} else { GL.glPolygonMode(GL.GL_FRONT_AND_BACK, GL.GL_LINE); }
}
    public void unset() {        if (isEnabled()) {                GL.glPolygonMode(GL.GL_FRONT_AND_BACK, GL.GL_FILL);        } else {                GL.glPolygonMode(GL.GL_FRONT_AND_BACK, GL.GL_LINE);        }    }