pythoncard-users

[Pythoncard-users] How to redraw window in even handler?

[Christoph Z. <ci...@on...>]

Another question. I have an event handler basically like this one:

     def on_button_mouseClick(self, event):
	make component xyz visible
         self.SetCursor(wxHOURGLASS_CURSOR)
         do something that takes some time
         self.SetCursor(wxSTANDARD_CURSOR)

Changing the mouse cursor works fine, but not making component xyz 
visible (it will be only visible after the long operation when the event 
is left again). How can I force PythonCard to redraw the component 
immediately, so that it is visible already during the long operation?

Any help is appreciated.

-- Christoph

Re: [Pythoncard-users] How to redraw window in even handler?

[Steve C. <stn...@xm...>]

> Another question. I have an event handler basically like this one:
> 
>     def on_button_mouseClick(self, event):
> 	make component xyz visible
>         self.SetCursor(wxHOURGLASS_CURSOR)
>         do something that takes some time
>         self.SetCursor(wxSTANDARD_CURSOR)
> 
> Changing the mouse cursor works fine, but not making component xyz 
> visible (it will be only visible after the long operation when the event 
> is left again). How can I force PythonCard to redraw the component 
> immediately, so that it is visible already during the long operation?
> 
> Any help is appreciated.

Try wx.Yield()


-Steve

Re: Re: [Pythoncard-users] How to redraw window in even handler?

[Christoph Z. <ci...@on...>]

Steve Christensen wrote:
>> How can I force PythonCard to redraw the component 
>> immediately, so that it is visible already during the long operation?
> 
> Try wx.Yield()

Thanks, that was exactly what I was missing. I just saw the wx docu says 
it's better to use self.application.Yield() in newer programs. This has 
also the advantage that I don't need to import wx in my PythonCard app.

-- Christoph

Re: [Pythoncard-users] How to redraw window in even handler?

[Alex T. <al...@tw...>]

Christoph Zwerschke wrote:

> Steve Christensen wrote:
>
>>> How can I force PythonCard to redraw the component immediately, so 
>>> that it is visible already during the long operation?
>>
>>
>> Try wx.Yield()
>
>
> Thanks, that was exactly what I was missing. I just saw the wx docu 
> says it's better to use self.application.Yield() in newer programs. 
> This has also the advantage that I don't need to import wx in my 
> PythonCard app.


There's nothing terrible about "import wx"; in fact, it's much better to 
have that than the "from wx import *" that you presumably have right now 
to allow the use of
   self.SetCursor(wxHOURGLASS_CURSOR)

It would be a good thing to change that to
  import wx
and do
   self.SetCursor(wx.HOURGLASS_CURSOR)

Not important - but a good practice to follow.



-- 
Alex Tweedly       http://www.tweedly.net



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Re: [Pythoncard-users] How to redraw window in even handler?

[Christoph Z. <ci...@on...>]

Alex Tweedly wrote:
> There's nothing terrible about "import wx"; in fact, it's much better to 
> have that than the "from wx import *" that you presumably have right now 
> to allow the use of
>   self.SetCursor(wxHOURGLASS_CURSOR)
> 
> It would be a good thing to change that to
>  import wx
> and do
>   self.SetCursor(wx.HOURGLASS_CURSOR)
> 
> Not important - but a good practice to follow.

Thanks for pointing that out. You're right.

-- Christoph