Reintroduce the spacing around delimiters

This spacing was wrongly removed at 361bd53b as part of the
introduction of proper spacing between elements, but it only introduces
some breathing space around the delimiters. This will not be necessary
anymore when/if we use proper delimiters from the cmex10 font.

(cherry picked from commit 4cb5cc0c7de7cb5dbaaf14328e5a82e1cfe5a6ca)

diff --git a/src/mathed/InsetMathDelim.cpp b/src/mathed/InsetMathDelim.cpp
index d66495933d51464a539ec9312572f7c22c581a20..809e8a0c13ef53160ee0ac28cbd0c51466af680b 100644 (file)
--- a/src/mathed/InsetMathDelim.cpp
+++ b/src/mathed/InsetMathDelim.cpp
@@ -103,7 +103,7 @@ void InsetMathDelim::metrics(MetricsInfo & mi, Dimension & dim) const
                dw_ = 8;
        if (dw_ < 4)
                dw_ = 4;
-       dim.wid = dim0.width() + 2 * dw_;
+       dim.wid = dim0.width() + 2 * dw_ + 2 * mathed_thinmuskip(mi.base.font);
        dim.asc = max(a0, d0) + h0;
        dim.des = max(a0, d0) - h0;
 }
@@ -114,9 +114,10 @@ void InsetMathDelim::draw(PainterInfo & pi, int x, int y) const
        Changer dummy = pi.base.changeEnsureMath();
        Dimension const dim = dimension(*pi.base.bv);
        int const b = y - dim.asc;
-       cell(0).draw(pi, x + dw_, y);
-       mathed_draw_deco(pi, x, b, dw_, dim.height(), left_);
-       mathed_draw_deco(pi, x + dim.width() - dw_,
+       int const skip = mathed_thinmuskip(pi.base.font);
+       cell(0).draw(pi, x + dw_ + skip, y);
+       mathed_draw_deco(pi, x + skip / 2, b, dw_, dim.height(), left_);
+       mathed_draw_deco(pi, x + dim.width() - dw_ - skip / 2,
                b, dw_, dim.height(), right_);
 }