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Support for units and fractional units with values

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git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@20290 a592a061-630c-0410-9148-cb99ea01b6c8
This commit is contained in:
Martin Vermeer 2007-09-15 16:39:51 +00:00
parent 6c26624d39
commit 0ea6f2c7f1
6 changed files with 136 additions and 40 deletions
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2
lib/ui/stdtoolbars.inc
View File

@ -274,7 +274,9 @@ ToolbarSet
Item "Standard \\frac" "math-insert \frac"
Item "No hor. line \\atop" "math-insert \atop"
Item "Nice (3/4) \\nicefrac" "math-insert \nicefrac"
Item "Unit (864 m) \\unit" "math-insert \unit"
Item "Units (km/h) \\unitfrac" "math-insert \unitfrac"
Item "Units3 ( 20 km/h) \\unitfrac3" "math-insert \unitfracthree"
Item "Text frac (amsmath) \\tfrac" "math-insert \tfrac"
Item "Display frac (amsmath) \\dfrac" "math-insert \dfrac"
Item "Binomial \\choose" "math-insert \choose"

152
src/mathed/InsetMathFrac.cpp
View File

@ -17,13 +17,14 @@
#include "TextPainter.h"
#include "LaTeXFeatures.h"
#include "Color.h"
#include "Cursor.h"
#include "frontends/Painter.h"
namespace lyx {
InsetMathFrac::InsetMathFrac(Kind kind)
: kind_(kind)
InsetMathFrac::InsetMathFrac(Kind kind, InsetMath::idx_type ncells)
: InsetMathFracBase(ncells), kind_(kind)
{}
@ -45,24 +46,76 @@ InsetMathFrac const * InsetMathFrac::asFracInset() const
}
bool InsetMathFrac::idxRight(Cursor & cur) const
{
InsetMath::idx_type target;
if (kind_ == UNITFRAC3)
target = 0;
else if (kind_ == UNIT)
target = 1;
else
return false;
if (cur.idx() == target)
return false;
cur.idx() = target;
cur.pos() = cell(target).x2pos(cur.x_target());
return true;
}
bool InsetMathFrac::idxLeft(Cursor & cur) const
{
InsetMath::idx_type target;
if (kind_ == UNITFRAC3)
target = 2;
else if (kind_ == UNIT)
target = 0;
else
return false;
if (cur.idx() == target)
return false;
cur.idx() = target;
cur.pos() = cell(target).x2pos(cur.x_target());
return true;
}
bool InsetMathFrac::metrics(MetricsInfo & mi, Dimension & dim) const
{
FracChanger dummy(mi.base);
cell(0).metrics(mi);
cell(1).metrics(mi);
if (kind_ == NICEFRAC) {
dim.wid = cell(0).width() + cell(1).width() + 5;
dim.asc = cell(0).height() + 5;
dim.des = cell(1).height() - 5;
} else if (kind_ == UNITFRAC) {
if (kind_ == UNIT) {
cell(0).metrics(mi);
ShapeChanger dummy2(mi.base.font, Font::UP_SHAPE);
cell(1).metrics(mi);
dim.wid = cell(0).width() + cell(1).width() + 5;
dim.asc = cell(0).height() + 5;
dim.des = cell(1).height() - 5;
dim.asc = std::max(cell(0).ascent(), cell(1).ascent());
dim.des = std::max(cell(0).descent(), cell(1).descent());
} else if (kind_ == UNITFRAC3) {
cell(2).metrics(mi);
ShapeChanger dummy2(mi.base.font, Font::UP_SHAPE);
FracChanger dummy(mi.base);
cell(0).metrics(mi);
cell(1).metrics(mi);
dim.wid = cell(0).width() + cell(1).width() + cell(2).width() + 10;
dim.asc = std::max(cell(2).ascent(), cell(0).height() + 5);
dim.des = std::max(cell(2).descent(), cell(1).height() - 5);
} else {
dim.wid = std::max(cell(0).width(), cell(1).width()) + 2;
dim.asc = cell(0).height() + 2 + 5;
dim.des = cell(1).height() + 2 - 5;
FracChanger dummy(mi.base);
cell(0).metrics(mi);
cell(1).metrics(mi);
if (kind_ == NICEFRAC) {
dim.wid = cell(0).width() + cell(1).width() + 5;
dim.asc = cell(0).height() + 5;
dim.des = cell(1).height() - 5;
} else if (kind_ == UNITFRAC) {
ShapeChanger dummy2(mi.base.font, Font::UP_SHAPE);
dim.wid = cell(0).width() + cell(1).width() + 5;
dim.asc = cell(0).height() + 5;
dim.des = cell(1).height() - 5;
} else {
dim.wid = std::max(cell(0).width(), cell(1).width()) + 2;
dim.asc = cell(0).height() + 2 + 5;
dim.des = cell(1).height() + 2 - 5;
}
}
metricsMarkers(dim);
if (dim_ == dim)
@ -76,28 +129,48 @@ void InsetMathFrac::draw(PainterInfo & pi, int x, int y) const
{
setPosCache(pi, x, y);
int m = x + dim_.wid / 2;
FracChanger dummy(pi.base);
if (kind_ == NICEFRAC) {
cell(0).draw(pi, x + 2,
y - cell(0).descent() - 5);
cell(1).draw(pi, x + cell(0).width() + 5,
y + cell(1).ascent() / 2);
} else if (kind_ == UNITFRAC) {
if (kind_ == UNIT) {
cell(0).draw(pi, x + 1, y);
ShapeChanger dummy2(pi.base.font, Font::UP_SHAPE);
cell(0).draw(pi, x + 2,
y - cell(0).descent() - 5);
cell(1).draw(pi, x + cell(0).width() + 5,
y + cell(1).ascent() / 2);
cell(1).draw(pi, x + cell(0).width() + 5, y);
} else if (kind_ == UNITFRAC3) {
cell(2).draw(pi, x + 1, y);
ShapeChanger dummy2(pi.base.font, Font::UP_SHAPE);
FracChanger dummy(pi.base);
int xx = x + cell(2).width() + 5;
cell(0).draw(pi, xx + 2,
y - cell(0).descent() - 5);
cell(1).draw(pi, xx + cell(0).width() + 5,
y + cell(1).ascent() / 2);
} else {
cell(0).draw(pi, m - cell(0).width() / 2,
y - cell(0).descent() - 2 - 5);
cell(1).draw(pi, m - cell(1).width() / 2,
y + cell(1).ascent() + 2 - 5);
FracChanger dummy(pi.base);
if (kind_ == NICEFRAC) {
cell(0).draw(pi, x + 2,
y - cell(0).descent() - 5);
cell(1).draw(pi, x + cell(0).width() + 5,
y + cell(1).ascent() / 2);
} else if (kind_ == UNITFRAC) {
ShapeChanger dummy2(pi.base.font, Font::UP_SHAPE);
cell(0).draw(pi, x + 2,
y - cell(0).descent() - 5);
cell(1).draw(pi, x + cell(0).width() + 5,
y + cell(1).ascent() / 2);
} else {
// Classical fraction
cell(0).draw(pi, m - cell(0).width() / 2,
y - cell(0).descent() - 2 - 5);
cell(1).draw(pi, m - cell(1).width() / 2,
y + cell(1).ascent() + 2 - 5);
}
}
if (kind_ == NICEFRAC || kind_ == UNITFRAC) {
pi.pain.line(x + cell(0).width(),
if (kind_ == NICEFRAC || kind_ == UNITFRAC || kind_ == UNITFRAC3) {
// Diag line:
int xx = x;
if (kind_ == UNITFRAC3)
xx += cell(2).width() + 5;
pi.pain.line(xx + cell(0).width(),
y + dim_.des - 2,
x + cell(0).width() + 5,
xx + cell(0).width() + 5,
y - dim_.asc + 2, Color::math);
}
if (kind_ == FRAC || kind_ == OVER)
@ -144,6 +217,12 @@ void InsetMathFrac::write(WriteStream & os) const
case UNITFRAC:
InsetMathNest::write(os);
break;
case UNIT:
os << "\\unit[" << cell(0) << "]{" << cell(1) << '}';
break;
case UNITFRAC3:
os << "\\unitfrac[" << cell(2) << "]{" << cell(0) << "}{" << cell(1) << '}';
break;
}
}
@ -159,6 +238,10 @@ docstring InsetMathFrac::name() const
return from_ascii("nicefrac");
case UNITFRAC:
return from_ascii("unitfrac");
case UNITFRAC3:
return from_ascii("unitfracthree");
case UNIT:
return from_ascii("unit");
case ATOP:
return from_ascii("atop");
}
@ -199,7 +282,8 @@ void InsetMathFrac::mathmlize(MathStream & os) const
void InsetMathFrac::validate(LaTeXFeatures & features) const
{
if (kind_ == NICEFRAC || kind_ == UNITFRAC)
if (kind_ == NICEFRAC || kind_ == UNITFRAC
|| kind_ == UNIT || kind_ == UNITFRAC3)
features.require("units");
InsetMathNest::validate(features);
}

