lyx_mirror/src/mathed/InsetMathDecoration.cpp

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/**
* \file InsetMathDecoration.cpp
* This file is part of LyX, the document processor.
* Licence details can be found in the file COPYING.
*
* \author Alejandro Aguilar Sierra
* \author Andr<EFBFBD> P<EFBFBD>nitz
*
* Full author contact details are available in file CREDITS.
*/
#include <config.h>
#include "InsetMathDecoration.h"
#include "MathData.h"
#include "MathParser.h"
#include "MathSupport.h"
#include "MathStream.h"
#include "LaTeXFeatures.h"
#include "debug.h"
#include "support/std_ostream.h"
namespace lyx {
InsetMathDecoration::InsetMathDecoration(latexkeys const * key)
: InsetMathNest(1), key_(key)
{
// lyxerr << " creating deco " << key->name << std::endl;
}
Inset * InsetMathDecoration::clone() const
{
return new InsetMathDecoration(*this);
}
bool InsetMathDecoration::upper() const
{
return key_->name.substr(0, 5) != "under";
}
bool InsetMathDecoration::isScriptable() const
{
return
key_->name == "overbrace" ||
key_->name == "underbrace" ||
key_->name == "overleftarrow" ||
key_->name == "overrightarrow" ||
key_->name == "overleftrightarrow" ||
key_->name == "underleftarrow" ||
key_->name == "underrightarrow" ||
key_->name == "underleftrightarrow";
}
bool InsetMathDecoration::protect() const
{
return
key_->name == "overbrace" ||
key_->name == "underbrace" ||
key_->name == "overleftarrow" ||
key_->name == "overrightarrow" ||
key_->name == "overleftrightarrow" ||
key_->name == "underleftarrow" ||
key_->name == "underrightarrow" ||
key_->name == "underleftrightarrow";
}
bool InsetMathDecoration::wide() const
{
return
key_->name == "overline" ||
key_->name == "underline" ||
key_->name == "overbrace" ||
key_->name == "underbrace" ||
key_->name == "overleftarrow" ||
key_->name == "overrightarrow" ||
key_->name == "overleftrightarrow" ||
key_->name == "widehat" ||
key_->name == "widetilde" ||
key_->name == "underleftarrow" ||
key_->name == "underrightarrow" ||
key_->name == "underleftrightarrow";
}
bool InsetMathDecoration::ams() const
{
return
key_->name == "overleftrightarrow" ||
key_->name == "underleftarrow" ||
key_->name == "underrightarrow" ||
key_->name == "underleftrightarrow";
}
void InsetMathDecoration::metrics(MetricsInfo & mi, Dimension & dim) const
{
cell(0).metrics(mi, dim);
dh_ = 6; //mathed_char_height(LM_TC_VAR, mi, 'I', ascent_, descent_);
dw_ = 6; //mathed_char_width(LM_TC_VAR, mi, 'x');
if (upper()) {
dy_ = -dim.asc - dh_;
dim.asc += dh_ + 1;
} else {
dy_ = dim.des + 1;
dim.des += dh_ + 2;
}
metricsMarkers(dim);
// Cache the inset dimension.
setDimCache(mi, dim);
}
void InsetMathDecoration::draw(PainterInfo & pi, int x, int y) const
{
cell(0).draw(pi, x + 1, y);
Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
if (wide())
mathed_draw_deco(pi, x + 1, y + dy_, dim0.wid, dh_, key_->name);
else
mathed_draw_deco(pi, x + 1 + (dim0.wid - dw_) / 2,
y + dy_, dw_, dh_, key_->name);
drawMarkers(pi, x, y);
setPosCache(pi, x, y);
}
void InsetMathDecoration::write(WriteStream & os) const
{
if (os.fragile() && protect())
os << "\\protect";
os << '\\' << key_->name << '{' << cell(0) << '}';
}
void InsetMathDecoration::normalize(NormalStream & os) const
{
os << "[deco " << key_->name << ' ' << cell(0) << ']';
}
void InsetMathDecoration::infoize(odocstream & os) const
{
os << "Deco: " << key_->name;
}
void InsetMathDecoration::validate(LaTeXFeatures & features) const
{
if (ams())
features.require("amsmath");
InsetMathNest::validate(features);
}
} // namespace lyx