Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-qml into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/qt-qml: (147 commits)
  Add missing semicolons. moc was confused and positionViewAtIndex not invokable.
  Use the correct base URL in resolveUri
  Remove timing sensitivity.
  Optimize id checking.
  Fix examples after 47fb07c9fdf47584ae55f3412102bbeef5576b04.
  Don't use QScriptValueIterator to iterate over arrays.
  Skip test, to be fixed.
  Only release the binding once we're finished with its memory
  Make it harder to accidentally delete a binding
  Adjust test now that redundant contexts are not create due
  Block modifications to internal QDeclarativeContexts
  Don't destroy cookie jar until while someone may be using it.
  Fix tests after 47fb07c9fdf47584ae55f3412102bbeef5576b04.
  Another fix to find
  Improve implicit "." import
  Fix auto test
  Fix type lookup with url
  Fix default values on Textinput
  Add an implicit import "." to types loaded from a local url
  Fix crash
  ...

5 files changed, 1678 insertions, 0 deletions

diff --git a/src/imports/particles/particles.cpp b/src/imports/particles/particles.cpp
new file mode 100644
index 0000000..ae3f318
--- /dev/null
+++ b/src/imports/particles/particles.cpp
@@ -0,0 +1,69 @@
+/****************************************************************************
+**
+** 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 plugins 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtDeclarative/qdeclarativeextensionplugin.h>
+#include <QtDeclarative/qdeclarative.h>
+
+#include "qdeclarativeparticles_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QParticlesQmlModule : public QDeclarativeExtensionPlugin
+{
+    Q_OBJECT
+public:
+    virtual void registerTypes(const char *uri)
+    {
+        Q_ASSERT(QLatin1String(uri) == QLatin1String("Qt.labs.particles"));
+        qmlRegisterType<QDeclarativeParticleMotion>(uri,1,0,"ParticleMotion");
+        qmlRegisterType<QDeclarativeParticleMotionGravity>(uri,1,0,"ParticleMotionGravity");
+        qmlRegisterType<QDeclarativeParticleMotionLinear>(uri,1,0,"ParticleMotionLinear");
+        qmlRegisterType<QDeclarativeParticleMotionWander>(uri,1,0,"ParticleMotionWander");
+        qmlRegisterType<QDeclarativeParticles>(uri,1,0,"Particles");
+    }
+};
+
+QT_END_NAMESPACE
+
+#include "particles.moc"
+
+Q_EXPORT_PLUGIN2(particlesqmlmodule, QT_PREPEND_NAMESPACE(QParticlesQmlModule));
+
diff --git a/src/imports/particles/particles.pro b/src/imports/particles/particles.pro
new file mode 100644
index 0000000..02d9ea6
--- /dev/null
+++ b/src/imports/particles/particles.pro
@@ -0,0 +1,20 @@
+TARGET  = particles
+TARGETPATH = Qt/labs/particles
+include(../qimportbase.pri)
+
+QT += declarative
+
+SOURCES += \
+    qdeclarativeparticles.cpp \
+    particles.cpp
+
+HEADERS += \
+    qdeclarativeparticles_p.h
+
+QTDIR_build:DESTDIR = $$QT_BUILD_TREE/imports/$$TARGETPATH
+target.path = $$[QT_INSTALL_IMPORTS]/$$TARGETPATH
+
+qmldir.files += $$QT_BUILD_TREE/imports/$$TARGETPATH/qmldir
+qmldir.path +=  $$[QT_INSTALL_IMPORTS]/$$TARGETPATH
+
+INSTALLS += target qmldir
diff --git a/src/imports/particles/qdeclarativeparticles.cpp b/src/imports/particles/qdeclarativeparticles.cpp
new file mode 100644
index 0000000..bb6669a
--- /dev/null
+++ b/src/imports/particles/qdeclarativeparticles.cpp
@@ -0,0 +1,1330 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdeclarativeparticles_p.h"
+
+#include <private/qdeclarativeitem_p.h>
+
+#include <private/qdeclarativepixmapcache_p.h>
+#include <private/qfxperf_p_p.h>
+#include <QtCore/QAbstractAnimation>
+
+#include <QPainter>
+#include <QtGui/qdrawutil.h>
+#include <QVarLengthArray>
+
+#include <stdlib.h>
+#include <math.h>
+
+#ifndef M_PI
+#define M_PI 3.14159265358979323846
+#define M_PI_2 (M_PI / 2.)
+#endif
+#ifndef INT_MAX
+#define INT_MAX 2147483647
+#endif
+
+QT_BEGIN_NAMESPACE
+#define PI_SQR 9.8696044
+// parabolic approximation
+inline qreal fastSin(qreal theta)
+{
+    const qreal b = 4 / M_PI;
+    const qreal c = -4 / PI_SQR;
+
+    qreal y = b * theta + c * theta * qAbs(theta);
+    return y;
+}
+
+inline qreal fastCos(qreal theta)
+{
+    theta += M_PI_2;
+    if (theta > M_PI)
+        theta -= 2 * M_PI;
+
+    return fastSin(theta);
+}
+
+class QDeclarativeParticle
+{
+public:
+    QDeclarativeParticle(int time) : lifeSpan(1000), fadeOutAge(800)
+        , opacity(0), birthTime(time), x_velocity(0), y_velocity(0)
+        , state(FadeIn), data(0)
+    {
+    }
+
+    int lifeSpan;
+    int fadeOutAge;
+    qreal x;
+    qreal y;
+    qreal opacity;
+    int birthTime;
+    qreal x_velocity;
+    qreal y_velocity;
+    enum State { FadeIn, Solid, FadeOut };
+    State state;
+    void *data;
+};
+
+//---------------------------------------------------------------------------
+
+/*!
+    \class QDeclarativeParticleMotion
+    \ingroup group_effects
+    \brief The QDeclarativeParticleMotion class is the base class for particle motion.
+    \internal
+
+    This class causes the particles to remain static.
+*/
+
+/*!
+    Constructs a QDeclarativeParticleMotion with parent object \a parent.
+*/
+QDeclarativeParticleMotion::QDeclarativeParticleMotion(QObject *parent) :
+    QObject(parent)
+{
+}
+
+/*!
+    Move the \a particle to its new position.  \a interval is the number of
+    milliseconds elapsed since it was last moved.
