Re: [Visualpython-users] color-changing buttons

[Lenore H. <lh...@si...>]

Ahah.  I tried calling b.color not b.button.color.
Thanks
Lenore

On Sep 13, 2009, at 09:27 , Bruce Sherwood wrote:

> Sigh. That module definitely needs work. If you look at controls.py
> you'll see that a button is constructed from 5 boxes and a label.  
> Until
> and unless the controls module is improved, the only way to achieve  
> the
> desired effect is to change these individual elements (e.g.
> buttonname.button.color = something). Ugh. Obviously a better scheme
> would be to change the button class to honor all desired changes, but
> here's a specific example within the present framework:
>
> from visual.controls import *
>
> s = True
>
> def switch():
>     global s
>     if s:
>         b.text = "Off"
>         b.button.color = color.cyan
>     else:
>         b.text = "On"
>         b.button.color = color.red
>     s = not s
>
> c = controls()
> b = button(text="On", color=color.red, action=lambda: switch())
> while 1:
>     rate(100)
>     c.interact()
>
> Bruce Sherwood
>
> Lenore Horner wrote:
>> I'd like my buttons to change colors when they've received a button
>> press.  I can get an apparent color change by recreating the button.
>> However, if I change the text , I see both texts stacked on top of
>> each other, so I think I'm just piling up the buttons.  I've tried  
>> using
>>
>> buttonname.color=color.newcolor
>>
>> without success.  I have tried
>>
>> buttonname.visible=False
>> del buttonname
>>
>> and the button doesn't disappear.
>>
>> So in general it's looking to me like buttons don't behave the way
>> ordinary objects do.  Is this correct?
>>
>> Lenore
>>
>>
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