bug7170310.java revision 11018:66682f651425 
1/*
2 * Copyright (c) 2014, 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
24import java.awt.Component;
25import java.awt.Dimension;
26import java.awt.Rectangle;
27import java.awt.Toolkit;
28import javax.swing.JComponent;
29import javax.swing.JFrame;
30import javax.swing.JPanel;
31import javax.swing.JTabbedPane;
32import javax.swing.JViewport;
33import javax.swing.SwingUtilities;
34import javax.swing.UIManager;
35import javax.swing.plaf.metal.MetalLookAndFeel;
36
37
38/**
39 * @test
40 * @bug 7170310
41 * @author Alexey Ivanov
42 * @summary Selected tab should be scrolled into view.
43 * @library ../../../../lib/testlibrary/
44 * @build ExtendedRobot
45 * @run main bug7170310
46 */
47public class bug7170310 {
48    private static final int TABS_NUMBER = 3;
49
50    private static volatile JTabbedPane tabbedPane;
51    private static volatile int count = 1;
52
53    private static volatile JFrame frame;
54
55    private static volatile Exception exception = null;
56
57    public static void main(String[] args) throws Exception {
58        try {
59            UIManager.setLookAndFeel(new MetalLookAndFeel());
60            SwingUtilities.invokeAndWait(bug7170310::createAndShowUI);
61
62            sync();
63
64            for (int i = 0; i < TABS_NUMBER; i++) {
65                SwingUtilities.invokeAndWait(bug7170310::addTab);
66                sync();
67            }
68
69            SwingUtilities.invokeAndWait(bug7170310::check);
70
71            if (exception != null) {
72                System.out.println("Test failed: " + exception.getMessage());
73                throw exception;
74            } else {
75                System.out.printf("Test passed");
76            }
77        } finally {
78            frame.dispose();
79        }
80    }
81
82    private static void createAndShowUI() {
83        frame = new JFrame("bug7170310");
84        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
85        frame.setSize(200, 100);
86
87        tabbedPane = new JTabbedPane();
88        tabbedPane.addTab("Main Tab", new JPanel());
89
90        tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
91
92        frame.getContentPane().add(tabbedPane);
93        frame.setVisible(true);
94    }
95
96    private static void addTab() {
97        tabbedPane.addTab("Added Tab " + count++, new JPanel());
98        tabbedPane.setSelectedIndex(tabbedPane.getTabCount() - 1);
99    }
100
101    private static void check() {
102        try {
103            JViewport vp = null;
104            for (Component c : tabbedPane.getComponents()) {
105                if (c instanceof JViewport) {
106                    vp = (JViewport) c;
107                    break;
108                }
109            }
110
111            JComponent v = (JComponent) vp.getView();
112            Rectangle vr = vp.getViewRect();
113            Dimension vs = v.getSize();
114
115            // The tab view must be scrolled to the end so that the last tab is visible
116            if (vs.width != (vr.x + vr.width)) {
117                throw new RuntimeException("tabScroller.tabPanel view is positioned incorrectly: "
118                        + vs.width + " vs " + (vr.x + vr.width));
119            }
120        } catch (Exception e) {
121            exception = e;
122        }
123    }
124    private static void sync() {
125        try {
126             ExtendedRobot robot = new ExtendedRobot();
127             robot.waitForIdle(300);
128         }catch(Exception ex) {
129             ex.printStackTrace();
130             throw new Error("Unexpected Failure");
131         }
132    }
133}
134