gtk2_ardour/streamview.cc

   1 #include <cmath>
   2
   3 #include <gtk--.h>
   4
   5 #include <gtkmmext/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 "extra_bind.h"
  26 #include "gui_thread.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         canvas_group = gtk_canvas_item_new (GTK_CANVAS_GROUP(_trackview.canvas_display),
  50                                             gtk_canvas_group_get_type (),
  51                                             NULL);
  52
  53         canvas_rect = gtk_canvas_item_new (GTK_CANVAS_GROUP(canvas_group),
  54                                            gtk_canvas_simplerect_get_type(),
  55                                            "x1", 0.0,
  56                                            "y1", 0.0,
  57                                            "x2", 1000000.0,
  58                                            "y2", (double) tv.height,
  59                                            "outline_color_rgba", color_map[cAudioTrackOutline],
  60                                            /* outline ends and bottom */
  61                                            "outline_what", (guint32) (0x1|0x2|0x8),
  62                                            "fill_color_rgba", stream_base_color,
  63                                            NULL);
  64
  65         gtk_signal_connect (GTK_OBJECT(canvas_rect), "event",
  66                             (GtkSignalFunc) PublicEditor::canvas_stream_view_event, &_trackview);
  67
  68         _samples_per_unit = _trackview.editor.get_current_zoom();
  69         _amplitude_above_axis = 1.0;
  70
  71         if (_trackview.is_audio_track()) {
  72                 _trackview.audio_track()->diskstream_changed.connect (slot (*this, &StreamView::diskstream_changed));
  73                 _trackview.session().TransportStateChange.connect (slot (*this, &StreamView::transport_changed));
  74                 _trackview.get_diskstream()->record_enable_changed.connect (slot (*this, &StreamView::rec_enable_changed));
  75                 _trackview.session().RecordEnabled.connect (slot (*this, &StreamView::sess_rec_enable_changed));
  76                 _trackview.session().RecordDisabled.connect (slot (*this, &StreamView::sess_rec_enable_changed));
  77         }
  78
  79         rec_updating = false;
  80         rec_active = false;
  81         use_rec_regions = tv.editor.show_waveforms_recording ();
  82         last_rec_peak_frame = 0;
  83 }
  84
  85 StreamView::~StreamView ()
  86 {
  87         undisplay_diskstream ();
  88         gtk_object_destroy (GTK_OBJECT(canvas_group));
  89 }
  90
  91 void
  92 StreamView::attach ()
  93 {
  94         if (_trackview.is_audio_track()) {
  95                 display_diskstream (_trackview.get_diskstream());
  96         }
  97 }
  98
  99 int
 100 StreamView::set_position (gdouble x, gdouble y)
 101
 102 {
 103         gtk_canvas_item_set (canvas_group, "x", x, "y", y, NULL);
 104         return 0;
 105 }
 106
 107 int
 108 StreamView::set_height (gdouble h)
 109 {
 110         /* limit the values to something sane-ish */
 111
 112         if (h < 10.0 || h > 1000.0) {
 113                 return -1;
 114         }
 115
 116         gtk_object_set (GTK_OBJECT(canvas_rect), "y2", h, NULL);
 117
 118         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 119                 (*i)->set_height (h);
 120         }
 121
 122         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 123                 (*i)->set_height (h);
 124         }
 125
 126         for (vector<RecBoxInfo>::iterator i = rec_rects.begin(); i != rec_rects.end(); ++i) {
 127                 RecBoxInfo &recbox = (*i);
 128                 gtk_object_set (GTK_OBJECT( recbox.rectangle ), "y2", h - 1, NULL);
 129         }
 130
 131         return 0;
 132 }
 133
 134 int
 135 StreamView::set_samples_per_unit (gdouble spp)
 136 {
 137         AudioRegionViewList::iterator i;
 138
 139         if (spp < 1.0) {
 140                 return -1;
 141         }
 142
 143         _samples_per_unit = spp;
 144
 145         for (i = region_views.begin(); i != region_views.end(); ++i) {
 146                 (*i)->set_samples_per_unit (spp);
 147         }
 148
 149         for (CrossfadeViewList::iterator xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 150                 (*xi)->set_samples_per_unit (spp);
 151         }
 152
 153         for (vector<RecBoxInfo>::iterator xi = rec_rects.begin(); xi != rec_rects.end(); ++xi) {
 154                 RecBoxInfo &recbox = (*xi);
 155
 156                 gdouble xstart = _trackview.editor.frame_to_pixel ( recbox.start );
 157                 gdouble xend = _trackview.editor.frame_to_pixel ( recbox.start + recbox.length );
 158
 159                 gtk_canvas_item_set (recbox.rectangle, "x1", xstart, NULL);
 160                 gtk_canvas_item_set (recbox.rectangle, "x2", xend, NULL);
 161         }
 162
 163         return 0;
 164 }
 165
 166 int
 167 StreamView::set_amplitude_above_axis (gdouble app)
