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module Axlsx
# <c:dLbls>
#<c:dLblPos val="outEnd"/>
#<c:showLegendKey val="0"/>
#<c:showVal val="0"/>
#<c:showCatName val="1"/>
#<c:showSerName val="0"/>
#<c:showPercent val="1"/>
#<c:showBubbleSize val="0"/>
#<c:showLeaderLines val="1"/>
#</c:dLbls>
#The DLbls class manages serialization of data labels
class DLbls
BOOLEAN_ATTRIBUTES = [:show_legend_key, :show_val, :show_cat_name, :show_ser_name, :show_percent, :show_bubble_size, :show_leader_lines]
# creates a new DLbls object
def initialize(options={})
d_lbl_pos = :best_fit
initialize_defaults
options.each do |o|
self.send("#{o[0]}=", o[1]) if self.respond_to? "#{o[0]}="
end
end
def initialize_defaults
BOOLEAN_ATTRIBUTES.each do |attr|
self.send("#{attr}=", false)
end
end
attr_reader :d_lbl_pos
# @see DLbls#d_lbl_pos
# Assigns the label postion for this data labels on this chart.
# Allowed positions are :bestFilt, :b, :ctr, :inBase, :inEnd, :l,
# :outEnd, :r and :t
# The default is :best_fit
# @param [Symbol] label_postion the postion you want to use.
def d_lbl_pos=(label_position)
Axlsx::RestrictionValidator.validate 'DLbls#d_lbl_pos', [:bestFit, :b, :ctr, :inBase, :inEnd, :l, :outEnd, :r, :t], label_position
@d_lbl_pos = label_position
end
BOOLEAN_ATTRIBUTES.each do |attr|
class_eval %{
attr_reader :#{attr}
def #{attr}=(v)
Axlsx::validate_boolean(v)
@#{attr} = v
end
}
end
# serializes the data labels
# @return [String]
def to_xml_string(str = '')
str << '<c:dLbls>'
instance_values.each { |name, value| str << "<c:#{Axlsx::camel(name, false)} val='#{value}' />" }
str << '</c:dLbls>'
end
end
end
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