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Mini Shell
Mini Shell
from __future__ import annotations
from enum import IntEnum
from functools import partial
from typing import Any, Callable, List, Mapping, Optional, Sequence, TypeVar
import attr
from attr import define, field
from fontTools.ufoLib import UFOReader
from ufoLib2.objects.guideline import Guideline
from ufoLib2.objects.misc import AttrDictMixin
from .woff import (
WoffMetadataCopyright,
WoffMetadataCredit,
WoffMetadataCredits,
WoffMetadataDescription,
WoffMetadataExtension,
WoffMetadataExtensionItem,
WoffMetadataExtensionName,
WoffMetadataExtensionValue,
WoffMetadataLicense,
WoffMetadataLicensee,
WoffMetadataText,
WoffMetadataTrademark,
WoffMetadataUniqueID,
WoffMetadataVendor,
)
__all__ = (
"Info",
"GaspRangeRecord",
"NameRecord",
"WidthClass",
"WoffMetadataCopyright",
"WoffMetadataCredit",
"WoffMetadataCredits",
"WoffMetadataDescription",
"WoffMetadataExtension",
"WoffMetadataExtensionItem",
"WoffMetadataExtensionName",
"WoffMetadataExtensionValue",
"WoffMetadataLicense",
"WoffMetadataLicensee",
"WoffMetadataText",
"WoffMetadataTrademark",
"WoffMetadataUniqueID",
"WoffMetadataVendor",
)
def _positive(instance: Any, attribute: Any, value: int) -> None:
if value < 0:
raise ValueError(
"'{name}' must be at least 0 (got {value!r})".format(
name=attribute.name, value=value
)
)
_optional_positive = attr.validators.optional(_positive)
# or maybe use IntFlag?
class GaspBehavior(IntEnum):
GRIDFIT = 0
DOGRAY = 1
SYMMETRIC_GRIDFIT = 2
SYMMETRIC_SMOOTHING = 3
def _convert_GaspBehavior(seq: Sequence[GaspBehavior | int]) -> list[GaspBehavior]:
return [v if isinstance(v, GaspBehavior) else GaspBehavior(v) for v in seq]
@define
class GaspRangeRecord(AttrDictMixin):
rangeMaxPPEM: int = field(validator=_positive)
# Use Set[GaspBehavior] instead of List?
rangeGaspBehavior: List[GaspBehavior] = field(converter=_convert_GaspBehavior)
@define
class NameRecord(AttrDictMixin):
nameID: int = field(validator=_positive)
platformID: int = field(validator=_positive)
encodingID: int = field(validator=_positive)
languageID: int = field(validator=_positive)
string: str = ""
class WidthClass(IntEnum):
ULTRA_CONDENSED = 1
EXTRA_CONDESED = 2
CONDENSED = 3
SEMI_CONDENSED = 4
NORMAL = 5 # alias for WidthClass.MEDIUM
MEDIUM = 5
SEMI_EXPANDED = 6
EXPANDED = 7
EXTRA_EXPANDED = 8
ULTRA_EXPANDED = 9
Tc = TypeVar("Tc", bound=AttrDictMixin)
def _convert_optional_list_of_dicts(
cls: type[Tc], lst: Sequence[Tc | Mapping[str, Any]] | None
) -> list[Tc] | None:
if lst is None:
return None
return [cls.coerce_from_dict(d) for d in lst]
def _convert_guidelines(
values: Sequence[Guideline | Mapping[str, Any]] | None,
) -> list[Guideline] | None:
return _convert_optional_list_of_dicts(Guideline, values)
def _convert_gasp_range_records(
values: Sequence[GaspRangeRecord | Mapping[str, Any]] | None,
) -> list[GaspRangeRecord] | None:
return _convert_optional_list_of_dicts(GaspRangeRecord, values)
def _convert_name_records(
values: Sequence[NameRecord | Mapping[str, Any]] | None,
) -> list[NameRecord] | None:
return _convert_optional_list_of_dicts(NameRecord, values)
def _convert_WidthClass(value: int | None) -> WidthClass | None:
return None if value is None else WidthClass(value)
def _convert_WoffMetadataExtensions(
