114 lines
3.1 KiB
Java
114 lines
3.1 KiB
Java
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/* ====================================================================
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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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/*
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* IntPtg.java
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*
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* Created on October 29, 2001, 7:37 PM
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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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import org.apache.poi.hssf.record.RecordInputStream;
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/**
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* Integer (unsigned short intger)
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* Stores an unsigned short value (java int) in a formula
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* @author Andrew C. Oliver (acoliver at apache dot org)
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* @author Jason Height (jheight at chariot dot net dot au)
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*/
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public class IntPtg
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extends Ptg
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{
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public final static int SIZE = 3;
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public final static byte sid = 0x1e;
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private int field_1_value;
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private IntPtg() {
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//Required for clone methods
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}
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public IntPtg(RecordInputStream in)
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{
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setValue(in.readUShort());
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}
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// IntPtg should be able to create itself, shouldnt have to call setValue
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public IntPtg(String formulaToken) {
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setValue(Integer.parseInt(formulaToken));
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}
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/**
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* Sets the wrapped value.
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* Normally you should call with a positive int.
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*/
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public void setValue(int value)
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{
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if(value < 0 || value > (Short.MAX_VALUE + 1)*2 )
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throw new IllegalArgumentException("Unsigned short is out of range: " + value);
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field_1_value = value;
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}
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/**
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* Returns the value as a short, which may have
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* been wrapped into negative numbers
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*/
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public int getValue()
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{
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return field_1_value;
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}
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/**
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* Returns the value as an unsigned positive int.
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*/
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public int getValueAsInt()
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{
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if(field_1_value < 0) {
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return (Short.MAX_VALUE + 1)*2 + field_1_value;
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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.putUShort(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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IntPtg ptg = new IntPtg();
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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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