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.
93 lines
3.3 KiB
Java
93 lines
3.3 KiB
Java
/*
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* Copyright Amazon.com Inc. 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.EventQueue;
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import java.awt.Graphics2D;
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import java.awt.image.BufferedImage;
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import java.io.File;
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import java.util.concurrent.atomic.AtomicBoolean;
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import javax.swing.Icon;
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import javax.swing.UIManager;
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import javax.swing.UIManager.LookAndFeelInfo;
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import javax.swing.UnsupportedLookAndFeelException;
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import javax.swing.filechooser.FileSystemView;
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/**
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* @test
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* @bug 8376253
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* @summary FileSystemView may not report system icons when -Xcheck:jni enabled
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* @key headful
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* @run main SystemIconPixelDataTest
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* @run main/othervm -Xcheck:jni SystemIconPixelDataTest
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*/
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public final class SystemIconPixelDataTest {
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public static void main(String[] args) throws Exception {
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for (LookAndFeelInfo laf : UIManager.getInstalledLookAndFeels()) {
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AtomicBoolean ok = new AtomicBoolean();
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EventQueue.invokeAndWait(() -> ok.set(setLookAndFeel(laf)));
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if (ok.get()) {
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EventQueue.invokeAndWait(SystemIconPixelDataTest::test);
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}
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}
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}
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private static boolean setLookAndFeel(LookAndFeelInfo laf) {
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try {
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UIManager.setLookAndFeel(laf.getClassName());
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System.out.println("LookAndFeel: " + laf.getClassName());
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return true;
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} catch (UnsupportedLookAndFeelException ignored) {
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return false;
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} catch (Exception e) {
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throw new RuntimeException(e);
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}
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}
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private static void test() {
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FileSystemView fsv = FileSystemView.getFileSystemView();
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File home = fsv.getHomeDirectory();
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Icon icon = fsv.getSystemIcon(home);
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if (icon == null) {
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return;
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}
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int w = icon.getIconWidth();
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int h = icon.getIconHeight();
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if (w <= 0 || h <= 0) {
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throw new RuntimeException("Invalid icon size: " + w + "x" + h);
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}
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var img = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB);
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Graphics2D g = img.createGraphics();
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icon.paintIcon(null, g, 0, 0);
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g.dispose();
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for (int y = 0; y < h; y++) {
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for (int x = 0; x < w; x++) {
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if (img.getRGB(x, y) != 0) {
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return;
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}
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}
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}
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throw new RuntimeException("All pixels are zero");
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}
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}
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