qquickparticlegroup_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQuickPARTICLEGROUP
#define QQuickPARTICLEGROUP
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include <private/qquickspriteengine_p.h>
#include "qquickparticlesystem_p.h"
#include "qqmlparserstatus.h"
 
QT_BEGIN_NAMESPACE
 
class Q_QUICKPARTICLES_EXPORT QQuickParticleGroup : public QQuickStochasticState,
                                                            public QQmlParserStatus
{
    Q_OBJECT
    Q_PROPERTY(QQuickParticleSystem* system READ system WRITE setSystem NOTIFY systemChanged)
 
    //Intercept children requests and assign to the group & system
    Q_PROPERTY(QQmlListProperty<QObject> particleChildren READ particleChildren DESIGNABLE false)//### Hidden property for in-state system definitions - ought not to be used in actual "Sprite" states
    Q_CLASSINFO("DefaultProperty", "particleChildren")
    QML_NAMED_ELEMENT(ParticleGroup)
    QML_ADDED_IN_VERSION(2, 0)
    Q_INTERFACES(QQmlParserStatus)
 
public:
    explicit QQuickParticleGroup(QObject *parent = nullptr);
 
    QQmlListProperty<QObject> particleChildren();
 
    QQuickParticleSystem* system() const
    {
        return m_system;
    }
 
public Q_SLOTS:
 
    void setSystem(QQuickParticleSystem* arg);
 
    void delayRedirect(QObject* obj);
 
Q_SIGNALS:
 
    void systemChanged(QQuickParticleSystem* arg);
 
protected:
    void componentComplete() override;
    void classBegin() override {}
 
private:
 
    void performDelayedRedirects();
 
    QQuickParticleSystem* m_system;
    QList<QObject*> m_delayedRedirects;
};
 
QT_END_NAMESPACE
 
#endif