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List:       kde-devel
Subject:    Re: Color Palette Nits
From:       Matthew Woehlke <mw_triad () users ! sourceforge ! net>
Date:       2008-06-24 20:16:39
Message-ID: g3rkn8$ji0$1 () ger ! gmane ! org
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Percy Camilo Triveņo Aucahuasi wrote:
> Maybe here the solution is draw the expanders with the oposite color of
> window background, but i don't know if kcolorutils have a luminance
> function, I think that have only luma fuction (perhaps luma function can
> solve the problem).

Aside from David's comment (which is right), what is "luminance"? :-)
KColorUtils::luma returns the 'apparent brightness' of a color (white is 
1.0, black is 0.0, anything else is somewhere in-between). More 
technically, it returns the Y' component of the color's H'C'Y' 
colorspace representation.

The doc[1] should do a reasonable job explaining this; if not please let 
me know so it can be improved.

1: 
http://api.kde.org/4.0-api/kdelibs-apidocs/kdeui/html/namespaceKColorUtils.html

-- 
Matthew
Anonymous: I want the following [software] features:
Rex Dieter: ...and a pony. Can't forget the pony. (Ones with frickin' 
laser beams a bonus.)

 
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