Factorio / calculator-ui

  -- control.lua
  
  require("calculator")
  
  -- ----------------------------------------------------------------
  function boolstr(bool)
  	if bool then 
  		return "T"
  	else 
  		return "F"
  	end
  end
  
  -- ----------------------------------------------------------------
  function debug_print(str)

  	if storage.marc_debug then

  		game.print(str)
  	end
  end
  
  function __FUNC__() return debug.getinfo(2, 'n').name end
  
  function debug_log(f, str)

  	if storage.marc_debug then

  		game.print(f .. ": " .. str)
  	end
  end
  
  -- ----------------------------------------------------------------

  local function shortcut(event)
  	if event.prototype_name == "calcui_4func" then
      	local player = game.players[event.player_index]
      	toggle_calculator(player)
  	end
  end
  
  -- ----------------------------------------------------------------
  -- user has clicked somewhere.  If clicked on any gui item name that starts with "calcui_..."
  -- hide the gui
  local function on_gui_click(event)
  	local event_name = event.element.name
  	debug_print("event_name " .. event_name)

  	local player = game.players[event.player_index]

  
  	local calcui_prefix = "calcui"

  	local possible_marcalc_prefix = string.sub( event_name, 1, string.len(calcui_prefix))
  	if possible_marcalc_prefix == calcui_prefix then
  		handle_calcui_click(event, player)
  		return
  	end

  end
  
  -- ----------------------------------------------------------------
  -- user has confirmed the textfield / Called when a LuaGuiElement is confirmed, for example by pressing Enter in a textfield. 
  local function on_gui_confirmed(event)
  	player = game.players[event.player_index];
  	if event.element.name == "calcui_display" then
  		process_equal_key(player)

  	end
  end
  
  -- ----------------------------------------------------------------
  local function on_calcui_command(event)
  	if event.parameter == "debug" then

  		storage.calcui_debug = true

  		debug_print("calcui debugging is on")
  	elseif event.parameter == "nodebug" then
  		debug_print("calcui debugging is off")

  		storage.calcui_debug = false

  	elseif event.parameter == nil then
  		game.players[event.player_index].print("please add a parameter")
  	else
  		game.players[event.player_index].print("unknown calcui parameter: " .. event.parameter)
  	end
  end
  
  -- ----------------------------------------------------------------

  local function on_hotkey_main(event)
  	local player = game.players[event.player_index]

  	toggle_calculator(player, true)

  end
  
  -- ----------------------------------------------------------------
  script.on_event( "calcui_hotkey", on_hotkey_main )

  script.on_event( defines.events.on_lua_shortcut, shortcut )
  script.on_event( defines.events.on_gui_click, on_gui_click)
  script.on_event( defines.events.on_gui_confirmed, on_gui_confirmed)
  script.on_event( defines.events.on_gui_text_changed, calcui_on_gui_text_changed )
  script.on_event( defines.events.on_gui_location_changed, calcui_on_gui_location_changed )

  commands.add_command( "calcui", "Calculator UI [ debug | nodebug ] ", on_calcui_command )