vispolygonoffset.h

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#pragma once

/*+
________________________________________________________________________

 (C) dGB Beheer B.V.; (LICENSE) http://opendtect.org/OpendTect_license.txt
 Author:        Kris Tingdahl
 Date:          June 2006
________________________________________________________________________


-*/

#include "visnodestate.h"

namespace osg { class PolygonOffset; }

namespace visBase
{
mExpClass(visBase) PolygonOffset : public NodeState
{
public:
                                PolygonOffset();

    void                        setFactor(float);
    float                       getFactor() const;

    void                        setUnits(float);
    float                       getUnits() const;
    enum                        Mode
                                { Off=0,On=1,Override=2,Protected=4,Inherit=8 };
    void                        setMode(unsigned int);
    osg::PolygonOffset*         osgPolygonOffset() { return offset_; }
    unsigned int                getMode() {return mode_; }

protected:
                                ~PolygonOffset();

    osg::PolygonOffset*         offset_;
    unsigned int                mode_;

private:
    void                        applyAttribute(
                                osg::StateSet*, osg::StateAttribute*);

};

};