206 lines
5.8 KiB
Python
206 lines
5.8 KiB
Python
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# encoding: utf-8
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"""
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lxml custom element classes for DrawingML-related XML elements.
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"""
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from __future__ import absolute_import
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from pptx.enum.dml import MSO_PATTERN_TYPE
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from pptx.oxml import parse_xml
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from pptx.oxml.ns import nsdecls
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from pptx.oxml.simpletypes import (
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ST_Percentage,
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ST_PositiveFixedAngle,
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ST_PositiveFixedPercentage,
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ST_RelationshipId,
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)
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from pptx.oxml.xmlchemy import (
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BaseOxmlElement,
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Choice,
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OneOrMore,
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OptionalAttribute,
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RequiredAttribute,
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ZeroOrOne,
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ZeroOrOneChoice,
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)
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class CT_Blip(BaseOxmlElement):
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"""
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<a:blip> element
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"""
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rEmbed = OptionalAttribute("r:embed", ST_RelationshipId)
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class CT_BlipFillProperties(BaseOxmlElement):
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"""
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Custom element class for <a:blipFill> element.
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"""
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_tag_seq = ("a:blip", "a:srcRect", "a:tile", "a:stretch")
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blip = ZeroOrOne("a:blip", successors=_tag_seq[1:])
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srcRect = ZeroOrOne("a:srcRect", successors=_tag_seq[2:])
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del _tag_seq
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def crop(self, cropping):
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"""
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Set `a:srcRect` child to crop according to *cropping* values.
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"""
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srcRect = self._add_srcRect()
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srcRect.l, srcRect.t, srcRect.r, srcRect.b = cropping
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class CT_GradientFillProperties(BaseOxmlElement):
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"""`a:gradFill` custom element class."""
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_tag_seq = ("a:gsLst", "a:lin", "a:path", "a:tileRect")
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gsLst = ZeroOrOne("a:gsLst", successors=_tag_seq[1:])
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lin = ZeroOrOne("a:lin", successors=_tag_seq[2:])
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path = ZeroOrOne("a:path", successors=_tag_seq[3:])
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del _tag_seq
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@classmethod
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def new_gradFill(cls):
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"""Return newly-created "loose" default gradient subtree."""
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return parse_xml(
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'<a:gradFill %s rotWithShape="1">\n'
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" <a:gsLst>\n"
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' <a:gs pos="0">\n'
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' <a:schemeClr val="accent1">\n'
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' <a:tint val="100000"/>\n'
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' <a:shade val="100000"/>\n'
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' <a:satMod val="130000"/>\n'
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" </a:schemeClr>\n"
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" </a:gs>\n"
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' <a:gs pos="100000">\n'
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' <a:schemeClr val="accent1">\n'
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' <a:tint val="50000"/>\n'
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' <a:shade val="100000"/>\n'
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' <a:satMod val="350000"/>\n'
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" </a:schemeClr>\n"
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" </a:gs>\n"
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" </a:gsLst>\n"
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' <a:lin scaled="0"/>\n'
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"</a:gradFill>\n" % nsdecls("a")
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)
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def _new_gsLst(self):
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"""Override default to add minimum subtree."""
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return CT_GradientStopList.new_gsLst()
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class CT_GradientStop(BaseOxmlElement):
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"""`a:gs` custom element class."""
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eg_colorChoice = ZeroOrOneChoice(
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(
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Choice("a:scrgbClr"),
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Choice("a:srgbClr"),
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Choice("a:hslClr"),
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Choice("a:sysClr"),
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Choice("a:schemeClr"),
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Choice("a:prstClr"),
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),
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successors=(),
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)
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pos = RequiredAttribute("pos", ST_PositiveFixedPercentage)
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class CT_GradientStopList(BaseOxmlElement):
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"""`a:gsLst` custom element class."""
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gs = OneOrMore("a:gs")
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@classmethod
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def new_gsLst(cls):
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"""Return newly-created "loose" default stop-list subtree.
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An `a:gsLst` element must have at least two `a:gs` children. These
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are the default from the PowerPoint built-in "White" template.
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"""
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return parse_xml(
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"<a:gsLst %s>\n"
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' <a:gs pos="0">\n'
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' <a:schemeClr val="accent1">\n'
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' <a:tint val="100000"/>\n'
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' <a:shade val="100000"/>\n'
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' <a:satMod val="130000"/>\n'
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" </a:schemeClr>\n"
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" </a:gs>\n"
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' <a:gs pos="100000">\n'
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' <a:schemeClr val="accent1">\n'
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' <a:tint val="50000"/>\n'
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' <a:shade val="100000"/>\n'
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' <a:satMod val="350000"/>\n'
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" </a:schemeClr>\n"
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" </a:gs>\n"
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"</a:gsLst>\n" % nsdecls("a")
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)
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class CT_GroupFillProperties(BaseOxmlElement):
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"""`a:grpFill` custom element class"""
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class CT_LinearShadeProperties(BaseOxmlElement):
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"""`a:lin` custom element class"""
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ang = OptionalAttribute("ang", ST_PositiveFixedAngle)
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class CT_NoFillProperties(BaseOxmlElement):
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"""`a:noFill` custom element class"""
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class CT_PatternFillProperties(BaseOxmlElement):
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"""`a:pattFill` custom element class"""
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_tag_seq = ("a:fgClr", "a:bgClr")
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fgClr = ZeroOrOne("a:fgClr", successors=_tag_seq[1:])
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bgClr = ZeroOrOne("a:bgClr", successors=_tag_seq[2:])
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del _tag_seq
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prst = OptionalAttribute("prst", MSO_PATTERN_TYPE)
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def _new_bgClr(self):
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"""Override default to add minimum subtree."""
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xml = (
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"<a:bgClr %s>\n" ' <a:srgbClr val="FFFFFF"/>\n' "</a:bgClr>\n"
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) % nsdecls("a")
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bgClr = parse_xml(xml)
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return bgClr
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def _new_fgClr(self):
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"""Override default to add minimum subtree."""
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xml = (
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"<a:fgClr %s>\n" ' <a:srgbClr val="000000"/>\n' "</a:fgClr>\n"
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) % nsdecls("a")
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fgClr = parse_xml(xml)
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return fgClr
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class CT_RelativeRect(BaseOxmlElement):
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"""`a:srcRect` element and perhaps others."""
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l = OptionalAttribute("l", ST_Percentage, default=0.0) # noqa
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t = OptionalAttribute("t", ST_Percentage, default=0.0)
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r = OptionalAttribute("r", ST_Percentage, default=0.0)
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b = OptionalAttribute("b", ST_Percentage, default=0.0)
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class CT_SolidColorFillProperties(BaseOxmlElement):
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"""`a:solidFill` custom element class."""
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eg_colorChoice = ZeroOrOneChoice(
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(
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Choice("a:scrgbClr"),
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Choice("a:srgbClr"),
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Choice("a:hslClr"),
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Choice("a:sysClr"),
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Choice("a:schemeClr"),
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Choice("a:prstClr"),
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),
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successors=(),
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)
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