#include <QtGui/qabstractproxymodel.h>
#ifndef QABSTRACTPROXYMODEL_H
#ifndef QT_NO_PROXYMODEL
class QAbstractProxyModel: public QAbstractItemModel{
   /* Some contents are skipped to improve readability */
   public: virtual class QVariant data(class QModelIndex const & proxyIndex, int role = Qt::DisplayRole) const
   /* ... */
};
#endif // QT_NO_PROXYMODEL
#endif // QABSTRACTPROXYMODEL_H