1 /*
2  * Copyright (c) 2015, 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
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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
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17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18  *
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22  */
23 
24 /*
25  * @test
26  * @bug 7162125
27  * @summary Test ligatures form on OS X.
28  */
29 
30 import java.awt.Color;
31 import java.awt.Font;
32 import java.awt.Graphics2D;
33 import java.awt.image.BufferedImage;
34 import java.awt.font.TextAttribute;
35 import java.util.HashMap;
36 import java.util.Map;
37 
38 public class OSXLigatureTest {
39 
main(String[] args)40     public static void main(String[] args) {
41         if (!System.getProperty("os.name").startsWith("Mac")) {
42             return;
43         }
44         String ligStr = "ffi";
45         int w = 50, h = 50;
46 
47         BufferedImage bi1 = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
48         Graphics2D bi1Graphics = bi1.createGraphics();
49         bi1Graphics.setColor(Color.white);
50         bi1Graphics.fillRect(0, 0, w, h);
51         bi1Graphics.setColor(Color.black);
52         Font noLigFont = new Font("Gill Sans", Font.PLAIN, 30);
53         bi1Graphics.setFont(noLigFont);
54         bi1Graphics.drawString(ligStr, 10, 40);
55 
56         BufferedImage bi2 = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
57         Graphics2D bi2Graphics = bi2.createGraphics();
58         bi2Graphics.setColor(Color.white);
59         bi2Graphics.fillRect(0, 0, w, h);
60         bi2Graphics.setColor(Color.black);
61         Map<TextAttribute, Object> attributes = new HashMap<>();
62         attributes.put(TextAttribute.LIGATURES, TextAttribute.LIGATURES_ON);
63         Font ligFont = noLigFont.deriveFont(attributes);
64         bi2Graphics.setFont(ligFont);
65         bi2Graphics.drawString(ligStr, 10, 40);
66 
67         boolean same = true;
68         for (int x = 0; x < w; x++) {
69             for (int y = 0; y < h; y++) {
70                 int c1 = bi1.getRGB(x, y);
71                 int c2 = bi2.getRGB(x, y);
72                 same &= (c1 == c2);
73             }
74             if (!same) {
75                break;
76             }
77         }
78         if (same) {
79             throw new RuntimeException("Images do not differ - no ligature");
80         }
81     }
82 }
83