cbvsreadmgr.h

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#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:           $Id$
________________________________________________________________________

-*/

#include "generalmod.h"
#include "cbvsio.h"
#include "cbvsinfo.h"
#include "datainterp.h"
class CBVSInfo;
class CBVSReader;
class TraceData;
class TrcKeyZSampling;
class od_ostream;


mExpClass(General) CBVSReadMgr : public CBVSIOMgr
{
public:

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

    const CBVSInfo&     info() const            { return info_; }
    int                 bytesOverheadPerTrace() const;
    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);
    bool                fetch(TraceData&,const bool* comps=0,
                                const Interval<int>* samps=0);

    static const char*  check(const char*);

    int                 nrComponents() const;
    const BinID&        binID() const;
    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 TrcKeyZSampling&);

    void                dumpInfo(od_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_;
    int                 rdr1firstsampnr_;

    bool                addReader(od_istream*,const TrcKeyZSampling*,bool,bool);
    bool                addReader(const char*,const TrcKeyZSampling*,bool,bool);
    int                 nextRdrNr(int) const;
    const char*         errMsg_() const;

private:

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

};


#endif