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/*
Copyright (C) 2005-2007 Feeling Software Inc.
Portions of the code are:
Copyright (C) 2005-2007 Sony Computer Entertainment America
MIT License: http://www.opensource.org/licenses/mit-license.php
*/
/*
This file was taken off the Protect project on 26-09-2005
*/
#ifndef _FU_FUNCTOR_H_
#define _FU_FUNCTOR_H_
/**
A functor with no arguments.
@ingroup FUtils
*/
template<class ReturnType>
class IFunctor0
{
public:
/** Destructor. */
virtual ~IFunctor0() {}
/** Calls the functor.
@return Implementation-dependant. */
virtual ReturnType operator()() const = 0;
/** Checks whether this functor points towards the given member function.
@param object The object which holds the member function.
@param function The member function.
@return Whether this functor points towards the given member function. */
virtual bool Compare(void* object, void* function) const = 0;
/** Returns a copy of this functor */
virtual IFunctor0<ReturnType>* Copy() const = 0;
};
/**
A functor with no arguments.
@ingroup FUtils
*/
template<class Class, class ReturnType>
class FUFunctor0 : public IFunctor0<ReturnType>
{
private:
Class* m_pObject;
ReturnType (Class::*m_pFunction) ();
public:
/** Constructor.
@param object An object.
@param function A member function of this object. */
FUFunctor0(Class* object, ReturnType (Class::*function) ()) { m_pObject = object; m_pFunction = function; }
/** Destructor. */
virtual ~FUFunctor0() {}
/** Calls the functor.
@return Implementation-dependant. */
virtual ReturnType operator()() const
{ return ((*m_pObject).*m_pFunction)(); }
/** Checks whether this functor points towards the given member function.
@param object The object which holds the member function.
@param function The member function.
@return Whether this functor points towards the given member function. */
virtual bool Compare(void* object, void* function) const
{ return object == m_pObject && (size_t)function == *(size_t*)&m_pFunction; }
/** Returns a copy of this functor */
virtual IFunctor0<ReturnType>* Copy() const
{ return new FUFunctor0<Class, ReturnType>(m_pObject, m_pFunction); }
};
/** Shortcut for new FUFunctor0<>.
@param o An object.
@param function A member function. */
template <class ClassName, class ReturnType>
inline FUFunctor0<ClassName, ReturnType>* NewFUFunctor0(ClassName* o, ReturnType (ClassName::*function) ())
{
return new FUFunctor0<ClassName, ReturnType>(o, function);
}
/**
A pseudo-functor with no arguments, specialized for static functions.
@ingroup FUtils
*/
template<class ReturnType>
class FUStaticFunctor0 : public IFunctor0<ReturnType>
{
private:
ReturnType (*m_pFunction) ();
public:
/** Constructor.
@param function A static function. */
FUStaticFunctor0(ReturnType (*function) ()) { m_pFunction = function; }
/** Destructor. */
virtual ~FUStaticFunctor0() {}
/** Calls the functor.
@return Implementation-dependant. */
virtual ReturnType operator()() const
{ return (*m_pFunction)(); }
/** Checks whether this pseudo-functor points towards the given function.
@param UNUSED Unused.
@param function The static function.
@return Whether this pseudo-functor points towards the given function. */
virtual bool Compare(void* UNUSED(object), void* function) const
{ return (size_t)function == *(size_t*)(size_t)&m_pFunction; }
/** Returns a copy of this functor */
virtual IFunctor0<ReturnType>* Copy() const
{ return new FUStaticFunctor0<ReturnType>(m_pFunction); }
};
/**
A functor with one argument.
@ingroup FUtils
*/
template<class Arg1, class ReturnType>
class IFunctor1
{
public:
/** Destructor. */
virtual ~IFunctor1() {}
/** Calls the functor.
@param argument1 A first argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1) const = 0;
/** Checks whether this functor points towards the given member function.
@param object The object which holds the member function.
@param function The member function.
@return Whether this functor points towards the given member function. */
virtual bool Compare(void* object, void* function) const = 0;
/** Returns a copy of this functor */
virtual IFunctor1<Arg1, ReturnType>* Copy() const = 0;
};
/**
A functor with one arguments.
@ingroup FUtils
*/
template<class Class, class Arg1, class ReturnType>
class FUFunctor1 : public IFunctor1<Arg1, ReturnType>
{
private:
Class* m_pObject;
ReturnType (Class::*m_pFunction) (Arg1);
public:
/** Constructor.
@param object An object.
@param function A member function of this object. */
FUFunctor1(Class* object, ReturnType (Class::*function) (Arg1)) { m_pObject = object; m_pFunction = function; }
/** Destructor. */
virtual ~FUFunctor1() {}
/** Calls the functor.
@param argument1 A first argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1) const
{ return ((*m_pObject).*m_pFunction)(argument1); }
/** Checks whether this functor points towards the given member function.
@param object The object which holds the member function.
@param function The member function.
