//C++ header - Open Scene Graph - Copyright (C) 1998-2002 Robert Osfield
//Distributed under the terms of the GNU Library General Public License (LGPL)
//as published by the Free Software Foundation.

#ifndef OSGDB_DOTOSGWRAPPER
#define OSGDB_DOTOSGWRAPPER 1

#include <osg/ref_ptr>
#include <osg/Object>

#include <osgDB/Input>
#include <osgDB/Output>

#include <string>
#include <vector>
//#include <stdlib.h>

namespace osgDB {


/** Wrapper class for specifying read and write functions for extending
  * the .osg file format. */ 
class OSGDB_EXPORT DotOsgWrapper : public osg::Referenced
{
    public:

        typedef std::vector<std::string> Associates;
        typedef bool (*ReadFunc)(osg::Object&,osgDB::Input&);
        typedef bool (*WriteFunc)(const osg::Object&,osgDB::Output&);
        
        enum ReadWriteMode
        {
            READ_AND_WRITE,
            READ_ONLY
        };

        DotOsgWrapper(osg::Object* proto,
                      const std::string& name,
                      const std::string& associates,
                      ReadFunc readFunc,
                      WriteFunc writeFunc,
                      ReadWriteMode readWriteMode=READ_AND_WRITE);
                      

        inline const osg::Object* getPrototype() const { return _prototype.get(); }
        inline const std::string& getName() const      { return _name; }
        inline const Associates& getAssociates() const { return _associates; }
        inline ReadFunc getReadFunc() const            { return _readFunc; }
        inline WriteFunc getWriteFunc() const          { return _writeFunc; }
        inline ReadWriteMode getReadWriteMode() const  { return _readWriteMode; }

    protected:

        /// protected to prevent inappropriate creation of wrappers.
        DotOsgWrapper() {}

        /// protected to prevent inappropriate creation of wrappers.
        DotOsgWrapper(DotOsgWrapper&):osg::Referenced() {}

        /// protected to prevent wrapper being created on stack.
        virtual ~DotOsgWrapper() {}

        osg::ref_ptr<osg::Object>   _prototype;
        
        std::string                 _name;
        Associates                  _associates;
        
        ReadFunc                    _readFunc;
        WriteFunc                   _writeFunc;

        ReadWriteMode               _readWriteMode;
};

}

#endif