#ifndef OSG_FRONTFACE
#define OSG_FRONTFACE 1

#include <osg/StateAttribute>
#include <osg/GL>

namespace osg {

/** Class to specifies the orientation of front-facing polygons.
*/     
class SG_EXPORT FrontFace : public StateAttribute
{
    public :
    
        FrontFace();
        virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const FrontFace*>(obj)!=0L; }
        virtual Object* clone() const { return new FrontFace(); }
        virtual const char* className() const { return "FrontFace"; }
    
        virtual const Type getType() const { return FRONTFACE; }
        
        enum Mode {
            CLOCKWISE = GL_CW,
            COUNTER_CLOCKWISE = GL_CCW
        };
    
        inline void setMode(const Mode mode) { _mode = mode; }
        inline const Mode getMode() const    { return _mode; }
    
        virtual void apply(State& state) const;
        
    protected:
    
        virtual ~FrontFace();
        
        Mode _mode;

};

};

#endif