1 /*
   2  * Copyright (c) 2014, 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 import java.awt.Component;
  25 import java.awt.Dimension;
  26 import java.awt.Rectangle;
  27 import java.awt.Toolkit;
  28 import javax.swing.JComponent;
  29 import javax.swing.JFrame;
  30 import javax.swing.JPanel;
  31 import javax.swing.JTabbedPane;
  32 import javax.swing.JViewport;
  33 import javax.swing.SwingUtilities;
  34 import javax.swing.UIManager;
  35 import javax.swing.plaf.metal.MetalLookAndFeel;
  36 
  37 
  38 /**
  39  * @test
  40  * @key headful
  41  * @bug 7170310
  42  * @author Alexey Ivanov
  43  * @summary Selected tab should be scrolled into view.
  44  * @library ../../../../lib/testlibrary/
  45  * @build ExtendedRobot
  46  * @run main bug7170310
  47  */
  48 
  49 public class bug7170310 {
  50     private static final int TABS_NUMBER = 3;
  51 
  52     private static volatile JTabbedPane tabbedPane;
  53     private static volatile int count = 1;
  54 
  55     private static volatile JFrame frame;
  56 
  57     private static volatile Exception exception = null;
  58 
  59     public static void main(String[] args) throws Exception {
  60         try {
  61             UIManager.setLookAndFeel(new MetalLookAndFeel());
  62             SwingUtilities.invokeAndWait(bug7170310::createAndShowUI);
  63 
  64             sync();
  65 
  66             for (int i = 0; i < TABS_NUMBER; i++) {
  67                 SwingUtilities.invokeAndWait(bug7170310::addTab);
  68                 sync();
  69             }
  70 
  71             SwingUtilities.invokeAndWait(bug7170310::check);
  72 
  73             if (exception != null) {
  74                 System.out.println("Test failed: " + exception.getMessage());
  75                 throw exception;
  76             } else {
  77                 System.out.printf("Test passed");
  78             }
  79         } finally {
  80             if (frame != null) { frame.dispose(); }
  81         }
  82     }
  83 
  84     private static void createAndShowUI() {
  85         frame = new JFrame("bug7170310");
  86         frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  87         frame.setSize(200, 100);
  88 
  89         tabbedPane = new JTabbedPane();
  90         tabbedPane.addTab("Main Tab", new JPanel());
  91 
  92         tabbedPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
  93 
  94         frame.getContentPane().add(tabbedPane);
  95         frame.setVisible(true);
  96     }
  97 
  98     private static void addTab() {
  99         tabbedPane.addTab("Added Tab " + count++, new JPanel());
 100         tabbedPane.setSelectedIndex(tabbedPane.getTabCount() - 1);
 101     }
 102 
 103     private static void check() {
 104         try {
 105             JViewport vp = null;
 106             for (Component c : tabbedPane.getComponents()) {
 107                 if (c instanceof JViewport) {
 108                     vp = (JViewport) c;
 109                     break;
 110                 }
 111             }
 112 
 113             JComponent v = (JComponent) vp.getView();
 114             Rectangle vr = vp.getViewRect();
 115             Dimension vs = v.getSize();
 116 
 117             // The tab view must be scrolled to the end so that the last tab is visible
 118             if (vs.width != (vr.x + vr.width)) {
 119                 throw new RuntimeException("tabScroller.tabPanel view is positioned incorrectly: "
 120                         + vs.width + " vs " + (vr.x + vr.width));
 121             }
 122         } catch (Exception e) {
 123             exception = e;
 124         }
 125     }
 126     private static void sync() {
 127         try {
 128              ExtendedRobot robot = new ExtendedRobot();
 129              robot.waitForIdle(300);
 130          }catch(Exception ex) {
 131              ex.printStackTrace();
 132              throw new Error("Unexpected Failure");
 133          }
 134     }
 135 }