@Override
protected void decorateChild(EditPart child) {
Object childModel = child.getModel();
if (m_layout.isManagedObject(childModel)) {
EditPolicy policy = new AbsoluteLayoutSelectionEditPolicy<WidgetInfo>();
m_oldSelectionPolicies.put(child, child.getEditPolicy(EditPolicy.SELECTION_ROLE));
child.installEditPolicy(EditPolicy.SELECTION_ROLE, policy);
}
}