Initial import of statemachine branch from the old kinetic repository

21 files changed, 4295 insertions, 0 deletions

diff --git a/src/corelib/animation/animation.pri b/src/corelib/animation/animation.pri
new file mode 100644
index 0000000..cb7850c
--- /dev/null
+++ b/src/corelib/animation/animation.pri
@@ -0,0 +1,25 @@
+# Qt core animation module
+
+HEADERS += \
+        animation/qabstractanimation.h \
+        animation/qabstractanimation_p.h \
+        animation/qvariantanimation.h \
+        animation/qvariantanimation_p.h \
+        animation/qpropertyanimation.h \
+        animation/qpropertyanimation_p.h \
+        animation/qanimationgroup.h \
+        animation/qanimationgroup_p.h \
+        animation/qsequentialanimationgroup.h \
+        animation/qsequentialanimationgroup_p.h \
+        animation/qparallelanimationgroup.h \
+        animation/qparallelanimationgroup_p.h \
+        animation/qpauseanimation.h
+
+SOURCES += \
+        animation/qabstractanimation.cpp \
+        animation/qvariantanimation.cpp \
+        animation/qpropertyanimation.cpp \
+        animation/qanimationgroup.cpp \
+        animation/qsequentialanimationgroup.cpp \
+        animation/qparallelanimationgroup.cpp \
+        animation/qpauseanimation.cpp
diff --git a/src/corelib/animation/qabstractanimation.cpp b/src/corelib/animation/qabstractanimation.cpp
new file mode 100644
index 0000000..2b9e77d
--- /dev/null
+++ b/src/corelib/animation/qabstractanimation.cpp
@@ -0,0 +1,747 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \class QAbstractAnimation
+    \ingroup animation
+    \brief The QAbstractAnimation class provides an abstract base class for animations.
+    \since 4.5
+    \preliminary
+
+    This class is part of \l{The Animation Framework}. It serves as a base class
+    for standard animations and groups, with functions for shared
+    functionality, and it also makes it easy for you to define custom
+    animations that plug into the rest of the animation framework.
+
+    If you want to create an animation, you should look at the two subclasses,
+    QVariantAnimation and QAnimationGroup, instead.
+
+    QAbstractAnimation provides an interface for the current time and
+    duration, the iteration count, and the state of an animation. These properties
+    define the base functionality common to all animations in Qt. The virtual
+    duration() function returns the local duration of the animation; i.e., for
+    how long the animation should update the current time before
+    looping. Subclasses can implement this function differently; for example,
+    QVariantAnimation returns the duration of a simple animated property, whereas
+    QAnimationGroup returns the duration of a set or sequence of
+    animations. You can also set a loop count by calling setIterationCount(); a
+    iteration count of 2 will let the animation run twice (the default value is
+    1).
+
+    Like QTimeLine, QAbstractAnimation also provides an interface for starting
+    and stopping an animation, and for tracking its progress. You can call the
+    start() slot to start the animation. When the animation starts, the
+    stateChanged() signal is emitted, and state() returns Running. If you call the
+    stop() slot, the stateChanged() signal is emitted, and state() returns
+    Stopped. If you call the pause() slot, the stateChanged() signal is emitted
+    and state() returns Paused. If the animation reaches the end, the finished()
+    signal is emitted. You can check the current state by calling state().
+
+    QAbstractAnimation provides two functions that are pure virtual, and must
+    be reimplemented in a subclass: duration(), and updateCurrentTime(). The
+    duration() function lets you report a duration for the animation (a return
+    value of -1 signals that the animation runs forever until explicitly
+    stopped). The current time is delivered by the framework through calls to
+    updateCurrentTime(). By reimplementing this function, you can track the
+    animation progress and update your target objects accordingly. By
+    reimplementing updateState(), you can track the animation's state
+    changes, which is particularily useful for animations that are not driven
+    by time.
+
+    \sa QVariantAnimation, QAnimationGroup, {The Animation Framework}
+*/
+
+/*!
+    \enum QAbstractAnimation::DeletionPolicy
+
+    \value KeepWhenStopped The animation will not be deleted when stopped.
+    \value DeleteWhenStopped The animation will be automatically deleted when
+    stopped.
+*/
+
+/*!
+    \fn QAbstractAnimation::finished()
+
+    QAbstractAnimation emits this signal after the animation has stopped and
+    has reached the end.
+
+    This signal is emitted after stateChanged().
+
+    \sa stateChanged()
+*/
+
+/*!
+    \fn QAbstractAnimation::stateChanged(QAbstractAnimation::State oldState, QAbstractAnimation::State newState)
+
+    QAbstractAnimation emits this signal whenever the state of the animation has
+    changed from \a oldState to \a newState. This signal is emitted after the virtual
+    updateState() function is called.
+
+    \sa updateState()
+*/
+
+/*!
+    \fn QAbstractAnimation::currentIterationChanged(int currentIteration)
+
+    QAbstractAnimation emits this signal whenever the current iteration
+    changes. \a currentIteration is the current iteration.
+
+    \sa currentIteration(), iterationCount()
+*/
+
+/*!
+    \fn QAbstractAnimation::directionChanged(QAbstractAnimation::Direction newDirection);
+
+    QAbstractAnimation emits this signal whenever the direction has been
+    changed. \a newDirection is the new direction.
+
+    \sa direction
+*/
+
+#ifndef QT_NO_ANIMATION
+
+#include "qabstractanimation.h"
+#include "qanimationgroup.h"
+#include <QtCore/qdebug.h>
+
+#include "qabstractanimation_p.h"
+
+#include <QtCore/qmath.h>
+#include <QtCore/qthreadstorage.h>
+#include <QtCore/qcoreevent.h>
+#include <QtCore/qpointer.h>
+
+#define TIMER_INTERVAL 16
+
+QT_BEGIN_NAMESPACE
+
+Q_GLOBAL_STATIC(QThreadStorage<QUnifiedTimer *>, unifiedTimer);
+
+QUnifiedTimer::QUnifiedTimer() : QObject(), lastTick(0)
+{
+}
+
+QUnifiedTimer *QUnifiedTimer::instance()
+{
+    QUnifiedTimer *inst;
+    if (!unifiedTimer()->hasLocalData()) {
+        inst = new QUnifiedTimer;
+        unifiedTimer()->setLocalData(inst);
+    } else {
+        inst = unifiedTimer()->localData();
+    }
+    return inst;
+}
+
+void QUnifiedTimer::updateRecentlyStartedAnimations()
+{
+    if (animationsToStart.isEmpty())
+        return;
+
+    animations += animationsToStart;
+    updateTimer(); //we make sure we start the timer there
+
+    animationsToStart.clear();
+}
+
+void QUnifiedTimer::timerEvent(QTimerEvent *event)
+{
+    //this is simply the time we last received a tick
+    int oldLastTick = lastTick;
+    if (time.isValid())
+        lastTick = time.elapsed();
+
+    //we transfer the waiting animations into the "really running" state
+    updateRecentlyStartedAnimations();
+
+    if (event->timerId() == startStopAnimationTimer.timerId()) {
+        startStopAnimationTimer.stop();
+        if (animations.isEmpty()) {
+            animationTimer.stop();
+            time = QTime();
+        } else {
+            animationTimer.start(TIMER_INTERVAL, this);
+            lastTick = 0;
+            time.start();
+        }
+    } else if (event->timerId() == animationTimer.timerId()) {
+        const int delta = lastTick - oldLastTick;
+        for (int i = 0; i < animations.count(); ++i) {
+            QAbstractAnimation *animation = animations.at(i);
+            int elapsed = QAbstractAnimationPrivate::get(animation)->totalCurrentTime
+                + (animation->direction() == QAbstractAnimation::Forward ? delta : -delta);
+            animation->setCurrentTime(elapsed);
+        }
+    }
+}
+
+void QUnifiedTimer::updateTimer()
+{
+    //we delay the call to start and stop for the animation timer so that if you
+    //stop and start animations in batch you don't stop/start the timer too often.
+    if (!startStopAnimationTimer.isActive())
+        startStopAnimationTimer.start(0, this); // we delay the actual start of the animation
+}
+
+void QUnifiedTimer::registerAnimation(QAbstractAnimation *animation)
+{
+    if (animations.contains(animation) ||animationsToStart.contains(animation))
+        return;
+    animationsToStart << animation;
+    updateTimer();
+}
+
+void QUnifiedTimer::unregisterAnimation(QAbstractAnimation *animation)
+{
+    animations.removeAll(animation);
+    animationsToStart.removeAll(animation);
+    updateTimer();
+}
+
+
+void QAbstractAnimationPrivate::setState(QAbstractAnimation::State newState)
+{
+    Q_Q(QAbstractAnimation);
+    if (state == newState)
+        return;
+
+    QAbstractAnimation::State oldState = state;
+    int oldCurrentTime = currentTime;
+    int oldCurrentIteration = currentIteration;
+    QAbstractAnimation::Direction oldDirection = direction;
+
+    state = newState;
+
+    QPointer<QAbstractAnimation> guard(q);
+
+    guard->updateState(oldState, newState);
+
+    //this is to be safe if updateState changes the state
+    if (state == oldState)
+        return;
+
+    // Notify state change
+    if (guard)
+        emit guard->stateChanged(oldState, newState);
+
+    // Enter running state.
+    switch (state)
+    {
+    case QAbstractAnimation::Paused:
+    case QAbstractAnimation::Running:
+        {
+            // Rewind
+            if (oldState == QAbstractAnimation::Stopped) {
+                if (guard) {
+                    if (direction == QAbstractAnimation::Forward)
+                        q->setCurrentTime(0);
+                    else
+                        q->setCurrentTime(iterationCount == -1 ? q->duration() : q->totalDuration());
+                }
+
+                // Check if the setCurrentTime() function called stop().
+                // This can happen for a 0-duration animation
+                if (state == QAbstractAnimation::Stopped)
+                    return;
+            }
+
+            // Register timer if our parent is not running.
+            if (state == QAbstractAnimation::Running && guard) {
+                if (!group || group->state() == QAbstractAnimation::Stopped) {
+                    QUnifiedTimer::instance()->registerAnimation(q);
+                }
+            } else {
+                //new state is paused
+                QUnifiedTimer::instance()->unregisterAnimation(q);
+            }
+        }
+        break;
+    case QAbstractAnimation::Stopped:
+        // Leave running state.
+        int dura = q->duration();
+        if (deleteWhenStopped && guard)
+            q->deleteLater();
+
+        QUnifiedTimer::instance()->unregisterAnimation(q);
+
+        if (dura == -1 || iterationCount < 0
+            || (oldDirection == QAbstractAnimation::Forward && (oldCurrentTime * (oldCurrentIteration + 1)) == (dura * iterationCount))
+            || (oldDirection == QAbstractAnimation::Backward && oldCurrentTime == 0)) {
+                if (guard)
+                    emit q->finished();
+        }
+        break;
+    }
+
+}
+
+/*!
+    Constructs the QAbstractAnimation base class, and passes \a parent to
+    QObject's constructor.
+
+    \sa QVariantAnimation, QAnimationGroup
+*/
+#ifdef QT_EXPERIMENTAL_SOLUTION
+QAbstractAnimation::QAbstractAnimation(QObject *parent)
+    : d_ptr(new QAbstractAnimationPrivate)
+{
+    // Allow auto-add on reparent
+    setParent(parent);
+    d_ptr->q_ptr = this;
+}
+#else
+QAbstractAnimation::QAbstractAnimation(QObject *parent)
+    : QObject(*new QAbstractAnimationPrivate, 0)
+{
+    // Allow auto-add on reparent
+    setParent(parent);
+}
+#endif
+
+/*!
+    \internal
+*/
+#ifdef QT_EXPERIMENTAL_SOLUTION
+QAbstractAnimation::QAbstractAnimation(QAbstractAnimationPrivate &dd, QObject *parent)
+    : d_ptr(&dd)
+{
+    // Allow auto-add on reparent
+   setParent(parent);
+   d_ptr->q_ptr = this;
+}
+#else
+QAbstractAnimation::QAbstractAnimation(QAbstractAnimationPrivate &dd, QObject *parent)
+    : QObject(dd, 0)
+{
+    // Allow auto-add on reparent
+   setParent(parent);
+}
+#endif
+
+/*!
+    Stops the animation if it's running, then destroys the
+    QAbstractAnimation. If the animation is part of a QAnimationGroup, it is
+    automatically removed before it's destroyed.
+*/
+QAbstractAnimation::~QAbstractAnimation()
+{
+    Q_D(QAbstractAnimation);
+    //we can't call stop here. Otherwise we get pure virtual calls
+    if (d->state != Stopped) {
+        QAbstractAnimation::State oldState = d->state;
+        d->state = Stopped;
+        emit stateChanged(oldState, d->state);
+        QUnifiedTimer::instance()->unregisterAnimation(this);
+    }
+}
+
+/*!
+    \property QAbstractAnimation::state
+    \brief state of the animation.
+
+    This property describes the current state of the animation. When the
+    animation state changes, QAbstractAnimation emits the stateChanged()
+    signal.
+*/
+QAbstractAnimation::State QAbstractAnimation::state() const
+{
+    Q_D(const QAbstractAnimation);
+    return d->state;
+}
+
+/*!
+    If this animation is part of a QAnimationGroup, this function returns a
+    pointer to the group; otherwise, it returns 0.
+
+    \sa QAnimationGroup::addAnimation()
+*/
+QAnimationGroup *QAbstractAnimation::group() const
+{
+    Q_D(const QAbstractAnimation);
+    return d->group;
+}
+
+/*!
+    \enum QAbstractAnimation::State
+
+    This enum describes the state of the animation.
+
+    \value Stopped The animation is not running. This is the initial state
+    of QAbstractAnimation, and the state QAbstractAnimation reenters when finished. The current
+    time remain unchanged until either setCurrentTime() is
+    called, or the animation is started by calling start().
+
+    \value Paused The animation is paused (i.e., temporarily
+    suspended). Calling resume() will resume animation activity.
+
+    \value Running The animation is running. While control is in the event
+    loop, QAbstractAnimation will update its current time at regular intervals,
+    calling updateCurrentTime() when appropriate.
+
+    \sa state(), stateChanged()
+*/
+
+/*!
+    \enum QAbstractAnimation::Direction
+
+    This enum describes the direction of the animation when in \l Running state.
