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** This file is part of the QtDeclarative module of the Qt Toolkit.
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** Public License version 3.0 as published by the Free Software Foundation
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****************************************************************************/

#include "qquickanimation_p.h"
#include "qquickanimation_p_p.h"
#include "qquickstateoperations_p.h"

#include <private/qdeclarativeproperty_p.h>
#include <private/qdeclarativepath_p.h>

#include <QtDeclarative/qdeclarativeinfo.h>
#include <QtCore/qmath.h>
#include <QtCore/qsequentialanimationgroup.h>
#include <QtCore/qparallelanimationgroup.h>
#include <QtGui/qtransform.h>

QT_BEGIN_NAMESPACE

QQuickParentAnimation::QQuickParentAnimation(QObject *parent)
    : QDeclarativeAnimationGroup(*(new QQuickParentAnimationPrivate), parent)
{
    Q_D(QQuickParentAnimation);
    d->topLevelGroup = new QSequentialAnimationGroup;
    QDeclarative_setParent_noEvent(d->topLevelGroup, this);

    d->startAction = new QActionAnimation;
    QDeclarative_setParent_noEvent(d->startAction, d->topLevelGroup);
    d->topLevelGroup->addAnimation(d->startAction);

    d->ag = new QParallelAnimationGroup;
    QDeclarative_setParent_noEvent(d->ag, d->topLevelGroup);
    d->topLevelGroup->addAnimation(d->ag);

    d->endAction = new QActionAnimation;
    QDeclarative_setParent_noEvent(d->endAction, d->topLevelGroup);
    d->topLevelGroup->addAnimation(d->endAction);
}

QQuickParentAnimation::~QQuickParentAnimation()
{
}

QQuickItem *QQuickParentAnimation::target() const
{
    Q_D(const QQuickParentAnimation);
    return d->target;
}

void QQuickParentAnimation::setTarget(QQuickItem *target)
{
    Q_D(QQuickParentAnimation);
    if (target == d->target)
        return;

    d->target = target;
    emit targetChanged();
}

QQuickItem *QQuickParentAnimation::newParent() const
{
    Q_D(const QQuickParentAnimation);
    return d->newParent;
}

void QQuickParentAnimation::setNewParent(QQuickItem *newParent)
{
    Q_D(QQuickParentAnimation);
    if (newParent == d->newParent)
        return;

    d->newParent = newParent;
    emit newParentChanged();
}

QQuickItem *QQuickParentAnimation::via() const
{
    Q_D(const QQuickParentAnimation);
    return d->via;
}

void QQuickParentAnimation::setVia(QQuickItem *via)
{
    Q_D(QQuickParentAnimation);
    if (via == d->via)
        return;

    d->via = via;
    emit viaChanged();
}

//### mirrors same-named function in QQuickItem
QPointF QQuickParentAnimationPrivate::computeTransformOrigin(QQuickItem::TransformOrigin origin, qreal width, qreal height) const
{
    switch (origin) {
    default:
    case QQuickItem::TopLeft:
        return QPointF(0, 0);
    case QQuickItem::Top:
        return QPointF(width / 2., 0);
    case QQuickItem::TopRight:
        return QPointF(width, 0);
    case QQuickItem::Left:
        return QPointF(0, height / 2.);
    case QQuickItem::Center:
        return QPointF(width / 2., height / 2.);
    case QQuickItem::Right:
        return QPointF(width, height / 2.);
    case QQuickItem::BottomLeft:
        return QPointF(0, height);
    case QQuickItem::Bottom:
        return QPointF(width / 2., height);
    case QQuickItem::BottomRight:
        return QPointF(width, height);
    }
}

void QQuickParentAnimation::transition(QDeclarativeStateActions &actions,
                        QDeclarativeProperties &modified,
                        TransitionDirection direction)
{
    Q_D(QQuickParentAnimation);

    struct QQuickParentAnimationData : public QAbstractAnimationAction
    {
        QQuickParentAnimationData() {}
        ~QQuickParentAnimationData() { qDeleteAll(pc); }

        QDeclarativeStateActions actions;
        //### reverse should probably apply on a per-action basis
        bool reverse;
        QList<QQuickParentChange *> pc;
        virtual void doAction()
        {
            for (int ii = 0; ii < actions.count(); ++ii) {
                const QDeclarativeAction &action = actions.at(ii);
                if (reverse)
                    action.event->reverse();
                else
                    action.event->execute();
            }
        }
    };

