std::pair<std::list<AudioRegionView*>, std::list<AudioRegionView*> > hide_xfades_with (boost::shared_ptr<ARDOUR::AudioRegion> ar);
RegionView* create_region_view (boost::shared_ptr<ARDOUR::Region>, bool, bool);
std::pair<std::list<AudioRegionView*>, std::list<AudioRegionView*> > hide_xfades_with (boost::shared_ptr<ARDOUR::AudioRegion> ar);
RegionView* create_region_view (boost::shared_ptr<ARDOUR::Region>, bool, bool);