import java.applet.*;
import java.lang.Boolean;
import java.util.*;
import java.util.StringTokenizer;
import java.lang.String;
import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.event.*;
import javax.sound.midi.*;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Sequencer;
import javax.sound.midi.Soundbank;
import java.io.*;
import java.net.MalformedURLException;
import java.net.URL;

public class MidiChor08 extends JApplet implements ActionListener,ItemListener,/*AdjustmentListener,*/ChangeListener {
    Font font = new Font("Helvetica",0,12);
    Font fontTitre = new Font("Helvetica",1,16);
    Font fontSign = new Font("Helvetica",0,10);
    Font f;
    FlowLayout fl = null;  //pas de protocole
    JComboBox	choixFichierMidi;
    JButton	joue;
    JButton	arret;
    JButton	pause;
    JButton	charger;
    JButton	max;
    JButton	min;

    JLabel tempoVal;
    JLabel tempoAff;
    JSliderGradue	scr3,scr3VolSop,scr3VolAlt,scr3VolTen,scr3VolBas,scr3VolX,scr3VolY;
    GridBagLayout  containerGridBag;
    Container panel;
    Sequencer player;
    Sequence  seqChant;
    int sel=4,nbst,volSop=50,volAlt=50,volTen=50,volBas=50,volX=50,volY=50;
    int tempo=60;
    String tampon,toto,tata,volS,soundBankString;
    StringTokenizer st1;
    StringTokenizer st2;
    String[] midiFile = new String[20];
    String[] debutFich= new String[20];
    String[] finFich = new String[20];
    String[] termFich = new String[20];
    URL url;
    URL urlBank;
    
    File fichier,bank;
    float mpq;
    Synthesizer synthesizer;
    MidiChannel channels[];
    public static final int VOLUME_CONTROLLER=7;
    Color couleurFond = new Color(224,189,158);
    Color couleur2 = new Color(255,204,51);
    boolean visible[] = new boolean[5] ;
    int nombreCanal,compteur;
    JLabel vols,vola,volt,volb,volx,voly,s,a,t,b,x,y,tempoNum;
    Soundbank soundbank=null;
    Receiver receiver;
    ShortMessage volMsg;
    
    public void init()  {
        setBackground(couleurFond);
        compteur=0;
        //chargeBank();
        for (int i = 1; i < 7; i++) {
            String inFile = getParameter("file" + i);// penser a messagettre obligatoirement en 1 les 4 voix, en 2 la voix en entiere , puis mesure
            if (inFile != null) 
                {
                compteur=compteur+1;
                midiFile[i-1] = inFile;
                StringTokenizer st1 = new StringTokenizer(midiFile[i-1], ".");//renvoie le nomFich du fichierer sans l'extension mid
                    tampon=st1.nextToken();
                    
                    StringTokenizer st2 = new StringTokenizer(tampon, "/");//
                    debutFich[i-1] = st2.nextToken().trim();//.trimm() enlve less blancs
                    finFich[i-1] = st2.nextToken();
                termFich[i-1]=st2.nextToken();
                }
           
            }
       
        containerGridBag = new GridBagLayout ();
        panel = getContentPane();
            // Creation d'un GridBagLayout
        GridBagConstraints constraints = new GridBagConstraints ();
            panel.setLayout (containerGridBag);
            panel.setBackground(couleurFond);
        // Creation des composants et ajout au container
        JLabel titre = new JLabel("Ecouter un Fichier MIDI");
        titre.setFont(fontTitre);
        constraints.gridx=0;
        constraints.gridy=0;
        constraints.gridwidth =9;
        constraints.insets     = new Insets (0, 0, 0, 0);
        constraints.anchor  = GridBagConstraints.CENTER;
        constraints.fill = GridBagConstraints.RELATIVE;
        containerGridBag.setConstraints (titre, constraints);
        
