2 * \file math_undersetinset.C
3 * This file is part of LyX, the document processor.
4 * Licence details can be found in the file COPYING.
8 * Full author contact details are available in file CREDITS.
13 #include "math_undersetinset.h"
14 #include "math_data.h"
15 #include "math_mathmlstream.h"
18 #include "LaTeXFeatures.h"
25 auto_ptr<InsetBase> MathUndersetInset::doClone() const
27 return auto_ptr<InsetBase>(new MathUndersetInset(*this));
31 void MathUndersetInset::metrics(MetricsInfo & mi, Dimension & dim) const
34 FracChanger dummy(mi.base);
36 dim.wid = max(cell(0).width(), cell(1).width()) + 4;
37 dim.asc = cell(1).ascent();
38 dim.des = cell(1).descent() + cell(0).height() + 4;
44 void MathUndersetInset::draw(PainterInfo & pi, int x, int y) const
46 int m = x + width() / 2;
47 int yo = y + cell(1).descent() + cell(0).ascent() + 1;
48 cell(1).draw(pi, m - cell(1).width() / 2, y);
49 FracChanger dummy(pi.base);
50 cell(0).draw(pi, m - cell(0).width() / 2, yo);
51 drawMarkers(pi, x, y);
55 bool MathUndersetInset::idxFirst(LCursor & cur) const
63 bool MathUndersetInset::idxLast(LCursor & cur) const
66 cur.pos() = cur.lastpos();
71 bool MathUndersetInset::idxUpDown(LCursor & cur, bool up) const
73 idx_type target = up; // up ? 1 : 0, since upper cell has idx 1
74 if (cur.idx() == target)
77 cur.pos() = cur.cell().x2pos(cur.x_target());
82 void MathUndersetInset::write(WriteStream & os) const
84 os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';
88 void MathUndersetInset::normalize(NormalStream & os) const
90 os << "[underset " << cell(0) << ' ' << cell(1) << ']';
94 void MathUndersetInset::validate(LaTeXFeatures & features) const
96 features.require("amsmath");
97 MathNestInset::validate(features);