#include "InsetMathSymbol.h"
-#include "Dimension.h"
-#include "LaTeXFeatures.h"
#include "MathAtom.h"
#include "MathParser.h"
#include "MathStream.h"
#include "MathSupport.h"
+#include "Dimension.h"
+#include "LaTeXFeatures.h"
+#include "MetricsInfo.h"
+
#include "support/debug.h"
#include "support/docstream.h"
#include "support/textutils.h"
+#include "support/unique_ptr.h"
-#include <boost/scoped_ptr.hpp>
-
+using namespace std;
namespace lyx {
InsetMathSymbol::InsetMathSymbol(latexkeys const * l)
- : sym_(l), h_(0), kerning_(0), scriptable_(false)
+ : sym_(l)
{}
InsetMathSymbol::InsetMathSymbol(char const * name)
- : sym_(in_word_set(from_ascii(name))), h_(0),
- kerning_(0), scriptable_(false)
+ : sym_(in_word_set(from_ascii(name)))
{}
InsetMathSymbol::InsetMathSymbol(docstring const & name)
- : sym_(in_word_set(name)), h_(0), kerning_(0), scriptable_(false)
+ : sym_(in_word_set(name))
{}
}
+/// The default limits value
+Limits InsetMathSymbol::defaultLimits(bool display) const
+{
+ if (allowsLimitsChange() && sym_->extra != "func" && display)
+ return LIMITS;
+ else
+ return NO_LIMITS;
+}
+
+
void InsetMathSymbol::metrics(MetricsInfo & mi, Dimension & dim) const
{
- //lyxerr << "metrics: symbol: '" << sym_->name
- // << "' in font: '" << sym_->inset
- // << "' drawn as: '" << sym_->draw
- // << "'" << endl;
-
- bool const italic_upcase_greek = sym_->inset == "cmr" &&
- sym_->extra == "mathalpha" &&
- mi.base.fontname == "mathit";
- std::string const font = italic_upcase_greek ? "cmm" : sym_->inset;
- FontSetChanger dummy(mi.base, from_ascii(font));
- 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;
+ // set dim
+ // FIXME: this should depend on BufferView
+ // set negative kerning_ so that a subscript is moved leftward
+ kerning_ = -mathedSymbolDim(mi.base, dim, sym_);
+ if (sym_->draw != sym_->name) {
+ // align character vertically
+ // FIXME: this should depend on BufferView
+ h_ = 0;
+ if (mathClass() == MC_OP) {
+ // center the symbol around the fraction axis
+ // See rule 13 of Appendix G of the TeXbook.
+ h_ = axis_height(mi.base) + (dim.des - dim.asc) / 2;
+ } else if (sym_->inset == "wasy") {
+ // correct height for broken wasy font
+ h_ = 4 * dim.des / 5;
+ }
dim.asc += h_;
dim.des -= h_;
}
- // seperate things a bit
- if (isMathBin())
- dim.wid += 2 * mathed_medmuskip(mi.base.font);
- else if (isMathRel())
- dim.wid += 2 * mathed_thickmuskip(mi.base.font);
- else if (isMathPunct())
- dim.wid += mathed_thinmuskip(mi.base.font);
- // FIXME: I see no reason for this
- //else
- // dim.wid += support::iround(0.1667 * em);
-
- scriptable_ = false;
- if (mi.base.style == LM_ST_DISPLAY)
- if (sym_->inset == "cmex" || sym_->inset == "esint" ||
- sym_->extra == "funclim" ||
- (sym_->inset == "stmry" && sym_->extra == "mathop"))
- 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;
-
- bool const italic_upcase_greek = sym_->inset == "cmr" &&
- sym_->extra == "mathalpha" &&
- pi.base.fontname == "mathit";
- std::string const font = italic_upcase_greek ? "cmm" : sym_->inset;
