Does anyone now how to achieve a "Secure-Desktop Mode" (effect) such as one gets from the Windows Vista/7 UAC consent-blocks?
I assume it is some function which will remove pixels here-and-there (and possibly graying them) and then finally drawing that to screen. I would like to apply it to my application to keep the user from doing anything until another user connects to the system (but that is beside the point).
I would really appreciate the advice.
Kind regards,
A.
EDIT: I was really only looking for this
graphicsFX.setColor(new Color(0, 0, 0, 0.8f));
graphicsFX.fillRect(0, 0, 800, 600);
The deferring of input I can do quite well.
Thanks to all.
We use JXLayer for this exact purpose...
This is really useful as it locks the user out of the given container without locking the out of the application like a GlassPane
solution does. It's like a glass pane for containers ;)
I stole the basic idea for here
public class JXLayerTest {
public static void main(String[] args) {
new JXLayerTest();
}
public JXLayerTest() {
EventQueue.invokeLater(new Runnable() {
@Override
public void run() {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (ClassNotFoundException ex) {
} catch (InstantiationException ex) {
} catch (IllegalAccessException ex) {
} catch (UnsupportedLookAndFeelException ex) {
}
final LockableUI ui = new LockableUI();
JPanel panel = new JPanel(new GridBagLayout());
buildUI(panel);
// This stolen directly from the JXLayer lockable blog
JXLayer layer = new JXLayer(panel, ui);
// Java2D grayScale BufferedImageOp
ColorConvertOp grayScale = new ColorConvertOp(ColorSpace.getInstance(ColorSpace.CS_GRAY), null);
// wrap it with the jxlayer's BufferedImageOpEffect
BufferedImageOpEffect effect = new BufferedImageOpEffect(grayScale);
// set it as the locked effect
ui.setLockedEffects(effect);
ui.setLocked(false);
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLayout(new BorderLayout());
frame.add(layer);
JPanel panelButtons = new JPanel(new GridBagLayout());
final JButton lock = new JButton("Lock");
lock.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
boolean locked = !ui.isLocked();
ui.setLocked(locked);
lock.setText(locked ? "Unlock" : "Lock");
}
});
panelButtons.add(lock);
frame.add(panelButtons, BorderLayout.SOUTH);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
protected void buildUI(JPanel panel) {
GridBagConstraints gbc = new GridBagConstraints();
gbc.gridx = 0;
gbc.gridy = 0;
JLabel label = new JLabel();
try {
BufferedImage image = ImageIO.read(new File("megatokyo.png"));
label.setIcon(new ImageIcon(image));
} catch (IOException ex) {
label.setText("Nothing to see here");
}
panel.add(label, gbc);
JButton button = new JButton("Clickl me");
button.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent e) {
JOptionPane.showMessageDialog(null, "Clicked");
}
});
gbc.gridy++;
panel.add(button, gbc);
}
});
}
}