#include <QtCore/qline.h>
#ifndef QLINE_H
class QLineF{
   /* Some contents are skipped to improve readability */
   public: enum IntersectType{
      NoIntersection = 0,
      BoundedIntersection = 1,
      UnboundedIntersection = 2,
   };
   /* ... */
};
#endif // QLINE_H