Change class prefix to from QmlXXX to QDeclarativeXXX, QmlGraphicsXXX to QDeclarativeXXX.

1 files changed, 979 insertions, 0 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativepathview.cpp b/src/declarative/graphicsitems/qdeclarativepathview.cpp
new file mode 100644
index 0000000..b9e38ef
--- /dev/null
+++ b/src/declarative/graphicsitems/qdeclarativepathview.cpp
@@ -0,0 +1,979 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdeclarativepathview_p.h"
+#include "qdeclarativepathview_p_p.h"
+
+#include <qdeclarativestate_p.h>
+#include <qdeclarativeopenmetaobject_p.h>
+
+#include <QDebug>
+#include <QEvent>
+#include <qlistmodelinterface_p.h>
+#include <QGraphicsSceneEvent>
+
+#include <math.h>
+
+QT_BEGIN_NAMESPACE
+
+inline qreal qmlMod(qreal x, qreal y)
+{
+#ifdef QT_USE_MATH_H_FLOATS
+    if(sizeof(qreal) == sizeof(float))
+        return fmodf(float(x), float(y));
+    else
+#endif
+        return fmod(x, y);
+}
+
+
+class QDeclarativePathViewAttached : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY(bool onPath READ isOnPath NOTIFY onPathChanged)
+public:
+    QDeclarativePathViewAttached(QObject *parent)
+    : QObject(parent), mo(new QDeclarativeOpenMetaObject(this)), onPath(false)
+    {
+    }
+
+    ~QDeclarativePathViewAttached()
+    {
+        QDeclarativePathView::attachedProperties.remove(parent());
+    }
+
+    QVariant value(const QByteArray &name) const
+    {
+        return mo->value(name);
+    }
+    void setValue(const QByteArray &name, const QVariant &val)
+    {
+        mo->setValue(name, val);
+    }
+
+    bool isOnPath() const { return onPath; }
+    void setOnPath(bool on) {
+        if (on != onPath) {
+            onPath = on;
+            emit onPathChanged();
+        }
+    }
+
+Q_SIGNALS:
+    void onPathChanged();
+
+private:
+    QDeclarativeOpenMetaObject *mo;
+    bool onPath;
+};
+
+
+QDeclarativeItem *QDeclarativePathViewPrivate::getItem(int modelIndex)
+{
+    Q_Q(QDeclarativePathView);
+    requestedIndex = modelIndex;
+    QDeclarativeItem *item = model->item(modelIndex);
+    if (item) {
+        if (QObject *obj = QDeclarativePathView::qmlAttachedProperties(item))
+            static_cast<QDeclarativePathViewAttached *>(obj)->setOnPath(true);
+        item->setParentItem(q);
+    }
+    requestedIndex = -1;
+    return item;
+}
+
+void QDeclarativePathViewPrivate::releaseItem(QDeclarativeItem *item)
+{
+    if (!item || !model)
+        return;
+    if (QObject *obj = QDeclarativePathView::qmlAttachedProperties(item))
+        static_cast<QDeclarativePathViewAttached *>(obj)->setOnPath(false);
+    if (model->release(item) == 0) {
+        if (QObject *obj = QDeclarativePathView::qmlAttachedProperties(item))
+            static_cast<QDeclarativePathViewAttached *>(obj)->setOnPath(false);
+    }
+}
+
+/*!
+    \qmlclass PathView QDeclarativePathView
+    \since 4.7
+    \brief The PathView element lays out model-provided items on a path.
+    \inherits Item
+
+    The model is typically provided by a QAbstractListModel "C++ model object", but can also be created directly in QML.
+
+    The items are laid out along a path defined by a \l Path and may be flicked to scroll.
+
+    \snippet doc/src/snippets/declarative/pathview/pathview.qml 0
+
+    \image pathview.gif
+
+    \sa Path
+*/
+
+QDeclarativePathView::QDeclarativePathView(QDeclarativeItem *parent)
+  : QDeclarativeItem(*(new QDeclarativePathViewPrivate), parent)
+{
+    Q_D(QDeclarativePathView);
+    d->init();
+}
+
+QDeclarativePathView::~QDeclarativePathView()
+{
+    Q_D(QDeclarativePathView);
+    if (d->ownModel)
+        delete d->model;
+}
+
+/*!
