@Override
public void removeLayoutComponent(Component comp) {
if (comp instanceof JRibbon) {
throw new IllegalArgumentException("Can't remove JRibbon component");
}
super.removeLayoutComponent(comp);
}
@Override
public void addLayoutComponent(Component comp, Object constraints) {
if ((constraints != null) && constraints.equals(BorderLayout.NORTH)) {
if (getLayoutComponent(BorderLayout.NORTH) != null) {
throw new IllegalArgumentException("Already has a NORTH JRibbon component");
}
if (!(comp instanceof JRibbon)) {
throw new IllegalArgumentException("Can't add non-JRibbon component to NORTH location");
}
}
super.addLayoutComponent(comp, constraints);
}