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cd03e2b7db
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@7751 a592a061-630c-0410-9148-cb99ea01b6c8
134 lines
2.6 KiB
C
134 lines
2.6 KiB
C
/**
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* \file lyxgluelength.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 Lars Gullik Bjønnes
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* \author Matthias Ettrich
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* \author John Levon
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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 "lyxgluelength.h"
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#include "lengthcommon.h"
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#include "support/std_sstream.h"
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using std::ostringstream;
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LyXGlueLength::LyXGlueLength(LyXLength const & len)
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: len_(len)
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{}
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LyXGlueLength::LyXGlueLength(LyXLength const & len, LyXLength const & plus,
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LyXLength const & minus)
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: len_(len), plus_(plus), minus_(minus)
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{}
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LyXGlueLength::LyXGlueLength(string const & data)
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{
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isValidGlueLength(data, this);
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}
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string const LyXGlueLength::asString() const
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{
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ostringstream buffer;
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buffer << len_.value();
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if (plus_.zero() && minus_.zero()) {
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buffer << unit_name[len_.unit()];
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return buffer.str();
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}
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// just len and plus
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if (minus_.zero()) {
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if (len_.unit() != plus_.unit())
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buffer << unit_name[len_.unit()];
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buffer << '+' << plus_.value();
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buffer << unit_name[plus_.unit()];
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return buffer.str();
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}
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// just len and minus
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if (plus_.zero()) {
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if (len_.unit() != minus_.unit())
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buffer << unit_name[len_.unit()];
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buffer << '-' << minus_.value();
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buffer << unit_name[minus_.unit()];
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return buffer.str();
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}
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// ok, len, plus AND minus
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// len+-
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if (minus_ == plus_) {
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if (len_.unit() != minus_.unit())
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buffer << unit_name[len_.unit()];
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buffer << "+-" << minus_.value();
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buffer << unit_name[minus_.unit()];
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return buffer.str();
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}
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// this is so rare a case, why bother minimising units ?
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buffer << unit_name[len_.unit()];
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buffer << '+' << plus_.value() << unit_name[plus_.unit()];
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buffer << '-' << minus_.value() << unit_name[minus_.unit()];
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return buffer.str();
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}
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string const LyXGlueLength::asLatexString() const
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{
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ostringstream buffer;
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buffer << len_.value() << unit_name[len_.unit()];
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if (!plus_.zero())
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buffer << " plus " << plus_.value() << unit_name[plus_.unit()];
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if (!minus_.zero())
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buffer << " minus " << minus_.value() << unit_name[minus_.unit()];
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return buffer.str();
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}
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LyXLength const & LyXGlueLength::len() const
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{
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return len_;
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}
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LyXLength const & LyXGlueLength::plus() const
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{
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return plus_;
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}
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LyXLength const & LyXGlueLength::minus() const
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{
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return minus_;
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}
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bool operator==(LyXGlueLength const & l1, LyXGlueLength const & l2)
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{
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return l1.len() == l2.len()
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&& l1.plus() == l2.plus()
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&& l1.minus() == l2.minus();
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}
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bool operator!=(LyXGlueLength const & l1, LyXGlueLength const & l2)
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{
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return !(l1 == l2);
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}
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