+
+    \value Forward The current time of the animation increases with time (i.e.,
+    moves from 0 and towards the end / duration).
+
+    \value Backward The current time of the animation decreases with time (i.e.,
+    moves from the end / duration and towards 0).
+
+    \sa direction
+*/
+
+/*!
+    \property QAbstractAnimation::direction
+    \brief the direction of the animation when it is in \l Running
+    state.
+
+    This direction indicates whether the time moves from 0 towards the
+    animation duration, or from the value of the duration and towards 0 after
+    start() has been called.
+
+    By default, this property is set to \l Forward.
+*/
+QAbstractAnimation::Direction QAbstractAnimation::direction() const
+{
+    Q_D(const QAbstractAnimation);
+    return d->direction;
+}
+void QAbstractAnimation::setDirection(Direction direction)
+{
+    Q_D(QAbstractAnimation);
+    if (d->direction == direction)
+        return;
+
+    d->direction = direction;
+    if (state() == Stopped) {
+        if (direction == Backward) {
+            d->currentTime = duration();
+            d->currentIteration = d->iterationCount - 1;
+        } else {
+            d->currentTime = 0;
+            d->currentIteration = 0;
+        }
+    }
+    updateDirection(direction);
+    emit directionChanged(direction);
+}
+
+/*!
+    \property QAbstractAnimation::duration
+    \brief the duration of the animation.
+
+    If the duration is -1, it means that the duration is undefined.
+    In this case, iterationCount is ignored.
+*/
+
+/*!
+    \property QAbstractAnimation::iterationCount
+    \brief the iteration count of the animation
+
+    This property describes the iteration count of the animation as an integer.
+    By default this value is 1, indicating that the animation
+    should run once only, and then stop. By changing it you can let the
+    animation loop several times. With a value of 0, the animation will not
+    run at all, and with a value of -1, the animation will loop forever
+    until stopped.
+    It is not supported to have loop on an animation that has an undefined
+    duration. It will only run once.
+*/
+int QAbstractAnimation::iterationCount() const
+{
+    Q_D(const QAbstractAnimation);
+    return d->iterationCount;
+}
+void QAbstractAnimation::setIterationCount(int iterationCount)
+{
+    Q_D(QAbstractAnimation);
+    d->iterationCount = iterationCount;
+}
+
+/*!
+    \property QAbstractAnimation::currentIteration
+    \brief the current iteration of the animation
+
+    This property describes the current iteration of the animation. By default,
+    the animation's iteration count is 1, and so the current iteration will
+    always be 0. If the iteration count is 2 and the animation runs past its
+    duration, it will automatically rewind and restart at current time 0, and
+    current iteration 1, and so on.
+
+    When the current iteration changes, QAbstractAnimation emits the
+    currentIterationChanged() signal.
+*/
+int QAbstractAnimation::currentIteration() const
+{
+    Q_D(const QAbstractAnimation);
+    return d->currentIteration;
+}
+
+/*!
+    \fn virtual int QAbstractAnimation::duration() const = 0
+
+    This pure virtual function returns the duration of the animation, and
+    defines for how long QAbstractAnimation should update the current
+    time. This duration is local, and does not include the iteration count.
+
+    A return value of -1 indicates that the animation has no defined duration;
+    the animation should run forever until stopped. This is useful for
+    animations that are not time driven, or where you cannot easily predict
+    its duration (e.g., event driven audio playback in a game).
+
+    If the animation is a parallel QAnimationGroup, the duration will be the longest
+    duration of all its animations. If the animation is a sequential QAnimationGroup,
+    the duration will be the sum of the duration of all its animations.
+    \sa iterationCount
+*/
+
+/*!
+    Returns the total and effective duration of the animation, including the
+    iteration count.
+
+    \sa duration(), currentTime
+*/
+int QAbstractAnimation::totalDuration() const
+{
+    Q_D(const QAbstractAnimation);
+    if (d->iterationCount < 0)
+        return -1;
+    int dura = duration();
+    if (dura == -1)
+        return -1;
+    return dura * d->iterationCount;
+}
+
+/*!
+    \property QAbstractAnimation::currentTime
+    \brief the current time and progress of the animation
+
+    This property describes the animation's current time. You can change the
+    current time by calling setCurrentTime, or you can call start() and let
+    the animation run, setting the current time automatically as the animation
+    progresses.
+
+    The animation's current time starts at 0, and ends at duration(). If the
+    animation's iterationCount is larger than 1, the current time will rewind and
+    start at 0 again for the consecutive loops. If the animation has a pause.
+    currentTime will also include the duration of the pause.
+
+    \sa iterationCount
+ */
+int QAbstractAnimation::currentTime() const
+{
+    Q_D(const QAbstractAnimation);
+    return d->currentTime;
+}
+void QAbstractAnimation::setCurrentTime(int msecs)
+{
+    Q_D(QAbstractAnimation);
+    msecs = qMax(msecs, 0);
+
+    // Calculate new time and loop.
+    int dura = duration();
+    int totalDura = (d->iterationCount < 0 || dura == -1) ? -1 : dura * d->iterationCount;
+    if (totalDura != -1)
+        msecs = qMin(totalDura, msecs);
+    d->totalCurrentTime = msecs;
+
+    // Update new values.
+    int oldLoop = d->currentIteration;
+    d->currentIteration = ((dura <= 0) ? 0 : (msecs / dura));
+    if (d->currentIteration == d->iterationCount) {
+        //we're at the end
+        d->currentTime = qMax(0, dura);
+        d->currentIteration = qMax(0, d->iterationCount - 1);
+    } else {
+        if (d->direction == Forward) {
+            d->currentTime = (dura <= 0) ? msecs : (msecs % dura);
+        } else {
+            d->currentTime = (dura <= 0) ? msecs : ((msecs - 1) % dura) + 1;
+            if (d->currentTime == dura)
+                --d->currentIteration;
+        }
+    }
+
+    updateCurrentTime(msecs);
+    if (d->currentIteration != oldLoop)
+        emit currentIterationChanged(d->currentIteration);
+
+    // All animations are responsible for stopping the animation when their
+    // own end state is reached; in this case the animation is time driven,
+    // and has reached the end.
+    if ((d->direction == Forward && d->totalCurrentTime == totalDura)
+        || (d->direction == Backward && d->totalCurrentTime == 0)) {
+        stop();
+    }
+}
+
+/*!
+    Starts the animation. The \a policy argument says whether or not the
+    animation should be deleted when it's done. When the animation starts, the
+    stateChanged() signal is emitted, and state() returns Running. When control
+    reaches the event loop, the animation will run by itself, periodically
+    calling updateCurrentTime() as the animation progresses.
+
+    If the animation is currently stopped or has already reached the end,
+    calling start() will rewind the animation and start again from the beginning.
+    When the animation reaches the end, the animation will either stop, or
+    if the loop level is more than 1, it will rewind and continue from the beginning.
+
+    If the animation is already running, this function does nothing.
+
+    \sa stop(), state()
+*/
+void QAbstractAnimation::start(DeletionPolicy policy)
+{
+    Q_D(QAbstractAnimation);
+    if (d->state == Running)
+        return;
+    d->setState(Running);
+    d->deleteWhenStopped = policy;
+}
+
+/*!
+    Stops the animation. When the animation is stopped, it emits the stateChanged()
+    signal, and state() returns Stopped. The current time is not changed.
+
+    If the animation stops by itself after reaching the end (i.e.,
+    currentTime() == duration() and currentIteration() > iterationCount() - 1), the
+    finished() signal is emitted.
+
+    \sa start(), state()
+ */
+void QAbstractAnimation::stop()
+{
+    Q_D(QAbstractAnimation);
+
+    d->setState(Stopped);
+}
+
+/*!
+    Pauses the animation. When the animation is paused, state() returns Paused.
+    The currenttime will remain unchanged until resume() or start() is called.
+    If you want to continue from the current time, call resume().
+
+
+    \sa start(), state(), resume()
+ */
+void QAbstractAnimation::pause()
+{
+    Q_D(QAbstractAnimation);
+    if (d->state == Stopped) {
+        qWarning("QAbstractAnimation::pause: Cannot pause a stopped animation");
+        return;
+    }
+
+    d->setState(Paused);
+}
+
+/*!
+    Resumes the animation after it was paused. When the animation is resumed,
+    it emits the resumed() and stateChanged() signals. The currenttime is not
+    changed.
+
+    \sa start(), pause(), state()
+ */
+void QAbstractAnimation::resume()
+{
+    Q_D(QAbstractAnimation);
+    if (d->state != Paused) {
+        qWarning("QAbstractAnimation::resume: "
+                 "Cannot resume an animation that is not paused");
+        return;
+    }
+
+    d->setState(Running);
+}
+
+/*!
+    \reimp
+*/
+bool QAbstractAnimation::event(QEvent *event)
+{
+    return QObject::event(event);
+}
+
+/*!
+    \fn virtual void QAbstractAnimation::updateCurrentTime(int msecs) = 0;
+
+    This pure virtual function is called every time the animation's current
+    time changes. The \a msecs argument is the current time.
+
+    \sa updateState()
+*/
+
+/*!
+    This virtual function is called by QAbstractAnimation when the state
+    of the animation is changed from \a oldState to \a newState.
+
+    \sa start(), stop(), pause(), resume()
+*/
+void QAbstractAnimation::updateState(QAbstractAnimation::State oldState,
+                                     QAbstractAnimation::State newState)
+{
+    Q_UNUSED(oldState);
+    Q_UNUSED(newState);
+}
+
+/*!
+    This virtual function is called by QAbstractAnimation when the direction
+    of the animation is changed. The \a direction argument is the new direction.
+
+    \sa setDirection(), direction()
+*/
+void QAbstractAnimation::updateDirection(QAbstractAnimation::Direction direction)
+{
+    Q_UNUSED(direction);
+}
+
+
+QT_END_NAMESPACE
+
+#include "moc_qabstractanimation.cpp"
+
+#endif //QT_NO_ANIMATION
diff --git a/src/corelib/animation/qabstractanimation.h b/src/corelib/animation/qabstractanimation.h
new file mode 100644
index 0000000..d6260cd
--- /dev/null
+++ b/src/corelib/animation/qabstractanimation.h
@@ -0,0 +1,141 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QABSTRACTANIMATION_H
+#define QABSTRACTANIMATION_H
+
+#include <QtCore/qobject.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+#ifndef QT_NO_ANIMATION
+
+class QAnimationGroup;
+class QSequentialAnimationGroup;
+
+class QAbstractAnimationPrivate;
+class Q_CORE_EXPORT QAbstractAnimation : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(State state READ state NOTIFY stateChanged)
+    Q_PROPERTY(int iterationCount READ iterationCount WRITE setIterationCount)
+    Q_PROPERTY(int currentTime READ currentTime WRITE setCurrentTime)
+    Q_PROPERTY(int currentIteration READ currentIteration NOTIFY currentIterationChanged)
+    Q_PROPERTY(Direction direction READ direction WRITE setDirection NOTIFY directionChanged)
+    Q_PROPERTY(int duration READ duration)
+
+public:
+    enum Direction {
+        Forward,
+        Backward
+    };
+
+    enum State {
+        Stopped,
+        Paused,
+        Running
+    };
+
+    enum DeletionPolicy {
+        KeepWhenStopped = 0,
+        DeleteWhenStopped
+    };
+
+    QAbstractAnimation(QObject *parent = 0);
+    virtual ~QAbstractAnimation();
+
+    State state() const;
+
+    QAnimationGroup *group() const;
+
+    Direction direction() const;
+    void setDirection(Direction direction);
+
+    int iterationCount() const;
+    void setIterationCount(int iterationCount);
+    int currentIteration() const;
+
+    virtual int duration() const = 0;
+    int totalDuration() const;
+
+    int currentTime() const;
+
+Q_SIGNALS:
+    void finished();
+    void stateChanged(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);
+    void currentIterationChanged(int currentIteration);
+    void directionChanged(QAbstractAnimation::Direction);
+
+public Q_SLOTS:
+    void start(QAbstractAnimation::DeletionPolicy policy = KeepWhenStopped);
+    void pause();
+    void resume();
+    void stop();
+    void setCurrentTime(int msecs);
+
+protected:
+    QAbstractAnimation(QAbstractAnimationPrivate &dd, QObject *parent = 0);
+    bool event(QEvent *event);
+
+    virtual void updateCurrentTime(int msecs) = 0;
+    virtual void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);
+    virtual void updateDirection(QAbstractAnimation::Direction direction);
+
+#ifdef QT_EXPERIMENTAL_SOLUTION
+     QAbstractAnimationPrivate *d_ptr;
+#endif
+
+private:
+    Q_DISABLE_COPY(QAbstractAnimation)
+    Q_DECLARE_PRIVATE(QAbstractAnimation)
+};
+
+#endif //QT_NO_ANIMATION
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QABSTRACTANIMATION_H
diff --git a/src/corelib/animation/qabstractanimation_p.h b/src/corelib/animation/qabstractanimation_p.h
new file mode 100644
index 0000000..28d7d71
--- /dev/null
+++ b/src/corelib/animation/qabstractanimation_p.h
@@ -0,0 +1,137 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QABSTRACTANIMATION_P_H
+#define QABSTRACTANIMATION_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of QIODevice. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qbasictimer.h>
+#include <QtCore/qdatetime.h>
+#include <QtCore/qtimer.h>
+#ifndef QT_EXPERIMENTAL_SOLUTION
+#include <private/qobject_p.h>
+#endif
+
+QT_BEGIN_NAMESPACE
+
+class QAnimationGroup;
+class QAbstractAnimation;
+#ifdef QT_EXPERIMENTAL_SOLUTION
+class QAbstractAnimationPrivate
+#else
+class QAbstractAnimationPrivate : public QObjectPrivate
+#endif
+{
+public:
+    QAbstractAnimationPrivate()
+        : state(QAbstractAnimation::Stopped),
+          direction(QAbstractAnimation::Forward),
+          deleteWhenStopped(false),
+          totalCurrentTime(0),
+          currentTime(0),
+          iterationCount(1),
+          currentIteration(0),
+          group(0)
+    {
+    }
+
+    virtual ~QAbstractAnimationPrivate() {}
+
+    static QAbstractAnimationPrivate *get(QAbstractAnimation *q)
+    {
+        return q->d_func();
+    }
+
+    QAbstractAnimation::State state;
+    QAbstractAnimation::Direction direction;
+    bool deleteWhenStopped;
+    void setState(QAbstractAnimation::State state);
+
+    int totalCurrentTime;
+    int currentTime;
+    int iterationCount;
+    int currentIteration;
+
+    QAnimationGroup *group;
+#ifdef QT_EXPERIMENTAL_SOLUTION
+    QAbstractAnimation *q_ptr;
+#endif
+
+private:
+    Q_DECLARE_PUBLIC(QAbstractAnimation)
+};
+
+
+class QUnifiedTimer : public QObject
+{
+private:
+    QUnifiedTimer();
+
+public:
+    static QUnifiedTimer *instance();
+
+    void timerEvent(QTimerEvent *);
+    void updateTimer();
+    void registerAnimation(QAbstractAnimation *animation);
+    void unregisterAnimation(QAbstractAnimation *animation);
+
+
+private:
+    void updateRecentlyStartedAnimations();
+
+    QBasicTimer animationTimer, startStopAnimationTimer;
+    QTime time;
+    int lastTick;
+    QList<QAbstractAnimation*> animations, animationsToStart;
+};
+
+QT_END_NAMESPACE
+#endif
diff --git a/src/corelib/animation/qanimationgroup.cpp b/src/corelib/animation/qanimationgroup.cpp
new file mode 100644
index 0000000..f39738b
--- /dev/null
+++ b/src/corelib/animation/qanimationgroup.cpp
@@ -0,0 +1,274 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \class QAnimationGroup
+    \brief The QAnimationGroup is an abstract base class for group of animations.
