Hi everyone :))))
there is a problem here !this code should draw a rectangle whenever I presse on the mouse ! but actually it doesn't do that !!
when I execute the prog. it gives me the frame window ! but when I presse the mouse ,it should draw a rectangle !
but in fact it doesn't draw anything !!
so what is the wrong with my code ??!
thanks :)
import javax.swing.*;
import java.util.*;
import java.awt.*;
import java.awt.event.*;
public class VectorDraw extends JPanel {
private Point P1,P2;
private Vector V;
private Boolean flag ;
private Rectangle CurrRect,NewRect;
public VectorDraw(){
P1=new Point (0,0);
P2=new Point (0,0);
V=new Vector ();
Inner1 Handler1=new Inner1 ();
Inner2 Handler2=new Inner2 ();
addMouseListener(Handler1 );
addMouseMotionListener (Handler2 );
}
private class Inner1 extends MouseAdapter {
public void mousePressed(MouseEvent E){
P1=E.getPoint();
}
public void mouseReleased(MouseEvent E){
P2=E.getPoint();//why !!
NewRect=new Rectangle (Math.min(P1.x,P2.x),Math.min(P1.y,P2.y),
Math.abs(P1.x-P2.x),Math.abs(P1.y-P2.y)
);
//flag=false;
V.add(NewRect);
repaint();
}
}
private class Inner2 extends MouseMotionAdapter {
public void mouseDragged(MouseEvent E){
P2=E.getPoint();
CurrRect=new Rectangle (Math.min(P1.x,P2.x),Math.min(P1.y,P2.y),
Math.abs(P1.x-P2.x),Math.abs(P1.y-P2.y)
);
flag=false;
repaint();
}
}
public void paintComponent(Graphics g){
super.paintComponent(g);
g.setColor(Color.BLUE);
for (int i=0;i<V.size();i++){
//= new Rectangle ();
Rectangle R;
R=(Rectangle)V.get(i);
g.drawRect(R.x, R.y, R.width, R.height);
}
g.setColor(Color.RED);
if (!flag){
g.drawRect(CurrRect.x, CurrRect.y, CurrRect.width, CurrRect.height);
}
}
public static void main(String[] args) {
VectorDraw O=new VectorDraw();
JFrame obj=new JFrame();
obj.setSize (600,600);
obj.setVisible(true);
obj.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}
}
