WIP: Implement STAT table
This commit is contained in:
Sascha Brawer
Behdad Esfahbod
parent
289fd62d8f
commit
59368c424a
@ -21,6 +21,7 @@ def parseXML(xmlSnippet):
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class FakeFont:
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class FakeFont:
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def __init__(self, glyphs):
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def __init__(self, glyphs):
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self.glyphOrder_ = glyphs
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self.glyphOrder_ = glyphs
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self.lazy = False
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def getGlyphID(self, name):
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def getGlyphID(self, name):
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return self.glyphOrder_.index(name)
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return self.glyphOrder_.index(name)
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7
Lib/fontTools/ttLib/tables/S_T_A_T_.py
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7
Lib/fontTools/ttLib/tables/S_T_A_T_.py
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@ -0,0 +1,7 @@
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from __future__ import print_function, division, absolute_import
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from fontTools.misc.py23 import *
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from .otBase import BaseTTXConverter
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class table_S_T_A_T_(BaseTTXConverter):
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pass
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165
Lib/fontTools/ttLib/tables/S_T_A_T_test.py
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165
Lib/fontTools/ttLib/tables/S_T_A_T_test.py
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@ -0,0 +1,165 @@
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from __future__ import print_function, division, absolute_import
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from fontTools.misc.py23 import *
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from fontTools.misc.testTools import FakeFont, getXML, parseXML
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from fontTools.misc.textTools import deHexStr
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from fontTools.ttLib import getTableModule, newTable
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import unittest
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STAT_DATA = deHexStr(
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'0001 0000 ' # 0: Version=1.0
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'0008 0002 ' # 4: DesignAxisSize=8, DesignAxisCount=2
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'0000 0012 ' # 8: OffsetToDesignAxes=18
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'0003 0000 0022 ' # 12: AxisValueCount=3, OffsetToAxisValueOffsets=34
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'7767 6874 ' # 18: DesignAxis[0].AxisTag='wght'
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'012D 0002 ' # 22: DesignAxis[0].NameID=301, .AxisOrdering=2
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'5445 5354 ' # 26: DesignAxis[1].AxisTag='TEST'
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'012E 0001 ' # 30: DesignAxis[1].NameID=302, .AxisOrdering=1
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'0006 001C 0034 ' # 34: AxisValueOffsets = [6, TODO, TODO] (+34)
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'0001 0000 0000 ' # 40: AxisValue[0].Format=1, .AxisIndex=0, .Flags=0
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'0191 0190 0000 ' # 46: AxisValue[0].ValueNameID=401, .Value=400.0
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'0002 0001 0000 ' # 52: AxisValue[1].Format=2, .AxisIndex=1, .Flags=0
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'0192 ' # 58: AxisValue[1].ValueNameID=402
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'0002 0000 ' # 60: AxisValue[1].NominalValue=2.0
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'0001 0000 ' # 64: AxisValue[1].RangeMinValue=1.0
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'0003 0000 ' # 68: AxisValue[1].RangeMaxValue=3.0
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'0003 0000 0000 ' # 72: AxisValue[2].Format=3, .AxisIndex=0, .Flags=0
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'0190 0000 02BC 0000 ' # 78: AxisValue[2].Value=400.0, .LinkedValue=700.0
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) # 86: <end>
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assert(len(STAT_DATA) == 86)
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# Contains junk data for making sure we get our offset decoding right.
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# This is an entirely valid STAT table, just more verbose than the minimum.
