*/
private void attachListeners() {
if (getWidget() != null && layout.getLayoutManager() != null) {
LayoutManager lm = layout.getLayoutManager();
if (getCaptionElement() != null && captionResizeListener != null) {
lm.addElementResizeListener(getCaptionElement(),
captionResizeListener);
}
if (widgetResizeListener != null) {
lm.addElementResizeListener(getWidget().getElement(),
widgetResizeListener);