Only set buffer if it is not null.

[lyx.git] / src / mathed / InsetMathSideset.cpp

diff --git a/src/mathed/InsetMathSideset.cpp b/src/mathed/InsetMathSideset.cpp
index 642e07c16a7c0d664143937ab51ad9f3693d2a32..7dccfc1727dd4dd2f9a1cba9bed2222f6d67a92f 100644 (file)
--- a/src/mathed/InsetMathSideset.cpp
+++ b/src/mathed/InsetMathSideset.cpp
@@ -194,7 +194,7 @@ void InsetMathSideset::metrics(MetricsInfo & mi, Dimension & dim) const
                tr().metrics(mi, dimtr);
        }
 
-       BufferView & bv = *mi.base.bv;
+       BufferView const & bv = *mi.base.bv;
        // FIXME: data copying... not very efficient.
 
        dim.wid = nwid(bv) + nker(mi.base.bv) + 2 * dx;
@@ -212,7 +212,7 @@ void InsetMathSideset::metrics(MetricsInfo & mi, Dimension & dim) const
 void InsetMathSideset::draw(PainterInfo & pi, int x, int y) const
 {
        Changer dummy2 = pi.base.changeEnsureMath();
-       BufferView & bv = *pi.base.bv;
+       BufferView const & bv = *pi.base.bv;
        nuc().draw(pi, x + dxn(bv), y);
        if (!scriptl_)
                bl().draw(pi, x          , y);