129 lines
3.9 KiB
C++
129 lines
3.9 KiB
C++
#pragma once
|
|
/****************************************************************************
|
|
Copyright (c) 2008, Radon Labs GmbH
|
|
Copyright (c) 2011-2013,WebJet Business Division,CYOU
|
|
|
|
http://www.genesis-3d.com.cn
|
|
|
|
Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
of this software and associated documentation files (the "Software"), to deal
|
|
in the Software without restriction, including without limitation the rights
|
|
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
copies of the Software, and to permit persons to whom the Software is
|
|
furnished to do so, subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be included in
|
|
all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
THE SOFTWARE.
|
|
****************************************************************************/
|
|
|
|
#include "core/types.h"
|
|
|
|
//------------------------------------------------------------------------------
|
|
namespace Util
|
|
{
|
|
template<class ARGTYPE> class Delegate
|
|
{
|
|
public:
|
|
/// constructor
|
|
Delegate();
|
|
/// invokation operator
|
|
void operator()(ARGTYPE arg) const;
|
|
/// setup a new delegate from a method call
|
|
template<class CLASS, void (CLASS::*METHOD)(ARGTYPE)> static Delegate<ARGTYPE> FromMethod(CLASS* objPtr);
|
|
/// setup a new delegate from a function call
|
|
template<void(*FUNCTION)(ARGTYPE)> static Delegate<ARGTYPE> FromFunction();
|
|
|
|
private:
|
|
/// method pointer typedef
|
|
typedef void (*StubType)(void*, ARGTYPE);
|
|
/// static method-call stub
|
|
template<class CLASS, void(CLASS::*METHOD)(ARGTYPE)> static void MethodStub(void* objPtr, ARGTYPE arg);
|
|
/// static function-call stub
|
|
template<void(*FUNCTION)(ARGTYPE)> static void FunctionStub(void* dummyPtr, ARGTYPE arg);
|
|
|
|
void* objPtr;
|
|
StubType stubPtr;
|
|
};
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
template<class ARGTYPE>
|
|
Delegate<ARGTYPE>::Delegate() :
|
|
objPtr(0),
|
|
stubPtr(0)
|
|
{
|
|
// empty
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
template<class ARGTYPE> void
|
|
Delegate<ARGTYPE>::operator()(ARGTYPE arg) const
|
|
{
|
|
(*this->stubPtr)(this->objPtr, arg);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
template<class ARGTYPE>
|
|
template<class CLASS, void (CLASS::*METHOD)(ARGTYPE)>
|
|
Delegate<ARGTYPE>
|
|
Delegate<ARGTYPE>::FromMethod(CLASS* objPtr_)
|
|
{
|
|
Delegate<ARGTYPE> del;
|
|
del.objPtr = objPtr_;
|
|
del.stubPtr = &MethodStub<CLASS,METHOD>;
|
|
return del;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
template<class ARGTYPE>
|
|
template<void(*FUNCTION)(ARGTYPE)>
|
|
Delegate<ARGTYPE>
|
|
Delegate<ARGTYPE>::FromFunction()
|
|
{
|
|
Delegate<ARGTYPE> del;
|
|
del.objPtr = 0;
|
|
del.stubPtr = &FunctionStub<FUNCTION>;
|
|
return del;
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
template<class ARGTYPE>
|
|
template<class CLASS, void (CLASS::*METHOD)(ARGTYPE)>
|
|
void
|
|
Delegate<ARGTYPE>::MethodStub(void* objPtr_, ARGTYPE arg_)
|
|
{
|
|
CLASS* obj = static_cast<CLASS*>(objPtr_);
|
|
(obj->*METHOD)(arg_);
|
|
}
|
|
|
|
//------------------------------------------------------------------------------
|
|
/**
|
|
*/
|
|
template<class ARGTYPE>
|
|
template<void(*FUNCTION)(ARGTYPE)>
|
|
void
|
|
Delegate<ARGTYPE>::FunctionStub(void* dummyPtr, ARGTYPE arg_)
|
|
{
|
|
(*FUNCTION)(arg_);
|
|
}
|
|
|
|
} // namespace Util
|
|
//------------------------------------------------------------------------------
|