1 /*

     2  * Copyright 2009 Sun Microsystems, Inc.  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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,

    20  * CA 95054 USA or visit www.sun.com if you need additional information or

    21  * have any questions.

    22  */

    23 import java.awt.*;

    24 import java.awt.geom.Ellipse2D;

    25 import java.awt.geom.GeneralPath;

    26 import java.awt.image.BufferedImage;

    27 import java.io.File;

    28 

    29 import javax.imageio.ImageIO;

    30 

    31 /**

    32  * @author chrisn@google.com (Chris Nokleberg)

    33  * @author yamauchi@google.com (Hiroshi Yamauchi)

    34  */

    35 public class StrokeShapeTest {

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

    37     BufferedImage image = new BufferedImage(200, 200, BufferedImage.TYPE_INT_RGB);

    38     Graphics2D g = image.createGraphics();

    39     g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);

    40     g.setPaint(Color.WHITE);

    41     g.fill(new Rectangle(image.getWidth(), image.getHeight()));

    42     g.translate(25, 100);

    43 

    44     Stroke stroke = new BasicStroke(200, BasicStroke.CAP_ROUND, BasicStroke.JOIN_ROUND);

    45     Shape shape = new Polygon(new int[] {0, 1500, 0}, new int[] {750, 0, -750}, 3);

    46 

    47     g.scale(.1, .1);

    48     g.setPaint(Color.BLACK);

    49     g.setStroke(stroke);

    50     g.draw(shape);

    51     g.setPaint(Color.RED);

    52     g.fill(stroke.createStrokedShape(shape));

    53 

    54     // To visually check it

    55     //ImageIO.write(image, "PNG", new File(args[0]));

    56 

    57     boolean blackPixelFound = false;

    58     outer:

    59     for (int x = 0; x < 200; ++x) {

    60       for (int y = 0; y < 200; ++y) {

    61         if (image.getRGB(x, y) == Color.BLACK.getRGB()) {

    62           blackPixelFound = true;

    63           break outer;

    64         }

    65       }

    66     }

    67     if (blackPixelFound) {

    68       throw new RuntimeException("The shape hasn't been filled in red.");

    69     }

    70   }

    71 }