128 lines
4.3 KiB
Java
128 lines
4.3 KiB
Java
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/* ====================================================================
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Licensed to the Apache Software Foundation (ASF) under one or more
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contributor license agreements. See the NOTICE file distributed with
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this work for additional information regarding copyright ownership.
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The ASF licenses this file to You under the Apache License, Version 2.0
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(the "License"); you may not use this file except in compliance with
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the License. You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==================================================================== */
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package org.apache.poi.ddf;
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import org.apache.poi.util.LittleEndian;
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import org.apache.poi.util.HexDump;
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import java.io.ByteArrayOutputStream;
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/**
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* @author Glen Stampoultzis
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* @version $Id$
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*/
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public class EscherBlipRecord
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extends EscherRecord
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{
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public static final short RECORD_ID_START = (short) 0xF018;
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public static final short RECORD_ID_END = (short) 0xF117;
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public static final String RECORD_DESCRIPTION = "msofbtBlip";
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private static final int HEADER_SIZE = 8;
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protected byte[] field_pictureData;
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public EscherBlipRecord()
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{
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}
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/**
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* This method deserializes the record from a byte array.
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*
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* @param data The byte array containing the escher record information
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* @param offset The starting offset into <code>data</code>.
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* @param recordFactory May be null since this is not a container record.
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* @return The number of bytes read from the byte array.
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*/
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public int fillFields( byte[] data, int offset, EscherRecordFactory recordFactory )
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{
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int bytesAfterHeader = readHeader( data, offset );
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int pos = offset + HEADER_SIZE;
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field_pictureData = new byte[bytesAfterHeader];
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System.arraycopy(data, pos, field_pictureData, 0, bytesAfterHeader);
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return bytesAfterHeader + 8;
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}
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/**
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* Serializes the record to an existing byte array.
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*
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* @param offset the offset within the byte array
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* @param data the data array to serialize to
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* @param listener a listener for begin and end serialization events. This
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* is useful because the serialization is
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* hierarchical/recursive and sometimes you need to be able
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* break into that.
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* @return the number of bytes written.
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*/
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public int serialize( int offset, byte[] data, EscherSerializationListener listener )
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{
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listener.beforeRecordSerialize(offset, getRecordId(), this);
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LittleEndian.putShort( data, offset, getOptions() );
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LittleEndian.putShort( data, offset + 2, getRecordId() );
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System.arraycopy( field_pictureData, 0, data, offset + 4, field_pictureData.length );
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listener.afterRecordSerialize(offset + 4 + field_pictureData.length, getRecordId(), field_pictureData.length + 4, this);
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return field_pictureData.length + 4;
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}
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/**
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* Returns the number of bytes that are required to serialize this record.
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*
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* @return Number of bytes
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*/
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public int getRecordSize()
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{
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return field_pictureData.length + 4;
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}
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/**
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* The short name for this record
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*/
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public String getRecordName()
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{
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return "Blip";
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}
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public String toString()
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{
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String nl = System.getProperty( "line.separator" );
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String extraData;
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ByteArrayOutputStream b = new ByteArrayOutputStream();
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try
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{
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HexDump.dump( this.field_pictureData, 0, b, 0 );
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extraData = b.toString();
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}
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catch ( Exception e )
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{
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extraData = e.toString();
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}
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return getClass().getName() + ":" + nl +
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" RecordId: 0x" + HexDump.toHex( getRecordId() ) + nl +
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" Options: 0x" + HexDump.toHex( getOptions() ) + nl +
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" Extra Data:" + nl + extraData;
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}
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}
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