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240 lines
6.3 KiB
C++
240 lines
6.3 KiB
C++
/**
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* \file InsetMathFont.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 "InsetMathFont.h"
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#include "LaTeXFeatures.h"
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#include "MathData.h"
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#include "MathStream.h"
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#include "MathParser.h"
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#include "MetricsInfo.h"
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#include "support/gettext.h"
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#include "support/lassert.h"
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#include "support/lstrings.h"
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#include <ostream>
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using namespace lyx::support;
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namespace lyx {
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InsetMathFont::InsetMathFont(Buffer * buf, latexkeys const * key)
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: InsetMathNest(buf, 1), key_(key)
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{}
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Inset * InsetMathFont::clone() const
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{
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return new InsetMathFont(*this);
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}
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std::string InsetMathFont::font() const
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{
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LASSERT(isAscii(key_->name), return "mathnormal");
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return to_ascii(key_->name);
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}
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InsetMath::mode_type InsetMathFont::currentMode() const
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{
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if (key_->extra == "mathmode")
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return MATH_MODE;
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if (key_->extra == "textmode")
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return TEXT_MODE;
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return UNDECIDED_MODE;
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}
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bool InsetMathFont::lockedMode() const
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{
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return key_->extra == "forcetext";
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}
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void InsetMathFont::write(TeXMathStream & os) const
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{
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// Close the mode changing command inserted during export if
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// we are going to output another mode changing command that
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// actually doesn't change mode. This avoids exporting things
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// such as \ensuremath{a\mathit{b}} or \textit{a\text{b}} and
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// produce instead \ensuremath{a}\mathit{b} and \textit{a}\text{b}.
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if (os.pendingBrace()
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&& ((currentMode() == TEXT_MODE && os.textMode())
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|| (currentMode() == MATH_MODE && !os.textMode()))) {
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os.os() << '}';
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os.pendingBrace(false);
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os.textMode(!os.textMode());
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}
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InsetMathNest::write(os);
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}
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void InsetMathFont::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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Changer dummy = mi.base.changeFontSet(font());
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cell(0).metrics(mi, dim);
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}
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void InsetMathFont::draw(PainterInfo & pi, int x, int y) const
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{
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Changer dummy = pi.base.changeFontSet(font());
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cell(0).draw(pi, x, y);
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}
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void InsetMathFont::metricsT(TextMetricsInfo const & mi, Dimension &) const
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{
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// FIXME: BROKEN!
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Dimension dim;
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cell(0).metricsT(mi, dim);
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}
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void InsetMathFont::drawT(TextPainter & pain, int x, int y) const
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{
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cell(0).drawT(pain, x, y);
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}
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docstring InsetMathFont::name() const
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{
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return key_->name;
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}
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void InsetMathFont::validate(LaTeXFeatures & features) const
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{
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InsetMathNest::validate(features);
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std::string fontname = font();
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if (features.runparams().isLaTeX()) {
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// Make sure amssymb is put in preamble if Blackboard Bold or
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// Fraktur used:
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if (fontname == "mathfrak" || fontname == "mathbb")
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features.require("amssymb");
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if (fontname == "text" || fontname == "textnormal"
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|| (fontname.length() == 6 && fontname.substr(0, 4) == "text"))
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features.require("amstext");
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if (fontname == "mathscr")
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features.require("mathrsfs");
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if (fontname == "textipa")
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features.require("tipa");
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if (fontname == "ce" || fontname == "cf")
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features.require("mhchem");
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if (fontname == "mathds")
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features.require("dsfont");
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} else if (features.runparams().math_flavor == OutputParams::MathAsHTML) {
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features.addCSSSnippet(
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"span.normal{font: normal normal normal inherit serif;}\n"
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"span.fraktur{font: normal normal normal inherit cursive;}\n"
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"span.bold{font: normal normal bold inherit serif;}\n"
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"span.script{font: normal normal normal inherit cursive;}\n"
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"span.italic{font: italic normal normal inherit serif;}\n"
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"span.sans{font: normal normal normal inherit sans-serif;}\n"
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"span.monospace{font: normal normal normal inherit monospace;}\n"
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"span.noun{font: normal small-caps normal inherit normal;}");
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}
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}
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// The fonts we want to support are listed in lib/symbols
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void InsetMathFont::htmlize(HtmlStream & os) const
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{
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// FIXME These are not quite right, because they do not nest
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// correctly. A proper fix would presumably involve tracking
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// the fonts already in effect.
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std::string variant;
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docstring const & tag = key_->name;
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if (tag == "mathnormal" || tag == "mathrm"
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|| tag == "text" || tag == "textnormal"
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|| tag == "textrm" || tag == "textup"
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|| tag == "textmd")
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variant = "normal";
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else if (tag == "frak" || tag == "mathfrak")
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variant = "fraktur";
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else if (tag == "mathbf" || tag == "textbf")
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variant = "bold";
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else if (tag == "mathbb" || tag == "mathbbm"
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|| tag == "mathds")
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variant = "double-struck";
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else if (tag == "mathcal")
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variant = "script";
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else if (tag == "mathit" || tag == "textsl"
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|| tag == "emph" || tag == "textit")
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variant = "italic";
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else if (tag == "mathsf" || tag == "textsf")
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variant = "sans";
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else if (tag == "mathtt" || tag == "texttt")
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variant = "monospace";
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else if (tag == "textipa" || tag == "textsc" || tag == "noun")
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variant = "noun";
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docstring const beg = (tag.size() < 4) ? from_ascii("") : tag.substr(0, 4);
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if (!variant.empty()) {
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os << MTag("span", "class='" + variant + "'")
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<< cell(0)
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<< ETag("span");
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} else
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os << cell(0);
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}
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// The fonts we want to support are listed in lib/symbols
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void InsetMathFont::mathmlize(MathMLStream & ms) const
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{
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// FIXME These are not quite right, because they do not nest
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// correctly. A proper fix would presumably involve tracking
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// the fonts already in effect.
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std::string variant;
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docstring const & tag = key_->name;
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if (tag == "mathnormal" || tag == "mathrm"
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|| tag == "text" || tag == "textnormal"
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|| tag == "textrm" || tag == "textup"
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|| tag == "textmd")
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variant = "normal";
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else if (tag == "frak" || tag == "mathfrak")
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variant = "fraktur";
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else if (tag == "mathbf" || tag == "textbf")
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variant = "bold";
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else if (tag == "mathbb" || tag == "mathbbm"
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|| tag == "mathds")
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variant = "double-struck";
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else if (tag == "mathcal")
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variant = "script";
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else if (tag == "mathit" || tag == "textsl"
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|| tag == "emph" || tag == "textit")
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variant = "italic";
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else if (tag == "mathsf" || tag == "textsf")
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variant = "sans-serif";
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else if (tag == "mathtt" || tag == "texttt")
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variant = "monospace";
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// no support at present for textipa, textsc, noun
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if (!variant.empty())
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ms << MTag("mstyle", "mathvariant='" + variant + "'")
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<< cell(0)
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<< ETag("mstyle");
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else
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ms << cell(0);
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}
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void InsetMathFont::infoize(odocstream & os) const
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{
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os << bformat(_("Font: %1$s"), key_->name);
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}
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} // namespace lyx
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