 168
 169 {
 170         AudioRegionViewList::iterator i;
 171
 172         if (app < 1.0) {
 173                 return -1;
 174         }
 175
 176         _amplitude_above_axis = app;
 177
 178         for (i = region_views.begin(); i != region_views.end(); ++i) {
 179                 (*i)->set_amplitude_above_axis (app);
 180         }
 181
 182         return 0;
 183 }
 184
 185 void
 186 StreamView::add_region_view (Region *r)
 187 {
 188         add_region_view_internal (r, true);
 189 }
 190
 191 void
 192 StreamView::add_region_view_internal (Region *r, bool wait_for_waves)
 193 {
 194         ENSURE_GUI_THREAD (bind (slot (*this, &StreamView::add_region_view), r));
 195
 196         AudioRegion* region = dynamic_cast<AudioRegion*> (r);
 197
 198         if (region == 0) {
 199                 return;
 200         }
 201
 202         AudioRegionView *region_view;
 203         list<AudioRegionView *>::iterator i;
 204
 205         for (i = region_views.begin(); i != region_views.end(); ++i) {
 206                 if (&(*i)->region == region) {
 207
 208                         /* great. we already have a AudioRegionView for this Region. use it again.
 209                          */
 210
 211                         (*i)->set_valid (true);
 212                         return;
 213                 }
 214         }
 215
 216         region_view = new AudioRegionView (GTK_CANVAS_GROUP(canvas_group),
 217                                            _trackview,
 218                                            *region,
 219                                            _samples_per_unit,
 220                                            _amplitude_above_axis,
 221                                            region_color,
 222                                            wait_for_waves);
 223
 224         region_views.push_front (region_view);
 225
 226         /* follow global waveform setting */
 227
 228         region_view->set_waveform_visible(_trackview.editor.show_waveforms());
 229
 230         /* catch regionview going away */
 231
 232         region->GoingAway.connect (slot (*this, &StreamView::remove_region_view));
 233
 234         AudioRegionViewAdded (region_view);
 235 }
 236
 237 void
 238 StreamView::remove_region_view (Region *r)
 239 {
 240         ENSURE_GUI_THREAD (bind (slot (*this, &StreamView::remove_region_view), r));
 241
 242         AudioRegion* ar = dynamic_cast<AudioRegion*> (r);
 243
 244         if (ar == 0) {
 245                 return;
 246         }
 247
 248         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 249                 if (&((*i)->region) == ar) {
 250                         delete *i;
 251                         region_views.erase (i);
 252                         break;
 253                 }
 254         }
 255
 256         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
 257                 list<CrossfadeView*>::iterator tmp;
 258
 259                 tmp = i;
 260                 ++tmp;
 261
 262                 if ((*i)->crossfade.involves (*ar)) {
 263                         delete *i;
 264                         crossfade_views.erase (i);
 265                 }
 266
 267                 i = tmp;
 268         }
 269 }
 270
 271 void
 272 StreamView::remove_rec_region (Region *r)
 273 {
 274         ENSURE_GUI_THREAD(bind (slot (*this, &StreamView::remove_rec_region), r));
 275
 276         if (!Gtkmmext::UI::instance()->caller_is_gui_thread()) {
 277                 fatal << "region deleted from non-GUI thread!" << endmsg;
 278                 /*NOTREACHED*/
 279         }
 280
 281         AudioRegion* ar = dynamic_cast<AudioRegion*> (r);
 282
 283         if (ar == 0) {
 284                 return;
 285         }
 286
 287         for (list<AudioRegion *>::iterator i = rec_regions.begin(); i != rec_regions.end(); ++i) {
 288                 if (*i == ar) {
 289                         rec_regions.erase (i);
 290                         break;
 291                 }
 292         }
 293 }
 294
 295 void
 296 StreamView::undisplay_diskstream ()
 297 {
 298         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 299                 delete *i;
 300         }
 301
 302         for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 303                 delete *i;
 304         }
 305
 306         region_views.clear();
 307         crossfade_views.clear ();
 308 }
 309
 310 void
 311 StreamView::display_diskstream (DiskStream *ds)
 312 {
 313         playlist_change_connection.disconnect();
 314         playlist_changed (ds);
 315         playlist_change_connection = ds->PlaylistChanged.connect (bind (slot (*this, &StreamView::playlist_changed), ds));
 316 }
 317
 318 void
 319 StreamView::playlist_modified ()
 320 {
 321         ENSURE_GUI_THREAD (slot (*this, &StreamView::playlist_modified));
 322
 323         /* if the playlist is modified, make sure xfades are on top and all the regionviews are stacked
 324            correctly.
