2 * \file InsetMathUnderset.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 "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 void 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;
47 void InsetMathUnderset::draw(PainterInfo & pi, int x, int y) const
49 int m = x + width() / 2;
50 int yo = y + cell(1).descent() + cell(0).ascent() + 1;
51 cell(1).draw(pi, m - cell(1).width() / 2, y);
52 FracChanger dummy(pi.base);
53 cell(0).draw(pi, m - cell(0).width() / 2, yo);
54 drawMarkers(pi, x, y);
58 bool InsetMathUnderset::idxFirst(LCursor & cur) const
66 bool InsetMathUnderset::idxLast(LCursor & cur) const
69 cur.pos() = cur.lastpos();
74 bool InsetMathUnderset::idxUpDown(LCursor & cur, bool up) const
76 idx_type target = up; // up ? 1 : 0, since upper cell has idx 1
77 if (cur.idx() == target)
80 cur.pos() = cur.cell().x2pos(cur.x_target());
85 void InsetMathUnderset::write(WriteStream & os) const
87 os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';
91 void InsetMathUnderset::normalize(NormalStream & os) const
93 os << "[underset " << cell(0) << ' ' << cell(1) << ']';
97 void InsetMathUnderset::validate(LaTeXFeatures & features) const
99 features.require("amsmath");
100 InsetMathNest::validate(features);