MyGUI  3.0.1
MyGUI_Instance.h
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1 
7 /*
8  This file is part of MyGUI.
9 
10  MyGUI is free software: you can redistribute it and/or modify
11  it under the terms of the GNU Lesser General Public License as published by
12  the Free Software Foundation, either version 3 of the License, or
13  (at your option) any later version.
14 
15  MyGUI is distributed in the hope that it will be useful,
16  but WITHOUT ANY WARRANTY; without even the implied warranty of
17  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18  GNU Lesser General Public License for more details.
19 
20  You should have received a copy of the GNU Lesser General Public License
21  along with MyGUI. If not, see <http://www.gnu.org/licenses/>.
22 */
23 #ifndef __MYGUI_INSTANCE_H__
24 #define __MYGUI_INSTANCE_H__
25 
26 #define MYGUI_INSTANCE_HEADER(type) \
27  private: \
28  static type* msInstance; \
29  bool mIsInitialise; \
30  public: \
31  type();\
32  ~type();\
33  static type& getInstance(); \
34  static type* getInstancePtr();
35 
36 
37 #define MYGUI_INSTANCE_IMPLEMENT(type) \
38  const std::string INSTANCE_TYPE_NAME(#type); \
39  type* type::msInstance = nullptr; \
40  type* type::getInstancePtr() { return msInstance; } \
41  type& type::getInstance() { MYGUI_ASSERT(0 != msInstance, "instance " << INSTANCE_TYPE_NAME << " was not created"); return (*msInstance); } \
42  type::type() : mIsInitialise(false) { MYGUI_ASSERT(0 == msInstance, "instance " << INSTANCE_TYPE_NAME << " is exsist"); msInstance = this; } \
43  type::~type() { msInstance = nullptr; }
44 
45 #endif // __MYGUI_INSTANCE_H__