values: Sequence[WoffMetadataExtension | Mapping[str, Any]] | None
) -> list[WoffMetadataExtension] | None:
return _convert_optional_list_of_dicts(WoffMetadataExtension, values)
def _converter_setter_property(
cls: type[Any], converter: Callable[[Any], Any], name: str | None = None
) -> Any:
if name is None:
class_name = cls.__name__
# lower the first char of class name and prepend underscore
name = f"_{class_name[0].lower()}{class_name[1:]}"
attr_name: str = name
def getter(self: Any) -> Any:
return getattr(self, attr_name)
def setter(self: Any, value: Any) -> None:
setattr(self, attr_name, converter(value))
return property(getter, setter)
def _dict_setter_property(cls: type[Tc], name: str | None = None) -> Any:
return _converter_setter_property(cls, cls.coerce_from_optional_dict, name)
def _dict_list_setter_property(cls: type[Tc], name: str | None = None) -> Any:
return _converter_setter_property(
cls, partial(_convert_optional_list_of_dicts, cls), name
)
@define
class Info:
"""A data class representing the contents of fontinfo.plist.
The attributes are formally specified at
http://unifiedfontobject.org/versions/ufo3/fontinfo.plist/. Value validation is
mostly done during saving and loading.
"""
familyName: Optional[str] = None
styleName: Optional[str] = None
styleMapFamilyName: Optional[str] = None
styleMapStyleName: Optional[str] = None
versionMajor: Optional[int] = field(default=None, validator=_optional_positive)
versionMinor: Optional[int] = field(default=None, validator=_optional_positive)
copyright: Optional[str] = None
trademark: Optional[str] = None
unitsPerEm: Optional[float] = field(default=None, validator=_optional_positive)
descender: Optional[float] = None
xHeight: Optional[float] = None
capHeight: Optional[float] = None
ascender: Optional[float] = None
italicAngle: Optional[float] = None
note: Optional[str] = None
_guidelines: Optional[List[Guideline]] = field(
default=None, converter=_convert_guidelines
)
@property
def guidelines(self) -> list[Guideline] | None:
return self._guidelines
@guidelines.setter
def guidelines(self, value: list[Guideline] | None) -> None:
self._guidelines = _convert_guidelines(value)
_openTypeGaspRangeRecords: Optional[List[GaspRangeRecord]] = field(
default=None, converter=_convert_gasp_range_records
)
@property
def openTypeGaspRangeRecords(self) -> list[GaspRangeRecord] | None:
return self._openTypeGaspRangeRecords
@openTypeGaspRangeRecords.setter
def openTypeGaspRangeRecords(self, value: list[GaspRangeRecord] | None) -> None:
self._openTypeGaspRangeRecords = _convert_gasp_range_records(value)
openTypeHeadCreated: Optional[str] = None
openTypeHeadLowestRecPPEM: Optional[int] = field(
default=None, validator=_optional_positive
)
openTypeHeadFlags: Optional[List[int]] = None
openTypeHheaAscender: Optional[int] = None
openTypeHheaDescender: Optional[int] = None
openTypeHheaLineGap: Optional[int] = None
openTypeHheaCaretSlopeRise: Optional[int] = None
openTypeHheaCaretSlopeRun: Optional[int] = None
openTypeHheaCaretOffset: Optional[int] = None
openTypeNameDesigner: Optional[str] = None
openTypeNameDesignerURL: Optional[str] = None
openTypeNameManufacturer: Optional[str] = None
openTypeNameManufacturerURL: Optional[str] = None
openTypeNameLicense: Optional[str] = None
openTypeNameLicenseURL: Optional[str] = None
openTypeNameVersion: Optional[str] = None
