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f96b99dcb3
These are now properties of insets that can be operators :
InsetMathSymbols, InsetMathDecoration (for over/underbrace) and
InsetMathMacro (for its contents).
Each of these has a limit_ member that allows to remember a limit
forcing and a member defaultLimits() that indicates what to do in the
absence of such forcing. Moreover the write() method calls
writeLimits().
This allows to simplify the definitions of integrals in lib/symbols by
defining the integrals as macros of their "op" version, as it is done in
the style files.
Also, many hardcoded assumptions can now be removed.
The handling of LFUN_MATH_LIMITS is now done in InsetNest, which tries
successively to apply the limit change to (1) the character after
cursor, (2) the character before cursor and (3) the character at the
end of the inset (useful for script insets?)
The new code allows to define
\newcommand\int{\intop\limits}
but not
\newcommand\makelimits#1{#1\limits}
It is also possible to type explicitly \limits or \nolimits to modify
a symbol.
99 lines
2.2 KiB
C++
99 lines
2.2 KiB
C++
// -*- C++ -*-
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/**
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* \file InsetMathSymbol.h
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author André Pönitz
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*
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* Full author contact details are available in file CREDITS.
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*/
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#ifndef MATH_SYMBOLINSET_H
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#define MATH_SYMBOLINSET_H
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#include "InsetMath.h"
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namespace lyx {
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class latexkeys;
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// \xxx symbols that may take limits or grow in displayed formulæ.
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class InsetMathSymbol : public InsetMath {
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public:
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///
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explicit InsetMathSymbol(latexkeys const * l);
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///
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explicit InsetMathSymbol(char const * name);
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///
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explicit InsetMathSymbol(docstring const & name);
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///
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void metrics(MetricsInfo & mi, Dimension & dim) const;
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///
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void draw(PainterInfo &, int x, int y) const;
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///
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int kerning(BufferView const *) const { return kerning_; }
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///
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mode_type currentMode() const;
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///
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MathClass mathClass() const;
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///
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bool isOrdAlpha() const;
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/// The default limits value
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Limits defaultLimits() const;
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/// whether the inset has limit-like sub/superscript
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Limits limits() const { return limits_; }
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/// sets types of sub/superscripts
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void limits(Limits lim) { limits_ = lim; }
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/// identifies SymbolInset as such
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InsetMathSymbol const * asSymbolInset() const { return this; }
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/// the LaTeX name of the symbol (without the backslash)
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docstring name() const;
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/// request "external features"
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void validate(LaTeXFeatures & features) const;
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///
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void normalize(NormalStream &) const;
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///
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void maple(MapleStream &) const;
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///
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void maxima(MaximaStream &) const;
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///
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void mathematica(MathematicaStream &) const;
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///
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void mathmlize(MathStream &) const;
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///
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void htmlize(HtmlStream &) const;
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/// \param spacing controls whether we print spaces around
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/// "operator"-type symbols or just print them raw
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void htmlize(HtmlStream &, bool spacing) const;
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///
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void octave(OctaveStream &) const;
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///
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void write(WriteStream & os) const;
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///
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void infoize2(odocstream & os) const;
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///
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InsetCode lyxCode() const { return MATH_SYMBOL_CODE; }
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private:
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virtual Inset * clone() const;
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///
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latexkeys const * sym_;
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///
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Limits limits_ = AUTO_LIMITS;
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// FIXME: these depend on BufferView
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///
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mutable int h_ = 0;
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/// cached superscript kerning
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mutable int kerning_ = 0;
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};
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} // namespace lyx
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#endif
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