- if (!_trackview.session().deletion_in_progress()) {
-
- for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end();) {
- list<CrossfadeView*>::iterator tmp;
-
- tmp = i;
- ++tmp;
-
- boost::shared_ptr<AudioRegion> ar = boost::dynamic_pointer_cast<AudioRegion>(r);
- if (ar && (*i)->crossfade->involves (ar)) {
- delete *i;
- crossfade_views.erase (i);
- }
-
- i = tmp;
- }
- }
-
- StreamView::remove_region_view(r);
-}
-
-void
-AudioStreamView::undisplay_diskstream ()
-{
- StreamView::undisplay_diskstream();
-
- for (CrossfadeViewList::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
- delete *i;
- }
-
- crossfade_views.clear ();
-}
-
-void
-AudioStreamView::playlist_modified ()
-{
- ENSURE_GUI_THREAD (mem_fun (*this, &AudioStreamView::playlist_modified));
-
- StreamView::playlist_modified();
-
- /* make sure xfades are on top and all the regionviews are stacked correctly. */
-
- for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
- (*i)->get_canvas_group()->raise_to_top();
- }
-}
-
-void
-AudioStreamView::playlist_changed (boost::shared_ptr<Diskstream> ds)
-{
- ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::playlist_changed), ds));
-
- StreamView::playlist_changed(ds);
-
- boost::shared_ptr<AudioPlaylist> apl = boost::dynamic_pointer_cast<AudioPlaylist>(ds->playlist());
- if (apl)
- playlist_connections.push_back (apl->NewCrossfade.connect (mem_fun (*this, &AudioStreamView::add_crossfade)));
-}
-
-void
-AudioStreamView::add_crossfade (boost::shared_ptr<Crossfade> crossfade)
-{
- AudioRegionView* lview = 0;
- AudioRegionView* rview = 0;
-
- ENSURE_GUI_THREAD (bind (mem_fun (*this, &AudioStreamView::add_crossfade), crossfade));
-
- /* first see if we already have a CrossfadeView for this Crossfade */
-
- for (list<CrossfadeView *>::iterator i = crossfade_views.begin(); i != crossfade_views.end(); ++i) {
- if ((*i)->crossfade == crossfade) {
- if (!crossfades_visible) {
- (*i)->hide();
- } else {
- (*i)->show ();
- }
- (*i)->set_valid (true);
- return;
- }
- }
-
- /* create a new one */
-
- for (list<RegionView *>::iterator i = region_views.begin(); i != region_views.end(); ++i) {
- AudioRegionView* arv = dynamic_cast<AudioRegionView*>(*i);
-
- if (!lview && arv && (arv->region() == crossfade->out())) {
- lview = arv;
- }
- if (!rview && arv && (arv->region() == crossfade->in())) {
- rview = arv;
- }
- }
-
- CrossfadeView *cv = new CrossfadeView (_trackview.canvas_display,
- _trackview,
- crossfade,
- _samples_per_unit,
- region_color,
- *lview, *rview);