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/*
* Copyright (c) 2013, 2016, 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.*;
import java.awt.MultipleGradientPaint.*;
import java.awt.geom.*;
import java.awt.image.*;
/**
* @test
* @key headful
* @bug 8023483
* @summary tests if the transform-parameter is applied correctly when creating
* a gradient.
* @author ceisserer
*/
public class GradientTransformTest extends Frame {
BufferedImage srcImg;
Image dstImg;
public GradientTransformTest() {
srcImg = createSrcImage();
dstImg = getGraphicsConfiguration().createCompatibleVolatileImage(20,
20);
}
protected void renderToVI(BufferedImage src, Image dst) {
Graphics2D g = (Graphics2D) dst.getGraphics();
g.setColor(Color.WHITE);
g.fillRect(0, 0, dst.getWidth(null), dst.getHeight(null));
AffineTransform at = new AffineTransform();
at.translate(-100, 0);
g.setPaint(new LinearGradientPaint(new Point2D.Float(100, 0),
new Point2D.Float(120, 0), new float[] { 0.0f, 0.75f, 1.0f },
new Color[] { Color.red, Color.green, Color.blue },
CycleMethod.NO_CYCLE, ColorSpaceType.SRGB, at));
g.fillRect(-10, -10, 30, 30);
}
public void paint(Graphics g1) {
Graphics2D g = (Graphics2D) g1;
renderToVI(createSrcImage(), dstImg);
g.drawImage(dstImg, 20, 20, null);
}
public void showFrame() {
setSize(500, 500);
setVisible(true);
}
public void test() {
renderToVI(createSrcImage(), dstImg);
BufferedImage validationImg = new BufferedImage(20, 20,
BufferedImage.TYPE_INT_RGB);
Graphics2D valG = (Graphics2D) validationImg.getGraphics();
valG.drawImage(dstImg, 0, 0, null);
// Loop over all pixel, and count the different pixel values
// encountered.
boolean gradientTranslated = false;
for (int x = 0; x < validationImg.getWidth() && !gradientTranslated; x++) {
for (int y = 0; y < validationImg.getHeight()
&& !gradientTranslated; y++) {
int rgb = validationImg.getRGB(x, y);
if (rgb != -65279) {
gradientTranslated = true;
}
}
}
if (gradientTranslated) {
System.out.println("Passed!");
} else {
throw new RuntimeException("Test FAILED!");
}
}
protected BufferedImage createSrcImage() {
BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);
Graphics2D g = (Graphics2D) bi.getGraphics();
g.setColor(Color.YELLOW);
g.fillRect(0, 0, 10, 10);
g.setColor(Color.black);
g.drawLine(0, 0, 10, 10);
return bi;
}
public static void main(String[] args) throws Exception {
boolean show = (args.length > 0 && "-show".equals(args[0]));
final GradientTransformTest t = new GradientTransformTest();
if (show) {
EventQueue.invokeAndWait(new Runnable() {
public void run() {
t.showFrame();
}
});
} else {
t.test();
}
}
}
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