01: /*
02: * @(#)AWTEventListenerProxy.java 1.5 03/01/23
03: *
04: * Copyright 1990-2006 Sun Microsystems, Inc. All Rights Reserved.
05: * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
06: *
07: * This program is free software; you can redistribute it and/or
08: * modify it under the terms of the GNU General Public License version
09: * 2 only, as published by the Free Software Foundation.
10: *
11: * This program is distributed in the hope that it will be useful, but
12: * WITHOUT ANY WARRANTY; without even the implied warranty of
13: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14: * General Public License version 2 for more details (a copy is
15: * included at /legal/license.txt).
16: *
17: * You should have received a copy of the GNU General Public License
18: * version 2 along with this work; if not, write to the Free Software
19: * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20: * 02110-1301 USA
21: *
22: * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
23: * Clara, CA 95054 or visit www.sun.com if you need additional
24: * information or have any questions.
25: */
26:
27: package java.awt.event;
28:
29: import java.util.EventListenerProxy;
30: import java.awt.AWTEvent;
31: import java.awt.event.AWTEventListener;
32:
33: /**
34: * A class which extends the <code>EventListenerProxy</code>, specifically
35: * for adding an <code>AWTEventListener</code> for a specific event mask.
36: * Instances of this class can be added as <code>AWTEventListener</code>s to
37: * a Toolkit object.
38: * <p>
39: * The <code>getAWTEventListeners</code> method of Toolkit can
40: * return a mixture of <code>AWTEventListener</code> and
41: * <code>AWTEventListenerProxy</code> objects.
42: *
43: * @see java.awt.Toolkit
44: * @see java.util.EventListenerProxy
45: * @since 1.4
46: */
47: public class AWTEventListenerProxy extends java.util.EventListenerProxy
48: implements AWTEventListener {
49:
50: private long eventMask;
51:
52: /**
53: * Constructor which binds the AWTEventListener to a specific
54: * event mask.
55: *
56: * @param listener The listener object
57: * @param eventMask The bitmap of event types to receive
58: */
59: public AWTEventListenerProxy(long eventMask,
60: AWTEventListener listener) {
61: super (listener);
62: this .eventMask = eventMask;
63: }
64:
65: /**
66: * Forwards the property change event to the listener delegate.
67: *
68: * @param evt the property change event
69: */
70: public void eventDispatched(AWTEvent evt) {
71: ((AWTEventListener) getListener()).eventDispatched(evt);
72: }
73:
74: /**
75: * Returns the event mask associated with the
76: * listener.
77: */
78: public long getEventMask() {
79: return eventMask;
80: }
81: }
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