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