protected function loadSlides()
{
foreach ($this->oXMLReader->getElements('/office:document-content/office:automatic-styles/*') as $oElement) {
if ($oElement->hasAttribute('style:name')) {
$this->loadStyle($oElement);
}
}
foreach ($this->oXMLReader->getElements('/office:document-content/office:body/office:presentation/draw:page') as $oElement) {
if ($oElement->nodeName == 'draw:page') {
$this->loadSlide($oElement);
}
}
}