lyx_mirror/src/mathed/math_sqrtinset.C

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#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(MathStyles st) const
{
xcell(0).metrics(st);
size_ = st;
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
{
xo(x);
yo(y);
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(std::ostream & os, bool fragile) const
{
os << "\\sqrt{";
cell(0).write(os, fragile);
os << '}';
}
void MathSqrtInset::writeNormal(std::ostream & os) const
{
os << "[sqrt ";
cell(0).writeNormal(os);
os << "] ";
}