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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.Text;
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using System.Collections;
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using HH.WMS.Utils.NPOI.Util;
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using HH.WMS.Utils.NPOI.HSSF.Record;
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/// <summary>
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/// Holds data from the parent application. Most commonly used to store
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/// text in the format of the parent application, rather than in
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/// Escher format. We don't attempt to understand the contents, since
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/// they will be in the parent's format, not Escher format.
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/// @author Glen Stampoultzis (glens at apache.org)
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/// @author Nick Burch (nick at torchbox dot com)
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/// </summary>
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public class EscherTextboxRecord : EscherRecord
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{
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public static short RECORD_ID = unchecked((short)0xF00D);
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public static String RECORD_DESCRIPTION = "msofbtClientTextbox";
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private static byte[] NO_BYTES = new byte[0];
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/** The data for this record not including the the 8 byte header */
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private byte[] thedata = NO_BYTES;
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public EscherTextboxRecord()
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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 <c>data</c>.
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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 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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// Save the data, Ready for the calling code to do something
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// useful with it
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thedata = new byte[bytesRemaining];
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Array.Copy(data, offset + 8, thedata, 0, bytesRemaining);
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return bytesRemaining + 8;
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}
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/// <summary>
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/// Writes this record and any contained records to the supplied byte
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/// </summary>
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/// <param name="offset"></param>
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/// <param name="data"></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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int remainingBytes = thedata.Length;
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LittleEndian.PutInt(data, offset + 4, remainingBytes);
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Array.Copy(thedata, 0, data, offset + 8, thedata.Length);
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int pos = offset + 8 + thedata.Length;
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listener.AfterRecordSerialize(pos, RecordId, pos - offset, this);
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int size = pos - offset;
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if (size != RecordSize)
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throw new RecordFormatException(size + " bytes written but RecordSize reports " + RecordSize);
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return size;
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}
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/// <summary>
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/// Returns any extra data associated with this record. In practice excel
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/// does not seem to put anything here, but with PowerPoint this will
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/// contain the bytes that make up a TextHeaderAtom followed by a
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/// TextBytesAtom/TextCharsAtom
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/// </summary>
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/// <value>The data.</value>
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public byte[] Data
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{
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get { return thedata; }
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}
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/// <summary>
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/// Sets the extra data (in the parent application's format) to be
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/// contained by the record. Used when the parent application changes
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/// the contents.
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/// </summary>
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/// <param name="b">The b.</param>
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/// <param name="start">The start.</param>
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/// <param name="Length">The length.</param>
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public void SetData(byte[] b, int start, int Length)
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{
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thedata = new byte[Length];
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Array.Copy(b, start, thedata, 0, Length);
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}
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/// <summary>
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/// Sets the data.
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/// </summary>
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/// <param name="b">The b.</param>
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public void SetData(byte[] b)
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{
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SetData(b, 0, b.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 + thedata.Length; }
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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 "ClientTextbox"; }
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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 theDumpHex = "";
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try
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{
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if (thedata.Length != 0)
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{
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theDumpHex = " Extra Data:" + nl;
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theDumpHex += HexDump.Dump(thedata, 0, 0);
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}
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}
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catch (Exception)
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{
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theDumpHex = "Error!!";
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}
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return GetType().Name + ":" + nl +
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" isContainer: " + IsContainerRecord + nl +
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" options: 0x" + HexDump.ToHex(Options) + nl +
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" recordId: 0x" + HexDump.ToHex(RecordId) + nl +
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" numchildren: " + ChildRecords.Count + nl +
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theDumpHex;
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}
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}
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}
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