protected function addAttributesToRender($writer)
{
parent::addAttributesToRender($writer);
if ($this->getHotSpots()->getCount() > 0) {
$writer->addAttribute('usemap', '#' . self::MAP_NAME_PREFIX . $this->getClientID());
$writer->addAttribute('id', $this->getUniqueID());
}
if ($this->getEnabled() && !$this->getEnabled(true)) {
$writer->addAttribute('disabled', 'disabled');
}
}