/*********************************************************************
 *
 *      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 org.xbib.datastructures.xslx.jxl.read.biff;

import org.xbib.datastructures.xslx.jxl.biff.IntegerHelper;
import org.xbib.datastructures.xslx.jxl.biff.RecordData;
import org.xbib.datastructures.xslx.jxl.common.Logger;

/**
 * Contains an array of RK numbers
 */
class MulRKRecord extends RecordData {
    /**
     * The logger
     */
    private static final Logger logger = Logger.getLogger(MulRKRecord.class);

    /**
     * The row  containing these numbers
     */
    private final int row;
    /**
     * The first column these rk number occur on
     */
    private final int colFirst;
    /**
     * The last column these rk numbers occur on
     */
    private final int colLast;
    /**
     * The number of rk numbers contained in this record
     */
    private final int numrks;
    /**
     * The array of rk numbers
     */
    private final int[] rknumbers;
    /**
     * The array of xf indices
     */
    private final int[] xfIndices;

    /**
     * Constructs the rk numbers from the raw data
     *
     * @param t the raw data
     */
    public MulRKRecord(Record t) {
        super(t);
        byte[] data = getRecord().getData();
        int length = getRecord().getLength();
        row = IntegerHelper.getInt(data[0], data[1]);
        colFirst = IntegerHelper.getInt(data[2], data[3]);
        colLast = IntegerHelper.getInt(data[length - 2], data[length - 1]);
        numrks = colLast - colFirst + 1;
        rknumbers = new int[numrks];
        xfIndices = new int[numrks];

        readRks(data);
    }

    /**
     * Reads the rks from the raw data
     *
     * @param data the raw data
     */
    private void readRks(byte[] data) {
        int pos = 4;
        int rk;
        for (int i = 0; i < numrks; i++) {
            xfIndices[i] = IntegerHelper.getInt(data[pos], data[pos + 1]);
            rk = IntegerHelper.getInt
                    (data[pos + 2], data[pos + 3], data[pos + 4], data[pos + 5]);
            rknumbers[i] = rk;
            pos += 6;
        }
    }

    /**
     * Accessor for the row
     *
     * @return the row of containing these rk numbers
     */
    public int getRow() {
        return row;
    }

    /**
     * The first column containing the rk numbers
     *
     * @return the first column
     */
    public int getFirstColumn() {
        return colFirst;
    }

    /**
     * Accessor for the number of rk values
     *
     * @return the number of rk values
     */
    public int getNumberOfColumns() {
        return numrks;
    }

    /**
     * Returns a specific rk number
     *
     * @param index the rk number to return
     * @return the rk number in bits
     */
    public int getRKNumber(int index) {
        return rknumbers[index];
    }

    /**
     * Return a specific formatting index
     *
     * @param index the index of the cell in this group
     * @return the xf index
     */
    public int getXFIndex(int index) {
        return xfIndices[index];
    }
}