+*/
+void QDeclarativeParticleMotion::advance(QDeclarativeParticle &particle, int interval)
+{
+    Q_UNUSED(particle);
+    Q_UNUSED(interval);
+}
+
+/*!
+    The \a particle has just been created.  Some motion strategies require
+    additional state information.  This can be allocated by this function.
+*/
+void QDeclarativeParticleMotion::created(QDeclarativeParticle &particle)
+{
+    Q_UNUSED(particle);
+}
+
+/*!
+    The \a particle is about to be destroyed.  Any additional memory
+    that has been allocated for the particle should be freed.
+*/
+void QDeclarativeParticleMotion::destroy(QDeclarativeParticle &particle)
+{
+    Q_UNUSED(particle);
+}
+
+/*!
+    \qmlclass ParticleMotionLinear
+    \since 4.7
+    \brief The ParticleMotionLinear object moves particles linearly.
+
+    \sa Particles
+*/
+
+/*!
+    \internal
+    \class QDeclarativeParticleMotionLinear
+    \ingroup group_effects
+    \brief The QDeclarativeParticleMotionLinear class moves the particles linearly.
+*/
+
+void QDeclarativeParticleMotionLinear::advance(QDeclarativeParticle &p, int interval)
+{
+    p.x += interval * p.x_velocity;
+    p.y += interval * p.y_velocity;
+}
+
+/*!
+    \qmlclass ParticleMotionGravity
+    \since 4.7
+    \brief The ParticleMotionGravity object moves particles towards a point.
+
+    \sa Particles
+*/
+
+/*!
+    \internal
+    \class QDeclarativeParticleMotionGravity
+    \ingroup group_effects
+    \brief The QDeclarativeParticleMotionGravity class moves the particles towards a point.
+*/
+
+/*!
+    \qmlproperty qreal ParticleMotionGravity::xattractor
+    \qmlproperty qreal ParticleMotionGravity::yattractor
+    These properties hold the x and y coordinates of the point attracting the particles.
+*/
+
+/*!
+    \qmlproperty qreal ParticleMotionGravity::acceleration
+    This property holds the acceleration to apply to the particles.
+*/
+
+/*!
+    \property QDeclarativeParticleMotionGravity::xattractor
+    \brief the x coordinate of the point attracting the particles.
+*/
+
+/*!
+    \property QDeclarativeParticleMotionGravity::yattractor
+    \brief the y coordinate of the point attracting the particles.
+*/
+
+/*!
+    \property QDeclarativeParticleMotionGravity::acceleration
+    \brief the acceleration to apply to the particles.
+*/
+
+void QDeclarativeParticleMotionGravity::setXAttractor(qreal x)
+{
+    if (qFuzzyCompare(x, _xAttr))
+        return;
+    _xAttr = x;
+    emit xattractorChanged();
+}
+
+void QDeclarativeParticleMotionGravity::setYAttractor(qreal y)
+{
+    if (qFuzzyCompare(y, _yAttr))
+        return;
+    _yAttr = y;
+    emit yattractorChanged();
+}
+
+void QDeclarativeParticleMotionGravity::setAcceleration(qreal accel)
+{
+    qreal scaledAccel = accel/1000000.0;
+    if (qFuzzyCompare(scaledAccel, _accel))
+        return;
+    _accel = scaledAccel;
+    emit accelerationChanged();
+}
+
+void QDeclarativeParticleMotionGravity::advance(QDeclarativeParticle &p, int interval)
+{
+    qreal xdiff = p.x - _xAttr;
+    qreal ydiff = p.y - _yAttr;
+
+    qreal xcomp = xdiff / (xdiff + ydiff);
+    qreal ycomp = ydiff / (xdiff + ydiff);
+
+    p.x_velocity += xcomp * _accel * interval;
+    p.y_velocity += ycomp * _accel * interval;
+
+    p.x += interval * p.x_velocity;
+    p.y += interval * p.y_velocity;
+}
+
+/*!
+    \qmlclass ParticleMotionWander
+    \since 4.7
+    \brief The ParticleMotionWander object moves particles in a somewhat random fashion.
+
+    The particles will continue roughly in the original direction, however will randomly
+    drift to each side.
+
+    The code below produces an effect similar to falling snow.
+
+    \qml
+Rectangle {
+    width: 240
+    height: 320
+    color: "black"
+
+    Particles {
+        y: 0
+        width: parent.width
+        height: 30
+        source: "star.png"
+        lifeSpan: 5000
+        count: 50
+        angle: 70
+        angleDeviation: 36
+        velocity: 30
+        velocityDeviation: 10
+        ParticleMotionWander {
+            xvariance: 30
+            pace: 100
+        }
+    }
+}
+    \endqml
+
+    \sa Particles
+*/
+
+/*!
+    \internal
+    \class QDeclarativeParticleMotionWander
+    \ingroup group_effects
+    \brief The QDeclarativeParticleMotionWander class moves particles in a somewhat random fashion.
+
+    The particles will continue roughly in the original direction, however will randomly
+    drift to each side.
+*/
+
+/*!
+    \qmlproperty qreal QDeclarativeParticleMotionWander::xvariance
+    \qmlproperty qreal QDeclarativeParticleMotionWander::yvariance
+
+    These properties set the amount to wander in the x and y directions.
+*/
+
+/*!
+    \qmlproperty qreal QDeclarativeParticleMotionWander::pace
+    This property holds how quickly the paricles will move from side to side.
