Say hello to QtQuick module

This change moves the QtQuick 2 types and C++ API (including
SceneGraph) to a new module (AKA library), QtQuick.

99% of this change is moving files from src/declarative to
src/quick, and from tests/auto/declarative to
tests/auto/qtquick2.

The loading of QtQuick 2 ("import QtQuick 2.0") is now delegated to
a plugin, src/imports/qtquick2, just like it's done for QtQuick 1.

All tools, examples, and tests that use QtQuick C++ API have gotten
"QT += quick" or "QT += quick-private" added to their .pro file.

A few additional internal QtDeclarative classes had to be exported
(via Q_DECLARATIVE_PRIVATE_EXPORT) since they're needed by the
QtQuick 2 implementation.

The old header locations (e.g. QtDeclarative/qquickitem.h) will
still be supported for some time, but will produce compile-time
warnings. (To avoid the QtQuick implementation using the
compatibility headers (since QtDeclarative's includepath comes
first), a few include statements were modified, e.g. from
"#include <qsgnode.h>" to "#include <QtQuick/qsgnode.h>".)

There's a change in qtbase that automatically adds QtQuick to the
module list if QtDeclarative is used. Together with the compatibility
headers, this should help reduce the migration pain for existing
projects.

In theory, simply getting an existing QtDeclarative-based project
to compile and link shouldn't require any changes for now -- but
porting to the new scheme is of course recommended, and will
eventually become mandatory.

Task-number: QTBUG-22889
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Change-Id: Ia52be9373172ba2f37e7623231ecb060316c96a7
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>

1 files changed, 5238 insertions, 0 deletions

diff --git a/src/quick/items/qquickitem.cpp b/src/quick/items/qquickitem.cpp
new file mode 100644
index 0000000000..a9409ecdf4
--- /dev/null
+++ b/src/quick/items/qquickitem.cpp
@@ -0,0 +1,5238 @@
+/****************************************************************************
+**
+** 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** 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.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qquickitem.h"
+
+#include "qquickcanvas.h"
+#include <QtDeclarative/qjsengine.h>
+#include "qquickcanvas_p.h"
+
+#include "qquickevents_p_p.h"
+
+#include <QtDeclarative/qdeclarativeengine.h>
+#include <QtDeclarative/qdeclarativecomponent.h>
+#include <QtDeclarative/qdeclarativeinfo.h>
+#include <QtGui/qpen.h>
+#include <QtGui/qcursor.h>
+#include <QtGui/qguiapplication.h>
+#include <QtGui/qinputpanel.h>
+#include <QtCore/qdebug.h>
+#include <QtCore/qcoreevent.h>
+#include <QtCore/qnumeric.h>
+
+#include <private/qdeclarativeengine_p.h>
+#include <QtQuick/private/qdeclarativestategroup_p.h>
+#include <private/qdeclarativeopenmetaobject_p.h>
+#include <QtQuick/private/qdeclarativestate_p.h>
+#include <private/qlistmodelinterface_p.h>
+#include <private/qquickitem_p.h>
+
+#include <float.h>
+
+// XXX todo Readd parentNotifier for faster parent bindings
+// XXX todo Check that elements that create items handle memory correctly after visual ownership change
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \qmlclass Transform QQuickTransform
+    \inqmlmodule QtQuick 2
+    \ingroup qml-transform-elements
+    \brief The Transform elements provide a way of building advanced transformations on Items.
+
+    The Transform element is a base type which cannot be instantiated directly.
+    The following concrete Transform types are available:
+
+    \list
+    \o \l Rotation
+    \o \l Scale
+    \o \l Translate
+    \endlist
+
+    The Transform elements let you create and control advanced transformations that can be configured
+    independently using specialized properties.
+
+    You can assign any number of Transform elements to an \l Item. Each Transform is applied in order,
+    one at a time.
+*/
+
+/*!
+    \qmlclass Translate QQuickTranslate
+    \inqmlmodule QtQuick 2
+    \ingroup qml-transform-elements
+    \brief The Translate object provides a way to move an Item without changing its x or y properties.
+
+    The Translate object provides independent control over position in addition to the Item's x and y properties.
+
+    The following example moves the Y axis of the \l Rectangle elements while still allowing the \l Row element
+    to lay the items out as if they had not been transformed:
+    \qml
+    import QtQuick 1.0
+
+    Row {
+        Rectangle {
+            width: 100; height: 100
+            color: "blue"
+            transform: Translate { y: 20 }
+        }
+        Rectangle {
+            width: 100; height: 100
+            color: "red"
+            transform: Translate { y: -20 }
+        }
+    }
+    \endqml
+
+    \image translate.png
+*/
+
+/*!
+    \qmlproperty real QtQuick2::Translate::x
+
+    The translation along the X axis.
+*/
+
+/*!
+    \qmlproperty real QtQuick2::Translate::y
+
+    The translation along the Y axis.
+*/
+
+/*!
+    \qmlclass Scale QQuickScale
+    \inqmlmodule QtQuick 2
+    \ingroup qml-transform-elements
+    \brief The Scale element provides a way to scale an Item.
+
+    The Scale element gives more control over scaling than using \l Item's \l{Item::scale}{scale} property. Specifically,
+    it allows a different scale for the x and y axes, and allows the scale to be relative to an
+    arbitrary point.
+
+    The following example scales the X axis of the Rectangle, relative to its interior point 25, 25:
+    \qml
+    Rectangle {
+        width: 100; height: 100
+        color: "blue"
+        transform: Scale { origin.x: 25; origin.y: 25; xScale: 3}
+    }
+    \endqml
+
+    \sa Rotation, Translate
+*/
+
+/*!
+    \qmlproperty real QtQuick2::Scale::origin.x
+    \qmlproperty real QtQuick2::Scale::origin.y
+
+    The point that the item is scaled from (i.e., the point that stays fixed relative to the parent as
+    the rest of the item grows). By default the origin is 0, 0.
+*/
+
+/*!
+    \qmlproperty real QtQuick2::Scale::xScale
+
+    The scaling factor for the X axis.
+*/
+
+/*!
+    \qmlproperty real QtQuick2::Scale::yScale
+
+    The scaling factor for the Y axis.
+*/
+
+/*!
+    \qmlclass Rotation QQuickRotation
+    \inqmlmodule QtQuick 2
+    \ingroup qml-transform-elements
+    \brief The Rotation object provides a way to rotate an Item.
+
+    The Rotation object gives more control over rotation than using \l Item's \l{Item::rotation}{rotation} property.
+    Specifically, it allows (z axis) rotation to be relative to an arbitrary point.
+
+    The following example rotates a Rectangle around its interior point 25, 25:
+    \qml
+    Rectangle {
+        width: 100; height: 100
+        color: "blue"
+        transform: Rotation { origin.x: 25; origin.y: 25; angle: 45}
+    }
+    \endqml
+
+    Rotation also provides a way to specify 3D-like rotations for Items. For these types of
+    rotations you must specify the axis to rotate around in addition to the origin point.
+
+    The following example shows various 3D-like rotations applied to an \l Image.
+    \snippet doc/src/snippets/declarative/rotation.qml 0
+
+    \image axisrotation.png
+
+    \sa {declarative/ui-components/dialcontrol}{Dial Control example}, {declarative/toys/clocks}{Clocks example}
+*/
+
+/*!
+    \qmlproperty real QtQuick2::Rotation::origin.x
+    \qmlproperty real QtQuick2::Rotation::origin.y
+
+    The origin point of the rotation (i.e., the point that stays fixed relative to the parent as
+    the rest of the item rotates). By default the origin is 0, 0.
+*/
+
+/*!
+    \qmlproperty real QtQuick2::Rotation::axis.x
+    \qmlproperty real QtQuick2::Rotation::axis.y
+    \qmlproperty real QtQuick2::Rotation::axis.z
+
+    The axis to rotate around. For simple (2D) rotation around a point, you do not need to specify an axis,
+    as the default axis is the z axis (\c{ axis { x: 0; y: 0; z: 1 } }).
+
+    For a typical 3D-like rotation you will usually specify both the origin and the axis.
+
+    \image 3d-rotation-axis.png
+*/
+
+/*!
+    \qmlproperty real QtQuick2::Rotation::angle
+
+    The angle to rotate, in degrees clockwise.
+*/
+
+QQuickTransformPrivate::QQuickTransformPrivate()
+{
+}
+
+QQuickTransform::QQuickTransform(QObject *parent)
+: QObject(*(new QQuickTransformPrivate), parent)
+{
+}
+
+QQuickTransform::QQuickTransform(QQuickTransformPrivate &dd, QObject *parent)
+: QObject(dd, parent)
+{
+}
+
+QQuickTransform::~QQuickTransform()
+{
+    Q_D(QQuickTransform);
+    for (int ii = 0; ii < d->items.count(); ++ii) {
+        QQuickItemPrivate *p = QQuickItemPrivate::get(d->items.at(ii));
+        p->transforms.removeOne(this);
+        p->dirty(QQuickItemPrivate::Transform);
+    }
+}
+
+void QQuickTransform::update()
+{
+    Q_D(QQuickTransform);
+    for (int ii = 0; ii < d->items.count(); ++ii) {
+        QQuickItemPrivate *p = QQuickItemPrivate::get(d->items.at(ii));
+        p->dirty(QQuickItemPrivate::Transform);
+    }
+}
+
+QQuickContents::QQuickContents(QQuickItem *item)
+: m_item(item), m_x(0), m_y(0), m_width(0), m_height(0)
+{
+}
+
+QQuickContents::~QQuickContents()
+{
+    QList<QQuickItem *> children = m_item->childItems();
+    for (int i = 0; i < children.count(); ++i) {
+        QQuickItem *child = children.at(i);
+        QQuickItemPrivate::get(child)->removeItemChangeListener(this, QQuickItemPrivate::Geometry | QQuickItemPrivate::Destroyed);
+    }
+}
+
+bool QQuickContents::calcHeight(QQuickItem *changed)
+{
+    qreal oldy = m_y;
+    qreal oldheight = m_height;
+
+    if (changed) {
+        qreal top = oldy;
+        qreal bottom = oldy + oldheight;
+        qreal y = changed->y();
+        if (y + changed->height() > bottom)
+            bottom = y + changed->height();
+        if (y < top)
+            top = y;
+        m_y = top;
+        m_height = bottom - top;
+    } else {
+        qreal top = FLT_MAX;
+        qreal bottom = 0;
+        QList<QQuickItem *> children = m_item->childItems();
+        for (int i = 0; i < children.count(); ++i) {
+            QQuickItem *child = children.at(i);
+            qreal y = child->y();
+            if (y + child->height() > bottom)
+                bottom = y + child->height();
+            if (y < top)
+                top = y;
+        }
+        if (!children.isEmpty())
+            m_y = top;
+        m_height = qMax(bottom - top, qreal(0.0));
+    }
+
+    return (m_height != oldheight || m_y != oldy);
+}
+
+bool QQuickContents::calcWidth(QQuickItem *changed)
+{
+    qreal oldx = m_x;
+    qreal oldwidth = m_width;
+
+    if (changed) {
+        qreal left = oldx;
+        qreal right = oldx + oldwidth;
+        qreal x = changed->x();
+        if (x + changed->width() > right)
+            right = x + changed->width();
+        if (x < left)
+            left = x;
+        m_x = left;
+        m_width = right - left;
+    } else {
+        qreal left = FLT_MAX;
+        qreal right = 0;
+        QList<QQuickItem *> children = m_item->childItems();
+        for (int i = 0; i < children.count(); ++i) {
+            QQuickItem *child = children.at(i);
+            qreal x = child->x();
+            if (x + child->width() > right)
+                right = x + child->width();
+            if (x < left)
+                left = x;
+        }
+        if (!children.isEmpty())
+            m_x = left;
+        m_width = qMax(right - left, qreal(0.0));
+    }
+
+    return (m_width != oldwidth || m_x != oldx);
+}
+
+void QQuickContents::complete()
+{
+    QQuickItemPrivate::get(m_item)->addItemChangeListener(this, QQuickItemPrivate::Children);
+
+    QList<QQuickItem *> children = m_item->childItems();
+    for (int i = 0; i < children.count(); ++i) {
+        QQuickItem *child = children.at(i);
+        QQuickItemPrivate::get(child)->addItemChangeListener(this, QQuickItemPrivate::Geometry | QQuickItemPrivate::Destroyed);
+        //###what about changes to visibility?
+    }
+    calcGeometry();
+}
+
+void QQuickContents::updateRect()
+{
+    QQuickItemPrivate::get(m_item)->emitChildrenRectChanged(rectF());
+}
+
+void QQuickContents::itemGeometryChanged(QQuickItem *changed, const QRectF &newGeometry, const QRectF &oldGeometry)
+{
+    Q_UNUSED(changed)
+    bool wChanged = false;
+    bool hChanged = false;
+    //### we can only pass changed if the left edge has moved left, or the right edge has moved right
+    if (newGeometry.width() != oldGeometry.width() || newGeometry.x() != oldGeometry.x())
+        wChanged = calcWidth(/*changed*/);
+    if (newGeometry.height() != oldGeometry.height() || newGeometry.y() != oldGeometry.y())
+        hChanged = calcHeight(/*changed*/);
+    if (wChanged || hChanged)
+        updateRect();
+}
+
+void QQuickContents::itemDestroyed(QQuickItem *item)
+{
+    if (item)
+        QQuickItemPrivate::get(item)->removeItemChangeListener(this, QQuickItemPrivate::Geometry | QQuickItemPrivate::Destroyed);
+    calcGeometry();
+}
+
+void QQuickContents::itemChildRemoved(QQuickItem *, QQuickItem *item)
+{
+    if (item)
+        QQuickItemPrivate::get(item)->removeItemChangeListener(this, QQuickItemPrivate::Geometry | QQuickItemPrivate::Destroyed);
+    calcGeometry();
+}
+
+void QQuickContents::itemChildAdded(QQuickItem *, QQuickItem *item)
+{
+    if (item)
+        QQuickItemPrivate::get(item)->addItemChangeListener(this, QQuickItemPrivate::Geometry | QQuickItemPrivate::Destroyed);
+    calcGeometry(item);
+}
+
+QQuickItemKeyFilter::QQuickItemKeyFilter(QQuickItem *item)
+: m_processPost(false), m_next(0)
+{
+    QQuickItemPrivate *p = item?QQuickItemPrivate::get(item):0;
+    if (p) {
+        m_next = p->keyHandler;
+        p->keyHandler = this;
+    }
+}
+
+QQuickItemKeyFilter::~QQuickItemKeyFilter()
+{
+}
+
+void QQuickItemKeyFilter::keyPressed(QKeyEvent *event, bool post)
+{
+    if (m_next) m_next->keyPressed(event, post);
+}
+
+void QQuickItemKeyFilter::keyReleased(QKeyEvent *event, bool post)
+{
+    if (m_next) m_next->keyReleased(event, post);
+}
+
+void QQuickItemKeyFilter::inputMethodEvent(QInputMethodEvent *event, bool post)
+{
+    if (m_next)
+        m_next->inputMethodEvent(event, post);
+    else
+        event->ignore();
+}
+
+QVariant QQuickItemKeyFilter::inputMethodQuery(Qt::InputMethodQuery query) const
+{
+    if (m_next) return m_next->inputMethodQuery(query);
+    return QVariant();
+}
+
+void QQuickItemKeyFilter::componentComplete()
+{
+    if (m_next) m_next->componentComplete();
+}
+/*!
+    \qmlclass KeyNavigation QQuickKeyNavigationAttached
+    \inqmlmodule QtQuick 2
+    \ingroup qml-basic-interaction-elements
+    \brief The KeyNavigation attached property supports key navigation by arrow keys.
+
+    Key-based user interfaces commonly allow the use of arrow keys to navigate between
+    focusable items.  The KeyNavigation attached property enables this behavior by providing a
+    convenient way to specify the item that should gain focus when an arrow or tab key is pressed.
+
+    The following example provides key navigation for a 2x2 grid of items:
+
+    \snippet doc/src/snippets/declarative/keynavigation.qml 0
+
+    The top-left item initially receives focus by setting \l {Item::}{focus} to
+    \c true. When an arrow key is pressed, the focus will move to the
+    appropriate item, as defined by the value that has been set for
+    the KeyNavigation \l left, \l right, \l up or \l down properties.
+
+    Note that if a KeyNavigation attached property receives the key press and release
+    events for a requested arrow or tab key, the event is accepted and does not
+    propagate any further.
+
+    By default, KeyNavigation receives key events after the item to which it is attached.
+    If the item accepts the key event, the KeyNavigation attached property will not
+    receive an event for that key.  Setting the \l priority property to
+    \c KeyNavigation.BeforeItem allows the event to be used for key navigation
+    before the item, rather than after.
+
+    If item to which the focus is switching is not enabled or visible, an attempt will
+    be made to skip this item and focus on the next. This is possible if there are
+    a chain of items with the same KeyNavigation handler. If multiple items in a row are not enabled
+    or visible, they will also be skipped.
+
+    KeyNavigation will implicitly set the other direction to return focus to this item. So if you set
+    \l left to another item, \l right will be set on that item's KeyNavigation to set focus back to this
+    item. However, if that item's KeyNavigation has had right explicitly set then no change will occur.
+    This means that the above example could have been written, with the same behaviour, without specifing
+    KeyNavigation.right or KeyNavigation.down for any of the items.
+
+    \sa {Keys}{Keys attached property}
+*/
+
+/*!
+    \qmlproperty Item QtQuick2::KeyNavigation::left
+    \qmlproperty Item QtQuick2::KeyNavigation::right
+    \qmlproperty Item QtQuick2::KeyNavigation::up
+    \qmlproperty Item QtQuick2::KeyNavigation::down
+    \qmlproperty Item QtQuick2::KeyNavigation::tab
+    \qmlproperty Item QtQuick2::KeyNavigation::backtab
+
+    These properties hold the item to assign focus to
+    when the left, right, up or down cursor keys, or the
+    tab key are pressed.
+*/
+
+/*!
+    \qmlproperty Item QtQuick2::KeyNavigation::tab
+    \qmlproperty Item QtQuick2::KeyNavigation::backtab
+
+    These properties hold the item to assign focus to
+    when the Tab key or Shift+Tab key combination (Backtab) are pressed.
