/*
 * MODIFS PYL oct 2005!!!!!!!!!!
 * www.lmm.jussieu.fr/~lagree
 + py@cccr.jussieu.fr
 *
 * This software is  designed and intended for use in on-line control of
 * aircraft, air traffic, aircraft navigation or aircraft communications; or in
 * the design, construction, operation or maintenance of any nuclear facility.
 */
//javac guiguyd1.java  ;java guiguyd1  
//javac guiguyd1.java  ; open index.html  

 
import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
import javax.swing.*;
 
 
class GraphPanel extends Panel  {
    guiguyd1 graph;                                   //
	int x=150,y=10;                                 //position initiale
	 
 	
	public GraphPanel (){
	}

    GraphPanel(guiguyd1 graph) {
	this.graph = graph; 
    }
    
    Image offscreen;                                  //?
    Dimension offscreensize;                          //?
    Graphics offgraphics;                             //?
 

public synchronized void update(Graphics g) {
	    
    Dimension d = getSize(); 
    offscreen = createImage(d.width, d.height);       //?
	offscreensize = d;                                //?
	offgraphics = offscreen.getGraphics();            //?
	  
	offgraphics.setColor(Color.black) ;               //en noir
	offgraphics.fillRect(x, y, 10, 10);               //rectangle noir 

	g.drawImage(offscreen, 0, 0, null);               //affichage

 }
}
 
public class guiguyd1 extends Applet  implements ActionListener {
    
    GraphPanel panel;                          //definition du panneau graphique
    Panel controlPanel;                        //definition du panneau
    
	JButton moins    = new JButton("Moinche"); //definition du Bouton
    JButton plus     = new JButton("Plouche"); //definition du Bouton
 	

    public void init() {                       //initialisation
		
	setLayout(new BorderLayout());             //plusieurs panneaux
	panel = new GraphPanel(this);              //creation  du panneau graphique
	add("Center", panel);                      //position
	
	 
	controlPanel = new Panel();                 //creation  du panneau  
	add("South", controlPanel);                 //position
	controlPanel.add(moins);                    //definition du Bouton
	moins.addActionListener(this);              //surveiller le bouton
	controlPanel.add(plus);                     //definition du Bouton
	plus.addActionListener(this);               //surveiller le bouton
	}

 
 
  

    public void actionPerformed(ActionEvent e) {
		Object src = e.getSource();             //quelle action
	if (src == moins) { 
	     panel.x--;                             //x decremente
		 panel.y++;                             //y augmente
    	 panel.repaint();                       //redessine 
	    return;
	}
	
	if (src == plus) {  
		panel.x++;                              //x augmente
		panel.y++;                              //y augmente
		panel.repaint();                        //redessine 
		return;
	}	 
}

 

///////////////////////////////////////////////////////////
	public static void main(String args[]) {
	JFrame f = new JFrame("guiguy par PYL");
	guiguyd1 guiguyd1 = new guiguyd1();

	guiguyd1.init();                                  
	f.getContentPane().add(guiguyd1);
	f.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE ) ;
	f.setSize(300,300);
	f.setLocation(10, 10);
	f.show();
    }
}