+*/
+
+void QDeclarativeParticleMotionWander::advance(QDeclarativeParticle &p, int interval)
+{
+    if (!particles)
+        particles = qobject_cast<QDeclarativeParticles*>(parent());
+    if (particles) {
+        Data *d = (Data*)p.data;
+        if (_xvariance != 0.) {
+            qreal xdiff = p.x_velocity - d->x_targetV;
+            if ((xdiff > d->x_peak && d->x_var > 0.0) || (xdiff < -d->x_peak && d->x_var < 0.0)) {
+                d->x_var = -d->x_var;
+                d->x_peak = _xvariance + _xvariance * qreal(qrand()) / RAND_MAX;
+            }
+            p.x_velocity += d->x_var * interval;
+        }
+        p.x += interval * p.x_velocity;
+
+        if (_yvariance != 0.) {
+            qreal ydiff = p.y_velocity - d->y_targetV;
+            if ((ydiff > d->y_peak && d->y_var > 0.0) || (ydiff < -d->y_peak && d->y_var < 0.0)) {
+                d->y_var = -d->y_var;
+                d->y_peak = _yvariance + _yvariance * qreal(qrand()) / RAND_MAX;
+            }
+            p.y_velocity += d->y_var * interval;
+        }
+        p.y += interval * p.y_velocity;
+    }
+}
+
+void QDeclarativeParticleMotionWander::created(QDeclarativeParticle &p)
+{
+    if (!p.data) {
+        Data *d = new Data;
+        p.data = (void*)d;
+        d->x_targetV = p.x_velocity;
+        d->y_targetV = p.y_velocity;
+        d->x_peak = _xvariance;
+        d->y_peak = _yvariance;
+        d->x_var = _pace * qreal(qrand()) / RAND_MAX / 1000.0;
+        d->y_var = _pace * qreal(qrand()) / RAND_MAX / 1000.0;
+    }
+}
+
+void QDeclarativeParticleMotionWander::destroy(QDeclarativeParticle &p)
+{
+    if (p.data)
+        delete (Data*)p.data;
+}
+
+void QDeclarativeParticleMotionWander::setXVariance(qreal var)
+{
+    qreal scaledVar = var / 1000.0;
+    if (qFuzzyCompare(scaledVar, _xvariance))
+        return;
+    _xvariance = scaledVar;
+    emit xvarianceChanged();
+}
+
+void QDeclarativeParticleMotionWander::setYVariance(qreal var)
+{
+    qreal scaledVar = var / 1000.0;
+    if (qFuzzyCompare(scaledVar, _yvariance))
+        return;
+    _yvariance = scaledVar;
+    emit yvarianceChanged();
+}
+
+void QDeclarativeParticleMotionWander::setPace(qreal pace)
+{
+    qreal scaledPace = pace / 1000.0;
+    if (qFuzzyCompare(scaledPace, _pace))
+        return;
+    _pace = scaledPace;
+    emit paceChanged();
+}
+
+//---------------------------------------------------------------------------
+class QDeclarativeParticlesPainter : public QDeclarativeItem
+{
+public:
+    QDeclarativeParticlesPainter(QDeclarativeParticlesPrivate *p, QDeclarativeItem* parent)
+        : QDeclarativeItem(parent), d(p)
+    {
+        setFlag(QGraphicsItem::ItemHasNoContents, false);
+        maxX = minX = maxY = minY = 0;
+    }
+
+    void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
+
+    void updateSize();
+
+    qreal maxX;
+    qreal minX;
+    qreal maxY;
+    qreal minY;
+    QDeclarativeParticlesPrivate* d;
+};
+
+//an animation that just gives a tick
+template<class T, void (T::*method)(int)>
+class TickAnimationProxy : public QAbstractAnimation
+{
+public:
+    TickAnimationProxy(T *p, QObject *parent = 0) : QAbstractAnimation(parent), m_p(p) {}
+    virtual int duration() const { return -1; }
+protected:
+    virtual void updateCurrentTime(int msec) { (m_p->*method)(msec); }
+
+private:
+    T *m_p;
+};
+
+//---------------------------------------------------------------------------
+class QDeclarativeParticlesPrivate : public QDeclarativeItemPrivate
+{
+    Q_DECLARE_PUBLIC(QDeclarativeParticles)
+public:
+    QDeclarativeParticlesPrivate()
+        : count(1), emissionRate(-1), emissionVariance(0.5), lifeSpan(1000)
+        , lifeSpanDev(1000), fadeInDur(200), fadeOutDur(300)
+        , angle(0), angleDev(0), velocity(0), velocityDev(0), emissionCarry(0.)
+        , addParticleTime(0), addParticleCount(0), lastAdvTime(0)
+        , motion(0), pendingPixmapCache(false), clock(this)
+    {
+    }
+
+    ~QDeclarativeParticlesPrivate()
+    {
+    }
+
+    void init()
+    {
+        Q_Q(QDeclarativeParticles);
+        paintItem = new QDeclarativeParticlesPainter(this, q);
+    }
+
+    void tick(int time);
+    void createParticle(int time);
+    void updateOpacity(QDeclarativeParticle &p, int age);
+
+    QUrl url;
+    QPixmap image;
+    int count;
+    int emissionRate;
+    qreal emissionVariance;
+    int lifeSpan;
+    int lifeSpanDev;
+    int fadeInDur;
+    int fadeOutDur;
+    qreal angle;
+    qreal angleDev;
+    qreal velocity;
+    qreal velocityDev;
+    qreal emissionCarry;
+    int addParticleTime;
+    int addParticleCount;
+    int lastAdvTime;
+    QDeclarativeParticleMotion *motion;
+    QDeclarativeParticlesPainter *paintItem;
+
+    bool pendingPixmapCache;
+
+    QList<QPair<int, int> > bursts;//countLeft, emissionRate pairs
+    QList<QDeclarativeParticle> particles;
+    TickAnimationProxy<QDeclarativeParticlesPrivate, &QDeclarativeParticlesPrivate::tick> clock;
+
+};
+
+void QDeclarativeParticlesPrivate::tick(int time)
+{
+    Q_Q(QDeclarativeParticles);
+    if (!motion)
+        motion = new QDeclarativeParticleMotionLinear(q);
+
+    int oldCount = particles.count();
+    int removed = 0;
+    int interval = time - lastAdvTime;
+    for (int i = 0; i < particles.count(); ) {
+        QDeclarativeParticle &particle = particles[i];
+        int age = time - particle.birthTime;
+        if (age >= particle.lifeSpan)  {
+            QDeclarativeParticle part = particles.takeAt(i);
+            motion->destroy(part);
+            ++removed;
+        } else {
+            updateOpacity(particle, age);
+            motion->advance(particle, interval);
+            ++i;
+        }
+    }
+
+    if(emissionRate == -1)//Otherwise leave emission to the emission rate
+        while(removed-- && ((count == -1) || particles.count() < count))