+*/
+
+QQuickKeyNavigationAttached::QQuickKeyNavigationAttached(QObject *parent)
+: QObject(*(new QQuickKeyNavigationAttachedPrivate), parent),
+  QQuickItemKeyFilter(qobject_cast<QQuickItem*>(parent))
+{
+    m_processPost = true;
+}
+
+QQuickKeyNavigationAttached *
+QQuickKeyNavigationAttached::qmlAttachedProperties(QObject *obj)
+{
+    return new QQuickKeyNavigationAttached(obj);
+}
+
+QQuickItem *QQuickKeyNavigationAttached::left() const
+{
+    Q_D(const QQuickKeyNavigationAttached);
+    return d->left;
+}
+
+void QQuickKeyNavigationAttached::setLeft(QQuickItem *i)
+{
+    Q_D(QQuickKeyNavigationAttached);
+    if (d->left == i)
+        return;
+    d->left = i;
+    d->leftSet = true;
+    QQuickKeyNavigationAttached* other =
+            qobject_cast<QQuickKeyNavigationAttached*>(qmlAttachedPropertiesObject<QQuickKeyNavigationAttached>(i));
+    if (other && !other->d_func()->rightSet){
+        other->d_func()->right = qobject_cast<QQuickItem*>(parent());
+        emit other->rightChanged();
+    }
+    emit leftChanged();
+}
+
+QQuickItem *QQuickKeyNavigationAttached::right() const
+{
+    Q_D(const QQuickKeyNavigationAttached);
+    return d->right;
+}
+
+void QQuickKeyNavigationAttached::setRight(QQuickItem *i)
+{
+    Q_D(QQuickKeyNavigationAttached);
+    if (d->right == i)
+        return;
+    d->right = i;
+    d->rightSet = true;
+    QQuickKeyNavigationAttached* other =
+            qobject_cast<QQuickKeyNavigationAttached*>(qmlAttachedPropertiesObject<QQuickKeyNavigationAttached>(i));
+    if (other && !other->d_func()->leftSet){
+        other->d_func()->left = qobject_cast<QQuickItem*>(parent());
+        emit other->leftChanged();
+    }
+    emit rightChanged();
+}
+
+QQuickItem *QQuickKeyNavigationAttached::up() const
+{
+    Q_D(const QQuickKeyNavigationAttached);
+    return d->up;
+}
+
+void QQuickKeyNavigationAttached::setUp(QQuickItem *i)
+{
+    Q_D(QQuickKeyNavigationAttached);
+    if (d->up == i)
+        return;
+    d->up = i;
+    d->upSet = true;
+    QQuickKeyNavigationAttached* other =
+            qobject_cast<QQuickKeyNavigationAttached*>(qmlAttachedPropertiesObject<QQuickKeyNavigationAttached>(i));
+    if (other && !other->d_func()->downSet){
+        other->d_func()->down = qobject_cast<QQuickItem*>(parent());
+        emit other->downChanged();
+    }
+    emit upChanged();
+}
+
+QQuickItem *QQuickKeyNavigationAttached::down() const
+{
+    Q_D(const QQuickKeyNavigationAttached);
+    return d->down;
+}
+
+void QQuickKeyNavigationAttached::setDown(QQuickItem *i)
+{
+    Q_D(QQuickKeyNavigationAttached);
+    if (d->down == i)
+        return;
+    d->down = i;
+    d->downSet = true;
+    QQuickKeyNavigationAttached* other =
+            qobject_cast<QQuickKeyNavigationAttached*>(qmlAttachedPropertiesObject<QQuickKeyNavigationAttached>(i));
+    if (other && !other->d_func()->upSet) {
+        other->d_func()->up = qobject_cast<QQuickItem*>(parent());
+        emit other->upChanged();
+    }
+    emit downChanged();
+}
+
+QQuickItem *QQuickKeyNavigationAttached::tab() const
+{
+    Q_D(const QQuickKeyNavigationAttached);
+    return d->tab;
+}
+
+void QQuickKeyNavigationAttached::setTab(QQuickItem *i)
+{
+    Q_D(QQuickKeyNavigationAttached);
+    if (d->tab == i)
+        return;
+    d->tab = i;
+    d->tabSet = true;
+    QQuickKeyNavigationAttached* other =
+            qobject_cast<QQuickKeyNavigationAttached*>(qmlAttachedPropertiesObject<QQuickKeyNavigationAttached>(i));
+    if (other && !other->d_func()->backtabSet) {
+        other->d_func()->backtab = qobject_cast<QQuickItem*>(parent());
+        emit other->backtabChanged();
+    }
+    emit tabChanged();
+}
+
+QQuickItem *QQuickKeyNavigationAttached::backtab() const
+{
+    Q_D(const QQuickKeyNavigationAttached);
+    return d->backtab;
+}
+
+void QQuickKeyNavigationAttached::setBacktab(QQuickItem *i)
+{
+    Q_D(QQuickKeyNavigationAttached);
+    if (d->backtab == i)
+        return;
+    d->backtab = i;
+    d->backtabSet = true;
+    QQuickKeyNavigationAttached* other =
+            qobject_cast<QQuickKeyNavigationAttached*>(qmlAttachedPropertiesObject<QQuickKeyNavigationAttached>(i));
+    if (other && !other->d_func()->tabSet) {
+        other->d_func()->tab = qobject_cast<QQuickItem*>(parent());
+        emit other->tabChanged();
+    }
+    emit backtabChanged();
+}
+
+/*!
+    \qmlproperty enumeration QtQuick2::KeyNavigation::priority
+
+    This property determines whether the keys are processed before
+    or after the attached item's own key handling.
+
+    \list
+    \o KeyNavigation.BeforeItem - process the key events before normal
+    item key processing.  If the event is used for key navigation, it will be accepted and will not
+    be passed on to the item.
+    \o KeyNavigation.AfterItem (default) - process the key events after normal item key
+    handling.  If the item accepts the key event it will not be
+    handled by the KeyNavigation attached property handler.
+    \endlist
+*/
+QQuickKeyNavigationAttached::Priority QQuickKeyNavigationAttached::priority() const
+{
+    return m_processPost ? AfterItem : BeforeItem;
+}
+
+void QQuickKeyNavigationAttached::setPriority(Priority order)
+{
+    bool processPost = order == AfterItem;
+    if (processPost != m_processPost) {
+        m_processPost = processPost;
+        emit priorityChanged();
+    }
+}
+
+void QQuickKeyNavigationAttached::keyPressed(QKeyEvent *event, bool post)
+{
+    Q_D(QQuickKeyNavigationAttached);
+    event->ignore();
+
+    if (post != m_processPost) {
+        QQuickItemKeyFilter::keyPressed(event, post);
+        return;
+    }
+
+    bool mirror = false;
+    switch (event->key()) {
+    case Qt::Key_Left: {
+        if (QQuickItem *parentItem = qobject_cast<QQuickItem*>(parent()))
+            mirror = QQuickItemPrivate::get(parentItem)->effectiveLayoutMirror;
+        QQuickItem* leftItem = mirror ? d->right : d->left;
+        if (leftItem) {
+            setFocusNavigation(leftItem, mirror ? "right" : "left");
+            event->accept();
+        }
+        break;
+    }
+    case Qt::Key_Right: {
+        if (QQuickItem *parentItem = qobject_cast<QQuickItem*>(parent()))
+            mirror = QQuickItemPrivate::get(parentItem)->effectiveLayoutMirror;
+        QQuickItem* rightItem = mirror ? d->left : d->right;
+        if (rightItem) {
+            setFocusNavigation(rightItem, mirror ? "left" : "right");
+            event->accept();
+        }
+        break;
+    }
+    case Qt::Key_Up:
+        if (d->up) {
+            setFocusNavigation(d->up, "up");
+            event->accept();
+        }
+        break;
+    case Qt::Key_Down:
+        if (d->down) {
+            setFocusNavigation(d->down, "down");
+            event->accept();
+        }
+        break;
+    case Qt::Key_Tab:
+        if (d->tab) {
+            setFocusNavigation(d->tab, "tab");
+            event->accept();
+        }
+        break;
+    case Qt::Key_Backtab:
+        if (d->backtab) {
+            setFocusNavigation(d->backtab, "backtab");
+            event->accept();
+        }
+        break;
+    default:
+        break;
+    }
+
+    if (!event->isAccepted()) QQuickItemKeyFilter::keyPressed(event, post);
+}
+
+void QQuickKeyNavigationAttached::keyReleased(QKeyEvent *event, bool post)
+{
+    Q_D(QQuickKeyNavigationAttached);
+    event->ignore();
+
+    if (post != m_processPost) {
+        QQuickItemKeyFilter::keyReleased(event, post);
+        return;
+    }
+
+    bool mirror = false;
+    switch (event->key()) {
+    case Qt::Key_Left:
+        if (QQuickItem *parentItem = qobject_cast<QQuickItem*>(parent()))
+            mirror = QQuickItemPrivate::get(parentItem)->effectiveLayoutMirror;
+        if (mirror ? d->right : d->left)
+            event->accept();
+        break;
+    case Qt::Key_Right:
+        if (QQuickItem *parentItem = qobject_cast<QQuickItem*>(parent()))
+            mirror = QQuickItemPrivate::get(parentItem)->effectiveLayoutMirror;
+        if (mirror ? d->left : d->right)
+            event->accept();
+        break;
+    case Qt::Key_Up:
+        if (d->up) {
+            event->accept();
+        }
+        break;
+    case Qt::Key_Down:
+        if (d->down) {
+            event->accept();
+        }
+        break;
+    case Qt::Key_Tab:
+        if (d->tab) {
+            event->accept();
+        }
+        break;
+    case Qt::Key_Backtab:
+        if (d->backtab) {
+            event->accept();
+        }
+        break;
+    default:
+        break;
+    }
+
+    if (!event->isAccepted()) QQuickItemKeyFilter::keyReleased(event, post);
+}
+
+void QQuickKeyNavigationAttached::setFocusNavigation(QQuickItem *currentItem, const char *dir)
+{
+    QQuickItem *initialItem = currentItem;
+    bool isNextItem = false;
+    do {
+        isNextItem = false;
+        if (currentItem->isVisible() && currentItem->isEnabled()) {
+            currentItem->setFocus(true);
+        } else {
+            QObject *attached =
+                qmlAttachedPropertiesObject<QQuickKeyNavigationAttached>(currentItem, false);
+            if (attached) {
+                QQuickItem *tempItem = qvariant_cast<QQuickItem*>(attached->property(dir));
+                if (tempItem) {
+                    currentItem = tempItem;
+                    isNextItem = true;
+                }
+            }
+        }
+    }
+    while (currentItem != initialItem && isNextItem);
+}
+
+const QQuickKeysAttached::SigMap QQuickKeysAttached::sigMap[] = {
+    { Qt::Key_Left, "leftPressed" },
+    { Qt::Key_Right, "rightPressed" },
+    { Qt::Key_Up, "upPressed" },
+    { Qt::Key_Down, "downPressed" },
+    { Qt::Key_Tab, "tabPressed" },
+    { Qt::Key_Backtab, "backtabPressed" },
+    { Qt::Key_Asterisk, "asteriskPressed" },
+    { Qt::Key_NumberSign, "numberSignPressed" },
+    { Qt::Key_Escape, "escapePressed" },
+    { Qt::Key_Return, "returnPressed" },
+    { Qt::Key_Enter, "enterPressed" },
+    { Qt::Key_Delete, "deletePressed" },
+    { Qt::Key_Space, "spacePressed" },
+    { Qt::Key_Back, "backPressed" },
+    { Qt::Key_Cancel, "cancelPressed" },
+    { Qt::Key_Select, "selectPressed" },
+    { Qt::Key_Yes, "yesPressed" },
+    { Qt::Key_No, "noPressed" },
+    { Qt::Key_Context1, "context1Pressed" },
+    { Qt::Key_Context2, "context2Pressed" },
+    { Qt::Key_Context3, "context3Pressed" },
+    { Qt::Key_Context4, "context4Pressed" },
+    { Qt::Key_Call, "callPressed" },
+    { Qt::Key_Hangup, "hangupPressed" },
+    { Qt::Key_Flip, "flipPressed" },
+    { Qt::Key_Menu, "menuPressed" },
+    { Qt::Key_VolumeUp, "volumeUpPressed" },
+    { Qt::Key_VolumeDown, "volumeDownPressed" },
+    { 0, 0 }
+};
+
+bool QQuickKeysAttachedPrivate::isConnected(const char *signalName)
+{
+    return isSignalConnected(signalIndex(signalName));
+}
+
+/*!
+    \qmlclass Keys QQuickKeysAttached
+    \inqmlmodule QtQuick 2
+    \ingroup qml-basic-interaction-elements
+    \brief The Keys attached property provides key handling to Items.
+
+    All visual primitives support key handling via the Keys
+    attached property.  Keys can be handled via the onPressed
+    and onReleased signal properties.
+
+    The signal properties have a \l KeyEvent parameter, named
+    \e event which contains details of the event.  If a key is
+    handled \e event.accepted should be set to true to prevent the
+    event from propagating up the item hierarchy.
+
+    \section1 Example Usage
+
+    The following example shows how the general onPressed handler can
+    be used to test for a certain key; in this case, the left cursor
+    key:
+
+    \snippet doc/src/snippets/declarative/keys/keys-pressed.qml key item
+
+    Some keys may alternatively be handled via specific signal properties,
+    for example \e onSelectPressed.  These handlers automatically set
+    \e event.accepted to true.
+
+    \snippet doc/src/snippets/declarative/keys/keys-handler.qml key item
+
+    See \l{Qt::Key}{Qt.Key} for the list of keyboard codes.
+
+    \section1 Key Handling Priorities
+
+    The Keys attached property can be configured to handle key events
+    before or after the item it is attached to. This makes it possible
+    to intercept events in order to override an item's default behavior,
+    or act as a fallback for keys not handled by the item.
+
+    If \l priority is Keys.BeforeItem (default) the order of key event processing is:
+
+    \list 1
+    \o Items specified in \c forwardTo
+    \o specific key handlers, e.g. onReturnPressed
+    \o onKeyPress, onKeyRelease handlers
+    \o Item specific key handling, e.g. TextInput key handling
+    \o parent item
+    \endlist
+
+    If priority is Keys.AfterItem the order of key event processing is:
+
+    \list 1
+    \o Item specific key handling, e.g. TextInput key handling
+    \o Items specified in \c forwardTo
+    \o specific key handlers, e.g. onReturnPressed
+    \o onKeyPress, onKeyRelease handlers
+    \o parent item
+    \endlist
+
+    If the event is accepted during any of the above steps, key
+    propagation stops.
+
+    \sa KeyEvent, {KeyNavigation}{KeyNavigation attached property}
+*/
+
+/*!
+    \qmlproperty bool QtQuick2::Keys::enabled
+
+    This flags enables key handling if true (default); otherwise
+    no key handlers will be called.
+*/
+
+/*!
+    \qmlproperty enumeration QtQuick2::Keys::priority
+
+    This property determines whether the keys are processed before
+    or after the attached item's own key handling.
+
+    \list
+    \o Keys.BeforeItem (default) - process the key events before normal
+    item key processing.  If the event is accepted it will not
+    be passed on to the item.
+    \o Keys.AfterItem - process the key events after normal item key
+    handling.  If the item accepts the key event it will not be
+    handled by the Keys attached property handler.
+    \endlist
+*/
+
+/*!
+    \qmlproperty list<Object> QtQuick2::Keys::forwardTo
+
+    This property provides a way to forward key presses, key releases, and keyboard input
+    coming from input methods to other items. This can be useful when you want
+    one item to handle some keys (e.g. the up and down arrow keys), and another item to
+    handle other keys (e.g. the left and right arrow keys).  Once an item that has been
+    forwarded keys accepts the event it is no longer forwarded to items later in the
+    list.
+
+    This example forwards key events to two lists:
+    \qml
+    Item {
+        ListView {
+            id: list1
+            // ...
+        }
+        ListView {
+            id: list2
+            // ...
+        }
+        Keys.forwardTo: [list1, list2]
+        focus: true
+    }
+    \endqml
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onPressed(KeyEvent event)
+
+    This handler is called when a key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onReleased(KeyEvent event)
+
+    This handler is called when a key has been released. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit0Pressed(KeyEvent event)
+
+    This handler is called when the digit '0' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit1Pressed(KeyEvent event)
+
+    This handler is called when the digit '1' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit2Pressed(KeyEvent event)
+
+    This handler is called when the digit '2' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit3Pressed(KeyEvent event)
+
+    This handler is called when the digit '3' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit4Pressed(KeyEvent event)
+
+    This handler is called when the digit '4' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit5Pressed(KeyEvent event)
+
+    This handler is called when the digit '5' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit6Pressed(KeyEvent event)
+
+    This handler is called when the digit '6' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit7Pressed(KeyEvent event)
+
+    This handler is called when the digit '7' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit8Pressed(KeyEvent event)
+
+    This handler is called when the digit '8' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDigit9Pressed(KeyEvent event)
+
+    This handler is called when the digit '9' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onLeftPressed(KeyEvent event)
+
+    This handler is called when the Left arrow has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onRightPressed(KeyEvent event)
+
+    This handler is called when the Right arrow has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onUpPressed(KeyEvent event)
+
+    This handler is called when the Up arrow has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDownPressed(KeyEvent event)
+
+    This handler is called when the Down arrow has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onTabPressed(KeyEvent event)
+
+    This handler is called when the Tab key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onBacktabPressed(KeyEvent event)
+
+    This handler is called when the Shift+Tab key combination (Backtab) has
+    been pressed. The \a event parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onAsteriskPressed(KeyEvent event)
+
+    This handler is called when the Asterisk '*' has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onEscapePressed(KeyEvent event)
+
+    This handler is called when the Escape key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onReturnPressed(KeyEvent event)
+
+    This handler is called when the Return key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onEnterPressed(KeyEvent event)
+
+    This handler is called when the Enter key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onDeletePressed(KeyEvent event)
+
+    This handler is called when the Delete key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onSpacePressed(KeyEvent event)
+
+    This handler is called when the Space key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onBackPressed(KeyEvent event)
+
+    This handler is called when the Back key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onCancelPressed(KeyEvent event)
+
+    This handler is called when the Cancel key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onSelectPressed(KeyEvent event)
+
+    This handler is called when the Select key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onYesPressed(KeyEvent event)
+
+    This handler is called when the Yes key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onNoPressed(KeyEvent event)
+
+    This handler is called when the No key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onContext1Pressed(KeyEvent event)
+
+    This handler is called when the Context1 key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onContext2Pressed(KeyEvent event)
+
+    This handler is called when the Context2 key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onContext3Pressed(KeyEvent event)
+
+    This handler is called when the Context3 key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onContext4Pressed(KeyEvent event)
+
+    This handler is called when the Context4 key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onCallPressed(KeyEvent event)
+
+    This handler is called when the Call key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onHangupPressed(KeyEvent event)
+
+    This handler is called when the Hangup key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onFlipPressed(KeyEvent event)
+
+    This handler is called when the Flip key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onMenuPressed(KeyEvent event)
+
+    This handler is called when the Menu key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onVolumeUpPressed(KeyEvent event)
+
+    This handler is called when the VolumeUp key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+/*!
+    \qmlsignal QtQuick2::Keys::onVolumeDownPressed(KeyEvent event)
+
+    This handler is called when the VolumeDown key has been pressed. The \a event
+    parameter provides information about the event.
+*/
+
+QQuickKeysAttached::QQuickKeysAttached(QObject *parent)
+: QObject(*(new QQuickKeysAttachedPrivate), parent),
+  QQuickItemKeyFilter(qobject_cast<QQuickItem*>(parent))
+{
+    Q_D(QQuickKeysAttached);
+    m_processPost = false;
+    d->item = qobject_cast<QQuickItem*>(parent);
+}
+
+QQuickKeysAttached::~QQuickKeysAttached()
+{
+}
+
+QQuickKeysAttached::Priority QQuickKeysAttached::priority() const
+{
+    return m_processPost ? AfterItem : BeforeItem;
+}
+
+void QQuickKeysAttached::setPriority(Priority order)
+{
+    bool processPost = order == AfterItem;
+    if (processPost != m_processPost) {
+        m_processPost = processPost;
+        emit priorityChanged();
+    }
+}
+
+void QQuickKeysAttached::componentComplete()
+{
+    Q_D(QQuickKeysAttached);
+    if (d->item) {
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *targetItem = d->targets.at(ii);
+            if (targetItem && (targetItem->flags() & QQuickItem::ItemAcceptsInputMethod)) {
+                d->item->setFlag(QQuickItem::ItemAcceptsInputMethod);
+                break;
+            }
+        }
+    }
+}
+
+void QQuickKeysAttached::keyPressed(QKeyEvent *event, bool post)
+{
+    Q_D(QQuickKeysAttached);
+    if (post != m_processPost || !d->enabled || d->inPress) {
+        event->ignore();
+        QQuickItemKeyFilter::keyPressed(event, post);
+        return;
+    }
+
+    // first process forwards
+    if (d->item && d->item->canvas()) {
+        d->inPress = true;
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *i = d->targets.at(ii);
+            if (i && i->isVisible()) {
+                d->item->canvas()->sendEvent(i, event);
+                if (event->isAccepted()) {
+                    d->inPress = false;
+                    return;
+                }
+            }
+        }
+        d->inPress = false;
+    }
+
+    QQuickKeyEvent ke(*event);
+    QByteArray keySignal = keyToSignal(event->key());
+    if (!keySignal.isEmpty()) {
+        keySignal += "(QQuickKeyEvent*)";
+        if (d->isConnected(keySignal)) {
+            // If we specifically handle a key then default to accepted
+            ke.setAccepted(true);
+            int idx = QQuickKeysAttached::staticMetaObject.indexOfSignal(keySignal);
+            metaObject()->method(idx).invoke(this, Qt::DirectConnection, Q_ARG(QQuickKeyEvent*, &ke));
+        }
+    }
+    if (!ke.isAccepted())
+        emit pressed(&ke);
+    event->setAccepted(ke.isAccepted());
+
+    if (!event->isAccepted()) QQuickItemKeyFilter::keyPressed(event, post);
+}
+
+void QQuickKeysAttached::keyReleased(QKeyEvent *event, bool post)
+{
+    Q_D(QQuickKeysAttached);
+    if (post != m_processPost || !d->enabled || d->inRelease) {
+        event->ignore();
+        QQuickItemKeyFilter::keyReleased(event, post);
+        return;
+    }
+
+    if (d->item && d->item->canvas()) {
+        d->inRelease = true;
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *i = d->targets.at(ii);
+            if (i && i->isVisible()) {
+                d->item->canvas()->sendEvent(i, event);
+                if (event->isAccepted()) {
+                    d->inRelease = false;
+                    return;
+                }
+            }
+        }
+        d->inRelease = false;
+    }
+
+    QQuickKeyEvent ke(*event);
+    emit released(&ke);
+    event->setAccepted(ke.isAccepted());
+
+    if (!event->isAccepted()) QQuickItemKeyFilter::keyReleased(event, post);
+}
+
+void QQuickKeysAttached::inputMethodEvent(QInputMethodEvent *event, bool post)
+{
+    Q_D(QQuickKeysAttached);
+    if (post == m_processPost && d->item && !d->inIM && d->item->canvas()) {
+        d->inIM = true;
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *i = d->targets.at(ii);
+            if (i && i->isVisible() && (i->flags() & QQuickItem::ItemAcceptsInputMethod)) {
+                d->item->canvas()->sendEvent(i, event);
+                if (event->isAccepted()) {
+                    d->imeItem = i;
+                    d->inIM = false;
+                    return;
+                }
+            }
+        }
+        d->inIM = false;
+    }
+    QQuickItemKeyFilter::inputMethodEvent(event, post);
+}
+
+QVariant QQuickKeysAttached::inputMethodQuery(Qt::InputMethodQuery query) const
+{
+    Q_D(const QQuickKeysAttached);
+    if (d->item) {
+        for (int ii = 0; ii < d->targets.count(); ++ii) {
+            QQuickItem *i = d->targets.at(ii);
+            if (i && i->isVisible() && (i->flags() & QQuickItem::ItemAcceptsInputMethod) && i == d->imeItem) {
+                //### how robust is i == d->imeItem check?
