frameutils/FrameF.hh

/* -*- mode: c++; c-basic-offset: 4; -*- */
#ifndef FRAMEF_HH
#define FRAMEF_HH

#include "fferrors.hh"
#include <string>
#include <iostream>

class FrameF {
public:

    typedef long long int8_t;

    typedef int       int4_t;

    typedef short     int2_t;


public:
    struct StrHdr {
        long  length;
        short ID;
        int   Instance;
    };

    struct StrLink {
        int2_t ID;
        int4_t Instance;
};

public:
  FrameF(std::istream& in);

  ~FrameF(void);

  //------------------------------------  Accessors
  bool   isOK(void) const;

  short  getID(void) const;

  short  getInstance(void) const;

  int    getLength(void) const;

  int    getPatch(void) const;

  int    getStrucHdrLen(void) const;

  int    getVersion(void) const;

  //------------------------------------  Mutators
  void   ReadHeader(void) throw (BadFile);

  bool   NxStruct(void) throw (BadFile);

  char   getChar(void) throw (BadFile);

  short  getShort(void) throw (BadFile);

  float  getFloat(void) throw (BadFile);

  int    getInt(void) throw (BadFile);

  void   getLink(StrLink& link) throw(BadFile);

  long   getLong(void) throw (BadFile);

  std::string getString(void) throw (BadFile);

  double getDouble(void) throw (BadFile);

  void   resetHeader(void);

  void   Seek(int off, std::ios::seekdir mode);

  void   Skip(int off);
     
private:
  std::istream& mIn;
  bool     mSwap;
  bool     mHeaderOK;
  char     mData[40];
  int      mVersion;
  StrHdr   mSHdr;
  long     mOffset;
  long     mHdrSz;
};

inline int 
FrameF::getVersion(void) const {
    return mVersion;
}

inline int 
FrameF::getPatch(void) const {
    return mData[6];
}

inline bool
FrameF::isOK(void) const {
    return mIn.good();
}

inline short
FrameF::getID(void) const {
    return mSHdr.ID;
}

inline short 
FrameF::getInstance(void) const {
    return mSHdr.Instance;
}

inline int
FrameF::getLength(void) const {
    return mSHdr.length;
}

inline int
FrameF::getStrucHdrLen(void) const {
    return mHdrSz;
}

inline void
FrameF::resetHeader(void) {
    mHeaderOK = false;
}
#endif

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