openpyxl.chart.reference 源代码

from __future__ import absolute_import
# Copyright (c) 2010-2019 openpyxl

from itertools import chain

from openpyxl.compat import unicode
from openpyxl.descriptors.serialisable import Serialisable
from openpyxl.descriptors import (
    MinMax,
    Typed,
    String,
    Strict,
)
from openpyxl.worksheet.worksheet import Worksheet
from openpyxl.utils import (
    get_column_letter,
    range_to_tuple,
    quote_sheetname
)


[文档]class DummyWorksheet: def __init__(self, title): self.title = title
[文档]class Reference(Strict): """ Normalise cell range references """ min_row = MinMax(min=1, max=1000000, expected_type=int) max_row = MinMax(min=1, max=1000000, expected_type=int) min_col = MinMax(min=1, max=16384, expected_type=int) max_col = MinMax(min=1, max=16384, expected_type=int) range_string = String(allow_none=True) def __init__(self, worksheet=None, min_col=None, min_row=None, max_col=None, max_row=None, range_string=None ): if range_string is not None: sheetname, boundaries = range_to_tuple(range_string) min_col, min_row, max_col, max_row = boundaries worksheet = DummyWorksheet(sheetname) self.worksheet = worksheet self.min_col = min_col self.min_row = min_row if max_col is None: max_col = min_col self.max_col = max_col if max_row is None: max_row = min_row self.max_row = max_row def __repr__(self): return unicode(self) def __str__(self): fmt = u"{0}!${1}${2}:${3}${4}" if (self.min_col == self.max_col and self.min_row == self.max_row): fmt = u"{0}!${1}${2}" return fmt.format(self.sheetname, get_column_letter(self.min_col), self.min_row, get_column_letter(self.max_col), self.max_row ) __unicode__ = __str__ def __len__(self): if self.min_row == self.max_row: return 1 + self.max_col - self.min_col return 1 + self.max_row - self.min_row @property def rows(self): """ Return all cells in range by column """ for row in range(self.min_row, self.max_row+1): yield tuple('%s%d' % (get_column_letter(col), row) for col in range(self.min_col, self.max_col+1)) @property def cols(self): """ Return all cells in range by row """ for col in range(self.min_col, self.max_col+1): yield tuple('%s%d' % (get_column_letter(col), row) for row in range(self.min_row, self.max_row+1)) @property def cells(self): """ Return a flattened list of all cells (by column) """ return chain.from_iterable(self.cols)
[文档] def pop(self): """ Return and remove the first cell """ cell = next(self.cells) if self.min_row == self.max_row: self.min_col += 1 else: self.min_row += 1 return cell
@property def sheetname(self): return quote_sheetname(self.worksheet.title)