/*
 * @(#)Graph.java	1.9 99/08/04
 * MODIFS PYL juillet Aout 2005!!!!!!!!!!
 *
 * This software is not designed or 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 guiChalOmega.java Kul.java ;java guiChalOmega  
//javac guiChalOmega.java Kul.java; open index.html  

import java.util.*;
import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;

 
class GraphPanel extends Panel
    implements Runnable, MouseListener {
    guiChalOmega graph;
	Kul kkul=new Kul();
    public double dt0;
    public double getdt0(){
    return dt0;}

	Thread relaxer;
 
	
	public GraphPanel (){
	}

    GraphPanel(guiChalOmega graph) {
	this.graph = graph;
	addMouseListener(this);
    }

    void initout() {
	razz();
	dt0=0.0003;
    System.out.println("init t=" + kkul.t +" ....................... dt     =" +dt0);
	}
	
	void razz(){
	 kkul=null;
	 kkul=new Kul();
	 kkul.t=0;
	 kkul.n=50;
	 kkul.dx=.02;
	 kkul.omega=0;
	 kkul.prems();
	 kkul.cl00();  
	 System.out.println("Init" );
	}
	
 
	 
	 	public void sauveparam()
    {   String texte = "#OK a poursuivre!";  
	    System.out.println("sauf" );
        try{
            FileOutputStream filename= new FileOutputStream("xy.dat");
            PrintStream ffile = new PrintStream(filename);
			for (int i = 0; i <= kkul.n; i++) {
                 ffile.println(i*kkul.dx + " " + kkul.T[i]);}
        }
        catch (IOException Ex)
        {System.out.println(Ex.getMessage());}
    } 

    public void run() {
        Thread me = Thread.currentThread();
	while (relaxer == me) {
	    relax();
	    
	    try {
		Thread.sleep(200);
	    } catch (InterruptedException e) {
		break;
	    }
	}
    }

    synchronized void relax() {
	repaint();
    }

    
    Image offscreen;
    Dimension offscreensize;
    Graphics offgraphics;
 

    public synchronized void update(Graphics g) {
	    
      Dimension d = getSize();
      if ((offscreen == null) || (d.width != offscreensize.width) || (d.height != offscreensize.height)) {
	    offscreen = createImage(d.width, d.height);
	    offscreensize = d;
	    if (offgraphics != null) {
	        offgraphics.dispose();
	    }
	    offgraphics = offscreen.getGraphics();
	    offgraphics.setFont(getFont());
	}

	offgraphics.setColor(getBackground());
	offgraphics.fillRect(0, 0, d.width, d.height);
	System.out.println("t=" + kkul.t);
	offgraphics.setColor(Color.black) ;
	offgraphics.drawLine(d.width/4,  d.height*8/10,(3*d.width)/4 ,  d.height*8/10);
	offgraphics.drawLine(d.width/4,  d.height*8/10,d.width/4 , d.height*3/10);
	offgraphics.drawLine((3*d.width)/4,  d.height*8/10,(3*d.width)/4 , d.height*3/10);
	offgraphics.drawLine(d.width/4,  d.height*3/10,(3*d.width)/4, d.height*3/10);
	offgraphics.drawString("x " ,  4*d.width/5, d.height*8/10);
	offgraphics.drawString("T(x,t="+(((int)(kkul.t*1000))/1000.)+")",  d.width/2, d.height/8);	
	offgraphics.setColor(Color.red) ;
	for (int i = 1 ; i <= kkul.n ; i++) {
	    offgraphics.drawLine(d.width/4+(i-1)*d.width/kkul.n/2, d.height*8/10-(int)(d.height*kkul.T[i-1]/2),
		                     d.width/4+   i* d.width/kkul.n/2, d.height*8/10-(int)(d.height*kkul.T[ i ]/2));
	}
	
	g.drawImage(offscreen, 0, 0, null);
    }

    //1.1 event handling
    public void mouseClicked(MouseEvent e) {}
    public void mousePressed(MouseEvent e) {}
    public void mouseReleased(MouseEvent e){}
    public void mouseEntered(MouseEvent e) {}
    public void mouseExited(MouseEvent e)  {}
    public void mouseDragged(MouseEvent e) {}
    public void mouseMoved(MouseEvent e)   {}
	
    public void start() {
	relaxer = new Thread(this);
	relaxer.start();
	}

    public void stop() {
	relaxer = null;
    }

}
 
public class guiChalOmega extends Applet implements ActionListener, ItemListener {
    
