lyx_mirror/src/mathed/math_undersetinset.C
Angus Leeming 0705dae8a3 Finish the task of removing all cruft from the header files.
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7703 a592a061-630c-0410-9148-cb99ea01b6c8
2003-09-07 21:25:37 +00:00

88 lines
1.8 KiB
C

/**
* \file math_undersetinset.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "math_undersetinset.h"
#include "math_data.h"
#include "math_mathmlstream.h"
using std::max;
using std::auto_ptr;
auto_ptr<InsetBase> MathUndersetInset::clone() const
{
return auto_ptr<InsetBase>(new MathUndersetInset(*this));
}
void MathUndersetInset::metrics(MetricsInfo & mi, Dimension & dim) const
{
cell(1).metrics(mi);
FracChanger dummy(mi.base);
cell(0).metrics(mi);
dim_.wid = max(cell(0).width(), cell(1).width()) + 4;
dim_.asc = cell(1).ascent();
dim_.des = cell(1).descent() + cell(0).height() + 4;
dim = dim_;
}
void MathUndersetInset::draw(PainterInfo & pi, int x, int y) const
{
int m = x + pi.width / 2;
int yo = y + cell(1).descent() + cell(0).ascent() + 1;
cell(1).draw(pi, m - cell(1).width() / 2, y);
FracChanger dummy(pi.base);
cell(0).draw(pi, m - cell(0).width() / 2, yo);
}
bool MathUndersetInset::idxFirst(idx_type & i, pos_type & pos) const
{
i = 1;
pos = 0;
return true;
}
bool MathUndersetInset::idxLast(idx_type & i, pos_type & pos) const
{
i = 1;
pos = cell(i).size();
return true;
}
bool MathUndersetInset::idxUpDown(idx_type & idx, pos_type & pos, bool up,
int targetx) const
{
idx_type target = up; // up ? 1 : 0, since upper cell has idx 1
if (idx == target)
return false;
idx = target;
pos = cell(idx).x2pos(targetx);
return true;
}
void MathUndersetInset::write(WriteStream & os) const
{
os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';
}
void MathUndersetInset::normalize(NormalStream & os) const
{
os << "[underset " << cell(0) << ' ' << cell(1) << ']';
}