module Axlsx

  class CatAxisData < SimpleTypedList
    def initialize(data=[])
      super Object
      @list.concat data if data.is_a?(Array)
    end

    def to_xml(xml)
      xml.send('c:cat') {
        xml.send('c:strRef') {
          xml.send('c:f', Axlsx::cell_range(@list))
          xml.send('c:strCache') {
            xml.send('c:ptCount', :val=>size)
            each_with_index do |item, index|
              v = item.is_a?(Cell) ? item.value : item
              xml.send('c:pt', :idx=>index) {
                xml.send('c:v', v)
              }                          
            end
          }
        }
      }
    end

  end
  
end