pie.rb in write_xlsx-1.11.2

- old
+ new

@@ -121,12 +121,11 @@
       # Over-ridden method to add <c:txPr> to legend.
       #
       # Write the <c:legend> element.
       #
       def write_legend
-        position = @legend.position
-        allowed  = %w[right left top bottom]
+        allowed = %w[right left top bottom]
         delete_series = @legend.delete_series || []
 
         if @legend.position =~ /^overlay_/
           position = @legend.position.sub(/^overlay_/, '')
           overlay = true
@@ -204,9 +203,22 @@
       #
       # Write the <c:firstSliceAng> element.
       #
       def write_first_slice_ang
         @writer.empty_tag('c:firstSliceAng', [['val', @rotation]])
+      end
+
+      #
+      # Write the <c:showLeaderLines> element. This is for Pie/Doughnut charts.
+      # Other chart types only supported leader lines after Excel 2015 via an
+      # extension element.
+      #
+      def write_show_leader_lines
+        val  = 1
+
+        attributes = [['val', val]]
+
+        @writer.empty_tag('c:showLeaderLines', attributes)
       end
     end
   end
 end