[Fontconfig] Get width of each character.

[Lucien Gentis]

Hello Dheeraj,

I think fontconfig.h does not provide any function calculating string or 
character width.
But Xft.h does.
You extract pertinent data from your FcPattern like family, size, slant, 
weight and for you spacing which must be 0.
Then you open your font like this (example) :

XftFont * font=XftFontOpenName(display,screen,newFont);

where newFont could be "Liberation Sans-12:bold:roman:proportional"

You can now calculate the width of the character 'm' via this command :

XGlyphInfo glyphInfo;
XftTextExtentsUtf8 (display,font,"m",1,&glyphInfo);

glyphInfo.width contains the width of your character


Le 05/02/2020 à 10:48, Dheeraj Yadav a écrit :
> DheerajHi Akira,
> Thanks for the reply.
>
> I know it doesn't affect rendering but I am working on converting text 
> to pdf. So, I need to get the value of width of each character.
>
> Cheers
> Dheeraj
>
> On Wed, Feb 5, 2020, 2:58 PM Akira TAGOH <akira at tagoh.org 
> <mailto:akira at tagoh.org>> wrote:
>
>     On Wed, Feb 5, 2020 at 6:06 PM Dheeraj Yadav
>     <dhirajyadav135 at gmail.com <mailto:dhirajyadav135 at gmail.com>> wrote:
>     >
>     > Hello everyone,
>     > The font I am using has FC_SPACING set as PROPORTIONAL.
>     > So, Width of each character is different. I wanted to know, is
>     it possible to get width of each character for a particular font
>     in C i.e. using fontconfig.h ?
>
>     Even if you change a value in FC_SPACING property, that won't change
>     the feel of "Width of each character is different" because that is the
>     reason why it was PROPORTIONAL. that is just a cache from a font to
>     query a best font against a request. that won't affect the rendering
>     directly.
>
>     >
>     > Thank you for your time.
>     >
>     > Cheers
>     > Dheeraj
>     > _______________________________________________
>     > Fontconfig mailing list
>     > Fontconfig at lists.freedesktop.org
>     <mailto:Fontconfig at lists.freedesktop.org>
>     > https://lists.freedesktop.org/mailman/listinfo/fontconfig
>
>
>
>     -- 
>     Akira TAGOH
>
>
> _______________________________________________
> Fontconfig mailing list
> Fontconfig at lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/fontconfig
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/fontconfig/attachments/20200205/6a3b7e2a/attachment.htm>