public void validate() {
synchronized (treeLock) {
if ((flags & (IS_VALID | IS_ADD_NOTIFIED)) == IS_ADD_NOTIFIED) {
// we have to descent before validating ourself
validateTree();
flags |= IS_VALID;
}
}
}
public void paint(Graphics g) {
// standard JDK behavior is to paint last added childs first, simulating
// a first-to-last z order
validateTree();
for (int i = nChildren - 1; i >= 0; i--) {
Component c = children[i];
if ((c.flags & IS_VISIBLE) != 0) {
g.paintChild(c, (flags & IS_IN_UPDATE) != 0);
}
}
}