/* * Copyright (c) 2003, 2023, 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. */ /* * @test * @bug 4803649 * @summary setWidth() doesn't work on the container in a SpringLayout * @key headful */ import java.awt.Dimension; import java.awt.Robot; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextArea; import javax.swing.Spring; import javax.swing.SpringLayout; import javax.swing.SwingUtilities; public class bug4803649 { static JFrame fr; static JPanel panel; public static void main(String[] args) throws Exception { try { SwingUtilities.invokeAndWait(() -> { fr = new JFrame("bug4803649"); panel = new JPanel(); SpringLayout layout = new SpringLayout(); panel.setLayout(layout); JTextArea textArea = new JTextArea("asasddsa"); textArea.setPreferredSize(new Dimension(200, 200)); panel.add(textArea); SpringLayout.Constraints cCons = layout.getConstraints(textArea); cCons.setX(Spring.constant(10)); cCons.setY(Spring.constant(10)); SpringLayout.Constraints pCons = layout.getConstraints(panel); pCons.setWidth(Spring.sum(Spring.constant(10), cCons.getConstraint("East"))); pCons.setHeight(Spring.sum(Spring.constant(10), cCons.getConstraint("South"))); fr.getContentPane().add(panel); fr.setLocationRelativeTo(null); fr.pack(); fr.setVisible(true); }); Robot r = new Robot(); r.waitForIdle(); r.delay(1000); SwingUtilities.invokeAndWait(() -> { Dimension d = panel.getSize(); if (d.width < 220 || d.height < 220) { throw new RuntimeException("JPanel with the SpringLayout is too small"); } }); } finally { SwingUtilities.invokeAndWait(() -> { if (fr != null) { fr.dispose(); } }); } } }