Method dirtyUp

gecode/gist/visualnode.cpp:101–110

  }

  void
  VisualNode::dirtyUp(const NodeAllocator& na) {
    VisualNode* cur = this;
    while (!cur->isDirty()) {
      cur->setDirty(true);
      if (! cur->isRoot()) {
        cur = cur->getParent(na);
      }
    }
  }

  void
  VisualNode::layout(const NodeAllocator& na) {