On 15-10-26 04:21 PM, Simon Cozens wrote: > On 27/10/2015 00:37, Nikolay Sivov wrote: >> But probably more important is that this functionality doesn't seem >> to belong to harfbuzz in a first place, as it never needs global >> metrics internally (or does it?). > > No, it doesn't need these metrics internally. If Harfbuzz just sticks to > text shaping, then I agree that global font metric functions shouldn't > be there. On the other hand, if Harfbuzz wants to be providing the > information that layout engines need, then it absolutely should be able > to tell you about global font metrics. But in that sense, the recent > work on OT font functions isn't necessary either, because other > libraries easily provide this.
I agree with you. Also, HarfBuzz actually does need the ascent, for fallback vertical origin. See this function: https://github.com/behdad/harfbuzz/search?utf8=%E2%9C%93&q=guess_v_origin_minus_h_origin >> If you only need a couple of fields it's easy to get them manually >> from font blob. > > Eh, I don't know you about you but the reason I use libraries is to > abstract away this kind of low-level grubbing around... But yeah, > Freetype already does this. I just left it was a shame that something > already had my font open and already had an OpenType parser ready to go, > and it couldn't tell me what I wanted. +1. _______________________________________________ HarfBuzz mailing list HarfBuzz@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/harfbuzz
