lyx_mirror/src/mathed/math_tfracinset.C
Lars Gullik Bjønnes 59413be9a0 clone NVI, other small stuff
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@9295 a592a061-630c-0410-9148-cb99ea01b6c8
2004-11-23 23:04:52 +00:00

80 lines
1.6 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_tfracinset.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;
MathTfracInset::MathTfracInset()
: MathFracInset(false)
{}
auto_ptr<InsetBase> MathTfracInset::doClone() const
{
return auto_ptr<InsetBase>(new MathTfracInset(*this));
}
void MathTfracInset::metrics(MetricsInfo & mi, Dimension & dim) const
{
StyleChanger dummy(mi.base, LM_ST_SCRIPT);
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 MathTfracInset::draw(PainterInfo & pi, int x, int y) const
{
StyleChanger dummy(pi.base, LM_ST_SCRIPT);
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 MathTfracInset::name() const
{
return "tfrac";
}
void MathTfracInset::mathmlize(MathMLStream & os) const
{
os << MTag("mtfrac") << cell(0) << cell(1) << ETag("mtfrac");
}
void MathTfracInset::validate(LaTeXFeatures & features) const
{
features.require("amsmath");
MathNestInset::validate(features);
}