def decompile(self, data, ttFont):
# Get the version but don't advance the slice.
# Most of the lookup for this table is done relative
# to the begining so slice by the offsets provided
# in the EBLC table.
sstruct.unpack2(ebdtTableVersionFormat, data, self)
# Keep a dict of glyphs that have been seen so they aren't remade.
# This dict maps intervals of data to the BitmapGlyph.
glyphDict = {}
# Pull out the EBLC table and loop through glyphs.
# A strike is a concept that spans both tables.
# The actual bitmap data is stored in the EBDT.
locator = ttFont[self.__class__.locatorName]
self.strikeData = []
for curStrike in locator.strikes:
bitmapGlyphDict = {}
self.strikeData.append(bitmapGlyphDict)
for indexSubTable in curStrike.indexSubTables:
dataIter = itertools.izip(indexSubTable.names, indexSubTable.locations)
for curName, curLoc in dataIter:
# Don't create duplicate data entries for the same glyphs.
# Instead just use the structures that already exist if they exist.
if curLoc in glyphDict:
curGlyph = glyphDict[curLoc]
else:
curGlyphData = data[slice(*curLoc)]
imageFormatClass = self.getImageFormatClass(indexSubTable.imageFormat)
curGlyph = imageFormatClass(curGlyphData, ttFont)
glyphDict[curLoc] = curGlyph
bitmapGlyphDict[curName] = curGlyph
def decompile(self, data, ttFont):
dummy, newData = sstruct.unpack2(METAHeaderFormat, data, self)
self.glyphRecords = []
for i in range(self.nMetaRecs):
glyphRecord, newData = sstruct.unpack2(METAGlyphRecordFormat, newData, GlyphRecord())
if self.metaFlags == 0:
[glyphRecord.offset] = struct.unpack(">H", newData[:2])
newData = newData[2:]
elif self.metaFlags == 1:
[glyphRecord.offset] = struct.unpack(">H", newData[:4])
newData = newData[4:]
else:
assert 0, "The metaFlags field in the META table header has a value other than 0 or 1 :" + str(self.metaFlags)
glyphRecord.stringRecs = []
newData = data[glyphRecord.offset:]
for j in range(glyphRecord.nMetaEntry):
stringRec, newData = sstruct.unpack2(METAStringRecordFormat, newData, StringRecord())
if self.metaFlags == 0:
[stringRec.offset] = struct.unpack(">H", newData[:2])
newData = newData[2:]
else:
[stringRec.offset] = struct.unpack(">H", newData[:4])
newData = newData[4:]
stringRec.string = data[stringRec.offset:stringRec.offset + stringRec.stringLen]
glyphRecord.stringRecs.append(stringRec)
self.glyphRecords.append(glyphRecord)
def decompile(self, data, ttFont):
dummy, newData = sstruct.unpack2(METAHeaderFormat, data, self)
self.glyphRecords = []
for i in range(self.nMetaRecs):
glyphRecord, newData = sstruct.unpack2(METAGlyphRecordFormat,
newData, GlyphRecord())
if self.metaFlags == 0:
[glyphRecord.offset] = struct.unpack(">H", newData[:2])
newData = newData[2:]
elif self.metaFlags == 1:
[glyphRecord.offset] = struct.unpack(">H", newData[:4])
newData = newData[4:]
else:
assert 0, "The metaFlags field in the META table header has a value other than 0 or 1 :" + str(
self.metaFlags)
glyphRecord.stringRecs = []
newData = data[glyphRecord.offset:]
for j in range(glyphRecord.nMetaEntry):
stringRec, newData = sstruct.unpack2(METAStringRecordFormat,
newData, StringRecord())
if self.metaFlags == 0:
[stringRec.offset] = struct.unpack(">H", newData[:2])
newData = newData[2:]
else:
[stringRec.offset] = struct.unpack(">H", newData[:4])
newData = newData[4:]
stringRec.string = data[stringRec.offset:stringRec.offset +
stringRec.stringLen]
glyphRecord.stringRecs.append(stringRec)
self.glyphRecords.append(glyphRecord)
def decompile(self, data, ttFont):
