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|
from typing import Any, Tuple, Union
from ._base import FloatObject, NumberObject
from ._data_structures import ArrayObject
class RectangleObject(ArrayObject):
"""
This class is used to represent *page boxes* in pypdf.
These boxes include:
* :attr:`artbox <pypdf._page.PageObject.artbox>`
* :attr:`bleedbox <pypdf._page.PageObject.bleedbox>`
* :attr:`cropbox <pypdf._page.PageObject.cropbox>`
* :attr:`mediabox <pypdf._page.PageObject.mediabox>`
* :attr:`trimbox <pypdf._page.PageObject.trimbox>`
"""
def __init__(
self, arr: Union["RectangleObject", Tuple[float, float, float, float]]
) -> None:
# must have four points
assert len(arr) == 4
# automatically convert arr[x] into NumberObject(arr[x]) if necessary
ArrayObject.__init__(self, [self._ensure_is_number(x) for x in arr]) # type: ignore
def _ensure_is_number(self, value: Any) -> Union[FloatObject, NumberObject]:
if not isinstance(value, (NumberObject, FloatObject)):
value = FloatObject(value)
return value
def scale(self, sx: float, sy: float) -> "RectangleObject":
return RectangleObject(
(
float(self.left) * sx,
float(self.bottom) * sy,
float(self.right) * sx,
float(self.top) * sy,
)
)
def __repr__(self) -> str:
return f"RectangleObject({list(self)!r})"
@property
def left(self) -> FloatObject:
return self[0]
@left.setter
def left(self, f: float) -> None:
self[0] = FloatObject(f)
@property
def bottom(self) -> FloatObject:
return self[1]
@bottom.setter
def bottom(self, f: float) -> None:
self[1] = FloatObject(f)
@property
def right(self) -> FloatObject:
return self[2]
@right.setter
def right(self, f: float) -> None:
self[2] = FloatObject(f)
@property
def top(self) -> FloatObject:
return self[3]
@top.setter
def top(self, f: float) -> None:
self[3] = FloatObject(f)
@property
def lower_left(self) -> Tuple[float, float]:
"""
Property to read and modify the lower left coordinate of this box
in (x,y) form.
"""
return self.left, self.bottom
@lower_left.setter
def lower_left(self, value: Tuple[float, float]) -> None:
self[0], self[1] = (self._ensure_is_number(x) for x in value)
@property
def lower_right(self) -> Tuple[float, float]:
"""
Property to read and modify the lower right coordinate of this box
in (x,y) form.
"""
return self.right, self.bottom
@lower_right.setter
def lower_right(self, value: Tuple[float, float]) -> None:
self[2], self[1] = (self._ensure_is_number(x) for x in value)
@property
def upper_left(self) -> Tuple[float, float]:
"""
Property to read and modify the upper left coordinate of this box
in (x,y) form.
"""
return self.left, self.top
@upper_left.setter
def upper_left(self, value: Tuple[float, float]) -> None:
self[0], self[3] = (self._ensure_is_number(x) for x in value)
@property
def upper_right(self) -> Tuple[float, float]:
"""
Property to read and modify the upper right coordinate of this box
in (x,y) form.
"""
return self.right, self.top
@upper_right.setter
def upper_right(self, value: Tuple[float, float]) -> None:
self[2], self[3] = (self._ensure_is_number(x) for x in value)
@property
def width(self) -> float:
return self.right - self.left
@property
def height(self) -> float:
return self.top - self.bottom
|
