function test_show_log_browser_side_splits_window_width()
  -- initialize screen dimensions and indicate that it is maximized
  App.screen.init{width=300, height=300}

  -- set up desired window dimensions and make window resizable
  _, _, App.screen.flags = App.screen.size()
  App.screen.flags.resizable = true
  App.screen.width, App.screen.height = settings.width, settings.height
  App.screen.resize(App.screen.width, App.screen.height, App.screen.flags)
  local os = love.system.getOS()
  if os == 'Linux' then
    -- love.window.setPosition doesn't quite seem to do what is asked of it on Linux.
    App.screen.move(settings.x, settings.y-37, settings.displayindex)
  else
    App.screen.move(settings.x, settings.y, settings.displayindex)
  end
  -- Initialize window width/height and make window resizable.
  --
  -- I get tempted to have opinions about window dimensions here, but they're
  -- non-portable:
  --  - maximizing doesn't work on mobile and messes things up
  --  - maximizing keeps the title bar on screen in Linux, but off screen on
  --    Windows. And there's no way to get the height of the title bar.
  -- It seems more robust to just follow LÖVE's default window size until
  -- someone overrides it.
  App.screen.width, App.screen.height, App.screen.flags = App.screen.size()
  if Settings == nil then Settings = {} end
  if Settings.source == nil then Settings.source = {} end
  Settings.source.x, Settings.source.y, Settings.source.displayindex = App.screen.position()
      Editor_state.width = Editor_state.right-Editor_state.left
      Text.redraw_all(Editor_state)
      Editor_state.right = App.screen.width - Margin_right
      Editor_state.width = Editor_state.right-Editor_state.left
      Text.redraw_all(Editor_state)
    end
      Log_browser_state.left = App.screen.width/2 + Margin_left
      Log_browser_state.right = App.screen.width - Margin_right
  File_navigation.cursors[Editor_state.filename] = {cursor1=Editor_state.cursor1, screen_top1=Editor_state.screen_top1}
  App.screen.flags.resizable = true
end
function source.initialize_default_settings()
  local font_height = 20
  love.graphics.setFont(love.graphics.newFont(font_height))
  source.set_window_position_from_settings(settings)
  Show_log_browser_side = settings.show_log_browser_side
  local right = App.screen.width - Margin_right
  if Show_log_browser_side then
    right = App.screen.width/2 - Margin_right
  end
  Editor_state = edit.initialize_state(Margin_top, Margin_left, right, settings.font_height, math.floor(settings.font_height*1.3))
  Editor_state.filename = settings.filename

  -- set up desired window dimensions and make window resizable
  _, _, App.screen.flags = App.screen.size()
  run.set_window_position_from_settings(Settings)
end
function run.set_window_position_from_settings(settings)
  local os = love.system.getOS()
  if os == 'Linux' then
    -- love.window.setPosition doesn't quite seem to do what is asked of it on Linux.
    App.screen.move(settings.x, settings.y-37, settings.displayindex)
  else
    App.screen.move(settings.x, settings.y, settings.displayindex)
  end
  -- Initialize window width/height and make window resizable.
  --
  -- I get tempted to have opinions about window dimensions here, but they're
  -- non-portable:
  --  - maximizing doesn't work on mobile and messes things up
  --  - maximizing keeps the title bar on screen in Linux, but off screen on
  --    Windows. And there's no way to get the height of the title bar.
  -- It seems more robust to just follow LÖVE's default window size until
  -- someone overrides it.
  if Settings == nil then Settings = {} end
  Settings.x, Settings.y, Settings.displayindex = App.screen.position()
  return {
  App.screen.width, App.screen.height, App.screen.flags = App.screen.size()
end
function run.initialize_default_settings()
  local font_height = 20
  love.graphics.setFont(love.graphics.newFont(font_height))
  Editor_state = edit.initialize_state(Margin_top, Margin_left, App.screen.width-Margin_right, Settings.font_height, math.floor(Settings.font_height*1.3))
  Editor_state.filename = Settings.filename
  Editor_state.screen_top1 = Settings.screen_top
  Editor_state.cursor1 = Settings.cursor
  App.screen.flags.resizable = true