AOO410/main/xmerge/source/pexcel/java/org/openoffice/xmerge/converter/xml/sxc/pexcel/records/CodePage.java

/**************************************************************
 * 
 * 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.openoffice.xmerge.converter.xml.sxc.pexcel.records;

import java.io.OutputStream;
import java.io.InputStream;
import java.io.IOException;

import org.openoffice.xmerge.util.Debug;
import org.openoffice.xmerge.util.EndianConverter;
import org.openoffice.xmerge.converter.xml.sxc.pexcel.PocketExcelConstants;

/**
 * Represents the codepage for the document. There is a number of unknown
 * fields which are hardcoded at construction
 */
public class CodePage implements BIFFRecord {

    private byte[] codepage = new byte[2];
    private byte[] unknown1 = new byte[2];
    private byte[] unknown2 = new byte[2];
    private byte unknown3;
    
    /**
     * Constructs a pocket Excel Codepage 
     */
    public CodePage() {
		codepage	= new byte[] {(byte)0xE4, (byte)0x04};
		unknown1	= new byte[] {(byte)0x8C, (byte)0x01};
		unknown2	= new byte[] {(byte)0x00, (byte)0x01};
		unknown3	= 0x00;
    }

    /**
     * Constructs a pocket Excel Codepage from the<code>InputStream</code> 
     *
     * @param	is InputStream containing a Pocket Excel Data file.
     */
    public CodePage(InputStream is) throws IOException {
		read(is);	
    }

     /**
	 * Get the hex code for this particular <code>BIFFRecord</code> 
	 *
	 * @return the hex code for <code>BoundSheet</code>
	 */
    public short getBiffType() {
        return PocketExcelConstants.CODEPAGE;
    }
    
    public int read(InputStream input) throws IOException {

        int numOfBytesRead	= input.read(codepage);    
        numOfBytesRead     	+= input.read(unknown1);
        numOfBytesRead     	+= input.read(unknown2);
        // numOfBytesRead     	+= input.read(unknown3);
        unknown3			= (byte) input.read();
        numOfBytesRead++;
        
        Debug.log(Debug.TRACE,"\tcodepage : "+ EndianConverter.readShort(codepage) + 
                            " unknown1 : " + EndianConverter.readShort(unknown1) +        
                            " unknown2 : " + EndianConverter.readShort(unknown2) +          
                            " unknown3 : " + unknown3);          

        return numOfBytesRead;
    }
    
    public void write(OutputStream output) throws IOException {

		output.write(getBiffType());
		output.write(codepage);
		output.write(unknown1);
		output.write(unknown2);
		output.write(unknown3);

		Debug.log(Debug.TRACE,"Writing CodePage record");

	
    }
    
}