# Get the version but don't advance the slice.
# Most of the lookup for this table is done relative
# to the begining so slice by the offsets provided
# in the EBLC table.
sstruct.unpack2(ebdtTableVersionFormat, data, self)
# Keep a dict of glyphs that have been seen so they aren't remade.
# This dict maps intervals of data to the BitmapGlyph.
glyphDict = {}
# Pull out the EBLC table and loop through glyphs.
# A strike is a concept that spans both tables.
# The actual bitmap data is stored in the EBDT.
locator = ttFont[self.__class__.locatorName]
self.strikeData = []
for curStrike in locator.strikes:
bitmapGlyphDict = {}
self.strikeData.append(bitmapGlyphDict)
for indexSubTable in curStrike.indexSubTables:
dataIter = itertools.izip(indexSubTable.names,
indexSubTable.locations)
for curName, curLoc in dataIter:
# Don't create duplicate data entries for the same glyphs.
# Instead just use the structures that already exist if they exist.
if curLoc in glyphDict:
curGlyph = glyphDict[curLoc]
else:
curGlyphData = data[slice(*curLoc)]
imageFormatClass = self.getImageFormatClass(
indexSubTable.imageFormat)
curGlyph = imageFormatClass(curGlyphData, ttFont)
glyphDict[curLoc] = curGlyph
bitmapGlyphDict[curName] = curGlyph
def decompile(self):
(self.imageSize,) = struct.unpack(">L", self.data[:4])
self.metrics = BigGlyphMetrics()
sstruct.unpack2(bigGlyphMetricsFormat, self.data[4:], self.metrics)
glyphIds = range(self.firstGlyphIndex, self.lastGlyphIndex+1)
offsets = [self.imageSize * i + self.imageDataOffset for i in xrange(len(glyphIds)+1)]
self.locations = zip(offsets, offsets[1:])
self.names = map(self.ttFont.getGlyphName, glyphIds)
def decompile(self, data, ttFont):
dummy, newData = sstruct.unpack2(GMAPFormat, data, self)
self.psFontName = newData[:self.fontNameLength]
assert (self.recordsOffset % 4) == 0, "GMAP error: recordsOffset is not 32 bit aligned."
newData = data[self.recordsOffset:]
self.gmapRecords = []
for i in range (self.recordsCount):
gmapRecord, newData = sstruct.unpack2(GMAPRecordFormat1, newData, GMAPRecord())
gmapRecord.name = gmapRecord.name.strip('\0')
self.gmapRecords.append(gmapRecord)
def decompile(self):
self.metrics = BigGlyphMetrics()
dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data, self.metrics)
(numComponents,) = struct.unpack(">H", data[:2])
data = data[2:]
self.componentArray = []
for i in xrange(numComponents):
curComponent = EbdtComponent()
dummy, data = sstruct.unpack2(ebdtComponentFormat, data, curComponent)
curComponent.name = self.ttFont.getGlyphName(curComponent.glyphCode)
self.componentArray.append(curComponent)
def decompile(self):
(self.imageSize, ) = struct.unpack(">L", self.data[:4])
self.metrics = BigGlyphMetrics()
sstruct.unpack2(bigGlyphMetricsFormat, self.data[4:], self.metrics)
glyphIds = range(self.firstGlyphIndex, self.lastGlyphIndex + 1)
offsets = [
self.imageSize * i + self.imageDataOffset
for i in xrange(len(glyphIds) + 1)
]
self.locations = zip(offsets, offsets[1:])
self.names = map(self.ttFont.getGlyphName, glyphIds)
def decompile(self, data, ttFont):
dummy, newData = sstruct.unpack2(GMAPFormat, data, self)
self.psFontName = newData[:self.fontNameLength]
assert (self.recordsOffset %
4) == 0, "GMAP error: recordsOffset is not 32 bit aligned."
