+ MathDelimInset const * asDelimInset() const { return this; }
+ /// is it (...)?
+ bool isParanthesis() const;
+ /// is it [...]?
+ bool isBrackets() const;
+ /// is it |...|?
+ bool isAbs() const;
+ ///
+ void metrics(MetricsInfo & mi, Dimension & dim) const;
+ ///
+ void draw(PainterInfo &, int x, int y) const;
+