1 /*
   2  * Copyright (c) 2018, 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 /*
  25  * @test
  26  * @bug 8204929
  27  * @summary test rotation of font with embedded bitmaps
  28  * @run main GlyphRotationTest
  29  */
  30 
  31 import java.awt.Color;
  32 import java.awt.Font;
  33 import java.awt.Graphics2D;
  34 import java.awt.geom.AffineTransform;
  35 import java.awt.image.BufferedImage;
  36 import javax.imageio.ImageIO;
  37 
  38 public class GlyphRotationTest {
  39 
  40     public static final String fontName = "MS UI Gothic";
  41     public static Font font;
  42     public static final int SZ = 50;
  43 
  44     public static void main(String[] args) {
  45         font = new Font(fontName, Font.PLAIN, 15);
  46         if (!font.getFamily(java.util.Locale.ENGLISH).equals(fontName)) {
  47             return;
  48         }
  49         BufferedImage bi = new BufferedImage(SZ,SZ,BufferedImage.TYPE_INT_RGB);
  50         Graphics2D g2d = bi.createGraphics();
  51         g2d.setColor(Color.white);
  52         g2d.fillRect(0, 0, SZ, SZ);
  53         g2d.setColor(Color.black);
  54         g2d.setFont(font);
  55         g2d.drawString("1", SZ/2, SZ/2);
  56         int pixCnt1 = countPixels(bi);
  57         AffineTransform at = AffineTransform.getRotateInstance(Math.PI/2);
  58         font = font.deriveFont(Font.PLAIN, at);
  59         g2d.setFont(font);
  60         g2d.drawString("1", SZ/2, SZ/2);
  61         int pixCnt2 = countPixels(bi);
  62         if (args.length > 0) {
  63             try {
  64                ImageIO.write(bi, "png", new java.io.File("im.png"));
  65             }  catch (Exception e) {}
  66         }
  67         if (pixCnt1 == pixCnt2) {
  68             String msg = "cnt 1 = " + pixCnt1 + " cnt 2 = " + pixCnt2;
  69             throw new RuntimeException(msg);
  70         }
  71     }
  72  
  73     static int countPixels(BufferedImage bi) {
  74         int cnt = 0;
  75         int w = bi.getWidth(null);
  76         int h = bi.getHeight(null);
  77         for (int i=0; i<w; i++) {
  78             for (int j=0; j<w; j++) {
  79                 int rgb = bi.getRGB(i, j) & 0xFFFFFF;
  80                 if (rgb == 0) {
  81                     cnt++;
  82                 }
  83             }
  84         }
  85         return cnt;
  86     }
  87 }