 325         */
 326
 327         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 328                 region_layered (*i);
 329         }
 330
 331         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 332                 gtk_canvas_item_raise_to_top ((*i)->get_canvas_group());
 333         }
 334 }
 335
 336 void
 337 StreamView::playlist_changed (DiskStream *ds)
 338 {
 339         ENSURE_GUI_THREAD (bind (slot (*this, &StreamView::playlist_changed), ds));
 340
 341         /* disconnect from old playlist */
 342
 343         for (vector<SigC::Connection>::iterator i = playlist_connections.begin(); i != playlist_connections.end(); ++i) {
 344                 (*i).disconnect();
 345         }
 346
 347         playlist_connections.clear();
 348         undisplay_diskstream ();
 349
 350         /* draw it */
 351
 352         redisplay_diskstream ();
 353
 354         /* catch changes */
 355
 356         playlist_connections.push_back (ds->playlist()->RegionAdded.connect (slot (*this, &StreamView::add_region_view)));
 357         playlist_connections.push_back (ds->playlist()->RegionRemoved.connect (slot (*this, &StreamView::remove_region_view)));
 358         playlist_connections.push_back (ds->playlist()->StateChanged.connect (slot (*this, &StreamView::playlist_state_changed)));
 359         playlist_connections.push_back (ds->playlist()->Modified.connect (slot (*this, &StreamView::playlist_modified)));
 360         playlist_connections.push_back (ds->playlist()->NewCrossfade.connect (slot (*this, &StreamView::add_crossfade)));
 361 }
 362
 363 void
 364 StreamView::add_crossfade (Crossfade *crossfade)
 365 {
 366         AudioRegionView* lview = 0;
 367         AudioRegionView* rview = 0;
 368
 369         ENSURE_GUI_THREAD (bind (slot (*this, &StreamView::add_crossfade), crossfade));
 370
 371         /* first see if we already have a CrossfadeView for this Crossfade */
 372
 373         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 374                 if (&(*i)->crossfade == crossfade) {
 375                         if (!crossfades_visible) {
 376                                 (*i)->hide();
 377                         } else {
 378                                 (*i)->show ();
 379                         }
 380                         (*i)->set_valid (true);
 381                         return;
 382                 }
 383         }
 384
 385         /* create a new one */
 386
 387         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 388                 if (!lview && &((*i)->region) == &crossfade->out()) {
 389                         lview = *i;
 390                 }
 391                 if (!rview && &((*i)->region) == &crossfade->in()) {
 392                         rview = *i;
 393                 }
 394         }
 395
 396         CrossfadeView *cv = new CrossfadeView (GTK_CANVAS_GROUP(_trackview.canvas_display),
 397                                                _trackview,
 398                                                *crossfade,
 399                                                _samples_per_unit,
 400                                                region_color,
 401                                                *lview, *rview);
 402
 403         crossfade->Invalidated.connect (slot (*this, &StreamView::remove_crossfade));
 404         crossfade_views.push_back (cv);
 405
 406         if (!crossfades_visible) {
 407                 cv->hide ();
 408         }
 409 }
 410
 411 void
 412 StreamView::remove_crossfade (Crossfade *xfade)
 413 {
 414         ENSURE_GUI_THREAD (bind (slot (*this, &StreamView::remove_crossfade), xfade));
 415
 416         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 417                 if (&(*i)->crossfade == xfade) {
 418                         delete *i;
 419                         crossfade_views.erase (i);
 420                         break;
 421                 }
 422         }
 423 }
 424
 425 void
 426 StreamView::playlist_state_changed (Change ignored)
 427 {
 428         ENSURE_GUI_THREAD (bind (slot (*this, &StreamView::playlist_state_changed), ignored));
 429
 430         redisplay_diskstream ();
 431 }
 432
 433 void
 434 StreamView::redisplay_diskstream ()
 435 {
 436         list<AudioRegionView *>::iterator i, tmp;
 437         list<CrossfadeView*>::iterator xi, tmpx;
 438
 439         for (i = region_views.begin(); i != region_views.end(); ++i) {
 440                 (*i)->set_valid (false);
 441         }
 442
 443         for (xi = crossfade_views.begin(); xi != crossfade_views.end(); ++xi) {
 444                 (*xi)->set_valid (false);
 445                 if ((*xi)->visible()) {
 446                         (*xi)->show ();
 447                 }
