Remove empty MIDI regions which result from recordings made when no MIDI data is received.

git-svn-id: svn://localhost/ardour2/branches/3.0@7167 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 19 insertions, 0 deletions

diff --git a/libs/ardour/playlist.cc b/libs/ardour/playlist.cc
index 7c9ac93c3c..1d506dcee7 100644
--- a/libs/ardour/playlist.cc
+++ b/libs/ardour/playlist.cc
@@ -2939,3 +2939,22 @@ Playlist::has_region_at (framepos_t const p) const
 
 	return (i != regions.end());
 }
+
+/** Remove any region that uses a given source */
+void
+Playlist::remove_region_by_source (boost::shared_ptr<Source> s)
+{
+	RegionLock rl (this);
+	
+	RegionList::iterator i = regions.begin();
+	while (i != regions.end()) {
+		RegionList::iterator j = i;
+		++j;
+		
+		if ((*i)->uses_source (s)) {
+			remove_region_internal (*i);
+		}
+
+		i = j;
+	}
+}