/**
* @return string
*/
public function getControl($onlyPreview = FALSE)
{
if (!$this->isOk()) {
return NULL;
}
$html = Html::el('div');
$html->addClass('preview-image-container');
$html->setHtml(Html::el('img')->src($this->getImageClass()->getLink())->height($this->height)->width($this->width));
return $html . Html::el('div')->setHtml($onlyPreview ? NULL : parent::getControl());
}