318 lines
9.8 KiB
C
318 lines
9.8 KiB
C
|
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
|
||
|
|
// Copyright (C) 2010 Winch Gate Property Limited
|
||
|
|
//
|
||
|
|
// This program is free software: you can redistribute it and/or modify
|
||
|
|
// it under the terms of the GNU Affero General Public License as
|
||
|
|
// published by the Free Software Foundation, either version 3 of the
|
||
|
|
// License, or (at your option) any later version.
|
||
|
|
//
|
||
|
|
// This program is distributed in the hope that it will be useful,
|
||
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
// GNU Affero General Public License for more details.
|
||
|
|
//
|
||
|
|
// You should have received a copy of the GNU Affero General Public License
|
||
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>.
|
||
|
|
|
||
|
|
#ifndef NLQT_CALLBACK_H
|
||
|
|
#define NLQT_CALLBACK_H
|
||
|
|
#include <nel/misc/types_nl.h>
|
||
|
|
|
||
|
|
// STL includes
|
||
|
|
|
||
|
|
// NeL includes
|
||
|
|
#include <nel/misc/debug.h>
|
||
|
|
|
||
|
|
// Project includes
|
||
|
|
|
||
|
|
namespace NLQT {
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_TEMPLATE \
|
||
|
|
/** \
|
||
|
|
* \brief NLQT_CALLBACK_ARGS_CLASS \
|
||
|
|
* \date 2009-03-03 18:09GMT \
|
||
|
|
* \author Jan Boon (Kaetemi) \
|
||
|
|
* Awesome callback template \
|
||
|
|
*/ \
|
||
|
|
template<typename TReturn NLQT_CALLBACK_ARGS_TYPENAME> \
|
||
|
|
class NLQT_CALLBACK_ARGS_CLASS \
|
||
|
|
{ \
|
||
|
|
/* Very simple reference counting callback base */ \
|
||
|
|
class CCallbackBase \
|
||
|
|
{ \
|
||
|
|
public: \
|
||
|
|
CCallbackBase() : m_RefCount(0) \
|
||
|
|
{ \
|
||
|
|
\
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
virtual ~CCallbackBase() \
|
||
|
|
{ \
|
||
|
|
nlassert(!m_RefCount); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
void refAdd() \
|
||
|
|
{ \
|
||
|
|
++m_RefCount; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
void refRemove() \
|
||
|
|
{ \
|
||
|
|
--m_RefCount; \
|
||
|
|
if (!m_RefCount) \
|
||
|
|
delete this; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
virtual TReturn callback(NLQT_CALLBACK_ARGS_DECL) = 0; \
|
||
|
|
\
|
||
|
|
virtual bool equals(const CCallbackBase *callbackBase) = 0; \
|
||
|
|
\
|
||
|
|
/* disable copy */ \
|
||
|
|
CCallbackBase(const CCallbackBase &); \
|
||
|
|
CCallbackBase &operator=(const CCallbackBase &); \
|
||
|
|
\
|
||
|
|
private: \
|
||
|
|
uint m_RefCount; \
|
||
|
|
}; \
|
||
|
|
\
|
||
|
|
typedef TReturn TCallbackFunction(NLQT_CALLBACK_ARGS_DECL); \
|
||
|
|
class CCallbackFunction : public CCallbackBase \
|
||
|
|
{ \
|
||
|
|
public: \
|
||
|
|
CCallbackFunction(TCallbackFunction *callbackFunction) : m_CallbackFunction(callbackFunction) \
|
||
|
|
{ \
|
||
|
|
nlassert(m_CallbackFunction); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
virtual ~CCallbackFunction() \
|
||
|
|
{ \
|
||
|
|
m_CallbackFunction = NULL; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
virtual TReturn callback(NLQT_CALLBACK_ARGS_DECL) \
|
||
|
|
{ \
|
||
|
|
return m_CallbackFunction(NLQT_CALLBACK_ARGS_IMPL); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
