lyx_mirror/src/mathed/math_spaceinset.C

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#ifdef __GNUG__
#pragma implementation
#endif
#include "math_spaceinset.h"
#include "math_support.h"
#include "LColor.h"
#include "frontends/Painter.h"
#include "math_mathmlstream.h"
#include "LaTeXFeatures.h"
#include "debug.h"
char const * latex_mathspace[] = {
"!", "negmedspace", "negthickspace", // negative space
",", ":", ";", "quad", "qquad", // positive space
"lyxnegspace", "lyxposspace" // LyX special ("unvisible space")
};
int const nSpace = sizeof(latex_mathspace)/sizeof(char *);
MathSpaceInset::MathSpaceInset(int sp)
: space_(sp)
{}
MathSpaceInset::MathSpaceInset(string const & name)
: space_(1)
{
for (int i = 0; i < nSpace; ++i)
if (latex_mathspace[i] == name)
space_ = i;
}
MathInset * MathSpaceInset::clone() const
{
return new MathSpaceInset(*this);
}
void MathSpaceInset::metrics(MathMetricsInfo &) const
{
switch (space_) {
case 0: dim_.w = 6; break;
case 1: dim_.w = 8; break;
case 2: dim_.w = 10; break;
case 3: dim_.w = 6; break;
case 4: dim_.w = 8; break;
case 5: dim_.w = 10; break;
case 6: dim_.w = 20; break;
case 7: dim_.w = 40; break;
case 8: dim_.w = -2; break;
case 9: dim_.w = 2; break;
default: dim_.w = 6;
}
dim_.a = 4;
dim_.d = 0;
}
void MathSpaceInset::draw(MathPainterInfo & pi, 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_ >= nSpace - 2)
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;
pi.pain.lines(xp, yp, 4, (space_ < 3) ? LColor::latex : LColor::math);
}
void MathSpaceInset::incSpace()
{
space_ = (space_ + 1) % (nSpace - 2);
}
void MathSpaceInset::validate(LaTeXFeatures & features) const
{
if (space_ >= 0 && space_< nSpace) {
if ((latex_mathspace[space_] == "negmedspace")
|| (latex_mathspace[space_] == "negthickspace"))
features.require("amsmath");
}
}
void MathSpaceInset::maplize(MapleStream & os) const
{
os << ' ';
}
void MathSpaceInset::mathematicize(MathematicaStream & os) const
{
os << ' ';
}
void MathSpaceInset::octavize(OctaveStream & os) const
{
os << ' ';
}
void MathSpaceInset::normalize(NormalStream & os) const
{
os << "[space " << int(space_) << "] ";
}
void MathSpaceInset::write(WriteStream & os) const
{
if (space_ >= 0 && space_ < nSpace) {
os << '\\' << latex_mathspace[space_];
os.pendingSpace(true);
}
}