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- /*
- Copyright (c) Xerox Corporation 1998-2002. All rights reserved.
-
- Use and copying of this software and preparation of derivative works based
- upon this software are permitted. Any distribution of this software or
- derivative works must comply with all applicable United States export control
- laws.
-
- This software is made available AS IS, and Xerox Corporation makes no warranty
- about the software, its performance or its conformity to any specification.
- */
-
- package observer;
- import java.awt.Frame;
- import java.awt.Panel;
- import java.awt.Container;
- import java.awt.Component;
- import java.awt.event.WindowAdapter;
- import java.awt.event.WindowEvent;
- import java.awt.BorderLayout;
-
- /*
- * Display is the container class that holds all the views of the
- * colored number.
- * In this demo, it holds buttons.
- */
-
- class Display extends Panel {
-
- protected Frame frame = new Frame("Subject/Observer Demo");
-
- Display() {
- frame.addWindowListener(new WindowAdapter() {
- public void windowClosing(WindowEvent e) {System.exit(0);}
- });
-
- frame.add(this, BorderLayout.CENTER);
- frame.pack();
- frame.setVisible(true);
- }
-
- void addToFrame(Component c) {
- add(c);
- frame.pack();
- }
- }
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