    
    JLabel niveauMax = new JLabel("tous les niveaux au maximum :  ");
        setFont(font);
        constraints.gridx=5;
        constraints.gridy=1;
        constraints.gridwidth=4;
        
        constraints.anchor  = GridBagConstraints.EAST;
        constraints.insets     = new Insets (0, 0, 0, 0);
        containerGridBag.setConstraints (niveauMax, constraints);
        
    max = new JButton("Max");
        max.addActionListener(this);
        constraints.insets     = new Insets (0, 0, 0, 0);
        constraints.gridx=9;
        constraints.gridy=1;
        constraints.gridwidth=1;
        constraints.anchor  = GridBagConstraints.WEST;
        panel.add (max);
        containerGridBag.setConstraints (max, constraints);
    
    JLabel choisir  = new JLabel("Choisissez : ");
        panel.add(choisir);
        constraints.gridx=0;
        constraints.gridy=2;
        constraints.gridwidth=2;
        constraints.insets     = new Insets (4, 2, 2, 2);
        containerGridBag.setConstraints (choisir, constraints);
        
    
        
    constraints.gridwidth=1;
    constraints.gridy=2;
    JLabel s  = new JLabel("S");
        panel.add(s);
        s.setBackground(Color.green);
        constraints.weightx=0.1;
        constraints.gridx=4;
        constraints.gridy=2;
        constraints.gridwidth=1;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (s, constraints);
     
    JLabel a  = new JLabel("A");
        panel.add(a);
        constraints.weightx=0.1;
        constraints.gridx=5;
        constraints.gridy=2;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (a, constraints);
     
    JLabel t  = new JLabel("T");
        panel.add(t);
        constraints.weightx=0.1;
        constraints.gridx=6;
        constraints.gridy=2;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (t, constraints);
     
    JLabel b  = new JLabel("B");
        panel.add(b);
        constraints.weightx=0.1;
        constraints.gridx=7;
        constraints.gridy=2;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (b, constraints);
        
    JLabel x  = new JLabel("X");
        panel.add(x);
        constraints.weightx=0.1;
        constraints.gridx=8;
        constraints.gridy=2;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (x, constraints);
        
    JLabel y  = new JLabel("Y");
        constraints.gridwidth  = GridBagConstraints.REMAINDER;//le dernier sur la ligne
        panel.add(y);
        constraints.weightx=0.1;
        constraints.gridx=9;
        constraints.gridy=2;
        constraints.fill = GridBagConstraints.RELATIVE;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (y, constraints);
    

    choixFichierMidi = new JComboBox();
        choixFichierMidi.addItemListener(this);
        choixFichierMidi.addItem("Choix du fichier");
        for (int i = 0; i < compteur; i++) {
            choixFichierMidi.addItem(termFich[i]);
        }
        constraints.gridx=0;
        constraints.gridy=3;
        constraints.gridwidth =2;
        constraints.insets     = new Insets (4, 2, 2, 4);
        panel.add (choixFichierMidi);
        containerGridBag.setConstraints (choixFichierMidi, constraints);
  
  
    charger = new JButton ("Charger");
        charger.addActionListener(this);
        constraints.gridx=2;
        constraints.gridy=3;
        constraints.insets     = new Insets (4, 2, 2,4);
        panel.add (charger);
        containerGridBag.setConstraints (charger, constraints);
     
    vols  = new JLabel();
        vols.setText(""+volSop);
        panel.add(vols);
        constraints.gridx=4;
        constraints.gridy=3;
        constraints.gridwidth =1;
        constraints.weightx=1;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (vols, constraints);
    
    vola  = new JLabel(""+volAlt);
        panel.add(vola);
        constraints.gridx=5;
        constraints.gridy=3;
        constraints.weightx=1;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (vola, constraints);
     
    volt  = new JLabel(""+volTen);
        panel.add(volt);
        constraints.gridx=6;
        constraints.gridy=3;
        constraints.weightx=1;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (volt, constraints);
     
