Swing/Wipe のバックアップの現在との差分(No.8)

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class WipeImage extends JComponent implements ActionListener {
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  private int ww = 0;
  public WipeImage() {
    super();
    setBackground(Color.BLACK);
  }

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#screenshot
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  @Override protected void paintComponent(Graphics g) {
    super.paintComponent(g);
    int iw = (int) icon.getIconWidth();
    int ih = (int) icon.getIconHeight();
    if (direction) {
      if (ww < iw) {
        ww += 10;
      } else {
        animator.stop();
      }
    } else {
      if (ww > 0) {
        ww -= 10;
      } else {
        animator.stop();
      }
    }
    g.drawImage(icon.getImage(), 0, 0, iw, ih, this);
    g.fillRect(ww, 0, iw - ww, ih);
  }

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**サンプルコード [#w7fb70a8]
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 class WipeImage extends JComponent implements ActionListener {
   private int ww = 0;
   public WipeImage() {
     super();
     setBackground(Color.black);
   }
   public void paintComponent(Graphics g) {
     g.setColor(getBackground());
     g.fillRect(0, 0, getWidth(), getHeight());
     if(mode) {
       if(ww<((int) (icon.getIconWidth()))) ww=ww+10;
       else animator.stop();
     }else{
       if(ww>0) ww=ww-10;
       else animator.stop();
     }
     g.drawImage(icon.getImage(), 0, 0, 
                 (int) (icon.getIconWidth()),
                 (int) (icon.getIconHeight()), this);
     g.fillRect(ww, 0,
                (int) (icon.getIconWidth()),
                (int) (icon.getIconHeight()));
   }
  @Override public void actionPerformed(ActionEvent e) {
    repaint();
  }
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}
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