589 lines
18 KiB
Python
589 lines
18 KiB
Python
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# encoding: utf-8
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"""Custom element classes for table-related XML elements"""
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from __future__ import absolute_import, division, print_function, unicode_literals
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from pptx.enum.text import MSO_VERTICAL_ANCHOR
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from pptx.oxml import parse_xml
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from pptx.oxml.dml.fill import CT_GradientFillProperties
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from pptx.oxml.ns import nsdecls
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from pptx.oxml.simpletypes import ST_Coordinate, ST_Coordinate32, XsdBoolean, XsdInt
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from pptx.oxml.text import CT_TextBody
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from pptx.oxml.xmlchemy import (
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BaseOxmlElement,
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Choice,
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OneAndOnlyOne,
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OptionalAttribute,
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RequiredAttribute,
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ZeroOrMore,
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ZeroOrOne,
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ZeroOrOneChoice,
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)
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from pptx.util import Emu, lazyproperty
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class CT_Table(BaseOxmlElement):
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"""`a:tbl` custom element class"""
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_tag_seq = ("a:tblPr", "a:tblGrid", "a:tr")
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tblPr = ZeroOrOne("a:tblPr", successors=_tag_seq[1:])
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tblGrid = OneAndOnlyOne("a:tblGrid")
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tr = ZeroOrMore("a:tr", successors=_tag_seq[3:])
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del _tag_seq
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def add_tr(self, height):
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"""
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Return a reference to a newly created <a:tr> child element having its
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``h`` attribute set to *height*.
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"""
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return self._add_tr(h=height)
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@property
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def bandCol(self):
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return self._get_boolean_property("bandCol")
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@bandCol.setter
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def bandCol(self, value):
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self._set_boolean_property("bandCol", value)
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@property
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def bandRow(self):
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return self._get_boolean_property("bandRow")
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@bandRow.setter
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def bandRow(self, value):
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self._set_boolean_property("bandRow", value)
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@property
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def firstCol(self):
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return self._get_boolean_property("firstCol")
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@firstCol.setter
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def firstCol(self, value):
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self._set_boolean_property("firstCol", value)
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@property
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def firstRow(self):
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return self._get_boolean_property("firstRow")
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@firstRow.setter
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def firstRow(self, value):
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self._set_boolean_property("firstRow", value)
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def iter_tcs(self):
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"""Generate each `a:tc` element in this tbl.
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tc elements are generated left-to-right, top-to-bottom.
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"""
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return (tc for tr in self.tr_lst for tc in tr.tc_lst)
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@property
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def lastCol(self):
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return self._get_boolean_property("lastCol")
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@lastCol.setter
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def lastCol(self, value):
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self._set_boolean_property("lastCol", value)
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@property
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def lastRow(self):
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return self._get_boolean_property("lastRow")
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@lastRow.setter
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def lastRow(self, value):
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self._set_boolean_property("lastRow", value)
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@classmethod
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def new_tbl(cls, rows, cols, width, height, tableStyleId=None):
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"""Return a new ``<p:tbl>`` element tree."""
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# working hypothesis is this is the default table style GUID
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if tableStyleId is None:
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tableStyleId = "{5C22544A-7EE6-4342-B048-85BDC9FD1C3A}"
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xml = cls._tbl_tmpl() % (tableStyleId)
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tbl = parse_xml(xml)
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# add specified number of rows and columns
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rowheight = height // rows
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colwidth = width // cols
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for col in range(cols):
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# adjust width of last col to absorb any div error
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if col == cols - 1:
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colwidth = width - ((cols - 1) * colwidth)
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tbl.tblGrid.add_gridCol(width=colwidth)
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for row in range(rows):
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# adjust height of last row to absorb any div error
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if row == rows - 1:
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rowheight = height - ((rows - 1) * rowheight)
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tr = tbl.add_tr(height=rowheight)
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for col in range(cols):
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tr.add_tc()
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return tbl
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def tc(self, row_idx, col_idx):
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"""Return `a:tc` element at *row_idx*, *col_idx*."""
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return self.tr_lst[row_idx].tc_lst[col_idx]
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def _get_boolean_property(self, propname):
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"""
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Generalized getter for the boolean properties on the ``<a:tblPr>``
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child element. Defaults to False if *propname* attribute is missing
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or ``<a:tblPr>`` element itself is not present.