newData = data[self.recordsOffset:]
self.gmapRecords = []
for i in range(self.recordsCount):
gmapRecord, newData = sstruct.unpack2(GMAPRecordFormat1, newData,
GMAPRecord())
gmapRecord.name = gmapRecord.name.strip('\0')
self.gmapRecords.append(gmapRecord)
def decompile(self, data, ttFont):
dummy, data = sstruct.unpack2(OS2_format_0, data, self)
if self.version == 1 and not data:
# workaround for buggy Apple fonts
self.version = 0
if self.version == 1:
sstruct.unpack2(OS2_format_1_addition, data, self)
elif self.version in (2, 3, 4):
sstruct.unpack2(OS2_format_2_addition, data, self)
elif self.version != 0:
from fontTools import ttLib
raise ttLib.TTLibError("unknown format for OS/2 table: version %s" % self.version)
self.panose = sstruct.unpack(panoseFormat, self.panose, Panose())
def decompile(self, data, ttFont):
dummy, data = sstruct.unpack2(OS2_format_0, data, self)
if self.version == 1 and not data:
# workaround for buggy Apple fonts
self.version = 0
if self.version == 1:
sstruct.unpack2(OS2_format_1_addition, data, self)
elif self.version in (2, 3, 4):
sstruct.unpack2(OS2_format_2_addition, data, self)
elif self.version <> 0:
from fontTools import ttLib
raise ttLib.TTLibError, "unknown format for OS/2 table: version %s" % self.version
self.panose = sstruct.unpack(panoseFormat, self.panose, Panose())
def decompile(self):
self.metrics = BigGlyphMetrics()
dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data,
self.metrics)
(numComponents, ) = struct.unpack(">H", data[:2])
data = data[2:]
self.componentArray = []
for i in xrange(numComponents):
curComponent = EbdtComponent()
dummy, data = sstruct.unpack2(ebdtComponentFormat, data,
curComponent)
curComponent.name = self.ttFont.getGlyphName(
curComponent.glyphCode)
self.componentArray.append(curComponent)
def decompile(self, data, ttFont):
dummy, newData = sstruct.unpack2(DSIG_HeaderFormat, data, self)
assert self.ulVersion == 1, "DSIG ulVersion must be 1"
assert self.usFlag & ~1 == 0, "DSIG usFlag must be 0x1 or 0x0"
self.signatureRecords = sigrecs = []
for n in range(self.usNumSigs):
sigrec, newData = sstruct.unpack2(DSIG_SignatureFormat, newData, SignatureRecord())
assert sigrec.ulFormat == 1, "DSIG signature record #%d ulFormat must be 1" % n
sigrecs.append(sigrec)
for sigrec in sigrecs:
dummy, newData = sstruct.unpack2(DSIG_SignatureBlockFormat, data[sigrec.ulOffset :], sigrec)
assert sigrec.usReserved1 == 0, "DSIG signature record #%d usReserverd1 must be 0" % n
assert sigrec.usReserved2 == 0, "DSIG signature record #%d usReserverd2 must be 0" % n
sigrec.pkcs7 = newData[: sigrec.cbSignature]
def decompile(self, data, ttFont): dummy, newData = sstruct.unpack2(DSIG_HeaderFormat, data, self) assert self.ulVersion == 1, "DSIG ulVersion must be 1" assert self.usFlag & ~1 == 0, "DSIG usFlag must be 0x1 or 0x0" self.signatureRecords = sigrecs = [] for n in range(self.usNumSigs): sigrec, newData = sstruct.unpack2(DSIG_SignatureFormat, newData, SignatureRecord()) assert sigrec.ulFormat == 1, "DSIG signature record #%d ulFormat must be 1" % n sigrecs.append(sigrec) for sigrec in sigrecs: dummy, newData = sstruct.unpack2(DSIG_SignatureBlockFormat, data[sigrec.ulOffset:], sigrec) assert sigrec.usReserved1 == 0, "DSIG signature record #%d usReserverd1 must be 0" % n assert sigrec.usReserved2 == 0, "DSIG signature record #%d usReserverd2 must be 0" % n sigrec.pkcs7 = newData[:sigrec.cbSignature]
def decompile(self, data, ttFont):
