public boolean equals(Object obj) {
        
        if (obj == this) {
            return true;
        }
        if (!super.equals(obj)) {
            return false;
        }
        if (!(obj instanceof WaterfallBarRenderer)) {
            return false;
        }
        WaterfallBarRenderer that = (WaterfallBarRenderer) obj;
        if (!PaintUtilities.equal(this.firstBarPaint, that.firstBarPaint)) {
            return false;
        }
        if (!PaintUtilities.equal(this.lastBarPaint, that.lastBarPaint)) {
            return false;
        }             
        if (!PaintUtilities.equal(this.positiveBarPaint, 
                that.positiveBarPaint)) {
            return false;
        }             
        if (!PaintUtilities.equal(this.negativeBarPaint, 
                that.negativeBarPaint)) {
            return false;
        }             
        return true;
        
    }