1/*
2 * Copyright (c) 2015, 2017, 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 * @key headful
27 * @bug 8064833
28 * @summary Test correct font is obtained via famil+style
29 * @run main HelvLtOblTest
30 */
31
32import javax.swing.JComponent;
33import javax.swing.JFrame;
34import javax.swing.SwingUtilities;
35import java.awt.Color;
36import java.awt.Dimension;
37import java.awt.Font;
38import java.awt.Graphics;
39import java.awt.Graphics2D;
40import java.awt.GraphicsEnvironment;
41import java.awt.RenderingHints;
42import java.awt.font.FontRenderContext;
43import java.awt.font.GlyphVector;
44import java.awt.image.BufferedImage;
45
46public class HelvLtOblTest extends JComponent {
47
48    static Font helvFont = null;
49
50    static int[] codes = { 0x23, 0x4a, 0x48, 0x3, 0x4a, 0x55, 0x42, 0x4d,
51                    0x4a, 0x44, 0x3,
52                    0x53, 0x46, 0x45, 0x3, 0x55, 0x46, 0x59, 0x55, };
53
54    static String str = "Big italic red text";
55
56    public static void main(String[] args) throws Exception {
57        String os = System.getProperty("os.name");
58        if (!os.startsWith("Mac")) {
59             return;
60        }
61        GraphicsEnvironment ge = GraphicsEnvironment.getLocalGraphicsEnvironment();
62        Font[] fonts = ge.getAllFonts();
63        for (int i=0; i<fonts.length; i++) {
64            if (fonts[i].getPSName().equals("Helvetica-LightOblique")) {
65                 helvFont = fonts[i];
66                 break;
67            }
68        }
69        if (helvFont == null) {
70            return;
71        }
72        final HelvLtOblTest test = new HelvLtOblTest();
73        SwingUtilities.invokeLater(() -> {
74            JFrame f = new JFrame();
75            f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
76            f.add("Center", test);
77            f.pack();
78            f.setVisible(true);
79        });
80        test.compareImages();
81    }
82
83    public Dimension getPreferredSize() {
84      return new Dimension(400,400);
85    }
86
87    public void paintComponent(Graphics g) {
88         super.paintComponent(g);
89         Graphics2D g2 = (Graphics2D)g;
90         FontRenderContext frc = new FontRenderContext(null, true, true);
91         Font f = helvFont.deriveFont(Font.PLAIN, 40);
92         System.out.println("font = " +f.getFontName());
93         GlyphVector gv = f.createGlyphVector(frc, codes);
94         g.setFont(f);
95         g.setColor(Color.white);
96         g.fillRect(0,0,400,400);
97         g.setColor(Color.black);
98         g2.drawGlyphVector(gv, 5,200);
99         g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
100                             RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
101         g2.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
102                             RenderingHints.VALUE_FRACTIONALMETRICS_ON);
103         g2.drawString(str, 5, 250);
104    }
105
106    void compareImages() {
107         BufferedImage bi0 = drawText(false);
108         BufferedImage bi1 = drawText(true);
109         compare(bi0, bi1);
110    }
111
112    BufferedImage drawText(boolean doGV) {
113        int w = 400;
114        int h = 50;
115        BufferedImage bi = new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
116        Graphics2D g = bi.createGraphics();
117        g.setColor(Color.white);
118        g.fillRect(0,0,w,h);
119        g.setColor(Color.black);
120        Font f = helvFont.deriveFont(Font.PLAIN, 40);
121        g.setFont(f);
122        int x = 5;
123        int y = h - 10;
124        if (doGV) {
125            FontRenderContext frc = new FontRenderContext(null, true, true);
126            GlyphVector gv = f.createGlyphVector(frc, codes);
127            g.drawGlyphVector(gv, 5, y);
128       } else {
129           g.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING,
130                              RenderingHints.VALUE_TEXT_ANTIALIAS_ON);
131           g.setRenderingHint(RenderingHints.KEY_FRACTIONALMETRICS,
132                              RenderingHints.VALUE_FRACTIONALMETRICS_ON);
133           g.drawString(str, x, y);
134       }
135       return bi;
136    }
137
138    // Need to allow for minimal rounding error, so allow each component
139    // to differ by 1.
140    void compare(BufferedImage bi0, BufferedImage bi1) {
141        int wid = bi0.getWidth();
142        int hgt = bi0.getHeight();
143        for (int x=0; x<wid; x++) {
144            for (int y=0; y<hgt; y++) {
145                int rgb0 = bi0.getRGB(x, y);
146                int rgb1 = bi1.getRGB(x, y);
147                if (rgb0 == rgb1) continue;
148                int r0 = (rgb0 & 0xff0000) >> 16;
149                int r1 = (rgb1 & 0xff0000) >> 16;
150                int rdiff = r0-r1; if (rdiff<0) rdiff = -rdiff;
151                int g0 = (rgb0 & 0x00ff00) >> 8;
152                int g1 = (rgb1 & 0x00ff00) >> 8;
153                int gdiff = g0-g1; if (gdiff<0) gdiff = -gdiff;
154                int b0 = (rgb0 & 0x0000ff);
155                int b1 = (rgb1 & 0x0000ff);
156                int bdiff = b0-b1; if (bdiff<0) bdiff = -bdiff;
157                if (rdiff > 1 || gdiff > 1 || bdiff > 1) {
158                    throw new RuntimeException(
159                      "Images differ at x=" + x + " y="+ y + " " +
160                      Integer.toHexString(rgb0) + " vs " +
161                      Integer.toHexString(rgb1));
162                }
163            }
164        }
165    }
166
167}
168