Re: pango in cairo?

On Mon, Jun 29, 2015 at 11:34:38PM -0400, Hendrik Boom [email protected] [ocaml_beginners] wrote:
> I've used cairo before.
> I'm having trouble figuring out how to ues pango.
> 
> I've found a whole lot of relatednfile on my system:
> 
> /usr/lib/ocaml/cairo/libmlpangocairo.a
> /usr/lib/ocaml/cairo/pango_cairo.a
> /usr/lib/ocaml/cairo/pango_cairo.cma
> /usr/lib/ocaml/cairo/pango_cairo.cmi
> /usr/lib/ocaml/cairo/pango_cairo.cmx
> /usr/lib/ocaml/cairo/pango_cairo.cmxa
> /usr/lib/ocaml/cairo/pango_cairo.mli
> 
> and the source code in
> 
>  /usr/lib/ocaml/lablgtk2/pango.ml
> 
> appears to define a lot of useful names.
> I have lots of ways to measure fonts and so forth.
> But I can't figure out how to actually draw text on a canvas.

Got a clue, anyway.  Pango has the function 
pango_cairo_show_glyph_string ()

Which might or might not correspond to the ocaml function

hendrik@notlookedfor:/usr/lib/ocaml/cairo$ grep glyph * | grep show
cairo.mli:external show_glyphs : t -> glyph array -> unit = "ml_cairo_show_glyphs"

I haven't yet found ml_cairo_show_glyphs. but it probably will 
turn out to be pango_cairo_show_glyph_string.

-- hendrik


> 
> Have I missed something online or on my Debian jessie machine?
> Google foind me a decde-old message decryinng the lack of pango support.
> And the code I foind suggests that matters are far, far better now.
> 
> Where should I be looking for examplees or documentation?
> 
> -- hendrik
> 
> 
> 
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> Posted by: Hendrik Boom <[email protected]>
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