    QQuickParentAnimationData *data = new QQuickParentAnimationData;
    QQuickParentAnimationData *viaData = new QQuickParentAnimationData;

    bool hasExplicit = false;
    if (d->target && d->newParent) {
        data->reverse = false;
        QDeclarativeAction myAction;
        QQuickParentChange *pc = new QQuickParentChange;
        pc->setObject(d->target);
        pc->setParent(d->newParent);
        myAction.event = pc;
        data->pc << pc;
        data->actions << myAction;
        hasExplicit = true;
        if (d->via) {
            viaData->reverse = false;
            QDeclarativeAction myVAction;
            QQuickParentChange *vpc = new QQuickParentChange;
            vpc->setObject(d->target);
            vpc->setParent(d->via);
            myVAction.event = vpc;
            viaData->pc << vpc;
            viaData->actions << myVAction;
        }
        //### once actions have concept of modified,
        //    loop to match appropriate ParentChanges and mark as modified
    }

    if (!hasExplicit)
    for (int i = 0; i < actions.size(); ++i) {
        QDeclarativeAction &action = actions[i];
        if (action.event && action.event->typeName() == QLatin1String("ParentChange")
            && (!d->target || static_cast<QQuickParentChange*>(action.event)->object() == d->target)) {

            QQuickParentChange *pc = static_cast<QQuickParentChange*>(action.event);
            QDeclarativeAction myAction = action;
            data->reverse = action.reverseEvent;

            //### this logic differs from PropertyAnimation
            //    (probably a result of modified vs. done)
            if (d->newParent) {
                QQuickParentChange *epc = new QQuickParentChange;
                epc->setObject(static_cast<QQuickParentChange*>(action.event)->object());
                epc->setParent(d->newParent);
                myAction.event = epc;
                data->pc << epc;
                data->actions << myAction;
                pc = epc;
            } else {
                action.actionDone = true;
                data->actions << myAction;
            }

            if (d->via) {
                viaData->reverse = false;
                QDeclarativeAction myAction;
                QQuickParentChange *vpc = new QQuickParentChange;
                vpc->setObject(pc->object());
                vpc->setParent(d->via);
                myAction.event = vpc;
                viaData->pc << vpc;
                viaData->actions << myAction;
                QDeclarativeAction dummyAction;
                QDeclarativeAction &xAction = pc->xIsSet() && i < actions.size()-1 ? actions[++i] : dummyAction;
                QDeclarativeAction &yAction = pc->yIsSet() && i < actions.size()-1 ? actions[++i] : dummyAction;
                QDeclarativeAction &sAction = pc->scaleIsSet() && i < actions.size()-1 ? actions[++i] : dummyAction;
                QDeclarativeAction &rAction = pc->rotationIsSet() && i < actions.size()-1 ? actions[++i] : dummyAction;
                QQuickItem *target = pc->object();
                QQuickItem *targetParent = action.reverseEvent ? pc->originalParent() : pc->parent();

                //### this mirrors the logic in QQuickParentChange.
                bool ok;
                const QTransform &transform = targetParent->itemTransform(d->via, &ok);
                if (transform.type() >= QTransform::TxShear || !ok) {
                    qmlInfo(this) << QQuickParentAnimation::tr("Unable to preserve appearance under complex transform");
                    ok = false;
                }

                qreal scale = 1;
                qreal rotation = 0;
                bool isRotate = (transform.type() == QTransform::TxRotate) || (transform.m11() < 0);
                if (ok && !isRotate) {
                    if (transform.m11() == transform.m22())
                        scale = transform.m11();
                    else {
                        qmlInfo(this) << QQuickParentAnimation::tr("Unable to preserve appearance under non-uniform scale");
                        ok = false;
                    }
                } else if (ok && isRotate) {
                    if (transform.m11() == transform.m22())
                        scale = qSqrt(transform.m11()*transform.m11() + transform.m12()*transform.m12());
                    else {
                        qmlInfo(this) << QQuickParentAnimation::tr("Unable to preserve appearance under non-uniform scale");
                        ok = false;
                    }

                    if (scale != 0)
                        rotation = atan2(transform.m12()/scale, transform.m11()/scale) * 180/M_PI;
                    else {
                        qmlInfo(this) << QQuickParentAnimation::tr("Unable to preserve appearance under scale of 0");
                        ok = false;
                    }
                }

