public function getHashCode()
{
$hashElements = '';
foreach ($this->richTextParagraphs as $element) {
$hashElements .= $element->getHashCode();
}
return md5($hashElements . $this->wrap . $this->autoFit . $this->horizontalOverflow . $this->verticalOverflow . ($this->upright ? '1' : '0') . ($this->vertical ? '1' : '0') . $this->columns . $this->bottomInset . $this->leftInset . $this->rightInset . $this->topInset . parent::getHashCode() . __CLASS__);
}