1/*
2 * Copyright (c) 2010, 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  @bug 6783910
27  @summary java.awt.Color.brighter()/darker() methods make color opaque
28  @author Andrei Dmitriev: area=awt-color
29  @run main OpacityChange
30*/
31
32import java.awt.*;
33
34public class OpacityChange {
35    private final static int INITIAL_ALPHA = 125;
36
37    public static void main(String argv[]) {
38        Color color = new Color(20, 20, 20, INITIAL_ALPHA);
39        System.out.println("Initial alpha: " + color.getAlpha());
40        Color colorBrighter = color.brighter();
41        System.out.println("New alpha (after brighter): " + colorBrighter.getAlpha());
42
43        Color colorDarker = color.darker();
44        System.out.println("New alpha (after darker): " + colorDarker.getAlpha());
45
46
47        if (INITIAL_ALPHA != colorBrighter.getAlpha()) {
48            throw new RuntimeException("Brighter color alpha has changed from : " +INITIAL_ALPHA + " to " + colorBrighter.getAlpha());
49        }
50        if (INITIAL_ALPHA != colorDarker.getAlpha()) {
51            throw new RuntimeException("Darker color alpha has changed from : " +INITIAL_ALPHA + " to " + colorDarker.getAlpha());
52        }
53    }
54}
55