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
if TYPE_CHECKING:
from pdftools_toolbox.pdf.content.blend_mode import BlendMode
else:
BlendMode = "pdftools_toolbox.pdf.content.blend_mode.BlendMode"
[docs]
class Transparency(_NativeObject):
"""
"""
[docs]
def __init__(self, alpha: float):
"""
Args:
alpha (float):
Raises:
ValueError:
if the given value smaller than 0.0 or greater than 1.0.
"""
if not isinstance(alpha, Number):
raise TypeError(f"Expected type {Number.__name__}, but got {type(alpha).__name__}.")
_lib.PtxPdfContent_Transparency_New.argtypes = [c_double]
_lib.PtxPdfContent_Transparency_New.restype = c_void_p
ret_val = _lib.PtxPdfContent_Transparency_New(alpha)
if ret_val is None:
_NativeBase._throw_last_error(False)
super()._initialize(ret_val)
@property
def blend_mode(self) -> BlendMode:
"""
Returns:
pdftools_toolbox.pdf.content.blend_mode.BlendMode
"""
from pdftools_toolbox.pdf.content.blend_mode import BlendMode
_lib.PtxPdfContent_Transparency_GetBlendMode.argtypes = [c_void_p]
_lib.PtxPdfContent_Transparency_GetBlendMode.restype = c_int
ret_val = _lib.PtxPdfContent_Transparency_GetBlendMode(self._handle)
if ret_val == 0:
_NativeBase._throw_last_error()
return BlendMode(ret_val)
@blend_mode.setter
def blend_mode(self, val: BlendMode) -> None:
"""
Args:
val (pdftools_toolbox.pdf.content.blend_mode.BlendMode):
property value
"""
from pdftools_toolbox.pdf.content.blend_mode import BlendMode
if not isinstance(val, BlendMode):
raise TypeError(f"Expected type {BlendMode.__name__}, but got {type(val).__name__}.")
_lib.PtxPdfContent_Transparency_SetBlendMode.argtypes = [c_void_p, c_int]
_lib.PtxPdfContent_Transparency_SetBlendMode.restype = c_bool
if not _lib.PtxPdfContent_Transparency_SetBlendMode(self._handle, c_int(val.value)):
_NativeBase._throw_last_error(False)
@property
def alpha(self) -> float:
"""
Returns:
float
"""
_lib.PtxPdfContent_Transparency_GetAlpha.argtypes = [c_void_p]
_lib.PtxPdfContent_Transparency_GetAlpha.restype = c_double
ret_val = _lib.PtxPdfContent_Transparency_GetAlpha(self._handle)
if ret_val == -1:
_NativeBase._throw_last_error()
return ret_val
@alpha.setter
def alpha(self, val: float) -> None:
"""
Args:
val (float):
property value
Raises:
ValueError:
if the given value smaller than 0.0 or greater than 1.0.
"""
if not isinstance(val, Number):
raise TypeError(f"Expected type {Number.__name__}, but got {type(val).__name__}.")
_lib.PtxPdfContent_Transparency_SetAlpha.argtypes = [c_void_p, c_double]
_lib.PtxPdfContent_Transparency_SetAlpha.restype = c_bool
if not _lib.PtxPdfContent_Transparency_SetAlpha(self._handle, val):
_NativeBase._throw_last_error(False)
@staticmethod
def _create_dynamic_type(handle):
return Transparency._from_handle(handle)
@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 = Transparency.__new__(cls) # Bypass __init__
instance._initialize(handle)
return instance
def _initialize(self, handle):
super()._initialize(handle)