def _read(self, stream: Stream, version):
number_layers = stream.read_uint('layer count')
for i in range(number_layers):
layer = stream.read_object('symbol layer {}/{}'.format(
i + 1, number_layers))
self.levels.extend([layer])
# the next section varies in size. To handle this we jump forward to a known anchor
# point, and then move back by a known amount
# burn up to the 02
stream.log('burning up to 02...')
while not binascii.hexlify(stream.read(1)) == b'02':
pass
# jump back a known amount
stream.rewind(8 * number_layers + 1)
# TODO - replace the fragile bit above!
# stream.read(1)
# stream.read_double('unknown size')
# stream.read_double('unknown size')
for l in self.levels:
l.read_enabled(stream)
for l in self.levels:
l.read_locked(stream)
def _read(self, stream: Stream, version):
self.color = stream.read_object('color')
number_layers = stream.read_int('layers')
for i in range(number_layers):
stream.consume_padding()
layer = stream.read_object('symbol layer {}/{}'.format(
i + 1, number_layers))
self.levels.extend([layer])
# the next section varies in size. To handle this we jump forward to a known anchor
# point, and then move back by a known amount
# burn up to the 02
stream.log('burning up to 02...')
while not binascii.hexlify(stream.read(1)) == b'02':
pass
# jump back a known amount
stream.rewind(8 * number_layers + 1)
for l in self.levels:
l.read_enabled(stream)
for l in self.levels:
l.read_locked(stream)
def read(self, stream: Stream, version):
stream.read(8)
self._read(stream, version)
# do we end in 02?
check = binascii.hexlify(stream.read(1))
if check != b'02':
raise UnreadableSymbolException(
'Found unexpected value {} at {}, expected x02'.format(
check, hex(stream.tell() - 1)))
stream.read(5)
# PROBLEMATIC!!
check = binascii.hexlify(stream.read(1))
if check == b'02':
stream.read(5)
else:
stream.rewind(1)