                const QPointF &point = transform.map(QPointF(xAction.toValue.toReal(),yAction.toValue.toReal()));
                qreal x = point.x();
                qreal y = point.y();
                if (ok && target->transformOrigin() != QQuickItem::TopLeft) {
                    qreal w = target->width();
                    qreal h = target->height();
                    if (pc->widthIsSet() && i < actions.size() - 1)
                        w = actions[++i].toValue.toReal();
                    if (pc->heightIsSet() && i < actions.size() - 1)
                        h = actions[++i].toValue.toReal();
                    const QPointF &transformOrigin
                            = d->computeTransformOrigin(target->transformOrigin(), w,h);
                    qreal tempxt = transformOrigin.x();
                    qreal tempyt = transformOrigin.y();
                    QTransform t;
                    t.translate(-tempxt, -tempyt);
                    t.rotate(rotation);
                    t.scale(scale, scale);
                    t.translate(tempxt, tempyt);
                    const QPointF &offset = t.map(QPointF(0,0));
                    x += offset.x();
                    y += offset.y();
                }

                if (ok) {
                    //qDebug() << x << y << rotation << scale;
                    xAction.toValue = x;
                    yAction.toValue = y;
                    sAction.toValue = sAction.toValue.toReal() * scale;
                    rAction.toValue = rAction.toValue.toReal() + rotation;
                }
            }
        }
    }

    if (data->actions.count()) {
        if (direction == QDeclarativeAbstractAnimation::Forward) {
            d->startAction->setAnimAction(d->via ? viaData : data, QActionAnimation::DeleteWhenStopped);
            d->endAction->setAnimAction(d->via ? data : 0, QActionAnimation::DeleteWhenStopped);
        } else {
            d->endAction->setAnimAction(d->via ? viaData : data, QActionAnimation::DeleteWhenStopped);
            d->startAction->setAnimAction(d->via ? data : 0, QActionAnimation::DeleteWhenStopped);
        }
    } else {
        delete data;
        delete viaData;
    }

    //take care of any child animations
    bool valid = d->defaultProperty.isValid();
    for (int ii = 0; ii < d->animations.count(); ++ii) {
        if (valid)
            d->animations.at(ii)->setDefaultTarget(d->defaultProperty);
        d->animations.at(ii)->transition(actions, modified, direction);
    }

}

QAbstractAnimation *QQuickParentAnimation::qtAnimation()
{
    Q_D(QQuickParentAnimation);
    return d->topLevelGroup;
}

QQuickAnchorAnimation::QQuickAnchorAnimation(QObject *parent)
: QDeclarativeAbstractAnimation(*(new QQuickAnchorAnimationPrivate), parent)
{
    Q_D(QQuickAnchorAnimation);
    d->va = new QDeclarativeBulkValueAnimator;
    QDeclarative_setParent_noEvent(d->va, this);
}

QQuickAnchorAnimation::~QQuickAnchorAnimation()
{
}

QAbstractAnimation *QQuickAnchorAnimation::qtAnimation()
{
    Q_D(QQuickAnchorAnimation);
    return d->va;
}

QDeclarativeListProperty<QQuickItem> QQuickAnchorAnimation::targets()
{
    Q_D(QQuickAnchorAnimation);
    return QDeclarativeListProperty<QQuickItem>(this, d->targets);
}

int QQuickAnchorAnimation::duration() const
{
    Q_D(const QQuickAnchorAnimation);
    return d->va->duration();
}

void QQuickAnchorAnimation::setDuration(int duration)
{
    if (duration < 0) {
        qmlInfo(this) << tr("Cannot set a duration of < 0");
        return;
    }

    Q_D(QQuickAnchorAnimation);
    if (d->va->duration() == duration)
        return;
    d->va->setDuration(duration);
    emit durationChanged(duration);
}

QEasingCurve QQuickAnchorAnimation::easing() const
{
    Q_D(const QQuickAnchorAnimation);
    return d->va->easingCurve();
}

void QQuickAnchorAnimation::setEasing(const QEasingCurve &e)
{
    Q_D(QQuickAnchorAnimation);
    if (d->va->easingCurve() == e)
        return;

    d->va->setEasingCurve(e);
    emit easingChanged(e);
}

void QQuickAnchorAnimation::transition(QDeclarativeStateActions &actions,
                        QDeclarativeProperties &modified,
                        TransitionDirection direction)
{
    Q_UNUSED(modified);
    Q_D(QQuickAnchorAnimation);
    QDeclarativeAnimationPropertyUpdater *data = new QDeclarativeAnimationPropertyUpdater;
    data->interpolatorType = QMetaType::QReal;
    data->interpolator = d->interpolator;

