def variable_text_field(x, y, params = {})
      x = 0 unless numeric?(x)
      y = 0 unless numeric?(y)
      options = { height: 0.1, width: 0.1 }.merge!(params)

      # update the variable field count
      self.variable_fields_count += 1

      label_data.push('^FO' + Integer(x * printer_dpi).to_s + ',' +
                      Integer(y * printer_dpi).to_s)

      if params[:orientation] == :landscape
        label_data.push('^A0N,')
      else
        label_data.push('^A0B,')
      end

      label_data.push(Integer(options[:height] * printer_dpi).to_s + ',' +
                      Integer(options[:width] * printer_dpi).to_s +
                       '^FN' + variable_fields_count.to_s + '^FS')

      # return unless label_height > 0 && label_width > 0
      # pdf.text_box '{Variable Field ' + variable_fields_count.to_s + '}',
      #              at: [Integer(x * pdf_dpi), Integer(label_width * pdf_dpi) -
      #              Integer(y * pdf_dpi) -
      #              Integer(options[:height] / 10) * pdf_dpi],
      #              size: Integer(options[:height] * pdf_dpi) if label_height &&
      #              label_width
    end
def variable_text_field(x, y, params = {})
      x = 0 unless numeric?(x)
      y = 0 unless numeric?(y)
      options = { height: 0.1, width: 0.1 }.merge!(params)

      # update the variable field count
      self.variable_fields_count += 1

      label_data.push('^FO' + Integer(x * printer_dpi).to_s + ',' +
                      Integer(y * printer_dpi).to_s)

      if params[:orientation] == :landscape
        label_data.push('^A0N,')
      else
        label_data.push('^A0B,')
      end

      label_data.push(Integer(options[:height] * printer_dpi).to_s + ',' +
                      Integer(options[:width] * printer_dpi).to_s +
                       '^FN' + variable_fields_count.to_s + '^FS')

      # return unless label_height > 0 && label_width > 0
      # pdf.text_box '{Variable Field ' + variable_fields_count.to_s + '}',
      #              at: [Integer(x * pdf_dpi), Integer(label_width * pdf_dpi) -
      #              Integer(y * pdf_dpi) -
      #              Integer(options[:height] / 10) * pdf_dpi],
      #              size: Integer(options[:height] * pdf_dpi) if label_height &&
      #              label_width
    end
Called when the new method is invoked
 Sets a variable field that can be recalled