[cairo] how to get text size ?

[Stefan Salewski]

On Fri, 2016-07-08 at 13:41 +0200, Enrico Weigelt, metux IT consult
wrote:
> Hi folks,
> 
> 
> how can I find out how much space some given piece of
> text needs on the surface ?
> 
> 

Maybe I miss something, but when I type "cairo text" in google I get
this proposal at the top

https://cairographics.org/manual/cairo-text.html#cairo-text-extents

There are related functions like

cairo_glyph_extents ()

and maybe pango functions -- generally we use pango for text rendering.