# Save the original data because offsets are from the start of the table.
origData = data
dummy, data = sstruct.unpack2(eblcHeaderFormat, data, self)
self.strikes = []
for curStrikeIndex in xrange(self.numSizes):
curStrike = Strike()
self.strikes.append(curStrike)
curTable = curStrike.bitmapSizeTable
dummy, data = sstruct.unpack2(bitmapSizeTableFormatPart1, data,
curTable)
for metric in ('hori', 'vert'):
metricObj = SbitLineMetrics()
vars(curTable)[metric] = metricObj
dummy, data = sstruct.unpack2(sbitLineMetricsFormat, data,
metricObj)
dummy, data = sstruct.unpack2(bitmapSizeTableFormatPart2, data,
curTable)
for curStrike in self.strikes:
curTable = curStrike.bitmapSizeTable
for subtableIndex in xrange(curTable.numberOfIndexSubTables):
lowerBound = curTable.indexSubTableArrayOffset + subtableIndex * indexSubTableArraySize
upperBound = lowerBound + indexSubTableArraySize
data = origData[lowerBound:upperBound]
tup = struct.unpack(indexSubTableArrayFormat, data)
(firstGlyphIndex, lastGlyphIndex,
additionalOffsetToIndexSubtable) = tup
offsetToIndexSubTable = curTable.indexSubTableArrayOffset + additionalOffsetToIndexSubtable
data = origData[offsetToIndexSubTable:]
tup = struct.unpack(indexSubHeaderFormat,
data[:indexSubHeaderSize])
(indexFormat, imageFormat, imageDataOffset) = tup
indexFormatClass = self.getIndexFormatClass(indexFormat)
indexSubTable = indexFormatClass(data[indexSubHeaderSize:],
ttFont)
indexSubTable.firstGlyphIndex = firstGlyphIndex
indexSubTable.lastGlyphIndex = lastGlyphIndex
indexSubTable.additionalOffsetToIndexSubtable = additionalOffsetToIndexSubtable
indexSubTable.indexFormat = indexFormat
indexSubTable.imageFormat = imageFormat
indexSubTable.imageDataOffset = imageDataOffset
curStrike.indexSubTables.append(indexSubTable)
def decompile(self, data, ttFont):
dummy, rest = sstruct.unpack2(headFormat, data, self)
if rest:
# this is quite illegal, but there seem to be fonts out there that do this
assert rest == "\0\0"
self.unitsPerEm = int(self.unitsPerEm)
self.flags = int(self.flags)
self.strings2dates()
def decompile_format_0(self, data, ttFont):
dummy, data2 = sstruct.unpack2(SVG_format_0, data, self)
# read in SVG Documents Index
pos = self.offsetToSVGDocIndex
self.numEntries = numEntries = struct.unpack(">H",
data[pos:pos + 2])[0]
self.decompileEntryList(data, pos + 2)
# read in colorPalettes table.
self.colorPalettes = colorPalettes = ColorPalettes()
pos = self.offsetToColorPalettes
if pos > 0:
colorPalettes.numColorParams = numColorParams = struct.unpack(
">H", data[pos:pos + 2])[0]
if numColorParams > 0:
colorPalettes.colorParamUINameIDs = colorParamUINameIDs = []
pos = pos + 2
i = 0
while i < numColorParams:
nameID = struct.unpack(">H", data[pos:pos + 2])[0]
colorParamUINameIDs.append(nameID)
pos = pos + 2
i += 1
colorPalettes.numColorPalettes = numColorPalettes = struct.unpack(
">H", data[pos:pos + 2])[0]
pos = pos + 2
if numColorPalettes > 0:
colorPalettes.colorPaletteList = colorPaletteList = []
i = 0
while i < numColorPalettes:
colorPalette = ColorPalette()
colorPaletteList.append(colorPalette)
colorPalette.uiNameID = struct.unpack(
">H", data[pos:pos + 2])[0]
pos = pos + 2
colorPalette.paletteColors = paletteColors = []
j = 0
while j < numColorParams:
colorRecord, colorPaletteData = sstruct.unpack2(
colorRecord_format_0, data[pos:],
ColorRecord())
paletteColors.append(colorRecord)
j += 1
pos += 4
i += 1
def decompile(self, data, ttFont): dummy, rest = sstruct.unpack2(headFormat, data, self) if rest: # this is quite illegal, but there seem to be fonts out there that do this assert rest == "\0\0" self.unitsPerEm = int(self.unitsPerEm) self.flags = int(self.flags) self.strings2dates()
def decompile(self, data, ttFont):
