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I dont know how to use the IProgressMonitor stop button :( [message #497026]

Thu, 12 November 2009 05:06

Juan
Messages: 29
Registered: July 2009

Junior Member

Hi everybody!

I have a IProgressMonitor that I used when I launch a process since my
RCP: monitor.beginTask("Launching planner...",
IProgressMonitor.UNKNOWN);

I need to give users the posibility to stop the process using the stop
button of this progress monitor (it appears by default) but that button
do nothing when pressed and I don't know how to listen when user press
that button.

I've thought to implement an async thread that checks by polling if
monitor.isCanceled() is true, but I think that is not the best way.Does
anybody has an idea about this?

Thanks a lot and the best regards.

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Re: I dont know how to use the IProgressMonitor stop button :( [message #497050 is a reply to message #497026]

Thu, 12 November 2009 06:33

Ed Merks
Messages: 24539
Registered: July 2009

Senior Member

Juan,

Generally the code itself that's using the monitor to trace progress
should be checking the flag and terminating quickly...

Juan Miguel wrote:
> Hi everybody!
>
> I have a IProgressMonitor that I used when I launch a process since my
> RCP: monitor.beginTask("Launching planner...",
> IProgressMonitor.UNKNOWN);
>
> I need to give users the posibility to stop the process using the stop
> button of this progress monitor (it appears by default) but that
> button do nothing when pressed and I don't know how to listen when
> user press that button.
>
> I've thought to implement an async thread that checks by polling if
> monitor.isCanceled() is true, but I think that is not the best
> way.Does anybody has an idea about this?
>
> Thanks a lot and the best regards.

Report message to a moderator

Re: I dont know how to use the IProgressMonitor stop button :( [message #497096 is a reply to message #497050]

Thu, 12 November 2009 08:32

Juan
Messages: 29
Registered: July 2009

Junior Member

> Generally the code itself that's using the monitor to trace progress
> should be checking the flag and terminating quickly...
Yes, you're right but I was looking another sort of help, because it's
that checking of the flag what I dont know how to implement.

> Please don't cross post the same question to multiple newsgroups;
this isn't an SWT question.

Yes you're right. But think that the problem is relates to a
org.eclipse.jface.operation.AccumulatingProgressMonitor and I thought
some people expert in SWT perhaps would know something about this.Sorry.

Thanks!

Ed Merks escribió:
> Juan,
>
> Generally the code itself that's using the monitor to trace progress
> should be checking the flag and terminating quickly...
>
>
> Juan Miguel wrote:
>> Hi everybody!
>>
>> I have a IProgressMonitor that I used when I launch a process since my
>> RCP: monitor.beginTask("Launching planner...",
>> IProgressMonitor.UNKNOWN);
>>
>> I need to give users the posibility to stop the process using the stop
>> button of this progress monitor (it appears by default) but that
>> button do nothing when pressed and I don't know how to listen when
>> user press that button.
>>
>> I've thought to implement an async thread that checks by polling if
>> monitor.isCanceled() is true, but I think that is not the best
>> way.Does anybody has an idea about this?
>>
>> Thanks a lot and the best regards.

Report message to a moderator

Re: I dont know how to use the IProgressMonitor stop button :( [message #498101 is a reply to message #497026]

Sat, 14 November 2009 08:30

Wim Jongman
Messages: 417
Registered: July 2009

Senior Member

Hi Juan,

The pattern is like this (ignore the bad !style).

mon.

doWork(IProgressMonitor mon){

boolean workComplete = false;
while(!mon.isCancelled() && !workComplete){
workComplete = a_little_work(); }

if(!workComplete && mon.isCancelled){
dialog("You pressed the cancel button before work was complete")
}
}

Now, the good behaviour is to check the cancel button frequently.

Best regards,

Wim

> Hi everybody!
>
> I have a IProgressMonitor that I used when I launch a process since my
> RCP: monitor.beginTask("Launching planner...",
> IProgressMonitor.UNKNOWN);
>
> I need to give users the posibility to stop the process using the stop
> button of this progress monitor (it appears by default) but that button
> do nothing when pressed and I don't know how to listen when user press
> that button.
>
> I've thought to implement an async thread that checks by polling if
> monitor.isCanceled() is true, but I think that is not the best way.Does
> anybody has an idea about this?
>
> Thanks a lot and the best regards.

Report message to a moderator

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