+                QVariant v = i->inputMethodQuery(query);
+                if (v.userType() == QVariant::RectF)
+                    v = d->item->mapRectFromItem(i, v.toRectF());  //### cost?
+                return v;
+            }
+        }
+    }
+    return QQuickItemKeyFilter::inputMethodQuery(query);
+}
+
+QQuickKeysAttached *QQuickKeysAttached::qmlAttachedProperties(QObject *obj)
+{
+    return new QQuickKeysAttached(obj);
+}
+
+/*!
+    \qmlclass LayoutMirroring QQuickLayoutMirroringAttached
+    \inqmlmodule QtQuick 2
+    \ingroup qml-utility-elements
+    \brief The LayoutMirroring attached property is used to mirror layout behavior.
+
+    The LayoutMirroring attached property is used to horizontally mirror \l {anchor-layout}{Item anchors},
+    \l{Using QML Positioner and Repeater Items}{positioner} elements (such as \l Row and \l Grid)
+    and views (such as \l GridView and horizontal \l ListView). Mirroring is a visual change: left
+    anchors become right anchors, and positioner elements like \l Grid and \l Row reverse the
+    horizontal layout of child items.
+
+    Mirroring is enabled for an item by setting the \l enabled property to true. By default, this
+    only affects the item itself; setting the \l childrenInherit property to true propagates the mirroring
+    behavior to all child elements as well. If the \c LayoutMirroring attached property has not been defined
+    for an item, mirroring is not enabled.
+
+    The following example shows mirroring in action. The \l Row below is specified as being anchored
+    to the left of its parent. However, since mirroring has been enabled, the anchor is horizontally
+    reversed and it is now anchored to the right. Also, since items in a \l Row are positioned
+    from left to right by default, they are now positioned from right to left instead, as demonstrated
+    by the numbering and opacity of the items:
+
+    \snippet doc/src/snippets/declarative/layoutmirroring.qml 0
+
+    \image layoutmirroring.png
+
+    Layout mirroring is useful when it is necessary to support both left-to-right and right-to-left
+    layout versions of an application to target different language areas. The \l childrenInherit
+    property allows layout mirroring to be applied without manually setting layout configurations
+    for every item in an application. Keep in mind, however, that mirroring does not affect any
+    positioning that is defined by the \l Item \l {Item::}{x} coordinate value, so even with
+    mirroring enabled, it will often be necessary to apply some layout fixes to support the
+    desired layout direction. Also, it may be necessary to disable the mirroring of individual
+    child items (by setting \l {enabled}{LayoutMirroring.enabled} to false for such items) if
+    mirroring is not the desired behavior, or if the child item already implements mirroring in
+    some custom way.
+
+    See \l {QML Right-to-left User Interfaces} for further details on using \c LayoutMirroring and
+    other related features to implement right-to-left support for an application.
+*/
+
+/*!
+    \qmlproperty bool QtQuick2::LayoutMirroring::enabled
+
+    This property holds whether the item's layout is mirrored horizontally. Setting this to true
+    horizontally reverses \l {anchor-layout}{anchor} settings such that left anchors become right,
+    and right anchors become left. For \l{Using QML Positioner and Repeater Items}{positioner} elements
+    (such as \l Row and \l Grid) and view elements (such as \l {GridView}{GridView} and \l {ListView}{ListView})
+    this also mirrors the horizontal layout direction of the item.
+
+    The default value is false.
+*/
+
+/*!
+    \qmlproperty bool QtQuick2::LayoutMirroring::childrenInherit
+
+    This property holds whether the \l {enabled}{LayoutMirroring.enabled} value for this item
+    is inherited by its children.
+
+    The default value is false.
+*/
+
+
+QQuickLayoutMirroringAttached::QQuickLayoutMirroringAttached(QObject *parent) : QObject(parent), itemPrivate(0)
+{
+    if (QQuickItem *item = qobject_cast<QQuickItem*>(parent)) {
+        itemPrivate = QQuickItemPrivate::get(item);
+        itemPrivate->attachedLayoutDirection = this;
+    } else
+        qmlInfo(parent) << tr("LayoutDirection attached property only works with Items");
+}
+
+QQuickLayoutMirroringAttached * QQuickLayoutMirroringAttached::qmlAttachedProperties(QObject *object)
+{
+    return new QQuickLayoutMirroringAttached(object);
+}
+
+bool QQuickLayoutMirroringAttached::enabled() const
+{
+    return itemPrivate ? itemPrivate->effectiveLayoutMirror : false;
+}
+
+void QQuickLayoutMirroringAttached::setEnabled(bool enabled)
+{
+    if (!itemPrivate)
+        return;
+
+    itemPrivate->isMirrorImplicit = false;
+    if (enabled != itemPrivate->effectiveLayoutMirror) {
+        itemPrivate->setLayoutMirror(enabled);
+        if (itemPrivate->inheritMirrorFromItem)
+             itemPrivate->resolveLayoutMirror();
+    }
+}
+
+void QQuickLayoutMirroringAttached::resetEnabled()
+{
+    if (itemPrivate && !itemPrivate->isMirrorImplicit) {
+        itemPrivate->isMirrorImplicit = true;
+        itemPrivate->resolveLayoutMirror();
+    }
+}
+
+bool QQuickLayoutMirroringAttached::childrenInherit() const
+{
+    return itemPrivate ? itemPrivate->inheritMirrorFromItem : false;
+}
+
+void QQuickLayoutMirroringAttached::setChildrenInherit(bool childrenInherit) {
+    if (itemPrivate && childrenInherit != itemPrivate->inheritMirrorFromItem) {
+        itemPrivate->inheritMirrorFromItem = childrenInherit;
+        itemPrivate->resolveLayoutMirror();
+        childrenInheritChanged();
+    }
+}
+
+void QQuickItemPrivate::resolveLayoutMirror()
+{
+    Q_Q(QQuickItem);
+    if (QQuickItem *parentItem = q->parentItem()) {
+        QQuickItemPrivate *parentPrivate = QQuickItemPrivate::get(parentItem);
+        setImplicitLayoutMirror(parentPrivate->inheritedLayoutMirror, parentPrivate->inheritMirrorFromParent);
+    } else {
+        setImplicitLayoutMirror(isMirrorImplicit ? false : effectiveLayoutMirror, inheritMirrorFromItem);
+    }
+}
+
+void QQuickItemPrivate::setImplicitLayoutMirror(bool mirror, bool inherit)
+{
+    inherit = inherit || inheritMirrorFromItem;
+    if (!isMirrorImplicit && inheritMirrorFromItem)
+        mirror = effectiveLayoutMirror;
+    if (mirror == inheritedLayoutMirror && inherit == inheritMirrorFromParent)
+        return;
+
+    inheritMirrorFromParent = inherit;
+    inheritedLayoutMirror = inheritMirrorFromParent ? mirror : false;
+
+    if (isMirrorImplicit)
+        setLayoutMirror(inherit ? inheritedLayoutMirror : false);
+    for (int i = 0; i < childItems.count(); ++i) {
+        if (QQuickItem *child = qobject_cast<QQuickItem *>(childItems.at(i))) {
+            QQuickItemPrivate *childPrivate = QQuickItemPrivate::get(child);
+            childPrivate->setImplicitLayoutMirror(inheritedLayoutMirror, inheritMirrorFromParent);
+        }
+    }
+}
+
+void QQuickItemPrivate::setLayoutMirror(bool mirror)
+{
+    if (mirror != effectiveLayoutMirror) {
+        effectiveLayoutMirror = mirror;
+        if (_anchors) {
+            QQuickAnchorsPrivate *anchor_d = QQuickAnchorsPrivate::get(_anchors);
+            anchor_d->fillChanged();
+            anchor_d->centerInChanged();
+            anchor_d->updateHorizontalAnchors();
+            emit _anchors->mirroredChanged();
+        }
+        mirrorChange();
+        if (attachedLayoutDirection) {
+            emit attachedLayoutDirection->enabledChanged();
+        }
+    }
+}
+
+/*!
+    \class QQuickItem
+    \brief The QQuickItem class provides the most basic of all visual items in QML.
+
+    \inmodule QtQuick
+
+    All visual items in Qt Declarative inherit from QQuickItem.  Although QQuickItem
+    has no visual appearance, it defines all the properties that are
+    common across visual items - such as the x and y position, the
+    width and height, \l {anchor-layout}{anchoring} and key handling.
+
+    You can subclass QQuickItem to provide your own custom visual item that inherits
+    these features. Note that, because it does not draw anything, QQuickItem sets the
+    QGraphicsItem::ItemHasNoContents flag. If you subclass QQuickItem to create a visual
+    item, you will need to unset this flag.
+
+*/
+
+/*!
+    \qmlclass Item QQuickItem
+    \inqmlmodule QtQuick 2
+    \ingroup qml-basic-visual-elements
+    \brief The Item is the most basic of all visual items in QML.
+
+    All visual items in Qt Declarative inherit from Item.  Although Item
+    has no visual appearance, it defines all the properties that are
+    common across visual items - such as the x and y position, the
+    width and height, \l {anchor-layout}{anchoring} and key handling.
+
+    Item is also useful for grouping items together.
+
+    \qml
+    Item {
+        Image {
+            source: "tile.png"
+        }
+        Image {
+            x: 80
+            width: 100
+            height: 100
+            source: "tile.png"
+        }
+        Image {
+            x: 190
+            width: 100
+            height: 100
+            fillMode: Image.Tile
+            source: "tile.png"
+        }
+    }
+    \endqml
+
+
+    \section1 Key Handling
+
+    Key handling is available to all Item-based visual elements via the \l {Keys}{Keys}
+    attached property.  The \e Keys attached property provides basic handlers such
+    as \l {Keys::onPressed}{onPressed} and \l {Keys::onReleased}{onReleased},
+    as well as handlers for specific keys, such as
+    \l {Keys::onCancelPressed}{onCancelPressed}.  The example below
+    assigns \l {qmlfocus}{focus} to the item and handles
+    the Left key via the general \e onPressed handler and the Select key via the
+    onSelectPressed handler:
+
+    \qml
+    Item {
+        focus: true
+        Keys.onPressed: {
+            if (event.key == Qt.Key_Left) {
+                console.log("move left");
+                event.accepted = true;
+            }
+        }
+        Keys.onSelectPressed: console.log("Selected");
+    }
+    \endqml
+
+    See the \l {Keys}{Keys} attached property for detailed documentation.
+
+    \section1 Layout Mirroring
+
+    Item layouts can be mirrored using the \l {LayoutMirroring}{LayoutMirroring} attached property.
+
+*/
+
+/*!
+    \fn void QQuickItem::childrenRectChanged(const QRectF &)
+    \internal
+*/
+
+/*!
+    \fn void QQuickItem::baselineOffsetChanged(qreal)
+    \internal
+*/
+
+/*!
+    \fn void QQuickItem::stateChanged(const QString &state)
+    \internal
+*/
+
+/*!
+    \fn void QQuickItem::parentChanged(QQuickItem *)
+    \internal
+*/
+
+/*!
+    \fn void QQuickItem::smoothChanged(bool)
+    \internal
+*/
+
+/*!
+    \fn void QQuickItem::clipChanged(bool)
+    \internal
+*/
+
+/*! \fn void QQuickItem::transformOriginChanged(TransformOrigin)
+  \internal
+*/
+
+/*!
+    \fn void QQuickItem::focusChanged(bool)
+    \internal
+*/
+
+/*!
+    \fn void QQuickItem::activeFocusChanged(bool)
+    \internal
+*/
+/*!
+    \fn QQuickItem::QQuickItem(QQuickItem *parent)
+
+    Constructs a QQuickItem with the given \a parent.
+*/
+QQuickItem::QQuickItem(QQuickItem* parent)
+: QObject(*(new QQuickItemPrivate), parent)
+{
+    Q_D(QQuickItem);
+    d->init(parent);
+}
+
+/*! \internal
+*/
+QQuickItem::QQuickItem(QQuickItemPrivate &dd, QQuickItem *parent)
+: QObject(dd, parent)
+{
+    Q_D(QQuickItem);
+    d->init(parent);
+}
+
+#ifndef QT_NO_DEBUG
+static int qt_item_count = 0;
+
+static void qt_print_item_count()
+{
+    qDebug("Number of leaked items: %i", qt_item_count);
+    qt_item_count = -1;
+}
+#endif
+
+/*!
+    Destroys the QQuickItem.
+*/
+QQuickItem::~QQuickItem()
+{
+#ifndef QT_NO_DEBUG
+    --qt_item_count;
+    if (qt_item_count < 0)
+        qDebug("Item destroyed after qt_print_item_count() was called.");
+#endif
+
+    Q_D(QQuickItem);
+
+    if (d->parentItem)
+        setParentItem(0);
+    else if (d->canvas && d->itemNodeInstance)
+        QQuickCanvasPrivate::get(d->canvas)->cleanup(d->itemNodeInstance); // cleanup root
+    // XXX todo - optimize
+    while (!d->childItems.isEmpty())
+        d->childItems.first()->setParentItem(0);
+
+    for (int ii = 0; ii < d->changeListeners.count(); ++ii) {
+        QQuickAnchorsPrivate *anchor = d->changeListeners.at(ii).listener->anchorPrivate();
+        if (anchor)
+            anchor->clearItem(this);
+    }
+
+    /*
+        update item anchors that depended on us unless they are our child (and will also be destroyed),
+        or our sibling, and our parent is also being destroyed.
+    */
+    for (int ii = 0; ii < d->changeListeners.count(); ++ii) {
+        QQuickAnchorsPrivate *anchor = d->changeListeners.at(ii).listener->anchorPrivate();
+        if (anchor && anchor->item && anchor->item->parentItem() && anchor->item->parentItem() != this)
+            anchor->update();
+    }
+
+    for (int ii = 0; ii < d->changeListeners.count(); ++ii) {
+        const QQuickItemPrivate::ChangeListener &change = d->changeListeners.at(ii);
+        if (change.types & QQuickItemPrivate::Destroyed)
+            change.listener->itemDestroyed(this);
+    }
+    d->changeListeners.clear();
+    delete d->_anchorLines; d->_anchorLines = 0;
+    delete d->_anchors; d->_anchors = 0;
+    delete d->_stateGroup; d->_stateGroup = 0;
+    delete d->_contents; d->_contents = 0;
+}
+
+/*!
+    \qmlproperty enumeration QtQuick2::Item::transformOrigin
+    This property holds the origin point around which scale and rotation transform.
+
+    Nine transform origins are available, as shown in the image below.
+
+    \image declarative-transformorigin.png
+
+    This example rotates an image around its bottom-right corner.
+    \qml
+    Image {
+        source: "myimage.png"
+        transformOrigin: Item.BottomRight
+        rotation: 45
+    }
+    \endqml
+
+    The default transform origin is \c Item.Center.
+
+    To set an arbitrary transform origin point use the \l Scale or \l Rotation
+    transform elements.
+*/
+
+/*!
+    \qmlproperty Item QtQuick2::Item::parent
+    This property holds the parent of the item.
+*/
+
+/*!
+    \property QQuickItem::parent
+    This property holds the parent of the item.