 448         }
 449
 450         if (_trackview.is_audio_track()) {
 451                 _trackview.get_diskstream()->playlist()->foreach_region (this, &StreamView::add_region_view);
 452                 _trackview.get_diskstream()->playlist()->foreach_crossfade (this, &StreamView::add_crossfade);
 453         }
 454
 455         for (i = region_views.begin(); i != region_views.end(); ) {
 456                 tmp = i;
 457                 tmp++;
 458
 459                 if (!(*i)->is_valid()) {
 460                         delete *i;
 461                         region_views.erase (i);
 462                 }
 463
 464                 i = tmp;
 465         }
 466
 467         for (xi = crossfade_views.begin(); xi != crossfade_views.end();) {
 468                 tmpx = xi;
 469                 tmpx++;
 470
 471                 if (!(*xi)->valid()) {
 472                         delete *xi;
 473                         crossfade_views.erase (xi);
 474                 }
 475
 476                 xi = tmpx;
 477         }
 478
 479         /* now fix layering */
 480
 481         playlist_modified ();
 482 }
 483
 484 void
 485 StreamView::diskstream_changed (void *src_ignored)
 486 {
 487         AudioTrack *at;
 488
 489         if ((at = _trackview.audio_track()) != 0) {
 490                 DiskStream& ds = at->disk_stream();
 491                 /* XXX grrr: when will SigC++ allow me to bind references? */
 492                 Gtkmmext::UI::instance()->call_slot (bind (slot (*this, &StreamView::display_diskstream), &ds));
 493         } else {
 494                 Gtkmmext::UI::instance()->call_slot (slot (*this, &StreamView::undisplay_diskstream));
 495         }
 496 }
 497
 498 void
 499 StreamView::apply_color (GdkColor& color, ColorTarget target)
 500
 501 {
 502         list<AudioRegionView *>::iterator i;
 503
 504         switch (target) {
 505         case RegionColor:
 506                 region_color = color;
 507                 for (i = region_views.begin(); i != region_views.end(); ++i) {
 508                         (*i)->set_color (region_color);
 509                 }
 510                 // stream_base_color = RGBA_TO_UINT (color.red/256, color.green/256, color.blue/256, 255);
 511                 // gtk_canvas_item_set (canvas_rect, "fill_color_rgba", stream_base_color, NULL);
 512                 break;
 513
 514         case StreamBaseColor:
 515                 // stream_base_color = RGBA_TO_UINT (color.red/256, color.green/256, color.blue/256, 255);
 516                 // gtk_canvas_item_set (canvas_rect, "fill_color_rgba", stream_base_color, NULL);
 517                 break;
 518         }
 519 }
 520
 521 void
 522 StreamView::set_show_waveforms (bool yn)
 523 {
 524         for (list<AudioRegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 525                         (*i)->set_waveform_visible (yn);
 526         }
 527 }
 528
 529 void
 530 StreamView::set_selected_regionviews (AudioRegionSelection& regions)
 531 {
 532         bool selected;
 533
 534         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 535
 536                 selected = false;
 537
 538                 for (AudioRegionSelection::iterator ii = regions.begin(); ii != regions.end(); ++ii) {
 539                         if (*i == *ii) {
 540                                 selected = true;
 541                         }
 542                 }
 543
 544                 (*i)->set_selected (selected, this);
 545         }
 546 }
 547
 548 void
 549 StreamView::get_selectables (jack_nframes_t start, jack_nframes_t end, list<Selectable*>& results)
 550 {
 551         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 552                 if ((*i)->region.coverage(start, end) != OverlapNone) {
 553                         results.push_back (*i);
 554                 }
 555         }
 556 }
 557
 558 void
 559 StreamView::get_inverted_selectables (Selection& sel, list<Selectable*>& results)
 560 {
 561         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 562                 if (!sel.audio_regions.contains (*i)) {
 563                         results.push_back (*i);
 564                 }
 565         }
 566 }
 567
 568 void
 569 StreamView::set_waveform_shape (WaveformShape shape)
 570 {
 571         for (AudioRegionViewList::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 572                 (*i)->set_waveform_shape (shape);
 573         }
 574 }
 575
 576 void
 577 StreamView::region_layered (AudioRegionView* rv)
 578 {
 579         gtk_canvas_item_lower_to_bottom (rv->get_canvas_group());
 580
 581         /* don't ever leave it at the bottom, since then it doesn't
 582            get events - the  parent group does instead ...
