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support for \cfrac in mathed, fixes bug 2473 and can also go to LyX 1.6.3

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@28639 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Uwe Stöhr 2009-02-28 02:43:26 +00:00
parent 07dba7f761
commit ff9f9c92ae
4 changed files with 80 additions and 0 deletions
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57
src/mathed/InsetMathFrac.cpp
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@ -5,6 +5,7 @@
*
* \author Alejandro Aguilar Sierra
* \author André Pönitz
* \author Uwe Stöhr
*
* Full author contact details are available in file CREDITS.
*/
@ -466,6 +467,62 @@ void InsetMathTFrac::validate(LaTeXFeatures & features) const
}
/////////////////////////////////////////////////////////////////////
//
// InsetMathCFrac
//
/////////////////////////////////////////////////////////////////////
Inset * InsetMathCFrac::clone() const
{
return new InsetMathCFrac(*this);
}
void InsetMathCFrac::metrics(MetricsInfo & mi, Dimension & dim) const
{
Dimension dim0, dim1;
cell(0).metrics(mi, dim0);
cell(1).metrics(mi, dim1);
dim.wid = max(dim0.wid, dim1.wid) + 2;
dim.asc = dim0.height() + 2 + 5;
dim.des = dim1.height() + 2 - 5;
}
void InsetMathCFrac::draw(PainterInfo & pi, int x, int y) const
{
Dimension const dim = dimension(*pi.base.bv);
Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
int m = x + dim.wid / 2;
cell(0).draw(pi, m - dim0.wid / 2, y - dim0.des - 2 - 5);
cell(1).draw(pi, m - dim1.wid / 2, y + dim1.asc + 2 - 5);
pi.pain.line(x + 1, y - 5, x + dim.wid - 2, y - 5, Color_math);
setPosCache(pi, x, y);
}
docstring InsetMathCFrac::name() const
{
return from_ascii("cfrac");
}
void InsetMathCFrac::mathmlize(MathStream & os) const
{
os << MTag("mcfrac") << cell(0) << cell(1) << ETag("mcfrac");
}
void InsetMathCFrac::validate(LaTeXFeatures & features) const
{
features.require("amsmath");
InsetMathNest::validate(features);
}
/////////////////////////////////////////////////////////////////////
//
// InsetMathBinom

20
src/mathed/InsetMathFrac.h
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@ -128,6 +128,26 @@ private:
};
/// \cfrac support
class InsetMathCFrac : public InsetMathFrac {
public:
///
InsetMathCFrac() {}
///
void metrics(MetricsInfo & mi, Dimension & dim) const;
///
void draw(PainterInfo &, int x, int y) const;
///
docstring name() const;
///
void mathmlize(MathStream &) const;
///
void validate(LaTeXFeatures & features) const;
private:
Inset * clone() const;
};
/// Binom like objects
class InsetMathBinom : public InsetMathFracBase {
public:

1
src/mathed/InsetMathNest.cpp
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@ -1928,6 +1928,7 @@ MathCompletionList::MathCompletionList(Cursor const & cur)
globals.push_back(from_ascii("\\color"));
globals.push_back(from_ascii("\\normalcolor"));
globals.push_back(from_ascii("\\textcolor"));
globals.push_back(from_ascii("\\cfrac"));
globals.push_back(from_ascii("\\dfrac"));
globals.push_back(from_ascii("\\tfrac"));
globals.push_back(from_ascii("\\dbinom"));

2
src/mathed/MathFactory.cpp
View File

@ -447,6 +447,8 @@ MathAtom createInsetMath(docstring const & s)
return MathAtom(new InsetMathColor(true));
if (s == "textcolor")
return MathAtom(new InsetMathColor(false));
if (s == "cfrac")
return MathAtom(new InsetMathCFrac);
if (s == "dfrac")
return MathAtom(new InsetMathDFrac);
if (s == "tfrac")