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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMLGRAPHICSPARTICLES_H
+#define QMLGRAPHICSPARTICLES_H
+
+#include <QtDeclarative/qmlgraphicsitem.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+class QmlGraphicsParticle;
+class QmlGraphicsParticles;
+class Q_DECLARATIVE_EXPORT QmlGraphicsParticleMotion : public QObject
+{
+    Q_OBJECT
+public:
+    QmlGraphicsParticleMotion(QObject *parent=0);
+
+    virtual void advance(QmlGraphicsParticle &, int interval);
+    virtual void created(QmlGraphicsParticle &);
+    virtual void destroy(QmlGraphicsParticle &);
+};
+
+class Q_DECLARATIVE_EXPORT QmlGraphicsParticleMotionLinear : public QmlGraphicsParticleMotion
+{
+    Q_OBJECT
+public:
+    QmlGraphicsParticleMotionLinear(QObject *parent=0)
+        : QmlGraphicsParticleMotion(parent) {}
+
+    virtual void advance(QmlGraphicsParticle &, int interval);
+};
+
+class Q_DECLARATIVE_EXPORT QmlGraphicsParticleMotionGravity : public QmlGraphicsParticleMotion
+{
+    Q_OBJECT
+
+    Q_PROPERTY(int xattractor READ xAttractor WRITE setXAttractor)
+    Q_PROPERTY(int yattractor READ yAttractor WRITE setYAttractor)
+    Q_PROPERTY(int acceleration READ acceleration WRITE setAcceleration)
+public:
+    QmlGraphicsParticleMotionGravity(QObject *parent=0)
+        : QmlGraphicsParticleMotion(parent), _xAttr(0), _yAttr(0), _accel(0.00005) {}
+
+    int xAttractor() const { return _xAttr; }
+    void setXAttractor(int x) { _xAttr = x; }
+
+    int yAttractor() const { return _yAttr; }
+    void setYAttractor(int y) { _yAttr = y; }
+
+    int acceleration() const { return int(_accel * 1000000); }
+    void setAcceleration(int accel) { _accel = qreal(accel)/1000000.0; }
+
+    virtual void advance(QmlGraphicsParticle &, int interval);
+
+private:
+    int _xAttr;
+    int _yAttr;
+    qreal _accel;
+};
+
+class Q_DECLARATIVE_EXPORT QmlGraphicsParticleMotionWander : public QmlGraphicsParticleMotion
+{
+    Q_OBJECT
+public:
+    QmlGraphicsParticleMotionWander()
+        : QmlGraphicsParticleMotion(), particles(0), _xvariance(0), _yvariance(0) {}
+
+    virtual void advance(QmlGraphicsParticle &, int interval);
+    virtual void created(QmlGraphicsParticle &);
+    virtual void destroy(QmlGraphicsParticle &);
+
+    struct Data {
+        qreal x_targetV;
+        qreal y_targetV;
+        qreal x_peak;
+        qreal y_peak;
+        qreal x_var;
+        qreal y_var;
+    };
+
+    Q_PROPERTY(int xvariance READ xVariance WRITE setXVariance)
+    int xVariance() const { return int(_xvariance * 1000); }
+    void setXVariance(int var) { _xvariance = var / 1000.0; }
+
+    Q_PROPERTY(int yvariance READ yVariance WRITE setYVariance)
+    int yVariance() const { return int(_yvariance * 1000); }
+    void setYVariance(int var) { _yvariance = var / 1000.0; }
+
+    Q_PROPERTY(int pace READ pace WRITE setPace)
+    int pace() const { return int(_pace * 1000); }
+    void setPace(int pace) { _pace = pace / 1000.0; }
+
+private:
+    QmlGraphicsParticles *particles;
+    qreal _xvariance;
+    qreal _yvariance;
+    qreal _pace;
+};
+
+class QmlGraphicsParticlesPrivate;
+class Q_DECLARATIVE_EXPORT QmlGraphicsParticles : public QmlGraphicsItem
+{
+    Q_OBJECT
+
+    Q_PROPERTY(QUrl source READ source WRITE setSource NOTIFY sourceChanged)
+    Q_PROPERTY(int count READ count WRITE setCount NOTIFY countChanged)
