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 * 1. Redistributions of source code must retain the above copyright
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 *    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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 * 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:        Guts Record <P>
 * Description:  Row/column gutter sizes <P>
 * REFERENCE:  PG 320 Microsoft Excel 97 Developer's Kit (ISBN: 1-57231-498-2)<P>
 * @author Andrew C. Oliver (acoliver at apache dot org)
 * @version 2.0-pre
 */

public class GutsRecord
    extends Record
{
    public final static short sid = 0x80;
    private short             field_1_left_row_gutter;   // size of the row gutter to the left of the rows
    private short             field_2_top_col_gutter;    // size of the column gutter above the columns
    private short             field_3_row_level_max;     // maximum outline level for row gutters
    private short             field_4_col_level_max;     // maximum outline level for column gutters

    public GutsRecord()
    {
    }

    /**
     * Constructs a Guts record and sets its fields appropriately.
     *
     * @param id     id must be 0x80 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 GutsRecord(short id, short size, byte [] data)
    {
        super(id, size, data);
    }

    /**
     * Constructs a Guts record and sets its fields appropriately.
     *
     * @param id     id must be 0x80 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 data
     */

    public GutsRecord(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 A Guts RECORD");
        }
    }

    protected void fillFields(byte [] data, short size, int offset)
    {
        field_1_left_row_gutter = LittleEndian.getShort(data, 0 + offset);
        field_2_top_col_gutter  = LittleEndian.getShort(data, 2 + offset);
        field_3_row_level_max   = LittleEndian.getShort(data, 4 + offset);
        field_4_col_level_max   = LittleEndian.getShort(data, 6 + offset);
    }

    /**
     * set the size of the gutter that appears at the left of the rows
     *
     * @param gutter size in screen units
     */

    public void setLeftRowGutter(short gut)
    {
        field_1_left_row_gutter = gut;
    }

    /**
     * set the size of the gutter that appears at the above the columns
     *
     * @param gutter size in screen units
     */

    public void setTopColGutter(short gut)
    {
        field_2_top_col_gutter = gut;
    }

    /**
     * set the maximum outline level for the row gutter.
     *
     * @param maximum outline level
     */

    public void setRowLevelMax(short max)
    {
        field_3_row_level_max = max;
    }

    /**
     * set the maximum outline level for the col gutter.
     *
     * @param maximum outline level
     */

    public void setColLevelMax(short max)
    {
        field_4_col_level_max = max;
    }

    /**
     * get the size of the gutter that appears at the left of the rows
     *
     * @return gutter size in screen units
     */

    public short getLeftRowGutter()
    {
        return field_1_left_row_gutter;
    }

    /**
     * get the size of the gutter that appears at the above the columns
     *
     * @return gutter size in screen units
     */

    public short getTopColGutter()
    {
        return field_2_top_col_gutter;
    }

    /**
     * get the maximum outline level for the row gutter.
     *
     * @return maximum outline level
     */

    public short getRowLevelMax()
    {
        return field_3_row_level_max;
    }

    /**
     * get the maximum outline level for the col gutter.
     *
     * @return maximum outline level
     */

    public short getColLevelMax()
    {
        return field_4_col_level_max;
    }

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

        buffer.append("[GUTS]\n");
        buffer.append("    .leftgutter     = ")
            .append(Integer.toHexString(getLeftRowGutter())).append("\n");
        buffer.append("    .topgutter      = ")
            .append(Integer.toHexString(getTopColGutter())).append("\n");
        buffer.append("    .rowlevelmax    = ")
            .append(Integer.toHexString(getRowLevelMax())).append("\n");
        buffer.append("    .collevelmax    = ")
            .append(Integer.toHexString(getColLevelMax())).append("\n");
        buffer.append("[/GUTS]\n");
        return buffer.toString();
    }

    public int serialize(int offset, byte [] data)
    {
        LittleEndian.putShort(data, 0 + offset, sid);
        LittleEndian.putShort(data, 2 + offset, ( short ) 0x8);
        LittleEndian.putShort(data, 4 + offset, getLeftRowGutter());
        LittleEndian.putShort(data, 6 + offset, getTopColGutter());
        LittleEndian.putShort(data, 8 + offset, getRowLevelMax());
        LittleEndian.putShort(data, 10 + offset, getColLevelMax());
        return getRecordSize();
    }

    public int getRecordSize()
    {
        return 12;
    }

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