001    /**
002     * Copyright (c) 2000-2012 Liferay, Inc. All rights reserved.
003     *
004     * This library is free software; you can redistribute it and/or modify it under
005     * the terms of the GNU Lesser General Public License as published by the Free
006     * Software Foundation; either version 2.1 of the License, or (at your option)
007     * any later version.
008     *
009     * This library is distributed in the hope that it will be useful, but WITHOUT
010     * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
011     * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
012     * details.
013     */
014    
015    package com.liferay.portal.kernel.image;
016    
017    import java.awt.image.BufferedImage;
018    import java.awt.image.RenderedImage;
019    
020    import java.io.File;
021    import java.io.IOException;
022    import java.io.InputStream;
023    import java.io.OutputStream;
024    
025    import java.util.concurrent.Future;
026    
027    /**
028     * @author Brian Wing Shun Chan
029     * @author Alexander Chow
030     */
031    public interface ImageTool {
032    
033            public static final String TYPE_BMP = "bmp";
034    
035            public static final String TYPE_GIF = "gif";
036    
037            public static final String TYPE_JPEG = "jpg";
038    
039            public static final String TYPE_NOT_AVAILABLE = "na";
040    
041            public static final String TYPE_PNG = "png";
042    
043            public static final String TYPE_TIFF = "tiff";
044    
045            public Future<RenderedImage> convertCMYKtoRGB(byte[] bytes, String type);
046    
047            public BufferedImage convertImageType(BufferedImage sourceImage, int type);
048    
049            public void encodeGIF(RenderedImage renderedImage, OutputStream os)
050                    throws IOException;
051    
052            public void encodeWBMP(RenderedImage renderedImage, OutputStream os)
053                    throws IOException;
054    
055            public BufferedImage getBufferedImage(RenderedImage renderedImage);
056    
057            public byte[] getBytes(RenderedImage renderedImage, String contentType)
058                    throws IOException;
059    
060            public ImageBag read(byte[] bytes) throws IOException;
061    
062            public ImageBag read(File file) throws IOException;
063    
064            public ImageBag read(InputStream inputStream) throws IOException;
065    
066            public RenderedImage scale(RenderedImage renderedImage, int width);
067    
068            public RenderedImage scale(
069                    RenderedImage renderedImage, int maxHeight, int maxWidth);
070    
071            public abstract void write(
072                            RenderedImage renderedImage, String contentType, OutputStream os)
073                    throws IOException;
074    
075    }