import java.awt.BasicStroke;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.RenderingHints;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
import javax.swing.UIManager;

public class MenuFrame extends JFrame implements ActionListener
{
  private JMenu fileMenu;
  private JMenuItem fileOpenMenuItem;
  private JMenuItem fileSaveMenuItem;
  private JMenuItem fileQuitMenuItem;
  private JMenu createMenu;
  private JMenuItem createLineMenuItem;
  private JMenuItem createRectangleMenuItem;
  private JMenuItem createEllipseMenuItem;
  private JMenuItem createPolygonMenuItem;

  public MenuFrame()
  {
    setLayout(new BorderLayout());
    getContentPane().add(new DrawComponent(), BorderLayout.CENTER);

    JMenuBar menuBar = new JMenuBar();
    this.fileMenu = new JMenu("File");
    menuBar.add(this.fileMenu);
    this.fileOpenMenuItem = new JMenuItem("Open...");
    this.fileOpenMenuItem.addActionListener(this);
    this.fileOpenMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_O, InputEvent.CTRL_MASK));
    this.fileMenu.add(this.fileOpenMenuItem);

    this.fileSaveMenuItem = new JMenuItem("Save...");
    this.fileSaveMenuItem.addActionListener(this);
    this.fileSaveMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_S, InputEvent.CTRL_MASK));
    this.fileMenu.add(this. fileSaveMenuItem);

    this.fileQuitMenuItem = new JMenuItem("Quit");
    this.fileQuitMenuItem.addActionListener(this);
    this.fileQuitMenuItem.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_X, InputEvent.CTRL_MASK));
    this.fileMenu.add(this. fileQuitMenuItem);

    this.createMenu = new JMenu("Create");
    menuBar.add(this.createMenu);

    this.createLineMenuItem = new JMenuItem("Line");
    this.createLineMenuItem.addActionListener(this);
    this.createMenu.add(this.createLineMenuItem);

    this.createRectangleMenuItem = new JMenuItem("Rectangle");
    this.createRectangleMenuItem.addActionListener(this);
    this.createMenu.add(this.createRectangleMenuItem);

    this.createEllipseMenuItem = new JMenuItem("Ellipse");
    this.createEllipseMenuItem.addActionListener(this);
    this.createMenu.add(this.createEllipseMenuItem);

    this.createPolygonMenuItem = new JMenuItem("Polygon");
    this.createPolygonMenuItem.addActionListener(this);
    this.createMenu.add(this.createPolygonMenuItem);

    setJMenuBar(menuBar);
  }


  public void actionPerformed(ActionEvent event)
  {
    Object source = event.getSource();
    if (source == this.fileOpenMenuItem)
      System.out.println("Open selected");
    else if (source == this.fileSaveMenuItem)
      System.out.println("Save selected");
    else if (source == this.fileQuitMenuItem)
      System.out.println("Quit selected");
    else if (source == this.createLineMenuItem)
      System.out.println("Create line selected");
    else if (source == this.createRectangleMenuItem)
      System.out.println("Create rectangle selected");
    else if (source == this.createEllipseMenuItem)
      System.out.println("Create ellipse selected");
    else if (source == this.createPolygonMenuItem)
      System.out.println("Create polygon selected");
  }

  public class DrawComponent extends JComponent implements MouseListener, MouseMotionListener
  {
    public DrawComponent()
    {
      addMouseListener(this);
      addMouseMotionListener(this);
    }

    public void paintComponent(Graphics g)
    {
      Graphics2D g2d = (Graphics2D)g;
      g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
        RenderingHints.VALUE_ANTIALIAS_ON);
      g2d.setStroke(new BasicStroke(3.0f));
    }

    /** Called after mouseReleased() when mouse pressed and released at same spot */
    public void mouseClicked(MouseEvent e)
    {
      System.out.println(e);
    }

    /** Called when mouse button pressed */
    public void mousePressed(MouseEvent e)
    {
      System.out.println(e);
    }

    /** Called when mouse button released */
    public void mouseReleased(MouseEvent e)
    {
      System.out.println(e);
    }

    /** Called when mouse moved into a component's region */
    public void mouseEntered(MouseEvent e)
    {
      System.out.println(e);
    }

    /** Called when mouse moves out of a component's region */
    public void mouseExited(MouseEvent e)
    {
      System.out.println(e);
    }

    /** Called when the mouse moves within a component's region */
    public void mouseMoved(MouseEvent e)
    {
      System.out.println(e);
    }

    /** Called when the mouse moves within a component's region while a button is down */
    public void mouseDragged(MouseEvent e)
    {
      System.out.println(e);
    }
  }

  public void center()
  {
    Dimension screenSize = getToolkit().getScreenSize();
    Dimension frameSize = getSize();
    Point location = new Point((screenSize.width - frameSize.width) / 2,
      (screenSize.height - frameSize.height) / 2);
    setLocation(location);
  }

  public static void main(String[] args) throws Exception
  {
    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
    JFrame.setDefaultLookAndFeelDecorated(true);
    
    MenuFrame f = new MenuFrame();
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(new Dimension(400, 400));
    f.center();
    f.setVisible(true);
  }
}