lyx_mirror/src/mathed/math_fracinset.C
André Pönitz 5507c1ad69 use stream-like syntax for LaTeX output
(instead of inset.write(stream) functions)

prepare fix for proper font sizes in chapter heading etc...


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2899 a592a061-630c-0410-9148-cb99ea01b6c8
2001-10-19 11:25:48 +00:00

66 lines
1.3 KiB
C

#ifdef __GNUG__
#pragma implementation
#endif
#include "math_fracinset.h"
#include "mathed/support.h"
#include "Painter.h"
#include "support/LOstream.h"
MathFracInset::MathFracInset(bool atop)
: atop_(atop)
{}
MathInset * MathFracInset::clone() const
{
return new MathFracInset(*this);
}
void MathFracInset::metrics(MathMetricsInfo const & st) const
{
size_ = st;
size_.size = smallerStyleFrac(size_.size);
xcell(0).metrics(size_);
xcell(1).metrics(size_);
width_ = std::max(xcell(0).width(), xcell(1).width()) + 4;
ascent_ = xcell(0).height() + 4 + 5;
descent_ = xcell(1).height() + 4 - 5;
}
void MathFracInset::draw(Painter & pain, int x, int y) const
{
xo(x);
yo(y);
int m = x + width() / 2;
xcell(0).draw(pain, m - xcell(0).width() / 2, y - xcell(0).descent() - 3 - 5);
xcell(1).draw(pain, m - xcell(1).width() / 2, y + xcell(1).ascent() + 3 - 5);
if (!atop_)
pain.line(x + 2, y - 5, x + width() - 4, y - 5, LColor::mathline);
}
void MathFracInset::write(MathWriteInfo & os) const
{
if (atop_)
os << '{' << cell(0) << "\\atop " << cell(1) << '}';
else
os << "\\frac{" << cell(0) << "}{" << cell(1) << '}';
}
void MathFracInset::writeNormal(std::ostream & os) const
{
if (atop_)
os << "[atop ";
else
os << "[frac ";
cell(0).writeNormal(os);
os << " ";
cell(1).writeNormal(os);
os << "] ";
}