public void SaveUndoActionStack(DocumentUndoAction undoAction)
{
/*
* var ser = new DataContractSerializer(typeof(DocumentUndoAction));
* using (XmlWriter xw = XmlWriter.Create(Console.Out))
* {
* ser.WriteObject(xw, undoAction);
* }*/
}
public void PushUndoAction(DocumentUndoAction action)
{
// if the action is empty (does not modifies the docuement, skip adding it to the stack
if (action.IsEmptyAction())
{
return;
}
SaveUndoActionStack(action);
if (__UndoActions.Count == 0 || !CanMerge)
{
if (__UndoGroup != null)
{
__UndoGroup.Add(action);
}
else
{
__UndoActions.Push(action);
}
}
else
{
DocumentUndoAction lastAction = __UndoActions.Peek();
if (lastAction.CanMerge(action))
{
lastAction.Merge(action);
}
else
{
if (__UndoGroup != null)
{
__UndoGroup.Add(action);
}
else
{
__UndoActions.Push(action);
}
}
}
CanMerge = true;
__RedoActions.Clear();
DoUndoCountChanged();
}
public void Undo(OutlinerDocument document, TreeListView treeListView)
{
while (__UndoActions.Count > 0)
{
DocumentUndoAction action = __UndoActions.Pop();
action.Undo(document, treeListView);
__RedoActions.Push(action);
DoUndoCountChanged();
if (!action.UndoNext)
{
break;
}
}
GC.Collect();
}
