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/* -*- Mode: C++ -*-
* Worldvisions Weaver Software:
* Copyright (C) 1997-2002 Net Integration Technologies, Inc.
*
*/
#ifndef __WVCALLBACK_H
#define __WVCALLBACK_H
class E;
template<typename R,
typename P1 = E,
typename P2 = E,
typename P3 = E,
typename P4 = E,
typename P5 = E,
typename P6 = E,
typename P7 = E,
typename P8 = E>
class WvCallbackImpl
{
public:
struct FrozenParams
{
FrozenParams(const P1 &p1, const P2 &p2, const P3 &p3, const P4 &p4, const P5 &p5, const P6 &p6, const P7 &p7, const P8 &p8)
: p1(p1), p2(p2), p3(p3), p4(p4), p5(p5), p6(p6), p7(p7), p8(p8)
{ }
P1 p1;
P2 p2;
P3 p3;
P4 p4;
P5 p5;
P6 p6;
P7 p7;
P8 p8;
};
typedef R(*type)(P1, P2, P3, P4, P5, P6, P7, P8);
R thaw(const FrozenParams &frozen)
{ return operator()(frozen.p1, frozen.p2, frozen.p3, frozen.p4, frozen.p5, frozen.p6, frozen.p7, frozen.p8); }
virtual R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8) = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<typename R,
typename P1,
typename P2,
typename P3,
typename P4,
typename P5,
typename P6,
typename P7>
class WvCallbackImpl<R, P1, P2, P3, P4, P5, P6, P7, E>
{
public:
struct FrozenParams
{
FrozenParams(const P1 &p1, const P2 &p2, const P3 &p3, const P4 &p4, const P5 &p5, const P6 &p6, const P7 &p7)
: p1(p1), p2(p2), p3(p3), p4(p4), p5(p5), p6(p6), p7(p7)
{ }
P1 p1;
P2 p2;
P3 p3;
P4 p4;
P5 p5;
P6 p6;
P7 p7;
};
typedef R(*type)(P1, P2, P3, P4, P5, P6, P7);
R thaw(const FrozenParams &frozen)
{ return operator()(frozen.p1, frozen.p2, frozen.p3, frozen.p4, frozen.p5, frozen.p6, frozen.p7); }
virtual R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7) = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<typename R,
typename P1,
typename P2,
typename P3,
typename P4,
typename P5,
typename P6>
class WvCallbackImpl<R, P1, P2, P3, P4, P5, P6, E, E>
{
public:
struct FrozenParams
{
FrozenParams(const P1 &p1, const P2 &p2, const P3 &p3, const P4 &p4, const P5 &p5, const P6 &p6)
: p1(p1), p2(p2), p3(p3), p4(p4), p5(p5), p6(p6)
{ }
P1 p1;
P2 p2;
P3 p3;
P4 p4;
P5 p5;
P6 p6;
};
typedef R(*type)(P1, P2, P3, P4, P5, P6);
R thaw(const FrozenParams &frozen)
{ return operator()(frozen.p1, frozen.p2, frozen.p3, frozen.p4, frozen.p5, frozen.p6); }
virtual R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6) = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<typename R,
typename P1,
typename P2,
typename P3,
typename P4,
typename P5>
class WvCallbackImpl<R, P1, P2, P3, P4, P5, E, E, E>
{
public:
struct FrozenParams
{
FrozenParams(const P1 &p1, const P2 &p2, const P3 &p3, const P4 &p4, const P5 &p5)
: p1(p1), p2(p2), p3(p3), p4(p4), p5(p5)
{ }
P1 p1;
P2 p2;
P3 p3;
P4 p4;
P5 p5;
};
typedef R(*type)(P1, P2, P3, P4, P5);
R thaw(const FrozenParams &frozen)
{ return operator()(frozen.p1, frozen.p2, frozen.p3, frozen.p4, frozen.p5); }
virtual R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5) = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<typename R,
typename P1,
typename P2,
typename P3,
typename P4>
class WvCallbackImpl<R, P1, P2, P3, P4, E, E, E, E>
{
public:
struct FrozenParams
{
FrozenParams(const P1 &p1, const P2 &p2, const P3 &p3, const P4 &p4)
: p1(p1), p2(p2), p3(p3), p4(p4)
{ }
P1 p1;
P2 p2;
P3 p3;
P4 p4;
};
typedef R(*type)(P1, P2, P3, P4);
R thaw(const FrozenParams &frozen)
{ return operator()(frozen.p1, frozen.p2, frozen.p3, frozen.p4); }
virtual R operator()(P1 p1, P2 p2, P3 p3, P4 p4) = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<typename R,
typename P1,
typename P2,
typename P3>
class WvCallbackImpl<R, P1, P2, P3, E, E, E, E, E>
{
public:
struct FrozenParams
{
FrozenParams(const P1 &p1, const P2 &p2, const P3 &p3)
: p1(p1), p2(p2), p3(p3)
{ }
P1 p1;
P2 p2;
P3 p3;
};
typedef R(*type)(P1, P2, P3);
R thaw(const FrozenParams &frozen)
{ return operator()(frozen.p1, frozen.p2, frozen.p3); }
virtual R operator()(P1 p1, P2 p2, P3 p3) = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<typename R,
typename P1,
typename P2>
class WvCallbackImpl<R, P1, P2, E, E, E, E, E, E>
{
public:
struct FrozenParams
{
FrozenParams(const P1 &p1, const P2 &p2)
: p1(p1), p2(p2)
