import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import javax.sound.midi.MidiChannel;
import javax.sound.midi.MidiSystem;
import javax.sound.midi.Synthesizer;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;


@SuppressWarnings("serial")
public class kolmkola2 extends JApplet implements MouseListener{
	Synthesizer synt;
	MidiChannel kanal;
	int valjus=65;
	JButton nupp1 = new JButton();
	JButton nupp2 = new JButton();
	JButton nupp3 = new JButton();
	JButton nupp4 = new JButton();
	JButton nupp5 = new JButton();
	JButton nupp12 = new JButton();
	JButton nupp22 = new JButton();
	JButton nupp32 = new JButton();
	JButton nupp42 = new JButton();
	JLabel label = new JLabel();
	
	public kolmkola2(){
		try{
			synt=MidiSystem.getSynthesizer();
			synt.open();
			kanal=synt.getChannels()[0];
			kanal.programChange(1,6);
			getContentPane().setLayout(null);
			
			nupp5 = new Joonenupp(77);
			nupp5.setBounds(20, 20, 100, 10);
			getContentPane().add(nupp5);
			
			nupp4 = new Joonenupp(74);
			nupp4.setBounds(20, 40, 100, 10);
			getContentPane().add(nupp4);
			
			nupp3 = new Joonenupp(71);
			nupp3.setBounds(20, 60, 100, 10);
			getContentPane().add(nupp3);
			
			nupp2 = new Joonenupp(67);
			nupp2.setBounds(20, 80, 100, 10);
			getContentPane().add(nupp2);
			
			nupp1 = new Joonenupp(64);
			nupp1.setBounds(20, 100, 100, 10);
			getContentPane().add(nupp1);
			
			nupp12 = new vahenupp(65);
			nupp12.setBounds(20, 90, 100, 10);
			getContentPane().add(nupp12);
			
			nupp22 = new vahenupp(69);
			nupp22.setBounds(20, 70, 100, 10);
			getContentPane().add(nupp22);
			
			nupp32 = new vahenupp(72);
			nupp32.setBounds(20, 50, 100, 10);
			getContentPane().add(nupp32);
			
			nupp42 = new vahenupp(76);
			nupp42.setBounds(20, 30, 100, 10);
			getContentPane().add(nupp42);
			
			nupp1.addMouseListener(this);
			nupp2.addMouseListener(this);
			nupp3.addMouseListener(this);
			nupp4.addMouseListener(this);
			nupp5.addMouseListener(this);
			
			nupp12.addMouseListener(this);
			nupp22.addMouseListener(this);
			nupp32.addMouseListener(this);
			nupp42.addMouseListener(this);
			label.setBounds(50, 120, 50, 20);
			getContentPane().add(label);
		}
		catch(Exception E){
			E.printStackTrace();
		}
	}

	public static void main(String[] arg) throws Exception{
		JFrame f=new JFrame();
		f.add(new kolmkola2());
		f.setSize(600, 300);
		f.setVisible(true);
	}

	public void mangi(int algnoot){
		kanal.noteOn(algnoot   ,valjus);
		kanal.noteOn(algnoot+4   ,valjus);
		kanal.noteOn(algnoot+7   ,valjus);
	}
	
	public void mouseClicked(MouseEvent e) {}	
	public void mouseEntered(MouseEvent e) {}	
	public void mouseExited(MouseEvent e) {}	
	public void mousePressed(MouseEvent e) {
		Object src = e.getSource();
		if(src==nupp1 || src==nupp2 || src==nupp3 || src==nupp4 || src==nupp5){
			Joonenupp nupp = (Joonenupp)e.getSource();
			mangi(nupp.kysiPohitoon());
			
			label.setText(MuusikaAbi.tahtnimi(nupp.kysiPohitoon())+" "+MuusikaAbi.tahtnimi(nupp.kysiPohitoon()+4)+" "+MuusikaAbi.tahtnimi(nupp.kysiPohitoon()+7));
		}
		if(src==nupp12 || src==nupp22 || src==nupp32 || src==nupp42 ){
			vahenupp nupp = (vahenupp)e.getSource();
			mangi(nupp.kysiPohitoon());
			label.setText(MuusikaAbi.tahtnimi(nupp.kysiPohitoon())+" "+MuusikaAbi.tahtnimi(nupp.kysiPohitoon()+4)+" "+MuusikaAbi.tahtnimi(nupp.kysiPohitoon()+7));
		}
	}	
	public void mouseReleased(MouseEvent e) {
		kanal.allNotesOff();
	}
}