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/*
* This source file is part of MyGUI. For the latest info, see http://mygui.info/
* Distributed under the MIT License
* (See accompanying file COPYING.MIT or copy at http://opensource.org/licenses/MIT)
*/
#ifndef MYGUI_SINGLETON_H_
#define MYGUI_SINGLETON_H_
#include "MyGUI_Diagnostic.h"
namespace MyGUI
{
#if MYGUI_COMPILER == MYGUI_COMPILER_MSVC || MYGUI_PLATFORM == MYGUI_PLATFORM_APPLE
template <class T>
class Singleton
#else
template <class T>
class MYGUI_EXPORT Singleton
#endif
{
public:
typedef Singleton<T> Base;
Singleton()
{
MYGUI_ASSERT(nullptr == msInstance, "Singleton instance " << getClassTypeName() << " already exsist");
msInstance = static_cast<T*>(this);
}
virtual ~Singleton()
{
MYGUI_ASSERT(nullptr != msInstance, "Destroying Singleton instance " << getClassTypeName() << " before constructing it.");
msInstance = nullptr;
}
static T& getInstance()
{
MYGUI_ASSERT(nullptr != getInstancePtr(), "Singleton instance " << getClassTypeName() << " was not created");
return (*getInstancePtr());
}
static T* getInstancePtr()
{
return msInstance;
}
static const char* getClassTypeName()
{
return mClassTypeName;
}
private:
static T* msInstance;
static const char* mClassTypeName;
};
} // namespace MyGUI
#endif // MYGUI_SINGLETON_H_
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