123 lines
3.2 KiB
Python
123 lines
3.2 KiB
Python
|
###############################################################################
|
||
|
|
#
|
||
|
|
# ChartLine - A class for writing the Excel XLSX Line charts.
|
||
|
|
#
|
||
|
|
# Copyright 2013-2019, John McNamara, jmcnamara@cpan.org
|
||
|
|
#
|
||
|
|
|
||
|
|
from . import chart
|
||
|
|
|
||
|
|
|
||
|
|
class ChartLine(chart.Chart):
|
||
|
|
"""
|
||
|
|
A class for writing the Excel XLSX Line charts.
|
||
|
|
|
||
|
|
|
||
|
|
"""
|
||
|
|
|
||
|
|
###########################################################################
|
||
|
|
#
|
||
|
|
# Public API.
|
||
|
|
#
|
||
|
|
###########################################################################
|
||
|
|
|
||
|
|
def __init__(self, options=None):
|
||
|
|
"""
|
||
|
|
Constructor.
|
||
|
|
|
||
|
|
"""
|
||
|
|
super(ChartLine, self).__init__()
|
||
|
|
|
||
|
|
self.default_marker = {'type': 'none'}
|
||
|
|
self.smooth_allowed = True
|
||
|
|
|
||
|
|
# Set the available data label positions for this chart type.
|
||
|
|
self.label_position_default = 'right'
|
||
|
|
self.label_positions = {
|
||
|
|
'center': 'ctr',
|
||
|
|
'right': 'r',
|
||
|
|
'left': 'l',
|
||
|
|
'above': 't',
|
||
|
|
'below': 'b',
|
||
|
|
# For backward compatibility.
|
||
|
|
'top': 't',
|
||
|
|
'bottom': 'b'}
|
||
|
|
|
||
|
|
###########################################################################
|
||
|
|
#
|
||
|
|
# Private API.
|
||
|
|
#
|
||
|
|
###########################################################################
|
||
|
|
|
||
|
|
def _write_chart_type(self, args):
|
||
|
|
# Override the virtual superclass method with a chart specific method.
|
||
|
|
# Write the c:lineChart element.
|
||
|
|
self._write_line_chart(args)
|
||
|
|
|
||
|
|
###########################################################################
|
||
|
|
#
|
||
|
|
# XML methods.
|
||
|
|
#
|
||
|
|
###########################################################################
|
||
|
|
|
||
|
|
def _write_line_chart(self, args):
|
||
|
|
# Write the <c:lineChart> element.
|
||
|
|
|
||
|
|
if args['primary_axes']:
|
||
|
|
series = self._get_primary_axes_series()
|
||
|
|
else:
|
||
|
|
series = self._get_secondary_axes_series()
|
||
|
|
|
||
|
|
if not len(series):
|
||
|
|
return
|
||
|
|
|
||
|
|
self._xml_start_tag('c:lineChart')
|
||
|
|
|
||
|
|
# Write the c:grouping element.
|
||
|
|
self._write_grouping('standard')
|
||
|
|
|
||
|
|
# Write the series elements.
|
||
|
|
for data in series:
|
||
|
|
self._write_ser(data)
|
||
|
|
|
||
|
|
# Write the c:dropLines element.
|
||
|
|
self._write_drop_lines()
|
||
|
|
|
||
|
|
# Write the c:hiLowLines element.
|
||
|
|
self._write_hi_low_lines()
|
||
|
|
|
||
|
|
# Write the c:upDownBars element.
|
||
|
|
self._write_up_down_bars()
|
||
|
|
|
||
|
|
# Write the c:marker element.
|
||
|
|
self._write_marker_value()
|
||
|
|
|
||
|
|
# Write the c:axId elements
|
||
|
|
self._write_axis_ids(args)
|
||
|
|
|
||
|
|
self._xml_end_tag('c:lineChart')
|
||
|
|
|
||
|
|
def _write_d_pt_point(self, index, point):
|
||
|
|
# Write an individual <c:dPt> element. Override the parent method to
|
||
|
|
# add markers.
|
||
|
|
|
||
|
|
self._xml_start_tag('c:dPt')
|
||
|
|
|
||
|
|
# Write the c:idx element.
|
||
|
|
self._write_idx(index)
|
||
|
|
|
||
|
|
self._xml_start_tag('c:marker')
|
||
|
|
|
||
|
|
# Write the c:spPr element.
|
||
|
|
self._write_sp_pr(point)
|
||
|
|
|
||
|
|
self._xml_end_tag('c:marker')
|
||
|
|
|
||
|
|
self._xml_end_tag('c:dPt')
|
||
|
|
|
||
|
|
def _write_marker_value(self):
|
||
|
|
# Write the <c:marker> element without a sub-element.
|
||
|
|
attributes = [('val', 1)]
|
||
|
|
|
||
|
|
self._xml_empty_tag('c:marker', attributes)
|