/**
* Paints a customized background.
*
* @param g the <tt>Graphics</tt> object through which we paint
*/
@Override
protected void paintComponent(Graphics g) {
super.paintComponent(g);
g = g.create();
if (!(treeNode instanceof GroupNode) && !isSelected) return;
AntialiasingManager.activateAntialiasing(g);
Graphics2D g2 = (Graphics2D) g;
try {
internalPaintComponent(g2);
} finally {
g.dispose();
}
}
