sclass G22AnalysisPanel > MetaWithChangeListeners is Swingable, AutoCloseable {
  // This is actually persistable
  // TODO: use Ref pointer so it's cleaned when target is deleted
  settableWithVar G22Recognizer analyzer;
  
  transient settable G22Utils g22utils;
  
  transient SingleComponentPanel scp;
  transient ReliableSingleThread rstStartAnalysis = new(r _startAnalysis);
  
  transient gettable BufferedImage image;
  transient G22RunSingleAnalyzerPanel analyzerPanel;
  
  // we may be getting the same instance again but it still means
  // there was a change in the image
  public void setImage(BufferedImage image) {
    this.image = image;
    analyzerPanel?.setImage(image);
  }
  
  cachedVisualize {
    scp = singleComponentPanel();
    varAnalyzer().onChangeAndNow(rstStartAnalysis);
    ret northAndCenterWithMargins(
      withLabel("Analyzer",
        bindComboBoxToVar(varAnalyzer(),
          jTypedComboBox(nullPlus(list(g22utils.concepts(), G22Recognizer)), analyzer))),
      scp
    );
  }
  
  void _startAnalysis {
    var panel = optCast G22RunSingleAnalyzerPanel(analyzerPanel);
    if (panel == null || panel.analyzer != analyzer)
      scp.set(analyzerPanel = new G22RunSingleAnalyzerPanel(g22utils, image, analyzer));
  }
  
  close {}
}