1 /*
2 * Copyright (c) 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 * @test
25 * @bug 8191428
26 * @summary Verifies if text view is not borken into multiple lines
27 * @run main/othervm -Dsun.java2d.uiScale=1.2 TestGlyphBreak
28 */
29
30 import java.awt.FontMetrics;
31 import javax.swing.JButton;
32 import javax.swing.JFrame;
33 import javax.swing.SwingUtilities;
34
35 public class TestGlyphBreak {
36
37 static JFrame f;
38 static int btnHeight;
39 static FontMetrics fm;
40
41 public static void main(String[] args) throws Exception {
42
43 SwingUtilities.invokeAndWait(() -> {
44
45 String str = "<html><font size=2 color=red><bold>Three!</font></html>";
46 JButton b = new JButton();
47 b.setText(str);
48
49 f = new JFrame();
50 f.add(b);
51 f.pack();
52 f.setVisible(true);
53 btnHeight = b.getHeight();
54 fm = b.getFontMetrics(b.getFont());
55
56 });
57
58 try {
59 Thread.sleep(2000);
60 } catch (InterruptedException ex) {
61 }
62 SwingUtilities.invokeAndWait(() -> f.dispose());
63 System.out.println("metrics getHeight " + fm.getHeight() +
64 " button height " + btnHeight);
65
66 // Check if text is broken into 2 lines, in which case button height
67 // will be twice the string height
68 if (btnHeight > 2*fm.getHeight()) {
69 throw new RuntimeException("TextView is broken into different lines");
70 }
71 }
72 }