import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Rond extends JComponent implements MouseWheelListener{
	public int nbRond;
	
	public Rond(int nbRond){
		this.nbRond = nbRond;
	}
	
    @Override
    protected void paintComponent(Graphics pinceau) {
	Graphics secondPinceau = pinceau.create();
	secondPinceau.setColor(new Color(0,0,0));
	secondPinceau.fillRect(0, 0, this.getWidth(), this.getHeight());
	
	
	secondPinceau.setColor(new Color(255,255,255));
	
	int x = this.getWidth()/this.nbRond;
	for (int i=1; i<=this.nbRond; i++){
		secondPinceau.fillOval(i*x-x/2, this.getHeight()/2,50,50);
	}
    }
    
    public void mouseWheelMoved(MouseWheelEvent e){
        if (e.getWheelRotation() < 0) {
            System.out.println("mouse wheel Up");
        } else {
            System.out.println("mouse wheel Down");
        }
    }
}