#ifndef OSG_TEXENV
#define OSG_TEXENV 1

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

namespace osg {

/** TexEnv - encapsulates the OpenGL glTexEnv (texture environment) state.*/
class SG_EXPORT TexEnv : public StateAttribute
{
    public :

        TexEnv( void );
        virtual Object* clone() const { return new TexEnv(); }
        virtual bool isSameKindAs(const Object* obj) const { return dynamic_cast<const TexEnv*>(obj)!=0L; }
        virtual const char* className() const { return "TexEnv"; }

        virtual const Type getType() const { return TEXENV; }

        enum Mode {
            DECAL     = GL_DECAL,
            MODULATE  = GL_MODULATE,
            BLEND     = GL_BLEND,
            REPLACE   = GL_REPLACE
        };

        void setMode( const Mode mode );
        
        const Mode getMode() const { return _mode; }
        
        virtual void apply(State& state) const;

    protected :

        virtual ~TexEnv( void );

        Mode _mode;
};

};

#endif