bubble_series.rb in caxlsx-4.0.0

- old
+ new

@@ -1,5 +1,7 @@
+# frozen_string_literal: true
+
 module Axlsx
   # A BubbleSeries defines the x/y position and bubble size of data in the chart
   # @note The recommended way to manage series is to use Chart#add_series
   # @see Worksheet#add_chart
   # @see Chart#add_series
@@ -24,31 +26,31 @@
 
     # Creates a new BubbleSeries
     def initialize(chart, options = {})
       @xData, @yData, @bubbleSize = nil
       super(chart, options)
-      @xData = AxDataSource.new(:tag_name => :xVal, :data => options[:xData]) unless options[:xData].nil?
-      @yData = NumDataSource.new({ :tag_name => :yVal, :data => options[:yData] }) unless options[:yData].nil?
-      @bubbleSize = NumDataSource.new({ :tag_name => :bubbleSize, :data => options[:bubbleSize] }) unless options[:bubbleSize].nil?
+      @xData = AxDataSource.new(tag_name: :xVal, data: options[:xData]) unless options[:xData].nil?
+      @yData = NumDataSource.new({ tag_name: :yVal, data: options[:yData] }) unless options[:yData].nil?
+      @bubbleSize = NumDataSource.new({ tag_name: :bubbleSize, data: options[:bubbleSize] }) unless options[:bubbleSize].nil?
     end
 
     # @see color
     def color=(v)
       @color = v
     end
 
     # Serializes the object
     # @param [String] str
     # @return [String]
-    def to_xml_string(str = '')
+    def to_xml_string(str = +'')
       super(str) do
         # needs to override the super color here to push in ln/and something else!
         if color
           str << '<c:spPr><a:solidFill>'
-          str << ('<a:srgbClr val="' << color << '"/>')
+          str << '<a:srgbClr val="' << color << '"/>'
           str << '</a:solidFill>'
           str << '<a:ln><a:solidFill>'
-          str << ('<a:srgbClr val="' << color << '"/></a:solidFill></a:ln>')
+          str << '<a:srgbClr val="' << color << '"/></a:solidFill></a:ln>'
           str << '</c:spPr>'
         end
         @xData.to_xml_string(str) unless @xData.nil?
         @yData.to_xml_string(str) unless @yData.nil?
         @bubbleSize.to_xml_string(str) unless @bubbleSize.nil?