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- /* *******************************************************************
- * Copyright (c) 2002 Palo Alto Research Center, Incorporated (PARC).
- * All rights reserved.
- * This program and the accompanying materials are made available
- * under the terms of the Common Public License v1.0
- * which accompanies this distribution and is available at
- * http://www.eclipse.org/legal/cpl-v10.html
- *
- * Contributors:
- * PARC initial implementation
- * ******************************************************************/
-
- package answers;
-
- import figures.FigureElement;
- import figures.Group;
- import figures.Point;
- import java.awt.Rectangle;
-
- aspect Answer4e {
- private Rectangle Group.cache = null;
- private Group FigureElement.enclosingGroup = null;
-
- before(FigureElement p, Group g):
- execution(void add(FigureElement)) && args(p) && target(g) {
- p.enclosingGroup = g;
- }
-
- Rectangle around(Group g):
- execution(Rectangle Group.getBounds()) && this(g) {
- if (g.cache == null) {
- g.cache = proceed(g);
- }
- return g.cache;
- }
-
- before(Point p): set(* Point.*) && target(p) {
- FigureElement fe = p;
- while (fe.enclosingGroup != null) {
- fe.enclosingGroup.cache = null;
- fe = fe.enclosingGroup;
- }
- }
- }
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