public void expansionStateChanged(ExpansionEvent e) {
if (!inProgress && e.getSource() instanceof Section) {
inProgress = true;
boolean expand = ((Section) e.getSource()).isExpanded();
for (Section section : sections) {
section.setExpanded(expand);
}
inProgress = false;
}
}
@Override
public void expansionStateChanged(ExpansionEvent e) {
getPreferences().putBoolean(component.ensureUuid(), e.getState());
}