2 * \file InsetMathUnderset.cpp
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 "InsetMathUnderset.h"
15 #include "MathStream.h"
18 #include "LaTeXFeatures.h"
23 Inset * InsetMathUnderset::clone() const
25 return new InsetMathUnderset(*this);
29 void InsetMathUnderset::metrics(MetricsInfo & mi, Dimension & dim) const
32 FracChanger dummy(mi.base);
34 dim.wid = std::max(cell(0).width(), cell(1).width()) + 4;
35 dim.asc = cell(1).ascent();
36 dim.des = cell(1).descent() + cell(0).height() + 4;
38 // Cache the inset dimension.
43 void InsetMathUnderset::draw(PainterInfo & pi, int x, int y) const
45 Dimension const dim = dimension(*pi.base.bv);
46 int m = x + dim.wid / 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 InsetMathUnderset::idxFirst(Cursor & cur) const
63 bool InsetMathUnderset::idxLast(Cursor & cur) const
66 cur.pos() = cur.lastpos();
71 bool InsetMathUnderset::idxUpDown(Cursor & 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 InsetMathUnderset::write(WriteStream & os) const
84 os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';
88 void InsetMathUnderset::normalize(NormalStream & os) const
90 os << "[underset " << cell(0) << ' ' << cell(1) << ']';
94 void InsetMathUnderset::validate(LaTeXFeatures & features) const
96 features.require("amsmath");
97 InsetMathNest::validate(features);