1 /* 2 * Copyright (c) 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 package com.sun.awt; 26 27 import java.awt.Image; 28 29 /** 30 * This interface is designed to provide a set of images at various resolutions. 31 * 32 * <b>WARNING</b>: This class is an implementation detail. This API may change 33 * between update release, and it may even be removed or be moved in some other 34 * package(s)/class(es). 35 */ 36 public interface MultiResolutionImage { 37 38 /** 39 * Provides an image with necessary resolution which best fits to the given 40 * image width and height. 41 * 42 * The method should be overridden by any class whose instances are intended 43 * to provide image resolution variants according to the given image width 44 * and height. For example, 45 * <pre> 46 * {@code 47 * public class ScaledImage extends BufferedImage 48 * implements MultiResolutionImage { 49 * @Override 50 * public Image getResolutionVariant(int width, int height) { 51 * return ((width <= getWidth() && height <= getHeight())) 52 * ? this : highResolutionImage; 53 * } 54 * } 55 * }</pre> 56 * 57 * It is recomended to cache image variants for performance reasons. 58 * 59 * @param width the desired image resolution width. 60 * @param height the desired image resolution height. 61 * @return image resolution variant. 62 * 63 * @since JDK1.8 64 */ 65 public Image getResolutionVariant(int width, int height); 66 }