1 /* |
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2 * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. |
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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4 * |
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5 * This code is free software; you can redistribute it and/or modify it |
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6 * under the terms of the GNU General Public License version 2 only, as |
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7 * published by the Free Software Foundation. |
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8 * |
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9 * This code is distributed in the hope that it will be useful, but WITHOUT |
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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12 * version 2 for more details (a copy is included in the LICENSE file that |
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13 * accompanied this code). |
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14 * |
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15 * You should have received a copy of the GNU General Public License version |
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16 * 2 along with this work; if not, write to the Free Software Foundation, |
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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18 * |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
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22 */ |
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23 import java.awt.*; |
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24 import java.awt.geom.Ellipse2D; |
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25 import java.awt.image.BufferedImage; |
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26 import java.io.File; |
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27 import javax.imageio.ImageIO; |
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28 |
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29 /** |
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30 * @author chrisn@google.com (Chris Nokleberg) |
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31 * @author yamauchi@google.com (Hiroshi Yamauchi) |
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32 */ |
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33 public class ThinLineTest { |
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34 private static final int PIXEL = 381; |
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35 |
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36 public static void main(String[] args) throws Exception { |
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37 BufferedImage image = new BufferedImage(200, 200, BufferedImage.TYPE_INT_RGB); |
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38 Graphics2D g = image.createGraphics(); |
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39 |
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40 g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); |
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41 g.setPaint(Color.WHITE); |
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42 g.fill(new Rectangle(image.getWidth(), image.getHeight())); |
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43 |
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44 g.scale(0.5 / PIXEL, 0.5 / PIXEL); |
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45 g.setPaint(Color.BLACK); |
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46 g.setStroke(new BasicStroke(PIXEL)); |
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47 g.draw(new Ellipse2D.Double(PIXEL * 50, PIXEL * 50, PIXEL * 300, PIXEL * 300)); |
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48 |
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49 // To visually check it |
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50 //ImageIO.write(image, "PNG", new File(args[0])); |
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51 |
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52 boolean nonWhitePixelFound = false; |
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53 for (int x = 0; x < 200; ++x) { |
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54 if (image.getRGB(x, 100) != Color.WHITE.getRGB()) { |
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55 nonWhitePixelFound = true; |
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56 break; |
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57 } |
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58 } |
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59 if (!nonWhitePixelFound) { |
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60 throw new RuntimeException("The thin line disappeared."); |
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61 } |
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62 } |
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63 } |
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