    GraphPanel panel;
    Panel controlPanel;
    
	Button raz = new Button("RAZ");
    Button calcul = new Button("Calcul");
    Button pause = new Button("Pause");
	
    JLabel lab = new JLabel("val =     ", JLabel.CENTER) ; 
	JTextField saizie= new JTextField ("0.000100"); 
	Choice choix = new Choice();
	JLabel labo = new JLabel("omega =  ", JLabel.CENTER) ; 
	JTextField saizio= new JTextField ("0.000");

    public void init() {
		
	setLayout(new BorderLayout());

	panel = new GraphPanel(this);
	add("Center", panel);
	controlPanel = new Panel();
	add("South", controlPanel);
   
    controlPanel.add(lab) ;   lab.setText("dt=") ;
	controlPanel.add(saizie);
	controlPanel.add(labo) ;   labo.setText("omega=") ;
    controlPanel.add(saizio);
	controlPanel.add(raz);    raz.addActionListener(this);
	controlPanel.add(calcul); calcul.addActionListener(this);
	controlPanel.add(pause);  pause.addActionListener(this);
	controlPanel.add(new Label("Cond. lim. :", Label.RIGHT));       
        choix.addItemListener(this);
        controlPanel.add(choix);

        choix.addItem("T(0)=0, T(1)=0           " );
        choix.addItem("T(0)=0, T(1)=1           " ); 
		choix.addItem("T(0)=1, T(1)=0           " ); 
        choix.addItem("T(0)=1, T(1)=1           " );
        choix.addItem("T(0)=sin(omega t), T(1)=0" );
        choix.addItem("T(0)=0, T'(1)=q          " );
		
	panel.initout();
	}

    public void destroy() {
        remove(panel);
        remove(controlPanel);
    }

    public void start() {
	razz(); 
	panel.start();
	}
	
	public double getdt0(){
	return panel.getdt0();
	}
	

    public void stop() {
	panel.stop();
    }
	
	
	public void razz() {
	 panel.razz();
    }

    public void actionPerformed(ActionEvent e) {
		Object src = e.getSource();
	if (src == raz) { 
	    razz(); 
    	System.out.println("RAZ, t=" + panel.kkul.t);
	    return;
	}
	
	if (src == calcul) { 
		String ch=saizie.getText();
		double z =Double.parseDouble(ch); 
//		lu.setText(ch);
		System.out.println(ch);
	    System.out.println("calcul, t=" + panel.kkul.t + "dt =" + z );
		panel.kkul.dt=z;
  		ch=saizio.getText();
		z =Double.parseDouble(ch); 
	    System.out.println("calcul, omega=" +  z );
		panel.kkul.omega=z; 
		if(panel.kkul.cours==0){
		panel.kkul.start(); panel.kkul.cours=1;}
		
		return;
	}

	if (src == pause) {
		System.out.println("stop, t=" + panel.kkul.t);
		panel.kkul.dt=0;
		panel.sauveparam();
	    	}

    }

 

    public void itemStateChanged(ItemEvent e) {
	//Object src = e.getSource();
	//boolean on = e.getStateChange() == ItemEvent.SELECTED;
 
	int ined=choix.getSelectedIndex(); 
	if (ined==0){System.out.println("arx CL0\n");panel.kkul.cl00();}
	if (ined==1){System.out.println("arx CL1\n");panel.kkul.cl01();}
	if (ined==2){System.out.println("arx CL2\n");panel.kkul.cl10();}
	if (ined==3){System.out.println("arx CL2\n");panel.kkul.cl11();}
	if (ined==4){System.out.println("arx CL3\n");panel.kkul.clt0();}
	
	/*if (src == truc) panel.truc = on;
	else if (src == machin) panel.machin = on;
	
	 if(panel.machin){panel.kkul.T1=1;  }else{panel.kkul.T1=0; };
	 if(panel.truc)  {panel.kkul.T0=1;  }else{panel.kkul.T0=0; };*/
	    }

   
   
	
///////////////////////////////////////////////////////////
	public static void main(String args[]) {
	Frame f = new Frame("guiChalOmega");
	guiChalOmega guiChalOmega = new guiChalOmega();
	//System.out.println(args[]);

	guiChalOmega.init();
	guiChalOmega.start();
	
	f.add("Center", guiChalOmega);
	f.setSize(800, 400);
	f.setLocation(200, 200);
	f.show();
    }

    public String getAppletInfo() {
        return "Calcul interactif par PYL. \n 'java guiGraph' \nou applet.";
    }

}