+    \qmlattachedproperty bool PathView::onPath
+    This attached property holds whether the item is currently on the path.
+
+    If a pathItemCount has been set, it is possible that some items may
+    be instantiated, but not considered to be currently on the path.
+    Usually, these items would be set invisible, for example:
+
+    \code
+    Component {
+        Rectangle {
+            visible: PathView.onPath
+            ...
+        }
+    }
+    \endcode
+
+    It is attached to each instance of the delegate.
+*/
+
+/*!
+    \qmlproperty model PathView::model
+    This property holds the model providing data for the view.
+
+    The model provides a set of data that is used to create the items for the view.
+    For large or dynamic datasets the model is usually provided by a C++ model object.
+    Models can also be created directly in XML, using the ListModel element.
+
+    \sa {qmlmodels}{Data Models}
+*/
+QVariant QDeclarativePathView::model() const
+{
+    Q_D(const QDeclarativePathView);
+    return d->modelVariant;
+}
+
+void QDeclarativePathView::setModel(const QVariant &model)
+{
+    Q_D(QDeclarativePathView);
+    if (d->model) {
+        disconnect(d->model, SIGNAL(itemsInserted(int,int)), this, SLOT(itemsInserted(int,int)));
+        disconnect(d->model, SIGNAL(itemsRemoved(int,int)), this, SLOT(itemsRemoved(int,int)));
+        disconnect(d->model, SIGNAL(createdItem(int, QDeclarativeItem*)), this, SLOT(createdItem(int,QDeclarativeItem*)));
+        for (int i=0; i<d->items.count(); i++){
+            QDeclarativeItem *p = d->items[i];
+            d->model->release(p);
+        }
+        d->items.clear();
+    }
+
+    d->modelVariant = model;
+    QObject *object = qvariant_cast<QObject*>(model);
+    QDeclarativeVisualModel *vim = 0;
+    if (object && (vim = qobject_cast<QDeclarativeVisualModel *>(object))) {
+        if (d->ownModel) {
+            delete d->model;
+            d->ownModel = false;
+        }
+        d->model = vim;
+    } else {
+        if (!d->ownModel) {
+            d->model = new QDeclarativeVisualDataModel(qmlContext(this));
+            d->ownModel = true;
+        }
+        if (QDeclarativeVisualDataModel *dataModel = qobject_cast<QDeclarativeVisualDataModel*>(d->model))
+            dataModel->setModel(model);
+    }
+    if (d->model) {
+        connect(d->model, SIGNAL(itemsInserted(int,int)), this, SLOT(itemsInserted(int,int)));
+        connect(d->model, SIGNAL(itemsRemoved(int,int)), this, SLOT(itemsRemoved(int,int)));
+        connect(d->model, SIGNAL(createdItem(int, QDeclarativeItem*)), this, SLOT(createdItem(int,QDeclarativeItem*)));
+    }
+    d->firstIndex = 0;
+    d->pathOffset = 0;
+    d->regenerate();
+    d->fixOffset();
+}
+
+/*!
+    \qmlproperty int PathView::count
+    This property holds the number of items in the model.
+*/
+int QDeclarativePathView::count() const
+{
+    Q_D(const QDeclarativePathView);
+    return d->model ? d->model->count() : 0;
+}
+
+/*!
+    \qmlproperty Path PathView::path
+    \default
+    This property holds the path used to lay out the items.
+    For more information see the \l Path documentation.
+*/
+QDeclarativePath *QDeclarativePathView::path() const
+{
+    Q_D(const QDeclarativePathView);
+    return d->path;
+}
+
+void QDeclarativePathView::setPath(QDeclarativePath *path)
+{
+    Q_D(QDeclarativePathView);
+    d->path = path;
+    connect(d->path, SIGNAL(changed()), this, SLOT(refill()));
+    d->regenerate();
+}
+
+/*!
+    \qmlproperty int PathView::currentIndex
+    This property holds the index of the current item.