    volb  = new JLabel(""+volBas);
        panel.add(volb);
        constraints.gridx=7;
        constraints.gridy=3;
        constraints.weightx=1;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (volb, constraints);
        
    volx  = new JLabel(""+volX);
        panel.add(volx);
        constraints.gridx=8;
        constraints.gridy=3;
        constraints.weightx=1;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (volx, constraints);
    
    voly  = new JLabel(""+volY);
        panel.add(voly);
        constraints.gridx=9;
        constraints.gridy=3;
        constraints.weightx=1;
        constraints.insets     = new Insets (2, 5, 5, 2);
        containerGridBag.setConstraints (voly, constraints);
        
    joue = new JButton ("Jouer");
        joue.addActionListener(this);
        constraints.gridx=0;
        constraints.gridy=4;
        constraints.insets     = new Insets (55, 2, 55, 2);
        panel.add (joue);
        containerGridBag.setConstraints (joue, constraints);

    arret = new JButton ("Arreter");
        arret.addActionListener(this);
        constraints.gridx=1;
        constraints.gridy=4;
        constraints.insets     = new Insets (55, 2, 55, 2);
        panel.add (arret);
        containerGridBag.setConstraints (arret, constraints);
    
    pause = new JButton ("Pause");
        pause.addActionListener(this);
        constraints.gridx=2;
        constraints.gridy=4;
        constraints.insets     = new Insets (55, 2, 55, 2);
        panel.add (pause);
        containerGridBag.setConstraints (pause, constraints);
    
    //ascenceur pourur less volumes
    
    scr3VolSop = new JSliderGradue (JSlider.VERTICAL,0,127,volSop);
    scr3VolSop.addChangeListener (this);
    scr3VolSop.setPaintTicks(true);
    scr3VolSop.setPaintLabels(true);
    scr3VolSop.setMajorTickSpacing(20);
    scr3VolSop.setMinorTickSpacing(5);
    
    constraints.gridx=4;
    constraints.gridy=4;
    constraints.fill = GridBagConstraints.VERTICAL;
    constraints.insets     = new Insets (2, 5, 5, 2);
    panel.add (scr3VolSop);
    containerGridBag.setConstraints (scr3VolSop, constraints);
    
    scr3VolAlt = new JSliderGradue (JSlider.VERTICAL,0,127,volAlt);
    scr3VolAlt.addChangeListener (this);   
    constraints.gridx=5;
    constraints.gridy=4;
    constraints.insets     = new Insets (2, 5, 5, 2);
    panel.add (scr3VolAlt);
    containerGridBag.setConstraints (scr3VolAlt, constraints);
    
    scr3VolTen = new JSliderGradue (JSlider.VERTICAL,0,127,volTen);
    scr3VolTen.addChangeListener (this);    
    constraints.gridx=6;
    constraints.gridy=4;
    constraints.insets     = new Insets (2, 5, 5, 2);
    panel.add (scr3VolTen);
    containerGridBag.setConstraints (scr3VolTen, constraints);
    
    scr3VolBas = new JSliderGradue (JSlider.VERTICAL,0,127,volBas);
    scr3VolBas.addChangeListener (this);    
    constraints.gridx=7;
    constraints.gridy=4;
    constraints.insets     = new Insets (2, 5, 5, 2);
    panel.add (scr3VolBas);
    containerGridBag.setConstraints (scr3VolBas, constraints);
    
    scr3VolX = new JSliderGradue (JSlider.VERTICAL,0,127,volX);
    scr3VolX.addChangeListener (this);   
    constraints.gridx=8;
    constraints.gridy=4;
    constraints.insets     = new Insets (2, 5, 5, 2);
    panel.add (scr3VolX);
    containerGridBag.setConstraints (scr3VolX, constraints);
    
    scr3VolY = new JSliderGradue (JSlider.VERTICAL,0,127,volY);
    scr3VolY.addChangeListener (this);    
    constraints.gridx=9;
    constraints.gridy=4;
    constraints.insets     = new Insets (2, 5, 5, 2);
    panel.add (scr3VolY);
    containerGridBag.setConstraints (scr3VolY, constraints);
    
