}
@SuppressWarnings("unchecked")
public void init( BoxPart owner ) {
EditPart parentPart = owner.getParent();
PageImpl pageImpl = (PageImpl) parentPart.getModel();
EList<Box> boxes = (EList<Box>) pageImpl.getBoxes();
int size = boxes.size();
Box box = owner.getBoxPrinter().getBox();
boxes.move(size - 1, box);
}