segydirectdef.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Bert
 Date:          Jul 2008
________________________________________________________________________

-*/

#include "segyfiledata.h"
#include "bufstringset.h"
#include "executor.h"
#include "od_iosfwd.h"
#include "uistring.h"

class IOObj;
namespace Seis { class PosIndexer; }
namespace PosInfo { class CubeData; class Line2DData; }


namespace SEGY {

class FileSpec;
class Scanner;
class FileDataSet;
class PosKeyList;


mExpClass(Seis) DirectDef
{ mODTextTranslationClass(DirectDef);
public:

                        DirectDef();                    
                        DirectDef(const char*);         
                        ~DirectDef();
    bool                isEmpty() const;

                        //Functions to read/query
    bool                readFromFile(const char*);
    const IOPar*        segyPars() const;
    FixedString         fileName(int idx) const;
    FileDataSet::TrcIdx find(const Seis::PosKey&,bool chkoffs) const;
    FileDataSet::TrcIdx findOcc(const Seis::PosKey&,int occ) const;

                        //Functions to write
    void                setData(FileDataSet&);
    bool                writeHeadersToFile(const char*);
    od_ostream*         getOutputStream()       { return outstream_; }
    bool                writeFootersToFile();
    const FileDataSet&  fileDataSet() const     { return *fds_; }
    uiString            errMsg() const          { return errmsg_; }

    static const char*  sKeyDirectDef();
    static const char*  sKeyFileType();
    static const char*  sKeyNrFiles();
    static const char*  sKeyIOCompr();
    static const char*  sKeyInt64DataChar();
    static const char*  sKeyInt32DataChar();
    static const char*  sKeyFloatDataChar();

    static const char*  get2DFileName(const char*,const char*);
    static const char*  get2DFileName(const char*,Pos::GeomID);

    static bool         readFooter(const char* fnm,IOPar&,od_stream_Pos&);
    static bool         updateFooter(const char*,const IOPar&,od_stream_Pos);
    const PosInfo::CubeData&    cubeData() const { return cubedata_; }
    const PosInfo::Line2DData&  lineData() const { return linedata_; }


protected:
    void                getPosData(PosInfo::CubeData&) const;
    void                getPosData(PosInfo::Line2DData&) const;

    PosInfo::CubeData&   cubedata_;
    PosInfo::Line2DData& linedata_;

    const FileDataSet*  fds_;
    FileDataSet*        myfds_;
    SEGY::PosKeyList*   keylist_;
    Seis::PosIndexer*   indexer_;

    mutable uiString    errmsg_;

    od_ostream*         outstream_;
    od_stream_Pos       offsetstart_;
    od_stream_Pos       datastart_;
    od_stream_Pos       textparstart_;
    od_stream_Pos       cubedatastart_;
    od_stream_Pos       indexstart_;
};


mExpClass(Seis) FileIndexer : public Executor
{ mODTextTranslationClass(FileIndexer);
public:
                        FileIndexer(const DBKey& mid,bool isvol,
                                    const FileSpec&,bool is2d,const IOPar&);
                        ~FileIndexer();

    int                 nextStep();

    uiString            message() const;
    od_int64            nrDone() const;
    od_int64            totalNr() const;
    uiString            nrDoneText() const;

    const Scanner*      scanner() const { return scanner_; }

protected:

    bool                writeStats() const;
    IOObj*              ioobj_;
    Pos::GeomID         geomid_;

    Scanner*            scanner_;
    mutable uiString    msg_;
    DirectDef*          directdef_;
    bool                is2d_;
    bool                isvol_;

};


}; //Namespace