+*/
+void QQuickItem::setParentItem(QQuickItem *parentItem)
+{
+    Q_D(QQuickItem);
+    if (parentItem == d->parentItem)
+        return;
+
+    d->removeFromDirtyList();
+
+    QQuickItem *oldParentItem = d->parentItem;
+    QQuickItem *scopeFocusedItem = 0;
+
+    if (oldParentItem) {
+        QQuickItemPrivate *op = QQuickItemPrivate::get(oldParentItem);
+
+        QQuickItem *scopeItem = 0;
+
+        if (d->canvas && hasFocus()) {
+            scopeItem = oldParentItem;
+            while (!scopeItem->isFocusScope()) scopeItem = scopeItem->parentItem();
+            scopeFocusedItem = this;
+        } else if (d->canvas && !isFocusScope() && d->subFocusItem) {
+            scopeItem = oldParentItem;
+            while (!scopeItem->isFocusScope()) scopeItem = scopeItem->parentItem();
+            scopeFocusedItem = d->subFocusItem;
+        }
+
+        if (scopeFocusedItem)
+            QQuickCanvasPrivate::get(d->canvas)->clearFocusInScope(scopeItem, scopeFocusedItem,
+                                                                QQuickCanvasPrivate::DontChangeFocusProperty);
+
+        op->removeChild(this);
+    }
+
+    d->parentItem = parentItem;
+
+    QQuickCanvas *parentCanvas = parentItem?QQuickItemPrivate::get(parentItem)->canvas:0;
+    if (d->canvas != parentCanvas) {
+        QQuickItemPrivate::InitializationState initState;
+        initState.clear();
+        d->initCanvas(&initState, parentCanvas);
+    }
+
+    d->dirty(QQuickItemPrivate::ParentChanged);
+
+    if (d->parentItem)
+        QQuickItemPrivate::get(d->parentItem)->addChild(this);
+
+    d->setEffectiveVisibleRecur(d->calcEffectiveVisible());
+    d->setEffectiveEnableRecur(d->calcEffectiveEnable());
+
+    if (scopeFocusedItem && d->parentItem && d->canvas) {
+        // We need to test whether this item becomes scope focused
+        QQuickItem *scopeItem = 0;
+        scopeItem = d->parentItem;
+        while (!scopeItem->isFocusScope()) scopeItem = scopeItem->parentItem();
+
+        if (scopeItem->scopedFocusItem()) {
+            QQuickItemPrivate::get(scopeFocusedItem)->focus = false;
+            emit scopeFocusedItem->focusChanged(false);
+        } else {
+            QQuickCanvasPrivate::get(d->canvas)->setFocusInScope(scopeItem, scopeFocusedItem,
+                                                              QQuickCanvasPrivate::DontChangeFocusProperty);
+        }
+    }
+
+    d->resolveLayoutMirror();
+
+    d->itemChange(ItemParentHasChanged, d->parentItem);
+
+    emit parentChanged(d->parentItem);
+}
+
+void QQuickItem::stackBefore(const QQuickItem *sibling)
+{
+    Q_D(QQuickItem);
+    if (!sibling || sibling == this || !d->parentItem || d->parentItem != QQuickItemPrivate::get(sibling)->parentItem) {
+        qWarning("QQuickItem::stackBefore: Cannot stack before %p, which must be a sibling", sibling);
+        return;
+    }
+
+    QQuickItemPrivate *parentPrivate = QQuickItemPrivate::get(d->parentItem);
+
+    int myIndex = parentPrivate->childItems.indexOf(this);
+    int siblingIndex = parentPrivate->childItems.indexOf(const_cast<QQuickItem *>(sibling));
+
+    Q_ASSERT(myIndex != -1 && siblingIndex != -1);
+
+    if (myIndex == siblingIndex - 1)
+        return;
+
+    parentPrivate->childItems.removeAt(myIndex);
+
+    if (myIndex < siblingIndex) --siblingIndex;
+
+    parentPrivate->childItems.insert(siblingIndex, this);
+
+    parentPrivate->dirty(QQuickItemPrivate::ChildrenStackingChanged);
+    parentPrivate->markSortedChildrenDirty(this);
+
+    for (int ii = qMin(siblingIndex, myIndex); ii < parentPrivate->childItems.count(); ++ii)
+        QQuickItemPrivate::get(parentPrivate->childItems.at(ii))->siblingOrderChanged();
+}
+
+void QQuickItem::stackAfter(const QQuickItem *sibling)
+{
+    Q_D(QQuickItem);
+    if (!sibling || sibling == this || !d->parentItem || d->parentItem != QQuickItemPrivate::get(sibling)->parentItem) {
+        qWarning("QQuickItem::stackAfter: Cannot stack after %p, which must be a sibling", sibling);
+        return;
+    }
+
+    QQuickItemPrivate *parentPrivate = QQuickItemPrivate::get(d->parentItem);
+
+    int myIndex = parentPrivate->childItems.indexOf(this);
+    int siblingIndex = parentPrivate->childItems.indexOf(const_cast<QQuickItem *>(sibling));
+
+    Q_ASSERT(myIndex != -1 && siblingIndex != -1);
+
+    if (myIndex == siblingIndex + 1)
+        return;
+
+    parentPrivate->childItems.removeAt(myIndex);
+
+    if (myIndex < siblingIndex) --siblingIndex;
+
+    parentPrivate->childItems.insert(siblingIndex + 1, this);
+
+    parentPrivate->dirty(QQuickItemPrivate::ChildrenStackingChanged);
+    parentPrivate->markSortedChildrenDirty(this);
+
+    for (int ii = qMin(myIndex, siblingIndex + 1); ii < parentPrivate->childItems.count(); ++ii)
+        QQuickItemPrivate::get(parentPrivate->childItems.at(ii))->siblingOrderChanged();
+}
+
+/*!
+    Returns the QQuickItem parent of this item.
+*/
+QQuickItem *QQuickItem::parentItem() const
+{
+    Q_D(const QQuickItem);
+    return d->parentItem;
+}
+
+QSGEngine *QQuickItem::sceneGraphEngine() const
+{
+    return canvas()->sceneGraphEngine();
+}
+
+QQuickCanvas *QQuickItem::canvas() const
+{
+    Q_D(const QQuickItem);
+    return d->canvas;
+}
+
+static bool itemZOrder_sort(QQuickItem *lhs, QQuickItem *rhs)
+{
+    return lhs->z() < rhs->z();
+}
+
+QList<QQuickItem *> QQuickItemPrivate::paintOrderChildItems() const
+{
+    if (sortedChildItems)
+        return *sortedChildItems;
+
+    // If none of the items have set Z then the paint order list is the same as
+    // the childItems list.  This is by far the most common case.
+    bool haveZ = false;
+    for (int i = 0; i < childItems.count(); ++i) {
+        if (QQuickItemPrivate::get(childItems.at(i))->z != 0.) {
+            haveZ = true;
+            break;
+        }
+    }
+    if (haveZ) {
+        sortedChildItems = new QList<QQuickItem*>(childItems);
+        qStableSort(sortedChildItems->begin(), sortedChildItems->end(), itemZOrder_sort);
+        return *sortedChildItems;
+    }
+
+    sortedChildItems = const_cast<QList<QQuickItem*>*>(&childItems);
+
+    return childItems;
+}
+
+void QQuickItemPrivate::addChild(QQuickItem *child)
+{
+    Q_Q(QQuickItem);
+
+    Q_ASSERT(!childItems.contains(child));
+
+    childItems.append(child);
+
+    markSortedChildrenDirty(child);
+    dirty(QQuickItemPrivate::ChildrenChanged);
+
+    itemChange(QQuickItem::ItemChildAddedChange, child);
+
+    emit q->childrenChanged();
+}
+
+void QQuickItemPrivate::removeChild(QQuickItem *child)
+{
+    Q_Q(QQuickItem);
+
+    Q_ASSERT(child);
+    Q_ASSERT(childItems.contains(child));
+    childItems.removeOne(child);
+    Q_ASSERT(!childItems.contains(child));
+
+    markSortedChildrenDirty(child);
+    dirty(QQuickItemPrivate::ChildrenChanged);
+
+    itemChange(QQuickItem::ItemChildRemovedChange, child);
+
+    emit q->childrenChanged();
+}
+
+void QQuickItemPrivate::InitializationState::clear()
+{
+    focusScope = 0;
+}
+
+void QQuickItemPrivate::InitializationState::clear(QQuickItem *fs)
+{
+    focusScope = fs;
+}
+
+QQuickItem *QQuickItemPrivate::InitializationState::getFocusScope(QQuickItem *item)
+{
+    if (!focusScope) {
+        QQuickItem *fs = item->parentItem();
+        while (!fs->isFocusScope())
+            fs = fs->parentItem();
+        focusScope = fs;
+    }
+    return focusScope;
+}
+
+void QQuickItemPrivate::initCanvas(InitializationState *state, QQuickCanvas *c)
+{
+    Q_Q(QQuickItem);
+
+    if (canvas) {
+        removeFromDirtyList();
+        QQuickCanvasPrivate *c = QQuickCanvasPrivate::get(canvas);
+        if (polishScheduled)
+            c->itemsToPolish.remove(q);
+        if (c->mouseGrabberItem == q)
+            c->mouseGrabberItem = 0;
+        if ( hoverEnabled )
+            c->hoverItems.removeAll(q);
+        if (itemNodeInstance)
+            c->cleanup(itemNodeInstance);
+    }
+
+    canvas = c;
+
+    if (canvas && polishScheduled)
+        QQuickCanvasPrivate::get(canvas)->itemsToPolish.insert(q);
+
+    itemNodeInstance = 0;
+    opacityNode = 0;
+    clipNode = 0;
+    rootNode = 0;
+    groupNode = 0;
+    paintNode = 0;
+    beforePaintNode = 0;
+
+    InitializationState _dummy;
+    InitializationState *childState = state;
+
+    if (c && q->isFocusScope()) {
+        _dummy.clear(q);
+        childState = &_dummy;
+    }
+
+    for (int ii = 0; ii < childItems.count(); ++ii) {
+        QQuickItem *child = childItems.at(ii);
+        QQuickItemPrivate::get(child)->initCanvas(childState, c);
+    }
+
+    if (c && focus) {
+        // Fixup
+        if (state->getFocusScope(q)->scopedFocusItem()) {
+            focus = false;
+            emit q->focusChanged(false);
+        } else {
+            QQuickCanvasPrivate::get(canvas)->setFocusInScope(state->getFocusScope(q), q);
+        }
+    }
+
+    dirty(Canvas);
+
+    itemChange(QQuickItem::ItemSceneChange, c);
+}
+
+/*!
+Returns a transform that maps points from canvas space into item space.
+*/
+QTransform QQuickItemPrivate::canvasToItemTransform() const
+{
+    // XXX todo - optimize
+    return itemToCanvasTransform().inverted();
+}
+
+/*!
+Returns a transform that maps points from item space into canvas space.
+*/
+QTransform QQuickItemPrivate::itemToCanvasTransform() const
+{
+    // XXX todo
+    QTransform rv = parentItem?QQuickItemPrivate::get(parentItem)->itemToCanvasTransform():QTransform();
+    itemToParentTransform(rv);
+    return rv;
+}
+
+/*!
+Motifies \a t with this items local transform relative to its parent.
+*/
+void QQuickItemPrivate::itemToParentTransform(QTransform &t) const
+{
+    if (x || y)
+        t.translate(x, y);
+
+    if (!transforms.isEmpty()) {
+        QMatrix4x4 m(t);
+        for (int ii = transforms.count() - 1; ii >= 0; --ii)
+            transforms.at(ii)->applyTo(&m);
+        t = m.toTransform();
+    }
+
+    if (scale != 1. || rotation != 0.) {
+        QPointF tp = computeTransformOrigin();
+        t.translate(tp.x(), tp.y());
+        t.scale(scale, scale);
+        t.rotate(rotation);
+        t.translate(-tp.x(), -tp.y());
+    }
+}
+
+
+/*!
+    \qmlproperty real QtQuick2::Item::childrenRect.x
+    \qmlproperty real QtQuick2::Item::childrenRect.y
+    \qmlproperty real QtQuick2::Item::childrenRect.width
+    \qmlproperty real QtQuick2::Item::childrenRect.height
+
+    The childrenRect properties allow an item access to the geometry of its
+    children. This property is useful if you have an item that needs to be
+    sized to fit its children.
+*/
+
+
+/*!
+    \qmlproperty list<Item> QtQuick2::Item::children
+    \qmlproperty list<Object> QtQuick2::Item::resources
+
+    The children property contains the list of visual children of this item.
+    The resources property contains non-visual resources that you want to
+    reference by name.
+
+    Generally you can rely on Item's default property to handle all this for
+    you, but it can come in handy in some cases.
+
+    \qml
+    Item {
+        children: [
+            Text {},
+            Rectangle {}
+        ]
+        resources: [
+            Component {
+                id: myComponent
+                Text {}
+            }
+        ]
+    }
+    \endqml
+*/
+
+/*!
+    Returns true if construction of the QML component is complete; otherwise
+    returns false.
+
+    It is often desirable to delay some processing until the component is
+    completed.
+
+    \sa componentComplete()
+*/
+bool QQuickItem::isComponentComplete() const
+{
+    Q_D(const QQuickItem);
+    return d->componentComplete;
+}
+
+QQuickItemPrivate::QQuickItemPrivate()
+: _anchors(0), _contents(0), baselineOffset(0), _anchorLines(0), _stateGroup(0), origin(QQuickItem::Center),
+
+  flags(0), widthValid(false), heightValid(false), componentComplete(true),
+  keepMouse(false), keepTouch(false), hoverEnabled(false), smooth(false), focus(false), activeFocus(false), notifiedFocus(false),
+  notifiedActiveFocus(false), filtersChildMouseEvents(false), explicitVisible(true),
+  effectiveVisible(true), explicitEnable(true), effectiveEnable(true), polishScheduled(false),
+  inheritedLayoutMirror(false), effectiveLayoutMirror(false), isMirrorImplicit(true),
+  inheritMirrorFromParent(false), inheritMirrorFromItem(false), childrenDoNotOverlap(false),
+
+  canvas(0), parentItem(0), sortedChildItems(&childItems),
+
+  subFocusItem(0),
+
+  x(0), y(0), width(0), height(0), implicitWidth(0), implicitHeight(0),
+  z(0), scale(1), rotation(0), opacity(1),
+
+  attachedLayoutDirection(0), acceptedMouseButtons(0),
+  imHints(Qt::ImhMultiLine),
+
+  keyHandler(0),
+
+  dirtyAttributes(0), nextDirtyItem(0), prevDirtyItem(0),
+
+  itemNodeInstance(0), opacityNode(0), clipNode(0), rootNode(0), groupNode(0), paintNode(0)
+  , beforePaintNode(0), effectRefCount(0), hideRefCount(0)
+{
+}
+
+QQuickItemPrivate::~QQuickItemPrivate()
+{
+    if (sortedChildItems != &childItems)
+        delete sortedChildItems;
+}
+
+void QQuickItemPrivate::init(QQuickItem *parent)
+{
+#ifndef QT_NO_DEBUG
+    ++qt_item_count;
+    static bool atexit_registered = false;
+    if (!atexit_registered) {
+        atexit(qt_print_item_count);
+        atexit_registered = true;
+    }
+#endif
+
+    Q_Q(QQuickItem);
+    baselineOffset.invalidate();
+
+    if (parent) {
+        q->setParentItem(parent);
+        QQuickItemPrivate *parentPrivate = QQuickItemPrivate::get(parent);
+        setImplicitLayoutMirror(parentPrivate->inheritedLayoutMirror, parentPrivate->inheritMirrorFromParent);
+    }
+}
+
+void QQuickItemPrivate::data_append(QDeclarativeListProperty<QObject> *prop, QObject *o)
+{
+    if (!o)
+        return;
+
+    QQuickItem *that = static_cast<QQuickItem *>(prop->object);
+
+    // This test is measurably (albeit only slightly) faster than qobject_cast<>()
+    const QMetaObject *mo = o->metaObject();
+    while (mo && mo != &QQuickItem::staticMetaObject) {
+        mo = mo->d.superdata;
+    }
+
+    if (mo) {
+        QQuickItem *item = static_cast<QQuickItem *>(o);
+        item->setParentItem(that);
+    } else {
+        if (o->inherits("QGraphicsItem"))
+            qWarning("Cannot add a QtQuick 1.0 item (%s) into a QtQuick 2.0 scene!", o->metaObject()->className());
+
+        // XXX todo - do we really want this behavior?
+        o->setParent(that);
+    }
+}
+
+/*!
+    \qmlproperty list<Object> QtQuick2::Item::data
+    \default
+
+    The data property allows you to freely mix visual children and resources
+    in an item.  If you assign a visual item to the data list it becomes
+    a child and if you assign any other object type, it is added as a resource.
+
+    So you can write:
+    \qml
+    Item {
+        Text {}
+        Rectangle {}
+        Timer {}
+    }
+    \endqml
+
+    instead of:
+    \qml
+    Item {
+        children: [
+            Text {},
+            Rectangle {}
+        ]
+        resources: [
+            Timer {}
+        ]
+    }
+    \endqml
+
+    data is a behind-the-scenes property: you should never need to explicitly
+    specify it.
+ */
+
+int QQuickItemPrivate::data_count(QDeclarativeListProperty<QObject> *prop)
+{
+    Q_UNUSED(prop);
+    // XXX todo
+    return 0;
+}
+
+QObject *QQuickItemPrivate::data_at(QDeclarativeListProperty<QObject> *prop, int i)
+{
+    Q_UNUSED(prop);
+    Q_UNUSED(i);
+    // XXX todo
+    return 0;
+}
+
+void QQuickItemPrivate::data_clear(QDeclarativeListProperty<QObject> *prop)
+{
+    Q_UNUSED(prop);
+    // XXX todo
+}
+
+QObject *QQuickItemPrivate::resources_at(QDeclarativeListProperty<QObject> *prop, int index)
+{
+    const QObjectList children = prop->object->children();
+    if (index < children.count())
+        return children.at(index);
+    else
+        return 0;
+}
+
+void QQuickItemPrivate::resources_append(QDeclarativeListProperty<QObject> *prop, QObject *o)
+{
+    // XXX todo - do we really want this behavior?
+    o->setParent(prop->object);
+}
+
+int QQuickItemPrivate::resources_count(QDeclarativeListProperty<QObject> *prop)
+{
+    return prop->object->children().count();
+}
+
+void QQuickItemPrivate::resources_clear(QDeclarativeListProperty<QObject> *prop)
+{
+    // XXX todo - do we really want this behavior?
+    const QObjectList children = prop->object->children();
+    for (int index = 0; index < children.count(); index++)
+        children.at(index)->setParent(0);
+}
+
+QQuickItem *QQuickItemPrivate::children_at(QDeclarativeListProperty<QQuickItem> *prop, int index)
+{
+    QQuickItemPrivate *p = QQuickItemPrivate::get(static_cast<QQuickItem *>(prop->object));
+    if (index >= p->childItems.count() || index < 0)
+        return 0;
+    else
+        return p->childItems.at(index);
+}
+
+void QQuickItemPrivate::children_append(QDeclarativeListProperty<QQuickItem> *prop, QQuickItem *o)
+{
+    if (!o)
+        return;
+
+    QQuickItem *that = static_cast<QQuickItem *>(prop->object);
+    if (o->parentItem() == that)
+        o->setParentItem(0);
+
+    o->setParentItem(that);
+}
+
+int QQuickItemPrivate::children_count(QDeclarativeListProperty<QQuickItem> *prop)
+{
+    QQuickItemPrivate *p = QQuickItemPrivate::get(static_cast<QQuickItem *>(prop->object));
+    return p->childItems.count();
+}
+
+void QQuickItemPrivate::children_clear(QDeclarativeListProperty<QQuickItem> *prop)
+{
+    QQuickItem *that = static_cast<QQuickItem *>(prop->object);
+    QQuickItemPrivate *p = QQuickItemPrivate::get(that);
+    while (!p->childItems.isEmpty())
+        p->childItems.at(0)->setParentItem(0);
+}
+
+int QQuickItemPrivate::transform_count(QDeclarativeListProperty<QQuickTransform> *prop)
+{
+    QQuickItem *that = static_cast<QQuickItem *>(prop->object);
+    return QQuickItemPrivate::get(that)->transforms.count();
+}
+
+void QQuickTransform::appendToItem(QQuickItem *item)
+{
+    Q_D(QQuickTransform);
+    if (!item)
+        return;
+
+    QQuickItemPrivate *p = QQuickItemPrivate::get(item);
+
+    if (!d->items.isEmpty() && !p->transforms.isEmpty() && p->transforms.contains(this)) {
+        p->transforms.removeOne(this);
+        p->transforms.append(this);
+    } else {
+        p->transforms.append(this);
+        d->items.append(item);
+    }
+
+    p->dirty(QQuickItemPrivate::Transform);
+}
+
+void QQuickTransform::prependToItem(QQuickItem *item)
+{
+    Q_D(QQuickTransform);
+    if (!item)
+        return;
+
+    QQuickItemPrivate *p = QQuickItemPrivate::get(item);
+
+    if (!d->items.isEmpty() && !p->transforms.isEmpty() && p->transforms.contains(this)) {
+        p->transforms.removeOne(this);
+        p->transforms.prepend(this);
+    } else {
+        p->transforms.prepend(this);
+        d->items.append(item);
+    }
+
+    p->dirty(QQuickItemPrivate::Transform);
+}
+
+void QQuickItemPrivate::transform_append(QDeclarativeListProperty<QQuickTransform> *prop, QQuickTransform *transform)
+{
+    if (!transform)
+        return;
+
+    QQuickItem *that = static_cast<QQuickItem *>(prop->object);
+    transform->appendToItem(that);
+}
+
+QQuickTransform *QQuickItemPrivate::transform_at(QDeclarativeListProperty<QQuickTransform> *prop, int idx)
+{
+    QQuickItem *that = static_cast<QQuickItem *>(prop->object);
+    QQuickItemPrivate *p = QQuickItemPrivate::get(that);
+
+    if (idx < 0 || idx >= p->transforms.count())
+        return 0;
+    else
+        return p->transforms.at(idx);
+}
+
+void QQuickItemPrivate::transform_clear(QDeclarativeListProperty<QQuickTransform> *prop)
+{
+    QQuickItem *that = static_cast<QQuickItem *>(prop->object);
+    QQuickItemPrivate *p = QQuickItemPrivate::get(that);
+
+    for (int ii = 0; ii < p->transforms.count(); ++ii) {
+        QQuickTransform *t = p->transforms.at(ii);
+        QQuickTransformPrivate *tp = QQuickTransformPrivate::get(t);
+        tp->items.removeOne(that);
+    }
+
+    p->transforms.clear();
+
+    p->dirty(QQuickItemPrivate::Transform);
+}
+
+/*!
