qdeclarativeanimation.cpp

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#include "private/qdeclarativeanimation_p.h"
#include "private/qdeclarativeanimation_p_p.h"

#include "private/qdeclarativebehavior_p.h"
#include "private/qdeclarativestateoperations_p.h"
#include "private/qdeclarativecontext_p.h"

#include <qdeclarativepropertyvaluesource.h>
#include <qdeclarative.h>
#include <qdeclarativeinfo.h>
#include <qdeclarativeexpression.h>
#include <qdeclarativestringconverters_p.h>
#include <qdeclarativeglobal_p.h>
#include <qdeclarativemetatype_p.h>
#include <qdeclarativevaluetype_p.h>
#include <qdeclarativeproperty_p.h>
#include <qdeclarativeengine_p.h>

#include <qvariant.h>
#include <qcolor.h>
#include <qfile.h>
#include <QParallelAnimationGroup>
#include <QSequentialAnimationGroup>
#include <QtCore/qset.h>
#include <QtCore/qrect.h>
#include <QtCore/qpoint.h>
#include <QtCore/qsize.h>
#include <QtCore/qmath.h>

#include <private/qvariantanimation_p.h>

QT_BEGIN_NAMESPACE

QDeclarativeAbstractAnimation::QDeclarativeAbstractAnimation(QObject *parent)
: QObject(*(new QDeclarativeAbstractAnimationPrivate), parent)
{
}

QDeclarativeAbstractAnimation::~QDeclarativeAbstractAnimation()
{
}

QDeclarativeAbstractAnimation::QDeclarativeAbstractAnimation(QDeclarativeAbstractAnimationPrivate &dd, QObject *parent)
: QObject(dd, parent)
{
}

bool QDeclarativeAbstractAnimation::isRunning() const
{
    Q_D(const QDeclarativeAbstractAnimation);
    return d->running;
}

// the behavior calls this function
void QDeclarativeAbstractAnimation::notifyRunningChanged(bool running)
{
    Q_D(QDeclarativeAbstractAnimation);
    if (d->disableUserControl && d->running != running) {
        d->running = running;
        emit runningChanged(running);
    }
}

//commence is called to start an animation when it is used as a
//simple animation, and not as part of a transition
void QDeclarativeAbstractAnimationPrivate::commence()
{
    Q_Q(QDeclarativeAbstractAnimation);

    QDeclarativeStateActions actions;
    QDeclarativeProperties properties;
    q->transition(actions, properties, QDeclarativeAbstractAnimation::Forward);

    q->qtAnimation()->start();
    if (q->qtAnimation()->state() != QAbstractAnimation::Running) {
        running = false;
        emit q->completed();
    }
}

QDeclarativeProperty QDeclarativeAbstractAnimationPrivate::createProperty(QObject *obj, const QString &str, QObject *infoObj)
{
    QDeclarativeProperty prop(obj, str, qmlContext(infoObj));
    if (!prop.isValid()) {
        qmlInfo(infoObj) << QDeclarativeAbstractAnimation::tr("Cannot animate non-existent property \"%1\"").arg(str);
        return QDeclarativeProperty();
    } else if (!prop.isWritable()) {
        qmlInfo(infoObj) << QDeclarativeAbstractAnimation::tr("Cannot animate read-only property \"%1\"").arg(str);
        return QDeclarativeProperty();
    }
    return prop;
}

void QDeclarativeAbstractAnimation::setRunning(bool r)
{
    Q_D(QDeclarativeAbstractAnimation);
    if (!d->componentComplete) {
        d->running = r;
        if (r == false)
            d->avoidPropertyValueSourceStart = true;
        else if (!d->registered) {
            d->registered = true;
            QDeclarativeEnginePrivate *engPriv = QDeclarativeEnginePrivate::get(qmlEngine(this));
            engPriv->registerFinalizedParserStatusObject(this, this->metaObject()->indexOfSlot("componentFinalized()"));
        }
        return;
    }

    if (d->running == r)
        return;

    if (d->group || d->disableUserControl) {
        qmlInfo(this) << "setRunning() cannot be used on non-root animation nodes.";
        return;
    }

    d->running = r;
    if (d->running) {
        bool supressStart = false;
        if (d->alwaysRunToEnd && d->loopCount != 1
            && qtAnimation()->state() == QAbstractAnimation::Running) {
            //we've restarted before the final loop finished; restore proper loop count
            if (d->loopCount == -1)
                qtAnimation()->setLoopCount(d->loopCount);
            else
                qtAnimation()->setLoopCount(qtAnimation()->currentLoop() + d->loopCount);
            supressStart = true;    //we want the animation to continue, rather than restart
        }

        if (!d->connectedTimeLine) {
            QObject::connect(qtAnimation(), SIGNAL(finished()),
                             this, SLOT(timelineComplete()));
            d->connectedTimeLine = true;
        }
        if (!supressStart)
            d->commence();
        emit started();
    } else {
        if (d->alwaysRunToEnd) {
            if (d->loopCount != 1)
                qtAnimation()->setLoopCount(qtAnimation()->currentLoop()+1);    //finish the current loop
        } else
            qtAnimation()->stop();

        emit completed();
    }

    emit runningChanged(d->running);
}

bool QDeclarativeAbstractAnimation::isPaused() const
{
    Q_D(const QDeclarativeAbstractAnimation);
    return d->paused;
}

