calcmoderecord.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.
 *
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 * 1. Redistributions of source code must retain the above copyright
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 *    notice, this list of conditions and the following disclaimer in
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 *
 * 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.
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 * 4. The names "Apache" and "Apache Software Foundation" and
 *    "Apache POI" must not be used to endorse or promote products
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 * 5. Products derived from this software may not be called "Apache",
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 * ====================================================================
 *
 * 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/>.
 */

package org.apache.poi.hssf.record;

import org.apache.poi.util.LittleEndian;

/**
 * Title:        Calc Mode Record<P>
 * Description:  Tells the gui whether to calculate formulas
 *               automatically, manually or automatically
 *               except for tables.<P>
 * REFERENCE:  PG 292 Microsoft Excel 97 Developer's Kit (ISBN: 1-57231-498-2)<P>
 * @author Andrew C. Oliver (acoliver at apache dot org)
 * @author Jason Height (jheight at chariot dot net dot au)
 * @version 2.0-pre
 * @see org.apache.poi.hssf.record.CalcCountRecord
 */

public class CalcModeRecord
    extends Record
{
    public final static short sid                     = 0xD;

    /**
     * manually calculate formulas (0)
     */

    public final static short MANUAL                  = 0;

    /**
     * automatically calculate formulas (1)
     */

    public final static short AUTOMATIC               = 1;

    /**
     * automatically calculate formulas except for tables (-1)
     */

    public final static short AUTOMATIC_EXCEPT_TABLES = -1;
    private short             field_1_calcmode;

    public CalcModeRecord()
    {
    }

    /**
     * Constructs a CalcModeRecord and sets its fields appropriately
     *
     * @param id     id must be 0xD or an exception will be throw upon validation
     * @param size  the size of the data area of the record
     * @param data  data of the record (should not contain sid/len)
     */

    public CalcModeRecord(short id, short size, byte [] data)
    {
        super(id, size, data);
    }

    /**
     * Constructs a CalcModeRecord and sets its fields appropriately
     *
     * @param id     id must be 0xD or an exception will be throw upon validation
     * @param size  the size of the data area of the record
     * @param data  data of the record (should not contain sid/len)
     * @param offset of the record's start data
     */

    public CalcModeRecord(short id, short size, byte [] data, int offset)
    {
        super(id, size, data, offset);
    }

    protected void validateSid(short id)
    {
        if (id != sid)
        {
            throw new RecordFormatException("NOT An Calc Mode RECORD");
        }
    }

    protected void fillFields(byte [] data, short size, int offset)
    {
        field_1_calcmode = LittleEndian.getShort(data, 0 + offset);
    }

    /**
     * set the calc mode flag for formulas
     *
     * @see #MANUAL
     * @see #AUTOMATIC
     * @see #AUTOMATIC_EXCEPT_TABLES
     *
     * @param calcmode one of the three flags above
     */

    public void setCalcMode(short calcmode)
    {
        field_1_calcmode = calcmode;
    }

    /**
     * get the calc mode flag for formulas
     *
     * @see #MANUAL
     * @see #AUTOMATIC
     * @see #AUTOMATIC_EXCEPT_TABLES
     *
     * @return calcmode one of the three flags above
     */

    public short getCalcMode()
    {
        return field_1_calcmode;
    }

    public String toString()
    {
        StringBuffer buffer = new StringBuffer();

        buffer.append("[CALCMODE]\n");
        buffer.append("    .calcmode       = ")
            .append(Integer.toHexString(getCalcMode())).append("\n");
        buffer.append("[/CALCMODE]\n");
        return buffer.toString();
    }

    public int serialize(int offset, byte [] data)
    {
        LittleEndian.putShort(data, 0 + offset, sid);
        LittleEndian.putShort(data, 2 + offset, ( short ) 0x2);
        LittleEndian.putShort(data, 4 + offset, getCalcMode());
        return getRecordSize();
    }

    public int getRecordSize()
    {
        return 6;
    }

    public short getSid()
    {
        return this.sid;
    }

    public Object clone() {
      CalcModeRecord rec = new CalcModeRecord();
      rec.field_1_calcmode = field_1_calcmode;
      return rec;
    }
}