toolTip.showAt(event.getClientX() + toolTipConfig.getMouseOffset()[0],
event.getClientY() + toolTipConfig.getMouseOffset()[1]);
}
LegendItem<M> legendItem = items.get(item);
legendItem.onMouseMove();
ensureHandlers().fireEvent(new LegendItemOverEvent(item, legendItem, event));
}
lastLegendItem = item;
return item;
} else {
lastLegendItem = -1;