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colorLib: let clipBoxes contain more glyphs than colorGlyphs, helps with sparse variable builds

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This commit is contained in:
Cosimo Lupo 2022-07-04 16:53:16 +01:00
parent eb00e499c0
commit 3b0769b519
2 changed files with 3 additions and 4 deletions
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3
Lib/fontTools/colorLib/builder.py
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@ -248,9 +248,6 @@ def buildCOLR(
if version == 0:
self.ColorLayers = self._decompileColorLayersV0(colr)
else:
clipBoxes = {
name: clipBoxes[name] for name in clipBoxes or {} if name in colorGlyphsV1
}
colr.ClipList = buildClipList(clipBoxes) if clipBoxes else None
colr.VarIndexMap = varIndexMap
colr.VarStore = varStore

4
Tests/colorLib/builder_test.py
View File

@ -1678,7 +1678,7 @@ class BuildCOLRTest(object):
clipBoxes={
"a": (0, 0, 1000, 1000, 0), # optional 5th: varIndexBase
"c": (-100.8, -200.4, 1100.1, 1200.5), # floats get rounded
"e": (0, 0, 10, 10), # missing base glyph 'e' is ignored
"e": (0, 0, 10, 10), # 'e' does _not_ get ignored despite being missing
},
)
@ -1689,9 +1689,11 @@ class BuildCOLRTest(object):
] == [
("a", (0, 0, 1000, 1000, 0)),
("c", (-101, -201, 1101, 1201)),
("e", (0, 0, 10, 10)),
]
assert clipBoxes["a"].Format == 2
assert clipBoxes["c"].Format == 1
assert clipBoxes["e"].Format == 1
def test_duplicate_base_glyphs(self):
# If > 1 base glyphs refer to equivalent list of layers we expect them to share