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 #include <config.h>
  16
  17 #ifdef __GNUG__
  18 #pragma implementation
  19 #endif
  20
  21 #include "math_atom.h"
  22 #include "math_inset.h"
  23 #include "support/LAssert.h"
  24
  25 #include <utility>
  26
  27
  28 using std::swap;
  29
  30
  31 MathAtom::MathAtom()
  32         : nucleus_(0)
  33 {}
  34
  35
  36 MathAtom::MathAtom(MathInset * p)
  37         : nucleus_(p)
  38 {}
  39
  40
  41 MathAtom::MathAtom(MathAtom const & p)
  42         : nucleus_(p.nucleus_ ? p.nucleus_->clone() : 0)
  43 {}
  44
  45
  46 void MathAtom::operator=(MathAtom const & p)
  47 {
  48         if (&p == this)
  49                 return;
  50         MathAtom tmp(p);
  51         swap(tmp.nucleus_, nucleus_);
  52 }
  53
  54
  55 MathAtom::~MathAtom()
  56 {
  57         delete nucleus_;
  58 }
  59
  60
  61 void MathAtom::reset(MathInset * p)
  62 {
  63         if (p == nucleus_)
  64                 return;
  65         delete nucleus_;
  66         nucleus_ = p;
  67 }
  68
  69
  70 MathInset * MathAtom::nucleus() const
  71 {
  72         lyx::Assert(nucleus_);
  73         return nucleus_;
  74 }
  75
  76
  77 MathInset * MathAtom::operator->() const
  78 {
  79         return nucleus();
  80 }