CUpdaterLocationPro::walkTreeInDeep

private function walkTreeInDeep($nodeId, $edges, &$nodes, $margin, $depth = 0)
{
	$lMargin = $margin;

	if(empty($edges[$nodeId]))
		$rMargin = $margin + 1;
	else
	{
		$offset = $margin + 1;
		foreach($edges[$nodeId] as $sNode)
			$offset = $this->walkTreeInDeep($sNode, $edges, $nodes, $offset, $depth + 1);

		$rMargin = $offset;
	}

	if($nodeId != 'ROOT')
	{
		// store margins
		$this->data['TREE'][$nodeId]['LEFT_MARGIN'] = $lMargin;
		$this->data['TREE'][$nodeId]['RIGHT_MARGIN'] = $rMargin;
		$this->data['TREE'][$nodeId]['DEPTH_LEVEL'] = $depth;
	}

	return $rMargin + 1;
}