* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
- * \author André Pönitz
+ * \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#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"
+using namespace std;
namespace lyx {
InsetMathSymbol::InsetMathSymbol(latexkeys const * l)
- : sym_(l), h_(0), scriptable_(false)
+ : sym_(l)
{}
InsetMathSymbol::InsetMathSymbol(char const * name)
- : sym_(in_word_set(from_ascii(name))), h_(0), scriptable_(false)
+ : sym_(in_word_set(from_ascii(name)))
{}
InsetMathSymbol::InsetMathSymbol(docstring const & name)
- : sym_(in_word_set(name)), h_(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;
-
- 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;
+ // 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 (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);
+ mathedSymbolDraw(pi, x, y - h_, sym_);
}
-bool InsetMathSymbol::isRelOp() const
+InsetMath::mode_type InsetMathSymbol::currentMode() const
{
- return sym_->extra == "mathrel";
+ return sym_->extra == "textmode" ? TEXT_MODE : MATH_MODE;
}
}
-bool InsetMathSymbol::isScriptable() const
-{
- return scriptable_;
-}
-
-
-bool InsetMathSymbol::takesLimits() const
+MathClass InsetMathSymbol::mathClass() const
{
- return
- sym_->inset == "cmex" ||
- sym_->inset == "lyxboldsymb" ||
- sym_->inset == "esint" ||
- sym_->extra == "funclim";
-}
-
-
-void InsetMathSymbol::validate(LaTeXFeatures & features) const
-{
- if (!sym_->requires.empty())
- features.require(to_utf8(sym_->requires));
+ 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;
}
}
-char const * MathMLtype(docstring const & s)
+void InsetMathSymbol::mathmlize(MathMLStream & ms) const
{
- if (s == "mathop")
- return "mo";
- return "mi";
+ // FIXME We may need to do more interesting things
+ // with MathMLtype.
+ docstring tag = from_ascii(ms.namespacedTag(sym_->MathMLtype()));
+ ms << '<' << tag << ">";
+ if ((ms.xmlMode() && sym_->xmlname == "x") || (!ms.xmlMode() && sym_->htmlname == "x"))
+ // unknown so far
+ ms << name();
+ else if (ms.xmlMode())
+ ms << sym_->xmlname;
+ else
+ ms << sym_->htmlname;
+ ms << "</" << tag << '>';
}
-void InsetMathSymbol::mathmlize(MathStream & os) const
+void InsetMathSymbol::htmlize(HtmlStream & os, bool spacing) const
{
- char const * type = MathMLtype(sym_->extra);
- os << '<' << type << "> ";
- if (sym_->xmlname == "x") // unknown so far
- os << name();
+ // FIXME We may need to do more interesting things
+ // with MathMLtype.
+ char const * type = sym_->MathMLtype();
+ bool op = (std::string(type) == "mo");
+
+ if (sym_->htmlname == "x")
+ // unknown so far
+ os << ' ' << name() << ' ';
+ else if (op && spacing)
+ os << ' ' << sym_->htmlname << ' ';
else
- os << sym_->xmlname;
- os << " </" << type << '>';
+ os << sym_->htmlname;
+}
+
+
+void InsetMathSymbol::htmlize(HtmlStream & os) const
+{
+ htmlize(os, true);
}
}
-void InsetMathSymbol::write(WriteStream & os) const
+void InsetMathSymbol::write(TeXMathStream & os) const
{
- MathEnsurer ensurer(os);
+ unique_ptr<MathEnsurer> ensurer;
+ if (currentMode() != TEXT_MODE)
+ 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);
}
}
+void InsetMathSymbol::validate(LaTeXFeatures & features) const
+{
+ // this is not really the ideal place to do this, but we can't
+ // validate in InsetMathExInt.
+ if (features.runparams().math_flavor == OutputParams::MathAsHTML
+ && sym_->name == from_ascii("int")) {
+ features.addCSSSnippet(
+ "span.limits{display: inline-block; vertical-align: middle; text-align:center; font-size: 75%;}\n"
+ "span.limits span{display: block;}\n"
+ "span.intsym{font-size: 150%;}\n"
+ "sub.limit{font-size: 75%;}\n"
+ "sup.limit{font-size: 75%;}");
+ } else {
+ if (!sym_->required.empty())
+ features.require(sym_->required);
+ }
+}
+
} // namespace lyx
projects / lyx.git / blobdiff