49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
#pragma once
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#include <QObject>
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#include <QSharedPointer>
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#include <functional>
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#include <memory>
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namespace details {
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[[maybe_unused]] static void do_delete_later(QObject* obj)
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{
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if (obj)
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obj->deleteLater();
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}
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struct DeleteQObjectLater {
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void operator()(QObject* obj) const { do_delete_later(obj); }
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};
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} // namespace details
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/**
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* A unique pointer class with unique pointer semantics intended for derivates of QObject
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* Calls deleteLater() instead of destroying the contained object immediately
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*/
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template <typename T>
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using unique_qobject_ptr = std::unique_ptr<T, details::DeleteQObjectLater>;
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/**
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* A shared pointer class with shared pointer semantics intended for derivates of QObject
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* Calls deleteLater() instead of destroying the contained object immediately
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*/
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template <typename T>
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class shared_qobject_ptr : public QSharedPointer<T> {
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public:
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constexpr shared_qobject_ptr() : QSharedPointer<T>() {}
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constexpr shared_qobject_ptr(T* ptr) : QSharedPointer<T>(ptr, details::do_delete_later) {}
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constexpr shared_qobject_ptr(std::nullptr_t null_ptr) : QSharedPointer<T>(null_ptr, details::do_delete_later) {}
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template <typename Derived>
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constexpr shared_qobject_ptr(const shared_qobject_ptr<Derived>& other) : QSharedPointer<T>(other)
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{}
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void reset() { QSharedPointer<T>::reset(); }
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void reset(const shared_qobject_ptr<T>& other)
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{
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shared_qobject_ptr<T> t(other);
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this->swap(t);
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}
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};
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