116 lines
2.7 KiB
C++
116 lines
2.7 KiB
C++
// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
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#ifndef QT3DCORE_QNODE_H
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#define QT3DCORE_QNODE_H
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#include <Qt3DCore/qnodeid.h>
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#include <Qt3DCore/qt3dcore_global.h>
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#include <QtCore/QObject>
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#define Q_NODE_NULLPTR static_cast<Qt3DCore::QNode *>(nullptr)
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QT_BEGIN_NAMESPACE
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namespace Qt3DCore {
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class QNode;
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class QNodePrivate;
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class QAspectEngine;
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#if defined(QT_BUILD_INTERNAL)
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class QBackendNodeTester;
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#endif
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using QNodeVector = QList<QNode *>;
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using QNodePtr = QSharedPointer<QNode>;
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class Q_3DCORESHARED_EXPORT QNode : public QObject
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{
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Q_OBJECT
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Q_PROPERTY(Qt3DCore::QNode *parent READ parentNode WRITE setParent NOTIFY parentChanged)
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Q_PROPERTY(bool enabled READ isEnabled WRITE setEnabled NOTIFY enabledChanged)
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public:
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explicit QNode(QNode *parent = nullptr);
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virtual ~QNode();
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QNodeId id() const;
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QNode *parentNode() const;
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bool notificationsBlocked() const;
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bool blockNotifications(bool block);
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QNodeVector childNodes() const;
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bool isEnabled() const;
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public Q_SLOTS:
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void setParent(QNode *parent);
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void setEnabled(bool isEnabled);
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Q_SIGNALS:
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void parentChanged(QObject *parent);
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void enabledChanged(bool enabled);
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void nodeDestroyed();
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protected:
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explicit QNode(QNodePrivate &dd, QNode *parent = nullptr);
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private:
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Q_DECLARE_PRIVATE(QNode)
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// We only want setParent(QNode *) to be callable
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// when dealing with QNode objects
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void setParent(QObject *) = delete;
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Q_PRIVATE_SLOT(d_func(), void _q_postConstructorInit())
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Q_PRIVATE_SLOT(d_func(), void _q_addChild(Qt3DCore::QNode *))
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Q_PRIVATE_SLOT(d_func(), void _q_removeChild(Qt3DCore::QNode *))
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Q_PRIVATE_SLOT(d_func(), void _q_setParentHelper(Qt3DCore::QNode *))
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friend class QAspectEngine;
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friend class QAspectEnginePrivate;
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friend class QAbstractAspectPrivate;
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friend class QScene;
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#if defined(QT_BUILD_INTERNAL)
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friend class QBackendNodeTester;
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#endif
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};
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inline QNodeId qIdForNode(QNode *node){ return node ? node->id() : QNodeId(); }
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template<typename T>
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inline QNodeIdVector qIdsForNodes(const T &nodes)
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{
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QNodeIdVector ids;
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ids.reserve(nodes.size());
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for (const auto n : nodes)
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ids.push_back(n->id());
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return ids;
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}
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struct QNodeIdTypePair
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{
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QNodeIdTypePair() noexcept
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: id()
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, type(nullptr)
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{}
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explicit QNodeIdTypePair(QNodeId _id, const QMetaObject *_type) noexcept
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: id(_id)
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, type(_type)
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{}
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QNodeId id;
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const QMetaObject *type;
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};
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QT3D_DECLARE_TYPEINFO(Qt3DCore, QNodeIdTypePair, Q_PRIMITIVE_TYPE)
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} // namespace Qt3DCore
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QT_END_NAMESPACE
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#endif
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