Add option to define a series color for the BarSeries (#81)

1 files changed, 18 insertions, 1 deletions

diff --git a/lib/axlsx/drawing/bar_series.rb b/lib/axlsx/drawing/bar_series.rb
index d266dd09..0e5d1168 100644
--- a/lib/axlsx/drawing/bar_series.rb
+++ b/lib/axlsx/drawing/bar_series.rb
@@ -22,12 +22,18 @@ module Axlsx
     # An array of rgb colors to apply to your bar chart.
     attr_reader :colors
 
+    # The fill color for this series.
+    # Red, green, and blue is expressed as sequence of hex digits, RRGGBB.
+    # @return [String]
+    attr_reader :series_color
+
     # Creates a new series
     # @option options [Array, SimpleTypedList] data
     # @option options [Array, SimpleTypedList] labels
     # @option options [String] title
     # @option options [String] shape
     # @option options [String] colors an array of colors to use when rendering each data point
+    # @option options [String] series_color a color to use when rendering series
     # @param [Chart] chart
     def initialize(chart, options={})
       @shape = :box
@@ -40,6 +46,10 @@ module Axlsx
     # @see colors
     def colors=(v) DataTypeValidator.validate "BarSeries.colors", [Array], v; @colors = v end
 
+    def series_color=(v)
+      @series_color = v
+    end
+
     # @see shape
     def shape=(v)
       RestrictionValidator.validate "BarSeries.shape", [:cone, :coneToMax, :box, :cylinder, :pyramid, :pyramidToMax], v
@@ -60,9 +70,16 @@ module Axlsx
           str << '</a:solidFill></c:spPr></c:dPt>'
         end
 
+        if series_color
+          str << '<c:spPr><a:solidFill>'
+          str << ('<a:srgbClr val="' << series_color << '"/>')
+          str << '</a:solidFill>'
+          str << '</c:spPr>'
+        end
+
         @labels.to_xml_string(str) unless @labels.nil?
         @data.to_xml_string(str) unless @data.nil?
-        # this is actually only required for shapes other than box 
+        # this is actually only required for shapes other than box
         str << ('<c:shape val="' << shape.to_s << '"></c:shape>')
       end
     end