#ifndef OSG_POINT
#define OSG_POINT 1

#include <osg/Vec3>
#include <osg/StateAttribute>
#include <osg/StateSet>

namespace osg {

/** Point - encapsulates the OpenGL point smmothing and size state.*/
class SG_EXPORT Point : public StateAttribute
{
    public :

        Point();
        virtual Object* clone() const { return new Point(); }
        virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const Point*>(obj)!=NULL; }
        virtual const char* className() const { return "Point"; }

        virtual const Type getType() const { return POINT; }
        
        virtual void setStateSetModes(StateSet& ds,const GLModeValue value) const
        {
            ds.setMode(GL_POINT_SMOOTH,value);
        }

        void setSize(const float size);
        inline const float getSize() const { return _size; }

        void setFadeThresholdSize(const float fadeThresholdSize);
        inline const float getFadeThresholdSize() const { return _fadeThresholdSize; }

        void setDistanceAttenuation(const Vec3& distanceAttenuation);
        inline const Vec3& getDistanceAttenuation() const { return _distanceAttenuation; }

        virtual void apply(State& state) const;

        static void init_GL_EXT();

    protected :

        virtual ~Point();

        float       _size;
        float       _fadeThresholdSize;
        Vec3        _distanceAttenuation;

};

};

#endif