+    \property QQuickItem::childrenRect
+    \brief The geometry of an item's children.
+
+    This property holds the (collective) position and size of the item's children.
+*/
+
+/*!
+  \qmlproperty real QtQuick2::Item::x
+  \qmlproperty real QtQuick2::Item::y
+  \qmlproperty real QtQuick2::Item::width
+  \qmlproperty real QtQuick2::Item::height
+
+  Defines the item's position and size relative to its parent.
+
+  \qml
+  Item { x: 100; y: 100; width: 100; height: 100 }
+  \endqml
+ */
+
+/*!
+  \qmlproperty real QtQuick2::Item::z
+
+  Sets the stacking order of sibling items.  By default the stacking order is 0.
+
+  Items with a higher stacking value are drawn on top of siblings with a
+  lower stacking order.  Items with the same stacking value are drawn
+  bottom up in the order they appear.  Items with a negative stacking
+  value are drawn under their parent's content.
+
+  The following example shows the various effects of stacking order.
+
+  \table
+  \row
+  \o \image declarative-item_stacking1.png
+  \o Same \c z - later children above earlier children:
+  \qml
+  Item {
+      Rectangle {
+          color: "red"
+          width: 100; height: 100
+      }
+      Rectangle {
+          color: "blue"
+          x: 50; y: 50; width: 100; height: 100
+      }
+  }
+  \endqml
+  \row
+  \o \image declarative-item_stacking2.png
+  \o Higher \c z on top:
+  \qml
+  Item {
+      Rectangle {
+          z: 1
+          color: "red"
+          width: 100; height: 100
+      }
+      Rectangle {
+          color: "blue"
+          x: 50; y: 50; width: 100; height: 100
+      }
+  }
+  \endqml
+  \row
+  \o \image declarative-item_stacking3.png
+  \o Same \c z - children above parents:
+  \qml
+  Item {
+      Rectangle {
+          color: "red"
+          width: 100; height: 100
+          Rectangle {
+              color: "blue"
+              x: 50; y: 50; width: 100; height: 100
+          }
+      }
+  }
+  \endqml
+  \row
+  \o \image declarative-item_stacking4.png
+  \o Lower \c z below:
+  \qml
+  Item {
+      Rectangle {
+          color: "red"
+          width: 100; height: 100
+          Rectangle {
+              z: -1
+              color: "blue"
+              x: 50; y: 50; width: 100; height: 100
+          }
+      }
+  }
+  \endqml
+  \endtable
+ */
+
+/*!
+    \qmlproperty bool QtQuick2::Item::visible
+
+    This property holds whether the item is visible. By default this is true.
+
+    Setting this property directly affects the \c visible value of child
+    items. When set to \c false, the \c visible values of all child items also
+    become \c false. When set to \c true, the \c visible values of child items
+    are returned to \c true, unless they have explicitly been set to \c false.
+
+    (Because of this flow-on behavior, using the \c visible property may not
+    have the intended effect if a property binding should only respond to
+    explicit property changes. In such cases it may be better to use the
+    \l opacity property instead.)
+
+    Setting this property to \c false automatically causes \l focus to be set
+    to \c false, and this item will longer receive mouse and keyboard events.
+    (In contrast, setting the \l opacity to 0 does not affect the \l focus
+    property and the receiving of key events.)
+
+    \note This property's value is only affected by changes to this property or
+    the parent's \c visible property. It does not change, for example, if this
+    item moves off-screen, or if the \l opacity changes to 0.
+*/
+
+
+/*!
+  \qmlproperty AnchorLine QtQuick2::Item::anchors.top
+  \qmlproperty AnchorLine QtQuick2::Item::anchors.bottom
+  \qmlproperty AnchorLine QtQuick2::Item::anchors.left
+  \qmlproperty AnchorLine QtQuick2::Item::anchors.right
+  \qmlproperty AnchorLine QtQuick2::Item::anchors.horizontalCenter
+  \qmlproperty AnchorLine QtQuick2::Item::anchors.verticalCenter
+  \qmlproperty AnchorLine QtQuick2::Item::anchors.baseline
+
+  \qmlproperty Item QtQuick2::Item::anchors.fill
+  \qmlproperty Item QtQuick2::Item::anchors.centerIn
+
+  \qmlproperty real QtQuick2::Item::anchors.margins
+  \qmlproperty real QtQuick2::Item::anchors.topMargin
+  \qmlproperty real QtQuick2::Item::anchors.bottomMargin
+  \qmlproperty real QtQuick2::Item::anchors.leftMargin
+  \qmlproperty real QtQuick2::Item::anchors.rightMargin
+  \qmlproperty real QtQuick2::Item::anchors.horizontalCenterOffset
+  \qmlproperty real QtQuick2::Item::anchors.verticalCenterOffset
+  \qmlproperty real QtQuick2::Item::anchors.baselineOffset
+
+  \qmlproperty bool QtQuick2::Item::anchors.mirrored
+
+  Anchors provide a way to position an item by specifying its
+  relationship with other items.
+
+  Margins apply to top, bottom, left, right, and fill anchors.
+  The \c anchors.margins property can be used to set all of the various margins at once, to the same value.
+  Note that margins are anchor-specific and are not applied if an item does not
+  use anchors.
+
+  Offsets apply for horizontal center, vertical center, and baseline anchors.
+
+  \table
+  \row
+  \o \image declarative-anchors_example.png
+  \o Text anchored to Image, horizontally centered and vertically below, with a margin.
+  \qml
+  Item {
+      Image {
+          id: pic
+          // ...
+      }
+      Text {
+          id: label
+          anchors.horizontalCenter: pic.horizontalCenter
+          anchors.top: pic.bottom
+          anchors.topMargin: 5
+          // ...
+      }
+  }
+  \endqml
+  \row
+  \o \image declarative-anchors_example2.png
+  \o
+  Left of Text anchored to right of Image, with a margin. The y
+  property of both defaults to 0.
+
+  \qml
+  Item {
+      Image {
+          id: pic
+          // ...
+      }
+      Text {
+          id: label
+          anchors.left: pic.right
+          anchors.leftMargin: 5
+          // ...
+      }
+  }
+  \endqml
+  \endtable
+
+  \c anchors.fill provides a convenient way for one item to have the
+  same geometry as another item, and is equivalent to connecting all
+  four directional anchors.
+
+  To clear an anchor value, set it to \c undefined.
+
+  \c anchors.mirrored returns true it the layout has been \l {LayoutMirroring}{mirrored}.
+
+  \note You can only anchor an item to siblings or a parent.
+
+  For more information see \l {anchor-layout}{Anchor Layouts}.
+*/
+
+/*!
+  \property QQuickItem::baselineOffset
+  \brief The position of the item's baseline in local coordinates.
+
+  The baseline of a \l Text item is the imaginary line on which the text
+  sits. Controls containing text usually set their baseline to the
+  baseline of their text.
+
+  For non-text items, a default baseline offset of 0 is used.
+*/
+QQuickAnchors *QQuickItemPrivate::anchors() const
+{
+    if (!_anchors) {
+        Q_Q(const QQuickItem);
+        _anchors = new QQuickAnchors(const_cast<QQuickItem *>(q));
+        if (!componentComplete)
+            _anchors->classBegin();
+    }
+    return _anchors;
+}
+
+QQuickItemPrivate::AnchorLines *QQuickItemPrivate::anchorLines() const
+{
+    Q_Q(const QQuickItem);
+    if (!_anchorLines) _anchorLines =
+        new AnchorLines(const_cast<QQuickItem *>(q));
+    return _anchorLines;
+}
+
+void QQuickItemPrivate::siblingOrderChanged()
+{
+    Q_Q(QQuickItem);
+    for (int ii = 0; ii < changeListeners.count(); ++ii) {
+        const QQuickItemPrivate::ChangeListener &change = changeListeners.at(ii);
+        if (change.types & QQuickItemPrivate::SiblingOrder) {
+            change.listener->itemSiblingOrderChanged(q);
+        }
+    }
+}
+
+QDeclarativeListProperty<QObject> QQuickItemPrivate::data()
+{
+    return QDeclarativeListProperty<QObject>(q_func(), 0, QQuickItemPrivate::data_append,
+                                             QQuickItemPrivate::data_count,
+                                             QQuickItemPrivate::data_at,
+                                             QQuickItemPrivate::data_clear);
+}
+
+QRectF QQuickItem::childrenRect()
+{
+    Q_D(QQuickItem);
+    if (!d->_contents) {
+        d->_contents = new QQuickContents(this);
+        if (d->componentComplete)
+            d->_contents->complete();
+    }
+    return d->_contents->rectF();
+}
+
+QList<QQuickItem *> QQuickItem::childItems() const
+{
+    Q_D(const QQuickItem);
+    return d->childItems;
+}
+
+bool QQuickItem::clip() const
+{
+    return flags() & ItemClipsChildrenToShape;
+}
+
+void QQuickItem::setClip(bool c)
+{
+    if (clip() == c)
+        return;
+
+    setFlag(ItemClipsChildrenToShape, c);
+
+    emit clipChanged(c);
+}
+
+
+/*!
+  This function is called to handle this item's changes in
+  geometry from \a oldGeometry to \a newGeometry. If the two
+  geometries are the same, it doesn't do anything.
+ */
+void QQuickItem::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
+{
+    Q_D(QQuickItem);
+
+    if (d->_anchors)
+        QQuickAnchorsPrivate::get(d->_anchors)->updateMe();
+
+    bool xChange = (newGeometry.x() != oldGeometry.x());
+    bool yChange = (newGeometry.y() != oldGeometry.y());
+    bool widthChange = (newGeometry.width() != oldGeometry.width());
+    bool heightChange = (newGeometry.height() != oldGeometry.height());
+
+    for (int ii = 0; ii < d->changeListeners.count(); ++ii) {
+        const QQuickItemPrivate::ChangeListener &change = d->changeListeners.at(ii);
+        if (change.types & QQuickItemPrivate::Geometry) {
+            if (change.gTypes == QQuickItemPrivate::GeometryChange) {
+                change.listener->itemGeometryChanged(this, newGeometry, oldGeometry);
+            } else if ((xChange && (change.gTypes & QQuickItemPrivate::XChange)) ||
+                       (yChange && (change.gTypes & QQuickItemPrivate::YChange)) ||
+                       (widthChange && (change.gTypes & QQuickItemPrivate::WidthChange)) ||
+                       (heightChange && (change.gTypes & QQuickItemPrivate::HeightChange))) {
+                change.listener->itemGeometryChanged(this, newGeometry, oldGeometry);
+            }
+        }
+    }
+
+    if (xChange)
+        emit xChanged();
+    if (yChange)
+        emit yChanged();
+    if (widthChange)
+        emit widthChanged();
+    if (heightChange)
+        emit heightChanged();
+}
+
+/*!
+    Called by the rendering thread when it is time to sync the state of the QML objects with the
+    scene graph objects. The function should return the root of the scene graph subtree for
+    this item. \a oldNode is the node that was returned the last time the function was called.
+
+    The main thread is blocked while this function is executed so it is safe to read
+    values from the QQuickItem instance and other objects in the main thread.
+
+    \warning This is the only function in which it is allowed to make use of scene graph
+    objects from the main thread. Use of scene graph objects outside this function will
+    result in race conditions and potential crashes.
+ */
+
+QSGNode *QQuickItem::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *)
+{
+    delete oldNode;
+    return 0;
+}
+
+QSGTransformNode *QQuickItemPrivate::createTransformNode()
+{
+    return new QSGTransformNode;
+}
+
+void QQuickItem::updatePolish()
+{
+}
+
+void QQuickItemPrivate::removeItemChangeListener(QQuickItemChangeListener *listener, ChangeTypes types)
+{
+    ChangeListener change(listener, types);
+    changeListeners.removeOne(change);
+}
+
+void QQuickItemPrivate::updateOrAddGeometryChangeListener(QQuickItemChangeListener *listener, GeometryChangeTypes types)
+{
+    ChangeListener change(listener, types);
+    int index = changeListeners.find(change);
+    if (index > -1)
+        changeListeners[index].gTypes = change.gTypes;  //we may have different GeometryChangeTypes
+    else
+        changeListeners.append(change);
+}
+
+void QQuickItemPrivate::updateOrRemoveGeometryChangeListener(QQuickItemChangeListener *listener, GeometryChangeTypes types)
+{
+    ChangeListener change(listener, types);
+    if (types == NoChange) {
+        changeListeners.removeOne(change);
+    } else {
+        int index = changeListeners.find(change);
+        if (index > -1)
+            changeListeners[index].gTypes = change.gTypes;  //we may have different GeometryChangeTypes
+    }
+}
+
+void QQuickItem::keyPressEvent(QKeyEvent *event)
+{
+    event->ignore();
+}
+
+void QQuickItem::keyReleaseEvent(QKeyEvent *event)
+{
+    event->ignore();
+}
+
+void QQuickItem::inputMethodEvent(QInputMethodEvent *event)
+{
+    event->ignore();
+}
+
+void QQuickItem::focusInEvent(QFocusEvent *)
+{
+}
+
+void QQuickItem::focusOutEvent(QFocusEvent *)
+{
+}
+
+void QQuickItem::mousePressEvent(QMouseEvent *event)
+{
+    event->ignore();
+}
+
+void QQuickItem::mouseMoveEvent(QMouseEvent *event)
+{
+    event->ignore();
+}
+
+void QQuickItem::mouseReleaseEvent(QMouseEvent *event)
+{
+    event->ignore();
+}
+
+void QQuickItem::mouseDoubleClickEvent(QMouseEvent *event)
+{
+    mousePressEvent(event);
+}
+
+void QQuickItem::mouseUngrabEvent()
+{
+    // XXX todo
+}
+
+void QQuickItem::touchUngrabEvent()
+{
+    // XXX todo
+}
+
+void QQuickItem::wheelEvent(QWheelEvent *event)
+{
+    event->ignore();
+}
+
+void QQuickItem::touchEvent(QTouchEvent *event)
+{
+    event->ignore();
+}
+
+void QQuickItem::hoverEnterEvent(QHoverEvent *event)
+{
+    Q_UNUSED(event);
+}
+
+void QQuickItem::hoverMoveEvent(QHoverEvent *event)
+{
+    Q_UNUSED(event);
+}
+
+void QQuickItem::hoverLeaveEvent(QHoverEvent *event)
+{
+    Q_UNUSED(event);
+}
+
+void QQuickItem::dragEnterEvent(QDragEnterEvent *event)
+{
+    Q_UNUSED(event);
+}
+
+void QQuickItem::dragMoveEvent(QDragMoveEvent *event)
+{
+
+    Q_UNUSED(event);
+}
+
+void QQuickItem::dragLeaveEvent(QDragLeaveEvent *event)
+{
+
+    Q_UNUSED(event);
+}
+
+void QQuickItem::dropEvent(QDropEvent *event)
+{
+    Q_UNUSED(event);
+}
+
+bool QQuickItem::childMouseEventFilter(QQuickItem *, QEvent *)
+{
+    return false;
+}
+
+void QQuickItem::windowDeactivateEvent()
+{
+    foreach (QQuickItem* item, childItems()) {
+        item->windowDeactivateEvent();
+    }
+}
+
+Qt::InputMethodHints QQuickItem::inputMethodHints() const
+{
+    Q_D(const QQuickItem);
+    return d->imHints;
+}
+
+void QQuickItem::setInputMethodHints(Qt::InputMethodHints hints)
+{
+    Q_D(QQuickItem);
+    d->imHints = hints;
+
+    if (!d->canvas || d->canvas->activeFocusItem() != this)
+        return;
+
+    QInputPanel *p = qApp->inputPanel();
+    if (p->inputItem() == this)
+        qApp->inputPanel()->update(Qt::ImHints);
+}
+
+void QQuickItem::updateMicroFocus()
+{
+    QInputPanel *p = qApp->inputPanel();
+    if (p->inputItem() == this)
+        qApp->inputPanel()->update(Qt::ImQueryInput);
+}
+
+QVariant QQuickItem::inputMethodQuery(Qt::InputMethodQuery query) const
+{
+    Q_D(const QQuickItem);
+    QVariant v;
+
+    switch (query) {
+    case Qt::ImEnabled:
+        v = (bool)(flags() & ItemAcceptsInputMethod);
+        break;
+    case Qt::ImHints:
+        v = (int)inputMethodHints();
+        break;
+    case Qt::ImCursorRectangle:
+    case Qt::ImFont:
+    case Qt::ImCursorPosition:
+    case Qt::ImSurroundingText:
+    case Qt::ImCurrentSelection:
+    case Qt::ImMaximumTextLength:
+    case Qt::ImAnchorPosition:
+    case Qt::ImPreferredLanguage:
+        if (d->keyHandler)
+            v = d->keyHandler->inputMethodQuery(query);
+    default:
+        break;
+    }
+
+    return v;
+}
+
+QQuickAnchorLine QQuickItemPrivate::left() const
+{
+    return anchorLines()->left;
+}
+
+QQuickAnchorLine QQuickItemPrivate::right() const
+{
+    return anchorLines()->right;
+}
+
+QQuickAnchorLine QQuickItemPrivate::horizontalCenter() const
+{
+    return anchorLines()->hCenter;
+}
+
+QQuickAnchorLine QQuickItemPrivate::top() const
+{
+    return anchorLines()->top;
+}
+
+QQuickAnchorLine QQuickItemPrivate::bottom() const
+{
+    return anchorLines()->bottom;
+}
+
+QQuickAnchorLine QQuickItemPrivate::verticalCenter() const
+{
+    return anchorLines()->vCenter;
+}
+
+QQuickAnchorLine QQuickItemPrivate::baseline() const
+{
+    return anchorLines()->baseline;
+}
+
+qreal QQuickItem::baselineOffset() const
+{
+    Q_D(const QQuickItem);
+    if (!d->baselineOffset.isValid()) {
+        return 0.0;
+    } else
+        return d->baselineOffset;
+}
+
+void QQuickItem::setBaselineOffset(qreal offset)
+{
+    Q_D(QQuickItem);
+    if (offset == d->baselineOffset)
+        return;
+
+    d->baselineOffset = offset;
+
+    for (int ii = 0; ii < d->changeListeners.count(); ++ii) {
+        const QQuickItemPrivate::ChangeListener &change = d->changeListeners.at(ii);
+        if (change.types & QQuickItemPrivate::Geometry) {
+            QQuickAnchorsPrivate *anchor = change.listener->anchorPrivate();
+            if (anchor)
+                anchor->updateVerticalAnchors();
+        }
+    }
+    emit baselineOffsetChanged(offset);
+}
+
+void QQuickItem::update()
+{
+    Q_D(QQuickItem);
+    Q_ASSERT(flags() & ItemHasContents);
+    d->dirty(QQuickItemPrivate::Content);
+}
+
+void QQuickItem::polish()
+{
+    Q_D(QQuickItem);
+    if (!d->polishScheduled) {
+        d->polishScheduled = true;
+        if (d->canvas) {
+            QQuickCanvasPrivate *p = QQuickCanvasPrivate::get(d->canvas);
+            bool maybeupdate = p->itemsToPolish.isEmpty();
+            p->itemsToPolish.insert(this);
+            if (maybeupdate) d->canvas->maybeUpdate();
+        }
+    }
+}
+
+void QQuickItem::mapFromItem(QDeclarativeV8Function *args) const
+{
+    if (args->Length() != 0) {
+        v8::Local<v8::Value> item = (*args)[0];
+        QV8Engine *engine = args->engine();
+
+        QQuickItem *itemObj = 0;
+        if (!item->IsNull())
+            itemObj = qobject_cast<QQuickItem*>(engine->toQObject(item));
+
+        if (!itemObj && !item->IsNull()) {
+            qmlInfo(this) << "mapFromItem() given argument \"" << engine->toString(item->ToString())
+                          << "\" which is neither null nor an Item";
+            return;
+        }
+
+        v8::Local<v8::Object> rv = v8::Object::New();
+        args->returnValue(rv);
+
+        qreal x = (args->Length() > 1)?(*args)[1]->NumberValue():0;
+        qreal y = (args->Length() > 2)?(*args)[2]->NumberValue():0;
+
+        QPointF p = mapFromItem(itemObj, QPointF(x, y));
+
+        rv->Set(v8::String::New("x"), v8::Number::New(p.x()));
+        rv->Set(v8::String::New("y"), v8::Number::New(p.y()));
+    }
+}
+
+QTransform QQuickItem::itemTransform(QQuickItem *other, bool *ok) const
+{
+    Q_D(const QQuickItem);
+
+    // XXX todo - we need to be able to handle common parents better and detect
+    // invalid cases
+    if (ok) *ok = true;
+
+    QTransform t = d->itemToCanvasTransform();
+    if (other) t *= QQuickItemPrivate::get(other)->canvasToItemTransform();
+
+    return t;
+}
+
+void QQuickItem::mapToItem(QDeclarativeV8Function *args) const
+{
+    if (args->Length() != 0) {
+        v8::Local<v8::Value> item = (*args)[0];
+        QV8Engine *engine = args->engine();
+
+        QQuickItem *itemObj = 0;
+        if (!item->IsNull())
+            itemObj = qobject_cast<QQuickItem*>(engine->toQObject(item));
+
+        if (!itemObj && !item->IsNull()) {
+            qmlInfo(this) << "mapToItem() given argument \"" << engine->toString(item->ToString())
+                          << "\" which is neither null nor an Item";
+            return;
+        }
+
+        v8::Local<v8::Object> rv = v8::Object::New();
+        args->returnValue(rv);
+
+        qreal x = (args->Length() > 1)?(*args)[1]->NumberValue():0;
+        qreal y = (args->Length() > 2)?(*args)[2]->NumberValue():0;
+
+        QPointF p = mapToItem(itemObj, QPointF(x, y));
+
+        rv->Set(v8::String::New("x"), v8::Number::New(p.x()));
+        rv->Set(v8::String::New("y"), v8::Number::New(p.y()));
+    }
+}
+
+void QQuickItem::forceActiveFocus()
+{
+    setFocus(true);
+    QQuickItem *parent = parentItem();
+    while (parent) {
+        if (parent->flags() & QQuickItem::ItemIsFocusScope) {
+            parent->setFocus(true);
+        }
+        parent = parent->parentItem();
+    }
+}
+
+QQuickItem *QQuickItem::childAt(qreal x, qreal y) const
+{
+    // XXX todo - should this include transform etc.?
