module PDF
  class Inspector
    class ExtGState < Inspector
      attr_accessor :extgstates

      def initialize
        @extgstates = []
      end

      def page=(page)
        page.graphic_states.each do |label, stream|
          @extgstates << {
                          :opacity => stream[:ca],
                          :stroke_opacity => stream[:CA],
                          :soft_mask => stream[:SMask]
                          }
        end
      end
    end
  end
end