{ }
P1 p1;
P2 p2;
};
typedef R(*type)(P1, P2);
R thaw(const FrozenParams &frozen)
{ return operator()(frozen.p1, frozen.p2); }
virtual R operator()(P1 p1, P2 p2) = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<typename R,
typename P1>
class WvCallbackImpl<R, P1, E, E, E, E, E, E, E>
{
public:
struct FrozenParams
{
FrozenParams(const P1 &p1)
: p1(p1)
{ }
P1 p1;
};
typedef R(*type)(P1);
R thaw(const FrozenParams &frozen)
{ return operator()(frozen.p1); }
virtual R operator()(P1 p1) = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<typename R>
class WvCallbackImpl<R, E, E, E, E, E, E, E, E>
{
public:
struct FrozenParams
{
};
typedef R(*type)();
R thaw(const FrozenParams &frozen)
{ return operator()(); }
virtual R operator()() = 0;
virtual WvCallbackImpl* clone() const = 0;
virtual ~WvCallbackImpl()
{ }
};
template<class ParentCallback,
typename Functor>
class WvCallbackFunctor
: public WvCallbackImpl<typename ParentCallback::ReturnType,
typename ParentCallback::Parm1,
typename ParentCallback::Parm2,
typename ParentCallback::Parm3,
typename ParentCallback::Parm4,
typename ParentCallback::Parm5,
typename ParentCallback::Parm6,
typename ParentCallback::Parm7,
typename ParentCallback::Parm8>
{
typedef typename ParentCallback::ReturnType R;
typedef typename ParentCallback::Parm1 P1;
typedef typename ParentCallback::Parm2 P2;
typedef typename ParentCallback::Parm3 P3;
typedef typename ParentCallback::Parm4 P4;
typedef typename ParentCallback::Parm5 P5;
typedef typename ParentCallback::Parm6 P6;
typedef typename ParentCallback::Parm7 P7;
typedef typename ParentCallback::Parm8 P8;
Functor func;
public:
WvCallbackFunctor(const Functor& _func): func(_func)
{ }
WvCallbackFunctor* clone() const
{ return new WvCallbackFunctor(*this); }
R operator()()
{ return func(); }
R operator()(P1 p1)
{ return func(p1); }
R operator()(P1 p1, P2 p2)
{ return func(p1, p2); }
R operator()(P1 p1, P2 p2, P3 p3)
{ return func(p1, p2, p3); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4)
{ return func(p1, p2, p3, p4); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5)
{ return func(p1, p2, p3, p4, p5); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6)
{ return func(p1, p2, p3, p4, p5, p6); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7)
{ return func(p1, p2, p3, p4, p5, p6, p7); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8)
{ return func(p1, p2, p3, p4, p5, p6, p7, p8); }
};
template<class ParentCallback,
typename PtrToObject,
typename PtrToMember>
class WvCallbackMember
: public WvCallbackImpl<typename ParentCallback::ReturnType,
typename ParentCallback::Parm1,
typename ParentCallback::Parm2,
typename ParentCallback::Parm3,
typename ParentCallback::Parm4,
typename ParentCallback::Parm5,
typename ParentCallback::Parm6,
typename ParentCallback::Parm7,
typename ParentCallback::Parm8>
{
typedef typename ParentCallback::ReturnType R;
typedef typename ParentCallback::Parm1 P1;
typedef typename ParentCallback::Parm2 P2;
typedef typename ParentCallback::Parm3 P3;
typedef typename ParentCallback::Parm4 P4;
typedef typename ParentCallback::Parm5 P5;
typedef typename ParentCallback::Parm6 P6;
typedef typename ParentCallback::Parm7 P7;
typedef typename ParentCallback::Parm8 P8;
PtrToObject obj;
PtrToMember member;
public:
WvCallbackMember(PtrToObject _obj, PtrToMember _member)
: obj(_obj), member(_member)
{ }
WvCallbackMember* clone() const
{ return new WvCallbackMember(*this); }
R operator()()
{ return ((*obj).*member)(); }
R operator()(P1 p1)
{ return ((*obj).*member)(p1); }
R operator()(P1 p1, P2 p2)
{ return ((*obj).*member)(p1, p2); }
R operator()(P1 p1, P2 p2, P3 p3)
{ return ((*obj).*member)(p1, p2, p3); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4)
{ return ((*obj).*member)(p1, p2, p3, p4); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5)
{ return ((*obj).*member)(p1, p2, p3, p4, p5); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6)
{ return ((*obj).*member)(p1, p2, p3, p4, p5, p6); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7)
{ return ((*obj).*member)(p1, p2, p3, p4, p5, p6, p7); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8)
