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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.HSSF.Record
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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.Util;
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/**
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* Title: RK Record
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* Description: An internal 32 bit number with the two most significant bits
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* storing the type. This is part of a bizarre scheme to save disk
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* space and memory (gee look at all the other whole records that
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* are in the file just "cause"..,far better to waste Processor
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* cycles on this then leave on of those "valuable" records out).
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* We support this in Read-ONLY mode. HSSF Converts these to NUMBER records
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*
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*
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*
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* REFERENCE: PG 376 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 (jheight at chariot dot net dot au)
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* @version 2.0-pre
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* @see org.apache.poi.hssf.record.NumberRecord
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*/
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public class RKRecord : CellRecord
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{
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public const short sid = 0x27e;
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public static short RK_IEEE_NUMBER = 0;
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public static short RK_IEEE_NUMBER_TIMES_100 = 1;
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public static short RK_INTEGER = 2;
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public static short RK_INTEGER_TIMES_100 = 3;
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private int field_4_rk_number;
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public RKRecord()
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{
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}
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/**
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* Constructs a RK record 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 RKRecord(RecordInputStream in1)
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: base(in1)
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{
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field_4_rk_number = in1.ReadInt();
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}
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public int RKField
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{
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get { return field_4_rk_number; }
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}
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/**
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* Get the type of the number
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*
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* @return one of these values:
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* <OL START="0">
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* <LI>RK_IEEE_NUMBER</LI>
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* <LI>RK_IEEE_NUMBER_TIMES_100</LI>
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* <LI>RK_INTEGER</LI>
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* <LI>RK_INTEGER_TIMES_100</LI>
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* </OL>
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*/
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public short RKType
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{
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get { return (short)(field_4_rk_number & 3); }
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}
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/**
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* Extract the value of the number
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*
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* The mechanism for determining the value is dependent on the two
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* low order bits of the raw number. If bit 1 is Set, the number
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* is an integer and can be cast directly as a double, otherwise,
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* it's apparently the exponent and mantissa of a double (and the
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* remaining low-order bits of the double's mantissa are 0's).
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*
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* If bit 0 is Set, the result of the conversion to a double Is
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* divided by 100; otherwise, the value is left alone.
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*
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* [Insert picture of Screwy Squirrel in full Napoleonic regalia]
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*
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* @return the value as a proper double (hey, it <B>could</B>
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* happen)
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*/
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public double RKNumber
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{
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get { return RKUtil.DecodeNumber(field_4_rk_number); }
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}
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protected override String RecordName
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{
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get
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{
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return "RK";
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}
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}
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protected override void AppendValueText(StringBuilder sb)
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{
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sb.Append(" .value= ").Append(RKNumber);
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}
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protected override void SerializeValue(ILittleEndianOutput out1)
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{
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out1.WriteInt(field_4_rk_number);
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}
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protected override int ValueDataSize
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{
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get
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{
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return 4;
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}
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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 new object Clone()
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{
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RKRecord rec = new RKRecord();
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CopyBaseFields(rec);
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rec.field_4_rk_number = field_4_rk_number;
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return rec;
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}
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}
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}
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