private void updateFont() {
   Iterator iter = controls.iterator();
   while (iter.hasNext()) {
     Control control = (Control) iter.next();
     control.setFont(font);
   }
   // Force layout
   if (controls.size() > 0) {
     Composite parent = ((Control) controls.get(0)).getParent();
     parent.layout(true, true);
   }
 }