[HarfBuzz] Harfbuzz features and layout

[Behdad Esfahbod]

Hi Edu,

If all you want is to render paragraph in a box, that's exactly what
PangoLayout is for.

Hope that helps,
behdad

On 14-07-30 05:58 PM, Edu García wrote:
> Thank you for both of your responses.
> 
> Steven: Thank you for the article! However, I'm still a bit confused, sorry.
> According to the article, Pango is not a good fit for web browsers or word
> processors. So I'm assuming my usecase (render text in this box and split it
> in lines) falls into that category? So that means I can't use Pango either?
> Sorry if this is obvious, but I'm having a hard time finding exactly what I
> need :).
> 
> Konstantin: according to Behdah "State of Text Rendering", "HarfBuzz, as an
> OpenType Layout engine, is where all the magic happens". And I also see a
> header called "hb-ot-layout.h", that I'm assuming is where the Freetype 2
> OpenType layout code moved, whatever that means, so that's where my confusion
> started.
> 
> Again, thank you for your responses!
> 
> 
> On Thu, Jul 31, 2014 at 7:47 AM, Konstantin Ritt <ritt.ks at gmail.com
> <mailto:ritt.ks at gmail.com>> wrote:
> 
>     From the official site: "HarfBuzz is an OpenType
>     <http://www.microsoft.com/OpenType/OTSpec/> text shaping engine."
>     Shaping != layout.
> 
>     So quick answer would be: "No, HarfBuzz can not do layout related tasks".
> 
>     Konstantin
> 
> 
>     2014-07-31 1:35 GMT+04:00 Edu García <arcnorj at gmail.com
>     <mailto:arcnorj at gmail.com>>:
> 
>         Thank you! What about the layout, can Harfbuzz do it?
> 
>         On Jul 30, 2014 9:07 PM, "Khaled Hosny" <khaledhosny at eglug.org
>         <mailto:khaledhosny at eglug.org>> wrote:
> 
>             On Wed, Jul 30, 2014 at 01:42:42PM +1000, Edu García wrote:
>             > Hi there,
>             >
>             > First of all, just let me say that Harfbuzz seems like an
>             awesome piece of
>             > engineering, and the API seems a breeze to use. I've done a very
>             simple
>             > example in just a few hours, and I'm very happy about that :).
>             >
>             > I have two (very noob, sorry) questions, tough:
>             >
>             > 1) I want to enable (or disable) ligatures. I've seen that when
>             using a
>             > font like Adobe Garamond Pro, ligatures are automatically used.
>             I thought I
>             > had to pass a feature to hb_shape() to do that? Also, is there
>             any way of
>             > enabling only some kind of ligatures, like historical ones?
> 
>             Some features are enabled by default, to you can disable default
>             features/enable non-default features by passing appropriate
>             hb_feature_t's to hb_shape_full().
> 
>             Regards,
>             Khaled
> 
> 
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> 
> 
> 
> 
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-- 
behdad
http://behdad.org/