 583         */
 584
 585         gtk_canvas_item_raise (rv->get_canvas_group(), rv->region.layer() + 1);
 586 }
 587
 588 void
 589 StreamView::rec_enable_changed (void *src)
 590 {
 591         Gtkmmext::UI::instance()->call_slot (slot (*this, &StreamView::setup_rec_box));
 592 }
 593
 594 void
 595 StreamView::sess_rec_enable_changed ()
 596 {
 597         Gtkmmext::UI::instance()->call_slot (slot (*this, &StreamView::setup_rec_box));
 598 }
 599
 600 void
 601 StreamView::transport_changed()
 602 {
 603         Gtkmmext::UI::instance()->call_slot (slot (*this, &StreamView::setup_rec_box));
 604 }
 605
 606 void
 607 StreamView::setup_rec_box ()
 608 {
 609         // cerr << _trackview.name() << " streamview SRB\n";
 610
 611         if (_trackview.session().transport_rolling()) {
 612
 613                 // cerr << "\trolling\n";
 614
 615                 if (!rec_active
 616                     && _trackview.session().record_status() == Session::Recording
 617                     && _trackview.get_diskstream()->record_enabled()) {
 618
 619                         if (use_rec_regions && rec_regions.size() == rec_rects.size()) {
 620                                 /* add a new region, but don't bother if they set use_rec_regions mid-record */
 621
 622                                 AudioRegion::SourceList sources;
 623
 624                                 for (list<SigC::Connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 625                                         (*prc).disconnect();
 626                                 }
 627                                 peak_ready_connections.clear();
 628
 629                                 for (uint32_t n=0; n < _trackview.get_diskstream()->n_channels(); ++n) {
 630                                         Source *src = (Source *) _trackview.get_diskstream()->write_source (n);
 631                                         if (src) {
 632                                                 sources.push_back (src);
 633                                                 peak_ready_connections.push_back (src->PeakRangeReady.connect (bind (slot (*this, &StreamView::rec_peak_range_ready), src)));
 634                                         }
 635                                 }
 636
 637                                 // handle multi
 638
 639                                 jack_nframes_t start = 0;
 640                                 if (rec_regions.size() > 0) {
 641                                         start = rec_regions.back()->start() + _trackview.get_diskstream()->get_captured_frames(rec_regions.size()-1);
 642                                 }
 643
 644                                 AudioRegion * region = new AudioRegion(sources, start, 1 , "", 0, (Region::Flag)(Region::DefaultFlags | Region::DoNotSaveState), false);
 645                                 region->set_position (_trackview.session().transport_frame(), this);
 646                                 rec_regions.push_back (region);
 647                                 /* catch it if it goes away */
 648                                 region->GoingAway.connect (slot (*this, &StreamView::remove_rec_region));
 649
 650                                 /* we add the region later */
 651                         }
 652
 653                         /* start a new rec box */
 654
 655                         AudioTrack* at;
 656
 657                         at = _trackview.audio_track(); /* we know what it is already */
 658                         DiskStream& ds = at->disk_stream();
 659                         jack_nframes_t frame_pos = ds.current_capture_start ();
 660                         gdouble xstart = _trackview.editor.frame_to_pixel (frame_pos);
 661                         gdouble xend = xstart;
 662
 663                         GtkCanvasItem * rec_rect = gtk_canvas_item_new (GTK_CANVAS_GROUP(canvas_group),
 664                                                                         gtk_canvas_simplerect_get_type(),
 665                                                                         "x1", xstart,
 666                                                                         "y1", 1.0,
 667                                                                         "x2", xend,
 668                                                                         "y2", (double) _trackview.height - 1,
 669                                                                         "outline_color_rgba", color_map[cRecordingRectOutline],
 670                                                                         "fill_color_rgba",  color_map[cRecordingRectFill],
 671                                                                         NULL);
 672
 673                         RecBoxInfo recbox;
 674                         recbox.rectangle = rec_rect;
 675                         recbox.start = _trackview.session().transport_frame();
 676                         recbox.length = 0;
 677
