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The Apache Commons Codec package contains simple encoder and decoders for various formats such as Base64 and Hexadecimal. In addition to these widely used encoders and decoders, the codec package also maintains a collection of phonetic encoding utilities.

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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.
 * ====================================================================
 */

package org.apache.poi.xslf.util;

import java.awt.Graphics2D;
import java.awt.geom.Dimension2D;
import java.io.Closeable;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.nio.charset.Charset;
import java.util.Collections;
import java.util.Set;

import org.apache.poi.common.usermodel.GenericRecord;
import org.apache.poi.sl.draw.EmbeddedExtractor.EmbeddedPart;
import org.apache.poi.util.Internal;

@Internal
abstract class MFProxy implements Closeable {
    boolean ignoreParse;
    boolean quiet;

    void setIgnoreParse(boolean ignoreParse) {
        this.ignoreParse = ignoreParse;
    }

    void setQuiet(boolean quiet) {
        this.quiet = quiet;
    }

    abstract void parse(File file) throws IOException;
    abstract void parse(InputStream is) throws IOException;

    abstract Dimension2D getSize();

    void setSlideNo(int slideNo) {}

    abstract String getTitle();
    abstract void draw(Graphics2D ctx);

    int getSlideCount() { return 1; }

    Set slideIndexes(String range) {
        return Collections.singleton(1);
    }

    abstract GenericRecord getRoot();

    abstract Iterable getEmbeddings(int slideNo);

    abstract void setDefaultCharset(Charset charset);
}