from __future__ import annotations
import io
from typing import List, Iterator, Tuple, Optional, Any, TYPE_CHECKING, Callable
from ctypes import *
from datetime import datetime
from numbers import Number
from pdftools_toolbox.internal import _lib
from pdftools_toolbox.internal.utils import _string_to_utf16, _utf16_to_string
from pdftools_toolbox.internal.streams import _StreamDescriptor, _NativeStream
from pdftools_toolbox.internal.native_base import _NativeBase
from pdftools_toolbox.internal.native_object import _NativeObject
import pdftools_toolbox.internal
[docs]
class SignatureField(_NativeObject):
"""
A digital signature field
"""
@property
def is_visible(self) -> bool:
"""
The visibility of the signature field
If `True`, the signature field has a visual appearance on the page.
Returns:
bool
Raises:
StateError:
if the object has already been closed
"""
_lib.PtxPdfForms_SignatureField_IsVisible.argtypes = [c_void_p]
_lib.PtxPdfForms_SignatureField_IsVisible.restype = c_bool
ret_val = _lib.PtxPdfForms_SignatureField_IsVisible(self._handle)
if not ret_val:
_NativeBase._throw_last_error()
return ret_val
@staticmethod
def _create_dynamic_type(handle):
_lib.PtxPdfForms_SignatureField_GetType.argtypes = [c_void_p]
_lib.PtxPdfForms_SignatureField_GetType.restype = c_int
obj_type = _lib.PtxPdfForms_SignatureField_GetType(handle)
# Create and return the object based on the type
if obj_type == 0:
return SignatureField._from_handle(handle)
elif obj_type == 1:
from pdftools_toolbox.pdf.forms.signed_signature_field import SignedSignatureField
return SignedSignatureField._from_handle(handle)
elif obj_type == 2:
from pdftools_toolbox.pdf.forms.signature import Signature
return Signature._from_handle(handle)
elif obj_type == 3:
from pdftools_toolbox.pdf.forms.document_signature import DocumentSignature
return DocumentSignature._from_handle(handle)
elif obj_type == 4:
from pdftools_toolbox.pdf.forms.doc_mdp_signature import DocMdpSignature
return DocMdpSignature._from_handle(handle)
elif obj_type == 5:
from pdftools_toolbox.pdf.forms.document_time_stamp import DocumentTimeStamp
return DocumentTimeStamp._from_handle(handle)
else:
return None
@classmethod
def _from_handle(cls, handle):
"""
Internal factory method for constructing an instance using an internal handle.
This method creates an instance of the class by bypassing the public constructor.
"""
instance = SignatureField.__new__(cls) # Bypass __init__
instance._initialize(handle)
return instance
def _initialize(self, handle):
super()._initialize(handle)