+            createParticle(time);
+
+    if (!addParticleTime)
+        addParticleTime = time;
+
+    //Possibly emit new particles
+    if (((count == -1) || particles.count() < count) && emissionRate
+            && !(count==-1 && emissionRate==-1)) {
+        int emissionCount = -1;
+        if (emissionRate != -1){
+            qreal variance = 1.;
+            if (emissionVariance > 0.){
+                variance += (qreal(qrand())/RAND_MAX) * emissionVariance * (qrand()%2?-1.:1.);
+            }
+            qreal emission = emissionRate * (qreal(interval)/1000.);
+            emission = emission * variance + emissionCarry;
+            double tmpDbl;
+            emissionCarry = modf(emission, &tmpDbl);
+            emissionCount = (int)tmpDbl;
+            emissionCount = qMax(0,emissionCount);
+        }
+        while(((count == -1) || particles.count() < count) &&
+                (emissionRate==-1 || emissionCount--))
+            createParticle(time);
+    }
+
+    //Deal with emissions from requested bursts
+    for(int i=0; i<bursts.size(); i++){
+        int emission = 0;
+        if(bursts[i].second == -1){
+            emission = bursts[i].first;
+        }else{
+            qreal variance = 1.;
+            if (emissionVariance > 0.){
+                variance += (qreal(qrand())/RAND_MAX) * emissionVariance * (qrand()%2?-1.:1.);
+            }
+            qreal workingEmission = bursts[i].second * (qreal(interval)/1000.);
+            workingEmission *= variance;
+            emission = (int)workingEmission;
+            emission = qMax(emission, 0);
+        }
+        emission = qMin(emission, bursts[i].first);
+        bursts[i].first -= emission;
+        while(emission--)
+            createParticle(time);
+    }
+    for(int i=bursts.size()-1; i>=0; i--)
+        if(bursts[i].first <= 0)
+            bursts.removeAt(i);
+
+    lastAdvTime = time;
+    paintItem->updateSize();
+    paintItem->update();
+    if (!(oldCount || particles.count()) && (!count || !emissionRate) && bursts.isEmpty()) {
+        lastAdvTime = 0;
+        clock.stop();
+    }
+}
+
+void QDeclarativeParticlesPrivate::createParticle(int time)
+{
+#ifdef Q_ENABLE_PERFORMANCE_LOG
+    QDeclarativePerfTimer<QDeclarativePerf::CreateParticle> x;
+#endif
+    Q_Q(QDeclarativeParticles);
+    QDeclarativeParticle p(time);
+    p.x = q->x() + q->width() * qreal(qrand()) / RAND_MAX - image.width()/2.0;
+    p.y = q->y() + q->height() * qreal(qrand()) / RAND_MAX - image.height()/2.0;
+    p.lifeSpan = lifeSpan;
+    if (lifeSpanDev)
+        p.lifeSpan += int(lifeSpanDev/2 - lifeSpanDev * qreal(qrand()) / RAND_MAX);
+    p.fadeOutAge = p.lifeSpan - fadeOutDur;
+    if (fadeInDur == 0.) {
+        p.state= QDeclarativeParticle::Solid;
+        p.opacity = 1.0;
+    }
+    qreal a = angle;
+    if (angleDev)
+        a += angleDev/2 - angleDev * qreal(qrand()) / RAND_MAX;
+    if (a > M_PI)
+        a = a - 2 * M_PI;
+    qreal v = velocity;
+    if (velocityDev)
+        v += velocityDev/2 - velocityDev * qreal(qrand()) / RAND_MAX;
+    p.x_velocity = v * fastCos(a);
+    p.y_velocity = v * fastSin(a);
+    particles.append(p);
+    motion->created(particles.last());
+}
+
+void QDeclarativeParticlesPrivate::updateOpacity(QDeclarativeParticle &p, int age)
+{
+    switch (p.state) {
+    case QDeclarativeParticle::FadeIn:
+        if (age <= fadeInDur) {
+            p.opacity = qreal(age) / fadeInDur;
+            break;
+        } else {
+            p.opacity = 1.0;
+            p.state = QDeclarativeParticle::Solid;
+            // Fall through
+        }
+    case QDeclarativeParticle::Solid:
+        if (age <= p.fadeOutAge) {
+            break;
+        } else {
+            p.state = QDeclarativeParticle::FadeOut;
+            // Fall through
+        }
+    case QDeclarativeParticle::FadeOut:
+        p.opacity = qreal(p.lifeSpan - age) / fadeOutDur;
+        break;
+    }
+}
+
+/*!
+    \qmlclass Particles
+    \since 4.7
+    \brief The Particles object generates and moves particles.
+    \inherits Item
+
+    This element provides preliminary support for particles in QML,
+    and may be heavily changed or removed in later versions.
+
+    The particles created by this object cannot be dealt with
+    directly, they can only be controlled through the parameters of
+    the Particles object. The particles are all the same pixmap,
+    specified by the user.
+
+    The particles are painted relative to the parent of the Particles
+    object.  Moving the Particles object will not move the particles
+    already emitted.
+
+    The below example creates two differently behaving particle
+    sources.  The top one has particles falling from the top like
+    snow, the lower one has particles expelled up like a fountain.
+
+    \qml
+Rectangle {
+    width: 240
+    height: 320
+    color: "black"
+    Particles {
+        y: 0
+        width: parent.width
+        height: 30
+        source: "star.png"
+        lifeSpan: 5000
+        count: 50
+        angle: 70
+        angleDeviation: 36
+        velocity: 30
+        velocityDeviation: 10
+        ParticleMotionWander {
+            xvariance: 30
+            pace: 100
+        }
+    }
+    Particles {
+        y: 300
+        x: 120
+        width: 1
+        height: 1
+        source: "star.png"
+        lifeSpan: 5000
+        count: 200
+        angle: 270
+        angleDeviation: 45
+        velocity: 50
+        velocityDeviation: 30
+        ParticleMotionGravity {
+            yattractor: 1000
+            xattractor: 0
+            acceleration: 25
+        }
+    }
+}
+    \endqml
+    \image particles.gif
+*/
+
+/*!
+    \internal
+    \class QDeclarativeParticles
+    \ingroup group_effects
+    \brief The QDeclarativeParticles class generates and moves particles.