+    \since 4.5
+    \ingroup animation
+    \preliminary
+
+    QAnimationGroup represents a group of animations, such as parallel or sequential,
+    and lets you combine different animations into one. The group manages any animation
+    that inherits QAbstractAnimation. By combining groups, you can easily construct
+    complex animation graphs.
+
+    The QAnimationGroup base class provides methods for adding and retrieving animations.
+    Besides that, you can remove animations by calling remove(), and clear the animation
+    group by calling clearAnimations(). You may keep track of changes in the group's animations by
+    listening to QEvent::ChildAdded and QEvent::ChildRemoved events.
+
+    QAnimationGroup takes ownership of the animations it manages, and ensures that they are
+    deleted when the animation group is deleted.
+
+    \sa QAbstractAnimation, QVariantAnimation, {The Animation Framework}
+*/
+
+#ifndef QT_NO_ANIMATION
+
+#include "qanimationgroup.h"
+#include <QtCore/qdebug.h>
+#include <QtCore/qcoreevent.h>
+#include "qanimationgroup_p.h"
+
+QT_BEGIN_NAMESPACE
+
+
+/*!
+    Constructs a QAnimationGroup.
+    \a parent is passed to QObject's constructor.
+*/
+QAnimationGroup::QAnimationGroup(QObject *parent)
+    : QAbstractAnimation(*new QAnimationGroupPrivate, parent)
+{
+}
+
+/*!
+    \internal
+*/
+QAnimationGroup::QAnimationGroup(QAnimationGroupPrivate &dd, QObject *parent)
+    : QAbstractAnimation(dd, parent)
+{
+}
+
+/*!
+    Destroys the animation group. It will also destroy all its animations.
+*/
+QAnimationGroup::~QAnimationGroup()
+{
+}
+
+/*!
+    Returns a pointer to the animation at \a index in this group. This
+    function is useful when you need access to a particular animation.  \a
+    index is between 0 and animationCount() - 1.
+
+    \sa animationCount(), indexOfAnimation()
+*/
+QAbstractAnimation *QAnimationGroup::animationAt(int index) const
+{
+    Q_D(const QAnimationGroup);
+
+    if (index < 0 || index >= d->animations.size()) {
+        qWarning("QAnimationGroup::animationAt: index is out of bounds");
+        return 0;
+    }
+
+    return d->animations.at(index);
+}
+
+
+/*!
+    Returns the number of animations managed by this group.
+
+    \sa indexOfAnimation(), addAnimation(), animationAt()
+*/
+int QAnimationGroup::animationCount() const
+{
+    Q_D(const QAnimationGroup);
+    return d->animations.size();
+}
+
+/*!
+    Returns the index of \a animation. The returned index can be passed
+    to the other functions that take an index as an argument.
+
+    \sa insertAnimationAt() animationAt(), takeAnimationAt()
+*/
+int QAnimationGroup::indexOfAnimation(QAbstractAnimation *animation) const
+{
+    Q_D(const QAnimationGroup);
+    return d->animations.indexOf(animation);
+}
+
+/*!
+    Adds \a animation to this group. This will call insertAnimationAt with
+    index equals to animationCount()
+*/
+void QAnimationGroup::addAnimation(QAbstractAnimation *animation)
+{
+    Q_D(QAnimationGroup);
+    insertAnimationAt(d->animations.count(), animation);
+}
+
+/*!
+    Inserts \a animation into this animation group at \a index.
+    If \a index is 0 the animation is inserted at the beginning.
+    If \a index is animationCount(), the animation is inserted at the end.
+    \sa takeAnimationAt(), addAnimation(), indexOfAnimation()
+*/
+void QAnimationGroup::insertAnimationAt(int index, QAbstractAnimation *animation)
+{
+    Q_D(QAnimationGroup);
+
+    if (index < 0 || index > d->animations.size()) {
+        qWarning("QAnimationGroup::insertAnimationAt: index is out of bounds");
+        return;
+    }
+
+    d->animations.insert(index, animation);
+    if (QAnimationGroup *oldGroup = animation->group())
+        oldGroup->removeAnimation(animation);
+    QAbstractAnimationPrivate::get(animation)->group = this;
+    // this will make sure that ChildAdded event is sent to 'this'
+    animation->setParent(this);
+    d->animationInsertedAt(index);
+}
+
+/*!
+    Removes \a animation from this group. The ownership of \a animation is
+    transferred to the caller.
+
+    \sa takeAnimationAt(), insertAnimationAt(), addAnimation()
+*/
+void QAnimationGroup::removeAnimation(QAbstractAnimation *animation)
+{
+    Q_D(QAnimationGroup);
+
+    if (!animation) {
+        qWarning("QAnimationGroup::remove: cannot remove null animation");
+        return;
+    }
+    int index = d->animations.indexOf(animation);
+    if (index == -1) {
+        qWarning("QAnimationGroup::remove: animation is not part of this group");
+        return;
+    }
+
+    takeAnimationAt(index);
+}
+
+/*!
+    Removes the animation at \a index from this animation group. The ownership
+    of the animation is transferred to the caller, and a pointer to the removed
+    animation is returned.
+
+    \sa addAnimation()
+*/
+QAbstractAnimation *QAnimationGroup::takeAnimationAt(int index)
+{
+    Q_D(QAnimationGroup);
+    if (index < 0 || index >= d->animations.size()) {
+        qWarning("QAnimationGroup::takeAnimationAt: no animation at index %d", index);
+        return 0;
+    }
+    QAbstractAnimation *animation = d->animations.at(index);
+    QAbstractAnimationPrivate::get(animation)->group = 0;
+    // ### removing from list before doing setParent to avoid inifinite recursion
+    // in ChildRemoved event
+    d->animations.removeAt(index);
+    animation->setParent(0);
+    d->animationRemovedAt(index);
+    return animation;
+}
+
+/*!
+    Removes and deletes all animations in this animation group, and resets the current
+    time to 0.
+
+    \sa addAnimation(), removeAnimation()
+*/
+void QAnimationGroup::clearAnimations()
+{
+    Q_D(QAnimationGroup);
+    qDeleteAll(d->animations);
+}
+
+/*!
+    \reimp
+*/
+bool QAnimationGroup::event(QEvent *event)
+{
+    Q_D(QAnimationGroup);
+    if (event->type() == QEvent::ChildAdded) {
+        QChildEvent *childEvent = static_cast<QChildEvent *>(event);
+        if (QAbstractAnimation *a = qobject_cast<QAbstractAnimation *>(childEvent->child())) {
+            if (a->group() != this)
+                addAnimation(a);
+        }
+    } else if (event->type() == QEvent::ChildRemoved) {
+        QChildEvent *childEvent = static_cast<QChildEvent *>(event);
+        QAbstractAnimation *a = static_cast<QAbstractAnimation *>(childEvent->child());
+        // You can only rely on the child being a QObject because in the QEvent::ChildRemoved
+        // case it might be called from the destructor.
+        int index = d->animations.indexOf(a);
+        if (index != -1)
+            takeAnimationAt(index);
+    }
+    return QAbstractAnimation::event(event);
+}
+
+
+void QAnimationGroupPrivate::animationRemovedAt(int index)
+{
+    Q_Q(QAnimationGroup);
+    Q_UNUSED(index);
+    if (animations.isEmpty()) {
+        currentTime = 0;
+        q->stop();
+    }
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qanimationgroup.cpp"
+
+#endif //QT_NO_ANIMATION
diff --git a/src/corelib/animation/qanimationgroup.h b/src/corelib/animation/qanimationgroup.h
new file mode 100644
index 0000000..7dee070
--- /dev/null
+++ b/src/corelib/animation/qanimationgroup.h
@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QANIMATIONGROUP_H
+#define QANIMATIONGROUP_H
+
+#if defined(QT_EXPERIMENTAL_SOLUTION)
+# include "qabstractanimation.h"
+#else
+# include <QtCore/qabstractanimation.h>
+#endif
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+#ifndef QT_NO_ANIMATION
+
+class QAnimationGroupPrivate;
+class Q_CORE_EXPORT QAnimationGroup : public QAbstractAnimation
+{
+    Q_OBJECT
+
+public:
+    QAnimationGroup(QObject *parent = 0);
+    ~QAnimationGroup();
+
+    QAbstractAnimation *animationAt(int index) const;
+    int animationCount() const;
+    int indexOfAnimation(QAbstractAnimation *animation) const;
+    void addAnimation(QAbstractAnimation *animation);
+    void insertAnimationAt(int index, QAbstractAnimation *animation);
+    void removeAnimation(QAbstractAnimation *animation);
+    QAbstractAnimation *takeAnimationAt(int index);
+    void clearAnimations();
+
+protected:
+    QAnimationGroup(QAnimationGroupPrivate &dd, QObject *parent);
+    bool event(QEvent *event);
+
+private:
+    Q_DISABLE_COPY(QAnimationGroup)
+    Q_DECLARE_PRIVATE(QAnimationGroup)
+};
+
+#endif //QT_NO_ANIMATION
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif //QANIMATIONGROUP_H
diff --git a/src/corelib/animation/qanimationgroup_p.h b/src/corelib/animation/qanimationgroup_p.h
new file mode 100644
index 0000000..a7bd0fa
--- /dev/null
+++ b/src/corelib/animation/qanimationgroup_p.h
@@ -0,0 +1,79 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QANIMATIONGROUP_P_H
+#define QANIMATIONGROUP_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of QIODevice. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qanimationgroup.h"
+
+#include <QtCore/qlist.h>
+
+#include "qabstractanimation_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QAnimationGroupPrivate : public QAbstractAnimationPrivate
+{
+    Q_DECLARE_PUBLIC(QAnimationGroup)
+public:
+    QAnimationGroupPrivate()
+    { }
+
+    virtual void animationInsertedAt(int index) { Q_UNUSED(index) };
+    virtual void animationRemovedAt(int index);
+
+    QList<QAbstractAnimation *> animations;
+};
+
+QT_END_NAMESPACE
+
+#endif //QANIMATIONGROUP_P_H
diff --git a/src/corelib/animation/qparallelanimationgroup.cpp b/src/corelib/animation/qparallelanimationgroup.cpp
new file mode 100644
index 0000000..993c577
--- /dev/null
+++ b/src/corelib/animation/qparallelanimationgroup.cpp
@@ -0,0 +1,298 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \class QParallelAnimationGroup
+    \brief The QParallelAnimationGroup class provides a parallel group of animations.
+    \since 4.5
+    \ingroup animation
+    \preliminary
+
+    The animations are all started at the same time, and run in parallel. The animation group
+    finishes when the longest lasting animation has finished.
+*/
+
+#ifndef QT_NO_ANIMATION
+
+#include "qparallelanimationgroup.h"
+#include "qparallelanimationgroup_p.h"
+//#define QANIMATION_DEBUG
+QT_BEGIN_NAMESPACE
+
+/*!
+    Constructs a QParallelAnimationGroup.
+    \a parent is passed to QObject's constructor.
+*/
+QParallelAnimationGroup::QParallelAnimationGroup(QObject *parent)
+    : QAnimationGroup(*new QParallelAnimationGroupPrivate, parent)
+{
+}
+
+/*!
+    \internal
+*/
+QParallelAnimationGroup::QParallelAnimationGroup(QParallelAnimationGroupPrivate &dd,
+                                                 QObject *parent)
+    : QAnimationGroup(dd, parent)
+{
+}
+
+/*!
+    Destroys the animation group. It will also destroy all its animations.
+*/
+QParallelAnimationGroup::~QParallelAnimationGroup()
+{
+}
+
+/*!
+    \reimp
+*/
+int QParallelAnimationGroup::duration() const
+{
+    Q_D(const QParallelAnimationGroup);
+    int ret = 0;
+
+    for (int i = 0; i < d->animations.size(); ++i) {
+        QAbstractAnimation *animation = d->animations.at(i);
+        const int currentDuration = animation->totalDuration();
+        if (currentDuration == -1)
+            return -1; // Undetermined length
+
+        ret = qMax(ret, currentDuration);
+    }
+
+    return ret;
+}
+
+/*!
