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Re: [udig-devel] how to start threads with monitor?
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I see... :( I have brought execution responsability into the gui... you
are right, that is why things are so messy.
Pattern, pattern... :)
Thanks,
Ciao
Andrea
Jesse Eichar probaly wrote:
> So I think you could just reorder things then:
>
> final Runnable openMessage = new Runnable(){
> public void run(){
> MessageDialog dialog = new MessageDialog(new Shell(SWT.BORDER |
> SWT.DIALOG_TRIM), "Warning", null, "Will I show up?",
> MessageDialog.WARNING, new String[]{"Ok"}, 0);
> dialog.open();
> }
> }
> }
>
> Display.getDefault().asyncExec( openMessage );
>
> IRunnableWithProgress operation = new IRunnableWithProgress(){
>
> public void run( IProgressMonitor monitor ) throws
> InvocationTargetException, InterruptedException {
> monitor.beginTask("Message!!!", 100);
> // do operation.
> };
>
> PlatformGIS.runInProgressDialog( "Running my Operation", true, operation );
>
>
> On Apr 26, 2007, at 11:56 PM, Andrea Antonello wrote:
>
>> alright, I'm not as good as I would like in describing things :)
>> So here I go:
>>
>> I used the tool extention point to create an Action. This is a button in
>> the toolbar that launches a dialog used to configure the module.
>> So I click on the button and a fancy dialog appears. I set my variables
>> and maps and push the start button. At that point I would like to have
>> my whole gui not to be blocked, while the algorithm does its work.
>> Also I would give feedback to the user about what is going on, so I need
>> the monitor instance.
>>
>> Your example below has two problems;
>> - it starts up a progress window while the user has to first fill in
>> stuff in the dialog, so no work is done at that point (only after
>> pushing start button on the dialog)
>> - I do not have the monitor instance yet
>>
>>
>> Andrea
>>
>>
>> Jesse Eichar probaly wrote:
>>> Hi Andrea. I think we need more of your intentions. So usually if you
>>> are running with a progress monitor you are NOT in the Display thread so
>>> you can't do any UI stuff, much like Swing. Second that method has a
>>> bug so the progress monitor is currently hidden. I will fix that bug.
>>> For now use runInProgressDialog So for your example you may want to
>>> do:
>>>
>>> final Runnable openMessage = new Runnable(){
>>> public void run(){
>>> MessageDialog dialog = new MessageDialog(new Shell(SWT.BORDER |
>>> SWT.DIALOG_TRIM),
>>> "Warning", null, "Will I show up?",
>>> MessageDialog.WARNING, new String[]{"Ok"}, 0);
>>> dialog.open();
>>> }
>>> }
>>> }
>>>
>>> IRunnableWithProgress operation = new IRunnableWithProgress(){
>>>
>>>
>>>
>>> public void run( IProgressMonitor monitor ) throws
>>> InvocationTargetException, InterruptedException {
>>> monitor.beginTask("Message!!!", 100);
>>>
>>> Display.getDefault().asyncExec( openMessage );
>>>
>>> };
>>>
>>>
>>> runInProgressDialog( "Running my Operation", true, operation );
>>>
>>> Jesse
>>>
>>>
>>> On Apr 26, 2007, at 2:43 PM, Andrea Antonello wrote:
>>>
>>>> Hi Jesse,
>>>> I think I really miss a piece of the truth...
>>>>
>>>> Reduced to the minimum, I now only try to launch a messagedialog from
>>>> within the run method of the AbstractActionTool retrieved from the
>>>> tools extention point. It is really few code:
>>>>
>>>> IRunnableWithProgress runner = new IRunnableWithProgress(){
>>>>
>>>> public void run( IProgressMonitor monitor ) throws
>>>> InvocationTargetException, InterruptedException {
>>>> monitor.beginTask("Message!!!", 100);
>>>> MessageDialog dialog = new MessageDialog(new Shell(SWT.BORDER |
>>>> SWT.DIALOG_TRIM),
>>>> "Warning", null, "Will I show up?",
>>>> MessageDialog.WARNING, new String[]{"Ok"}, 0);
>>>> dialog.open();
>>>> }
>>>>
>>>> };
>>>>
>>>> PlatformGIS.run(runner);
>>>>
>>>>
>>>> This gives the usual error of invealid thread access. What is wrong
>>>> here?
>>>> If I use the runBlockingOperation method it is worse, nothing shows up.
>>>>
>>>> Any idea?
>>>> Andrea
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> Jesse Eichar probaly wrote:
>>>>> 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>
>>>>>>>> [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
>>>>>
>>>>>
>>>
>
>
