public void Redo()
{
if (RedoList.Count > 0)
{
IUndoableAction act = RedoList.Pop();
act.Redo(this);
OnRedoChanged(RedoChangedEventArgs.Empty);
//UndoList.Clear();
UndoList.Push(act);
OnUndoChanged(UndoChangedEventArgs.Empty);
}
}
public IAction Redo()
{
if (redoStack.Count > 0)
{
IUndoableAction action = null;
while (redoStack.Count > 0)
{
action = redoStack.Pop();
Logger.Log(LOGKEY, "redo action: " + action.ToString());
if (BeforePerformAction != null)
{
var arg = new ActionEventArgs(action, ActionBehavior.Redo);
BeforePerformAction(this, arg);
if (arg.Cancel)
{
break;
}
}
action.Redo();
undoStack.Add(action);
AfterPerformAction?.Invoke(this, new ActionEventArgs(action, ActionBehavior.Redo));
if (!(action is ISerialUndoAction))
{
break;
}
}
return(action);
}
else
{
return(null);
}
}