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"""
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tblPr = self.tblPr
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if tblPr is None:
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return False
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propval = getattr(tblPr, propname)
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return {True: True, False: False, None: False}[propval]
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def _set_boolean_property(self, propname, value):
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"""
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Generalized setter for boolean properties on the ``<a:tblPr>`` child
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element, setting *propname* attribute appropriately based on *value*.
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If *value* is True, the attribute is set to "1"; a tblPr child
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element is added if necessary. If *value* is False, the *propname*
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attribute is removed if present, allowing its default value of False
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to be its effective value.
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"""
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if value not in (True, False):
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raise ValueError(
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"assigned value must be either True or False, got %s" % value
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)
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tblPr = self.get_or_add_tblPr()
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setattr(tblPr, propname, value)
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@classmethod
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def _tbl_tmpl(cls):
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return (
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"<a:tbl %s>\n"
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' <a:tblPr firstRow="1" bandRow="1">\n'
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" <a:tableStyleId>%s</a:tableStyleId>\n"
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" </a:tblPr>\n"
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" <a:tblGrid/>\n"
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"</a:tbl>" % (nsdecls("a"), "%s")
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)
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class CT_TableCell(BaseOxmlElement):
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"""`a:tc` custom element class"""
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_tag_seq = ("a:txBody", "a:tcPr", "a:extLst")
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txBody = ZeroOrOne("a:txBody", successors=_tag_seq[1:])
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tcPr = ZeroOrOne("a:tcPr", successors=_tag_seq[2:])
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del _tag_seq
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gridSpan = OptionalAttribute("gridSpan", XsdInt, default=1)
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rowSpan = OptionalAttribute("rowSpan", XsdInt, default=1)
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hMerge = OptionalAttribute("hMerge", XsdBoolean, default=False)
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vMerge = OptionalAttribute("vMerge", XsdBoolean, default=False)
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@property
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def anchor(self):
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"""
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String held in ``anchor`` attribute of ``<a:tcPr>`` child element of
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this ``<a:tc>`` element.
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"""
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if self.tcPr is None:
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return None
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return self.tcPr.anchor
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@anchor.setter
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def anchor(self, anchor_enum_idx):
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"""
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Set value of anchor attribute on ``<a:tcPr>`` child element
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"""
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if anchor_enum_idx is None and self.tcPr is None:
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return
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tcPr = self.get_or_add_tcPr()
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tcPr.anchor = anchor_enum_idx
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def append_ps_from(self, spanned_tc):
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"""Append `a:p` elements taken from *spanned_tc*.
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Any non-empty paragraph elements in *spanned_tc* are removed and
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appended to the text-frame of this cell. If *spanned_tc* is left with
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no content after this process, a single empty `a:p` element is added
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to ensure the cell is compliant with the spec.
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"""
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source_txBody = spanned_tc.get_or_add_txBody()
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target_txBody = self.get_or_add_txBody()
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# ---if source is empty, there's nothing to do---
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if source_txBody.is_empty:
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return
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# ---a single empty paragraph in target is overwritten---
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if target_txBody.is_empty:
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target_txBody.clear_content()
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for p in source_txBody.p_lst:
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target_txBody.append(p)
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# ---neither source nor target can be left without ps---
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source_txBody.unclear_content()
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target_txBody.unclear_content()
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@property
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def col_idx(self):
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"""Offset of this cell's column in its table."""
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# ---tc elements come before any others in `a:tr` element---
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return self.getparent().index(self)
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@property
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def is_merge_origin(self):
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"""True if cell is top-left in merged cell range."""
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if self.gridSpan > 1 and not self.vMerge:
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return True
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if self.rowSpan > 1 and not self.hMerge:
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return True
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return False
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@property
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def is_spanned(self):
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"""True if cell is in merged cell range but not merge origin cell."""
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return self.hMerge or self.vMerge
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@property
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def marT(self):
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"""
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Read/write integer top margin value represented in ``marT`` attribute
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of the ``<a:tcPr>`` child element of this ``<a:tc>`` element. If the
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attribute is not present, the default value ``45720`` (0.05 inches)
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is returned for top and bottom; ``91440`` (0.10 inches) is the
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default for left and right. Assigning |None| to any ``marX``
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property clears that attribute from the element, effectively setting
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it to the default value.
