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75ba515b18
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@8621 a592a061-630c-0410-9148-cb99ea01b6c8
134 lines
2.8 KiB
C
134 lines
2.8 KiB
C
/**
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* \file math_fracinset.C
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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 Alejandro Aguilar Sierra
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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 "math_fracinset.h"
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#include "math_data.h"
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#include "math_mathmlstream.h"
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#include "textpainter.h"
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#include "LColor.h"
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#include "frontends/Painter.h"
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using std::string;
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using std::max;
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using std::auto_ptr;
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MathFracInset::MathFracInset(bool atop)
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: atop_(atop)
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{}
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auto_ptr<InsetBase> MathFracInset::clone() const
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{
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return auto_ptr<InsetBase>(new MathFracInset(*this));
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}
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MathFracInset * MathFracInset::asFracInset()
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{
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return atop_ ? 0 : this;
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}
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MathFracInset const * MathFracInset::asFracInset() const
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{
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return atop_ ? 0 : this;
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}
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void MathFracInset::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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FracChanger dummy(mi.base);
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cell(0).metrics(mi);
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cell(1).metrics(mi);
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dim.wid = max(cell(0).width(), cell(1).width()) + 2;
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dim.asc = cell(0).height() + 2 + 5;
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dim.des = cell(1).height() + 2 - 5;
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metricsMarkers(dim);
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dim_ = dim;
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}
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void MathFracInset::draw(PainterInfo & pi, int x, int y) const
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{
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setPosCache(pi, x, y);
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int m = x + dim_.wid / 2;
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FracChanger dummy(pi.base);
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cell(0).draw(pi, m - cell(0).width() / 2, y - cell(0).descent() - 2 - 5);
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cell(1).draw(pi, m - cell(1).width() / 2, y + cell(1).ascent() + 2 - 5);
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if (!atop_)
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pi.pain.line(x + 1, y - 5, x + dim_.wid - 2, y - 5, LColor::math);
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drawMarkers(pi, x, y);
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}
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void MathFracInset::metricsT(TextMetricsInfo const & mi, Dimension & dim) const
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{
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cell(0).metricsT(mi, dim);
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cell(1).metricsT(mi, dim);
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dim.wid = max(cell(0).width(), cell(1).width());
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dim.asc = cell(0).height() + 1;
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dim.des = cell(1).height();
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//dim = dim_;
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}
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void MathFracInset::drawT(TextPainter & pain, int x, int y) const
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{
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int m = x + dim_.width() / 2;
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cell(0).drawT(pain, m - cell(0).width() / 2, y - cell(0).descent() - 1);
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cell(1).drawT(pain, m - cell(1).width() / 2, y + cell(1).ascent());
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if (!atop_)
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pain.horizontalLine(x, y, dim_.width());
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}
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void MathFracInset::write(WriteStream & os) const
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{
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if (atop_)
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os << '{' << cell(0) << "\\atop " << cell(1) << '}';
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else // it's \\frac
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MathNestInset::write(os);
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}
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string MathFracInset::name() const
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{
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return atop_ ? "atop" : "frac";
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}
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void MathFracInset::maple(MapleStream & os) const
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{
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os << '(' << cell(0) << ")/(" << cell(1) << ')';
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}
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void MathFracInset::mathematica(MathematicaStream & os) const
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{
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os << '(' << cell(0) << ")/(" << cell(1) << ')';
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}
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void MathFracInset::octave(OctaveStream & os) const
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{
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os << '(' << cell(0) << ")/(" << cell(1) << ')';
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}
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void MathFracInset::mathmlize(MathMLStream & os) const
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{
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os << MTag("mfrac") << cell(0) << cell(1) << ETag("mfrac");
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}
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