-------------------------------- -- @module Helper -- @parent_module ccui -------------------------------- -- brief Get a UTF8 substring from a std::string with a given start position and length<br> -- Sample: std::string str = "中国中国中国"; substr = getSubStringOfUTF8String(str,0,2) will = "中国"<br> -- param start The start position of the substring.<br> -- param length The length of the substring in UTF8 count<br> -- return a UTF8 substring -- @function [parent=#Helper] getSubStringOfUTF8String -- @param self -- @param #string str -- @param #unsigned long start -- @param #unsigned long length -- @return string#string ret (return value: string) -------------------------------- -- -- @function [parent=#Helper] changeLayoutSystemActiveState -- @param self -- @param #bool bActive -------------------------------- -- -- @function [parent=#Helper] seekActionWidgetByActionTag -- @param self -- @param #ccui.Widget root -- @param #int tag -- @return Widget#Widget ret (return value: ccui.Widget) -------------------------------- -- Finds a widget whose name equals to param name from root widget.<br> -- param root widget which will be seeked.<br> -- name name value.<br> -- return finded result. -- @function [parent=#Helper] seekWidgetByName -- @param self -- @param #ccui.Widget root -- @param #string name -- @return Widget#Widget ret (return value: ccui.Widget) -------------------------------- -- Finds a widget whose tag equals to param tag from root widget.<br> -- param root widget which will be seeked.<br> -- tag tag value.<br> -- return finded result. -- @function [parent=#Helper] seekWidgetByTag -- @param self -- @param #ccui.Widget root -- @param #int tag -- @return Widget#Widget ret (return value: ccui.Widget) -------------------------------- -- -- @function [parent=#Helper] doLayout -- @param self -- @param #cc.Node rootNode return nil