+    \reimp
+*/
+void QParallelAnimationGroup::updateCurrentTime(int)
+{
+    Q_D(QParallelAnimationGroup);
+    if (d->animations.isEmpty())
+        return;
+
+    if (d->currentIteration > d->lastIteration) {
+        // simulate completion of the loop
+        int dura = duration();
+        if (dura > 0) {
+            foreach (QAbstractAnimation *animation, d->animations) {
+                animation->setCurrentTime(dura);   // will stop
+            }
+        }
+    } else if (d->currentIteration < d->lastIteration) {
+        // simulate completion of the loop seeking backwards
+        foreach (QAbstractAnimation *animation, d->animations) {
+            animation->setCurrentTime(0);
+            animation->stop();
+        }
+    }
+
+    bool timeFwd = ((d->currentIteration == d->lastIteration && d->currentTime >= d->lastCurrentTime)
+                   || d->currentIteration > d->lastIteration);
+#ifdef QANIMATION_DEBUG
+    qDebug("QParallellAnimationGroup %5d: setCurrentTime(%d), loop:%d, last:%d, timeFwd:%d, lastcurrent:%d, %d",
+        __LINE__, d->currentTime, d->currentIteration, d->lastIteration, timeFwd, d->lastCurrentTime, state());
+#endif
+    // finally move into the actual time of the current loop
+    foreach (QAbstractAnimation *animation, d->animations) {
+        const int dura = animation->totalDuration();
+        if (dura == -1 && d->isUncontrolledAnimationFinished(animation))
+            continue;
+        if (dura == -1 || (d->currentTime <= dura && dura != 0)
+            || (dura == 0 && d->currentIteration != d->lastIteration)) {
+            switch (state()) {
+            case Running:
+                animation->start();
+                break;
+            case Paused:
+                animation->pause();
+                break;
+            case Stopped:
+            default:
+                break;
+            }
+        }
+
+        if (dura <= 0) {
+            if (dura == -1)
+                animation->setCurrentTime(d->currentTime);
+            continue;
+        }
+
+        if ((timeFwd && d->lastCurrentTime <= dura)
+            || (!timeFwd && d->currentTime <= dura))
+                animation->setCurrentTime(d->currentTime);
+        if (d->currentTime > dura)
+            animation->stop();
+    }
+    d->lastIteration = d->currentIteration;
+    d->lastCurrentTime = d->currentTime;
+}
+
+/*!
+    \reimp
+*/
+void QParallelAnimationGroup::updateState(QAbstractAnimation::State oldState,
+                                          QAbstractAnimation::State newState)
+{
+    Q_D(QParallelAnimationGroup);
+    QAnimationGroup::updateState(oldState, newState);
+
+    switch (newState) {
+    case Stopped:
+        foreach (QAbstractAnimation *animation, d->animations)
+            animation->stop();
+        d->disconnectUncontrolledAnimations();
+        break;
+    case Paused:
+        foreach (QAbstractAnimation *animation, d->animations)
+            animation->pause();
+        break;
+    case Running:
+        d->connectUncontrolledAnimations();
+        foreach (QAbstractAnimation *animation, d->animations) {
+            animation->stop();
+            animation->setDirection(d->direction);
+            animation->start();
+        }
+        break;
+    }
+}
+
+void QParallelAnimationGroupPrivate::_q_uncontrolledAnimationFinished()
+{
+    Q_Q(QParallelAnimationGroup);
+
+    QAbstractAnimation *animation = qobject_cast<QAbstractAnimation *>(q->sender());
+    Q_ASSERT(animation);
+
+    int uncontrolledRunningCount = 0;
+    if (animation->duration() == -1 || animation->iterationCount() < 0) {
+        QHash<QAbstractAnimation *, int>::iterator it = uncontrolledFinishTime.begin();
+        while (it != uncontrolledFinishTime.end()) {
+            if (it.key() == animation) {
+                *it = animation->currentTime();
+            }
+            if (it.value() == -1)
+                ++uncontrolledRunningCount;
+            ++it;
+        }
+    }
+
+    if (uncontrolledRunningCount > 0)
+        return;
+
+    int maxDuration = 0;
+    foreach (QAbstractAnimation *a, animations)
+        maxDuration = qMax(maxDuration, a->totalDuration());
+
+    if (currentTime >= maxDuration)
+        q->stop();
+}
+
+void QParallelAnimationGroupPrivate::disconnectUncontrolledAnimations()
+{
+    Q_Q(QParallelAnimationGroup);
+
+    QHash<QAbstractAnimation *, int>::iterator it = uncontrolledFinishTime.begin();
+    while (it != uncontrolledFinishTime.end()) {
+        QObject::disconnect(it.key(), SIGNAL(finished()), q, SLOT(_q_uncontrolledAnimationFinished()));
+        ++it;
+    }
+
+    uncontrolledFinishTime.clear();
+}
+
+void QParallelAnimationGroupPrivate::connectUncontrolledAnimations()
+{
+    Q_Q(QParallelAnimationGroup);
+
+    foreach (QAbstractAnimation *animation, animations) {
+        if (animation->duration() == -1 || animation->iterationCount() < 0) {
+            uncontrolledFinishTime[animation] = -1;
+            QObject::connect(animation, SIGNAL(finished()), q, SLOT(_q_uncontrolledAnimationFinished()));
+        }
+    }
+}
+
+bool QParallelAnimationGroupPrivate::isUncontrolledAnimationFinished(QAbstractAnimation *anim) const
+{
+    return uncontrolledFinishTime.value(anim, -1) >= 0;
+}
+
+/*!
+    \reimp
+*/
+void QParallelAnimationGroup::updateDirection(QAbstractAnimation::Direction direction)
+{
+    Q_D(QParallelAnimationGroup);
+    //we need to update the direction of the current animation
+    if (state() != Stopped) {
+        foreach(QAbstractAnimation *anim, d->animations) {
+            anim->setDirection(direction);
+        }
+    } else {
+        if (direction == Forward) {
+            d->lastIteration = 0;
+            d->lastCurrentTime = 0;
+        } else {
+            // Looping backwards with iterationCount == -1 does not really work well...
+            d->lastIteration = (d->iterationCount == -1 ? 0 : d->iterationCount - 1);
+            d->lastCurrentTime = duration();
+        }
+    }
+}
+
+/*!
+    \reimp
+*/
+bool QParallelAnimationGroup::event(QEvent *event)
+{
+    return QAnimationGroup::event(event);
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qparallelanimationgroup.cpp"
+
+#endif //QT_NO_ANIMATION
diff --git a/src/corelib/animation/qparallelanimationgroup.h b/src/corelib/animation/qparallelanimationgroup.h
new file mode 100644
index 0000000..48d66a3
--- /dev/null
+++ b/src/corelib/animation/qparallelanimationgroup.h
@@ -0,0 +1,90 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPARALLELANIMATIONGROUP_H
+#define QPARALLELANIMATIONGROUP_H
+
+#if defined(QT_EXPERIMENTAL_SOLUTION)
+# include "qanimationgroup.h"
+#else
+# include <QtCore/qanimationgroup.h>
+#endif
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+#ifndef QT_NO_ANIMATION
+
+class QParallelAnimationGroupPrivate;
+class Q_CORE_EXPORT QParallelAnimationGroup : public QAnimationGroup
+{
+    Q_OBJECT
+
+public:
+    QParallelAnimationGroup(QObject *parent = 0);
+    ~QParallelAnimationGroup();
+
+    int duration() const;
+
+protected:
+    QParallelAnimationGroup(QParallelAnimationGroupPrivate &dd, QObject *parent);
+    bool event(QEvent *event);
+
+    void updateCurrentTime(int msecs);
+    void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);
+    void updateDirection(QAbstractAnimation::Direction direction);
+
+private:
+    Q_DISABLE_COPY(QParallelAnimationGroup)
+    Q_DECLARE_PRIVATE(QParallelAnimationGroup)
+    Q_PRIVATE_SLOT(d_func(), void _q_uncontrolledAnimationFinished())
+};
+
+#endif //QT_NO_ANIMATION
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QPARALLELANIMATIONGROUP
diff --git a/src/corelib/animation/qparallelanimationgroup_p.h b/src/corelib/animation/qparallelanimationgroup_p.h
new file mode 100644
index 0000000..8a4dc1b
--- /dev/null
+++ b/src/corelib/animation/qparallelanimationgroup_p.h
@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPARALLELANIMATIONGROUP_P_H
+#define QPARALLELANIMATIONGROUP_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of QIODevice. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qparallelanimationgroup.h"
+#include "qanimationgroup_p.h"
+#include <QtCore/QHash>
+
+QT_BEGIN_NAMESPACE
+
+class QParallelAnimationGroupPrivate : public QAnimationGroupPrivate
+{
+    Q_DECLARE_PUBLIC(QParallelAnimationGroup)
+public:
+    QParallelAnimationGroupPrivate()
+        : lastIteration(0), lastCurrentTime(0)
+    {
+    }
+
+    QHash<QAbstractAnimation*, int> uncontrolledFinishTime;
+    int lastIteration;
+    int lastCurrentTime;
+
+    bool isUncontrolledAnimationFinished(QAbstractAnimation *anim) const;
+    void connectUncontrolledAnimations();
+    void disconnectUncontrolledAnimations();
+
+    // private slot
+    void _q_uncontrolledAnimationFinished();
+};
+
+QT_END_NAMESPACE
+
+#endif //QPARALLELANIMATIONGROUP_P_H
diff --git a/src/corelib/animation/qpauseanimation.cpp b/src/corelib/animation/qpauseanimation.cpp
new file mode 100644
index 0000000..30ea92c
--- /dev/null
+++ b/src/corelib/animation/qpauseanimation.cpp
@@ -0,0 +1,139 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \class QPauseAnimation
+    \brief The QPauseAnimation class provides a pause for QSequentialAnimationGroup.
+    \since 4.5
+    \ingroup animation
+    \preliminary
+*/
+
+#ifndef QT_NO_ANIMATION
+
+#include "qpauseanimation.h"
+#include "qabstractanimation_p.h"
+
+
+QT_BEGIN_NAMESPACE
+
+class QPauseAnimationPrivate : public QAbstractAnimationPrivate
+{
+public:
+    QPauseAnimationPrivate() : QAbstractAnimationPrivate(), duration(0)
+    {
+    }
+
+    int duration;
+};
+
+/*!
+    Constructs a QPauseAnimation.
+    \a parent is passed to QObject's constructor.
+    The default duration is 0.
+*/
+
+QPauseAnimation::QPauseAnimation(QObject *parent) : QAbstractAnimation(*new QPauseAnimationPrivate, parent)
+{
+}
+
+/*!
+    Constructs a QPauseAnimation.
+    \a msecs is the duration of the pause.
+    \a parent is passed to QObject's constructor.
+*/
+
+QPauseAnimation::QPauseAnimation(int msecs, QObject *parent) : QAbstractAnimation(*new QPauseAnimationPrivate, parent)
+{
+    setDuration(msecs);
+}
+
+/*!
+    Destroys the pause animation.
+*/
+QPauseAnimation::~QPauseAnimation()
+{
+}
+
+/*!
+    \property QPauseAnimation::duration
+    \brief the duration of the pause.
+
+    The duration of the pause. The duration should not be negative.
+*/
+int QPauseAnimation::duration() const
+{
+    Q_D(const QPauseAnimation);
+    return d->duration;
+}
+
+void QPauseAnimation::setDuration(int msecs)
+{
+    if (msecs < 0) {
+        qWarning("QPauseAnimation::setDuration: cannot set a negative duration");
+        return;
+    }
+    Q_D(QPauseAnimation);
+    d->duration = msecs;
+}
+
+/*!
+    \reimp
+ */
+bool QPauseAnimation::event(QEvent *e)
+{
+    return QAbstractAnimation::event(e);
+}
+
+/*!
+    \reimp
+ */
+void QPauseAnimation::updateCurrentTime(int msecs)
+{
+    Q_UNUSED(msecs);
+}
+
+
+QT_END_NAMESPACE
+
+#include "moc_qpauseanimation.cpp"
+
+#endif //QT_NO_ANIMATION
diff --git a/src/corelib/animation/qpauseanimation.h b/src/corelib/animation/qpauseanimation.h
new file mode 100644
index 0000000..595f2d0
--- /dev/null
+++ b/src/corelib/animation/qpauseanimation.h
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPAUSEANIMATION_P_H
+#define QPAUSEANIMATION_P_H
+
+#if defined(QT_EXPERIMENTAL_SOLUTION)
+# include "qanimationgroup.h"
+#else
+# include <QtCore/qanimationgroup.h>
+#endif
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+#ifndef QT_NO_ANIMATION
+
+class QPauseAnimationPrivate;
+
+class Q_CORE_EXPORT QPauseAnimation : public QAbstractAnimation
+{
+    Q_OBJECT
+    Q_PROPERTY(int duration READ duration WRITE setDuration)
+public:
+    QPauseAnimation(QObject *parent = 0);
+    QPauseAnimation(int msecs, QObject *parent = 0);
+    ~QPauseAnimation();
+
+    int duration() const;
+    void setDuration(int msecs);
+
+protected:
+    bool event(QEvent *e);
+    void updateCurrentTime(int msecs);
+
+private:
+    Q_DISABLE_COPY(QPauseAnimation)
+    Q_DECLARE_PRIVATE(QPauseAnimation)
+};
+
+#endif //QT_NO_ANIMATION
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QPAUSEANIMATION_P_H
diff --git a/src/corelib/animation/qpropertyanimation.cpp b/src/corelib/animation/qpropertyanimation.cpp
new file mode 100644
index 0000000..adf3527
--- /dev/null
+++ b/src/corelib/animation/qpropertyanimation.cpp
@@ -0,0 +1,256 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \class QPropertyAnimation
+    \brief The QPropertyAnimation class animates properties for QObject(and QWidget)
+    \ingroup animation
+    \preliminary
+
+    This class is part of {The Animation Framework}.  You can use QPropertyAnimation
+    by itself as a simple animation class, or as part of more complex
+    animations through QAnimationGroup.
+
+    The most common way to use QPropertyAnimation is to construct an instance 
+    of it by passing a pointer to a QObject or a QWidget, and the name of the
+    property you would like to animate to QPropertyAnimation's constructor.
+
+    The start value of the animation is optional. If you do not set any start
+    value, the animation will operate on the target's current property value
+    at the point when the animation was started. You can call setStartValue()
+    to set the start value, and setEndValue() to set the target value for
+    the animated property.
+
+    Animations can operate on QObjects and QWidgets. You can choose to assign a
+    target object by either calling setTargetObject() or by passing a QObject
+    pointer to QPropertyAnimation's constructor.