+    const QList<QQuickItem *> children = childItems();
+    for (int i = children.count()-1; i >= 0; --i) {
+        QQuickItem *child = children.at(i);
+        if (child->isVisible() && child->x() <= x
+                && child->x() + child->width() >= x
+                && child->y() <= y
+                && child->y() + child->height() >= y)
+            return child;
+    }
+    return 0;
+}
+
+QDeclarativeListProperty<QObject> QQuickItemPrivate::resources()
+{
+    return QDeclarativeListProperty<QObject>(q_func(), 0, QQuickItemPrivate::resources_append,
+                                             QQuickItemPrivate::resources_count,
+                                             QQuickItemPrivate::resources_at,
+                                             QQuickItemPrivate::resources_clear);
+}
+
+QDeclarativeListProperty<QQuickItem> QQuickItemPrivate::children()
+{
+    return QDeclarativeListProperty<QQuickItem>(q_func(), 0, QQuickItemPrivate::children_append,
+                                             QQuickItemPrivate::children_count,
+                                             QQuickItemPrivate::children_at,
+                                             QQuickItemPrivate::children_clear);
+
+}
+
+QDeclarativeListProperty<QDeclarativeState> QQuickItemPrivate::states()
+{
+    return _states()->statesProperty();
+}
+
+QDeclarativeListProperty<QDeclarativeTransition> QQuickItemPrivate::transitions()
+{
+    return _states()->transitionsProperty();
+}
+
+QString QQuickItemPrivate::state() const
+{
+    if (!_stateGroup)
+        return QString();
+    else
+        return _stateGroup->state();
+}
+
+void QQuickItemPrivate::setState(const QString &state)
+{
+    _states()->setState(state);
+}
+
+QString QQuickItem::state() const
+{
+    Q_D(const QQuickItem);
+    return d->state();
+}
+
+void QQuickItem::setState(const QString &state)
+{
+    Q_D(QQuickItem);
+    d->setState(state);
+}
+
+QDeclarativeListProperty<QQuickTransform> QQuickItem::transform()
+{
+    return QDeclarativeListProperty<QQuickTransform>(this, 0, QQuickItemPrivate::transform_append,
+                                                     QQuickItemPrivate::transform_count,
+                                                     QQuickItemPrivate::transform_at,
+                                                     QQuickItemPrivate::transform_clear);
+}
+
+void QQuickItem::classBegin()
+{
+    Q_D(QQuickItem);
+    d->componentComplete = false;
+    if (d->_stateGroup)
+        d->_stateGroup->classBegin();
+    if (d->_anchors)
+        d->_anchors->classBegin();
+}
+
+void QQuickItem::componentComplete()
+{
+    Q_D(QQuickItem);
+    d->componentComplete = true;
+    if (d->_stateGroup)
+        d->_stateGroup->componentComplete();
+    if (d->_anchors) {
+        d->_anchors->componentComplete();
+        QQuickAnchorsPrivate::get(d->_anchors)->updateOnComplete();
+    }
+    if (d->keyHandler)
+        d->keyHandler->componentComplete();
+    if (d->_contents)
+        d->_contents->complete();
+}
+
+QDeclarativeStateGroup *QQuickItemPrivate::_states()
+{
+    Q_Q(QQuickItem);
+    if (!_stateGroup) {
+        _stateGroup = new QDeclarativeStateGroup;
+        if (!componentComplete)
+            _stateGroup->classBegin();
+        FAST_CONNECT(_stateGroup, SIGNAL(stateChanged(QString)),
+                     q, SIGNAL(stateChanged(QString)))
+    }
+
+    return _stateGroup;
+}
+
+QQuickItemPrivate::AnchorLines::AnchorLines(QQuickItem *q)
+{
+    left.item = q;
+    left.anchorLine = QQuickAnchorLine::Left;
+    right.item = q;
+    right.anchorLine = QQuickAnchorLine::Right;
+    hCenter.item = q;
+    hCenter.anchorLine = QQuickAnchorLine::HCenter;
+    top.item = q;
+    top.anchorLine = QQuickAnchorLine::Top;
+    bottom.item = q;
+    bottom.anchorLine = QQuickAnchorLine::Bottom;
+    vCenter.item = q;
+    vCenter.anchorLine = QQuickAnchorLine::VCenter;
+    baseline.item = q;
+    baseline.anchorLine = QQuickAnchorLine::Baseline;
+}
+
+QPointF QQuickItemPrivate::computeTransformOrigin() const
+{
+    switch (origin) {
+    default:
+    case QQuickItem::TopLeft:
+        return QPointF(0, 0);
+    case QQuickItem::Top:
+        return QPointF(width / 2., 0);
+    case QQuickItem::TopRight:
+        return QPointF(width, 0);
+    case QQuickItem::Left:
+        return QPointF(0, height / 2.);
+    case QQuickItem::Center:
+        return QPointF(width / 2., height / 2.);
+    case QQuickItem::Right:
+        return QPointF(width, height / 2.);
+    case QQuickItem::BottomLeft:
+        return QPointF(0, height);
+    case QQuickItem::Bottom:
+        return QPointF(width / 2., height);
+    case QQuickItem::BottomRight:
+        return QPointF(width, height);
+    }
+}
+
+void QQuickItemPrivate::transformChanged()
+{
+}
+
+void QQuickItemPrivate::deliverKeyEvent(QKeyEvent *e)
+{
+    Q_Q(QQuickItem);
+
+    Q_ASSERT(e->isAccepted());
+    if (keyHandler) {
+        if (e->type() == QEvent::KeyPress)
+            keyHandler->keyPressed(e, false);
+        else
+            keyHandler->keyReleased(e, false);
+
+        if (e->isAccepted())
+            return;
+        else
+            e->accept();
+    }
+
+    if (e->type() == QEvent::KeyPress)
+        q->keyPressEvent(e);
+    else
+        q->keyReleaseEvent(e);
+
+    if (e->isAccepted())
+        return;
+
+    if (keyHandler) {
+        e->accept();
+
+        if (e->type() == QEvent::KeyPress)
+            keyHandler->keyPressed(e, true);
+        else
+            keyHandler->keyReleased(e, true);
+    }
+}
+
+void QQuickItemPrivate::deliverInputMethodEvent(QInputMethodEvent *e)
+{
+    Q_Q(QQuickItem);
+
+    Q_ASSERT(e->isAccepted());
+    if (keyHandler) {
+        keyHandler->inputMethodEvent(e, false);
+
+        if (e->isAccepted())
+            return;
+        else
+            e->accept();
+    }
+
+    q->inputMethodEvent(e);
+
+    if (e->isAccepted())
+        return;
+
+    if (keyHandler) {
+        e->accept();
+
+        keyHandler->inputMethodEvent(e, true);
+    }
+}
+
+void QQuickItemPrivate::deliverFocusEvent(QFocusEvent *e)
+{
+    Q_Q(QQuickItem);
+
+    if (e->type() == QEvent::FocusIn) {
+        q->focusInEvent(e);
+    } else {
+        q->focusOutEvent(e);
+    }
+}
+
+void QQuickItemPrivate::deliverMouseEvent(QMouseEvent *e)
+{
+    Q_Q(QQuickItem);
+
+    Q_ASSERT(e->isAccepted());
+
+    switch (e->type()) {
+    default:
+        Q_ASSERT(!"Unknown event type");
+    case QEvent::MouseMove:
+        q->mouseMoveEvent(e);
+        break;
+    case QEvent::MouseButtonPress:
+        q->mousePressEvent(e);
+        break;
+    case QEvent::MouseButtonRelease:
+        q->mouseReleaseEvent(e);
+        break;
+    case QEvent::MouseButtonDblClick:
+        q->mouseDoubleClickEvent(e);
+        break;
+    }
+}
+
+void QQuickItemPrivate::deliverWheelEvent(QWheelEvent *e)
+{
+    Q_Q(QQuickItem);
+    q->wheelEvent(e);
+}
+
+void QQuickItemPrivate::deliverTouchEvent(QTouchEvent *e)
+{
+    Q_Q(QQuickItem);
+    q->touchEvent(e);
+}
+
+void QQuickItemPrivate::deliverHoverEvent(QHoverEvent *e)
+{
+    Q_Q(QQuickItem);
+    switch (e->type()) {
+    default:
+        Q_ASSERT(!"Unknown event type");
+    case QEvent::HoverEnter:
+        q->hoverEnterEvent(e);
+        break;
+    case QEvent::HoverLeave:
+        q->hoverLeaveEvent(e);
+        break;
+    case QEvent::HoverMove:
+        q->hoverMoveEvent(e);
+        break;
+    }
+}
+
+void QQuickItemPrivate::deliverDragEvent(QEvent *e)
+{
+    Q_Q(QQuickItem);
+    switch (e->type()) {
+    default:
+        Q_ASSERT(!"Unknown event type");
+    case QEvent::DragEnter:
+        q->dragEnterEvent(static_cast<QDragEnterEvent *>(e));
+        break;
+    case QEvent::DragLeave:
+        q->dragLeaveEvent(static_cast<QDragLeaveEvent *>(e));
+        break;
+    case QEvent::DragMove:
+        q->dragMoveEvent(static_cast<QDragMoveEvent *>(e));
+        break;
+    case QEvent::Drop:
+        q->dropEvent(static_cast<QDropEvent *>(e));
+        break;
+    }
+}
+
+void QQuickItem::itemChange(ItemChange change, const ItemChangeData &value)
+{
+    Q_UNUSED(change);
+    Q_UNUSED(value);
+}
+
+/*! \internal */
+// XXX todo - do we want/need this anymore?
+// Note that it's now used for varying clip rect
+QRectF QQuickItem::boundingRect() const
+{
+    Q_D(const QQuickItem);
+    return QRectF(0, 0, d->width, d->height);
+}
+
+QQuickItem::TransformOrigin QQuickItem::transformOrigin() const
+{
+    Q_D(const QQuickItem);
+    return d->origin;
+}
+
+void QQuickItem::setTransformOrigin(TransformOrigin origin)
+{
+    Q_D(QQuickItem);
+    if (origin == d->origin)
+        return;
+
+    d->origin = origin;
+    d->dirty(QQuickItemPrivate::TransformOrigin);
+
+    emit transformOriginChanged(d->origin);
+}
+
+QPointF QQuickItem::transformOriginPoint() const
+{
+    Q_D(const QQuickItem);
+    if (!d->transformOriginPoint.isNull())
+        return d->transformOriginPoint;
+    return d->computeTransformOrigin();
+}
+
+void QQuickItem::setTransformOriginPoint(const QPointF &point)
+{
+    Q_D(QQuickItem);
+    if (d->transformOriginPoint == point)
+        return;
+
+    d->transformOriginPoint = point;
+    d->dirty(QQuickItemPrivate::TransformOrigin);
+}
+
+qreal QQuickItem::z() const
+{
+    Q_D(const QQuickItem);
+    return d->z;
+}
+
+void QQuickItem::setZ(qreal v)
+{
+    Q_D(QQuickItem);
+    if (d->z == v)
+        return;
+
+    d->z = v;
+
+    d->dirty(QQuickItemPrivate::ZValue);
+    if (d->parentItem) {
+        QQuickItemPrivate::get(d->parentItem)->dirty(QQuickItemPrivate::ChildrenStackingChanged);
+        QQuickItemPrivate::get(d->parentItem)->markSortedChildrenDirty(this);
+    }
+
+    emit zChanged();
+}
+
+
+/*!
+  \qmlproperty real QtQuick2::Item::rotation
+  This property holds the rotation of the item in degrees clockwise.
+
+  This specifies how many degrees to rotate the item around its transformOrigin.
+  The default rotation is 0 degrees (i.e. not rotated at all).
+
+  \table
+  \row
+  \o \image declarative-rotation.png
+  \o
+  \qml
+  Rectangle {
+      color: "blue"
+      width: 100; height: 100
+      Rectangle {
+          color: "red"
+          x: 25; y: 25; width: 50; height: 50
+          rotation: 30
+      }
+  }
+  \endqml
+  \endtable
+
+  \sa transform, Rotation
+*/
+
+/*!
+  \qmlproperty real QtQuick2::Item::scale
+  This property holds the scale of the item.
+
+  A scale of less than 1 means the item will be displayed smaller than
+  normal, and a scale of greater than 1 means the item will be
+  displayed larger than normal.  A negative scale means the item will
+  be mirrored.
+
+  By default, items are displayed at a scale of 1 (i.e. at their
+  normal size).
+
+  Scaling is from the item's transformOrigin.
+
+  \table
+  \row
+  \o \image declarative-scale.png
+  \o
+  \qml
+  Rectangle {
+      color: "blue"
+      width: 100; height: 100
+      Rectangle {
+          color: "green"
+          width: 25; height: 25
+      }
+      Rectangle {
+          color: "red"
+          x: 25; y: 25; width: 50; height: 50
+          scale: 1.4
+      }
+  }
+  \endqml
+  \endtable
+
+  \sa transform, Scale
+*/
+
+/*!
+  \qmlproperty real QtQuick2::Item::opacity
+
+  This property holds the opacity of the item.  Opacity is specified as a
+  number between 0 (fully transparent) and 1 (fully opaque).  The default is 1.
+
+  When this property is set, the specified opacity is also applied
+  individually to child items.  In almost all cases this is what you want,
+  but in some cases it may produce undesired results. For example in the
+  second set of rectangles below, the red rectangle has specified an opacity
+  of 0.5, which affects the opacity of its blue child rectangle even though
+  the child has not specified an opacity.
+
+  \table
+  \row
+  \o \image declarative-item_opacity1.png
+  \o
+  \qml
+    Item {
+        Rectangle {
+            color: "red"
+            width: 100; height: 100
+            Rectangle {
+                color: "blue"
+                x: 50; y: 50; width: 100; height: 100
+            }
+        }
+    }
+  \endqml
+  \row
+  \o \image declarative-item_opacity2.png
+  \o
+  \qml
+    Item {
+        Rectangle {
+            opacity: 0.5
+            color: "red"
+            width: 100; height: 100
+            Rectangle {
+                color: "blue"
+                x: 50; y: 50; width: 100; height: 100
+            }
+        }
+    }
+  \endqml
+  \endtable
+
+  If an item's opacity is set to 0, the item will no longer receive mouse
+  events, but will continue to receive key events and will retain the keyboard
+  \l focus if it has been set. (In contrast, setting the \l visible property
+  to \c false stops both mouse and keyboard events, and also removes focus
+  from the item.)
+*/
+
+/*!
+  Returns a value indicating whether mouse input should
+  remain with this item exclusively.
+
+  \sa setKeepMouseGrab()
+ */
+
+qreal QQuickItem::rotation() const
+{
+    Q_D(const QQuickItem);
+    return d->rotation;
+}
+
+void QQuickItem::setRotation(qreal r)
+{
+    Q_D(QQuickItem);
+    if (d->rotation == r)
+        return;
+
+    d->rotation = r;
+
+    d->dirty(QQuickItemPrivate::BasicTransform);
+
+    d->itemChange(ItemRotationHasChanged, r);
+
+    emit rotationChanged();
+}
+
+qreal QQuickItem::scale() const
+{
+    Q_D(const QQuickItem);
+    return d->scale;
+}
+
+void QQuickItem::setScale(qreal s)
+{
+    Q_D(QQuickItem);
+    if (d->scale == s)
+        return;
+
+    d->scale = s;
+
+    d->dirty(QQuickItemPrivate::BasicTransform);
+
+    emit scaleChanged();
+}
+
+qreal QQuickItem::opacity() const
+{
+    Q_D(const QQuickItem);
+    return d->opacity;
+}
+
+void QQuickItem::setOpacity(qreal o)
+{
+    Q_D(QQuickItem);
+    if (d->opacity == o)
+        return;
+
+    d->opacity = o;
+
+    d->dirty(QQuickItemPrivate::OpacityValue);
+
+    d->itemChange(ItemOpacityHasChanged, o);
+
+    emit opacityChanged();
+}
+
+bool QQuickItem::isVisible() const
+{
+    Q_D(const QQuickItem);
+    return d->effectiveVisible;
+}
+
+void QQuickItem::setVisible(bool v)
+{
+    Q_D(QQuickItem);
+    if (v == d->explicitVisible)
+        return;
+
+    d->explicitVisible = v;
+
+    d->setEffectiveVisibleRecur(d->calcEffectiveVisible());
+}
+
+bool QQuickItem::isEnabled() const
+{
+    Q_D(const QQuickItem);
+    return d->effectiveEnable;
+}
+
+void QQuickItem::setEnabled(bool e)
+{
+    Q_D(QQuickItem);
+    if (e == d->explicitEnable)
+        return;
+
+    d->explicitEnable = e;
+
+    d->setEffectiveEnableRecur(d->calcEffectiveEnable());
+}
+
+bool QQuickItemPrivate::calcEffectiveVisible() const
+{
+    // XXX todo - Should the effective visible of an element with no parent just be the current
+    // effective visible?  This would prevent pointless re-processing in the case of an element
+    // moving to/from a no-parent situation, but it is different from what graphics view does.
+    return explicitVisible && (!parentItem || QQuickItemPrivate::get(parentItem)->effectiveVisible);
+}
+
+void QQuickItemPrivate::setEffectiveVisibleRecur(bool newEffectiveVisible)
+{
+    Q_Q(QQuickItem);
+
+    if (newEffectiveVisible && !explicitVisible) {
+        // This item locally overrides visibility
+        return;
+    }
+
+    if (newEffectiveVisible == effectiveVisible) {
+        // No change necessary
+        return;
+    }
+
+    effectiveVisible = newEffectiveVisible;
+    dirty(Visible);
+    if (parentItem) QQuickItemPrivate::get(parentItem)->dirty(ChildrenStackingChanged);
+
+    if (canvas) {
+        QQuickCanvasPrivate *canvasPriv = QQuickCanvasPrivate::get(canvas);
+        if (canvasPriv->mouseGrabberItem == q)
+            q->ungrabMouse();
+    }
+
+    for (int ii = 0; ii < childItems.count(); ++ii)
+        QQuickItemPrivate::get(childItems.at(ii))->setEffectiveVisibleRecur(newEffectiveVisible);
+
+    for (int ii = 0; ii < changeListeners.count(); ++ii) {
+        const QQuickItemPrivate::ChangeListener &change = changeListeners.at(ii);
+        if (change.types & QQuickItemPrivate::Visibility)
+            change.listener->itemVisibilityChanged(q);
+    }
+
+    emit q->visibleChanged();
+}
+
+bool QQuickItemPrivate::calcEffectiveEnable() const
+{
+    // XXX todo - Should the effective enable of an element with no parent just be the current
+    // effective enable?  This would prevent pointless re-processing in the case of an element
+    // moving to/from a no-parent situation, but it is different from what graphics view does.