 678                         rec_rects.push_back (recbox);
 679
 680                         screen_update_connection.disconnect();
 681                         screen_update_connection = ARDOUR_UI::instance()->SuperRapidScreenUpdate.connect (slot (*this, &StreamView::update_rec_box));
 682                         rec_updating = true;
 683                         rec_active = true;
 684
 685                 } else if (rec_active &&
 686                            (_trackview.session().record_status() != Session::Recording ||
 687                             !_trackview.get_diskstream()->record_enabled())) {
 688
 689                         screen_update_connection.disconnect();
 690                         rec_active = false;
 691                         rec_updating = false;
 692
 693                 }
 694
 695         } else {
 696
 697                 // cerr << "\tNOT rolling, rec_rects = " << rec_rects.size() << " rec_regions = " << rec_regions.size() << endl;
 698
 699                 if (!rec_rects.empty() || !rec_regions.empty()) {
 700
 701                         /* disconnect rapid update */
 702                         screen_update_connection.disconnect();
 703
 704                         for (list<SigC::Connection>::iterator prc = peak_ready_connections.begin(); prc != peak_ready_connections.end(); ++prc) {
 705                                 (*prc).disconnect();
 706                         }
 707                         peak_ready_connections.clear();
 708
 709                         rec_updating = false;
 710                         rec_active = false;
 711                         last_rec_peak_frame = 0;
 712
 713                         /* remove temp regions */
 714                         for (list<AudioRegion*>::iterator iter=rec_regions.begin(); iter != rec_regions.end(); )
 715                         {
 716                                 list<AudioRegion*>::iterator tmp;
 717
 718                                 tmp = iter;
 719                                 ++tmp;
 720
 721                                 /* this will trigger the remove_region_view */
 722                                 delete *iter;
 723
 724                                 iter = tmp;
 725                         }
 726
 727                         rec_regions.clear();
 728
 729                         // cerr << "\tclear " << rec_rects.size() << " rec rects\n";
 730
 731
 732                         /* transport stopped, clear boxes */
 733                         for (vector<RecBoxInfo>::iterator iter=rec_rects.begin(); iter != rec_rects.end(); ++iter) {
 734                                 RecBoxInfo &rect = (*iter);
 735                                 gtk_object_destroy (GTK_OBJECT(rect.rectangle));
 736                         }
 737
 738                         rec_rects.clear();
 739
 740                 }
 741         }
 742 }
 743
 744
 745 void
 746 StreamView::update_rec_box ()
 747 {
 748         /* only update the last box */
 749         if (rec_active && rec_rects.size() > 0) {
 750                 RecBoxInfo & rect = rec_rects.back();
 751                 jack_nframes_t at = _trackview.get_diskstream()->current_capture_end();
 752
 753                 rect.length = at - rect.start;
 754
 755                 gdouble xstart = _trackview.editor.frame_to_pixel ( rect.start );
 756                 gdouble xend = _trackview.editor.frame_to_pixel ( at );
 757
 758                 gtk_canvas_item_set (rect.rectangle, "x1", xstart, NULL);
 759                 gtk_canvas_item_set (rect.rectangle, "x2", xend, NULL);
 760         }
 761 }
 762
 763 AudioRegionView*
 764 StreamView::find_view (const AudioRegion& region)
 765 {
 766         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 767
 768                 if (&(*i)->region == &region) {
 769                         return *i;
 770                 }
 771         }
 772         return 0;
 773 }
 774
 775 void
 776 StreamView::foreach_regionview (SigC::Slot1<void,AudioRegionView*> slot)
 777 {
 778         for (list<AudioRegionView*>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
 779                 slot (*i);
 780         }
 781 }
 782
 783 void
 784 StreamView::foreach_crossfadeview (void (CrossfadeView::*pmf)(void))
 785 {
 786         for (list<CrossfadeView*>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 787                 ((*i)->*pmf) ();
 788         }
 789 }
 790
 791 void
 792 StreamView::rec_peak_range_ready (jack_nframes_t start, jack_nframes_t cnt, Source * src)
 793 {
 794         // this is called from the peak building thread
 795
 796         ENSURE_GUI_THREAD(bind (slot (*this, &StreamView::rec_peak_range_ready), start, cnt, src));
 797
 798         if (rec_peak_ready_map.size() == 0 || start+cnt > last_rec_peak_frame) {
 799                 last_rec_peak_frame = start + cnt;
 800         }
 801
 802         rec_peak_ready_map[src] = true;
 803
 804         if (rec_peak_ready_map.size() == _trackview.get_diskstream()->n_channels()) {
