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"
22 auto_ptr<InsetBase> MathUndersetInset::clone() const
24 return auto_ptr<InsetBase>(new MathUndersetInset(*this));
28 void MathUndersetInset::metrics(MetricsInfo & mi, Dimension & dim) const
31 FracChanger dummy(mi.base);
33 dim_.wid = max(cell(0).width(), cell(1).width()) + 4;
34 dim_.asc = cell(1).ascent();
35 dim_.des = cell(1).descent() + cell(0).height() + 4;
40 void MathUndersetInset::draw(PainterInfo & pi, int x, int y) const
42 int m = x + pi.width / 2;
43 int yo = y + cell(1).descent() + cell(0).ascent() + 1;
44 cell(1).draw(pi, m - cell(1).width() / 2, y);
45 FracChanger dummy(pi.base);
46 cell(0).draw(pi, m - cell(0).width() / 2, yo);
50 bool MathUndersetInset::idxFirst(BufferView & bv) const
52 CursorSlice & cur = cursorTip(bv);
59 bool MathUndersetInset::idxLast(BufferView & bv) const
61 CursorSlice & cur = cursorTip(bv);
63 cur.pos() = cur.lastpos();
68 bool MathUndersetInset::idxUpDown(BufferView & bv, bool up, int targetx) const
70 CursorSlice & cur = cursorTip(bv);
71 idx_type target = up; // up ? 1 : 0, since upper cell has idx 1
72 if (cur.idx() == target)
75 cur.pos() = cur.cell().x2pos(targetx);
80 void MathUndersetInset::write(WriteStream & os) const
82 os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';
86 void MathUndersetInset::normalize(NormalStream & os) const
88 os << "[underset " << cell(0) << ' ' << cell(1) << ']';