/*
* 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.
*
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package sun.awt.image;
import java.awt.Image;
import java.awt.Graphics;
import java.awt.image.BufferedImage;
import java.util.Arrays;
import java.util.List;
public class MultiResolutionBufferedImage extends BufferedImage
implements MultiResolutionImage {
Image[] resolutionVariants;
int baseIndex;
public MultiResolutionBufferedImage(int imageType, int baseIndex, Image... images) {
super(images[baseIndex].getWidth(null), images[baseIndex].getHeight(null),
imageType);
this.baseIndex = baseIndex;
this.resolutionVariants = images;
Graphics g = getGraphics();
g.drawImage(images[baseIndex], 0, 0, null);
g.dispose();
images[baseIndex] = this;
}
@Override
public Image getResolutionVariant(int width, int height) {
for (Image image : resolutionVariants) {
if (width <= image.getWidth(null) && height <= image.getHeight(null)) {
return image;
}
}
return this;
}
@Override
public List<Image> getResolutionVariants() {
return Arrays.asList(resolutionVariants);
}
public MultiResolutionBufferedImage map(ImageMapper mapper) {
Image[] images = new Image[resolutionVariants.length];
for (int index = 0; index < resolutionVariants.length; ++index) {
images[index] = mapper.mapImage(resolutionVariants[index]);
}
return new MultiResolutionBufferedImage(getType(), baseIndex, images);
}
public static interface ImageMapper {
public Image mapImage(Image img);
}
}