Method directUseCount

src/model/ResourceObject.cpp:25–51

      : ParentObject_Impl(other, model, keepHandle) {}

    unsigned ResourceObject_Impl::directUseCount(bool excludeChildren) const {

      unsigned result = 0;

      ModelObjectVector children;
      if (excludeChildren) {
        children = this->children();
      }

      WorkspaceObjectVector sources = this->sources();
      for (const WorkspaceObject& source : sources) {
        if (excludeChildren) {
          // check if this is a child
          auto it = std::find_if(children.cbegin(), children.cend(),
                                 [h = source.handle()](const ModelObject& mo) { return handleEquals<ModelObject, Handle>(mo, h); });
          if (it == children.end()) {
            // non-Child--count the use
            ++result;
          }
        } else {
          // count the use
          ++result;
        }
      }

      return result;
    }

    unsigned ResourceObject_Impl::nonResourceObjectUseCount(bool excludeChildren) const {