import java.awt.*;
import java.applet.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
public class AppletKod extends Applet implements MouseListener,ActionListener{
    public int lx=0;
    public int ly=0;
    int dairesayisi=0;
    int silinen=0;
    int CIZ=0;
    int SIL=1;
    int MODE=0;
    Button b=new Button("Clear");
    Button b2=new Button("Fill");
    Button b3=new Button("Delete");
    Label l=new Label("Daire Sayisi");
    public void initApplet(){
        MODE=-1;
        this.setLayout(new FlowLayout());
        this.setBackground(Color.GRAY);
        this.setSize(500,500);
        addMouseListener(this);
        b.addActionListener(this);
        b2.addActionListener(this);
        b3.addActionListener(this);
        add(l);
        add(b);
        add(b2);
        add(b3);
    }
    public AppletKod() {
        initApplet();
    }
    public void update(Graphics g) {
        
    }
    private void daireCiz(int x, int y){
        Thread.yield();
        this.lx=x;
        this.ly=y;
        Graphics g=this.getGraphics();
        g.setColor(Color.GRAY);
        g.fillOval(lx,ly-1,50,50);
        g.setColor(Color.BLUE);
        g.fillOval(lx,ly,50,50);
    }
    public void paint( Graphics g ) {
        
    }
    public void mousePressed(MouseEvent e) {
        if(MODE==CIZ){
            daireCiz(e.getX(),e.getY());
        }else{
            daireSil(e.getX(),e.getY());
        }
        System.out.println("press:"+e.getX()+"-"+e.getY());
    }
    
    public void mouseClicked(MouseEvent e) {
        System.out.println(e.getX()+"-"+e.getY());
    }
    
    public void mouseReleased(MouseEvent e) {
        if(MODE==CIZ){
            dairesayisi++;
        
        l.setText("T:"+dairesayisi+" S:"+silinen);
        System.err.println("ds:"+dairesayisi);
        for(int i=ly; i<500;i++){
            try {
                Thread.sleep(10);
            } catch (InterruptedException ex) {
                ex.printStackTrace();
            }
            daireCiz(lx,i);
        }
        }
        System.out.println("releas:"+e.getX()+"-"+e.getY());
    }
    
    public void mouseEntered(MouseEvent e) {
    }
    
    public void mouseExited(MouseEvent e) {
    }
    
    public void actionPerformed(ActionEvent e) {
        System.err.println(e.getSource());
        if(e.getSource()==b){
            sil();
        }else if(e.getSource()==b2){
            MODE=CIZ;
        }else if(e.getSource()==b3){
            MODE=SIL;
        }
    }
    
    private void daireSil(int i, int i0) {
        if(MODE==SIL){
        silinen++;
        l.setText("T:"+dairesayisi+" S:"+silinen);
        Thread.yield();
        Graphics g=this.getGraphics();
        g.setColor(Color.GRAY);
        g.fillOval(i,i0,50,50);
        }
    }
    
    private void sil() {
        Thread.yield();
        Graphics g=this.getGraphics();
        g.setColor(Color.GRAY);
        g.drawRect(0,0,1000,1000);
    }
}