src/mathed/math_atom.C

   1 /*
   2  *  File:        math_atom.C
   3  *  Purpose:     Wrapper for MathInset *
   4  *  Author:      André Pönitz
   5  *  Created:     July 2001
   6  *
   7  *  Copyright: 2001 The LyX team
   8  *
   9  *   Version: 1.2.0
  10  *
  11  *   You are free to use and modify this code under the terms of
  12  *   the GNU General Public Licence version 2 or later.
  13  */
  14
  15 #ifdef __GNUG__
  16 #pragma implementation
  17 #endif
  18
  19 #include "math_atom.h"
  20 #include "math_inset.h"
  21 #include "support/LAssert.h"
  22
  23 #include <utility>
  24
  25 MathAtom::MathAtom()
  26         : nucleus_(0)
  27 {}
  28
  29
  30 MathAtom::MathAtom(MathInset * p)
  31         : nucleus_(p)
  32 {}
  33
  34
  35 MathAtom::MathAtom(MathAtom const & p)
  36         : nucleus_(p.nucleus_ ? p.nucleus_->clone() : 0)
  37 {}
  38
  39
  40 void MathAtom::operator=(MathAtom const & p)
  41 {
  42         if (&p == this)
  43                 return;
  44         MathAtom tmp(p);
  45         std::swap(tmp.nucleus_, nucleus_);
  46 }
  47
  48
  49 MathAtom::~MathAtom()
  50 {
  51         delete nucleus_;
  52 }
  53
  54
  55 void MathAtom::reset(MathInset * p)
  56 {
  57         if (p == nucleus_)
  58                 return;
  59         delete nucleus_;
  60         nucleus_ = p;
  61 }
  62
  63
  64 MathInset * MathAtom::nucleus() const
  65 {
  66         lyx::Assert(nucleus_);
  67         return nucleus_;
  68 }
  69
  70
  71 MathInset * MathAtom::operator->() const
  72 {
  73         return nucleus();
  74 }