/* ====================================================================
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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.Formula.Functions
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{
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using System;
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using HH.WMS.Utils.NPOI.SS.Formula.Eval;
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/**
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* Common interface for the matching criteria.
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*/
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public interface I_MatchPredicate
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{
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bool Matches(ValueEval x);
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}
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public interface I_MatchAreaPredicate : I_MatchPredicate
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{
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bool Matches(TwoDEval x, int rowIndex, int columnIndex);
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}
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/**
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* Common logic for COUNT, COUNTA and COUNTIF
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*
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* @author Josh Micich
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*/
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class CountUtils
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{
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private CountUtils()
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{
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// no instances of this class
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}
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/**
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* @return 1 if the evaluated cell matches the specified criteria
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*/
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public static int CountMatchingCell(RefEval refEval, I_MatchPredicate criteriaPredicate)
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{
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if (criteriaPredicate.Matches(refEval.InnerValueEval))
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{
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return 1;
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}
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return 0;
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}
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public static int CountArg(ValueEval eval, I_MatchPredicate criteriaPredicate)
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{
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if (eval == null)
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{
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throw new ArgumentException("eval must not be null");
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}
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if (eval is TwoDEval)
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{
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return CountUtils.CountMatchingCellsInArea((TwoDEval)eval, criteriaPredicate);
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}
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if (eval is RefEval)
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{
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return CountUtils.CountMatchingCell((RefEval)eval, criteriaPredicate);
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}
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return criteriaPredicate.Matches(eval) ? 1 : 0;
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}
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/**
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* @return the number of evaluated cells in the range that match the specified criteria
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*/
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public static int CountMatchingCellsInArea(TwoDEval areaEval, I_MatchPredicate criteriaPredicate)
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{
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int result = 0;
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int height = areaEval.Height;
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int width = areaEval.Width;
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for (int rrIx = 0; rrIx < height; rrIx++)
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{
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for (int rcIx = 0; rcIx < width; rcIx++)
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{
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ValueEval ve = areaEval.GetValue(rrIx, rcIx);
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if (criteriaPredicate is I_MatchAreaPredicate)
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{
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I_MatchAreaPredicate areaPredicate = (I_MatchAreaPredicate)criteriaPredicate;
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if (!areaPredicate.Matches(areaEval, rrIx, rcIx)) continue;
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}
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if (criteriaPredicate.Matches(ve))
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{
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result++;
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}
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}
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}
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return result;
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}
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}
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}
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