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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 734 insertions, 0 deletions

diff --git a/src/declarative/util/qdeclarativeview.cpp b/src/declarative/util/qdeclarativeview.cpp
new file mode 100644
index 0000000000..e24f80f1d2
--- /dev/null
+++ b/src/declarative/util/qdeclarativeview.cpp
@@ -0,0 +1,734 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 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 "qdeclarativeview.h"
+
+#include <qdeclarative.h>
+#include <qdeclarativeitem.h>
+#include <qdeclarativeengine.h>
+#include <qdeclarativecontext.h>
+#include <qdeclarativeglobal_p.h>
+#include <qdeclarativeguard_p.h>
+
+#include <private/qdeclarativedebugtrace_p.h>
+
+#include <qscriptvalueiterator.h>
+#include <qdebug.h>
+#include <qtimer.h>
+#include <qevent.h>
+#include <qdir.h>
+#include <qcoreapplication.h>
+#include <qfontdatabase.h>
+#include <qicon.h>
+#include <qurl.h>
+#include <qlayout.h>
+#include <qwidget.h>
+#include <qgraphicswidget.h>
+#include <qbasictimer.h>
+#include <QtCore/qabstractanimation.h>
+#include <private/qgraphicsview_p.h>
+#include <private/qdeclarativeitem_p.h>
+#include <private/qabstractanimation_p.h>
+#include <private/qdeclarativeitemchangelistener_p.h>
+
+QT_BEGIN_NAMESPACE
+
+DEFINE_BOOL_CONFIG_OPTION(frameRateDebug, QML_SHOW_FRAMERATE)
+
+class QDeclarativeScene : public QGraphicsScene
+{
+public:
+    QDeclarativeScene(QObject *parent = 0);
+
+protected:
+    virtual void keyPressEvent(QKeyEvent *);
+    virtual void keyReleaseEvent(QKeyEvent *);
+
+    virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *);
+    virtual void mousePressEvent(QGraphicsSceneMouseEvent *);
+    virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *);
+};
+
+QDeclarativeScene::QDeclarativeScene(QObject *parent) : QGraphicsScene(parent)
+{
+}
+
+void QDeclarativeScene::keyPressEvent(QKeyEvent *e)
+{
+    QDeclarativeDebugTrace::addEvent(QDeclarativeDebugTrace::Key);
+
+    QGraphicsScene::keyPressEvent(e);
+}
+
+void QDeclarativeScene::keyReleaseEvent(QKeyEvent *e)
+{
+    QDeclarativeDebugTrace::addEvent(QDeclarativeDebugTrace::Key);
+
+    QGraphicsScene::keyReleaseEvent(e);
+}
+
+void QDeclarativeScene::mouseMoveEvent(QGraphicsSceneMouseEvent *e)
+{
+    QDeclarativeDebugTrace::addEvent(QDeclarativeDebugTrace::Mouse);
+
+    QGraphicsScene::mouseMoveEvent(e);
+}
+
+void QDeclarativeScene::mousePressEvent(QGraphicsSceneMouseEvent *e)
+{
+    QDeclarativeDebugTrace::addEvent(QDeclarativeDebugTrace::Mouse);
+
+    QGraphicsScene::mousePressEvent(e);
+}
+
+void QDeclarativeScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *e)
+{
+    QDeclarativeDebugTrace::addEvent(QDeclarativeDebugTrace::Mouse);
+
+    QGraphicsScene::mouseReleaseEvent(e);
+}
+
+class QDeclarativeViewPrivate : public QGraphicsViewPrivate, public QDeclarativeItemChangeListener
+{
+    Q_DECLARE_PUBLIC(QDeclarativeView)
+public:
+    QDeclarativeViewPrivate()
+        : root(0), declarativeItemRoot(0), graphicsWidgetRoot(0), component(0),
+          resizeMode(QDeclarativeView::SizeViewToRootObject), initialSize(0,0) {}
+    ~QDeclarativeViewPrivate() { delete root; delete engine; }
+    void execute();
+    void itemGeometryChanged(QDeclarativeItem *item, const QRectF &newGeometry, const QRectF &oldGeometry);
+    void initResize();
+    void updateSize();
+    inline QSize rootObjectSize() const;
+
+    QDeclarativeGuard<QGraphicsObject> root;
+    QDeclarativeGuard<QDeclarativeItem> declarativeItemRoot;
+    QDeclarativeGuard<QGraphicsWidget> graphicsWidgetRoot;
+
+    QUrl source;
+