void QDeclarativeAbstractAnimation::setPaused(bool p)
{
    Q_D(QDeclarativeAbstractAnimation);
    if (d->paused == p)
        return;

    if (d->group || d->disableUserControl) {
        qmlInfo(this) << "setPaused() cannot be used on non-root animation nodes.";
        return;
    }

    d->paused = p;
    if (d->paused)
        qtAnimation()->pause();
    else
        qtAnimation()->resume();

    emit pausedChanged(d->paused);
}

void QDeclarativeAbstractAnimation::classBegin()
{
    Q_D(QDeclarativeAbstractAnimation);
    d->componentComplete = false;
}

void QDeclarativeAbstractAnimation::componentComplete()
{
    Q_D(QDeclarativeAbstractAnimation);
    d->componentComplete = true;
}

void QDeclarativeAbstractAnimation::componentFinalized()
{
    Q_D(QDeclarativeAbstractAnimation);
    if (d->running) {
        d->running = false;
        setRunning(true);
    }
}

bool QDeclarativeAbstractAnimation::alwaysRunToEnd() const
{
    Q_D(const QDeclarativeAbstractAnimation);
    return d->alwaysRunToEnd;
}

void QDeclarativeAbstractAnimation::setAlwaysRunToEnd(bool f)
{
    Q_D(QDeclarativeAbstractAnimation);
    if (d->alwaysRunToEnd == f)
        return;

    d->alwaysRunToEnd = f;
    emit alwaysRunToEndChanged(f);
}

int QDeclarativeAbstractAnimation::loops() const
{
    Q_D(const QDeclarativeAbstractAnimation);
    return d->loopCount;
}

void QDeclarativeAbstractAnimation::setLoops(int loops)
{
    Q_D(QDeclarativeAbstractAnimation);
    if (loops < 0)
        loops = -1;

    if (loops == d->loopCount)
        return;

    d->loopCount = loops;
    qtAnimation()->setLoopCount(loops);
    emit loopCountChanged(loops);
}


int QDeclarativeAbstractAnimation::currentTime()
{
    return qtAnimation()->currentLoopTime();
}

void QDeclarativeAbstractAnimation::setCurrentTime(int time)
{
    qtAnimation()->setCurrentTime(time);
}

QDeclarativeAnimationGroup *QDeclarativeAbstractAnimation::group() const
{
    Q_D(const QDeclarativeAbstractAnimation);
    return d->group;
}

void QDeclarativeAbstractAnimation::setGroup(QDeclarativeAnimationGroup *g)
{
    Q_D(QDeclarativeAbstractAnimation);
    if (d->group == g)
        return;
    if (d->group)
        static_cast<QDeclarativeAnimationGroupPrivate *>(d->group->d_func())->animations.removeAll(this);

    d->group = g;

    if (d->group && !static_cast<QDeclarativeAnimationGroupPrivate *>(d->group->d_func())->animations.contains(this))
        static_cast<QDeclarativeAnimationGroupPrivate *>(d->group->d_func())->animations.append(this);

    //if (g) //if removed from a group, then the group should no longer be the parent
        setParent(g);
}

void QDeclarativeAbstractAnimation::start()
{
    setRunning(true);
}

void QDeclarativeAbstractAnimation::pause()
{
    setPaused(true);
}

void QDeclarativeAbstractAnimation::resume()
{
    setPaused(false);
}

void QDeclarativeAbstractAnimation::stop()
{
    setRunning(false);
}

void QDeclarativeAbstractAnimation::restart()
{
    stop();
    start();
}

void QDeclarativeAbstractAnimation::complete()
{
    if (isRunning()) {
         qtAnimation()->setCurrentTime(qtAnimation()->duration());
    }
}

void QDeclarativeAbstractAnimation::setTarget(const QDeclarativeProperty &p)
{
    Q_D(QDeclarativeAbstractAnimation);
    d->defaultProperty = p;

    if (!d->avoidPropertyValueSourceStart)
        setRunning(true);
}

/*
    we rely on setTarget only being called when used as a value source
    so this function allows us to do the same thing as setTarget without
    that assumption
*/
void QDeclarativeAbstractAnimation::setDefaultTarget(const QDeclarativeProperty &p)
{
    Q_D(QDeclarativeAbstractAnimation);
    d->defaultProperty = p;
}

/*
    don't allow start/stop/pause/resume to be manually invoked,
    because something else (like a Behavior) already has control
    over the animation.
*/
void QDeclarativeAbstractAnimation::setDisableUserControl()
{
    Q_D(QDeclarativeAbstractAnimation);
    d->disableUserControl = true;
}

void QDeclarativeAbstractAnimation::transition(QDeclarativeStateActions &actions,
                                      QDeclarativeProperties &modified,
                                      TransitionDirection direction)
{
    Q_UNUSED(actions);
    Q_UNUSED(modified);
    Q_UNUSED(direction);
}

void QDeclarativeAbstractAnimation::timelineComplete()
{
    Q_D(QDeclarativeAbstractAnimation);
    setRunning(false);
    if (d->alwaysRunToEnd && d->loopCount != 1) {
        //restore the proper loopCount for the next run
        qtAnimation()->setLoopCount(d->loopCount);
    }
}

QDeclarativePauseAnimation::QDeclarativePauseAnimation(QObject *parent)
: QDeclarativeAbstractAnimation(*(new QDeclarativePauseAnimationPrivate), parent)
{
    Q_D(QDeclarativePauseAnimation);
    d->init();
}