{ return ((*obj).*member)(p1, p2, p3, p4, p5, p6, p7, p8); }
};
template<typename R,
typename P1 = E,
typename P2 = E,
typename P3 = E,
typename P4 = E,
typename P5 = E,
typename P6 = E,
typename P7 = E,
typename P8 = E>
class WvCallback
{
private:
typedef WvCallbackImpl<R, P1, P2, P3, P4, P5, P6, P7, P8> Impl;
Impl *impl;
public:
typedef typename Impl::FrozenParams FrozenParams;
typedef R ReturnType;
typedef P1 Parm1;
typedef P2 Parm2;
typedef P3 Parm3;
typedef P4 Parm4;
typedef P5 Parm5;
typedef P6 Parm6;
typedef P7 Parm7;
typedef P8 Parm8;
WvCallback() : impl(0)
{ }
WvCallback(int) : impl(0)
{ }
WvCallback(const WvCallback& cb): impl(0)
{ if(cb.impl) impl = cb.impl->clone(); }
template<typename Functor>
WvCallback(const Functor& func)
{ impl = new WvCallbackFunctor<WvCallback, Functor>(func); }
WvCallback(const typename WvCallbackImpl<R, P1, P2, P3, P4, P5, P6, P7, P8>::type func)
{ impl = new WvCallbackFunctor<WvCallback,
typename WvCallbackImpl<R, P1, P2, P3, P4, P5, P6, P7, P8>
::type>(func); }
template<typename PtrToObject, typename PtrToMember>
WvCallback(PtrToObject obj, PtrToMember member)
{ impl = new WvCallbackMember<WvCallback, PtrToObject, PtrToMember>
(obj, member); }
~WvCallback()
{ delete impl; }
WvCallback& operator=(const WvCallback& cb)
{
if (this != &cb)
{
Impl *oldimp = impl;
impl = 0;
delete oldimp;
if (cb.impl)
impl = cb.impl->clone();
else
impl = 0;
}
return *this;
}
operator bool() const
{ return impl != 0; }
R operator()() const
{ return (*impl)(); }
R operator()(P1 p1) const
{ return (*impl)(p1); }
R operator()(P1 p1, P2 p2) const
{ return (*impl)(p1, p2); }
R operator()(P1 p1, P2 p2, P3 p3) const
{ return (*impl)(p1, p2, p3); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4) const
{ return (*impl)(p1, p2, p3, p4); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5) const
{ return (*impl)(p1, p2, p3, p4, p5); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6) const
{ return (*impl)(p1, p2, p3, p4, p5, p6); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7) const
{ return (*impl)(p1, p2, p3, p4, p5, p6, p7); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7, P8 p8) const
{ return (*impl)(p1, p2, p3, p4, p5, p6, p7, p8); }
R thaw(const FrozenParams &frozen) const
{ return impl->thaw(frozen); }
protected:
// explicitly not defined: these callbacks are way to complex to
// be explicitly compared!
bool operator== (const WvCallback& cb);
};
template<class InnerCallback, typename B>
class WvBoundCallback
{
private:
typedef typename InnerCallback::ReturnType R;
typedef typename InnerCallback::Parm1 P1;
typedef typename InnerCallback::Parm2 P2;
typedef typename InnerCallback::Parm3 P3;
typedef typename InnerCallback::Parm4 P4;
typedef typename InnerCallback::Parm5 P5;
typedef typename InnerCallback::Parm6 P6;
typedef typename InnerCallback::Parm7 P7;
typedef WvCallback<R, B, P1, P2, P3, P4, P5, P6, P7> ComposedCallback;
ComposedCallback cb;
B param;
public:
typedef typename ComposedCallback::FrozenParams FrozenParams;
template<typename PtrToObject, typename PtrToMember>
WvBoundCallback(PtrToObject obj, PtrToMember member, B _param)
: cb(ComposedCallback(obj, member)),
param(_param)
{ }
template<typename Functor>
WvBoundCallback(const Functor& func, B _param)
: cb(ComposedCallback(func)),
param(_param)
{ }
R operator()() const
{ return cb(param); }
R operator()(P1 p1) const
{ return cb(param, p1); }
R operator()(P1 p1, P2 p2) const
{ return cb(param, p1, p2); }
R operator()(P1 p1, P2 p2, P3 p3) const
{ return cb(param, p1, p2, p3); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4) const
{ return cb(param, p1, p2, p3, p4); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5) const
{ return cb(param, p1, p2, p3, p4, p5); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6) const
{ return cb(param, p1, p2, p3, p4, p5, p6); }
R operator()(P1 p1, P2 p2, P3 p3, P4 p4, P5 p5, P6 p6, P7 p7) const
{ return cb(param, p1, p2, p3, p4, p5, p6, p7); }
R thaw(const FrozenParams &frozen) const
{ return cb.thaw(frozen); }
};
#endif /* __WVCALLBACK_H */
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