Code:
package knote;
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Point;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Knoten extends JPanel {
Knoten (){
super();
addMouseListener(new Controller());
addMouseMotionListener(new Controller());
}
@Override
public void paintComponent(Graphics g) {
// TODO Auto-generated method stub
super.paintComponents(g);
System.out.println("paint!");
Graphics2D g2 = (Graphics2D)g;
g2.drawOval(10, 10, 60, 50);
g2.drawOval(60, 100, 60, 50);
g2.drawOval(80, 170, 60, 50);
g2.drawOval(180, 180, 60, 50);
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
JFrame f = new JFrame();
Knoten k = new Knoten();
f.add(k);
f.setTitle("Knoten");
f.setSize(300,300);
f.setVisible(true);
}
class Controller implements MouseListener, MouseMotionListener{
Controller(){
super();
}
public void mouseDragged(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseMoved(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseClicked(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseEntered(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mouseExited(MouseEvent e) {
// TODO Auto-generated method stub
}
public void mousePressed(MouseEvent e) {
// TODO Auto-generated method stub
System.out.println("pressed!");
repaint();
}
public void mouseReleased(MouseEvent e) {
// TODO Auto-generated method stub
}
}
}
