swing画太极图案源码

package org.open.swing.taiji;



/**

 * @(#)Taichi.java

 *

 *

 * @author 

 * @version 1.00 2007/6/12

 */

import javax.swing.*;

import java.awt.*;



public class taiji extends JFrame {



    int width = 400;

    int height = 300;

    

    /**

     * @Fields serialVersionUID : TODO

     */

    private static final long serialVersionUID = 4561427255541891262L;

    /**

     * Creates a new instance of <code>Taichi</code>.

     */

    public taiji() {

        setSize(width, height);

        setTitle("太极图");

        Toolkit kit = Toolkit.getDefaultToolkit();

        Dimension screenSize = kit.getScreenSize();

        int x = (screenSize.width  - width) / 2;

        int y = (screenSize.height - height) / 2;

        setLocation(x, y);

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }



    /**

     * @param args

     *            the command line arguments

     */

    public static void main(String[] args) {

        // TODO code application logic here

        taiji frame = new taiji();

        DrawPanel drawPanel = new DrawPanel();

        frame.setContentPane(drawPanel);

        frame.setVisible(true);

    }



}



class DrawPanel extends JPanel {

    /**

     * @Fields serialVersionUID : TODO

     */

    private static final long serialVersionUID = 5533924769973854832L;

    public DrawPanel() {

        setBackground(Color.GRAY);

    }



    public void paintComponent(Graphics g) {

        super.paintComponent(g);

        g.setColor(Color.BLACK);

        g.fillArc(x, y, d, d, 0, 180);

        g.setColor(Color.WHITE);

        g.fillArc(x, y, d, d, 180, 180);

        g.setColor(Color.BLACK);

        g.fillArc(x + d / 2, y + d / 4, d / 2, d / 2, 180, 180);

        g.setColor(Color.WHITE);

        g.fillArc(x, y + d / 4, d / 2, d / 2, 0, 180);

        g.fillOval(x + d * 3 / 4 - 5, y + d / 2 - 5, 10, 10);

        g.setColor(Color.BLACK);

        g.fillOval(x + d / 4 - 5, y + d / 2 - 5, 10, 10);

    }



    int x = 100;

    int y = 40;

    int d = 200;

}