def read(self, stream: Stream, version):
stream.read_int('unknown')
stream.read_int('unknown 2')
self.file = stream.read_embedded_file('image')
self.color_foreground = stream.read_object('color 1')
self.color_background = stream.read_object('color 2')
self.color_transparent = stream.read_object('color 3')
self.angle = stream.read_double('angle')
self.size = stream.read_double('size')
self.x_offset = stream.read_double('x offset')
self.y_offset = stream.read_double('y offset')
stream.read_double('unknown')
stream.read_double('unknown')
stream.read_0d_terminator()
self.swap_fb_gb = bool(stream.read_uchar('swap fgbg'))
check = binascii.hexlify(stream.read(2))
if check != b'ffff':
raise UnreadableSymbolException(
'Expected ffff at {}, got {}'.format(check,
hex(stream.tell() - 2)))
# unknown
stream.read(6)
def read(self, stream: Stream, version):
self.color = stream.read_object('color')
self.size = stream.read_double('size')
type_code = stream.read_int()
type_dict = {
0: 'circle',
1: 'square',
2: 'cross',
3: 'x',
4: 'diamond'
}
if type_code not in type_dict:
raise UnreadableSymbolException(
'Unknown marker type at {}, got {}'.format(
hex(stream.tell() - 4), type_code))
stream.log('found a {}'.format(type_dict[type_code]), 4)
self.type = type_dict[type_code]
# look for 0d terminator
if not binascii.hexlify(stream.read(8)) == b'0d00000000000000':
raise UnreadableSymbolException()
stream.read_double('unknown')
self.x_offset = stream.read_double('x offset')
self.y_offset = stream.read_double('y offset')
has_outline = stream.read_uchar()
if has_outline == 1:
self.outline_enabled = True
self.outline_width = stream.read_double('outline width')
self.outline_color = stream.read_object('outline color')
check = binascii.hexlify(stream.read(2))
if check != b'ffff':
raise UnreadableSymbolException(
'Expected ffff at {}, got {}'.format(check,
hex(stream.tell() - 2)))
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)
def read_line_type(stream: Stream):
"""
Interprets the line type bytes
"""
line_type = stream.read_uint()
types = {
0: 'solid',
1: 'dashed',
2: 'dotted',
3: 'dash dot',
4: 'dash dot dot',
5: 'null'
}
if line_type not in types:
raise UnreadableSymbolException(
'unknown line type {} at {}'.format(line_type,
hex(stream.tell() - 4)))
return types[line_type]
def _read(self, stream: Stream, version):
# consume section of unknown purpose
_ = stream.read_double('unknown size')
unknown_object = stream.read_object('unknown')
if unknown_object is not None:
assert False, unknown_object
_ = stream.read_double('unknown size')
self.color = stream.read_object('color')
self.halo = stream.read_int() == 1
self.halo_size = stream.read_double('halo size')
self.halo_symbol = stream.read_object('halo')
# not sure about this - there's an extra 02 here if a full fill symbol is used for the halo
if False and isinstance(self.halo_symbol, Symbol):
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(1)
if isinstance(self.halo_symbol, SymbolLayer):
stream.read(4)
# useful stuff
number_layers = stream.read_int('layers')
for i in range(number_layers):
layer = stream.read_object('symbol layer {}/{}'.format(
i + 1, number_layers))
self.levels.extend([layer])
for l in self.levels:
l.read_enabled(stream)
for l in self.levels:
l.read_locked(stream)
_ = stream.read_double('unknown size')
_ = stream.read_double('unknown size')
def read(self, stream: Stream, version):
if not stream.read_0d_terminator():
raise UnreadableSymbolException(
'Could not find 0d terminator at {}'.format(
hex(stream.tell() - 8)))
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])
for l in self.levels:
l.read_enabled(stream)
for l in self.levels:
l.read_locked(stream)
if version >= 2:
for l in self.levels:
l.read_tags(stream)
def read(self, stream: Stream, version):
self.color = stream.read_object('color')
self.size = stream.read_double('size')
self.width = stream.read_double('width')
self.angle = stream.read_double('angle')
# 12 bytes unknown purpose
stream.log('skipping 12 unknown bytes')
_ = stream.read_uint('unknown')
stream.read_0d_terminator()
self.x_offset = stream.read_double('x offset')
self.y_offset = stream.read_double('y offset')
check = binascii.hexlify(stream.read(2))
if check != b'ffff':
raise UnreadableSymbolException(
'Expected ffff at {}, got {}'.format(check,
hex(stream.tell() - 2)))
def read(self, stream: Stream, version):
if not stream.read_0d_terminator():
raise UnreadableSymbolException(
'Could not find 0d terminator at {}'.format(
hex(stream.tell() - 8)))
# consume unused properties - MultiLayerMarkerSymbol implements IMarkerSymbol
# so that the size/offsets/angle are required properties. But they aren't used
# or exposed anywhere for MultiLayerMarkerSymbol
_ = stream.read_double('unused marker size')
_ = stream.read_double('unused marker x/y/offset or angle')
_ = stream.read_double('unused marker x/y/offset or angle')
_ = stream.read_double('unused marker x/y/offset or angle')
_ = stream.read_object('unused color')
self.halo = stream.read_int() == 1
self.halo_size = stream.read_double('halo size')
self.halo_symbol = stream.read_object('halo')
# useful stuff
number_layers = stream.read_int('layers')
for i in range(number_layers):
layer = stream.read_object('symbol layer {}/{}'.format(
i + 1, number_layers))
self.levels.extend([layer])
for l in self.levels:
l.read_enabled(stream)
for l in self.levels:
l.read_locked(stream)
_ = stream.read_double('unknown size')
_ = stream.read_double('unknown size')
if version >= 3:
for l in self.levels:
l.read_tags(stream)
def read(self, stream: Stream, version):
if version in (4, 5):
self.picture = stream.read_object('picture')
elif version == 8:
_ = stream.read_ushort('pic version?')
_ = stream.read_uint('picture type?')
self.picture = stream.read_object('picture')
elif version == 9:
self.picture = stream.read_picture('picture')
if version <= 8:
_ = stream.read_object()
self.color_foreground = stream.read_object('color 1')
self.color_background = stream.read_object('color 2')
if version >= 9:
self.color_transparent = stream.read_object('color 3')
self.angle = stream.read_double('angle')
self.size = stream.read_double('size')
self.x_offset = stream.read_double('x offset')
self.y_offset = stream.read_double('y offset')
stream.read_double('unknown')
stream.read_double('unknown')
stream.read_0d_terminator()
self.swap_fb_gb = bool(stream.read_uchar('swap fgbg'))
check = binascii.hexlify(stream.read(2))
if check != b'ffff':
raise UnreadableSymbolException('Expected ffff at {}, got {}'.format(check, hex(stream.tell() - 2)))
if version < 6:
return
stream.read(6)
if version <= 8:
stream.read(4)