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STAT_DATA_WITH_JUNK = deHexStr(
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'0001 0000 ' # 0: Version=1.0
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'000C 0002 ' # 4: DesignAxisSize=12, DesignAxisCount=2
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'0000 0016 ' # 8: OffsetToDesignAxes=22
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'0003 0000 002E ' # 12: AxisValueCount=3, OffsetToAxisValueOffsets=46
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'DEAD BEEF ' # 18: <junk>
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'7767 6874 ' # 22: DesignAxis[0].AxisTag='wght'
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'012D 0002 ' # 26: DesignAxis[0].NameID=301, .AxisOrdering=2
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'DEAD BEEF ' # 30: <junk>
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'5445 5354 ' # 34: DesignAxis[1].AxisTag='TEST'
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'012E 0001 ' # 38: DesignAxis[1].NameID=302, .AxisOrdering=1
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'DEAD BEEF ' # 42: <junk>
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'000C 001C 0034 ' # 46: AxisValueOffsets = [12, 28, 52] (+46)
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'DEAD BEEF DEAD ' # 52: <junk>
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'0001 0000 0000 ' # 58: AxisValue[0].Format=1, .AxisIndex=0, .Flags=0
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'0191 0190 0000 ' # 64: AxisValue[0].ValueNameID=401, .Value=400.0
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'DEAD BEEF ' # 70: <junk>
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'0002 0001 0000 ' # 74: AxisValue[1].Format=2, .AxisIndex=1, .Flags=0
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'0192 ' # 80: AxisValue[1].ValueNameID=402
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'0002 0000 ' # 82: AxisValue[1].NominalValue=2.0
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'0001 0000 ' # 86: AxisValue[1].RangeMinValue=1.0
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'0003 0000 ' # 86: AxisValue[1].RangeMaxValue=3.0
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'DEAD BEEF ' # 94: <junk>
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'0003 0000 0000 ' # 98: AxisValue[2].Format=3, .AxisIndex=0, .Flags=0
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'0190 0000 02BC 0000 ' # 104: AxisValue[2].Value=400.0, .LinkedValue=700.0
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) # 112: <end>
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assert(len(STAT_DATA_WITH_JUNK) == 112)
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STAT_XML = (
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'<Version value="0x00010000"/>'
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'<!-- DesignAxisRecordSize=12 -->'
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'<!-- DesignAxisCount=2 -->'
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'<DesignAxis index="0">'
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' <AxisTag value="wght"/>'
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' <AxisNameID value="301"/>'
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' <AxisOrdering value="2"/>'
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'</DesignAxis>'
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'<DesignAxis index="1">'
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' <AxisTag value="TEST"/>'
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' <AxisNameID value="302"/>'
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' <AxisOrdering value="1"/>'
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'</DesignAxis>'
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'<!-- AxisValueCount=3 -->'
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'<AxisValue index="0">'
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' <Format value="1"/">'
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' <AxisIndex value="0"/">'
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' <Flags value="0x0"/">'
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' <ValueNameID value="401"/">'
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' <Value value="400.0"/">'
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'</AxisValue>'
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'<AxisValue index="1">'
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' <Format value="2"/">'
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' <AxisIndex value="1"/">'
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' <Flags value="0x0"/">'
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' <ValueNameID value="402"/">'
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' <NominalValue value="2.0"/">'
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' <RangeMinValue value="1.0"/">'
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' <RangeMaxValue value="3.0"/">'
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'</AxisValue>'
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'<AxisValue index="2">'
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' <Format value="3"/">'
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' <AxisIndex value="0"/">'
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' <Flags value="0x0"/">'
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' <Value value="400.0"/">'
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' <LinkedValue value="700.0"/">'
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'</AxisValue>'
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)
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STAT_DATA_AXIS_VALUE_FORMAT3 = deHexStr(
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'0001 0000 ' # 0: Version=1.0
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'0008 0001 ' # 4: DesignAxisSize=8, DesignAxisCount=1
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'0000 0012 ' # 8: OffsetToDesignAxes=18
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'0001 ' # 12: AxisValueCount=1
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'0000 001A ' # 14: OffsetToAxisValueOffsets=26
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'7767 6874 ' # 18: DesignAxis[0].AxisTag='wght'
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'0102 ' # 22: DesignAxis[0].AxisNameID=258 'Weight'
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'0000 ' # 24: DesignAxis[0].AxisOrdering=0
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'0002 ' # 26: AxisValueOffsets=[2] (+26)
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'0003 ' # 28: AxisValue[0].Format=3
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'0000 0002 ' # 30: AxisValue[0].AxisIndex=0, .Flags=0x2
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'0002 ' # 34: AxisValue[0].ValueNameID=2 'Regular'
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'0190 0000 ' # 36: AxisValue[0].Value=400.0
