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sclass G22AnalysisPanel > MetaWithChangeListeners is Swingable, AutoCloseable {
  // This is actually persistable
  // TODO: use Ref pointer so it's cleaned when target is deleted
  settableWithVar G22Analyzer analyzer;
  
  transient settable G22Utils g22utils;
  
  // where to show recognized boxes
  transient settable ImageSurface imageSurface;
  
  transient SingleComponentPanel scp;
  transient ReliableSingleThread rstStartAnalysis = new(r _startAnalysis);
  
  transient gettable BufferedImage image;
  transient G22RunSingleAnalyzerPanel analyzerPanel;
  
  public void setImage(File image) {
    setImage(loadImage2(image));
  }
  
  // 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(
      centerAndEastWithMargin(
        withLabel("Analyzer",
          bindComboBoxToVar(varAnalyzer(),
            swing(-> new ConceptsComboBox(g22utils.concepts(), G22Analyzer).allowNull(true))
        )),
        jline(
          jimageButton(#1101440, "Re-run analyzer", l0 remakeAnalyzerPanel),
          jimageButtonScaledToWidth(16, #1103068, "Edit analyzer", -> editAnalyzer(analyzer))
        )
      ),
      scp
    );
  }
  
  void _startAnalysis {
    var panel = optCast G22RunSingleAnalyzerPanel(analyzerPanel);
    if (panel == null || panel.analyzer != analyzer) {
      analyzerPanel = new G22RunSingleAnalyzerPanel(g22utils, image, analyzer);
      if (imageSurface != null) {
        analyzerPanel.onAnalyzerResult((analyzer, result) -> {
          imageSurface.clearOverlays();
          analyzerResultToOverlays(result);
        });
        analyzerPanel.onAnalyzerError((analyzer, error) ->
          imageSurface.clearOverlays());
      }
      scp.set(analyzerPanel);
    }
  }
  
  void analyzerResultToOverlays(O result) {
    if (result cast Rect) {
      imageSurface.addOverlay(new RenderRecognizedBox(RectAsRecognizedBox(result)));
    } else if (result cast IImageRegion) {
      imageSurface.addOverlay(new RenderRecognizedBox/*Region*/(RecognizedRegion(result)));
    }
  }
  
  void remakeAnalyzerPanel {
    analyzerPanel = null;
    thread {
      _startAnalysis();
    }
  }
  
  close {}
  
  swappable void editAnalyzer(G22Analyzer analyzer) {}
}