Re: [Gnumed-devel] re: callback from event loop in wxPython

[syan tan]

> As I said, I didn't care whichever way events got INTO GnuMed
> but rather how they were transferred into the "main" event
loop.

I tried this way, and it didn't seem to slow down
anything severely. Maybe the phrasewheel might be
affected, but I think it still works on testing the
suburb popup in the demographics panel.



Diff for python-common/gmDispatcher.py

9a10
> import Queue
10a12
> queue = Queue.Queue(100)
93c95,114
< def send(signal, sender=None, **kwds):
---
> 
> def send(signal, sender=None, **kwds):
>       item= (signal, sender, kwds)
>       try:
>               queue.put_nowait(item)
>       except Queue.Full:
>               print "queue full"
> 
> def sendQueued():
>       while 1:
>               try:
>                       (signal, sender, kwds) = queue.get_nowait()
>                       _send(signal, sender, **kwds)
>                       
>               except Queue.Empty:
>                       return
>               
>       
> 
> def _send(signal, sender=None, **kwds):


diff for wxpython/gmGuiMain.py


325c325
< #             EVT_IDLE(self, self.OnIdle)
---
>               EVT_IDLE(self, self.OnIdle)
508a509
>                 
520c521
< #     def OnIdle(self, event):
---
>       def OnIdle(self, event):
523c524,528
< #             pass
---
>               gmDispatcher.sendQueued()


One problem I could see here is that if OnIdle 
isn't called for a long time (which it shouldn't)
no signals would be passed on , and the gmDispatcher
queue would just bloat up with signals.