Tk window and contents will not display

[Chris Hare]

On Aug 14, 2010, at 6:46 PM, Peter Otten wrote:

> Chris Hare wrote:
> 
>> 
>> On Aug 14, 2010, at 5:49 PM, Peter Otten wrote:
>> 
>>> Chris Hare wrote:
>>> 
>>>> Thanks Peter.  I threw away what I started with and merged your code
>>>> into my class:
>>>> 
>>>> class externalLoopDisplay:
>>>> 
>>>>   def show(self):
>>>>       main.logging.debug("externalLoopDisplay.show:","start")
>>>> 
>>>>       self.window = Tk()
>>>> 
>>>>       self.btnClose = Button(self.window, text="Close",
>>>>       command=self.window.destroy,
>>>>       bg=backColor,highlightbackground=warnColor,
>>>>       highlightcolor=okColor) self.btnClose.grid(row=0, column=2)
>>>>       self.label = Label(self.window) self.label.grid(row=1, column=0,
>>>>       columnspan=3)
>>>>       dirName =  getRadarPath() + "/net" + str(netNumber.get()) # e.g.
>>>>       .../Radar/net17/net17-YYYYMMDDHHMMSS.gif
> 
>> Thanks.  One final question if I may, how would you suggest I handle
>> checking for new files and adding them to the list?  For example, if the
>> loop is playing and a new image is added, how can I detect it and then
>> refresh the list of file?
>> 
>> I am stuck on that part with this new approach.
>> 
>> Chris
> 
> Replacing
> 
>>>> self.imagefiles = glob.glob(dirName + "/*.gif")
>>>> self.imagefiles = cycle(self.imagefiles)
> 
> with
> 
> self.imagefiles = image_cycler(os.path.join(dirname, "*.gif"))
> 
> where image_cycler() looks as follows
> 
> def image_cycler(pattern):
>    while True:
>        for fn in glob.glob(pattern):
>            yield fn
> 
> would be the simplest way.
> 
> Peter
> -- 
> http://mail.python.org/mailman/listinfo/python-list

Perfect!

Thank you