void InsetMathSymbol::metrics(MetricsInfo & mi, Dimension & dim) const
{
//lyxerr << "metrics: symbol: '" << sym_->name
// << "' in font: '" << sym_->inset
// << "' drawn as: '" << sym_->draw
// << "'" << endl;
int const em = mathed_char_width(mi.base.font, 'M');
FontSetChanger dummy(mi.base, sym_->inset);
mathed_string_dim(mi.base.font, sym_->draw, dim);
docstring::const_reverse_iterator rit = sym_->draw.rbegin();
kerning_ = mathed_char_kerning(mi.base.font, *rit);
// correct height for broken cmex and wasy font
if (sym_->inset == "cmex" || sym_->inset == "wasy") {
h_ = 4 * dim.des / 5;
dim.asc += h_;
dim.des -= h_;
}
// seperate things a bit
if (isRelOp())
dim.wid += static_cast<int>(0.5 * em + 0.5);
else
dim.wid += static_cast<int>(0.1667 * em + 0.5);
scriptable_ = false;
if (mi.base.style == LM_ST_DISPLAY)
if (sym_->inset == "cmex" || sym_->inset == "esint" ||
sym_->extra == "funclim")
scriptable_ = true;
}
void InsetMathSymbol::draw(PainterInfo & pi, int x, int y) const
{
//lyxerr << "metrics: symbol: '" << sym_->name
// << "' in font: '" << sym_->inset
// << "' drawn as: '" << sym_->draw
// << "'" << endl;
int const em = mathed_char_width(pi.base.font, 'M');
if (isRelOp())
x += static_cast<int>(0.25*em+0.5);
else
x += static_cast<int>(0.0833*em+0.5);
FontSetChanger dummy(pi.base, sym_->inset.c_str());
pi.draw(x, y - h_, sym_->draw);
}
void expr()
{
/*
expr -> SimplExpr [ relop SimplExpr ]
*/
if ( debugMode) printf( "In expr\n");
SimplExpr();
while ( isRelOp( sym))
{
writesym();
nextsym();
SimplExpr();
}
if ( debugMode) printf( "Out expr\n");
}
