public function getColumnWidths()
    {
        foreach ($this->columnWidths as $column => $width) {
            if ($width > $this->maxColumnWidth) {
                $this->columnWidths[$column] = $this->maxColumnWidth;
            } elseif ($width < $this->minColumnWidth) {
                $this->columnWidths[$column] = $this->minColumnWidth;
            }
        }

        return $this->columnWidths;
    }