66 lines
2.2 KiB
Java
66 lines
2.2 KiB
Java
/*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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package org.apache.poi.hssf.record.formula.eval;
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import org.apache.poi.hssf.record.formula.AreaI;
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import org.apache.poi.hssf.record.formula.AreaI.OffsetArea;
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import org.apache.poi.ss.usermodel.Cell;
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import org.apache.poi.ss.usermodel.FormulaEvaluator;
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import org.apache.poi.ss.usermodel.Row;
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import org.apache.poi.ss.usermodel.Sheet;
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import org.apache.poi.ss.usermodel.Workbook;
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/**
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* @author Amol S. Deshmukh < amolweb at ya hoo dot com >
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*
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*/
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public final class LazyAreaEval extends AreaEvalBase {
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private final Sheet _sheet;
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private Workbook _workbook;
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public LazyAreaEval(AreaI ptg, Sheet sheet, Workbook workbook) {
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super(ptg);
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_sheet = sheet;
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_workbook = workbook;
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}
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public ValueEval getRelativeValue(int relativeRowIndex, int relativeColumnIndex) {
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int rowIx = (relativeRowIndex + getFirstRow() ) & 0xFFFF;
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int colIx = (relativeColumnIndex + getFirstColumn() ) & 0x00FF;
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Row row = _sheet.getRow(rowIx);
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if (row == null) {
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return BlankEval.INSTANCE;
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}
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Cell cell = row.getCell(colIx);
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if (cell == null) {
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return BlankEval.INSTANCE;
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}
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return FormulaEvaluator.getEvalForCell(cell, _sheet, _workbook);
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}
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public AreaEval offset(int relFirstRowIx, int relLastRowIx, int relFirstColIx, int relLastColIx) {
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AreaI area = new OffsetArea(getFirstRow(), getFirstColumn(),
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relFirstRowIx, relLastRowIx, relFirstColIx, relLastColIx);
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return new LazyAreaEval(area, _sheet, _workbook);
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}
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}
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