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3b3c072df0
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7668 a592a061-630c-0410-9148-cb99ea01b6c8
87 lines
1.8 KiB
C
87 lines
1.8 KiB
C
/**
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* \file math_undersetinset.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 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_undersetinset.h"
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#include "math_mathmlstream.h"
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using std::max;
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using std::auto_ptr;
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auto_ptr<InsetBase> MathUndersetInset::clone() const
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{
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return auto_ptr<InsetBase>(new MathUndersetInset(*this));
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}
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void MathUndersetInset::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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cell(1).metrics(mi);
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FracChanger dummy(mi.base);
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cell(0).metrics(mi);
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dim_.wid = max(cell(0).width(), cell(1).width()) + 4;
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dim_.asc = cell(1).ascent();
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dim_.des = cell(1).descent() + cell(0).height() + 4;
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dim = dim_;
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}
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void MathUndersetInset::draw(PainterInfo & pi, int x, int y) const
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{
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int m = x + pi.width / 2;
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int yo = y + cell(1).descent() + cell(0).ascent() + 1;
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cell(1).draw(pi, m - cell(1).width() / 2, y);
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FracChanger dummy(pi.base);
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cell(0).draw(pi, m - cell(0).width() / 2, yo);
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}
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bool MathUndersetInset::idxFirst(idx_type & i, pos_type & pos) const
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{
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i = 1;
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pos = 0;
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return true;
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}
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bool MathUndersetInset::idxLast(idx_type & i, pos_type & pos) const
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{
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i = 1;
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pos = cell(i).size();
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return true;
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}
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bool MathUndersetInset::idxUpDown(idx_type & idx, pos_type & pos, bool up,
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int targetx) const
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{
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idx_type target = up; // up ? 1 : 0, since upper cell has idx 1
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if (idx == target)
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return false;
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idx = target;
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pos = cell(idx).x2pos(targetx);
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return true;
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}
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void MathUndersetInset::write(WriteStream & os) const
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{
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os << "\\underset{" << cell(0) << "}{" << cell(1) << '}';
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}
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void MathUndersetInset::normalize(NormalStream & os) const
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{
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os << "[underset " << cell(0) << ' ' << cell(1) << ']';
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}
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