# Save the original data because offsets are from the start of the table.
origData = data
dummy, data = sstruct.unpack2(eblcHeaderFormat, data, self)
self.strikes = []
for curStrikeIndex in xrange(self.numSizes):
curStrike = Strike()
self.strikes.append(curStrike)
curTable = curStrike.bitmapSizeTable
dummy, data = sstruct.unpack2(bitmapSizeTableFormatPart1, data, curTable)
for metric in ('hori', 'vert'):
metricObj = SbitLineMetrics()
vars(curTable)[metric] = metricObj
dummy, data = sstruct.unpack2(sbitLineMetricsFormat, data, metricObj)
dummy, data = sstruct.unpack2(bitmapSizeTableFormatPart2, data, curTable)
for curStrike in self.strikes:
curTable = curStrike.bitmapSizeTable
for subtableIndex in xrange(curTable.numberOfIndexSubTables):
lowerBound = curTable.indexSubTableArrayOffset + subtableIndex * indexSubTableArraySize
upperBound = lowerBound + indexSubTableArraySize
data = origData[lowerBound:upperBound]
tup = struct.unpack(indexSubTableArrayFormat, data)
(firstGlyphIndex, lastGlyphIndex, additionalOffsetToIndexSubtable) = tup
offsetToIndexSubTable = curTable.indexSubTableArrayOffset + additionalOffsetToIndexSubtable
data = origData[offsetToIndexSubTable:]
tup = struct.unpack(indexSubHeaderFormat, data[:indexSubHeaderSize])
(indexFormat, imageFormat, imageDataOffset) = tup
indexFormatClass = self.getIndexFormatClass(indexFormat)
indexSubTable = indexFormatClass(data[indexSubHeaderSize:], ttFont)
indexSubTable.firstGlyphIndex = firstGlyphIndex
indexSubTable.lastGlyphIndex = lastGlyphIndex
indexSubTable.additionalOffsetToIndexSubtable = additionalOffsetToIndexSubtable
indexSubTable.indexFormat = indexFormat
indexSubTable.imageFormat = imageFormat
indexSubTable.imageDataOffset = imageDataOffset
curStrike.indexSubTables.append(indexSubTable)
def decompile(self):
self.metrics = BigGlyphMetrics()
dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data,
self.metrics)
(dataLen, ) = struct.unpack(">L", data[:4])
data = data[4:]