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'02BC 0000 ' # 40: AxisValue[0].LinkedValue=700.0
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) # 44: <end>
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assert(len(STAT_DATA_AXIS_VALUE_FORMAT3) == 44)
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STAT_XML_AXIS_VALUE_FORMAT3 = (
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'<Version value="0x00010000"/>'
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'<!-- DesignAxisRecordSize=8 -->'
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'<!-- DesignAxisCount=1 -->'
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'<DesignAxis index="0">'
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' <AxisTag value="wght"/>'
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' <AxisNameID value="258"/>'
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' <AxisOrdering value="0"/>'
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'</DesignAxis>'
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'<!-- AxisValueCount=1 -->'
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'<AxisValue index="0">'
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' <Format value="3"/">'
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' <AxisIndex value="0"/">'
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' <Flags value="0x2"/">'
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' <Value value="400.0"/">'
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' <LinkedValue value="700.0"/">'
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'</AxisValue>'
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)
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class STATTest(unittest.TestCase):
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def test_decompile_toXML(self):
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table = newTable('STAT')
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table.decompile(STAT_DATA, font=FakeFont(['.notdef']))
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self.maxDiff = None
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self.assertEqual(getXML(table.toXML), STAT_XML)
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def test_decompile_toXML_withJunk(self):
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table = newTable('STAT')
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table.decompile(STAT_DATA_WITH_JUNK, font=FakeFont(['.notdef']))
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expected_xml = STAT_XML.replace('DesignAxisRecordSize=8',
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'DesignAxisRecordSize=12')
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self.assertEqual(getXML(table.toXML), expected_xml)
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def test_decompile_toXML_format3(self):
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table = newTable('STAT')
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table.decompile(STAT_DATA_AXIS_VALUE_FORMAT3,
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font=FakeFont(['.notdef']))
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self.assertEqual(getXML(table.toXML), STAT_XML_AXIS_VALUE_FORMAT3)
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if __name__ == '__main__':
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unittest.main()
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@ -23,7 +23,7 @@ def buildConverters(tableSpec, tableNamespace):
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if name.startswith("ValueFormat"):
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if name.startswith("ValueFormat"):
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assert tp == "uint16"
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assert tp == "uint16"
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converterClass = ValueFormat
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converterClass = ValueFormat
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elif name.endswith("Count") or name.endswith("LookupType"):
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elif name.endswith("Count") or name.endswith("LookupType") or name.endswith("RecordSize"):
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assert tp in ("uint16", "uint32")
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assert tp in ("uint16", "uint32")
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converterClass = ComputedUShort if tp == 'uint16' else ComputedULong
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converterClass = ComputedUShort if tp == 'uint16' else ComputedULong
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elif name == "SubTable":
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elif name == "SubTable":
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@ -840,6 +840,23 @@ otData = [
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]),
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]),
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#
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# STAT
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#
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('STAT', [
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('Version', 'Version', None, None, 'Version of the table-initially set to 0x00010000'),
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('uint16', 'DesignAxisRecordSize', None, None, 'Size in bytes of each design axis record'),
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('uint16', 'DesignAxisCount', None, None, 'Number of design axis records'),
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('LOffsetToArray(AxisRecord)', 'DesignAxis', None, None, 'Offset in bytes from the beginning of the STAT table to the start of the design axes array'),
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('uint16', 'AxisValueCount', None, None, 'Number of axis value tables'),
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]),
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('AxisRecord', [
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('Tag', 'AxisTag', None, None, 'A tag identifying the axis of design variation'),
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('uint16', 'AxisNameID', None, None, 'The name ID for entries in the "name" table that provide a display string for this axis'),
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('uint16', 'AxisOrdering', None, None, 'A value that applications can use to determine primary sorting of face names, or for ordering of descriptors when composing family or face names'),
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]),
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#
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#
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# Variation fonts
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# Variation fonts
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#
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#
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