+    Q_PROPERTY(int emissionRate READ emissionRate WRITE setEmissionRate NOTIFY emissionRateChanged)
+    Q_PROPERTY(qreal emissionVariance READ emissionVariance WRITE setEmissionVariance NOTIFY emissionVarianceChanged)
+    Q_PROPERTY(int lifeSpan READ lifeSpan WRITE setLifeSpan NOTIFY lifeSpanChanged)
+    Q_PROPERTY(int lifeSpanDeviation READ lifeSpanDeviation WRITE setLifeSpanDeviation NOTIFY lifeSpanDeviationChanged)
+    Q_PROPERTY(int fadeInDuration READ fadeInDuration WRITE setFadeInDuration NOTIFY fadeInDurationChanged)
+    Q_PROPERTY(int fadeOutDuration READ fadeOutDuration WRITE setFadeOutDuration NOTIFY fadeOutDurationChanged)
+    Q_PROPERTY(qreal angle READ angle WRITE setAngle NOTIFY angleChanged)
+    Q_PROPERTY(qreal angleDeviation READ angleDeviation WRITE setAngleDeviation NOTIFY angleDeviationChanged)
+    Q_PROPERTY(qreal velocity READ velocity WRITE setVelocity NOTIFY velocityChanged)
+    Q_PROPERTY(qreal velocityDeviation READ velocityDeviation WRITE setVelocityDeviation NOTIFY velocityDeviationChanged)
+    Q_PROPERTY(bool emitting READ emitting WRITE setEmitting NOTIFY emittingChanged)
+    Q_PROPERTY(QmlGraphicsParticleMotion *motion READ motion WRITE setMotion)
+    Q_CLASSINFO("DefaultProperty", "motion")
+
+public:
+    QmlGraphicsParticles(QmlGraphicsItem *parent=0);
+    ~QmlGraphicsParticles();
+
+    QUrl source() const;
+    void setSource(const QUrl &);
+
+    int count() const;
+    void setCount(int cnt);
+
+    int emissionRate() const;
+    void setEmissionRate(int);
+
+    qreal emissionVariance() const;
+    void setEmissionVariance(qreal);
+
+    int lifeSpan() const;
+    void setLifeSpan(int);
+
+    int lifeSpanDeviation() const;
+    void setLifeSpanDeviation(int);
+
+    int fadeInDuration() const;
+    void setFadeInDuration(int);
+
+    int fadeOutDuration() const;
+    void setFadeOutDuration(int);
+
+    qreal angle() const;
+    void setAngle(qreal);
+
+    qreal angleDeviation() const;
+    void setAngleDeviation(qreal);
+
+    qreal velocity() const;
+    void setVelocity(qreal);
+
+    qreal velocityDeviation() const;
+    void setVelocityDeviation(qreal);
+
+    bool emitting() const;
+    void setEmitting(bool);
+
+    QmlGraphicsParticleMotion *motion() const;
+    void setMotion(QmlGraphicsParticleMotion *);
+
+    void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
+
+public Q_SLOTS:
+    void burst(int count, int emissionRate=-1);
+
+protected:
+    virtual void componentComplete();
+    QmlGraphicsParticles(QmlGraphicsParticlesPrivate &dd, QmlGraphicsItem *parent);
+
+Q_SIGNALS:
+    void sourceChanged();
+    void countChanged();
+    void emissionRateChanged();
+    void emissionVarianceChanged();
+    void lifeSpanChanged();
+    void lifeSpanDeviationChanged();
+    void fadeInDurationChanged();
+    void fadeOutDurationChanged();
+    void angleChanged();
+    void angleDeviationChanged();
+    void velocityChanged();
+    void velocityDeviationChanged();
+    void emittingChanged();
+
+private Q_SLOTS:
+    void imageLoaded();
+
+private:
+    Q_DISABLE_COPY(QmlGraphicsParticles)
+    Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QmlGraphicsParticles)
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QmlGraphicsParticleMotion)
+QML_DECLARE_TYPE(QmlGraphicsParticleMotionLinear)
+QML_DECLARE_TYPE(QmlGraphicsParticleMotionGravity)
+QML_DECLARE_TYPE(QmlGraphicsParticleMotionWander)
+QML_DECLARE_TYPE(QmlGraphicsParticles)
+
+QT_END_HEADER
+
+#endif