93 lines
3.3 KiB
Java
93 lines
3.3 KiB
Java
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/*
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* Copyright (c) 2018, Oracle and/or its affiliates. All rights reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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import java.awt.Font;
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import javax.swing.JSpinner;
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import javax.swing.SwingUtilities;
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import javax.swing.UIManager;
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import javax.swing.UnsupportedLookAndFeelException;
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import javax.swing.plaf.UIResource;
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import static javax.swing.JSpinner.DefaultEditor;
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import static javax.swing.UIManager.getInstalledLookAndFeels;
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/**
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* @test
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* @key headful
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* @bug 8210739
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*/
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public final class FontSetToNull {
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private static final Font USERS_FONT = new Font("dialog", Font.BOLD, 41);
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public static void main(final String[] args) throws Exception {
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for (final UIManager.LookAndFeelInfo laf : getInstalledLookAndFeels()) {
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SwingUtilities.invokeAndWait(() -> setLookAndFeel(laf));
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SwingUtilities.invokeAndWait(() -> {
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// default spinner
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test(new JSpinner());
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// spinner which always uses the null font
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test(new JSpinner(){
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@Override
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public Font getFont() {
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return null;
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}
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});
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});
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}
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}
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/**
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* A sequence of methods that test a possible NPE.
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*/
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private static void test(JSpinner spinner) {
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final DefaultEditor de = (DefaultEditor) spinner.getEditor();
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spinner.setFont(null); // Check possible NPE
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SwingUtilities.updateComponentTreeUI(de); // Check possible NPE
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spinner.setFont(null); // Check possible NPE
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// should not replace the font of the TextField
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de.getTextField().setFont(USERS_FONT);
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spinner.setFont(null);
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final Font tff = de.getTextField().getFont();
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if (tff instanceof UIResource || !tff.equals(USERS_FONT)) {
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throw new RuntimeException("Wrong font: " + tff);
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}
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spinner.setEditor(new JSpinner().getEditor()); // Check possible NPE
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}
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private static void setLookAndFeel(final UIManager.LookAndFeelInfo laf) {
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try {
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UIManager.setLookAndFeel(laf.getClassName());
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System.out.println("LookAndFeel: " + laf.getClassName());
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} catch (ClassNotFoundException | InstantiationException |
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UnsupportedLookAndFeelException | IllegalAccessException e) {
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throw new RuntimeException(e);
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}
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}
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}
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