lyx_mirror/src/mathed/InsetMathCancel.cpp

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/**
* \file InsetMathCancel.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Uwe St<EFBFBD>hr
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "InsetMathCancel.h"
#include "LaTeXFeatures.h"
#include "MathStream.h"
#include "frontends/Painter.h"
#include <ostream>
namespace lyx {
InsetMathCancel::InsetMathCancel(Buffer * buf, Kind k)
: InsetMathNest(buf, 1), kind_(k)
{}
Inset * InsetMathCancel::clone() const
{
return new InsetMathCancel(*this);
}
void InsetMathCancel::metrics(MetricsInfo & mi, Dimension & dim) const
{
cell(0).metrics(mi, dim);
metricsMarkers(dim);
}
void InsetMathCancel::draw(PainterInfo & pi, int x, int y) const
{
// We first draw the text and then an arrow
ColorCode const origcol = pi.base.font.color();
cell(0).draw(pi, x + 1, y);
Dimension const dim = dimension(*pi.base.bv);
// y1 \ /
// \ /
// \/
// /\
// / \
// y2 / \
// x1 x2
int const x2 = x + dim.wid;
int const x1 = x;
int const y1 = y - dim.asc;
int const y2 = y + dim.des;
if (kind_ == cancel)
pi.pain.line(x2, y1, x1, y2, origcol);
else if (kind_ == bcancel)
pi.pain.line(x2, y2, x1, y1, origcol);
else if (kind_ == xcancel) {
pi.pain.line(x2, y1, x1, y2, origcol);
pi.pain.line(x2, y2, x1, y1, origcol);
}
drawMarkers(pi, x, y);
}
void InsetMathCancel::write(WriteStream & os) const
{
MathEnsurer ensurer(os);
switch (kind_) {
case cancel:
os << "\\cancel{";
break;
case bcancel:
os << "\\bcancel{";
break;
case xcancel:
os << "\\xcancel{";
break;
}
os << cell(0) << '}';
}
void InsetMathCancel::normalize(NormalStream & os) const
{
switch (kind_) {
case cancel:
os << "[cancel ";
break;
case bcancel:
os << "[bcancel ";
break;
case xcancel:
os << "[xcancel ";
break;
}
os << cell(0) << ']';
}
void InsetMathCancel::infoize(odocstream & os) const
{
switch (kind_) {
case cancel:
os << "Cancel";
break;
case bcancel:
os << "Bcancel";
break;
case xcancel:
os << "Xcancel";
break;
}
}
void InsetMathCancel::validate(LaTeXFeatures & features) const
{
InsetMathNest::validate(features);
if (features.runparams().isLaTeX())
features.require("cancel");
InsetMathNest::validate(features);
}
} // namespace lyx