On Wed, Oct 29, 2003 at 03:19:17PM -0500, Thomas Dickey wrote: > > > at the moment I'm only interested in bug-fixes (not changing configuration > > > around). As it's setup now, I think that a user can easily turn on the > > > locale feature and experiment with it. (I just got some negative feedback > > > regarding the blue/Dodger blue resource change - have to keep things from > > > getting out of hand ;-) > > > > Yeah, people yelled at me about that too, but I stood my ground. > > it would be nice if I could (somehow) make the color map adapt dynamically > to make everything get good contrast. Even the example that I got in > feedback was still more readable than the darker blue on black. (Bear in > mind that when I setup color resources in 1996/1997, the choice was for > names that were present in X11R5 and X11R6 rgb.txt, since I didn't trust > the numeric specifiers - and I was usually making white backgrounds).
I don't know much about colorspace stuff, but I wonder if the text color
values could be converted to HVC (Hue/Value/Chroma) internally, compared
to the HVC value of the background, a useful adjustment made in that
space, and the text colors remapped.
I am wondering if it is this simple:
The background color is likely to have a V of close to 0 or close to 1.
(Most people have either very light or very dark backgrounds.)
For each text color,
If background V is close to 0:
If text color V is < 0.5, set it to 1.0 - V.
If text color V is > 0.5, leave it alone.
If background V is close to 1:
If text color V is < 0.5, leave it alone.
If text color V is > 0.5, set it to 1.0 - V.
A computer graphics professional, or anyone who actually understands
colorspaces, should be able to see any awful flaws in this immediately.
--
G. Branden Robinson | The best place to hide something is
Debian GNU/Linux | in documentation.
[EMAIL PROTECTED] | -- Ethan Benson
http://people.debian.org/~branden/ |
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