+
+    \sa QVariantAnimation, QAnimationGroup, {The Animation Framework}
+*/
+
+#ifndef QT_NO_ANIMATION
+
+#include "qpropertyanimation.h"
+#include "qanimationgroup.h"
+#include <QtCore/qdebug.h>
+
+#include "qpropertyanimation_p.h"
+
+#include <QtCore/qmath.h>
+#include <QtCore/qmutex.h>
+
+QT_BEGIN_NAMESPACE
+
+typedef QPair<QObject *, QByteArray> QPropertyAnimationPair;
+typedef QHash<QPropertyAnimationPair, QPropertyAnimation*> QPropertyAnimationHash;
+Q_GLOBAL_STATIC(QPropertyAnimationHash, _q_runningAnimations);
+Q_GLOBAL_STATIC_WITH_ARGS(QMutex, guardHashLock, (QMutex::Recursive) )
+
+void QPropertyAnimationPrivate::updateMetaProperty()
+{
+    if (!target || propertyName.isEmpty())
+        return;
+
+    if (hasMetaProperty == 0 && !property.isValid()) {
+        const QMetaObject *mo = target->metaObject();
+        propertyIndex = mo->indexOfProperty(propertyName);
+        if (propertyIndex != -1) {
+            hasMetaProperty = 1;
+            property = mo->property(propertyIndex);
+            propertyType = property.userType();
+        } else {
+            hasMetaProperty = 2;
+        }
+    }
+
+    if (property.isValid())
+        convertValues(propertyType);
+}
+
+void QPropertyAnimationPrivate::updateProperty(const QVariant &newValue)
+{
+    if (!target || state == QAbstractAnimation::Stopped)
+        return;
+
+    if (hasMetaProperty == 1) {
+        if (newValue.userType() == propertyType) {
+          //no conversion is needed, we directly call the QObject::qt_metacall
+          void *data = const_cast<void*>(newValue.constData());
+          target->qt_metacall(QMetaObject::WriteProperty, propertyIndex, &data);
+        } else {
+          property.write(target, newValue);
+        }
+    } else {
+        target->setProperty(propertyName.constData(), newValue);
+    }
+}
+
+/*!
+    Construct a QPropertyAnimation object. \a parent is passed to QObject's
+    constructor.
+*/
+QPropertyAnimation::QPropertyAnimation(QObject *parent)
+    : QVariantAnimation(*new QPropertyAnimationPrivate, parent)
+{
+}
+
+/*!
+    Construct a QPropertyAnimation object. \a parent is passed to QObject's
+    constructor. The animation changes the property \a propertyName on \a
+    target. The default duration is 250ms.
+
+    \sa targetObject, propertyName
+*/
+QPropertyAnimation::QPropertyAnimation(QObject *target, const QByteArray &propertyName, QObject *parent)
+    : QVariantAnimation(*new QPropertyAnimationPrivate, parent)
+{
+    setTargetObject(target);
+    setPropertyName(propertyName);
+}
+
+/*!
+    Destroys the QPropertyAnimation instance.
+ */
+QPropertyAnimation::~QPropertyAnimation()
+{
+    stop();
+}
+
+/*!
+    \property QPropertyAnimation::targetObject
+    \brief the target QObject for this animation.
+
+    This property defines the target QObject for this animation.
+ */
+QObject *QPropertyAnimation::targetObject() const
+{
+    Q_D(const QPropertyAnimation);
+    return d->target;
+}
+void QPropertyAnimation::setTargetObject(QObject *target)
+{
+    Q_D(QPropertyAnimation);
+    if (d->target == target)
+        return;
+
+    d->target = target;
+    d->hasMetaProperty = 0;
+    d->updateMetaProperty();
+}
+
+/*!
+    \property QPropertyAnimation::propertyName
+    \brief the target property name for this animation
+
+    This property defines the target property name for this animation. The
+    property name is required for the animation to operate.
+ */
+QByteArray QPropertyAnimation::propertyName() const
+{
+    Q_D(const QPropertyAnimation);
+    return d->propertyName;
+}
+void QPropertyAnimation::setPropertyName(const QByteArray &propertyName)
+{
+    Q_D(QPropertyAnimation);
+    d->propertyName = propertyName;
+    d->hasMetaProperty = 0;
+    d->updateMetaProperty();
+}
+
+
+/*!
+    \reimp
+ */
+bool QPropertyAnimation::event(QEvent *event)
+{
+    return QVariantAnimation::event(event);
+}
+
+/*!
+    This virtual function is called by QVariantAnimation whenever the current value
+    changes. \a value is the new, updated value. It updates the current value
+    of the property on the target object.
+
+    \sa currentValue, currentTime
+ */
+void QPropertyAnimation::updateCurrentValue(const QVariant &value)
+{
+    Q_D(QPropertyAnimation);
+    d->updateProperty(value);
+}
+
+/*!
+    \reimp
+*/
+void QPropertyAnimation::updateState(QAbstractAnimation::State oldState,
+                                     QAbstractAnimation::State newState)
+{
+    Q_D(QPropertyAnimation);
+    QVariantAnimation::updateState(oldState, newState);
+    QMutexLocker locker(guardHashLock());
+    QPropertyAnimationHash * hash = _q_runningAnimations();
+    QPropertyAnimationPair key(d->target, d->propertyName);
+    if (newState == Running) {
+        d->updateMetaProperty();
+        QPropertyAnimation *oldAnim = hash->value(key, 0);
+        if (oldAnim) {
+            //we try to stop the top level group
+            QAbstractAnimation *current = oldAnim;
+            while(current->group() && current->state() != Stopped) current = current->group();
+            current->stop();
+        }
+        hash->insert(key, this);
+        // Initialize start value
+        if (d->target && !d->defaultStartValue.isValid() && (d->atBeginning() || d->atEnd())) {
+            d->setDefaultStartValue(d->target->property(d->propertyName.constData()));
+        }
+    } else if (hash->value(key) == this) {
+        hash->remove(key);
+    }
+
+}
+
+#include "moc_qpropertyanimation.cpp"
+
+QT_END_NAMESPACE
+
+#endif //QT_NO_ANIMATION
diff --git a/src/corelib/animation/qpropertyanimation.h b/src/corelib/animation/qpropertyanimation.h
new file mode 100644
index 0000000..e5d5305
--- /dev/null
+++ b/src/corelib/animation/qpropertyanimation.h
@@ -0,0 +1,94 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPROPERTYANIMATION_H
+#define QPROPERTYANIMATION_H
+
+#if defined(QT_EXPERIMENTAL_SOLUTION)
+# include "qvariantanimation.h"
+#else
+# include <QtCore/qvariantanimation.h>
+#endif
+#include <QtCore/qvariant.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+#ifndef QT_NO_ANIMATION
+
+class QPropertyAnimationPrivate;
+class Q_CORE_EXPORT QPropertyAnimation : public QVariantAnimation
+{
+    Q_OBJECT
+    Q_PROPERTY(QByteArray propertyName READ propertyName WRITE setPropertyName)
+    Q_PROPERTY(QObject* targetObject READ targetObject WRITE setTargetObject)
+
+public:
+    QPropertyAnimation(QObject *parent = 0);
+    QPropertyAnimation(QObject *target, const QByteArray &propertyName, QObject *parent = 0);
+    ~QPropertyAnimation();
+
+    QObject *targetObject() const;
+    void setTargetObject(QObject *target);
+
+    QByteArray propertyName() const;
+    void setPropertyName(const QByteArray &propertyName);
+
+protected:
+    bool event(QEvent *event);
+
+    void updateCurrentValue(const QVariant &value);
+    void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);
+private:
+    Q_DISABLE_COPY(QPropertyAnimation)
+    Q_DECLARE_PRIVATE(QPropertyAnimation)
+};
+
+#endif //QT_NO_ANIMATION
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QPROPERTYANIMATION_H
diff --git a/src/corelib/animation/qpropertyanimation_p.h b/src/corelib/animation/qpropertyanimation_p.h
new file mode 100644
index 0000000..ed3666d
--- /dev/null
+++ b/src/corelib/animation/qpropertyanimation_p.h
@@ -0,0 +1,89 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QPROPERTYANIMATION_P_H
+#define QPROPERTYANIMATION_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of QIODevice. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qpropertyanimation.h"
+#include <QtCore/qmetaobject.h>
+#include <QtCore/qpointer.h>
+
+#include "qvariantanimation_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class QPropertyAnimationPrivate : public QVariantAnimationPrivate
+{
+   Q_DECLARE_PUBLIC(QPropertyAnimation)
+public:
+    QPropertyAnimationPrivate()
+        : target(0), propertyType(0), propertyIndex(0), hasMetaProperty(false)
+    {
+    }
+
+
+    QPointer<QObject> target;
+
+    //for the QProperty
+    QMetaProperty property;
+    int propertyType;
+    int propertyIndex;
+
+    int hasMetaProperty;
+    QByteArray propertyName;
+    void updateProperty(const QVariant &);
+    void updateMetaProperty();
+};
+
+QT_END_NAMESPACE
+
+#endif
diff --git a/src/corelib/animation/qsequentialanimationgroup.cpp b/src/corelib/animation/qsequentialanimationgroup.cpp
new file mode 100644
index 0000000..879532c
--- /dev/null
+++ b/src/corelib/animation/qsequentialanimationgroup.cpp
@@ -0,0 +1,572 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+/*!
+    \class QSequentialAnimationGroup
+    \brief The QSequentialAnimationGroup class provides a sequential group of animations.
+    \since 4.5
+    \ingroup animation
+    \preliminary
+
+    The first animation in the group is started first, and when it finishes, the next animation
+    is started, and so on. The animation group finishes when the last animation has finished.
+
+    At each moment there is at most one animation that is active in the group, called currentAnimation.
+    An empty group has no current animation.
+
+    You can call addPause() or insertPause() to add a pause to a sequential animation group.
+*/
+
+#ifndef QT_NO_ANIMATION
+
+#include "qsequentialanimationgroup.h"
+#include "qsequentialanimationgroup_p.h"
+
+#include "qpauseanimation.h"
+
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+
+
+bool QSequentialAnimationGroupPrivate::atEnd() const
+{
+    // we try to detect if we're at the end of the group
+    //this is true if the following conditions are true:
+    // 1. we're in the last loop
+    // 2. the direction is forward
+    // 3. the current animation is the last one
+    // 4. the current animation has reached its end
+    const int animTotalCurrentTime = QAbstractAnimationPrivate::get(currentAnimation)->totalCurrentTime;
+    return (currentIteration == iterationCount - 1
+        && direction == QAbstractAnimation::Forward
+        && currentAnimation == animations.last()
+        && animTotalCurrentTime == animationActualTotalDuration(currentAnimationIndex));
+}
+
+int QSequentialAnimationGroupPrivate::animationActualTotalDuration(int index) const
+{
+    QAbstractAnimation *anim = animations.at(index);
+    int ret = anim->totalDuration();
+    if (ret == -1 && actualDuration.size() > index)
+        ret = actualDuration.at(index); //we can try the actual duration there
+    return ret;
+}
+
+QSequentialAnimationGroupPrivate::AnimationIndex QSequentialAnimationGroupPrivate::indexForTime(int msecs) const
+{
+    Q_Q(const QSequentialAnimationGroup);
+    Q_ASSERT(!animations.isEmpty());
+
+    AnimationIndex ret;
+    int duration = 0;
+
+    // in case duration is -1, currentLoop will always be 0
+    ret.timeOffset = currentIteration * q->duration();
+
+    for (int i = 0; i < animations.size(); ++i) {
+        duration = animationActualTotalDuration(i);
+
+        // 'animation' is the current animation if one of these reasons is true:
+        // 1. it's duration is undefined
+        // 2. it ends after msecs
+        // 3. it is the last animation (this can happen in case there is at least 1 uncontrolled animation)
+        // 4. it ends exactly in msecs and the direction is backwards
+        if (duration == -1 || msecs < (ret.timeOffset + duration)
+            || (msecs == (ret.timeOffset + duration) && direction == QAbstractAnimation::Backward)) {
+            ret.index = i;
+            return ret;
+        }
+
+        // 'animation' has a non-null defined duration and is not the one at time 'msecs'.
+        ret.timeOffset += duration;
+    }
+
+    // this can only happen when one of those conditions is true:
+    // 1. the duration of the group is undefined and we passed its actual duration
+    // 2. there are only 0-duration animations in the group
+    ret.timeOffset -= duration;
+    ret.index = animations.size() - 1;
+    return ret;
+}
+
+void QSequentialAnimationGroupPrivate::restart()
+{
+    // restarting the group by making the first/last animation the current one
+    if (direction == QAbstractAnimation::Forward) {
+        lastIteration = 0;
+        if (currentAnimationIndex == 0)
+            activateCurrentAnimation();
+        else
+            setCurrentAnimation(0);
+    } else { // direction == QAbstractAnimation::Backward
+        lastIteration = iterationCount - 1;
+        int index = animations.size() - 1;
+        if (currentAnimationIndex == index)
+            activateCurrentAnimation();
+        else
+            setCurrentAnimation(index);
+    }
+}
+
+/*!
+    \internal
+    This manages advancing the execution of a group running forwards (time has gone forward),
+    which is the same behaviour for rewinding the execution of a group running backwards
+    (time has gone backward).
+*/
+void QSequentialAnimationGroupPrivate::advanceForwards(const AnimationIndex &newAnimationIndex)
+{
+    if (lastIteration < currentIteration) {
+        // we need to fast forward to the end
+        for (int i = currentAnimationIndex; i < animations.size(); ++i) {
+            QAbstractAnimation *anim = animations.at(i);
+            setCurrentAnimation(i, true);
+            anim->setCurrentTime(animationActualTotalDuration(i));
+        }
+        // this will make sure the current animation is reset to the beginning
+        if (animations.size() == 1)
+            // we need to force activation because setCurrentAnimation will have no effect
+            activateCurrentAnimation();
+        else
+            setCurrentAnimation(0, true);
+    }
+
+    // and now we need to fast forward from the current position to
+    for (int i = currentAnimationIndex; i < newAnimationIndex.index; ++i) {     //### WRONG,
+        QAbstractAnimation *anim = animations.at(i);
+        setCurrentAnimation(i, true);
+        anim->setCurrentTime(animationActualTotalDuration(i));
+    }
+    // setting the new current animation will happen later
+}
+
+/*!
+    \internal
+    This manages rewinding the execution of a group running forwards (time has gone forward),
+    which is the same behaviour for advancing the execution of a group running backwards
+    (time has gone backward).
