virtual GBool axialShadedFill(GfxState *state, GfxAxialShading *shading);
virtual GBool radialShadedFill(GfxState *state, GfxRadialShading *shading);
virtual GBool axialShadedFill(GfxState *state, GfxAxialShading *shading);
virtual GBool radialShadedFill(GfxState *state, GfxRadialShading *shading);