Swing/SliderLabelAlignment のバックアップ(No.1)

class SliderLabelLayerUI extends LayerUI<JSlider> {
  private final JLabel min = new JLabel("Short");
  private final JLabel max = new JLabel("Long");

  @Override public void paint(Graphics g, JComponent c) {
    super.paint(g, c);
    if (c instanceof JLayer) {
      JSlider s = (JSlider) ((JLayer<?>) c).getView();
      Graphics2D g2 = (Graphics2D) g.create();
      Dimension d = c.getSize();
      Dimension d2 = min.getPreferredSize();
      FontMetrics metrics = s.getFontMetrics(s.getFont());
      int yy = s.getUI().getBaseline(s, d.width, d.height) - metrics.getAscent();
      int xx = 2;
      int w2 = d2.width;
      int h2 = d2.height;
      SwingUtilities.paintComponent(g2, min, s, xx, yy, w2, h2);
      Dimension d3 = max.getPreferredSize();
      int w3 = d3.width;
      int h3 = d3.height;
      SwingUtilities.paintComponent(g2, max, s, d.width - w3 - xx, yy, w3, h3);
      g2.dispose();
    }
  }
}