cbvsreadmgr.h

#ifndef cbvsreadmgr_h
#define cbvsreadmgr_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H.Bril
 Date:          14-4-2001
 Contents:      Common Binary Volume Storage read manager
 RCS:           $Id: cbvsreadmgr.h,v 1.22 2009-07-22 16:01:15 cvsbert Exp $
________________________________________________________________________

-*/

#include "cbvsio.h"
#include "cbvsinfo.h"
#include "datainterp.h"
#include <iosfwd>
class CBVSReader;
class CBVSInfo;
class CubeSampling;


mClass CBVSReadMgr : public CBVSIOMgr
{
public:

                        CBVSReadMgr(const char*,const CubeSampling* cs=0,
                                    bool single_file=false,
                                    bool glob_info_only=false);
                        ~CBVSReadMgr();

    const CBVSInfo&     info() const            { return info_; }
    void                close();

    BinID               nextBinID() const;
    bool                goTo(const BinID&);
    bool                toNext();
    bool                toStart();

    bool                getAuxInfo(PosAuxInfo&);
    bool                fetch(void**,const bool* comps=0,
                                const Interval<int>* samps=0);

    static const char*  check(const char*);

    int                 nrComponents() const;
    const BinID&        binID() const;
    bool                hasAuxInfo() const              { return haveaux_; }
    void                fetchAuxInfo(bool yn=true);
    void                getIsRev(bool& inl, bool& crl) const;

    const char*         baseFileName() const
                        { return (const char*)basefname_; }

    int                 nrReaders() const
                        { return readers_.size(); }
    const CBVSReader&   reader( int idx ) const
                        { return *readers_[idx]; }
    int                 pruneReaders(const CubeSampling&);

    void                dumpInfo(std::ostream&,bool include_compinfo) const;
    const TypeSet<Coord>& trailerCoords() const;
    void                getPositions(TypeSet<BinID>&) const;
    void                getPositions(TypeSet<Coord>&) const;

protected:

    ObjectSet<CBVSReader> readers_;
    CBVSInfo&           info_;
    bool                vertical_;
    DataInterpreter<int> iinterp;
    DataInterpreter<float> finterp;
    DataInterpreter<double> dinterp;
    int                 rdr1firstsampnr_;

    bool                addReader(std::istream*,const CubeSampling*,bool);
    bool                addReader(const char*,const CubeSampling*,bool);
    int                 nextRdrNr(int) const;
    const char*         errMsg_() const;

    bool                haveaux_;
    std::istream*       auxstrm_;
    int                 auxinlidx_;
    int                 auxcrlidx_;
    ObjectSet<AuxInlInf> auxinlinfs_;
    int                 auxnrbytes_;
    unsigned char       auxflgs_;

    void                getAuxFromFile(PosAuxInfo&);

private:

    void                createInfo();
    bool                handleInfo(CBVSReader*,int);
    void                handleAuxFile();
    void                handleAuxTrailer();

};


#endif