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b2b8733096
This requires to change many docstrings into std::strings. The logic behind that
is that they represent a fixed set of math fonts, and therefore “string” means
here “poor man's enum” rather than text (this is consistent with MetricsBase).
Profiling of scrolling inside a document over macro-instensive areas:
Before the patch:
44,1% BufferView::updateMetrics()
-> 34,8% InsetMathHull::metrics()
-> 9,8% FontSetChanger::FontSetChanger()
28,4% BufferView::draw()
After the patch:
35,3% BufferView::updateMetrics()
-> 27,2% InsetMathHull::metrics
-> 0,4% FontSetChanger::FontSetChanger()
47,5% BufferView::draw()
FontSetChanger::FontSetChanger() is made 41x less expensive (with reference
BV::draw()) just by removing this conversion. The remaining 0,4% could be
squished by replacing the strings with a proper enum, but this is premature. Of
course, this only treats the symptoms: there is no good reason that this
function is called 45500 times over the time of 40 repaints.
114 lines
2.5 KiB
C++
114 lines
2.5 KiB
C++
/**
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* \file InsetMathEnsureMath.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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* \author Enrico Forestieri
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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 "InsetMathEnsureMath.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 <ostream>
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namespace lyx {
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InsetMathEnsureMath::InsetMathEnsureMath(Buffer * buf)
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: InsetMathNest(buf, 1)
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{}
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Inset * InsetMathEnsureMath::clone() const
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{
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return new InsetMathEnsureMath(*this);
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}
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void InsetMathEnsureMath::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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bool really_change_font = isTextFont(mi.base.fontname);
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Changer dummy = mi.base.changeFontSet("mathnormal", really_change_font);
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cell(0).metrics(mi, dim);
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metricsMarkers(dim);
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}
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void InsetMathEnsureMath::draw(PainterInfo & pi, int x, int y) const
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{
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bool really_change_font = isTextFont(pi.base.fontname);
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Changer dummy = pi.base.changeFontSet("mathnormal", really_change_font);
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cell(0).draw(pi, x, y);
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drawMarkers(pi, x, y);
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}
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void InsetMathEnsureMath::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
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{
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cell(0).metricsT(mi, dim);
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}
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void InsetMathEnsureMath::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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void InsetMathEnsureMath::write(WriteStream & os) const
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{
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ModeSpecifier specifier(os, MATH_MODE);
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os << "\\ensuremath{" << cell(0) << "}";
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}
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void InsetMathEnsureMath::mathmlize(MathStream & os) const
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{
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SetMode mathmode(os, false);
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os << MTag("mstyle", "class='math'")
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<< cell(0)
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<< ETag("mstyle");
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}
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void InsetMathEnsureMath::htmlize(HtmlStream & os) const
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{
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SetHTMLMode mathmode(os, false);
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os << MTag("span", "class='math'")
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<< cell(0)
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<< ETag("span");
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}
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void InsetMathEnsureMath::infoize(odocstream & os) const
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{
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os << "EnsureMath";
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}
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void InsetMathEnsureMath::validate(LaTeXFeatures & features) const
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{
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// FIXME XHTML
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// It'd be better to be able to get this from an InsetLayout, but at present
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// InsetLayouts do not seem really to work for things that aren't InsetTexts.
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if (features.runparams().math_flavor == OutputParams::MathAsMathML)
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features.addCSSSnippet("mstyle.math { font-style: italic; }");
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else if (features.runparams().math_flavor == OutputParams::MathAsHTML)
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features.addCSSSnippet("span.mathbox { font-style: italic; }");
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InsetMathNest::validate(features);
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}
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} // namespace lyx
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