@return Whether this functor points towards the given member function. */
virtual bool Compare(void* object, void* function) const
{ return object == m_pObject && (size_t)function == *(size_t*)(size_t)&m_pFunction; }
/** Returns a copy of this functor */
virtual IFunctor1<Arg1, ReturnType>* Copy() const
{ return new FUFunctor1<Class, Arg1, ReturnType>(m_pObject, m_pFunction); }
};
/** Shortcut for new FUFunctor1<>.
@param o An object.
@param function A member function. */
template <class ClassName, class Argument1, class ReturnType>
inline FUFunctor1<ClassName, Argument1, ReturnType>* NewFUFunctor1(ClassName* o, ReturnType (ClassName::*function) (Argument1))
{
return new FUFunctor1<ClassName, Argument1, ReturnType>(o, function);
}
/**
A pseudo-functor with one arguments, specialized for static functions.
@ingroup FUtils
*/
template<class Arg1, class ReturnType>
class FUStaticFunctor1 : public IFunctor1<Arg1, ReturnType>
{
private:
ReturnType (*m_pFunction) (Arg1);
public:
/** Constructor.
@param function A static function. */
FUStaticFunctor1(ReturnType (*function) (Arg1)) { m_pFunction = function; }
/** Destructor. */
virtual ~FUStaticFunctor1() {}
/** Calls the functor.
@param argument1 A first argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1) const
{ return (*m_pFunction)(argument1); }
/** Checks whether this pseudo-functor points towards the given function.
@param UNUSED Unused.
@param function The static function.
@return Whether this pseudo-functor points towards the given function. */
virtual bool Compare(void* UNUSED(object), void* function) const
{ return (size_t)function == *(size_t*)(size_t)&m_pFunction; }
/** Returns a copy of this functor */
virtual IFunctor1<Arg1, ReturnType>* Copy() const
{ return new FUStaticFunctor1<Arg1, ReturnType>(m_pFunction); }
};
/**
A functor with two arguments.
@ingroup FUtils
*/
template<class Arg1, class Arg2, class ReturnType>
class IFunctor2
{
public:
/** Destructor. */
virtual ~IFunctor2() {}
/** Calls the functor.
@param argument1 A first argument.
@param argument2 A second argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1, Arg2 argument2) const = 0;
/** Checks whether this functor points towards the given member function.
@param object The object which holds the member function.
@param function The member function.
@return Whether this functor points towards the given member function. */
virtual bool Compare(void* object, void* function) const = 0;
/** Returns a copy of this functor */
virtual IFunctor2<Arg1, Arg2, ReturnType>* Copy() const = 0;
};
/**
A functor with two arguments.
@ingroup FUtils
*/
template<class Class, class Arg1, class Arg2, class ReturnType>
class FUFunctor2 : public IFunctor2<Arg1, Arg2, ReturnType>
{
private:
Class* m_pObject;
ReturnType (Class::*m_pFunction) (Arg1, Arg2);
public:
/** Constructor.
@param object An object.
@param function A member function of this object. */
FUFunctor2(Class* object, ReturnType (Class::*function) (Arg1, Arg2)) { m_pObject = object; m_pFunction = function; }
/** Destructor. */
virtual ~FUFunctor2() {}
/** Calls the functor.
@param argument1 A first argument.
@param argument2 A second argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1, Arg2 argument2) const
{ return ((*m_pObject).*m_pFunction)(argument1, argument2); }
/** Checks whether this functor points towards the given member function.
@param object The object which holds the member function.
@param function The member function.
@return Whether this functor points towards the given member function. */
virtual bool Compare(void* object, void* function) const
{ return object == m_pObject && (size_t)function == *(size_t*)(size_t)&m_pFunction; }
/** Returns a copy of this functor */
virtual IFunctor2<Arg1, Arg2, ReturnType>* Copy() const
{ return new FUFunctor2<Class, Arg1, Arg2, ReturnType>(m_pObject, m_pFunction); }
};
/** Shortcut for new FUFunctor2<>.
@param o An object.
@param function A member function. */
template <class ClassName, class Argument1, class Argument2, class ReturnType>
inline FUFunctor2<ClassName, Argument1, Argument2, ReturnType>* NewFUFunctor2(ClassName* o, ReturnType (ClassName::*function) (Argument1, Argument2))
{
return new FUFunctor2<ClassName, Argument1, Argument2, ReturnType>(o, function);
}
/**
A pseudo-functor with two arguments, specialized for static functions.
@ingroup FUtils
*/
template<class Arg1, class Arg2, class ReturnType>
class FUStaticFunctor2 : public IFunctor2<Arg1, Arg2, ReturnType>
{
private:
ReturnType (*m_pFunction) (Arg1, Arg2);
public:
/** Constructor.
@param function A static function. */
FUStaticFunctor2(ReturnType (*function) (Arg1, Arg2)) { m_pFunction = function; }
/** Destructor. */
virtual ~FUStaticFunctor2() {}
/** Calls the functor.
