/*
|
* Licensed to the Apache Software Foundation (ASF) Under one or more
|
* contributor license agreements. See the NOTICE file distributed with
|
* this work for Additional information regarding copyright ownership.
|
* The ASF licenses this file to You Under the Apache License, Version 2.0
|
* (the "License"); you may not use this file except in compliance with
|
* the License. You may obtain a copy of the License at
|
*
|
* http://www.apache.org/licenses/LICENSE-2.0
|
*
|
* Unless required by applicable law or agreed to in writing, software
|
* distributed Under the License is distributed on an "AS Is" BASIS,
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
* See the License for the specific language governing permissions and
|
* limitations Under the License.
|
*/
|
/*
|
* Created on Nov 25, 2006
|
*
|
*/
|
namespace HH.WMS.Utils.NPOI.SS.Formula.Functions
|
{
|
using System;
|
using HH.WMS.Utils.NPOI.SS.Formula.Eval;
|
|
/**
|
* @author Amol S. Deshmukh < amolweb at ya hoo dot com >
|
*
|
*/
|
public class If : Var2or3ArgFunction
|
{
|
|
public override ValueEval Evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0, ValueEval arg1)
|
{
|
bool b;
|
try
|
{
|
b = EvaluateFirstArg(arg0, srcRowIndex, srcColumnIndex);
|
}
|
catch (EvaluationException e)
|
{
|
return e.GetErrorEval();
|
}
|
if (b)
|
{
|
if (arg1 == MissingArgEval.instance)
|
{
|
return BlankEval.instance;
|
}
|
return arg1;
|
}
|
return BoolEval.FALSE;
|
}
|
|
public override ValueEval Evaluate(int srcRowIndex, int srcColumnIndex, ValueEval arg0, ValueEval arg1,
|
ValueEval arg2)
|
{
|
bool b;
|
try
|
{
|
b = EvaluateFirstArg(arg0, srcRowIndex, srcColumnIndex);
|
}
|
catch (EvaluationException e)
|
{
|
return e.GetErrorEval();
|
}
|
if (b)
|
{
|
if (arg1 == MissingArgEval.instance)
|
{
|
return BlankEval.instance;
|
}
|
return arg1;
|
}
|
if (arg2 == MissingArgEval.instance)
|
{
|
return BlankEval.instance;
|
}
|
return arg2;
|
}
|
|
public static bool EvaluateFirstArg(ValueEval arg, int srcCellRow, int srcCellCol)
|
{
|
ValueEval ve = OperandResolver.GetSingleValue(arg, srcCellRow, srcCellCol);
|
bool? b = OperandResolver.CoerceValueToBoolean(ve, false);
|
if (b == null)
|
{
|
return false;
|
}
|
return (bool)b;
|
}
|
}
|
}
|