using System;
using System.Collections.Generic;
using System.Text;
using System.Runtime.InteropServices;
using Biff8Excel.Interfaces;

namespace Biff8Excel.Records
{
    [StructLayoutAttribute(LayoutKind.Sequential, CharSet = CharSet.Auto, Pack = 1)]
    struct RecordSelection
    {
        public ushort opcode;
        public ushort length;
        public ushort paneid;
        public ushort activeRow;
        public ushort activeCol;
        public ushort index;
    }

    internal class Selection : IRecords 
    {
        RecordSelection selection;

        public Selection()
        {
            selection.opcode = 0x1D;
            selection.length = 0xF;
            selection.paneid = 0x3;
            selection.index = 0x0;
        }

        public ushort Row
        {
            set { selection.activeRow = value; }
        }

        public ushort Column
        {
            set { selection.activeCol = value; }
        }

        #region IRecords ³ΙΤ±

        public byte[] GetByte()
        {
            byte[] b = new byte[18];
            Globals.GetStructToBytes(selection).CopyTo(b, 0);

            BitConverter.GetBytes(selection.activeRow).CopyTo(b, 12);
            BitConverter.GetBytes(selection.activeRow).CopyTo(b, 14);
            b[16] = BitConverter.GetBytes(selection.activeCol)[0];
            b[17] = BitConverter.GetBytes(selection.activeCol)[0];
            b[18] = 0;

            return b;
        }

        #endregion
    }
}