new lua function for creating widgets: createWidget

modules/core_scripts/ui.lua

@@ -1,17 +1,21 @@
-UI = { }
-UI.root = getRootWidget()
+-- globals
+rootWidget = g_ui.getRootWidget()
 
 -- public functions
-function UI.display(arg1, options)
+function importStyle(otui)
+  g_ui.importStyle(resolveFileFullPath(otui, 2))
+end
+
+function displayUI(arg1, options)
   local widget
   local parent
   if options then parent = options.parent end
-  parent = parent or UI.root
+  parent = parent or rootWidget
 
   -- display otui files
   if type(arg1) == 'string' then
     local otuiFilePath = resolveFileFullPath(arg1, 2)
-    widget = loadUI(otuiFilePath, parent)
+    widget = g_ui.loadUI(otuiFilePath, parent)
   -- display already loaded widgets
   else
     widget = arg1
@@ -40,3 +44,14 @@ function UI.display(arg1, options)
   end
   return widget
 end
+
+function createWidget(style, parent)
+  local className = g_ui.getStyleClass(style)
+  local class = _G[className]
+  local widget = class.create()
+  if parent then
+    parent:addChild(widget)
+  end
+  widget:setStyle(style)
+  return widget
+end