+*/
+
+QDeclarativeParticles::QDeclarativeParticles(QDeclarativeItem *parent)
+    : QDeclarativeItem(*(new QDeclarativeParticlesPrivate), parent)
+{
+    Q_D(QDeclarativeParticles);
+    d->init();
+}
+
+QDeclarativeParticles::~QDeclarativeParticles()
+{
+    Q_D(QDeclarativeParticles);
+    if (d->pendingPixmapCache)
+        QDeclarativePixmapCache::cancel(d->url, this);
+}
+
+/*!
+    \qmlproperty string Particles::source
+    This property holds the URL of the particle image.
+*/
+
+/*!
+    \property QDeclarativeParticles::source
+    \brief the URL of the particle image.
+*/
+QUrl QDeclarativeParticles::source() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->url;
+}
+
+void QDeclarativeParticles::imageLoaded()
+{
+    Q_D(QDeclarativeParticles);
+    d->pendingPixmapCache = false;
+    QDeclarativePixmapCache::get(d->url, &d->image);
+    d->paintItem->updateSize();
+    d->paintItem->update();
+}
+
+void QDeclarativeParticles::setSource(const QUrl &name)
+{
+    Q_D(QDeclarativeParticles);
+
+    if ((d->url.isEmpty() == name.isEmpty()) && name == d->url)
+        return;
+
+    if (d->pendingPixmapCache) {
+        QDeclarativePixmapCache::cancel(d->url, this);
+        d->pendingPixmapCache = false;
+    }
+    if (name.isEmpty()) {
+        d->url = name;
+        d->image = QPixmap();
+        d->paintItem->updateSize();
+        d->paintItem->update();
+    } else {
+        d->url = name;
+        Q_ASSERT(!name.isRelative());
+        QDeclarativePixmapReply::Status status = QDeclarativePixmapCache::get(d->url, &d->image);
+        if (status != QDeclarativePixmapReply::Ready && status != QDeclarativePixmapReply::Error) {
+            QDeclarativePixmapReply *reply = QDeclarativePixmapCache::request(qmlEngine(this), d->url);
+            connect(reply, SIGNAL(finished()), this, SLOT(imageLoaded()));
+            d->pendingPixmapCache = true;
+        } else {
+            //### unify with imageLoaded
+            d->paintItem->updateSize();
+            d->paintItem->update();
+        }
+    }
+    emit sourceChanged();
+}
+
+/*!
+    \qmlproperty int Particles::count
+    This property holds the maximum number of particles
+
+    The particles element emits particles until it has count active
+    particles. When this number is reached, new particles are not emitted until
+    some of the current particles reach the end of their lifespan.
+
+    If count is -1 then there is no maximum number of active particles, and
+    particles will be constantly emitted at the rate specified by emissionRate.
+
+    The default value for count is 1.
+
+    If both count and emissionRate are set to -1, nothing will be emitted.
+
+*/
+
+/*!
+    \property QDeclarativeParticles::count
+    \brief the maximum number of particles
+*/
+int QDeclarativeParticles::count() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->count;
+}
+
+void QDeclarativeParticles::setCount(int cnt)
+{
+    Q_D(QDeclarativeParticles);
+    if (cnt == d->count)
+        return;
+
+    int oldCount = d->count;
+    d->count = cnt;
+    d->addParticleTime = 0;
+    d->addParticleCount = d->particles.count();
+    if (!oldCount && d->clock.state() != QAbstractAnimation::Running && d->count && d->emissionRate) {
+        d->clock.start();
+    }
+    d->paintItem->updateSize();
+    d->paintItem->update();
+    emit countChanged();
+}
+
+
+/*!
+    \qmlproperty int Particles::emissionRate
+    This property holds the target number of particles to emit every second.
+
+    The particles element will emit up to emissionRate particles every
+    second. Fewer particles may be emitted per second if the maximum number of
+    particles has been reached.
+
+    If emissionRate is set to -1 there is no limit to the number of
+    particles emitted per second, and particles will be instantly emitted to
+    reach the maximum number of particles specified by count.
+
+    The default value for emissionRate is -1.
+
+    If both count and emissionRate are set to -1, nothing will be emitted.
+*/
+
+/*!
+    \property QDeclarativeParticles::emissionRate
+    \brief the emission rate of particles
+*/
+int QDeclarativeParticles::emissionRate() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->emissionRate;
+}
+void QDeclarativeParticles::setEmissionRate(int er)
+{
+    Q_D(QDeclarativeParticles);
+    if(er == d->emissionRate)
+        return;
+    d->emissionRate = er;
+    if (d->clock.state() != QAbstractAnimation::Running && d->count && d->emissionRate) {
+            d->clock.start();
+    }
+    emit emissionRateChanged();
+}
+
+/*!
+    \qmlproperty qreal Particles::emissionVariance
+    This property holds how inconsistent the rate of particle emissions are.
+    It is a number between 0 (no variance) and 1 (some variance).
+
+    The expected number of particles emitted per second is emissionRate. If
+    emissionVariance is 0 then particles will be emitted consistently throughout
+    each second to reach that number. If emissionVariance is greater than 0 the
+    rate of particle emission will vary randomly throughout the second, with the
+    consequence that the actual number of particles emitted in one second will
+    vary randomly as well.
+
+    emissionVariance is the maximum deviation from emitting
+    emissionRate particles per second. An emissionVariance of 0 means you should
+    get exactly emissionRate particles emitted per second,
+    and an emissionVariance of 1 means you will get between zero and two times
+    emissionRate particles per second, but you should get emissionRate particles
+    per second on average.
+
+    Note that even with an emissionVariance of 0 there may be some variance due
+    to performance and hardware constraints.
+
+    The default value of emissionVariance is 0.5
+*/
+
+/*!
+    \property QDeclarativeParticles::emissionVariance
+    \brief how much the particle emission amounts vary per tick
+*/
+
+qreal QDeclarativeParticles::emissionVariance() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->emissionVariance;
+}
+
+void QDeclarativeParticles::setEmissionVariance(qreal ev)
+{
+    Q_D(QDeclarativeParticles);
+    if(d->emissionVariance == ev)
+        return;
+    d->emissionVariance = ev;
+    emit emissionVarianceChanged();
+}
+
+/*!
+    \qmlproperty int Particles::lifeSpan
+    \qmlproperty int Particles::lifeSpanDeviation
+
+    These properties describe the life span of each particle.
