shiftattrib.h

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#ifndef shiftattrib_h
#define shiftattrib_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Kristofer Tingdahl
 Date:          07-10-1999
 RCS:           $Id$
________________________________________________________________________

-*/

#include "attributesmod.h"
#include "attribprovider.h"
#include "binid.h"

namespace Attrib
{

mExpClass(Attributes) Shift : public Provider
{
public:
    static void                 initClass();
                                Shift(Desc&);

    static const char*          attribName()    { return "Shift"; }
    static const char*          posStr()        { return "pos"; }
    static const char*          timeStr()       { return "time"; }
    static const char*          steeringStr()   { return "steering"; }
    void                        initSteering()  { stdPrepSteering(stepout_); }

    void                        prepPriorToBoundsCalc();

    virtual bool                isSingleTrace() const
                                { return !stepout_.inl() && !stepout_.crl(); }

protected:
                                ~Shift() {}
    static Provider*            createInstance(Desc&);
    static void                 updateDesc(Desc&);
    void                        init();

    bool                        allowParallelComputation() const
                                { return false; }

    bool                        getInputOutput(int inp,TypeSet<int>& res) const;
    bool                        getInputData(const BinID&,int zintv);
    bool                        computeData(const DataHolder&,
                                            const BinID& relpos,
                                            int z0,int nrsamples,
                                            int threadid) const;

    const BinID*                reqStepout(int input,int output) const;
    const Interval<float>*      reqZMargin(int input,int output) const;
    const Interval<float>*      desZMargin(int input,int output) const;

    BinID                       pos_;
    float                       time_;
    bool                        dosteer_;
    
    BinID                       stepout_;
    Interval<float>             interval_;
    Interval<float>             desinterval_;
    int                         dataidx_;
    int                         steeridx_;

    const DataHolder*           inputdata_;
    const DataHolder*           steeringdata_;
};

} // namespace Attrib


#endif