对Java应用程序的安全桌面模式效果 [英] Secure Desktop Mode effect for java application
问题描述
我现在有没有人知道如何实现安全桌面模式（效果），例如从Windows Vista / 7 UAC同意块中获得？假设它是一些函数，它将会在这里去掉像素（并可能灰化它们），然后最终将其绘制到屏幕上...我想将它应用到我的应用程序中，以防止用户执行任何操作，直到另一个用户连接到系统（但除此之外）
我真的很感激这个建议。
问候
编辑：我真的只是在寻找这个
graphicsFX.setColor（new Color（0，0，0，0.8f））;
graphicsFX.fillRect（0，0，800，600）;
延迟输入我可以做得很好...
感谢所有人。
我们使用 public class JXLayerTest {
public static void main（String [] args）{
new JXLayerTest（）;
$ b $ public JXLayerTest（）{
EventQueue.invokeLater（new Runnable（）{
@Override
public void run（）{
尝试{
UIManager.setLookAndFeel（UIManager.getSystemLookAndFeelClassName（））;
} catch（ClassNotFoundException ex）{
} catch（InstantiationException ex）{
} catch（IllegalAccessException ex） {
} catch（UnsupportedLookAndFeelException ex）{
}
LockableUI ui = new LockableUI（）;
JPanel panel = new JPanel（new GridBagLayout（））;
buildUI（面板）;
//直接从JXLayer可锁博客中盗取
JXLayer图层= new JXLayer（panel，ui）;
// Java2D grayScale BufferedImageOp
ColorConvertOp grayScale = new ColorConvertOp（ColorSpace.getInstance（ColorSpace.CS_GRAY），null）;
//使用jxlayer的BufferedImageOpEffect
包装它BufferedImageOpEffect effect = new BufferedImageOpEffect（grayScale）;
//将其设为锁定效果
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（）;
尝试{
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）;
}
}）;
}
}
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 the another user connects to the system (but that is besides the point)
I would really appreciate the advise.
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 defering of input i can do quite well...
Thanks for 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);
}
});
}
}
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