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"""
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return self._get_marX("marT", 45720)
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@marT.setter
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def marT(self, value):
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self._set_marX("marT", value)
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@property
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def marR(self):
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"""
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Right margin value represented in ``marR`` attribute.
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"""
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return self._get_marX("marR", 91440)
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@marR.setter
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def marR(self, value):
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self._set_marX("marR", value)
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@property
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def marB(self):
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"""
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Bottom margin value represented in ``marB`` attribute.
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"""
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return self._get_marX("marB", 45720)
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@marB.setter
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def marB(self, value):
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self._set_marX("marB", value)
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@property
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def marL(self):
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"""
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Left margin value represented in ``marL`` attribute.
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"""
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return self._get_marX("marL", 91440)
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@marL.setter
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def marL(self, value):
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self._set_marX("marL", value)
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@classmethod
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def new(cls):
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"""Return a new `a:tc` element subtree."""
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xml = cls._tc_tmpl()
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tc = parse_xml(xml)
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return tc
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@property
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def row_idx(self):
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"""Offset of this cell's row in its table."""
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return self.getparent().row_idx
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@property
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def tbl(self):
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"""Table element this cell belongs to."""
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return self.xpath("ancestor::a:tbl")[0]
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@property
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def text(self):
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"""str text contained in cell"""
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# ---note this shadows lxml _Element.text---
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txBody = self.txBody
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if txBody is None:
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return ""
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return "\n".join([p.text for p in txBody.p_lst])
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def _get_marX(self, attr_name, default):
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"""
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Generalized method to get margin values.
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"""
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if self.tcPr is None:
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return Emu(default)
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return Emu(int(self.tcPr.get(attr_name, default)))
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def _new_txBody(self):
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return CT_TextBody.new_a_txBody()
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def _set_marX(self, marX, value):
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"""
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Set value of marX attribute on ``<a:tcPr>`` child element. If *marX*
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is |None|, the marX attribute is removed. *marX* is a string, one of
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``('marL', 'marR', 'marT', 'marB')``.
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"""
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if value is None and self.tcPr is None:
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return
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tcPr = self.get_or_add_tcPr()
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setattr(tcPr, marX, value)
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@classmethod
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def _tc_tmpl(cls):
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return (
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"<a:tc %s>\n"
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" <a:txBody>\n"
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" <a:bodyPr/>\n"
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" <a:lstStyle/>\n"
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" <a:p/>\n"
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" </a:txBody>\n"
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" <a:tcPr/>\n"
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"</a:tc>" % nsdecls("a")
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)
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class CT_TableCellProperties(BaseOxmlElement):
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"""`a:tcPr` custom element class"""
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eg_fillProperties = ZeroOrOneChoice(
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(
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Choice("a:noFill"),
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Choice("a:solidFill"),
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Choice("a:gradFill"),
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Choice("a:blipFill"),
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Choice("a:pattFill"),
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Choice("a:grpFill"),
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),
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successors=("a:headers", "a:extLst"),
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)
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anchor = OptionalAttribute("anchor", MSO_VERTICAL_ANCHOR)
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marL = OptionalAttribute("marL", ST_Coordinate32)
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marR = OptionalAttribute("marR", ST_Coordinate32)
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marT = OptionalAttribute("marT", ST_Coordinate32)
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|
|
marB = OptionalAttribute("marB", ST_Coordinate32)
|
||
|
|
|
||
|
|
def _new_gradFill(self):
|
||
|
|
return CT_GradientFillProperties.new_gradFill()
|
||
|
|
|
||
|
|
|
||
|
|
class CT_TableCol(BaseOxmlElement):
|
||
|
|
"""
|
||
|
|
``<a:gridCol>`` custom element class
|
||
|
|
"""
|
||
|
|
|
||
|
|
w = RequiredAttribute("w", ST_Coordinate)
|
||
|
|
|
||
|
|
|
||
|
|
class CT_TableGrid(BaseOxmlElement):
|
||
|
|
"""
|
||
|
|
``<a:tblGrid>`` custom element class
|
||
|
|
"""
|
||
|
|
|
||
|
|
gridCol = ZeroOrMore("a:gridCol")
|
||
|
|
|
||
|
|
def add_gridCol(self, width):
|
||
|
|
"""
|
||
|
|
Return a reference to a newly created <a:gridCol> child element
|
||
|
|
having its ``w`` attribute set to *width*.
