/* ====================================================================
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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.HSSF.Record
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{
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using HH.WMS.Utils.NPOI.Util;
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using System;
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using System.Text;
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using System.IO;
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using System.Collections;
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/**
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* Title: DBCell Record
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* Description: Used by Excel and other MS apps to quickly Find rows in the sheets.
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* REFERENCE: PG 299/440 Microsoft Excel 97 Developer's Kit (ISBN: 1-57231-498-2)
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* @author Andrew C. Oliver (acoliver at apache dot org)
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* @author Jason Height
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* @version 2.0-pre
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*/
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public class DBCellRecord : StandardRecord
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{
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public static int BLOCK_SIZE = 32;
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public const short sid = 0xd7;
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public DBCellRecord()
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{
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field_2_cell_offsets = new short[0];
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}
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/**
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* Constructs a DBCellRecord and Sets its fields appropriately
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* @param in the RecordInputstream to Read the record from
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*/
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public DBCellRecord(RecordInputStream in1)
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{
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field_1_row_offset = in1.ReadUShort();
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int size = in1.Remaining;
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field_2_cell_offsets = new short[size / 2];
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for (int i = 0; i < field_2_cell_offsets.Length; i++)
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{
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field_2_cell_offsets[i] = in1.ReadShort();
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}
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}
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private int field_1_row_offset;
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private short[] field_2_cell_offsets;
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/**
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* offset from the start of this DBCellRecord to the start of the first cell in
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* the next DBCell block.
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*/
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public DBCellRecord(int rowOffset, short[]cellOffsets) {
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field_1_row_offset = rowOffset;
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field_2_cell_offsets = cellOffsets;
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}
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// need short list impl.
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public void AddCellOffset(short offset)
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{
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if (field_2_cell_offsets == null)
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{
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field_2_cell_offsets = new short[1];
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}
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else
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{
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short[] temp = new short[field_2_cell_offsets.Length + 1];
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Array.Copy(field_2_cell_offsets, 0, temp, 0,
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field_2_cell_offsets.Length);
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field_2_cell_offsets = temp;
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}
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field_2_cell_offsets[field_2_cell_offsets.Length - 1] = offset;
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}
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/**
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* Gets offset from the start of this DBCellRecord to the start of the first cell in
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* the next DBCell block.
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*
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* @return rowoffset to the start of the first cell in the next DBCell block
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*/
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public int RowOffset
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{
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get { return field_1_row_offset; }
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set { field_1_row_offset = value; }
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}
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/**
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* return the cell offset in the array
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*
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* @param index of the cell offset to retrieve
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* @return celloffset from the celloffset array
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*/
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public short GetCellOffsetAt(int index)
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{
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return field_2_cell_offsets[index];
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}
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/**
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* Get the number of cell offsets in the celloffset array
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*
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* @return number of cell offsets
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*/
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public int NumCellOffsets
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{
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get{return field_2_cell_offsets.Length;}
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}
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public override String ToString()
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{
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StringBuilder buffer = new StringBuilder();
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buffer.Append("[DBCELL]\n");
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buffer.Append(" .rowoffset = ")
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.Append(StringUtil.ToHexString(RowOffset)).Append("\n");
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for (int k = 0; k < field_2_cell_offsets.Length; k++)
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{
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buffer.Append(" .cell_").Append(k).Append(" = ")
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.Append(HexDump.ShortToHex(field_2_cell_offsets[k])).Append("\n");
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}
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buffer.Append("[/DBCELL]\n");
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return buffer.ToString();
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}
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public override void Serialize(ILittleEndianOutput out1)
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{
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out1.WriteInt(field_1_row_offset);
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for (int k = 0; k < field_2_cell_offsets.Length; k++)
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{
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out1.WriteShort(field_2_cell_offsets[k]);
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}
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}
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protected override int DataSize
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{
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get { return 4 + field_2_cell_offsets.Length * 2; }
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}
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/**
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* @returns the size of the Group of <c>DBCellRecord</c>s needed to encode
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* the specified number of blocks and rows
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*/
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public static int CalculateSizeOfRecords(int nBlocks, int nRows)
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{
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// One DBCell per block.
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// 8 bytes per DBCell (non variable section)
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// 2 bytes per row reference
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return nBlocks * 8 + nRows * 2;
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}
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public override short Sid
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{
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get { return sid; }
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}
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public override Object Clone()
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{
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// TODO - make immutable.
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// this should be safe because only the instantiating code mutates these objects
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return this;
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}
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}
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}
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