emhorizonztransform.h

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#ifndef emhorizonztransform_h
#define emhorizonztransform_h

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Kristofer Tingdahl
 Date:          April 2006
 RCS:           $Id$
________________________________________________________________________


-*/

#include "earthmodelmod.h"
#include "zaxistransform.h"

namespace EM
{
class Horizon;

mExpClass(EarthModel) HorizonZTransform : public ZAxisTransform
                         , public CallBacker
{ mODTextTranslationClass(HorizonZTransform);
public:
    mDefaultFactoryInstantiation( ZAxisTransform, HorizonZTransform,
                                  "HorizonZTransform", 
                                  toUiString(sFactoryKeyword()));

    static const char*  sKeyHorizonID()         { return "Horizon"; }

                        HorizonZTransform();
    void                setHorizon(const Horizon&);
    void                transformTrc(const TrcKey&,const SamplingData<float>&,
                                  int sz,float* res) const;
    void                transformTrcBack(const TrcKey&,
                                  const SamplingData<float>&,
                                  int sz,float* res) const;
    bool                canTransformSurv(TrcKey::SurvID) const { return true; }

    Interval<float>     getZInterval(bool from) const;
    float               getZIntervalCenter(bool from) const;
    bool                needsVolumeOfInterest() const   { return false; }

    Interval<float>     getDepthRange() const           { return depthrange_; }
    NotifierAccess*     changeNotifier()                { return &change_; }

    void                fillPar(IOPar&) const;
    bool                usePar(const IOPar&);

protected:
                        ~HorizonZTransform();
    void                calculateHorizonRange();
    void                horChangeCB( CallBacker* );
    bool                getTopBottom(const TrcKey&,float&top,float&bot) const;

    const Horizon*      horizon_;
    Interval<float>     depthrange_;
    bool                horchanged_;
    Notifier<HorizonZTransform> change_;

};

} // namespace EM

#endif