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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.Collections;
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using HH.WMS.Utils.NPOI.Util;
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/// <summary>
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/// A complex property differs from a simple property in that the data can not fit inside a 32 bit
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/// integer. See the specification for more detailed information regarding exactly what is
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/// stored here.
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/// @author Glen Stampoultzis
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/// </summary>
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public class EscherComplexProperty : EscherProperty
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{
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protected byte[] complexData = new byte[0];
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/// <summary>
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/// Create a complex property using the property id and a byte array containing the complex
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/// data value.
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/// </summary>
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/// <param name="id"> The id consists of the property number, a flag indicating whether this is a blip id and a flag
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/// indicating that this is a complex property.</param>
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/// <param name="complexData">The value of this property.</param>
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public EscherComplexProperty(short id, byte[] complexData):base(id)
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{
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this.complexData = complexData;
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}
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/// <summary>
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/// Create a complex property using the property number, a flag to indicate whether this is a
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/// blip reference and the complex property data.
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/// </summary>
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/// <param name="propertyNumber">The property number.</param>
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/// <param name="isBlipId">Whether this is a blip id. Should be false.</param>
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/// <param name="complexData">The value of this complex property.</param>
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public EscherComplexProperty(short propertyNumber, bool isBlipId, byte[] complexData):base(propertyNumber, true, isBlipId)
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{
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this.complexData = complexData;
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}
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/// <summary>
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/// Serializes the simple part of this property. ie the first 6 bytes.
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/// </summary>
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/// <param name="data"></param>
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/// <param name="pos"></param>
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/// <returns></returns>
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public override int SerializeSimplePart(byte[] data, int pos)
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{
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LittleEndian.PutShort(data, pos, Id);
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LittleEndian.PutInt(data, pos + 2, complexData.Length);
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return 6;
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}
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/// <summary>
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/// Serializes the complex part of this property
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/// </summary>
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/// <param name="data">The data array to Serialize to</param>
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/// <param name="pos">The offset within data to start serializing to.</param>
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/// <returns>The number of bytes Serialized.</returns>
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public override int SerializeComplexPart(byte[] data, int pos)
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{
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Array.Copy(complexData, 0, data, pos, complexData.Length);
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return complexData.Length;
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}
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/// <summary>
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/// Gets the complex data.
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/// </summary>
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/// <value>The complex data.</value>
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public byte[] ComplexData
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{
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get { return complexData; }
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}
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/// <summary>
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/// Determine whether this property is equal to another property.
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/// </summary>
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/// <param name="o">The object to compare to.</param>
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/// <returns>True if the objects are equal.</returns>
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public override bool Equals(Object o)
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{
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if (this == o) return true;
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if (!(o is EscherComplexProperty)) return false;
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EscherComplexProperty escherComplexProperty = (EscherComplexProperty)o;
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if (!Arrays.Equals(complexData, escherComplexProperty.complexData)) return false;
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return true;
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}
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/// <summary>
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/// Caclulates the number of bytes required to Serialize this property.
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/// </summary>
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/// <value>Number of bytes</value>
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public override int PropertySize
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{
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get { return 6 + complexData.Length; }
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}
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/// <summary>
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/// Serves as a hash function for a particular type.
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/// </summary>
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/// <returns>
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/// A hash code for the current <see cref="T:System.Object"/>.
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/// </returns>
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public override int GetHashCode()
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{
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return Id * 11;
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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 dataStr;
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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.complexData, 0, b, 0);
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dataStr = b.ToString();
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}
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catch (Exception e)
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{
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dataStr = e.ToString();
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}
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}
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return "propNum: " + PropertyNumber
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+ ", propName: " + EscherProperties.GetPropertyName(PropertyNumber)
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+ ", complex: " + IsComplex
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+ ", blipId: " + IsBlipId
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+ ", data: " + Environment.NewLine + dataStr;
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}
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}
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}
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