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.
126 lines
4.7 KiB
Java
126 lines
4.7 KiB
Java
/*
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* Copyright (c) 2002, 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 java.awt.Color;
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import java.awt.Dimension;
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import java.awt.EventQueue;
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import java.awt.Frame;
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import java.awt.GraphicsConfiguration;
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import java.awt.GraphicsEnvironment;
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import java.awt.Point;
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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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import javax.imageio.ImageIO;
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/*
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* @test
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* @bug 4328588
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* @key headful
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* @summary Non-default visual on top-level Frame should work
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* @run main FrameVisualTest
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*/
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public class FrameVisualTest {
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private static GraphicsConfiguration[] gcs;
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private static volatile Frame[] frames;
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private static Robot robot;
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private static volatile int frameNum;
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private static volatile Point p;
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private static volatile Dimension d;
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private static final int TOLERANCE = 5;
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private static final int MAX_FRAME_COUNT = 30;
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public static void main(String[] args) throws Exception {
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gcs = GraphicsEnvironment.getLocalGraphicsEnvironment()
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.getDefaultScreenDevice().getConfigurations();
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robot = new Robot();
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robot.setAutoDelay(100);
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// Limit the number of frames tested if needed
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if (gcs.length > MAX_FRAME_COUNT) {
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frames = new Frame[MAX_FRAME_COUNT];
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} else {
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frames = new Frame[gcs.length];
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}
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System.out.println(gcs.length + " gcs found. Testing "
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+ frames.length + " frame(s).");
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for (frameNum = 0; frameNum < frames.length; frameNum++) {
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try {
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EventQueue.invokeAndWait(() -> {
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frames[frameNum] = new Frame("Frame w/ gc "
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+ frameNum, gcs[frameNum]);
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frames[frameNum].setSize(100, 100);
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frames[frameNum].setUndecorated(true);
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frames[frameNum].setBackground(Color.WHITE);
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frames[frameNum].setVisible(true);
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System.out.println("Frame " + frameNum + " created");
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});
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robot.delay(1000);
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EventQueue.invokeAndWait(() -> {
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p = frames[frameNum].getLocation();
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d = frames[frameNum].getSize();
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});
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Rectangle rect = new Rectangle(p, d);
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BufferedImage img = robot.createScreenCapture(rect);
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if (chkImgBackgroundColor(img)) {
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try {
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ImageIO.write(img, "png",
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new File("Frame_"
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+ frameNum + ".png"));
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} catch (IOException ignored) {}
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throw new RuntimeException("Frame visual test " +
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"failed with non-white background color");
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}
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} finally {
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EventQueue.invokeAndWait(() -> {
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if (frames[frameNum] != null) {
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frames[frameNum].dispose();
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System.out.println("Frame " + frameNum + " disposed");
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}
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});
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}
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}
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}
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private static boolean chkImgBackgroundColor(BufferedImage img) {
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// scan for mid-line and if it is non-white color then return true.
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for (int x = 1; x < img.getWidth() - 1; ++x) {
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Color c = new Color(img.getRGB(x, img.getHeight() / 2));
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if ((c.getRed() - Color.WHITE.getRed()) > TOLERANCE &&
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(c.getGreen() - Color.WHITE.getGreen()) > TOLERANCE &&
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(c.getBlue() - Color.WHITE.getBlue()) > TOLERANCE) {
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return true;
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}
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}
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return false;
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}
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}
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