01 /*
02 * Copyright 1997-2000 Sun Microsystems, Inc. All Rights Reserved.
03 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
04 *
05 * This code is free software; you can redistribute it and/or modify it
06 * under the terms of the GNU General Public License version 2 only, as
07 * published by the Free Software Foundation. Sun designates this
08 * particular file as subject to the "Classpath" exception as provided
09 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25 package javax.swing.text;
26
27 import java.awt.Component;
28 import javax.swing.event.ChangeListener;
29 import javax.swing.event.ChangeEvent;
30
31 import java.util.Enumeration;
32 import java.util.Hashtable;
33
34 /**
35 * A collection of attributes to associate with an element in a document.
36 * Since these are typically used to associate character and paragraph
37 * styles with the element, operations for this are provided. Other
38 * customized attributes that get associated with the element will
39 * effectively be name-value pairs that live in a hierarchy and if a name
40 * (key) is not found locally, the request is forwarded to the parent.
41 * Commonly used attributes are separated out to facilitate alternative
42 * implementations that are more efficient.
43 *
44 * @author Timothy Prinzing
45 * @version 1.28 05/05/07
46 */
47 public interface Style extends MutableAttributeSet {
48
49 /**
50 * Fetches the name of the style. A style is not required to be named,
51 * so <code>null</code> is returned if there is no name
52 * associated with the style.
53 *
54 * @return the name
55 */
56 public String getName();
57
58 /**
59 * Adds a listener to track whenever an attribute
60 * has been changed.
61 *
62 * @param l the change listener
63 */
64 public void addChangeListener(ChangeListener l);
65
66 /**
67 * Removes a listener that was tracking attribute changes.
68 *
69 * @param l the change listener
70 */
71 public void removeChangeListener(ChangeListener l);
72
73 }
|