+    QDeclarativeEngine* engine;
+    QDeclarativeComponent *component;
+    QBasicTimer resizetimer;
+
+    QDeclarativeView::ResizeMode resizeMode;
+    QSize initialSize;
+    QElapsedTimer frameTimer;
+
+    void init();
+};
+
+void QDeclarativeViewPrivate::execute()
+{
+    Q_Q(QDeclarativeView);
+    if (root) {
+        delete root;
+        root = 0;
+    }
+    if (component) {
+        delete component;
+        component = 0;
+    }
+    if (!source.isEmpty()) {
+        component = new QDeclarativeComponent(engine, source, q);
+        if (!component->isLoading()) {
+            q->continueExecute();
+        } else {
+            QObject::connect(component, SIGNAL(statusChanged(QDeclarativeComponent::Status)), q, SLOT(continueExecute()));
+        }
+    }
+}
+
+void QDeclarativeViewPrivate::itemGeometryChanged(QDeclarativeItem *resizeItem, const QRectF &newGeometry, const QRectF &oldGeometry)
+{
+    Q_Q(QDeclarativeView);
+    if (resizeItem == root && resizeMode == QDeclarativeView::SizeViewToRootObject) {
+        // wait for both width and height to be changed
+        resizetimer.start(0,q);
+    }
+    QDeclarativeItemChangeListener::itemGeometryChanged(resizeItem, newGeometry, oldGeometry);
+}
+
+/*!
+    \class QDeclarativeView
+    \since 4.7
+    \brief The QDeclarativeView class provides a widget for displaying a Qt Declarative user interface.
+
+    QDeclarativeItem objects can be placed on a standard QGraphicsScene and
+    displayed with QGraphicsView. QDeclarativeView is a QGraphicsView subclass
+    provided as a convenience for displaying QML files, and connecting between
+    QML and C++ Qt objects.
+
+    QDeclarativeView provides:
+
+    \list
+    \o Management of QDeclarativeComponent loading and object creation
+    \o Initialization of QGraphicsView for optimal performance with QML using these settings:
+        \list
+        \o QGraphicsView::setOptimizationFlags(QGraphicsView::DontSavePainterState)
+        \o QGraphicsView::setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate)
+        \o QGraphicsScene::setItemIndexMethod(QGraphicsScene::NoIndex)
+        \endlist
+    \o Initialization of QGraphicsView for QML key handling using these settings:
+        \list
+        \o QGraphicsView::viewport()->setFocusPolicy(Qt::NoFocus)
+        \o QGraphicsView::setFocusPolicy(Qt::StrongFocus)
+        \o QGraphicsScene::setStickyFocus(true)
+        \endlist
+    \endlist
+
+    Typical usage:
+
+    \code
+    QDeclarativeView *view = new QDeclarativeView;
+    view->setSource(QUrl::fromLocalFile("myqmlfile.qml"));
+    view->show();
+    \endcode
+
+    Since QDeclarativeView is a QWidget-based class, it can be used to
+    display QML interfaces within QWidget-based GUI applications that do not
+    use the Graphics View framework.
+
+    To receive errors related to loading and executing QML with QDeclarativeView,
+    you can connect to the statusChanged() signal and monitor for QDeclarativeView::Error.
+    The errors are available via QDeclarativeView::errors().
+
+    If you're using your own QGraphicsScene-based scene with QDeclarativeView, remember to
+    enable scene's sticky focus mode and to set itemIndexMethod to QGraphicsScene::NoIndex.
+
+    \sa {Integrating QML Code with Existing Qt UI Code}, {Using QML Bindings in C++ Applications}
+*/
+
+
+/*! \fn void QDeclarativeView::sceneResized(QSize size)
+  This signal is emitted when the view is resized to \a size.
+*/
+
+/*! \fn void QDeclarativeView::statusChanged(QDeclarativeView::Status status)
+    This signal is emitted when the component's current \a status changes.
