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comparison agent/src/share/classes/sun/jvm/hotspot/ui/FindPanel.java @ 0:a61af66fc99e jdk7-b24

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author duke
date Sat, 01 Dec 2007 00:00:00 +0000
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children c18cbe5936b8
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-1:000000000000 0:a61af66fc99e
1 /*
2 * Copyright 2000 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
20 * CA 95054 USA or visit www.sun.com if you need additional information or
21 * have any questions.
22 *
23 */
24
25 package sun.jvm.hotspot.ui;
26
27 import java.io.*;
28 import java.awt.*;
29 import java.awt.event.*;
30 import javax.swing.*;
31 import javax.swing.text.*;
32
33 import sun.jvm.hotspot.debugger.*;
34 import sun.jvm.hotspot.runtime.*;
35 import sun.jvm.hotspot.utilities.*;
36
37 /** Uses {@link sun.jvm.hotspot.utilities.PointerFinder} to provide a
38 graphical user interface to the VM's debugging utility "find". */
39
40 public class FindPanel extends JPanel {
41 // UI widgets we need permanent handles to
42 private JTextField addressField;
43 private JTextArea textArea;
44 private JLabel statusLabel;
45
46 public FindPanel() {
47 super();
48
49 setLayout(new BorderLayout());
50 Box hbox = Box.createHorizontalBox();
51 hbox.add(new JLabel("Address: "));
52 addressField = new JTextField(20);
53 hbox.add(addressField);
54 statusLabel = new JLabel();
55 hbox.add(statusLabel);
56 add(hbox, BorderLayout.NORTH);
57
58 JScrollPane scroller = new JScrollPane();
59 textArea = new JTextArea();
60 textArea.setEditable(false);
61 textArea.setLineWrap(true);
62 textArea.setWrapStyleWord(true);
63 scroller.getViewport().add(textArea);
64 add(scroller, BorderLayout.CENTER);
65
66 addressField.addActionListener(new ActionListener() {
67 public void actionPerformed(ActionEvent e) {
68 try {
69 Address a = VM.getVM().getDebugger().parseAddress(addressField.getText());
70 PointerLocation loc = PointerFinder.find(a);
71 ByteArrayOutputStream bos = new ByteArrayOutputStream();
72 loc.printOn(new PrintStream(bos));
73 clear();
74 textArea.append(bos.toString());
75 statusLabel.setText("");
76 }
77 catch (NumberFormatException ex) {
78 statusLabel.setText("<parse error>");
79 }
80 catch (AddressException ex) {
81 statusLabel.setText("<bad address>");
82 }
83 catch (Exception ex) {
84 ex.printStackTrace();
85 statusLabel.setText("<error during find>");
86 }
87 }
88 });
89 }
90
91 private void clear() {
92 Document doc = textArea.getDocument();
93 if (doc.getLength() > 0) {
94 try {
95 doc.remove(0, doc.getLength());
96 }
97 catch (BadLocationException e) {
98 }
99 }
100 }
101 }