    JLabel tempoAff  = new JLabel("TEMPO : ");
        panel.add(tempoAff);
        constraints.gridx=1;
        constraints.gridy=5;
        constraints.insets     = new Insets (0, 0, 0, 0);
        containerGridBag.setConstraints (tempoAff, constraints);
        
    tempoNum  = new JLabel();
        tempoNum.setText(""+tempo);
        constraints.gridx=2;
        constraints.gridy=5;
        panel.add(tempoNum);
        constraints.insets     = new Insets (0, 0, 0, 0);
        containerGridBag.setConstraints (tempoNum, constraints);
    
    JLabel niveauMin = new JLabel("tous les niveaux au minimum :  ");
        panel.add(niveauMin);
        constraints.gridx=5;
        constraints.gridy=5;
        constraints.gridwidth =4;
        constraints.anchor  = GridBagConstraints.EAST;
        constraints.insets     = new Insets (0, 0, 0, 0);
        containerGridBag.setConstraints (niveauMin, constraints);
    
    min = new JButton("min");
        min.addActionListener(this);
        constraints.gridx=9;
        constraints.gridy=5;
        constraints.gridwidth =2;
        constraints.anchor  = GridBagConstraints.WEST;
        constraints.insets     = new Insets (0, 0, 0, 0);
        panel.add (min);
        containerGridBag.setConstraints (min, constraints);
    
     scr3 = new JSliderGradue (JSlider.HORIZONTAL,0 ,255 ,tempo);
        scr3.addChangeListener(this);
        constraints.gridx=0;
        constraints.gridy=7;
        constraints.gridwidth =5;
        constraints.fill = GridBagConstraints.HORIZONTAL;
        constraints.insets     = new Insets (4, 4, 4, 4);
        panel.add (scr3);
        containerGridBag.setConstraints (scr3, constraints);
        
    JLabel signature = new JLabel("D. MALIK   V 0.8b");
        signature.setFont(fontSign);
        constraints.gridx=9;
        constraints.gridy=8;
        constraints.gridwidth =4;
        constraints.insets     = new Insets (0, 0, 0, 0);
        containerGridBag.setConstraints (signature, constraints);
        
    // Mise en forme des composants dans le container
    
    panel.add(titre);
    panel.add(signature);
    panel.add(niveauMax);
    validate();      
    }
    public class JSliderGradue extends JSlider {
        Color monBleu = new Color(226,176,133);
        public JSliderGradue(int orientation, int min, int max,int value) {
            super(orientation, min, max, value);
            setBackground(monBleu);
            setForeground(Color.black);
          
            this.setPaintTicks(true);
       
            this.setMajorTickSpacing(20);
      
            this.setMinorTickSpacing(5);
      
            this.setPaintLabels(true);
        }
    }
    public void chargeBank() {
        try {
             if (soundbank == null) {
                
                 //FilePermission perm = new FilePermission("*.*","read");
            String soundBankString = getParameter("bank");
            System.out.println(soundBankString);
            urlBank = new URL(getCodeBase(),soundBankString);
            System.out.println(urlBank);
            soundbank = MidiSystem.getSoundbank(urlBank);
            synthesizer.loadAllInstruments(soundbank);
            if (soundbank == null) {
                System.out.println("soundbank is null");}
                