+*/
+int QDeclarativePathView::currentIndex() const
+{
+    Q_D(const QDeclarativePathView);
+    return d->currentIndex;
+}
+
+void QDeclarativePathView::setCurrentIndex(int idx)
+{
+    Q_D(QDeclarativePathView);
+    if (d->model && d->model->count())
+        idx = qAbs(idx % d->model->count());
+    if (d->model && idx != d->currentIndex) {
+        d->currentIndex = idx;
+        if (d->model->count()) {
+            d->snapToCurrent();
+            int itemIndex = (idx - d->firstIndex + d->model->count()) % d->model->count();
+            if (itemIndex < d->items.count())
+                d->items.at(itemIndex)->setFocus(true);
+        }
+        emit currentIndexChanged();
+    }
+}
+
+/*!
+    \qmlproperty real PathView::offset
+
+    The offset specifies how far along the path the items are from their initial positions.
+*/
+qreal QDeclarativePathView::offset() const
+{
+    Q_D(const QDeclarativePathView);
+    return d->_offset;
+}
+
+void QDeclarativePathView::setOffset(qreal offset)
+{
+    Q_D(QDeclarativePathView);
+    d->setOffset(offset);
+    d->updateCurrent();
+}
+
+void QDeclarativePathViewPrivate::setOffset(qreal o)
+{
+    Q_Q(QDeclarativePathView);
+    if (_offset != o) {
+        _offset = qmlMod(o, qreal(100.0));
+        if (_offset < 0)
+            _offset = 100.0 + _offset;
+        q->refill();
+    }
+}
+
+/*!
+    \qmlproperty real PathView::snapPosition
+
+    This property determines the position (0-100) the nearest item will snap to.
+*/
+qreal QDeclarativePathView::snapPosition() const
+{
+    Q_D(const QDeclarativePathView);
+    return d->snapPos;
+}
+
+void QDeclarativePathView::setSnapPosition(qreal pos)
+{
+    Q_D(QDeclarativePathView);
+    d->snapPos = pos/100;
+    d->fixOffset();
+}
+
+/*!
+    \qmlproperty real PathView::dragMargin
+    This property holds the maximum distance from the path that initiate mouse dragging.
+
+    By default the path can only be dragged by clicking on an item.  If
+    dragMargin is greater than zero, a drag can be initiated by clicking
+    within dragMargin pixels of the path.
+*/
+qreal QDeclarativePathView::dragMargin() const
+{
+    Q_D(const QDeclarativePathView);
+    return d->dragMargin;
+}
+
+void QDeclarativePathView::setDragMargin(qreal dragMargin)
+{
+    Q_D(QDeclarativePathView);
+    d->dragMargin = dragMargin;
+}
+
+/*!
+    \qmlproperty component PathView::delegate
+
+    The delegate provides a template defining each item instantiated by the view.
+    The index is exposed as an accessible \c index property.  Properties of the
+    model are also available depending upon the type of \l {qmlmodels}{Data Model}.
+
+    Note that the PathView will layout the items based on the size of the root
+    item in the delegate.
+
+    Here is an example delegate:
+    \snippet doc/src/snippets/declarative/pathview/pathview.qml 1
+*/
+QDeclarativeComponent *QDeclarativePathView::delegate() const
+{
+    Q_D(const QDeclarativePathView);
+     if (d->model) {
+        if (QDeclarativeVisualDataModel *dataModel = qobject_cast<QDeclarativeVisualDataModel*>(d->model))
+            return dataModel->delegate();
+    }
+
+    return 0;
+}
+
+void QDeclarativePathView::setDelegate(QDeclarativeComponent *c)
+{
+    Q_D(QDeclarativePathView);
+    if (!d->ownModel) {
+        d->model = new QDeclarativeVisualDataModel(qmlContext(this));
+        d->ownModel = true;
+    }
+    if (QDeclarativeVisualDataModel *dataModel = qobject_cast<QDeclarativeVisualDataModel*>(d->model)) {
+        dataModel->setDelegate(c);
+        d->regenerate();
+    }
+}
+
+/*!
+  \qmlproperty int PathView::pathItemCount
+  This property holds the number of items visible on the path at any one time
+*/
+int QDeclarativePathView::pathItemCount() const
+{
+    Q_D(const QDeclarativePathView);
+    return d->pathItems;
+}
+
+void QDeclarativePathView::setPathItemCount(int i)
+{
+    Q_D(QDeclarativePathView);
+    if (i == d->pathItems)
+        return;
+    d->pathItems = i;
+    d->regenerate();
+}
+
+QPointF QDeclarativePathViewPrivate::pointNear(const QPointF &point, qreal *nearPercent) const
+{
+    //XXX maybe do recursively at increasing resolution.
