786             result |= not buffer.IsCurrentSaved()

   786             result |= not buffer.IsCurrentSaved()

   787         return result

   787         return result

   788 

   788 

   789     def GetBufferNumber(self):

   789     def GetBufferNumber(self):

   790         return len(self.UndoBuffers)

   790         return len(self.UndoBuffers)

   791 

   794 

   792     def LoadCurrentPrevious(self):

   795     def LoadCurrentPrevious(self):

   793         self.CurrentNode = self.UndoBuffers[self.NodeIndex].Previous().Copy()

   796         self.CurrentNode = self.UndoBuffers[self.NodeIndex].Previous().Copy()

   794     

   797     

   795     def LoadCurrentNext(self):

   798     def LoadCurrentNext(self):