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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtQuick module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
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**
**
****************************************************************************/
#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 QQuickParticleGroup : public QQuickStochasticState, public QQmlParserStatus
{
Q_OBJECT
//### Would setting limits per group be useful? Or clutter the API?
//Q_PROPERTY(int maximumAlive READ maximumAlive WRITE setMaximumAlive NOTIFY maximumAliveChanged)
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)
Q_INTERFACES(QQmlParserStatus)
public:
explicit QQuickParticleGroup(QObject* parent = 0);
QQmlListProperty<QObject> particleChildren();
int maximumAlive() const
{
return m_maximumAlive;
}
QQuickParticleSystem* system() const
{
return m_system;
}
public Q_SLOTS:
void setMaximumAlive(int arg)
{
if (m_maximumAlive != arg) {
m_maximumAlive = arg;
Q_EMIT maximumAliveChanged(arg);
}
}
void setSystem(QQuickParticleSystem* arg);
void delayRedirect(QObject* obj);
Q_SIGNALS:
void maximumAliveChanged(int arg);
void systemChanged(QQuickParticleSystem* arg);
protected:
void componentComplete() override;
void classBegin() override {}
private:
void performDelayedRedirects();
int m_maximumAlive;
QQuickParticleSystem* m_system;
QList<QObject*> m_delayedRedirects;
};
QT_END_NAMESPACE
#endif
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