Mega Code Archive
Implements MouseListener
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import java.awt.Container;
import java.awt.Dimension;
import java.awt.Graphics;
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 MainClass {
public static void main(String[] args) {
JFrame aWindow = new JFrame();
aWindow.setBounds(200, 200, 200, 200);
aWindow.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Container content = aWindow.getContentPane();
content.add(new MouseMotionEvents());
aWindow.setVisible(true);
}
}
class MouseMotionEvents extends JPanel implements MouseListener,
MouseMotionListener {
Point p;
public MouseMotionEvents() {
addMouseListener(this);
addMouseMotionListener(this);
}
public void mouseClicked(MouseEvent me) {
}
public void mouseEntered(MouseEvent me) {
}
public void mouseExited(MouseEvent me) {
}
public void mousePressed(MouseEvent me) {
p = me.getPoint();
repaint();
}
public void mouseReleased(MouseEvent me) {
p = null;
repaint();
}
public void mouseDragged(MouseEvent me) {
p = me.getPoint();
repaint();
}
public void mouseMoved(MouseEvent me) {
}
public void paint(Graphics g) {
if (p != null) {
Dimension d = getSize();
int xc = d.width / 2;
int yc = d.height / 2;
g.drawLine(xc, yc, p.x, p.y);
}
}
}
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