QDeclarativePauseAnimation::~QDeclarativePauseAnimation()
{
}

void QDeclarativePauseAnimationPrivate::init()
{
    Q_Q(QDeclarativePauseAnimation);
    pa = new QPauseAnimation;
    QDeclarative_setParent_noEvent(pa, q);
}

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

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

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

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

QDeclarativeColorAnimation::QDeclarativeColorAnimation(QObject *parent)
: QDeclarativePropertyAnimation(parent)
{
    Q_D(QDeclarativePropertyAnimation);
    d->interpolatorType = QMetaType::QColor;
    d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType);
    d->defaultToInterpolatorType = true;
}

QDeclarativeColorAnimation::~QDeclarativeColorAnimation()
{
}

QColor QDeclarativeColorAnimation::from() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->from.value<QColor>();
}

void QDeclarativeColorAnimation::setFrom(const QColor &f)
{
    QDeclarativePropertyAnimation::setFrom(f);
}

QColor QDeclarativeColorAnimation::to() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->to.value<QColor>();
}

void QDeclarativeColorAnimation::setTo(const QColor &t)
{
    QDeclarativePropertyAnimation::setTo(t);
}



QDeclarativeScriptAction::QDeclarativeScriptAction(QObject *parent)
    :QDeclarativeAbstractAnimation(*(new QDeclarativeScriptActionPrivate), parent)
{
    Q_D(QDeclarativeScriptAction);
    d->init();
}

QDeclarativeScriptAction::~QDeclarativeScriptAction()
{
}

void QDeclarativeScriptActionPrivate::init()
{
    Q_Q(QDeclarativeScriptAction);
    rsa = new QActionAnimation(&proxy);
    QDeclarative_setParent_noEvent(rsa, q);
}

QDeclarativeScriptString QDeclarativeScriptAction::script() const
{
    Q_D(const QDeclarativeScriptAction);
    return d->script;
}

void QDeclarativeScriptAction::setScript(const QDeclarativeScriptString &script)
{
    Q_D(QDeclarativeScriptAction);
    d->script = script;
}

QString QDeclarativeScriptAction::stateChangeScriptName() const
{
    Q_D(const QDeclarativeScriptAction);
    return d->name;
}

void QDeclarativeScriptAction::setStateChangeScriptName(const QString &name)
{
    Q_D(QDeclarativeScriptAction);
    d->name = name;
}

void QDeclarativeScriptActionPrivate::execute()
{
    Q_Q(QDeclarativeScriptAction);
    if (hasRunScriptScript && reversing)
        return;

    QDeclarativeScriptString scriptStr = hasRunScriptScript ? runScriptScript : script;

    const QString &str = scriptStr.script();
    if (!str.isEmpty()) {
        QDeclarativeExpression expr(scriptStr.context(), scriptStr.scopeObject(), str);
        QDeclarativeData *ddata = QDeclarativeData::get(q);
        if (ddata && ddata->outerContext && !ddata->outerContext->url.isEmpty())
            expr.setSourceLocation(ddata->outerContext->url.toString(), ddata->lineNumber);
        expr.evaluate();
        if (expr.hasError())
            qmlInfo(q) << expr.error();
    }
}

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

    d->hasRunScriptScript = false;
    d->reversing = (direction == Backward);
    for (int ii = 0; ii < actions.count(); ++ii) {
        QDeclarativeAction &action = actions[ii];

        if (action.event && action.event->typeName() == QLatin1String("StateChangeScript")
            && static_cast<QDeclarativeStateChangeScript*>(action.event)->name() == d->name) {
            d->runScriptScript = static_cast<QDeclarativeStateChangeScript*>(action.event)->script();
            d->hasRunScriptScript = true;
            action.actionDone = true;
            break;  //only match one (names should be unique)
        }
    }
}

QAbstractAnimation *QDeclarativeScriptAction::qtAnimation()
{
    Q_D(QDeclarativeScriptAction);
    return d->rsa;
}



QDeclarativePropertyAction::QDeclarativePropertyAction(QObject *parent)
: QDeclarativeAbstractAnimation(*(new QDeclarativePropertyActionPrivate), parent)
{
    Q_D(QDeclarativePropertyAction);
    d->init();
}

QDeclarativePropertyAction::~QDeclarativePropertyAction()
{
}

void QDeclarativePropertyActionPrivate::init()
{
    Q_Q(QDeclarativePropertyAction);
    spa = new QActionAnimation;
    QDeclarative_setParent_noEvent(spa, q);
}

QObject *QDeclarativePropertyAction::target() const
{
    Q_D(const QDeclarativePropertyAction);
    return d->target;
}

void QDeclarativePropertyAction::setTarget(QObject *o)
{
    Q_D(QDeclarativePropertyAction);
    if (d->target == o)
        return;
    d->target = o;
    emit targetChanged();
}

QString QDeclarativePropertyAction::property() const
{
    Q_D(const QDeclarativePropertyAction);
    return d->propertyName;
}

void QDeclarativePropertyAction::setProperty(const QString &n)
{
    Q_D(QDeclarativePropertyAction);
    if (d->propertyName == n)
        return;
    d->propertyName = n;
    emit propertyChanged();
}

