ProgressMonitor Dialog.

[agniputhran]

Hi,

I tried an example with progress monitor as given
in 'Core Java' book. While the 'cancel' button is
handled, the 'X' window closing button is not.

If i 'Cut' the dialog, the background thread goes
on and the status of the ProgressMonitor dialog
is not 'canceled'.

Any ideas how to handle the 'Cut' button.

thanx,
bhuvan.

[dogbear]

Agniputhran,

More information is needed about this ProgressMonitor Dialog you need help on.

What do you want to do?
Do you want to capture window-closing events?
What do you mean when you say 'Cut the Dialog'?
Is the ProgressMonitor not stopping when you try to kill the dialog?

Regards,
dogBear

[agniputhran]

sorry. i got the naming wrong.

I meant the dialog closing event.
When i press the 'close dialog' with the 'X' button (as in windows),
the dialog closes, but it is not asserted as anything.

I want it to report a 'Cancel' operation even if the 'X' is used to close the dialog.

If 'X' is pressed, the dialog is closed, but the background task goes on.

regards.
bhuvan.

[dogbear]

Agniputhran,

To recap:
The Cancel button works perfectly but the Windows Kill button doesn't.

Without the code you are using, I can only guess at this point.
What I can tell you is that there is a "Window-closing" event that is fired whenever the window is dismissed. Whatever code you wrote that the Cancel button executes when pressed is the same code you want called when the "Window-closing" event is fired.

To quickly help you with this problem, could you supply sample code and I'll show you what you need to do? It's the fastest way.

Regards,
dogBear

[agniputhran]

Hi,

Thats exactly what is happening. The Window close
event is not handled properly.

I need the window close event to work same as
the handler for the 'cancel' button.

I am using the javax.swing.ProgressMonitor class
for doing this.

Here is the code.


...
Timer tim = new Timer ( 500, this );
WorkerThread th = new WorkerThread();
th.start();
ProgressMonitor pm = new ProgressMonitor ( ... );
tim.start();
...



actionPerformed () // called by timer every 500ms
{
//get current state from thread.
// update ProgressMonitor with current state.
if ( pm.isCanceled() )
{
tim.stop(); // stop the timer which does checking.
pm.close(); // close the dialog
th.interrupt(); // stop the thread
}
}





hope this helps.

thanx,
bhuvan.