X-Git-Url: https://git.lyx.org/gitweb/?a=blobdiff_plain;f=src%2Fmathed%2FInsetMathRoot.cpp;h=d48eeece0e3beb40c1b7442aa639109376447a26;hb=58ab972f714309aa87e7d956ceda00e18337875f;hp=43974b131d5d79a427bcf4badc60591fa9be0607;hpb=ed858d73e57ce7aa89e38c1bc4d799362edb0227;p=lyx.git

diff --git a/src/mathed/InsetMathRoot.cpp b/src/mathed/InsetMathRoot.cpp
index 43974b131d..d48eeece0e 100644
--- a/src/mathed/InsetMathRoot.cpp
+++ b/src/mathed/InsetMathRoot.cpp
@@ -34,33 +34,35 @@ Inset * InsetMathRoot::clone() const
 }
 
 
-bool InsetMathRoot::metrics(MetricsInfo & mi, Dimension & dim) const
+void InsetMathRoot::metrics(MetricsInfo & mi, Dimension & dim) const
 {
 	using std::max;
 	InsetMathNest::metrics(mi);
-	dim.asc = max(cell(0).ascent()  + 5, cell(1).ascent())  + 2;
-	dim.des = max(cell(0).descent() - 5, cell(1).descent()) + 2;
-	dim.wid = cell(0).width() + cell(1).width() + 10;
+	Dimension const & dim0 = cell(0).dimension(*mi.base.bv);
+	Dimension const & dim1 = cell(1).dimension(*mi.base.bv);
+	dim.asc = max(dim0.ascent()  + 5, dim1.ascent())  + 2;
+	dim.des = max(dim0.descent() - 5, dim1.descent()) + 2;
+	dim.wid = dim0.width() + dim1.width() + 10;
 	metricsMarkers(dim);
-	if (dim_ == dim)
-		return false;
-	dim_ = dim;
-	return true;
+	// Cache the inset dimension. 
+	setDimCache(mi, dim);
 }
 
 
 void InsetMathRoot::draw(PainterInfo & pi, int x, int y) const
 {
-	int const w = cell(0).width();
+	Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
+	int const w = dim0.width();
 	// the "exponent"
-	cell(0).draw(pi, x, y - 5 - cell(0).descent());
+	cell(0).draw(pi, x, y - 5 - dim0.descent());
 	// the "base"
 	cell(1).draw(pi, x + w + 8, y);
-	int const a = dim_.ascent();
-	int const d = dim_.descent();
+	Dimension const dim = dimension(*pi.base.bv);
+	int const a = dim.ascent();
+	int const d = dim.descent();
 	int xp[4];
 	int yp[4];
-	pi.pain.line(x + dim_.width(), y - a + 1,
+	pi.pain.line(x + dim.width(), y - a + 1,
 							 x + w + 4, y - a + 1, Color::math);
 	xp[0] = x + w + 4;         yp[0] = y - a + 1;
 	xp[1] = x + w;             yp[1] = y + d;