- if (isMathBin())
- x += mathed_medmuskip(pi.base.font);
- else if (isMathRel())
- x += mathed_thickmuskip(pi.base.font);
- // FIXME: I see no reason for this
- //else
- // x += support::iround(0.0833 * em);
-
- FontSetChanger dummy(pi.base, from_ascii(font));
- pi.draw(x, y - h_, sym_->draw);
+ mathedSymbolDraw(pi, x, y - h_, sym_);
}
}
-bool InsetMathSymbol::isMathBin() const
-{
- return sym_->extra == "mathbin";
-}
-
-
-bool InsetMathSymbol::isMathRel() const
-{
- return sym_->extra == "mathrel";
-}
-
-
-bool InsetMathSymbol::isMathPunct() const
-{
- return sym_->extra == "mathpunct";
-}
-
-
bool InsetMathSymbol::isOrdAlpha() const
{
return sym_->extra == "mathord" || sym_->extra == "mathalpha";
}
-bool InsetMathSymbol::isScriptable() const
+MathClass InsetMathSymbol::mathClass() const
{
- return scriptable_;
-}
-
-
-bool InsetMathSymbol::takesLimits() const
-{
- return
- sym_->inset == "cmex" ||
- sym_->inset == "lyxboldsymb" ||
- sym_->inset == "esint" ||
- sym_->extra == "funclim" ||
- (sym_->inset == "stmry" && sym_->extra == "mathop");
+ if (sym_->extra == "func" || sym_->extra == "funclim")
+ return MC_OP;
+ MathClass const mc = string_to_class(sym_->extra);
+ return (mc == MC_UNKNOWN) ? MC_ORD : mc;
}
}
-void InsetMathSymbol::mathmlize(MathStream & os) const
+void InsetMathSymbol::mathmlize(MathMLStream & ms) const
{
// FIXME We may need to do more interesting things
// with MathMLtype.
- char const * type = sym_->MathMLtype();
- os << '<' << type << "> ";
- if (sym_->xmlname == "x")
+ docstring tag = from_ascii(ms.namespacedTag(sym_->MathMLtype()));
+ ms << '<' << tag << ">";
+ if ((ms.xmlMode() && sym_->xmlname == "x") || (!ms.xmlMode() && sym_->htmlname == "x"))
// unknown so far
- os << name();
+ ms << name();
+ else if (ms.xmlMode())
+ ms << sym_->xmlname;
else
- os << sym_->xmlname;
- os << " </" << type << '>';
+ ms << sym_->htmlname;
+ ms << "</" << tag << '>';
}
char const * type = sym_->MathMLtype();
bool op = (std::string(type) == "mo");
- if (sym_->xmlname == "x")
+ if (sym_->htmlname == "x")
// unknown so far
os << ' ' << name() << ' ';
else if (op && spacing)
- os << ' ' << sym_->xmlname << ' ';
+ os << ' ' << sym_->htmlname << ' ';
else
- os << sym_->xmlname;
+ os << sym_->htmlname;
}
}
-void InsetMathSymbol::write(WriteStream & os) const
+void InsetMathSymbol::write(TeXMathStream & os) const
{
- boost::scoped_ptr<MathEnsurer> ensurer;
+ unique_ptr<MathEnsurer> ensurer;
if (currentMode() != TEXT_MODE)
- ensurer.reset(new MathEnsurer(os));
+ ensurer = make_unique<MathEnsurer>(os);
+ else
+ ensurer = make_unique<MathEnsurer>(os, false, true, true);
os << '\\' << name();
// $,#, etc. In theory the restriction based on catcodes, but then
return;
os.pendingSpace(true);
+ writeLimits(os);
}
"sub.limit{font-size: 75%;}\n"
"sup.limit{font-size: 75%;}");
} else {
- if (!sym_->requires.empty())
- features.require(sym_->requires);
+ if (!sym_->required.empty())
+ features.require(sym_->required);
}
}
projects / lyx.git / blobdiff