private void UpdatePreviewWindow()
{
if (previewWindow == null)
{
return;
}
Point position = SystemMouse.Position - (Vector)beginContentOffset;
if (this.IsComponent)
{
position = SystemMouse.Position - new Vector(10, 10);// new Vector(previewWindow.Width / 2, previewWindow.Height / 2);
}
previewWindow.SetPosition(position);
}