lyx_mirror/src/mathed/InsetMathXArrow.cpp
Guillaume Munch 348e0241af Do not include MetricsInfo.h in MathStream.h
Fixes the FIXME in MathStream.h
2016-06-13 08:46:15 +01:00

194 lines
4.9 KiB
C++

/**
* \file InsetMathXArrow.cpp
* 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 "support/lassert.h"
#include "InsetMathXArrow.h"
#include "MathData.h"
#include "MathStream.h"
#include "MathStream.h"
#include "MathSupport.h"
#include "LaTeXFeatures.h"
#include "MetricsInfo.h"
#include <algorithm>
using namespace std;
namespace lyx {
InsetMathXArrow::InsetMathXArrow(Buffer * buf, docstring const & name)
: InsetMathFracBase(buf), name_(name)
{}
Inset * InsetMathXArrow::clone() const
{
return new InsetMathXArrow(*this);
}
void InsetMathXArrow::metrics(MetricsInfo & mi, Dimension & dim) const
{
Changer dummy = mi.base.changeScript();
Dimension dim0;
cell(0).metrics(mi, dim0);
Dimension dim1;
cell(1).metrics(mi, dim1);
dim.wid = max(dim0.width(), dim1.width()) + 10;
dim.asc = dim0.height() + 10;
dim.des = dim1.height();
metricsMarkers(dim);
}
void InsetMathXArrow::draw(PainterInfo & pi, int x, int y) const
{
Changer dummy = pi.base.changeScript();
Dimension const dim = dimension(*pi.base.bv);
Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
// center the cells with the decoration
cell(0).draw(pi, x + dim.width()/2 - dim0.width()/2, y - 10);
Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
cell(1).draw(pi, x + dim.width()/2 - dim1.width()/2, y + dim1.height());
mathed_draw_deco(pi, x + 1, y - 7, dim.wid - 2, 5, name_);
drawMarkers(pi, x, y);
}
void InsetMathXArrow::write(WriteStream & os) const
{
MathEnsurer ensurer(os);
os << '\\' << name_;
if (!cell(1).empty())
os << '[' << cell(1) << ']';
os << '{' << cell(0) << '}';
}
void InsetMathXArrow::normalize(NormalStream & os) const
{
os << "[xarrow " << name_ << ' ' << cell(0) << ' ' << cell(1) << ']';
}
void InsetMathXArrow::mathmlize(MathStream & ms) const
{
char const * arrow;
if (name_ == "xleftarrow")
arrow = "&larr;";
else if (name_ == "xrightarrow")
arrow = "&rarr;";
else if (name_ == "xhookleftarrow")
arrow = "&larrhk;";
else if (name_ == "xhookrightarrow")
arrow = "&rarrhk;";
else if (name_ == "xLeftarrow")
arrow = "&lArr;";
else if (name_ == "xRightarrow")
arrow = "&rArr;";
else if (name_ == "xleftrightarrow")
arrow = "&leftrightarrow;";
else if (name_ == "xLeftrightarrow")
arrow = "&Leftrightarrow;";
else if (name_ == "xleftharpoondown")
arrow = "&leftharpoondown;";
else if (name_ == "xleftharpoonup")
arrow = "&leftharpoonup;";
else if (name_ == "xleftrightharpoons")
arrow = "&leftrightharpoons;";
else if (name_ == "xrightharpoondown")
arrow = "&rightharpoondown;";
else if (name_ == "xrightharpoonup")
arrow = "&rightharpoonup;";
else if (name_ == "xrightleftharpoons")
arrow = "&rightleftharpoons;";
else if (name_ == "xmapsto")
arrow = "&mapsto;";
else {
lyxerr << "mathmlize conversion for '" << name_ << "' not implemented" << endl;
LASSERT(false, arrow = "&rarr;");
}
ms << "<munderover accent='false' accentunder='false'>"
<< arrow << cell(1) << cell(0)
<< "</munderover>";
}
void InsetMathXArrow::htmlize(HtmlStream & os) const
{
char const * arrow;
if (name_ == "xleftarrow")
arrow = "&larr;";
else if (name_ == "xrightarrow")
arrow = "&rarr;";
else if (name_ == "xhookleftarrow")
arrow = "&larrhk;";
else if (name_ == "xhookrightarrow")
arrow = "&rarrhk;";
else if (name_ == "xLeftarrow")
arrow = "&lArr;";
else if (name_ == "xRightarrow")
arrow = "&rArr;";
else if (name_ == "xleftrightarrow")
arrow = "&leftrightarrow;";
else if (name_ == "xLeftrightarrow")
arrow = "&Leftrightarrow;";
else if (name_ == "xleftharpoondown")
arrow = "&leftharpoondown;";
else if (name_ == "xleftharpoonup")
arrow = "&leftharpoonup;";
else if (name_ == "xleftrightharpoons")
arrow = "&leftrightharpoons;";
else if (name_ == "xrightharpoondown")
arrow = "&rightharpoondown;";
else if (name_ == "xrightharpoonup")
arrow = "&rightharpoonup;";
else if (name_ == "xrightleftharpoons")
arrow = "&rightleftharpoons;";
else if (name_ == "xmapsto")
arrow = "&mapsto;";
else {
lyxerr << "htmlize conversion for '" << name_ << "' not implemented" << endl;
LASSERT(false, arrow = "&rarr;");
}
os << MTag("span", "class='xarrow'")
<< MTag("span", "class='xatop'") << cell(0) << ETag("span")
<< MTag("span", "class='xabottom'") << arrow << ETag("span")
<< ETag("span");
}
void InsetMathXArrow::validate(LaTeXFeatures & features) const
{
if (name_ == "xleftarrow" || name_ == "xrightarrow")
features.require("amsmath");
else
features.require("mathtools");
if (features.runparams().math_flavor == OutputParams::MathAsHTML)
// CSS adapted from eLyXer
features.addCSSSnippet(
"span.xarrow{display: inline-block; vertical-align: middle; text-align:center;}\n"
"span.xatop{display: block;}\n"
"span.xabottom{display: block;}");
InsetMathNest::validate(features);
}
} // namespace lyx