/* ====================================================================
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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.SS.UserModel
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{
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using System;
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using System.Text;
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using HH.WMS.Utils.NPOI.SS.Formula.Eval;
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using HH.WMS.Utils.NPOI.SS.UserModel;
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using System.Globalization;
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/**
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* Mimics the 'data view' of a cell. This allows formula Evaluator
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* to return a CellValue instead of precasting the value to String
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* or Number or bool type.
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* @author Amol S. Deshmukh < amolweb at ya hoo dot com >
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*/
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public class CellValue
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{
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public static CellValue TRUE = new CellValue(CellType.BOOLEAN, 0.0, true, null, 0);
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public static CellValue FALSE = new CellValue(CellType.BOOLEAN, 0.0, false, null, 0);
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private CellType _cellType;
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private double _numberValue;
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private bool _boolValue;
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private String _textValue;
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private int _errorCode;
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private CellValue(CellType cellType, double numberValue, bool boolValue,
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String textValue, int errorCode)
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{
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_cellType = cellType;
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_numberValue = numberValue;
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_boolValue = boolValue;
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_textValue = textValue;
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_errorCode = errorCode;
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}
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public CellValue(double numberValue)
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: this(CellType.NUMERIC, numberValue, false, null, 0)
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{
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}
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public static CellValue ValueOf(bool boolValue)
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{
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return boolValue ? TRUE : FALSE;
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}
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public CellValue(String stringValue)
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: this(CellType.STRING, 0.0, false, stringValue, 0)
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{
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}
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public static CellValue GetError(int errorCode)
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{
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return new CellValue(CellType.ERROR, 0.0, false, null, errorCode);
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}
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/**
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* @return Returns the boolValue.
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*/
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public bool BooleanValue
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{
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get
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{
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return _boolValue;
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}
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}
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/**
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* @return Returns the numberValue.
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*/
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public double NumberValue
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{
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get
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{
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return _numberValue;
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}
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}
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/**
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* @return Returns the stringValue.
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*/
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public String StringValue
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{
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get
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{
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return _textValue;
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}
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}
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/**
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* @return Returns the cellType.
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*/
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public CellType CellType
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{
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get
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{
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return _cellType;
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}
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}
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/**
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* @return Returns the errorValue.
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*/
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//the return value should be sbyte? the byte in java is signed(-128~127) and is unsiged(0~255) in c#.
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//if use byte, the test HH.WMS.Utils.NPOI.SS.Formula.TestWorkbookEvaluator.TestResultOutsideRange failed.
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public sbyte ErrorValue
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{
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get
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{
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return (sbyte)_errorCode;
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}
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}
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public override String ToString()
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{
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StringBuilder sb = new StringBuilder(64);
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sb.Append(GetType().Name).Append(" [");
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sb.Append(FormatAsString());
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sb.Append("]");
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return sb.ToString();
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}
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public String FormatAsString()
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{
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switch (_cellType)
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{
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case CellType.NUMERIC:
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return _numberValue.ToString(CultureInfo.InvariantCulture);
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case CellType.STRING:
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return '"' + _textValue + '"';
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case CellType.BOOLEAN:
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return _boolValue ? "TRUE" : "FALSE";
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case CellType.ERROR:
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return ErrorEval.GetText(_errorCode);
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}
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return "<error unexpected cell type " + _cellType + ">";
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}
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}
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}
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