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HxDataPtrFactory.h

/*
 *  Copyright (c) 2000, University of Amsterdam, The Netherlands.
 *  All rights reserved.
 *
 *  Author(s):
 *  Edo Poll                (poll@wins.uva.nl)
 */


#ifndef HxDataPtrFactory_h
#define HxDataPtrFactory_h

#include "HxStd.h"
#include "HxImageSignature.h"

#include <map>

class HxImageData;
class HxDataPtrClone;
class HxDataPtrCreator;

class L_HXIMAGEREP HxDataPtrFactory
{
public:
    static HxDataPtrFactory&    instance();

    const HxDataPtrClone*       makeDataPtr(const HxImageData*) const;
    void                        registerCreator(
                                    HxImageSignature sig,
                                    const HxDataPtrCreator*);

private:
                                HxDataPtrFactory();
                                HxDataPtrFactory(const HxDataPtrFactory&);
    HxDataPtrFactory&           operator=(const HxDataPtrFactory&);

    typedef const HxDataPtrCreator*                     HxDataPtrCreatorPtr;
    typedef std::map<
                HxImageSignature, HxDataPtrCreatorPtr,
                std::less<HxImageSignature> >           Map;
    typedef Map::value_type                             Entry;

#pragma warning (disable : 4251)
    Map                         _map;
#pragma warning (default : 4251)
};

#endif

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