geomelement.h

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#ifndef geomelement_h
#define geomelement_h

/*+
________________________________________________________________________
(C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
Author:        A.H. Bril
Date:          23-10-1996
Contents:      Ranges
RCS:           $Id$
________________________________________________________________________

-*/

#include "geometrymod.h"
#include "coord.h"
#include "ranges.h"
#include "callback.h"
#include "uistring.h"

typedef od_int64 GeomPosID;

namespace Geometry
{

mExpClass(Geometry) Iterator
{ mODTextTranslationClass(Iterator);
public:
    virtual                     ~Iterator()             {}
    virtual GeomPosID           next()                  = 0;
};


mExpClass(Geometry) Element : public CallBacker
{ mODTextTranslationClass(Element);
public:
                                Element();
    virtual                     ~Element();
    virtual Iterator*           createIterator() const                  = 0;

    virtual void                getPosIDs(TypeSet<GeomPosID>&,
                                          bool noudf=true) const;
    virtual IntervalND<float>   boundingBox(bool approx) const;
    virtual Element*            clone() const                           = 0;
    virtual uiString            errMsg() const;

    virtual Coord3      getPosition(GeomPosID) const                    = 0;
    virtual bool        setPosition(GeomPosID,const Coord3&)            = 0;
    virtual bool        isDefined(GeomPosID) const                      = 0;

    virtual bool        isChanged() const               { return ischanged_; }
    virtual void        resetChangedFlag()              { ischanged_=false; }

    virtual void        trimUndefParts()                {}

    CNotifier<Element,const TypeSet<GeomPosID>*>        movementnotifier;
    CNotifier<Element,const TypeSet<GeomPosID>*>        nrpositionnotifier;

    void                        blockCallBacks(bool yn,bool flush=true);
    bool                        blocksCallBacks() const { return blockcbs_; }

protected:
    bool                        blockcbs_;
    TypeSet<GeomPosID>          nrposchbuffer_;
    TypeSet<GeomPosID>          movementbuffer_;
    void                        triggerMovement(const TypeSet<GeomPosID>&);
    void                        triggerMovement(const GeomPosID&);
    void                        triggerMovement();
    void                        triggerNrPosCh(const TypeSet<GeomPosID>&);
    void                        triggerNrPosCh(const GeomPosID&);
    void                        triggerNrPosCh();
    bool                        ischanged_;

    uiString&                   errmsg();

private:

    Threads::Lock               poschglock_;
    Threads::Lock               movementlock_;
    uiString*                   errmsg_;
};

} // namespace Geometry

#endif