#include <config.h>
#include "InsetMathXArrow.h"
+
#include "MathData.h"
#include "MathStream.h"
-#include "MathStream.h"
#include "MathSupport.h"
#include "LaTeXFeatures.h"
+#include "MetricsInfo.h"
+
+#include "support/debug.h"
+#include "support/lassert.h"
+
+#include <algorithm>
using namespace std;
void InsetMathXArrow::metrics(MetricsInfo & mi, Dimension & dim) const
{
- ScriptChanger dummy(mi.base);
+ Changer dummy2 = mi.base.changeEnsureMath();
+ Changer dummy = mi.base.changeScript();
Dimension dim0;
cell(0).metrics(mi, dim0);
Dimension 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
{
- ScriptChanger dummy(pi.base);
- cell(0).draw(pi, x + 5, y - 10);
- Dimension const & dim1 = cell(1).dimension(*pi.base.bv);
- cell(1).draw(pi, x + 5, y + dim1.height());
+ Changer dummy2 = pi.base.changeEnsureMath();
+ Changer dummy = pi.base.changeScript();
Dimension const dim = dimension(*pi.base.bv);
- mathed_draw_deco(pi, x + 1, y - 7, dim.wid - 2, 5, name_);
- drawMarkers(pi, x, y);
+ 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, y - 7, dim.wid, 5, name_);
}
-void InsetMathXArrow::write(WriteStream & os) const
+void InsetMathXArrow::write(TeXMathStream & os) const
{
MathEnsurer ensurer(os);
os << '\\' << name_;
- if (cell(1).size())
+ if (!cell(1).empty())
os << '[' << cell(1) << ']';
os << '{' << cell(0) << '}';
}
}
+static std::map<string, string> latex_to_html_entities = {
+ {"xleftarrow", "←"},
+ {"xrightarrow", "→"},
+ {"xhookleftarrow", "↩"},
+ {"xhookrightarrow", "↪"},
+ {"xLeftarrow", "⇐"},
+ {"xRightarrow", "⇒"},
+ {"xleftrightarrow", "↔"},
+ {"xLeftrightarrow", "⇔"},
+ {"xleftharpoondown", "↽"},
+ {"xleftharpoonup", "↼"},
+ {"xleftrightharpoons", "⇋"},
+ {"xrightharpoondown", "⇁"},
+ {"xrightharpoonup", "⇀"},
+ {"xrightleftharpoons", "⇌"},
+ {"xmapsto", "↦"},
+};
+
+
+static std::map<string, string> latex_to_xml_entities = {
+ {"xleftarrow", "←"},
+ {"xrightarrow", "→"},
+ {"xhookleftarrow", "↩"},
+ {"xhookrightarrow", "↪"},
+ {"xLeftarrow", "⇐"},
+ {"xRightarrow", "⇒"},
+ {"xleftrightarrow", "↔"},
+ {"xLeftrightarrow", "⇔"},
+ {"xleftharpoondown", "↽"},
+ {"xleftharpoonup", "↼"},
+ {"xleftrightharpoons", "⇋"},
+ {"xrightharpoondown", "⇁"},
+ {"xrightharpoonup", "⇀"},
+ {"xrightleftharpoons", "⇌"},
+ {"xmapsto", "↦"},
+};
+
+
+docstring map_latex_to(docstring latex, bool xml = false)
+{
+ auto dict = (xml) ? latex_to_xml_entities : latex_to_html_entities;
+
+ auto mapping = dict.find(to_ascii(latex));
+ if (mapping != dict.end()) {
+ return from_ascii(mapping->second);
+ } else {
+ std::string format = (xml) ? "XML" : "HTML";
+ lyxerr << "mathmlize " << format << " conversion for '" << latex << "' not implemented" << endl;
+ LASSERT(false, return from_ascii(dict["xrightarrow"]));
+ }
+}
+
+
+void InsetMathXArrow::mathmlize(MathMLStream & ms) const
+{
+ docstring arrow = map_latex_to(name_, ms.xmlMode());
+ ms << "<" << from_ascii(ms.namespacedTag("munderover")) << " accent='false' accentunder='false'>"
+ << MTagInline("mo") << arrow << ETagInline("mo")
+ << cell(1) << cell(0)
+ << "</" << from_ascii(ms.namespacedTag("munderover"))<< ">";
+}
+
+
+void InsetMathXArrow::htmlize(HtmlStream & os) const
+{
+ docstring arrow = map_latex_to(name_);
+ 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
{
- features.require("amsmath");
+ 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);
}