            }
        }
        catch (MalformedURLException e) {
            System.out.println("Erreur URL ! soundbank");
        }
        catch (IOException e) {
            System.out.println("Erreur d'Entree Sortie soundbank");
        } 
        catch (InvalidMidiDataException e) {
            System.out.println("Invalid Midi data! soundbank");
        }
    }

    public void charge() {
        try {              
            player = MidiSystem.getSequencer();
            //player.addMetaEventListener(this);
            if (!(player instanceof Synthesizer)) {
                synthesizer = MidiSystem.getSynthesizer();
            }
            else {
                synthesizer = (Synthesizer) player;
            }        
            //synthesizer.open();
        //Receiver receiver = synthesizer.getReceiver();
            soundbank = synthesizer.getDefaultSoundbank();
            if (soundbank == null) {
                System.out.println("soundbank is null");
                //String soundBankString = getParameter("bank");
                String soundBankString="soundbank-min.gm";
                System.out.println("nom du fichier = "+soundBankString);
                URL urlBank = new URL(getCodeBase() ,soundBankString);
                System.out.println("nom de l'URL = "+urlBank);
                Soundbank s = MidiSystem.getSoundbank(urlBank);
                System.out.println("soundbank charge !");
                synthesizer.loadAllInstruments(s); 
            }
            else {
                System.out.println("Y'A quelque chose !");
            }
            File fichier=new File(midiFile[sel-1]);
            url= new URL(getCodeBase().toString()+midiFile[sel-1]);
            seqChant = MidiSystem.getSequence(url); 
            player.open();
            player.setSequence(seqChant);
            mpq=player.getTempoInBPM();
            channels = synthesizer.getChannels();
            tempo=(int)mpq;
            scr3.setValue(tempo);
            tempoNum.setText(""+tempo);      
            scr3VolSop.setValue(prendVolume(0));
            scr3VolAlt.setValue(prendVolume(1));
            scr3VolTen.setValue(prendVolume(2));
            scr3VolBas.setValue(prendVolume(3));
            scr3VolX.setValue(prendVolume(4));
            scr3VolY.setValue(prendVolume(5));
            scr3VolSop.setEnabled(true);
        scr3VolAlt.setEnabled(false);
           // repaint();
        // gainSlider.setEnabled(true);  signature on veut quelqueu'il soit en tata de marche
            int nombreCanal = channels.length;
             /*for(int i = 0; i < nombreCanal; i++) {
                visible[i]=(channels[i] != null )? true : false;
             }//fin de for
             scr3VolSop.setVisible(visible[0]) ; 
             scr3VolAlt.setVisible(visible[1]) ; 
             scr3VolTen.setVisible(visible[2]) ; 
             scr3VolBas.setVisible(visible[3]) ; 
             scr3VolX.setVisible(visible[4]) ; 
             scr3VolY.setVisible(visible[5]);
             vols.setVisible(visible[0]) ; 
             vola.setVisible(visible[1]) ; 
             volt.setVisible(visible[2]) ; 
             volb.setVisible(visible[3]) ; 
             volx.setVisible(visible[4]) ; 
             voly.setVisible(visible[5]);
             s.setVisible(visible[0]) ; 
             a.setVisible(visible[1]) ; 
             t.setVisible(visible[2]) ; 
             b.setVisible(visible[3]) ; 
             x.setVisible(visible[4]) ; 
             y.setVisible(visible[5]);*/
            
         }
    
        catch (MalformedURLException e) {
            System.out.println("Erreur URL ! dans charge()");
        } catch (IOException e) {
            System.out.println("Erreur d'Entree Sortie dans charge()");
        } catch (MidiUnavailableException e) {
            System.out.println("Fichier midi non valide dans charge()");
        } catch (InvalidMidiDataException e) {
            System.out.println("Invalid Mididididi data! dans charge()");
        }
      
    }
        
    public void joue() {
           { player.start();
           scr3VolSop.setValue(prendVolume(0));
            scr3VolAlt.setValue(prendVolume(1));
            scr3VolTen.setValue(prendVolume(2));
            scr3VolBas.setValue(prendVolume(3));
            scr3VolX.setValue(prendVolume(4));
            scr3VolY.setValue(prendVolume(5));
            scr3VolSop.setEnabled(true);
        scr3VolAlt.setEnabled(false);}
            //tempo();
    }
    
    public void arret() {
        player.stop();
        player.close();
    }

    public void tempo() {
        tempo=scr3.getValue();         
        tempoNum.setText(""+tempo);  
        player.setTempoInBPM(tempo);
    }

