1 /*
2 * Copyright (c) 2019, Red Hat, Inc.
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 8218854
27 * @modules java.desktop/sun.font
28 * @requires jdk.version.major >= 8
29 * @run main/othervm MaxAdvanceIsMax
30 */
31
32 import java.awt.*;
33 import sun.font.FontDesignMetrics;
34 import java.awt.font.FontRenderContext;
35 import java.awt.geom.AffineTransform;
36
37 public class MaxAdvanceIsMax {
38
39 private static boolean debug = true;
40
41 private static Font[] fonts;
42
43 private static final class MyFontRenderContext extends FontRenderContext {
44
45 private String asString = "";
46
47 MyFontRenderContext(AffineTransform tx, Object aaHint, Object fmHint) {
48 super(tx, aaHint, fmHint);
49 if (aaHint.equals(
50 RenderingHints.VALUE_TEXT_ANTIALIAS_OFF)) {
51 asString += "FT_LOAD_TARGET_MONO";
52 } else if (aaHint.equals(
53 RenderingHints.VALUE_TEXT_ANTIALIAS_ON)) {
54 asString += "FT_LOAD_TARGET_NORMAL";
55 } else if (aaHint.equals(
56 RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB)) {
57 asString += "FT_LOAD_TARGET_LCD";
58 } else if (aaHint.equals(
59 RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VRGB)) {
60 asString += "FT_LOAD_TARGET_LCD_V";
61 }
62 }
63
64 public String toString() {
65 return asString;
66 }
67 }
68
69 private static final FontRenderContext[] renderingContexts =
70 new FontRenderContext[]{
71 new MyFontRenderContext(null,
72 RenderingHints.VALUE_TEXT_ANTIALIAS_OFF,
73 RenderingHints.VALUE_FRACTIONALMETRICS_OFF),
74 new MyFontRenderContext(null,
75 RenderingHints.VALUE_TEXT_ANTIALIAS_ON,
76 RenderingHints.VALUE_FRACTIONALMETRICS_OFF),
77 new MyFontRenderContext(null,
78 RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_HRGB,
79 RenderingHints.VALUE_FRACTIONALMETRICS_OFF),
80 new MyFontRenderContext(null,
81 RenderingHints.VALUE_TEXT_ANTIALIAS_LCD_VRGB,
82 RenderingHints.VALUE_FRACTIONALMETRICS_OFF),
83 };
84
85 private static final class StyleAndSize {
86 int style;
87 float size;
88 public StyleAndSize(int style, float size) {
89 this.style = style;
90 this.size = size;
91 }
92 };
93
94 private static final StyleAndSize[] stylesAndSizes = new StyleAndSize[] {
95 new StyleAndSize(Font.BOLD | Font.ITALIC, 1)
96 };
97
98 private static final void loadFonts() {
99 try {
100 GraphicsEnvironment e =
101 GraphicsEnvironment.getLocalGraphicsEnvironment();
102 fonts = e.getAllFonts();
103 } catch (Exception e) {}
104 }
105
106 public static void main(String[] args) throws Exception {
107 loadFonts();
108 for (FontRenderContext renderingContext : renderingContexts) {
109 for (Font f : fonts) {
110 for (StyleAndSize styleAndSize : stylesAndSizes) {
111 f = f.deriveFont(styleAndSize.style, styleAndSize.size);
112 FontDesignMetrics fm = FontDesignMetrics.getMetrics(f,
113 renderingContext);
114 int[] width;
115 int maxWidth = -1;
116 int maxAdvance = fm.getMaxAdvance();
117 if (debug) {
118 System.out.println("Testing " + f + " in " +
119 renderingContext);
120 System.out.println("getMaxAdvance: " + maxAdvance);
121 }
122 if (maxAdvance != -1) {
123 String failureMessage = null;
124 width = fm.getWidths();
125 for (int j = 0; j < width.length; j++) {
126 if (width[j] > maxWidth) {
127 maxWidth = width[j];
128 }
129 if (width[j] > maxAdvance) {
130 failureMessage = "FAILED: getMaxAdvance is " +
131 "not max for font: " +
132 f.toString() +
133 " getMaxAdvance(): " +
134 maxAdvance +
135 "getWidths()[" + j + "]: " +
136 width[j];
137 throw new Exception(failureMessage);
138 }
139 }
140 }
141 if (debug) {
142 System.out.println("Max char width: " + maxWidth);
143 System.out.println("PASSED");
144 System.out.println(".........................");
145 }
146 }
147 }
148 }
149 System.out.println("TEST PASS - OK");
150 }
151 }