+ inline int getBevelWidth(void) const { return _bevel_width; }
+ void setBevelWidth(int bevel_width)
+ { assert(bevel_width > 0); _bevel_width = bevel_width; }
+
+ inline Direction getDirection(void) const { return _direction; }
+ void setDirection(Direction dir) { _direction = dir; }
+
+ inline Style *getStyle(void) const { return _style; }
+ void setStyle(Style *style) { _style = style; }
+