Fix drawing of empty boxes

[lyx.git] / src / mathed / InsetMathDelim.h

diff --git a/src/mathed/InsetMathDelim.h b/src/mathed/InsetMathDelim.h
index 3a09ede2f32bd509356bb2a518a02a07177d6a26..5a7e8164049cfb7948559b8dd12587adc149d57a 100644 (file)
--- a/src/mathed/InsetMathDelim.h
+++ b/src/mathed/InsetMathDelim.h
@@ -30,6 +30,8 @@ public:
        InsetMathDelim * asDelimInset() { return this; }
        ///
        InsetMathDelim const * asDelimInset() const { return this; }
+       ///
+       MathClass mathClass() const { return MC_INNER; }
        /// is it (...)?
        bool isParenthesis() const;
        /// is it [...]?