QString QDeclarativePropertyAction::properties() const
{
    Q_D(const QDeclarativePropertyAction);
    return d->properties;
}

void QDeclarativePropertyAction::setProperties(const QString &p)
{
    Q_D(QDeclarativePropertyAction);
    if (d->properties == p)
        return;
    d->properties = p;
    emit propertiesChanged(p);
}

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

QDeclarativeListProperty<QObject> QDeclarativePropertyAction::exclude()
{
    Q_D(QDeclarativePropertyAction);
    return QDeclarativeListProperty<QObject>(this, d->exclude);
}

QVariant QDeclarativePropertyAction::value() const
{
    Q_D(const QDeclarativePropertyAction);
    return d->value;
}

void QDeclarativePropertyAction::setValue(const QVariant &v)
{
    Q_D(QDeclarativePropertyAction);
    if (d->value.isNull || d->value != v) {
        d->value = v;
        emit valueChanged(v);
    }
}

QAbstractAnimation *QDeclarativePropertyAction::qtAnimation()
{
    Q_D(QDeclarativePropertyAction);
    return d->spa;
}

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

    struct QDeclarativeSetPropertyAnimationAction : public QAbstractAnimationAction
    {
        QDeclarativeStateActions actions;
        virtual void doAction()
        {
            for (int ii = 0; ii < actions.count(); ++ii) {
                const QDeclarativeAction &action = actions.at(ii);
                QDeclarativePropertyPrivate::write(action.property, action.toValue, QDeclarativePropertyPrivate::BypassInterceptor | QDeclarativePropertyPrivate::DontRemoveBinding);
            }
        }
    };

    QStringList props = d->properties.isEmpty() ? QStringList() : d->properties.split(QLatin1Char(','));
    for (int ii = 0; ii < props.count(); ++ii)
        props[ii] = props.at(ii).trimmed();
    if (!d->propertyName.isEmpty())
        props << d->propertyName;

    QList<QObject*> targets = d->targets;
    if (d->target)
        targets.append(d->target);

    bool hasSelectors = !props.isEmpty() || !targets.isEmpty() || !d->exclude.isEmpty();

    if (d->defaultProperty.isValid() && !hasSelectors) {
        props << d->defaultProperty.name();
        targets << d->defaultProperty.object();
    }

    QDeclarativeSetPropertyAnimationAction *data = new QDeclarativeSetPropertyAnimationAction;

    bool hasExplicit = false;
    //an explicit animation has been specified
    if (d->value.isValid()) {
        for (int i = 0; i < props.count(); ++i) {
            for (int j = 0; j < targets.count(); ++j) {
                QDeclarativeAction myAction;
                myAction.property = d->createProperty(targets.at(j), props.at(i), this);
                if (myAction.property.isValid()) {
                    myAction.toValue = d->value;
                    QDeclarativePropertyAnimationPrivate::convertVariant(myAction.toValue, myAction.property.propertyType());
                    data->actions << myAction;
                    hasExplicit = true;
                    for (int ii = 0; ii < actions.count(); ++ii) {
                        QDeclarativeAction &action = actions[ii];
                        if (action.property.object() == myAction.property.object() &&
                            myAction.property.name() == action.property.name()) {
                            modified << action.property;
                            break;  //### any chance there could be multiples?
                        }
                    }
                }
            }
        }
    }

    if (!hasExplicit)
    for (int ii = 0; ii < actions.count(); ++ii) {
        QDeclarativeAction &action = actions[ii];

        QObject *obj = action.property.object();
        QString propertyName = action.property.name();
        QObject *sObj = action.specifiedObject;
        QString sPropertyName = action.specifiedProperty;
        bool same = (obj == sObj);

        if ((targets.isEmpty() || targets.contains(obj) || (!same && targets.contains(sObj))) &&
           (!d->exclude.contains(obj)) && (same || (!d->exclude.contains(sObj))) &&
           (props.contains(propertyName) || (!same && props.contains(sPropertyName)))) {
            QDeclarativeAction myAction = action;

            if (d->value.isValid())
                myAction.toValue = d->value;
            QDeclarativePropertyAnimationPrivate::convertVariant(myAction.toValue, myAction.property.propertyType());

            modified << action.property;
            data->actions << myAction;
            action.fromValue = myAction.toValue;
        }
    }

    if (data->actions.count()) {
        d->spa->setAnimAction(data, QAbstractAnimation::DeleteWhenStopped);
    } else {
        delete data;
    }
}

QDeclarativeNumberAnimation::QDeclarativeNumberAnimation(QObject *parent)
: QDeclarativePropertyAnimation(parent)
{
    init();
}

QDeclarativeNumberAnimation::QDeclarativeNumberAnimation(QDeclarativePropertyAnimationPrivate &dd, QObject *parent)
: QDeclarativePropertyAnimation(dd, parent)
{
    init();
}

QDeclarativeNumberAnimation::~QDeclarativeNumberAnimation()
{
}

void QDeclarativeNumberAnimation::init()
{
    Q_D(QDeclarativePropertyAnimation);
    d->interpolatorType = QMetaType::QReal;
    d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType);
}

qreal QDeclarativeNumberAnimation::from() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->from.toReal();
}

void QDeclarativeNumberAnimation::setFrom(qreal f)
{
    QDeclarativePropertyAnimation::setFrom(f);
}

qreal QDeclarativeNumberAnimation::to() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->to.toReal();
}

void QDeclarativeNumberAnimation::setTo(qreal t)
{
    QDeclarativePropertyAnimation::setTo(t);
}