+*/
+
+/*!
+  \fn QDeclarativeView::QDeclarativeView(QWidget *parent)
+
+  Constructs a QDeclarativeView with the given \a parent.
+*/
+QDeclarativeView::QDeclarativeView(QWidget *parent)
+    : QGraphicsView(*(new QDeclarativeViewPrivate), parent)
+{
+    Q_D(QDeclarativeView);
+    setSizePolicy(QSizePolicy::Preferred,QSizePolicy::Preferred);
+    d->init();
+}
+
+/*!
+  \fn QDeclarativeView::QDeclarativeView(const QUrl &source, QWidget *parent)
+
+  Constructs a QDeclarativeView with the given QML \a source and \a parent.
+*/
+QDeclarativeView::QDeclarativeView(const QUrl &source, QWidget *parent)
+    : QGraphicsView(*(new QDeclarativeViewPrivate), parent)
+{
+    Q_D(QDeclarativeView);
+    setSizePolicy(QSizePolicy::Preferred,QSizePolicy::Preferred);
+    d->init();
+    setSource(source);
+}
+
+void QDeclarativeViewPrivate::init()
+{
+    Q_Q(QDeclarativeView);
+    engine = new QDeclarativeEngine();
+    q->setScene(new QDeclarativeScene(q));
+
+    q->setOptimizationFlags(QGraphicsView::DontSavePainterState);
+    q->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    q->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
+    q->setFrameStyle(0);
+
+    // These seem to give the best performance
+    q->setViewportUpdateMode(QGraphicsView::BoundingRectViewportUpdate);
+    q->scene()->setItemIndexMethod(QGraphicsScene::NoIndex);
+    q->viewport()->setFocusPolicy(Qt::NoFocus);
+    q->setFocusPolicy(Qt::StrongFocus);
+
+    q->scene()->setStickyFocus(true);  //### needed for correct focus handling
+
+#ifdef QDECLARATIVEVIEW_NOBACKGROUND
+    q->setAttribute(Qt::WA_OpaquePaintEvent);
+    q->setAttribute(Qt::WA_NoSystemBackground);
+    q->viewport()->setAttribute(Qt::WA_OpaquePaintEvent);
+    q->viewport()->setAttribute(Qt::WA_NoSystemBackground);
+#endif
+}
+
+/*!
+    Destroys the view.
+ */
+QDeclarativeView::~QDeclarativeView()
+{
+}
+
+/*! \property QDeclarativeView::source
+  \brief The URL of the source of the QML component.
+
+  Changing this property causes the QML component to be reloaded.
+
+    Ensure that the URL provided is full and correct, in particular, use
+    \l QUrl::fromLocalFile() when loading a file from the local filesystem.
+ */
+
+/*!
+    Sets the source to the \a url, loads the QML component and instantiates it.
+
+    Ensure that the URL provided is full and correct, in particular, use
+    \l QUrl::fromLocalFile() when loading a file from the local filesystem.
+
+    Calling this methods multiple times with the same url will result
+    in the QML being reloaded.
+ */
+void QDeclarativeView::setSource(const QUrl& url)
+{
+    Q_D(QDeclarativeView);
+    d->source = url;
+    d->execute();
+}
+
+/*!
+  Returns the source URL, if set.
+
+  \sa setSource()
+ */
+QUrl QDeclarativeView::source() const
+{
+    Q_D(const QDeclarativeView);
+    return d->source;
+}
+
+/*!
+  Returns a pointer to the QDeclarativeEngine used for instantiating
+  QML Components.
+ */
+QDeclarativeEngine* QDeclarativeView::engine() const
+{
+    Q_D(const QDeclarativeView);
+    return d->engine;
+}
+
+/*!
+  This function returns the root of the context hierarchy.  Each QML
+  component is instantiated in a QDeclarativeContext.  QDeclarativeContext's are
+  essential for passing data to QML components.  In QML, contexts are
+  arranged hierarchically and this hierarchy is managed by the
+  QDeclarativeEngine.
+ */
+QDeclarativeContext* QDeclarativeView::rootContext() const
+{
+    Q_D(const QDeclarativeView);
+    return d->engine->rootContext();
+}
+
+/*!