+    qreal mindist = 1e10; // big number
+    QPointF nearPoint = path->pointAt(0);
+    qreal nearPc = 0;
+    for (qreal i=1; i < 1000; i++) {
+        QPointF pt = path->pointAt(i/1000.0);
+        QPointF diff = pt - point;
+        qreal dist = diff.x()*diff.x() + diff.y()*diff.y();
+        if (dist < mindist) {
+            nearPoint = pt;
+            nearPc = i;
+            mindist = dist;
+        }
+    }
+
+    if (nearPercent)
+        *nearPercent = nearPc / 10.0;
+
+    return nearPoint;
+}
+
+
+void QDeclarativePathView::mousePressEvent(QGraphicsSceneMouseEvent *event)
+{
+    Q_D(QDeclarativePathView);
+    if (!d->items.count())
+        return;
+    QPointF scenePoint = mapToScene(event->pos());
+    int idx = 0;
+    for (; idx < d->items.count(); ++idx) {
+        QRectF rect = d->items.at(idx)->boundingRect();
+        rect = d->items.at(idx)->mapToScene(rect).boundingRect();
+        if (rect.contains(scenePoint))
+            break;
+    }
+    if (idx == d->items.count() && d->dragMargin == 0.)  // didn't click on an item
+        return;
+
+    d->startPoint = d->pointNear(event->pos(), &d->startPc);
+    if (idx == d->items.count()) {
+        qreal distance = qAbs(event->pos().x() - d->startPoint.x()) + qAbs(event->pos().y() - d->startPoint.y());
+        if (distance > d->dragMargin)
+            return;
+    }
+
+    d->stealMouse = false;
+    d->lastElapsed = 0;
+    d->lastDist = 0;
+    QDeclarativeItemPrivate::start(d->lastPosTime);
+    d->tl.clear();
+}
+
+void QDeclarativePathView::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+    Q_D(QDeclarativePathView);
+    if (d->lastPosTime.isNull())
+        return;
+
+    if (!d->stealMouse) {
+        QPointF delta = event->pos() - d->startPoint;
+        if (qAbs(delta.x()) > QApplication::startDragDistance() && qAbs(delta.y()) > QApplication::startDragDistance())
+            d->stealMouse = true;
+    }
+
+    if (d->stealMouse) {
+        d->moveReason = QDeclarativePathViewPrivate::Mouse;
+        qreal newPc;
+        d->pointNear(event->pos(), &newPc);
+        qreal diff = newPc - d->startPc;
+        if (diff) {
+            setOffset(d->_offset + diff);
+
+            if (diff > 50)
+                diff -= 100;
+            else if (diff < -50)
+                diff += 100;
+
+            d->lastElapsed = QDeclarativeItemPrivate::restart(d->lastPosTime);
+            d->lastDist = diff;
+            d->startPc = newPc;
+        }
+    }
+}
+
+void QDeclarativePathView::mouseReleaseEvent(QGraphicsSceneMouseEvent *)
+{
+    Q_D(QDeclarativePathView);
+    if (d->lastPosTime.isNull())
+        return;
+
+    qreal elapsed = qreal(d->lastElapsed + QDeclarativeItemPrivate::elapsed(d->lastPosTime)) / 1000.;
+    qreal velocity = elapsed > 0. ? d->lastDist / elapsed : 0;
+    if (d->model && d->model->count() && qAbs(velocity) > 5) {
+        if (velocity > 100)
+            velocity = 100;
+        else if (velocity < -100)
+            velocity = -100;
+        qreal inc = qmlMod(d->_offset - d->snapPos, qreal(100.0 / d->model->count()));
+        qreal dist = qAbs(velocity/2 - qmlMod(velocity/2, qreal(100.0 / d->model->count()) - inc));
+        d->moveOffset.setValue(d->_offset);
+        d->tl.accel(d->moveOffset, velocity, 10, dist);
+        d->tl.callback(QDeclarativeTimeLineCallback(&d->moveOffset, d->fixOffsetCallback, d));
+    } else {
+        d->fixOffset();
+    }
+
+    d->lastPosTime = QTime();
+    d->stealMouse = false;
+    ungrabMouse();
+}
+
+bool QDeclarativePathView::sendMouseEvent(QGraphicsSceneMouseEvent *event)
+{
+    Q_D(QDeclarativePathView);
+    QGraphicsSceneMouseEvent mouseEvent(event->type());
+    QRectF myRect = mapToScene(QRectF(0, 0, width(), height())).boundingRect();
+    QGraphicsScene *s = scene();
+    QDeclarativeItem *grabber = s ? qobject_cast<QDeclarativeItem*>(s->mouseGrabberItem()) : 0;
