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