public boolean getRenderAsPercentages() {
        return this.renderAsPercentages;   
    }
    
    /**
     * Sets the flag that controls whether the renderer displays each item
     * value as a percentage (so that the stacked bars add to 100%), and sends
     * a {@link RendererChangeEvent} to all registered listeners.
     * 
     * @param asPercentages  the flag.
     * 
     * @see #getRenderAsPercentages()
     * 
     * @since 1.0.5
     */
    public void setRenderAsPercentages(boolean asPercentages) {
        this.renderAsPercentages = asPercentages; 
        fireChangeEvent();