#include <QtGui/qdirmodel.h>
#ifndef QDIRMODEL_H
#ifndef QT_NO_DIRMODEL
class QDirModel: public QAbstractItemModel{
   /* Some contents are skipped to improve readability */
   public: enum Roles{
      FileIconRole = 1,
      FilePathRole = 33,
      FileNameRole = 34,
   };
   /* ... */
};
#endif // QT_NO_DIRMODEL
#endif // QDIRMODEL_H