10
src/mathed/InsetMathFrac.h
View File

@ -28,11 +28,17 @@ public:
OVER,
ATOP,
NICEFRAC,
UNITFRAC
UNITFRAC,
UNIT,
UNITFRAC3
};
///
explicit InsetMathFrac(Kind kind = FRAC);
explicit InsetMathFrac(Kind kind = FRAC, idx_type ncells = 2);
///
bool idxRight(Cursor &) const;
///
bool idxLeft(Cursor &) const;
///
bool metrics(MetricsInfo & mi, Dimension & dim) const;
///

4
src/mathed/InsetMathFracBase.cpp
View File

@ -18,8 +18,8 @@
namespace lyx {
InsetMathFracBase::InsetMathFracBase()
: InsetMathNest(2)
InsetMathFracBase::InsetMathFracBase(idx_type ncells)
: InsetMathNest(ncells)
{}

2
src/mathed/InsetMathFracBase.h
View File

@ -21,7 +21,7 @@ namespace lyx {
class InsetMathFracBase : public InsetMathNest {
public:
///
InsetMathFracBase();
explicit InsetMathFracBase(idx_type ncells = 2);
///
bool idxUpDown(Cursor &, bool up) const;
///

6
src/mathed/MathFactory.cpp
View File

@ -260,7 +260,7 @@ MathAtom createInsetMath(char const * const s)
MathAtom createInsetMath(docstring const & s)
{
//lyxerr << "creating inset with name: '" << s << '\'' << endl;
//lyxerr << "creating inset with name: '" << to_utf8(s) << '\'' << endl;
latexkeys const * l = in_word_set(s);
if (l) {
docstring const & inset = l->inset;
@ -372,6 +372,10 @@ MathAtom createInsetMath(docstring const & s)
return MathAtom(new InsetMathFrac(InsetMathFrac::NICEFRAC));
if (s == "unitfrac")
return MathAtom(new InsetMathFrac(InsetMathFrac::UNITFRAC));
if (s == "unitfracthree")
return MathAtom(new InsetMathFrac(InsetMathFrac::UNITFRAC3, 3));
if (s == "unit")
return MathAtom(new InsetMathFrac(InsetMathFrac::UNIT));
//if (s == "infer")
// return MathAtom(new MathInferInset);
if (s == "atop")