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Re: [udig-devel] how to start threads with monitor?
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Hi,
Display widgets can only be modified in the display thread. Take a
look at the methods is PlatformGIS for a bunch of help with regards
to threading.
As mentioned Jobs start up a new thread and allow progress to be
monitored. If you set the job's setUser( true ) then the progress
dialog will open. Remember that you have to update UI components in
the Display thread. Display.asyncExec for example.
Jesse
On Apr 23, 2007, at 6:40 AM, Andrea Antonello wrote:
Thanks for your reply Zlatko,
I tried also the Job way, but I get the same Invalid Thread Access
exception:
Job job = new Job("my job ") {
protected IStatus run(IProgressMonitor monitor) {
domyCodeWork()
return Status.OK_STATUS;
}
};
job.schedule();
Also the code you modified below doesn't work with the same error...
I'm really confused (and I'm rather new to RCP and SWT), sinced in my
opinion it happens often that you launch a dialog and while the dialog
is there you do some work, without freezing the interface. But I can't
find working examples.
In swing there was this SwingUtilities.invokelater that worked
pretty well.
I guess I 'm missing something of the deeper theory.
Isn't there in udig an Action that does something like that?
Andrea
Zlatko Perenda probaly wrote:
Hi,
I did some asking around, this is what a friend of mine came up
with....
You have to implement a job, org.eclipse.core.runtime.jobs.Job .
You have
run(IprogressMonitor pm) there, where you implement the method and
change
whatever you want through pm. You can add listeners if you want to do
something after the job is done.
And your code from first post, reworked some
Display display = Display.getCurrent();
if (display == null)
{
display = Display.getDefault();
}
display.asyncExec(new Runnableevent)
{
public void run()
{
IWorkbench wb = PlatformUI.getWorkbench();
IProgressService ps = wb.getProgressService();
ps.busyCursorWhile(new IRunnableWithProgress(){
public void run( IProgressMonitor pm ) {
doMyCodeWithMonitorActivity()
}
});
}
});
I hope this helps....
Zlatko.
-----Original Message-----
From: Andrea Antonello [mailto:andrea.antonello@xxxxxxxxx]
Sent: Monday, April 23, 2007 2:42 PM
To: Zlatko Perenda
Cc: 'User-friendly Desktop Internet GIS'
Subject: Re: [udig-devel] how to start threads with monitor?
Hi Zlatko,
that is indeed what I am doing to make it work for now (the
asyncExec I
mean), but that doesn't supply my the so much loved monitor...
Where do I get the monitor from?
Thanks,
Andrea
Zlatko Perenda probaly wrote:
Hm, seems like you are accesing UI thread, from another....
Try Display.asyncExec(runnable), and let runnable do the
neccesary work. I
think this should work.
-----Original Message-----
From: udig-devel-bounces@xxxxxxxxxxxxxxxxxxxxx
[mailto:udig-devel-bounces@xxxxxxxxxxxxxxxxxxxxx] On Behalf Of
Andrea
Antonello
Sent: Monday, April 23, 2007 2:25 PM
To: User-friendly Desktop Internet GIS
Subject: [udig-devel] how to start threads with monitor?
I know this is more a rcp question than a udig, but I'm not able
to add
progress tracking to my actions.
The tool extention point doesn't supply a monitor and whenever I try
somethin g like:
IWorkbench wb = PlatformUI.getWorkbench();
IProgressService ps = wb.getProgressService();
ps.busyCursorWhile(new IRunnableWithProgress(){
public void run( IProgressMonitor pm ) {
doMyCodeWithMonitorActivity()
}
});
I get an Invalid thread access exception.
Any hint?
Thanks in advance,
Andrea
_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel
_______________________________________________
User-friendly Desktop Internet GIS (uDig)
http://udig.refractions.net
http://lists.refractions.net/mailman/listinfo/udig-devel
