+ public:
+// void SetToolActive(Action * action);
+ void SetGridSize(uint32_t);
+ void UpdateGridBackground(void);
+ Point SnapPointToGrid(Point);
+ void RenderObjects(Painter *, Container *);
+
+ public slots:
+ void AddNewObjectToDocument(Object *);
+ void HandleActionUpdate(void);
+ void SetCurrentLayer(int);
+