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"
28 auto_ptr<InsetBase> InsetMathUnderset::doClone() const
30 return auto_ptr<InsetBase>(new InsetMathUnderset(*this));
34 bool InsetMathUnderset::metrics(MetricsInfo & mi, Dimension & dim) const
37 FracChanger dummy(mi.base);
39 dim.wid = max(cell(0).width(), cell(1).width()) + 4;
40 dim.asc = cell(1).ascent();
41 dim.des = cell(1).descent() + cell(0).height() + 4;
50 void InsetMathUnderset::draw(PainterInfo & pi, int x, int y) const
52 int m = x + width() / 2;
53 int yo = y + cell(1).descent() + cell(0).ascent() + 1;
54 cell(1).draw(pi, m - cell(1).width() / 2, y);
55 FracChanger dummy(pi.base);
56 cell(0).draw(pi, m - cell(0).width() / 2, yo);
57 drawMarkers(pi, x, y);
61 bool InsetMathUnderset::idxFirst(LCursor & cur) const
69 bool InsetMathUnderset::idxLast(LCursor & cur) const
72 cur.pos() = cur.lastpos();
77 bool InsetMathUnderset::idxUpDown(LCursor & cur, bool up) const
79 idx_type target = up; // up ? 1 : 0, since upper cell has idx 1
80 if (cur.idx() == target)
83 cur.pos() = cur.cell().x2pos(cur.x_target());
88 void InsetMathUnderset::write(WriteStream & os) const
90 os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';
94 void InsetMathUnderset::normalize(NormalStream & os) const
96 os << "[underset " << cell(0) << ' ' << cell(1) << ']';
100 void InsetMathUnderset::validate(LaTeXFeatures & features) const
102 features.require("amsmath");
103 InsetMathNest::validate(features);