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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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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.Text;
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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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/// This record simply holds the number of shapes in the drawing group and the
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/// last shape id used for this drawing group.
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/// @author Glen Stampoultzis
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/// </summary>
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public class EscherDgRecord : EscherRecord
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{
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public const short RECORD_ID = unchecked((short)0xF008);
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public const String RECORD_DESCRIPTION = "MsofbtDg";
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private int field_1_numShapes;
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private int field_2_lastMSOSPID;
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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 data</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 bytesRemaining = ReadHeader(data, offset);
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int pos = offset + 8;
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int size = 0;
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field_1_numShapes = LittleEndian.GetInt(data, pos + size); size += 4;
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field_2_lastMSOSPID = LittleEndian.GetInt(data, pos + size); size += 4;
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// bytesRemaining -= size;
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// remainingData = new byte[bytesRemaining];
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// Array.Copy( data, pos + size, remainingData, 0, bytesRemaining );
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return RecordSize;
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}
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/// <summary>
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/// This method Serializes this escher record into a byte array.
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/// </summary>
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/// <param name="offset"> The offset into data to start writing the record data to.</param>
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/// <param name="data"> The byte array to Serialize to.</param>
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/// <returns>The number of bytes written.</returns>
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/// <param name="listener">a listener for begin and end serialization events.</param>
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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, 8);
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LittleEndian.PutInt(data, offset + 8, field_1_numShapes);
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LittleEndian.PutInt(data, offset + 12, field_2_lastMSOSPID);
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// Array.Copy( remainingData, 0, data, offset + 26, remainingData.Length );
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// int pos = offset + 8 + 18 + remainingData.Length;
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listener.AfterRecordSerialize(offset + 16, RecordId, RecordSize, this);
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return RecordSize;
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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 + 8; }
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}
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/// <summary>
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/// Return the current record id.
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/// </summary>
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/// <value>The 16 bit record id.</value>
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public override short RecordId
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{
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get { return RECORD_ID; }
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}
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/// <summary>
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/// The short name for this record
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/// </summary>
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/// <value></value>
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public override String RecordName
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{
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get { return "Dg"; }
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}
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/// <summary>
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/// Returns a <see cref="T:System.String"/> that represents the current <see cref="T:System.Object"/>.
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/// </summary>
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/// <returns>
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/// A <see cref="T:System.String"/> that represents the current <see cref="T:System.Object"/>.
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/// </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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// MemoryStream b = new MemoryStream();
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// try
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// {
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// HexDump.dump(this.remainingData, 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 = "error";
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// }
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return GetType().Name + ":" + nl +
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" RecordId: 0x" + HexDump.ToHex(RECORD_ID) + nl +
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" Options: 0x" + HexDump.ToHex(Options) + nl +
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" NumShapes: " + field_1_numShapes + nl +
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" LastMSOSPID: " + field_2_lastMSOSPID + nl;
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}
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/// <summary>
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/// Gets or sets The number of shapes in this drawing group.
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/// </summary>
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/// <value>The num shapes.</value>
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public int NumShapes
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{
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get { return field_1_numShapes; }
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set { field_1_numShapes = value; }
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}
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/// <summary>
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/// Gets or sets The last shape id used in this drawing group.
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/// </summary>
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/// <value>The last MSOSPID.</value>
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public int LastMSOSPID
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{
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get { return field_2_lastMSOSPID; }
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set { field_2_lastMSOSPID = value; }
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}
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/// <summary>
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/// Gets the drawing group id for this record. This is encoded in the
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/// instance part of the option record.
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/// </summary>
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/// <value>The drawing group id.</value>
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public short DrawingGroupId
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{
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get { return (short)(Options >> 4); }
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}
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/// <summary>
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/// Increments the shape count.
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/// </summary>
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public void IncrementShapeCount()
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{
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this.field_1_numShapes++;
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}
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}
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}
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