90 lines
2.5 KiB
Java
90 lines
2.5 KiB
Java
/* ====================================================================
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Copyright 2003-2004 Apache Software Foundation
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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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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package org.apache.poi.hssf.record.formula;
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import org.apache.poi.util.LittleEndian;
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import org.apache.poi.hssf.model.Workbook;
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/**
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* Number
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* Stores a floating point value in a formula
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* value stored in a 8 byte field using IEEE notation
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* @author Avik Sengupta
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* @author Jason Height (jheight at chariot dot net dot au)
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*/
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public class NumberPtg
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extends Ptg
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{
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public final static int SIZE = 9;
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public final static byte sid = 0x1f;
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private double field_1_value;
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private NumberPtg() {
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//Required for clone methods
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}
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/** Create a NumberPtg from a byte array read from disk */
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public NumberPtg(byte [] data, int offset)
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{
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setValue(LittleEndian.getDouble(data, offset + 1));
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}
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/** Create a NumberPtg from a string representation of the number
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* Number format is not checked, it is expected to be validated in the parser
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* that calls this method.
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* @param value : String representation of a floating point number
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*/
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public NumberPtg(String value) {
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setValue(Double.parseDouble(value));
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}
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public void setValue(double value)
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{
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field_1_value = value;
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}
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public double getValue()
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{
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return field_1_value;
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}
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public void writeBytes(byte [] array, int offset)
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{
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array[ offset + 0 ] = sid;
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LittleEndian.putDouble(array, offset + 1, getValue());
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}
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public int getSize()
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{
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return SIZE;
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}
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public String toFormulaString(Workbook book)
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{
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return "" + getValue();
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}
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public byte getDefaultOperandClass() {return Ptg.CLASS_VALUE;}
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public Object clone() {
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NumberPtg ptg = new NumberPtg();
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ptg.field_1_value = field_1_value;
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return ptg;
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}
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}
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