示例#1
0
  public Rectangle2D.Double layout(
      CompositeFigure compositeFigure, Point2D.Double anchor, Point2D.Double lead) {
    Rectangle2D.Double bounds = null;

    for (Figure child : compositeFigure.getChildren()) {
      Locator locator = getLocator(child);

      Rectangle2D.Double r;
      if (locator == null) {
        r = child.getBounds();
      } else {
        Point2D.Double p = locator.locate(compositeFigure, child);
        Dimension2DDouble d = child.getPreferredSize();
        r = new Rectangle2D.Double(p.x, p.y, d.width, d.height);
      }
      child.willChange();
      child.setBounds(
          new Point2D.Double(r.getMinX(), r.getMinY()),
          new Point2D.Double(r.getMaxX(), r.getMaxY()));
      child.changed();
      if (!r.isEmpty()) {
        if (bounds == null) {
          bounds = r;
        } else {
          bounds.add(r);
        }
      }
    }

    return (bounds == null) ? new Rectangle2D.Double() : bounds;
  }