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List:       pykde
Subject:    Re: [PyKDE] Problem with dynamic tooltip
From:       Phil Thompson <phil () river-bank ! demon ! co ! uk>
Date:       2001-11-30 18:51:19
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Donovan Rebbechi wrote:
> 
> On Wed, 28 Nov 2001, stsao wrote:
> 
> > Hi,
> >
> > Thanks to Donovan, the problem has been resolved.   Please see his reply
> > below.
> >
> > Donavan, were you able to see the other problem (background color color of
> > QMultiLineEdit not updated properly)?
> 
> Part of the problem is that you're overriding a virtual method marked
> "for internal use only". If you want to do this, it's a good idea to call
> the base class version from your override.

That's the right thing to do - it doesn't matter that it's marked for
internal use - you want to supplement the existing behaviour, not
replace it.

> I get the same behaviour here as you.
> 
> To fix it, you need to call  the same method in the base class. I don't
> know off the top of my head how to do that in python, so my brute force
> fix is to make another method, mysetBackgroundColor.
> 
> def mysetBackgroundColor(self, qColor):
>      palette = self.palette()
>      palette.setColor(QColorGroup.Base, qColor)
>      self.setPalette(palette)
>      self.setBackgroundColor(qColor)

Just call the superclass method explicitly like you do with ctors, ie...

     def setBackgroundColor(self, qColor):
         palette = self.palette()
         palette.setColor(QColorGroup.Base, qColor)
         self.setPalette(palette)
         QMultiLineEdit.setBackgroundColor(self, qColor)

Phil


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