Method renderHeaderColumn

public function renderHeaderColumn($data, &$options)
{
    if ($options['type'] == 'data') {
        return $data;
    }
    $options['count']++;
    $o = array();
    if (isset($data['tool']) && $data['tool'] != '' && isset($data['column']) && $data['column'] != '') {
        $o[] = '<th class="' . $data['class'] . '">' . HTMLHelper::_($data['tool'], $data['title'], $data['column'], $options['listdirn'], $options['listorder']) . '</th>';
    } else {
        $o[] = '<th class="' . $data['class'] . '">' . Text::_($data['title']) . '</th>';
    }
    return implode("\n", $o);
}