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 MathAtom::MathAtom()
  28         : nucleus_(0)
  29 {}
  30
  31
  32 MathAtom::MathAtom(MathInset * p)
  33         : nucleus_(p)
  34 {}
  35
  36
  37 MathAtom::MathAtom(MathAtom const & p)
  38         : nucleus_(p.nucleus_ ? p.nucleus_->clone() : 0)
  39 {}
  40
  41
  42 void MathAtom::operator=(MathAtom const & p)
  43 {
  44         if (&p == this)
  45                 return;
  46         MathAtom tmp(p);
  47         std::swap(tmp.nucleus_, nucleus_);
  48 }
  49
  50
  51 MathAtom::~MathAtom()
  52 {
  53         delete nucleus_;
  54 }
  55
  56
  57 void MathAtom::reset(MathInset * p)
  58 {
  59         if (p == nucleus_)
  60                 return;
  61         delete nucleus_;
  62         nucleus_ = p;
  63 }
  64
  65
  66 MathInset * MathAtom::nucleus() const
  67 {
  68         lyx::Assert(nucleus_);
  69         return nucleus_;
  70 }
  71
  72
  73 MathInset * MathAtom::operator->() const
  74 {
  75         return nucleus();
  76 }