mirror of
https://github.com/pocoproject/poco.git
synced 2024-12-13 02:22:57 +01:00
110 lines
2.9 KiB
C++
110 lines
2.9 KiB
C++
//
|
|
// Delegate.h
|
|
//
|
|
// $Id: //poco/Main/Foundation/include/Poco/Delegate.h#5 $
|
|
//
|
|
// Library: Foundation
|
|
// Package: Events
|
|
// Module: Delegate
|
|
//
|
|
// Implementation of the Delegate template.
|
|
//
|
|
// Copyright (c) 2006, Applied Informatics Software Engineering GmbH.
|
|
// and Contributors.
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person or organization
|
|
// obtaining a copy of the software and accompanying documentation covered by
|
|
// this license (the "Software") to use, reproduce, display, distribute,
|
|
// execute, and transmit the Software, and to prepare derivative works of the
|
|
// Software, and to permit third-parties to whom the Software is furnished to
|
|
// do so, all subject to the following:
|
|
//
|
|
// The copyright notices in the Software and this entire statement, including
|
|
// the above license grant, this restriction and the following disclaimer,
|
|
// must be included in all copies of the Software, in whole or in part, and
|
|
// all derivative works of the Software, unless such copies or derivative
|
|
// works are solely in the form of machine-executable object code generated by
|
|
// a source language processor.
|
|
//
|
|
// 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, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
|
// SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
|
// FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
|
// ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
// DEALINGS IN THE SOFTWARE.
|
|
//
|
|
|
|
|
|
#ifndef Foundation_Delegate_INCLUDED
|
|
#define Foundation_Delegate_INCLUDED
|
|
|
|
|
|
#include "Poco/Foundation.h"
|
|
#include "Poco/AbstractDelegate.h"
|
|
#include "Poco/Expire.h"
|
|
|
|
|
|
namespace Poco {
|
|
|
|
|
|
template <class TObj, class TArgs>
|
|
class Delegate: public AbstractDelegate<TArgs>
|
|
{
|
|
public:
|
|
typedef void (TObj::*NotifyMethod)(const void*, TArgs&);
|
|
|
|
Delegate(TObj* obj, NotifyMethod method):
|
|
AbstractDelegate<TArgs>(obj),
|
|
_receiverObject(obj),
|
|
_receiverMethod(method)
|
|
{
|
|
}
|
|
|
|
Delegate(const Delegate& delegate):
|
|
AbstractDelegate<TArgs>(delegate),
|
|
_receiverObject(delegate._receiverObject),
|
|
_receiverMethod(delegate._receiverMethod)
|
|
{
|
|
}
|
|
|
|
~Delegate()
|
|
{
|
|
}
|
|
|
|
Delegate& operator = (const Delegate& delegate)
|
|
{
|
|
if (&delegate != this)
|
|
{
|
|
this->_pTarget = delegate._pTarget;
|
|
this->_receiverObject = delegate._receiverObject;
|
|
this->_receiverMethod = delegate._receiverMethod;
|
|
}
|
|
return *this;
|
|
}
|
|
|
|
bool notify(const void* sender, TArgs& arguments)
|
|
{
|
|
(_receiverObject->*_receiverMethod)(sender, arguments);
|
|
return true; // a "standard" delegate never expires
|
|
}
|
|
|
|
AbstractDelegate<TArgs>* clone() const
|
|
{
|
|
return new Delegate(*this);
|
|
}
|
|
|
|
protected:
|
|
TObj* _receiverObject;
|
|
NotifyMethod _receiverMethod;
|
|
|
|
private:
|
|
Delegate();
|
|
};
|
|
|
|
|
|
} // namespace Poco
|
|
|
|
|
|
#endif
|