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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 Answer4d {
private Rectangle Group.cache = null;
private Group Point.enclosingGroup = null;
before(Point 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) {
if (p.enclosingGroup != null) {
p.enclosingGroup.cache = null;
}
}
}
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