+    return explicitEnable && (!parentItem || QQuickItemPrivate::get(parentItem)->effectiveEnable);
+}
+
+void QQuickItemPrivate::setEffectiveEnableRecur(bool newEffectiveEnable)
+{
+    Q_Q(QQuickItem);
+
+    // XXX todo - need to fixup focus
+
+    if (newEffectiveEnable && !explicitEnable) {
+        // This item locally overrides enable
+        return;
+    }
+
+    if (newEffectiveEnable == effectiveEnable) {
+        // No change necessary
+        return;
+    }
+
+    effectiveEnable = newEffectiveEnable;
+
+    if (canvas) {
+        QQuickCanvasPrivate *canvasPriv = QQuickCanvasPrivate::get(canvas);
+        if (canvasPriv->mouseGrabberItem == q)
+            q->ungrabMouse();
+    }
+
+    for (int ii = 0; ii < childItems.count(); ++ii)
+        QQuickItemPrivate::get(childItems.at(ii))->setEffectiveEnableRecur(newEffectiveEnable);
+
+    emit q->enabledChanged();
+}
+
+QString QQuickItemPrivate::dirtyToString() const
+{
+#define DIRTY_TO_STRING(value) if (dirtyAttributes & value) { \
+    if (!rv.isEmpty()) \
+        rv.append(QLatin1String("|")); \
+    rv.append(QLatin1String(#value)); \
+}
+
+//    QString rv = QLatin1String("0x") + QString::number(dirtyAttributes, 16);
+    QString rv;
+
+    DIRTY_TO_STRING(TransformOrigin);
+    DIRTY_TO_STRING(Transform);
+    DIRTY_TO_STRING(BasicTransform);
+    DIRTY_TO_STRING(Position);
+    DIRTY_TO_STRING(Size);
+    DIRTY_TO_STRING(ZValue);
+    DIRTY_TO_STRING(Content);
+    DIRTY_TO_STRING(Smooth);
+    DIRTY_TO_STRING(OpacityValue);
+    DIRTY_TO_STRING(ChildrenChanged);
+    DIRTY_TO_STRING(ChildrenStackingChanged);
+    DIRTY_TO_STRING(ParentChanged);
+    DIRTY_TO_STRING(Clip);
+    DIRTY_TO_STRING(Canvas);
+    DIRTY_TO_STRING(EffectReference);
+    DIRTY_TO_STRING(Visible);
+    DIRTY_TO_STRING(HideReference);
+
+    return rv;
+}
+
+void QQuickItemPrivate::dirty(DirtyType type)
+{
+    Q_Q(QQuickItem);
+    if (type & (TransformOrigin | Transform | BasicTransform | Position | Size))
+        transformChanged();
+
+    if (!(dirtyAttributes & type) || (canvas && !prevDirtyItem)) {
+        dirtyAttributes |= type;
+        if (canvas) {
+            addToDirtyList();
+            QQuickCanvasPrivate::get(canvas)->dirtyItem(q);
+        }
+    }
+}
+
+void QQuickItemPrivate::addToDirtyList()
+{
+    Q_Q(QQuickItem);
+
+    Q_ASSERT(canvas);
+    if (!prevDirtyItem) {
+        Q_ASSERT(!nextDirtyItem);
+
+        QQuickCanvasPrivate *p = QQuickCanvasPrivate::get(canvas);
+        nextDirtyItem = p->dirtyItemList;
+        if (nextDirtyItem) QQuickItemPrivate::get(nextDirtyItem)->prevDirtyItem = &nextDirtyItem;
+        prevDirtyItem = &p->dirtyItemList;
+        p->dirtyItemList = q;
+        p->dirtyItem(q);
+    }
+    Q_ASSERT(prevDirtyItem);
+}
+
+void QQuickItemPrivate::removeFromDirtyList()
+{
+    if (prevDirtyItem) {
+        if (nextDirtyItem) QQuickItemPrivate::get(nextDirtyItem)->prevDirtyItem = prevDirtyItem;
+        *prevDirtyItem = nextDirtyItem;
+        prevDirtyItem = 0;
+        nextDirtyItem = 0;
+    }
+    Q_ASSERT(!prevDirtyItem);
+    Q_ASSERT(!nextDirtyItem);
+}
+
+void QQuickItemPrivate::refFromEffectItem(bool hide)
+{
+    ++effectRefCount;
+    if (1 == effectRefCount) {
+        dirty(EffectReference);
+        if (parentItem) QQuickItemPrivate::get(parentItem)->dirty(ChildrenStackingChanged);
+    }
+    if (hide) {
+        if (++hideRefCount == 1)
+            dirty(HideReference);
+    }
+}
+
+void QQuickItemPrivate::derefFromEffectItem(bool unhide)
+{
+    Q_ASSERT(effectRefCount);
+    --effectRefCount;
+    if (0 == effectRefCount) {
+        dirty(EffectReference);
+        if (parentItem) QQuickItemPrivate::get(parentItem)->dirty(ChildrenStackingChanged);
+    }
+    if (unhide) {
+        if (--hideRefCount == 0)
+            dirty(HideReference);
+    }
+}
+
+void QQuickItemPrivate::itemChange(QQuickItem::ItemChange change, const QQuickItem::ItemChangeData &data)
+{
+    Q_Q(QQuickItem);
+    switch (change) {
+    case QQuickItem::ItemChildAddedChange:
+        q->itemChange(change, data);
+        for (int ii = 0; ii < changeListeners.count(); ++ii) {
+            const QQuickItemPrivate::ChangeListener &change = changeListeners.at(ii);
+            if (change.types & QQuickItemPrivate::Children) {
+                change.listener->itemChildAdded(q, data.item);
+            }
+        }
+        break;
+    case QQuickItem::ItemChildRemovedChange:
+        q->itemChange(change, data);
+        for (int ii = 0; ii < changeListeners.count(); ++ii) {
+            const QQuickItemPrivate::ChangeListener &change = changeListeners.at(ii);
+            if (change.types & QQuickItemPrivate::Children) {
+                change.listener->itemChildRemoved(q, data.item);
+            }
+        }
+        break;
+    case QQuickItem::ItemSceneChange:
+        q->itemChange(change, data);
+        break;
+    case QQuickItem::ItemVisibleHasChanged:
+        q->itemChange(change, data);
+        for (int ii = 0; ii < changeListeners.count(); ++ii) {
+            const QQuickItemPrivate::ChangeListener &change = changeListeners.at(ii);
+            if (change.types & QQuickItemPrivate::Visibility) {
+                change.listener->itemVisibilityChanged(q);
+            }
+        }
+        break;
+    case QQuickItem::ItemParentHasChanged:
+        q->itemChange(change, data);
+        for (int ii = 0; ii < changeListeners.count(); ++ii) {
+            const QQuickItemPrivate::ChangeListener &change = changeListeners.at(ii);
+            if (change.types & QQuickItemPrivate::Parent) {
+                change.listener->itemParentChanged(q, data.item);
+            }
+        }
+        break;
+    case QQuickItem::ItemOpacityHasChanged:
+        q->itemChange(change, data);
+        for (int ii = 0; ii < changeListeners.count(); ++ii) {
+            const QQuickItemPrivate::ChangeListener &change = changeListeners.at(ii);
+            if (change.types & QQuickItemPrivate::Opacity) {
+                change.listener->itemOpacityChanged(q);
+            }
+        }
+        break;
+    case QQuickItem::ItemActiveFocusHasChanged:
+        q->itemChange(change, data);
+        break;
+    case QQuickItem::ItemRotationHasChanged:
+        q->itemChange(change, data);
+        for (int ii = 0; ii < changeListeners.count(); ++ii) {
+            const QQuickItemPrivate::ChangeListener &change = changeListeners.at(ii);
+            if (change.types & QQuickItemPrivate::Rotation) {
+                change.listener->itemRotationChanged(q);
+            }
+        }
+        break;
+    }
+}
+
+/*!
+    \property QQuickItem::smooth
+    \brief whether the item is smoothly transformed.
+
+    This property is provided purely for the purpose of optimization. Turning
+    smooth transforms off is faster, but looks worse; turning smooth
+    transformations on is slower, but looks better.
+
+    By default smooth transformations are off.
+*/
+
+/*!
+    Returns true if the item should be drawn with antialiasing and
+    smooth pixmap filtering, false otherwise.
+
+    The default is false.
+
+    \sa setSmooth()
+*/
+bool QQuickItem::smooth() const
+{
+    Q_D(const QQuickItem);
+    return d->smooth;
+}
+
+/*!
+    Sets whether the item should be drawn with antialiasing and
+    smooth pixmap filtering to \a smooth.
+
+    \sa smooth()
+*/
+void QQuickItem::setSmooth(bool smooth)
+{
+    Q_D(QQuickItem);
+    if (d->smooth == smooth)
+        return;
+
+    d->smooth = smooth;
+    d->dirty(QQuickItemPrivate::Smooth);
+
+    emit smoothChanged(smooth);
+}
+
+QQuickItem::Flags QQuickItem::flags() const
+{
+    Q_D(const QQuickItem);
+    return (QQuickItem::Flags)d->flags;
+}
+
+void QQuickItem::setFlag(Flag flag, bool enabled)
+{
+    Q_D(QQuickItem);
+    if (enabled)
+        setFlags((Flags)(d->flags | (quint32)flag));
+    else
+        setFlags((Flags)(d->flags & ~(quint32)flag));
+}
+
+void QQuickItem::setFlags(Flags flags)
+{
+    Q_D(QQuickItem);
+
+    if ((flags & ItemIsFocusScope) != (d->flags & ItemIsFocusScope)) {
+        if (flags & ItemIsFocusScope && !d->childItems.isEmpty() && d->canvas) {
+            qWarning("QQuickItem: Cannot set FocusScope once item has children and is in a canvas.");
+            flags &= ~ItemIsFocusScope;
+        } else if (d->flags & ItemIsFocusScope) {
+            qWarning("QQuickItem: Cannot unset FocusScope flag.");
+            flags |= ItemIsFocusScope;
+        }
+    }
+
+    if ((flags & ItemClipsChildrenToShape ) != (d->flags & ItemClipsChildrenToShape))
+        d->dirty(QQuickItemPrivate::Clip);
+
+    d->flags = flags;
+}
+
+qreal QQuickItem::x() const
+{
+    Q_D(const QQuickItem);
+    return d->x;
+}
+
+qreal QQuickItem::y() const
+{
+    Q_D(const QQuickItem);
+    return d->y;
+}
+
+QPointF QQuickItem::pos() const
+{
+    Q_D(const QQuickItem);
+    return QPointF(d->x, d->y);
+}
+
+void QQuickItem::setX(qreal v)
+{
+    Q_D(QQuickItem);
+    if (d->x == v)
+        return;
+
+    qreal oldx = d->x;
+    d->x = v;
+
+    d->dirty(QQuickItemPrivate::Position);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(oldx, y(), width(), height()));
+}
+
+void QQuickItem::setY(qreal v)
+{
+    Q_D(QQuickItem);
+    if (d->y == v)
+        return;
+
+    qreal oldy = d->y;
+    d->y = v;
+
+    d->dirty(QQuickItemPrivate::Position);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(x(), oldy, width(), height()));
+}
+
+void QQuickItem::setPos(const QPointF &pos)
+{
+    Q_D(QQuickItem);
+    if (QPointF(d->x, d->y) == pos)
+        return;
+
+    qreal oldx = d->x;
+    qreal oldy = d->y;
+
+    d->x = pos.x();
+    d->y = pos.y();
+
+    d->dirty(QQuickItemPrivate::Position);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(oldx, oldy, width(), height()));
+}
+
+qreal QQuickItem::width() const
+{
+    Q_D(const QQuickItem);
+    return d->width;
+}
+
+void QQuickItem::setWidth(qreal w)
+{
+    Q_D(QQuickItem);
+    if (qIsNaN(w))
+        return;
+
+    d->widthValid = true;
+    if (d->width == w)
+        return;
+
+    qreal oldWidth = d->width;
+    d->width = w;
+
+    d->dirty(QQuickItemPrivate::Size);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(x(), y(), oldWidth, height()));
+}
+
+void QQuickItem::resetWidth()
+{
+    Q_D(QQuickItem);
+    d->widthValid = false;
+    setImplicitWidth(implicitWidth());
+}
+
+void QQuickItemPrivate::implicitWidthChanged()
+{
+    Q_Q(QQuickItem);
+    emit q->implicitWidthChanged();
+}
+
+qreal QQuickItemPrivate::getImplicitWidth() const
+{
+    return implicitWidth;
+}
+/*!
+    Returns the width of the item that is implied by other properties that determine the content.
+*/
+qreal QQuickItem::implicitWidth() const
+{
+    Q_D(const QQuickItem);
+    return d->getImplicitWidth();
+}
+
+/*!
+    \qmlproperty real QtQuick2::Item::implicitWidth
+    \qmlproperty real QtQuick2::Item::implicitHeight
+
+    Defines the natural width or height of the Item if no \l width or \l height is specified.
+
+    The default implicit size for most items is 0x0, however some elements have an inherent
+    implicit size which cannot be overridden, e.g. Image, Text.
+
+    Setting the implicit size is useful for defining components that have a preferred size
+    based on their content, for example:
+
+    \qml
+    // Label.qml
+    import QtQuick 1.1
+
+    Item {
+        property alias icon: image.source
+        property alias label: text.text
+        implicitWidth: text.implicitWidth + image.implicitWidth
+        implicitHeight: Math.max(text.implicitHeight, image.implicitHeight)
+        Image { id: image }
+        Text {
+            id: text
+            wrapMode: Text.Wrap
+            anchors.left: image.right; anchors.right: parent.right
+            anchors.verticalCenter: parent.verticalCenter
+        }
+    }
+    \endqml
+
+    \bold Note: using implicitWidth of Text or TextEdit and setting the width explicitly
+    incurs a performance penalty as the text must be laid out twice.
+*/
+
+/*!
+    Sets the implied width of the item to \a w.
+    This is the width implied by other properties that determine the content.
+*/
+void QQuickItem::setImplicitWidth(qreal w)
+{
+    Q_D(QQuickItem);
+    bool changed = w != d->implicitWidth;
+    d->implicitWidth = w;
+    if (d->width == w || widthValid()) {
+        if (changed)
+            d->implicitWidthChanged();
+        return;
+    }
+
+    qreal oldWidth = d->width;
+    d->width = w;
+
+    d->dirty(QQuickItemPrivate::Size);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(x(), y(), oldWidth, height()));
+
+    if (changed)
+        d->implicitWidthChanged();
+}
+
+/*!
+    Returns whether the width property has been set explicitly.
+*/
+bool QQuickItem::widthValid() const
+{
+    Q_D(const QQuickItem);
+    return d->widthValid;
+}
+
+qreal QQuickItem::height() const
+{
+    Q_D(const QQuickItem);
+    return d->height;
+}
+
+void QQuickItem::setHeight(qreal h)
+{
+    Q_D(QQuickItem);
+    if (qIsNaN(h))
+        return;
+
+    d->heightValid = true;
+    if (d->height == h)
+        return;
+
+    qreal oldHeight = d->height;
+    d->height = h;
+
+    d->dirty(QQuickItemPrivate::Size);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(x(), y(), width(), oldHeight));
+}
+
+void QQuickItem::resetHeight()
+{
+    Q_D(QQuickItem);
+    d->heightValid = false;
+    setImplicitHeight(implicitHeight());
+}
+
+void QQuickItemPrivate::implicitHeightChanged()
+{
+    Q_Q(QQuickItem);
+    emit q->implicitHeightChanged();
+}
+
+qreal QQuickItemPrivate::getImplicitHeight() const
+{
+    return implicitHeight;
+}
+
+/*!
+    Returns the height of the item that is implied by other properties that determine the content.
+*/
+qreal QQuickItem::implicitHeight() const
+{
+    Q_D(const QQuickItem);
+    return d->getImplicitHeight();
+}
+
+
+/*!
+    Sets the implied height of the item to \a h.
+    This is the height implied by other properties that determine the content.
+*/
+void QQuickItem::setImplicitHeight(qreal h)
+{
+    Q_D(QQuickItem);
+    bool changed = h != d->implicitHeight;
+    d->implicitHeight = h;
+    if (d->height == h || heightValid()) {
+        if (changed)
+            d->implicitHeightChanged();
+        return;
+    }
+
+    qreal oldHeight = d->height;
+    d->height = h;
+
+    d->dirty(QQuickItemPrivate::Size);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(x(), y(), width(), oldHeight));
+
+    if (changed)
+        d->implicitHeightChanged();
+}
+
+void QQuickItem::setImplicitSize(qreal w, qreal h)
+{
+    Q_D(QQuickItem);
+    bool wChanged = w != d->implicitWidth;
+    bool hChanged = h != d->implicitHeight;
+
+    d->implicitWidth = w;
+    d->implicitHeight = h;
+
+    bool wDone = false;
+    bool hDone = false;
+    if (d->width == w || widthValid()) {
+        if (wChanged)
+            d->implicitWidthChanged();
+        wDone = true;
+    }
+    if (d->height == h || heightValid()) {
+        if (hChanged)
+            d->implicitHeightChanged();
+        hDone = true;
+    }
+    if (wDone && hDone)
+        return;
+
+    qreal oldWidth = d->width;
+    qreal oldHeight = d->height;
+    if (!wDone)
+        d->width = w;
+    if (!hDone)
+        d->height = h;
+
+    d->dirty(QQuickItemPrivate::Size);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(x(), y(), oldWidth, oldHeight));
+
+    if (!wDone && wChanged)
+        d->implicitWidthChanged();
+    if (!hDone && hChanged)
+        d->implicitHeightChanged();
+}
+
+/*!
+    Returns whether the height property has been set explicitly.
