--- /dev/null 2013-11-11 19:47:14.000000000 +0400 +++ new/src/share/classes/com/sun/awt/MultiResolutionImage.java 2013-11-11 19:47:13.000000000 +0400 @@ -0,0 +1,66 @@ +/* + * Copyright (c) 2013, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle in the LICENSE file that accompanied this code. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ +package com.sun.awt; + +import java.awt.Image; + +/** + * This interface is designed to provide a set of images at various resolutions. + * + * WARNING: This class is an implementation detail. This API may change + * between update release, and it may even be removed or be moved in some other + * package(s)/class(es). + */ +public interface MultiResolutionImage { + + /** + * Provides an image with necessary resolution which best fits to the given + * image width and height. + * + * The method should be overridden by any class whose instances are intended + * to provide image resolution variants according to the given image width + * and height. For example, + *
+     * {@code
+     *  public class ScaledImage extends BufferedImage
+     *         implements MultiResolutionImage {
+     *    @Override
+     *    public Image getResolutionVariant(int width, int height) {
+     *      return ((width <= getWidth() && height <= getHeight()))
+     *             ? this : highResolutionImage;
+     *    }
+     *  }
+     * }
+ * + * It is recomended to cache image variants for performance reasons. + * + * @param width the desired image resolution width. + * @param height the desired image resolution height. + * @return image resolution variant. + * + * @since JDK1.8 + */ + public Image getResolutionVariant(int width, int height); +}