lyx_mirror/src/mathed/math_spaceinset.C
André Pönitz 4366ef931c - revive 1.1.6 eqnarray behaviour when pressing <Del> in the last position of a
cell.
- allow additional argument to math-macros for drawing purposes


git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@3823 a592a061-630c-0410-9148-cb99ea01b6c8
2002-03-25 12:11:25 +00:00

95 lines
1.6 KiB
C

#ifdef __GNUG__
#pragma implementation
#endif
#include "math_spaceinset.h"
#include "math_support.h"
#include "LColor.h"
#include "Painter.h"
#include "math_mathmlstream.h"
char const * latex_mathspace[] = {
"!", ",", ":", ";", "quad", "qquad", "lyxnegspace"
};
MathSpaceInset::MathSpaceInset(int sp)
: space_(sp)
{}
MathInset * MathSpaceInset::clone() const
{
return new MathSpaceInset(*this);
}
void MathSpaceInset::metrics(MathMetricsInfo const &) const
{
switch (space_) {
case 0: width_ = 6; break;
case 1: width_ = 6; break;
case 2: width_ = 8; break;
case 3: width_ = 10; break;
case 4: width_ = 20; break;
case 5: width_ = 40; break;
case 6: width_ = -2; break;
default: width_ = 6; break;
}
ascent_ = 4;
descent_ = 0;
}
void MathSpaceInset::draw(Painter & pain, int x, int y) const
{
// Sadly, HP-UX CC can't handle that kind of initialization.
// XPoint p[4] = {{++x, y-3}, {x, y}, {x+width-2, y}, {x+width-2, y-3}};
if (space_ == 6)
return;
int xp[4];
int yp[4];
xp[0] = ++x; yp[0] = y - 3;
xp[1] = x; yp[1] = y;
xp[2] = x + width_ - 2; yp[2] = y;
xp[3] = x + width_ - 2; yp[3] = y - 3;
pain.lines(xp, yp, 4, space_ ? LColor::latex : LColor::math);
}
void MathSpaceInset::incSpace()
{
space_ = (space_ + 1) % 6;
}
void MathSpaceInset::maplize(MapleStream & os) const
{
os << ' ';
}
void MathSpaceInset::octavize(OctaveStream & os) const
{
os << ' ';
}
void MathSpaceInset::normalize(NormalStream & os) const
{
os << "[space " << space_ << "] ";
}
void MathSpaceInset::write(WriteStream & os) const
{
if (space_ >= 0 && space_ < 7)
os << '\\' << latex_mathspace[space_] << ' ';
}