private void getSubunits(Renderable node, Set subunits) {
List comps = node.getComponents();
if (comps == null || comps.size() == 0) {
// Treat an empty complex as a subunit. This might not be good.
if (node instanceof Shortcut) subunits.add(((Shortcut) node).getTarget());
else subunits.add(node);
} else {
Node tmp = null;
for (Iterator it = comps.iterator(); it.hasNext(); ) {
tmp = (Node) it.next();
getSubunits(tmp, subunits);
}
}
}
