fxruby users - May 2008 - problem with non-focused fxruby gui freezing or blanking out.

I find that when a running fxruby program looses focus or another window is
placed in front of it, when the fxruby window regains focus, many times the
gui is now frozen or blank. 

This seems to happen especially frequently when the window covering it is a
java or fox based application.

Usually it comes back but sometimes it takes several minutes to do so.


I would really like to find someway to stop this from occurring.


A good of this is a program I have that parses a large csv file and while
the processing taking place it updates a progress bar. once the window
looses focus frequently the progress bar and labels do not update again
until the process is complete.

I have a general idea why this occurs, but don''t really know how to
stop it.
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> A good of this is a program I have that parses a large csv file
Sounds like you need to do the lengthy processing in "chore"...

Vlad

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On Fri, May 23, 2008 at 12:02 PM, Vladimir Konrad <v.konrad at lse.ac.uk>
wrote:
> Sounds like you need to do the lengthy processing in "chore"...
Probably belongs in a thread, but if there''s a way to sensibly do it
in a chore, that would be OK too.

fxruby-users-bounces at rubyforge.org wrote:
> I find that when a running fxruby program looses focus or another
> window is placed in front of it, when the fxruby window regains
> focus, many times the gui is now frozen or blank.  
> 
> This seems to happen especially frequently when the window covering
> it is a java or fox based application. 
> 
> Usually it comes back but sometimes it takes several minutes to do so.
> 
> 
> I would really like to find someway to stop this from occurring.
> 
> 
> A good of this is a program I have that parses a large csv file and
> while the processing taking place it updates a progress bar. once the
> window looses focus frequently the progress bar and labels do not
> update again until the process is complete.   
> 
> I have a general idea why this occurs, but don''t really know how
to
> stop it. 
Hi,

Does a call to FXApp.disableThreads before FXApp.create help maybe?

Philippe

On May 26, 2008, at 1:13 AM, Philippe Lang wrote:
> Does a call to FXApp.disableThreads before FXApp.create help maybe?
Granted, we don''t know a lot about this particular case yet, but
I''m
guessing that that''s not the problem. It is true that when
FXRuby''s
support for threads is enabled, you''ll see a bit of a performance hit  
(whenever FXRuby allocates some time to Ruby''s thread scheduler) but  
it shouldn''t ever just completely lock up the system like this.

---
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