Swing/RippleBorder のバックアップの現在との差分(No.2)

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class RippleBorder extends EmptyBorder {
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  private final Timer animator;
  private final JComponent comp;
  private float count = 1f;

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#screenshot
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  public RippleBorder(JComponent c, int width) {
    super(width, width, width, width);
    this.comp = c;
    animator = new Timer(80, new ActionListener() {
      @Override public void actionPerformed(ActionEvent e) {
        comp.repaint();
        count += .9f;
      }
    });
    comp.addMouseListener(new MouseAdapter() {
      @Override public void mouseEntered(MouseEvent e) {
        comp.setForeground(Color.RED);
        animator.start();
      }

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**サンプルコード [#c89c1907]
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 class RippleBorder extends EmptyBorder {
   private final javax.swing.Timer animator;
   private final JComponent comp;
   public RippleBorder(JComponent c, int width) {
     super(width, width, width, width);
     this.comp = c;
     animator = new javax.swing.Timer(80, new ActionListener() {
       public void actionPerformed(ActionEvent e) {
         comp.repaint();
         count+=0.9f;
       }
     });
     comp.addMouseListener(new MouseAdapter() {
       public void mouseEntered(MouseEvent e) {
         //comp.setForeground(SystemColor.activeCaption);
         comp.setForeground(SystemColor.red);
         startAnimation();
       }
       public void mouseExited(MouseEvent e) {
         comp.setForeground(SystemColor.textText);
         stopAnimation();
       }
     });
   }
   boolean startflag = false;
   boolean stopflag  = false;
   public void startAnimation() {
     startflag = true;
     stopflag = false;
     animator.start();
   }
   public void stopAnimation() {
     stopflag = true;
   }
   private float count = 1.0f;
   public void paintBorder(Component c, Graphics g,
                           int x, int y, int w, int h) {
     if(!startflag) return;
     Graphics2D g2 = (Graphics2D)g;
     g2.setColor(SystemColor.white);
     float a = 1.0f/count;
     if(0.12f-a>1.0e-2) a = 0.0f;
     g2.setComposite(
       AlphaComposite.getInstance(AlphaComposite.SRC_OVER,a));
     Insets i = getBorderInsets();
     int xx = i.left-(int)count;
     int yy = i.top-(int)count;
     int ww = i.left+i.right-(int)(count*2.0f);
     int hh = i.top+i.bottom-(int)(count*2.0f);
     g2.setStroke(new BasicStroke(count*1.2f));
     g2.drawRoundRect(xx, yy, w-ww, h-hh, 10, 10);
     if(xx<0) {
       count = 1.0f;
       if(stopflag) {
         animator.stop();
         startflag = false;
         stopflag = false;
         return;
       }
     }
   }
 }
      @Override public void mouseExited(MouseEvent e) {
        comp.setForeground(Color.BLACK);
      }
    });
  }

-&jnlp;
-&jar;
-&zip;
  @Override public void paintBorder(Component c, Graphics g, int x, int y, int w, int h) {
    if (!animator.isRunning()) {
      super.paintBorder(c, g, x, y, w, h);
      return;
    }
    Graphics2D g2 = (Graphics2D) g;
    g2.setPaint(Color.WHITE);
    float a = 1f / count;
    if (.12f - a > 1.0e-2) {
      a = 0f;
    }
    g2.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, a));
    Insets i = getBorderInsets();
    int xx = i.left - (int) count;
    int yy = i.top - (int) count;
    int ww = i.left + i.right - (int) (count * 2f);
    int hh = i.top + i.bottom - (int) (count * 2f);
    g2.setStroke(new BasicStroke(count * 1.2f));
    g2.drawRoundRect(xx, yy, w - ww, h - hh, 10, 10);
    if (xx < 0 && animator.isRunning()) {
      count = 1f;
      animator.stop();
    }
  }
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}
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