#ifndef OSG_INPUT
#define OSG_INPUT 1

#include <osg/FieldReaderIterator>

#include <map>
#include <string>

namespace osg {

class Object;
class Image;
class Node;

/** Class for managing the reading of ASCII .osg files.*/
class SG_EXPORT Input : public FieldReaderIterator
{
    public:

// Will extend to handle #DEF and use
// functionality similar to Inventor,
// and add the ability to handle #include
// from within the OSG file format.

        Input();
        virtual ~Input();

        virtual Object* readObject();
        virtual Object* readObject(const std::string& fileName);

        virtual Image*  readImage();
        virtual Image*  readImage(const std::string& fileName);

        virtual Node* readNode();
        virtual Node* readNode(const std::string& fileName);
        
        virtual Object* getObjectForUniqueID(const std::string& uniqueID);
        virtual void regisiterUniqueIDForObject(const std::string& uniqueID,Object* obj);

    private:
    
        typedef std::map<std::string,Object*> UniqueIDToObjectMapping;
        UniqueIDToObjectMapping _uniqueIDToObjectMap;

};

};

#endif                                            // __SG_INPUT_H