import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import javax.swing.*;


// PYL Octobre 05
//http://www.eteks.com/coursjava/applet10.html 
//http://javaboutique.internet.com/Xylophone/source.html

//javac Tubeouvert.java;java Tubeouvert

  class tubeCanevas extends Canvas implements MouseListener {
      public double L=245.6;
	  public static int mode=1; 
	  public boolean ouvert=true;
	  boolean joue=true;
		
		
		//actions liees a la souris
        tubeCanevas() {
                addMouseListener(this); 
        }
        public void mousePressed(MouseEvent e) {
		L=1.*(e.getX());
		mode=1;
		joue=false;
		if((e.getY())<getBounds().height/2)mode=2;
		System.out.println("pressed "+e.getX()+" "+e.getY()+" " + L+ "mod="+mode);
         repaint(); 
        }
		
        public void mouseReleased(MouseEvent e) {
		System.out.println("released "+e.getX()+" "+e.getY()+ " " + joue);
        }
		
        public void mouseEntered(MouseEvent e) {
                System.out.println("entered "+e.getX()+" "+e.getY());
        }
		
        public void mouseExited(MouseEvent e) {
                System.out.println("exited "+e.getX()+" "+e.getY());
        }
		
       public void mouseClicked(MouseEvent e) {
		L=1.*(e.getX());
		mode=1;
		joue=true;
		if((e.getY())<getBounds().height/2)mode=2;
		System.out.println("clicked "+e.getX()+" "+e.getY()+" " + L+ "mod="+mode);
		 repaint(); 		
        }

		
  public void dro(Graphics g, double x1,double y1,double x2,double y2){
  int i1,i2,j1,j2;
  int rr,gg,bb; 
  g.setColor(Color.black);
  Rectangle r = getBounds();
  i1 = (int)(r.width*x1);
  i2 = (int)(r.width*x2);
  j1 = (int)(r.height/2 + (r.height)*y1/8.);
  j2 = (int)(r.height/2 + (r.height)*y2/8.); 
  g.drawLine(i1,j1,i2,j2);
}


	public void paint(Graphics g)
	 {
	double x[],pression[];
	Rectangle r = getBounds();
	x =new double[r.width+1];
	pression=new double[r.width+1];
	
	g.setColor(kolor.code(0));	
	g.fillRect(0,0,r.width,r.height);
   
	//trace du tube haut
	g.setColor(Color.black);
	g.drawLine(0, r.height/2-r.height/8-1,(int)L-10,r.height/2-r.height/8-1);
	g.drawLine((int)L+22, r.height/2-r.height/8-1,r.width,r.height/2-r.height/8-1);
	g.drawLine(0, r.height/2-r.height/8-2,(int)L-10,r.height/2-r.height/8-2);
	g.drawLine((int)L+22, r.height/2-r.height/8-2,r.width,r.height/2-r.height/8-2);
 	//trace du tube bas
	g.drawLine(0, r.height/2+r.height/8+2, r.width,r.height/2+r.height/8+2); 
	g.drawLine(0, r.height/2+r.height/8+1, r.width,r.height/2+r.height/8+1);	   
	//echelle en cm
	g.drawLine(0, r.height/2+r.height/4,245,r.height/2+r.height/4);
    //textes
	g.drawString("Cliquer pour produire un son. Fondamental/Harmonique: cliquer en bas/haut. ",r.width/20,r.height /7);
    g.drawString("Tracˇ de la pression max en rouge.          PYL05",r.width/2,7*r.height /8);
	g.drawString("L=19cm         ",r.width/10,6*r.height /7);
	
	for(int i=1;i<=r.width;i++){
	 x[i]=i*1./r.width;
	 if(i<(int)(L)){ // valeurs de p et x
	 pression[i]=Math.abs((Math.sin(mode*3.1415*i/L)));
	 g.setColor(Color.black);
	 dro(g,x[i-1], pression[i-1],x[i], pression[i]);
	 dro(g,x[i-1],-pression[i-1],x[i],-pression[i]); 
	 }else {pression[i]=0;}
	
	//trace en couleur
	g.setColor(kolor.code(pression[i]));	
	g.drawLine(i,r.height/2+r.height/8,i,r.height/2-r.height/8);}
    
	//jeu du son
	if(joue){
	g.setColor(kolor.code(1));	
	tson.frequence=200*(mode*3.1415/L)*344;
	g.drawString("frˇquence="+(int)tson.frequence+" Hz, Long. tube="+ (int)(19*880/tson.frequence*mode)+" cm",r.width/5,2*r.height /7);
	tson.joue();
	joue=false;}
				
 }	
   
}


public class Tubeouvert extends Applet {
	tubeCanevasControls controls;   // The controls 
    tubeCanevas canvas;             // The drawing area
	
    public void init() {
	setLayout(new BorderLayout());
	canvas = new tubeCanevas();
	add("Center", canvas); 
	add("South", controls = new tubeCanevasControls(canvas));
    }
   
    public void destroy() {
        remove(controls);
        remove(canvas);
    }

    public void start() {
	  controls.setEnabled(true);
    }

    public void stop() {
	  controls.setEnabled(false);
    }

    public void processEvent(AWTEvent e) {
        if (e.getID() == Event.WINDOW_DESTROY) {
            System.exit(0);
        }
    }

        public static void main(String args[]) throws Exception {
               
                JFrame fr = new JFrame("Flute Java PYL");
				
				Tubeouvert tube = new Tubeouvert();
				tube.init();
				tube.start();
                fr.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE ) ;
                fr.setSize (800,200) ;

                fr.getContentPane().add(tube);
                fr.setVisible(true);
				 
         }
		 
		 
	 
}		 
		 
//////////////////////////////////////////


class tubeCanevasControls extends Panel
                  implements ActionListener {
    TextField h;
    TextField k;
	TextField L;
	TextField a;
    tubeCanevas canvas;

    public tubeCanevasControls(tubeCanevas canvas) {
	Button b1 = null;
	Button b2 = null;

	this.canvas = canvas; 
//	add(h = new TextField(Double.toString(10000), 8));
	add(k = new TextField("non implˇmentˇ", 12));
/*	add(L = new TextField("1", 8));
	add(a = new TextField("0.01", 8));
*/
	b2 = new Button("Ouvert Fermˇ");
	b2.addActionListener(this);
	add(b2);
	b1 = new Button("Ouvert Ouvert");
	b1.addActionListener(this);
	add(b1);
    }

    public void actionPerformed(ActionEvent ev) {
	String label = ev.getActionCommand();
    System.out.println(ev.getActionCommand()+" a implementer");
	if(ev.getActionCommand()=="Ouvert Fermˇ")canvas.ouvert=false;
	if(ev.getActionCommand()=="Ouvert Ouvert")canvas.ouvert=true;
	
/*	canvas.redraw(Double.parseDouble(h.getText().trim()),
	              Double.parseDouble(k.getText().trim()),
				  Double.parseDouble(L.getText().trim()),
	  		      Double.parseDouble(a.getText().trim()));*/
    }		 
		  
}