Package org.jaudiotagger.tag.id3.framebody

Source Code of org.jaudiotagger.tag.id3.framebody.FrameBodyTRCK

/*
*  MusicTag Copyright (C)2003,2004
*
*  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,
*  you can get a copy from http://www.opensource.org/licenses/lgpl-license.php or write to the Free Software
*  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
package org.jaudiotagger.tag.id3.framebody;

import org.jaudiotagger.tag.InvalidTagException;
import org.jaudiotagger.tag.datatype.DataTypes;
import org.jaudiotagger.tag.datatype.NumberHashMap;
import org.jaudiotagger.tag.datatype.PartOfSet;
import org.jaudiotagger.tag.id3.ID3v24Frames;
import org.jaudiotagger.tag.id3.valuepair.TextEncoding;

import java.nio.ByteBuffer;

/**
* Track number/position in set Text Information frame.
* <p/>
* <p>The 'Track number/Position in set' frame is a numeric string containing the order number of the audio-file on its original recording.
* <p/>
* This may be extended with a "/" character and a numeric string containing the total number of tracks/elements on the original recording.
* e.g. "4/9".
* <p/>
* Some applications like to prepend the track number with a zero to aid sorting, (i.e 02 comes before 10)
* <p/>
* <p/>
* <p>For more details, please refer to the ID3 specifications:
* <ul>
* <li><a href="http://www.id3.org/id3v2.3.0.txt">ID3 v2.3.0 Spec</a>
* </ul>
*
* @author : Paul Taylor
* @author : Eric Farng
* @version $Id: FrameBodyTRCK.java 895 2010-04-15 15:21:45Z paultaylor $
*/
public class FrameBodyTRCK extends AbstractID3v2FrameBody implements ID3v23FrameBody, ID3v24FrameBody {

    /**
     * Creates a new FrameBodyTRCK datatype.
     */
    public FrameBodyTRCK() {
        setObjectValue(DataTypes.OBJ_TEXT_ENCODING, TextEncoding.ISO_8859_1);
        setObjectValue(DataTypes.OBJ_TEXT, new PartOfSet.PartOfSetValue());
    }

    public FrameBodyTRCK(FrameBodyTRCK body) {
        super(body);
    }

    /**
     * Creates a new FrameBodyTRCK datatype, the value is parsed literally
     *
     * @param textEncoding
     * @param text
     */
    public FrameBodyTRCK(byte textEncoding, String text) {
        setObjectValue(DataTypes.OBJ_TEXT_ENCODING, textEncoding);
        setObjectValue(DataTypes.OBJ_TEXT, new PartOfSet.PartOfSetValue(text));
    }

    public FrameBodyTRCK(byte textEncoding, Integer trackNo, Integer trackTotal) {
        super();
        setObjectValue(DataTypes.OBJ_TEXT_ENCODING, textEncoding);
        setObjectValue(DataTypes.OBJ_TEXT, new PartOfSet.PartOfSetValue(trackNo, trackTotal));
    }

    public String getUserFriendlyValue() {
        return String.valueOf(getTrackNo());
    }

    /**
     * Creates a new FrameBodyTRCK datatype.
     *
     * @param byteBuffer
     * @param frameSize
     * @throws java.io.IOException
     * @throws InvalidTagException
     */
    public FrameBodyTRCK(ByteBuffer byteBuffer, int frameSize) throws InvalidTagException {
        super(byteBuffer, frameSize);
    }


    /**
     * The ID3v2 frame identifier
     *
     * @return the ID3v2 frame identifier  for this frame type
     */
    public String getIdentifier() {
        return ID3v24Frames.FRAME_ID_TRACK;
    }

    public Integer getTrackNo() {
        PartOfSet.PartOfSetValue value = (PartOfSet.PartOfSetValue) getObjectValue(DataTypes.OBJ_TEXT);
        return value.getCount();
    }

    public String getText() {
        return getObjectValue(DataTypes.OBJ_TEXT).toString();
    }

    public void setTrackNo(Integer trackNo) {
        ((PartOfSet.PartOfSetValue) getObjectValue(DataTypes.OBJ_TEXT)).setCount(trackNo);
    }

    public void setTrackNo(String trackNo) {
        ((PartOfSet.PartOfSetValue) getObjectValue(DataTypes.OBJ_TEXT)).setCount(trackNo);
    }

    public Integer getTrackTotal() {
        return ((PartOfSet.PartOfSetValue) getObjectValue(DataTypes.OBJ_TEXT)).getTotal();
    }

    public void setTrackTotal(Integer trackTotal) {
        ((PartOfSet.PartOfSetValue) getObjectValue(DataTypes.OBJ_TEXT)).setTotal(trackTotal);
    }

    public void setText(String text) {
        setObjectValue(DataTypes.OBJ_TEXT, new PartOfSet.PartOfSetValue(text));
    }

    protected void setupObjectList() {
        objectList.add(new NumberHashMap(DataTypes.OBJ_TEXT_ENCODING, this, TextEncoding.TEXT_ENCODING_FIELD_SIZE));
        objectList.add(new PartOfSet(DataTypes.OBJ_TEXT, this));
    }
}
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