Board.cs

using System.ComponentModel;
using System.Drawing;
using System.Windows.Forms;
using WinChessGUI.Properties;
using Color = System.Drawing.Color;

namespace WinChessGUI
{
    /// <summary>
    /// Used to display a chess board.
    /// </summary>
    [ToolboxBitmap(@"Board.bmp")] // TODO: Fix icon for toolbox.
    public partial class Board : UserControl
    {
        private Panel[,] _squares;

        /// <summary>
        /// Initializes a new instance of the Board class.
        /// </summary>
        public Board()
        {
            InitializeComponent();
            _squares = new Panel[8, 8];
            SelectedSquareX = SelectedSquareY = HighlightedSquareX = HighlightedSquareY = -1;

            // Initializes the colors for hovering and selecting squares TODO: Remove this in future?
            SelectedSquareColor = Color.FromArgb(255, 40, 255, 87);
            HighlightedSquareColor = Color.FromArgb(255, 141, 252, 165);

            // Disables double clicking on the control.
            SetStyle(ControlStyles.StandardDoubleClick, false);

            // Prevents the control from flickering when updating.
            DoubleBuffered = true;

            InitializeSquares();
        }

        /// <summary>
        /// Initializes the panels.
        /// </summary>
        private void InitializeSquares()
        {
            for (int i = 0; i < 8; i++)
            {
                for (int j = 0; j < 8; j++)
                {
                    _squares[i, j] = new Panel();
                    _squares[i, j].Width = Width / 8;
                    _squares[i, j].Height = Height / 8;
                    _squares[i, j].Left = i * (Width / 8);
                    _squares[i, j].Top = j * (Height / 8);

                    if (i % 2 == 0 && j % 2 == 0 || i % 2 == 1 && j % 2 == 1)
                        _squares[i, j].BackColor = LightSquareColor;
                    else
                        _squares[i, j].BackColor = DarkSquareColor;

                    Controls.Add(_squares[i, j]);
                }
            }
        }

        private void Board_Paint(object sender, PaintEventArgs e)
        {
           // TODO: Repaint algorithm with selected/hovered squares
        }

        /// <summary>
        /// The color for the dark squares on the board.
        /// </summary>
        [Category("Appearance"), Description("The color for the dark squares on the board.")]
        public Color DarkSquareColor { get; set; }

        /// <summary>
        /// The color for the light squares on the board.
        /// </summary>
        [Category("Appearance"), Description("The color for the light squares on the board.")]
        public Color LightSquareColor { get; set; }

        /// <summary>
        /// The color for the currently selected square on the board.
        /// </summary>
        [Category("Appearance"), Description("The color for the currently selected square on the board.")]
        public Color SelectedSquareColor { get; set; }

        /// <summary>
        /// The color for the highlighted square on the board.
        /// </summary>
        [Category("Appearance"), Description("The color for the highlighted square on the board.")]
        public Color HighlightedSquareColor { get; set; }

        /// <summary>
        /// The X-coordinate of the selected square.
        /// </summary>
        public int SelectedSquareX { get; set; }

        /// <summary>
        /// The Y-coordinate of the selected square.
        /// </summary>
        public int SelectedSquareY { get; set; }

        /// <summary>
        /// The X-coordinate of the hovered square.
        /// </summary>
        public int HighlightedSquareX { get; set; }

        /// <summary>
        /// The Y-coordinate of the hovered square.
        /// </summary>
        public int HighlightedSquareY { get; set; }
    }
}