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/* SPDX-FileCopyrightText: 2026 Project Tick
* SPDX-FileContributor: Project Tick
* SPDX-License-Identifier: GPL-3.0-or-later
*
* MeshMC - A Custom Launcher for Minecraft
* Copyright (C) 2026 Project Tick
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#pragma once
#include <functional>
#include <memory>
#include <QObject>
namespace details
{
struct DeleteQObjectLater {
void operator()(QObject* obj) const
{
obj->deleteLater();
}
};
} // namespace details
/**
* 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)
{
if (wrap) {
using namespace std::placeholders;
m_ptr.reset(wrap, std::bind(&QObject::deleteLater, _1));
} else {
m_ptr.reset();
}
}
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;
}
bool operator==(const shared_qobject_ptr<T>& other)
{
return m_ptr == other.m_ptr;
}
bool operator!=(const shared_qobject_ptr<T>& other)
{
return m_ptr != other.m_ptr;
}
private:
std::shared_ptr<T> m_ptr;
};
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