01: /* ========================================================================
02: * JCommon : a free general purpose class library for the Java(tm) platform
03: * ========================================================================
04: *
05: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jcommon/index.html
08: *
09: * This library is free software; you can redistribute it and/or modify it
10: * under the terms of the GNU Lesser General Public License as published by
11: * the Free Software Foundation; either version 2.1 of the License, or
12: * (at your option) any later version.
13: *
14: * This library is distributed in the hope that it will be useful, but
15: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
16: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
17: * License for more details.
18: *
19: * You should have received a copy of the GNU Lesser General Public
20: * License along with this library; if not, write to the Free Software
21: * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22: * USA.
23: *
24: * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25: * in the United States and other countries.]
26: *
27: * --------------------
28: * IntegerDocument.java
29: * --------------------
30: * (C) Copyright 2000-2004, by Andrzej Porebski.
31: *
32: * Original Author: Andrzej Porebski;
33: * Contributor(s): -;
34: *
35: * $Id: IntegerDocument.java,v 1.3 2005/11/16 15:58:41 taqua Exp $
36: *
37: * Changes (from 7-Nov-2001)
38: * -------------------------
39: * 07-Nov-2001 : Added to com.jrefinery.ui package (DG);
40: * 14-Oct-2002 : Fixed errors reported by Checkstyle (DG);
41: *
42: */
43:
44: package org.jfree.ui;
45:
46: import javax.swing.text.AttributeSet;
47: import javax.swing.text.BadLocationException;
48: import javax.swing.text.PlainDocument;
49:
50: /**
51: * A document for editing integers.
52: *
53: * @author Andrzej Porebski
54: */
55: public class IntegerDocument extends PlainDocument {
56:
57: /**
58: * Inserts a string.
59: *
60: * @param i i.
61: * @param s s.
62: * @param attributes the attributes.
63: *
64: * @throws BadLocationException ??
65: */
66: public void insertString(final int i, final String s,
67: final AttributeSet attributes) throws BadLocationException {
68:
69: super .insertString(i, s, attributes);
70: if (s != null && (!s.equals("-") || i != 0 || s.length() >= 2)) {
71: try {
72: Integer.parseInt(getText(0, getLength()));
73: } catch (NumberFormatException e) {
74: remove(i, s.length());
75: }
76: }
77: }
78:
79: }
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