target.addStyleName(containerStyle);
List<Component> list = new ArrayList<Component>(container.getItems());
for (int i = 0; i < list.size(); i++) {
Component c = list.get(i);
if (!c.isRendered()) {
c.addStyleName("x-border-panel");
c.render(target.dom, i);
}
if (enableState) {
BorderLayoutData data = (BorderLayoutData) getLayoutData(c);
Map<String, Object> st = c.getState();