+*/
+void QSequentialAnimationGroupPrivate::rewindForwards(const AnimationIndex &newAnimationIndex)
+{
+    if (lastIteration > currentIteration) {
+        // we need to fast rewind to the beginning
+        for (int i = currentAnimationIndex; i >= 0 ; --i) {
+            QAbstractAnimation *anim = animations.at(i);
+            setCurrentAnimation(i, true);
+            anim->setCurrentTime(0);
+        }
+        // this will make sure the current animation is reset to the end
+        if (animations.size() == 1)
+            // we need to force activation because setCurrentAnimation will have no effect
+            activateCurrentAnimation();
+        else
+            setCurrentAnimation(animations.count() - 1, true);
+    }
+
+    // and now we need to fast rewind from the current position to
+    for (int i = currentAnimationIndex; i > newAnimationIndex.index; --i) {
+        QAbstractAnimation *anim = animations.at(i);
+        setCurrentAnimation(i, true);
+        anim->setCurrentTime(0);
+    }
+    // setting the new current animation will happen later
+}
+
+/*!
+    \fn QSequentialAnimationGroup::currentAnimationChanged(QAbstractAnimation *current)
+
+    QSequentialAnimationGroup emits this signal when currentAnimation
+    has been changed. \a current is the current animation.
+
+    \sa currentAnimation()
+*/
+
+
+/*!
+    Constructs a QSequentialAnimationGroup.
+    \a parent is passed to QObject's constructor.
+*/
+QSequentialAnimationGroup::QSequentialAnimationGroup(QObject *parent)
+    : QAnimationGroup(*new QSequentialAnimationGroupPrivate, parent)
+{
+}
+
+/*!
+    \internal
+*/
+QSequentialAnimationGroup::QSequentialAnimationGroup(QSequentialAnimationGroupPrivate &dd,
+                                                     QObject *parent)
+    : QAnimationGroup(dd, parent)
+{
+}
+
+/*!
+    Destroys the animation group. It will also destroy all its animations.
+*/
+QSequentialAnimationGroup::~QSequentialAnimationGroup()
+{
+}
+
+/*!
+    Adds a pause of \a msecs to this animation group.
+    The pause is considered as a special type of animation, thus count() will be
+    increased by one.
+    \sa insertPauseAt(), QAnimationGroup::addAnimation()
+*/
+QPauseAnimation *QSequentialAnimationGroup::addPause(int msecs)
+{
+    QPauseAnimation *pause = new QPauseAnimation(msecs);
+    addAnimation(pause);
+    return pause;
+}
+
+/*!
+    Inserts a pause of \a msecs milliseconds at \a index in this animation
+    group.
+
+    \sa addPause(), QAnimationGroup::insertAnimationAt()
+*/
+QPauseAnimation *QSequentialAnimationGroup::insertPauseAt(int index, int msecs)
+{
+    Q_D(const QSequentialAnimationGroup);
+
+    if (index < 0 || index > d->animations.size()) {
+        qWarning("QSequentialAnimationGroup::insertPauseAt: index is out of bounds");
+        return 0;
+    }
+
+    QPauseAnimation *pause = new QPauseAnimation(msecs);
+    insertAnimationAt(index, pause);
+    return pause;
+}
+
+
+/*!
+    \property QSequentialAnimationGroup::currentAnimation
+    Returns the animation in the current time.
+
+    \sa currentAnimationChanged()
+*/
+QAbstractAnimation *QSequentialAnimationGroup::currentAnimation() const
+{
+    Q_D(const QSequentialAnimationGroup);
+    return d->currentAnimation;
+}
+
+/*!
+    \reimp
+*/
+int QSequentialAnimationGroup::duration() const
+{
+    Q_D(const QSequentialAnimationGroup);
+    int ret = 0;
+
+    for (int i = 0; i < d->animations.size(); ++i) {
+        QAbstractAnimation *animation = d->animations.at(i);
+        const int currentDuration = animation->totalDuration();
+        if (currentDuration == -1)
+            return -1; // Undetermined length
+
+        ret += currentDuration;
+    }
+
+    return ret;
+}
+
+/*!
+    \reimp
+*/
+void QSequentialAnimationGroup::updateCurrentTime(int msecs)
+{
+    Q_D(QSequentialAnimationGroup);
+    if (!d->currentAnimation)
+        return;
+
+    const QSequentialAnimationGroupPrivate::AnimationIndex newAnimationIndex = d->indexForTime(msecs);
+
+    // remove unneeded animations from actualDuration list
+    while (newAnimationIndex.index < d->actualDuration.size())
+        d->actualDuration.removeLast();
+
+    // newAnimationIndex.index is the new current animation
+    if (d->lastIteration < d->currentIteration
+        || (d->lastIteration == d->currentIteration && d->currentAnimationIndex < newAnimationIndex.index)) {
+            // advancing with forward direction is the same as rewinding with backwards direction
+            d->advanceForwards(newAnimationIndex);
+    } else if (d->lastIteration > d->currentIteration
+        || (d->lastIteration == d->currentIteration && d->currentAnimationIndex > newAnimationIndex.index)) {
+            // rewinding with forward direction is the same as advancing with backwards direction
+            d->rewindForwards(newAnimationIndex);
+    }
+
+    d->setCurrentAnimation(newAnimationIndex.index);
+
+    const int newCurrentTime = msecs - newAnimationIndex.timeOffset;
+
+    if (d->currentAnimation) {
+        d->currentAnimation->setCurrentTime(newCurrentTime);
+        if (d->atEnd()) {
+            //we make sure that we don't exceed the duration here
+            d->currentTime += QAbstractAnimationPrivate::get(d->currentAnimation)->totalCurrentTime - newCurrentTime;
+            stop();
+        }
+    } else {
+        //the only case where currentAnimation could be null
+        //is when all animations have been removed
+        Q_ASSERT(d->animations.isEmpty());
+        d->currentTime = 0;
+        stop();
+    }
+
+    d->lastIteration = d->currentIteration;
+}
+
+/*!
+    \reimp
+*/
+void QSequentialAnimationGroup::updateState(QAbstractAnimation::State oldState,
+                                            QAbstractAnimation::State newState)
+{
+    Q_D(QSequentialAnimationGroup);
+    QAnimationGroup::updateState(oldState, newState);
+
+    if (!d->currentAnimation)
+        return;
+
+    switch (newState) {
+    case Stopped:
+        d->currentAnimation->stop();
+        break;
+    case Paused:
+        if (oldState == d->currentAnimation->state()
+            && oldState == QSequentialAnimationGroup::Running) {
+                d->currentAnimation->pause();
+            }
+        else
+            d->restart();
+        break;
+    case Running:
+        if (oldState == d->currentAnimation->state()
+            && oldState == QSequentialAnimationGroup::Paused)
+            d->currentAnimation->start();
+        else
+            d->restart();
+        break;
+    }
+}
+
+/*!
+    \reimp
+*/
+void QSequentialAnimationGroup::updateDirection(QAbstractAnimation::Direction direction)
+{
+    Q_D(QSequentialAnimationGroup);
+    // we need to update the direction of the current animation
+    if (state() != Stopped && d->currentAnimation)
+        d->currentAnimation->setDirection(direction);
+}
+
+/*!
+    \reimp
+*/
+bool QSequentialAnimationGroup::event(QEvent *event)
+{
+    return QAnimationGroup::event(event);
+}
+
+void QSequentialAnimationGroupPrivate::setCurrentAnimation(int index, bool intermediate)
+{
+    Q_Q(QSequentialAnimationGroup);
+
+    index = qMin(index, animations.count() - 1);
+
+    if (index == -1) {
+        Q_ASSERT(animations.isEmpty());
+        currentAnimationIndex = -1;
+        currentAnimation = 0;
+        return;
+    }
+
+    // need these two checks below because this func can be called after the current animation
+    // has been removed
+    if (index == currentAnimationIndex && animations.at(index) == currentAnimation)
+        return;
+
+    // stop the old current animation
+    if (currentAnimation)
+        currentAnimation->stop();
+
+    currentAnimation = animations.at(index);
+    currentAnimationIndex = index;
+
+    emit q->currentAnimationChanged(currentAnimation);
+
+    activateCurrentAnimation(intermediate);
+}
+
+void QSequentialAnimationGroupPrivate::activateCurrentAnimation(bool intermediate)
+{
+    Q_Q(QSequentialAnimationGroup);
+
+    if (!currentAnimation)
+        return;
+
+    if (state == QSequentialAnimationGroup::Stopped)
+        return;
+
+    currentAnimation->stop();
+
+    // we ensure the direction is consistent with the group's direction
+    currentAnimation->setDirection(direction);
+
+    // connects to the finish signal of uncontrolled animations
+    if (currentAnimation->totalDuration() == -1)
+        QObject::connect(currentAnimation, SIGNAL(finished()), q, SLOT(_q_uncontrolledAnimationFinished()));
+
+    currentAnimation->start();
+    if (!intermediate && state == QSequentialAnimationGroup::Paused)
+        currentAnimation->pause();
+}
+
+void QSequentialAnimationGroupPrivate::_q_uncontrolledAnimationFinished()
+{
+    Q_Q(QSequentialAnimationGroup);
+    Q_ASSERT(qobject_cast<QAbstractAnimation *>(q->sender()) == currentAnimation);
+
+    // we trust the duration returned by the animation
+    while (actualDuration.size() < (currentAnimationIndex + 1))
+        actualDuration.append(-1);
+    actualDuration[currentAnimationIndex] = currentAnimation->currentTime();
+
+    QObject::disconnect(currentAnimation, SIGNAL(finished()), q, SLOT(_q_uncontrolledAnimationFinished()));
+
+    if ((direction == QAbstractAnimation::Forward && currentAnimation == animations.last())
+        || (direction == QAbstractAnimation::Backward && currentAnimationIndex == 0)) {
+        // we don't handle looping of a group with undefined duration
+        q->stop();
+    } else if (direction == QAbstractAnimation::Forward) {
+        // set the current animation to be the next one
+        setCurrentAnimation(currentAnimationIndex + 1);
+    } else {
+        // set the current animation to be the previous one
+        setCurrentAnimation(currentAnimationIndex - 1);
+    }
+}
+
+/*!
+    \internal
+    This method is called whenever an animation is added to
+    the group at index \a index.
+    Note: We only support insertion after the current animation
+*/
+void QSequentialAnimationGroupPrivate::animationInsertedAt(int index)
+{
+    if (currentAnimation == 0)
+        setCurrentAnimation(0); // initialize the current animation
+
+    if (currentAnimationIndex == index
+        && currentAnimation->currentTime() == 0 && currentAnimation->currentIteration() == 0) {
+            //in this case we simply insert an animation before the current one has actually started
+            setCurrentAnimation(index);
+    }
+
+    //we update currentAnimationIndex in case it has changed (the animation pointer is still valid)
+    currentAnimationIndex = animations.indexOf(currentAnimation);
+
+    if (index < currentAnimationIndex || currentIteration != 0) {
+        qWarning("QSequentialGroup::insertAnimationAt only supports to add animations after the current one.");
+        return; //we're not affected because it is added after the current one
+    }
+}
+
+/*!
+    \internal
+    This method is called whenever an animation is removed from
+    the group at index \a index. The animation is no more listed when this
+    method is called.
+*/
+void QSequentialAnimationGroupPrivate::animationRemovedAt(int index)
+{
+    Q_Q(QSequentialAnimationGroup);
+    QAnimationGroupPrivate::animationRemovedAt(index);
+
+    Q_ASSERT(currentAnimation); // currentAnimation should always be set
+
+    if (actualDuration.size() > index)
+        actualDuration.removeAt(index);
+
+    const int currentIndex = animations.indexOf(currentAnimation);
+    if (currentIndex == -1) {
+        //we're removing the current animation, let's update it to another one
+        if (index < animations.count())
+            setCurrentAnimation(index); //let's try to take the next one
+        else if (index > 0)
+            setCurrentAnimation(index - 1);
+        else// case all animations were removed
+            setCurrentAnimation(-1);
+    } else if (currentAnimationIndex > index) {
+        currentAnimationIndex--;
+    }
+
+    // duration of the previous animations up to the current animation
+    currentTime = 0;
+    for (int i = 0; i < currentAnimationIndex; ++i) {
+        const int current = animationActualTotalDuration(i);
+        currentTime += current;
+    }
+
+    if (currentIndex != -1) {
+        //the current animation is not the one being removed
+        //so we add its current time to the current time of this group
+        currentTime += QAbstractAnimationPrivate::get(currentAnimation)->totalCurrentTime;
+    }
+
+    //let's also update the total current time
+    totalCurrentTime = currentTime + iterationCount * q->duration();
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qsequentialanimationgroup.cpp"
+
+#endif //QT_NO_ANIMATION
diff --git a/src/corelib/animation/qsequentialanimationgroup.h b/src/corelib/animation/qsequentialanimationgroup.h
new file mode 100644
index 0000000..4c52d1b
--- /dev/null
+++ b/src/corelib/animation/qsequentialanimationgroup.h
@@ -0,0 +1,100 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSEQUENTIALANIMATIONGROUP_H
+#define QSEQUENTIALANIMATIONGROUP_H
+
+#if defined(QT_EXPERIMENTAL_SOLUTION)
+# include "qanimationgroup.h"
+#else
+# include <QtCore/qanimationgroup.h>
+#endif
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+#ifndef QT_NO_ANIMATION
+
+class QPauseAnimation;
+class QSequentialAnimationGroupPrivate;
+
+class Q_CORE_EXPORT QSequentialAnimationGroup : public QAnimationGroup
+{
+    Q_OBJECT
+    Q_PROPERTY(QAbstractAnimation* currentAnimation READ currentAnimation NOTIFY currentAnimationChanged)
+
+public:
+    QSequentialAnimationGroup(QObject *parent = 0);
+    ~QSequentialAnimationGroup();
+
+    QPauseAnimation *addPause(int msecs);
+    QPauseAnimation *insertPauseAt(int index, int msecs);
+
+    QAbstractAnimation *currentAnimation() const;
+    int duration() const;
+
+Q_SIGNALS:
+    void currentAnimationChanged(QAbstractAnimation *current);
+
+protected:
+    QSequentialAnimationGroup(QSequentialAnimationGroupPrivate &dd, QObject *parent);
+    bool event(QEvent *event);
+
+    void updateCurrentTime(int msecs);
+    void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);
+    void updateDirection(QAbstractAnimation::Direction direction);
+
+private:
+    Q_DISABLE_COPY(QSequentialAnimationGroup)
+    Q_DECLARE_PRIVATE(QSequentialAnimationGroup)
+    Q_PRIVATE_SLOT(d_func(), void _q_uncontrolledAnimationFinished())
+};
+
+#endif //QT_NO_ANIMATION
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif //QSEQUENTIALANIMATIONGROUP_H
diff --git a/src/corelib/animation/qsequentialanimationgroup_p.h b/src/corelib/animation/qsequentialanimationgroup_p.h
new file mode 100644
index 0000000..05d2a40
--- /dev/null
+++ b/src/corelib/animation/qsequentialanimationgroup_p.h
@@ -0,0 +1,111 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QSEQUENTIALANIMATIONGROUP_P_H
+#define QSEQUENTIALANIMATIONGROUP_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of QIODevice. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qsequentialanimationgroup.h"
+#include "qanimationgroup_p.h"
+
+
+QT_BEGIN_NAMESPACE
+
+class QSequentialAnimationGroupPrivate : public QAnimationGroupPrivate
+{
+    Q_DECLARE_PUBLIC(QSequentialAnimationGroup)
+public:
+    QSequentialAnimationGroupPrivate()
+        : currentAnimation(0), currentAnimationIndex(-1), lastIteration(0)
+    { }
+
+
+    struct AnimationIndex
+    {
+        AnimationIndex() : index(0), timeOffset(0) {}
+        // index points to the animation at timeOffset, skipping 0 duration animations.
