lyx_mirror/src/mathed/math_dfracinset.C
Martin Vermeer 9e6c3bd7c2 The nicefrac patch
* LaTeXFeatures.C
	(simplefeatures[]: add nicefrac

	* mathed/math_factory.C
	(createMathInset): change frac semantics

	* mathed/math_fracinset.[Ch]

	(MathFracInset::metrics):
	(MathFracInset::draw):
	(MathFracInset::drawT):
	(MathFracInset::write):
	(MathFracInset::mathmlize): add nicefrac stuff

	* mathed/math_dfracinset.C:
	* mathed/math_tfracinset.C: adapt semantics

	* frontends/qt2/ui/QMathDialogBase.ui

	* frontends/qt2/QMathDialog.[Ch]
	(QMathDialog::symbol_clicked): provide GUI



git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13566 a592a061-630c-0410-9148-cb99ea01b6c8
2006-04-06 09:46:01 +00:00

75 lines
1.5 KiB
C

/**
* \file math_dfracinset.C
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author André Pönitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "math_dfracinset.h"
#include "math_data.h"
#include "math_mathmlstream.h"
#include "LaTeXFeatures.h"
#include "LColor.h"
#include "frontends/Painter.h"
using std::string;
using std::max;
using std::auto_ptr;
MathDfracInset::MathDfracInset()
: MathFracInset()
{}
auto_ptr<InsetBase> MathDfracInset::doClone() const
{
return auto_ptr<InsetBase>(new MathDfracInset(*this));
}
void MathDfracInset::metrics(MetricsInfo & mi, Dimension & dim) const
{
cell(0).metrics(mi);
cell(1).metrics(mi);
dim_.wid = max(cell(0).width(), cell(1).width()) + 2;
dim_.asc = cell(0).height() + 2 + 5;
dim_.des = cell(1).height() + 2 - 5;
dim = dim_;
}
void MathDfracInset::draw(PainterInfo & pi, int x, int y) const
{
int m = x + dim_.wid / 2;
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);
pi.pain.line(x + 1, y - 5, x + dim_.wid - 2, y - 5, LColor::math);
setPosCache(pi, x, y);
}
string MathDfracInset::name() const
{
return "dfrac";
}
void MathDfracInset::mathmlize(MathMLStream & os) const
{
os << MTag("mdfrac") << cell(0) << cell(1) << ETag("mdfrac");
}
void MathDfracInset::validate(LaTeXFeatures & features) const
{
features.require("amsmath");
MathNestInset::validate(features);
}