public function format(Node $node, Document $document)
{
if (!$node instanceof Page) {
throw new InvalidArgumentException('ElasticPageFormatter works only with PHPPdf\\Core\\Node\\Page class.');
}
$lastChild = null;
foreach ($node->getChildren() as $child) {
if (!$lastChild || $lastChild->getDiagonalPoint()->getY() - $lastChild->getMarginBottom() > $child->getDiagonalPoint()->getY() - $child->getMarginBottom()) {
$lastChild = $child;
}
}
$lastNodeYCoord = $lastChild ? $lastChild->getDiagonalPoint()->getY() - $lastChild->getMarginBottom() : $node->getRealHeight();
$height = $node->getRealHeight() - $lastNodeYCoord + $node->getMarginBottom();
$translate = $node->getRealHeight() - $height;
$node->setPageSize($node->getRealWidth(), $height);
foreach ($node->getChildren() as $child) {
$child->translate(0, $translate);
}
$node->removeGraphicsContext();
}