//static int cycleSegmentedComponents2_outline = 4;

static void cycleSegmentedComponents2(final BufferedImage img, final BufferedImage bigImg, final L<ConnectedComponent> components) {
  final new Var<ImageSurface> is;
  final Var<int> iComponent = new(-1);
  
  Runnable nextImage = r {
    iComponent.set(mod(iComponent!+1, l(components));
    ConnectedComponent c = components.get(iComponent!);
    print("Bounding box: " + pixelSetBounds(c) + ", rectangleness: " + pixelSetRectangleness(c)); 
    is.set(packFrameInTopRightCorner(showZoomedImage(is!,
      cutOutPixelSet_scale(img, bigImg, c/*, cycleSegmentedComponents2_outline*/),
      "Cut out " + (iComponent!+1) + "/" + l(components)));
  };
  
  callF(nextImage);
  packInTopRightCorner(addToWindow(is!, jcenteredbuttons(
    "Next", nextImage,
    "Save", r {
      final JTextField tf = jtextfield();
      showTitledForm("Save image",
        "Name", tf,
        r {
          ConnectedComponent c = components.get(iComponent!);
          BufferedImage cut = cutOutPixelSet(img, c);
          print("Cut: " + cut.getWidth() + "*" + cut.getHeight() + " - " + l(toPNG(cut)) + " bytes");
          S imageID = uploadToLocalImageDB(cut, getTextTrim(tf));
          infoBoxTopLeftCorner("Image saved as " + imageID);
        });
    })));
}

Began life as a copy of #1010170