+*/
+bool QQuickItem::heightValid() const
+{
+    Q_D(const QQuickItem);
+    return d->heightValid;
+}
+
+void QQuickItem::setSize(const QSizeF &size)
+{
+    Q_D(QQuickItem);
+    d->heightValid = true;
+    d->widthValid = true;
+
+    if (QSizeF(d->width, d->height) == size)
+        return;
+
+    qreal oldHeight = d->height;
+    qreal oldWidth = d->width;
+    d->height = size.height();
+    d->width = size.width();
+
+    d->dirty(QQuickItemPrivate::Size);
+
+    geometryChanged(QRectF(x(), y(), width(), height()),
+                    QRectF(x(), y(), oldWidth, oldHeight));
+}
+
+bool QQuickItem::hasActiveFocus() const
+{
+    Q_D(const QQuickItem);
+    return d->activeFocus;
+}
+
+bool QQuickItem::hasFocus() const
+{
+    Q_D(const QQuickItem);
+    return d->focus;
+}
+
+void QQuickItem::setFocus(bool focus)
+{
+    Q_D(QQuickItem);
+    if (d->focus == focus)
+        return;
+
+    if (d->canvas) {
+        // Need to find our nearest focus scope
+        QQuickItem *scope = parentItem();
+        while (scope && !scope->isFocusScope())
+            scope = scope->parentItem();
+        if (focus)
+            QQuickCanvasPrivate::get(d->canvas)->setFocusInScope(scope, this);
+        else
+            QQuickCanvasPrivate::get(d->canvas)->clearFocusInScope(scope, this);
+    } else {
+        d->focus = focus;
+        emit focusChanged(focus);
+    }
+}
+
+bool QQuickItem::isFocusScope() const
+{
+    return flags() & ItemIsFocusScope;
+}
+
+QQuickItem *QQuickItem::scopedFocusItem() const
+{
+    Q_D(const QQuickItem);
+    if (!isFocusScope())
+        return 0;
+    else
+        return d->subFocusItem;
+}
+
+
+Qt::MouseButtons QQuickItem::acceptedMouseButtons() const
+{
+    Q_D(const QQuickItem);
+    return d->acceptedMouseButtons;
+}
+
+void QQuickItem::setAcceptedMouseButtons(Qt::MouseButtons buttons)
+{
+    Q_D(QQuickItem);
+    d->acceptedMouseButtons = buttons;
+}
+
+bool QQuickItem::filtersChildMouseEvents() const
+{
+    Q_D(const QQuickItem);
+    return d->filtersChildMouseEvents;
+}
+
+void QQuickItem::setFiltersChildMouseEvents(bool filter)
+{
+    Q_D(QQuickItem);
+    d->filtersChildMouseEvents = filter;
+}
+
+bool QQuickItem::isUnderMouse() const
+{
+    Q_D(const QQuickItem);
+    if (!d->canvas)
+        return false;
+
+    QPoint cursorPos = QCursor::pos();
+    if (QRectF(0, 0, width(), height()).contains(mapFromScene(cursorPos))) // ### refactor: d->canvas->mapFromGlobal(cursorPos))))
+        return true;
+    return false;
+}
+
+bool QQuickItem::acceptHoverEvents() const
+{
+    Q_D(const QQuickItem);
+    return d->hoverEnabled;
+}
+
+void QQuickItem::setAcceptHoverEvents(bool enabled)
+{
+    Q_D(QQuickItem);
+    d->hoverEnabled = enabled;
+}
+
+void QQuickItem::grabMouse()
+{
+    Q_D(QQuickItem);
+    if (!d->canvas)
+        return;
+    QQuickCanvasPrivate *canvasPriv = QQuickCanvasPrivate::get(d->canvas);
+    if (canvasPriv->mouseGrabberItem == this)
+        return;
+
+    QQuickItem *oldGrabber = canvasPriv->mouseGrabberItem;
+    canvasPriv->mouseGrabberItem = this;
+    if (oldGrabber)
+        oldGrabber->mouseUngrabEvent();
+}
+
+void QQuickItem::ungrabMouse()
+{
+    Q_D(QQuickItem);
+    if (!d->canvas)
+        return;
+    QQuickCanvasPrivate *canvasPriv = QQuickCanvasPrivate::get(d->canvas);
+    if (canvasPriv->mouseGrabberItem != this) {
+        qWarning("QQuickItem::ungrabMouse(): Item is not the mouse grabber.");
+        return;
+    }
+
+    canvasPriv->mouseGrabberItem = 0;
+    mouseUngrabEvent();
+}
+
+bool QQuickItem::keepMouseGrab() const
+{
+    Q_D(const QQuickItem);
+    return d->keepMouse;
+}
+
+/*!
+  The flag indicating whether the mouse should remain
+  with this item is set to \a keep.
+
+  This is useful for items that wish to grab and keep mouse
+  interaction following a predefined gesture.  For example,
+  an item that is interested in horizontal mouse movement
+  may set keepMouseGrab to true once a threshold has been
+  exceeded.  Once keepMouseGrab has been set to true, filtering
+  items will not react to mouse events.
+
+  If the item does not indicate that it wishes to retain mouse grab,
+  a filtering item may steal the grab. For example, Flickable may attempt
+  to steal a mouse grab if it detects that the user has begun to
+  move the viewport.
+
+  \sa keepMouseGrab()
+ */
+void QQuickItem::setKeepMouseGrab(bool keep)
+{
+    Q_D(QQuickItem);
+    d->keepMouse = keep;
+}
+
+/*!
+    Grabs the touch points specified by \a ids.
+
+    These touch points will be owned by the item until
+    they are released. Alternatively, the grab can be stolen
+    by a filtering item like Flickable. Use setKeepTouchGrab()
+    to prevent the grab from being stolen.
+
+    \sa ungrabTouchPoints(), setKeepTouchGrab()
+*/
+void QQuickItem::grabTouchPoints(const QList<int> &ids)
+{
+    Q_D(QQuickItem);
+    if (!d->canvas)
+        return;
+    QQuickCanvasPrivate *canvasPriv = QQuickCanvasPrivate::get(d->canvas);
+
+    QSet<QQuickItem*> ungrab;
+    for (int i = 0; i < ids.count(); ++i) {
+        QQuickItem *oldGrabber = canvasPriv->itemForTouchPointId.value(ids.at(i));
+        if (oldGrabber == this)
+            return;
+
+        canvasPriv->itemForTouchPointId[ids.at(i)] = this;
+        if (oldGrabber)
+            ungrab.insert(oldGrabber);
+    }
+    foreach (QQuickItem *oldGrabber, ungrab)
+        oldGrabber->touchUngrabEvent();
+}
+
+/*!
+    Ungrabs the touch points owned by this item.
+
+    \sa grabTouchPoints()
+*/
+void QQuickItem::ungrabTouchPoints()
+{
+    Q_D(QQuickItem);
+    if (!d->canvas)
+        return;
+    QQuickCanvasPrivate *canvasPriv = QQuickCanvasPrivate::get(d->canvas);
+
+    QMutableHashIterator<int, QQuickItem*> i(canvasPriv->itemForTouchPointId);
+    while (i.hasNext()) {
+        i.next();
+        if (i.value() == this)
+            i.remove();
+    }
+    touchUngrabEvent();
+}
+
+/*!
+    Returns a value indicating whether the touch points grabbed by this item
+    should remain with this item exclusively.
+
+    \sa setKeepTouchGrab(), keepMouseGrab()
+*/
+bool QQuickItem::keepTouchGrab() const
+{
+    Q_D(const QQuickItem);
+    return d->keepTouch;
+}
+
+/*!
+  The flag indicating whether the touch points grabbed
+  by this item should remain with this item is set to \a keep.
+
+  This is useful for items that wish to grab and keep specific touch
+  points following a predefined gesture.  For example,
+  an item that is interested in horizontal touch point movement
+  may set setKeepTouchGrab to true once a threshold has been
+  exceeded.  Once setKeepTouchGrab has been set to true, filtering
+  items will not react to the relevant touch points.
+
+  If the item does not indicate that it wishes to retain touch point grab,
+  a filtering item may steal the grab. For example, Flickable may attempt
+  to steal a touch point grab if it detects that the user has begun to
+  move the viewport.
+
+  \sa keepTouchGrab(), setKeepMouseGrab()
+ */
+void QQuickItem::setKeepTouchGrab(bool keep)
+{
+    Q_D(QQuickItem);
+    d->keepTouch = keep;
+}
+
+/*!
+    \qmlmethod object QtQuick2::Item::mapFromItem(Item item, real x, real y)
+
+    Maps the point (\a x, \a y), which is in \a item's coordinate system, to
+    this item's coordinate system, and returns an object with \c x and \c y
+    properties matching the mapped coordinate.
+
+    If \a item is a \c null value, this maps the point from the coordinate
+    system of the root QML view.
+*/
+/*!
+    \qmlmethod object QtQuick2::Item::mapToItem(Item item, real x, real y)
+
+    Maps the point (\a x, \a y), which is in this item's coordinate system, to
+    \a item's coordinate system, and returns an object with \c x and \c y
+    properties matching the mapped coordinate.
+
+    If \a item is a \c null value, this maps \a x and \a y to the coordinate
+    system of the root QML view.
+*/
+QPointF QQuickItem::mapToItem(const QQuickItem *item, const QPointF &point) const
+{
+    QPointF p = mapToScene(point);
+    if (item)
+        p = item->mapFromScene(p);
+    return p;
+}
+
+QPointF QQuickItem::mapToScene(const QPointF &point) const
+{
+    Q_D(const QQuickItem);
+    return d->itemToCanvasTransform().map(point);
+}
+
+QRectF QQuickItem::mapRectToItem(const QQuickItem *item, const QRectF &rect) const
+{
+    Q_D(const QQuickItem);
+    QTransform t = d->itemToCanvasTransform();
+    if (item)
+        t *= QQuickItemPrivate::get(item)->canvasToItemTransform();
+    return t.mapRect(rect);
+}
+
+QRectF QQuickItem::mapRectToScene(const QRectF &rect) const
+{
+    Q_D(const QQuickItem);
+    return d->itemToCanvasTransform().mapRect(rect);
+}
+
+QPointF QQuickItem::mapFromItem(const QQuickItem *item, const QPointF &point) const
+{
+    QPointF p = item?item->mapToScene(point):point;
+    return mapFromScene(p);
+}
+
+QPointF QQuickItem::mapFromScene(const QPointF &point) const
+{
+    Q_D(const QQuickItem);
+    return d->canvasToItemTransform().map(point);
+}
+
+QRectF QQuickItem::mapRectFromItem(const QQuickItem *item, const QRectF &rect) const
+{
+    Q_D(const QQuickItem);
+    QTransform t = item?QQuickItemPrivate::get(item)->itemToCanvasTransform():QTransform();
+    t *= d->canvasToItemTransform();
+    return t.mapRect(rect);
+}
+
+QRectF QQuickItem::mapRectFromScene(const QRectF &rect) const
+{
+    Q_D(const QQuickItem);
+    return d->canvasToItemTransform().mapRect(rect);
+}
+
+
+/*!
+    \qmlmethod QtQuick2::Item::forceActiveFocus()
+
+    Forces active focus on the item.
+
+    This method sets focus on the item and makes sure that all the focus scopes
+    higher in the object hierarchy are also given the focus.
+*/
+
+/*!
+    Forces active focus on the item.
+
+    This method sets focus on the item and makes sure that all the focus scopes
+    higher in the object hierarchy are also given the focus.
+*/
+
+/*!
+  \qmlmethod QtQuick2::Item::childAt(real x, real y)
+
+  Returns the visible child item at point (\a x, \a y), which is in this
+  item's coordinate system, or \c null if there is no such item.
+*/
+
+/*!
+  Returns the visible child item at point (\a x, \a y), which is in this
+  item's coordinate system, or 0 if there is no such item.
+*/
+
+/*!
+  \qmlproperty list<State> QtQuick2::Item::states
+  This property holds a list of states defined by the item.
+
+  \qml
+  Item {
+      states: [
+          State {
+              // ...
+          },
+          State {
+              // ...
+          }
+          // ...
+      ]
+  }
+  \endqml
+
+  \sa {qmlstate}{States}
+*/
+/*!
+  \qmlproperty list<Transition> QtQuick2::Item::transitions
+  This property holds a list of transitions defined by the item.
+
+  \qml
+  Item {
+      transitions: [
+          Transition {
+              // ...
+          },
+          Transition {
+              // ...
+          }
+          // ...
+      ]
+  }
+  \endqml
+
+  \sa {QML Animation and Transitions}{Transitions}
+*/
+/*
+  \qmlproperty list<Filter> QtQuick2::Item::filter
+  This property holds a list of graphical filters to be applied to the item.
+
+  \l {Filter}{Filters} include things like \l {Blur}{blurring}
+  the item, or giving it a \l Reflection.  Some
+  filters may not be available on all canvases; if a filter is not
+  available on a certain canvas, it will simply not be applied for
+  that canvas (but the QML will still be considered valid).
+
+  \qml
+  Item {
+      filter: [
+          Blur {
+              // ...
+          },
+          Reflection {
+              // ...
+          }
+          // ...
+      ]
+  }
+  \endqml
+*/
+
+/*!
+  \qmlproperty bool QtQuick2::Item::clip
+  This property holds whether clipping is enabled. The default clip value is \c false.
+
+  If clipping is enabled, an item will clip its own painting, as well
+  as the painting of its children, to its bounding rectangle.
+
+  Non-rectangular clipping regions are not supported for performance reasons.
+*/
+
+/*!
+  \property QQuickItem::clip
+  This property holds whether clipping is enabled. The default clip value is \c false.
+
+  If clipping is enabled, an item will clip its own painting, as well
+  as the painting of its children, to its bounding rectangle. If you set
+  clipping during an item's paint operation, remember to re-set it to
+  prevent clipping the rest of your scene.
+
+  Non-rectangular clipping regions are not supported for performance reasons.
+*/
+
+/*!
+  \qmlproperty string QtQuick2::Item::state
+
+  This property holds the name of the current state of the item.
+
+  This property is often used in scripts to change between states. For
+  example:
+
+  \js
+  function toggle() {
+      if (button.state == 'On')
+          button.state = 'Off';
+      else
+          button.state = 'On';
+  }
+  \endjs
+
+  If the item is in its base state (i.e. no explicit state has been
+  set), \c state will be a blank string. Likewise, you can return an
+  item to its base state by setting its current state to \c ''.
+
+  \sa {qmlstates}{States}
+*/
+
+/*!
+  \qmlproperty list<Transform> QtQuick2::Item::transform
+  This property holds the list of transformations to apply.
+
+  For more information see \l Transform.
+*/
+
+/*!
+    \enum QQuickItem::TransformOrigin
+
+    Controls the point about which simple transforms like scale apply.
+
+    \value TopLeft The top-left corner of the item.
+    \value Top The center point of the top of the item.
+    \value TopRight The top-right corner of the item.
+    \value Left The left most point of the vertical middle.
+    \value Center The center of the item.
+    \value Right The right most point of the vertical middle.
+    \value BottomLeft The bottom-left corner of the item.
+    \value Bottom The center point of the bottom of the item.
+    \value BottomRight The bottom-right corner of the item.
+*/
+
+
+/*!
+  \qmlproperty bool QtQuick2::Item::activeFocus
+
+  This property indicates whether the item has active focus.
+
+  An item with active focus will receive keyboard input,
+  or is a FocusScope ancestor of the item that will receive keyboard input.
+
+  Usually, activeFocus is gained by setting focus on an item and its enclosing
+  FocusScopes. In the following example \c input will have activeFocus.
+  \qml
+  Rectangle {
+      FocusScope {
+          focus: true
+          TextInput {
+              id: input
+              focus: true
+          }
+      }
+  }
+  \endqml
+
+  \sa focus, {qmlfocus}{Keyboard Focus}
+*/
+
+/*!
+  \qmlproperty bool QtQuick2::Item::focus
+  This property indicates whether the item has focus within the enclosing focus scope. If true, this item
+  will gain active focus when the enclosing focus scope gains active focus.
+  In the following example, \c input will be given active focus when \c scope gains active focus.
+  \qml
+  Rectangle {
+      FocusScope {
+          id: scope
+          TextInput {
+              id: input
+              focus: true
+          }
+      }
+  }
+  \endqml
+
+  For the purposes of this property, the scene as a whole is assumed to act like a focus scope.
+  On a practical level, that means the following QML will give active focus to \c input on startup.
+
+  \qml
+  Rectangle {
+      TextInput {
+          id: input
+          focus: true
+      }
+  }
+  \endqml
+
+  \sa activeFocus, {qmlfocus}{Keyboard Focus}
+*/
+
+
+/*!
+  \property QQuickItem::anchors
+  \internal
+*/
+
+/*!
+  \property QQuickItem::left
+  \internal
+*/
+
+/*!
+  \property QQuickItem::right
+  \internal
+*/
+
+/*!
+  \property QQuickItem::horizontalCenter
+  \internal
+*/
+
+/*!
+  \property QQuickItem::top
+  \internal
+*/
+
+/*!
+  \property QQuickItem::bottom
+  \internal
+*/
+
+/*!
+  \property QQuickItem::verticalCenter
+  \internal
+*/
+
+/*!
+  \property QQuickItem::focus
+  \internal
+*/
+
+/*!
+  \property QQuickItem::transform
+  \internal
+*/
+
+/*!
+  \property QQuickItem::transformOrigin
+  \internal
+*/
+
+/*!
+  \property QQuickItem::activeFocus
+  \internal
+*/
+
+/*!
+  \property QQuickItem::baseline
+  \internal
+*/
+
+/*!
+  \property QQuickItem::data
+  \internal
+*/
+
+/*!
+  \property QQuickItem::resources
+  \internal
+*/
+
+/*!
+  \property QQuickItem::state
+  \internal
+*/
+
+/*!
+  \property QQuickItem::states
+  \internal
+*/
+
+/*!
+  \property QQuickItem::transformOriginPoint
+  \internal
+*/
+
+/*!
+  \property QQuickItem::transitions
+  \internal
+*/
+
+bool QQuickItem::event(QEvent *ev)
+{
+#if 0
+    if (ev->type() == QEvent::PolishRequest) {
+        Q_D(QQuickItem);
+        d->polishScheduled = false;
+        updatePolish();
+        return true;
+    } else {
+        return QObject::event(ev);
+    }
+#endif
+    if (ev->type() == QEvent::InputMethodQuery) {
+        QInputMethodQueryEvent *query = static_cast<QInputMethodQueryEvent *>(ev);
+        Qt::InputMethodQueries queries = query->queries();
+        for (uint i = 0; i < 32; ++i) {
+            Qt::InputMethodQuery q = (Qt::InputMethodQuery)(int)(queries & (1<<i));
+            if (q) {
+                QVariant v = inputMethodQuery(q);
+                query->setValue(q, v);
+            }
+        }
+        query->accept();
+        return true;
+    } else if (ev->type() == QEvent::InputMethod) {
+        inputMethodEvent(static_cast<QInputMethodEvent *>(ev));
+        return true;
+    }
+    return QObject::event(ev);
+}
+
+#ifndef QT_NO_DEBUG_STREAM
+QDebug operator<<(QDebug debug, QQuickItem *item)
+{
+    if (!item) {
+        debug << "QQuickItem(0)";
+        return debug;
+    }
+
+    debug << item->metaObject()->className() << "(this =" << ((void*)item)
+          << ", name=" << item->objectName()
+          << ", parent =" << ((void*)item->parentItem())
+          << ", geometry =" << QRectF(item->pos(), QSizeF(item->width(), item->height()))
+          << ", z =" << item->z() << ')';
+    return debug;
+}
+#endif
+
+qint64 QQuickItemPrivate::consistentTime = -1;
+void QQuickItemPrivate::setConsistentTime(qint64 t)
+{
+    consistentTime = t;
+}
+
+class QElapsedTimerConsistentTimeHack
+{
+public:
+    void start() {
+        t1 = QQuickItemPrivate::consistentTime;
+        t2 = 0;
+    }
+    qint64 elapsed() {
+        return QQuickItemPrivate::consistentTime - t1;
+    }
+    qint64 restart() {
+        qint64 val = QQuickItemPrivate::consistentTime - t1;
+        t1 = QQuickItemPrivate::consistentTime;
+        t2 = 0;
+        return val;
+    }
+
+private:
+    qint64 t1;
+    qint64 t2;
+};
+
+void QQuickItemPrivate::start(QElapsedTimer &t)
+{
+    if (QQuickItemPrivate::consistentTime == -1)
+        t.start();
+    else
+        ((QElapsedTimerConsistentTimeHack*)&t)->start();
+}
+
+qint64 QQuickItemPrivate::elapsed(QElapsedTimer &t)
+{
+    if (QQuickItemPrivate::consistentTime == -1)
+        return t.elapsed();
+    else
+        return ((QElapsedTimerConsistentTimeHack*)&t)->elapsed();
+}
+
+qint64 QQuickItemPrivate::restart(QElapsedTimer &t)
+{
+    if (QQuickItemPrivate::consistentTime == -1)
+        return t.restart();
+    else
+        return ((QElapsedTimerConsistentTimeHack*)&t)->restart();
+}
+
+/*!
+    \fn bool QQuickItem::isTextureProvider() const
+
+    Returns true if this item is a texture provider. The default
+    implementation returns false.
+
+    This function can be called from any thread.
+ */
+
+/*!
+    \fn QSGTextureProvider *QQuickItem::textureProvider() const
+
+    Returns the texture provider for an item. The default implementation
+    returns 0.
+
+    This function may only be called on the rendering thread.
+ */
+
+QT_END_NAMESPACE
+
+#include <moc_qquickitem.cpp>