+    if ((d->stealMouse || myRect.contains(event->scenePos().toPoint())) && (!grabber || !grabber->keepMouseGrab())) {
+        mouseEvent.setAccepted(false);
+        for (int i = 0x1; i <= 0x10; i <<= 1) {
+            if (event->buttons() & i) {
+                Qt::MouseButton button = Qt::MouseButton(i);
+                mouseEvent.setButtonDownPos(button, mapFromScene(event->buttonDownPos(button)));
+            }
+        }
+        mouseEvent.setScenePos(event->scenePos());
+        mouseEvent.setLastScenePos(event->lastScenePos());
+        mouseEvent.setPos(mapFromScene(event->scenePos()));
+        mouseEvent.setLastPos(mapFromScene(event->lastScenePos()));
+
+        switch(mouseEvent.type()) {
+        case QEvent::GraphicsSceneMouseMove:
+            mouseMoveEvent(&mouseEvent);
+            break;
+        case QEvent::GraphicsSceneMousePress:
+            mousePressEvent(&mouseEvent);
+            break;
+        case QEvent::GraphicsSceneMouseRelease:
+            mouseReleaseEvent(&mouseEvent);
+            break;
+        default:
+            break;
+        }
+        grabber = qobject_cast<QDeclarativeItem*>(s->mouseGrabberItem());
+        if (grabber && d->stealMouse && !grabber->keepMouseGrab() && grabber != this)
+            grabMouse();
+
+        return d->stealMouse;
+    } else if (!d->lastPosTime.isNull()) {
+        d->lastPosTime = QTime();
+    }
+    return false;
+}
+
+bool QDeclarativePathView::sceneEventFilter(QGraphicsItem *i, QEvent *e)
+{
+    if (!isVisible())
+        return QDeclarativeItem::sceneEventFilter(i, e);
+
+    switch (e->type()) {
+    case QEvent::GraphicsSceneMousePress:
+    case QEvent::GraphicsSceneMouseMove:
+    case QEvent::GraphicsSceneMouseRelease:
+        {
+            bool ret = sendMouseEvent(static_cast<QGraphicsSceneMouseEvent *>(e));
+            if (e->type() == QEvent::GraphicsSceneMouseRelease)
+                return ret;
+            break;
+        }
+    default:
+        break;
+    }
+
+    return QDeclarativeItem::sceneEventFilter(i, e);
+}
+
+void QDeclarativePathView::componentComplete()
+{
+    Q_D(QDeclarativePathView);
+    QDeclarativeItem::componentComplete();
+    d->regenerate();
+
+    // move to correct offset
+    if (d->items.count()) {
+        int itemIndex = (d->currentIndex - d->firstIndex + d->model->count()) % d->model->count();
+
+        itemIndex += d->pathOffset;
+        itemIndex %= d->items.count();
+        qreal targetOffset = qmlMod(100 + (d->snapPos*100) - 100.0 * itemIndex / d->items.count(), qreal(100.0));
+
+        if (targetOffset < 0)
+            targetOffset = 100.0 + targetOffset;
+        if (targetOffset != d->_offset) {
+            d->moveOffset.setValue(targetOffset);
+        }
+    }
+}
+
+void QDeclarativePathViewPrivate::regenerate()
+{
+    Q_Q(QDeclarativePathView);
+    if (!q->isComponentComplete())
+        return;
+
+    for (int i=0; i<items.count(); i++){
+        QDeclarativeItem *p = items[i];
+        releaseItem(p);
+    }
+    items.clear();
+
+    if (!isValid())
+        return;
+
+    if (firstIndex >= model->count())
+        firstIndex = model->count()-1;
+    if (pathOffset >= model->count())
+        pathOffset = model->count()-1;
+
+    int numItems = pathItems >= 0 ? pathItems : model->count();
+    for (int i=0; i < numItems && i < model->count(); ++i){
+        int index = (i + firstIndex) % model->count();
+        QDeclarativeItem *item = getItem(index);
+        if (!item) {
+            qWarning() << "PathView: Cannot create item, index" << (i + firstIndex) % model->count();
+            return;
+        }
+        items.append(item);
+        item->setZValue(i);
+        if (currentIndex == index)
+            item->setFocus(true);
+    }
+    q->refill();
+}
+