openTypeNameUniqueID: Optional[str] = None
openTypeNameDescription: Optional[str] = None
openTypeNamePreferredFamilyName: Optional[str] = None
openTypeNamePreferredSubfamilyName: Optional[str] = None
openTypeNameCompatibleFullName: Optional[str] = None
openTypeNameSampleText: Optional[str] = None
openTypeNameWWSFamilyName: Optional[str] = None
openTypeNameWWSSubfamilyName: Optional[str] = None
_openTypeNameRecords: Optional[List[NameRecord]] = field(
default=None, converter=_convert_name_records
)
@property
def openTypeNameRecords(self) -> list[NameRecord] | None:
return self._openTypeNameRecords
@openTypeNameRecords.setter
def openTypeNameRecords(self, value: list[NameRecord] | None) -> None:
self._openTypeNameRecords = _convert_name_records(value)
_openTypeOS2WidthClass: Optional[WidthClass] = field(
default=None, converter=_convert_WidthClass
)
@property
def openTypeOS2WidthClass(self) -> WidthClass | None:
return self._openTypeOS2WidthClass
@openTypeOS2WidthClass.setter
def openTypeOS2WidthClass(self, value: WidthClass | None) -> None:
self._openTypeOS2WidthClass = value if value is None else WidthClass(value)
openTypeOS2WeightClass: Optional[int] = field(default=None)
@openTypeOS2WeightClass.validator
def _validate_weight_class(self, attribute: Any, value: int | None) -> None:
if value is not None and (value < 1 or value > 1000):
raise ValueError("'openTypeOS2WeightClass' must be between 1 and 1000")
openTypeOS2Selection: Optional[List[int]] = None
openTypeOS2VendorID: Optional[str] = None
openTypeOS2Panose: Optional[List[int]] = None
openTypeOS2FamilyClass: Optional[List[int]] = None
openTypeOS2UnicodeRanges: Optional[List[int]] = None
openTypeOS2CodePageRanges: Optional[List[int]] = None
openTypeOS2TypoAscender: Optional[int] = None
openTypeOS2TypoDescender: Optional[int] = None
openTypeOS2TypoLineGap: Optional[int] = None
openTypeOS2WinAscent: Optional[int] = field(
default=None, validator=_optional_positive
)
openTypeOS2WinDescent: Optional[int] = field(
default=None, validator=_optional_positive
)
openTypeOS2Type: Optional[List[int]] = None
openTypeOS2SubscriptXSize: Optional[int] = None
openTypeOS2SubscriptYSize: Optional[int] = None
openTypeOS2SubscriptXOffset: Optional[int] = None
openTypeOS2SubscriptYOffset: Optional[int] = None
openTypeOS2SuperscriptXSize: Optional[int] = None
openTypeOS2SuperscriptYSize: Optional[int] = None
openTypeOS2SuperscriptXOffset: Optional[int] = None
openTypeOS2SuperscriptYOffset: Optional[int] = None
openTypeOS2StrikeoutSize: Optional[int] = None
openTypeOS2StrikeoutPosition: Optional[int] = None
openTypeVheaVertTypoAscender: Optional[int] = None
openTypeVheaVertTypoDescender: Optional[int] = None
openTypeVheaVertTypoLineGap: Optional[int] = None
openTypeVheaCaretSlopeRise: Optional[int] = None
openTypeVheaCaretSlopeRun: Optional[int] = None
openTypeVheaCaretOffset: Optional[int] = None
postscriptFontName: Optional[str] = None
postscriptFullName: Optional[str] = None
postscriptSlantAngle: Optional[float] = None
postscriptUniqueID: Optional[int] = None
postscriptUnderlineThickness: Optional[float] = None
postscriptUnderlinePosition: Optional[float] = None
postscriptIsFixedPitch: Optional[bool] = None
postscriptBlueValues: Optional[List[float]] = None
postscriptOtherBlues: Optional[List[float]] = None
