examples/options: support language changing

examples/menus/options/init.lua

@@ -42,6 +42,8 @@ function OptionsMenu:new()
   Widgets.Switch(self, "video", "borders")
   Widgets.Switch(self, "video", "vsync")
 
+  self:setLanguageMenu()
+
   Widgets.Exit(self, "main")
   self.menusystem:switchMenu("main")
 end
@@ -66,6 +68,12 @@ function OptionsMenu:addScene(submenu, scene, fullname)
   Widgets.Dummy(self, submenu, fullname)
 end
 
+function OptionsMenu:setLanguageMenu()
+  for i,v in ipairs(core.lang.data.available) do
+    Widgets.Lang(self, "langs", v)
+  end
+end
+
 function OptionsMenu:draw()
   love.graphics.setColor(.3,  .1, .4, 1)
   love.graphics.rectangle("fill", 0, 0, 424, 240)

examples/menus/options/widgets.lua

@@ -31,6 +31,7 @@ widgets.Dummy   = Widget.Text:extend()
 widgets.Exit    = Widget.Text:extend()
 widgets.Switch  = DoubleTextWidget:extend()
 widgets.Resolution = DoubleTextWidget:extend()
+widgets.Lang    = Widget.Text:extend()
 
 -- BASIC WIDGETS
 -- Simple and reusables widgets
@@ -178,5 +179,21 @@ function widgets.Resolution:action()
   core.options:write()
 end
 
+-- LANGS WIDGET
+-- Allow you to change the lang of the game
+
+function widgets.Lang:new(scene, menu, lang)
+  self.scene = scene
+  local widgetmenu  = self.scene.menusystem.menus[menu]
+  local font        = self.scene.assets.fonts["medium"]
+  local label       = core.lang:getLangName(lang)
+  self.lang         = lang
+  widgets.Lang.super.new(self, widgetmenu, font, label)
+end
+
+function widgets.Lang:action()
+  core.options:setLanguage(self.lang)
+  --self.scene.menusystem:invalidateAllWidgets()
+end
 
 return widgets