qchangearbiter_p.h

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// Copyright (C) 2014 Klaralvdalens Datakonsult AB (KDAB).

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

#ifndef QT3DCORE_QCHANGEARBITER_P_H

#define QT3DCORE_QCHANGEARBITER_P_H

//

//  W A R N I N G

//  -------------

//

// This file is not part of the Qt API.  It exists for the convenience

// of other Qt classes.  This header file may change from version to

// version without notice, or even be removed.

//

// We mean it.

//

#include <Qt3DCore/qnodeid.h>

#include <QtCore/QFlags>

#include <QtCore/QList>

#include <QtCore/QMutex>

#include <QtCore/QObject>

#include <QtCore/QPair>

#include <QtCore/QReadWriteLock>

#include <QtCore/QThreadStorage>

#include <QtCore/QVariant>

#include <Qt3DCore/private/qt3dcore_global_p.h>

QT_BEGIN_NAMESPACE

namespace Qt3DCore {

class QNode;

class QObservableInterface;

class QAbstractAspectJobManager;

class QSceneObserverInterface;

class QAbstractPostman;

class QScene;

class QEntity;

class QComponent;

struct ComponentRelationshipChange

    QNode *node;

    QNode *subNode;

    enum RelationShip {

        Added = 0,

        Removed

};

    RelationShip change;

};

class Q_3DCORE_PRIVATE_EXPORT QChangeArbiter

        : public QObject

    Q_OBJECT

public:

    explicit QChangeArbiter(QObject *parent = nullptr);

    ~QChangeArbiter();

    void addDirtyFrontEndNode(QNode *node);

    void addDirtyEntityComponentNodes(QEntity *entity, QComponent *component,

                                      ComponentRelationshipChange::RelationShip change);

    void removeDirtyFrontEndNode(QNode *node);

    QList<QNode *> takeDirtyFrontEndNodes();

    QList<ComponentRelationshipChange> takeDirtyEntityComponentNodes();

    void setScene(Qt3DCore::QScene *scene);

    QScene *scene() const;

Q_SIGNALS:

    void receivedChange();

protected:

    QScene *m_scene;

    QList<QNode *> m_dirtyFrontEndNodes;

    QList<ComponentRelationshipChange> m_dirtyEntityComponentNodeChanges;

};

} // namespace Qt3DCore

QT_END_NAMESPACE

#endif // QT3DCORE_QCHANGEARBITER_P_H