Fix crossfade undo using the stateful diff system. Fixes #3257.

git-svn-id: svn://localhost/ardour2/branches/3.0@7694 d708f5d6-7413-0410-9779-e7cbd77b26cf
2010-08-26 01:44:11 +00:00
parent df2fd94919
commit c243a02c99
21 changed files with 225 additions and 72 deletions
--- a/libs/pbd/stateful_diff_command.cc
+++ b/libs/pbd/stateful_diff_command.cc
@@ -118,3 +118,9 @@ StatefulDiffCommand::get_state ()

 	return *node;
 }
+
+bool
+StatefulDiffCommand::empty () const
+{
+	return _changes->empty();
+}