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80 lines
3.0 KiB
Java
80 lines
3.0 KiB
Java
/*
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* Copyright 2004-2008, Thorbjørn Lindeijer <thorbjorn@lindeijer.nl>
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* Copyright 2004-2008, Adam Turk <aturk@biggeruniverse.com>
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*
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* This file is part of libtiled-java.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
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* OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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package tiled.util;
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import java.awt.Image;
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import java.awt.image.BufferedImage;
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import java.io.ByteArrayInputStream;
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import java.io.ByteArrayOutputStream;
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import java.io.IOException;
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import javax.imageio.ImageIO;
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/**
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* This class provides functions to help out with saving/loading images.
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*/
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public class ImageHelper
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{
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/**
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* Converts an image to a PNG stored in a byte array.
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*
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* @param image
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* @return a byte array with the PNG data
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*/
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static public byte[] imageToPNG(Image image) {
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ByteArrayOutputStream baos = new ByteArrayOutputStream();
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try {
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BufferedImage buffer = new BufferedImage(
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image.getWidth(null), image.getHeight(null),
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BufferedImage.TYPE_INT_ARGB);
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buffer.createGraphics().drawImage(image, 0, 0, null);
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ImageIO.write(buffer, "PNG", baos);
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baos.close();
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} catch (IOException e) {
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e.printStackTrace();
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}
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return baos.toByteArray();
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}
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/**
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* Converts a byte array into an image. The byte array must include the
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* image header, so that a decision about format can be made.
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*
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* @param imageData The byte array of the data to convert.
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* @return Image The image instance created from the byte array
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* @throws IOException
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* @see java.awt.Toolkit#createImage(byte[] imagedata)
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*/
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static public BufferedImage bytesToImage(byte[] imageData) throws IOException {
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return ImageIO.read(new ByteArrayInputStream(imageData));
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}
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}
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