private void StoreState()
{
var memento = UndoableInkCanvasTest.CreateMemento();
_undoStates.Push(memento);
MementoUndoLabel.Content = _undoStates.Count;
}
private void Undo(object sender, ExecutedRoutedEventArgs executedRoutedEventArgs)
{
if (_undoStates.Count > 1)
{
_redoStates.Push(_undoStates.Pop());
var lastState = _undoStates.Peek();
UndoableInkCanvasTest.SetMemento(lastState);
}
MementoUndoLabel.Content = _undoStates.Count;
MementoRedoLabel.Content = _redoStates.Count;
}