private Size GetCropSize(string optionValue)
{
var parts = optionValue.Split(new[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
var x = int.Parse(parts[0]);
if (parts.Length == 1)
{
return new Size(x, x);
}
var y = int.Parse(parts[1]);
return new Size(x, y);
}