AddMouseListener in fullscreen

Question

Hi, I'm using the following 2 classes for displaying images in fullscreen mode and they work fine.
But I need to display the images and also make them disappear when the user clicks on them. I'm trying to do it detecting the position of the mouse clicks and if those clicks are "inside" the image margins It disappears.
First I need to capture the mouse clicks but it's not working: I changed the FullScreen1 to implement MouseListener:
public class FullScreen1 extends JFrame implements MouseListener
and added the following events to FullScreen1:
public void mouseClicked( MouseEvent event )
     System.out.println("Hola, mundo");
System.out.println( "Clicked at [" + event.getX() +
", " + event.getY() + "]" );
public void mouseExited( MouseEvent event )
System.out.println( "Mouse outside window" );
public void mouseEntered( MouseEvent event )
//JOptionPane.showMessageDialog( null, "Mouse in window" );
     System.out.println("Mouse in window");
public void mouseReleased( MouseEvent event )
System.out.println( "Released at [" + event.getX() +
", " + event.getY() + "]" );
public void mousePressed( MouseEvent event )
System.out.println( "Pressed at [" + event.getX() +
", " + event.getY() + "]" );
but I can't add the addMouseListener and can't figure out how to do it
import java.awt.*;
import java.awt.font.FontRenderContext;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
import javax.swing.JFrame;
import java.awt.event.*;
public class FullScreen1 extends JFrame {
private static final GraphicsEnvironment gEnvironment = GraphicsEnvironment
.getLocalGraphicsEnvironment();
private static final GraphicsDevice gDevice = gEnvironment
.getDefaultScreenDevice();
private static final GraphicsConfiguration gConfiguration = gDevice
.getDefaultConfiguration();
private int nBuffers = 1;
private final Color defaultBackground = Color.WHITE;
private final Color defaultForeground = Color.BLACK;
private final Font defaultFont = new Font("SansSerif", Font.BOLD, 36);
public FullScreen1() {
super(gConfiguration);
try {
setUndecorated(true);
setIgnoreRepaint(true);
setResizable(false);
setFont(defaultFont);
setBackground(defaultBackground);
setForeground(defaultForeground);
gDevice.setFullScreenWindow(this);
setNBuffers(nBuffers);
finally {}
public void setNBuffers(int n) {
try {
createBufferStrategy(n);
nBuffers = n;
} catch (IllegalArgumentException e) {
System.err.println(
"Exception in FullScreen.setNBuffers(): "
+"requested number of Buffers is illegal - falling back to default");
createBufferStrategy(nBuffers);
try{
Thread.sleep(200);
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
public int getNBuffers() {
return nBuffers;
public void updateScreen() {
if (getBufferStrategy().contentsLost())
setNBuffers(nBuffers);
getBufferStrategy().show();
public void displayImage(BufferedImage bi) {
if( bi!=null){
double x = (getWidth() - bi.getWidth()) / 2;
double y = (getHeight() - bi.getHeight()) / 2;
displayImage((int) x, (int) y, bi);
public void displayImage(int x, int y, BufferedImage bi) {
Graphics2D g = (Graphics2D)getBufferStrategy().getDrawGraphics();
try {
if(g!=null && bi!=null)
g.drawImage(bi, x, y, null);
finally {
g.dispose();
public void displayText(String text) {
Graphics2D g = (Graphics2D)getBufferStrategy().getDrawGraphics();
if( g!=null && text!= null){
Font font = getFont();
g.setFont(font);
FontRenderContext context = g.getFontRenderContext();
Rectangle2D bounds = font.getStringBounds(text, context);
double x = (getWidth() - bounds.getWidth()) / 2;
double y = (getHeight() - bounds.getHeight()) / 2;
double ascent = -bounds.getY();
double baseY = y + ascent;
displayText((int) x, (int) baseY, text);
public void displayText(int x, int y, String text) {
Graphics2D g = (Graphics2D)getBufferStrategy().getDrawGraphics();
try {
if(g!=null && text!=null){
g.setFont(getFont());
g.setColor(getForeground());
g.drawString(text, x, y);
finally {
g.dispose();
public void blankScreen() {
Graphics2D g = (Graphics2D)getBufferStrategy().getDrawGraphics();
try {
if(g!=null){
g.setColor(getBackground());
g.fillRect(0, 0, getWidth(), getHeight());
finally {
g.dispose();
public void hideCursor() {
Cursor noCursor = null;
Toolkit tk = Toolkit.getDefaultToolkit();
Dimension d = tk.getBestCursorSize(1,1);
if((d.width|d.height)!=0)
noCursor = tk.createCustomCursor(
gConfiguration.createCompatibleImage(d.width, d.height),
new Point(0, 0), "noCursor");
setCursor(noCursor);
public void showCursor() {
setCursor(new Cursor(Cursor.DEFAULT_CURSOR));
public void closeScreen() {
gDevice.setFullScreenWindow(null);
dispose();
public void mouseClicked( MouseEvent event )
     System.out.println("Heloooooooo");
System.out.println( "Clicked at [" + event.getX() +
", " + event.getY() + "]" );
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import java.awt.event.MouseEvent;
public class HelloPsychophysicist {
public static void main(String[] args) {
FullScreen1 fs = new FullScreen1();
fs.setNBuffers(2);
fs.addMouseListener(this);
try {
fs.displayText("Helloo trial 2500 ms!!!");
fs.updateScreen();
Thread.sleep(2500);
fs.blankScreen();
BufferedImage bi1 = ImageIO.read(new File("cintu.jpg"));
fs.displayImage(bi1);
fs.updateScreen();
//fs.hideCursor();
Thread.sleep(2000);
fs.blankScreen();
          BufferedImage im1 = ImageIO.read(new File("cintu.jpg"));
fs.displayImage(200,130,im1);     
BufferedImage im2 = ImageIO.read(new File("sombri.jpg"));
fs.displayImage(700,130,im2);
          BufferedImage im3 = ImageIO.read(new File("tala.jpg"));
fs.displayImage(200,400,im3);
          BufferedImage im4 = ImageIO.read(new File("tasa.jpg"));
fs.displayImage(700,500,im4);
fs.updateScreen();
Thread.sleep(3000);
          fs.blankScreen();
} catch (IOException e) {
System.err.println("File not found");
e.printStackTrace();
} catch (InterruptedException e) {
Thread.currentThread().interrupt();
finally {
fs.closeScreen();
}

Answer 1

2 things.
If you want to get help post your code using the code button (select the code with the mouse and the click on the code button.
I have had a similar problem just last week and at the end I added a jlabel with the same bounds of the image. So you add your mouse listener to the jlabel and you don't have to worry about calculation mouse positions.
It is simple and it works.