virtual bool equals(const CCallbackBase *callbackBase) \
|
||
|
|
{ \
|
||
|
|
const CCallbackFunction *callbackFunction = \
|
||
|
|
dynamic_cast<const CCallbackFunction *>(callbackBase); \
|
||
|
|
if (!callbackFunction) return false; \
|
||
|
|
return m_CallbackFunction == callbackFunction->m_CallbackFunction; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
private: \
|
||
|
|
TCallbackFunction *m_CallbackFunction; \
|
||
|
|
}; \
|
||
|
|
\
|
||
|
|
template<typename TClass> \
|
||
|
|
class CCallbackMethod : public CCallbackBase \
|
||
|
|
{ \
|
||
|
|
typedef TReturn (TClass::*TCallbackMethod)(NLQT_CALLBACK_ARGS_DECL); \
|
||
|
|
public: \
|
||
|
|
CCallbackMethod(TClass *callbackObject, TCallbackMethod callbackMethod) : m_CallbackObject(callbackObject), m_CallbackMethod(callbackMethod) \
|
||
|
|
{ \
|
||
|
|
nlassert(m_CallbackObject); \
|
||
|
|
nlassert(m_CallbackMethod); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
virtual ~CCallbackMethod() \
|
||
|
|
{ \
|
||
|
|
m_CallbackObject = NULL; \
|
||
|
|
m_CallbackMethod = NULL; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
virtual TReturn callback(NLQT_CALLBACK_ARGS_DECL) \
|
||
|
|
{ \
|
||
|
|
return (m_CallbackObject->*m_CallbackMethod)(NLQT_CALLBACK_ARGS_IMPL); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
virtual bool equals(const CCallbackBase *callbackBase) \
|
||
|
|
{ \
|
||
|
|
const CCallbackMethod *callbackMethod = \
|
||
|
|
dynamic_cast<const CCallbackMethod *>(callbackBase); \
|
||
|
|
if (!callbackMethod) return false; \
|
||
|
|
return m_CallbackObject == callbackMethod->m_CallbackObject \
|
||
|
|
&& m_CallbackMethod == callbackMethod->m_CallbackMethod; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
private: \
|
||
|
|
TClass *m_CallbackObject; \
|
||
|
|
TCallbackMethod m_CallbackMethod; \
|
||
|
|
}; \
|
||
|
|
\
|
||
|
|
public: \
|
||
|
|
CCallback() : m_CallbackBase(NULL) \
|
||
|
|
{ \
|
||
|
|
\
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
CCallback(TCallbackFunction *callbackFunction) : m_CallbackBase(new CCallbackFunction(callbackFunction)) \
|
||
|
|
{ \
|
||
|
|
nlassert(m_CallbackBase); \
|
||
|
|
m_CallbackBase->refAdd(); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
template<typename TClass> \
|
||
|
|
CCallback(TClass *callbackObject, TReturn (TClass::*callbackMethod)(NLQT_CALLBACK_ARGS_DECL)) : m_CallbackBase(new CCallbackMethod<TClass>(callbackObject, callbackMethod)) \
|
||
|
|
{ \
|
||
|
|
nlassert(m_CallbackBase); \
|
||
|
|
m_CallbackBase->refAdd(); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
CCallback(const CCallback &callback) \
|
||
|
|
{ \
|
||
|
|
m_CallbackBase = callback.m_CallbackBase; \
|
||
|
|
if (m_CallbackBase) \
|
||
|
|
m_CallbackBase->refAdd(); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
CCallback &operator=(const CCallback &callback) \
|
||
|
|
{ \
|
||
|
|
if (m_CallbackBase != callback.m_CallbackBase) \
|
||
|
|
{ \
|
||
|
|
if (m_CallbackBase) \
|
||
|
|
m_CallbackBase->refRemove(); \
|
||
|
|
m_CallbackBase = callback.m_CallbackBase; \
|
||
|
|
if (m_CallbackBase) \
|
||
|
|
m_CallbackBase->refAdd(); \
|
||
|
|
} \
|
||
|
|
return *this; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