    data->reverse = direction == Backward ? true : false;
    data->fromSourced = false;
    data->fromDefined = false;

    for (int ii = 0; ii < actions.count(); ++ii) {
        QDeclarativeAction &action = actions[ii];
        if (action.event && action.event->typeName() == QLatin1String("AnchorChanges")
            && (d->targets.isEmpty() || d->targets.contains(static_cast<QQuickAnchorChanges*>(action.event)->object()))) {
            data->actions << static_cast<QQuickAnchorChanges*>(action.event)->additionalActions();
        }
    }

    if (data->actions.count()) {
        if (!d->rangeIsSet) {
            d->va->setStartValue(qreal(0));
            d->va->setEndValue(qreal(1));
            d->rangeIsSet = true;
        }
        d->va->setAnimValue(data, QAbstractAnimation::DeleteWhenStopped);
        d->va->setFromSourcedValue(&data->fromSourced);
    } else {
        delete data;
    }
}

QQuickPathAnimation::QQuickPathAnimation(QObject *parent)
: QDeclarativeAbstractAnimation(*(new QQuickPathAnimationPrivate), parent)
{
    Q_D(QQuickPathAnimation);
    d->pa = new QDeclarativeBulkValueAnimator;
    QDeclarative_setParent_noEvent(d->pa, this);
}

QQuickPathAnimation::~QQuickPathAnimation()
{
}

int QQuickPathAnimation::duration() const
{
    Q_D(const QQuickPathAnimation);
    return d->pa->duration();
}

void QQuickPathAnimation::setDuration(int duration)
{
    if (duration < 0) {
        qmlInfo(this) << tr("Cannot set a duration of < 0");
        return;
    }

    Q_D(QQuickPathAnimation);
    if (d->pa->duration() == duration)
        return;
    d->pa->setDuration(duration);
    emit durationChanged(duration);
}

QEasingCurve QQuickPathAnimation::easing() const
{
    Q_D(const QQuickPathAnimation);
    return d->pa->easingCurve();
}

void QQuickPathAnimation::setEasing(const QEasingCurve &e)
{
    Q_D(QQuickPathAnimation);
    if (d->pa->easingCurve() == e)
        return;

    d->pa->setEasingCurve(e);
    emit easingChanged(e);
}

QDeclarativePath *QQuickPathAnimation::path() const
{
    Q_D(const QQuickPathAnimation);
    return d->path;
}

void QQuickPathAnimation::setPath(QDeclarativePath *path)
{
    Q_D(QQuickPathAnimation);
    if (d->path == path)
        return;

    d->path = path;
    emit pathChanged();
}

QQuickItem *QQuickPathAnimation::target() const
{
    Q_D(const QQuickPathAnimation);
    return d->target;
}

void QQuickPathAnimation::setTarget(QQuickItem *target)
{
    Q_D(QQuickPathAnimation);
    if (d->target == target)
        return;

    d->target = target;
    emit targetChanged();
}

QQuickPathAnimation::Orientation QQuickPathAnimation::orientation() const
{
    Q_D(const QQuickPathAnimation);
    return d->orientation;
}

void QQuickPathAnimation::setOrientation(Orientation orientation)
{
    Q_D(QQuickPathAnimation);
    if (d->orientation == orientation)
        return;

    d->orientation = orientation;
    emit orientationChanged(d->orientation);
}

QPointF QQuickPathAnimation::anchorPoint() const
{
    Q_D(const QQuickPathAnimation);
    return d->anchorPoint;
}

void QQuickPathAnimation::setAnchorPoint(const QPointF &point)
{
    Q_D(QQuickPathAnimation);
    if (d->anchorPoint == point)
        return;

    d->anchorPoint = point;
    emit anchorPointChanged(point);
}

qreal QQuickPathAnimation::orientationEntryInterval() const
{
    Q_D(const QQuickPathAnimation);
    return d->entryInterval;
}

void QQuickPathAnimation::setOrientationEntryInterval(qreal interval)
{
    Q_D(QQuickPathAnimation);
    if (d->entryInterval == interval)
        return;
    d->entryInterval = interval;
    emit orientationEntryIntervalChanged(interval);
}

qreal QQuickPathAnimation::orientationExitInterval() const
{
    Q_D(const QQuickPathAnimation);
    return d->exitInterval;
}