QDeclarativeVector3dAnimation::QDeclarativeVector3dAnimation(QObject *parent)
: QDeclarativePropertyAnimation(parent)
{
    Q_D(QDeclarativePropertyAnimation);
    d->interpolatorType = QMetaType::QVector3D;
    d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType);
    d->defaultToInterpolatorType = true;
}

QDeclarativeVector3dAnimation::~QDeclarativeVector3dAnimation()
{
}

QVector3D QDeclarativeVector3dAnimation::from() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->from.value<QVector3D>();
}

void QDeclarativeVector3dAnimation::setFrom(QVector3D f)
{
    QDeclarativePropertyAnimation::setFrom(f);
}

QVector3D QDeclarativeVector3dAnimation::to() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->to.value<QVector3D>();
}

void QDeclarativeVector3dAnimation::setTo(QVector3D t)
{
    QDeclarativePropertyAnimation::setTo(t);
}



QVariant _q_interpolateShortestRotation(qreal &f, qreal &t, qreal progress)
{
    qreal newt = t;
    qreal diff = t-f;
    while(diff > 180.0){
        newt -= 360.0;
        diff -= 360.0;
    }
    while(diff < -180.0){
        newt += 360.0;
        diff += 360.0;
    }
    return QVariant(f + (newt - f) * progress);
}

QVariant _q_interpolateClockwiseRotation(qreal &f, qreal &t, qreal progress)
{
    qreal newt = t;
    qreal diff = t-f;
    while(diff < 0.0){
        newt += 360.0;
        diff += 360.0;
    }
    return QVariant(f + (newt - f) * progress);
}

QVariant _q_interpolateCounterclockwiseRotation(qreal &f, qreal &t, qreal progress)
{
    qreal newt = t;
    qreal diff = t-f;
    while(diff > 0.0){
        newt -= 360.0;
        diff -= 360.0;
    }
    return QVariant(f + (newt - f) * progress);
}

QDeclarativeRotationAnimation::QDeclarativeRotationAnimation(QObject *parent)
: QDeclarativePropertyAnimation(*(new QDeclarativeRotationAnimationPrivate), parent)
{
    Q_D(QDeclarativeRotationAnimation);
    d->interpolatorType = QMetaType::QReal;
    d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType);
    d->defaultProperties = QLatin1String("rotation,angle");
}

QDeclarativeRotationAnimation::~QDeclarativeRotationAnimation()
{
}

qreal QDeclarativeRotationAnimation::from() const
{
    Q_D(const QDeclarativeRotationAnimation);
    return d->from.toReal();
}

void QDeclarativeRotationAnimation::setFrom(qreal f)
{
    QDeclarativePropertyAnimation::setFrom(f);
}

qreal QDeclarativeRotationAnimation::to() const
{
    Q_D(const QDeclarativeRotationAnimation);
    return d->to.toReal();
}

void QDeclarativeRotationAnimation::setTo(qreal t)
{
    QDeclarativePropertyAnimation::setTo(t);
}

QDeclarativeRotationAnimation::RotationDirection QDeclarativeRotationAnimation::direction() const
{
    Q_D(const QDeclarativeRotationAnimation);
    return d->direction;
}

void QDeclarativeRotationAnimation::setDirection(QDeclarativeRotationAnimation::RotationDirection direction)
{
    Q_D(QDeclarativeRotationAnimation);
    if (d->direction == direction)
        return;

    d->direction = direction;
    switch(d->direction) {
    case Clockwise:
        d->interpolator = reinterpret_cast<QVariantAnimation::Interpolator>(&_q_interpolateClockwiseRotation);
        break;
    case Counterclockwise:
        d->interpolator = reinterpret_cast<QVariantAnimation::Interpolator>(&_q_interpolateCounterclockwiseRotation);
        break;
    case Shortest:
        d->interpolator = reinterpret_cast<QVariantAnimation::Interpolator>(&_q_interpolateShortestRotation);
        break;
    default:
        d->interpolator = QVariantAnimationPrivate::getInterpolator(d->interpolatorType);
        break;
    }

    emit directionChanged();
}



QDeclarativeAnimationGroup::QDeclarativeAnimationGroup(QObject *parent)
: QDeclarativeAbstractAnimation(*(new QDeclarativeAnimationGroupPrivate), parent)
{
}

QDeclarativeAnimationGroup::QDeclarativeAnimationGroup(QDeclarativeAnimationGroupPrivate &dd, QObject *parent)
    : QDeclarativeAbstractAnimation(dd, parent)
{
}

void QDeclarativeAnimationGroupPrivate::append_animation(QDeclarativeListProperty<QDeclarativeAbstractAnimation> *list, QDeclarativeAbstractAnimation *a)
{
    QDeclarativeAnimationGroup *q = qobject_cast<QDeclarativeAnimationGroup *>(list->object);
    if (q) {
        a->setGroup(q);
        // This is an optimization for the parenting that already occurs via addAnimation
        QDeclarative_setParent_noEvent(a->qtAnimation(), q->d_func()->ag);
        q->d_func()->ag->addAnimation(a->qtAnimation());
    }
}

void QDeclarativeAnimationGroupPrivate::clear_animation(QDeclarativeListProperty<QDeclarativeAbstractAnimation> *list)
{
    QDeclarativeAnimationGroup *q = qobject_cast<QDeclarativeAnimationGroup *>(list->object);
    if (q) {
        while (q->d_func()->animations.count()) {
            QDeclarativeAbstractAnimation *firstAnim = q->d_func()->animations.at(0);
            QDeclarative_setParent_noEvent(firstAnim->qtAnimation(), 0);
            q->d_func()->ag->removeAnimation(firstAnim->qtAnimation());
            firstAnim->setGroup(0);
        }
    }
}

