Re: Parsing of fontconfig font names and other font related stuff.

[Jan Djärv]

Kenichi Handa skrev:
> In article <address@hidden>, =?ISO-8859-1?Q?Jan_Dj=E4rv?= <address@hidden> 
> writes:

> > It would be nice to be able to use XftDefaultSubstitute to pick up the GConf 
> > settings from the X database (GConf puts them there).  But by the time the Xft 
> > driver has been choosen, the pixel size for the font has already been 
> > calculated, using another dpi-value.
>
> > How can we fix this?  Can we choose driver without calculating a pixel size?
>
> I think it's not that difficult of modify the current code
> to do that, but...
>
> > The fast but kind of ugly way would be to add the defaults from 
> > XftDefaultSubstitute to the name if it is an fcname and Xft is present.
>
> shouldn't the DPI value from GConf be reflected to (struct
> x_display_info).resy or (struct frame).resy?

I don't know.  Xft picks up its specific values from X defaults, and GConf 
puts them there.  So if we could use XftDefaultSubstitute we would get the 
GConf values without using GConf directly. Also, those values only makes sense 
for Xft fonts, so it isn't a general DPI-value for everything X does.
Then again, it seems to be used mostly for fonts in Emacs, I found one 
instance where it is used to calculate the size of an image.

I'll look in to it some more.

        Jan D.