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File org.jfree.chart.encoders.ImageEncoder.java

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/* ===========================================================
 * JFreeChart : a free chart library for the Java(tm) platform
 * ===========================================================
 *
 * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 *
 * This library is free software; you can redistribute it and/or modify it 
 * under the terms of the GNU Lesser General Public License as published by 
 * the Free Software Foundation; either version 2.1 of the License, or 
 * (at your option) any later version.
 *
 * This library 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 Lesser General Public 
 * License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, 
 * USA.  
 *
 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
 * in the United States and other countries.]
 *
 * -------------------
 * ImageEncoder.java
 * -------------------
 * (C) Copyright 2004, by Richard Atkinson and Contributors.
 *
 * Original Author:  Richard Atkinson;
 * Contributor(s):   -;
 *
 * $Id: ImageEncoder.java,v 1.3.2.1 2005/10/25 20:41:46 mungady Exp $
 *
 * Changes
 * -------
 * 01-Aug-2004 : Initial version (RA);
 *
 */


package org.jfree.chart.encoders;

import java.io.OutputStream;
import java.io.IOException;
import java.awt.image.BufferedImage;

/**
 * Interface for abstracting different types of image encoders.
 *
 * @author Richard Atkinson
 */

public interface ImageEncoder {

    /**
     * Encodes an image in a particular format.
     *
     * @param bufferedImage  The image to be encoded.
     * 
     * @return The byte[] that is the encoded image.
     * 
     * @throws IOException
     */

    public byte[] encode(BufferedImage bufferedImage) throws IOException;


    /**
     * Encodes an image in a particular format and writes it to an OutputStream.
     *
     * @param bufferedImage  The image to be encoded.
     * @param outputStream  The OutputStream to write the encoded image to.
     * @throws IOException
     */

    public void encode(BufferedImage bufferedImage, OutputStream outputStream) 
        throws IOException;

    /**
     * Get the quality of the image encoding.
     *
     * @return A float representing the quality.
     */

    public float getQuality();

    /**
     * Set the quality of the image encoding (not supported by all 
     * ImageEncoders).
     *
     * @param quality  A float representing the quality.
     */

    public void setQuality(float quality);

    /**
     * Get whether the encoder should encode alpha transparency.
     *
     * @return Whether the encoder is encoding alpha transparency.
     */

    public boolean isEncodingAlpha();

    /**
     * Set whether the encoder should encode alpha transparency (not 
     * supported by all ImageEncoders).
     *
     * @param encodingAlpha  Whether the encoder should encode alpha 
     *                       transparency.
     */

    public void setEncodingAlpha(boolean encodingAlpha);

}

File Information:

file name:ImageEncoder.java
package:org.jfree.chart.encoders
qualified name:org.jfree.chart.encoders.ImageEncoder.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/jfree/chart/encoders/ImageEncoder.java
size:3.376 KB (3458 B)
uploaded: 2015-07-22 04:11:02 GMT+0000
last update: 2006-08-25 12:16:44 GMT+0000
last access: 2017-11-23 07:27:06 GMT+0000

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