QDeclarativeAnimationGroup::~QDeclarativeAnimationGroup()
{
}

QDeclarativeListProperty<QDeclarativeAbstractAnimation> QDeclarativeAnimationGroup::animations()
{
    Q_D(QDeclarativeAnimationGroup);
    QDeclarativeListProperty<QDeclarativeAbstractAnimation> list(this, d->animations);
    list.append = &QDeclarativeAnimationGroupPrivate::append_animation;
    list.clear = &QDeclarativeAnimationGroupPrivate::clear_animation;
    return list;
}

QDeclarativeSequentialAnimation::QDeclarativeSequentialAnimation(QObject *parent) :
    QDeclarativeAnimationGroup(parent)
{
    Q_D(QDeclarativeAnimationGroup);
    d->ag = new QSequentialAnimationGroup;
    QDeclarative_setParent_noEvent(d->ag, this);
}

QDeclarativeSequentialAnimation::~QDeclarativeSequentialAnimation()
{
}

QAbstractAnimation *QDeclarativeSequentialAnimation::qtAnimation()
{
    Q_D(QDeclarativeAnimationGroup);
    return d->ag;
}

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

    int inc = 1;
    int from = 0;
    if (direction == Backward) {
        inc = -1;
        from = d->animations.count() - 1;
    }

    bool valid = d->defaultProperty.isValid();
    for (int ii = from; ii < d->animations.count() && ii >= 0; ii += inc) {
        if (valid)
            d->animations.at(ii)->setDefaultTarget(d->defaultProperty);
        d->animations.at(ii)->transition(actions, modified, direction);
    }
}



QDeclarativeParallelAnimation::QDeclarativeParallelAnimation(QObject *parent) :
    QDeclarativeAnimationGroup(parent)
{
    Q_D(QDeclarativeAnimationGroup);
    d->ag = new QParallelAnimationGroup;
    QDeclarative_setParent_noEvent(d->ag, this);
}

QDeclarativeParallelAnimation::~QDeclarativeParallelAnimation()
{
}

QAbstractAnimation *QDeclarativeParallelAnimation::qtAnimation()
{
    Q_D(QDeclarativeAnimationGroup);
    return d->ag;
}

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



//convert a variant from string type to another animatable type
void QDeclarativePropertyAnimationPrivate::convertVariant(QVariant &variant, int type)
{
    if (variant.userType() != QVariant::String) {
        variant.convert((QVariant::Type)type);
        return;
    }

    switch (type) {
    case QVariant::Rect: {
        variant.setValue(QDeclarativeStringConverters::rectFFromString(variant.toString()).toRect());
        break;
    }
    case QVariant::RectF: {
        variant.setValue(QDeclarativeStringConverters::rectFFromString(variant.toString()));
        break;
    }
    case QVariant::Point: {
        variant.setValue(QDeclarativeStringConverters::pointFFromString(variant.toString()).toPoint());
        break;
    }
    case QVariant::PointF: {
        variant.setValue(QDeclarativeStringConverters::pointFFromString(variant.toString()));
        break;
    }
    case QVariant::Size: {
        variant.setValue(QDeclarativeStringConverters::sizeFFromString(variant.toString()).toSize());
        break;
    }
    case QVariant::SizeF: {
        variant.setValue(QDeclarativeStringConverters::sizeFFromString(variant.toString()));
        break;
    }
    case QVariant::Color: {
        variant.setValue(QDeclarativeStringConverters::colorFromString(variant.toString()));
        break;
    }
    case QVariant::Vector3D: {
        variant.setValue(QDeclarativeStringConverters::vector3DFromString(variant.toString()));
        break;
    }
    default:
        if (QDeclarativeValueTypeFactory::isValueType((uint)type)) {
            variant.convert((QVariant::Type)type);
        } else {
            QDeclarativeMetaType::StringConverter converter = QDeclarativeMetaType::customStringConverter(type);
            if (converter)
                variant = converter(variant.toString());
        }
        break;
    }
}

QDeclarativePropertyAnimation::QDeclarativePropertyAnimation(QObject *parent)
: QDeclarativeAbstractAnimation(*(new QDeclarativePropertyAnimationPrivate), parent)
{
    Q_D(QDeclarativePropertyAnimation);
    d->init();
}

QDeclarativePropertyAnimation::QDeclarativePropertyAnimation(QDeclarativePropertyAnimationPrivate &dd, QObject *parent)
: QDeclarativeAbstractAnimation(dd, parent)
{
    Q_D(QDeclarativePropertyAnimation);
    d->init();
}

QDeclarativePropertyAnimation::~QDeclarativePropertyAnimation()
{
}

void QDeclarativePropertyAnimationPrivate::init()
{
    Q_Q(QDeclarativePropertyAnimation);
    va = new QDeclarativeBulkValueAnimator;
    QDeclarative_setParent_noEvent(va, q);
}

