Account for old versions of Pygments

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

diff --git a/src/mathed/InsetMathScript.cpp b/src/mathed/InsetMathScript.cpp
index b5e70fd6313a8eb2600135f16200c01f22ccb2c6..fc72b6b078e1052002cd045701c607767e57ac40 100644 (file)
--- a/src/mathed/InsetMathScript.cpp
+++ b/src/mathed/InsetMathScript.cpp
@@ -226,7 +226,8 @@ int InsetMathScript::dx0(BufferView const & bv) const
 {
        LASSERT(hasDown(), return 0);
        Dimension const dim = dimension(bv);
-       return hasLimits() ? (dim.wid - down().dimension(bv).width()) / 2 : nwid(bv);
+       return hasLimits() ? (dim.wid - down().dimension(bv).width()) / 2
+               : nwid(bv) + min(nker(&bv), 0);
 }
 
 
@@ -234,7 +235,8 @@ int InsetMathScript::dx1(BufferView const & bv) const
 {
        LASSERT(hasUp(), return 0);
        Dimension const dim = dimension(bv);
-       return hasLimits() ? (dim.wid - up().dimension(bv).width()) / 2 : nwid(bv) + nker(&bv);
+       return hasLimits() ? (dim.wid - up().dimension(bv).width()) / 2
+               : nwid(bv) + max(nker(&bv), 0);
 }
 
 
@@ -265,10 +267,8 @@ int InsetMathScript::ndes(BufferView const & bv) const
 
 int InsetMathScript::nker(BufferView const * bv) const
 {
-       if (!nuc().empty()) {
-               int kerning = nuc().kerning(bv);
-               return kerning > 0 ? kerning : 0;
-       }
+       if (!nuc().empty())
+               return nuc().kerning(bv);
        return 0;
 }
 
@@ -320,9 +320,9 @@ void InsetMathScript::metrics(MetricsInfo & mi, Dimension & dim) const
                        dim.wid = max(dim.wid, dimdown.width());
        } else {
                if (hasUp())
-                       dim.wid = max(dim.wid, nker(mi.base.bv) + dimup.width());
+                       dim.wid = max(dim.wid, max(nker(mi.base.bv), 0) + dimup.width());
                if (hasDown())
-                       dim.wid = max(dim.wid, dimdown.width());
+                       dim.wid = max(dim.wid, min(nker(mi.base.bv), 0) + dimdown.width());
                dim.wid += nwid(bv);
        }
        int na = nasc(bv);