import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Rectangle extends JComponent{
    int xOrigine;
    int yOrigine;
    int yDestination;
    int xDestination;
    int longueurFenetre;
    int hauteurFenetre;
    
    public Rectangle(){
	this.xOrigine = -1;
	this.yOrigine = -1;
	this.xDestination = -1;
	this.yDestination = -1;
	this.longueurFenetre = this.getWidth();
	this.hauteurFenetre = this.getHeight();
    }
	
    @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(0,255,100));	
	
        if (this.xOrigine >= 0 && this.yOrigine >= 0){
	    int newXOrigine = this.getWidth()*this.xOrigine/this.longueurFenetre;
	    int newYOrigine = this.getHeight()*this.yOrigine/this.hauteurFenetre;
	    int newLongueur = this.getWidth()*(this.xDestination-this.xOrigine)/this.longueurFenetre;
	    int newHauteur = this.getHeight()*(this.yDestination-this.yOrigine)/this.hauteurFenetre;
	    secondPinceau.fillRect(newXOrigine,newXOrigine,newLongueur,newHauteur);
	}
    }
}