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bf0da33c9a
Also, replace lspace='thinmathspace' by constructs that are not deprecated. Contributed by lynx: https://www.lyx.org/trac/ticket/12629
157 lines
3.9 KiB
C++
157 lines
3.9 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 "MathSupport.h"
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#include "LaTeXFeatures.h"
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#include "MetricsInfo.h"
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#include "support/debug.h"
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#include "support/lassert.h"
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#include <algorithm>
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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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Changer dummy2 = mi.base.changeEnsureMath();
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Changer dummy = mi.base.changeScript();
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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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}
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void InsetMathXArrow::draw(PainterInfo & pi, int x, int y) const
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{
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Changer dummy2 = pi.base.changeEnsureMath();
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Changer dummy = pi.base.changeScript();
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Dimension const dim = dimension(*pi.base.bv);
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Dimension const & dim0 = cell(0).dimension(*pi.base.bv);
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// center the cells with the decoration
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cell(0).draw(pi, x + dim.width()/2 - dim0.width()/2, y - 10);
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Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
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cell(1).draw(pi, x + dim.width()/2 - dim1.width()/2, y + dim1.height());
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mathed_draw_deco(pi, x, y - 7, dim.wid, 5, name_);
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}
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void InsetMathXArrow::write(TeXMathStream & 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).empty())
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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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static std::map<string, string> latex_to_xml_entities = {
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{"xleftarrow", "←"},
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{"xrightarrow", "→"},
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{"xhookleftarrow", "↩"},
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{"xhookrightarrow", "↪"},
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{"xLeftarrow", "⇐"},
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{"xRightarrow", "⇒"},
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{"xleftrightarrow", "↔"},
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{"xLeftrightarrow", "⇔"},
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{"xleftharpoondown", "↽"},
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{"xleftharpoonup", "↼"},
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{"xleftrightharpoons", "⇋"},
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{"xrightharpoondown", "⇁"},
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{"xrightharpoonup", "⇀"},
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{"xrightleftharpoons", "⇌"},
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{"xmapsto", "↦"},
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};
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docstring map_latex_to(docstring latex)
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{
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auto mapping = latex_to_xml_entities.find(to_ascii(latex));
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if (mapping != latex_to_xml_entities.end()) {
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return from_ascii(mapping->second);
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} else {
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lyxerr << "mathmlize conversion for '" << latex << "' not implemented" << endl;
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LASSERT(false, return from_ascii(latex_to_xml_entities["xrightarrow"]));
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return docstring();
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}
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}
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void InsetMathXArrow::mathmlize(MathMLStream & ms) const
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{
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docstring arrow = map_latex_to(name_);
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ms << MTag("munderover", "accent='false' accentunder='false'")
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<< MTagInline("mo") << arrow << ETagInline("mo")
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<< cell(1) << cell(0)
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<< ETag("munderover");
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}
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void InsetMathXArrow::htmlize(HtmlStream & os) const
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{
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docstring arrow = map_latex_to(name_);
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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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if (name_ == "xleftarrow" || name_ == "xrightarrow")
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features.require("amsmath");
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else
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features.require("mathtools");
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if (features.runparams().math_flavor == OutputParams::MathAsHTML)
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// CSS adapted from eLyXer
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features.addCSSSnippet(
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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;}");
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InsetMathNest::validate(features);
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}
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} // namespace lyx
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