|
||
|
|
"""
|
||
|
|
return self._add_gridCol(w=width)
|
||
|
|
|
||
|
|
|
||
|
|
class CT_TableProperties(BaseOxmlElement):
|
||
|
|
"""
|
||
|
|
``<a:tblPr>`` custom element class
|
||
|
|
"""
|
||
|
|
|
||
|
|
bandRow = OptionalAttribute("bandRow", XsdBoolean, default=False)
|
||
|
|
bandCol = OptionalAttribute("bandCol", XsdBoolean, default=False)
|
||
|
|
firstRow = OptionalAttribute("firstRow", XsdBoolean, default=False)
|
||
|
|
firstCol = OptionalAttribute("firstCol", XsdBoolean, default=False)
|
||
|
|
lastRow = OptionalAttribute("lastRow", XsdBoolean, default=False)
|
||
|
|
lastCol = OptionalAttribute("lastCol", XsdBoolean, default=False)
|
||
|
|
|
||
|
|
|
||
|
|
class CT_TableRow(BaseOxmlElement):
|
||
|
|
"""
|
||
|
|
``<a:tr>`` custom element class
|
||
|
|
"""
|
||
|
|
|
||
|
|
tc = ZeroOrMore("a:tc", successors=("a:extLst",))
|
||
|
|
h = RequiredAttribute("h", ST_Coordinate)
|
||
|
|
|
||
|
|
def add_tc(self):
|
||
|
|
"""
|
||
|
|
Return a reference to a newly added minimal valid ``<a:tc>`` child
|
||
|
|
element.
|
||
|
|
"""
|
||
|
|
return self._add_tc()
|
||
|
|
|
||
|
|
@property
|
||
|
|
def row_idx(self):
|
||
|
|
"""Offset of this row in its table."""
|
||
|
|
return self.getparent().tr_lst.index(self)
|
||
|
|
|
||
|
|
def _new_tc(self):
|
||
|
|
return CT_TableCell.new()
|
||
|
|
|
||
|
|
|
||
|
|
class TcRange(object):
|
||
|
|
"""A 2D block of `a:tc` cell elements in a table.
|
||
|
|
|
||
|
|
This object assumes the structure of the underlying table does not change
|
||
|
|
during its lifetime. Structural changes in this context would be
|
||
|
|
insertion or removal of rows or columns.
|
||
|
|
|
||
|
|
The client is expected to create, use, and then abandon an instance in
|
||
|
|
the context of a single user operation that is known to have no
|
||
|
|
structural side-effects of this type.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def __init__(self, tc, other_tc):
|
||
|
|
self._tc = tc
|
||
|
|
self._other_tc = other_tc
|
||
|
|
|
||
|
|
@classmethod
|
||
|
|
def from_merge_origin(cls, tc):
|
||
|
|
"""Return instance created from merge-origin tc element."""
|
||
|
|
other_tc = tc.tbl.tc(
|
||
|
|
tc.row_idx + tc.rowSpan - 1, # ---other_row_idx
|
||
|
|
tc.col_idx + tc.gridSpan - 1, # ---other_col_idx
|
||
|
|
)
|
||
|
|
return cls(tc, other_tc)
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def contains_merged_cell(self):
|
||
|
|
"""True if one or more cells in range are part of a merged cell."""
|
||
|
|
for tc in self.iter_tcs():
|
||
|
|
if tc.gridSpan > 1:
|
||
|
|
return True
|
||
|
|
if tc.rowSpan > 1:
|
||
|
|
return True
|
||
|
|
if tc.hMerge:
|
||
|
|
return True
|
||
|
|
if tc.vMerge:
|
||
|
|
return True
|
||
|
|
return False
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def dimensions(self):
|
||
|
|
"""(row_count, col_count) pair describing size of range."""
|
||
|
|
_, _, width, height = self._extents
|
||
|
|
return height, width
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def in_same_table(self):
|
||
|
|
"""True if both cells provided to constructor are in same table."""
