def decode(effects):
"""
Reads and decodes info about layer effects.
"""
fp = io.BytesIO(effects)
version, effects_count = read_fmt("HH", fp)
effects_list = []
for idx in range(effects_count):
sig = fp.read(4)
if sig != b'8BIM':
raise Error("Error parsing layer effect: invalid signature (%r)" %
sig)
effect_type = fp.read(4)
if not EffectOSType.is_known(effect_type):
warnings.warn("Unknown effect type (%s)" % effect_type)
effect_info_length = read_fmt("I", fp)[0]
effect_info = fp.read(effect_info_length)
decoder = _effect_info_decoders.get(effect_type, lambda data: data)
effects_list.append(LayerEffect(effect_type, decoder(effect_info)))
return Effects(version, effects_count, effects_list)
def decode(effects):
"""
Reads and decodes info about layer effects.
"""
fp = io.BytesIO(effects)
version, effects_count = read_fmt("HH", fp)
effects_list = []
for idx in range(effects_count):
sig = fp.read(4)
if sig != b'8BIM':
raise Error("Error parsing layer effect: invalid signature (%r)" % sig)
effect_type = fp.read(4)
if not EffectOSType.is_known(effect_type):
warnings.warn("Unknown effect type (%s)" % effect_type)
effect_info_length = read_fmt("I", fp)[0]
effect_info = fp.read(effect_info_length)
decoder = _effect_info_decoders.get(effect_type, lambda data: data)
effects_list.append(LayerEffect(effect_type, decoder(effect_info)))
return Effects(version, effects_count, effects_list)
def _repr_pretty_(self, p, cycle):
if cycle:
p.text(repr(self))
else:
with p.group(0, 'LayerEffect(', ')'):
p.text("%s %s, " % (self.effect_type, EffectOSType.name_of(self.effect_type)))
p.pretty(self.effect_info)
def read(cls, fp, **kwargs):
version, count = read_fmt('2H', fp)
items = []
for _ in range(count):
signature = read_fmt('4s', fp)[0]
assert signature == b'8BIM', 'Invalid signature %r' % (signature)
ostype = EffectOSType(read_fmt('4s', fp)[0])
kls = cls.EFFECT_TYPES.get(ostype)
items.append((ostype, kls.frombytes(read_length_block(fp))))
return cls(version=version, items=items)
def _repr_pretty_(self, p, cycle):
# IS NOT TESTED!!
if cycle:
p.text('LayerEffect(...)')
else:
with p.group(1, 'LayerEffect(', ')'):
p.breakable()
p.text("%s %s," % (self.effect_type, EffectOSType.name_of(self.effect_type)))
p.breakable()
p.pretty(self.effect_info)
def _repr_pretty_(self, p, cycle):
# IS NOT TESTED!!
if cycle:
p.text('LayerEffect(...)')
else:
with p.group(1, 'LayerEffect(', ')'):
p.breakable()
p.text("%s %s," % (self.effect_type, EffectOSType.name_of(self.effect_type)))
p.breakable()
p.pretty(self.effect_info)
def __repr__(self):
return "LayerEffect(%s %s, %s)" % (self.effect_type, EffectOSType.name_of(self.effect_type),
self.effect_info)
def __repr__(self):
return "LayerEffect(%s %s, %s)" % (
self.effect_type, EffectOSType.name_of(
self.effect_type), self.effect_info)
