Checkers - GameWindow

/**
 * GUI class with Checkers main method. GameWindow is an inherited class of
 * JFrame.
 *
 * @author
 */

import java.awt.*;
import javax.swing.*;
import javax.swing.border.*;

public class GameWindow extends JFrame
{

    private final JPanel playArea = new JPanel(new BorderLayout(3, 3));
    static JPanel board; //checkers board as a JPanel.
    static Timer timer;
    JButton newGame;
    JButton resign;
    JButton help;
//    private final JPanel sidebar = new JPanel()
//    {
//        @Override
//        public Dimension getPreferredSize()
//        {
//            return new Dimension(200, 100);
//        }
//    };

    public GameWindow()
    {
        super(); //takes on attributes of JFrame
        playArea.setBorder(new EmptyBorder(5, 5, 5, 5)); //unimportant

        //creates toolbar along top of JFrame.
        JToolBar tools = new JToolBar();

        tools.setFloatable(false); //fixed toolbar
        playArea.add(tools, BorderLayout.PAGE_START); //position at top
        tools.add(newGame = new JButton("New Game")); //New Game button initialises board.
        tools.add(resign = new JButton("Resign")); //Ends game.
        tools.addSeparator();
        tools.add(help = new JButton(" ? "));
        tools.addSeparator(); //unimportant
        tools.add(new JLabel("Game by Aidan de Nobrega - DNBAID001")); //signature
        tools.add(Box.createHorizontalGlue()); //affixes components created from here to right end of toolbar

        //counter creation
        JLabel clock = new JLabel("Count: 0"); //timer that starts when "New Game" is clicked
        tools.add(clock);
        MyListener clockEar = new MyListener(clock);
        timer = new Timer(1000, clockEar);

        tools.addSeparator();
        tools.addSeparator();
        tools.add(new JButton("Pause"));
        //end of toolbar creation.

        //creates checkers board
        board = new JPanel(new GridLayout(8, 8)) //8x8 board
        {
            @Override
            public Dimension getPreferredSize()
            {
                return new Dimension(600, 600); //fixes board to square shape.
            }
        };
        board.setBorder(new LineBorder(Color.BLACK));
        playArea.add(board, BorderLayout.CENTER); //fills area below toolbar
        //playArea.add(sidebar, BorderLayout.LINE_END);

        /**
         * Creates boardSquares each of which is an object of JButton.
         * Each square is added to boardSquares array in BoardSquare class.
         * When square is instantiated, it is either red or black.
         *
         * @see BoardSquare class.
         */
        for (int i = 0; i < BoardSquare.boardSquares.length; i++)
        {
            for (int j = 0; j < BoardSquare.boardSquares[i].length; j++)
            {
                //red and black squares alternate
                if ((i + j) % 2 == 0)
                {
                    BoardSquare square = new BoardSquare(true, j, i); //parameter - isRed
                    board.add(BoardSquare.boardSquares[j][i] = square);
                }
                else
                {
                    BoardSquare square = new BoardSquare(false, j, i);
                    board.add(BoardSquare.boardSquares[j][i] = square);
                }
                BoardSquare.boardSquares[j][i].add(new JLabel((j+1)+":"+(i+1)));
            }
        }
    }

//    public final JComponent getChessBoard()
//    {
//        return board;
//    }

    public static void main(String[] args)
    {

        GameWindow window = new GameWindow();

        JFrame frame = new JFrame("Checkers");
        frame.setResizable(false); //GameWindow is fixed size and shape.
        frame.add(window.playArea);
        frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        frame.setLocationByPlatform(true);
        frame.pack(); //playArea fills space in JFrame.
        frame.setVisible(true);
        BoardSquare.initialise(); //game initialised
    }
}