if File_navigation.num_lines == nil then
    File_navigation.num_lines = source.num_lines_for_file_navigator()
  end
  App.color(Menu_background_color)
  love.graphics.rectangle('fill', 0,Menu_status_bar_height, App.screen.width, File_navigation.num_lines * Editor_state.line_height)
  local x,y = 5, Menu_status_bar_height

    add_file_to_menu(filename, i == File_navigation.index)

    x,y = add_file_to_menu(x,y, filename, i == File_navigation.index)

function add_file_to_menu(s, cursor_highlight)

function source.num_lines_for_file_navigator()
  local result = 1
  local x = 5
  for i,filename in ipairs(File_navigation.candidates) do
  local width = App.width(to_text(filename))
  if x + width > App.screen.width - 5 then
    result = result+1
    x = 5 + width
  else
    x = x + width + 30
  end
  end
  return result
end
function add_file_to_menu(x,y, s, cursor_highlight)

  if x + width > App.screen.width - 5 then
    y = y + Editor_state.line_height
    x = 5
  end

    love.graphics.rectangle('fill', Menu_cursor-5,5-2, width+5*2,Editor_state.line_height+2*2)

    love.graphics.rectangle('fill', x-5,y-2, width+5*2,Editor_state.line_height+2*2)

  App.screen.draw(s_text, Menu_cursor,5)
  Menu_cursor = Menu_cursor + width + 30

  App.screen.draw(s_text, x,y)
  x = x + width + 30
  return x,y