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"""Visual effects on a shape such as shadow, glow, and reflection."""
from __future__ import annotations
class ShadowFormat(object):
"""Provides access to shadow effect on a shape."""
def __init__(self, spPr):
# ---spPr may also be a grpSpPr; both have a:effectLst child---
self._element = spPr
@property
def inherit(self):
"""True if shape inherits shadow settings.
Read/write. An explicitly-defined shadow setting on a shape causes
this property to return |False|. A shape with no explicitly-defined
shadow setting inherits its shadow settings from the style hierarchy
(and so returns |True|).
Assigning |True| causes any explicitly-defined shadow setting to be
removed and inheritance is restored. Note this has the side-effect of
removing **all** explicitly-defined effects, such as glow and
reflection, and restoring inheritance for all effects on the shape.
Assigning |False| causes the inheritance link to be broken and **no**
effects to appear on the shape.
"""
if self._element.effectLst is None:
return True
return False
@inherit.setter
def inherit(self, value):
inherit = bool(value)
if inherit:
# ---remove any explicitly-defined effects
self._element._remove_effectLst()
else:
# ---ensure at least the effectLst element is present
self._element.get_or_add_effectLst()
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