cbvswriter.h

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#ifndef cbvswriter_h
#define cbvswriter_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        A.H.Bril
 Date:          12-3-2001
 Contents:      Common Binary Volume Storage format writer
 RCS:           $Id$
________________________________________________________________________

-*/

#include "generalmod.h"
#include "cbvsio.h"
#include "cbvsinfo.h"
#include "posinfo.h"
#include "od_ostream.h"

template <class T> class DataInterpreter;
class TraceData;


mExpClass(General) CBVSWriter : public CBVSIO
{
public:

                        CBVSWriter(od_ostream*,const CBVSInfo&,
                                   const PosAuxInfo*,CoordPol cp=InAux);
                        CBVSWriter(od_ostream*,const CBVSWriter&,
                                   const CBVSInfo&);
                        ~CBVSWriter();

    unsigned long       byteThreshold() const   { return thrbytes_; }           
    void                setByteThreshold( unsigned long n )
                            { thrbytes_ = n; }          
    void                forceLineStep( const BinID& stp )
                            { forcedlinestep_ = stp; }
    void                forceNrTrcsPerPos( int nr )
                            { nrtrcsperposn_ = nr; nrtrcsperposn_status_ = 0; }
    void                forceTrailer( bool yn=true )
                            { forcetrailer_ = yn; }

    int                 put(void**,int offs=0);
    int                 put(const TraceData&,int offs=0);
    void                close()                 { doClose( true ); }
    void                ciaoForNow()            { doClose(false); }
    const CBVSInfo::SurvGeom& survGeom() const  { return survgeom_; }
    const PosAuxInfoSelection& auxInfoSel()     { return auxinfosel_; }

protected:

    od_ostream&         strm_;
    unsigned long       thrbytes_;
    int                 auxnrbytes_;
    bool                input_rectnreg_;
    int*                nrbytespersample_;
    BinID               forcedlinestep_;
    bool                forcetrailer_;

    void                writeHdr(const CBVSInfo&);
    void                putAuxInfoSel(unsigned char*) const;
    void                writeComps(const CBVSInfo&);
    void                writeGeom();
    void                doClose(bool);

    void                getRealGeometry();
    bool                writeTrailer();


private:

    od_stream::Pos      geomsp_; 
    int                 trcswritten_;
    BinID               prevbinid_;
    bool                file_lastinl_;
    int                 nrtrcsperposn_;
    int                 nrtrcsperposn_status_;
    int                 checknrtrcsperposn_;
    PosAuxInfoSelection auxinfosel_;
    CBVSInfo::SurvGeom  survgeom_;

    const PosAuxInfo*   auxinfo_;

    void                init(const CBVSInfo&);
    void                getBinID();
    void                newSeg(bool);
    bool                writeAuxInfo();

};


#endif