protected function allDrawings()
{
// Get an array of all drawings
$aDrawings = array();
// Loop trough PhpPresentation
foreach ($this->getPhpPresentation()->getAllSlides() as $oSlide) {
$arrayReturn = $this->iterateCollection($oSlide->getShapeCollection()->getIterator());
$aDrawings = array_merge($aDrawings, $arrayReturn);
}
return $aDrawings;
}