public CallGraphViewData getCallGraphViewData(final Diff diff) {
    for (final CallGraphViewData viewData : getCallGraphViewsData()) {
      if (viewData.getGraphs().getDiff() == diff) {
        return viewData;
      }
    }
    return null;
  }
Contains view data for each opened view of a Diff object.
java/ui/src/main/java/com/google/security/zynamics/bindiff/project/userview/ViewManager.java