+    \enum QDeclarativeView::Status
+    Specifies the loading status of the QDeclarativeView.
+
+    \value Null This QDeclarativeView has no source set.
+    \value Ready This QDeclarativeView has loaded and created the QML component.
+    \value Loading This QDeclarativeView is loading network data.
+    \value Error One or more errors has occurred. Call errors() to retrieve a list
+           of errors.
+*/
+
+/*! \enum QDeclarativeView::ResizeMode
+
+  This enum specifies how to resize the view.
+
+  \value SizeViewToRootObject The view resizes with the root item in the QML.
+  \value SizeRootObjectToView The view will automatically resize the root item to the size of the view.
+*/
+
+/*!
+    \property QDeclarativeView::status
+    The component's current \l{QDeclarativeView::Status} {status}.
+*/
+
+QDeclarativeView::Status QDeclarativeView::status() const
+{
+    Q_D(const QDeclarativeView);
+    if (!d->component)
+        return QDeclarativeView::Null;
+
+    return QDeclarativeView::Status(d->component->status());
+}
+
+/*!
+    Return the list of errors that occurred during the last compile or create
+    operation.  When the status is not Error, an empty list is returned.
+*/
+QList<QDeclarativeError> QDeclarativeView::errors() const
+{
+    Q_D(const QDeclarativeView);
+    if (d->component)
+        return d->component->errors();
+    return QList<QDeclarativeError>();
+}
+
+/*!
+    \property QDeclarativeView::resizeMode
+    \brief whether the view should resize the canvas contents
+
+    If this property is set to SizeViewToRootObject (the default), the view
+    resizes with the root item in the QML.
+
+    If this property is set to SizeRootObjectToView, the view will
+    automatically resize the root item.
+
+    Regardless of this property, the sizeHint of the view
+    is the initial size of the root item. Note though that
+    since QML may load dynamically, that size may change.
+*/
+
+void QDeclarativeView::setResizeMode(ResizeMode mode)
+{
+    Q_D(QDeclarativeView);
+    if (d->resizeMode == mode)
+        return;
+
+    if (d->declarativeItemRoot) {
+        if (d->resizeMode == SizeViewToRootObject) {
+            QDeclarativeItemPrivate *p =
+                static_cast<QDeclarativeItemPrivate *>(QGraphicsItemPrivate::get(d->declarativeItemRoot));
+            p->removeItemChangeListener(d, QDeclarativeItemPrivate::Geometry);
+        }
+    } else if (d->graphicsWidgetRoot) {
+         if (d->resizeMode == QDeclarativeView::SizeViewToRootObject) {
+             d->graphicsWidgetRoot->removeEventFilter(this);
+         }
+    }
+
+    d->resizeMode = mode;
+    if (d->root) {
+        d->initResize();
+    }
+}
+
+void QDeclarativeViewPrivate::initResize()
+{
+    Q_Q(QDeclarativeView);
+    if (declarativeItemRoot) {
+        if (resizeMode == QDeclarativeView::SizeViewToRootObject) {
+            QDeclarativeItemPrivate *p =
+                static_cast<QDeclarativeItemPrivate *>(QGraphicsItemPrivate::get(declarativeItemRoot));
+            p->addItemChangeListener(this, QDeclarativeItemPrivate::Geometry);
+        }
+    } else if (graphicsWidgetRoot) {
+        if (resizeMode == QDeclarativeView::SizeViewToRootObject) {
+            graphicsWidgetRoot->installEventFilter(q);
+        }
+    }
+    updateSize();
+}
+
+void QDeclarativeViewPrivate::updateSize()
+{
+    Q_Q(QDeclarativeView);
+    if (!root)
+        return;
+    if (declarativeItemRoot) {
+        if (resizeMode == QDeclarativeView::SizeViewToRootObject) {
+            QSize newSize = QSize(declarativeItemRoot->width(), declarativeItemRoot->height());
+            if (newSize.isValid() && newSize != q->size()) {
+                q->resize(newSize);
+            }
+        } else if (resizeMode == QDeclarativeView::SizeRootObjectToView) {