+        // Note that the index semantic is slightly different depending on the direction.
+        int index; // the index of the animation in timeOffset
+        int timeOffset; // time offset when the animation at index starts.
+    };
+
+    int animationActualTotalDuration(int index) const;
+    AnimationIndex indexForTime(int msecs) const;
+
+    void setCurrentAnimation(int index, bool intermediate = false);
+    void activateCurrentAnimation(bool intermediate = false);
+
+    void animationInsertedAt(int index);
+    void animationRemovedAt(int index);
+
+    bool atEnd() const;
+
+    QAbstractAnimation *currentAnimation;
+    int currentAnimationIndex;
+
+    // this is the actual duration of uncontrolled animations
+    // it helps seeking and even going forward
+    QList<int> actualDuration;
+
+    void restart();
+    int lastIteration;
+
+    // handle time changes
+    void rewindForwards(const AnimationIndex &newAnimationIndex);
+    void advanceForwards(const AnimationIndex &newAnimationIndex);
+
+    // private slot
+    void _q_uncontrolledAnimationFinished();
+};
+
+QT_END_NAMESPACE
+
+#endif //QSEQUENTIALANIMATIONGROUP_P_H
diff --git a/src/corelib/animation/qvariantanimation.cpp b/src/corelib/animation/qvariantanimation.cpp
new file mode 100644
index 0000000..6b162ae
--- /dev/null
+++ b/src/corelib/animation/qvariantanimation.cpp
@@ -0,0 +1,599 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QT_NO_ANIMATION
+
+#include "qvariantanimation.h"
+#include "qvariantanimation_p.h"
+
+#include <QtCore/QRect>
+#include <QtCore/QLineF>
+#include <QtCore/QLine>
+#include <QtCore/QReadWriteLock>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \class QVariantAnimation
+    \ingroup animation
+    \brief The QVariantAnimation class provides an abstract base class for animations.
+    \since 4.5
+    \preliminary
+
+    This class is part of {The Animation Framework}. It serves as a base class
+    for property and item animations, with functions for shared functionality.
+
+    If you want to create an animation, you should look at QPropertyAnimation instead.
+
+    You can then set start and end values for the property by calling
+    setStartValue() and setEndValue(), and finally call start() to
+    start the animation. When control goes back to the event loop, QVariantAnimation
+    will interpolate the property of the target object and emit the valueChanged
+    signal. To react to a change in the current value you have to reimplement the
+    updateCurrentValue virtual method.
+
+    There are two ways to affect how QVariantAnimation interpolates the values.
+    You can set an easing curve by calling setEasingCurve(), and configure the
+    duration by calling setDuration(). You can change how the QVariants are
+    interpolated by creating a subclass of QVariantAnimation, and reimplementing the
+    virtual interpolated() function.
+
+
+    \sa QPropertyAnimation, {The Animation Framework}
+*/
+
+/*!
+    \fn void QVariantAnimation::valueChanged(const QVariant &value)
+
+    QVariantAnimation emits this signal whenever the current \a value changes.
+
+    \sa currentValue, startValue, endValue
+*/
+
+static bool animationValueLessThan(const QVariantAnimation::KeyValue &p1, const QVariantAnimation::KeyValue &p2)
+{
+    return p1.first < p2.first;
+}
+
+template<> Q_INLINE_TEMPLATE QRect _q_interpolate(const QRect &f, const QRect &t, qreal progress)
+{
+    QRect ret;
+    ret.setCoords(_q_interpolate(f.left(), t.left(), progress),
+                  _q_interpolate(f.top(), t.top(), progress),
+                  _q_interpolate(f.right(), t.right(), progress),
+                  _q_interpolate(f.bottom(), t.bottom(), progress));
+    return ret;
+}
+
+template<> Q_INLINE_TEMPLATE QRectF _q_interpolate(const QRectF &f, const QRectF &t, qreal progress)
+{
+    qreal x1, y1, w1, h1;
+    f.getRect(&x1, &y1, &w1, &h1);
+    qreal x2, y2, w2, h2;
+    t.getRect(&x2, &y2, &w2, &h2);
+    return QRectF( _q_interpolate(x1, x2, progress), _q_interpolate(y1, y2, progress),
+                  _q_interpolate(w1, w2, progress), _q_interpolate(h1, h2, progress));
+}
+
+template<> Q_INLINE_TEMPLATE QLine _q_interpolate(const QLine &f, const QLine &t, qreal progress)
+{
+    return QLine( _q_interpolate(f.p1(), t.p1(), progress), _q_interpolate(f.p2(), t.p2(), progress));
+}
+
+template<> Q_INLINE_TEMPLATE QLineF _q_interpolate(const QLineF &f, const QLineF &t, qreal progress)
+{
+    return QLineF( _q_interpolate(f.p1(), t.p1(), progress), _q_interpolate(f.p2(), t.p2(), progress));
+}
+
+void QVariantAnimationPrivate::convertValues(int t)
+{
+    //this ensures that all the keyValues are of type t
+    for (int i = 0; i < keyValues.count(); ++i) {
+        QVariantAnimation::KeyValue &pair = keyValues[i];
+        if (pair.second.userType() != t)
+            pair.second.convert(static_cast<QVariant::Type>(t));
+    }
+    currentInterval.start.first = 2; // this will force the refresh
+    interpolator = 0;               // if the type changed we need to update the interpolator
+}
+
+/*!
+    \fn void QVariantAnimation::updateCurrentValue(const QVariant &value) = 0;
+    This pure virtual function is called when the animated value is changed.
+    \a value is the new value.
+*/
+
+void QVariantAnimationPrivate::updateCurrentValue()
+{
+    Q_Q(QVariantAnimation);
+    const qreal progress = easing.valueForProgress(((duration == 0) ? qreal(1) : qreal(currentTime) / qreal(duration)));
+
+    if (progress < currentInterval.start.first || progress > currentInterval.end.first) {
+        //let's update currentInterval
+        QVariantAnimation::KeyValues::const_iterator itStart = qLowerBound(keyValues.constBegin(), keyValues.constEnd(), qMakePair(progress, QVariant()), animationValueLessThan);
+        QVariantAnimation::KeyValues::const_iterator itEnd = itStart;
+
+        // If we are at the end we should continue to use the last keyValues in case of extrapolation (progress > 1.0).
+        // This is because the easing function can return a value slightly outside the range [0, 1]
+        if (itStart != keyValues.constEnd()) {
+
+            //this can't happen because we always prepend the default start value there
+            if (itStart == keyValues.begin()) {
+                ++itEnd;
+                if (itEnd == keyValues.constEnd())
+                    return; //there is no upper bound
+            } else {
+                --itStart;
+            }
+
+            //update all the values of the currentInterval
+            currentInterval.start = *itStart;
+            currentInterval.end = *itEnd;
+        }
+    }
+
+    const qreal startProgress = currentInterval.start.first,
+                endProgress = currentInterval.end.first;
+    const qreal localProgress = (progress - startProgress) / (endProgress - startProgress);
+
+    bool changed = false;
+    {
+      //we do that here in a limited scope so that ret is dereferenced and frees memory
+      //and the call to updateCurrentValue can recreate QVariant of the same type (for ex. in
+      //QGraphicsItem::setPos
+      QVariant ret = q->interpolated(currentInterval.start.second,
+                                    currentInterval.end.second,
+                                    localProgress);
+      if (currentValue != ret) {
+          changed = true;
+          qSwap(currentValue, ret);
+      }
+    }
+
+    if (changed) {
+        //the value has changed
+        q->updateCurrentValue(currentValue);
+#ifndef QT_EXPERIMENTAL_SOLUTION
+        if (connectedSignals & changedSignalMask)
+#endif
+            emit q->valueChanged(currentValue);
+    }
+}
+
+
+QVariant QVariantAnimationPrivate::valueAt(qreal step) const
+{
+    QVariantAnimation::KeyValues::const_iterator result =
+        qBinaryFind(keyValues.begin(), keyValues.end(), qMakePair(step, QVariant()), animationValueLessThan);
+    if (result != keyValues.constEnd())
+        return result->second;
+
+    return QVariant();
+}
+
+
+void QVariantAnimationPrivate::setValueAt(qreal step, const QVariant &value)
+{
+    if (step < qreal(0.0) || step > qreal(1.0)) {
+        qWarning("QVariantAnimation::setValueAt: invalid step = %f", step);
+        return;
+    }
+
+    QVariantAnimation::KeyValue pair(step, value);
+
+    QVariantAnimation::KeyValues::iterator result = qLowerBound(keyValues.begin(), keyValues.end(), pair, animationValueLessThan);
+    if (result == keyValues.end() || result->first != step) {
+        keyValues.insert(result, pair);
+    } else {
+        if (value.isValid())
+            result->second = value; //remove the previous value
+        else if (step == 0 && !hasStartValue && defaultStartValue.isValid())
+            result->second = defaultStartValue; //we reset to the default start value
+        else
+            keyValues.erase(result); //replace the previous value
+    }
+
+    currentInterval.start.first = 2; // this will force the refresh
+    updateCurrentValue();
+}
+
+void QVariantAnimationPrivate::setDefaultStartValue(const QVariant &value)
+{
+    defaultStartValue = value;
+    if (!hasStartValue)
+      setValueAt(0, value);
+}
+
+/*!
+    Construct a QVariantAnimation object. \a parent is passed to QAbstractAnimation's
+    constructor.
+*/
+QVariantAnimation::QVariantAnimation(QObject *parent) : QAbstractAnimation(*new QVariantAnimationPrivate, parent)
+{
+   d_func()->init();
+}
+
+/*!
+    \internal
+*/
+QVariantAnimation::QVariantAnimation(QVariantAnimationPrivate &dd, QObject *parent) : QAbstractAnimation(dd, parent)
+{
+   d_func()->init();
+}
+
+/*!
+    Destroys the animation.
+*/
+QVariantAnimation::~QVariantAnimation()
+{
+}
+
+/*!
+    \property QVariantAnimation::easingCurve
+    \brief the easing curve of the animation
+
+    This property defines the easing curve of the animation. By default, a
+    linear easing curve is used, resulting in linear interpolation of the
+    end property. For many animations, it's useful to try different easing
+    curves, including QEasingCurve::InCirc, which provides a circular entry curve,
+    and QEasingCurve::InOutElastic, which provides an elastic effect on the values
+    of the interpolated property.
+
+    The easing curve is used with the interpolator, the interpolated() virtual
+    function, the animation's duration, and iterationCount, to control how the
+    current value changes as the animation progresses.
+*/
+QEasingCurve QVariantAnimation::easingCurve() const
+{
+    Q_D(const QVariantAnimation);
+    return d->easing;
+}
+
+void QVariantAnimation::setEasingCurve(const QEasingCurve &easing)
+{
+    Q_D(QVariantAnimation);
+    d->easing = easing;
+    d->updateCurrentValue();
+}
+
+Q_GLOBAL_STATIC(QVector<QVariantAnimation::Interpolator>, registeredInterpolators)
+Q_GLOBAL_STATIC(QReadWriteLock, registeredInterpolatorsLock)
+
+/*!
+    \fn void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress))
+    \relates QVariantAnimation
+    \threadsafe
+
+    Registers a custom interpolator \a func for the template type \c{T}.
+    The interpolator has to be registered before the animation is constructed.
+    To unregister (and use the default interpolator) set \a func to 0.
+ */
+
+/*!
+    \internal
+    \typedef QVariantAnimation::Interpolator
+
+    This is a typedef for a pointer to a function with the following
+    signature:
+    \code
+    QVariant myInterpolator(const QVariant &from, const QVariant &to, qreal progress);
+    \endcode
+
+*/
+
+/*! \internal
+ * Registers a custom interpolator \a func for the specific \a interpolationType.
+ * The interpolator has to be registered before the animation is constructed.
+ * To unregister (and use the default interpolator) set \a func to 0.
