| /* |
| * Copyright (c) 2018, 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. |
| */ |
| |
| import java.awt.Font; |
| |
| import javax.swing.JSpinner; |
| import javax.swing.SwingUtilities; |
| import javax.swing.UIManager; |
| import javax.swing.UnsupportedLookAndFeelException; |
| import javax.swing.plaf.UIResource; |
| |
| import static javax.swing.JSpinner.DefaultEditor; |
| import static javax.swing.UIManager.getInstalledLookAndFeels; |
| |
| /** |
| * @test |
| * @key headful |
| * @bug 8210739 |
| */ |
| public final class FontSetToNull { |
| |
| private static final Font USERS_FONT = new Font("dialog", Font.BOLD, 41); |
| |
| public static void main(final String[] args) throws Exception { |
| for (final UIManager.LookAndFeelInfo laf : getInstalledLookAndFeels()) { |
| SwingUtilities.invokeAndWait(() -> setLookAndFeel(laf)); |
| SwingUtilities.invokeAndWait(() -> { |
| // default spinner |
| test(new JSpinner()); |
| // spinner which always uses the null font |
| test(new JSpinner(){ |
| @Override |
| public Font getFont() { |
| return null; |
| } |
| }); |
| }); |
| } |
| } |
| |
| /** |
| * A sequence of methods that test a possible NPE. |
| */ |
| private static void test(JSpinner spinner) { |
| final DefaultEditor de = (DefaultEditor) spinner.getEditor(); |
| |
| spinner.setFont(null); // Check possible NPE |
| SwingUtilities.updateComponentTreeUI(de); // Check possible NPE |
| spinner.setFont(null); // Check possible NPE |
| |
| // should not replace the font of the TextField |
| de.getTextField().setFont(USERS_FONT); |
| spinner.setFont(null); |
| |
| final Font tff = de.getTextField().getFont(); |
| if (tff instanceof UIResource || !tff.equals(USERS_FONT)) { |
| throw new RuntimeException("Wrong font: " + tff); |
| } |
| |
| spinner.setEditor(new JSpinner().getEditor()); // Check possible NPE |
| } |
| |
| private static void setLookAndFeel(final UIManager.LookAndFeelInfo laf) { |
| try { |
| UIManager.setLookAndFeel(laf.getClassName()); |
| System.out.println("LookAndFeel: " + laf.getClassName()); |
| } catch (ClassNotFoundException | InstantiationException | |
| UnsupportedLookAndFeelException | IllegalAccessException e) { |
| throw new RuntimeException(e); |
| } |
| } |
| } |