+            if (!qFuzzyCompare(q->width(), declarativeItemRoot->width()))
+                declarativeItemRoot->setWidth(q->width());
+            if (!qFuzzyCompare(q->height(), declarativeItemRoot->height()))
+                declarativeItemRoot->setHeight(q->height());
+        }
+    } else if (graphicsWidgetRoot) {
+        if (resizeMode == QDeclarativeView::SizeViewToRootObject) {
+            QSize newSize = QSize(graphicsWidgetRoot->size().width(), graphicsWidgetRoot->size().height());
+            if (newSize.isValid() && newSize != q->size()) {
+                q->resize(newSize);
+            }
+        } else if (resizeMode == QDeclarativeView::SizeRootObjectToView) {
+            QSizeF newSize = QSize(q->size().width(), q->size().height());
+            if (newSize.isValid() && newSize != graphicsWidgetRoot->size()) {
+                graphicsWidgetRoot->resize(newSize);
+            }
+        }
+    }
+    q->updateGeometry();
+}
+
+QSize QDeclarativeViewPrivate::rootObjectSize() const
+{
+    QSize rootObjectSize(0,0);
+    int widthCandidate = -1;
+    int heightCandidate = -1;
+    if (root) {
+        QSizeF size = root->boundingRect().size();
+        widthCandidate = size.width();
+        heightCandidate = size.height();
+    }
+    if (widthCandidate > 0) {
+        rootObjectSize.setWidth(widthCandidate);
+    }
+    if (heightCandidate > 0) {
+        rootObjectSize.setHeight(heightCandidate);
+    }
+    return rootObjectSize;
+}
+
+QDeclarativeView::ResizeMode QDeclarativeView::resizeMode() const
+{
+    Q_D(const QDeclarativeView);
+    return d->resizeMode;
+}
+
+/*!
+  \internal
+ */
+void QDeclarativeView::continueExecute()
+{
+    Q_D(QDeclarativeView);
+    disconnect(d->component, SIGNAL(statusChanged(QDeclarativeComponent::Status)), this, SLOT(continueExecute()));
+
+    if (d->component->isError()) {
+        QList<QDeclarativeError> errorList = d->component->errors();
+        foreach (const QDeclarativeError &error, errorList) {
+            qWarning() << error;
+        }
+        emit statusChanged(status());
+        return;
+    }
+
+    QObject *obj = d->component->create();
+
+    if(d->component->isError()) {
+        QList<QDeclarativeError> errorList = d->component->errors();
+        foreach (const QDeclarativeError &error, errorList) {
+            qWarning() << error;
+        }
+        emit statusChanged(status());
+        return;
+    }
+
+    setRootObject(obj);
+    emit statusChanged(status());
+}
+
+
+/*!
+  \internal
+*/
+void QDeclarativeView::setRootObject(QObject *obj)
+{
+    Q_D(QDeclarativeView);
+    if (d->root == obj || !scene())
+        return;
+    if (QDeclarativeItem *declarativeItem = qobject_cast<QDeclarativeItem *>(obj)) {
+        scene()->addItem(declarativeItem);
+        d->root = declarativeItem;
+        d->declarativeItemRoot = declarativeItem;
+    } else if (QGraphicsObject *graphicsObject = qobject_cast<QGraphicsObject *>(obj)) {
+        scene()->addItem(graphicsObject);
+        d->root = graphicsObject;
+        if (graphicsObject->isWidget()) {
+            d->graphicsWidgetRoot = static_cast<QGraphicsWidget*>(graphicsObject);
+        } else {
+            qWarning() << "QDeclarativeView::resizeMode is not honored for components of type QGraphicsObject";
+        }
+    } else if (obj) {
+        qWarning() << "QDeclarativeView only supports loading of root objects that derive from QGraphicsObject";
+        if (QWidget* widget  = qobject_cast<QWidget *>(obj)) {
+            window()->setAttribute(Qt::WA_OpaquePaintEvent, false);
+            window()->setAttribute(Qt::WA_NoSystemBackground, false);
+            if (layout() && layout()->count()) {
+                // Hide the QGraphicsView in GV mode.
