protected void onMouseOut(int index, Event event) {
if (lastLegendItem != -1 && (itemHighlighting || handlerManager != null)) {
LegendItem<M> item = items.get(index);
item.onMouseOut();
ensureHandlers().fireEvent(new LegendItemOutEvent(index, item, event));
lastLegendItem = -1;
}
}