poi/src/java/org/apache/poi/hssf/record/formula/NumberPtg.java

73 lines
2.4 KiB
Java

/* ====================================================================
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.
==================================================================== */
package org.apache.poi.hssf.record.formula;
import org.apache.poi.util.LittleEndian;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.hssf.record.RecordInputStream;
/**
* Number
* Stores a floating point value in a formula
* value stored in a 8 byte field using IEEE notation
* @author Avik Sengupta
* @author Jason Height (jheight at chariot dot net dot au)
*/
public final class NumberPtg extends ScalarConstantPtg {
public final static int SIZE = 9;
public final static byte sid = 0x1f;
private final double field_1_value;
/** Create a NumberPtg from a byte array read from disk */
public NumberPtg(RecordInputStream in)
{
field_1_value = in.readDouble();
}
/** Create a NumberPtg from a string representation of the number
* Number format is not checked, it is expected to be validated in the parser
* that calls this method.
* @param value : String representation of a floating point number
*/
public NumberPtg(String value) {
field_1_value = Double.parseDouble(value);
}
public double getValue()
{
return field_1_value;
}
public void writeBytes(byte [] array, int offset)
{
array[ offset + 0 ] = sid;
LittleEndian.putDouble(array, offset + 1, getValue());
}
public int getSize()
{
return SIZE;
}
public String toFormulaString(HSSFWorkbook book)
{
return "" + getValue();
}
}