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

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

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

QVariant QDeclarativePropertyAnimation::from() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->from;
}

void QDeclarativePropertyAnimation::setFrom(const QVariant &f)
{
    Q_D(QDeclarativePropertyAnimation);
    if (d->fromIsDefined && f == d->from)
        return;
    d->from = f;
    d->fromIsDefined = f.isValid();
    emit fromChanged(f);
}

QVariant QDeclarativePropertyAnimation::to() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->to;
}

void QDeclarativePropertyAnimation::setTo(const QVariant &t)
{
    Q_D(QDeclarativePropertyAnimation);
    if (d->toIsDefined && t == d->to)
        return;
    d->to = t;
    d->toIsDefined = t.isValid();
    emit toChanged(t);
}

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

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

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

QObject *QDeclarativePropertyAnimation::target() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->target;
}

void QDeclarativePropertyAnimation::setTarget(QObject *o)
{
    Q_D(QDeclarativePropertyAnimation);
    if (d->target == o)
        return;
    d->target = o;
    emit targetChanged();
}

QString QDeclarativePropertyAnimation::property() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->propertyName;
}

void QDeclarativePropertyAnimation::setProperty(const QString &n)
{
    Q_D(QDeclarativePropertyAnimation);
    if (d->propertyName == n)
        return;
    d->propertyName = n;
    emit propertyChanged();
}

QString QDeclarativePropertyAnimation::properties() const
{
    Q_D(const QDeclarativePropertyAnimation);
    return d->properties;
}

void QDeclarativePropertyAnimation::setProperties(const QString &prop)
{
    Q_D(QDeclarativePropertyAnimation);
    if (d->properties == prop)
        return;

    d->properties = prop;
    emit propertiesChanged(prop);
}

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

QDeclarativeListProperty<QObject> QDeclarativePropertyAnimation::exclude()
{
    Q_D(QDeclarativePropertyAnimation);
    return QDeclarativeListProperty<QObject>(this, d->exclude);
}

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

void QDeclarativeAnimationPropertyUpdater::setValue(qreal v)
{
    bool deleted = false;
    wasDeleted = &deleted;
    if (reverse)    //QVariantAnimation sends us 1->0 when reversed, but we are expecting 0->1
        v = 1 - v;
    for (int ii = 0; ii < actions.count(); ++ii) {
        QDeclarativeAction &action = actions[ii];

        if (v == 1.)
            QDeclarativePropertyPrivate::write(action.property, action.toValue, QDeclarativePropertyPrivate::BypassInterceptor | QDeclarativePropertyPrivate::DontRemoveBinding);
        else {
            if (!fromSourced && !fromDefined) {
                action.fromValue = action.property.read();
                if (interpolatorType)
                    QDeclarativePropertyAnimationPrivate::convertVariant(action.fromValue, interpolatorType);
            }
            if (!interpolatorType) {
                int propType = action.property.propertyType();
                if (!prevInterpolatorType || prevInterpolatorType != propType) {
                    prevInterpolatorType = propType;
                    interpolator = QVariantAnimationPrivate::getInterpolator(prevInterpolatorType);
                }
            }
            if (interpolator)
                QDeclarativePropertyPrivate::write(action.property, interpolator(action.fromValue.constData(), action.toValue.constData(), v), QDeclarativePropertyPrivate::BypassInterceptor | QDeclarativePropertyPrivate::DontRemoveBinding);
        }
        if (deleted)
            return;
    }
    wasDeleted = 0;
    fromSourced = true;
}

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

    QStringList props = d->properties.isEmpty() ? QStringList() : d->properties.split(QLatin1Char(','));
    for (int ii = 0; ii < props.count(); ++ii)
        props[ii] = props.at(ii).trimmed();
    if (!d->propertyName.isEmpty())
        props << d->propertyName;

    QList<QObject*> targets = d->targets;
    if (d->target)
        targets.append(d->target);

    bool hasSelectors = !props.isEmpty() || !targets.isEmpty() || !d->exclude.isEmpty();
    bool useType = (props.isEmpty() && d->defaultToInterpolatorType) ? true : false;

    if (d->defaultProperty.isValid() && !hasSelectors) {
        props << d->defaultProperty.name();
        targets << d->defaultProperty.object();
    }

    if (props.isEmpty() && !d->defaultProperties.isEmpty()) {
        props << d->defaultProperties.split(QLatin1Char(','));
    }

    QDeclarativeAnimationPropertyUpdater *data = new QDeclarativeAnimationPropertyUpdater;
    data->interpolatorType = d->interpolatorType;
    data->interpolator = d->interpolator;
    data->reverse = direction == Backward ? true : false;
    data->fromSourced = false;
    data->fromDefined = d->fromIsDefined;

    bool hasExplicit = false;
    //an explicit animation has been specified
    if (d->toIsDefined) {
        for (int i = 0; i < props.count(); ++i) {
            for (int j = 0; j < targets.count(); ++j) {
                QDeclarativeAction myAction;
                myAction.property = d->createProperty(targets.at(j), props.at(i), this);
                if (myAction.property.isValid()) {
                    if (d->fromIsDefined) {
                        myAction.fromValue = d->from;
                        d->convertVariant(myAction.fromValue, d->interpolatorType ? d->interpolatorType : myAction.property.propertyType());
                    }
                    myAction.toValue = d->to;
                    d->convertVariant(myAction.toValue, d->interpolatorType ? d->interpolatorType : myAction.property.propertyType());
                    data->actions << myAction;
                    hasExplicit = true;
                    for (int ii = 0; ii < actions.count(); ++ii) {
                        QDeclarativeAction &action = actions[ii];
                        if (action.property.object() == myAction.property.object() &&
                            myAction.property.name() == action.property.name()) {
                            modified << action.property;
                            break;  //### any chance there could be multiples?
                        }
                    }
                }
            }
        }
    }

    if (!hasExplicit)
    for (int ii = 0; ii < actions.count(); ++ii) {
        QDeclarativeAction &action = actions[ii];

