IIRC, what's suggested by Ed was one of options we presented to our Thai speaking reviewers along with what we currently have in Noto Sans Thai UI [1]. Our reviewers preferred the current way of dealing with a vertical metric constraint to what Ed suggested (squishing glyphs).
We'll double check our record. Jungshik [1] note that 'Noto Sans Thai' (for body/document) does not have this issue. It's only 'Noto Sans Thai UI' that had to come up with a "novel" solution On Tue, Nov 11, 2014 at 11:00 AM, Roozbeh Pournader <rooz...@google.com> wrote: > With the latest HarfBuzz and Noto Sans Thai, I'm seeing the result I'm > attaching, which appears correct to me (and the same as Android Kitkat > result you've attached). > > But I see the same as what you are seeing on Android Lollipop. So this > appears to be a bug somewhere in Android rather than HarfBuzz or Noto Sans. > > Please file a bug at https://source.android.com/source/report-bugs.html > and send us a link to it. Thanks. > > On Tue, Nov 11, 2014 at 8:59 AM, Ed Trager <ed.tra...@gmail.com> wrote: > >> Hi, >> >> To the best of my knowledge, it seems extremely unlikely that U+0E0E THAI >> CHARACTER DO CHADA would have U+0E39 THAI CHARACTER SARA UU ( or U+0E38 >> THAI CHARACTER SARA U for that matter ) appear below it. >> >> I can't think of any Central Thai words that would have that kind of >> spelling; and it seems even more unlikely that any of the minority >> languages would use DO CHADA at all. >> >> Therefore, it seems very likely that the font designers did not specify >> an anchoring position point for SARA U or SARA UU appearing below >> consonants such as DO CHADA or U+0E0F THAI CHARACTER TO PATAK. >> >> - Ed >> >> >> On Mon, Nov 10, 2014 at 10:16 PM, Nguyễn Đức An <annd1...@gmail.com> >> wrote: >> >>> Dear Harfbuzz developers, >>> We have an issue with Thai text render in Android L. When input U+0E0E >>> and U+0E39, it displays wrong (please see the attach screen). >>> I checked Thai Noto font (Google font) and Samsung Thai (Samsung font), >>> issue happens with both of them. >>> As i read the source of Harfbuzz, Thai reshaping only does separate SARA >>> AM to NIKHAHIT & SARAA. So maybe the problem is not came from Harfbuzz. >>> Any help is welcome. >>> Thank you. >>> >>> _______________________________________________ >>> HarfBuzz mailing list >>> HarfBuzz@lists.freedesktop.org >>> http://lists.freedesktop.org/mailman/listinfo/harfbuzz >>> >>> >> >> _______________________________________________ >> HarfBuzz mailing list >> HarfBuzz@lists.freedesktop.org >> http://lists.freedesktop.org/mailman/listinfo/harfbuzz >> >> > > _______________________________________________ > HarfBuzz mailing list > HarfBuzz@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/harfbuzz > >
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