96 lines
2.9 KiB
Java
96 lines
2.9 KiB
Java
/*
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* Copyright (c) 2002, 2024, 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 4693644
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* @summary verifies that there are no artifacts due to copying with GDI
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* @library /java/awt/regtesthelpers
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* @build PassFailJFrame
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* @run main/manual GdiLockTest
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*/
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import java.awt.Color;
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import java.awt.Component;
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import java.awt.Frame;
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import java.awt.Graphics;
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public class GdiLockTest {
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static final String INSTRUCTIONS = """
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A window will open up next to these instructions.
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The text you see in that window should blink on and off.
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If it never disappears, then the test has failed.
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""";
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public static void main(String[] argv) throws Exception {
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PassFailJFrame.builder()
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.title("GdiLockTest")
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.instructions(INSTRUCTIONS)
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.testTimeOut(5)
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.rows(5)
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.columns(45)
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.testUI(GdiLockTest::createUI)
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.build()
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.awaitAndCheck();
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}
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private static Frame createUI() {
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Frame f = new Frame("GdiLockTest");
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f.setSize(300, 300);
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GdiLockTestComponent test = new GdiLockTestComponent();
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Thread t = new Thread(test);
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f.add(test);
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t.start();
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return f;
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}
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}
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class GdiLockTestComponent extends Component implements Runnable {
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boolean textVisible = true;
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public void paint(Graphics g) {
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g.setColor(Color.white);
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g.fillRect(0, 0, getWidth(), getHeight());
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g.setColor(Color.black);
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if (!textVisible) {
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g.setClip(200, 200, 300, 300);
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}
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g.drawString("This text should be blinking", 10, 30);
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if (!textVisible) {
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g.setClip(0, 0, getWidth(), getHeight());
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}
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}
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public void run() {
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while (true) {
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repaint();
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textVisible = !textVisible;
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try {
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Thread.sleep(500);
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} catch (Exception e) {}
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}
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}
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}
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