def __zero_charset_fmt(self,output):
font = TTFont(output)
cffTableOffset = font.reader.tables['CFF '].offset
cffTable = font['CFF '].cff
assert len(cffTable.fontNames) == 1 #only one font should be present
charsetOffset = cffTable[cffTable.fontNames[0]].rawDict['charset']
numGlyphs = font['maxp'].numGlyphs
inner_file = font.reader.file
inner_file.seek(cffTableOffset+charsetOffset)
format = readCard8(inner_file);
if format != 2 and format != 1:
return None
record_len = 4 if format == 2 else 3
seenGlyphCount = 0
size = 0
while seenGlyphCount < numGlyphs:
inner_file.seek(2,io.SEEK_CUR)
if format == 2:
nLeft = readCard16(inner_file)
else: #format 1
nLeft = readCard8(inner_file)
seenGlyphCount += nLeft + 1
size += 1
font.close()
filler = Filler(output)
filler.fill(cffTableOffset+charsetOffset+1, record_len*size, '\x00')
filler.close()
def type6_7(font):
cffTableOffset = font.reader.tables['CFF '].offset
cffTable = font['CFF '].cff
assert len(cffTable.fontNames) == 1 #only one font should be present
charsetOffset = cffTable[cffTable.fontNames[0]].rawDict['charset']
numGlyphs = font['maxp'].numGlyphs
inner_file = font.reader.file
inner_file.seek(cffTableOffset + charsetOffset)
format = readCard8(inner_file)
if format != 2 and format != 1:
return None
seenGlyphCount = 0
firstArr = []
nLeftArr = []
while seenGlyphCount < numGlyphs:
first = readCard16(inner_file)
if format == 2:
nLeft = readCard16(inner_file)
elif format == 1:
nLeft = readCard8(inner_file)
firstArr.append(first)
nLeftArr.append(nLeft)
seenGlyphCount += nLeft + 1
rangeCount = len(firstArr)
#print 'charset size',rangeCount*4+1,'bytes'
gos_data = Bits()
escaped_data = Bits()
gos_data.frombytes(struct.pack('>L', cffTableOffset + charsetOffset))
if format == 2:
gos_data.frombytes(struct.pack('>B', 6)) #format 2
elif format == 1:
gos_data.frombytes(struct.pack('>B', 7)) #format 1
gos_data.frombytes(struct.pack('>H', rangeCount))
deltaFirst = generateDeltaArray(firstArr)
deltaNLeft = generateDeltaArray(nLeftArr)
for idx in xrange(rangeCount):
first_enc = NumberEncoders.BitEncodeAllOnesEscape(
deltaFirst[idx], 5)
extend_bits_or_escape(gos_data, escaped_data, first_enc)
nLeft_enc = NumberEncoders.BitEncodeAllOnesEscape(
deltaNLeft[idx], 3)
extend_bits_or_escape(gos_data, escaped_data, nLeft_enc)
whole_data = gos_data.tobytes() + escaped_data.tobytes()
#print 'type6 size',len(whole_data)
return whole_data
def type6_7(font):
cffTableOffset = font.reader.tables['CFF '].offset
cffTable = font['CFF '].cff
assert len(cffTable.fontNames) == 1 #only one font should be present
charsetOffset = cffTable[cffTable.fontNames[0]].rawDict['charset']
numGlyphs = font['maxp'].numGlyphs
inner_file = font.reader.file
inner_file.seek(cffTableOffset+charsetOffset)
format = readCard8(inner_file);
if format != 2 and format != 1:
return None
seenGlyphCount = 0
firstArr = []
nLeftArr = []
while seenGlyphCount < numGlyphs:
first = readCard16(inner_file)
if format == 2:
nLeft = readCard16(inner_file)
elif format == 1:
nLeft = readCard8(inner_file)
firstArr.append(first)
nLeftArr.append(nLeft)
seenGlyphCount += nLeft + 1
rangeCount = len(firstArr)
#print 'charset size',rangeCount*4+1,'bytes'
gos_data = Bits()
escaped_data = Bits()
gos_data.frombytes(struct.pack('>L',cffTableOffset+charsetOffset))
if format == 2:
gos_data.frombytes(struct.pack('>B',6)) #format 2
elif format == 1:
gos_data.frombytes(struct.pack('>B',7)) #format 1
gos_data.frombytes(struct.pack('>H',rangeCount))
deltaFirst = generateDeltaArray(firstArr)
deltaNLeft = generateDeltaArray(nLeftArr)
for idx in xrange(rangeCount):
first_enc = NumberEncoders.BitEncodeAllOnesEscape(deltaFirst[idx],5)
extend_bits_or_escape(gos_data, escaped_data, first_enc)
nLeft_enc = NumberEncoders.BitEncodeAllOnesEscape(deltaNLeft[idx],3)
extend_bits_or_escape(gos_data, escaped_data, nLeft_enc)
whole_data = gos_data.tobytes() + escaped_data.tobytes()
#print 'type6 size',len(whole_data)
return whole_data
