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118 lines
2.7 KiB
118 lines
2.7 KiB
# Copyright (c) 2010-2022 openpyxl
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from collections import OrderedDict
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from openpyxl.descriptors import (
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Bool,
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String,
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Sequence,
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Alias,
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Convertible,
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)
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from openpyxl.descriptors.excel import ExtensionList
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from openpyxl.descriptors.serialisable import Serialisable
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from .rule import Rule
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from openpyxl.worksheet.cell_range import MultiCellRange
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class ConditionalFormatting(Serialisable):
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tagname = "conditionalFormatting"
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sqref = Convertible(expected_type=MultiCellRange)
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cells = Alias("sqref")
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pivot = Bool(allow_none=True)
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cfRule = Sequence(expected_type=Rule)
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rules = Alias("cfRule")
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def __init__(self, sqref=(), pivot=None, cfRule=(), extLst=None):
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self.sqref = sqref
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self.pivot = pivot
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self.cfRule = cfRule
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def __eq__(self, other):
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if not isinstance(other, self.__class__):
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return False
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return self.sqref == other.sqref
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def __hash__(self):
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return hash(str(self.sqref))
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def __repr__(self):
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return "<{cls} {cells}>".format(cls=self.__class__.__name__, cells=self.sqref)
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def __contains__(self, coord):
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"""
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Check whether a certain cell is affected by the formatting
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"""
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return coord in self.sqref
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class ConditionalFormattingList(object):
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"""Conditional formatting rules."""
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def __init__(self):
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self._cf_rules = OrderedDict()
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self.max_priority = 0
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def add(self, range_string, cfRule):
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"""Add a rule such as ColorScaleRule, FormulaRule or CellIsRule
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The priority will be added automatically.
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"""
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cf = range_string
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if isinstance(range_string, str):
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cf = ConditionalFormatting(range_string)
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if not isinstance(cfRule, Rule):
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raise ValueError("Only instances of openpyxl.formatting.rule.Rule may be added")
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rule = cfRule
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self.max_priority += 1
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if not rule.priority:
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rule.priority = self.max_priority
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self._cf_rules.setdefault(cf, []).append(rule)
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def __bool__(self):
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return bool(self._cf_rules)
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__nonzero = __bool__
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def __len__(self):
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return len(self._cf_rules)
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def __iter__(self):
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for cf, rules in self._cf_rules.items():
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cf.rules = rules
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yield cf
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def __getitem__(self, key):
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"""
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Get the rules for a cell range
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"""
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if isinstance(key, str):
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key = ConditionalFormatting(sqref=key)
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return self._cf_rules[key]
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def __delitem__(self, key):
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key = ConditionalFormatting(sqref=key)
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del self._cf_rules[key]
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def __setitem__(self, key, rule):
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"""
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Add a rule for a cell range
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"""
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self.add(key, rule)
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