Swing/Wipe のバックアップ(No.14)

class WipeImage extends JComponent implements ActionListener {
  private int ww = 0;
  public WipeImage() {
    super();
    setBackground(Color.BLACK);
  }
  @Override public void paintComponent(Graphics g) {
    super.paintComponent(g);
    int iw = (int)icon.getIconWidth();
    int ih = (int)icon.getIconHeight();
    if(direction) {
      if(ww<iw) ww=ww+10;
      else animator.stop();
    }else{
      if(ww>0) ww=ww-10;
      else animator.stop();
    }
    g.drawImage(icon.getImage(), 0, 0, iw, ih, this);
    g.fillRect(ww, 0, iw-ww, ih);
  }
  @Override public void actionPerformed(ActionEvent e) {
    repaint();
  }
}