private String getLabel(IBrand b) {
StringBuilder sb = new StringBuilder();
IBrand parent = b.getParent();
while (parent != null) {
sb.append(" ");
parent = parent.getParent();
}
sb.append(b.getName());
return sb.toString();
}
private void addBrand(IBrand b) {
brands.add(b);
for (IBrand c : b.getChildBrands()) addBrand(c);
}