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# encoding: UTF-8
module Axlsx
# A GradientFill defines the color and positioning for gradiant cell fill.
# @see Open Office XML Part 1 §18.8.24
class GradientFill
# The type of gradient.
# @note
# valid options are
# :linear
# :path
# @return [Symbol]
attr_reader :type
# Angle of the linear gradient
# @return [Float]
attr_reader :degree
# Percentage format left
# @return [Float]
attr_reader :left
# Percentage format right
# @return [Float]
attr_reader :right
# Percentage format top
# @return [Float]
attr_reader :top
# Percentage format bottom
# @return [Float]
attr_reader :bottom
# Collection of stop objects
# @return [SimpleTypedList]
attr_reader :stop
# Creates a new GradientFill object
# @option options [Symbol] type
# @option options [Float] degree
# @option options [Float] left
# @option options [Float] right
# @option options [Float] top
# @option options [Float] bottom
def initialize(options={})
options[:type] ||= :linear
options.each do |o|
self.send("#{o[0]}=", o[1]) if self.respond_to? o[0]
end
@stop = SimpleTypedList.new GradientStop
end
# @see type
def type=(v) Axlsx::validate_gradient_type v; @type = v end
# @see degree
def degree=(v) Axlsx::validate_float v; @degree = v end
# @see left
def left=(v) DataTypeValidator.validate "GradientFill.left", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @left = v end
# @see right
def right=(v) DataTypeValidator.validate "GradientFill.right", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @right = v end
# @see top
def top=(v) DataTypeValidator.validate "GradientFill.top", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @top = v end
# @see bottom
def bottom=(v) DataTypeValidator.validate "GradientFill.bottom", Float, v, lambda { |arg| arg >= 0.0 && arg <= 1.0}; @bottom= v end
def to_xml_string(str = '')
str << '<gradientFill'
h = self.instance_values.reject { |k,v| k.to_sym == :stop }
str << h.map { |key, value| '' << key.to_s << '="' << value.to_s << '"' }.join(' ')
str << '>'
@stop.each { |s| s.to_xml_string(str) }
str << '</gradientFill>'
end
# Serializes the gradientFill
# @param [Nokogiri::XML::Builder] xml The document builder instance this objects xml will be added to.
# @return [String]
def to_xml(xml)
xml.gradientFill(self.instance_values.reject { |k,v| k.to_sym == :stop }) {
@stop.each { |s| s.to_xml(xml) }
}
end
end
end
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