--- a/jdk/src/share/classes/sun/awt/image/MultiResolutionBufferedImage.java Tue May 27 16:39:05 2014 -0600
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,185 +0,0 @@
-/*
- * Copyright (c) 2014, 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 sun.awt.image;
-
-import java.awt.Dimension;
-import java.awt.Image;
-import java.awt.Graphics;
-import java.awt.geom.Dimension2D;
-import java.awt.image.BufferedImage;
-import java.awt.image.ImageObserver;
-import java.util.Arrays;
-import java.util.List;
-import java.util.function.Function;
-import java.util.function.BiFunction;
-import java.util.stream.Collectors;
-
-public class MultiResolutionBufferedImage extends BufferedImage
- implements MultiResolutionImage {
-
- private final BiFunction<Integer, Integer, Image> mapper;
- private final Dimension2D[] sizes;
- private int availableInfo;
-
- public MultiResolutionBufferedImage(Image baseImage,
- BiFunction<Integer, Integer, Image> mapper) {
- this(baseImage, new Dimension[]{new Dimension(
- baseImage.getWidth(null), baseImage.getHeight(null))
- }, mapper);
- }
-
- public MultiResolutionBufferedImage(Image baseImage,
- Dimension2D[] sizes, BiFunction<Integer, Integer, Image> mapper) {
- super(baseImage.getWidth(null), baseImage.getHeight(null),
- BufferedImage.TYPE_INT_ARGB_PRE);
- this.sizes = sizes;
- this.mapper = mapper;
- this.availableInfo = getInfo(baseImage);
- Graphics g = getGraphics();
- g.drawImage(baseImage, 0, 0, null);
- g.dispose();
- }
-
- @Override
- public Image getResolutionVariant(int width, int height) {
- int baseWidth = getWidth();
- int baseHeight = getHeight();
-
- if (baseWidth == width && baseHeight == height) {
- return this;
- }
-
- ImageCache cache = ImageCache.getInstance();
- ImageCacheKey key = new ImageCacheKey(this, width, height);
- Image resolutionVariant = cache.getImage(key);
- if (resolutionVariant == null) {
- resolutionVariant = mapper.apply(width, height);
- cache.setImage(key, resolutionVariant);
- preload(resolutionVariant, availableInfo);
- }
-
- return resolutionVariant;
- }
-
- @Override
- public List<Image> getResolutionVariants() {
- return Arrays.stream(sizes).map((Function<Dimension2D, Image>) size
- -> getResolutionVariant((int) size.getWidth(),
- (int) size.getHeight())).collect(Collectors.toList());
- }
-
- public MultiResolutionBufferedImage map(Function<Image, Image> mapper) {
- return new MultiResolutionBufferedImage(mapper.apply(this), sizes,
- (width, height) ->
- mapper.apply(getResolutionVariant(width, height)));
- }
-
- @Override
- public int getWidth(ImageObserver observer) {
- availableInfo |= ImageObserver.WIDTH;
- return super.getWidth(observer);
- }
-
- @Override
- public int getHeight(ImageObserver observer) {
- availableInfo |= ImageObserver.HEIGHT;
- return super.getHeight(observer);
- }
-
- @Override
- public Object getProperty(String name, ImageObserver observer) {
- availableInfo |= ImageObserver.PROPERTIES;
- return super.getProperty(name, observer);
- }
-
- private static int getInfo(Image image) {
- if (image instanceof ToolkitImage) {
- return ((ToolkitImage) image).getImageRep().check(
- (img, infoflags, x, y, w, h) -> false);
- }
- return 0;
- }
-
- private static void preload(Image image, int availableInfo) {
- if (availableInfo != 0 && image instanceof ToolkitImage) {
- ((ToolkitImage) image).preload(new ImageObserver() {
- int flags = availableInfo;
-
- @Override
- public boolean imageUpdate(Image img, int infoflags,
- int x, int y, int width, int height) {
- flags &= ~infoflags;
- return (flags != 0) && ((infoflags
- & (ImageObserver.ERROR | ImageObserver.ABORT)) == 0);
- }
- });
- }
- }
-
- private static class ImageCacheKey implements ImageCache.PixelsKey {
-
- private final int pixelCount;
- private final int hash;
-
- private final int w;
- private final int h;
- private final Image baseImage;
-
- ImageCacheKey(final Image baseImage,
- final int w, final int h) {
- this.baseImage = baseImage;
- this.w = w;
- this.h = h;
- this.pixelCount = w * h;
- hash = hash();
- }
-
- @Override
- public int getPixelCount() {
- return pixelCount;
- }
-
- private int hash() {
- int hash = baseImage.hashCode();
- hash = 31 * hash + w;
- hash = 31 * hash + h;
- return hash;
- }
-
- @Override
- public int hashCode() {
- return hash;
- }
-
- @Override
- public boolean equals(Object obj) {
- if (obj instanceof ImageCacheKey) {
- ImageCacheKey key = (ImageCacheKey) obj;
- return baseImage == key.baseImage && w == key.w && h == key.h;
- }
- return false;
- }
- }
-}
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