# For the image data cut it to the size specified by dataLen.
assert dataLen <= len(data), "Data overun in format 18"
self.imageData = data[:dataLen]
def decompile(self, data, ttFont): dummy, data = sstruct.unpack2(OS2_format_0, data, self) # workarounds for buggy fonts (Apple, mona) if not data: self.version = 0 elif len(data) == sstruct.calcsize(OS2_format_1_addition): self.version = 1 elif len(data) == sstruct.calcsize(OS2_format_2_addition): if self.version not in (2, 3, 4): self.version = 1 else: from fontTools import ttLib raise ttLib.TTLibError, "unknown format for OS/2 table (incorrect length): version %s" % (self.version, len(data)) if self.version == 1: sstruct.unpack2(OS2_format_1_addition, data, self) elif self.version in (2, 3, 4): sstruct.unpack2(OS2_format_2_addition, data, self) elif self.version <> 0: from fontTools import ttLib raise ttLib.TTLibError, "unknown format for OS/2 table: version %s" % self.version self.panose = sstruct.unpack(panoseFormat, self.panose, Panose())
def decompile(self, data, ttFont): dummy, rest = sstruct.unpack2(SINGFormat, data, self) self.uniqueName = self.decompileUniqueName(self.uniqueName) self.nameLength = ord(self.nameLength) assert len(rest) == self.nameLength self.baseGlyphName = rest rawMETAMD5 = self.METAMD5 self.METAMD5 = "[" + hex(ord(self.METAMD5[0])) for char in rawMETAMD5[1:]: self.METAMD5 = self.METAMD5 + ", " + hex(ord(char)) self.METAMD5 = self.METAMD5 + "]"
def decompile(self):
self.origDataLen = 0
(self.imageSize,) = struct.unpack(">L", self.data[:4])
data = self.data[4:]
self.metrics, data = sstruct.unpack2(bigGlyphMetricsFormat, data, BigGlyphMetrics())
(numGlyphs,) = struct.unpack(">L", data[:4])
data = data[4:]
glyphIds = [struct.unpack(">H", data[2*i:2*(i+1)])[0] for i in xrange(numGlyphs)]
offsets = [self.imageSize * i + self.imageDataOffset for i in xrange(len(glyphIds)+1)]
self.locations = zip(offsets, offsets[1:])
self.names = map(self.ttFont.getGlyphName, glyphIds)
def decompile(self, data, ttFont):
dummy, rest = sstruct.unpack2(SINGFormat, data, self)
self.uniqueName = self.decompileUniqueName(self.uniqueName)
self.nameLength = ord(self.nameLength)
assert len(rest) == self.nameLength
self.baseGlyphName = rest
rawMETAMD5 = self.METAMD5
self.METAMD5 = "[" + hex(ord(self.METAMD5[0]))
for char in rawMETAMD5[1:]:
self.METAMD5 = self.METAMD5 + ", " + hex(ord(char))
self.METAMD5 = self.METAMD5 + "]"
def decompile_format_0(self, data, ttFont):
dummy, data2 = sstruct.unpack2(SVG_format_0, data, self)
# read in SVG Documents Index
pos = self.offsetToSVGDocIndex
self.numEntries = numEntries = struct.unpack(">H", data[pos:pos+2])[0]
self.decompileEntryList(data, pos+2)
# read in colorPalettes table.
self.colorPalettes = colorPalettes = ColorPalettes()
pos = self.offsetToColorPalettes
if pos > 0:
colorPalettes.numColorParams = numColorParams = struct.unpack(">H", data[pos:pos+2])[0]
if numColorParams > 0:
colorPalettes.colorParamUINameIDs = colorParamUINameIDs = []
pos = pos + 2
i = 0
while i < numColorParams:
nameID = struct.unpack(">H", data[pos:pos+2])[0]
colorParamUINameIDs.append(nameID)
pos = pos + 2
i += 1
colorPalettes.numColorPalettes = numColorPalettes = struct.unpack(">H", data[pos:pos+2])[0]
pos = pos + 2
if numColorPalettes > 0:
colorPalettes.colorPaletteList = colorPaletteList = []
i = 0
while i < numColorPalettes:
colorPalette = ColorPalette()
colorPaletteList.append(colorPalette)
colorPalette.uiNameID = struct.unpack(">H", data[pos:pos+2])[0]
pos = pos + 2
colorPalette.paletteColors = paletteColors = []
j = 0
while j < numColorParams:
colorRecord, colorPaletteData = sstruct.unpack2(colorRecord_format_0, data[pos:], ColorRecord())
paletteColors.append(colorRecord)
j += 1
pos += 4
i += 1
def decompile(self, data, ttFont):
dummy, data = sstruct.unpack2(OS2_format_0, data, self)
# workarounds for buggy fonts (Apple, mona)
if not data:
self.version = 0
elif len(data) == sstruct.calcsize(OS2_format_1_addition):
self.version = 1
elif len(data) == sstruct.calcsize(OS2_format_2_addition):
if self.version not in (2, 3, 4):
self.version = 1
else:
from fontTools import ttLib
raise ttLib.TTLibError, "unknown format for OS/2 table (incorrect length): version %s" % (
self.version, len(data))
if self.version == 1:
sstruct.unpack2(OS2_format_1_addition, data, self)
elif self.version in (2, 3, 4):
sstruct.unpack2(OS2_format_2_addition, data, self)
elif self.version <> 0:
from fontTools import ttLib
raise ttLib.TTLibError, "unknown format for OS/2 table: version %s" % self.version
self.panose = sstruct.unpack(panoseFormat, self.panose, Panose())
def expand(self, glyfTable): if not hasattr(self, "data"): # already unpacked return if not self.data: # empty char self.numberOfContours = 0 return dummy, data = sstruct.unpack2(glyphHeaderFormat, self.data, self) del self.data if self.isComposite(): self.decompileComponents(data, glyfTable) else: self.decompileCoordinates(data)
def expand(self, glyfTable): if not hasattr(self, "data"): # already unpacked return if not self.data: # empty char self.numberOfContours = 0 return dummy, data = sstruct.unpack2(glyphHeaderFormat, self.data, self) del self.data if self.isComposite(): self.decompileComponents(data, glyfTable) else: self.decompileCoordinates(data)
def decompile(self, data, ttFont):
numGlyphs = ttFont['maxp'].numGlyphs
glyphOrder = ttFont.getGlyphOrder()
dummy, data = sstruct.unpack2(hdmxHeaderFormat, data, self)
self.hdmx = {}
for i in range(self.numRecords):
ppem = ord(data[0])
maxSize = ord(data[1])
widths = {}
for glyphID in range(numGlyphs):
widths[glyphOrder[glyphID]] = ord(data[glyphID+2])
self.hdmx[ppem] = widths
data = data[self.recordSize:]
assert len(data) == 0, "too much hdmx data"
def decompile(self, data, ttFont):
numGlyphs = ttFont['maxp'].numGlyphs
glyphOrder = ttFont.getGlyphOrder()
dummy, data = sstruct.unpack2(hdmxHeaderFormat, data, self)
self.hdmx = {}
for i in range(self.numRecords):
ppem = ord(data[0])
maxSize = ord(data[1])
widths = {}
for glyphID in range(numGlyphs):
widths[glyphOrder[glyphID]] = ord(data[glyphID + 2])
self.hdmx[ppem] = widths
data = data[self.recordSize:]
assert len(data) == 0, "too much hdmx data"
def decompileEntryList(self, data, pos): # data starts with the first entry of the entry list. if self.numEntries > 0: data2 = data[pos:] self.docList = [] self.entries = entries = [] i = 0 while i < self.numEntries: docIndexEntry, data2 = sstruct.unpack2(doc_index_entry_format_0, data2, DocumentIndexEntry()) entries.append(docIndexEntry) i += 1 for entry in entries: start = entry.svgDocOffset end = start + entry.svgDocLength doc = data[start:end] self.docList.append( [doc, entry.startGlyphID, entry.endGlyphID] )
def decompileEntryList(self, data, pos):