+
+    The default lifespan for a particle is 1000ms.
+
+    lifeSpanDeviation randomly varies the lifeSpan up to the specified variation.  For
+    example, the following creates particles whose lifeSpan will vary
+    from 150ms to 250ms:
+
+    \qml
+Particles {
+    source: "star.png"
+    lifeSpan: 200
+    lifeSpanDeviation: 100
+}
+    \endqml
+*/
+
+/*!
+    \property QDeclarativeParticles::lifeSpan
+    \brief the life span of each particle.
+
+    Default value is 1000ms.
+
+    \sa QDeclarativeParticles::lifeSpanDeviation
+*/
+int QDeclarativeParticles::lifeSpan() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->lifeSpan;
+}
+
+void QDeclarativeParticles::setLifeSpan(int ls)
+{
+    Q_D(QDeclarativeParticles);
+    if(d->lifeSpan == ls)
+        return;
+    d->lifeSpan = ls;
+    emit lifeSpanChanged();
+}
+
+/*!
+    \property QDeclarativeParticles::lifeSpanDeviation
+    \brief the maximum possible deviation from the set lifeSpan.
+
+    Randomly varies the lifeSpan up to the specified variation.  For
+    example, the following creates particles whose lifeSpan will vary
+    from 150ms to 250ms:
+
+\qml
+Particles {
+    source: "star.png"
+    lifeSpan: 200
+    lifeSpanDeviation: 100
+}
+\endqml
+
+    \sa QDeclarativeParticles::lifeSpan
+*/
+int QDeclarativeParticles::lifeSpanDeviation() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->lifeSpanDev;
+}
+
+void QDeclarativeParticles::setLifeSpanDeviation(int dev)
+{
+    Q_D(QDeclarativeParticles);
+    if(d->lifeSpanDev == dev)
+        return;
+    d->lifeSpanDev = dev;
+    emit lifeSpanDeviationChanged();
+}
+
+/*!
+    \qmlproperty int Particles::fadeInDuration
+    \qmlproperty int Particles::fadeOutDuration
+    These properties hold the time taken to fade the particles in and out.
+
+    By default fade in is 200ms and fade out is 300ms.
+*/
+
+/*!
+    \property QDeclarativeParticles::fadeInDuration
+    \brief the time taken to fade in the particles.
+
+    Default value is 200ms.
+*/
+int QDeclarativeParticles::fadeInDuration() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->fadeInDur;
+}
+
+void QDeclarativeParticles::setFadeInDuration(int dur)
+{
+    Q_D(QDeclarativeParticles);
+    if (dur < 0.0 || dur == d->fadeInDur)
+        return;
+    d->fadeInDur = dur;
+    emit fadeInDurationChanged();
+}
+
+/*!
+    \property QDeclarativeParticles::fadeOutDuration
+    \brief the time taken to fade out the particles.
+
+    Default value is 300ms.
+*/
+int QDeclarativeParticles::fadeOutDuration() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->fadeOutDur;
+}
+
+void QDeclarativeParticles::setFadeOutDuration(int dur)
+{
+    Q_D(QDeclarativeParticles);
+    if (dur < 0.0 || d->fadeOutDur == dur)
+        return;
+    d->fadeOutDur = dur;
+    emit fadeOutDurationChanged();
+}
+
+/*!
+    \qmlproperty real Particles::angle
+    \qmlproperty real Particles::angleDeviation
+
+    These properties control particle direction.
+
+    angleDeviation randomly varies the direction up to the specified variation.  For
+    example, the following creates particles whose initial direction will
+    vary from 15 degrees to 105 degrees:
+
+    \qml
+Particles {
+    source: "star.png"
+    angle: 60
+    angleDeviation: 90
+}
+    \endqml
+*/
+
+/*!
+    \property QDeclarativeParticles::angle
+    \brief the initial angle of direction.
+
+    \sa QDeclarativeParticles::angleDeviation
+*/
+qreal QDeclarativeParticles::angle() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->angle * 180.0 / M_PI;
+}
+
+void QDeclarativeParticles::setAngle(qreal angle)
+{
+    Q_D(QDeclarativeParticles);
+    qreal radAngle = angle * M_PI / 180.0;
+    if(radAngle == d->angle)
+        return;
+    d->angle = radAngle;
+    emit angleChanged();
+}
+
+/*!
+    \property QDeclarativeParticles::angleDeviation
+    \brief the maximum possible deviation from the set angle.
+
+    Randomly varies the direction up to the specified variation.  For
+    example, the following creates particles whose initial direction will
+    vary from 15 degrees to 105 degrees:
+
+\qml
+Particles {
+    source: "star.png"
+    angle: 60
+    angleDeviation: 90
+}
+\endqml
+
+    \sa QDeclarativeParticles::angle
+*/
+qreal QDeclarativeParticles::angleDeviation() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->angleDev * 180.0 / M_PI;
+}
+
+void QDeclarativeParticles::setAngleDeviation(qreal dev)
+{
+    Q_D(QDeclarativeParticles);
+    qreal radDev = dev * M_PI / 180.0;
+    if(radDev == d->angleDev)
+        return;
+    d->angleDev = radDev;
+    emit angleDeviationChanged();
+}
+
+/*!
+    \qmlproperty real Particles::velocity
+    \qmlproperty real Particles::velocityDeviation
+
+    These properties control the velocity of the particles.
+
+    velocityDeviation randomly varies the velocity up to the specified variation.  For
+    example, the following creates particles whose initial velocity will
+    vary from 40 to 60.
+
+    \qml
+Particles {
+    source: "star.png"
+    velocity: 50
+    velocityDeviation: 20
+}
+    \endqml
+*/
+
+/*!
+    \property QDeclarativeParticles::velocity
+    \brief the initial velocity of the particles.
+
+    \sa QDeclarativeParticles::velocityDeviation
+*/
+qreal QDeclarativeParticles::velocity() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->velocity * 1000.0;
+}
+
+void QDeclarativeParticles::setVelocity(qreal velocity)
+{
+    Q_D(QDeclarativeParticles);
+    qreal realVel = velocity / 1000.0;
+    if(realVel == d->velocity)
+        return;
+    d->velocity = realVel;
+    emit velocityChanged();
+}
+
+/*!
