/*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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namespace HH.WMS.Utils.NPOI.DDF
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{
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using System;
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using System.IO;
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using System.Collections;
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using HH.WMS.Utils.NPOI.Util;
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/// <summary>
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/// @author Glen Stampoultzis
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/// @version $Id: EscherBitmapBlip.java 569827 2007-08-26 15:26:29Z yegor $
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/// </summary>
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public class EscherBitmapBlip : EscherBlipRecord
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{
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public const short RECORD_ID_JPEG = unchecked((short)0xF018) + 5;
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public const short RECORD_ID_PNG = unchecked((short)0xF018) + 6;
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public const short RECORD_ID_DIB = unchecked((short)0xF018) + 7;
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private const int HEADER_SIZE = 8;
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private byte[] field_1_UID;
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private byte field_2_marker = (byte)0xFF;
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/// <summary>
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/// This method deSerializes the record from a byte array.
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/// </summary>
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/// <param name="data"> The byte array containing the escher record information</param>
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/// <param name="offset">The starting offset into </param>
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/// <param name="recordFactory">May be null since this is not a container record.</param>
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/// <returns>The number of bytes Read from the byte array.</returns>
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public override 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_1_UID = new byte[16];
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Array.Copy(data, pos, field_1_UID, 0, 16); pos += 16;
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field_2_marker = data[pos]; pos++;
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field_pictureData = new byte[bytesAfterHeader - 17];
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Array.Copy(data, pos, field_pictureData, 0, field_pictureData.Length);
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return bytesAfterHeader + HEADER_SIZE;
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}
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/// <summary>
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/// Serializes the record to an existing byte array.
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/// </summary>
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/// <param name="offset">the offset within the byte array</param>
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/// <param name="data">the data array to Serialize to</param>
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/// <param name="listener">a listener for begin and end serialization events.</param>
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/// <returns>the number of bytes written.</returns>
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public override int Serialize(int offset, byte[] data, EscherSerializationListener listener)
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{
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listener.BeforeRecordSerialize(offset, RecordId, this);
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LittleEndian.PutShort(data, offset, Options);
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LittleEndian.PutShort(data, offset + 2, RecordId);
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LittleEndian.PutInt(data, offset + 4, RecordSize - HEADER_SIZE);
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int pos = offset + HEADER_SIZE;
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Array.Copy(field_1_UID, 0, data, pos, 16);
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data[pos + 16] = field_2_marker;
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Array.Copy(field_pictureData, 0, data, pos + 17, field_pictureData.Length);
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listener.AfterRecordSerialize(offset + RecordSize, RecordId, RecordSize, this);
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return HEADER_SIZE + 16 + 1 + field_pictureData.Length;
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}
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/// <summary>
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/// Returns the number of bytes that are required to Serialize this record.
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/// </summary>
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/// <value> Number of bytes</value>
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public override int RecordSize
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{
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get { return 8 + 16 + 1 + field_pictureData.Length; }
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}
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/// <summary>
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/// Gets or sets the UID.
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/// </summary>
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/// <value>The UID.</value>
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public byte[] UID
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{
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get { return field_1_UID; }
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set { this.field_1_UID = value; }
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}
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/// <summary>
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/// Gets or sets the marker.
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/// </summary>
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/// <value>The marker.</value>
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public byte Marker
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{
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get { return field_2_marker; }
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set { this.field_2_marker = value; }
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}
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/// <summary>
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/// Toes the string.
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/// </summary>
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/// <returns></returns>
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public override String ToString()
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{
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String nl = Environment.NewLine;
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String extraData;
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using (MemoryStream b = new MemoryStream())
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{
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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 this.GetType().Name + ":" + nl +
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" RecordId: 0x" + HexDump.ToHex(RecordId) + nl +
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" Options: 0x" + HexDump.ToHex(Options) + nl +
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" UID: 0x" + HexDump.ToHex(field_1_UID) + nl +
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" Marker: 0x" + HexDump.ToHex(field_2_marker) + nl +
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" Extra Data:" + nl + extraData;
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}
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}
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}
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}
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