58 lines
1.7 KiB
Python
58 lines
1.7 KiB
Python
from __future__ import print_function, division, absolute_import
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from fontTools import ttLib
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from fontTools.ttLib.tables import otTables as ot
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# VariationStore
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def buildVarAxis(axisTag, axisSupport):
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self = ot.VarAxis()
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self.VarAxisID = axisTag
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self.StartCoord, self.PeakCoord, self.EndCoord = axisSupport
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return self
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def buildVarTuple(support):
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self = ot.VarTuple()
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self.VarAxis = []
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for axisTag in sorted(support.keys()): # TODO order by axisIdx instead of tag?!
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self.VarAxis.append(buildVarAxis(axisTag, support[axisTag]))
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self.VarAxisCount = len(self.VarAxis)
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return self
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def buildVarTupleList(supports):
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self = ot.VarTupleList()
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self.VarTuple = []
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for support in supports:
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self.VarTuple.append(buildVarTuple(support))
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self.VarTupleCount = len(self.VarTuple)
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return self
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def buildVarDeltas(varTupleIndexes, items):
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self = ot.VarDeltas()
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self.format = 1 if all(all(128 <= delta <= 127 for delta in item) for item in items) else 2
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self.VarTupleIndex = list(varTupleIndexes)
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tupleCount = self.VarTupleCount = len(self.VarTupleIndex)
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records = self.Item = []
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for item in items:
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assert len(item) == tupleCount
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record = ot.VarItemByteRecord() if self.format == 1 else ot.VarItemShortRecord()
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record.deltas = list(item)
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records.append(record)
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self.ItemCount = len(self.Item)
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return self
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def buildVarStore(varTupleList, varDeltas):
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self = ot.VarStore()
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self.VarTupleList = varTupleList
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self.VarDeltas = varDeltas
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self.VarDeltasCount = len(self.VarDeltas)
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return self
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# Variation helpers
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def buildVarIdxMap(varIdxes):
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self = ot.VarIdxMap()
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self.VarIdx = varIdxes = list(varIdxes)
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self.VarIdxCount = len(self.VarIdx)
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self.Format = 1 if all(x <= 0xFFFF for x in varIdxes) else 2
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return self
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