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Implement variable size bigops

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The goal is to reproduce the change of size of operators like \sum wen they
are in display style.

The syntax of the symbols file has been extended to allow for two code
points (like 80|88 for \sum). In this case, the second one will be
used in display style.

Update the symbols file to handle all bigops from cmex, esint, wasy and
stmaryrd.

Let the code for math symbol inset handle symbols which can change size,
using the information from the symbols file.
This commit is contained in:
Jean-Marc Lasgouttes 2020-07-17 18:49:08 +02:00
parent 8d54457dbf
commit e8ee0100fc
6 changed files with 115 additions and 77 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

135
lib/symbols
View File

@ -244,6 +244,9 @@ tag* mbox forcetext
# symbols generated from fontmath.ltx
#
# When two codes n1|n2 are specified for charid, the the second one will
# be used in display mode. This is only useful for mathop symbold (e.g.\sum).
#symbol font charid charid-in-fallback-Xsymbol-font math-class HTML-entity XML-entity
alpha cmm 174 97 mathord α α
beta cmm 175 98 mathord β β
@ -319,18 +322,18 @@ iffont cmsy
else
\def\not{\kern4mu\lyxnot\kern-19mu}
endif
coprod cmex 96 0 mathop ⨿ ⨿
bigvee cmex 87 0 mathop ⋁ ⋁
bigwedge cmex 86 0 mathop ⋀ ⋀
biguplus cmex 85 0 mathop ⨄ ⨄
bigcap cmex 84 0 mathop ⋂ ⋂
bigcup cmex 83 0 mathop ⋃ ⋃
prod cmex 81 213 mathop ∏ ∏
sum cmex 80 229 mathop ∑ ∑
bigotimes cmex 78 0 mathop ⨂ ⨂
bigoplus cmex 76 0 mathop ⨁ ⨁
bigodot cmex 74 0 mathop ⨀ ⨀
bigsqcup cmex 70 0 mathop ⨆ ⨆
coprod cmex 96|97 0 mathop ⨿ ⨿
bigvee cmex 87|95 0 mathop ⋁ ⋁
bigwedge cmex 86|94 0 mathop ⋀ ⋀
biguplus cmex 85|93 0 mathop ⨄ ⨄
bigcap cmex 84|92 0 mathop ⋂ ⋂
bigcup cmex 83|91 0 mathop ⋃ ⋃
prod cmex 81|89 213 mathop ∏ ∏
sum cmex 80|88 229 mathop ∑ ∑
bigotimes cmex 78|79 0 mathop ⨂ ⨂
bigoplus cmex 76|77 0 mathop ⨁ ⨁
bigodot cmex 74|75 0 mathop ⨀ ⨀
bigsqcup cmex 70|71 0 mathop ⨆ ⨆
smallint cmsy 115 0 mathop ∫ ∫
triangleleft cmm 47 0 mathbin ◃ ◃
triangleright cmm 46 0 mathbin ▹ ▹
@ -854,8 +857,8 @@ wasypropto wasy 29 0 mathrel ∝ ∝
invneg wasy 24 0 mathrel ⌐ ⌐
ocircle wasy 35 0 mathbin ⊚ ⊚
logof wasy 22 0 mathrel x x
varint wasy 114 0 mathop ∫ ∫
varoint wasy 117 0 mathop ∫ ∫
varint wasy 114|119 0 mathop ∫ ∫
varoint wasy 117|122 0 mathop ∫ ∫
# Generated from stmaryrd.sty
@ -962,13 +965,13 @@ leftarrowtriangle stmry 94 0 mathrel x x stmaryrd
rightarrowtriangle stmry 95 0 mathrel x x stmaryrd
#bigtriangledown stmry 96 0 mathop x x stmaryrd #already in cmsy
#bigtriangleup stmry 97 0 mathop x x stmaryrd #already in cmsy
bigcurlyvee stmry 98 0 mathop x x stmaryrd
bigcurlywedge stmry 99 0 mathop x x stmaryrd
bigsqcap stmry 100 0 mathop x x stmaryrd
bigbox stmry 101 0 mathop x x stmaryrd
bigparallel stmry 102 0 mathop x x stmaryrd
biginterleave stmry 103 0 mathop x x stmaryrd