|
||
|
|
if self._tc.tbl is self._other_tc.tbl:
|
||
|
|
return True
|
||
|
|
return False
|
||
|
|
|
||
|
|
def iter_except_left_col_tcs(self):
|
||
|
|
"""Generate each `a:tc` element not in leftmost column of range."""
|
||
|
|
for tr in self._tbl.tr_lst[self._top : self._bottom]:
|
||
|
|
for tc in tr.tc_lst[self._left + 1 : self._right]:
|
||
|
|
yield tc
|
||
|
|
|
||
|
|
def iter_except_top_row_tcs(self):
|
||
|
|
"""Generate each `a:tc` element in non-first rows of range."""
|
||
|
|
for tr in self._tbl.tr_lst[self._top + 1 : self._bottom]:
|
||
|
|
for tc in tr.tc_lst[self._left : self._right]:
|
||
|
|
yield tc
|
||
|
|
|
||
|
|
def iter_left_col_tcs(self):
|
||
|
|
"""Generate each `a:tc` element in leftmost column of range."""
|
||
|
|
col_idx = self._left
|
||
|
|
for tr in self._tbl.tr_lst[self._top : self._bottom]:
|
||
|
|
yield tr.tc_lst[col_idx]
|
||
|
|
|
||
|
|
def iter_tcs(self):
|
||
|
|
"""Generate each `a:tc` element in this range.
|
||
|
|
|
||
|
|
Cell elements are generated left-to-right, top-to-bottom.
|
||
|
|
"""
|
||
|
|
return (
|
||
|
|
tc
|
||
|
|
for tr in self._tbl.tr_lst[self._top : self._bottom]
|
||
|
|
for tc in tr.tc_lst[self._left : self._right]
|
||
|
|
)
|
||
|
|
|
||
|
|
def iter_top_row_tcs(self):
|
||
|
|
"""Generate each `a:tc` element in topmost row of range."""
|
||
|
|
tr = self._tbl.tr_lst[self._top]
|
||
|
|
for tc in tr.tc_lst[self._left : self._right]:
|
||
|
|
yield tc
|
||
|
|
|
||
|
|
def move_content_to_origin(self):
|
||
|
|
"""Move all paragraphs in range to origin cell."""
|
||
|
|
tcs = list(self.iter_tcs())
|
||
|
|
origin_tc = tcs[0]
|
||
|
|
for spanned_tc in tcs[1:]:
|
||
|
|
origin_tc.append_ps_from(spanned_tc)
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def _bottom(self):
|
||
|
|
"""Index of row following last row of range"""
|
||
|
|
_, top, _, height = self._extents
|
||
|
|
return top + height
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def _extents(self):
|
||
|
|
"""A (left, top, width, height) tuple describing range extents.
|
||
|
|
|
||
|
|
Note this is normalized to accommodate the various orderings of the
|
||
|
|
corner cells provided on construction, which may be in any of four
|
||
|
|
configurations such as (top-left, bottom-right),
|
||
|
|
(bottom-left, top-right), etc.
|
||
|
|
"""
|
||
|
|
|
||
|
|
def start_and_size(idx, other_idx):
|
||
|
|
"""Return beginning and length of range based on two indexes."""
|
||
|
|
return min(idx, other_idx), abs(idx - other_idx) + 1
|
||
|
|
|
||
|
|
tc, other_tc = self._tc, self._other_tc
|
||
|
|
|
||
|
|
left, width = start_and_size(tc.col_idx, other_tc.col_idx)
|
||
|
|
top, height = start_and_size(tc.row_idx, other_tc.row_idx)
|
||
|
|
|
||
|
|
return left, top, width, height
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def _left(self):
|
||
|
|
"""Index of leftmost column in range"""
|
||
|
|
left, _, _, _ = self._extents
|
||
|
|
return left
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def _right(self):
|
||
|
|
"""Index of column following the last column in range"""
|
||
|
|
left, _, width, _ = self._extents
|
||
|
|
return left + width
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def _tbl(self):
|
||
|
|
"""`a:tbl` element containing this cell range"""
|
||
|
|
return self._tc.tbl
|
||
|
|
|
||
|
|
@lazyproperty
|
||
|
|
def _top(self):
|
||
|
|
"""Index of topmost row in range"""
|
||
|
|
_, top, _, _ = self._extents
|
||
|
|
return top
|