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Merge pull request #2082 from justvanrossum/gvar-ignore-empty-glyphs

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[varLib] Interpret empty non-default glyphs as 'missing'
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Just van Rossum 2020-11-02 18:19:09 +01:00 committed by GitHub
commit 0ae6951b3b
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1 changed files with 10 additions and 0 deletions
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10
Lib/fontTools/varLib/__init__.py
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@ -220,6 +220,7 @@ def _add_gvar(font, masterModel, master_ttfs, tolerance=0.5, optimize=True):
assert "gvar" not in font
gvar = font["gvar"] = newTable('gvar')
glyf = font['glyf']
defaultMasterIndex = masterModel.reverseMapping[0]
# use hhea.ascent of base master as default vertical origin when vmtx is missing
baseAscent = font['hhea'].ascent
@ -231,6 +232,15 @@ def _add_gvar(font, masterModel, master_ttfs, tolerance=0.5, optimize=True):
m["glyf"].getCoordinatesAndControls(glyph, m, defaultVerticalOrigin=baseAscent)
for m in master_ttfs
]
if allData[defaultMasterIndex][1].numberOfContours != 0:
# If the default master is not empty, interpret empty non-default masters
# as missing glyphs from a sparse master
allData = [
d if d is not None and d[1].numberOfContours != 0 else None
for d in allData
]
model, allData = masterModel.getSubModel(allData)
allCoords = [d[0] for d in allData]