#hugetriangledown stmry 104 0 mathop x x stmaryrd # only in the font, not the .sty
bigcurlyvee stmry 98|106 0 mathop x x stmaryrd
bigcurlywedge stmry 99|107 0 mathop x x stmaryrd
bigsqcap stmry 100|108 0 mathop x x stmaryrd
bigbox stmry 101|109 0 mathop x x stmaryrd
bigparallel stmry 102|110 0 mathop x x stmaryrd
biginterleave stmry 103|111 0 mathop x x stmaryrd
#hugetriangledown stmry 104 0 mathop x x stmaryrd # only in the font, not the .sty
#hugetriangleup stmry 105 0 mathop x x stmaryrd # only in the font, not the .sty
#hugecurlyvee stmry 106 0 mathop x x stmaryrd # only in the font, not the .sty
#hugecurlywedge stmry 107 0 mathop x x stmaryrd # only in the font, not the .sty
@ -976,7 +979,7 @@ biginterleave stmry 103 0 mathop x x stmaryrd
#hugebox stmry 109 0 mathop x x stmaryrd # only in the font, not the .sty
#hugeparallel stmry 110 0 mathop x x stmaryrd # only in the font, not the .sty
#hugeinterleave stmry 111 0 mathop x x stmaryrd # only in the font, not the .sty
bignplus stmry 112 0 mathop x x stmaryrd # caution: named hugenplus in the font
bignplus stmry 112|120 0 mathop x x stmaryrd # caution: named hugenplus in the font
#largellbracket stmry 113 0 mathopen x x stmaryrd # only in the font, not the .sty
#Largellbracket stmry 114 0 mathopen x x stmaryrd # only in the font, not the .sty
#LARGEllbracket stmry 115 0 mathopen x x stmaryrd # only in the font, not the .sty
@ -1026,44 +1029,44 @@ tbond cmsy 180 186 mathord x x
# If the wasysym integrals are really wanted then one has to load the package
# manually and disable automatic loading of amsmath and esint.
iffont esint
int esint 001 0 mathop ∫ ∫ esint|amsmath
intop esint 001 0 mathop ∫ ∫ esint
iint esint 003 0 mathop ∬ ∬ esint|amsmath
iintop esint 003 0 mathop ∬ ∬ esint
iiint esint 005 0 mathop ∭ ∭ esint|amsmath
iiintop esint 005 0 mathop ∭ ∭ esint
iiiint esint 007 0 mathop ⨌ ⨌ esint|amsmath
iiiintop esint 007 0 mathop ⨌ ⨌ esint
int esint 001|002 0 mathop ∫ ∫ esint|amsmath
intop esint 001|002 0 mathop ∫ ∫ esint
iint esint 003|004 0 mathop ∬ ∬ esint|amsmath
iintop esint 003|004 0 mathop ∬ ∬ esint
iiint esint 005|006 0 mathop ∭ ∭ esint|amsmath
iiintop esint 005|006 0 mathop ∭ ∭ esint
iiiint esint 007|008 0 mathop ⨌ ⨌ esint|amsmath
iiiintop esint 007|008 0 mathop ⨌ ⨌ esint
#9 codepoint forbidden in qt4, 10,12,13 in qt5
oint esint 043 0 mathop ∮ ∮ esint
ointop esint 043 0 mathop ∮ ∮ esint
oiint esint 045 0 mathop ∯ ∯ esint
oiintop esint 045 0 mathop ∯ ∯ esint
sqint esint 015 0 mathop ⨖ ⨖ esint
sqintop esint 015 0 mathop ⨖ ⨖ esint
sqiint esint 017 0 mathop x esint
sqiintop esint 017 0 mathop x esint
dotsint esint 041 0 mathop ∫⋯∫ ∫⋯∫ esint
dotsintop esint 042 0 mathop ∫⋯∫ ∫⋯∫ esint
ointctrclockwise esint 023 0 mathop ∳ ∳ esint
ointctrclockwiseop esint 023 0 mathop ∳ ∳ esint
ointclockwise esint 025 0 mathop ∲ ∲ esint
ointclockwiseop esint 025 0 mathop ∲ ∲ esint
oint esint 043|044 0 mathop ∮ ∮ esint
ointop esint 043|044 0 mathop ∮ ∮ esint
