https://bugs.documentfoundation.org/show_bug.cgi?id=106466
Bug ID: 106466
Summary: Graphite font features cannot be activated on Mac OS X
if the font also contains AAT tables
Product: LibreOffice
Version: 5.3.0.3 release
Hardware: x86-64 (AMD64)
OS: Mac OS X (All)
Status: UNCONFIRMED
Severity: normal
Priority: medium
Component: UI
Assignee: [email protected]
Reporter: [email protected]
Description:
Graphite font features in the "Khmer Busra Bunong" font (attached) work fine in
LO 5.3 on Windows and Linux but are not activated on macOS Sierra 10.12.3 (see
screenshots). I'm guessing that this is because the font includes both graphite
and AAT tables, but I haven't confirmed this.
LO 5.3 includes a new cross-platform text layout engine which supports Graphite
and OpenType Font Features on all platforms.
(https://wiki.documentfoundation.org/ReleaseNotes/5.3#Text_Layout)
Enabling graphite font features in Charis SIL font works on all platforms.
(http://software.sil.org/charis/support/smart-font-features/) as does Libertine
G (http://www.numbertext.org/linux/fontfeatures.pdf).
The Khmer Busra Bunong font (attached) contains both graphite and AAT tables.
Bug 105516, comment 1 states that Graphite or AAT takes precedence over
OpenType but it appears here that AAT is taking precedence over graphite. This
is problematic because it causes different rendering on different platforms. I
think I would prefer that Graphite take precedence over AAT.
Reproducible: Always
User Profile Reset: Yes
Additional Info:
Related Bugs:
Bug 58941 and bug 105710 are discussions about implementing a GUI control for
enabling OpenType or graphite features.
Bug 71732 (Font-Rendering) - [META] Bugs related to text rendering, typography
and font features in LO
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_3) AppleWebKit/602.4.8
(KHTML, like Gecko) Version/10.0.3 Safari/602.4.8
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