Giorno: 30 Settembre 2015

package pallina;

import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;

import javax.swing.JPanel;

public class JCoordinate extends JPanel implements MouseMotionListener, MouseListener {

	private int x = 0, y = 0;

	public JCoordinate() {
		this.setPreferredSize(new Dimension(100, 100));
		this.addMouseMotionListener(this);
		this.addMouseListener(this);
	}

	@Override
	protected void paintComponent(Graphics g) {
		super.paintComponent(g);

		int w = this.getWidth();
		int h = this.getHeight();

		g.setColor(Color.LIGHT_GRAY);
		g.fillRect(0, 0, w, h);
		g.setColor(Color.BLACK);
		g.drawString("(" + x + "," + y + ")", x, y);
	}

	@Override
	public void mouseDragged(MouseEvent me) {
	}

	@Override
	public void mouseMoved(MouseEvent me) {
		x = me.getX();
		y = me.getY();
		this.repaint();
	}

	@Override
	public void mouseClicked(MouseEvent e) {
		JPanel box = new JPanel();
		box.setSize(5, 5);
		box.setLocation(x, y);
		box.setBackground(Color.RED);
		box.setVisible(true);
		this.add(box);
		this.repaint();
	}

	@Override
	public void mouseEntered(MouseEvent e) {
		
	}

	@Override
	public void mouseExited(MouseEvent e) {
	}

	@Override
	public void mousePressed(MouseEvent e) {
	}

	@Override
	public void mouseReleased(MouseEvent e) {
	}

}