!7

cmodule ImageSegmenter > DynImageSurface {
  float contrastThreshold = 0.5f;
  int gridSize = 2;
  transient ReliableSingleThread rst = dm_rst(this, r segmentIt);
  
  visualize {
    JSlider slider = jLiveValueSlider(dm_fieldLiveValue('contrastThreshold));
    main.onChange(slider, rst);
    JSpinner spinner = liveValueSpinner(dm_fieldLiveValue('gridSize), 2, 10);
    main.onChange(spinner, rst);
    ret withCenteredLineBelow(super.visualize(),
      withLabel("Contrast Threshold:", slider),
      withLabel("Grid size:", spinner),
      jbutton("Segment", rst));
  }
  
  start {
    if (!hasImage()) setImage(whiteImage(100, 100));
    dm_vmBus_onMessage('newClipboardContents, voidfunc(O o) {
      if (o cast BufferedImage) thread {
        setImage(o);
        rst.trigger();
      }
    });
  }
  
  void segmentIt enter {
    if (!hasImage()) ret;
    new AutoSegmenter as;
    as.g = gridSize;
    as.contrastThreshold = contrastThreshold;
    overlaySelectionsOnImageSurface(imageSurface, as.go(BWImage(getImage())));
  }
}