void QQuickPathAnimation::setOrientationExitInterval(qreal interval)
{
    Q_D(QQuickPathAnimation);
    if (d->exitInterval == interval)
        return;
    d->exitInterval = interval;
    emit orientationExitIntervalChanged(interval);
}

qreal QQuickPathAnimation::endRotation() const
{
    Q_D(const QQuickPathAnimation);
    return d->endRotation.isNull ? qreal(0) : d->endRotation.value;
}

void QQuickPathAnimation::setEndRotation(qreal rotation)
{
    Q_D(QQuickPathAnimation);
    if (!d->endRotation.isNull && d->endRotation == rotation)
        return;

    d->endRotation = rotation;
    emit endRotationChanged(d->endRotation);
}


QAbstractAnimation *QQuickPathAnimation::qtAnimation()
{
    Q_D(QQuickPathAnimation);
    return d->pa;
}

void QQuickPathAnimation::transition(QDeclarativeStateActions &actions,
                                           QDeclarativeProperties &modified,
                                           TransitionDirection direction)
{
    Q_D(QQuickPathAnimation);
    QQuickPathAnimationUpdater *data = new QQuickPathAnimationUpdater;

    data->orientation = d->orientation;
    data->anchorPoint = d->anchorPoint;
    data->entryInterval = d->entryInterval;
    data->exitInterval = d->exitInterval;
    data->endRotation = d->endRotation;
    data->reverse = direction == Backward ? true : false;
    data->fromSourced = false;
    data->fromDefined = (d->path && d->path->hasStartX() && d->path->hasStartY()) ? true : false;
    data->toDefined = d->path ? d->path->hasEnd() : false;
    int origModifiedSize = modified.count();

    for (int i = 0; i < actions.count(); ++i) {
        QDeclarativeAction &action = actions[i];
        if (action.event)
            continue;
        if (action.specifiedObject == d->target && action.property.name() == QLatin1String("x")) {
            data->toX = action.toValue.toReal();
            modified << action.property;
            action.fromValue = action.toValue;
        }
        if (action.specifiedObject == d->target && action.property.name() == QLatin1String("y")) {
            data->toY = action.toValue.toReal();
            modified << action.property;
            action.fromValue = action.toValue;
        }
    }

    if (d->target && d->path &&
        (modified.count() > origModifiedSize || data->toDefined)) {
        data->target = d->target;
        data->path = d->path;
        if (!d->rangeIsSet) {
            d->pa->setStartValue(qreal(0));
            d->pa->setEndValue(qreal(1));
            d->rangeIsSet = true;
        }
        /*
            NOTE: The following block relies on the fact that the previous value hasn't
            yet been deleted, and has the same target, etc, which may be a bit fragile.
         */
        if (d->pa->getAnimValue()) {
            QQuickPathAnimationUpdater *prevData = static_cast<QQuickPathAnimationUpdater*>(d->pa->getAnimValue());

            // get the original start angle that was used (so we can exactly reverse).
            data->startRotation = prevData->startRotation;

            // treat interruptions specially, otherwise we end up with strange paths
            if ((data->reverse || prevData->reverse) && prevData->currentV > 0 && prevData->currentV < 1) {
                if (!data->fromDefined && !data->toDefined && !prevData->painterPath.isEmpty()) {
                    QPointF pathPos = QDeclarativePath::sequentialPointAt(prevData->painterPath, prevData->pathLength, prevData->attributePoints, prevData->prevBez, prevData->currentV);
                    if (!prevData->anchorPoint.isNull())
                        pathPos -= prevData->anchorPoint;
                    if (pathPos == data->target->pos()) {   //only treat as interruption if we interrupted ourself
                        data->painterPath = prevData->painterPath;
                        data->toDefined = data->fromDefined = data->fromSourced = true;
                        data->prevBez.isValid = false;
                        data->interruptStart = prevData->currentV;
                        data->startRotation = prevData->startRotation;
                        data->pathLength = prevData->pathLength;
                        data->attributePoints = prevData->attributePoints;
                    }
                }
            }
        }
        d->pa->setFromSourcedValue(&data->fromSourced);
        d->pa->setAnimValue(data, QAbstractAnimation::DeleteWhenStopped);
    } else {
        d->pa->setFromSourcedValue(0);
        d->pa->setAnimValue(0, QAbstractAnimation::DeleteWhenStopped);
        delete data;
    }
}

