logic to copy audio region fade in/fade out into compound regions (one-way for now)

git-svn-id: svn://localhost/ardour2/branches/3.0@9588 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 43 insertions, 0 deletions

diff --git a/libs/ardour/audio_playlist.cc b/libs/ardour/audio_playlist.cc
index ebff10f49e..f73bbf17e5 100644
--- a/libs/ardour/audio_playlist.cc
+++ b/libs/ardour/audio_playlist.cc
@@ -27,6 +27,7 @@
 #include "ardour/audioplaylist.h"
 #include "ardour/audioregion.h"
 #include "ardour/crossfade.h"
+#include "ardour/region_sorters.h"
 #include "ardour/session.h"
 #include "pbd/enumwriter.h"
 
@@ -1080,3 +1081,45 @@ AudioPlaylist::copy_dependents (const vector<TwoRegions>& old_and_new, boost::sh
 		other_audio->add_crossfade (new_xfade);
 	}
 }
+
+void
+AudioPlaylist::pre_combine (vector<boost::shared_ptr<Region> >& originals, boost::shared_ptr<Region> compound_region)
+{
+	/* sort the originals into time order */
+
+	RegionSortByPosition cmp;
+	boost::shared_ptr<AudioRegion> ar;
+	boost::shared_ptr<AudioRegion> cr;
+
+	if ((cr = boost::dynamic_pointer_cast<AudioRegion> (compound_region)) == 0) {
+		return;
+	}
+
+	sort (originals.begin(), originals.end(), cmp);
+
+	ar = boost::dynamic_pointer_cast<AudioRegion> (originals.front());
+
+	/* copy the fade in of the first into the compound region */
+
+	if (ar) {
+		cr->set_fade_in (ar->fade_in());
+		
+		/* disable the fade in of the first */
+		
+		ar->set_fade_in_active (false);
+	}
+
+	ar = boost::dynamic_pointer_cast<AudioRegion> (originals.front());
+
+	if (ar) {
+		/* copy the fade out of the last into the compound region */
+		cr->set_fade_out (ar->fade_out());
+		/* disable the fade out of the first */
+		ar->set_fade_out_active (false);
+	}
+}
+
+void
+AudioPlaylist::pre_uncombine (vector<boost::shared_ptr<Region> >& originals, boost::shared_ptr<Region> compound_region)
+{
+}