@param argument1 A first argument.
@param argument2 A second argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1, Arg2 argument2) const
{ return (*m_pFunction)(argument1, argument2); }
/** Checks whether this pseudo-functor points towards the given function.
@param UNUSED Unused.
@param function The static function.
@return Whether this pseudo-functor points towards the given function. */
virtual bool Compare(void* UNUSED(object), void* function) const
{ return (size_t)function == *(size_t*)(size_t)&m_pFunction; }
/** Returns a copy of this functor */
virtual IFunctor2<Arg1, Arg2, ReturnType>* Copy() const
{ return new FUStaticFunctor2<Arg1, Arg2, ReturnType>(m_pFunction); }
};
/**
A functor with three arguments.
@ingroup FUtils
*/
template<class Arg1, class Arg2, class Arg3, class ReturnType>
class IFunctor3
{
public:
/** Destructor. */
virtual ~IFunctor3() {}
/** Calls the functor.
@param argument1 A first argument.
@param argument2 A second argument.
@param argument3 A third argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1, Arg2 argument2, Arg3 argument3) const = 0;
/** Checks whether this functor points towards the given member function.
@param object The object which holds the member function.
@param function The member function.
@return Whether this functor points towards the given member function. */
virtual bool Compare(void* object, void* function) const = 0;
/** Returns a copy of this functor */
virtual IFunctor3<Arg1, Arg2, Arg3, ReturnType>* Copy() const = 0;
};
/**
A functor with three arguments.
@ingroup FUtils
*/
template<class Class, class Arg1, class Arg2, class Arg3, class ReturnType>
class FUFunctor3 : public IFunctor3<Arg1, Arg2, Arg3, ReturnType>
{
private:
Class* m_pObject;
ReturnType (Class::*m_pFunction) (Arg1, Arg2, Arg3);
public:
/** Constructor.
@param object An object.
@param function A member function of this object. */
FUFunctor3(Class* object, ReturnType (Class::*function) (Arg1, Arg2, Arg3)) { m_pObject = object; m_pFunction = function; }
/** Destructor. */
virtual ~FUFunctor3() {}
/** Calls the functor.
@param argument1 A first argument.
@param argument2 A second argument.
@param argument3 A third argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1, Arg2 argument2, Arg3 argument3) const
{ return ((*m_pObject).*m_pFunction)(argument1, argument2, argument3); }
/** Checks whether this functor points towards the given member function.
@param object The object which holds the member function.
@param function The member function.
@return Whether this functor points towards the given member function. */
virtual bool Compare(void* object, void* function) const
{ return object == m_pObject && (size_t)function == *(size_t*)(size_t)&m_pFunction; }
/** Returns a copy of this functor */
virtual IFunctor3<Arg1, Arg2, Arg3, ReturnType>* Copy() const
{ return new FUFunctor3<Class, Arg1, Arg2, Arg3, ReturnType>(m_pObject, m_pFunction); };
};
/** Shortcut for new FUFunctor2<>.
@param o An object.
@param function A member function. */
template <class ClassName, class Argument1, class Argument2, class Argument3, class ReturnType>
inline FUFunctor3<ClassName, Argument1, Argument2, Argument3, ReturnType>* NewFUFunctor3(ClassName* o, ReturnType (ClassName::*function) (Argument1, Argument2, Argument3))
{
return new FUFunctor3<ClassName, Argument1, Argument2, Argument3, ReturnType>(o, function);
}
/**
A pseudo-functor with three arguments, specialized for static functions.
@ingroup FUtils
*/
template<class Arg1, class Arg2, class Arg3, class ReturnType>
class FUStaticFunctor3 : public IFunctor3<Arg1, Arg2, Arg3, ReturnType>
{
private:
ReturnType (*m_pFunction) (Arg1, Arg2, Arg3);
public:
/** Constructor.
@param function A static function. */
FUStaticFunctor3(ReturnType (*function) (Arg1, Arg2, Arg3)) { m_pFunction = function; }
/** Destructor. */
virtual ~FUStaticFunctor3() {}
/** Calls the functor.
@param argument1 A first argument.
@param argument2 A second argument.
@param argument3 A third argument.
@return Implementation-dependant. */
virtual ReturnType operator()(Arg1 argument1, Arg2 argument2, Arg3 argument3) const
{ return (*m_pFunction)(argument1, argument2, argument3); }
/** Checks whether this pseudo-functor points towards the given function.
@param UNUSED Unused.
@param function The static function.
@return Whether this pseudo-functor points towards the given function. */
virtual bool Compare(void* UNUSED(object), void* function) const
{ return (size_t)function == *(size_t*)(size_t)&m_pFunction; }
/** Returns a copy of this functor */
virtual IFunctor3<Arg1, Arg2, Arg3, ReturnType>* Copy() const
{ return new FUStaticFunctor3<Arg1, Arg2, Arg3, ReturnType>(m_pFunction); };
};
#endif //_FU_FUNCTOR_H_
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