pythoncard-users

[Pythoncard-users] determining the source of generic event handlers

[<bra...@om...>]

I was glad to discover that generic event handlers such as 'on_closefield' 
(without the widget name) appear to be available in PythonCard, but I 
didn't see this in any documentation. I just gave it a try because that 
was how HyperCard worked. 

HyperCard had a function called "the target" which returned the name of 
the widget from which the event was originally generated. Is there any 
such equivalent method in PythonCard? 

I'd like to subclass model.Background with a class that could intercept 
and process events from all my various backgrounds. This could save me 
from having to define an individual event handler for every single widget, 
at least in cases where these widgets all have features in common. 

Thanks!

Re: [Pythoncard-users] determining the source of generic event handlers

[Liam C. <cy...@gm...>]

Here you go - 

def on_keyPress(self, event):
        #Get the object that was typed into
        eventSourceWidget = event.target

Just like Javascript DOM  : )

Regards, 


Liam Clarke

On Sat, 19 Mar 2005 18:25:37 -0600, bra...@om...
<bra...@om...> wrote:
>  
> I was glad to discover that generic event handlers such as 'on_closefield'
> (without the widget name) appear to be available in PythonCard, but I didn't
> see this in any documentation. I just gave it a try because that was how
> HyperCard worked. 
>  
> HyperCard had a function called "the target" which returned the name of the
> widget from which the event was originally generated. Is there any such
> equivalent method in PythonCard? 
>  
> I'd like to subclass model.Background with a class that could intercept and
> process events from all my various backgrounds. This could save me from
> having to define an individual event handler for every single widget, at
> least in cases where these widgets all have features in common. 
>  
> Thanks! 
> 
>  


-- 
'There is only one basic human right, and that is to do as you damn well please.
And with it comes the only basic human duty, to take the consequences.

Re: [Pythoncard-users] determining the source of generic event handlers

[<bra...@om...>]

The same as HyperCard, too. I should have guessed!

Thanks!


pyt...@li... wrote on 03/19/2005 06:41:53 
PM:

> Here you go - 
> 
> def on_keyPress(self, event):
>         #Get the object that was typed into
>         eventSourceWidget = event.target
> 
> Just like Javascript DOM  : )
> 
> Regards, 
> 
> 
> Liam Clarke
> 
> On Sat, 19 Mar 2005 18:25:37 -0600, bra...@om...
> <bra...@om...> wrote:
> > 
> > I was glad to discover that generic event handlers such as 
'on_closefield'
> > (without the widget name) appear to be available in PythonCard, but I 
didn't
> > see this in any documentation. I just gave it a try because that was 
how
> > HyperCard worked. 
> > 
> > HyperCard had a function called "the target" which returned the name 
of the
> > widget from which the event was originally generated. Is there any 
such
> > equivalent method in PythonCard? 
> > 
> > I'd like to subclass model.Background with a class that could 
intercept and
> > process events from all my various backgrounds. This could save me 
from
> > having to define an individual event handler for every single widget, 
at
> > least in cases where these widgets all have features in common. 
> > 
> > Thanks! 
> > 
> > 
> 
> 
> -- 
> 'There is only one basic human right, and that is to do as you damn 
> well please.
> And with it comes the only basic human duty, to take the consequences.
> 
> 
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