a47f658855
Interestingly, this can handle the examples from the AAT specification (which are part of the unit tests), and also most AAT fonts on my disk. However, some other AAT fonts such as Apple Chancery cannot be decompiled. The failure seems to be a general problem with how fonttools decompiles AAT lookups of format 4, and unrelated to this present change.
119 lines
4.3 KiB
Python
119 lines
4.3 KiB
Python
from __future__ import print_function, division, absolute_import, unicode_literals
|
|
from fontTools.misc.py23 import *
|
|
from fontTools.misc.testTools import FakeFont, getXML, parseXML
|
|
from fontTools.misc.textTools import deHexStr, hexStr
|
|
from fontTools.ttLib import newTable
|
|
import unittest
|
|
|
|
|
|
# Example: Format 0 Optical Bounds Table
|
|
# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6opbd.html
|
|
OPBD_FORMAT_0_DATA = deHexStr(
|
|
'0001 0000 0000 ' # 0: Version=1.0, Format=0
|
|
'0006 0004 0002 ' # 6: LookupFormat=6, UnitSize=4, NUnits=2
|
|
'0008 0001 0000 ' # 12: SearchRange=8, EntrySelector=1, RangeShift=0
|
|
'000A 001E ' # 18: Glyph=10(=C), OffsetOfOpticalBoundsDeltas=30
|
|
'002B 0026 ' # 22: Glyph=43(=A), OffsetOfOpticalBoundsDeltas=38
|
|
'FFFF 0000 ' # 26: Glyph=<end>, OffsetOfOpticalBoundsDeltas=0
|
|
'FFCE 0005 0037 FFFB ' # 30: Bounds[C].Left=-50 .Top=5 .Right=55 .Bottom=-5
|
|
'FFF6 000F 0000 0000 ' # 38: Bounds[A].Left=-10 .Top=15 .Right=0 .Bottom=0
|
|
) # 46: <end>
|
|
assert(len(OPBD_FORMAT_0_DATA) == 46)
|
|
|
|
|
|
OPBD_FORMAT_0_XML = [
|
|
'<Version value="0x00010000"/>',
|
|
'<OpticalBounds Format="0">',
|
|
' <OpticalBoundsDeltas>',
|
|
' <Lookup glyph="A">',
|
|
' <Left value="-10"/>',
|
|
' <Top value="15"/>',
|
|
' <Right value="0"/>',
|
|
' <Bottom value="0"/>',
|
|
' </Lookup>',
|
|
' <Lookup glyph="C">',
|
|
' <Left value="-50"/>',
|
|
' <Top value="5"/>',
|
|
' <Right value="55"/>',
|
|
' <Bottom value="-5"/>',
|
|
' </Lookup>',
|
|
' </OpticalBoundsDeltas>',
|
|
'</OpticalBounds>',
|
|
]
|
|
|
|
|
|
# Example: Format 1 Optical Bounds Table
|
|
# https://developer.apple.com/fonts/TrueType-Reference-Manual/RM06/Chap6opbd.html
|
|
OPBD_FORMAT_1_DATA = deHexStr(
|
|
'0001 0000 0001 ' # 0: Version=1.0, Format=1
|
|
'0006 0004 0002 ' # 6: LookupFormat=6, UnitSize=4, NUnits=2
|
|
'0008 0001 0000 ' # 12: SearchRange=8, EntrySelector=1, RangeShift=0
|
|
'000A 001E ' # 18: Glyph=10(=C), OffsetOfOpticalBoundsPoints=30
|
|
'002B 0026 ' # 22: Glyph=43(=A), OffsetOfOpticalBoundsPoints=38
|
|
'FFFF 0000 ' # 26: Glyph=<end>, OffsetOfOpticalBoundsPoints=0
|
|
'0024 0025 0026 0027 ' # 30: Bounds[C].Left=36 .Top=37 .Right=38 .Bottom=39
|
|
'0020 0029 FFFF FFFF ' # 38: Bounds[A].Left=32 .Top=41 .Right=-1 .Bottom=-1
|
|
) # 46: <end>
|
|
assert(len(OPBD_FORMAT_1_DATA) == 46)
|
|
|
|
|
|
OPBD_FORMAT_1_XML = [
|
|
'<Version value="0x00010000"/>',
|
|
'<OpticalBounds Format="1">',
|
|
' <OpticalBoundsPoints>',
|
|
' <Lookup glyph="A">',
|
|
' <Left value="32"/>',
|
|
' <Top value="41"/>',
|
|
' <Right value="-1"/>',
|
|
' <Bottom value="-1"/>',
|
|
' </Lookup>',
|
|
' <Lookup glyph="C">',
|
|
' <Left value="36"/>',
|
|
' <Top value="37"/>',
|
|
' <Right value="38"/>',
|
|
' <Bottom value="39"/>',
|
|
' </Lookup>',
|
|
' </OpticalBoundsPoints>',
|
|
'</OpticalBounds>',
|
|
]
|
|
|
|
|
|
class OPBDTest(unittest.TestCase):
|
|
|
|
@classmethod
|
|
def setUpClass(cls):
|
|
cls.maxDiff = None
|
|
glyphs = ['.notdef'] + ['X.alt%d' for g in range(1, 50)]
|
|
glyphs[10] = 'C'
|
|
glyphs[43] = 'A'
|
|
cls.font = FakeFont(glyphs)
|
|
|
|
def test_decompile_toXML_format0(self):
|
|
table = newTable('opbd')
|
|
table.decompile(OPBD_FORMAT_0_DATA, self.font)
|
|
self.assertEqual(getXML(table.toXML), OPBD_FORMAT_0_XML)
|
|
|
|
def test_compile_fromXML_format0(self):
|
|
table = newTable('opbd')
|
|
for name, attrs, content in parseXML(OPBD_FORMAT_0_XML):
|
|
table.fromXML(name, attrs, content, font=self.font)
|
|
self.assertEqual(hexStr(table.compile(self.font)),
|
|
hexStr(OPBD_FORMAT_0_DATA))
|
|
|
|
def test_decompile_toXML_format1(self):
|
|
table = newTable('opbd')
|
|
table.decompile(OPBD_FORMAT_1_DATA, self.font)
|
|
self.assertEqual(getXML(table.toXML), OPBD_FORMAT_1_XML)
|
|
|
|
def test_compile_fromXML_format1(self):
|
|
table = newTable('opbd')
|
|
for name, attrs, content in parseXML(OPBD_FORMAT_1_XML):
|
|
table.fromXML(name, attrs, content, font=self.font)
|
|
self.assertEqual(hexStr(table.compile(self.font)),
|
|
hexStr(OPBD_FORMAT_1_DATA))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
import sys
|
|
sys.exit(unittest.main())
|