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https://git.lyx.org/repos/lyx.git
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fe87869cb7
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@4289 a592a061-630c-0410-9148-cb99ea01b6c8
109 lines
2.2 KiB
C
109 lines
2.2 KiB
C
#ifdef __GNUG__
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#pragma implementation
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#endif
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#include "math_fracinset.h"
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#include "math_support.h"
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#include "frontends/Painter.h"
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#include "math_mathmlstream.h"
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#include "textpainter.h"
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using std::max;
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MathFracInset::MathFracInset(bool atop)
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: atop_(atop)
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{}
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MathInset * MathFracInset::clone() const
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{
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return 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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void MathFracInset::metrics(MathMetricsInfo & mi) const
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{
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MathFracChanger dummy(mi.base);
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xcell(0).metrics(mi);
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xcell(1).metrics(mi);
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width_ = max(xcell(0).width(), xcell(1).width()) + 2;
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ascent_ = xcell(0).height() + 2 + 5;
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descent_ = xcell(1).height() + 2 - 5;
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}
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void MathFracInset::draw(MathPainterInfo & pi, int x, int y) const
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{
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int m = x + width() / 2;
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MathFracChanger dummy(pi.base);
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xcell(0).draw(pi, m - xcell(0).width() / 2, y - xcell(0).descent() - 2 - 5);
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xcell(1).draw(pi, m - xcell(1).width() / 2, y + xcell(1).ascent() + 2 - 5);
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if (!atop_)
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pi.pain.line(x, y - 5, x + width(), y - 5, LColor::math);
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}
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void MathFracInset::metricsT(TextMetricsInfo const & mi) const
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{
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xcell(0).metricsT(mi);
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xcell(1).metricsT(mi);
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width_ = max(xcell(0).width(), xcell(1).width());
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ascent_ = xcell(0).height() + 1;
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descent_ = xcell(1).height();
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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 + width() / 2;
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xcell(0).drawT(pain, m - xcell(0).width() / 2, y - xcell(0).descent() - 1);
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xcell(1).drawT(pain, m - xcell(1).width() / 2, y + xcell(1).ascent());
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if (!atop_)
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pain.horizontalLine(x, y, 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
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os << "\\frac{" << cell(0) << "}{" << cell(1) << '}';
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}
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void MathFracInset::normalize(NormalStream & os) const
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{
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if (atop_)
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os << "[atop ";
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else
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os << "[frac ";
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os << cell(0) << ' ' << cell(1) << ']';
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}
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void MathFracInset::maplize(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::octavize(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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