https://stackoverflow.com/questions/21432435
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Russian- You should put your chessBoard JPanel into another BorderLayout-using JPanel.
- This container JPanel will hold a GridLayout using JPanel on the left and on the bottom.
- And these can hold JLabels which hold your row and column labels.
Edit
- On second thought, better for the container JPanel to use a GridBagLayout so that the side JPanels will size correctly.
Edit 2
For example:
import java.awt.*;
import javax.swing.*;
@SuppressWarnings("serial")
public class ChessGame2 extends JPanel {
private static final int RANKS = 8;
private static final int FILES = RANKS;
private static final int SIDE = 80;
private static final Dimension SQUARE_SIZE = new Dimension(SIDE, SIDE);
private static final Color LIGHT_COLOR = new Color(238, 221, 187);
private static final Color DARK_COLOR = new Color(204, 136, 68);
private static final int GAP = 5;
private JPanel chessBoard = new JPanel(new GridLayout(RANKS, FILES));
public ChessGame2() {
for (int rank = 0; rank < RANKS; rank++) {
for (int file = 0; file < FILES; file++) {
JPanel square = new JPanel();
square.setPreferredSize(SQUARE_SIZE);
Color bg = (rank % 2 == file % 2) ? LIGHT_COLOR : DARK_COLOR;
square.setBackground(bg);
chessBoard.add(square);
}
}
setLayout(new GridBagLayout());
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 1;
gbc.gridwidth = 1;
gbc.gridheight = 1;
gbc.weightx = 0.0;
gbc.weighty = 0.0;
gbc.fill = GridBagConstraints.BOTH;
gbc.anchor = GridBagConstraints.WEST;
gbc.insets = new Insets(0, 2 * GAP, 0, 2 * GAP);
add(createRankPanel(), gbc);
gbc.gridx = 2;
gbc.anchor = GridBagConstraints.EAST;
add(createRankPanel(), gbc);
gbc.gridx = 1;
gbc.gridy = 0;
gbc.anchor = GridBagConstraints.SOUTH;
gbc.insets = new Insets(GAP, 0, GAP, 0);
add(createFilePanel(), gbc);
gbc.gridy = 2;
gbc.anchor = GridBagConstraints.NORTH;
add(createFilePanel(), gbc);
gbc.gridx = 1;
gbc.gridy = 1;
gbc.anchor = GridBagConstraints.CENTER;
gbc.insets = new Insets(0, 0, 0, 0);
add(chessBoard, gbc);
}
private JPanel createFilePanel() {
JPanel filePanel = new JPanel(new GridLayout(1, 0));
for (int i = 0; i < FILES; i++) {
char fileChar = (char) ('A' + i);
filePanel.add(new JLabel(String.valueOf(fileChar), SwingConstants.CENTER));
}
return filePanel;
}
private JPanel createRankPanel() {
JPanel rankPanel = new JPanel(new GridLayout(0, 1));
for (int i = 0; i < RANKS; i++) {
int row = RANKS - i;
rankPanel.add(new JLabel(String.valueOf(row)));
}
return rankPanel;
}
private static void createAndShowGui() {
ChessGame2 mainPanel = new ChessGame2();
JFrame frame = new JFrame("Chess Game");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(mainPanel);
frame.pack();
frame.setLocationByPlatform(true);
frame.setVisible(true);
}
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
createAndShowGui();
}
});
}
}
Which displays as:
