1 /*

     2  * Copyright (c) 2009, 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.geom.Ellipse2D;

    26 import java.awt.image.BufferedImage;

    27 import java.io.File;

    28 import javax.imageio.ImageIO;

    29 

    30 

    31 public class ScaleTest {

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

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

    34     Graphics2D g = image.createGraphics();

    35 

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

    37     g.setPaint(Color.WHITE);

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

    39     g.scale(.9, .9);

    40     g.setPaint(Color.BLACK);

    41     g.setStroke(new BasicStroke(0.5f));

    42     g.draw(new Ellipse2D.Double(25, 25, 150, 150));

    43 

    44     // To visually check it

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

    46 

    47     boolean nonWhitePixelFound = false;

    48     for (int x = 100; x < 200; ++x) {

    49       if (image.getRGB(x, 90) != Color.WHITE.getRGB()) {

    50         nonWhitePixelFound = true;

    51         break;

    52       }

    53     }

    54     if (!nonWhitePixelFound) {

    55       throw new RuntimeException("A circle is rendered like a 'C' shape.");

    56     }

    57   }

    58 }