+                QLayoutItem *item = layout()->itemAt(0);
+                if (item->widget())
+                    item->widget()->hide();
+            }
+            widget->setParent(this);
+            if (isVisible()) {
+                widget->setVisible(true);
+            }
+            resize(widget->size());
+        }
+    }
+
+    if (d->root) {
+        d->initialSize = d->rootObjectSize();
+        if (d->initialSize != size()) {
+            if (!(parentWidget() && parentWidget()->layout())) {
+                resize(d->initialSize);
+            }
+        }
+        d->initResize();
+    }
+}
+
+/*!
+  \internal
+  If the \l {QTimerEvent} {timer event} \a e is this
+  view's resize timer, sceneResized() is emitted.
+ */
+void QDeclarativeView::timerEvent(QTimerEvent* e)
+{
+    Q_D(QDeclarativeView);
+    if (!e || e->timerId() == d->resizetimer.timerId()) {
+        d->updateSize();
+        d->resizetimer.stop();
+    }
+}
+
+/*! \internal */
+bool QDeclarativeView::eventFilter(QObject *watched, QEvent *e)
+{
+    Q_D(QDeclarativeView);
+    if (watched == d->root && d->resizeMode == SizeViewToRootObject) {
+        if (d->graphicsWidgetRoot) {
+            if (e->type() == QEvent::GraphicsSceneResize) {
+                d->updateSize();
+            }
+        }
+    }
+    return QGraphicsView::eventFilter(watched, e);
+}
+
+/*!
+    \internal
+    Preferred size follows the root object geometry.
+*/
+QSize QDeclarativeView::sizeHint() const
+{
+    Q_D(const QDeclarativeView);
+    QSize rootObjectSize = d->rootObjectSize();
+    if (rootObjectSize.isEmpty()) {
+        return size();
+    } else {
+        return rootObjectSize;
+    }
+}
+
+/*!
+  Returns the initial size of the root object
+*/
+QSize QDeclarativeView::initialSize() const
+{
+    Q_D(const QDeclarativeView);
+    return d->initialSize;
+}
+
+/*!
+  Returns the view's root \l {QGraphicsObject} {item}.
+ */
+QGraphicsObject *QDeclarativeView::rootObject() const
+{
+    Q_D(const QDeclarativeView);
+    return d->root;
+}
+
+/*!
+  \internal
+  This function handles the \l {QResizeEvent} {resize event}
+  \a e.
+ */
+void QDeclarativeView::resizeEvent(QResizeEvent *e)
+{
+    Q_D(QDeclarativeView);
+    if (d->resizeMode == SizeRootObjectToView) {
+        d->updateSize();
+    }
+    if (d->declarativeItemRoot) {
+        setSceneRect(QRectF(0, 0, d->declarativeItemRoot->width(), d->declarativeItemRoot->height()));
+    } else if (d->root) {
+        setSceneRect(d->root->boundingRect());
+    } else {
+        setSceneRect(rect());
+    }
+    emit sceneResized(e->size());
+    QGraphicsView::resizeEvent(e);
+}
+
+/*!
+    \internal
+*/
+void QDeclarativeView::paintEvent(QPaintEvent *event)
+{
+    Q_D(QDeclarativeView);
+
+    QDeclarativeDebugTrace::addEvent(QDeclarativeDebugTrace::FramePaint);
+    QDeclarativeDebugTrace::startRange(QDeclarativeDebugTrace::Painting);
+
+    int time = 0;
+    if (frameRateDebug())
+        time = d->frameTimer.restart();
+
+    QGraphicsView::paintEvent(event);
+
+    QDeclarativeDebugTrace::endRange(QDeclarativeDebugTrace::Painting);
+
+    if (frameRateDebug())
+        qDebug() << "paintEvent:" << d->frameTimer.elapsed() << "time since last frame:" << time;
+
+#if QT_SHOW_DECLARATIVEVIEW_FPS
+    static QTime timer;
+    static int frames;
+
+    if (frames == 0) {
+        timer.start();
+    } else if (timer.elapsed() > 5000) {
+        qreal avgtime = timer.elapsed() / (qreal) frames;
+        qDebug("Average time per frame: %f ms (%i fps)", avgtime, int(1000 / avgtime));
+        timer.start();
+        frames = 0;
+    }
+    ++frames;
+    scene()->update();
+#endif
+
+}
+
+QT_END_NAMESPACE