public function format(Node $node, Document $document)
{
$node->makeAttributesSnapshot(array('height', 'width'));
$boundary = $node->getBoundary();
if ($boundary->isClosed()) {
return;
}
$parent = $node->getParent();
list($parentX, $parentY) = $parent->getStartDrawingPoint();
$startX = $node->getMarginLeft() + $parentX;
$startY = $parentY - $node->getMarginTop();
$this->setNodesPosition($node, $startX, $startY);
$boundary->setNext($startX, $startY);
}