/**
* Loads background from provided hash.
*
* @param array $hash Background hash
*
* @return BackgroundNode
*/
protected function loadBackgroundHash(array $hash)
{
$background = new Node\BackgroundNode(null, isset($hash['line']) ? $hash['line'] : 0);
$background->setKeyword(isset($hash['keyword']) ? $hash['keyword'] : 'Background');
if (isset($hash['title'])) {
$background->setTitle($hash['title']);
}
if (isset($hash['steps'])) {
foreach ($hash['steps'] as $stepIterator => $stepHash) {
$background->addStep($this->loadStepHash($stepHash, $stepIterator));
}
}
return $background;
}
