lyx_mirror/src/mathed/math_sqrtinset.C
André Pönitz 0f23028f4b some support for det and abs for math-extern
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@2970 a592a061-630c-0410-9148-cb99ea01b6c8
2001-11-07 10:21:51 +00:00

64 lines
1.1 KiB
C

#ifdef __GNUG__
#pragma implementation
#endif
#include "math_sqrtinset.h"
#include "LColor.h"
#include "Painter.h"
#include "support/LOstream.h"
MathSqrtInset::MathSqrtInset()
: MathNestInset(1)
{}
MathInset * MathSqrtInset::clone() const
{
return new MathSqrtInset(*this);
}
void MathSqrtInset::metrics(MathMetricsInfo const & mi) const
{
xcell(0).metrics(mi);
ascent_ = xcell(0).ascent() + 4;
descent_ = xcell(0).descent() + 2;
width_ = xcell(0).width() + 12;
}
void MathSqrtInset::draw(Painter & pain, int x, int y) const
{
xcell(0).draw(pain, x + 10, y);
int const a = ascent_;
int const d = descent_;
int xp[4];
int yp[4];
xp[0] = x + width_; yp[0] = y - a + 1;
xp[1] = x + 8; yp[1] = y - a + 1;
xp[2] = x + 5; yp[2] = y + d - 1;
xp[3] = x; yp[3] = y + (d - a)/2;
pain.lines(xp, yp, 4, LColor::mathline);
}
void MathSqrtInset::write(MathWriteInfo & os) const
{
os << "\\sqrt{" << cell(0) << '}';
}
void MathSqrtInset::writeNormal(std::ostream & os) const
{
os << "[sqrt ";
cell(0).writeNormal(os);
os << "]";
}
string MathSqrtInset::maplize() const
{
return "sqrt(" + cell(0).maplize() + ')';
}