class Prawn::Table::Cell::Text

def with_font
  @pdf.save_font do
    options = {}
    options[:style] = @text_options[:style] if @text_options[:style]
    options[:style] ||= @pdf.font.options[:style] if @pdf.font.options[:style]
    @pdf.font(defined?(@font) && @font || @pdf.font.family, options)
    yield
  end
end