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