dztimporter.h

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#pragma once
/*
________________________________________________________________________
 
 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Bert
 Date:          Mar 2010
 RCS:           $Id$
________________________________________________________________________
 
*/
 
#include "executor.h"
#include "datainterp.h"
#include "linekey.h"
#include "samplingdata.h"
#include "position.h"
class IOObj;
class SeisTrc;
class SeisTrcInfo;
class SeisTrcWriter;
 
 
namespace DZT
{
 
struct FileHeader
{
    struct Date
    {
        unsigned        sec2:5, min:6, hour:5, day:5, month:4, year:7;
    };
 
                        FileHeader();
 
    mDeprecatedDef bool getFrom(od_istream&,BufferString&);
    bool                getFrom(od_istream&,uiString&);
    inline bool         isOK() const            { return nsamp > 0; }
 
    inline int          traceNr( int trcidx ) const
                        { return nrdef_.atIndex(trcidx); }
    inline int          nrBytesPerSample() const
                        { return bits / 8; }
    inline int          nrBytesPerTrace() const
                        { return nsamp * nrBytesPerSample(); }
    void                fillInfo(SeisTrcInfo&,int trcidx) const;
 
    unsigned short      tag, data, nsamp, bits;
    short               zero;
    float               sps, spm, mpm, position, range;
    Date                created, modified;
    unsigned short      npass, rgain, nrgain, text, ntext, proc, nproc, nchan;
    float               epsr, top, depth;
    char                dtype, antname[14];
    unsigned short      chanmask, chksum;
 
    // Could these be found? Not in all files for sure ...
    SamplingData<int>   nrdef_;
    Coord               cstart_;
    Coord               cstep_;
 
};
 
 
mClass(uiImpGPR) Importer : public ::Executor
{ mODTextTranslationClass(Importer);
public:
 
                        Importer(const char* fnm,const IOObj&,const LineKey&);
                        ~Importer();
 
    uiString            uiMessage() const       { return msg_; }
    uiString            uiNrDoneText() const    { return tr("Traces handled"); }
    od_int64            nrDone() const          { return nrdone_; }
    od_int64            totalNr() const         { return totalnr_; }
 
    int                 nextStep();
 
    FileHeader          fh_;
    float               zfac_;
 
protected:
 
    SeisTrc&            trc_;
    SeisTrcWriter*      wrr_;
    od_istream&         istream_;
    LineKey             lk_;
 
    char*               databuf_;
    DataInterpreter<float> di_;
 
    od_int64            nrdone_;
    od_int64            totalnr_;
    uiString    msg_;
 
    int                 closeAll();
 
};
 
} // namespace DZT