void QQuickPathAnimationUpdater::setValue(qreal v)
{
    if (interruptStart.isValid()) {
        if (reverse)
            v = 1 - v;
        qreal end = reverse ? 0.0 : 1.0;
        v = interruptStart + v * (end-interruptStart);
    }
    currentV = v;
    bool atStart = ((reverse && v == 1.0) || (!reverse && v == 0.0));
    if (!fromSourced && (!fromDefined || !toDefined)) {
        qreal startX = reverse ? toX + anchorPoint.x() : target->x() + anchorPoint.x();
        qreal startY = reverse ? toY + anchorPoint.y() : target->y() + anchorPoint.y();
        qreal endX = reverse ? target->x() + anchorPoint.x() : toX + anchorPoint.x();
        qreal endY = reverse ? target->y() + anchorPoint.y() : toY + anchorPoint.y();

        prevBez.isValid = false;
        painterPath = path->createPath(QPointF(startX, startY), QPointF(endX, endY), QStringList(), pathLength, attributePoints);
        fromSourced = true;
    }

    qreal angle;
    bool fixed = orientation == QQuickPathAnimation::Fixed;
    QPointF currentPos = !painterPath.isEmpty() ? path->sequentialPointAt(painterPath, pathLength, attributePoints, prevBez, v, fixed ? 0 : &angle) : path->sequentialPointAt(v, fixed ? 0 : &angle);

    //adjust position according to anchor point
    if (!anchorPoint.isNull()) {
        currentPos -= anchorPoint;
        if (atStart) {
            if (!anchorPoint.isNull() && !fixed)
                target->setTransformOriginPoint(anchorPoint);
        }
    }

    //### could cache properties rather than reconstructing each time
    QDeclarativePropertyPrivate::write(QDeclarativeProperty(target, QStringLiteral("x")), currentPos.x(), QDeclarativePropertyPrivate::BypassInterceptor | QDeclarativePropertyPrivate::DontRemoveBinding);
    QDeclarativePropertyPrivate::write(QDeclarativeProperty(target, QStringLiteral("y")), currentPos.y(), QDeclarativePropertyPrivate::BypassInterceptor | QDeclarativePropertyPrivate::DontRemoveBinding);

    //adjust angle according to orientation
    if (!fixed) {
        switch (orientation) {
            case QQuickPathAnimation::RightFirst:
                angle = -angle;
                break;
            case QQuickPathAnimation::TopFirst:
                angle = -angle + 90;
                break;
            case QQuickPathAnimation::LeftFirst:
                angle = -angle + 180;
                break;
            case QQuickPathAnimation::BottomFirst:
                angle = -angle + 270;
                break;
            default:
                angle = 0;
                break;
        }

        if (atStart && !reverse) {
            startRotation = target->rotation();

            //shortest distance to correct orientation
            qreal diff = angle - startRotation;
            while (diff > 180.0) {
                startRotation.value += 360.0;
                diff -= 360.0;
            }
            while (diff < -180.0) {
                startRotation.value -= 360.0;
                diff += 360.0;
            }
        }

        //smoothly transition to the desired orientation
        if (startRotation.isValid()) {
            if (reverse && v == 0.0)
                angle = startRotation;
            else if (v < entryInterval)
                angle = angle * v / entryInterval + startRotation * (entryInterval - v) / entryInterval;
        }
        if (endRotation.isValid()) {
            qreal exitStart = 1 - exitInterval;
            if (!reverse && v == 1.0)
                angle = endRotation;
            else if (v > exitStart)
                angle = endRotation * (v - exitStart) / exitInterval + angle * (exitInterval - (v - exitStart)) / exitInterval;
        }
        QDeclarativePropertyPrivate::write(QDeclarativeProperty(target, QStringLiteral("rotation")), angle, QDeclarativePropertyPrivate::BypassInterceptor | QDeclarativePropertyPrivate::DontRemoveBinding);
    }

    /*
        NOTE: we don't always reset the transform origin, as it can cause a
        visual jump if ending on an angle. This means that in some cases
        (anchor point and orientation both specified, and ending at an angle)
        the transform origin will always be set after running the path animation.
     */
    if ((reverse && v == 0.0) || (!reverse && v == 1.0)) {
        if (!anchorPoint.isNull() && !fixed && qFuzzyIsNull(angle))
            target->setTransformOriginPoint(QPointF());
    }
}

QT_END_NAMESPACE