Juergen Spitzmueller wrote:
>> Store the R,G,B triple...
>
> This is also what I had in mind, actually. But due to my well-known
> ignorance, it didn't know how this can be done technically (and what color
> format LyX uses).
>
LyX currently stores an 'X11 colour name' in LColor.[Ch]. Fortunately, you
can generate it from the R,G,B triple... This code is currently in
FormPreferences.C. Move it into Color.[Ch] and move these files into
support.
string const X11hexname(RGBColor const & col)
{
ostringstream ostr;
ostr << '#' << std::setbase(16) << setfill('0')
<< setw(2) << col.r
<< setw(2) << col.g
<< setw(2) << col.b;
return STRCONV(ostr.str());
}
These functions should make reading and writing an RGB color to file simple
ostream & operator<<(ostream & os, RGBColor const & col)
{
os << col.r << RGBColor::seperator
<< col.g << RGBColor::seperator
<< col.b;
return os;
}
istream & operator>>(istream & is, RGBColor & col)
{
// You'll have to set std::ws() so that it knows about
// RGBColor::seperator. Anyone?
is >> col.r >> std::ws()
>> col.g >> std::ws()
>> col.b;
return is;
}
--
Angus
