99 lines
3.4 KiB
Java
99 lines
3.4 KiB
Java
/*
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* Copyright (c) 2005, 2023, 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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/*
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@test
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@bug 6257219
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@summary FlowLayout gives a wrong minimum size if the first component is hidden.
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@key headful
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@run main MinimumLayoutSize
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*/
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import java.awt.AWTException;
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import java.awt.Button;
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import java.awt.EventQueue;
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import java.awt.FlowLayout;
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import java.awt.Frame;
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import java.awt.LayoutManager;
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import java.awt.Panel;
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import java.awt.Robot;
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import java.lang.reflect.InvocationTargetException;
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public class MinimumLayoutSize {
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Frame frame;
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Button b1;
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Button b2;
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Panel panel;
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public void start() throws AWTException,
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InterruptedException, InvocationTargetException {
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try {
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Robot robot = new Robot();
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LayoutManager layout = new FlowLayout(FlowLayout.LEFT, 100, 0);
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final int[] widths = new int[2];
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EventQueue.invokeAndWait(() -> {
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frame = new Frame("MinimumLayoutSize");
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b1 = new Button("B1");
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b2 = new Button("B2");
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panel = new Panel();
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panel.add(b2);
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frame.add(panel);
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frame.pack();
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frame.setVisible(true);
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});
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robot.waitForIdle();
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robot.delay(1000);
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//add hidden component b1
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EventQueue.invokeAndWait(() -> {
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widths[0] = layout.minimumLayoutSize(panel).width;
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b1.setVisible(false);
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panel.add(b1, 0);
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});
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robot.waitForIdle();
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robot.delay(1000);
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EventQueue.invokeAndWait(() -> {
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widths[1] = layout.minimumLayoutSize(panel).width;
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frame.setVisible(false);
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});
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System.out.println("TRACE: w1 = " + widths[0] + " w2 = " + widths[1]);
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if (widths[0] != widths[1]) {
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throw new RuntimeException("Test FAILED. Minimum sizes are not equal."
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+ " w1 = " + widths[0] + " w2 = " + widths[1]);
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}
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} finally {
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if (frame != null) {
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frame.dispose();
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}
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}
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System.out.println("Test passed");
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}
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public static void main(String[] args) throws InterruptedException,
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InvocationTargetException, AWTException {
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MinimumLayoutSize test = new MinimumLayoutSize();
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test.start();
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}
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}
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