 805                 this->update_rec_regions ();
 806                 rec_peak_ready_map.clear();
 807         }
 808 }
 809
 810 void
 811 StreamView::update_rec_regions ()
 812 {
 813         if (use_rec_regions) {
 814
 815                 uint32_t n = 0;
 816
 817                 for (list<AudioRegion*>::iterator iter = rec_regions.begin(); iter != rec_regions.end(); n++) {
 818
 819                         list<AudioRegion*>::iterator tmp;
 820
 821                         tmp = iter;
 822                         ++tmp;
 823
 824                         if ((GTK_OBJECT_FLAGS(GTK_OBJECT(rec_rects[n].rectangle)) & GTK_CANVAS_ITEM_VISIBLE) == 0) {
 825                                 /* rect already hidden, this region is done */
 826                                 iter = tmp;
 827                                 continue;
 828                         }
 829
 830                         AudioRegion * region = (*iter);
 831                         jack_nframes_t origlen = region->length();
 832
 833                         if (region == rec_regions.back() && rec_active) {
 834
 835                                 if (last_rec_peak_frame > region->start()) {
 836
 837                                         jack_nframes_t nlen = last_rec_peak_frame - region->start();
 838
 839                                         if (nlen != region->length()) {
 840
 841                                                 region->freeze ();
 842                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 843                                                 region->set_length (nlen, this);
 844                                                 region->thaw ("updated");
 845
 846                                                 if (origlen == 1) {
 847                                                         /* our special initial length */
 848                                                         add_region_view_internal (region, false);
 849                                                 }
 850
 851                                                 /* also update rect */
 852                                                 GtkCanvasItem * rect = rec_rects[n].rectangle;
 853                                                 gdouble xend = _trackview.editor.frame_to_pixel (region->position() + region->length());
 854                                                 gtk_canvas_item_set (rect, "x2", xend, NULL);
 855                                         }
 856                                 }
 857
 858                         } else {
 859
 860                                 jack_nframes_t nlen = _trackview.get_diskstream()->get_captured_frames(n);
 861
 862                                 if (nlen != region->length()) {
 863
 864                                         if (region->source(0).length() >= region->start() + nlen) {
 865
 866                                                 region->freeze ();
 867                                                 region->set_position (_trackview.get_diskstream()->get_capture_start_frame(n), this);
 868                                                 region->set_length (nlen, this);
 869                                                 region->thaw ("updated");
 870
 871                                                 if (origlen == 1) {
 872                                                         /* our special initial length */
 873                                                         add_region_view_internal (region, false);
 874                                                 }
 875
 876                                                 /* also hide rect */
 877                                                 GtkCanvasItem * rect = rec_rects[n].rectangle;
 878                                                 gtk_canvas_item_hide (rect);
 879
 880                                         }
 881                                 }
 882                         }
 883
 884                         iter = tmp;
 885                 }
 886         }
 887 }
 888
 889 void
 890 StreamView::show_all_xfades ()
 891 {
 892         foreach_crossfadeview (&CrossfadeView::show);
 893         crossfades_visible = true;
 894 }
 895
 896 void
 897 StreamView::hide_all_xfades ()
 898 {
 899         foreach_crossfadeview (&CrossfadeView::hide);
 900         crossfades_visible = false;
 901 }
 902
 903 void
 904 StreamView::hide_xfades_involving (AudioRegionView& rv)
 905 {
 906         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 907                 if ((*i)->crossfade.involves (rv.region)) {
 908                         (*i)->fake_hide ();
 909                 }
 910         }
 911 }
 912
 913 void
 914 StreamView::reveal_xfades_involving (AudioRegionView& rv)
 915 {
 916         for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
 917                 if ((*i)->crossfade.involves (rv.region) && (*i)->visible()) {
 918                         (*i)->show ();
 919                 }
 920         }
 921 }