def read(self, stream: Stream, version):
"""
Reads the decoration information
"""
self.fixed_angle = not bool(stream.read_uchar())
stream.log('detected {}'.format(
'fixed angle' if self.fixed_angle else 'not fixed angle'))
self.flip_first = bool(stream.read_uchar())
stream.log('detected {}'.format(
'flip first' if self.flip_first else 'no flip first'))
self.flip_all = bool(stream.read_uchar())
stream.log('detected {}'.format(
'flip all' if self.flip_all else 'no flip all'))
self.position_as_ratio = stream.read_ushort('position as ratio') != 0
self.marker = stream.read_object('marker')
# next bit is the number of doubles coming next
marker_number_positions = stream.read_uint('marker positions')
# next bit is the positions themselves -- maybe we can infer this from the number of positions
# alone. E.g. 2 positions = 0, 1. 3 positions = 0, 0.5, 1
for _ in range(marker_number_positions):
self.marker_positions.append(stream.read_double())
stream.log('marker positions are {}'.format(self.marker_positions))
def read(self, stream: Stream, version):
self.flip = stream.read_uchar('flip') != 0
self.offset = stream.read_double('offset')
self.pattern_marker = stream.read_object('pattern marker')
self.template = stream.read_object('template')
self.decoration = stream.read_object('decoration')
self.symbol_level = SymbolLayer.read_symbol_level(stream)
self.decoration_on_top = stream.read_uchar('decoration on top') != 0
self.line_start_offset = stream.read_double('line start offset')
self.cap = self.read_cap(stream)
self.join = self.read_join(stream)
self.miter_limit = stream.read_double('miter limit')
def read(self, stream: Stream, version):
self.color = stream.read_object('color')
self.unicode = stream.read_int('unicode')
self.units = stream.read_int('units')
self.angle = stream.read_double('angle')
self.size = stream.read_double('size')
self.depth = stream.read_double('depth')
self.normalized_origin_x = stream.read_double('normalized origin x')
self.normalized_origin_y = stream.read_double('normalized origin y')
self.normalized_origin_z = stream.read_double('normalized origin z')
self.x_offset = stream.read_double('x offset')
self.y_offset = stream.read_double('y offset')
self.z_offset = stream.read_double('z offset')
self.font = stream.read_object('font')
self.read_symbol_level(stream)
stream.read_ushort('unknown', expected=65535)
self.character_marker_symbol = stream.read_object('character marker')
self.vertical_orientation = stream.read_uchar(
'vertical orientation') != 0
self.x_rotation = stream.read_double('x rotation')
self.y_rotation = stream.read_double('y rotation')
self.width = stream.read_double('width')
self.maintain_aspect_ratio = stream.read_ushort(
'maintain aspect ratio') != 0
self.billboard_display = stream.read_ushort('billboard display') != 0
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]
self.symbol_level = SymbolLayer.read_symbol_level(stream)
self.angle = stream.read_double('angle')
self.x_offset = stream.read_double('x offset')
self.y_offset = stream.read_double('y offset')
self.outline_enabled = stream.read_uchar('has outline') != 0
self.outline_width = stream.read_double('outline width')
self.outline_color = stream.read_object('outline color')
if version > 1:
self.rotate_with_transform = stream.read_ushort('rotate with transform') != 0
def read(self, stream: Stream, version):
version = binascii.hexlify(stream.read(1))
if version != b'01':
raise UnsupportedVersionException(
'Unsupported Font version {}'.format(version))
self.charset = stream.read_ushort('charset')
# Not exposed in ArcMap front end:
attributes = stream.read_uchar('attributes')
self.italic = bool(attributes & self.Italic)
self.underline = bool(attributes & self.Underline)
self.strikethrough = bool(attributes & self.Strikethrough)
self.weight = stream.read_ushort('weight')
# From https://docs.microsoft.com/en-us/windows/desktop/api/olectl/ns-olectl-tagfontdesc
# Use the int64 member of the CY structure and scale your font size (in points) by 10000.
self.size = stream.read_int('font size') / 10000
name_length = stream.read_uchar('font name size')
self.font_name = stream.read(name_length).decode(
Font.CHARSET_MAP[self.charset])
def read(self, stream: Stream, version):
if version in (3, 4, 5):
self.picture = stream.read_object('picture')
elif version in (7, 8):
_ = stream.read_ushort('pic version?')
_ = stream.read_uint('picture type?')
self.picture = stream.read_object('picture')
elif version == 9:
self.picture = Picture.create_from_stream(stream)
if version < 4:
_ = stream.read_object()
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')
self.x_scale = stream.read_double('x scale')
self.y_scale = stream.read_double('y scale')
self.symbol_level = SymbolLayer.read_symbol_level(stream)
self.swap_fb_gb = bool(stream.read_uchar('swap fgbg'))
self.rotate_with_transform = stream.read_ushort(
'rotate with transform') != 0
if version < 5:
return
stream.read_int('unknown', expected=0)
stream.read_ushort('unknown', expected=0)
if version == 7:
return
if 5 < version <= 8:
size = stream.read_int('unknown size')
stream.read(size)
def read(self, stream: Stream, version):
if version <= 4:
self.picture = stream.read_object('picture')
elif version == 7:
_ = stream.read_ushort('pic version?')
_ = stream.read_uint('picture type?')
self.picture = stream.read_object('picture')
elif version == 8:
self.picture = Picture.create_from_stream(stream)
self.color_background = stream.read_object('color bg')
self.color_foreground = stream.read_object('color fg')
self.color_transparent = stream.read_object('color trans')
# either an entire LineSymbol or just a LineSymbolLayer
self.outline = stream.read_object('outline')
self.angle = stream.read_double('angle')
self.scale_x = stream.read_double('scale_x')
self.scale_y = stream.read_double('scale_y')
self.offset_x = stream.read_double('offset x')
self.offset_y = stream.read_double('offset y')
self.separation_x = stream.read_double('separation x')
self.separation_y = stream.read_double('separation y')
stream.read(16)
self.symbol_level = SymbolLayer.read_symbol_level(stream)
self.swap_fb_gb = bool(stream.read_uchar('swap fgbg'))
if version < 4:
return
stream.read(6)
if 4 < version < 8:
stream.read(4)
def read(self, stream: Stream, version):
stream.read_uchar('unknown', expected=0)
self.offset = stream.read_double('offset')
self.width = stream.read_double('width')
self.fill_symbol = stream.read_object('fill symbol')
def read(self, stream: Stream, version):
self.width = stream.read_double('width')
self.texture_fill_symbol = stream.read_object('texture fill symbol')
self.vertical_orientation = stream.read_uchar(
'vertical orientation') != 0