    public void changeVolume(int voix,int niveau) {
        channels[voix].controlChange(7, niveau);
        int vol=(int)channels[voix].getController(7);
    System.out.println("canal N"+voix+"lecture du volumes dans midiFile = "+vol);
   /* try {
        ShortMessage volMsg = new ShortMessage();
        volMsg.setMessage(ShortMessage.CONTROL_CHANGE, voix,VOLUME_CONTROLLER, niveau);
        receiver.send(volMsg, -1);
    }
    catch (InvalidMidiDataException e) {
            System.out.println("Invalid Mididididi data!");
        }*/
    }

    public int prendVolume(int voix) {
        int vol=(int)channels[voix].getController(7);
        return(vol);
    }


    public void max() {
        for (int i=0 ; i < nombreCanal ; i++) {
            changeVolume(i,127);
        }
        scr3VolSop.setValue(127) ; 
        scr3VolAlt.setValue(127) ; 
        scr3VolTen.setValue(127) ; 
        scr3VolBas.setValue(127) ; 
        scr3VolX.setValue(127) ; 
        scr3VolY.setValue(127);
        vols.setText("127") ; 
        vola.setText("127") ;
        volt.setText("127") ; 
        volb.setText("127") ; 
        volx.setText("127") ; 
        voly.setText("127");
    }

    public void min() {
        for (int i=0 ; i < nombreCanal ; i++) {
            changeVolume(i,0);
        }
        scr3VolSop.setValue(0) ;
        scr3VolAlt.setValue(0) ;
        scr3VolTen.setValue(0) ;
        scr3VolBas.setValue(0) ;
        scr3VolX.setValue(0) ;
        scr3VolY.setValue(0);
        vols.setText("0") ;
        vola.setText("0") ; 
        volt.setText("0") ; 
        volb.setText("0") ; 
        volx.setText("0") ; 
        voly.setText("0");
    }

    /*class SliderListener implements ChangeListener {
        public void stateChanged(ChangeEvent evt) {
            JSlider source = (JSlider)evt.getSource();
            volSop = (int)source.getValue();
            showStatus(Integer.toString(volSop));
        }
    }*/

    public void stateChanged(ChangeEvent e) {
        JSlider source = (JSlider)e.getSource();
        if (!source.getValueIsAdjusting()) {
           tempo();
            vols.setText(""+scr3VolSop.getValue ());
            volSop=scr3VolSop.getValue ();
        System.out.println("le volume des sop est d'aprs le curseur="+volSop);
            changeVolume(0,volSop);
        System.out.println("lecture du volumes danss midiFile = "+prendVolume(0));
        
            vola.setText(""+scr3VolAlt.getValue ());
            volAlt=scr3VolAlt.getValue ();
            changeVolume(1,volAlt);
        
            volt.setText(""+scr3VolTen.getValue ());
            volTen=scr3VolTen.getValue ();
            changeVolume(2,volTen);
        
            volb.setText(""+scr3VolBas.getValue ());
            volBas=scr3VolBas.getValue ();
            changeVolume(3,volBas);
        
            volx.setText(""+scr3VolX.getValue ());
            volX=scr3VolX.getValue ();
            changeVolume(4,volX);
        
            voly.setText(""+scr3VolY.getValue ());
            volY=scr3VolY.getValue ();
            changeVolume(5,volY);
        
            repaint();
        }
    }

  
    public void itemStateChanged(ItemEvent evt) {	
        sel=choixFichierMidi.getSelectedIndex();
    }

    public void actionPerformed(ActionEvent evt) {        
        if (evt.getSource()==arret)
            arret();
        else if (evt.getSource()==joue)
            joue();
        else if (evt.getSource()==charger)
            charge();
             
        else if (evt.getSource()==max)
            max();
        else if (evt.getSource()==min)
            min();
            repaint();
    }
}