1 /*

     2  * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved.

     3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

     4  *

     5  * This code is free software; you can redistribute it and/or modify it

     6  * under the terms of the GNU General Public License version 2 only, as

     7  * published by the Free Software Foundation.

     8  *

     9  * This code is distributed in the hope that it will be useful, but WITHOUT

    10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

    11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

    12  * version 2 for more details (a copy is included in the LICENSE file that

    13  * accompanied this code).

    14  *

    15  * You should have received a copy of the GNU General Public License version

    16  * 2 along with this work; if not, write to the Free Software Foundation,

    17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

    18  *

    19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

    20  * or visit www.oracle.com if you need additional information or have any

    21  * questions.

    22  */

    23 

    24 import java.awt.*;

    25 import java.awt.MultipleGradientPaint.*;

    26 import java.awt.geom.*;

    27 import java.awt.image.*;

    28 

    29 /**

    30  * @test

    31  * @bug 8023483

    32  * @summary tests wether the colorspace-parameter is applied correctly when

    33  *          creating a gradient.

    34  * @author ceisserer

    35  */

    36 public class LinearColorSpaceGradientTest extends Frame {

    37     BufferedImage srcImg;

    38     Image dstImg;

    39 

    40     public LinearColorSpaceGradientTest() {

    41         srcImg = createSrcImage();

    42         dstImg = getGraphicsConfiguration().createCompatibleVolatileImage(20,

    43                 20);

    44     }

    45 

    46     protected void renderToVI(BufferedImage src, Image dst) {

    47         Graphics2D g = (Graphics2D) dst.getGraphics();

    48 

    49         g.setColor(Color.WHITE);

    50         g.fillRect(0, 0, dst.getWidth(null), dst.getHeight(null));

    51 

    52         AffineTransform at = new AffineTransform();

    53         g.setPaint(new LinearGradientPaint(new Point2D.Float(0, 0),

    54                 new Point2D.Float(20, 0), new float[] { 0.0f, 1.0f },

    55                 new Color[] { Color.green, Color.blue }, CycleMethod.NO_CYCLE,

    56                 ColorSpaceType.LINEAR_RGB, at));

    57 

    58         g.fillRect(-10, -10, 30, 30);

    59     }

    60 

    61     public void paint(Graphics g1) {

    62         Graphics2D g = (Graphics2D) g1;

    63         renderToVI(createSrcImage(), dstImg);

    64         g.drawImage(dstImg, 20, 20, null);

    65     }

    66 

    67     public void showFrame() {

    68         setSize(500, 500);

    69         setVisible(true);

    70     }

    71 

    72     public void test() {

    73         renderToVI(createSrcImage(), dstImg);

    74 

    75         BufferedImage validationImg = new BufferedImage(20, 20,

    76                 BufferedImage.TYPE_INT_RGB);

    77         Graphics2D valG = (Graphics2D) validationImg.getGraphics();

    78         valG.drawImage(dstImg, 0, 0, null);

    79 

    80         int b = validationImg.getRGB(10, 10) & 0x000000FF;

    81 

    82         if (b > 150) {

    83             System.out.println("Passed!");

    84         } else {

    85             throw new RuntimeException("Test FAILED!");

    86         }

    87     }

    88 

    89     protected BufferedImage createSrcImage() {

    90         BufferedImage bi = new BufferedImage(10, 10, BufferedImage.TYPE_INT_RGB);

    91         Graphics2D g = (Graphics2D) bi.getGraphics();

    92         g.setColor(Color.YELLOW);

    93         g.fillRect(0, 0, 10, 10);

    94         g.setColor(Color.black);

    95         g.drawLine(0, 0, 10, 10);

    96         return bi;

    97     }

    98 

    99     public static void main(String[] args) throws Exception {

   100         boolean show = (args.length > 0 && "-show".equals(args[0]));

   101 

   102         final LinearColorSpaceGradientTest t = new LinearColorSpaceGradientTest();

   103         if (show) {

   104             EventQueue.invokeAndWait(new Runnable() {

   105                 public void run() {

   106                     t.showFrame();

   107                 }

   108             });

   109         } else {

   110             t.test();

   111         }

   112     }

   113 }