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!7

module WebCamFaceFinder > DynImageSurface {
  transient BufferedImage lastImage;
  FaceFinderByPictures1 finder;

  start {
    if (finder == null)
      finder = unstructFile(javaxDataDir("Face Finder/smallest-finder-over-95.struct"));
    doEvery(100, rstUpdate()); 
  }
  
  afterVisualize { imageSurface_pixelated(imageSurface); }
  
  void update {
    if (imageSurface == null) ret;
    final BufferedImage img = dm_webCamImage();
    temp tempAfterwards(r { lastImage = img });
    if (img == null || img == lastImage) ret;
    Rect r = cloneRect(finder.get(RGBImage(img)));
    setSelection(r);
    setImage(img);
  }
}