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"); }