seisblocksreader.h

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#pragma once

/*
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Bert
 Date:          Apr 2017
________________________________________________________________________

*/

#include "seisblocks.h"
#include "ranges.h"
#include "threadlock.h"
#include "typeset.h"
#include "uistring.h"

class od_istream;
class SeisTrc;
class SeisTrcInfo;
namespace PosInfo { class CubeData; class CubeDataPos; }


namespace Seis
{

class SelData;

namespace Blocks
{

class FileColumn;
class OffsetTable;

mExpClass(Seis) Reader : public IOClass
{ mODTextTranslationClass(Seis::Blocks::Reader);
public:

    typedef PosInfo::CubeData       CubeData;

                        Reader(const char* fnm);    
                        Reader(od_istream&);        
                        ~Reader();

    const uiRetVal&     state() const               { return state_; }

    BufferString        surveyName() const          { return survname_; }
    const CubeData&     positions() const           { return cubedata_; }
    inline int          nrComponents() const
                        { return componentNames().size(); }
    BoolTypeSet&        compSelected()              { return compsel_; }
    bool                depthInFeet() const         { return depthinfeet_; }

    void                setSelData(const SelData*);

    bool                goTo(const BinID&) const;
    uiRetVal            skip(int) const;
    uiRetVal            getTrcInfo(SeisTrcInfo&) const;
    uiRetVal            getNext(SeisTrc&) const;
    uiRetVal            get(const BinID&,SeisTrc&) const;

    void                close(); 

protected:

    typedef PosInfo::CubeDataPos    CubeDataPos;

    mutable od_istream* strm_;
    bool                strmmine_;
    SelData*            seldata_;
    LinScaler*          scaler_;
    DataInterp*         interp_;
    OffsetTable&        offstbl_;
    CubeData&           cubedata_;
    CubeDataPos&        curcdpos_;
    BufferString        survname_;
    bool                depthinfeet_;

    BoolTypeSet         compsel_;
    uiRetVal            state_;
    const Interval<float> zrgintrace_;
    const int           nrcomponentsintrace_;
    mutable bool        lastopwasgetinfo_;

    void                closeStream() const;
    bool                reset(uiRetVal&) const;
    bool                isSelected(const CubeDataPos&) const;
    bool                advancePos(CubeDataPos&) const;
    bool                doGoTo(const BinID&,uiRetVal&) const;
    void                doGet(SeisTrc&,uiRetVal&) const;
    void                fillInfo(const BinID&,SeisTrcInfo&) const;
    FileColumn*         getColumn(const HGlobIdx&,uiRetVal&) const;
    void                readTrace(SeisTrc&,uiRetVal&) const;

    friend class        FileColumn;

private:

    void                initFromFileName(const char*);
    void                readInfoFile(od_istream&);
    bool                getGeneralSectionData(const IOPar&);
    bool                getOffsetSectionData(const IOPar&);

};


} // namespace Blocks

} // namespace Seis