/* ====================================================================
   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.hssf.record;

import org.apache.poi.util.LittleEndian;

public class DrawingRecord extends Record
{
    public static final short sid = 0xEC;

    private byte[] recordData;

    public DrawingRecord()
    {
    }

    public DrawingRecord( RecordInputStream in )
    {
        super( in );
    }

    /**
     * Checks the sid matches the expected side for this record
     *
     * @param id   the expected sid.
     */
    protected void validateSid(short id)
    {
        if (id != sid)
        {
            throw new RecordFormatException("Not a MSODRAWING record");
        }
    }

    protected void fillFields( RecordInputStream in )
    {
      recordData = in.readRemainder();
    }

    public void processContinueRecord( byte[] record )
    {
        byte[] newBuffer = new byte[ recordData.length + record.length ];
        System.arraycopy( recordData, 0, newBuffer, 0, recordData.length );
        System.arraycopy( record, 0, newBuffer, recordData.length, record.length);
        recordData = newBuffer;
    }

    public int serialize( int offset, byte[] data )
    {
        if (recordData == null)
        {
            recordData = new byte[ 0 ];
        }
        LittleEndian.putShort(data, 0 + offset, sid);
        LittleEndian.putShort(data, 2 + offset, ( short ) (recordData.length));
        if (recordData.length > 0)
        {
            System.arraycopy(recordData, 0, data, 4 + offset, recordData.length);
        }
        return getRecordSize();
    }

    public int getRecordSize()
    {
        int retval = 4;

        if (recordData != null)
        {
            retval += recordData.length;
        }
        return retval;
    }

    public short getSid()
    {
        return sid;
    }

    public byte[] getData()
    {
        return recordData;
    }

    public void setData( byte[] thedata )
    {
        this.recordData = thedata;
    }

}