~CCallback() \
|
||
|
|
{ \
|
||
|
|
if (m_CallbackBase) \
|
||
|
|
{ \
|
||
|
|
m_CallbackBase->refRemove(); \
|
||
|
|
m_CallbackBase = NULL; \
|
||
|
|
} \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
TReturn callback(NLQT_CALLBACK_ARGS_DECL) \
|
||
|
|
{ \
|
||
|
|
nlassert(m_CallbackBase); \
|
||
|
|
return m_CallbackBase->callback(NLQT_CALLBACK_ARGS_IMPL); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
TReturn operator()(NLQT_CALLBACK_ARGS_DECL) \
|
||
|
|
{ \
|
||
|
|
nlassert(m_CallbackBase); \
|
||
|
|
return m_CallbackBase->callback(NLQT_CALLBACK_ARGS_IMPL); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
bool valid() const \
|
||
|
|
{ \
|
||
|
|
return m_CallbackBase != NULL; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
operator bool() const \
|
||
|
|
{ \
|
||
|
|
return m_CallbackBase != NULL; \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
bool operator==(const CCallback &callback) \
|
||
|
|
{ \
|
||
|
|
return m_CallbackBase->equals(callback.m_CallbackBase); \
|
||
|
|
} \
|
||
|
|
\
|
||
|
|
private: \
|
||
|
|
CCallbackBase *m_CallbackBase; \
|
||
|
|
\
|
||
|
|
}; /* class CCallback */ \
|
||
|
|
|
||
|
|
template<typename TReturn, typename TArgsA = void, typename TArgsB = void, typename TArgsC = void, typename TArgsD = void, typename TArgsE = void, typename TArgsF = void, typename TArgsG = void, typename TDummy = void>
|
||
|
|
class CCallback;
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_ARGS_CLASS CCallback<TReturn, void, void, void, void, void, void, void, void>
|
||
|
|
#define NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#define NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#define NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
NLQT_CALLBACK_TEMPLATE
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASS
|
||
|
|
#undef NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#undef NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_ARGS_CLASS CCallback<TReturn, TArgsA, void, void, void, void, void, void, void>
|
||
|
|
#define NLQT_CALLBACK_ARGS_TYPENAME , typename TArgsA
|
||
|
|
#define NLQT_CALLBACK_ARGS_DECL TArgsA argsA
|
||
|
|
#define NLQT_CALLBACK_ARGS_IMPL argsA
|
||
|
|
NLQT_CALLBACK_TEMPLATE
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASS
|
||
|
|
#undef NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#undef NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_ARGS_CLASS CCallback<TReturn, TArgsA, TArgsB, void, void, void, void, void, void>
|
||
|
|
#define NLQT_CALLBACK_ARGS_TYPENAME , typename TArgsA, typename TArgsB
|
||
|
|
#define NLQT_CALLBACK_ARGS_DECL TArgsA argsA, TArgsB argsB
|
||
|
|
#define NLQT_CALLBACK_ARGS_IMPL argsA, argsB
|
||
|
|
NLQT_CALLBACK_TEMPLATE
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASS
|
||
|
|
#undef NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#undef NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_ARGS_CLASS CCallback<TReturn, TArgsA, TArgsB, TArgsC, void, void, void, void, void>
|
||
|
|
#define NLQT_CALLBACK_ARGS_TYPENAME , typename TArgsA, typename TArgsB, typename TArgsC
|
||
|
|
#define NLQT_CALLBACK_ARGS_DECL TArgsA argsA, TArgsB argsB, TArgsC argsC