+    \property QDeclarativeParticles::velocityDeviation
+    \brief the maximum possible deviation from the set velocity.
+
+    Randomly varies the velocity up to the specified variation.  For
+    example, the following creates particles whose initial velocity will
+    vary from 40 to 60.
+
+\qml
+Particles {
+    source: "star.png"
+    velocity: 50
+    velocityDeviation: 20
+}
+\endqml
+
+    \sa QDeclarativeParticles::velocity
+*/
+qreal QDeclarativeParticles::velocityDeviation() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->velocityDev * 1000.0;
+}
+
+void QDeclarativeParticles::setVelocityDeviation(qreal velocity)
+{
+    Q_D(QDeclarativeParticles);
+    qreal realDev = velocity / 1000.0;
+    if(realDev == d->velocityDev)
+        return;
+    d->velocityDev = realDev;
+    emit velocityDeviationChanged();
+}
+
+/*!
+    \qmlproperty ParticleMotion Particles::motion
+    This property sets the type of motion to apply to the particles.
+
+    When a particle is created it will have an initial direction and velocity.
+    The motion of the particle during its lifeSpan is then influenced by the
+    motion property.
+
+    Default motion is ParticleMotionLinear.
+*/
+
+/*!
+    \property QDeclarativeParticles::motion
+    \brief sets the type of motion to apply to the particles.
+
+    When a particle is created it will have an initial direction and velocity.
+    The motion of the particle during its lifeSpan is then influenced by the
+    motion property.
+
+    Default motion is QDeclarativeParticleMotionLinear.
+*/
+QDeclarativeParticleMotion *QDeclarativeParticles::motion() const
+{
+    Q_D(const QDeclarativeParticles);
+    return d->motion;
+}
+
+void QDeclarativeParticles::setMotion(QDeclarativeParticleMotion *motion)
+{
+    Q_D(QDeclarativeParticles);
+    if (motion == d->motion)
+        return;
+    d->motion = motion;
+    emit motionChanged();
+}
+
+/*!
+    \qmlmethod Particles::burst(int count, int emissionRate)
+
+    Initiates a burst of particles.
+
+    This method takes two arguments. The first argument is the number
+    of particles to emit and the second argument is the emissionRate for the
+    burst. If the second argument is omitted, it is treated as -1. The burst
+    of particles has a separate emissionRate and count to the normal emission of
+    particles. The burst uses the same values as normal emission for all other
+    properties, including emissionVariance.
+
+    The normal emission of particles will continue during the burst, however
+    the particles created by the burst count towards the maximum number used by
+    normal emission. To avoid this behavior, use two Particles elements.
+
+*/
+void QDeclarativeParticles::burst(int count, int emissionRate)
+{
+    Q_D(QDeclarativeParticles);
+    d->bursts << qMakePair(count, emissionRate);
+    if (d->clock.state() != QAbstractAnimation::Running)
+        d->clock.start();
+}
+
+void QDeclarativeParticlesPainter::updateSize()
+{
+    if (!d->_componentComplete)
+        return;
+
+    const int parentX = parentItem()->x();
+    const int parentY = parentItem()->y();
+    for (int i = 0; i < d->particles.count(); ++i) {
+        const QDeclarativeParticle &particle = d->particles.at(i);
+        if(particle.x > maxX)
+            maxX = particle.x;
+        if(particle.x < minX)
+            minX = particle.x;
+        if(particle.y > maxY)
+            maxY = particle.y;
+        if(particle.y < minY)
+            minY = particle.y;
+    }
+
+    int myWidth = (int)(maxX-minX+0.5)+d->image.width();
+    int myX = (int)(minX - parentX);
+    int myHeight = (int)(maxY-minY+0.5)+d->image.height();
+    int myY = (int)(minY - parentY);
+    setWidth(myWidth);
+    setHeight(myHeight);
+    setX(myX);
+    setY(myY);
+}
+
+void QDeclarativeParticles::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
+{
+    Q_UNUSED(p);
+    //painting is done by the ParticlesPainter, so it can have the right size
+}
+
+void QDeclarativeParticlesPainter::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
+{
+    if (d->image.isNull() || d->particles.isEmpty())
+        return;
+
+    const int myX = x() + parentItem()->x();
+    const int myY = y() + parentItem()->y();
+
+#if (QT_VERSION >= QT_VERSION_CHECK(4,7,0))
+    QVarLengthArray<QPainter::PixmapFragment, 256> pixmapData;
+#else
+    QVarLengthArray<QDrawPixmaps::Data, 256> pixmapData;
+#endif
+    pixmapData.resize(d->particles.count());
+
+    const QRectF sourceRect = d->image.rect();
+    qreal halfPWidth = sourceRect.width()/2.;
+    qreal halfPHeight = sourceRect.height()/2.;
+    for (int i = 0; i < d->particles.count(); ++i) {
+        const QDeclarativeParticle &particle = d->particles.at(i);
+#if (QT_VERSION >= QT_VERSION_CHECK(4,7,0))
+        pixmapData[i].x = particle.x - myX + halfPWidth;
+        pixmapData[i].y = particle.y - myY + halfPHeight;
+#else
+         pixmapData[i].point = QPointF(particle.x - myX + halfPWidth, particle.y - myY + halfPHeight);
+#endif
+        pixmapData[i].opacity = particle.opacity;
+
+        //these never change
+        pixmapData[i].rotation = 0;
+        pixmapData[i].scaleX = 1;
+        pixmapData[i].scaleY = 1;
+#if (QT_VERSION >= QT_VERSION_CHECK(4,7,0))
+        pixmapData[i].sourceLeft = sourceRect.left();
+        pixmapData[i].sourceTop = sourceRect.top();
+        pixmapData[i].width = sourceRect.width();
+        pixmapData[i].height = sourceRect.height();
+#else
+        pixmapData[i].source = sourceRect;
+#endif
+    }
+#if (QT_VERSION >= QT_VERSION_CHECK(4,7,0))
