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|
"""Helpers for working with PDF types."""
from abc import abstractmethod
from pathlib import Path
from typing import IO, Any, Dict, List, Optional, Tuple, Union
try:
# Python 3.8+: https://peps.python.org/pep-0586
from typing import Protocol
except ImportError:
from typing_extensions import Protocol # type: ignore[assignment]
from ._utils import StrByteType, StreamType
class PdfObjectProtocol(Protocol):
indirect_reference: Any
def clone(
self,
pdf_dest: Any,
force_duplicate: bool = False,
ignore_fields: Union[Tuple[str, ...], List[str], None] = (),
) -> Any:
... # pragma: no cover
def _reference_clone(self, clone: Any, pdf_dest: Any) -> Any:
... # pragma: no cover
def get_object(self) -> Optional["PdfObjectProtocol"]:
... # pragma: no cover
def hash_value(self) -> bytes:
... # pragma: no cover
def write_to_stream(
self, stream: StreamType, encryption_key: Union[None, str, bytes] = None
) -> None:
... # pragma: no cover
class XmpInformationProtocol(PdfObjectProtocol):
pass
class PdfCommonDocProtocol(Protocol):
@property
def pdf_header(self) -> str:
... # pragma: no cover
@property
def pages(self) -> List[Any]:
... # pragma: no cover
@property
def root_object(self) -> PdfObjectProtocol:
... # pragma: no cover
def get_object(self, indirect_reference: Any) -> Optional[PdfObjectProtocol]:
... # pragma: no cover
@property
def strict(self) -> bool:
... # pragma: no cover
class PdfReaderProtocol(PdfCommonDocProtocol, Protocol):
@property
@abstractmethod
def xref(self) -> Dict[int, Dict[int, Any]]:
... # pragma: no cover
@property
@abstractmethod
def trailer(self) -> Dict[str, Any]:
... # pragma: no cover
class PdfWriterProtocol(PdfCommonDocProtocol, Protocol):
_objects: List[Any]
_id_translated: Dict[int, Dict[int, int]]
@abstractmethod
def write(self, stream: Union[Path, StrByteType]) -> Tuple[bool, IO[Any]]:
... # pragma: no cover
@abstractmethod
def _add_object(self, obj: Any) -> Any:
... # pragma: no cover
|
