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#pragma once
#include <functional>
#include <memory>
#include <QObject>
namespace details
{
struct DeleteQObjectLater
{
void operator()(QObject *obj) const
{
obj->deleteLater();
}
};
}
/**
* A unique pointer class with unique pointer semantics intended for derivates of QObject
* Calls deleteLater() instead of destroying the contained object immediately
*/
template<typename T> using unique_qobject_ptr = std::unique_ptr<T, details::DeleteQObjectLater>;
/**
* A shared pointer class with shared pointer semantics intended for derivates of QObject
* Calls deleteLater() instead of destroying the contained object immediately
*/
template <typename T>
class shared_qobject_ptr
{
public:
shared_qobject_ptr(){}
shared_qobject_ptr(T * wrap)
{
reset(wrap);
}
shared_qobject_ptr(const shared_qobject_ptr<T>& other)
{
m_ptr = other.m_ptr;
}
template<typename Derived>
shared_qobject_ptr(const shared_qobject_ptr<Derived> &other)
{
m_ptr = other.unwrap();
}
public:
void reset(T * wrap)
{
using namespace std::placeholders;
m_ptr.reset(wrap, std::bind(&QObject::deleteLater, _1));
}
void reset(const shared_qobject_ptr<T> &other)
{
m_ptr = other.m_ptr;
}
void reset()
{
m_ptr.reset();
}
T * get() const
{
return m_ptr.get();
}
T * operator->() const
{
return m_ptr.get();
}
T & operator*() const
{
return *m_ptr.get();
}
operator bool() const
{
return m_ptr.get() != nullptr;
}
const std::shared_ptr <T> unwrap() const
{
return m_ptr;
}
private:
std::shared_ptr <T> m_ptr;
};
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