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b520657039
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@35026 a592a061-630c-0410-9148-cb99ea01b6c8
115 lines
2.7 KiB
C++
115 lines
2.7 KiB
C++
/**
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* \file InsetMathXArrow.cpp
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* This file is part of LyX, the document processor.
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* Licence details can be found in the file COPYING.
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*
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* \author André Pönitz
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*
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* Full author contact details are available in file CREDITS.
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*/
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#include <config.h>
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#include "InsetMathXArrow.h"
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#include "MathData.h"
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#include "MathStream.h"
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#include "MathStream.h"
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#include "MathSupport.h"
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#include "LaTeXFeatures.h"
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using namespace std;
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namespace lyx {
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InsetMathXArrow::InsetMathXArrow(Buffer * buf, docstring const & name)
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: InsetMathFracBase(buf), name_(name)
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{}
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Inset * InsetMathXArrow::clone() const
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{
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return new InsetMathXArrow(*this);
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}
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void InsetMathXArrow::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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ScriptChanger dummy(mi.base);
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Dimension dim0;
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cell(0).metrics(mi, dim0);
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Dimension dim1;
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cell(1).metrics(mi, dim1);
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dim.wid = max(dim0.width(), dim1.width()) + 10;
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dim.asc = dim0.height() + 10;
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dim.des = dim1.height();
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metricsMarkers(dim);
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}
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void InsetMathXArrow::draw(PainterInfo & pi, int x, int y) const
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{
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ScriptChanger dummy(pi.base);
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cell(0).draw(pi, x + 5, y - 10);
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Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
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cell(1).draw(pi, x + 5, y + dim1.height());
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Dimension const dim = dimension(*pi.base.bv);
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mathed_draw_deco(pi, x + 1, y - 7, dim.wid - 2, 5, name_);
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drawMarkers(pi, x, y);
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}
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void InsetMathXArrow::write(WriteStream & os) const
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{
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MathEnsurer ensurer(os);
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os << '\\' << name_;
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if (cell(1).size())
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os << '[' << cell(1) << ']';
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os << '{' << cell(0) << '}';
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}
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void InsetMathXArrow::normalize(NormalStream & os) const
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{
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os << "[xarrow " << name_ << ' ' << cell(0) << ' ' << cell(1) << ']';
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}
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void InsetMathXArrow::mathmlize(MathStream & ms) const
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{
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char const * const arrow = name_ == "xleftarrow"
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? "←" : "→";
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ms << "<munderover accent='false' accentunder='false'>"
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<< arrow << cell(1) << cell(0)
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<< "</munderover>";
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}
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void InsetMathXArrow::htmlize(HtmlStream & os) const
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{
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char const * const arrow = name_ == "xleftarrow"
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? "←" : "→";
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os << MTag("span", "class='xarrow'")
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<< MTag("span", "class='xatop'") << cell(0) << ETag("span")
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<< MTag("span", "class='xabottom'") << arrow << ETag("span")
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<< ETag("span");
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}
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void InsetMathXArrow::validate(LaTeXFeatures & features) const
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{
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features.require("amsmath");
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if (features.runparams().math_flavor == OutputParams::MathAsHTML)
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// CSS adapted from eLyXer
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features.addPreambleSnippet("<style type=\"text/css\">\n"
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"span.xarrow{display: inline-block; vertical-align: middle; text-align:center;}\n"
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"span.xatop{display: block;}\n"
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"span.xabottom{display: block;}\n"
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"</style>");
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InsetMathNest::validate(features);
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}
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} // namespace lyx
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