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"""lxml custom element classes for XML elements related to the Connector shape."""
from __future__ import annotations
from typing import TYPE_CHECKING, cast
from pptx.oxml import parse_xml
from pptx.oxml.ns import nsdecls
from pptx.oxml.shapes.shared import BaseShapeElement
from pptx.oxml.simpletypes import ST_DrawingElementId, XsdUnsignedInt
from pptx.oxml.xmlchemy import BaseOxmlElement, OneAndOnlyOne, RequiredAttribute, ZeroOrOne
if TYPE_CHECKING:
from pptx.oxml.shapes.shared import CT_ShapeProperties
class CT_Connection(BaseShapeElement):
"""A `a:stCxn` or `a:endCxn` element.
Specifies a connection between an end-point of a connector and a shape connection point.
"""
id = RequiredAttribute("id", ST_DrawingElementId)
idx = RequiredAttribute("idx", XsdUnsignedInt)
class CT_Connector(BaseShapeElement):
"""A line/connector shape `p:cxnSp` element"""
_tag_seq = ("p:nvCxnSpPr", "p:spPr", "p:style", "p:extLst")
nvCxnSpPr = OneAndOnlyOne("p:nvCxnSpPr")
spPr: CT_ShapeProperties = OneAndOnlyOne("p:spPr") # pyright: ignore[reportAssignmentType]
del _tag_seq
@classmethod
def new_cxnSp(
cls,
id_: int,
name: str,
prst: str,
x: int,
y: int,
cx: int,
cy: int,
flipH: bool,
flipV: bool,
) -> CT_Connector:
"""Return a new `p:cxnSp` element tree configured as a base connector."""
flip = (' flipH="1"' if flipH else "") + (' flipV="1"' if flipV else "")
return cast(
CT_Connector,
parse_xml(
f"<p:cxnSp {nsdecls('a', 'p')}>\n"
f" <p:nvCxnSpPr>\n"
f' <p:cNvPr id="{id_}" name="{name}"/>\n'
f" <p:cNvCxnSpPr/>\n"
f" <p:nvPr/>\n"
f" </p:nvCxnSpPr>\n"
f" <p:spPr>\n"
f" <a:xfrm{flip}>\n"
f' <a:off x="{x}" y="{y}"/>\n'
f' <a:ext cx="{cx}" cy="{cy}"/>\n'
f" </a:xfrm>\n"
f' <a:prstGeom prst="{prst}">\n'
f" <a:avLst/>\n"
f" </a:prstGeom>\n"
f" </p:spPr>\n"
f" <p:style>\n"
f' <a:lnRef idx="2">\n'
f' <a:schemeClr val="accent1"/>\n'
f" </a:lnRef>\n"
f' <a:fillRef idx="0">\n'
f' <a:schemeClr val="accent1"/>\n'
f" </a:fillRef>\n"
f' <a:effectRef idx="1">\n'
f' <a:schemeClr val="accent1"/>\n'
f" </a:effectRef>\n"
f' <a:fontRef idx="minor">\n'
f' <a:schemeClr val="tx1"/>\n'
f" </a:fontRef>\n"
f" </p:style>\n"
f"</p:cxnSp>"
),
)
class CT_ConnectorNonVisual(BaseOxmlElement):
"""
`p:nvCxnSpPr` element, container for the non-visual properties of
a connector, such as name, id, etc.
"""
cNvPr = OneAndOnlyOne("p:cNvPr")
cNvCxnSpPr = OneAndOnlyOne("p:cNvCxnSpPr")
nvPr = OneAndOnlyOne("p:nvPr")
class CT_NonVisualConnectorProperties(BaseOxmlElement):
"""
`p:cNvCxnSpPr` element, container for the non-visual properties specific
to a connector shape, such as connections and connector locking.
"""
_tag_seq = ("a:cxnSpLocks", "a:stCxn", "a:endCxn", "a:extLst")
stCxn = ZeroOrOne("a:stCxn", successors=_tag_seq[2:])
endCxn = ZeroOrOne("a:endCxn", successors=_tag_seq[3:])
del _tag_seq
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