public Guideline GetGuide(Point p, RulerOrientation mode)
{
if (_Guides.Exists(g => (int)g.Info.Orientation == (int)mode && g.HitTest(p)))
{
return(_Guides.First(g => (int)g.Info.Orientation == (int)mode && g.HitTest(p)));
}
return(_Container.CreateGuide(p, mode));
}