/*

* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license

* Click nbfs://nbhost/SystemFileSystem/Templates/Classes/Class.java to edit this template

*/

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Graphics;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.awt.event.FocusEvent;

import java.awt.event.FocusListener;

import java.awt.event.MouseAdapter;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JPanel;

import javax.swing.JTextField;

import javax.swing.Timer;

import javax.swing.WindowConstants;

/**

* Glass pane used to blur the content of the window.

*

* @author SMedvynskyy

*/

@SuppressWarnings("serial")

public class SplashGlassPane extends JPanel implements FocusListener {

/**

* Creates new GlassPane.

*/

public SplashGlassPane() {

addMouseListener(new MouseAdapter() {});

addMouseMotionListener(new MouseAdapter() {});

addFocusListener(this);

setOpaque(false);

setFocusable(true);

setBackground(new Color(0, 0, 0, 190));

}

@Override

public final void setVisible(boolean v) {

// Make sure we grab the focus so that key events don't go astray.

if (v) {

requestFocus();

}

super.setVisible(v);

}

// Once we have focus, keep it if we're visible

@Override

public final void focusLost(FocusEvent fe) {

if (isVisible()) {

requestFocus();

}

}

/**

* {@inheritDoc}

*/

@Override

public final void paint(Graphics g) {

final Color old = g.getColor();

g.setColor(getBackground());

g.fillRect(0, 0, getSize().width, getSize().height);

g.setColor(old);

super.paint(g);

}

@Override

public void focusGained(FocusEvent fe) {

// nothing to do

}

public static void main(String[] args) {

final JFrame frm = new JFrame("Test blurring");

frm.add(new JTextField("It's first component"), BorderLayout.NORTH);

frm.add(new JTextField("It's second component"), BorderLayout.SOUTH);

final JButton btn = new JButton("Start blur");

btn.addActionListener(new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

frm.getGlassPane().setVisible(true);

final Timer t = new Timer(5000, new ActionListener() {

@Override

public void actionPerformed(ActionEvent e) {

frm.getGlassPane().setVisible(false);

}

});

t.setRepeats(false);

t.start();

}

});

frm.add(btn);

frm.setSize(500, 400);

frm.setGlassPane(new SplashGlassPane());

frm.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);

frm.setVisible(true);

}

}