+void QDeclarativePathViewPrivate::updateItem(QDeclarativeItem *item, qreal percent)
+{
+    if (QObject *obj = QDeclarativePathView::qmlAttachedProperties(item)) {
+        foreach(const QString &attr, path->attributes())
+            static_cast<QDeclarativePathViewAttached *>(obj)->setValue(attr.toUtf8(), path->attributeAt(attr, percent));
+    }
+    QPointF pf = path->pointAt(percent);
+    item->setX(pf.x() - item->width()*item->scale()/2);
+    item->setY(pf.y() - item->height()*item->scale()/2);
+}
+
+void QDeclarativePathView::refill()
+{
+    Q_D(QDeclarativePathView);
+    if (!d->isValid() || !isComponentComplete())
+        return;
+
+    QList<qreal> positions;
+    for (int i=0; i<d->items.count(); i++){
+        qreal percent = i * (100. / d->items.count());
+        percent = percent + d->_offset;
+        percent = qmlMod(percent, qreal(100.0));
+        positions << qAbs(percent/100.0);
+    }
+
+    if (d->pathItems==-1) {
+        for (int i=0; i<positions.count(); i++)
+            d->updateItem(d->items.at(i), positions[i]);
+        return;
+    }
+
+    QList<qreal> rotatedPositions;
+    for (int i=0; i<d->items.count(); i++)
+        rotatedPositions << positions[(i + d->pathOffset + d->items.count()) % d->items.count()];
+
+    int wrapIndex= -1;
+    for (int i=0; i<d->items.count()-1; i++) {
+        if (rotatedPositions[i] > rotatedPositions[i+1]){
+            wrapIndex = i;
+            break;
+        }
+    }
+    if (wrapIndex != -1 ){
+        //A wraparound has occured
+        if (wrapIndex < d->items.count()/2){
+            while(wrapIndex-- >= 0){
+                QDeclarativeItem* p = d->items.takeFirst();
+                d->updateItem(p, 0.0);
+                d->releaseItem(p);
+                d->firstIndex++;
+                d->firstIndex %= d->model->count();
+                int index = (d->firstIndex + d->items.count())%d->model->count();
+                QDeclarativeItem *item = d->getItem(index);
+                item->setZValue(wrapIndex);
+                if (d->currentIndex == index)
+                    item->setFocus(true);
+                d->items << item;
+                d->pathOffset++;
+                d->pathOffset=d->pathOffset % d->items.count();
+            }
+        } else {
+            while(wrapIndex++ < d->items.count()-1){
+                QDeclarativeItem* p = d->items.takeLast();
+                d->updateItem(p, 1.0);
+                d->releaseItem(p);
+                d->firstIndex--;
+                if (d->firstIndex < 0)
+                    d->firstIndex = d->model->count() - 1;
+                QDeclarativeItem *item = d->getItem(d->firstIndex);
+                item->setZValue(d->firstIndex);
+                if (d->currentIndex == d->firstIndex)
+                    item->setFocus(true);
+                d->items.prepend(item);
+                d->pathOffset--;
+                if (d->pathOffset < 0)
+                    d->pathOffset = d->items.count() - 1;
+            }
+        }
+        for (int i=0; i<d->items.count(); i++)
+            rotatedPositions[i] = positions[(i + d->pathOffset + d->items.count())
+                                    % d->items.count()];
+    }
+    for (int i=0; i<d->items.count(); i++)
+        d->updateItem(d->items.at(i), rotatedPositions[i]);
+}
+
+void QDeclarativePathView::itemsInserted(int modelIndex, int count)
+{
+    //XXX support animated insertion
+    Q_D(QDeclarativePathView);
+    if (!d->isValid() || !isComponentComplete())
+        return;
+    if (d->pathItems == -1) {
+        for (int i = 0; i < count; ++i) {
+            QDeclarativeItem *item = d->getItem(modelIndex + i);
+            item->setZValue(modelIndex + i);
+            d->items.insert(modelIndex + i, item);
+        }
+        refill();
+    } else {
+        //XXX This is pretty heavy handed until we reference count items.
