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|
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.image.*;
public class Caree extends JFrame implements MouseMotionListener{
private int xPrec, yPrec;
private JPanel p;
private Image img;
private Graphics imgGraph;
public Caree(){
super("Le rectangle magic");
p = new JPanel();
p.addMouseMotionListener(this);
img = new BufferedImage(600,600,BufferedImage.TYPE_INT_RGB);
imgGraph = img.getGraphics();
getContentPane().add(p);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setSize(600,600);
setLocationRelativeTo(null);
setVisible(true);
}
public static void main(String[] args){
new Caree();
}
public void mouseDragged(MouseEvent e){
Graphics g = getGraphics();
g.setColor(Color.BLACK);
for(int i = 0;i < 100; i++){
g.fillRect(i,80,e.getX(),e.getX());
}
mouseMoved(e);
effacer();
}
public void mouseMoved(MouseEvent e){
xPrec = e.getX();
yPrec = e.getY();
}
public void effacer(){
Color c = imgGraph.getColor();
imgGraph.setColor(Color.WHITE);
imgGraph.fillRect(0,0,img.getWidth(this),img.getHeight(this));
imgGraph.setColor(c);
repaint();
}
public void paintComponent(Graphics g){
paintComponent(g);
g.drawImage(img,0,0,this);
}
} |
