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 }