weakbase.hxx

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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#ifndef INCLUDED_TOOLS_WEAKBASE_HXX
#define INCLUDED_TOOLS_WEAKBASE_HXX
 
#include <tools/weakbase.h>
 
 
namespace tools
{
 
template< class reference_type >
inline WeakReference< reference_type >::WeakReference()
{
    mpWeakConnection = new WeakConnection;
}
 
template< class reference_type >
inline WeakReference< reference_type >::WeakReference( reference_type* pReference )
{
    reset( pReference );
}
 
template< class reference_type >
inline WeakReference< reference_type >::WeakReference( const WeakReference< reference_type >& rWeakRef )
{
    mpWeakConnection = rWeakRef.mpWeakConnection;
}
 
template< class reference_type >
inline WeakReference< reference_type >::WeakReference( WeakReference< reference_type >&& rWeakRef )
{
    mpWeakConnection = std::move(rWeakRef.mpWeakConnection);
    rWeakRef.reset();
}
 
template< class reference_type >
inline bool WeakReference< reference_type >::is() const
{
    return mpWeakConnection->mpReference != nullptr;
}
 
template< class reference_type >
inline reference_type * WeakReference< reference_type >::get() const
{
    auto pWeakBase = mpWeakConnection->mpReference;
    if (!pWeakBase)
        return nullptr;
    assert(dynamic_cast<reference_type *>(pWeakBase));
    return static_cast<reference_type *>(pWeakBase);
}
 
template< class reference_type >
inline void WeakReference< reference_type >::reset( reference_type* pReference )
{
    if( pReference )
        mpWeakConnection = pReference->getWeakConnection();
    else
        reset();
}
 
template< class reference_type >
inline void WeakReference< reference_type >::reset()
{
    mpWeakConnection = new WeakConnection;
}
 
template< class reference_type >
inline reference_type * WeakReference< reference_type >::operator->() const
{
    return get();
}
 
template< class reference_type >
inline reference_type& WeakReference< reference_type >::operator*() const
{
    return *get();
}
 
template< class reference_type >
inline bool WeakReference< reference_type >::operator==(const reference_type * pReferenceObject) const
{
    return mpWeakConnection->mpReference == pReferenceObject;
}
 
template< class reference_type >
inline bool WeakReference< reference_type >::operator==(const WeakReference<reference_type> & handle) const
{
    return mpWeakConnection == handle.mpWeakConnection;
}
 
template< class reference_type >
inline bool WeakReference< reference_type >::operator!=(const WeakReference<reference_type> & handle) const
{
    return mpWeakConnection != handle.mpWeakConnection;
}
 
template< class reference_type >
inline bool WeakReference< reference_type >::operator<(const WeakReference<reference_type> & handle) const
{
    return mpWeakConnection->mpReference < handle.mpWeakConnection->mpReference;
}
 
template< class reference_type >
inline bool WeakReference< reference_type >::operator>(const WeakReference<reference_type> & handle) const
{
    return mpWeakConnection->mpReference > handle.mpWeakConnection->mpReference;
}
 
template< class reference_type >
inline WeakReference<reference_type>& WeakReference<reference_type>::operator= (
    const WeakReference<reference_type>& rReference)
{
    if (&rReference != this)
        mpWeakConnection = rReference.mpWeakConnection;
    return *this;
}
 
template< class reference_type >
inline WeakReference<reference_type>& WeakReference<reference_type>::operator= (
    WeakReference<reference_type>&& rReference)
{
    mpWeakConnection = std::move(rReference.mpWeakConnection);
    return *this;
}
 
inline void WeakBase::clearWeak()
{
    if( mpWeakConnection.is() )
        mpWeakConnection->mpReference = nullptr;
}
 
inline WeakConnection* WeakBase::getWeakConnection()
{
    if( !mpWeakConnection.is() )
        mpWeakConnection = new WeakConnection( this );
    return mpWeakConnection.get();
}
 
}
 
#endif
 
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