intptg.java

Office格式转换代码

/* ====================================================================
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2003 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution,
 *    if any, must include the following acknowledgment:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowledgment may appear in the software itself,
 *    if and wherever such third-party acknowledgments normally appear.
 *
 * 4. The names "Apache" and "Apache Software Foundation" and
 *    "Apache POI" must not be used to endorse or promote products
 *    derived from this software without prior written permission. For
 *    written permission, please contact [e-mail].
 *
 * 5. Products derived from this software may not be called "Apache",
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 *
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 * ====================================================================
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
 * <http://www.apache.org/>.
 */

/*
 * IntPtg.java
 *
 * Created on October 29, 2001, 7:37 PM
 */
package org.apache.poi.hssf.record.formula;

import org.apache.poi.util.LittleEndian;
import org.apache.poi.hssf.model.Workbook;

/**
 * Integer (short intger)
 * Stores a (java) short value in a formula
 * @author  Andrew C. Oliver (acoliver at apache dot org)
 * @author Jason Height (jheight at chariot dot net dot au)
 */

public class IntPtg
    extends Ptg
{
    public final static int  SIZE = 3;
    public final static byte sid  = 0x1e;
    private short            field_1_value;

    private String val;
    private int strlen = 0;
  
    private IntPtg() {
      //Required for clone methods
    }

    public IntPtg(byte [] data, int offset)
    {
        setValue(LittleEndian.getShort(data, offset + 1));
    }
    
    
    // IntPtg should be able to create itself, shouldnt have to call setValue
    public IntPtg(String formulaToken) {
        setValue(Short.parseShort(formulaToken));
    }

    public void setValue(short value)
    {
        field_1_value = value;
    }

    public short getValue()
    {
        return field_1_value;
    }

    public void writeBytes(byte [] array, int offset)
    {
        array[ offset + 0 ] = sid;
        LittleEndian.putShort(array, offset + 1, getValue());
    }

    public int getSize()
    {
        return SIZE;
    }

    public String toFormulaString(Workbook book)
    {
        return "" + getValue();
    }
 public byte getDefaultOperandClass() {return Ptg.CLASS_VALUE;}   

   public Object clone() {
     IntPtg ptg = new IntPtg();
     ptg.field_1_value = field_1_value;
     return ptg;
   }
}