private List<ArrangeConstraint> getArrangeConstraints(final EObject diagramElement) {
List<ArrangeConstraint> constraints = null;
if (diagramElement instanceof AbstractDNode) {
final AbstractDNode node = (AbstractDNode) diagramElement;
constraints = node.getArrangeConstraints();
} else if (diagramElement instanceof DEdge) {
final DEdge edge = (DEdge) diagramElement;
constraints = edge.getArrangeConstraints();
}
return constraints;
}
private void addBorderNodes(AbstractDNode abstractNode, Collection<DNode> result) {
final Iterator<DNode> itBorder = abstractNode.getOwnedBorderedNodes().iterator();
while (itBorder.hasNext()) {
final DNode borderNode = itBorder.next();
result.add(borderNode);
addBorderNodes(borderNode, result);
}
}