/*
* Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package com.sun.max.gui;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import javax.swing.*;
import javax.swing.border.*;
/**
* A dialog for displaying the details of an exception. Initially the dialog only shows the exception's
* {@linkplain Throwable#getMessage() message}. It includes a button for expanding the dialog to also show the stack
* trace. When the stack trace is shown, pressing the same button hides the stack trace.
*/
public final class ThrowableDialog extends JDialog {
/**
* Creates a dialog to display the details of an exception and makes it visible.
*
* @param throwable the exception whose details are being displayed
* @param owner the {@code Frame} from which the dialog is displayed
* @param title the {@code String} to display in the dialog's title bar
*/
public static void show(Throwable throwable, Frame owner, String title) {
new ThrowableDialog(throwable, owner, title).setVisible(true);
}
/**
* Creates a dialog to display the details of an exception and makes it visible on the
* {@linkplain SwingUtilities#invokeLater(Runnable) AWT dispatching thread}.
*
* @param throwable the exception whose details are being displayed
* @param owner the {@code Frame} from which the dialog is displayed
* @param title the {@code String} to display in the dialog's title bar
*/
public static void showLater(Throwable throwable, Frame owner, String title) {
final ThrowableDialog dialog = new ThrowableDialog(throwable, owner, title);
SwingUtilities.invokeLater(new Runnable() {
public void run() {
dialog.setVisible(true);
}
});
}
/**
* Creates a dialog to display the details of an exception. The dialog is not displayed by this method.
*
* @param throwable the exception whose details are being displayed
* @param owner the {@code Frame} from which the dialog is displayed
* @param title the {@code String} to display in the dialog's title bar
*/
private ThrowableDialog(Throwable throwable, Frame owner, String title) {
super(owner, title, false);
setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
setAlwaysOnTop(true);
final JToggleButton stackTraceButton = new JToggleButton("Show stack trace");
final JButton closeButton = new JButton("Close");
closeButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
setVisible(false);
dispose();
}
});
final JPanel buttonsPanel = new JPanel();
buttonsPanel.add(closeButton);
buttonsPanel.add(stackTraceButton);
final Container mainPane = getContentPane();
//mainPane.setLayout(new FlowLayout());
mainPane.setLayout(new BoxLayout(mainPane, BoxLayout.PAGE_AXIS));
final JLabel message = new JLabel(throwable.getMessage());
final JPanel messagePanel = new JPanel();
messagePanel.add(message);
mainPane.add(messagePanel);
mainPane.add(buttonsPanel);
pack();
final Dimension dialogWithoutStackTracePreferredSize = getPreferredSize();
final JTextArea stackTraceText = new JTextArea(20, 40);
throwable.printStackTrace(new PrintWriter(new Writer() {
@Override
public void close() throws IOException {
}
@Override
public void flush() throws IOException {
}
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
stackTraceText.append(new String(cbuf, off, len));
}
}));
final JScrollPane stackTracePanel = new JScrollPane(stackTraceText, JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED, JScrollPane.HORIZONTAL_SCROLLBAR_AS_NEEDED);
final Dimension stackTraceTextPreferredSize = stackTraceText.getPreferredSize();
stackTracePanel.setBorder(new TitledBorder("Stack trace"));
final Dimension stackTracePanelPreferredSize = new Dimension(
stackTraceTextPreferredSize.width + stackTracePanel.getVerticalScrollBar().getPreferredSize().width * 2,
stackTraceTextPreferredSize.height + stackTracePanel.getHorizontalScrollBar().getPreferredSize().height);
stackTracePanel.setPreferredSize(stackTracePanelPreferredSize);
stackTracePanel.setVisible(false);
stackTraceButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
if (stackTraceButton.isSelected()) {
stackTraceButton.setText("Hide stack trace");
stackTracePanel.setVisible(true);
setSize(new Dimension(Math.max(dialogWithoutStackTracePreferredSize.width, stackTracePanelPreferredSize.width),
dialogWithoutStackTracePreferredSize.height + Math.min(1000, stackTracePanelPreferredSize.height)));
} else {
stackTraceButton.setText("Show stack trace");
stackTracePanel.setVisible(false);
setSize(dialogWithoutStackTracePreferredSize);
}
validate();
}
});
mainPane.add(stackTracePanel);
setSize(dialogWithoutStackTracePreferredSize);
pack();
setLocationRelativeTo(owner);
}
// Test code
public static void main(String[] args) {
try {
recurse(0);
} catch (RuntimeException runtimeException) {
new ThrowableDialog(runtimeException, null, "Runtime Exception");
}
}
static void recurse(int more) {
if (more > 345) {
throw new RuntimeException("This is a test. Repeat. This is a test.");
}
recurse(more + 1);
}
}