Implement 2532: option to show tracks with regions under the playhead.

git-svn-id: svn://localhost/ardour2/branches/3.0@6207 d708f5d6-7413-0410-9779-e7cbd77b26cf

1 files changed, 14 insertions, 0 deletions

diff --git a/libs/ardour/playlist.cc b/libs/ardour/playlist.cc
index aa41bf65d1..bcc4c6061d 100644
--- a/libs/ardour/playlist.cc
+++ b/libs/ardour/playlist.cc
@@ -2521,3 +2521,17 @@ Playlist::set_explicit_relayering (bool e)
 
 	_explicit_relayering = e;
 }
+
+
+bool
+Playlist::has_region_at (nframes64_t const p) const
+{
+	RegionLock (const_cast<Playlist *> (this));
+	
+	RegionList::const_iterator i = regions.begin ();
+	while (i != regions.end() && !(*i)->covers (p)) {
+		++i;
+	}
+
+	return (i != regions.end());
+}