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# Copyright (c) 2010-2024 openpyxl
from collections import OrderedDict
from operator import attrgetter
from openpyxl.descriptors import (
Typed,
Integer,
Alias,
MinMax,
Bool,
Set,
)
from openpyxl.descriptors.sequence import ValueSequence
from openpyxl.descriptors.serialisable import Serialisable
from ._3d import _3DBase
from .data_source import AxDataSource, NumRef
from .layout import Layout
from .legend import Legend
from .reference import Reference
from .series_factory import SeriesFactory
from .series import attribute_mapping
from .shapes import GraphicalProperties
from .title import TitleDescriptor
class AxId(Serialisable):
val = Integer()
def __init__(self, val):
self.val = val
def PlotArea():
from .chartspace import PlotArea
return PlotArea()
class ChartBase(Serialisable):
"""
Base class for all charts
"""
legend = Typed(expected_type=Legend, allow_none=True)
layout = Typed(expected_type=Layout, allow_none=True)
roundedCorners = Bool(allow_none=True)
axId = ValueSequence(expected_type=int)
visible_cells_only = Bool(allow_none=True)
display_blanks = Set(values=['span', 'gap', 'zero'])
graphical_properties = Typed(expected_type=GraphicalProperties, allow_none=True)
_series_type = ""
ser = ()
series = Alias('ser')
title = TitleDescriptor()
anchor = "E15" # default anchor position
width = 15 # in cm, approx 5 rows
height = 7.5 # in cm, approx 14 rows
_id = 1
_path = "/xl/charts/chart{0}.xml"
style = MinMax(allow_none=True, min=1, max=48)
mime_type = "application/vnd.openxmlformats-officedocument.drawingml.chart+xml"
graphical_properties = Typed(expected_type=GraphicalProperties, allow_none=True) # mapped to chartspace
__elements__ = ()
def __init__(self, axId=(), **kw):
self._charts = [self]
self.title = None
self.layout = None
self.roundedCorners = None
self.legend = Legend()
self.graphical_properties = None
self.style = None
self.plot_area = PlotArea()
self.axId = axId
self.display_blanks = 'gap'
self.pivotSource = None
self.pivotFormats = ()
self.visible_cells_only = True
self.idx_base = 0
self.graphical_properties = None
super().__init__()
def __hash__(self):
"""
Just need to check for identity
"""
return id(self)
def __iadd__(self, other):
"""
Combine the chart with another one
"""
if not isinstance(other, ChartBase):
raise TypeError("Only other charts can be added")
self._charts.append(other)
return self
def to_tree(self, namespace=None, tagname=None, idx=None):
self.axId = [id for id in self._axes]
if self.ser is not None:
for s in self.ser:
s.__elements__ = attribute_mapping[self._series_type]
return super().to_tree(tagname, idx)
def _reindex(self):
"""
Normalise and rebase series: sort by order and then rebase order
"""
# sort data series in order and rebase
ds = sorted(self.series, key=attrgetter("order"))
for idx, s in enumerate(ds):
s.order = idx
self.series = ds
def _write(self):
from .chartspace import ChartSpace, ChartContainer
self.plot_area.layout = self.layout
idx_base = self.idx_base
for chart in self._charts:
if chart not in self.plot_area._charts:
chart.idx_base = idx_base
idx_base += len(chart.series)
self.plot_area._charts = self._charts
container = ChartContainer(plotArea=self.plot_area, legend=self.legend, title=self.title)
if isinstance(chart, _3DBase):
container.view3D = chart.view3D
container.floor = chart.floor
container.sideWall = chart.sideWall
container.backWall = chart.backWall
container.plotVisOnly = self.visible_cells_only
container.dispBlanksAs = self.display_blanks
container.pivotFmts = self.pivotFormats
cs = ChartSpace(chart=container)
cs.style = self.style
cs.roundedCorners = self.roundedCorners
cs.pivotSource = self.pivotSource
cs.spPr = self.graphical_properties
return cs.to_tree()
@property
def _axes(self):
x = getattr(self, "x_axis", None)
y = getattr(self, "y_axis", None)
z = getattr(self, "z_axis", None)
return OrderedDict([(axis.axId, axis) for axis in (x, y, z) if axis])
def set_categories(self, labels):
"""
Set the categories / x-axis values
"""
if not isinstance(labels, Reference):
labels = Reference(range_string=labels)
for s in self.ser:
s.cat = AxDataSource(numRef=NumRef(f=labels))
def add_data(self, data, from_rows=False, titles_from_data=False):
"""
Add a range of data in a single pass.
The default is to treat each column as a data series.
"""
if not isinstance(data, Reference):
data = Reference(range_string=data)
if from_rows:
values = data.rows
else:
values = data.cols
for ref in values:
series = SeriesFactory(ref, title_from_data=titles_from_data)
self.series.append(series)
def append(self, value):
"""Append a data series to the chart"""
l = self.series[:]
l.append(value)
self.series = l
@property
def path(self):
return self._path.format(self._id)
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