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116 lines (100 loc) · 3.88 KB
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# encoding: utf-8
"""
DrawingML objects related to color, ColorFormat being the most prominent.
"""
from __future__ import (
absolute_import, division, print_function, unicode_literals
)
from ..enum.dml import MSO_COLOR_TYPE
from ..oxml.simpletypes import ST_HexColorAuto
from ..shared import ElementProxy
class ColorFormat(ElementProxy):
"""
Provides access to color settings such as RGB color, theme color, and
luminance adjustments.
"""
__slots__ = ()
def __init__(self, rPr_parent):
super(ColorFormat, self).__init__(rPr_parent)
@property
def rgb(self):
"""
An |RGBColor| value or |None| if no RGB color is specified.
When :attr:`type` is `MSO_COLOR_TYPE.RGB`, the value of this property
will always be an |RGBColor| value. It may also be an |RGBColor|
value if :attr:`type` is `MSO_COLOR_TYPE.THEME`, as Word writes the
current value of a theme color when one is assigned. In that case,
the RGB value should be interpreted as no more than a good guess
however, as the theme color takes precedence at rendering time. Its
value is |None| whenever :attr:`type` is either |None| or
`MSO_COLOR_TYPE.AUTO`.
Assigning an |RGBColor| value causes :attr:`type` to become
`MSO_COLOR_TYPE.RGB` and any theme color is removed. Assigning |None|
causes any color to be removed such that the effective color is
inherited from the style hierarchy.
"""
color = self._color
if color is None:
return None
if color.val == ST_HexColorAuto.AUTO:
return None
return color.val
@rgb.setter
def rgb(self, value):
if value is None and self._color is None:
return
rPr = self._element.get_or_add_rPr()
rPr._remove_color()
if value is not None:
rPr.get_or_add_color().val = value
@property
def theme_color(self):
"""
A member of :ref:`MsoThemeColorIndex` or |None| if no theme color is
specified. When :attr:`type` is `MSO_COLOR_TYPE.THEME`, the value of
this property will always be a member of :ref:`MsoThemeColorIndex`.
When :attr:`type` has any other value, the value of this property is
|None|.
Assigning a member of :ref:`MsoThemeColorIndex` causes :attr:`type`
to become `MSO_COLOR_TYPE.THEME`. Any existing RGB value is retained
but ignored by Word. Assigning |None| causes any color specification
to be removed such that the effective color is inherited from the
style hierarchy.
"""
color = self._color
if color is None or color.themeColor is None:
return None
return color.themeColor
@theme_color.setter
def theme_color(self, value):
if value is None:
if self._color is not None:
self._element.rPr._remove_color()
return
self._element.get_or_add_rPr().get_or_add_color().themeColor = value
@property
def type(self):
"""
Read-only. A member of :ref:`MsoColorType`, one of RGB, THEME, or
AUTO, corresponding to the way this color is defined. Its value is
|None| if no color is applied at this level, which causes the
effective color to be inherited from the style hierarchy.
"""
color = self._color
if color is None:
return None
if color.themeColor is not None:
return MSO_COLOR_TYPE.THEME
if color.val == ST_HexColorAuto.AUTO:
return MSO_COLOR_TYPE.AUTO
return MSO_COLOR_TYPE.RGB
@property
def _color(self):
"""
Return `w:rPr/w:color` or |None| if not present. Helper to factor out
repetitive element access.
"""
rPr = self._element.rPr
if rPr is None:
return None
return rPr.color