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Contents
# -*- coding: utf-8 -*-
###############################################################################
#
# Column - A class for writing Excel Column charts.
#
# Used in conjunction with Chart.
#
# See formatting note in Chart.
#
# Copyright 2000-2011, John McNamara, jmcnamara@cpan.org
# Convert to ruby by Hideo NAKAMURA, cxn03651@msj.biglobe.ne.jp
#
require 'write_xlsx/package/xml_writer_simple'
require 'write_xlsx/utility'
module Writexlsx
class Chart
# The Column chart module also supports the following sub-types:
#
# stacked
# percent_stacked
# These can be specified at creation time via the add_chart() Worksheet
# method:
#
# chart = workbook.add_chart( :type => 'column', :subtype => 'stacked' )
#
class Column < self
include Writexlsx::Utility
def initialize(subtype)
super(subtype)
@subtype = subtype || 'clustered'
@horiz_val_axis = 0
# Override and reset the default axis values.
if @subtype == 'percent_stacked'
@y_axis.defaults[:num_format] = '0%'
end
set_y_axis
# Set the available data label positions for this chart type.
@label_position_default = 'outside_end'
@label_positions = {
'center' => 'ctr',
'inside_base' => 'inBase',
'inside_end' => 'inEnd',
'outside_end' => 'outEnd'
}
end
#
# Override the virtual superclass method with a chart specific method.
#
def write_chart_type(params)
# Write the c:barChart element.
write_bar_chart(params)
end
#
# Write the <c:barDir> element.
#
def write_bar_dir
@writer.empty_tag('c:barDir', [ ['val', 'col'] ])
end
#
# Write the <c:errDir> element. Overridden from Chart class since it is not
# used in Bar charts.
#
def write_err_dir(direction)
# do nothing
end
end
end
end
Version data entries
23 entries across 23 versions & 1 rubygems