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/*
* Copyright (c) 2014, 2017, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import static java.awt.image.ImageObserver.ALLBITS;
import java.io.File;
import javax.imageio.ImageIO;
import sun.awt.OSInfo;
import sun.awt.SunToolkit;
import sun.awt.image.MultiResolutionToolkitImage;
/**
* @test
* @key headful
* @bug 8040291
* @author Alexander Scherbatiy
* @summary [macosx] Http-Images are not fully loaded when using ImageIcon
* @modules java.desktop/sun.awt
* java.desktop/sun.awt.image
* @run main MultiResolutionToolkitImageTest
*/
public class MultiResolutionToolkitImageTest {
private static final int IMAGE_WIDTH = 300;
private static final int IMAGE_HEIGHT = 200;
private static final Color COLOR_1X = Color.GREEN;
private static final Color COLOR_2X = Color.BLUE;
private static final String IMAGE_NAME_1X = "image.png";
private static final String IMAGE_NAME_2X = "image@2x.png";
private static final int WAIT_TIME = 400;
private static volatile boolean isImageLoaded = false;
private static volatile boolean isRVObserverCalled = false;
public static void main(String[] args) throws Exception {
if (!checkOS()) {
return;
}
generateImages();
testToolkitMultiResolutionImageLoad();
}
static void testToolkitMultiResolutionImageLoad() throws Exception {
File imageFile = new File(IMAGE_NAME_1X);
String fileName = imageFile.getAbsolutePath();
Image image = Toolkit.getDefaultToolkit().getImage(fileName);
SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
toolkit.prepareImage(image, -1, -1, new LoadImageObserver());
final long time = WAIT_TIME + System.currentTimeMillis();
while ((!isImageLoaded || !isRVObserverCalled)
&& System.currentTimeMillis() < time) {
Thread.sleep(50);
}
if(!isImageLoaded){
throw new RuntimeException("Image is not loaded!");
}
if(!isRVObserverCalled){
throw new RuntimeException("Resolution Variant observer is not called!");
}
}
static void generateImages() throws Exception {
if (!new File(IMAGE_NAME_1X).exists()) {
generateImage(1);
}
if (!new File(IMAGE_NAME_2X).exists()) {
generateImage(2);
}
}
static void generateImage(int scale) throws Exception {
BufferedImage image = new BufferedImage(scale * IMAGE_WIDTH, scale * IMAGE_HEIGHT,
BufferedImage.TYPE_INT_RGB);
Graphics g = image.getGraphics();
g.setColor(scale == 1 ? COLOR_1X : COLOR_2X);
g.fillRect(0, 0, scale * IMAGE_WIDTH, scale * IMAGE_HEIGHT);
File file = new File(scale == 1 ? IMAGE_NAME_1X : IMAGE_NAME_2X);
ImageIO.write(image, "png", file);
}
static boolean checkOS() {
return OSInfo.getOSType() == OSInfo.OSType.MACOSX;
}
static class LoadImageObserver implements ImageObserver {
@Override
public boolean imageUpdate(Image img, int infoflags, int x, int y,
int width, int height) {
if (isRVObserver()) {
isRVObserverCalled = true;
SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
Image resolutionVariant = getResolutionVariant(img);
int rvFlags = toolkit.checkImage(resolutionVariant, width, height,
new IdleImageObserver());
if (rvFlags < infoflags) {
throw new RuntimeException("Info flags are greater than"
+ " resolution varint info flags");
}
} else if ((infoflags & ALLBITS) != 0) {
isImageLoaded = true;
}
return (infoflags & ALLBITS) == 0;
}
}
static boolean isRVObserver() {
Exception e = new Exception();
for (StackTraceElement elem : e.getStackTrace()) {
if (elem.getClassName().endsWith("MultiResolutionToolkitImage")) {
return true;
}
}
return false;
}
static class IdleImageObserver implements ImageObserver {
@Override
public boolean imageUpdate(Image img, int infoflags, int x, int y,
int width, int height) {
return false;
}
}
static Image getResolutionVariant(Image image) {
return ((MultiResolutionToolkitImage) image).getResolutionVariant();
}
}
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