lib/write_xlsx/chartsheet.rb in write_xlsx-1.11.1 vs lib/write_xlsx/chartsheet.rb in write_xlsx-1.11.2

@@ -52,10 +52,12 @@
           write_page_setup
           # Write the headerFooter element.
           write_header_footer
           # Write the drawing element.
           write_drawings
+          # Write the legaacyDrawingHF element.
+          write_legacy_drawing_hf
           # Close the worksheet tag.
         end
       end
     end
 
@@ -143,10 +145,14 @@
 
     def show_blanks_as(*args)
       @chart.show_blanks_as(*args)
     end
 
+    def show_na_as_empty_cell
+      @chart.show_na_as_empty_cell(*args)
+    end
+
     def show_hidden_data(*args)
       @chart.show_hidden_data(*args)
     end
 
     def set_size(*args)
@@ -183,10 +189,13 @@
 
       @drawing_links << ['/chart', "../charts/chart#{chart_id}.xml"]
     end
 
     def external_links
-      [@external_drawing_links]
+      [
+        @external_drawing_links,
+        @external_vml_links
+      ]
     end
 
     private
 
     #