+        d->regenerate();
+    }
+
+    // make sure the current item is still at the snap position
+    int itemIndex = (d->currentIndex - d->firstIndex + d->model->count())%d->model->count();
+    itemIndex += d->pathOffset;
+    itemIndex %= d->items.count();
+    qreal targetOffset = qmlMod(100 + (d->snapPos*100) - 100.0 * itemIndex / d->items.count(), qreal(100.0));
+
+    if (targetOffset < 0)
+        targetOffset = 100.0 + targetOffset;
+    if (targetOffset != d->_offset)
+        d->moveOffset.setValue(targetOffset);
+}
+
+void QDeclarativePathView::itemsRemoved(int modelIndex, int count)
+{
+    //XXX support animated removal
+    Q_D(QDeclarativePathView);
+    if (!d->isValid() || !isComponentComplete())
+        return;
+    if (d->pathItems == -1) {
+        for (int i = 0; i < count; ++i) {
+            QDeclarativeItem* p = d->items.takeAt(modelIndex);
+            d->model->release(p);
+        }
+        d->snapToCurrent();
+        refill();
+    } else {
+        d->regenerate();
+    }
+
+    if (d->model->count() == 0) {
+        d->currentIndex = -1;
+        d->moveOffset.setValue(0);
+        return;
+    }
+
+    // make sure the current item is still at the snap position
+    if (d->currentIndex >= d->model->count())
+        d->currentIndex = d->model->count() - 1;
+    int itemIndex = (d->currentIndex - d->firstIndex + d->model->count())%d->model->count();
+    itemIndex += d->pathOffset;
+    itemIndex %= d->items.count();
+    qreal targetOffset = qmlMod(100 + (d->snapPos*100) - 100.0 * itemIndex / d->items.count(), qreal(100.0));
+
+    if (targetOffset < 0)
+        targetOffset = 100.0 + targetOffset;
+    if (targetOffset != d->_offset)
+        d->moveOffset.setValue(targetOffset);
+}
+
+void QDeclarativePathView::createdItem(int index, QDeclarativeItem *item)
+{
+    Q_D(QDeclarativePathView);
+    if (d->requestedIndex != index) {
+        item->setParentItem(this);
+        d->updateItem(item, index < d->firstIndex ? 0.0 : 1.0);
+    }
+}
+
+void QDeclarativePathView::destroyingItem(QDeclarativeItem *item)
+{
+    Q_UNUSED(item);
+}
+
+void QDeclarativePathView::ticked()
+{
+    Q_D(QDeclarativePathView);
+    d->updateCurrent();
+}
+
+// find the item closest to the snap position
+int QDeclarativePathViewPrivate::calcCurrentIndex()
+{
+    int current = -1;
+    if (model && items.count()) {
+        _offset = qmlMod(_offset, qreal(100.0));
+        if (_offset < 0)
+            _offset += 100.0;
+
+        if (pathItems == -1) {
+            qreal delta = qmlMod(_offset - snapPos, qreal(100.0));
+            if (delta < 0)
+                delta = 100.0 + delta;
+            int ii = model->count() - qRound(delta * model->count() / 100);
+            if (ii < 0)
+                ii = 0;
+            current = ii;
+        } else {
+            qreal bestDiff=1e9;
+            int bestI=-1;
+            for (int i=0; i<items.count(); i++){
+                qreal percent = i * (100. / items.count());
+                percent = percent + _offset;
+                percent = qmlMod(percent, qreal(100.0));
+                qreal diff = qAbs(snapPos - (percent/100.0));
+                if (diff < bestDiff){
+                    bestDiff = diff;
+                    bestI = i;
+                }
+            }
+            int modelIndex = (bestI - pathOffset + items.count())%items.count();
+            modelIndex += firstIndex;
+            current = modelIndex;
+        }
+        current = qAbs(current % model->count());
+    }
+
+    return current;
+}
+
+void QDeclarativePathViewPrivate::updateCurrent()
+{
+    Q_Q(QDeclarativePathView);
+    if (moveReason != Mouse)
+        return;
