protected function normalizeSizeOption(array &$options)
    {
        if (isset($options['size'])) {
            $size = explode('x', $options['size']);
            if (
                isset($size[0]) &&
                isset($size[1]) 
            ) {
                list($options['cols'], $options['rows']) = $size;
            }
            unset($options['size']);
        }
    }