+ */
+void QVariantAnimation::registerInterpolator(QVariantAnimation::Interpolator func, int interpolationType)
+{
+    // will override any existing interpolators
+    QWriteLocker locker(registeredInterpolatorsLock());
+    if (int(interpolationType) >= registeredInterpolators()->count())
+        registeredInterpolators()->resize(int(interpolationType) + 1);
+    registeredInterpolators()->replace(interpolationType, func);
+}
+
+
+template<typename T> static inline QVariantAnimation::Interpolator castToInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress))
+{
+     return reinterpret_cast<QVariantAnimation::Interpolator>(func);
+}
+
+static QVariantAnimation::Interpolator getInterpolator(int interpolationType)
+{
+    QReadLocker locker(registeredInterpolatorsLock());
+    QVariantAnimation::Interpolator ret = 0;
+    if (interpolationType < registeredInterpolators()->count()) {
+        ret = registeredInterpolators()->at(interpolationType);
+        if (ret) return ret;
+    }
+
+    switch(interpolationType)
+    {
+    case QMetaType::Int:
+        return castToInterpolator(_q_interpolateVariant<int>);
+    case QMetaType::Double:
+        return castToInterpolator(_q_interpolateVariant<double>);
+    case QMetaType::Float:
+        return castToInterpolator(_q_interpolateVariant<float>);
+    case QMetaType::QLine:
+        return castToInterpolator(_q_interpolateVariant<QLine>);
+    case QMetaType::QLineF:
+        return castToInterpolator(_q_interpolateVariant<QLineF>);
+    case QMetaType::QPoint:
+        return castToInterpolator(_q_interpolateVariant<QPoint>);
+    case QMetaType::QPointF:
+        return castToInterpolator(_q_interpolateVariant<QPointF>);
+    case QMetaType::QSize:
+        return castToInterpolator(_q_interpolateVariant<QSize>);
+    case QMetaType::QSizeF:
+        return castToInterpolator(_q_interpolateVariant<QSizeF>);
+    case QMetaType::QRect:
+        return castToInterpolator(_q_interpolateVariant<QRect>);
+    case QMetaType::QRectF:
+        return castToInterpolator(_q_interpolateVariant<QRectF>);
+    default:
+        return 0; //this type is not handled
+    }
+}
+
+/*!
+    \property QVariantAnimation::duration
+    \brief the duration of the animation
+
+    This property describes the duration of the animation. The default
+    duration is 250 milliseconds.
+
+    \sa QAbstractAnimation::duration()
+ */
+int QVariantAnimation::duration() const
+{
+    Q_D(const QVariantAnimation);
+    return d->duration;
+}
+
+void QVariantAnimation::setDuration(int msecs)
+{
+    Q_D(QVariantAnimation);
+    if (msecs < 0) {
+        qWarning("QVariantAnimation::setDuration: cannot set a negative duration");
+        return;
+    }
+    if (d->duration == msecs)
+        return;
+    d->duration = msecs;
+    d->updateCurrentValue();
+}
+
+/*!
+    \property QVariantAnimation::startValue
+    \brief the optional start value of the animation
+
+    This property describes the optional start value of the animation. If
+    omitted, or if a null QVariant is assigned as the start value, the
+    animation will use the current position of the end when the animation
+    is started.
+
+    \sa endValue
+*/
+QVariant QVariantAnimation::startValue() const
+{
+    return keyValueAt(0);
+}
+
+void QVariantAnimation::setStartValue(const QVariant &value)
+{
+    setKeyValueAt(0, value);
+}
+
+/*!
+    \property QVariantAnimation::endValue
+    \brief the end value of the animation
+
+    This property describes the end value of the animation.
+
+    \sa startValue
+ */
+QVariant QVariantAnimation::endValue() const
+{
+    return keyValueAt(1);
+}
+
+void QVariantAnimation::setEndValue(const QVariant &value)
+{
+    setKeyValueAt(1, value);
+}
+
+
+/*!
+    Returns the key frame value for the given \a step. The given \a step
+    must be in the range 0 to 1. If there is no KeyValue for \a step,
+    it returns an invalid QVariant.
+
+    \sa keyValues(), setKeyValueAt()
+*/
+QVariant QVariantAnimation::keyValueAt(qreal step) const
+{
+    Q_D(const QVariantAnimation);
+    if (step == 0 && !d->hasStartValue)
+        return QVariant(); //special case where we don't have an explicit startValue
+
+    return d->valueAt(step);
+}
+
+/*!
+    \typedef QVariantAnimation::KeyValue
+
+    This is a typedef for QPair<qreal, QVariant>.
+*/
+/*!
+    \typedef QVariantAnimation::KeyValues
+
+    This is a typedef for QVector<KeyValue>
+*/
+
+/*!
+    Creates a key frame at the given \a step with the given \a value.
+    The given \a step must be in the range 0 to 1.
+
+    \sa setKeyValues(), keyValueAt()
+*/
+void QVariantAnimation::setKeyValueAt(qreal step, const QVariant &value)
+{
+    Q_D(QVariantAnimation);
+    if (step == 0)
+        d->hasStartValue = value.isValid();
+    d->setValueAt(step, value);
+}
+
+/*!
+    Returns the key frames of this animation.
+
+    \sa keyValueAt(), setKeyValues()
+*/
+QVariantAnimation::KeyValues QVariantAnimation::keyValues() const
+{
+    Q_D(const QVariantAnimation);
+    QVariantAnimation::KeyValues ret = d->keyValues;
+    //in case we added the default start value, we remove it
+    if (!d->hasStartValue && !ret.isEmpty() && ret.at(0).first == 0)
+        ret.remove(0);
+    return ret;
+}
+
+/*!
+    Replaces the current set of key frames with the given \a keyValues.
+    the step of the key frames must be in the range 0 to 1.
+
+    \sa keyValues(), keyValueAt()
+*/
+void QVariantAnimation::setKeyValues(const KeyValues &keyValues)
+{
+    Q_D(QVariantAnimation);
+    d->keyValues = keyValues;
+    qSort(d->keyValues.begin(), d->keyValues.end(), animationValueLessThan);
+    d->currentInterval.start.first = 2; // this will force the refresh
+    d->hasStartValue = !d->keyValues.isEmpty() && d->keyValues.at(0).first == 0;
+}
+
+/*!
+    \property QVariantAnimation::currentValue
+    \brief the current value of the animation
+
+    This property describes the current value; an interpolation between the
+    start value and the end value, using the current time for progress.
+
+    QVariantAnimation calls the virtual updateCurrentValue() function when the
+    current value changes. This is particularily useful for subclasses that
+    need to track updates.
+
+    \sa startValue, endValue
+ */
+QVariant QVariantAnimation::currentValue() const
+{
+    Q_D(const QVariantAnimation);
+    if (!d->currentValue.isValid())
+        const_cast<QVariantAnimationPrivate*>(d)->updateCurrentValue();
+    return d->currentValue;
+}
+
+/*!
+    \reimp
+ */
+bool QVariantAnimation::event(QEvent *event)
+{
+    return QAbstractAnimation::event(event);
+}
+
+/*!
+    \reimp
+*/
+void QVariantAnimation::updateState(QAbstractAnimation::State oldState,
+                             QAbstractAnimation::State newState)
+{
+    Q_UNUSED(oldState);
+    Q_UNUSED(newState);
+    Q_D(QVariantAnimation);
+    d->currentValue = QVariant(); // this will force the refresh
+}
+
+/*!
+    This virtual function returns the linear interpolation between variants \a
+    from and \a to, at \a progress, usually a value between 0 and 1. You can reimplement
+    this function in a subclass of QVariantAnimation to provide your own interpolation
+    algorithm. Note that in order for the interpolation to work with a QEasingCurve
+    that return a value smaller than 0 or larger than 1 (such as QEasingCurve::InBack)
+    you should make sure that it can extrapolate. If the semantic of the datatype
+    does not allow extrapolation this function should handle that gracefully.
+
+    \sa QEasingCurve
+ */
+QVariant QVariantAnimation::interpolated(const QVariant &from, const QVariant &to, qreal progress) const
+{
+    Q_D(const QVariantAnimation);
+    if (d->interpolator == 0) {
+        if (from.userType() == to.userType())
+            d->interpolator = getInterpolator(from.userType());
+        if (d->interpolator == 0) //no interpolator found
+            return QVariant();
+    }
+
+    return d->interpolator(from.constData(), to.constData(), progress);
+}
+
+/*!
+    \reimp
+ */
+void QVariantAnimation::updateCurrentTime(int msecs)
+{
+    Q_D(QVariantAnimation);
+    Q_UNUSED(msecs);
+    d->updateCurrentValue();
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qvariantanimation.cpp"
+
+#endif //QT_NO_ANIMATION
diff --git a/src/corelib/animation/qvariantanimation.h b/src/corelib/animation/qvariantanimation.h
new file mode 100644
index 0000000..7ce597f
--- /dev/null
+++ b/src/corelib/animation/qvariantanimation.h
@@ -0,0 +1,136 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QANIMATION_H
+#define QANIMATION_H
+
+#if defined(QT_EXPERIMENTAL_SOLUTION)
+# include "qabstractanimation.h"
+# include "qeasingcurve.h"
+#else
+# include <QtCore/qeasingcurve.h>
+# include <QtCore/qabstractanimation.h>
+#endif
+#include <QtCore/qlist.h>
+#include <QtCore/qpoint.h>
+#include <QtCore/qvariant.h>
+#include <QtCore/qpair.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Core)
+
+#ifndef QT_NO_ANIMATION
+
+class QVariantAnimationPrivate;
+class Q_CORE_EXPORT QVariantAnimation : public QAbstractAnimation
+{
+    Q_OBJECT
+    Q_PROPERTY(QVariant startValue READ startValue WRITE setStartValue)
+    Q_PROPERTY(QVariant endValue READ endValue WRITE setEndValue)
+    Q_PROPERTY(QVariant currentValue READ currentValue NOTIFY currentValueChanged)
+    Q_PROPERTY(int duration READ duration WRITE setDuration)
+    Q_PROPERTY(QEasingCurve easingCurve READ easingCurve WRITE setEasingCurve)
+
+public:
+    typedef QPair<qreal, QVariant> KeyValue;
+    typedef QVector<KeyValue> KeyValues;
+
+    QVariantAnimation(QObject *parent = 0);
+    ~QVariantAnimation();
+
+    QVariant startValue() const;
+    void setStartValue(const QVariant &value);
+
+    QVariant endValue() const;
+    void setEndValue(const QVariant &value);
+
+    QVariant keyValueAt(qreal step) const;
+    void setKeyValueAt(qreal step, const QVariant &value);
+
+    KeyValues keyValues() const;
+    void setKeyValues(const KeyValues &values);
+
+    QVariant currentValue() const;
+
+    int duration() const;
+    void setDuration(int msecs);
+
+    QEasingCurve easingCurve() const;
+    void setEasingCurve(const QEasingCurve &easing);
+
+    typedef QVariant (*Interpolator)(const void *from, const void *to, qreal progress);
+
+Q_SIGNALS:
+    void valueChanged(const QVariant &value);
+
+protected:
+    QVariantAnimation(QVariantAnimationPrivate &dd, QObject *parent = 0);
+    bool event(QEvent *event);
+
+    void updateCurrentTime(int msecs);
+    void updateState(QAbstractAnimation::State oldState, QAbstractAnimation::State newState);
+
+    virtual void updateCurrentValue(const QVariant &value) = 0;
+    virtual QVariant interpolated(const QVariant &from, const QVariant &to, qreal progress) const;
+
+private:
+    template <typename T> friend void qRegisterAnimationInterpolator(QVariant (*func)(const T &, const T &, qreal));
+    static void registerInterpolator(Interpolator func, int interpolationType);
+
+    Q_DISABLE_COPY(QVariantAnimation)
+    Q_DECLARE_PRIVATE(QVariantAnimation)
+};
+
+template <typename T>
+static void qRegisterAnimationInterpolator(QVariant (*func)(const T &from, const T &to, qreal progress)) {
+    QVariantAnimation::registerInterpolator(reinterpret_cast<QVariantAnimation::Interpolator>(func), qMetaTypeId<T>());
+}
+
+#endif //QT_NO_ANIMATION
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif //QANIMATION_H
diff --git a/src/corelib/animation/qvariantanimation_p.h b/src/corelib/animation/qvariantanimation_p.h
new file mode 100644
index 0000000..e468ac9
--- /dev/null
+++ b/src/corelib/animation/qvariantanimation_p.h
@@ -0,0 +1,143 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the QtCore 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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QANIMATION_P_H
+#define QANIMATION_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists for the convenience
+// of QIODevice. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include "qvariantanimation.h"
+#if defined(QT_EXPERIMENTAL_SOLUTION)
+# include "qeasingcurve.h"
+#else
+# include <QtCore/qeasingcurve.h>
+#endif
+#include <QtCore/qmetaobject.h>
+#include <QtCore/qvector.h>
+
+#include "qabstractanimation_p.h"
+
+QT_BEGIN_NAMESPACE
+
+class Q_CORE_EXPORT QVariantAnimationPrivate : public QAbstractAnimationPrivate
+{
+    Q_DECLARE_PUBLIC(QVariantAnimation)
+public:
+
+    QVariantAnimationPrivate() : duration(250), hasStartValue(false)
+    {
+    }
+
+    void init()
+    {
+        //we keep the mask so that we emit valueChanged only when needed (for performance reasons)
+        changedSignalMask = (1 << q_func()->metaObject()->indexOfSignal("valueChanged(QVariant)"));
+        currentInterval.start.first = currentInterval.end.first = 2; //will force the initial refresh
+        interpolator = 0;
+    }
+
+    static QVariantAnimationPrivate *get(QVariantAnimation *q)
+    {
+        return q->d_func();
+    }
+
+    
+    //some helper functions
+    bool atBeginning() const
+    {
+        return currentTime == 0;
+    }
+
+    bool atEnd() const
+    {
+        return currentTime == duration && currentIteration == (iterationCount - 1);
+    }
+
+    void setDefaultStartValue(const QVariant &value);
+
+    int duration;
+    QEasingCurve easing;
+
+    QVariantAnimation::KeyValues keyValues;
+    QVariant currentValue;
+    QVariant defaultStartValue;
+    bool hasStartValue;
+   
+    //this is used to keep track of the KeyValue interval in which we currently are
+    struct
+    {
+        QVariantAnimation::KeyValue start, end;
+    } currentInterval;
+
+    mutable QVariantAnimation::Interpolator interpolator;
+
+    quint32 changedSignalMask;
+
+    void updateCurrentValue();
+    void setValueAt(qreal, const QVariant &);
+    QVariant valueAt(qreal step) const;
+    void convertValues(int t);
+};
+
+//this should make the interpolation faster
+template<typename T> inline T _q_interpolate(const T &f, const T &t, qreal progress)
+{
+    return T(f + (t - f) * progress);
+}
+
+template<typename T > inline QVariant _q_interpolateVariant(const T &from, const T &to, qreal progress)
+{
+    return _q_interpolate(from, to, progress);
+}
+
+
+QT_END_NAMESPACE
+
+#endif //QANIMATION_P_H