moving events in canvases and reordering the drum map have

been speeded up by using operation groups.

HOWEVER: there might be bugs, in fact, i may even have messed
         up the whole thing!
use with CAUTION and TEST intensively!

1 files changed, 5 insertions, 1 deletions

diff --git a/muse2/muse/undo.cpp b/muse2/muse/undo.cpp
index ea9ea8d6..2b90e26f 100644
--- a/muse2/muse/undo.cpp
+++ b/muse2/muse/undo.cpp
@@ -203,7 +203,7 @@ void Song::endUndo(int flags)
 
 void Song::applyOperationGroup(Undo& group)
       {
-      //this is a HACK! but it works :)
+      //this is a HACK! but it works :)    (added by flo93)
       redoList->push_back(group);
       redo();
       }
@@ -698,6 +698,10 @@ void Song::doRedo2()
             }
       }
 
+UndoOp::UndoOp()
+{
+}
+
 UndoOp::UndoOp(UndoType type_, int a_, int b_, int c_)
       {
       type = type_;