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* src/mathed/math_factory.C (createMathInset): handle \phantom, \hphantom and \vphantom * src/mathed/Makefile.am: add math_phantominset.[Ch] * src/mathed/math_phantominset.[Ch]: new phantom inset git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@13680 a592a061-630c-0410-9148-cb99ea01b6c8
169 lines
3.4 KiB
C
169 lines
3.4 KiB
C
/**
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* \file math_phantominset.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 Georg Baum
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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_phantominset.h"
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#include "math_mathmlstream.h"
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#include "math_streamstr.h"
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#include "LColor.h"
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#include "frontends/Painter.h"
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#include "support/std_ostream.h"
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MathPhantomInset::MathPhantomInset(Kind k)
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: MathNestInset(1), kind_(k)
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{}
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std::auto_ptr<InsetBase> MathPhantomInset::doClone() const
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{
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return std::auto_ptr<InsetBase>(new MathPhantomInset(*this));
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}
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void MathPhantomInset::metrics(MetricsInfo & mi, Dimension & dim) const
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{
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cell(0).metrics(mi, dim);
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metricsMarkers(dim);
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dim_ = dim;
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}
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void MathPhantomInset::draw(PainterInfo & pi, int x, int y) const
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{
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static int const arrow_size = 4;
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// We first draw the text and then an arrow
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LColor_color const origcol = pi.base.font.color();
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pi.base.font.setColor(LColor::special);
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cell(0).draw(pi, x + 1, y);
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pi.base.font.setColor(origcol);
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if (kind_ == phantom || kind_ == vphantom) {
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// y1---------
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// / \.
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// y2----- / | \.
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// |
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// |
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// y3----- \ | /
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// \ /
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// y4---------
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// | | |
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// / | \.
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// x1 x2 x3
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int const x2 = x + dim_.wid / 2;
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int const x1 = x2 - arrow_size;
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int const x3 = x2 + arrow_size;
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int const y1 = y - dim_.asc;
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int const y2 = y1 + arrow_size;
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int const y4 = y + dim_.des;
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int const y3 = y4 - arrow_size;
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// top arrow
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pi.pain.line(x2, y1, x1, y2, LColor::added_space);
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pi.pain.line(x2, y1, x3, y2, LColor::added_space);
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// bottom arrow
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pi.pain.line(x2, y4, x1, y3, LColor::added_space);
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pi.pain.line(x2, y4, x3, y3, LColor::added_space);
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// joining line
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pi.pain.line(x2, y1, x2, y4, LColor::added_space);
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}
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if (kind_ == phantom || kind_ == hphantom) {
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// y1---- / \.
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// / \.
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// y2--- <---------------->
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// \ /
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// y3---- \ /
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// | | | |
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// x1 x2 x3 x4
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int const x1 = x;
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int const x2 = x + arrow_size;
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int const x4 = x + dim_.wid;
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int const x3 = x4 - arrow_size;
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int const y2 = y + (dim_.des - dim_.asc) / 2;
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int const y1 = y2 - arrow_size;
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int const y3 = y2 + arrow_size;
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// left arrow
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pi.pain.line(x1, y2, x2, y3, LColor::added_space);
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pi.pain.line(x1, y2, x2, y1, LColor::added_space);
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// right arrow
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pi.pain.line(x4, y2, x3, y3, LColor::added_space);
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pi.pain.line(x4, y2, x3, y1, LColor::added_space);
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// joining line
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pi.pain.line(x1, y2, x4, y2, LColor::added_space);
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}
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drawMarkers(pi, x, y);
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}
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void MathPhantomInset::write(WriteStream & os) const
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{
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switch (kind_) {
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case phantom:
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os << "\\phantom{";
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break;
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case vphantom:
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os << "\\vphantom{";
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break;
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case hphantom:
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os << "\\hphantom{";
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break;
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}
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os << cell(0) << '}';
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}
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void MathPhantomInset::normalize(NormalStream & os) const
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{
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switch (kind_) {
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case phantom:
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os << "[phantom ";
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break;
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case vphantom:
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os << "[vphantom ";
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break;
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case hphantom:
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os << "[hphantom ";
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break;
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}
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os << cell(0) << ']';
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}
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void MathPhantomInset::infoize(std::ostream & os) const
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{
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switch (kind_) {
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case phantom:
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os << "Phantom";
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break;
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case vphantom:
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os << "Vphantom";
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break;
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case hphantom:
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os << "Hphantom";
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break;
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}
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}
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