Dialog boxes and creating your own components : Dialog « Swing JFC « Java






Dialog boxes and creating your own components

Dialog boxes and creating your own components
   
// : c14:TicTacToe.java
// Dialog boxes and creating your own components.
// <applet code=TicTacToe width=200 height=100></applet>
// From 'Thinking in Java, 3rd ed.' (c) Bruce Eckel 2002
// www.BruceEckel.com. See copyright notice in CopyRight.txt.

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;

import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;

public class TicTacToe extends JApplet {
  private JTextField rows = new JTextField("3"), cols = new JTextField("3");

  private static final int BLANK = 0, XX = 1, OO = 2;

  class ToeDialog extends JDialog {
    private int turn = XX; // Start with x's turn

    ToeDialog(int cellsWide, int cellsHigh) {
      setTitle("The game itself");
      Container cp = getContentPane();
      cp.setLayout(new GridLayout(cellsWide, cellsHigh));
      for (int i = 0; i < cellsWide * cellsHigh; i++)
        cp.add(new ToeButton());
      setSize(cellsWide * 50, cellsHigh * 50);
      setDefaultCloseOperation(DISPOSE_ON_CLOSE);
    }

    class ToeButton extends JPanel {
      private int state = BLANK;

      public ToeButton() {
        addMouseListener(new ML());
      }

      public void paintComponent(Graphics g) {
        super.paintComponent(g);
        int x1 = 0, y1 = 0, x2 = getSize().width - 1, y2 = getSize().height - 1;
        g.drawRect(x1, y1, x2, y2);
        x1 = x2 / 4;
        y1 = y2 / 4;
        int wide = x2 / 2, high = y2 / 2;
        if (state == XX) {
          g.drawLine(x1, y1, x1 + wide, y1 + high);
          g.drawLine(x1, y1 + high, x1 + wide, y1);
        }
        if (state == OO)
          g.drawOval(x1, y1, x1 + wide / 2, y1 + high / 2);
      }

      class ML extends MouseAdapter {
        public void mousePressed(MouseEvent e) {
          if (state == BLANK) {
            state = turn;
            turn = (turn == XX ? OO : XX);
          } else
            state = (state == XX ? OO : XX);
          repaint();
        }
      }
    }
  }

  class BL implements ActionListener {
    public void actionPerformed(ActionEvent e) {
      JDialog d = new ToeDialog(Integer.parseInt(rows.getText()), Integer
          .parseInt(cols.getText()));
      d.setVisible(true);
    }
  }

  public void init() {
    JPanel p = new JPanel();
    p.setLayout(new GridLayout(2, 2));
    p.add(new JLabel("Rows", JLabel.CENTER));
    p.add(rows);
    p.add(new JLabel("Columns", JLabel.CENTER));
    p.add(cols);
    Container cp = getContentPane();
    cp.add(p, BorderLayout.NORTH);
    JButton b = new JButton("go");
    b.addActionListener(new BL());
    cp.add(b, BorderLayout.SOUTH);
  }

  public static void main(String[] args) {
    run(new TicTacToe(), 200, 100);
  }

  public static void run(JApplet applet, int width, int height) {
    JFrame frame = new JFrame();
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.getContentPane().add(applet);
    frame.setSize(width, height);
    applet.init();
    applet.start();
    frame.setVisible(true);
  }
} ///:~



           
         
    
    
  








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