# data starts with the first entry of the entry list.
if self.numEntries > 0:
data2 = data[pos:]
self.docList = []
self.entries = entries = []
i = 0
while i < self.numEntries:
docIndexEntry, data2 = sstruct.unpack2(
doc_index_entry_format_0, data2, DocumentIndexEntry())
entries.append(docIndexEntry)
i += 1
for entry in entries:
start = entry.svgDocOffset
end = start + entry.svgDocLength
doc = data[start:end]
self.docList.append(
[doc, entry.startGlyphID, entry.endGlyphID])
def decompile(self):
self.origDataLen = 0
(self.imageSize, ) = struct.unpack(">L", self.data[:4])
data = self.data[4:]
self.metrics, data = sstruct.unpack2(bigGlyphMetricsFormat, data,
BigGlyphMetrics())
(numGlyphs, ) = struct.unpack(">L", data[:4])
data = data[4:]
glyphIds = [
struct.unpack(">H", data[2 * i:2 * (i + 1)])[0]
for i in xrange(numGlyphs)
]
offsets = [
self.imageSize * i + self.imageDataOffset
for i in xrange(len(glyphIds) + 1)
]
self.locations = zip(offsets, offsets[1:])
self.names = map(self.ttFont.getGlyphName, glyphIds)
def decompile(self, data, ttFont):
format, n, stringOffset = struct.unpack(">HHH", data[:6])
expectedStringOffset = 6 + n * nameRecordSize
if stringOffset != expectedStringOffset:
# XXX we need a warn function
print "Warning: 'name' table stringOffset incorrect.",
print "Expected: %s; Actual: %s" % (expectedStringOffset, stringOffset)
stringData = data[stringOffset:]
data = data[6:]
self.names = []
for i in range(n):
if len(data) < 12:
# compensate for buggy font
break
name, data = sstruct.unpack2(nameRecordFormat, data, NameRecord())
name.string = stringData[name.offset:name.offset+name.length]
assert len(name.string) == name.length
#if (name.platEncID, name.platformID) in ((0, 0), (1, 3)):
# if len(name.string) % 2:
# print "2-byte string doesn't have even length!"
# print name.__dict__
del name.offset, name.length
self.names.append(name)
def decompile(self, data, ttFont):
format, n, stringOffset = struct.unpack(">HHH", data[:6])
expectedStringOffset = 6 + n * nameRecordSize
if stringOffset != expectedStringOffset:
# XXX we need a warn function
print "Warning: 'name' table stringOffset incorrect.",
print "Expected: %s; Actual: %s" % (expectedStringOffset, stringOffset)
stringData = data[stringOffset:]
data = data[6:]
self.names = []
for i in range(n):
if len(data) < 12:
# compensate for buggy font
break
name, data = sstruct.unpack2(nameRecordFormat, data, NameRecord())
name.string = stringData[name.offset:name.offset+name.length]
assert len(name.string) == name.length
#if (name.platEncID, name.platformID) in ((0, 0), (1, 3)):
# if len(name.string) % 2:
# print "2-byte string doesn't have even length!"
# print name.__dict__
del name.offset, name.length
self.names.append(name)
def decompile(self, data, ttFont):
dummy, newData = sstruct.unpack2(GPKGFormat, data, self)
GMAPoffsets = array.array("L")
endPos = (self.numGMAPs+1) * 4
GMAPoffsets.fromstring(newData[:endPos])
if sys.byteorder <> "big":
GMAPoffsets.byteswap()
self.GMAPs = []
for i in range(self.numGMAPs):
start = GMAPoffsets[i]
end = GMAPoffsets[i+1]
self.GMAPs.append(data[start:end])
pos = endPos
endPos = pos + (self.numGlyplets + 1)*4
glyphletOffsets = array.array("L")
glyphletOffsets.fromstring(newData[pos:endPos])
if sys.byteorder <> "big":
glyphletOffsets.byteswap()
self.glyphlets = []
for i in range(self.numGlyplets):
start = glyphletOffsets[i]
end = glyphletOffsets[i+1]
self.glyphlets.append(data[start:end])
def decompile(self): self.metrics = BigGlyphMetrics() dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data, self.metrics) self.imageData = data
def decompile(self, data, ttFont):
dummy, data = sstruct.unpack2(maxpFormat_0_5, data, self)
self.numGlyphs = int(self.numGlyphs)
if self.tableVersion != 0x00005000:
dummy, data = sstruct.unpack2(maxpFormat_1_0_add, data, self)
assert len(data) == 0
def decompile(self, data, ttFont): dummy, data = sstruct.unpack2(maxpFormat_0_5, data, self) self.numGlyphs = int(self.numGlyphs) if self.tableVersion != 0x00005000: dummy, data = sstruct.unpack2(maxpFormat_1_0_add, data, self) assert len(data) == 0
def decompile(self):
self.metrics = BigGlyphMetrics()
dummy, data = sstruct.unpack2(bigGlyphMetricsFormat, self.data,
self.metrics)
self.imageData = data
