OSGBINWriter.h

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 * This library is free software; you can redistribute it and/or modify it   *
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#ifndef _OSGBINWRITER_H_
#define _OSGBINWRITER_H_
#ifdef __sgi
#pragma once
#endif
#include <OSGConfig.h>

#include <map>
#include <vector>

#include <OSGNode.h>
#include <OSGBinaryDataHandler.h>
#include <OSGBaseTypes.h>

OSG_BEGIN_NAMESPACE

class OSG_SYSTEMLIB_DLLMAPPING BINWriter
{
    /*==========================  PUBLIC  =================================*/
  public:

    /*---------------------------------------------------------------------*/
             BINWriter(std::ostream &os);
    virtual ~BINWriter(void      );

    /*---------------------------------------------------------------------*/
    bool write(            NodePtr  node );
    bool write(std::vector<NodePtr> nodes);

    /*=========================  PROTECTED  ===============================*/
  protected:

    /*---------------------------------------------------------------------*/
    struct FCInfo
    {
         OSG::IDString     type;
         FieldContainerPtr ptr;
         BitVector         mask; //should match UInt32
         FCInfo(void);
    };
    //FieldContainerId is of type UInt32
    typedef std::map<     UInt32,             FCInfo  > FCInfoMap;
    typedef std::map<std::string, std::vector<UInt32> > FCTypeIdMap;

    class BinaryFileHandler : public BinaryDataHandler
    {
      public:
        BinaryFileHandler(std::ostream &os);
        virtual ~BinaryFileHandler();

        void write(MemoryHandle mem, UInt32 size);

      private:

        std::vector<UInt8> _writeMemory;
        std::ostream &_os;

        BinaryFileHandler(const BinaryFileHandler &source);
        void operator =(const BinaryFileHandler &source);
    };
    /*---------------------------------------------------------------------*/
    void addToIdMap      (FieldContainerPtr fcPtr      );
    void writeFileHeader (void                         );
    void doIndexFC       (FieldContainerPtr fieldConPtr);
    void doWriteIndexedFC(void                         );

    /*==========================  PRIVATE  ================================*/
  private:
    /*---------------------------------------------------------------------*/
    FCInfoMap            _fcMap;
    FCTypeIdMap          _fcIdMap;
    BinaryFileHandler    _outFileHandler;
    std::vector<NodePtr> _vec_pRootNodes;
    bool                 _valid_stream;

    BINWriter(const BINWriter &source);
    void operator =(const BINWriter &source);
};

OSG_END_NAMESPACE

#define OSGBINWRITER_HEADER_CVSID "@(#)$Id: $"

#endif /* _OSGBINWRITER_H_ */

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