I said:
> > Anybody know how that's done?
Albrecht replied:
> Not directly, but this trick should do it:
>
> unsigned rgb = (unsigned)fl_color_average((Fl_Color)i,
> FL_WHITE, 1.0);
>
> r = rgb>> 24 & 255;
> g = rgb>> 16 & 255;
> b = rgb>> 8 & 255;
>
> i can be any color (index or RGB value).
> FL_WHITE can be replaced with any color.
Oh - that's quite sneaky though! I had not thought of that, but that
should work.
Does seem like there ought to be a more direct method though, I think -
what do others feel about this?
Some sort of (caution, more untested psuedo-code...)
void fl_get_rgb_from_color(Fl_Color c, uchar &r, uchar &g, uchar &b) {
if(c & 0xffffff00){
r = (c >> 24) & 0xFF;
g = (c >> 16) & 0xFF;
b = (c >> 8) & 0xFF;
}
else {
unsigned rgb = fl_cmap[(c & 0xFF)];
r = (rgb >> 24) & 0xFF;
g = (rgb >> 16) & 0xFF;
b = (rgb >> 8) & 0xFF;
}
}
This would go in fl_color.c I guess? Not actually tested this though...
--
Ian
SELEX Galileo Ltd
Registered Office: Sigma House, Christopher Martin Road, Basildon, Essex SS14
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