Tiger
Member
Posts : 7
Join date : 2011-04-17
 |  Subject: how to check if window is visible? Wed May 11, 2011 11:27 pm | |
| hello, i have a simple program that opens nested in the icontray ( windows ). this part works fine, I can launch the program from there, however if I can click more then once and the program opens several times. so i'm wondering how can i check it the window is already open and if it is, simple minimize it back to the icon tray? my code thus far; - Code:
-
public static void main(String[] args) {
SwingUtilities.invokeLater(new Runnable() {
public void run() {
ShippingQuote application = new ShippingQuote();
application.getJFrame().setVisible(true);
if (SystemTray.isSupported()) {
SystemTray tray = SystemTray.getSystemTray();
trayIcon.setImageAutoSize(true);
trayIcon.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
ShippingQuote application = new ShippingQuote();
application.getJFrame().setVisible(true);
}
});
try {
tray.add(trayIcon);
} catch (AWTException e) {
System.err.println("TrayIcon could not be added.");
}
}
}
});
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Skilletrockz
Super Moderator
Posts : 45
Join date : 2011-05-11
| | Subject: Re: how to check if window is visible? Wed May 11, 2011 11:28 pm | |
| It won't quite work with what you have, your listener is spawning a new instance each time (assuming that the getJFrame indicates that the ShippingQuote contains a frame / is a frame). Here's a quick mish-mash I put together. I choose to use a mouseevent instead since I added the display text. Clicking the balloons would trigger the action event which is also not super if you wanted to use the balloon. I also don't like the double click force, so I like the click control instead. - Code:
-
public class Frametest extends JFrame
{
public static void main(String[] argv)
{
final Frametest f = new Frametest();
f.setSize(100, 100);
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
if (SystemTray.isSupported())
{
SystemTray tray = SystemTray.getSystemTray();
try
{
ImageIcon i = new ImageIcon("C:\\java.jpeg");
TrayIcon ti = new TrayIcon(i.getImage());
ti.setImageAutoSize(true);
ti.addMouseListener(new MouseAdapter(){
@Override
public void mouseClicked(MouseEvent e)
{
super.mouseClicked(e);
e.consume();
if (e.getButton() == MouseEvent.BUTTON1)
{
TrayIcon ti = (TrayIcon)e.getSource();
ti.displayMessage("Frame Toggle", f.isVisible() ? "Closing frame..." :
"Opening frame...", MessageType.INFO);
f.setVisible(!f.isVisible());
}
}
});
tray.add(ti);
}
catch (Exception ex)
{
System.err.println(ex.getMessage());
}
}
else
{
f.setVisible(true);
}
}
}
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Tiger
Member
Posts : 7
Join date : 2011-04-17
| | Subject: Re: how to check if window is visible? Wed May 11, 2011 11:29 pm | |
| thanks! i'll give this a shot
|
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