DrawStrSuper.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2008, 2016, 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 6684056
28 * @summary Super-scripted text needs to be positioned the same with
29 *          drawString and TextLayout.
30 */
31import java.awt.*;
32import java.awt.event.*;
33import java.awt.font.*;
34import static java.awt.font.TextAttribute.*;
35import java.awt.geom.AffineTransform;
36import java.awt.image.BufferedImage;
37import java.util.HashMap;
38
39
40public class DrawStrSuper extends Component {
41
42    int angle = 0;
43    static boolean interactive = false;
44
45    int wid=400, hgt=400;
46    BufferedImage bi = null;
47
48    void paintImage() {
49
50        if (bi == null) {
51             bi = new BufferedImage(wid, hgt, BufferedImage.TYPE_INT_RGB);
52        }
53        Graphics2D g2d = bi.createGraphics();
54        g2d.setColor(Color.white);
55        g2d.fillRect(0, 0, wid, hgt);
56        g2d.translate(200, 200);
57
58        Font fnt = new Font("Arial", Font.PLAIN, 20);
59        fnt = fnt.deriveFont(60.0f);
60        HashMap attrMap = new HashMap();
61        AffineTransform aff =
62            AffineTransform.getRotateInstance(angle * Math.PI/180.0);
63        attrMap.put(SUPERSCRIPT, SUPERSCRIPT_SUPER);
64        attrMap.put(TRANSFORM, aff);
65        fnt = fnt.deriveFont(attrMap);
66
67        g2d.setFont(fnt);
68        g2d.setColor(Color.yellow);
69        TextLayout tl = new TextLayout("Text", fnt,g2d.getFontRenderContext());
70        g2d.fill(tl.getBounds());
71
72        g2d.setColor(Color.black);
73        g2d.drawLine(-3, 0, 3, 0);
74        g2d.drawLine(0, -3, 0, 3);
75
76        g2d.setColor(Color.blue);
77        g2d.drawString("Text", 0, 0);
78
79        g2d.setColor(Color.red);
80        tl.draw(g2d,0f,0f);
81
82        // Test BI: should be no blue
83        int blue = Color.blue.getRGB();
84        for (int px=0;px<wid;px++) {
85            for (int py=0;py<hgt;py++) {
86                int rgb = bi.getRGB(px, py);
87                if (rgb == blue) {
88                    throw new RuntimeException
89                        ("Unexpected color : " + Integer.toHexString(rgb) +
90                         " at x=" + px + " y="+ py);
91                }
92            }
93        }
94    }
95
96    @Override
97    public void paint(Graphics g) {
98        paintImage();
99        g.drawImage(bi, 0,0, null);
100    }
101
102
103    static class Runner extends Thread {
104
105        DrawStrSuper dss;
106
107        Runner(DrawStrSuper dss) {
108            this.dss = dss;
109        }
110
111        public void run() {
112            while (true) {
113                if (!interactive && dss.angle > 360) {
114                    return;
115                }
116                try {
117                    Thread.sleep(100);
118                } catch (InterruptedException e) {
119                    return;
120                }
121
122                dss.angle += 10;
123                dss.repaint();
124            }
125        }
126    }
127
128    @Override
129    public Dimension getPreferredSize() {
130        return new Dimension(400, 400);
131    }
132
133    public static void main(String argv[]) throws InterruptedException {
134        if (argv.length > 0) interactive = true;
135
136        Frame f = new Frame("Text bounds test");
137        f.addWindowListener(new WindowAdapter() {
138            @Override
139            public void windowClosing(WindowEvent e) {
140                System.exit(0);
141            }
142        });
143        DrawStrSuper dss = new DrawStrSuper();
144        f.add(dss, BorderLayout.CENTER);
145        f.pack();
146        f.setLocationRelativeTo(null);
147        f.setVisible(true);
148        Runner runner = new Runner(dss);
149        runner.start();
150        runner.join();
151    }
152}
153