/*********************************************************************
 *
 *      Copyright (C) 2002 Andrew Khan
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 ***************************************************************************/

package jxl.write.biff;

import jxl.biff.IntegerHelper;
import jxl.biff.Type;
import jxl.biff.WritableRecordData;

/**
 * The calculation mode for the workbook, as set from the Options
 * dialog box
 */
class CalcModeRecord extends WritableRecordData {
    /**
     * Manual calculation
     */
    static CalcMode manual = new CalcMode(0);
    /**
     * Automatic calculation
     */
    static CalcMode automatic = new CalcMode(1);
    /**
     * Automatic calculation, except tables
     */
    static CalcMode automaticNoTables = new CalcMode(-1);
    /**
     * The calculation mode (manual, automatic)
     */
    private final CalcMode calculationMode;
    /**
     * Constructor
     *
     * @param cm the calculation mode
     */
    public CalcModeRecord(CalcMode cm) {
        super(Type.CALCMODE);
        calculationMode = cm;
    }

    /**
     * Gets the binary to data to write to the output file
     *
     * @return the binary data
     */
    public byte[] getData() {
        byte[] data = new byte[2];

        IntegerHelper.getTwoBytes(calculationMode.value, data, 0);

        return data;
    }

    private static class CalcMode {
        /**
         * The indicator as written to the output file
         */
        int value;

        /**
         * Constructor
         *
         * @param m
         */
        public CalcMode(int m) {
            value = m;
        }
    }
}


