+auto_ptr<InsetBase> MathFracInset::clone() const
+{
+ return auto_ptr<InsetBase>(new MathFracInset(*this));
+}
+
+
+MathFracInset * MathFracInset::asFracInset()
+{
+ return atop_ ? 0 : this;
+}
+
+
+MathFracInset const * MathFracInset::asFracInset() const
+{
+ return atop_ ? 0 : this;
+}
+
+
+void MathFracInset::metrics(MetricsInfo & mi, Dimension & dim) const
+{
+ FracChanger dummy(mi.base);
+ cell(0).metrics(mi);
+ cell(1).metrics(mi);
+ dim.wid = max(cell(0).width(), cell(1).width()) + 2;
+ dim.asc = cell(0).height() + 2 + 5;
+ dim.des = cell(1).height() + 2 - 5;
+ metricsMarkers(dim);
+ dim_ = dim;
+}
+
+
+void MathFracInset::draw(PainterInfo & pi, int x, int y) const
+{
+ setPosCache(pi, x, y);
+ int m = x + dim_.wid / 2;
+ FracChanger dummy(pi.base);
+ cell(0).draw(pi, m - cell(0).width() / 2, y - cell(0).descent() - 2 - 5);
+ cell(1).draw(pi, m - cell(1).width() / 2, y + cell(1).ascent() + 2 - 5);
+ if (!atop_)
+ pi.pain.line(x + 1, y - 5, x + dim_.wid - 2, y - 5, LColor::math);
+ drawMarkers(pi, x, y);
+}
+
+
+void MathFracInset::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
+{
+ cell(0).metricsT(mi, dim);
+ cell(1).metricsT(mi, dim);
+ dim.wid = max(cell(0).width(), cell(1).width());
+ dim.asc = cell(0).height() + 1;
+ dim.des = cell(1).height();
+ //dim = dim_;
+}
+
+
+void MathFracInset::drawT(TextPainter & pain, int x, int y) const
+{
+ int m = x + dim_.width() / 2;
+ cell(0).drawT(pain, m - cell(0).width() / 2, y - cell(0).descent() - 1);
+ cell(1).drawT(pain, m - cell(1).width() / 2, y + cell(1).ascent());
+ if (!atop_)
+ pain.horizontalLine(x, y, dim_.width());
+}
+
+
+void MathFracInset::write(WriteStream & os) const
+{
+ if (atop_)
+ os << '{' << cell(0) << "\\atop " << cell(1) << '}';
+ else // it's \\frac
+ MathNestInset::write(os);
+}
+
+
+string MathFracInset::name() const
+{
+ return atop_ ? "atop" : "frac";