|
||
|
|
#define NLQT_CALLBACK_ARGS_IMPL argsA, argsB, argsC
|
||
|
|
NLQT_CALLBACK_TEMPLATE
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASS
|
||
|
|
#undef NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#undef NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_ARGS_CLASS CCallback<TReturn, TArgsA, TArgsB, TArgsC, TArgsD, void, void, void, void>
|
||
|
|
#define NLQT_CALLBACK_ARGS_TYPENAME , typename TArgsA, typename TArgsB, typename TArgsC, typename TArgsD
|
||
|
|
#define NLQT_CALLBACK_ARGS_DECL TArgsA argsA, TArgsB argsB, TArgsC argsC, TArgsD argsD
|
||
|
|
#define NLQT_CALLBACK_ARGS_IMPL argsA, argsB, argsC, argsD
|
||
|
|
NLQT_CALLBACK_TEMPLATE
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASS
|
||
|
|
#undef NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#undef NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_ARGS_CLASS CCallback<TReturn, TArgsA, TArgsB, TArgsC, TArgsD, TArgsE, void, void, void>
|
||
|
|
#define NLQT_CALLBACK_ARGS_TYPENAME , typename TArgsA, typename TArgsB, typename TArgsC, typename TArgsD, typename TArgsE
|
||
|
|
#define NLQT_CALLBACK_ARGS_DECL TArgsA argsA, TArgsB argsB, TArgsC argsC, TArgsD argsD, TArgsE argsE
|
||
|
|
#define NLQT_CALLBACK_ARGS_IMPL argsA, argsB, argsC, argsD, argsE
|
||
|
|
NLQT_CALLBACK_TEMPLATE
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASS
|
||
|
|
#undef NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#undef NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_ARGS_CLASS CCallback<TReturn, TArgsA, TArgsB, TArgsC, TArgsD, TArgsE, TArgsF, void, void>
|
||
|
|
#define NLQT_CALLBACK_ARGS_TYPENAME , typename TArgsA, typename TArgsB, typename TArgsC, typename TArgsD, typename TArgsE, typename TArgsF
|
||
|
|
#define NLQT_CALLBACK_ARGS_DECL TArgsA argsA, TArgsB argsB, TArgsC argsC, TArgsD argsD, TArgsE argsE, TArgsF argsF
|
||
|
|
#define NLQT_CALLBACK_ARGS_IMPL argsA, argsB, argsC, argsD, argsE, argsF
|
||
|
|
NLQT_CALLBACK_TEMPLATE
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASS
|
||
|
|
#undef NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#undef NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
|
||
|
|
#define NLQT_CALLBACK_ARGS_CLASS CCallback<TReturn, TArgsA, TArgsB, TArgsC, TArgsD, TArgsE, TArgsF, TArgsG, void>
|
||
|
|
#define NLQT_CALLBACK_ARGS_TYPENAME , typename TArgsA, typename TArgsB, typename TArgsC, typename TArgsD, typename TArgsE, typename TArgsF, typename TArgsG
|
||
|
|
#define NLQT_CALLBACK_ARGS_DECL TArgsA argsA, TArgsB argsB, TArgsC argsC, TArgsD argsD, TArgsE argsE, TArgsF argsF, TArgsG argsG
|
||
|
|
#define NLQT_CALLBACK_ARGS_IMPL argsA, argsB, argsC, argsD, argsE, argsF, argsG
|
||
|
|
NLQT_CALLBACK_TEMPLATE
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASS
|
||
|
|
#undef NLQT_CALLBACK_ARGS_TYPENAME
|
||
|
|
#undef NLQT_CALLBACK_ARGS_DECL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_IMPL
|
||
|
|
#undef NLQT_CALLBACK_ARGS_CLASSNAME
|
||
|
|
|
||
|
|
#undef NLQT_CALLBACK_TEMPLATE
|
||
|
|
|
||
|
|
typedef CCallback<void> CEmptyCallback;
|
||
|
|
|
||
|
|
} /* namespace NLQT */
|
||
|
|
|
||
|
|
#endif /* #ifndef NLQT_CALLBACK_H */
|
||
|
|
|
||
|
|
/* end of file */
|