        QObject *obj = action.property.object();
        QString propertyName = action.property.name();
        QObject *sObj = action.specifiedObject;
        QString sPropertyName = action.specifiedProperty;
        bool same = (obj == sObj);

        if ((targets.isEmpty() || targets.contains(obj) || (!same && targets.contains(sObj))) &&
           (!d->exclude.contains(obj)) && (same || (!d->exclude.contains(sObj))) &&
           (props.contains(propertyName) || (!same && props.contains(sPropertyName))
               || (useType && action.property.propertyType() == d->interpolatorType))) {
            QDeclarativeAction myAction = action;

            if (d->fromIsDefined)
                myAction.fromValue = d->from;
            else
                myAction.fromValue = QVariant();
            if (d->toIsDefined)
                myAction.toValue = d->to;

            d->convertVariant(myAction.fromValue, d->interpolatorType ? d->interpolatorType : myAction.property.propertyType());
            d->convertVariant(myAction.toValue, d->interpolatorType ? d->interpolatorType : myAction.property.propertyType());

            modified << action.property;

            data->actions << myAction;
            action.fromValue = myAction.toValue;
        }
    }

    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);
        d->actions = &data->actions;
    } else {
        delete data;
        d->va->setFromSourcedValue(0);  //clear previous data
        d->va->setAnimValue(0, QAbstractAnimation::DeleteWhenStopped);  //clear previous data
        d->actions = 0;
    }
}

QDeclarativeParentAnimation::QDeclarativeParentAnimation(QObject *parent)
    : QDeclarativeAnimationGroup(*(new QDeclarativeParentAnimationPrivate), parent)
{
    Q_D(QDeclarativeParentAnimation);
    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);
}

QDeclarativeParentAnimation::~QDeclarativeParentAnimation()
{
}

QDeclarativeItem *QDeclarativeParentAnimation::target() const
{
    Q_D(const QDeclarativeParentAnimation);
    return d->target;
}

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

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

QDeclarativeItem *QDeclarativeParentAnimation::newParent() const
{
    Q_D(const QDeclarativeParentAnimation);
    return d->newParent;
}

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

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

QDeclarativeItem *QDeclarativeParentAnimation::via() const
{
    Q_D(const QDeclarativeParentAnimation);
    return d->via;
}

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

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

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

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

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

        QDeclarativeStateActions actions;
        //### reverse should probably apply on a per-action basis
        bool reverse;
        QList<QDeclarativeParentChange *> 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();
            }
        }
    };

    QDeclarativeParentAnimationData *data = new QDeclarativeParentAnimationData;
    QDeclarativeParentAnimationData *viaData = new QDeclarativeParentAnimationData;

    bool hasExplicit = false;
    if (d->target && d->newParent) {
        data->reverse = false;
        QDeclarativeAction myAction;
        QDeclarativeParentChange *pc = new QDeclarativeParentChange;
        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;
            QDeclarativeParentChange *vpc = new QDeclarativeParentChange;
            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<QDeclarativeParentChange*>(action.event)->object() == d->target)) {

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

            //### this logic differs from PropertyAnimation
            //    (probably a result of modified vs. done)
            if (d->newParent) {
                QDeclarativeParentChange *epc = new QDeclarativeParentChange;
                epc->setObject(static_cast<QDeclarativeParentChange*>(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;
                QDeclarativeParentChange *vpc = new QDeclarativeParentChange;
                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;
                QDeclarativeItem *target = pc->object();
                QDeclarativeItem *targetParent = action.reverseEvent ? pc->originalParent() : pc->parent();

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

                    if (scale != 0)
                        rotation = atan2(transform.m12()/scale, transform.m11()/scale) * 180/qreal(M_PI);
                    else {
                        qmlInfo(this) << QDeclarativeParentAnimation::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() != QDeclarativeItem::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);
        }
        if (!d->via)
            delete viaData;
    } 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 *QDeclarativeParentAnimation::qtAnimation()
{
    Q_D(QDeclarativeParentAnimation);
    return d->topLevelGroup;
}

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

QDeclarativeAnchorAnimation::~QDeclarativeAnchorAnimation()
{
}

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

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

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

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

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

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

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

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

void QDeclarativeAnchorAnimation::transition(QDeclarativeStateActions &actions,
                        QDeclarativeProperties &modified,
                        TransitionDirection direction)
{
    Q_UNUSED(modified);
    Q_D(QDeclarativeAnchorAnimation);
    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<QDeclarativeAnchorChanges*>(action.event)->object()))) {
            data->actions << static_cast<QDeclarativeAnchorChanges*>(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;
    }
}

QDeclarativeScriptActionPrivate::QDeclarativeScriptActionPrivate()
    : QDeclarativeAbstractAnimationPrivate(), hasRunScriptScript(false), reversing(false), proxy(this), rsa(0) {}


QT_END_NAMESPACE