01 /*
02 * Copyright 1998 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.html;
26
27 import javax.swing.text.*;
28
29 /**
30 * TextAreaDocument extends the capabilities of the PlainDocument
31 * to store the data that is initially set in the Document.
32 * This is stored in order to enable an accurate reset of the
33 * state when a reset is requested.
34 *
35 * @author Sunita Mani
36 * @version 1.15 05/05/07
37 */
38
39 class TextAreaDocument extends PlainDocument {
40
41 String initialText;
42
43 /**
44 * Resets the model by removing all the data,
45 * and restoring it to its initial state.
46 */
47 void reset() {
48 try {
49 remove(0, getLength());
50 if (initialText != null) {
51 insertString(0, initialText, null);
52 }
53 } catch (BadLocationException e) {
54 }
55 }
56
57 /**
58 * Stores the data that the model is initially
59 * loaded with.
60 */
61 void storeInitialText() {
62 try {
63 initialText = getText(0, getLength());
64 } catch (BadLocationException e) {
65 }
66 }
67 }
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