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[varLib] Allow sparse masters when merging hinting

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Part of https://github.com/googlei18n/fontmake/issues/88
Part of https://github.com/fonttools/fonttools/issues/1355
This commit is contained in:
Behdad Esfahbod 2018-11-07 22:41:31 -05:00
parent 1527bb8afc
commit 40a5fb0808
1 changed files with 2 additions and 1 deletions
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3
Lib/fontTools/varLib/__init__.py
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@ -374,7 +374,7 @@ def _merge_TTHinting(font, model, master_ttfs, tolerance=0.5):
all_pgms = [
m["glyf"][name].program
for m in master_ttfs
if hasattr(m["glyf"][name], "program")
if name in m['glyf'] and hasattr(m["glyf"][name], "program")
]
if not any(all_pgms):
continue
@ -385,6 +385,7 @@ def _merge_TTHinting(font, model, master_ttfs, tolerance=0.5):
font_pgm = Program()
if any(pgm != font_pgm for pgm in all_pgms if pgm):
log.warning("Masters have incompatible glyph programs in glyph '%s', hinting is discarded." % name)
# TODO Only drop hinting from this glyph.
_remove_TTHinting(font)
return