1 /* 2 * Copyright (c) 1997, 2013, 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. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 package java.awt; 27 28 import java.lang.annotation.Native; 29 30 /** 31 * The <code>Transparency</code> interface defines the common transparency 32 * modes for implementing classes. 33 */ 34 public interface Transparency { 35 36 /** 37 * Represents image data that is guaranteed to be completely opaque, 38 * meaning that all pixels have an alpha value of 1.0. 39 */ 40 @Native public final static int OPAQUE = 1; 41 42 /** 43 * Represents image data that is guaranteed to be either completely 44 * opaque, with an alpha value of 1.0, or completely transparent, 45 * with an alpha value of 0.0. 46 */ 47 @Native public final static int BITMASK = 2; 48 49 /** 50 * Represents image data that contains or might contain arbitrary 51 * alpha values between and including 0.0 and 1.0. 52 */ 53 @Native public final static int TRANSLUCENT = 3; 54 55 /** 56 * Returns the type of this <code>Transparency</code>. 57 * @return the field type of this <code>Transparency</code>, which is 58 * either OPAQUE, BITMASK or TRANSLUCENT. 59 */ 60 public int getTransparency(); 61 }