/usr/lib/python3/dist-packages/xlsxwriter/chart_bar.py is in python3-xlsxwriter 0.7.3-1.
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#
# ChartBar - A class for writing the Excel XLSX Bar charts.
#
# Copyright 2013-2015, John McNamara, jmcnamara@cpan.org
#
from . import chart
from warnings import warn
class ChartBar(chart.Chart):
"""
A class for writing the Excel XLSX Bar charts.
"""
###########################################################################
#
# Public API.
#
###########################################################################
def __init__(self, options=None):
"""
Constructor.
"""
super(ChartBar, self).__init__()
if options is None:
options = {}
self.subtype = options.get('subtype')
if not self.subtype:
self.subtype = 'clustered'
self.cat_axis_position = 'l'
self.val_axis_position = 'b'
self.horiz_val_axis = 0
self.horiz_cat_axis = 1
self.show_crosses = 0
# Override and reset the default axis values.
self.x_axis['defaults']['major_gridlines'] = {'visible': 1}
self.y_axis['defaults']['major_gridlines'] = {'visible': 0}
if self.subtype == 'percent_stacked':
self.x_axis['defaults']['num_format'] = '0%'
# Set the available data label positions for this chart type.
self.label_position_default = 'outside_end'
self.label_positions = {
'center': 'ctr',
'inside_base': 'inBase',
'inside_end': 'inEnd',
'outside_end': 'outEnd'}
self.set_x_axis({})
self.set_y_axis({})
def combine(self, chart=None):
"""
Create a combination chart with a secondary chart.
Note: Override parent method to add an extra check that is required
for Bar charts to ensure that their combined chart is on a secondary
axis.
Args:
chart: The secondary chart to combine with the primary chart.
Returns:
Nothing.
"""
if chart is None:
return
if not chart.is_secondary:
warn('Charts combined with Bar charts must be on a secondary axis')
self.combined = chart
###########################################################################
#
# Private API.
#
###########################################################################
def _write_chart_type(self, args):
# Override the virtual superclass method with a chart specific method.
if args['primary_axes']:
# Reverse X and Y axes for Bar charts.
tmp = self.y_axis
self.y_axis = self.x_axis
self.x_axis = tmp
if self.y2_axis['position'] == 'r':
self.y2_axis['position'] = 't'
# Write the c:barChart element.
self._write_bar_chart(args)
def _write_bar_chart(self, args):
# Write the <c:barChart> element.
if args['primary_axes']:
series = self._get_primary_axes_series()
else:
series = self._get_secondary_axes_series()
if not len(series):
return
subtype = self.subtype
if subtype == 'percent_stacked':
subtype = 'percentStacked'
# Set a default overlap for stacked charts.
if 'stacked' in self.subtype:
if self.series_overlap_1 is None:
self.series_overlap_1 = 100
self._xml_start_tag('c:barChart')
# Write the c:barDir element.
self._write_bar_dir()
# Write the c:grouping element.
self._write_grouping(subtype)
# Write the c:ser elements.
for data in series:
self._write_ser(data)
# Write the c:marker element.
self._write_marker_value()
# Write the c:gapWidth element.
if args['primary_axes']:
self._write_gap_width(self.series_gap_1)
else:
self._write_gap_width(self.series_gap_2)
# Write the c:overlap element.
if args['primary_axes']:
self._write_overlap(self.series_overlap_1)
else:
self._write_overlap(self.series_overlap_2)
# Write the c:axId elements
self._write_axis_ids(args)
self._xml_end_tag('c:barChart')
###########################################################################
#
# XML methods.
#
###########################################################################
def _write_bar_dir(self):
# Write the <c:barDir> element.
val = 'bar'
attributes = [('val', val)]
self._xml_empty_tag('c:barDir', attributes)
def _write_err_dir(self, val):
# Overridden from Chart class since it is not used in Bar charts.
pass
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