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/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/* $Id: ImageEncoderImpl.java 1732018 2016-02-24 04:51:06Z gadams $ */

package org.apache.xmlgraphics.image.codec.util;

import java.awt.image.ColorModel;
import java.awt.image.Raster;
import java.awt.image.RenderedImage;
import java.io.IOException;
import java.io.OutputStream;

/**
 * A partial implementation of the ImageEncoder interface useful for
 * subclassing.
 *
 * 

This class is not a committed part of the JAI API. It may * be removed or changed in future releases of JAI. */ public abstract class ImageEncoderImpl implements ImageEncoder { /** The OutputStream associcted with this ImageEncoder. */ protected OutputStream output; /** The ImageEncodeParam object associcted with this ImageEncoder. */ protected ImageEncodeParam param; /** * Constructs an ImageEncoderImpl with a given OutputStream * and ImageEncoderParam instance. */ public ImageEncoderImpl(OutputStream output, ImageEncodeParam param) { this.output = output; this.param = param; } /** * Returns the current parameters as an instance of the * ImageEncodeParam interface. Concrete implementations of this * interface will return corresponding concrete implementations of * the ImageEncodeParam interface. For example, a JPEGImageEncoder * will return an instance of JPEGEncodeParam. */ public ImageEncodeParam getParam() { return param; } /** * Sets the current parameters to an instance of the * ImageEncodeParam interface. Concrete implementations * of ImageEncoder may throw a RuntimeException if the * params argument is not an instance of the appropriate * subclass or subinterface. For example, a JPEGImageEncoder * will expect param to be an instance of JPEGEncodeParam. */ public void setParam(ImageEncodeParam param) { this.param = param; } /** Returns the OutputStream associated with this ImageEncoder. */ public OutputStream getOutputStream() { return output; } /** * Encodes a Raster with a given ColorModel and writes the output * to the OutputStream associated with this ImageEncoder. */ public void encode(Raster ras, ColorModel cm) throws IOException { RenderedImage im = new SingleTileRenderedImage(ras, cm); encode(im); } /** * Encodes a RenderedImage and writes the output to the * OutputStream associated with this ImageEncoder. */ public abstract void encode(RenderedImage im) throws IOException; }





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