+    int idx = calcCurrentIndex();
+    if (model && idx != currentIndex) {
+        currentIndex = idx;
+        int itemIndex = (idx - firstIndex + model->count()) % model->count();
+        if (itemIndex < items.count())
+            items.at(itemIndex)->setFocus(true);
+        emit q->currentIndexChanged();
+    }
+}
+
+void QDeclarativePathViewPrivate::fixOffsetCallback(void *d)
+{
+    ((QDeclarativePathViewPrivate *)d)->fixOffset();
+}
+
+void QDeclarativePathViewPrivate::fixOffset()
+{
+    Q_Q(QDeclarativePathView);
+    if (model && items.count()) {
+        int curr = calcCurrentIndex();
+        if (curr != currentIndex)
+            q->setCurrentIndex(curr);
+        else
+            snapToCurrent();
+    }
+}
+
+void QDeclarativePathViewPrivate::snapToCurrent()
+{
+    if (!model || model->count() <= 0)
+        return;
+
+    int itemIndex = (currentIndex - firstIndex + model->count()) % model->count();
+
+    //Rounds is the number of times round to make the current item visible
+    int rounds = itemIndex / items.count();
+    int otherWayRounds = (model->count() - (itemIndex)) / items.count();
+    if (otherWayRounds < rounds)
+        rounds = -otherWayRounds;
+
+    itemIndex += pathOffset;
+    if(model->count() % items.count() && itemIndex - model->count() + items.count() > 0){
+        //When model.count() is not a multiple of pathItemCount we need to manually
+        //fix the index so that going backwards one step works correctly.
+        itemIndex = itemIndex - model->count() + items.count();
+    }
+    itemIndex %= items.count();
+    qreal targetOffset = qmlMod(100 + (snapPos*100) - 100.0 * itemIndex / items.count(), qreal(100.0));
+
+    if (targetOffset < 0)
+        targetOffset = 100.0 + targetOffset;
+    if (targetOffset == _offset && rounds == 0)
+        return;
+
+    moveReason = Other;
+    tl.clear();
+    moveOffset.setValue(_offset);
+
+    if (rounds!=0){
+        //Compensate if the targetOffset would bring the target in from off the screen
+        qreal distance = targetOffset - _offset;
+        if (distance <= -50)
+            rounds--;
+        if (distance > 50)
+            rounds++;
+        tl.move(moveOffset, targetOffset + 100.0*(-rounds), QEasingCurve(QEasingCurve::InOutQuad),
+                int(100*items.count()*qMax((qreal)(2.0/items.count()),(qreal)qAbs(rounds))));
+        tl.callback(QDeclarativeTimeLineCallback(&moveOffset, fixOffsetCallback, this));
+        return;
+    }
+
+    if (targetOffset - _offset > 50.0) {
+        qreal distance = 100 - targetOffset + _offset;
+        tl.move(moveOffset, 0.0, QEasingCurve(QEasingCurve::OutQuad), int(200 * _offset / distance));
+        tl.set(moveOffset, 100.0);
+        tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::InQuad), int(200 * (100-targetOffset) / distance));
+    } else if (targetOffset - _offset <= -50.0) {
+        qreal distance = 100 - _offset + targetOffset;
+        tl.move(moveOffset, 100.0, QEasingCurve(QEasingCurve::OutQuad), int(200 * (100-_offset) / distance));
+        tl.set(moveOffset, 0.0);
+        tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::InQuad), int(200 * targetOffset / distance));
+    } else {
+        tl.move(moveOffset, targetOffset, QEasingCurve(QEasingCurve::InOutQuad), 200);
+    }
+}
+
+QHash<QObject*, QObject*> QDeclarativePathView::attachedProperties;
+QObject *QDeclarativePathView::qmlAttachedProperties(QObject *obj)
+{
+    QObject *rv = attachedProperties.value(obj);
+    if (!rv) {
+        rv = new QDeclarativePathViewAttached(obj);
+        attachedProperties.insert(obj, rv);
+    }
+    return rv;
+}
+
+QT_END_NAMESPACE
+
+#include <qdeclarativepathview.moc>