TranslucentJComboBox.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2010, 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
24import javax.swing.*;
25import java.awt.*;
26import java.awt.event.MouseAdapter;
27import java.awt.event.MouseEvent;
28
29/*
30 * @test
31 * @key headful
32 * @bug 8024627
33 * @summary Check if a JComboBox present in a window set with opacity less than
34 *          1.0 shows a translucent drop down
35 * Test Description: Check if TRANSLUCENT translucency type is supported on the
36 *      current platform. Proceed if supported. Show a window which contains an
37 *      JComboBox and set with opacity less than 1.0. Another Window having a canvas
38 *      component drawn with an image can be used as the background for the test
39 *      window. Click on the ComboBox to show the drop down. Check if the drop down
40 *      appears translucent. Repeat this for JWindow, JDialog and JFrame
41 * Expected Result: If TRANSLUCENT Translucency type is supported, the drop down
42 *      should appear translucent.
43 * @author mrkam
44 * @library ../../../../lib/testlibrary
45 * @build Common ExtendedRobot
46 * @run main TranslucentJComboBox
47 */
48
49public class TranslucentJComboBox extends Common {
50
51    JComponent south;
52    JComponent center;
53    JPanel north;
54    volatile boolean southClicked = false;
55
56    public static void main(String[] args) throws Exception {
57        if (checkTranslucencyMode(GraphicsDevice.WindowTranslucency.TRANSLUCENT))
58            for (Class<Window> windowClass: WINDOWS_TO_TEST)
59                new TranslucentJComboBox(windowClass).doTest();
60    }
61
62    public TranslucentJComboBox(Class windowClass) throws Exception {
63        super(windowClass, 0.3f, 1.0f, false);
64    }
65
66    @Override
67    public void initBackgroundFrame() {
68        super.initBackgroundFrame();
69    }
70
71    @Override
72    public void createSwingComponents() {
73        Container contentPane = RootPaneContainer.class.cast(window).getContentPane();
74        window.setLayout(new BorderLayout());
75
76        north = new JPanel();
77        contentPane.add(north, BorderLayout.NORTH);
78
79        center = new JList(new String [] { "Center" });
80        contentPane.add(center, BorderLayout.CENTER);
81
82        JComboBox jComboBox = new JComboBox();
83        for(int i = 0; i < 20; i++) {
84            jComboBox.addItem("item " + i);
85        }
86        south = jComboBox;
87
88        south.addMouseListener(new MouseAdapter() {
89            @Override
90            public void mouseClicked(MouseEvent e) {
91                southClicked = true;
92            }
93        });
94        contentPane.add(south, BorderLayout.SOUTH);
95    }
96
97
98    @Override
99    public void doTest() throws Exception {
100        robot.waitForIdle(delay);
101        // Make window an active
102        Point ls = north.getLocationOnScreen();
103        robot.mouseMove(ls.x + north.getWidth()/2, ls.y + north.getHeight()/2);
104        robot.click();
105
106        // Invoke list
107        ls = south.getLocationOnScreen();
108
109        Point p1 = new Point(
110                (int) (ls.x + south.getWidth() * 0.75),
111                ls.y + south.getHeight() * 3);
112
113        Point p2 = new Point(
114                (int) (ls.x + south.getWidth() * 0.75),
115                ls.y - south.getHeight() * 2);
116
117        Color c1 = robot.getPixelColor(p1.x, p1.y);
118        Color c2 = robot.getPixelColor(p2.x, p2.y);
119
120        int x = ls.x + south.getWidth()/2;
121        int y = ls.y + south.getHeight()/2;
122
123        System.out.println("Trying to click point "+x+", "+y+
124                ", looking for flag to trigger.");
125
126        robot.mouseMove(x, y);
127        robot.waitForIdle(delay);
128        robot.click();
129        robot.waitForIdle(delay);
130
131        if (!southClicked)
132            throw new RuntimeException("Flag is not triggered for point "+x+", "+y+"!");
133
134        robot.waitForIdle();
135
136        Color c1b = robot.getPixelColor(p1.x, p1.y);
137        Color c2b = robot.getPixelColor(p2.x, p2.y);
138
139        if (!c1.equals(c1b) && !south.getBackground().equals(c1b))
140            throw new RuntimeException(
141                    "Check for opaque drop down failed at point " + p1 +
142                            ". Before click: " + c1 + ", after click: " + c1b +
143                            ", expected is " + south.getBackground());
144
145        if (!c2.equals(c2b) && !south.getBackground().equals(c2b))
146            throw new RuntimeException(
147                    "Check for opaque drop down failed at point " + p2 +
148                            ". Before click: " + c2 + ", after click: " + c2b +
149                            ", expected is " + south.getBackground());
150
151        EventQueue.invokeAndWait(this::dispose);
152    }
153}
154