russell@unturf.com
0a580b313d
Authors: russell@unturf.com · brackishbert@gmail.com · foxhop.net · TimeHexOn.com Patches, unit tests, benchmarks, whitepaper, and outreach briefs. Public domain — no copyright claimed. Use freely.
113 lines
3.7 KiB
Java
113 lines
3.7 KiB
Java
/*
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* Copyright (c) 1998, 2025, 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 javax.imageio.ImageIO;
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import java.awt.Color;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.Menu;
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import java.awt.MenuBar;
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import java.awt.Rectangle;
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import java.awt.Robot;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.io.IOException;
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/*
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* @test
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* @key headful
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* @bug 4127271
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* @summary Tests that disposing of a Frame with MenuBar removes all traces
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* of the Frame from the screen.
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*/
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public class DisposeTest {
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private static Frame backgroundFrame;
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private static Frame testedFrame;
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private static final int PIXEL_OFFSET = 4;
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private static final Rectangle backgroundFrameBounds =
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new Rectangle(100, 100, 200, 200);
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private static final Rectangle testedFrameBounds =
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new Rectangle(150, 150, 100, 100);
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private static Robot robot;
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public static void main(String[] args) throws Exception {
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robot = new Robot();
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try {
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EventQueue.invokeAndWait(DisposeTest::initAndShowGui);
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robot.waitForIdle();
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robot.delay(500);
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EventQueue.invokeAndWait(testedFrame::dispose);
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robot.waitForIdle();
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robot.delay(500);
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test();
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} finally {
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EventQueue.invokeAndWait(() -> {
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backgroundFrame.dispose();
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testedFrame.dispose();
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});
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}
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}
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private static void test() {
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BufferedImage bi = robot.createScreenCapture(backgroundFrameBounds);
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int redPix = Color.RED.getRGB();
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for (int x = PIXEL_OFFSET; x < bi.getWidth() - PIXEL_OFFSET; x++) {
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for (int y = PIXEL_OFFSET; y < bi.getHeight() - PIXEL_OFFSET; y++) {
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if (bi.getRGB(x, y) != redPix) {
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try {
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ImageIO.write(bi, "png",
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new File("failure.png"));
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} catch (IOException ignored) {}
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throw new RuntimeException("Test failed");
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}
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}
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}
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}
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private static void initAndShowGui() {
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backgroundFrame = new Frame("DisposeTest background");
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backgroundFrame.setUndecorated(true);
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backgroundFrame.setBackground(Color.RED);
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backgroundFrame.setBounds(backgroundFrameBounds);
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backgroundFrame.setVisible(true);
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testedFrame = new UglyFrame();
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}
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static class UglyFrame extends Frame {
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public UglyFrame() {
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super("DisposeTest");
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MenuBar mb = new MenuBar();
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Menu m = new Menu("menu");
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mb.add(m);
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setMenuBar(mb);
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setBounds(testedFrameBounds);
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setVisible(true);
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}
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}
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}
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