dptr.h
1 //------------------------------------------------------------------------------
2 // dptr.h
3 //------------------------------------------------------------------------------
4 //
5 // This library is free software; you can redistribute it and/or
6 // modify it under the terms of the GNU Lesser General Public
7 // License as published by the Free Software Foundation; either
8 // version 2.1 of the License, or (at your option) any later version.
9 //
10 // This library is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 // Lesser General Public License for more details.
14 //
15 // You should have received a copy of the GNU Lesser General Public
16 // License along with this library; if not, write to the Free Software
17 // Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
18 // 02110-1301 USA
19 //
20 //------------------------------------------------------------------------------
21 // Copyright (C) 2015 Braden "Blzut3" Obrzut <admin@maniacsvault.net>
22 //------------------------------------------------------------------------------
23 #ifndef id91044119_93C0_4719_829DE83410DDE660
24 #define id91044119_93C0_4719_829DE83410DDE660
25 
26 #include <QScopedPointer>
27 
31 template<class T> class PrivData;
35 #define DClass template<> class PrivData
36 
53 template<class T>
54 class DPtr : public QScopedPointer<PrivData<T> >
55 {
56 public:
57  DPtr();
58  DPtr(const DPtr &other);
59  const DPtr &operator=(const DPtr &other);
60  ~DPtr();
61 };
62 
66 #define DPointeredNoCopy(cls) \
67  template<> \
68  DPtr<cls>::DPtr() : QScopedPointer<PrivData<cls> >(new PrivData<cls>) {} \
69  template<> \
70  DPtr<cls>::~DPtr() {}
71 
75 #define DPointered(cls) DPointeredNoCopy(cls) \
76  template<> \
77  DPtr<cls>::DPtr(const DPtr<cls> &other) : QScopedPointer<PrivData<cls> >(new PrivData<cls>) \
78  { \
79  *(this->data()) = *(other.data()); \
80  } \
81  template<> \
82  const DPtr<cls> &DPtr<cls>::operator=(const DPtr<cls> &other) \
83  { \
84  if (this->data() != other.data()) \
85  *(this->data()) = *(other.data()); \
86  return *this; \
87  }
88 
89 #endif