# File gtk/sample/gtk-demo/editable_cells.rb, line 85
    def add_items
      item = Item.new(3, 'bottles of coke', true)
      @articles.push(item)

      item = Item.new(5, 'packages of noodles', true)
      @articles.push(item)

      item = Item.new(2, 'packages of chocolate chip cookies', true)
      @articles.push(item)

      item = Item.new(1, 'can vanilla ice cream', true)
      @articles.push(item)

      item = Item.new(6, 'eggs', true)
      @articles.push(item)
    end