+    p->drawPixmapFragments(pixmapData.data(), d->particles.count(), d->image);
+#else
+    qDrawPixmaps(p, pixmapData.data(), d->particles.count(), d->image);
+#endif
+}
+
+void QDeclarativeParticles::componentComplete()
+{
+    Q_D(QDeclarativeParticles);
+    QDeclarativeItem::componentComplete();
+    if (d->count && d->emissionRate) {
+        d->paintItem->updateSize();
+        d->clock.start();
+    }
+    if (d->lifeSpanDev > d->lifeSpan)
+        d->lifeSpanDev = d->lifeSpan;
+}
+
+QT_END_NAMESPACE
diff --git a/src/imports/particles/qdeclarativeparticles_p.h b/src/imports/particles/qdeclarativeparticles_p.h
new file mode 100644
index 0000000..993796d
--- /dev/null
+++ b/src/imports/particles/qdeclarativeparticles_p.h
@@ -0,0 +1,258 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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 QDECLARATIVEPARTICLES_H
+#define QDECLARATIVEPARTICLES_H
+
+#include <QtDeclarative/qdeclarativeitem.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Declarative)
+
+class QDeclarativeParticle;
+class QDeclarativeParticles;
+class QDeclarativeParticleMotion : public QObject
+{
+    Q_OBJECT
+public:
+    QDeclarativeParticleMotion(QObject *parent=0);
+
+    virtual void advance(QDeclarativeParticle &, int interval);
+    virtual void created(QDeclarativeParticle &);
+    virtual void destroy(QDeclarativeParticle &);
+};
+
+class QDeclarativeParticleMotionLinear : public QDeclarativeParticleMotion
+{
+    Q_OBJECT
+public:
+    QDeclarativeParticleMotionLinear(QObject *parent=0)
+        : QDeclarativeParticleMotion(parent) {}
+
+    virtual void advance(QDeclarativeParticle &, int interval);
+};
+
+class QDeclarativeParticleMotionGravity : public QDeclarativeParticleMotion
+{
+    Q_OBJECT
+
+    Q_PROPERTY(qreal xattractor READ xAttractor WRITE setXAttractor NOTIFY xattractorChanged)
+    Q_PROPERTY(qreal yattractor READ yAttractor WRITE setYAttractor NOTIFY yattractorChanged)
+    Q_PROPERTY(qreal acceleration READ acceleration WRITE setAcceleration NOTIFY accelerationChanged)
+public:
+    QDeclarativeParticleMotionGravity(QObject *parent=0)
+        : QDeclarativeParticleMotion(parent), _xAttr(0.0), _yAttr(0.0), _accel(0.00005) {}
+
+    qreal xAttractor() const { return _xAttr; }
+    void setXAttractor(qreal x);
+
+    qreal yAttractor() const { return _yAttr; }
+    void setYAttractor(qreal y);
+
+    qreal acceleration() const { return _accel * 1000000; }
+    void setAcceleration(qreal accel);
+
+    virtual void advance(QDeclarativeParticle &, int interval);
+
+Q_SIGNALS:
+    void xattractorChanged();
+    void yattractorChanged();
+    void accelerationChanged();
+
+private:
+    qreal _xAttr;
+    qreal _yAttr;
+    qreal _accel;
+};
+
+class QDeclarativeParticleMotionWander : public QDeclarativeParticleMotion
+{
+    Q_OBJECT
+public:
+    QDeclarativeParticleMotionWander()
+        : QDeclarativeParticleMotion(), particles(0), _xvariance(0), _yvariance(0) {}
+
+    virtual void advance(QDeclarativeParticle &, int interval);
+    virtual void created(QDeclarativeParticle &);
+    virtual void destroy(QDeclarativeParticle &);
+
+    struct Data {
+        qreal x_targetV;
+        qreal y_targetV;
+        qreal x_peak;
+        qreal y_peak;
+        qreal x_var;
+        qreal y_var;
+    };
+
+    Q_PROPERTY(qreal xvariance READ xVariance WRITE setXVariance NOTIFY xvarianceChanged)
+    qreal xVariance() const { return _xvariance * 1000.0; }
+    void setXVariance(qreal var);
+
+    Q_PROPERTY(qreal yvariance READ yVariance WRITE setYVariance NOTIFY yvarianceChanged)
+    qreal yVariance() const { return _yvariance * 1000.0; }
+    void setYVariance(qreal var);
+
+    Q_PROPERTY(qreal pace READ pace WRITE setPace NOTIFY paceChanged)
+    qreal pace() const { return _pace * 1000.0; }
+    void setPace(qreal pace);
+
+Q_SIGNALS:
+    void xvarianceChanged();
+    void yvarianceChanged();
+    void paceChanged();
+
+private:
+    QDeclarativeParticles *particles;
+    qreal _xvariance;
+    qreal _yvariance;
+    qreal _pace;
+};
+
+class QDeclarativeParticlesPrivate;
+class QDeclarativeParticles : public QDeclarativeItem
+{
+    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(QDeclarativeParticleMotion *motion READ motion WRITE setMotion NOTIFY motionChanged)
+    Q_CLASSINFO("DefaultProperty", "motion")
+
+public:
+    QDeclarativeParticles(QDeclarativeItem *parent=0);
+    ~QDeclarativeParticles();
+
+    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);
+
+    QDeclarativeParticleMotion *motion() const;
+    void setMotion(QDeclarativeParticleMotion *);
+
+    void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
+
+public Q_SLOTS:
+    void burst(int count, int emissionRate=-1);
+
+protected:
+    virtual void componentComplete();
+
+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();
+    void motionChanged();
+
+private Q_SLOTS:
+    void imageLoaded();
+
+private:
+    Q_DISABLE_COPY(QDeclarativeParticles)
+    Q_DECLARE_PRIVATE_D(QGraphicsItem::d_ptr.data(), QDeclarativeParticles)
+};
+
+QT_END_NAMESPACE
+
+QML_DECLARE_TYPE(QDeclarativeParticleMotion)
+QML_DECLARE_TYPE(QDeclarativeParticleMotionLinear)
+QML_DECLARE_TYPE(QDeclarativeParticleMotionGravity)
+QML_DECLARE_TYPE(QDeclarativeParticleMotionWander)
+QML_DECLARE_TYPE(QDeclarativeParticles)
+
+QT_END_HEADER
+
+#endif
diff --git a/src/imports/particles/qmldir b/src/imports/particles/qmldir
new file mode 100644
index 0000000..15456bb
--- /dev/null
+++ b/src/imports/particles/qmldir
@@ -0,0 +1 @@
+plugin particles