Traits event loop

[Brennan Williams]

Is it possible/easy to set up the event loop so that it runs some sort
of check_for_new_files() method say every 30 seconds?

Thx

Brennan


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[Robert Kern]

On Sun, Feb 6, 2011 at 9:41 PM, Brennan Williams
<[hidden email]> wrote:
> Is it possible/easy to set up the event loop so that it runs some sort
> of check_for_new_files() method say every 30 seconds?

There is no Traits event loop. If you have a GUI app, use the GUI
event loop. We do wrap the toolkits' timer objects in Pyface, if you
want to be backend-independent.


from enthought.pyface.timer.api import Timer

t = Timer(30*1000, check_for_new_files)
t.Start()

--
Robert Kern
Enthought
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[Brennan Williams]

On 7/02/2011 4:55 p.m., Robert Kern wrote:
> On Sun, Feb 6, 2011 at 9:41 PM, Brennan Williams
> <[hidden email]>  wrote:
>> Is it possible/easy to set up the event loop so that it runs some sort
>> of check_for_new_files() method say every 30 seconds?
> There is no Traits event loop. If you have a GUI app, use the GUI
> event loop. We do wrap the toolkits' timer objects in Pyface, if you
> want to be backend-independent.
>
>
OK yes I'm using GUI as in...

gui=GUI()
.....
gui.start_event_loop()

> from enthought.pyface.timer.api import Timer
>
> t = Timer(30*1000, check_for_new_files)
> t.Start()
>
So if I use Timer does it go off in a separate thread? I'm thinking of
having a method that checks for new files and updates a Traits List
which is in the View being displayed. Sound ok? I'm having a bit of a
dig around the pyface code this evening to understand what's going on.

Thx

Brennan


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[Brennan Williams]

On 7/02/2011 9:29 p.m., Brennan Williams wrote:

> On 7/02/2011 4:55 p.m., Robert Kern wrote:
>> On Sun, Feb 6, 2011 at 9:41 PM, Brennan Williams
>> <[hidden email]>   wrote:
>>> Is it possible/easy to set up the event loop so that it runs some sort
>>> of check_for_new_files() method say every 30 seconds?
>> There is no Traits event loop. If you have a GUI app, use the GUI
>> event loop. We do wrap the toolkits' timer objects in Pyface, if you
>> want to be backend-independent.
>>
>>
> OK yes I'm using GUI as in...
>
> gui=GUI()
> .....
> gui.start_event_loop()
>
>> from enthought.pyface.timer.api import Timer
>>
>> t = Timer(30*1000, check_for_new_files)
>> t.Start()
>>
> So if I use Timer does it go off in a separate thread? I'm thinking of
> having a method that checks for new files and updates a Traits List
> which is in the View being displayed. Sound ok? I'm having a bit of a
> dig around the pyface code this evening to understand what's going on.
>

Just to confirm, I'm looking at...

https://svn.enthought.com/enthought/browser/TraitsGUI/trunk/examples/timer.py?rev=23585

Brennan

> Thx
>
> Brennan
>
>
> _______________________________________________
> Enthought-Dev mailing list
> [hidden email]
> https://mail.enthought.com/mailman/listinfo/enthought-dev
>

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[Chris Colbert]

On Mon, Feb 7, 2011 at 4:05 AM, Brennan Williams <[hidden email]> wrote:

On 7/02/2011 9:29 p.m., Brennan Williams wrote:
> On 7/02/2011 4:55 p.m., Robert Kern wrote:
>> On Sun, Feb 6, 2011 at 9:41 PM, Brennan Williams
>> <[hidden email]>   wrote:
>>> Is it possible/easy to set up the event loop so that it runs some sort
>>> of check_for_new_files() method say every 30 seconds?
>> There is no Traits event loop. If you have a GUI app, use the GUI
>> event loop. We do wrap the toolkits' timer objects in Pyface, if you
>> want to be backend-independent.
>>
>>
> OK yes I'm using GUI as in...
>
> gui=GUI()
> .....
> gui.start_event_loop()
>
>> from enthought.pyface.timer.api import Timer
>>
>> t = Timer(30*1000, check_for_new_files)
>> t.Start()
>>
> So if I use Timer does it go off in a separate thread? I'm thinking of
> having a method that checks for new files and updates a Traits List
> which is in the View being displayed. Sound ok? I'm having a bit of a
> dig around the pyface code this evening to understand what's going on.
>

The time is a toolkit-specific timer. If you are using wx, the pyface timer uses a wx.Timer. If you are using qt, the pyface timer will use a QTimer. The timer is managed by the gui toolkit. It runs in the main gui event loop thread. 

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