(1) remove most uses of MementoCommand for Playlist and Region (2) move frozen state...
[ardour.git] / libs / pbd / pbd / undo.h
index 6340ef04b9e79263f98f1df14e4e693db4b9bbef..6eb9e00056c140bddf6d67981fdbc1057c3a7d3e 100644 (file)
@@ -27,7 +27,7 @@
 #include <sigc++/bind.h>
 #include <sys/time.h>
 
-#include "pbd/scoped_connections.h"
+#include "pbd/signals.h"
 #include "pbd/command.h"
 
 typedef sigc::slot<void> UndoAction;
@@ -106,7 +106,9 @@ class UndoHistory : public PBD::ScopedConnectionList
 
        void set_depth (uint32_t);
 
-       boost::signals2::signal<void()> Changed;
+       PBD::Signal0<void> Changed;
+       PBD::Signal0<void> BeginUndoRedo;
+       PBD::Signal0<void> EndUndoRedo;
        
   private:
        bool _clearing;