oiint esint 045|046 0 mathop ∯ ∯ esint
oiintop esint 045|046 0 mathop ∯ ∯ esint
sqint esint 015|016 0 mathop ⨖ ⨖ esint
sqintop esint 015|016 0 mathop ⨖ ⨖ esint
sqiint esint 017|018 0 mathop x esint
sqiintop esint 017|017 0 mathop x esint
dotsint esint 041|042 0 mathop ∫⋯∫ ∫⋯∫ esint
dotsintop esint 041|042 0 mathop ∫⋯∫ ∫⋯∫ esint
ointctrclockwise esint 023|024 0 mathop ∳ ∳ esint
ointctrclockwiseop esint 023|024 0 mathop ∳ ∳ esint
ointclockwise esint 025|026 0 mathop ∲ ∲ esint
ointclockwiseop esint 025|026 0 mathop ∲ ∲ esint
else
int cmex 82 242 mathop ∫ ∫ esint|amsmath
intop cmex 82 242 mathop ∫ ∫ esint
iint wasy 115 0 mathop ∬ ∬ esint|amsmath
iintop wasy 115 0 mathop &Int ∬ esint
iiint wasy 116 0 mathop ∭ ∭ esint|amsmath
iiintop wasy 116 0 mathop ∭ ∭ esint
int cmex 82|90 242 mathop ∫ ∫ esint|amsmath
intop cmex 82|90 242 mathop ∫ ∫ esint
iint wasy 115|120 0 mathop ∬ ∬ esint|amsmath
iintop wasy 115|120 0 mathop &Int ∬ esint
iiint wasy 116|121 0 mathop ∭ ∭ esint|amsmath
iiintop wasy 116|121 0 mathop ∭ ∭ esint
\def\iiiint{\int\kern-6mu\int\kern-6mu\int\kern-6mu\int} esint|amsmath
\def\iiiintop{\int\kern-6mu\int\kern-6mu\int\kern-6mu\int} esint
\def\dotsint{\int\kern-3mu\cdots\kern-3mu\int} esint
\def\dotsintop{\int\kern-3mu\cdots\kern-3mu\int} esint
oint cmex 72 0 mathop ∮ ∮ esint
ointop cmex 72 0 mathop ∮ ∮ esint
oiint wasy 118 0 mathop ∯ ∯ esint
oiintop wasy 118 0 mathop ∯ ∯ esint
oint cmex 72|73 0 mathop ∮ ∮ esint
ointop cmex 72|73 0 mathop ∮ ∮ esint
oiint wasy 118|123 0 mathop ∯ ∯ esint
oiintop wasy 118|123 0 mathop ∯ ∯ esint
\def\sqint{\square\kern-17mu\int\kern6mu} esint
\def\sqintop{\square\kern-17mu\int\kern6mu} esint
\def\sqiint{\square\kern-20mu\iint\kern3mu} esint
@ -1074,18 +1077,18 @@ oiintop wasy 118 0 mathop ∯ ∯
\def\ointclockwiseop{\circlearrowright\kern-21mu\int\kern6mu} esint
endif
varointclockwise esint 027 0 mathop ∲ ∲ esint
varointclockwiseop esint 027 0 mathop ∲ ∲ esint
varointctrclockwise esint 029 0 mathop ∳ ∳ esint
varointctrclockwiseop esint 029 0 mathop ∳ ∳ esint
fint esint 031 0 mathop ⨏ ⨏ esint
fintop esint 031 0 mathop ⨏ ⨏ esint
varoiint esint 033 0 mathop ∯ ∯ esint
varoiintop esint 033 0 mathop ∯ ∯ esint
landupint esint 035 0 mathop x x esint
landupintop esint 035 0 mathop x x esint
landdownint esint 037 0 mathop x x esint
landdownintop esint 037 0 mathop x x esint
varointclockwise esint 027|028 0 mathop ∲ ∲ esint
varointclockwiseop esint 027|028 0 mathop ∲ ∲ esint
varointctrclockwise esint 029|030 0 mathop ∳ ∳ esint
varointctrclockwiseop esint 029|030 0 mathop ∳ ∳ esint
fint esint 031|032 0 mathop ⨏ ⨏ esint
fintop esint 031|032 0 mathop ⨏ ⨏ esint
varoiint esint 033|034 0 mathop ∯ ∯ esint
varoiintop esint 033|034 0 mathop ∯ ∯ esint
landupint esint 035|036 0 mathop x x esint
landupintop esint 035|036 0 mathop x x esint
landdownint esint 037|038 0 mathop x x esint
landdownintop esint 037|038 0 mathop x x esint
# From the amsmath package:

27
src/mathed/InsetMathSymbol.cpp
View File

@ -60,17 +60,32 @@ docstring InsetMathSymbol::name() const
void InsetMathSymbol::metrics(MetricsInfo & mi, Dimension & dim) const
{
// set dim
mathedSymbolDim(mi.base, dim, sym_);
// set kerning_
kerning_ = mathed_char_kerning(mi.base.font, *sym_->draw.rbegin());
// correct height for broken cmex and wasy font
if (sym_->inset == "cmex" || sym_->inset == "wasy") {
h_ = 4 * dim.des / 5;
if (sym_->draw != sym_->name) {
// set dim
// FIXME: this should depend on BufferView
// set kerning_
kerning_ = mathed_char_kerning(mi.base.font,
mathedSymbol(mi.base, sym_).back());
// 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_;
}
// set scriptable_
//FIXME: get rid of that? Only "funclim" probably, along with
// class==MC_OP. The issue is to implement \limits properly.
scriptable_ = false;
if (mi.base.font.style() == DISPLAY_STYLE)
if (sym_->inset == "cmex" || sym_->inset == "esint" ||

14
src/mathed/MathFactory.cpp
View File

@ -155,6 +155,7 @@ void initSymbols()
bool skip = false;
while (getline(fs, line)) {
int charid = 0;
int dsp_charid = 0;
int fallbackid = 0;
if (line.empty() || line[0] == '#')
continue;
@ -243,9 +244,12 @@ void initSymbols()
docstring help;
is >> tmp.name >> help;
tmp.inset = to_ascii(help);
if (isFontName(tmp.inset))
is >> charid >> fallbackid >> tmp.extra >> tmp.htmlname >> tmp.xmlname;
else
if (isFontName(tmp.inset)) {
is >> help >> fallbackid >> tmp.extra >> tmp.htmlname >> tmp.xmlname;
docstring cid, dsp_cid;
idocstringstream is2(subst(help, '|', ' '));
is2 >> charid >> dsp_charid;
} else
is >> tmp.extra;
// requires is optional
if (is) {
@ -289,6 +293,10 @@ void initSymbols()
} else if (isMathFontAvailable(tmp.inset) && canBeDisplayed(charid)) {
LYXERR(Debug::MATHED, "symbol available for " << to_utf8(tmp.name));
tmp.draw.push_back(char_type(charid));
if (dsp_charid && canBeDisplayed(dsp_charid)) {
LYXERR(Debug::MATHED, "large symbol available for " << to_utf8(tmp.name));
tmp.dsp_draw.push_back(char_type(dsp_charid));
}
} else if (fallbackid && isMathFontAvailable(symbol_font) &&
canBeDisplayed(fallbackid)) {
if (tmp.inset == "cmex")

3
src/mathed/MathParser.h
View File

@ -52,6 +52,9 @@ public:
* on screen.
*/
docstring draw;
/// the same thing, but as an alternative in display mode
// Useful for \sum operator, for example
docstring dsp_draw;
/// operator/..., fontname e
docstring extra;
/// how is this called as HTML entity in MathML?

11
src/mathed/MathSupport.cpp
View File

@ -673,6 +673,13 @@ void mathed_draw_deco(PainterInfo & pi, int x, int y, int w, int h,
}
docstring const & mathedSymbol(MetricsBase & mb, latexkeys const * sym)
{
return (mb.font.style() == DISPLAY_STYLE && !sym->dsp_draw.empty()) ?
sym->dsp_draw : sym->draw;
}
void mathedSymbolDim(MetricsBase & mb, Dimension & dim, latexkeys const * sym)
{
LASSERT((bool)sym, return);
@ -686,7 +693,7 @@ void mathedSymbolDim(MetricsBase & mb, Dimension & dim, latexkeys const * sym)
mb.fontname == "mathit";
std::string const font = italic_upcase_greek ? "cmm" : sym->inset;
Changer dummy = mb.changeFontSet(font);
mathed_string_dim(mb.font, sym->draw, dim);
mathed_string_dim(mb.font, mathedSymbol(mb, sym), dim);
}
@ -704,7 +711,7 @@ void mathedSymbolDraw(PainterInfo & pi, int x, int y, latexkeys const * sym)
std::string const font = italic_upcase_greek ? "cmm" : sym->inset;
Changer dummy = pi.base.changeFontSet(font);
pi.draw(x, y, sym->draw);
pi.draw(x, y, mathedSymbol(pi.base, sym));
}

2
src/mathed/MathSupport.h
View File

@ -55,6 +55,8 @@ void mathed_string_dim(FontInfo const & font,
int mathed_string_width(FontInfo const &, docstring const & s);
docstring const & mathedSymbol(MetricsBase & mb, latexkeys const * sym);
void mathedSymbolDim(MetricsBase & mb, Dimension & dim, latexkeys const * sym);
void mathedSymbolDraw(PainterInfo & pi, int x, int y, latexkeys const * sym);