public void paint(Graphics g) {
   Graphics2D g_2d = (Graphics2D) g;
   Ellipse2D ellipse = new Ellipse2D.Double(0, 2, 80, 80);
   Rectangle2D rect = new Rectangle2D.Double(40, 2, 80, 80);
   Area a1 = new Area(ellipse);
   Area a2 = new Area(rect);
   a1.intersect(a2); // "Óë"
   g_2d.fill(a1);
   ellipse.setFrame(130, 2, 80, 80);
   rect.setFrame(170, 2, 80, 80);
   a1 = new Area(ellipse);
   a2 = new Area(rect);
   a1.add(a2); // "»ò"
   g_2d.draw(a1);
   ellipse.setFrame(0, 90, 80, 80);
   rect.setFrame(40, 90, 80, 80);
   a1 = new Area(ellipse);
   a2 = new Area(rect);
   a1.subtract(a2); // "²î"
   g_2d.draw(a1);
   ellipse.setFrame(130, 90, 80, 80);
   rect.setFrame(170, 90, 80, 80);
   a1 = new Area(ellipse);
   a2 = new Area(rect);
   a1.exclusiveOr(a2); // "Òì»ò"
   g_2d.fill(a1);
 }
Ejemplo n.º 2
0
  private static final Shape createMask(int width, int height) {
    Shape outside = new Rectangle2D.Double(0, 0, width, height);
    Shape inside = new RoundRectangle2D.Double(10, 10, width - 20, height - 20, 50, 50);

    Area area = new Area(outside);
    area.subtract(new Area(inside));

    return area;
  }