postscriptFamilyBlues: Optional[List[float]] = None
postscriptFamilyOtherBlues: Optional[List[float]] = None
postscriptStemSnapH: Optional[List[float]] = None
postscriptStemSnapV: Optional[List[float]] = None
postscriptBlueFuzz: Optional[float] = None
postscriptBlueShift: Optional[float] = None
postscriptBlueScale: Optional[float] = None
postscriptForceBold: Optional[bool] = None
postscriptDefaultWidthX: Optional[float] = None
postscriptNominalWidthX: Optional[float] = None
postscriptWeightName: Optional[str] = None
postscriptDefaultCharacter: Optional[str] = None
postscriptWindowsCharacterSet: Optional[int] = None
# old stuff
macintoshFONDName: Optional[str] = None
macintoshFONDFamilyID: Optional[int] = None
year: Optional[int] = None
# woff metadata
woffMajorVersion: Optional[int] = field(default=None, validator=_optional_positive)
woffMinorVersion: Optional[int] = field(default=None, validator=_optional_positive)
_woffMetadataUniqueID: Optional[WoffMetadataUniqueID] = field(
default=None,
# mute mypy error "unsupported converter, only named functions and types ..."
# The woff metadata attributes are too many to bother defining named
# converters and properties. Maybe one day...
converter=WoffMetadataUniqueID.coerce_from_optional_dict, # type: ignore
)
woffMetadataUniqueID = _dict_setter_property(WoffMetadataUniqueID)
_woffMetadataVendor: Optional[WoffMetadataVendor] = field(
default=None,
converter=WoffMetadataVendor.coerce_from_optional_dict, # type: ignore
)
woffMetadataVendor = _dict_setter_property(WoffMetadataVendor)
_woffMetadataCredits: Optional[WoffMetadataCredits] = field(
default=None,
converter=WoffMetadataCredits.coerce_from_optional_dict, # type: ignore
)
woffMetadataCredits = _dict_setter_property(WoffMetadataCredits)
_woffMetadataDescription: Optional[WoffMetadataDescription] = field(
default=None,
converter=WoffMetadataDescription.coerce_from_optional_dict, # type: ignore
)
woffMetadataDescription = _dict_setter_property(WoffMetadataDescription)
_woffMetadataLicense: Optional[WoffMetadataLicense] = field(
default=None,
converter=WoffMetadataLicense.coerce_from_optional_dict, # type: ignore
)
woffMetadataLicense = _dict_setter_property(WoffMetadataLicense)
_woffMetadataCopyright: Optional[WoffMetadataCopyright] = field(
default=None,
converter=WoffMetadataCopyright.coerce_from_optional_dict, # type: ignore
)
woffMetadataCopyright = _dict_setter_property(WoffMetadataCopyright)
_woffMetadataTrademark: Optional[WoffMetadataTrademark] = field(
default=None,
converter=WoffMetadataTrademark.coerce_from_optional_dict, # type: ignore
)
woffMetadataTrademark = _dict_setter_property(WoffMetadataTrademark)
_woffMetadataLicensee: Optional[WoffMetadataLicensee] = field(
default=None,
converter=WoffMetadataLicensee.coerce_from_optional_dict, # type: ignore
)
woffMetadataLicensee = _dict_setter_property(WoffMetadataLicensee)
_woffMetadataExtensions: Optional[List[WoffMetadataExtension]] = field(
default=None,
converter=_convert_WoffMetadataExtensions,
)
woffMetadataExtensions = _dict_list_setter_property(
WoffMetadataExtension, "_woffMetadataExtensions"
)
@classmethod
def read(cls, reader: UFOReader) -> Info:
"""Instantiates a Info object from a
:class:`fontTools.ufoLib.UFOReader`."""
self = cls()
reader.readInfo(self)
return self
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