private void AddCopy(InkCanvas inkCanvas)
{
var strokeCollection = new StrokeCollection();
foreach (var selectedStroke in _selectedStrokes)
{
var stroke = selectedStroke.Clone();
strokeCollection.Add(stroke);
inkCanvas.Strokes.Add(stroke);
}
var uiElementCollection = new List <UIElement>();
foreach (UIElement selectedElement in _selectedElements)
{
var element = WPFHelper.Clone(selectedElement, inkCanvas);
if (element == null)
{
continue;
}
uiElementCollection.Add(element);
inkCanvas.Children.Add(element);
InkCanvas.SetLeft(element, InkCanvas.GetLeft(selectedElement));
InkCanvas.SetTop(element, InkCanvas.GetTop(selectedElement));
}
_repetitions.Add(new Tuple <ReadOnlyCollection <UIElement>, StrokeCollection>(new ReadOnlyCollection <UIElement>(uiElementCollection), strokeCollection));
}