7022041: TitleBorder Null Pointer Exception
Summary: Added check if getTitleFont() and getTitleColor() don't return null
Reviewed-by: alexsch
/*
* Copyright 2012 Red Hat, Inc. All Rights Reserved.
* Copyright (c) 2012, 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.
*/
import java.awt.Color;
import java.awt.Font;
import javax.swing.border.EmptyBorder;
import javax.swing.border.TitledBorder;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
/* @test
* @bug 7022041
* @summary This test check the behaviour of getTitleFont() and getTitleColor()
* methods of the TitledBorder class.
* @author Pavel Tisnovsky
*/
public class Test7022041 {
public static void main(String[] args) throws Exception {
UIManager.LookAndFeelInfo[] installedLookAndFeels = UIManager.getInstalledLookAndFeels();
// try to test all installed Look and Feels
for (UIManager.LookAndFeelInfo lookAndFeel : installedLookAndFeels) {
String name = lookAndFeel.getName();
System.out.println("Testing " + name);
// Some Look and Feels work only when test is run in a GUI environment
// (GTK+ LAF is an example)
try {
UIManager.setLookAndFeel(lookAndFeel.getClassName());
checkTitleColor();
System.out.println(" titleColor test ok");
checkTitleFont();
System.out.println(" titleFont test ok");
}
catch (UnsupportedLookAndFeelException e) {
System.out.println(" Note: LookAndFeel " + name
+ " is not supported on this configuration");
}
}
}
/**
* Check behaviour of method TitledBorder.getTitleColor()
*/
private static void checkTitleColor() {
TitledBorder titledBorder = new TitledBorder(new EmptyBorder(1, 1, 1, 1));
Color defaultColor = UIManager.getLookAndFeelDefaults().getColor("TitledBorder.titleColor");
Color titledBorderColor = titledBorder.getTitleColor();
// check default configuration
if (defaultColor == null) {
if (titledBorderColor == null) {
return;
}
else {
throw new RuntimeException("TitledBorder default color should be null");
}
}
if (!defaultColor.equals(titledBorderColor)) {
throw new RuntimeException("L&F default color " + defaultColor.toString()
+ " differs from TitledBorder color " + titledBorderColor.toString());
}
// title color is explicitly specified
Color color = Color.green;
titledBorder.setTitleColor(color);
if (!color.equals(titledBorder.getTitleColor())) {
throw new RuntimeException("TitledBorder color should be " + color.toString());
}
// title color is unspecified
titledBorder.setTitleColor(null);
if (!defaultColor.equals(titledBorder.getTitleColor())) {
throw new RuntimeException("L&F default color " + defaultColor.toString()
+ " differs from TitledBorder color " + titledBorderColor.toString());
}
}
/**
* Check behaviour of method TitledBorder.getTitleFont()
*/
private static void checkTitleFont() {
TitledBorder titledBorder = new TitledBorder(new EmptyBorder(1, 1, 1, 1));
Font defaultFont = UIManager.getLookAndFeelDefaults().getFont("TitledBorder.font");
Font titledBorderFont = titledBorder.getTitleFont();
// check default configuration
if (defaultFont == null) {
if (titledBorderFont == null) {
return;
}
else {
throw new RuntimeException("TitledBorder default font should be null");
}
}
if (!defaultFont.equals(titledBorderFont)) {
throw new RuntimeException("L&F default font " + defaultFont.toString()
+ " differs from TitledBorder font " + titledBorderFont.toString());
}
// title font is explicitly specified
Font font = new Font("Dialog", Font.PLAIN, 10);
titledBorder.setTitleFont(font);
if (!font.equals(titledBorder.getTitleFont())) {
throw new RuntimeException("TitledBorder font should be " + font.toString());
}
// title Font is unspecified
titledBorder.setTitleFont(null);
if (!defaultFont.equals(titledBorder.getTitleFont())) {
throw new RuntimeException("L&F default font " + defaultFont.toString()
+ " differs from TitledBorder font " + titledBorderFont.toString());
}
}
}