &region) {
 777                         return *i;
 778                 }
 779         }
 780         return 0;
 781 }
 782
 783 void
 784 StreamView::foreach_regionview (sigc::slot<void,AudioRegionView*> slot)
 785 {
 786         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 787                 slot (*i);
 788         }
 789 }
 790
 791 void
 792 StreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 793 {
 794         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 795                 ((*i)->*pmf) ();
 796         }
 797 }
 798
 799 void
 800 StreamView::rec_peak_range_ready (jack_nframes_t start, jack_nframes_t cnt, Source * src)
 801 {
 802         // this is called from the peak building thread
 803
 804         ENSURE_GUI_THREAD(bind (mem_fun (*this, &StreamView::rec_peak_range_ready), start, cnt, src));
 805
 806         if (rec_peak_ready_map.size() == 0 || start+cnt > last_rec_peak_frame) {
 807                 last_rec_peak_frame = start + cnt;
 808         }
 809
 810         rec_peak_ready_map[src] = true;
 811
 812         if (rec_peak_ready_map.size() == _trackview.get_diskstream()->n_channels()) {
 813                 this->update_rec_regions ();
 814                 rec_peak_ready_map.clear();
 815         }
 816 }
 817
 818 void
 819 StreamView::update_rec_regions ()
 820 {
 821         if (use_rec_regions) {
 822
 823                 uint32_t n = 0;
 824
 825                 for (list<AudioRegion*>::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 826
 827                         list<AudioRegion*>::iterator tmp;
 828
 829                         tmp = iter;
 830                         ++tmp;
 831
 832                         if (!canvas_item_visible (rec_rects[n].rectangle)) {
 833                                 /* rect already hidden, this region is done */
 834                                 iter = tmp;
 835                                 continue;
 836                         }
 837
 838                         AudioRegion * region = (*iter);
 839                         jack_nframes_t origlen = region->length();
 840
 841                         if (region == rec_regions.back() && rec_active) {
 842
 843                                 if (last_rec_peak_frame > region->start()) {
 844
 845                                         jack_nframes_t nlen = last_rec_peak_frame - region->start();
 846
 847                                         if (nlen != region->length()) {
 848
 849                                                 region->freeze ();
 850                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 851                                                 region->set_length (nlen, this);
 852                                                 region->thaw ("updated");
 853
 854                                                 if (origlen == 1) {
 855                                                         /* our special initial length */
 856                                                         add_region_view_internal (region, false);
 857                                                 }
 858
 859                                                 /* also update rect */
 860                                                 ArdourCanvas::SimpleRect * rect = rec_rects[n].rectangle;
 861                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 862                                                 rect->property_x2() = xend;
 863                                         }
 864                                 }
 865
 866                         } else {
 867
 868                                 jack_nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 869
 870                                 if (nlen != region->length()) {
 871
 872                                         if (region->source(0).length() >= region->start() + nlen) {
 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 hide rect */
 885                                                 ArdourCanvas::Item * rect = rec_rects[n].rectangle;
 886                                                 rect->hide();
 887
 888                                         }
 889                                 }
 890                         }
 891
 892                         iter = tmp;
 893                 }
 894         }
 895 }
 896
 897 void
 898 StreamView::show_all_xfades ()
 899 {
 900         foreach_crossfadeview (&CrossfadeView::show);
 901         crossfades_visible = true;
 902 }
 903
 904 void
 905 StreamView::hide_all_xfades ()
 906 {
 907         foreach_crossfadeview (&CrossfadeView::hide);
 908         crossfades_visible = false;
 909 }
 910
 911 void
 912 StreamView::hide_xfades_involving (AudioRegionView& rv)
 913 {
 914         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 915                 if ((*i)->crossfade.involves (rv.region)) {
 916                         (*i)->fake_hide ();
 917                 }
 918         }
 919 }
 920
 921 void
 922 StreamView::reveal_xfades_involving (AudioRegionView& rv)
 923 {
 924         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 925                 if ((*i)->crossfade.involves (rv.region) && (*i)->visible()) {
 926                         (*i)->show ();
 927                 }
 928         }
 929 }