gistfile1.java

package sudoku.gui;

import sudoku.model.SudokuModel;
import static javax.swing.SwingUtilities.invokeLater;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.SwingWorker;

public class SudokuGui {

    private JFrame frame;
    private SudokuModel model;

    public SudokuGui(SudokuModel model) {
        this.model = model;

        invokeLater(new Runnable() {

            public void run() {
                buildGui();
            }
        });
    }

    private void buildGui() {
        frame = new JFrame("Sudoku Solver");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setMinimumSize(new Dimension(550, 550));

        JMenuBar menus = new JMenuBar();

        JMenu sudokuMenu = new JMenu("Sudoku");
        JMenuItem loadItem = new JMenuItem("Load Puzzle");
        loadItem.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                loadPuzzle();
            }
        });
        sudokuMenu.add(loadItem);

        menus.add(sudokuMenu);

        final JPanel mainPanel = new JPanel();
        mainPanel.setLayout(new GridLayout(3, 3, 0, 0));

        for (int i = 0; i < 9; i++) {
            mainPanel.add(new BoxRenderer(model, i));
        }

        JPanel buttons = new JPanel();
        JButton btn = new JButton("Solve");
        btn.addActionListener(new ActionListener() {

            @Override
            public void actionPerformed(ActionEvent e) {
                new SwingWorker() {

                    @Override
                    protected Object doInBackground() throws Exception {
                        model.solve();


                        JOptionPane.showMessageDialog(frame, "Finished.");

                        return model;
                    }
                }.execute();
            }
        });

        buttons.add(btn);
        btn = new JButton("Reset");
        buttons.add(btn);

        frame.setJMenuBar(menus);
        frame.add(mainPanel, BorderLayout.CENTER);
        frame.add(buttons, BorderLayout.SOUTH);

        frame.pack();
    }

    public void show() {
        invokeLater(new Runnable() {

            public void run() {
                frame.setVisible(true);
            }
        });
    }

    private void loadPuzzle() {
    }
}